WO2008007803A1 - Antistatic polyester false twist yarn, process for producing the same, and antistatic special composite false twist yarn including the antistatic polyester false twist yarn - Google Patents

Antistatic polyester false twist yarn, process for producing the same, and antistatic special composite false twist yarn including the antistatic polyester false twist yarn Download PDF

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Publication number
WO2008007803A1
WO2008007803A1 PCT/JP2007/064128 JP2007064128W WO2008007803A1 WO 2008007803 A1 WO2008007803 A1 WO 2008007803A1 JP 2007064128 W JP2007064128 W JP 2007064128W WO 2008007803 A1 WO2008007803 A1 WO 2008007803A1
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WO
WIPO (PCT)
Prior art keywords
yarn
false
polyester
antistatic
false twisted
Prior art date
Application number
PCT/JP2007/064128
Other languages
French (fr)
Japanese (ja)
Inventor
Masaaki Yanagihara
Suguru Nakajima
Original Assignee
Teijin Fibers Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2006194238A external-priority patent/JP4818004B2/en
Priority claimed from JP2006195539A external-priority patent/JP4818007B2/en
Application filed by Teijin Fibers Limited filed Critical Teijin Fibers Limited
Priority to EP07768434A priority Critical patent/EP2042626A4/en
Priority to US12/307,895 priority patent/US20090308048A1/en
Priority to CN2007800267148A priority patent/CN101490322B/en
Priority to CA002658091A priority patent/CA2658091A1/en
Publication of WO2008007803A1 publication Critical patent/WO2008007803A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/06—Spindles
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • the present invention relates to an antistatic polyester false twisted yarn, a method for producing the same, and an antistatic special composite false twisted yarn including the antistatic polyester false twisted yarn. More specifically, a polyester false twisted yarn having excellent antistatic properties with excellent durability, a method for stably producing such false twisted yarn at high speed, and the antistatic polyester false twisted yarn It is related with the antistatic special composite false twisted yarn of the core sheath structure containing. Background art
  • Polyester especially polyethylene terephthalate or aromatic polyester mainly composed thereof (hereinafter abbreviated as PET-based polyester), has many excellent properties, so it can be used for molding fibers, films, sheets, etc. Widely used as a material.
  • PET-based polyester since polyester is hydrophobic, its use in fields where antistatic properties are required is limited.
  • antistatic properties antistatic properties
  • a method of blending a polyester with a polyoxyalkylene-based polyether compound see Japanese Examined Patent Publication No.
  • Twisted yarn is known (for example, see Japanese Examined Patent Publication No. 611-1973 3).
  • An object of the present invention is to provide a novel PET-based polyester false twisted yarn capable of eliminating the above-mentioned drawbacks of the conventional products and obtaining a polyester fabric excellent in antistatic performance, and the polyester temporary It is possible to provide a method capable of stably producing a twisted yarn, and furthermore, it is possible to obtain a spun-like polyester fabric having a very good bulkiness and a feeling of span and excellent antistatic performance. It is intended to provide a novel polyester composite false twisted yarn and a method for stably producing the composite false twisted yarn.
  • polyester unstretched yarns composed of a polyester composition containing a specific antistatic agent within a specific range, and a specific false twister. Used, extended under specific temperature and twist conditions It has been found that a new polyester false twisted yarn that can be made into a polyester fabric with good durability, texture, etc. and excellent anti-static performance can be produced stably by carrying out simultaneous stretching and false twisting. The present invention has been reached.
  • the present inventors configured the core yarn to be composed of a polyester yarn containing a specific antistatic agent in a specific ratio, and the sheath yarn to be polymethyl.
  • Consists of polyester yarns containing a specific proportion of methacrylate polymer or polystyrenic polymer, and the above-mentioned unstretched yarn for core yarn and unstretched yarn for sheath yarn are aligned and specified. If the simultaneous false twisting is performed under the above conditions, the sheath yarn can wrap the antistatic core yarn uniformly in the yarn length direction, resulting in very good bulkiness and a sense of span.
  • the present inventors have found that a polyester composite false twisted yarn that can be made into a spun-like polyester fabric excellent in electric performance can be manufactured with high productivity with greatly improved process stability.
  • a false twisted yarn of antistatic polyester multifilament composed of an aromatic polyester composition containing a compound, wherein the false half-life of the false twisted yarn is 60 seconds or less, and Antistatic polyester false twisted yarn characterized by a crimping rate of 10 to 20%,
  • a non-stretched yarn having a birefringence of 0.02 to 0.05 obtained by melt spinning an aromatic polyester composition containing is stretched under the conditions satisfying the following (i to (2) at the same time: Method for producing antistatic polyester false twisted yarn characterized by simultaneous false twisting (Ii) As a false twister, it is a triaxial friction disk type, and the material of the lowermost disk located at the untwisting section is ceramic, and the contact length between the disk and the running yarn is 2.5-0. Use a disk that is 5 mm and whose diameter is 90 to 98% of the diameter of the disk just above.
  • the number of false twists T (twice m) is set to 1 5 000 / Y 1/2 ⁇ T ⁇ 3 5000 / ⁇ 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
  • ⁇ Force More than 75 mol% of the repeating units consist of ethylene terephthalate units, (a) polyoxyalkylene polyethers, and (b) polyesters that are substantially non-reactive.
  • a special composite false twisted yarn comprising polyester multifilaments composed of an aromatic polyester composition containing 0% by weight, wherein the processed yarn has a charged friction pressure of 2000 V or less, and a crimp rate of 2 to 8 %, And the average yarn length of the sheath yarn (B) is 10 to 20% longer than the average yarn length of the core yarn (A). , And
  • polyester multifilament When drawing false twisting of polyester multifilament, it contains (a) a polyoxyalkylene polyether and (b) an organic ionic compound that is substantially non-reactive with polyester.
  • the antistatic special composite characterized by combining the unstretched polyester multifilament (B,) containing / 0 and stretching and false twisting under the conditions satisfying all of the following (1) to (4) False twisted yarn manufacturing method
  • the false twisting temperature is 1 70 ° C ⁇ 300 ° C
  • the number of false twists T shall be 1 5000 / Y 1/2 ⁇ T ⁇ 3 5000 / ⁇ 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
  • Fig. 1 is a schematic diagram of a drawing simultaneous false twisting machine for producing a preliminarily processed yarn used in the present invention.
  • 1 is a polyester undrawn yarn or spun mixed yarn
  • 2 is a yarn guide
  • 3, 3 is a feed roller
  • 4 is an interlaced nose
  • 5 is a first stage heater
  • 6 is a cooling plate
  • 7 is a false twister (3-axis friction disc unit)
  • 8 is the first delivery port 9 is the second stage heater
  • 10 is the second delivery roller
  • 11 is the tapping roller
  • 12 is the polyester false twisted cheese.
  • FIG. 2 is a front view showing an embodiment of the false twisted disk unit used in the present invention.
  • 13 is a false twist disk
  • 14 is a guide disk
  • 15 is a rotating shaft
  • 16 is a timing belt
  • 17 is a drive belt.
  • the antistatic false twisted yarn of the present invention is composed of multifilaments made of a specific antistatic aromatic polyester composition, and has specific antistatic properties and crimpability.
  • embodiments of the present invention will be described in detail in the order of the aromatic polyester composition constituting the antistatic false twisted yarn, the characteristics of the false twisted yarn and the method for producing the false twisted yarn.
  • ⁇ Composition forming antistatic false twisted yarn> Systems aromatic polyester as referred to in the present invention, polymer repeat units 7 5 mole 0/0 or more, preferably 8 5-1 0 0 mole 0/0, but a PET aromatic polyester is ethylene terephthalate, It is intended mainly for polymers obtained by the reaction of terephthalic acid or its ester-forming derivatives with ethylene glycol or its ester-forming derivatives.
  • an acid component may be obtained by copolymerizing a small amount of other bifunctional aromatic carboxylic acids in addition to terephthalic acid.
  • Such copolymer components include isophthalic acid, orthophthalic acid, 1,5-naphthalenedicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 4,4′-biphenyldicarboxylic acid 3,3 '-Biphenyl dicarboxylic acid, 4, 4'-biphenyl terdi-forced norevonic acid, 4, 4'-biphenylenomethane dicanolevonic acid, 4, 4,' -biphenylenosnorehon di canenolevonic acid, 4,4'-biphenylenopropylene didicarboxylic acid, 1,2-bis (phenoxy) ethane-4,4'-dicarboxylic acid, 2,5-anthracenedicar
  • difunctional aromatic carboxylic acids Two or more of these difunctional aromatic carboxylic acids may be used in combination.
  • these difunctional aromatic strength rubonic acid and bifunctional aliphatic carboxylic acids such as adipic acid, azelaic acid, sebacic acid and dodecanedioic acid, and difunctional hexanedicarboxylic acid
  • alicyclic carboxylic acids, 5-sodium sulfoisophthalic acid and the like can be used in combination.
  • diol compounds include propylene glycol, butylene glycol, hexylene glycol, neopentylene glycol, 2-methyl 1,3-propanediol, diethylene glycol, and trimethylene glycol.
  • Aliphatic diols, alicyclic diols such as 1,4-hexane hexanemethanol, and mixtures thereof may be copolymerized. Also, if the amount is small, Polyoxyalkylene glycols having both ends or one end unblocked can be copolymerized together with the copper compound.
  • a polycarboxylic acid such as trimellitic acid or pyromellitic acid
  • a polyol such as glycerin, trimethylol bread, or pentaerythritol
  • a polycarboxylic acid such as trimellitic acid or pyromellitic acid
  • a polyol such as glycerin, trimethylol bread, or pentaerythritol
  • PET-based aromatic polyesters include polyethylene terephthalate (PET) homopolymers, polyethylene isophthalate terephthalate, polyethylene butylene terephthalate, polyethylene terephthalate decane dicarboxylate. Copolyesters such as Of these, polyethylene terephthalate homopolymer having a good balance of mechanical properties and yarn-forming properties is particularly preferable.
  • PET polyethylene terephthalate
  • PET polyethylene isophthalate terephthalate
  • polyethylene butylene terephthalate polyethylene terephthalate decane dicarboxylate.
  • Copolyesters such as Of these, polyethylene terephthalate homopolymer having a good balance of mechanical properties and yarn-forming properties is particularly preferable.
  • PET aromatic polyester is synthesized by an arbitrary method.
  • esterification reaction directly between terephthalic acid and ethylene glycol
  • transesterification reaction between lower alkyl ester of terephthalenolic acid such as dimethyl terephthalate and ethylene glycol or terephthalic acid
  • First reaction to produce terephthalic acid glycol ester and Z or its low polymer by reacting with ethylene oxide, and then the product is heated under reduced pressure until the desired degree of polymerization is reached. It is easily produced by the second stage reaction to be condensed.
  • Such PET aromatic polyesters may contain stabilizers, matting agents, coloring agents, and other additives as necessary.
  • the antistatic aromatic polyester composition forming the false twisted yarn of the present invention is a mixture of two specific antistatic agents in the PET aromatic polyester as described above.
  • the polyoxyalkylene polyether (a) blended as the first antistatic agent in the present invention is composed of a single oxyalkylene unit as long as it is substantially insoluble in the PET aromatic polyester.
  • Polyki It may be a sialkylene glycol or a copolymerized polyoxyalkylene darlycol composed of two or more oxyalkylene units, and may be a polyoxyethylene-based polyether represented by the following general formula (I): Even if there is.
  • Z is an organic compound residue having 1 to 6 active hydrogen atoms
  • R 1 is an alkylene group or substituted alkylene group having 6 or more carbon atoms
  • R 2 is a hydrogen atom, a monovalent hydrocarbon group having 1 to 40 carbon atoms, or a monovalent hydroxyl group having 2 to 40 carbon atoms.
  • k is an integer of 1 to 6
  • n is an integer satisfying n ⁇ 7 OZk
  • m is an integer of 1 or more.
  • polyoxyalkylene polyethers include polyoxyethylene glycol having a molecular weight of 4000 or more, polyoxypropylene dallicol having a molecular weight of 1000 or more, polyoxytetramethylene glycol, ethylene oxide having a molecular weight of 2000 or more.
  • examples include compounds to which 6 or more substituted ethylene oxides are added.
  • An alkyl group-substituted ethylene oxide with 8 to 40 carbon atoms added to the end Compound is preferred.
  • the blending amount of the polyoxyalkylene polyether compound (a) is preferably 0.2 to 30 parts by weight, more preferably 2 to 6 parts by weight with respect to 100 parts by weight of the aromatic polyester. is there.
  • the blending amount is less than 0.2 parts by weight, the hydrophilicity is insufficient and sufficient antistatic property cannot be exhibited.
  • the antistatic effect is no longer
  • the mechanical properties of the resulting composition are impaired, and the polyether compound tends to bleed out, so that the penetration of the chip into the ruder during melt spinning is reduced. Spinning stability also deteriorates.
  • the aromatic polyester composition is further blended with an organic ionic compound (b) as a second antistatic agent in order to particularly improve antistatic properties.
  • an organic ionic compound is substantially non-reactive with the matrix PET-based aromatic polyester and substantially non-reactive with the polyoxyalkylene-based polyether compound (a).
  • sulfonic acid metal salts and sulfonic acid quaternary phosphonium salts represented by the following general formulas ( ⁇ ) and (III) are preferable. These may be used alone or in combination of two or more.
  • R represents an alkyl group having 3 to 30 carbon atoms or an aryl group having 6 to 40 carbon atoms
  • M represents an alkali metal or an alkaline earth metal.
  • R when R is an alkyl group, the alkyl group may be linear or have a branched side chain.
  • M is an alkali metal such as Na, K and Li, or an alkaline earth metal such as Mg and Ca, and Li, Na and K are preferred.
  • Such sulfonic acid metal salts may be used alone or in combination of two or more.
  • preferable metal sulfonates include sodium stearyl sulfonate, sodium octyl sulfonate, sodium dodecyl sulfonate, sodium alkyl sulfonate having an average of 14 carbon atoms, and dodecylbenzene sulfonic acid.
  • examples thereof include sodium mixtures, sodium dodecyl benzene sulfonate (hard type, soft type), lithium dodecyl benzene sulfonate (hard type, soft type), magnesium dodecyl benzene sulfonate (hard type, soft type), and the like.
  • RR 2 , R 3 and R 4 are each independently carbon An alkyl group having 3 to 30 atoms or an aryl group having 6 to 40 carbon atoms.
  • These I 1 , R 2 , R 3 and R 4 are each a lower alkyl group having 5 to 15 carbon atoms, a phenyl group or a benzyl group.
  • the total number of carbon atoms of RR 2 , R 3 and R 4 is preferably 60 or less.
  • Such quaternary phosphonium salts of sulfonic acids include tetrabutylphosphonium alkyl sulfonates having an average number of carbon atoms of the alkyl group of 14, and an average number of carbon atoms of the alkyl group of 14 Tetraphenylphosphonium alkyl sulfonate, alkyl sulfonate triphenyl phosphonium having an average number of carbon atoms of the alkyl group of 14, tetrabutyl phosphonium dodecinorensenorephonate (hard type soft type), Examples include decenorebenzenesolephonic acid tedrafeninophosphophosphonium (hard type, soft type), dodecylbenzenesulfonic acid benzyl triphenylphosphonium (hard type, soft type), etc.
  • Such sulfonic acid quaternary phosphonium salts Can be used alone or in combination of two or more May be used.
  • the organic ionic compound (b) only one kind may be used or two or more kinds may be used in combination.
  • the total amount of the organic ionic compound (b) is from 0.05 to 10 parts by weight based on 100 parts by weight of the aromatic polyester. : I is preferably in the range of 0 parts by weight, more preferably 0.5 to 4 parts by weight. If the amount is less than 0.5 parts by weight, the effect of improving the antistatic property is small. If the amount exceeds 10 parts by weight, the mechanical properties of the fiber are impaired, and the ionic compound also becomes squeezed out. Tip rudder penetration during melt spinning is reduced, and spinning stability is also deteriorated.
  • the above aromatic polyester composition is not limited to the purpose of the present invention, and other known additives such as pigments, dyes, matting agents, Antifouling agents, fluorescent brighteners, flame retardants, stabilizers, UV absorbers, lubricants, etc. may be added.
  • the false twisted yarn of the present invention has a crimp in the range of 10 to 20%, particularly 12 to 18%. When the crimp ratio is within this range, a woven or knitted fabric with an excellent soft feel can be obtained.
  • the crimp rate is less than 10%, the inter-yarn gaps in the knitted or knitted fabric are increased, and the dye is liable to enter, and the dyed spots are easily developed, which is not preferable. On the other hand, if it exceeds 20%, the surface of the resulting knitted or knitted fabric has a white color tone, and the texture of the woven or knitted fabric becomes unnatural.
  • the calcined yarn of the present invention has a charged half-life of 60 seconds or less, preferably 5 to 40 seconds.
  • the half-life of the charged voltage means that the false twisted yarn is knitted, dyed, conditioned, and the antistatic performance is measured according to JIS-L 1 0 94 Is a value measured by
  • the time (seconds) until the charged voltage decays to 12 of the initial charged voltage is measured, and the shorter the time (seconds), the better the antistatic performance.
  • Those with a charged half-life of more than 60 seconds do not have the antistatic effect or are very small, and therefore the purpose of the present invention cannot be achieved.
  • the false twisted yarn of the present invention has a total fineness in the range of 50 to 200 dte X (decitex) in order to make it easy to adjust the weaving density in a woven or knitted fabric within an appropriate range. Suitable, preferably in the range of 50 to 1550 dtex. When the total fineness is less than 50 dtex, it is not preferable because the tension of the knitted fabric is weak and it is difficult to obtain a sufficiently dense woven fabric. On the other hand, if it exceeds 200 dte X, the basis weight of the woven or knitted fabric becomes too large, which is not preferable for knitting.
  • the fineness of the single fiber is preferably 1.0 to 5.0 dte X, and the number of constituent filaments of the false twisted yarn is preferably 24 to 96.
  • the antistatic polyester false twisted yarn of the present invention described above can be stably manufactured with good productivity by, for example, the following method.
  • the above polyoxyalkylene diol (a) and ionic antistatic agent (b) Using an unstretched multifilament with a birefringence of 0.02 to 0.05, melt-spun from an aromatic polyester composition in which both are uniformly blended, satisfying the following (i) to (mouth) simultaneously Stretching simultaneous false twisting under the conditions
  • the number of false twists T (times Zm) shall be 1 5000ZY 1/2 ⁇ T ⁇ 35000ZY 1/2 with respect to the fineness (Y dtex) of false twisted yarn.
  • the aromatic polyester composition is melted and discharged from a spinneret, cooled and solidified to form a filament, each filament is combined, the necessary oil agent is added, and a spinning speed of 2000 to 450 OmZ min. In particular, it is preferably taken up under the conditions of 2500-3500 m / min.
  • the birefringence of the spun undrawn yarn needs to be in the range of 0.02 to 0.05. If the birefringence is less than 0.02, the tension during false twisting is low, surging is likely to occur, and thermal set spots occur due to yarn swinging, resulting in defective stains. This is not preferable because the draw ratio is increased during processing and the yarn becomes weak. On the other hand, when the birefringence index exceeds 0.05, it is not preferable because raw yarn fluff is likely to occur and the process becomes unstable.
  • the yarn is entangled by an air turbulent flow in the steps of spinning and stretching or false false twisting.
  • This air entanglement treatment may be performed in a separate process from the drawing false twisting process, but as shown in Fig. 1, an interlace nozzle (4) is installed in the drawing false twisting device and immediately before the drawing false twisting process. It is preferable to apply. This suppresses the occurrence of fluff and can have a positive effect on the handleability of the processed yarn.
  • another interlaced nozzle not shown
  • the yarn after heat setting under false twist is air entangled to completely mix and entangle the yarn, making it uniform in the yarn length direction. Let From this effect, it is possible to obtain a processed yarn that has a uniform antistatic performance in the yarn length direction and expresses a high-class feeling.
  • the undrawn yarn that has been subjected to the entanglement treatment immediately before the drawn calcining process is preferably subjected to crimping by applying it to a drawn false twisting machine equipped with a two-stage heater as shown in FIG.
  • the polyester false twisted yarn is used.
  • the above-mentioned polyester undrawn yarn (1) was pulled out of the package and placed between two pairs of feed rollers (3, 3 ') through the yarn guide (2). Air entanglement is performed by the interlace nozzle (4).
  • the unstretched yarn that has been entangled here is a three-axis friction disc type false twist that is rotating while being stretched at a predetermined ratio between the feed roller (3 ') and the first delivery roller (8). It is twisted with the tool (7).
  • the material of the lowermost disk located in the untwisting portion is ceramic, and the contact length between the disk and the running yarn is 2.5 to 0.5 mm.
  • a disk whose diameter is 90 to 98% of the diameter of the disk located immediately upstream is used.
  • the yarn is heat set in a twisted state by the first stage heater (5), then cooled by the cooling plate (6) on the downstream side, passed through the false twister (7) and untwisted. Is done.
  • the traveling yarn is reheated by a second stage heater (9) installed between the first delivery roller (8) and the second delivery roller (10), if necessary. And then air-entangled-and then wound with a take-off roller (1 1) as a cheese-like package (1 2) to produce the desired antistatic polyester false twisted yarn.
  • a second stage heater (9) installed between the first delivery roller (8) and the second delivery roller (10), if necessary.
  • a take-off roller (1 1) as a cheese-like package (1 2) to produce the desired antistatic polyester false twisted yarn.
  • both the first stage heater (5) and the second stage heater (9) are non-contact type.
  • the second stage heater (9) often omits SW-OF F (not used). It may be used as required for the texture required for the processed yarn.
  • the false twisting tool (7) is a triaxial friction disk type as shown in FIG. 2, and the lowermost disk located at the untwisting portion is made of ceramic. And the disk diameter immediately upstream of the disk diameter is 90 to 98%, and the contact length between the disk and the running yarn is 2.5 to 0.5 mm. It is important. That is, the false twisting tool (7) illustrated in Fig. 2 is of the triaxial friction disk type in which two false twisted disks (1 3) are attached to three rotating shafts (15), respectively.
  • each rotating shaft (15) is rotated at a predetermined speed by a timing belt (16) driven by a driving belt (17) to rotate each false twist disk (13).
  • the lowest disk (the lower disk attached to the left rotating shaft in the example of FIG. 2) located at least in the untwisting portion of the false twist disk (1 3) is made of ceramic, and Use a disk whose diameter is 90 to 98% of the diameter of the disk immediately upstream (the lower disk attached to the central rotating shaft in the example in Fig. 2).
  • the contact length between the ceramic disk and the running yarn is 2.5 to 0.5 mm.
  • the lowermost disk material of the false twisting tool (7) is ceramic.
  • the contact length between the disk and the running yarn is set to 2.5 to 0.5 mm when the completion of combustion and the crimped yarn enters the final untwisted portion. This is based on the knowledge of the present inventors that reducing the contact area between the disk and the yarn as much as possible and reducing the resistance is effective in significantly reducing the fluff. Similarly, if the diameter of the bottom disk is 90-98%, the resistance when moving the yarn guide to the next step (ie, heat set) is reduced. This is due to the fact that the yarn is in an appropriate zone where it can move smoothly.
  • the filament yarn constituting the undrawn yarn contains the above-mentioned two kinds of antistatic agents.
  • processed fluff will be generated, which will adversely affect the weaving, unwinding and quality of the woven product.
  • the contact length between the running yarn and the lowermost disk is set to 2.5 to 0.5 mm. It has been found to be particularly effective in significantly reducing processed fluff. _
  • the false twisting temperature in the present invention is required to be 170 to 300 ° C.
  • this temperature is less than 1.7 ° C, the crimping performance is low, the texture is hard, and if it exceeds 300 ° C, the processed yarn will become extremely flat and processed fluff will be generated. Therefore, it is not preferable.
  • the appropriate heater temperature here is based on a commercially available false twisting machine (Teijin Seiki 2 16 6 HTS-1 5 V), non-contact type 1.0 to 1.5 m long
  • the yarn speed is assumed to be 80 O m min. ⁇ . Therefore, when using a special heater or processing at ultra high speed, the set temperature should be adjusted appropriately. That is.
  • the heat treatment time of the yarn in the first stage heater may be set as appropriate depending on the type of heater, its length, temperature, etc. However, if the heat treatment time is too short, the crimp rate of the processed yarn is insufficient. In addition, stretched false twisted yarn due to fluctuations in tension, fluff of processed yarn, and stains on woven and knitted fabrics are likely to occur. On the other hand, if the heat treatment time is too long, the crimp rate tends to be too large. Usually, in the case of a non-contact type heater, a range of 0.04 to 0.12 seconds, particularly a range of 0.06 to 0.12 seconds is appropriate.
  • the draw ratio in draw false twisting is optimally from 1.4 to 2.4, and in the low-magnification zone outside this region, surging occurs and heat set spots due to yarn swinging occur, resulting in high magnification.
  • the processed yarn is flattened, and further processed fluff is generated, which is not preferable.
  • the false twist number T (times Zm) in the simultaneous simultaneous false twisting is set according to the fineness Y (dtex) of the false twisted yarn (1 5 000 to 3 5 000) ZY 1/2 , preferably (2 0 000 to 3 0 000) ⁇ ⁇ Set in the range of 1/2 .
  • the polyester undrawn yarn supplied to the drawing false twisting device is entangled between filaments in advance by an air flow. This air entanglement treatment may be performed separately from the drawing false twisting process. However, as shown in Fig.
  • the degree of entanglement is such that the degree of entanglement measured with a polyester false twisted yarn is 30 to 80 kenom, more preferably 50 to 70.
  • the degree of entanglement is less than 30m Zm, the filaments that make up the polyester undrawn yarn are poorly mixed and unraveled in the draw false twisting process (taken out of the original yarn package). Since the occurrence of single yarn breakage during twisting is increased, it is not preferable.
  • the degree of entanglement exceeds 80 ⁇ m, the entanglement between the filaments constituting the polyester false twisted yarn becomes too strong, and the yarn becomes hardened, which is not preferable.
  • the false twist disk is assembled into a false twist unit in which two disks are arranged on three axes.
  • the diameter of the false twist disk is less than 40 mm, the frictional damage due to the temporary burning disk on the yarn composed of the polyester composition increases rapidly, and the occurrence of yarn breakage and fluff increases.
  • the running angle of the yarn passing through the false twisted disc (the angle formed by the disc rotating shaft and the yarn running in contact with the outer circumference of the disc) is in the range of 30 to 48 degrees, especially 3 to 45 degrees. It is preferable to do. In this way, the yarn feeding action can be enhanced without lowering the twisting force of the disk, and twisting and deflaming can be performed in a stable state.
  • the contact length between the lowermost disk and the running yarn is set to 2.5 to 0.5 mm. This is effective in significantly reducing the processed fluff.
  • Fibers made of the above polyester composition are inferior in fibril resistance, and it is generally considered that such low fibril resistance fibers inevitably generate fuzz during processing. Because the fiber is processed with a fibril-resistant fiber structure in the strip, high-speed and stable false twisting can be performed without causing section deformation or fuzz during false twisting. It is possible to produce high-quality false twisted yarn.
  • the antistatic false twisted yarn of the present invention obtained as described above can be woven or knitted without twisting or without glue to obtain a good fabric. At this time, weaving and knitting are good, and there is no broken yarn and it is smooth. Further, according to the method of the present invention as described above, a polyester false twisted yarn excellent in antistatic property and durability can be produced efficiently and stably.
  • the antistatic special composite false twisted yarn of the present invention has a composite structure having a composite structure in which the outer periphery of the core yarn made of the antistatic polyester filament is substantially covered with a sheath yarn. It is a twisted yarn.
  • the sheath yarn constituting the composite false twisted yarn of the present invention is composed of the aromatic polyester as described above blended with a polymethylmethacrylate polymer and / or a polystyrene polymer.
  • the aromatic polyester is composed of ethylene terephthalate containing 75 mol% or more, especially 85 mol% or more of all repeating units, and its intrinsic viscosity (measured at 35 ° C using orthochlorophenol as a solvent). ) Is 0.7 or less, especially 0.7. 5 5 to 0.70 is preferred.
  • the aromatic polyester may have the same composition as the aromatic polyester constituting the core yarn, or may have a different composition.
  • polyesters may contain known additives such as pigments, dyes, matting agents, antifouling agents, fluorescent whitening agents, flame retardants, stabilizers, ultraviolet absorbers, and lubricants.
  • the polymethyl methacrylate polymer and polystyrene polymer blended in the aromatic polyester constituting the sheath yarn may be a non-crystalline polymer of atactic structure or syndiotactic structure, and a crystalline polymer of a isotactic structure. It may be. Further, a copolymer component may be contained within a range not hindering the object of the present invention.
  • the weight average molecular weight force is 800 to 200,000
  • melt index A (according to ASTM-D 1 2 3 8 temperature, temperature 2 30 ° C, load 3.8 kgf) is 10 Polymethyl methacrylate copolymer or isotactic polystyrene polymer having a content of ⁇ 30 g ZlO, or a weight average molecular weight of 800,000 to 200,000, and a melt index B (ASTM- As a particularly preferred example, a syndiotactic polystyrenic polymer or the like conforming to D 1 2 3 8, measured at a temperature of 30 ° C. and a load of 2.16 kgf) of 6 to 50 g and 10 minutes. Can do.
  • These polymers are preferable because they are excellent in thermal stability and dispersion stability when melt-spun to the polyester and melt-spun.
  • the inter-fiber friction resistance is estimated.
  • a woven or knitted fabric with a soft and smooth surface texture is realized, while the gloss at the time of dyeing is maintained at the same level as when it is not added.
  • the above poly The content of the mer needs to be 0.5 to 3.0% by weight in total based on the weight of the polyester, and is preferably 1.0 to 2.0% by weight. When the content is less than 0.5% by weight, the friction between the fibers and the fibers is not sufficiently lowered, and the texture of the resulting fabric becomes hard.
  • the composition of the sheath yarn has such an effect that it improves the feel of the surface of the composite yarn as described above, but the most important is that the sheath yarn is a polymethyl methacrylate polymer or the like.
  • the sheath yarn is a polymethyl methacrylate polymer or the like.
  • the elongation becomes higher than that of unblended yarns at the same spinning speed. Therefore, when these are subjected to composite false twisting, the blended yarns are easily placed in the sheath of the composite yarn, On the other hand, it is possible to obtain an effect that the antistatic yarns of the mating counterpart are easily arranged on the core.
  • polyester composition forming the sheath yarn may be added to a known additive, for example, a pigment, a dye, a decoloring agent, an antifouling agent, or a fluorescent whitening as long as the purpose of the present invention is not impaired.
  • Additives, flame retardants, stabilizers, UV absorbers, lubricants, etc. may be added.
  • the yarn group A of the core yarn and the yarn group B of the sheath yarn have different yarn lengths. It is preferable that the length is 10 to 20%, more preferably 12 to 18% longer than the strip group A.
  • the yarn group A is mainly arranged in the core portion of the composite false twisted yarn
  • the yarn group B is mainly arranged in the sheath portion to form a core-sheath structure.
  • the crimp rate of the composite false twisted yarn composed of the yarn group A and the yarn group B as described above is in the range of 2 to 8%, particularly in the range of 3 to 7%. It is necessary to have
  • the crimp rate By setting the crimp rate within this range, a woven or knitted fabric having a soft texture can be obtained.
  • the crimp rate is less than 2.0%, there are too many gaps between yarns in the case of a woven or knitted fabric, and it becomes easier for dyes to enter more than necessary at the time of dyeing. Since it becomes easy, it is not preferable.
  • it exceeds 8.0% the apricot on the surface of the resulting knitted or knitted fabric has a whitish tone and a feeling of flickering is not preferable.
  • the crimp ratios when the respective yarns are taken out from the yarn group A or the yarn group B constituting the composite false twisted yarn and measured individually are the same even if they are the same.
  • the yarn B tends to be arranged mainly in the sheath portion of the composite false twisted yarn. This is preferable because the texture of the smooth surface touch is improved.
  • the composite false twisted yarn of the present invention further has a charging friction pressure of 20:00 V or less, preferably in the range of 50000 V to 1500 V.
  • Charge friction pressure is a value measured by JISL 1 0 9 4 Chargeability test method B (friction band voltage measurement method) after anti-humidity adjustment and dyeing of composite false twisted yarn.
  • the frictional voltage is about 2200 V or less (preferably 1500 V or less), it can be evaluated that there is an antistatic effect.
  • the composite false twisted yarn of the present invention has a total fineness of 100 to 300 dte X (decitex), preferably 1 in order to make it easy to adjust the woven density in the case of a woven or knitted fabric.
  • a range of 3 0 to 2 7 0 dtex is appropriate.
  • the total fineness is less than 100 dte X, it is not preferable because it is difficult to obtain a sufficiently dense woven or knitted fabric. 1. If it exceeds 3 0 0 dte X, the basis weight of the woven or knitted fabric will be too large. It is not preferable for a woven or knitted fabric.
  • the total fineness ratio of the yarn group A and the yarn group B is preferably 40 60 to 60 40 for the former Z and the range of 45/55 to 55 Z45, in particular, for achieving finer expression.
  • the single fiber fineness of the yarn group A and the yarn group B may be the same or different, but the average single fiber fineness is 1.0 to 5.
  • O dtex preferably 1. It must be in the range of 2 to 4.0 dte X.
  • the average single fiber fineness is less than 1.0 d t e x, the mixing of the yarn group A and the yarn group B progresses too much, so that the surface of the resulting woven or knitted fabric becomes difficult to develop, which is not preferable.
  • the average single fiber fineness exceeds 5. O d t e x, the wind of the resulting knitted or knitted fabric is coarsely cured, and the surface becomes unpleasant.
  • the single yarn fineness of the yarn group that is more easily arranged in the core portion of the composite false twisted yarn is greater.
  • the polyester composite false twisted yarn for woven or knitted fabric of the present invention described above can be produced, for example, by the following method. That is, when a polyester multifilament is drawn by false twisting, a polyester undrawn yarn containing the polyoxyalkylene glycol (a) and the ionic antistatic agent (b) as a polyester yarn for processing ( ⁇ ') and the above-mentioned polymethylmethacrylate polymer and polyester undrawn yarn ( ⁇ ') blended with cocoon or polystyrene polymer, these are combined, and the following (1) to (4 ) At the same time satisfying the above conditions.
  • the number of false twists T (times Zm) shall be 1 5000ZY 1/2 ⁇ T ⁇ 35000 / Y 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
  • the low-stretch side undrawn yarn (') and the high-stretch side undrawn yarn ( ⁇ ') are spun and wound separately, and then combined and used for drawn false twisting.
  • the respective polymers may be melted and discharged simultaneously from different spinnerets, and each group of yarns may be combined and wound after being cooled and used for drawing false twisting.
  • the spinning speed is When melt-spun in the range of 2500 to 400 OmZ, particularly 300 0 to 3500 mZ, a polyester containing 0.5 to 3.0% by weight of a polymethylmethacrylate polymer and a polystyrene or polymer is A non-drawn yarn obtained by melt spinning polyester at the same speed is preferably 70 to 150%, particularly 90 to 30% larger because it can be obtained easily and efficiently.
  • a yarn containing an antistatic agent is easy to fibrillate and easily generate fuzz during false twisting.
  • the antistatic yarn is arranged in the core portion, and the core portion is wrapped with the yarn of the sheath portion.
  • the low elongation side undrawn yarn ( ⁇ ′) as described above and It is necessary to perform an air entanglement treatment on an undrawn yarn formed by combining or spinning and blending a high-stretch side undrawn yarn ( ⁇ ').
  • the air entanglement treatment may be performed in a separate process from the drawing false twisting process.
  • an interlace nozzle (4) is installed in the drawing false twisting machine and applied just before the drawing false twisting process. Is preferred. This suppresses the generation of neps due to the difference in elongation and has a positive effect on handling.
  • the interlaced nozzle (not shown) is used for air entanglement to the yarn that has been heat-set under false twisting so that the mixed fiber entanglement is completely uniformed and the core is aligned in the yarn length direction. Due to the effect of evenly wrapping the yarn with the sheath yarn, it has durable antistatic performance and can express a high-class feeling.
  • the surface of the fabric is drawn when the low elongation side yarn group ⁇ and high elongation side yarn group ⁇ are separated into a woven or knitted fabric during false twisting.
  • the degree of entanglement imparted by the interlace nozzle becomes too large, the entanglement between the single yarns will become too strong, and the texture when knitted or knitted will tend to be coarse, so it should be 80 pieces Zm or less. preferable.
  • the undrawn yarn subjected to the entanglement treatment is applied to a drawn false twisting machine equipped with a two-stage heater as shown in FIG. 1 to obtain a crimped polyester false twisted yarn.
  • the undrawn yarn (1) obtained by spinning and aligning two types of polyester compositions as described above is an interlace nozzle installed between two pairs of feed rollers (3, 3,). Air entanglement is performed by (4).
  • the undrawn yarn to which a predetermined entanglement is applied is applied by friction with the disk of the false twister (7) while being drawn between the feed roller ( 3 ') and the first delivery roller (8). Twisted.
  • the traveling yarn is a second stage heater (9) installed between the first delivery roller (8) and the second delivery roller (10), and is reheated as necessary.
  • the heat-set false twisted yarn is air entangled, it is wound up as a chiseled package (1 2) by a winding roller (1 1), and the desired antistatic polyester composite false twist A processed yarn is produced.
  • the first stage heater (5) and the second stage heater (9) are non-contact type in consideration of high-speed drawing false twisting.
  • the second stage heater (9) is often SW-OF F (not using the heater), but it may be used as required for the texture required for the processed yarn. Yes.
  • the false twister (7) force is a triaxial friction disc type as shown in Fig. 2 and the lowermost disc material located at the untwisting portion is ceramic, and the running yarn and It is important that the contact length with the disk is 2.5 to 0.5 mm, and that the disk has a diameter of 90 to 98% of the disk immediately upstream.
  • the false twisting tool (7) illustrated in Fig. 2 is a three-axis friction disk type with two false twisted disks (1 3) attached to three rotating shafts (15).
  • Each rotating shaft (15) is rotated at a predetermined speed by a timing belt (16) driven by a driving belt (17) to rotate each false twist disk (13).
  • at least the false-twisted disc (1 3), the lowest disc located in the untwisted portion (the lower disc attached to the left rotating shaft in the example of FIG. 2) is made of ceramic, and Use a disk whose diameter is 90 to 98% of the diameter of the disk immediately upstream (the lower disk attached to the central rotating shaft in the example in Fig. 2).
  • the contact length between the ceramic disk and the running yarn is 2.5 to 0.5 mm.
  • the lowermost disk material is preferably ceramic from the viewpoint of wear resistance.
  • the contact length between the running yarn and the disk should be 2.5 to 0.5 mm.
  • the contact area when the twisted yarn ends and the crimped yarn enters the final untwisted portion can be reduced as much as possible, the resistance can be reduced, and as a result, the fluff is significantly reduced.
  • Setting the diameter of the disk within the range of 90 to 98% of the disk diameter directly above reduces the resistance value when moving the yarn guide to the next step (specifically, heat set). It turned out that it was effective in moving smoothly.
  • setting the contact length between the running yarn and the disk to 2.5 to 0.5 mm is particularly effective in significantly reducing the processed fluff.
  • the calcining temperature in the present invention is required to be 1.70 to 300 ° C. If this temperature is less than 1700 ° C, the crimping performance is low and the texture is hard, and if it exceeds 300 ° C, the flatness of the processed yarn will be extremely advanced and processed fluff will be generated. It is not preferable.
  • the proper heater temperature here is based on a commercially available calorific processing machine (Teijin Seiki 2 16 6 HTS-1 5 V), non-contact type 1.0 to 1.5 m long
  • the yarn speed is assumed to be from 800 mZ min., Etc. Therefore, when using a special heater or processing at ultra high speed, the set temperature should be adjusted appropriately. That is.
  • the first heater in the twisted region is for improving the stretchability and false twisting property (twistability) of the unstretched yarn.
  • This temperature is 1 7 in the case of a non-contact heater. If the temperature is less than 0 ° C., the twistability is lowered and the desired crimp of the present invention cannot be imparted, and the texture of the woven or knitted fabric becomes paper-like. In addition, yarn breakage and fluff are more likely to occur during drawing false twisting, and crimped spots and stained spots are more likely to occur during dyeing. It ’s not good.
  • the first stage heater may be divided into the first half and the second half, but in the method of the present invention, the first half and the second half of the first stage heater are the same. Set to temperature.
  • the heat treatment time of the yarn in the first stage heater may be set as appropriate depending on the type of heater, its length, its temperature, etc., but if the heat treatment time is too short, the crimp rate tends to be insufficient. Also, stretched false twisted yarns, fuzz of false twisted yarns, and dyeing spots on woven or knitted fabrics due to fluctuations in tension tend to occur. On the other hand, if the length is too long, the crimp rate tends to be too large. For this reason, when heat-treating with a non-contact type heater, a range of 0.04 to 0.12 seconds is generally appropriate, particularly a range of 0.06 to 0.10 seconds.
  • the optimum zone is 1.4 to 1.7, and if it is outside this region, surging, generation, thermal set spots due to thread shaking, high magnification side Then, since the flatness of the processed yarn advances and processed fluff is generated, it is not preferable.
  • the number of false twists is preferably [(1 5000-35000) / Y 1/2 ] times Zn when the fineness of the composite false twisted yarn is Y (dte X), more preferably [(2 0000-30000) / Y 1 / 2 ] times Zm, set to the range. If the number of false twists is less than 1 5000ZY 1 2 nom, the fabric obtained when it becomes difficult to give a fine and strong crimp becomes paper-like and the texture becomes hard. If the number of false twists exceeds 35000ZY 1/2 times Zm, yarn breakage and fluffing increase. '
  • the drawing false twisting device which is mixed or spun and mixed.
  • air entanglement may be performed separately from the drawing false twisting process, an interlace nozzle is installed in the drawing false twisting apparatus as shown in Fig. 1, and air exchange is performed on the yarn immediately before drawing false twisting.
  • a method of performing an entanglement process is preferable.
  • the degree of air entanglement is such that the degree of entanglement measured with polyester false twisted yarn is 30 to 80 pieces Zn, more preferably 5 p to 70 pieces m.
  • the degree of entanglement is less than 30 pieces / m, the yarns constituting the polyester undrawn yarn are poorly mixed with each other, and during the drawing false twisting process, the yarn is broken and twisted during twisting and untwisting. It is not preferable because of the occurrence of single yarn breakage.
  • the degree of entanglement exceeds 80, the entanglement between the single yarns constituting the polyester false twisted yarn becomes too strong, and the yarn becomes hardened, which is not preferable.
  • the disk size of the false twisting tool is not particularly limited, but a disk having a diameter of 40 to 70 mm, preferably a disk having a diameter of 45 to 62 mm is preferable.
  • a disk having a diameter of 40 to 70 mm preferably a disk having a diameter of 45 to 62 mm is preferable.
  • two disks each are assembled and used as a false twist unit arranged on three axes.
  • the disc diameter is less than 4 Om m, the frictional damage caused by the disc in the yarn group A 'increases, and the occurrence of yarn breakage and fluff tends to increase.
  • the twisting force by the disk decreases, and it becomes difficult to provide sufficient crimp.
  • the running angle of the yarn passing through the disc (the angle formed by the disc rotating shaft and the yarn running in contact on the outer circumference of the disc) is in the range of 30 to 48 degrees, especially 3 to 45 degrees. It is preferable to do. In this way, the yarn feeding action can be enhanced and the twisting and untwisting can be performed in a stable state without reducing the twisting force of the disk.
  • a yarn containing an antistatic agent is easily fibrillated and easily generates fuzz during false twisting.
  • the antistatic yarn is arranged in the core portion, and the core portion is wrapped with the sheath portion yarn. Minimizing deformation during processing makes it difficult for fluff to come out during processing, and because of the selection of false twisting conditions as described above, combined with both, extremely good composite false twisted yarn with very little fluff generation Is obtained.
  • the composite false twisted yarn of the present invention obtained in this way can be made into a woven fabric with water jet room, etc. without twisting, without glue, and at this time, weaving property is good, and there is no yarn breakage. Smooth weaving.
  • the fabric comprising the polyester composite false-twisted yarn of the present invention has good antistatic properties, and has a very deep and high-class feeling in the sensory evaluation, and is soft and has a good fabric. It will be of a spanish-like texture that has a unique appearance.
  • each measured value shown in the example is a value measured by the following method.
  • “parts” means parts by weight unless otherwise specified.
  • the aromatic polyester composition was dissolved in ortho-chlorophenol and measured at 35 using a tuberde viscometer.
  • the number of times that the melt spinning was performed for one week in the melt spinning facility was recorded, and the number of times of spinning break per spindle per day was regarded as the spun yarn.
  • thread breakage due to human or mechanical factors was excluded from the number of breaks.
  • Crimp rate A polyester false twisted yarn sample was wound on a cassette frame with a tension of 0.04 4 c N / dte X to create a cassette of about 3 300 dtex. Two loads of 0.0 1 7 7 c N dte X and 0.1 7 7 c N / dtex were applied to one end of the cassette and the length SO (cm) after 1 minute was measured. The sample was treated in boiling water at 100 ° C for 20 minutes with the 0.17 7 c N / dte X load removed. After boiling water treatment 0. 0 1 7 7 c Remove the N / dtex load, let it dry naturally for 24 hours, and again 0.
  • Crimp rate (%) [(S 1-S 2) / S O] X 1 0 0
  • Level 3 A crisp or hard feel.
  • Rebenore 2 Span is slightly poor.
  • Level 3 A flat yarn-like feel or a hard feel.
  • the test piece was rubbed with a friction cloth while rotating, and the generated charged voltage was measured.
  • the specific procedure conforms to J IS L 1 0 94 Chargeability Test Method B (Friction Band Voltage Measurement Method). If this frictional voltage is about 2000 V or less (preferably 1 500 V or less), it is evaluated that there is an antistatic effect.
  • the melt viscosity (MVPM, MVP S and MVP Es) of the polymethylmethacrylate polymer, polystyrene polymer and polyester is Shimadzu flow tester manufactured by Shimadzu Corporation. Using a 1 mm long orifice, measurement was performed under a cylinder temperature of 295 ° C and a load of 20 KG. This is the value obtained by detecting the extrusion pressure at that time and extrapolating it to the viscosity equation.
  • the melt viscosity MVPE s of the measured substrate polyester was 140.000 poise. The ratio of the melt viscosity of the polymethyl methacrylate polymer or polystyrene polymer measured for this value was calculated.
  • the measurement of the elongation is performed by sampling the yarn groups A and B separately.
  • Direct elongation measurement was carried out in the state of fiber.
  • the measured values of the elongation of the sample yarn after blending tended to be 10 to 20% lower than those of the separately sampled yarn, but the difference in elongation was the same. It is.
  • a load of 0.1 7 6 c NZd tex (0.2 g / de) was applied to one end of a 50 cm composite false twisted yarn, suspended vertically, and marked accurately at intervals of 5 cm. .
  • the load was removed and the marking part was cut accurately to make 10 samples.
  • the above measurement was performed on 10 samples, and the average value of each was defined as L b (scabbard yarn length) and L a (core yarn length), and the yarn length difference was calculated by the following formula.
  • Dimethyl terephthalate 100 parts, Ethylene glycol 60 parts, Acetic acid Lucium monohydrate 0.06 parts (0.0 6 6 mol% with respect to dimethyl terephthalate) and Cobalt acetate tetrahydrate as color adjuster 0.0 1 3 (terephthalic 0.0 1 mol per le dimethyl 0/0) of the reaction were charged into an ester exchange reaction can over 4 hours under an atmosphere of nitrogen gas 2 from 1 4 0 ° C The temperature was raised to 20 ° C, and the ester exchange reaction was carried out while distilling out the methanol produced in the reaction vessel out of the system.
  • the dimethyl polysiloxane as a reaction mixture as a stabilizer trimethyl 0.0 5 8 parts of phosphoric acid (0.0 8 0 mole 0/0 for dimethyl terephthalate) in and defoamer 0. 0 2 4 copies were added.
  • the water-insoluble polyoxyethylene-based polyether represented by the following chemical formula ⁇ anti-turtle agent (a) ⁇ and sodium dodecylbenzenesulfonate ⁇ anti-static agent (b) ⁇ are each vacuumed in parts by weight as shown in Table 1.
  • the polycondensation reaction was allowed to proceed for 240 minutes, and then 0.4 parts of “Ilganox” manufactured by Cibakaigi Co., Ltd. as an antioxidant was added under vacuum, and then The polycondensation reaction was further performed for 30 minutes.
  • the polymer obtained by adding the antistatic agent in the polymerization reaction step was formed into a chip by a conventional method.
  • This antistatic agent-containing aromatic polyester composition had an intrinsic viscosity of 0.65 7 and a softening point of 2 58 ° C. HO ⁇ -CHC 0) -m -CH. CH 4 O One C j H 2 i + I
  • the chip thus obtained was dried by a conventional method.
  • the dried chips were supplied to a melt spinning facility, melted in a conventional manner, and introduced into a spin pack through a spin block. It is discharged from a spinneret with 36 circular discharge holes built into the spin pack, cooled and solidified with cooling air from a normal cross-flow type spinning cylinder, and a single spinning oil is applied while applying spinning oil.
  • the yarns were bundled as yarns and taken up at the speed shown in Table 1 to obtain polyester undrawn yarns having 140 dtex / 36 filaments. Table 1 shows the birefringence of each undrawn yarn.
  • the polyester unstretched yarn is stretched by Teijin Seisakusho Co., Ltd., drawn false twisting machine 2 1 6-ply “HT S—15 VJ, and as shown in FIG. In the subsequent stage, air entangled so that the entanglement degree of the processed yarn becomes 50 kenom at a flow rate of 60 n L / min while passing through an interlace nozzle having a pressure air blowing hole with a hole diameter of 1.8 mm.
  • the polyester false twisted yarn of 8 4 dte xZ36 filament average single yarn fineness 2.1 dtex was obtained. It is shown in Table 1.
  • the false twisting tool used in this case is a triaxial friction disc type X shown in Fig. 2 and the bottom disc located at the untwisting section is made of ceramic.
  • the contact length between the disc and the running yarn is 1.5 mm and the distance
  • the diameter of the disc is 57 mm, which is 95% of the diameter of the disk directly above.
  • the diameter of the polyurethane is 6 O mm and the thickness is 9 mm. What provided the false twist disk was used.
  • a knitted fabric was manufactured using the obtained false twisted yarn, and the antistatic property was measured. Table 1 shows the results of the antistatic performance of the knitted fabric.
  • polyester false twisted yarns manufactured outside the conditions of the present invention were evaluated as similar fabrics (Comparative Examples 1 to 5).
  • Method B (V) 1000 1100 800 2800 1850 3200 2100 2000 Texture, soft feeling
  • Example 2 The polyester undrawn yarn obtained in Example 2 was subjected to drawn false twisting under the conditions shown in Table 2, and polyester false twisted yarn having physical properties shown in Table 2 was obtained.
  • Table 2 shows the stretched false twisted yarn and the occurrence of fluff. Then, the quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 2 were obtained.
  • the unstretched polyester yarn obtained in Example 2 was subjected to a change in the lowermost disk contact length in false twisting and the ratio of the disk diameter to the diameter of the upstream disk (Standard) (% compared to St).
  • Stretch false twisting was performed under the conditions shown in Table 3, and polyester false twisted yarns having physical properties shown in Table 3 were obtained.
  • Table 3 shows the stretched false twisted yarn and fluff generation at this time. The quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 3 were obtained. '
  • St indicates the breaking strength (cNZ dte X) and EL indicates the breaking elongation (%).
  • the polyester undrawn yarn obtained in Example 2 was prepared under the conditions shown in Table 4 for the false twist number XY 1 Z 2 ⁇ where Y is the false twist yarn fineness (dte X) ⁇ and false twisting temperature. Except for the above, a false false twisting process was performed under the same conditions as in Example 2 to obtain polyester false twisted yarns shown in Table 4. Table 4 shows the stretched false twisted yarn and the occurrence of fluff. In addition, the quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 4 were obtained.
  • a 1 is a dry polymer containing the water-insoluble polyoxyethylene-based polyether ⁇ antistatic agent (a) ⁇ and sodium dodecylbenzenesulfonate ⁇ antistatic agent (b) ⁇ obtained by the method of Example 1. .
  • PET polyethylene terephthalate
  • PS AS TM-D 1 2 3 8 Indetas (measured at 300 ° C, load 2.16 kgf) is 10 g, 10 min) or polymethyl methacrylate polymer (PMMA: Menoto index according to AS TM-D 1 2 38 (temperature) 2) Measured at 30 ° C under a load of 3.8 kgf) and prepared polyethylene terephthalate pellets in the amounts shown in Table 5 and dried in the usual way (this is designated as dry polymer B1).
  • Comparative Examples 15 to 17 Similar experiments were performed outside the conditions of the present invention (Comparative Examples 15 to 17). As is apparent from Table 5, in Comparative Example 15 where the amount of polystyrene (PS) added is less than 0.5% by weight, the difference in elongation between the two undrawn filaments was less than 70%, and Further, the difference in yarn length between the yarn group A and the yarn group B of the false twisted yarn was less than 10%. .
  • PS polystyrene
  • a composite false twisted yarn was obtained.
  • the core of this polyester composite false twisted yarn is the low elongation side yarn group A (90 dte X / 3 6 filaments) made of polymer A 1 and the sheath is made of polymer B 1 Side yarn group B (90 0 dte xZ4 8 filaments).
  • polyester composite false twisted yarns were made into woven fabrics by the method described later, and their quality was evaluated. The results are shown in Table 5. As is clear from Table 5, the woven fabric in which the amount of polystyrene added in Comparative Example 15 was less than 0.5% by weight had a hard texture. In Comparative Example 2 in which the amount of polystyrene added exceeded 3.0% by weight, stretched false twisted yarns and fluff were frequently generated. Also, a knitted fabric was manufactured using the obtained composite false twisted yarn, and the antistatic property was measured. Table 5 also shows the results of antistatic performance.
  • the composite false twisted yarn was relaxed with boiling water for 20 minutes using a liquid dyeing machine, followed by a preset treatment, followed by further dyeing and final set treatment.
  • a fabric made of polyester composite false twisted yarn was used.
  • the fabric is relaxed with boiling water for 20 minutes using a liquid dyeing machine.
  • the Al force was reduced with a 3.5% by weight aqueous sodium hydroxide solution at the boiling temperature (weight reduction rate 20%).
  • dyeing and final set treatment were performed to obtain a fabric made of polyester composite false twisted yarn.
  • polyester undrawn yarn obtained in Example 15 was subjected to drawn false twisting under the false twisting conditions shown in Table 6 to obtain polyester composite false twisted yarns having physical properties shown in Table 6.
  • Table 6 shows the stretched false twisted yarn and the occurrence of fluff.
  • the quality of these polyester composite false twisted yarns was evaluated by the method described above, and the results shown in Table 6 were obtained. At this time, it was found that it is important from the viewpoint of anti-static properties to wrap the core yarn (anti-static component) and reduce the deformation to prevent the fluff from coming out.
  • Example 14 the same experiment was performed by changing the thread contact length of the most downstream disk and the ratio of the disk diameter to the diameter (Standard) of the disk immediately upstream of the disk (% of St). It was. The results are shown in Table 7.
  • St contrast indicates the ratio (%) of the diameter of the lowermost disk to the diameter (Standard) of the disk immediately upstream.
  • St / EL% St is the breaking strength (cN / dtex) and EL is the breaking elongation (%).
  • the polyester undrawn yarn obtained in Example 15 was subjected to drawing false twisting under the same drawing false twisting conditions as in Example 2 except that the number of false twists and the false twisting temperature were as shown in Table 8.
  • Polyester composite false twisted yarns shown in Table 8 were obtained.
  • Table 8 shows the stretched false twisted yarn and the occurrence of fluff.
  • the quality of these polyester composite false twisted yarns was evaluated by the method described above, and the results shown in Table 8 were obtained.
  • the “twist number” shown in Table 8 is the value of the twist number X (Y) 1/2 , and the total fineness (Y) of the composite false twisted yarn was 1800 dtex. In these experiments as well, it was confirmed that it is important from the viewpoint of anti-static properties to wrap the core yarn anti-static component and reduce deformation to prevent fluff from coming out. ,
  • the polyester false twisted yarn of the present invention contains the above antistatic agent, excellent antistatic properties are exhibited.
  • the antistatic agent migration is less likely to occur by stable false twisting at high speed without generating filament section deformation and fuzz during false twisting. Antistatic performance is exhibited outside.
  • a polyester false twisted yarn that can be made into a span-like polyester fabric excellent in antistatic properties. Moreover, according to the production method of the present invention, such antistatic false twisted yarn can be produced stably with high productivity.
  • the polyester composite false twisted yarn of the present invention contains two antistatic agents (a) and (b) as described above in the core yarn (A). Sex is expressed. That is, in the composite false twisted yarn, since the core-sheath structure including the core yarn (A) is stably formed in the yarn length direction, the antistatic property is unexpectedly exhibited in the processed yarn. Is done. This effect is particularly noticeable in the case of a woven fabric because it is not affected by twisting.
  • the core yarn (A) (hereinafter simply referred to as “core yarn”) that exhibits antistatic properties is wrapped in the sheath yarn (B) (hereinafter simply referred to as “sheath yarn”). Therefore, the antistatic component is wrapped during false twisting, and the deformation is reduced so that fluff does not come out during processing. This maintains good antistatic properties and reduces the occurrence of fluff during false twisting. , Improve productivity, and even fabric In this case, it becomes a factor of excellent washing durability. As a result, the present invention has a very good bulkiness and span feeling, and excellent anti-static properties, especially for applications where there is a high need to suppress static quirks such as school uniforms, uniforms, and dust proof clothing.
  • a polyester composite false twisted yarn can be provided that can be made into an excellent spunlike polyester fabric and has excellent handleability in the subsequent process.

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Abstract

An unstretched multifilament yarn made of a PET type aromatic polyester containing a polyoxyalkylene polyether and an organic ionic compound is stretched and simultaneously false-twisted under specific conditions. The false twisting is stably conducted at a high speed without causing section deformation or fluffing to thereby give a yarn of a fibrous structure having an excellent texture and unsusceptibility to fibrillation. Thus, a polyester false twist yarn having excellent long-term antistatic properties is produced. The unstretched yarn in combination with an unstretched polyester yarn comprising a poly(methyl methacrylate) polymer and/or polystyrene polymer is stretched and simultaneously false-twisted under specific conditions to thereby stably produce at a high speed a composite false twist yarn which is free from fluffing, has excellent bulkiness, gives a spun-yarn feeling, and has excellent long-term antistatic properties. This composite false-twisted yarn is useful especially in applications where static electricity is desired to be diminished, such as school uniforms, uniforms, and dust-proof clothing.

Description

明 細 書 制電性ポリエステル仮撚加工糸及びその製造方法並びに該制電性ポリエ ステル仮撚加工糸を含む制電性特殊複合仮撚加工糸 技術分野  Description Antistatic polyester false twisted yarn, method for producing the same, and antistatic special composite false twisted yarn including the antistatic polyester false twisted yarn Technical Field
本発明は、 制電性を有するポリエステル仮撚加工糸及びその製造方法 並びに該制電性ポリエステル仮撚加工糸を含む制電性特殊複合仮撚加工 糸に関するものである。 さらに詳しくは、 耐久性に優れた制電性を有す るポリエステル仮撚加工糸及びそのような仮撚加工糸を高速で安定して 製造する方法、、 並びに該制電性ポリエステル仮撚加工糸を含む芯鞘構造 の制電性特殊複合仮撚加工糸に関するものである。 背景技術  The present invention relates to an antistatic polyester false twisted yarn, a method for producing the same, and an antistatic special composite false twisted yarn including the antistatic polyester false twisted yarn. More specifically, a polyester false twisted yarn having excellent antistatic properties with excellent durability, a method for stably producing such false twisted yarn at high speed, and the antistatic polyester false twisted yarn It is related with the antistatic special composite false twisted yarn of the core sheath structure containing. Background art
ポリエステル、 中でもポリエチレンテレフタレー ト又はこれを主体と する芳香族ポリエステル （以下、 P E T系ポリエステルと略称する） 、 は多くの優れた特性を有しているために、 繊維、 フィルム、 シート等の 成形用材料として広く使用されている。 しかしながら、 ポリエステルは 疎水性であるため、 制電性が要求される分野での使用は制限されている。 従来より、 P E T系ポリエステルに親水性を付与して制電性 （帯電防 止性） を発現させようとする試みが行われており、 これまでに数多くの 提案がなされている。 例えば、 ポリエステルにポリオキシアルキレン系 ポリエーテル化合物を配合せしめる方法 （特公昭 3 9 - 5 2 1 4号公報 参照） 、 並びに、 ポリエステルに実質的に非相溶性のポリオキシアルキ レン系ポリエーテル化合物と有機 ·無機のイオン性化合物とを配合せし める方法が知られている （特公昭 4 4 - 3 1 8 2 8号公報、 特公昭 6 0 - 1 1 9 4 4号公報、 特開昭 5 3— 8 0 4 9 7号公報、 特開昭 5 3— 1 Polyester, especially polyethylene terephthalate or aromatic polyester mainly composed thereof (hereinafter abbreviated as PET-based polyester), has many excellent properties, so it can be used for molding fibers, films, sheets, etc. Widely used as a material. However, since polyester is hydrophobic, its use in fields where antistatic properties are required is limited. Conventionally, attempts have been made to impart antistatic properties (antistatic properties) by imparting hydrophilicity to PET polyester, and many proposals have been made so far. For example, a method of blending a polyester with a polyoxyalkylene-based polyether compound (see Japanese Examined Patent Publication No. 39-52 14), and a polyoxyalkylene-based polyether compound that is substantially incompatible with polyester Methods of blending organic and inorganic ionic compounds are known (Japanese Examined Patent Publication No. 4 4-3 1 8 28, Japanese Examined Publication No. 6 0-1 1 94 4, Japanese Unexamined Patent Publication No. 5 3-8 0 4 9 7 and JP 5 3-1
4 9 2 4 7号公報、 特開昭 6 0— 3 9 4 1 3号公報、 特開平 3 - 1 3 9JP 4 9 2 4 7, JP 60-3 9 4 1 3, JP 3-1 3 9
5 5 6号公報参照） 。 ところが、 これらのポリエステル組成物から製造 された繊維は、 通常の延伸糸 （F O Y ) においては、 制電性を有するも のの、 仮撚加工糸においては、 撚り変形によって毛羽が発生するため、 十分な制電性を有する実用的な P E T系ポリエステル仮撚加工糸は未だ 存在しないのが実情であった。 (See 5 5 6). However, manufactured from these polyester compositions In the ordinary drawn yarn (FOY), the obtained fiber has antistatic properties. However, in false twisted yarn, fluff is generated by twisting deformation. The fact is that PET-based polyester false twisted yarn does not yet exist.
一方、 従来、 伸度差を有する 2種以上のポリエステルフィラメント糸 を引き揃えて交絡処理し、 引き続いて仮撚加工することにより得られた、 嵩高性、 スパン感の良好な 2層構造の複合仮撚加工糸が知られている (例えば、 特公昭 6 1 - 1 9 7 3 3号公報参照） 。  On the other hand, conventionally, two or more types of polyester filament yarns with different elongations are aligned and entangled, followed by false twisting. Twisted yarn is known (for example, see Japanese Examined Patent Publication No. 611-1973 3).
しかしながら、 近年、 織編物の風合い、 肌触り、 外観等に関する要求 がますます高まってきているにも拘らず、 従来の仮撚加工糸を用いて製 編織された布帛では、 パチパチする静電気を抑えるといった制電性を有 する布帛は皆無に等しいと言えるほどである。 特に、 学生服、 ュニフォ ーム、 防塵衣等の静電気を抑える用途、 あるいは、 肌に直接触れること の多いブラウスやシャツ等の用途においても、 制電性を有する P E T系 ポリエステル仮撚加工糸布帛は現在に至るも提供されていないのが現状 である。 発明の開示  However, in recent years, in spite of increasing demands for the texture, texture, appearance, etc. of woven and knitted fabrics, fabrics knitted and woven using conventional false twisted yarns can suppress static electricity that cracks. It can be said that there is no electrical fabric. In particular, PET-based polyester false twisted yarn fabrics that have antistatic properties are used in applications such as school uniforms, uniforms, dust-proof clothing, etc. to suppress static electricity, or in blouses and shirts that often touch the skin. To date, it is not provided. Disclosure of the invention
本発明の目的は、 上述のような従来品の欠点を解消し、 制電性能に 優れたポリエステル布帛を得ることができる新規な P E T系ポリエステ ル仮撚加工糸を提供すること、 そして該ポリエステル仮撚加工糸を安定 して製造することができる方法を提供すること、 さらには非常に良好な 嵩高性、 スパン感を有するとともに、 制電性能にも優れたスパンライク なポリエステル布帛とすることができる新規なポリエステル複合仮撚加 ェ糸及び該複合仮撚加工糸を安定して製造する方法を提供することにあ る。  An object of the present invention is to provide a novel PET-based polyester false twisted yarn capable of eliminating the above-mentioned drawbacks of the conventional products and obtaining a polyester fabric excellent in antistatic performance, and the polyester temporary It is possible to provide a method capable of stably producing a twisted yarn, and furthermore, it is possible to obtain a spun-like polyester fabric having a very good bulkiness and a feeling of span and excellent antistatic performance. It is intended to provide a novel polyester composite false twisted yarn and a method for stably producing the composite false twisted yarn.
本発明者らは、. 上記目的を達成するために鋭意研究した結果、 特定の 制電剤を特定範囲内で含有するポリエステル組成物からなるポリエステ ル未延伸糸条を、 特定の仮撚具を用い、 特定の温度及び撚数条件下で延 伸同時仮撚加工すれば、 耐久性、 風合い等が良好で、 制電性能にも優れ たポリエステル布帛とすることができる新規なポリエステル仮撚加工糸 を、 安定して製造することができることを見出し、 本発明に到達した。 また、 本発明者らは、 ポリエステル系複合仮撚加工糸において、 芯部 糸条を特定の制電剤を特定割合で含有するポリエ テル糸条で構成する ととともに、 鞘部糸条をポリメチルメタァクリ レート系ポリマー又はポ リスチレン系ポリマーを特定割合で含有するポリエステル糸条で構成し、 上記の芯部糸条用未延伸糸と鞘部糸条用未延伸糸とを引き揃えて、 特定 の条件下で延伸同時仮撚加工すれば、 制電性の芯部糸条を鞘部糸条が糸 長方向に均一に包み込む効果により、 非常に良好な嵩高性とスパン感を 有するとともに、 制電性能にも優れたスパンライクなポリエステル布帛 となし得るポリエステル複合仮撚加工糸を、 飛躍的に向上した工程安定 性にて、 生産性よく製造することができることを見出し、 本発明に到達 した。 As a result of diligent research to achieve the above object, the present inventors have determined that polyester unstretched yarns composed of a polyester composition containing a specific antistatic agent within a specific range, and a specific false twister. Used, extended under specific temperature and twist conditions It has been found that a new polyester false twisted yarn that can be made into a polyester fabric with good durability, texture, etc. and excellent anti-static performance can be produced stably by carrying out simultaneous stretching and false twisting. The present invention has been reached. In addition, in the polyester-based composite false twisted yarn, the present inventors configured the core yarn to be composed of a polyester yarn containing a specific antistatic agent in a specific ratio, and the sheath yarn to be polymethyl. Consists of polyester yarns containing a specific proportion of methacrylate polymer or polystyrenic polymer, and the above-mentioned unstretched yarn for core yarn and unstretched yarn for sheath yarn are aligned and specified. If the simultaneous false twisting is performed under the above conditions, the sheath yarn can wrap the antistatic core yarn uniformly in the yarn length direction, resulting in very good bulkiness and a sense of span. The present inventors have found that a polyester composite false twisted yarn that can be made into a spun-like polyester fabric excellent in electric performance can be manufactured with high productivity with greatly improved process stability.
かく して本発明によれば、  Thus, according to the present invention,
•繰り返し単位の 7 5モル％以上がエチレンテレフタレ一ト単位からな り、 （a ) ポリオキシアルキレン系ポリエーテル、 及び （b ) 芳香族ポ リエステルとは実質的に非反応性の有機イオン性化合物を含有する芳香 族ポリエステル組成物から構成される制電性ポリエステルマルチフィラ メントの仮撚加工糸であって、 該仮撚加工糸の帯電圧半減期が 6 0秒以 下であり、 かつ、 捲縮率が 1 0〜 2 0 %であることを特徴とする制電性 ポリエステル仮撚加工糸、  • 75 mol% or more of the repeating units are composed of ethylene terephthalate units, (a) a polyoxyalkylene polyether, and (b) an organic ionic substance that is substantially non-reactive with aromatic polyesters. A false twisted yarn of antistatic polyester multifilament composed of an aromatic polyester composition containing a compound, wherein the false half-life of the false twisted yarn is 60 seconds or less, and Antistatic polyester false twisted yarn characterized by a crimping rate of 10 to 20%,
•繰り返し単位の 7 5モル0 /o以上がエチレンテレフタレート単位からな り、 （a ) ポリオキシアルキレン系ポリエーテル、 及び （b ) 芳香族ポ リエステルとは実質的に非反応性の有機イオン性化合物を含有する芳香 族ポリエステル組成物を溶融紡糸して得た、 複屈折率が 0 . 0 2〜0 . 0 5の未延伸糸条を、 下記 （ィ 〜 （二） を同時に満足する条件で延伸 同時仮撚加工することを特徴とする制電性ポリエステル仮撚加工糸の製 造方法 (ィ） 仮撚具.として、 3軸フリクションディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5 mmであり、 かつ、 該ディスクの径が 直上のディスク径の 9 0〜 9 8 %であるものを使用する • 75 mol 0 / o or more of repeating units consist of ethylene terephthalate units, (a) polyoxyalkylene polyethers, and (b) organic ionic compounds that are substantially non-reactive with aromatic polyesters. A non-stretched yarn having a birefringence of 0.02 to 0.05 obtained by melt spinning an aromatic polyester composition containing is stretched under the conditions satisfying the following (i to (2) at the same time: Method for producing antistatic polyester false twisted yarn characterized by simultaneous false twisting (Ii) As a false twister, it is a triaxial friction disk type, and the material of the lowermost disk located at the untwisting section is ceramic, and the contact length between the disk and the running yarn is 2.5-0. Use a disk that is 5 mm and whose diameter is 90 to 98% of the diameter of the disk just above.
(口） 仮撚加工温度を、 1 70°C〜 300°Cの温度とする  (Mouth) False twisting temperature: 1 70 ° C ~ 300 ° C
(ハ） 仮撚加工時の延伸倍率を 1. 4〜2. 4とする  (C) The draw ratio during false twisting is set to 1.4 to 2.4.
(二） 仮撚数 T (回ノ m) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5 000 /Y1/2≤T≤ 3 5000/Υ1/2とする、 (2) The number of false twists T (twice m) is set to 1 5 000 / Y 1/2 ≤T≤ 3 5000 / Υ 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
'芯部糸条 （Α) 力 繰り返し単位の 75モル％以上がエチレンテレフ タレート単位からなり、 （a) ポリオキシアルキレン系ポリエーテル、 及び （b) ポリエステルとは実質的に非反応性の有機イオン性化合物と を含有する芳香族ポリエステル組成物から構成される制電性ポリエステ ルマルチフィラメントからなり、 鞘部糸条 （B) 力 ポリメチルメタァ クリ レート系ポリマー及び/又はポリスチレン系ポリマーを 0. 5〜 3 . 0重量％含有する芳香族ポリエステル組成物から構成されるポリエス テルマルチフィラメントからなる特殊複合仮撚加工糸であって、 該加工 糸の帯電摩擦圧が 2000 V以下、 捲縮率が 2〜8%であり、 かつ、 鞘 部糸条 （B) の平均糸長が芯部糸条 （A) の平均糸長より 1 0〜20% 長いことを特徴とする制電性特殊複合仮撚加工糸、 及び  'Core yarn (Α) Force More than 75 mol% of the repeating units consist of ethylene terephthalate units, (a) polyoxyalkylene polyethers, and (b) polyesters that are substantially non-reactive. An antistatic polyester multifilament composed of an aromatic polyester composition containing an active compound, and a sheath yarn (B) force 0.5 to 3 polymethyl methacrylate polymer and / or polystyrene polymer. A special composite false twisted yarn comprising polyester multifilaments composed of an aromatic polyester composition containing 0% by weight, wherein the processed yarn has a charged friction pressure of 2000 V or less, and a crimp rate of 2 to 8 %, And the average yarn length of the sheath yarn (B) is 10 to 20% longer than the average yarn length of the core yarn (A). , And
♦ ポリエステルマルチフィラメントを延伸仮撚加工するに際し、 加工用 原糸として、 （a) ポリオキシアルキレン系ポリエーテル、 及び （b) ポリエステルとは実質的に非反応性の有機イオン性化合物とを含有して なる未延伸の制電性ポリエステマルチフィラメント （A， ) と、 ポリエ ステルマルチフィラメントにポリメチルメタァクリ レート系ポリマー及 び/又はポリスチレン系ポリマーを重量基準で 0. 5〜3. 0重量0 /0含 有する未延伸のポリエステルマルチフィラメント （B， ) とを合糸し、 下記 （ 1 ) 〜 （4) を全て満足する条件で延伸同時仮撚加工することを 特徴とする制電性特殊複合仮撚加工糸の製造方法 ♦ When drawing false twisting of polyester multifilament, it contains (a) a polyoxyalkylene polyether and (b) an organic ionic compound that is substantially non-reactive with polyester. The unstretched antistatic polyester multifilament (A,) and polyester methacrylate polymer and / or polystyrene polymer on the basis of weight of 0.5 to 3.0 weight 0 The antistatic special composite characterized by combining the unstretched polyester multifilament (B,) containing / 0 and stretching and false twisting under the conditions satisfying all of the following (1) to (4) False twisted yarn manufacturing method
( 1 ) 仮撚直前に空気交絡処理を施し、 30個以上 Ζπιの交絡を付与す る (1) Air entanglement treatment is performed immediately before false twisting, and 30 or more Ζπι entanglements are given. Ru
(2) 仮撚具として、 3軸フリ クショ ンディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5111111でぁり、 かつ、 該ディスクの径が 直上のディスク径の 90〜 9 8 %であるものを使用する  (2) As a false twister, it is a triaxial friction disc type, and the material of the lowermost disc located at the untwisting part is ceramic, and the contact length between the disc and the running yarn is 2.5 ~ 0. Use 5111111 and the diameter of the disk is 90 to 98% of the disk diameter immediately above.
(3) 仮撚加工温度を、 1 70°C〜 300°Cの温度とする  (3) The false twisting temperature is 1 70 ° C ~ 300 ° C
(4) 仮撚数 T (回ノ m) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5000/Y1/2≤T≤ 3 5000/Υ1/2とする、 (4) The number of false twists T (turns m) shall be 1 5000 / Y 1/2 ≤ T≤ 3 5000 / Υ 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
が提供される。 図面の簡単な説明 Is provided. Brief Description of Drawings
図 1は本発明で使用する、 仮燃加工糸を製造する延伸同時仮撚 Πェ機 の概略図であり、 1はポリエステル未延伸糸又は紡糸混繊糸、 2は糸ガ イ ド、 3、 3， はフィードローラー、 4はインターレースノズノレ、 5は 第 1段ヒーター、 6は冷却プレー ト、 7は仮撚具 （ 3軸フリ クショ ン ディスクユニッ ト） 、 8は第 1デリべリー口一ラー、 9は第 2段ヒー ター、 1 0は第 2デリべリーローラー、 1 1は卷取ローラー、 1 2はポ リエステル仮撚加工糸チーズである。  Fig. 1 is a schematic diagram of a drawing simultaneous false twisting machine for producing a preliminarily processed yarn used in the present invention. 1 is a polyester undrawn yarn or spun mixed yarn, 2 is a yarn guide, 3, 3, is a feed roller, 4 is an interlaced nose, 5 is a first stage heater, 6 is a cooling plate, 7 is a false twister (3-axis friction disc unit), 8 is the first delivery port 9 is the second stage heater, 10 is the second delivery roller, 11 is the tapping roller, and 12 is the polyester false twisted cheese.
また、 図 2は本発明で使用する仮撚ディスクュニッ トの一実施態様を 示す正面図であり、 1 3は仮撚ディスク、 1 4はガイ ドディスク、 1 5 は回転軸、 1 6はタイミングベルト、 1 7は駆動ベルトである。 発明を実施するための最良の形態  FIG. 2 is a front view showing an embodiment of the false twisted disk unit used in the present invention. 13 is a false twist disk, 14 is a guide disk, 15 is a rotating shaft, and 16 is a timing belt. , 17 is a drive belt. BEST MODE FOR CARRYING OUT THE INVENTION
本発明の制電性仮撚加工糸は、 特定の制電性芳香族ポリエステル組成 物からなるマルチフィラメントで構成され、 かつ特定の制電特性及び捲 縮性を有するものである。 以下、 本発明の実施形態について、 該制電性 仮撚加工糸を構成する芳香族ポリエステル組成物、 該仮撚加工糸の特性 及び該仮撚加工糸の製造方法、 の順に詳細に説明する。  The antistatic false twisted yarn of the present invention is composed of multifilaments made of a specific antistatic aromatic polyester composition, and has specific antistatic properties and crimpability. Hereinafter, embodiments of the present invention will be described in detail in the order of the aromatic polyester composition constituting the antistatic false twisted yarn, the characteristics of the false twisted yarn and the method for producing the false twisted yarn.
<制電性仮撚加工糸を形成する組成物 > 本発明でいう系芳香族ポリエステルは、 ポリマー繰り返し単位の 7 5 モル0 /0以上、 好ましくは 8 5〜 1 0 0モル0 /0、 がエチレンテレフタレー トである P E T芳香族ポリエステルであって、 主としてテレフタル酸又 はそのエステル形成性誘導体とエチレングリコール又はそのエステル形 成性誘導体との反応により得られる重合体を対象とする。 <Composition forming antistatic false twisted yarn> Systems aromatic polyester as referred to in the present invention, polymer repeat units 7 5 mole 0/0 or more, preferably 8 5-1 0 0 mole 0/0, but a PET aromatic polyester is ethylene terephthalate, It is intended mainly for polymers obtained by the reaction of terephthalic acid or its ester-forming derivatives with ethylene glycol or its ester-forming derivatives.
この P E T系芳香族ポリエステルにあっては、 酸成分として、 テレフ タル酸以外に他の二官能性芳香族カルボン酸を少量共重合したものでも よい。 かかるく共重合成分としては、 イソフタル酸、 オルトフタル酸、 1 , 5 -ナフタレンジカルボン酸、 2， 5 -ナフタレンジカルボン酸、 2 , 6 -ナフタレンジカルボン酸、 4 , 4 ' - ビフエニルジカルボン酸 3， 3 ' - ビフエニルジカルボン酸、 4， 4 ' - ビフエ二ルェ一テルジ 力ノレボン酸、 4 , 4 ' - ビフエ二ノレメタンジカノレボン酸、 4 , 4 ' - ビ フエニノレスノレホンジカノレボン酸、 4 , 4 ' - ビフエ二ノレイソプロピリ.デ ンジカルボン酸、 1 , 2 - ビス （フエノキシ） ェタン - 4， 4 ' - ジカ ルボン酸、 2， 5 - アントラセンジカルボン酸、 2 , 6 —アントラセン ジカルボン酸、 4 , 4 7 - p -フエ二レンジカルボン酸、 2 , 5 ピリ ジンジカルボン酸、 ]3 - ヒ ドロキシエトキシ安息香酸、 p -ォキシ安息 香酸等をあげることができる。 これらの二官能性芳香族カルボン酸は 2 種以上併用してもよい。 なお、 少量であればこれらの二官能性芳香族力 ルボン酸とともにアジピン酸、 ァゼライン酸、 セバシン酸、 ドデカンジ オン酸の如き二官能性脂肪族カルボン酸、 シク口へキサンジカルボン酸 の如き二官能性脂環族カルボン酸、 5—ナトリ ゥムスルホイソフタル酸 等を 1種又は 2種以上併用することもできる。 In this PET-based aromatic polyester, an acid component may be obtained by copolymerizing a small amount of other bifunctional aromatic carboxylic acids in addition to terephthalic acid. Such copolymer components include isophthalic acid, orthophthalic acid, 1,5-naphthalenedicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 4,4′-biphenyldicarboxylic acid 3,3 '-Biphenyl dicarboxylic acid, 4, 4'-biphenyl terdi-forced norevonic acid, 4, 4'-biphenylenomethane dicanolevonic acid, 4, 4,' -biphenylenosnorehon di canenolevonic acid, 4,4'-biphenylenopropylene didicarboxylic acid, 1,2-bis (phenoxy) ethane-4,4'-dicarboxylic acid, 2,5-anthracenedicarboxylic acid, 2,6-anthracene dicarboxylic acid 4, 4 7 -p-phenylene dicarboxylic acid, 2,5-pyridindicarboxylic acid,] 3-hydroxyethoxybenzoic acid, p-oxybenzoic acid, and the like. Two or more of these difunctional aromatic carboxylic acids may be used in combination. In addition, if the amount is small, these difunctional aromatic strength rubonic acid and bifunctional aliphatic carboxylic acids such as adipic acid, azelaic acid, sebacic acid and dodecanedioic acid, and difunctional hexanedicarboxylic acid One or more alicyclic carboxylic acids, 5-sodium sulfoisophthalic acid and the like can be used in combination.
また、 ジオール化合物として、 エチレングリコールにほかに、 プロピ レングリ コーノレ、 ブチレングリ コーノレ、 へキシレングリ コーノレ、 ネオぺ ンチノレグリコール、 2—メチル 1 , 3—プロパンジオール、 ジエチレン グリコール、 トリメチレングリコールの如き他の脂肪族ジオール、 1 , 4—シク口へキサンジメタノールの如き脂環族'ジオール等及びそれらの 混合物等を共重合していてもよい。 また、 少量であればこれらのジォー ル化合物と共に両末端又は片末端が未封鎖のポリォキシアルキレングリ コールを共重合することができる。 In addition to ethylene glycol, diol compounds include propylene glycol, butylene glycol, hexylene glycol, neopentylene glycol, 2-methyl 1,3-propanediol, diethylene glycol, and trimethylene glycol. Aliphatic diols, alicyclic diols such as 1,4-hexane hexanemethanol, and mixtures thereof may be copolymerized. Also, if the amount is small, Polyoxyalkylene glycols having both ends or one end unblocked can be copolymerized together with the copper compound.
さらに、 ポリエステルが実質的に線状である範囲で、 トリメ リ ッ ト酸、 ピロメ リ ッ ト酸の如きポリカルボン酸、 グリセリン、 ト リメチロールプ 口パン、 ペンタエリスリ トールの如きポリオールを使用することもでき る。  In addition, a polycarboxylic acid such as trimellitic acid or pyromellitic acid, or a polyol such as glycerin, trimethylol bread, or pentaerythritol can be used as long as the polyester is substantially linear. .
好ましい P E T系芳香族ポリエステルの具体例としては、 ポリェチレ ンテレフタレー ト （P E T ) のホモポリマ一、 あるいは、 ポリエチレン イ ソフタ レー ト · テレフタ レー ト、 ポリエチレン ' ブチレンテレフタ レート、 ポリエチレンテレフタレー ト . デカンジカルボキシレート等の ような共重合ポリエステルをあげることができる。 なかでも、 機械的性 質、 製糸性等のバランスのとれたポリエチレンテレフタレートのホモポ リマーが特に好ましい。 '  Specific examples of preferred PET-based aromatic polyesters include polyethylene terephthalate (PET) homopolymers, polyethylene isophthalate terephthalate, polyethylene butylene terephthalate, polyethylene terephthalate decane dicarboxylate. Copolyesters such as Of these, polyethylene terephthalate homopolymer having a good balance of mechanical properties and yarn-forming properties is particularly preferable. '
かかる P E T系芳香族ポリエステルは任意の方法によって合成される。 例えば、 ポリエチレンテレフタレー トついて説明すれば、 テレフタル酸 とエチレングリコールとを直接エステル化反応させる力 、 テレフタル酸 ジメチルの如きテレフタノレ酸の低級アルキルエステルとエチレングリ コールとをエステル交換反応させるか又はテレブタル酸とエチレンォキ サイ ドとを反応させるかして、 テレフタル酸のグリコールエステル及び Z又はその低重合体を生成させる第 1段反応、 次いでその生成物を減圧 下加熱して所望の重合度になるまで重縮合反応させる第 2段の反応とに よって容易に製造される。  Such PET aromatic polyester is synthesized by an arbitrary method. For example, when describing polyethylene terephthalate, it is possible to perform esterification reaction directly between terephthalic acid and ethylene glycol, transesterification reaction between lower alkyl ester of terephthalenolic acid such as dimethyl terephthalate and ethylene glycol or terephthalic acid First reaction to produce terephthalic acid glycol ester and Z or its low polymer by reacting with ethylene oxide, and then the product is heated under reduced pressure until the desired degree of polymerization is reached. It is easily produced by the second stage reaction to be condensed.
かかる P E T系芳香族ポリエステルには、 必要に応じて、 安定剤、 艷 消し剤、 着色剤、 その他の添加剤を含んでいても差し支えない。  Such PET aromatic polyesters may contain stabilizers, matting agents, coloring agents, and other additives as necessary.
本発明の仮撚加工糸を形成する制電性芳香族ポリエステル組成物は、 上記の如き P E T系芳香族ポリエステルに特定の制電剤を 2種配合した ものである。 本発明で第 1の制電剤として配合されるポリオキシアルキ レン系ポリエーテル （ a ) は、 P E T系芳香族ポリエステルに実質的に 不溶性のものであれば、 単一のォキシアルキレン単位からなるポリォキ シアルキレングリ コールであっても、 2種以上のォキシアルキレン単位 からなる共重合ポリオキシアルキレンダリコールであってもよく、 また、 下記一般式 （ I ) で表わされるポリオキシエチレン系ポリエーテルで あってもよレヽ。 The antistatic aromatic polyester composition forming the false twisted yarn of the present invention is a mixture of two specific antistatic agents in the PET aromatic polyester as described above. The polyoxyalkylene polyether (a) blended as the first antistatic agent in the present invention is composed of a single oxyalkylene unit as long as it is substantially insoluble in the PET aromatic polyester. Polyki It may be a sialkylene glycol or a copolymerized polyoxyalkylene darlycol composed of two or more oxyalkylene units, and may be a polyoxyethylene-based polyether represented by the following general formula (I): Even if there is.
Z + (CH2 C H2 0> n (R1 O) m一 R2 】 k ... ( I ) 上記式 （ I ) 中、 Zは 1〜6個の活性水素原子を有する有機化合物残基、 R 1は炭素原子数 6以上のアルキレン基又は置換アルキレン基、 R2は 水素原子、 炭素原子数 1〜40の一価の炭化水素基、 炭素原子数 2〜4 0の一価のヒ ドロキシ炭化水素又は炭素原子数 2〜40の一価のァシル 基、 kは 1〜6の整数、 nは n≥ 7 OZkを満足する整数、 mは 1以上 の整数を示す。 Z + (CH 2 CH 2 0> n (R 1 O) m 1 R 2 ] k ... (I) In the above formula (I), Z is an organic compound residue having 1 to 6 active hydrogen atoms R 1 is an alkylene group or substituted alkylene group having 6 or more carbon atoms, R 2 is a hydrogen atom, a monovalent hydrocarbon group having 1 to 40 carbon atoms, or a monovalent hydroxyl group having 2 to 40 carbon atoms. A hydrocarbon or a monovalent acyl group having 2 to 40 carbon atoms, k is an integer of 1 to 6, n is an integer satisfying n≥7 OZk, and m is an integer of 1 or more.
かかるポリオキシアルキレン系ポリエーテルの具体例としては、 分子 量が 4000以上のポリオキシエチレングリコール、 分子量が 1000 以上のポリオキシプロピレンダリコール、 ポリオキシテトラメチレング リコール、 分子量が 2000以上のエチレンォキサイ ド、 プロピレンォ キサイ ド共重合体、 分子量 4000以上のトリメチロールプロパンェチ レンオキサイ ド付加物、 分子量 3000以上のノニルフヱノールェチレ ンオキサイ ド付加物、 並びに、 これらの末端 QH基に炭素数が 6以上の 置換エチレンォキサイ ドが付加した化合物があげられ、 なかでも、 分子 量が 1 0000〜 1 00000のポリォキシエチレングコール及び分子 量が 5000〜 1 6000のポリォキシエチレングリコールの両末端に 炭素数が 8〜40のアルキル基置換エチレンォキサイ ドが付加した化合 物が好ましレヽ。  Specific examples of such polyoxyalkylene polyethers include polyoxyethylene glycol having a molecular weight of 4000 or more, polyoxypropylene dallicol having a molecular weight of 1000 or more, polyoxytetramethylene glycol, ethylene oxide having a molecular weight of 2000 or more. , Propylene oxide copolymer, trimethylolpropane ethylene oxide adduct having a molecular weight of 4000 or more, nonylphenol ethylene oxide adduct having a molecular weight of 3000 or more, and these terminal QH groups have a carbon number. Examples include compounds to which 6 or more substituted ethylene oxides are added. Among them, both polyoxyethylene glycol having a molecular weight of 10,000 to 100,000 and polyoxyethylene glycol having a molecular weight of 5,000 to 16,000. An alkyl group-substituted ethylene oxide with 8 to 40 carbon atoms added to the end Compound is preferred.
かかるポリオキシアルキレン系ポリエーテル化合物 （a) の配合量は、 上記芳香族ポリエステル 1 00重量部に対して 0. 2〜 30重量部が好 ましく、 さらに好ましくは 2〜6重量部の範囲である。 配合量が 0. 2 重量部より少ないときは親水性が不足して充分な制電性を呈することが できない。 一方、 30重量部より多く配合しても最早制電性の向上効果 は認められず、 かえって得られる組成物の機械的性質を損なうようにな る上、 該ポリエーテル化合物がブリードアウ トしやすくなるため、 溶融 紡糸時にチップのルーダーへの嚙み込み性が低下して、 紡糸安定性も悪 化するようになる。 The blending amount of the polyoxyalkylene polyether compound (a) is preferably 0.2 to 30 parts by weight, more preferably 2 to 6 parts by weight with respect to 100 parts by weight of the aromatic polyester. is there. When the blending amount is less than 0.2 parts by weight, the hydrophilicity is insufficient and sufficient antistatic property cannot be exhibited. On the other hand, even if more than 30 parts by weight is added, the antistatic effect is no longer On the contrary, the mechanical properties of the resulting composition are impaired, and the polyether compound tends to bleed out, so that the penetration of the chip into the ruder during melt spinning is reduced. Spinning stability also deteriorates.
上記の芳香族ポリエステル組成物には、 制電性を特段に向上させるた めに、 さらに第 2の制電剤として有機イオン性化合物 （b ) が配合され る。 かかる有機イオン性化合物と.しては、 マ トリ ックスである P E T系 芳香族ポリエステルと実質的に非反応性でかつ上記ポリオキシアルキレ ン系ポリエーテル化合物 （a ) とも実質的に非反応性の化合物であって、 例えば、 下記一般式 （Π) 、 ( III) で示されるスルホン酸金属塩及び スルホン酸第 4級ホスホニゥム塩を好ましいものとしてあげることがで きる。 これらは単独で使用してもよく、 2種以上併用してもよい。  The aromatic polyester composition is further blended with an organic ionic compound (b) as a second antistatic agent in order to particularly improve antistatic properties. Such an organic ionic compound is substantially non-reactive with the matrix PET-based aromatic polyester and substantially non-reactive with the polyoxyalkylene-based polyether compound (a). For example, sulfonic acid metal salts and sulfonic acid quaternary phosphonium salts represented by the following general formulas (Π) and (III) are preferable. These may be used alone or in combination of two or more.
R S O 3 M …… （Π)  R S O 3 M …… (Π)
上記式 （II) 中、 Rは炭素原子数 3〜3 0のアルキル基又は炭素原子 数 6〜4 0のァリール基、 Mはアルカリ金属又はアルカリ土類金属を示 す。 上記式 （Π) において Rがアルキル基のとき該アルキル基は直鎖状 であっても又は分岐した側鎖を有していてもよい。 Mは N a， K , L i 等のアルカリ金属又は M g , C a等のアルカリ土類金属であり、 なかで も、 L i， N a， Kが好ましい。 かかるスルホン酸金属塩は 1種のみを 単独で用いても 2種以上を混合して使用してもよい。 - 好ましいスルホン酸金属塩の具体例としては、 ステアリルスルホン酸 ナトリウム、 ォクチルスルホン酸ナトリ ウム、 ドデシルスルホン酸ナト リ ウム、 炭素原子数の平均が 1 4であるアルキルスルホン酸ナトリ ウム 混合物、 ドデシルベンゼンスルホン酸ナトリウム混合物、 ドデシルペン ゼンスルホン酸ナトリ ウム （ハード型、 ソフト型） 、 ドデシルベンゼン スルホン酸リチウム （ハード型、 ソフト型） 、 ドデシルベンゼンスルホ ン酸マグネシウム （ハード型、 ソフ ト型） 等をあげることができる。  In the above formula (II), R represents an alkyl group having 3 to 30 carbon atoms or an aryl group having 6 to 40 carbon atoms, and M represents an alkali metal or an alkaline earth metal. In the above formula (Π), when R is an alkyl group, the alkyl group may be linear or have a branched side chain. M is an alkali metal such as Na, K and Li, or an alkaline earth metal such as Mg and Ca, and Li, Na and K are preferred. Such sulfonic acid metal salts may be used alone or in combination of two or more. -Specific examples of preferable metal sulfonates include sodium stearyl sulfonate, sodium octyl sulfonate, sodium dodecyl sulfonate, sodium alkyl sulfonate having an average of 14 carbon atoms, and dodecylbenzene sulfonic acid. Examples thereof include sodium mixtures, sodium dodecyl benzene sulfonate (hard type, soft type), lithium dodecyl benzene sulfonate (hard type, soft type), magnesium dodecyl benzene sulfonate (hard type, soft type), and the like.
R S O a P R 1 R 2 R 3 R 4 …… ( III) RSO a PR 1 R 2 R 3 R 4 ...... (III)
上記式 （I II) 中、 R R 2、 R 3及び R 4は、 それぞれ独立に、 炭素 原チ数 3〜 3 0のアルキル基又は炭素原子数 6〜4 0のァリ一ル基を示 す。 これらの I 1、 R 2、 R 3及び R 4はそれぞれ炭素原子数が 5〜 1 5 の低級アルキル基、 フヱニル基又はベンジル基 In the above formula (I II), RR 2 , R 3 and R 4 are each independently carbon An alkyl group having 3 to 30 atoms or an aryl group having 6 to 40 carbon atoms. These I 1 , R 2 , R 3 and R 4 are each a lower alkyl group having 5 to 15 carbon atoms, a phenyl group or a benzyl group.
が好ましい。 また、 これら R R 2、 R 3及び R 4の炭素数の総合計は 6 0以下が好ましい。 Is preferred. The total number of carbon atoms of RR 2 , R 3 and R 4 is preferably 60 or less.
かかるスルホン酸第 4級ホスホニゥム塩の好ましい具体例としては、 アルキル基の炭素原子数の平均が 1 4であるアルキルスルホン酸テトラ ブチルホスホニゥム、 アルキル基の炭素原子数の平均が 1 4であるアル キルスルホン酸テトラフェニルホスホニゥム、 アルキル基の炭素原子数 の平均が 1 4であるアルキルスルホン酸プチルトリフエニルホスホニゥ ム、 ドデシノレ ンゼンスノレホン酸テトラブチレホスホニゥム （ハード型 ソフ ト型） 、 ドデシノレベンゼンスノレホン酸テドラフエ二ノレホスホニゥム (ハード型、 ソフ ト型） 、 ドデシルベンゼンスルホン酸べンジルトリ フエニルホスホニゥム （ハード型、 ソフト型） 等をあげることができる かかるスルホン酸第 4級ホスホニゥム塩は 1種のみを単独で用いても 2 種以上を混合して使用してもよい。  Preferable specific examples of such quaternary phosphonium salts of sulfonic acids include tetrabutylphosphonium alkyl sulfonates having an average number of carbon atoms of the alkyl group of 14, and an average number of carbon atoms of the alkyl group of 14 Tetraphenylphosphonium alkyl sulfonate, alkyl sulfonate triphenyl phosphonium having an average number of carbon atoms of the alkyl group of 14, tetrabutyl phosphonium dodecinorensenorephonate (hard type soft type), Examples include decenorebenzenesolephonic acid tedrafeninophosphophosphonium (hard type, soft type), dodecylbenzenesulfonic acid benzyl triphenylphosphonium (hard type, soft type), etc. Such sulfonic acid quaternary phosphonium salts Can be used alone or in combination of two or more May be used.
かかる有機のイオン性化合物 （b ) としては 1種のみ使用しても 2種 以上併用してもよいが、 その合計配合量は、 芳香族ポリエステル 1 0 0 重量部に対して 0 . 0 5〜： I 0重量部の範囲が好ましく、 0 . 5〜4重 量部がさらに好ましい。 0 . 0 5重量部未満では制電性向上の効果が小 さく、 1 0重量部を超えると繊維の機械的性質を損なうようになる上、 該イオン性化合物もプリー ドアウ トしゃすくなるため、 溶融紡糸時の チップのルーダー嚙み込み性が低下して、 紡糸安定性も悪化するように なる。  As the organic ionic compound (b), only one kind may be used or two or more kinds may be used in combination. The total amount of the organic ionic compound (b) is from 0.05 to 10 parts by weight based on 100 parts by weight of the aromatic polyester. : I is preferably in the range of 0 parts by weight, more preferably 0.5 to 4 parts by weight. If the amount is less than 0.5 parts by weight, the effect of improving the antistatic property is small. If the amount exceeds 10 parts by weight, the mechanical properties of the fiber are impaired, and the ionic compound also becomes squeezed out. Tip rudder penetration during melt spinning is reduced, and spinning stability is also deteriorated.
なお、 上記芳香族ポリエステル組成物には、 本発明の目的を阻.害しな い範囲で、 上に述べた制電剤のほか、 公知の添加剤、 例えば、 顔料、 染 料、 齄消し剤、 防汚剤、 蛍光増白剤、 難燃剤、 安定剤、 紫外線吸収剤、 滑剤等を配合してもよい。  In addition to the antistatic agent described above, the above aromatic polyester composition is not limited to the purpose of the present invention, and other known additives such as pigments, dyes, matting agents, Antifouling agents, fluorescent brighteners, flame retardants, stabilizers, UV absorbers, lubricants, etc. may be added.
く仮撚加工糸の特性〉 本発明の仮撚加工糸において、 捲縮率にして 1 0〜2 0 %、 特に 1 2 〜 1 8 %、 の範囲の捲縮を有する。 捲縮率がこの範囲のものは、 ソフ ト な風合に優れる織編物が得られる。 <Characteristics of false twisted yarn> The false twisted yarn of the present invention has a crimp in the range of 10 to 20%, particularly 12 to 18%. When the crimp ratio is within this range, a woven or knitted fabric with an excellent soft feel can be obtained.
捲縮率が 1 0 %未満の場合には、 織編物とした際の糸条間空隙が多く なり、 染料が入りやすくなり、 染斑を発現されやすくなるので好ましく ない。 一方、 2 0 %を超える場合には、 得られる織編物の表面の空が白 けた色調となり、 かつ、 織編物の風合にフカツキ感を呈するようになる ので好ましくない。  When the crimp rate is less than 10%, the inter-yarn gaps in the knitted or knitted fabric are increased, and the dye is liable to enter, and the dyed spots are easily developed, which is not preferable. On the other hand, if it exceeds 20%, the surface of the resulting knitted or knitted fabric has a white color tone, and the texture of the woven or knitted fabric becomes unnatural.
さらに、 本発明の仮燃加工糸は、 帯電圧半減期が 6 0秒以下、 好まし くは 5〜4 0秒である。 ここで帯電圧半減期とは、 仮撚加工糸を、 筒編 みし、 染色し、 調湿後、 制電性能を J I S - L 1 0 9 4帯電性試験方法 A法 （半減期測定法） により測定される値である。 ここでは、 帯電圧が 初期帯電圧の 1 2に減衰するまでの時間 （秒） を測定し、 その時間 (秒） が短い方が制電性能に優れていると評価される。 帯電圧半減期が 6 0秒を超えるものは、 制電効果が無いか又は非常に小さいため、 本発 明の目的を達し得ない。  Furthermore, the calcined yarn of the present invention has a charged half-life of 60 seconds or less, preferably 5 to 40 seconds. Here, the half-life of the charged voltage means that the false twisted yarn is knitted, dyed, conditioned, and the antistatic performance is measured according to JIS-L 1 0 94 Is a value measured by Here, the time (seconds) until the charged voltage decays to 12 of the initial charged voltage is measured, and the shorter the time (seconds), the better the antistatic performance. Those with a charged half-life of more than 60 seconds do not have the antistatic effect or are very small, and therefore the purpose of the present invention cannot be achieved.
また、 本発明の仮撚加工糸は、 織編物とした場合の織密度を適正な範 囲に調整しやすくするため、 その総繊度は 5 0〜2 0 0 d t e X (デシ テックス） の範囲が適当であり、 好ましくは 5 0〜 1 5 0 d t e xの範 囲である。 総繊度が 5 0 d t e x未満の場合には、 織編地の張り腰が弱 く、 かつ、 充分に密集した織編地を得ることが困難となるので好ましく ない。 一方、 2 0 0 d t e Xを超える場合には、 織編物の目付が大きく なりすぎるため織編用としては好ましくない。 なお、 単繊維の繊度は 1 . 0〜5 . 0 d t e Xが好ましく、 仮撚加工糸の構成フィラメント数は 2 4〜 9 6本が好ましい。  Further, the false twisted yarn of the present invention has a total fineness in the range of 50 to 200 dte X (decitex) in order to make it easy to adjust the weaving density in a woven or knitted fabric within an appropriate range. Suitable, preferably in the range of 50 to 1550 dtex. When the total fineness is less than 50 dtex, it is not preferable because the tension of the knitted fabric is weak and it is difficult to obtain a sufficiently dense woven fabric. On the other hand, if it exceeds 200 dte X, the basis weight of the woven or knitted fabric becomes too large, which is not preferable for knitting. The fineness of the single fiber is preferably 1.0 to 5.0 dte X, and the number of constituent filaments of the false twisted yarn is preferably 24 to 96.
<仮撚加工糸の製造法 >  <Manufacturing method of false twisted yarn>
以上に説明した本発明の制電性ポリエステル仮撚加工糸は、 例えば、 以下の方法により良好な生産性にて安定に製造することができる。  The antistatic polyester false twisted yarn of the present invention described above can be stably manufactured with good productivity by, for example, the following method.
すなわち、 本発明の製造方法では、 仮撚加工時に変形、 毛羽を発生さ せることなく、 高速、 安定して仮撚加工するため、 加工用原糸として、 P E T系芳香族ポリエステル中に上記のポリォキシアルキレンダリコー ル （a) とイオン性帯電防止剤 （b) との両方が均一に配合された芳香 族ポリエステル組成物から溶融紡糸された複屈折率 0. 02〜0. 05 の未延伸マルチフィラメントを用い、 これを下記 （ィ） 〜 （口） を同時 に満足する条件で延伸同時仮撚加工する。 That is, in the production method of the present invention, deformation and fluff are generated during false twisting. As a raw yarn for processing, the above polyoxyalkylene diol (a) and ionic antistatic agent (b) Using an unstretched multifilament with a birefringence of 0.02 to 0.05, melt-spun from an aromatic polyester composition in which both are uniformly blended, satisfying the following (i) to (mouth) simultaneously Stretching simultaneous false twisting under the conditions
(ィ） 仮撚具として、 3軸フリクションディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5 mmであり、 かつ、 該ディスクの径が 直上のディスク径の 90〜98%であるものを使用する  (Ii) As a false twister, it is a triaxial friction disk type, and the material of the lowermost disk positioned at the untwisting section is ceramic, and the contact length between the disk and the running yarn is 2.5-0. Use a disk that is 5 mm and whose diameter is 90 to 98% of the diameter of the disk just above.
(口） 仮撚加工瘟度を、 1 70°C〜 300°Cの温度とする  (Mouth) Set false twisting temperature to 1 70 ° C to 300 ° C
(ハ） 仮燃加工時の延伸倍率を 1. 4〜2. 4とする '  (C) The draw ratio at the time of calcining is set to 1.4 to 2.4.
(二） 仮撚数 T (回 Zm) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5000ZY1/2≤T≤ 35000ZY1/2とする。 (2) The number of false twists T (times Zm) shall be 1 5000ZY 1/2 ≤T≤ 35000ZY 1/2 with respect to the fineness (Y dtex) of false twisted yarn.
溶融紡糸段階では、 上記芳香族ポリエステル組成物を紡糸口金から溶 融吐出して冷却固化しフィラメント状となし、 各フイラメントを合糸し、 必要な油剤を付与して、 紡糸速度 2000〜450 OmZ分、 特に 25 00〜3500m/分、 の条件で引き取るのが好ましい。  In the melt spinning stage, the aromatic polyester composition is melted and discharged from a spinneret, cooled and solidified to form a filament, each filament is combined, the necessary oil agent is added, and a spinning speed of 2000 to 450 OmZ min. In particular, it is preferably taken up under the conditions of 2500-3500 m / min.
'その際、 紡糸された未延伸糸 （マルチフィラメント糸） の複屈折率は 0. 02〜0. 05の範囲であることが必要である。 複屈折率が 0. 0 2未満の場合、 仮撚加工時の張力が低く、 サージング発生を起こしやす く、 糸揺れのため熱セッ ト斑が起って染斑不良の原因となり、 さらに仮 撚加工時の延伸倍率アップで弱糸となるため、 好ましくない。 一方、 複 屈折率が 0. 05を超える場合、 原糸毛羽が発生しやすくなり、 工程不 調となるので好ましくない。  'At that time, the birefringence of the spun undrawn yarn (multifilament yarn) needs to be in the range of 0.02 to 0.05. If the birefringence is less than 0.02, the tension during false twisting is low, surging is likely to occur, and thermal set spots occur due to yarn swinging, resulting in defective stains. This is not preferable because the draw ratio is increased during processing and the yarn becomes weak. On the other hand, when the birefringence index exceeds 0.05, it is not preferable because raw yarn fluff is likely to occur and the process becomes unstable.
本発明方法では、 紡糸及びノ又は延伸仮撚加工の工程で空気撹乱流に より糸条の交絡処理を行うことが好ましい。 かかる空気交絡処理は延伸 仮撚加工と別の工程で行ってもよいが、 図 1に示すように、 延伸仮撚加 ェ装置にインターレースノズル （4) を設置して延伸仮撚加工の直前に 施すのが好ましい。 このことにより毛羽発生を抑制し、 加工糸の取り扱 い性に好影響をもたらすことができる。 さらに、 別のインタ一レースノ ズル （図示せず） により、 仮撚下での熱セッ ト後の糸条に空気交絡を施 すことで完全に混繊交絡を行わせ、 糸長方向に均一化させる。 この効果 から、 糸長方向に均一化した制電性能を有し、 かつ高級感を発現させる 加工糸とすることができる。 In the method of the present invention, it is preferable that the yarn is entangled by an air turbulent flow in the steps of spinning and stretching or false false twisting. This air entanglement treatment may be performed in a separate process from the drawing false twisting process, but as shown in Fig. 1, an interlace nozzle (4) is installed in the drawing false twisting device and immediately before the drawing false twisting process. It is preferable to apply. This suppresses the occurrence of fluff and can have a positive effect on the handleability of the processed yarn. Furthermore, by using another interlaced nozzle (not shown), the yarn after heat setting under false twist is air entangled to completely mix and entangle the yarn, making it uniform in the yarn length direction. Let From this effect, it is possible to obtain a processed yarn that has a uniform antistatic performance in the yarn length direction and expresses a high-class feeling.
本発明方法では、 好ましくは延伸仮燃加工直前に交絡処理が施された 未延伸糸は、 例えば図 1に示すような 2段式ヒーターを備えた延伸仮撚 加工機に掛けて、 捲縮を有するポリエステル仮撚加工糸とする。 なお、 図 1の例では、 上述のポリエステル未延伸糸 （ 1) は、 パッケージから 引き出され、 糸ガイ ド （ 2 ) を経て 2対のフィ一ドローラー （ 3、 3 ' ) の間に設置されたインターレースノズル （4) により、 空気交絡 処理が施される。 ここで交絡処理された未延伸糸は、 フィードローラー (3 ' ) と第 1デリべリーローラー （8) との間で所定倍率に延伸され ながら、 回転している 3軸フリクションディスクタイプの仮撚具 （7) により加撚される。 この際、 仮撚具 （7) として、 解撚部に位置する最 下段のディスクの材質がセラミックであり、 該ディスクと走行糸条との 接触長が 2. 5〜0. 5 mmであり、 かつ、 そのディスク径がすぐ上流 に位置するディスク径の 90〜 98 %であるものが使用される。  In the method of the present invention, the undrawn yarn that has been subjected to the entanglement treatment immediately before the drawn calcining process is preferably subjected to crimping by applying it to a drawn false twisting machine equipped with a two-stage heater as shown in FIG. The polyester false twisted yarn is used. In the example of FIG. 1, the above-mentioned polyester undrawn yarn (1) was pulled out of the package and placed between two pairs of feed rollers (3, 3 ') through the yarn guide (2). Air entanglement is performed by the interlace nozzle (4). The unstretched yarn that has been entangled here is a three-axis friction disc type false twist that is rotating while being stretched at a predetermined ratio between the feed roller (3 ') and the first delivery roller (8). It is twisted with the tool (7). At this time, as the false twisting tool (7), the material of the lowermost disk located in the untwisting portion is ceramic, and the contact length between the disk and the running yarn is 2.5 to 0.5 mm. In addition, a disk whose diameter is 90 to 98% of the diameter of the disk located immediately upstream is used.
この間、 糸条は、 第 1段ヒーター （5) によって加撚状態で熱セッ ト された後、 下流側の冷却プレート （6) で冷却され、 仮撚具 （7) を通' 過し解撚される。 さらに、 走行糸条は、 必要に応じ、 第 1デリべリー ローラー （8) と第 2デリべリーローラー （1 0) との間に設置された 第 2段ヒーター （9) で再熱セッ トが施され、 さらに、 空気交絡が施さ - れた後、 卷取ローラー （ 1 1 ) でチーズ状パッケージ （ 1 2) として卷 き取られ、 目的とする制電性ポリエステル仮撚加工糸が製造される。 高速での延伸仮撚加工を考慮し、 第 1段ヒーター （ 5) 及び第 2段 ヒーター （ 9) はともに非接触式とするのが好ましい。 特に、 第 2段 ヒーター （9) は SW— OF F省略する （使用しない） ことが多いが、 加工糸に求められる風合等、 必要に応じて、 使用してもかまわない。 本発明方法においては、 既に述べたように、 仮撚具 （7) として、 図 2に示すような 3軸フリクションディスクタイプのもので、 その解撚部 に位置する最下段のディスクはセラミック製のものとし、 かつ、 該ディ スク径がすぐ上流のディスク径ょりも 90〜9 8%であるものを用い、 該ディスクと走行糸条との接触長を 2. 5〜0. 5 mmとすることが肝 要である。 すなわち、 図 2に例示する仮撚具 （ 7) は、 3本の回転軸 ( 1 5) にそれぞれ 2個ずっ仮撚ディスク （1 3) が取り付けられた 3 軸フリクションディスクタイプのものであって、 各回転軸 （1 5) は駆 動ベルト （ 1 7) で駆動されるタイミングベルト （1 6) により所定速 度で回転し、 それぞれの仮撚ディスク （1 3) を回転させるようにして いる。 本発明方法では、 仮撚ディスク （1 3) のうち少なく とも解撚部 に位置する最下段のディスク （図 2の例では左側の回転軸に取り付けた 下方のディスク） は、 セラミック製とし、 かつ、 そのディスクの直径が すぐ上流側のディスク （図 2の例では中央の回転軸に取り付けた下方の ディスク） の直径の 90〜 98 %であるものを使用する。 そして、 該セ ラミック製ディスクと走行糸条との接触長ば 2. 5〜0. 5 mmとする。 このように仮撚具 （7) における最下段のディスク材質がセラミック であることがディスク摩耗の上で、 好ましい。 また、 該ディスクと走行 糸条との接触長を 2. 5〜0. 5mmとするのは、 加燃が終了して、 捲 縮状態の糸条が最後の解撚部に入った際、 該ディスクと糸条との接触面 積を極力少なく して、 抵抗を少なくすることが、 毛羽を著しく減少する 上で有効であるという本発明者らの知見に基づくものである。 同様に、 最下段のディスクの径を直上のディスク径ょりも 90〜98%の径とす ることが、 糸導を次のステップ （すなわち、 熱セッ ト） に移動させる際 の抵抗が少なく糸条がスムーズに移動できる適正ゾーンであることを見 出したことによるものである。 During this time, the yarn is heat set in a twisted state by the first stage heater (5), then cooled by the cooling plate (6) on the downstream side, passed through the false twister (7) and untwisted. Is done. In addition, the traveling yarn is reheated by a second stage heater (9) installed between the first delivery roller (8) and the second delivery roller (10), if necessary. And then air-entangled-and then wound with a take-off roller (1 1) as a cheese-like package (1 2) to produce the desired antistatic polyester false twisted yarn. The In consideration of the drawing false twisting at high speed, it is preferable that both the first stage heater (5) and the second stage heater (9) are non-contact type. In particular, the second stage heater (9) often omits SW-OF F (not used). It may be used as required for the texture required for the processed yarn. In the method of the present invention, as already described, the false twisting tool (7) is a triaxial friction disk type as shown in FIG. 2, and the lowermost disk located at the untwisting portion is made of ceramic. And the disk diameter immediately upstream of the disk diameter is 90 to 98%, and the contact length between the disk and the running yarn is 2.5 to 0.5 mm. It is important. That is, the false twisting tool (7) illustrated in Fig. 2 is of the triaxial friction disk type in which two false twisted disks (1 3) are attached to three rotating shafts (15), respectively. Each rotating shaft (15) is rotated at a predetermined speed by a timing belt (16) driven by a driving belt (17) to rotate each false twist disk (13). Yes. In the method of the present invention, the lowest disk (the lower disk attached to the left rotating shaft in the example of FIG. 2) located at least in the untwisting portion of the false twist disk (1 3) is made of ceramic, and Use a disk whose diameter is 90 to 98% of the diameter of the disk immediately upstream (the lower disk attached to the central rotating shaft in the example in Fig. 2). The contact length between the ceramic disk and the running yarn is 2.5 to 0.5 mm. Thus, it is preferable in terms of disk wear that the lowermost disk material of the false twisting tool (7) is ceramic. In addition, the contact length between the disk and the running yarn is set to 2.5 to 0.5 mm when the completion of combustion and the crimped yarn enters the final untwisted portion. This is based on the knowledge of the present inventors that reducing the contact area between the disk and the yarn as much as possible and reducing the resistance is effective in significantly reducing the fluff. Similarly, if the diameter of the bottom disk is 90-98%, the resistance when moving the yarn guide to the next step (ie, heat set) is reduced. This is due to the fact that the yarn is in an appropriate zone where it can move smoothly.
本発明方法では未延伸糸条を構成するフィラメン卜には、 上記 2種の 制電剤が含まれるため、 元来、 延伸仮撚加工による毛羽を発生し易いも のであるが、 本発明方法によれば、 上述の条件を採用することで、 延伸 仮撚加工時の加工毛羽の発生を著しく低減することが可能となる。 しか るに、 この範囲を外れると、 加工毛羽が発生して、 製織性、 解舒性、 織 物製品での品質に悪影響を及ぼす要因となる。 本発明者らが、 各種の検 討を重ねた結果、 走行糸条と最下段ディスクとの接触長を 2 . 5〜0 . 5 m mとすることが、 本発明方法の延伸仮撚加工においては、 加工毛羽 を著しく減少する上で特に効果的であることが判明した。 _ 本発明における仮撚加工温度は 1 7 0〜3 0 0 °Cとすることが必要で ある。 この温度が 1 .7 0 °C未満では、 捲縮性能が低く、 風合いが硬く、 3 0 0 °Cを超える場合は、 極端に、 加工糸の扁平が進み、 加工毛羽が発 生するようになるので、 好ましくない。 仮撚加工機として非接触式の ヒーターを備えた装置を使用する場合は、 第 1段非接触式ヒーターの設 定温度を 1 7 0〜3 0 0 °Cとして熱処理するのが好ましい。 なお、 ここ でいう適正ヒーター温度は、 市販の仮撚加工機 （帝人製機製 2 1 6錘建 H T S— 1 5 V ) によるもので、 非接触式の 1 . 0〜1 . 5 m長のもの 糸速として 8 0 O mノ分〜などの仕様のものを想定しており、 従って、 特殊なヒーターを用いたり、 超高速度で加工する場合などは設定温度を 適宜調整すべきは、 もちろんのことである。 In the method of the present invention, the filament yarn constituting the undrawn yarn contains the above-mentioned two kinds of antistatic agents. However, according to the method of the present invention, it is possible to remarkably reduce the occurrence of processed fluff at the time of drawing and false twisting by adopting the above-mentioned conditions. However, if it is outside this range, processed fluff will be generated, which will adversely affect the weaving, unwinding and quality of the woven product. As a result of various investigations by the inventors, the contact length between the running yarn and the lowermost disk is set to 2.5 to 0.5 mm. It has been found to be particularly effective in significantly reducing processed fluff. _ The false twisting temperature in the present invention is required to be 170 to 300 ° C. If this temperature is less than 1.7 ° C, the crimping performance is low, the texture is hard, and if it exceeds 300 ° C, the processed yarn will become extremely flat and processed fluff will be generated. Therefore, it is not preferable. When using a device equipped with a non-contact heater as a false twisting machine, it is preferable to heat-treat the first stage non-contact heater at a set temperature of 1700 to 300 ° C. The appropriate heater temperature here is based on a commercially available false twisting machine (Teijin Seiki 2 16 6 HTS-1 5 V), non-contact type 1.0 to 1.5 m long The yarn speed is assumed to be 80 O m min. ~. Therefore, when using a special heater or processing at ultra high speed, the set temperature should be adjusted appropriately. That is.
なお、 第 1段ヒーターにおける糸条の熱処理時間は、 ヒーターの種類. その長さ及びその温度等により適宜設定すればよいが、 熱処理時間が短 すぎると加工糸の捲縮率が不十分なものとなりやすく、 また、 張力変動 に起因する延伸仮撚断糸、 加工糸の毛羽、 織編物での染斑が発生しやす レ、。 一方、 熱処理時間が長すぎると捲縮率が大きくなりすぎる傾向にあ る。 通常、 非接触式ヒーターの場合は 0 . 0 4〜0 . 1 2秒の範囲、 特 に 0 . 0 6〜0 . 1 0秒の範囲が適当である。  The heat treatment time of the yarn in the first stage heater may be set as appropriate depending on the type of heater, its length, temperature, etc. However, if the heat treatment time is too short, the crimp rate of the processed yarn is insufficient. In addition, stretched false twisted yarn due to fluctuations in tension, fluff of processed yarn, and stains on woven and knitted fabrics are likely to occur. On the other hand, if the heat treatment time is too long, the crimp rate tends to be too large. Usually, in the case of a non-contact type heater, a range of 0.04 to 0.12 seconds, particularly a range of 0.06 to 0.12 seconds is appropriate.
ざらに、 延伸仮撚加工における延伸倍率は、 1 . 4〜2 . 4が最適で あり、 この領域を外れた低倍率ゾーンでは、 サージング発生、 糸揺れに よる熱セッ ト斑が生じ、 高倍率ゾーンでは、 加工糸の扁平化が進み、 さ らに加工毛羽が発生するようになるので、 好ましくない。 本発明方法では、 延伸同時仮撚加工における仮撚数 T (回 Zm) を、 仮撚加工糸の繊度 Y ( d t e x) に応じて （1 5 000〜 3 5 000) ZY1/2、 好ましくは （2 0 000〜3 0 000) ΖΥ1/2の範囲に設 定する。 仮撚数が 1 5 00 0ΖΥ1/2 (回 Zm) 未満の場合には、 微細 で強固な捲縮を付与するのが難しくなり、 布帛にしたときに風合が硬く ペーパーライクになり、 仮撚数が 3 5000ZY1ノ 2 (回ノ m) を超え る場合は、 断糸及び毛羽の発生が多くなるので、 いずれも好ましくない。 本発明方法では、 先ず、 延伸仮撚装置に供給されるポリエステル未延 伸糸に予め空気流によってフィラメント間の交絡を施すことが望まれる。 この空気交絡処理は延伸仮撚加工とは別個に行ってもよいが、 図 1のよ うに延伸仮撚装置にィンターレースノズルを設置して延伸仮撚直前に空 気交絡処理をする方法が好ましい。 交絡の度合いはポリエステル仮撚加 ェ糸で測定した交絡度が 3 0〜80ケノ m、 より好ましくは 50〜 70 ケ となるように施す。 交絡度が 30ケ Zm未満の場合はポリエステ ル未延伸糸を構成するフィラメント同士の混ざりが悪く、 延伸仮撚工程 での解舒 （原糸パッケージからの取り出し） 不良による断糸及び加撚 ' 解撚時の単糸切れ発生が多くなるので好ましくない。 交絡度が 80ケ κ mを超える場合はポリエステル仮撚加工糸を構成するフィラメント同士 の絡み合いが強くなり過ぎて、 糸が固まった状態となり好ましくない。 本発明方法では、 直径が 40〜70mm、 より好ましくは直径 45〜 6 2 mm, の仮撚ディスクを使用して加燃 ·解撚を行うのがよい。 該仮 撚ディスクは、 例えば図 2に示すように各 2枚のディスクを 3軸に配置 した仮撚ュニッ トに組み立てて使用する。 仮撚ディスクの直径が 40 m m未満では、 上記ポリエステル組成物からなる糸条への仮燃デイスクに よる摩擦損傷が急激に増加し、 断糸及び毛羽の発生が多くなる。 仮撚 ディスクの直径が 7 Ommを超える場合は、 仮撚ディスクによる燃掛け 力が低下し、 微細で強固な捲縮が得られない場合が多く好ましくない。 また、 加撚張力が上昇し毛羽の発生が多くなる。 さらに、 走行糸条を仮 撚ディスクに導く作業 （スレツディング） が極めてむずかしくなる。 仮撚ディスクを通過する糸条の走行角 （ディスク回転軸とディスクの 外周上を接触走行する糸条とがなす角度） は、 3 0〜4 8度、 特に 3 2 〜4 5度の範囲とすることが好ましい。 かくすることにより、 ディスク による撚り掛け力を低下させることなく、 糸送り作用を高め、 安定した 状態で加撚 ·解燃を施すことができる。 この際、 既に述べたとおり、 最 下段のディスクと走行糸条との接触長を 2 . 5〜0 . 5 m mとすること 力 加工毛羽を著しく減少する上で効果的である。 On the other hand, the draw ratio in draw false twisting is optimally from 1.4 to 2.4, and in the low-magnification zone outside this region, surging occurs and heat set spots due to yarn swinging occur, resulting in high magnification. In the zone, the processed yarn is flattened, and further processed fluff is generated, which is not preferable. In the method of the present invention, the false twist number T (times Zm) in the simultaneous simultaneous false twisting is set according to the fineness Y (dtex) of the false twisted yarn (1 5 000 to 3 5 000) ZY 1/2 , preferably (2 0 000 to 3 0 000) す る Set in the range of 1/2 . If the number of false twists is less than 1 500 00ΖΥ1 / 2 (times Zm), it will be difficult to impart a fine and strong crimp, and the texture will become hard and paper-like when made into a fabric. If the number of twists exceeds 3 5000 ZY 1 2 (turns m), the occurrence of yarn breakage and fluff increases, and both are not preferred. In the method of the present invention, first, it is desired that the polyester undrawn yarn supplied to the drawing false twisting device is entangled between filaments in advance by an air flow. This air entanglement treatment may be performed separately from the drawing false twisting process. However, as shown in Fig. 1, there is a method in which an interlace nozzle is installed in the drawing false twisting device and the air entanglement treatment is performed immediately before the drawing false twisting. preferable. The degree of entanglement is such that the degree of entanglement measured with a polyester false twisted yarn is 30 to 80 kenom, more preferably 50 to 70. When the degree of entanglement is less than 30m Zm, the filaments that make up the polyester undrawn yarn are poorly mixed and unraveled in the draw false twisting process (taken out of the original yarn package). Since the occurrence of single yarn breakage during twisting is increased, it is not preferable. When the degree of entanglement exceeds 80 κm, the entanglement between the filaments constituting the polyester false twisted yarn becomes too strong, and the yarn becomes hardened, which is not preferable. In the method of the present invention, it is preferable to perform the firing and untwisting using a false twisted disk having a diameter of 40 to 70 mm, more preferably 45 to 62 mm. For example, as shown in FIG. 2, the false twist disk is assembled into a false twist unit in which two disks are arranged on three axes. When the diameter of the false twist disk is less than 40 mm, the frictional damage due to the temporary burning disk on the yarn composed of the polyester composition increases rapidly, and the occurrence of yarn breakage and fluff increases. When the diameter of the false twisted disc exceeds 7 Omm, the burning power by the false twisted disc is reduced, and fine and strong crimps are often not obtained. In addition, twisting tension increases and fluffing increases. Furthermore, the operation of threading the running yarn to the false twisting disk (threading) becomes extremely difficult. The running angle of the yarn passing through the false twisted disc (the angle formed by the disc rotating shaft and the yarn running in contact with the outer circumference of the disc) is in the range of 30 to 48 degrees, especially 3 to 45 degrees. It is preferable to do. In this way, the yarn feeding action can be enhanced without lowering the twisting force of the disk, and twisting and deflaming can be performed in a stable state. At this time, as already described, the contact length between the lowermost disk and the running yarn is set to 2.5 to 0.5 mm. This is effective in significantly reducing the processed fluff.
上記ポリエステル組成物からなる繊維は耐フイブリル性に劣り、 一般 にこのような耐フイブリル性の低い繊維は加工時の毛羽発生は避けられ ないと考えられているが、 本発明方法によれば、 糸条に耐フイブリル性 を有する繊維構造をもたせつつ加工する技術を採用しているため、 仮撚 加工時のセクション変形、 毛羽などを発生させることなく、 高速、 安定 して仮撚加工することができ、 高品質の仮撚加工糸を製造することが出 来る。  Fibers made of the above polyester composition are inferior in fibril resistance, and it is generally considered that such low fibril resistance fibers inevitably generate fuzz during processing. Because the fiber is processed with a fibril-resistant fiber structure in the strip, high-speed and stable false twisting can be performed without causing section deformation or fuzz during false twisting. It is possible to produce high-quality false twisted yarn.
このよ うにして得られる本発明の制電性仮撚加工糸は、 無撚、 無糊で 製織又は製編し、 良好な布帛とすることができる。 この際、 製織製編性 は良好で、 断糸は無くスムーズである。 また、 以上の如き本発明方法に よれば、 制電性、 耐久性に優れたポリエステル仮撚加工糸が、 効率的に 安定して製造する.ことができる。  The antistatic false twisted yarn of the present invention obtained as described above can be woven or knitted without twisting or without glue to obtain a good fabric. At this time, weaving and knitting are good, and there is no broken yarn and it is smooth. Further, according to the method of the present invention as described above, a polyester false twisted yarn excellent in antistatic property and durability can be produced efficiently and stably.
<複合仮撚加工糸の特性 >  <Characteristics of composite false twisted yarn>
次に、 本発明の制電性特殊複合仮撚加工糸は、 既に述べたように上記 制電性ポリエステルフィラメントからなる芯糸の外周を実質的に鞘糸が 覆っている複合構造をもつ複合仮撚加工糸である。  Next, as described above, the antistatic special composite false twisted yarn of the present invention has a composite structure having a composite structure in which the outer periphery of the core yarn made of the antistatic polyester filament is substantially covered with a sheath yarn. It is a twisted yarn.
ここで、 本発明の複合仮撚加工糸を構.成する鞘糸は、 上記の如き芳香 族ポリエステルに、 ポリメチルメタアタリ レート系ポリマー及び 又は ポリスチレン系ポリマーを配合したものからなる。 ここで、 芳香族ポリ エステルとしては、 全繰り返し.単位の 7 5モル％以上、 特に 8 5モル％ 以上がエチレンテレフタレートからなり、 その固有粘度 （オルソクロロ フエノールを溶媒として使用し 3 5 °Cで測定） が 0 . 7以下、 特に 0 . 5 5〜0 . 7 0のものが好ましレ、。 なお、 この芳香族ポリエステルは芯 糸を構成する芳香族ポリエステルと同じ組成であってもよく、 異なる組 成であってもよい。 Here, the sheath yarn constituting the composite false twisted yarn of the present invention is composed of the aromatic polyester as described above blended with a polymethylmethacrylate polymer and / or a polystyrene polymer. Here, the aromatic polyester is composed of ethylene terephthalate containing 75 mol% or more, especially 85 mol% or more of all repeating units, and its intrinsic viscosity (measured at 35 ° C using orthochlorophenol as a solvent). ) Is 0.7 or less, especially 0.7. 5 5 to 0.70 is preferred. The aromatic polyester may have the same composition as the aromatic polyester constituting the core yarn, or may have a different composition.
また、 これらのポリエステルには、 公知の添加剤、 例えば、 顔料、 染 料、 齄消し剤、 防汚剤、 蛍光増白剤、 難燃剤、 安定剤、 紫外線吸収剤、 滑剤を含んでもよい。  In addition, these polyesters may contain known additives such as pigments, dyes, matting agents, antifouling agents, fluorescent whitening agents, flame retardants, stabilizers, ultraviolet absorbers, and lubricants.
鞘糸を構成する芳香族ポリエステルに配合するポリメチルメタァクリ レート系ポリマー、 ポリスチレン系ポリマーは、 ァタクチック構造又は シンジオタクチック構造の非晶性ポリマーであってもよく、 ァイソタク チック構造の結晶性ポリマーであってもよい。 また、 本発明の目的を阻 害しない範囲内で共重合成分を含有するものであっても構わない。  The polymethyl methacrylate polymer and polystyrene polymer blended in the aromatic polyester constituting the sheath yarn may be a non-crystalline polymer of atactic structure or syndiotactic structure, and a crystalline polymer of a isotactic structure. It may be. Further, a copolymer component may be contained within a range not hindering the object of the present invention.
これらポリマーの分子量はあまりに小さいと、 後述する本発明の効果 が低下する傾向にあるので、 その重量平均分子量にして 2 0 0 0以上、 特に 5 0 0 0〜 2 0万の範囲が好ましい。 具体的には、 重量平均分子量 力 8 0 0 0〜2 0万、 メルトインデックス A ( A S T M—D 1 2 3 8準 拠、 温度 2 3 0 °C、 荷重 3 . 8 k g f で測定） が 1 0〜3 0 g Z l O分 であるポリメチルメタクリ レート系共重合体又はアイソタクチックポリ スチレン系重合体、 あるいは、 重量平均分子量が 8 0 0 0〜 2 0万、 メ ルトインデックス B ( A S T M - D 1 2 3 8準拠、 温度 3 0 0 °C、 荷重 2 . 1 6 k g f で測定） が 6〜 5 0 gノ 1 0分のシンジオタクチックポ リスチレン系重合体等を特に好ましい例としてあげることができる。 こ れらの重合体は、 上記ポリエステルに溶融混合'して溶融紡糸する際、 そ の熱安定性と分散状態の安定性に優れているので好ましい。  If the molecular weight of these polymers is too small, the effects of the present invention, which will be described later, tend to be lowered. Specifically, the weight average molecular weight force is 800 to 200,000, and melt index A (according to ASTM-D 1 2 3 8 temperature, temperature 2 30 ° C, load 3.8 kgf) is 10 Polymethyl methacrylate copolymer or isotactic polystyrene polymer having a content of ˜30 g ZlO, or a weight average molecular weight of 800,000 to 200,000, and a melt index B (ASTM- As a particularly preferred example, a syndiotactic polystyrenic polymer or the like conforming to D 1 2 3 8, measured at a temperature of 30 ° C. and a load of 2.16 kgf) of 6 to 50 g and 10 minutes. Can do. These polymers are preferable because they are excellent in thermal stability and dispersion stability when melt-spun to the polyester and melt-spun.
かかるポリメチルメタァクリ レート系ポリマー及び Z又はポリスチレ ン系ポリマーのポリエステルへの混合により、 該繊維の表面に微細な凸 部が形成されるためと推定されるが、 結果的に繊維間摩擦抵抗が低下し て滑りやすくなり、 これにより ソフトで滑らかな表面タツチの風合いの 織編物が実現される一方、 染色時の光沢は未添加と同等のレベルが維持 されるという効果が発現される。 かかる効果を発現させるため上記ポリ マーの含有量は、 ポリエステル重量を基準として、 合計で 0 . 5〜3 . 0重量％する必要があり、 1 . 0〜2 . 0重量％とするのが好ましい。 含有量が 0 . 5重量％未満の場合には、 繊 ·繊維間の摩擦低下が不十 分で、 得られる布帛の風合いが硬いものとなるので好ましくない。 一方、 上記含有量 3 . 0重量％を超える場合には、 かかるポリマー添 加の効果が飽和するのみならず、 繊維の紡糸、 延伸工程での安定性が低 下して、 断糸が多ぐなるので好ましくない。 なお、 ポリメチルメタァク リ レート系ポリマーとポリスチレン系ポリマーとを併用することも可能 であるが、 この場合は両者の合計の重量％が上記含有量の範囲内になる ようにする。 It is estimated that fine projections are formed on the surface of the fiber by mixing the polymethyl methacrylate polymer and Z or polystyrene polymer with polyester, but as a result, the inter-fiber friction resistance is estimated. As a result, a woven or knitted fabric with a soft and smooth surface texture is realized, while the gloss at the time of dyeing is maintained at the same level as when it is not added. In order to exhibit such an effect, the above poly The content of the mer needs to be 0.5 to 3.0% by weight in total based on the weight of the polyester, and is preferably 1.0 to 2.0% by weight. When the content is less than 0.5% by weight, the friction between the fibers and the fibers is not sufficiently lowered, and the texture of the resulting fabric becomes hard. On the other hand, when the content exceeds 3.0% by weight, not only the effect of adding the polymer is saturated, but also the stability in the spinning and drawing process of the fiber is lowered, resulting in a large number of yarn breaks. This is not preferable. It is also possible to use a polymethyl methacrylate polymer and a polystyrene polymer in combination, but in this case, the total weight% of both is within the above content range.
本発明において、 鞘糸をこのような組成にしたことで、 上述のように 複合糸表面の感触などを改善する効果もあるが、 最も重要なのは、 鞘糸 にポリメチルメタァクリ レート系ポリマーやポリスチレン系ポリマーを ブレンドすると、 同紡速の未ブレンド糸よりも伸度が高くなるため、 こ れらを複合仮撚加工した場合、 該ブレンド糸が複合糸の鞘部に配されや すくなり、 逆に複合する相手方の制電糸条が芯部に配されやすくなると いう効果が得られることである。  In the present invention, the composition of the sheath yarn has such an effect that it improves the feel of the surface of the composite yarn as described above, but the most important is that the sheath yarn is a polymethyl methacrylate polymer or the like. When blended with a polystyrene polymer, the elongation becomes higher than that of unblended yarns at the same spinning speed. Therefore, when these are subjected to composite false twisting, the blended yarns are easily placed in the sheath of the composite yarn, On the other hand, it is possible to obtain an effect that the antistatic yarns of the mating counterpart are easily arranged on the core.
なお、 鞘糸を形成する上記ポリエステル組成物にも、 必要に応じ、 本 発明の目的を阻害しない範囲で、 公知の添加剤、 例えば、 顔料、 染料、 艷消し剤、 防汚剤、 蛍光増白剤、 難燃剤、 安定剤、 紫外線吸収剤、 滑剤 等を配合して差し支えない。  It should be noted that the above-mentioned polyester composition forming the sheath yarn may be added to a known additive, for example, a pigment, a dye, a decoloring agent, an antifouling agent, or a fluorescent whitening as long as the purpose of the present invention is not impaired. Additives, flame retardants, stabilizers, UV absorbers, lubricants, etc. may be added.
本発明の複合仮撚加工糸においては、 芯糸の糸条群 Aと鞘糸の糸条群 Bとは、 その糸長に差があることが必要で、 特に糸条群 Bの方が糸条群 Aより 1 0〜 2 0 %、 より好ましくは 1 2〜 1 8 %の範囲で長い方が好 ましい。 その際、 糸条群 Aが主として複合仮撚加工糸の芯部に配され、 糸条群 Bが主として鞘部に配されている芯鞘構造を形成している。 この ような糸長差とすることにより、 糸長方向に安定して制電性のある芯糸 を鞘糸で包み込むことが、 制電性を高く維持することにつながり、 洗濯 耐久性が良い結果となる。 また、 鞘糸のより繊細さが加工糸及びそれか らなる織編物のソフ トな風合いを発現する。 また、 織編物工程での取り 扱い性が向上し、 高品質のものが得られる。 In the composite false twisted yarn of the present invention, it is necessary that the yarn group A of the core yarn and the yarn group B of the sheath yarn have different yarn lengths. It is preferable that the length is 10 to 20%, more preferably 12 to 18% longer than the strip group A. At that time, the yarn group A is mainly arranged in the core portion of the composite false twisted yarn, and the yarn group B is mainly arranged in the sheath portion to form a core-sheath structure. By making such a yarn length difference, wrapping the core yarn that is stable and antistatic in the yarn length direction with the sheath yarn leads to maintaining high antistatic properties, and results in good washing durability. It becomes. Also, the more delicate sheath thread is the processed thread and The soft texture of the woven or knitted fabric is expressed. In addition, handleability in the knitting and knitting process is improved, and high quality products can be obtained.
本発明においては、 上記のような糸条群 Aと糸条群 Bとから構成され る複合仮撚加工糸の捲縮率は 2〜 8 %の範囲、 特に 3〜 7 %の範囲の捲 縮を有していることが必要である。  In the present invention, the crimp rate of the composite false twisted yarn composed of the yarn group A and the yarn group B as described above is in the range of 2 to 8%, particularly in the range of 3 to 7%. It is necessary to have
捲縮率をこの範囲とすることにより、 ソフトな風合に優れる織編物が得 られる。 これに対し、 捲縮率が 2 . · 0 %未満の場合には、 織編物とした 際の糸条間空隙が多くなりすぎ、 染色時に必要以上に染料が入りやすく なり、 染斑を発現しやすくなるので好ましくない。 一方、 8 . 0 %を超 える場合には、'得られる織編物の表面の杏が白けた色調となり、 かつ、 フカツキ感を呈するようになるので好ましくない。 By setting the crimp rate within this range, a woven or knitted fabric having a soft texture can be obtained. On the other hand, when the crimp rate is less than 2.0%, there are too many gaps between yarns in the case of a woven or knitted fabric, and it becomes easier for dyes to enter more than necessary at the time of dyeing. Since it becomes easy, it is not preferable. On the other hand, if it exceeds 8.0%, the apricot on the surface of the resulting knitted or knitted fabric has a whitish tone and a feeling of flickering is not preferable.
なお、 複合仮撚加工糸を構成する糸条群 A又は糸条群 Bから、 夫々の 糸条を取出して夫々単独で測定した時の捲縮率は、 お互いに同じであつ ても相異なっていてもよいが、 糸条群 Bの方が捲縮率が大きい場合、 該 糸条 Bが主として複合仮撚加工糸の鞘部に配されやすくなるので、 織編 物にしたとき、 ソフ トで滑らかな表面タツチの風合いが向上するので好 ましい。  It should be noted that the crimp ratios when the respective yarns are taken out from the yarn group A or the yarn group B constituting the composite false twisted yarn and measured individually are the same even if they are the same. However, when the crimping rate of the yarn group B is larger, the yarn B tends to be arranged mainly in the sheath portion of the composite false twisted yarn. This is preferable because the texture of the smooth surface touch is improved.
本発明の複合仮撚加工糸は、 さらに、 帯電摩擦圧が 2 0 0 0 V以下、 好ましくは 5 0 0 V〜 1 5 0 0 Vの範囲内にある。 帯電摩擦圧は、 複合 仮撚加工糸を筒編みし染色し、 調湿後、 制電性能を J I S L 1 0 9 4 帯電性試験方法 B法 （摩擦帯電圧測定法） により測定される値であって、 摩擦帯電圧が、 約 2 0 0 0 V以下 （好ましくは 1 5 0 0 V以下） であれ ば、 制電効果がありと評価できる。  The composite false twisted yarn of the present invention further has a charging friction pressure of 20:00 V or less, preferably in the range of 50000 V to 1500 V. Charge friction pressure is a value measured by JISL 1 0 9 4 Chargeability test method B (friction band voltage measurement method) after anti-humidity adjustment and dyeing of composite false twisted yarn. Thus, if the frictional voltage is about 2200 V or less (preferably 1500 V or less), it can be evaluated that there is an antistatic effect.
本発明の複合仮撚加工糸は、 織編物とした場合の織密度を適正な範囲 に調整しやすくするため、 その総繊度は 1 0 0〜 3 0 0 d t e X (デシ テックス） 、 好ましくは 1 3 0〜2 7 0 d t e xの範囲とするのが適当 である。 総繊度が 1 0 0 d t e X未満の場合には、 張り腰が弱く、 かつ、 充分に密集した織編地を得ることが困難となるので好ましくない。 一、 3 0 0 d t e Xを越える場合には、 織編物の目付が大きくなりすぎるた め織編用としては好ましくなくなる。 なお、 糸条群 Aと糸条群 Bとの総 繊度比は、 前者 Z後者で 40 60〜 60 40、 特に 4 5 / 5 5〜 5 5Z45の範囲が、 より微細さ発現させる上で好ましい。 The composite false twisted yarn of the present invention has a total fineness of 100 to 300 dte X (decitex), preferably 1 in order to make it easy to adjust the woven density in the case of a woven or knitted fabric. A range of 3 0 to 2 7 0 dtex is appropriate. When the total fineness is less than 100 dte X, it is not preferable because it is difficult to obtain a sufficiently dense woven or knitted fabric. 1. If it exceeds 3 0 0 dte X, the basis weight of the woven or knitted fabric will be too large. It is not preferable for a woven or knitted fabric. In addition, the total fineness ratio of the yarn group A and the yarn group B is preferably 40 60 to 60 40 for the former Z and the range of 45/55 to 55 Z45, in particular, for achieving finer expression.
一方、 糸条群 Aと糸条群 Bの単繊維繊度は、 同一であっても異なって いてもよいが、 その平均単繊維繊度は 1. 0〜5. O d t e x、 好まし くは 1. 2〜4. 0 d t e Xの範囲であることが必要である。 平均の単 繊維繊度が 1. 0 d t e x未満の場合には、 糸条群 Aと糸条群 Bとの混 ざり合いが進みすぎるため、 得られる織編物表面が発現し難くなるので 好ましくない。 一方、 平均単繊維繊度が 5. O d t e xを超える場合に は、 得られる織編物の風令いが粗硬化し、 表面が不快な触感を与えるよ うになるので好ましくない-。 なお、 芯糸と鞘糸 Bの単繊維繊度が異なる 場合には、 複合仮撚加工糸のより芯部に配されやすい糸条群の方が、 そ の単繊維繊度は大きい方が好ましい。 しかし、 あまりに大きくなりすぎ ると風合いが粗硬なものとなりやすいので 5. 5 d t e x以下とするの が好ましい。  On the other hand, the single fiber fineness of the yarn group A and the yarn group B may be the same or different, but the average single fiber fineness is 1.0 to 5. O dtex, preferably 1. It must be in the range of 2 to 4.0 dte X. When the average single fiber fineness is less than 1.0 d t e x, the mixing of the yarn group A and the yarn group B progresses too much, so that the surface of the resulting woven or knitted fabric becomes difficult to develop, which is not preferable. On the other hand, when the average single fiber fineness exceeds 5. O d t e x, the wind of the resulting knitted or knitted fabric is coarsely cured, and the surface becomes unpleasant. When the single fiber fineness of the core yarn and the sheath yarn B is different, it is preferable that the single yarn fineness of the yarn group that is more easily arranged in the core portion of the composite false twisted yarn is greater. However, if it becomes too large, the texture tends to be rough, so it is preferable to set it to 5.5 dtex or less.
<複合仮撚加工糸の製造法.〉  <Production method of composite false twisted yarn>
以上に説明した本発明の織編物用ポリエステル複合仮撚加工糸は、 例 えば以下の方法により製造することができる。 すなわち、 ポリエステル マルチフィラメントを延伸仮撚加工するに際して、 加工用のポリエステ ル原糸として、 上記のポリオキシアルキレングリコール （a) とイオン 性帯電防止剤 （b) とが配合されているポリエステル未延伸糸 （Α' ) と上記のポリメチルメタアタリ レート系ポリマー及び Ζ又はポリスチレ ン系ポリマーをブレンドしたポリエステル未延伸糸 （Β' ) とを用い、 これらを合糸して、 下記 （ 1 ) 〜 （4) を同時に満足する条件で延伸同 時仮撚加工することで製造される。  The polyester composite false twisted yarn for woven or knitted fabric of the present invention described above can be produced, for example, by the following method. That is, when a polyester multifilament is drawn by false twisting, a polyester undrawn yarn containing the polyoxyalkylene glycol (a) and the ionic antistatic agent (b) as a polyester yarn for processing (Α ') and the above-mentioned polymethylmethacrylate polymer and polyester undrawn yarn (Β') blended with cocoon or polystyrene polymer, these are combined, and the following (1) to (4 ) At the same time satisfying the above conditions.
( 1 ) 仮撚直前に空気交絡処理を施し、 30個以上 Zmの交絡を付与す る  (1) Apply air entanglement immediately before false twisting and give 30 or more Zm entanglement
(2) 仮撚具と'して、 3軸フリ クショ ンディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5 mmであり、 かつ、 該ディスクの径が 直上のディスク径の 90〜98%であるものを使用する (2) As a false twister, it is a triaxial friction disc type, and the material of the lowermost disc located at the untwisting section is ceramic, and it travels with the disc. Use a yarn whose contact length with the yarn is 2.5 to 0.5 mm and whose diameter is 90 to 98% of the diameter of the disk just above.
(3) 仮撚加工温度を、 1 70で〜 300°Cの温度とする  (3) Set the false twisting temperature at 1 70 to ~ 300 ° C
(4) 仮撚数 T (回 Zm) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5000ZY1/2≤T≤ 35000/Y1/2とする。 (4) The number of false twists T (times Zm) shall be 1 5000ZY 1/2 ≤ T≤ 35000 / Y 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
ここで、 芯糸となる低伸度側未延伸糸 （Α' ) と鞘糸となる高伸度側 未延伸糸 （Β' ) との間に伸度差があり、 未延伸糸 B' の方が 70〜 1 50%、 特に 90〜1 30%の範囲で大きい場合、 得られる複合仮撚カ卩 ェ糸.は、 その鞘部に主として糸条群 Βが配されるようになるため、 得ら れる織編物の風合いがより ソフトでしなやかものとなるので好ましい。 なお、 伸度差が 1 5.0%を超える場合には、 風合いとしてフカツキ感を 呈し'、 かつ、 延伸仮撚加工工程で張力変動が発生しやすくなるため、 そ れに起因する断糸頻度が増加して安定に加工することができなくなる。 また、 低伸度側未延伸糸 （Α' ) と高伸度側未延伸糸 （Β' ) は、 夫々別々に紡糸して巻き取った後、 これらを合糸して延伸仮撚加工に供 しても、 異なる紡糸口金から夫々のポリマーを同時に溶融吐出し、 夫々 の糸条群を冷却後に合糸して巻き取り、 延伸仮撚加工に供してもよいが、 後者の方法において、 紡糸速度 2500〜400 OmZ分、 特に 300 0〜 3 500 mZ分の範囲で溶融紡糸すると、 ポリメチルメタアタ リ レート系ポリマー及びノ又はポリスチレン系ポリマ一を 0. 5〜3. 0 重量％含有するポリエステルは、 ポリエステルを同速度で溶融紡糸して 得られる未延伸糸よりも伸度が 70〜 1 50%、 特に 90〜1 30%大 きいものが容易にかつ効率よく得られるので好ましい。  Here, there is a difference in elongation between the low-stretch side undrawn yarn (Α ') as the core yarn and the high-stretch side undrawn yarn (Β') as the sheath yarn, and the undrawn yarn B ' If it is larger in the range of 70 to 1 50%, especially 90 to 1 30%, the resulting composite false twisted kale. The texture of the resulting woven or knitted fabric is preferable because it is softer and more flexible. When the difference in elongation exceeds 15.0%, it feels fluffy as a texture ', and tension fluctuations are likely to occur in the drawing false twisting process, resulting in an increase in the frequency of yarn breakage due to it. Therefore, it becomes impossible to process stably. Also, the low-stretch side undrawn yarn (') and the high-stretch side undrawn yarn (Β') are spun and wound separately, and then combined and used for drawn false twisting. However, the respective polymers may be melted and discharged simultaneously from different spinnerets, and each group of yarns may be combined and wound after being cooled and used for drawing false twisting. In the latter method, the spinning speed is When melt-spun in the range of 2500 to 400 OmZ, particularly 300 0 to 3500 mZ, a polyester containing 0.5 to 3.0% by weight of a polymethylmethacrylate polymer and a polystyrene or polymer is A non-drawn yarn obtained by melt spinning polyester at the same speed is preferably 70 to 150%, particularly 90 to 30% larger because it can be obtained easily and efficiently.
一般に、 制電剤を含む糸条はフイブリル化しやすく仮撚加工において 毛羽が発生しやすいが、 本発明においては制電糸条を芯部に配し、 鞘部 の糸条で芯部を包み込んで加工時の変形を少なくすることにより、 基本 的に加工時に毛羽が出にく く している。 したがって、 延伸仮撚加工にお いても毛羽の発生は殆ど見られない。  Generally, a yarn containing an antistatic agent is easy to fibrillate and easily generate fuzz during false twisting. In the present invention, the antistatic yarn is arranged in the core portion, and the core portion is wrapped with the yarn of the sheath portion. By reducing deformation during processing, it is basically difficult for fluff to come out during processing. Therefore, almost no fuzz is observed even in the drawing false twisting process.
本発明方法においては、 まず上記の如き低伸度側未延伸糸 （Α' ) と 高伸度側未延伸糸 （Β ' ) とを合糸ないし紡糸混繊してなる未延伸糸条 に空気交絡処理を施す必要がある。 In the method of the present invention, first, the low elongation side undrawn yarn (Α ′) as described above and It is necessary to perform an air entanglement treatment on an undrawn yarn formed by combining or spinning and blending a high-stretch side undrawn yarn (Β ').
空気交絡処理は延伸仮撚加工と別の工程で行ってもよいが、 図 1に示 すように、 延伸仮撚加工装置にインターレースノズル （4 ) を設置して 延伸仮撚加工直前に施すのが好ましい。 このことにより、 伸度差による ネップ発生を抑制し、 取り扱い性に好影響をもたらす。  The air entanglement treatment may be performed in a separate process from the drawing false twisting process. However, as shown in Fig. 1, an interlace nozzle (4) is installed in the drawing false twisting machine and applied just before the drawing false twisting process. Is preferred. This suppresses the generation of neps due to the difference in elongation and has a positive effect on handling.
さらに、 さらに、 別のインターレースノズル （図示せず） により仮撚付 与下に熱セッ トした糸条にも空気交絡を施すことで混繊交絡を完全に均 一化させ、 糸長方向に芯糸を鞘糸が均一に包み込む効果から、 耐久性の ある制電性能を有しかつ高級感を発現させることができる。 In addition, the interlaced nozzle (not shown) is used for air entanglement to the yarn that has been heat-set under false twisting so that the mixed fiber entanglement is completely uniformed and the core is aligned in the yarn length direction. Due to the effect of evenly wrapping the yarn with the sheath yarn, it has durable antistatic performance and can express a high-class feeling.
ィンターレースノズルによる空気交絡の度合いは、 少なすぎると延伸 仮撚加工中に低伸度側糸条群 Αと高伸度側糸条群 Βとが分離して織編物 にした際の織物表面が不均一なものとなりやすく、 特に未延伸糸 A ' と B ' との間の伸度差が 3 0 %以上となる場合に多くなるので、 得られる 複合仮撚加工糸で測定した交絡度が 3 0舞 Zm以上、 特に 4 0個 Zm以 上となるように施すのが好ましい。 一方、 インターレースノズルにより 付与する交絡度が大きくなりすぎると、 単糸同士の絡み合いが強くなり すぎ、 織編物にした際の風合いが粗硬なものとなりやすいので、 8 0個 Zm以下とするのが好ましい。  If the degree of air entanglement by the interlace nozzle is too small, the surface of the fabric is drawn when the low elongation side yarn group Α and high elongation side yarn group Β are separated into a woven or knitted fabric during false twisting. Tends to be uneven, especially when the difference in elongation between the undrawn yarns A ′ and B ′ is 30% or more, and the entanglement degree measured with the resulting composite false twisted yarn is It is preferably applied so that it is 30 or more Zm, particularly 40 or more Zm. On the other hand, if the degree of entanglement imparted by the interlace nozzle becomes too large, the entanglement between the single yarns will become too strong, and the texture when knitted or knitted will tend to be coarse, so it should be 80 pieces Zm or less. preferable.
次に、 交絡処理が施された未延伸糸は、 例えば、 図 1に示すような 2 段式ヒーターを備えた延伸仮撚加工機に掛けて、 捲縮を有するポリエス テル仮撚加工糸とする。 図 1の例では、 前述の如き 2種のポリエステル 組成物を同時に紡糸して引き揃えた未延伸糸 （ 1 ) は、 2対のフィード ローラー （3、 3， ) の間に設置されたインターレースノズル （4 ) に より空気交絡処理が施される。 ここで所定の交絡が付与された未延伸糸 は、 フィードローラー （3 ' ) と第 1デリベリ—ローラー （8 ) との間 で延伸されながら、 仮撚具 （7 ) のディスクとの摩擦により加撚される。 この間、 加撚状態で第 1段ヒーター （5 ) にて熱処理され、 冷却プレー ト （6 ) で冷却された後、 仮燃具 （7 ) を通過し解撚される。 さらに 、 走行糸条は第 1デリべリーローラー （8) と第 2デリべリーローラー ( 1 0) との間に設置された第 2段ヒーター （9) で、 必要に応じ、 再 熱処理され、 さらに、 熱セッ トした仮撚後糸条に空気交絡を施した後、 巻取ローラー （ 1 1) でチ一ズ状パッケージ （ 1 2) として巻き取られ、 目的とする制電性ポリエステル複合仮撚加工糸が製造される。 Next, the undrawn yarn subjected to the entanglement treatment is applied to a drawn false twisting machine equipped with a two-stage heater as shown in FIG. 1 to obtain a crimped polyester false twisted yarn. . In the example shown in Fig. 1, the undrawn yarn (1) obtained by spinning and aligning two types of polyester compositions as described above is an interlace nozzle installed between two pairs of feed rollers (3, 3,). Air entanglement is performed by (4). Here, the undrawn yarn to which a predetermined entanglement is applied is applied by friction with the disk of the false twister (7) while being drawn between the feed roller ( 3 ') and the first delivery roller (8). Twisted. During this time, in the twisted state, it is heat-treated by the first stage heater (5), cooled by the cooling plate (6), and then passed through the temporary burner (7) and untwisted. further The traveling yarn is a second stage heater (9) installed between the first delivery roller (8) and the second delivery roller (10), and is reheated as necessary. After the heat-set false twisted yarn is air entangled, it is wound up as a chiseled package (1 2) by a winding roller (1 1), and the desired antistatic polyester composite false twist A processed yarn is produced.
この際、 高速での延伸仮撚加工を考慮し、 第 1段ヒーター （5) 及び 第 2段ヒーター （9) は非接触式とするのが好ましい。 特に第 2段ヒ一 ター （9) は、 SW—OF Fする （該ヒーターを使用しない） ことが多 いが、 加工糸に求められる風合等の必要に応じて、 使用してもかまわな い。  At this time, it is preferable that the first stage heater (5) and the second stage heater (9) are non-contact type in consideration of high-speed drawing false twisting. In particular, the second stage heater (9) is often SW-OF F (not using the heater), but it may be used as required for the texture required for the processed yarn. Yes.
本発明方法においては、 仮撚具 （7) 力 図 2に示すような 3軸フリ グションディスクタイプで解撚部に位置する最下段のディスク材質がセ ラミックであり、 かつ、 走行糸条と該ディスクとの接触長を 2. 5〜0 . 5mmとし、 さらに、 該ディスクが、 そのすぐ上流のディスクの直径 9 0〜 9 8 %の直径を有することが肝要である。  In the method of the present invention, the false twister (7) force is a triaxial friction disc type as shown in Fig. 2 and the lowermost disc material located at the untwisting portion is ceramic, and the running yarn and It is important that the contact length with the disk is 2.5 to 0.5 mm, and that the disk has a diameter of 90 to 98% of the disk immediately upstream.
すなわち、 図 2に例示する仮撚具 （7) は、 3本の回転軸 （ 1 5) に それぞれ 2個ずっ仮撚ディスク （ 1 3) が取り付けられた 3軸フリ ク シヨンディスクタイプのものであって、 各回転軸 （1 5) は駆動ベルト ( 1 7) で駆動されるタイミングベルト （1 6) により所定速度で回転 し、 それぞれの仮撚ディスク （ 1 3) を回転させるようにしている。 本 発明方法では、 仮撚ディスク （ 1 3) のうち少なく とも解撚部に位置す る最下段のディスク （図 2の例では左側の回転軸に取り付けた下方の ディスク） をセラミック製とし、 かつ、 そのディスクの直径がすぐ上流 側のディスク （図 2の例では中央の回転軸に取り付けた下方のディス ク） の直径の 90〜 9 8 %であるものを使用する。 そして、 該セラミツ ク製ディスクと走行糸条との接触長は 2. 5〜0. 5mmとする。  That is, the false twisting tool (7) illustrated in Fig. 2 is a three-axis friction disk type with two false twisted disks (1 3) attached to three rotating shafts (15). Each rotating shaft (15) is rotated at a predetermined speed by a timing belt (16) driven by a driving belt (17) to rotate each false twist disk (13). . In the method of the present invention, at least the false-twisted disc (1 3), the lowest disc located in the untwisted portion (the lower disc attached to the left rotating shaft in the example of FIG. 2) is made of ceramic, and Use a disk whose diameter is 90 to 98% of the diameter of the disk immediately upstream (the lower disk attached to the central rotating shaft in the example in Fig. 2). The contact length between the ceramic disk and the running yarn is 2.5 to 0.5 mm.
この際、 最下段のディスク材質はセラミックが耐摩耗の観点から好ま しい。 本発明者らの研究によれば、 本発明による複合仮撚加工において は、 走行糸条と該ディスクとの接触長を 2. 5〜0. 5mmとすること で、 加撚が終了して捲縮状態の糸条が最後の解撚部に入る際の接触面積 を極力少なく、 抵抗を少なくすることができ、 その結果、 毛羽が著しく 減少すること、 そして、 該ディスクの径を直上のディスク径よりも 9 0 〜 9 8 %の範囲にすることが、 糸導を次のステップ （具体的には熱セッ ト） へ移動する際の、 抵抗値が少なくなりスムースに移動する上で効果 的であること、 等が判明した。 中でも、 行糸条と上記ディスクとの接触 長を 2 · 5〜0 . 5 m mとすることが加工毛羽を著しく減少する上で特 に有効であることが確認された。 At this time, the lowermost disk material is preferably ceramic from the viewpoint of wear resistance. According to the study by the present inventors, in the composite false twisting process according to the present invention, the contact length between the running yarn and the disk should be 2.5 to 0.5 mm. Thus, the contact area when the twisted yarn ends and the crimped yarn enters the final untwisted portion can be reduced as much as possible, the resistance can be reduced, and as a result, the fluff is significantly reduced, and Setting the diameter of the disk within the range of 90 to 98% of the disk diameter directly above reduces the resistance value when moving the yarn guide to the next step (specifically, heat set). It turned out that it was effective in moving smoothly. In particular, it was confirmed that setting the contact length between the running yarn and the disk to 2.5 to 0.5 mm is particularly effective in significantly reducing the processed fluff.
本発明方法では、 このような諸条件の組み合わせにより、 加工毛羽の 発生を著しく低減することが可能となる。 しかるに、 この範囲を外れる と、 加工毛羽が発生して、 市場での、 製織性、 解舒性、 織物製品での品 質に悪影響を及ぼす要因となる。  In the method of the present invention, it is possible to remarkably reduce the occurrence of processed fluff by combining such conditions. However, if it falls outside this range, processed fluff will be generated, which will adversely affect the weaving and unwinding properties of the market and the quality of textile products.
本発明における仮燃加工温度は 1. 7 0〜 3 0 0 °Cとすることが必要で ある。 この温度が 1 7 0 °C未満では、 捲縮性能 低く、 風合いが硬く、 3 0 0 °Cを超える場合は、 極端に、 加工糸の扁平が進み、 加工毛羽が発 生するようになるので、 好ましくない。 仮撚加工機として非接触式の ヒーターを備えた装置を使用する場合は、 第 1段非接触式ヒーター.の設 定温度を 1 7 0〜 3 0 0 °Cとして熱処理するのが好ましい。 なお、 ここ でいう適正ヒーター温度は、 市販の仮燃加工機 （帝人製機製 2 1 6錘建 H T S— 1 5 V ) によるもので、 非接触式の 1 . 0〜： I . 5 m長のもの 糸速として 8 0 0 mZ分〜などの仕様のものを想定しており、 従って、 特殊なヒーターを用いたり、 超高速度で加工する場合などは設定温度を 適宜調整すべきは、 もちろんのことである。  The calcining temperature in the present invention is required to be 1.70 to 300 ° C. If this temperature is less than 1700 ° C, the crimping performance is low and the texture is hard, and if it exceeds 300 ° C, the flatness of the processed yarn will be extremely advanced and processed fluff will be generated. It is not preferable. When using a device equipped with a non-contact heater as the false twisting machine, it is preferable to heat-treat the first stage non-contact heater at a set temperature of 1700 to 300 ° C. The proper heater temperature here is based on a commercially available calorific processing machine (Teijin Seiki 2 16 6 HTS-1 5 V), non-contact type 1.0 to 1.5 m long The yarn speed is assumed to be from 800 mZ min., Etc. Therefore, when using a special heater or processing at ultra high speed, the set temperature should be adjusted appropriately. That is.
ここで加撚領域の第 1 ヒーターは、 未延伸糸条の延伸性及ぴ仮撚加工 性 （撚り掛け性） を向上させるためのものであり、 この温度が、 非接触 ヒーターの場合では 1 7 0 °C未満の温度では、 撚り掛け性が低下して本 発明の目的とする捲縮を付与することができなくなり、 織編物にした際 の風合がペーパーライクとなる。 また、 延伸仮撚加工時の断糸及び毛羽 の発生が多くなり、 捲縮斑や染色時の染色斑も発生しやすくなるので好 ましくない。 一方、 300°Cを超えると、 延伸仮撚加工時、 単糸切れが 発生しやすくなり、 特に高伸度側の未延伸糸条 （B ') に単糸切れが発 生しやすく、 得られるポリエステル複合仮撚加工糸は毛羽の多いものと なるので好ましくない。 なお、 延伸仮撚加工機のタイプによっては、 第 1段ヒーターが前半部と後半部に分割されている場合があるが、 本発明 方法においては第 1段ヒーターの前半部と後半部とは同一温度に設定す ればよい。 Here, the first heater in the twisted region is for improving the stretchability and false twisting property (twistability) of the unstretched yarn. This temperature is 1 7 in the case of a non-contact heater. If the temperature is less than 0 ° C., the twistability is lowered and the desired crimp of the present invention cannot be imparted, and the texture of the woven or knitted fabric becomes paper-like. In addition, yarn breakage and fluff are more likely to occur during drawing false twisting, and crimped spots and stained spots are more likely to occur during dyeing. It ’s not good. On the other hand, if the temperature exceeds 300 ° C, single yarn breakage tends to occur during drawing false twisting, and single yarn breakage tends to occur especially in the undrawn yarn (B ') on the high elongation side. Polyester composite false twisted yarn is not preferred because it has a lot of fluff. Depending on the type of drawing false twisting machine, the first stage heater may be divided into the first half and the second half, but in the method of the present invention, the first half and the second half of the first stage heater are the same. Set to temperature.
なお、 第 1段ヒーターにおける糸条の熱処理時間は、 ヒーターの種類、 その長さ及びその温度等により適宜設定すればよいが、 熱処理時間が短 すぎると捲縮率が不十分なものとなりやすく、 また、 張力変動に起因す る延伸仮撚断糸、 仮撚加工糸の毛羽、 織編物での染斑が発生しやすくな り、 一方、 長すぎると捲縮率が大きくなりすぎる傾向にある。 このため 非接触式ヒーターで熱処理する場合は、 通常、 0. 04〜0. 1 2秒の 範囲、 特に 0. 06〜0. 1 0秒の範囲が適当である。  The heat treatment time of the yarn in the first stage heater may be set as appropriate depending on the type of heater, its length, its temperature, etc., but if the heat treatment time is too short, the crimp rate tends to be insufficient. Also, stretched false twisted yarns, fuzz of false twisted yarns, and dyeing spots on woven or knitted fabrics due to fluctuations in tension tend to occur. On the other hand, if the length is too long, the crimp rate tends to be too large. For this reason, when heat-treating with a non-contact type heater, a range of 0.04 to 0.12 seconds is generally appropriate, particularly a range of 0.06 to 0.10 seconds.
さらに、 加工時の延伸倍率については、 1. 4〜 1. 7が最適ゾーン であり、 この領域を外れると、 低倍率側では、 サージング、 発生、 糸揺 れによる熱セッ ト斑、 高倍率側では、 加工糸の扁平が進み、 加工毛羽が 発生するようになるので、 好ましくない。  Furthermore, with regard to the draw ratio during processing, the optimum zone is 1.4 to 1.7, and if it is outside this region, surging, generation, thermal set spots due to thread shaking, high magnification side Then, since the flatness of the processed yarn advances and processed fluff is generated, it is not preferable.
仮撚数は、 複合仮撚加工糸の繊度を Y ( d t e X ) と したとき、 [ (1 5000〜 35000) /Y 1/2] 回 Zn より好ましくは [ (2 0000〜30000) /Y 1/2] 回 Zm、 の範囲に設定する。 仮撚数 が 1 5000ZY 1 2回ノ m未満の場合には、 微細で強固な捲縮を付 与するのが難しくなつて得られる布帛がペーパーライクになり、 風合が 硬くなる。 仮撚数が 35000ZY1/2回 Zmを超える場合は、 断糸及 び毛羽の発生が多くなる。 ' The number of false twists is preferably [(1 5000-35000) / Y 1/2 ] times Zn when the fineness of the composite false twisted yarn is Y (dte X), more preferably [(2 0000-30000) / Y 1 / 2 ] times Zm, set to the range. If the number of false twists is less than 1 5000ZY 1 2 nom, the fabric obtained when it becomes difficult to give a fine and strong crimp becomes paper-like and the texture becomes hard. If the number of false twists exceeds 35000ZY 1/2 times Zm, yarn breakage and fluffing increase. '
本発明では、 先ず、 延伸仮撚装置に供給される、 合糸ないし紡糸混繊 してなるポリエステル,未延伸糸条に予め空気交絡を施す必要がある。 空 気交絡は延伸仮撚処理とは別個に行ってもよいが、 図 1のように延伸仮 撚装置にィンターレースノズルを設置して延伸仮撚直前に糸条に空気交 絡処理をする方法が好ましい。 空気交絡の度合いはポリエステル仮撚加 ェ糸で測定した交絡度が 3 0〜8 0個 Zn より好ましくは 5 p〜 7 0 個 mとなるように施す。 交絡度が 3 0個/ m未満の場合はポリエステ ル未延伸糸を構成する糸条同士の混ざり合いが悪く、 延伸仮撚工程での 解舒不良による断糸及ぴ加撚，解撚時の単糸切れ発生等が多くなり好ま しくない。 一方、 交絡度が 8 0個 を超える場合はポリエステル仮撚 加工糸を構成する単糸同士の絡み合いが強くなり過ぎて、 糸が固まった 状態となり好ましくない。 In the present invention, first, it is necessary to air entangle the polyester or undrawn yarn, which is supplied to the drawing false twisting device, which is mixed or spun and mixed. Although air entanglement may be performed separately from the drawing false twisting process, an interlace nozzle is installed in the drawing false twisting apparatus as shown in Fig. 1, and air exchange is performed on the yarn immediately before drawing false twisting. A method of performing an entanglement process is preferable. The degree of air entanglement is such that the degree of entanglement measured with polyester false twisted yarn is 30 to 80 pieces Zn, more preferably 5 p to 70 pieces m. When the degree of entanglement is less than 30 pieces / m, the yarns constituting the polyester undrawn yarn are poorly mixed with each other, and during the drawing false twisting process, the yarn is broken and twisted during twisting and untwisting. It is not preferable because of the occurrence of single yarn breakage. On the other hand, when the degree of entanglement exceeds 80, the entanglement between the single yarns constituting the polyester false twisted yarn becomes too strong, and the yarn becomes hardened, which is not preferable.
仮撚具のディスク寸法は特に限定されないが、 直径が 4 0〜7 0 m m のディスク、 好ましくは直径 4 5〜6 2 m mのディスクが好ましい。 例 えば図 2に示すような、 ディスク各 2枚を 3軸に配置した仮撚ュニッ ト として組み立てて使用する。 ディスク直径が 4 O m m未満では、 糸条群 A ' の、 ディスクによる摩擦損傷が増加して断糸及び毛羽の発生が多く なりやすい。 一方、 7 0 m mを超えるに場合は、 ディスクによる撚り掛 け力が低下して十分な捲縮を付与することが困難になる。  The disk size of the false twisting tool is not particularly limited, but a disk having a diameter of 40 to 70 mm, preferably a disk having a diameter of 45 to 62 mm is preferable. For example, as shown in Fig. 2, two disks each are assembled and used as a false twist unit arranged on three axes. When the disc diameter is less than 4 Om m, the frictional damage caused by the disc in the yarn group A 'increases, and the occurrence of yarn breakage and fluff tends to increase. On the other hand, if it exceeds 70 mm, the twisting force by the disk decreases, and it becomes difficult to provide sufficient crimp.
該ディスクを通過する糸条の走行角 （ディスク回転軸とディスクの外 周上を接触走行する糸条とがなす角度） は、 3 0〜4 8度、 特に 3 2〜 4 5度の範囲とすることが好ましい。 かくすることにより、 ディスクに よる撚り掛け力を低下させることなく、 糸送り作用を高め、 安定した状 態で加撚，解撚を施すことができる。  The running angle of the yarn passing through the disc (the angle formed by the disc rotating shaft and the yarn running in contact on the outer circumference of the disc) is in the range of 30 to 48 degrees, especially 3 to 45 degrees. It is preferable to do. In this way, the yarn feeding action can be enhanced and the twisting and untwisting can be performed in a stable state without reducing the twisting force of the disk.
一般に、 制電剤を含む糸条はフイブリル化しやすく仮撚加工において 毛羽が発生しやすいが、 本発明においては、 制電糸条を芯部に配し、 鞘 部糸条で芯部を包み込んで加工時の変形を少なくすることによって加工 時に毛羽が出にく く しており、 かつ上記の如き仮撚加工条件を選定する ため、 両方相まって毛羽発生が極めて少ない非常に良好な複合仮撚加工 糸が得られるのである。  In general, a yarn containing an antistatic agent is easily fibrillated and easily generates fuzz during false twisting. In the present invention, the antistatic yarn is arranged in the core portion, and the core portion is wrapped with the sheath portion yarn. Minimizing deformation during processing makes it difficult for fluff to come out during processing, and because of the selection of false twisting conditions as described above, combined with both, extremely good composite false twisted yarn with very little fluff generation Is obtained.
このようにして得られる本発明の複合仮撚加工糸は、 例えば、 無撚、 無糊でウォータージェッ トルーム等により織物とすることができ、 この 際、 製織性は良好で、 断糸等も無く円滑に製織することができる。 そし て、 本発明のポリエステル複合仮撚加工糸からなる布帛は良好な制電性 を有し、 また、 官能評価でも、 非常に深みのある、 かつ高級感を有し、 ソフトでかつ良好なふく らみを呈したスパンライク風合のものとなる。 実施例 The composite false twisted yarn of the present invention obtained in this way can be made into a woven fabric with water jet room, etc. without twisting, without glue, and at this time, weaving property is good, and there is no yarn breakage. Smooth weaving. And The fabric comprising the polyester composite false-twisted yarn of the present invention has good antistatic properties, and has a very deep and high-class feeling in the sensory evaluation, and is soft and has a good fabric. It will be of a spanish-like texture that has a unique appearance. Example
以下、 実施例及び比較例により、 本発明をさらに具体的に説明する。 なお、 例中に示す各測定値は次の方法で測定した値である。 また、 例中 において単に 「部」 とあるは、 特に断らない限り重量部を意味する。  Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples. In addition, each measured value shown in the example is a value measured by the following method. In the examples, “parts” means parts by weight unless otherwise specified.
( 1 ) 固有粘度  (1) Intrinsic viscosity
芳香族ポリエステル組成物をオルソ一クロルフエノールに溶解し、 ゥ ベロ—デ粘度管を用い、 3 5 で測定した。  The aromatic polyester composition was dissolved in ortho-chlorophenol and measured at 35 using a tuberde viscometer.
( 2 ) 紡糸断糸  (2) Spinned yarn
溶融紡糸設備で 1週間溶融紡糸を行い断糸した回数を記録し、 1 日 1 錘当りの紡糸断糸回数を紡糸断糸とした。 ただし、 人為的あるいは機械 的要因による断糸は断糸回数から除外した。  The number of times that the melt spinning was performed for one week in the melt spinning facility was recorded, and the number of times of spinning break per spindle per day was regarded as the spun yarn. However, thread breakage due to human or mechanical factors was excluded from the number of breaks.
( 3 ) 複屈折率  (3) Birefringence
常法に従い、 光学顕微鏡とコンペンセ一ターを用いて、 繊維の表面に 観察される偏光のリタ一デーシヨンから求めた。  In accordance with an ordinary method, it was obtained from the retardation of polarized light observed on the fiber surface using an optical microscope and a compensator.
( 4 ) 走行角  (4) Traveling angle
仮撚ディスク上を走行している糸条を写真撮影し、 各仮撚ディスク円 盤上の糸条の走行角度 0 を写真の上で実測して、 それらの測定値の平 均値を走行角とした。  Take a picture of the yarn running on the false twist disc, measure the running angle 0 of the yarn on each false twist disc on the photo, and calculate the average of these measured values as the running angle. It was.
( 5 ) 延伸仮撚断糸  (5) drawn false twisted yarn
帝人製機製 2 1 6錘建 「H T S— 1 5 V」 （2 ヒーター仮撚加工機で '非接触式ヒーター仕様） にて、 延伸仮撚加工を 1週間連続実施し、 延伸 仮撚機 1台 · 1 日当たりの断糸回数を延伸仮撚断糸とした。 ただし、 糸 繋ぎ前後による断糸 （ノッ ト断糸） あるいは自動切替え時の断糸等、 人 為的あるいは機械的要因による断糸は断糸回数から除外した。  Made by Teijin Seiki 2 1 6-storied “HTS— 15 V” (2 heater false twisting machine, non-contact heater specification) · The number of yarn breaks per day was drawn false twisted yarn. However, thread breakage due to human or mechanical factors such as thread breakage before and after thread joining (knot breakage) or thread breakage during automatic switching was excluded from the number of breaks.
( 6 ) 捲縮率 ポリエステル仮撚加工糸サンプルに 0. 04 4 c N/ d t e Xの張力 を掛けてカセ枠に巻き取り、 約 3 3 0 0 d t e xのカセを作成した。 該 カセの一端に 0. 0 1 7 7 c N d t e X及び 0. 1 7 7 c N/d t e xの 2個の荷重を負荷し、 1分間経過後の長さ S O ( c m) を測定した 次いで、 0. 1 7 7 c N/d t e Xの荷重を除去した状態で 1 0 0°Cの 沸水中にて 2 0分間処理した。 沸水処理後 0. 0 1 7 7 c N/d t e x の荷重を除去し、 2 4時間自由な状態で自然乾燥し、 再び 0. 0 1 7 7 じ 1^/ £1 1 6 及び0. 1 7 7 c NZ d t e Xの荷重を負荷し、 1分間 経過後の長さを S 1 ( c m) 測定した。 次いで、 0. 1 7 7 c N/d t e xの荷重を除去し、 1分間経過後の長さを測定して S 2 ( c m) を求 めし、 次の数式で捲縮率を算出した。 なお、 本実施例及び比較例では 1 0回の測定値の平均値で表した。 (6) Crimp rate A polyester false twisted yarn sample was wound on a cassette frame with a tension of 0.04 4 c N / dte X to create a cassette of about 3 300 dtex. Two loads of 0.0 1 7 7 c N dte X and 0.1 7 7 c N / dtex were applied to one end of the cassette and the length SO (cm) after 1 minute was measured. The sample was treated in boiling water at 100 ° C for 20 minutes with the 0.17 7 c N / dte X load removed. After boiling water treatment 0. 0 1 7 7 c Remove the N / dtex load, let it dry naturally for 24 hours, and again 0. 0 1 7 7 1 ^ / £ 1 1 6 and 0.1 7 A load of 7 c NZ dte X was applied, and the length after 1 minute was measured by S 1 (cm). Next, the load of 0.17 7 cN / dtex was removed, the length after 1 minute was measured to determine S 2 (cm), and the crimp rate was calculated by the following formula. In Examples and Comparative Examples, the average value of 10 measurement values was used.
捲縮率 （％) = [ (S 1 - S 2) /S O] X 1 0 0  Crimp rate (%) = [(S 1-S 2) / S O] X 1 0 0
( 7) 仮撚加工糸、 複合仮撚加工糸の強度、 伸度 ' J I S L— 1 0 1 3— 7 5に準じて、 破断強度と破断伸度を測定 した。  (7) Strength and Elongation of False Twisted Yarn and Composite False Twisted Yarn Measured according to JISL—10 1 3—75.
(8) 毛羽個数  (8) Number of fuzz
東レ （株） 製 DT_ 1 0 4型毛羽カウンタ一装置を用いて、 ポリエス テル仮撚加工糸サンプルを 5 0 OmZ分の速度で 2 0分間連続測定して 発生毛羽数を計測し、 サンプル長 1万 m当たりの個数で表した。  Using a DT_ 1 0 4 type fluff counter manufactured by Toray Industries, Inc., a polyester false twisted yarn sample was continuously measured at a speed of 50 OmZ for 20 minutes to measure the number of fluffs generated. Expressed as the number per 10,000 m.
( 9) 風合い  (9) Texture
専門家一による官能検査で以下のレベルにランクわけした。  It was ranked to the following level by the sensory test by one expert.
(ソフ ト感）  (Soft feeling)
レベル 1 ： ソフ トでしなやかな感触がある  Level 1: Soft and supple feel
レベル 2 ：ややソフ ト感が乏しいが反撥性は感じられる  Level 2: Slightly soft but feels repellent
レベル 3 ： カサカサした触感あるいは硬い触感である。  Level 3: A crisp or hard feel.
(スパン感）  (Span feeling)
レべノレ 1 ：極めてバルキーでスパン感に富んでいる。  Lebenole 1: Extremely bulky and rich in span.
レべノレ 2 ：ややスパン感が乏しい。 レベル 3 ： フラッ トヤーンライクの触感あるいは硬い触感である。Rebenore 2: Span is slightly poor. Level 3: A flat yarn-like feel or a hard feel.
(10) 帯電性試験： A法 （半減期測定法） (10) Chargeability test: Method A (half-life measurement method)
仮撚加工糸を、 筒編みし、 染色し、 調湿後、 試験片をコロナ放電場で 帯電させた後、 この帯電圧が 1Z2に減衰するまでの時間 （秒） をスタ ティック ·ォネス トメータで測定した。 時間 （秒） が短い方が、 制電性 能が優れていると評価される。  After twisting and dyeing false twisted yarn, conditioning the humidity, and charging the specimen in a corona discharge field, the time (seconds) until this charged voltage decays to 1Z2 is measured with a static cone meter. It was measured. The shorter the time (seconds), the better the anti-static performance.
(1 1) 帯電性試験 ： B法 （摩擦帯電圧測定法）  (1 1) Chargeability test: Method B (friction band voltage measurement method)
試験片を回転させながら摩擦布で摩擦し、 発生した帯電圧を測定した。 具体的手順は、 J I S L 1 0 94帯電性試験方法 B法 （摩擦帯電圧測 定法） に準拠する。 この摩擦帯電圧が約 2000 V以下 （好ましくは 1 500 V以下） であれば、 制電効果があると評価される。  The test piece was rubbed with a friction cloth while rotating, and the generated charged voltage was measured. The specific procedure conforms to J IS L 1 0 94 Chargeability Test Method B (Friction Band Voltage Measurement Method). If this frictional voltage is about 2000 V or less (preferably 1 500 V or less), it is evaluated that there is an antistatic effect.
(1 2) 交絡度  (1 2) Entanglement degree
約 1. 2 mのポリエステル仮撚加工糸の糸端に 0. 2 cNZd t e x の荷重をかけて、 衝立上部に取り付けられた固定点から垂直にたらし、 0. 1 c NZd t e Xの荷重に相当する重量の釣り針型のフックを用い、 上部固定点より、 該釣り針型フックを揷入し、 フックが自然落下し止ま るのを待って取り外した。 次いで、 停止点から 2 mm下の位置にフック を再び挿入し、 同様の操作を行った。 これを糸長 1 mにわたつて繰り返 し、 その間でフックの止まった回数を交絡度 （ケノ m) とした。  Apply a load of 0.2 cNZd tex to the end of a polyester false twisted yarn of about 1.2 m, and pull it vertically from the fixing point attached to the top of the screen, to a load of 0.1 c NZd te X A fishhook-type hook with a corresponding weight was used, and the fishhook-type hook was inserted from the upper fixing point, and it was removed after the hook naturally dropped and stopped. Next, the hook was inserted again at a position 2 mm below the stop point, and the same operation was performed. This process was repeated for a thread length of 1 m, and the number of times the hook stopped during that time was taken as the degree of entanglement (Keno m).
(1 3) 溶融粘度 （MV PM、 MV P S、 MV P E s )  (1 3) Melt viscosity (MV PM, MV P S, MV P E s)
ポリメチルメタアタリ レー 系重合体、 ポリスチレン系重合体及びポ リエステルの溶融粘度 （MVPM、 MVP S及び MVP E s ) は、 島津 製作所製の島津フローテスターを使用し、 吐出径 0. 5 φ mmx孔長 1 mmのオリフィスを使用し、 シリンダー温度 2 9 5°C、 20 KG荷重 下で測定した。 その時の押出圧力を検出し、 粘度式に外挿され求め,られ た値である。 測定された基質ポリエステルの溶融粘度 MVPE sは 1 4 0 0ポィズであった。 この値に対し測定されたポリメチルメタァク リ レート重合体あるいはポリスチレン重合体の溶融粘度の比率を計算した。  The melt viscosity (MVPM, MVP S and MVP Es) of the polymethylmethacrylate polymer, polystyrene polymer and polyester is Shimadzu flow tester manufactured by Shimadzu Corporation. Using a 1 mm long orifice, measurement was performed under a cylinder temperature of 295 ° C and a load of 20 KG. This is the value obtained by detecting the extrusion pressure at that time and extrapolating it to the viscosity equation. The melt viscosity MVPE s of the measured substrate polyester was 140.000 poise. The ratio of the melt viscosity of the polymethyl methacrylate polymer or polystyrene polymer measured for this value was calculated.
( 1 4) メルトインデックス ポリメチルメタァクリ レート系重合体、 ポリスチレン系重合体'のメル トインデックスは、 A S TMD- 1 2 3 8に従って測定した。 (1 4) Melt index The mel index of the polymethyl methacrylate polymer and the polystyrene polymer 'was measured according to AS TMD-1283.
( 1 5 ) 伸度差  (15) Elongation difference
未延伸糸試料を気温 2 5°C、 湿度 6 0 %の恒温恒湿に保たれた部屋に 1昼夜放置した後、 サンプル長さ 1 0 Ommを （株） 島津製作所製の引 張試験機テンシロンにセッ トし、 2 0 Omm/分の速度にて引張し荷伸 曲線を記録した。 記録したチヤ一トから 2群の構成糸条の荷伸曲線を特 定し、 各々の破断時の伸度を読み取り、 その差を未延伸糸条群 A' と未 延伸糸条群 B ' との伸度差とした。  After leaving the undrawn yarn sample in a room maintained at a constant temperature and humidity of 25 ° C and humidity of 60% for one day, set the sample length to 10 Omm Tensilon, a tensile tester manufactured by Shimadzu Corporation And a tensile curve was recorded at a speed of 20 Omm / min. The load elongation curves of the two groups of constituent yarns are determined from the recorded cheats, the elongation at break of each is read, and the difference between them is obtained as undrawn yarn group A 'and undrawn yarn group B'. The elongation difference.
また、 糸条群 （A) 及び糸条群 （B) の伸度差の測定に当っては、 テ ンシロン引張試験器を用いて得られた荷伸曲線から各糸条群の破断時の 伸度を測定した。 糸条群 （A) の伸度 （E a %) と非晶性ポリマーであ るポリスチレン重合体又はポリメチルメタァクリ レート重合体を含む糸 条群 （B) の伸度 （E b %) との差の絶対値を取り （E b) — (E a ) で伸度差とした。 なお、 本発明では、 混繊原糸の該糸条群 Aと該糸条群 Bとが交絡されているので、 伸度の測定は該糸条群 A、 Bを別個にサン プリングし、 別個に測定を行うのが好ましいが、 交絡された混繊糸状態 で測定しても得られた荷伸曲線から該糸条群 A、 Bの破断伸度が識別可 能であるため、 ここでは混繊糸の状態で直接伸長測定実施した。 なお、 混繊された後のサンプル糸条での伸度の測定値は別個にサンプリングし た糸条での測定値より 1 0— 2 0 %低い傾向が認められたが、 伸度差は 同等である。  In measuring the elongation difference between the yarn group (A) and the yarn group (B), the elongation at break of each yarn group was determined from the load elongation curve obtained using a Tensilon tensile tester. The degree was measured. Elongation (E a%) of the yarn group (A) and elongation (E b%) of the yarn group (B) containing a polystyrene polymer or polymethyl methacrylate polymer which is an amorphous polymer The absolute value of the difference between the two was taken as (E b) — (E a) and the difference in elongation was taken. In the present invention, since the yarn group A and the yarn group B of the mixed fiber are entangled, the measurement of the elongation is performed by sampling the yarn groups A and B separately. However, it is possible to distinguish the elongation at break of the yarn groups A and B from the unloading curve obtained even in the entangled mixed yarn state. Direct elongation measurement was carried out in the state of fiber. In addition, the measured values of the elongation of the sample yarn after blending tended to be 10 to 20% lower than those of the separately sampled yarn, but the difference in elongation was the same. It is.
( 1 6) 糸条群 Aと糸条群 Bとの糸長差  (16) Yarn length difference between yarn group A and yarn group B
5 0 c mの複合仮撚加工糸の一端に 0. 1 7 6 c NZd t e x (0. 2 g / d e ) の荷重を掛け、 垂直に吊し、，正確に 5 c m間隔のマーキン グを行った。 荷重を外し、 マーキング部分を正確に切りとつて 1 0本の 試料とした。 該試料より、 鞘部分のフィラメント及び芯部のフィラメン トを各々 1 0本取出し、 各々の単糸に 0. O S c N/ d t e x ( 1 /3 0 g/ d e ) の加重を掛けて、 垂直に吊るし、 各々の長さを測定する。 1 0本の試料について上記の測定を行い、 各々の平均値を L b (鞘糸 長） 及び L a (芯糸長） とし、 下記式で糸長差を計算した。 A load of 0.1 7 6 c NZd tex (0.2 g / de) was applied to one end of a 50 cm composite false twisted yarn, suspended vertically, and marked accurately at intervals of 5 cm. . The load was removed and the marking part was cut accurately to make 10 samples. Take out 10 filaments in the sheath part and filaments in the core part from the sample, and apply a weight of 0. OS c N / dtex (1/30 g / de) to each single yarn, and vertically Hang and measure the length of each. The above measurement was performed on 10 samples, and the average value of each was defined as L b (scabbard yarn length) and L a (core yarn length), and the yarn length difference was calculated by the following formula.
糸長差 = (L b— L a ) /L b X 1 0 0% 実施例 1〜 3、 比較例：！〜 5  Yarn length difference = (L b — L a) / L b X 1 0 0% Examples 1 to 3, Comparative example:! ~ Five
テレフタル酸ジメチル 1 0 0部、 エチレングリコール 6 0部、 酢酸力 ルシゥム 1水塩 0. 0 6部 （テレフタル酸ジメチルに対して 0. 0 6 6 モル％) 及び整色剤として酢酸コバルト 4水塩 0. 0 1 3部 （テレフタ ル酸ジメチルに対して 0. 0 1モル0 /0) をエステル交換反応缶に仕込み この反応物を窒素ガス雰囲気下で 4時間かけて 1 4 0°Cから 2 2 0°Cま で昇温し、 反応缶中に生成するメタノールを系外に留去しながらエステ ル交換反応させた。 エステル交換反応終了後、 反応混合物に安定剤とし てリン酸トリメチル 0. 0 5 8部 （テレフタル酸ジメチルに対して 0. 0 8 0モル0 /0) 及び消泡剤としてジメチルポリシロキサンを 0. 0 2 4 部加えた。 Dimethyl terephthalate 100 parts, Ethylene glycol 60 parts, Acetic acid Lucium monohydrate 0.06 parts (0.0 6 6 mol% with respect to dimethyl terephthalate) and Cobalt acetate tetrahydrate as color adjuster 0.0 1 3 (terephthalic 0.0 1 mol per le dimethyl 0/0) of the reaction were charged into an ester exchange reaction can over 4 hours under an atmosphere of nitrogen gas 2 from 1 4 0 ° C The temperature was raised to 20 ° C, and the ester exchange reaction was carried out while distilling out the methanol produced in the reaction vessel out of the system. After transesterification reaction was completed, the dimethyl polysiloxane as a reaction mixture as a stabilizer trimethyl 0.0 5 8 parts of phosphoric acid (0.0 8 0 mole 0/0 for dimethyl terephthalate) in and defoamer 0. 0 2 4 copies were added.
次に、 1 0分後に、 反応混合物に三酸化アンチモン 0. 0 4 1部 （テ レフタル酸ジメチルに対して 0. 0 2 7モル％) を添加し、 同時に過剰 のエチレングリコールを留去しながら 24 0°Cまで昇温し、 その後、 反 応混合物を重合反応缶に移した。 次いで 1時間 4 0分かけて 7 6 0 mm H gから 1 mmH gまで減圧するとともに 2 4 0°Cから 2 8 0°Cまで昇 温して重縮合反応せしめて得た反応生成物に、 下記化学式で表される水 不溶性ポリオキシエチレン系ポリエーテル {制亀剤 （a ) } 及びドデシ ルベンゼンスルホン酸ナトリ ウム {制電剤 （b) } をそれぞれ表 1に示 す重量部だけ真空下で添加し、 さらに 2 4 0分間重縮合反応せしめ、 次 いで酸化防止剤と してチバカイギ一社製 「ィルガノ ックス」 1 0 1 0 (登録商標） 0. 4部を真空下で添加し、 その後さらに 3 0分間重縮合 反応を行なった。 このように重合反応工程で制電剤を添加して得られた ポリマーは、 常法にてチップとした。 この制電剤含有芳香族ポリエステ ル組成物の固有粘度は 0. 6 5 7、 軟化点 2 5 8°Cであった。 H O^-C H C 0)-m- C H . C H 4 O 一 C j H2 i + I Next, after 10 minutes, 0.04 1 part of antimony trioxide (0.027 mol% with respect to dimethyl terephthalate) was added to the reaction mixture, and at the same time, excess ethylene glycol was distilled off. The temperature was raised to 240 ° C, and then the reaction mixture was transferred to a polymerization reactor. Next, the reaction product obtained by reducing the pressure from 760 mm Hg to 1 mmHg over 1 hour and 40 minutes and raising the temperature from 240 ° C to 28 ° C to cause the polycondensation reaction was obtained. The water-insoluble polyoxyethylene-based polyether represented by the following chemical formula {anti-turtle agent (a)} and sodium dodecylbenzenesulfonate {anti-static agent (b)} are each vacuumed in parts by weight as shown in Table 1. In addition, the polycondensation reaction was allowed to proceed for 240 minutes, and then 0.4 parts of “Ilganox” manufactured by Cibakaigi Co., Ltd. as an antioxidant was added under vacuum, and then The polycondensation reaction was further performed for 30 minutes. Thus, the polymer obtained by adding the antistatic agent in the polymerization reaction step was formed into a chip by a conventional method. This antistatic agent-containing aromatic polyester composition had an intrinsic viscosity of 0.65 7 and a softening point of 2 58 ° C. HO ^ -CHC 0) -m -CH. CH 4 O One C j H 2 i + I
-rC Hg C H O ― H -rC H g CHO ― H
m H 2 このようにして得られたチップを常法により乾燥した。 次いで、 乾燥 チップを溶融紡糸設備に供給して、 各々常法で溶融し、 スピンブロック を通して、 スピンパックに導入した。 該スピンパックに組み込まれた円 形吐出孔を 3 6個穿設した紡糸口金から吐出させ、 通常のクロスフロー 型紡糸筒からの冷却風で冷却 ·固化し、 紡糸油剤を付与しつつ一本の糸 条として集束し、 表 1に示す速度で引き取って、 1 4 0 d t e x/ 3 6 フィラメントのポリエステル未延伸糸を得た。 各未延伸糸の複屈折率は 表 1の通りであった。 m H 2 The chip thus obtained was dried by a conventional method. Next, the dried chips were supplied to a melt spinning facility, melted in a conventional manner, and introduced into a spin pack through a spin block. It is discharged from a spinneret with 36 circular discharge holes built into the spin pack, cooled and solidified with cooling air from a normal cross-flow type spinning cylinder, and a single spinning oil is applied while applying spinning oil. The yarns were bundled as yarns and taken up at the speed shown in Table 1 to obtain polyester undrawn yarns having 140 dtex / 36 filaments. Table 1 shows the birefringence of each undrawn yarn.
該ポリエステル未延伸糸を、 それぞれ、 帝人製機 （株） 製の延伸仮撚 加工機 2 1 6錘建 「HT S— 1 5 VJ に掛け、 図 1の如く、 延伸仮撚加 ェの前段及び後段で、 それぞれ、 孔径 1. 8 mmの圧空吹き出し孔を有 するィンターレースノズルを通過させつつ 6 0 n L/分の流量で加工糸 の交絡度が 5 0ケノ mとなるように空気交絡を施し、 延伸倍率 1. 6 0、 第 1段ヒーター （非接触タイプ） 温度 2 5 0 の条件に設定し、 3軸フ リクションディスクタイプの仮撚具で、 走行角 4 3度で、 仮撚数 XY 1 /2=約 2 6 0 0 0 [ただし、 Y=仮撚加工糸総繊度 （d t e X ) ]とな るような条件で延伸仮撚加工を行い、 速度 8 0 0 m/分でチーズ形状に 巻き取り、 8 4 d t e xZ36フィラメント （平均単糸繊度 2. 1 d t e x ) のポリエステル仮撚加工糸を得た。 得られたポリエステル仮撚加 ェ糸の物性を表 1に示す。 The polyester unstretched yarn is stretched by Teijin Seisakusho Co., Ltd., drawn false twisting machine 2 1 6-ply “HT S—15 VJ, and as shown in FIG. In the subsequent stage, air entangled so that the entanglement degree of the processed yarn becomes 50 kenom at a flow rate of 60 n L / min while passing through an interlace nozzle having a pressure air blowing hole with a hole diameter of 1.8 mm. A stretch ratio of 1.60, a first stage heater (non-contact type), a temperature of 2500, a three-axis friction disc type false twister with a running angle of 43 degrees, twist number XY 1/2 = about 2 6 0 0 0 [where, Y = false twisted yarn total denier (dte X)] performs the draw false twisting in the do so that conditions, speed 8 0 0 m / min The polyester false twisted yarn of 8 4 dte xZ36 filament (average single yarn fineness 2.1 dtex) was obtained. It is shown in Table 1.
この際使用した仮撚具は、 図 2に示す 3軸フリクションディスクタイ プであつ X、 解撚部に位置する最下段のディスクがセラミック製であり、 該ディスクと走行糸条との接触長が 1 . 5 mmであり、 かつ、 そのディ スク径が 5 7 m mであって直上のディスク径に対し 9 5 %のものであり、 解撚部に位置する最下段のセラミック製ディスク以外は、 直径 6 O m m、 厚み 9 m mのポリウレタン製の仮撚ディスクを備えるものを使用した。 次に、 得られた仮撚加工糸を用いてメ リヤス編地を製造し、 制電性を 測定した。 編地の制電性能の結果を表 1に示す。 The false twisting tool used in this case is a triaxial friction disc type X shown in Fig. 2 and the bottom disc located at the untwisting section is made of ceramic. The contact length between the disc and the running yarn is 1.5 mm and the distance The diameter of the disc is 57 mm, which is 95% of the diameter of the disk directly above. Except for the bottom ceramic disk located at the untwisted part, the diameter of the polyurethane is 6 O mm and the thickness is 9 mm. What provided the false twist disk was used. Next, a knitted fabric was manufactured using the obtained false twisted yarn, and the antistatic property was measured. Table 1 shows the results of the antistatic performance of the knitted fabric.
また、 以上のようにして得られた本発明の仮撚加工糸を用い、 無撚、 無糊でウォータージ-ッ トルームにて製織し目付 1 3 5 g / m 2の平織 物とした。 この際、 製織性は良好で製織時の断糸は皆無でスムーズで あった。 製織後、 該平織物を、 液流染色機を用いて沸騰水で 2 0分間リ ラックス処理し、 引き続きプリセッ ト処理を行った後、 3 . 5重量％の 水酸化ナトリ ウム水溶液中、 沸騰温度でアルカリ減量処理 （減量率 2 0 % ) を行った。 さらに、 染色、 ファイナルセット処理を行い、 ポリエ ステル仮 加工糸からなる布帛とした。 ' Further, using the false twisted yarn of the present invention obtained as described above, weaving was performed in a water jet room without twisting and without glue to obtain a plain weave with a basis weight of 1 35 g / m 2 . At this time, the weaving property was good and there was no yarn breakage during weaving and it was smooth. After weaving, the plain fabric was subjected to a relaxation treatment with boiling water for 20 minutes using a liquid dyeing machine, followed by a preset treatment, followed by a boiling temperature in a 3.5% by weight aqueous sodium hydroxide solution. The alkali weight loss treatment (weight loss rate 20%) was performed. Furthermore, dyeing and final setting were performed to obtain a fabric made of polyester temporary processed yarn. '
得られた布帛の官能評価.を実施したところ、 非常に深みのある、 かつ 高級感を有し、 ソフ トでかつ良好なふく らみを呈したスパンライク風合 のものであった （実施例 1〜3 ) 。  When the sensory evaluation of the obtained fabric was carried out, it was a spun-like texture that had a very deep, high-class feel, soft and good swell (Examples) 1-3).
また、 比較のため、 本発明の条件外で製造したポリエステル仮撚加工 糸を同様の布帛として評価した （比較例 1〜5 ) 。  For comparison, polyester false twisted yarns manufactured outside the conditions of the present invention were evaluated as similar fabrics (Comparative Examples 1 to 5).
実施例 1〜 3及び比較例 1〜 5の実験結果をまとめて以下の表 1に示 す。 なお、 表 1中の制電剤 （a ) ( b ) の具体的組成は次の通りである。 制電剤 （a ) ：水不溶性ポリオキシエチレン系ポリエーテル ' 制電剤 （b ) ： ドデシルベンゼンスルホン酸ナトリ ウム、 （それぞれ 表 1中の数値は、 芳香族ポリエステル 1 0 0重量部に対する重量部を表 わす。 ） 表 1 魏例 雞例 難例 m 比棚 The experimental results of Examples 1 to 3 and Comparative Examples 1 to 5 are summarized in Table 1 below. The specific composition of antistatic agents (a) and (b) in Table 1 is as follows. Antistatic agent (a): Water-insoluble polyoxyethylene-based polyether 'Antistatic agent (b): Sodium dodecylbenzenesulfonate, (The values in Table 1 are parts by weight relative to 100 parts by weight of the aromatic polyester. ) Table 1 魏 Examples 雞 Examples Difficult Examples m Ratio shelf
1 2 3 1 2 3 4 5 mmi (a) 4 4 4 4 0 0 4 4 制翻 ω 2 2 2 0 2 · 0 2 2 制電剤の (a), (b) (a), (b) (a), (b) (a) (b) (a), (b) (a), (b)  1 2 3 1 2 3 4 5 mmi (a) 4 4 4 4 0 0 4 4 Damping ω 2 2 2 0 2 0 2 2 Antistatic agent (a), (b) (a), (b) (a), (b) (a) (b) (a), (b) (a), (b)
4m- 有無- とも有 とも有 とも有 のみ のみ ,とも有 とも有 折率 0.035 0.02 0.05 0.03 0.03 0.03 0.015 0.055 糸力糸]  4m- Existence- With / Without With / Without only With / Without rate 0.035 0.02 0.05 0.03 0.03 0.03 0.015 0.055 Yarn force yarn]
3000 2000 4500 2800 2800 2800 1500 5000 W分）  3000 2000 4500 2800 2800 2800 1500 5000 W)
延伸僻 赔) 1.8 2.4 1.4 2.0 2.0 2.0 2.5 1.3 騰率 （％) 15 11 19 15 13 17 10 18 帯電性纖 Stretching 赔 赔) 1.8 2.4 1.4 2.0 2.0 2.0 2.5 1.3 Rising rate (%) 15 11 19 15 13 17 10 18
Α法（秒） 15 30 15 75 105 150 70 78 Method (sec) 15 30 15 75 105 150 70 78
B法（V) 1000 1100 800 2800 1850 3200 2100 2000 風合、ソフト感 Method B (V) 1000 1100 800 2800 1850 3200 2100 2000 Texture, soft feeling
1 1 1 3 3 3 3 3 (ランク）  1 1 1 3 3 3 3 3 (rank)
紡糸断糸 Spun yarn
3 5 7 8 98 6 235 125 (回/日）  3 5 7 8 98 6 235 125 (times / day)
延伸 iW糸 Drawn iW yarn
3 6 9 19 89 6 432 112 (回/日）  3 6 9 19 89 6 432 112 (times / day)
翻 (ケ ,104m) 3 5 7 48 285 15 321 548 加 *艇 Translation (Ke, 10 4 m) 3 5 7 48 285 15 321 548 pressure * boat
3.8 3.4 3.8 3.5 2.3 3,8 3.0 2.3 (cN/dtex)  3.8 3.4 3.8 3.5 2.3 3,8 3.0 2.3 (cN / dtex)
加 *伸度 (%) 26 21 24 25 16 28 14 15 実施例 4〜 6、 比較例 6〜 7 * Elongation (%) 26 21 24 25 16 28 14 15 Examples 4-6, Comparative Examples 6-7
実施例 2で得られたポリエステル未延伸糸を表 2に示す条件で延伸仮 撚加工を 施し、 表 2に示す物性のポリエステル仮撚加工糸を得た。 こ の時の延伸仮撚断糸及び毛羽発生状況を表 2に示す。 そして、 これらの ポリ ステル仮撚加工糸を前述の方法でその品位を評価し、 表 2に示す 結果を得た。 The polyester undrawn yarn obtained in Example 2 was subjected to drawn false twisting under the conditions shown in Table 2, and polyester false twisted yarn having physical properties shown in Table 2 was obtained. Table 2 shows the stretched false twisted yarn and the occurrence of fluff. Then, the quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 2 were obtained.
表 2 実施例 実施例 実施例 比較例 比較例 4 5 6 6 7 最下段ディスク Table 2 Example Example Example Comparative Example Comparative Example 4 5 6 6 7 Bottom disc
1.5 2.5 0.5 2.7 0.3 接触長 (mm)  1.5 2.5 0.5 2.7 0.3 Contact length (mm)
紡糸断糸 Spun yarn
3 3 6 3 51 (回/曰）  3 3 6 3 51 (times / 曰)
延伸仮撚断糸 Drawn false twisted yarn
4 5 7 51 93 (回/日)  4 5 7 51 93 (times / day)
加工糸毛羽 Processed yarn
3 5 8 48 151 (ケ 1 04m) 3 5 8 48 151 (K 1 0 4 m)
製織性、 停台 Weaving, stopping
2 2 3 28 63 (回/日）  2 2 3 28 63 (times / day)
捲縮率 Crimp rate
14 15 16 17 15 (%)  14 15 16 17 15 (%)
仮撚加工糸強度 False twisted yarn strength
3.3 3.4 3.0 2.8 2.4 (cN/dtex)  3.3 3.4 3.0 2.8 2.4 (cN / dtex)
仮撚加工糸伸度 False twisting yarn elongation
22 23 21 18 12 (%)  22 23 21 18 12 (%)
風合 · ソフ ト感 -Texture · Softness-
1 1 1 3 3 (ランク） 1 1 1 3 3 (rank)
制電性 A法 Antistatic A method
15 28 23 58 51 (秒）  15 28 23 58 51 (seconds)
制電性 B法 Antistatic B method
1100 1090 1250 1800 1900 (V)  1100 1090 1250 1800 1900 (V)
備 考 工程不調 工程不調 実施例 7〜 9、 比較例 8〜： I 0 Remarks Process failure Process failure Examples 7 to 9, Comparative Example 8 to: I 0
実施例 2で得られたポリエステル未延伸糸を、 仮撚加工における最下 流ディスク接触長さ、 当該ディスク直径のすぐ上流側ディスクの直径 (Standard) に対する比 （S t対比％) を変更して、 表 3に示す条件で 延伸仮撚加工を実施し、 表 3に示す物性のポリエステル仮撚加工糸を得 た。 この時の延伸仮撚断糸及び毛羽発生状況を表 3に示す。 これらのポ リエステル仮撚加工糸を前述の方法でその品位を評価し、 表 3に示す結 果を得た。 ' The unstretched polyester yarn obtained in Example 2 was subjected to a change in the lowermost disk contact length in false twisting and the ratio of the disk diameter to the diameter of the upstream disk (Standard) (% compared to St). Stretch false twisting was performed under the conditions shown in Table 3, and polyester false twisted yarns having physical properties shown in Table 3 were obtained. Table 3 shows the stretched false twisted yarn and fluff generation at this time. The quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 3 were obtained. '
表 3 Table 3
Figure imgf000041_0001
Figure imgf000041_0001
[注] 表 3中の 「St 対比」 は、 最下段ディスク直径の、 すぐ上流側の ディスクの直径  [Note] “St Contrast” in Table 3 is the diameter of the disk on the upstream side of the diameter of the lowermost disk
(Standard) に対する比率 （％) を示す。 また、 加工糸の 「St/EL%」 は、 それぞれ、 S tが破断強度 （cNZ d t e X ) 、 E Lが破断伸度 （％) を 示している。 Indicates the ratio (%) to (Standard). In the “St / EL%” of the processed yarn, St indicates the breaking strength (cNZ dte X) and EL indicates the breaking elongation (%).
実施例 1 0〜： I 3、 比較例 1 1〜： I 4 Example 1 0 ~: I 3 Comparative Example 1 1 ~: I 4
実施例 2で得られたポリエステル未延伸糸を、 仮撚数 X Y 1 Z 2 {た だし、 Yは仮撚加工糸繊度 （d t e X ) } 及び仮撚加工温度を表 4に示 す条件とする以外は、 実施例 2と同じ条件で延伸仮撚加工を実施し、 表 4に示すポリエステル仮撚加工糸を得た。 この時の延伸仮撚断糸及び毛 羽発生状況を表 4に示す。 また、 これらのポリエステル仮撚加工糸を前 述の方法で、 その品位を評価し、 表 4に示す結果を得た。 The polyester undrawn yarn obtained in Example 2 was prepared under the conditions shown in Table 4 for the false twist number XY 1 Z 2 {where Y is the false twist yarn fineness (dte X)} and false twisting temperature. Except for the above, a false false twisting process was performed under the same conditions as in Example 2 to obtain polyester false twisted yarns shown in Table 4. Table 4 shows the stretched false twisted yarn and the occurrence of fluff. In addition, the quality of these polyester false twisted yarns was evaluated by the method described above, and the results shown in Table 4 were obtained.
表 4 Table 4
Figure imgf000043_0001
Figure imgf000043_0001
[注] .☆ 風合い硬い （ガサツキ感あり） [Note]. ☆ Hard texture (with a feeling of roughness)
実施例 1 4〜： I 6、 比較例 1 5〜： 1 7 Example 1 4 ~: I 6, Comparative Example 1 5 ~: 1 7
実施例 1の方法により得られた、 水不溶性ポリオキシエチレン系ポリ エーテル {制電剤 （a ) } 及びドデシルベンゼンスルホン酸ナトリウム {制電剤 （b) } を含有する乾燥ポリマーを A 1 とする。  A 1 is a dry polymer containing the water-insoluble polyoxyethylene-based polyether {antistatic agent (a)} and sodium dodecylbenzenesulfonate {antistatic agent (b)} obtained by the method of Example 1. .
一方、 固有粘度が 0. 64で、 軟化点 2 5 8°Cのポリエチレンテレフ タレート （P ET) に各々表 5に示す量のポリスチレン系ポリマー （P S AS TM - D 1 2 3 8に準拠したメルトインデッタス （温度 300°C、 荷重 2. 1 6 k g f で測定） が 1 0 gノ 1 0分） 又はポリメチルメタァ クリ レート系ポリマー （PMMA ： A S TM-D 1 2 38に準拠したメ ノレトインデックス （温度 2 30°C、 荷重 3. 8 k g f で測定） を表 5に 示す量で配合したポリエチレンテレフタレートのペレツ トを調製し、 常 法で乾燥した。 （これを乾燥ポリマー B 1 とする。 ）  On the other hand, polyethylene terephthalate (PET) with an intrinsic viscosity of 0.64 and a softening point of 2 5 8 ° C is a polystyrene polymer (PS AS TM-D 1 2 3 8 Indetas (measured at 300 ° C, load 2.16 kgf) is 10 g, 10 min) or polymethyl methacrylate polymer (PMMA: Menoto index according to AS TM-D 1 2 38 (temperature) 2) Measured at 30 ° C under a load of 3.8 kgf) and prepared polyethylene terephthalate pellets in the amounts shown in Table 5 and dried in the usual way (this is designated as dry polymer B1).
上記の乾燥ポリマー A 1及び乾燥ポリマー B 1を 2基のスクリユー押 出機を装備した複合紡糸設備にて各々常法で溶融し、 スピンプロックを 通して、 複合紡糸スピンパックに導入した。 ポリマー A 1は、 該スピン パックに組み込まれた円形吐出孔を 36個穿設した紡糸口金から、 ポリ マー B 1は円形吐出孔を 4 8個穿設した紡糸口金よりそれぞれ吐出した。 引き続き、 吐出された 2群のポリマー流を、 通常のクロスフロー型紡糸 筒からの冷却風で冷却 · 固化し、 紡糸油剤を付与しつつ一本の糸条とし て集束し、 3 2 0 0 mZ分の速度で引き取り、 2 8 O d t e x/8 4 フイラメントのポリエステル未延伸糸を得た （実施例 1 4〜 1 6) 。 また、 比較のため、 本発明の条件外で同様の実験を行った （比較例 1 5〜 1 7) 。 表 5から明らかなごとく、 ポリスチレン （P S) の添加量 が 0. 5重量％に満たない比較例 1 5においては、 2'つの未延伸糸状群 の伸度差が 7 0%未満となり、 得られた仮撚加工糸の糸条群 Aと糸条群 Bとの糸長差が 1 0%未満となった。 .  The above-mentioned dry polymer A1 and dry polymer B1 were each melted in a conventional manner in a composite spinning facility equipped with two screw extruders, and introduced into a composite spinning spin pack through a spin block. Polymer A1 was discharged from a spinneret having 36 circular discharge holes incorporated in the spin pack, and polymer B1 was discharged from a spinneret having 48 circular discharge holes. Subsequently, the two groups of discharged polymer streams are cooled and solidified with cooling air from a normal cross-flow type spinning tube, and are converged as a single thread while applying spinning oil. The polyester undrawn yarn of 2 8 O dtex / 8 4 filament was obtained (Examples 14 to 16). For comparison, similar experiments were performed outside the conditions of the present invention (Comparative Examples 15 to 17). As is apparent from Table 5, in Comparative Example 15 where the amount of polystyrene (PS) added is less than 0.5% by weight, the difference in elongation between the two undrawn filaments was less than 70%, and Further, the difference in yarn length between the yarn group A and the yarn group B of the false twisted yarn was less than 10%. .
溶融紡糸時の工程安定性は表 5に示すとおりであり、 ポリスチレンの 添加量が 3. 0重量％を超える比較例 2においては、 紡糸工程で断糸が 多発した。 それぞれ得られたポリエステル未延伸糸を、 帝人製機製 2 1 6錘建 H 丁 5— 1 5 に掛け、 図 1の如く、 前段及び後段で、 それぞれ孔径 1. 8 mmの圧空吹き出し孔を有するィンターレースノズルを通過させつつ 6 0 n LZ分の流量で交絡度が 50個 mとなるように空気交絡を施し、 延伸倍率 1. 6 0、 第 1段ヒーター （非接触タイプ） 温度 2 50°Cの条 件に設定し、 直径 6 0mm、 厚み 9mmのポリ ウレタンディスクを仮撚 ディスクとして、 走行角 4 3度で仮撚数 X Y1/2 [ただし、 Υ=複合仮 撚加工糸繊度 （d t e x) ] が 26 0 00近傍となるように延伸同時仮 撚加工を行い、 速度 80 Om/分でチーズ形状に巻き取り、 1 8 0 d t e xZ8 4フィラメント （平均単糸繊度 2. l d t e x) のポリエステ ル複合仮撚加工糸を得た。 このポリエステル複合仮撚加工糸を構成する 芯部はポリマー A 1からなる低伸度側糸条群 A ( 9 0 d t e X / 3 6 フィラメント） であり、 鞘部はポリマー B 1からなる高伸度側糸条群 B (9 0 d t e xZ4 8フィラメント） であった。 The process stability during melt spinning is as shown in Table 5. In Comparative Example 2 where the amount of polystyrene added exceeds 3.0% by weight, many yarn breaks occurred during the spinning process. Each unstretched polyester yarn obtained was applied to Teijin Seiki's 2 1 6-storied H 5-5-15, and as shown in Fig. 1, the front and rear stages had pressure blowout holes with a hole diameter of 1.8 mm. The air entanglement is applied so that the entanglement degree is 50 m at a flow rate of 60 n LZ while passing through the interlace nozzle, the draw ratio is 1.60, the first stage heater (non-contact type) temperature 2 50 ° Set to the conditions of C, a polyurethane disk with a diameter of 60 mm and a thickness of 9 mm was used as a false twist disk, and the running angle was 43 degrees and the false twist number was XY 1/2 [However, Υ = composite false twisted yarn fineness )] Is drawn and twisted in a cheese shape at a speed of 80 Om / min so as to be in the vicinity of 2600. Polyester with 1 80 dte xZ8 4 filaments (average single yarn fineness 2. ldtex) A composite false twisted yarn was obtained. The core of this polyester composite false twisted yarn is the low elongation side yarn group A (90 dte X / 3 6 filaments) made of polymer A 1 and the sheath is made of polymer B 1 Side yarn group B (90 0 dte xZ4 8 filaments).
これらのポリエステル複合仮撚加工糸を後述の方法で織物となし、 そ の品位を評価した。 その結果を表 5に示す。 この表 5から明らかなごと く、 比較例 1 5におけるポリスチレンの添加量が 0. 5重量％に満たな い織物は、 硬い風合いのものとなった。 ポリスチレンの添加量が 3. 0 重量％を超える比較例 2においては、 延伸仮撚断糸及び毛羽の発生が多 かった。 .また、 得られた複合仮撚加工糸を用いてメ リヤス編地を製造し、 制電性を測定した。 制電性能の結果も表 5に示す。  These polyester composite false twisted yarns were made into woven fabrics by the method described later, and their quality was evaluated. The results are shown in Table 5. As is clear from Table 5, the woven fabric in which the amount of polystyrene added in Comparative Example 15 was less than 0.5% by weight had a hard texture. In Comparative Example 2 in which the amount of polystyrene added exceeded 3.0% by weight, stretched false twisted yarns and fluff were frequently generated. Also, a knitted fabric was manufactured using the obtained composite false twisted yarn, and the antistatic property was measured. Table 5 also shows the results of antistatic performance.
次に、 上記の複合仮撚加工糸を、 液流染色機を用いて沸騰水で 20分 間リラックス処理し、 引き続きプリセッ ト処理を行った後、 さらに、 染 色、 ファイナルセッ ト処理を行い、 ポリエステル複合仮撚加工糸からな る布帛とした。  Next, the composite false twisted yarn was relaxed with boiling water for 20 minutes using a liquid dyeing machine, followed by a preset treatment, followed by further dyeing and final set treatment. A fabric made of polyester composite false twisted yarn was used.
なお、 本発明による複合仮撚加工糸の製織工程において、 無撚、 無糊 でウォータージェッ トルームにより平織物としたところ、 製織性は良好 で、 断糸は無くスムースであった。  In the weaving process of the composite false-twisted yarn according to the present invention, when plain fabric was formed by water jet room without twisting and without glue, weaving property was good and there was no breakage and smoothness.
また、 製織後、 該織物を、 液流染色機を用いて沸騰水で 20分間リラッ クス処理し、 引き続きプリセッ ト処理を行った後、 3. 5重量％の水酸 化ナトリ ゥム水溶液にて沸騰温度でアル力リ減量処理 （減量率 20%) を行った。 さらに、 染色、 ファイナルセッ ト処理を行い、 ポリエステル 複合仮撚加工糸からなる布帛とした。 In addition, after weaving, the fabric is relaxed with boiling water for 20 minutes using a liquid dyeing machine. After the pre-treatment, the Al force was reduced with a 3.5% by weight aqueous sodium hydroxide solution at the boiling temperature (weight reduction rate 20%). Furthermore, dyeing and final set treatment were performed to obtain a fabric made of polyester composite false twisted yarn.
本発明により得られた布帛 （実施例 1 4〜 1 6) の官能評価を実施し たところ、 非常に深みのある、 かつ高級感を有し、 ソフトでかつ良好な ふく らみを呈したスパンライク風合のものであった。 When the sensory evaluation of the fabrics obtained in accordance with the present invention (Examples 14 to 16) was carried out, the span had a very deep, high-class feeling, soft and good swell. It was like-like.
表 5 Table 5
Figure imgf000047_0001
Figure imgf000047_0001
* 1. P S : ポリ スチレン系ポリマー  * 1. P S: Polystyrene polymer
* 2. PMMA ： ポリメチルメタアタ リ レート ポリマ一  * 2. PMMA: Polymethylmethacrylate polymer
* 3 - 制電剤 ： （ a ) 水不溶性ポリオキシエチレン系ポリエーテル 実施例 1 7〜： 1 9、 比較例 1 8〜： I 9 * 3-Antistatic agent: (a) Water-insoluble polyoxyethylene-based polyether Example 1 7 ~: 1 9 Comparative Example 1 8 ~: I 9
実施例 1 5で得られたポリエステル未延伸糸を、 表 6に示す仮撚条件 で延伸仮撚加工を実施し、 表 6.に示す物性のポリエステル複合仮撚加工 糸を得た。 このときの延伸仮撚断糸及び毛羽発生状況を表 6に示す。 こ れらのポリエステル複合仮撚加工糸を前述の方法でその品位を評価し、 表 6に示す結果を得た。 この際、 芯糸 （制電成分） を包み込み、 変形を 少なくすることで、 毛羽を出さないようにすることが制電性の面からも 肝要であることがわかった。 The polyester undrawn yarn obtained in Example 15 was subjected to drawn false twisting under the false twisting conditions shown in Table 6 to obtain polyester composite false twisted yarns having physical properties shown in Table 6. Table 6 shows the stretched false twisted yarn and the occurrence of fluff. The quality of these polyester composite false twisted yarns was evaluated by the method described above, and the results shown in Table 6 were obtained. At this time, it was found that it is important from the viewpoint of anti-static properties to wrap the core yarn (anti-static component) and reduce the deformation to prevent the fluff from coming out.
表 6 魏例 17 雄例 18 魏例 19 比 Table 6 Example 17 Male 18 Example 19 Ratio
最下^'イスク Bottom ^ 'Isuku
1. 5 2. 5 0. 5 2. 7 0. 3 1. 5 2. 5 0. 5 2. 7 0. 3
(mm) (mm)
紡糸断糸 （回,日） 3 3 6 3 51 糸 （回 Z日） 4 5 7 51 93 加 *翻 Spinning yarn (times, days) 3 3 6 3 51 Yarn (times Z days) 4 5 7 51 93
3 5 8 48 151 (ケ Zl 04m) 3 5 8 48 151 (K Zl 0 4 m)
»|4、 停台回/日 2 2 3 28 63 腿率 (%) 4.· 0 5. 1 6. 3 7. 6 5. 1  »| 4, Stop times / day 2 2 3 28 63 Thigh rate (%) 4. · 0 5. 1 6. 3 7. 6 5. 1
2. 3 2. 4 2. 0 1. 8 1. 42. 3 2. 4 2. 0 1. 8 1. 4
(cN/d t e x) (cN / d t e x)
Mra *伸度 % 22 23 21 18 12 風合 ソフト感  Mra * Elongation% 22 23 21 18 12 Feel Soft
1 1 1 3 3 (ランク）  1 1 1 3 3 (rank)
風合 スパン感 Feeling span feeling
1 1 1 3 3 (ランク）  1 1 1 3 3 (rank)
制電性 A法 （秒） 25 38 33 58 51 制電性 B法 （V) 1100 1090 1250 1800 1900 備 考 ^なし
Figure imgf000049_0001
严^なし 工程本調 i程不調 Antistatic A method (sec) 25 38 33 58 51 Antistatic B method (V) 1100 1090 1250 1800 1900 Remarks ^ None
Figure imgf000049_0001
严 ^ None
実施例 2 0〜 2 2、 比較例 2 0〜 2 2 Example 2 0-2 2 2, Comparative Example 2 0-2 2
実施例 1 4において、 最下流のディスクの糸条接触長さ、 ディスク径 のすぐ上流側のディスクの直径 （Standard) との比 （S t対比％) を変 更して、 同様の実験を行った。 その結果を表 7に示す。 In Example 14, the same experiment was performed by changing the thread contact length of the most downstream disk and the ratio of the disk diameter to the diameter (Standard) of the disk immediately upstream of the disk (% of St). It was. The results are shown in Table 7.
表 7 Table 7
Figure imgf000051_0001
Figure imgf000051_0001
[注] 表 3中の 「St 対比」 は、 最下段ディスク直径の.、 すぐ上流側のディス クの直径 （Standard) に対する比率 （％) を示す。 また、 「St/EL%」 は、 それぞ れ、 S tが破断強度 （cN/dtex) 、 E Lが破断伸度 （％) を示す。 [Note] “St contrast” in Table 3 indicates the ratio (%) of the diameter of the lowermost disk to the diameter (Standard) of the disk immediately upstream. In “St / EL%”, St is the breaking strength (cN / dtex) and EL is the breaking elongation (%).
実施例 2 3〜 2 6、 比較例 2 3〜 2 6 Examples 2 3 to 2 6, Comparative Examples 2 3 to 2 6
実施例 1 5で得られたポリエステル未延伸糸を、 仮撚数及び仮撚温度 を表 8に示す条件とする以外は、 実施例 2と同じ延伸仮撚条件で延伸仮 撚加工を実施し、 表 8に示すポリエステル複合仮撚加工糸を得た。 この 時の延伸仮撚断糸及び毛羽発生状況を表 8に示す。 また、 これらのポリ エステル複合仮撚加工糸を前述の方法で、 その品位を評価し、 表 8に示 す結果を得た。 なお、 表 8に示す 「撚数」 は、 撚数 X ( Y ) 1 / 2の値で あり、 複合仮撚加工糸の総繊度 （Y ) はいずれも 1 8 0 d t e xであつ た。 これらの実験でも、 芯糸制電成分を包み込み、 変形を少なくするこ とで、 毛羽を出さないようにすることが制電性の面からも肝要であるこ とが確認された。 ， The polyester undrawn yarn obtained in Example 15 was subjected to drawing false twisting under the same drawing false twisting conditions as in Example 2 except that the number of false twists and the false twisting temperature were as shown in Table 8. Polyester composite false twisted yarns shown in Table 8 were obtained. Table 8 shows the stretched false twisted yarn and the occurrence of fluff. The quality of these polyester composite false twisted yarns was evaluated by the method described above, and the results shown in Table 8 were obtained. The “twist number” shown in Table 8 is the value of the twist number X (Y) 1/2 , and the total fineness (Y) of the composite false twisted yarn was 1800 dtex. In these experiments as well, it was confirmed that it is important from the viewpoint of anti-static properties to wrap the core yarn anti-static component and reduce deformation to prevent fluff from coming out. ,
表 8. Table 8.
Figure imgf000053_0001
Figure imgf000053_0001
[注] 〇 ： 良好、 ☆ ：風合い硬い （ガサツキ感） 、 X ： 不良 [Note] ○: Good, ☆: Hard texture (Gassiness), X: Defect
★ ：バルキー不足 ★: Insufficient bulky
産業上の利用可能性 Industrial applicability
本発明のポリエステル仮撚加工糸は、 上記のような制電剤が含まれて いるため、 優れた制電性が発現される。 すなわち、 本発明では、 仮撚加 ェ時のフィラメントのセクション変形、 毛羽を発生させることなく、 高 速で安定して仮撚することで、 制電剤のマイグレーションが起こりにく くなるので、 予想外に制電性が発揮される。  Since the polyester false twisted yarn of the present invention contains the above antistatic agent, excellent antistatic properties are exhibited. In other words, in the present invention, the antistatic agent migration is less likely to occur by stable false twisting at high speed without generating filament section deformation and fuzz during false twisting. Antistatic performance is exhibited outside.
この効果は、 高圧染色をしたときに顕著に現れ、 耐熱性に強く実用的 である。 さらに、 学生服、 ユニフォーム等の用途では、 耐光性耐久性が 良いという利点もある。 すなわち、 本発明による仮撚加工糸の利点は、 後工程における高圧染色を経て顕著に現れ、 耐熱性に強く実用的である ため、 学生服、 ユニフォーム等にしたとき、 耐光性が強いという利点が ある。  This effect is prominent when high-pressure dyeing is performed, and is highly resistant to heat and practical. In addition, there is an advantage that light resistance and durability are good in applications such as school uniforms and uniforms. In other words, the advantage of the false twisted yarn according to the present invention is noticeable after high-pressure dyeing in the subsequent process, and is strong and practical in heat resistance. Therefore, when used in school uniforms, uniforms, etc., it has the advantage of high light resistance. is there.
その結果、 特に、 学生服、 ユニフォーム、 防塵衣、 等の静電気を抑え る用途向けとして、 非常に良好な嵩高性、 スパン感等を有するとともに、 後工程での取り扱い性にすぐれたものとなるため、 制電性に優れたスパ ンライクなポリエステル布帛とすることができるポリエステル仮撚加工 糸となる。 しかも、 本発明の製造方法によれば、 かかる制電性仮撚加工 糸を、 生産性よく安定して製造することができる。  As a result, it has very good bulkiness and span feeling, especially for school clothes, uniforms, dust-proof clothing, etc. A polyester false twisted yarn that can be made into a span-like polyester fabric excellent in antistatic properties. Moreover, according to the production method of the present invention, such antistatic false twisted yarn can be produced stably with high productivity.
また、 本発明のポリエステル複合仮撚加工糸は、 芯部糸条 （A ) に上 記のような 2種の制電剤 （a ) 及び （b ) を含有しているため、 優れた 制電性が発現する。 すなわち、 複合仮撚加工糸において、 かかる芯部糸 条 （A ) を含む芯鞘構造が糸長方向に安定して形成されるため、 該加工 糸にあっては予想外に制電性が発揮される。 この効果は、 織物とした場 合、 撚りの影響を受けないので、 特に顕著に現れる。  In addition, the polyester composite false twisted yarn of the present invention contains two antistatic agents (a) and (b) as described above in the core yarn (A). Sex is expressed. That is, in the composite false twisted yarn, since the core-sheath structure including the core yarn (A) is stably formed in the yarn length direction, the antistatic property is unexpectedly exhibited in the processed yarn. Is done. This effect is particularly noticeable in the case of a woven fabric because it is not affected by twisting.
また、 制電性を発揮する芯部糸条 （A ) (以下、 単に 「芯糸」 とい う） が上記鞘部糸条 （B ) (以下、 単に 「鞘糸」 という） で包み込まれ ているので、 仮撚加工時には制電成分を包み込み、 変形を少なくするこ とで加工時に毛羽を出ないようにしており、 このことが良好な制電性の 維持、 仮撚加工での毛羽発生の減少、 生産性向上、 さらには、 織物とし た場合における洗濯耐久性に優れる要因となる。 その結果、 本発明では、 特に、 学生服、 ユニフォーム、 防塵衣等の静亀気を抑える必要の高い用 途向けとして、 非常に良好な嵩高性、 スパン感を有するとともに、 優れ た制電性にも優れたスパンライクなポリエステル布帛とすることができ、 しかも、 後工程での取り扱い性にもすぐれた、 ポリエステル複合仮撚加 ェ糸が提供される。 In addition, the core yarn (A) (hereinafter simply referred to as “core yarn”) that exhibits antistatic properties is wrapped in the sheath yarn (B) (hereinafter simply referred to as “sheath yarn”). Therefore, the antistatic component is wrapped during false twisting, and the deformation is reduced so that fluff does not come out during processing. This maintains good antistatic properties and reduces the occurrence of fluff during false twisting. , Improve productivity, and even fabric In this case, it becomes a factor of excellent washing durability. As a result, the present invention has a very good bulkiness and span feeling, and excellent anti-static properties, especially for applications where there is a high need to suppress static quirks such as school uniforms, uniforms, and dust proof clothing. In addition, a polyester composite false twisted yarn can be provided that can be made into an excellent spunlike polyester fabric and has excellent handleability in the subsequent process.

Claims

請求の範囲 The scope of the claims
1. 繰り返し単位の 7 5モル0 /0以上がエチレンテレフタレート単位から なり、 （a) ポリオキシアルキレン系ポリエーテル、 及び （b) 芳香族 ポリエステルとは実質的に非反応性の有機イオン性化合物を含有する芳 香族ポリエステル組成物から構成される制電性ポリエステルマルチフィ ラメントの仮撚加工糸であって、 該仮撚加工糸の帯電圧半減期が 60秒 以下であり、 かつ、 捲縮率が 1 0〜 20%であることを特徴とする制電 性ポリエステル仮撚加ェ糸。 1. consists repeating units of 7 5 mole 0/0 or ethylene terephthalate units, the (a) polyoxyalkylene polyethers, and (b) a substantially non-reactive organic ionic compound and an aromatic polyester A false twisted yarn of antistatic polyester multifilament composed of the aromatic polyester composition it contains, the false twisted yarn has a charged half-life of 60 seconds or less, and the crimp rate An antistatic polyester false twisted yarn characterized by having a 10 to 20%.
2. 芳香族ポリエステル 1 00重量部に対して、 （a) ポリオキシアル キレン系ポリエーテルが 0. 2〜30重量部、 及び （b) 芳香族ポリエ ステルとは実質的に非反応性の有機イオン性化合物が 0. 05〜： 1 0重 量部含有されている請求項 1記載の制電性ポリエステル仮撚加工糸。  2. To 100 parts by weight of aromatic polyester, (a) 0.2 to 30 parts by weight of polyoxyalkylene polyether, and (b) organic ionicity substantially non-reactive with aromatic polyester The antistatic polyester false twisted yarn according to claim 1, wherein the compound is contained in an amount of 0.05 to 10 parts by weight.
3. 総繊度が 5 0〜200 d t e xである請求項 1又は 2記載の制電性 ポリエステル仮撚加工糸。 3. The antistatic polyester false-twisted yarn according to claim 1 or 2, wherein the total fineness is from 50 to 200 dtex.
4. 繰り返し単位の 7 5モル％以上がエチレンテレフタレート単位から なり、 （a) ポリオキシアルキレン系ポリエーテル、 及び （b) 芳香族 ポリエステルとは実質的に非反応性の有機イオン性化合物を含有する芳 香族ポリエステル組成物を溶融紡糸して得た、 複屈折率が 0. 02〜0 . 0 5の未延伸糸条を、 下記 （ィ） 〜 （二） を同時に満足する条件で延 伸同時仮撚加工することを特徴とする制電性ポリエステル仮撚加工糸の 製造方法。  4. 75 mol% or more of repeating units are composed of ethylene terephthalate units, and contain (a) a polyoxyalkylene polyether, and (b) an organic ionic compound that is substantially non-reactive with aromatic polyesters. Unstretched yarns with birefringence of 0.02 to 0.05 obtained by melt spinning aromatic polyester compositions are stretched simultaneously under the following conditions (i) to (2) A method for producing antistatic polyester false twisted yarn, characterized by false twisting.
(ィ） 仮撚具として、 3軸フリ クションディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5 mmであり、 かつ、 該ディスクの径が 直上のディスク径の 90〜 9 8 %であるものを使用する  (Ii) As a false twister, it is a triaxial friction disc type. The material of the lowermost disc located at the untwisting part is ceramic, and the contact length between the disc and the running yarn is 2.5-0. Use a disk that is 5 mm and whose diameter is 90 to 98% of the diameter of the disk just above
(口） 仮撚加工温度を、 1 70°C〜 300°Cの温度とする  (Mouth) False twisting temperature: 1 70 ° C ~ 300 ° C
(ハ） 仮撚加工時の延伸倍率を 1. 4〜2. 4とする  (C) The draw ratio during false twisting is set to 1.4 to 2.4.
(二） 仮撚数 T (回ノ m) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5000ZY1/2≤T≤ 35000ZY1/2とする (2) The number of false twists T (turns m) is set to the fineness (Y dtex) of false twisted yarn. 1 5000ZY 1/2 ≤T≤ 35000ZY 1/2
5. 芳香族ポリエステル 1 00重量部に対して、 （a) ポリオキシアル キレン系ポリエーテルが 0. 2〜30重量部、 及び （b) 芳香族ポリエ 5. With respect to 100 parts by weight of aromatic polyester, (a) 0.2 to 30 parts by weight of polyoxyalkylene polyether, and (b) aromatic polyester
'ステルと実質的に非反応性の有機イオン性化合物が 0. 05〜 1 0重量 部含有されている請求項 4記載の制電性ポリエステル仮撚加工糸の製造 方法。 5. The process for producing an antistatic polyester false twisted yarn according to claim 4, wherein 0.05 to 10 parts by weight of an organic ionic compound substantially non-reactive with steal is contained.
6. 延伸同時仮撚加工される未延伸糸条に、 圧空による交絡処理を施す ことを特徴とする請求項 4又は 5記載の制電性ポリエステル仮燃加工糸 の製造方法。  6. The method for producing an antistatic polyester calcined yarn according to claim 4 or 5, wherein the unstretched yarn subjected to simultaneous false twisting is subjected to entanglement treatment by compressed air.
..
7. 芯部糸条 （A) 力 繰り返し単位の 5モル0 /0以上がエチレンテレ フタレート単位からなり、 （a) ポリオキシアルキレン系ポリエーテル 及び （b) ポリエステルとは実質的に非反応性の有機イオン性化合物と を含有する芳香族ポリエステル組成物から構成される制電性ポリエステ ルマルチフィラメントからなり、 鞘部糸条 （B) 力 ポリメチルメタァ クリ レート系ポリマー及びノ又はポリスチレン系ポリマーを 0. 5〜3 . 0重量％含有する芳香族ポリエステル組成物から構成されるポリエス テルマルチフィラメントからなる特殊複合仮撚加工糸であって、 該加工 糸の帯電摩擦圧が 2000 V以下、 捲縮率が 2〜8%であり、 かつ、 鞘 部糸条 （B) の平均糸長が芯部糸条 （A) の平均糸長より 10〜20% 長いことを特徴とする制電性特殊複合仮撚加工糸。 7. consists core yarn (A) Power repeated 5 mole 0/0 or ethyleneterephthalate phthalate units of the unit, substantially non-reactive with (a) polyoxyalkylene polyether and (b) a polyester It consists of an antistatic polyester multifilament composed of an aromatic polyester composition containing an organic ionic compound, and a sheath thread (B) force 0.5% of polymethyl methacrylate polymer and poly or polystyrene polymer. A special composite false twisted yarn composed of polyester multifilament composed of an aromatic polyester composition containing ˜3.0% by weight, wherein the charged frictional pressure of the processed yarn is 2000 V or less, and the crimp rate is 2 Antistatic special composite false twist processing characterized in that the average yarn length of the sheath yarn (B) is 10-20% longer than the average yarn length of the core yarn (A). yarn.
8. 芯部糸条 （A) 力 芳香族ポリエステル 1 00重量部に対して、 8. Core thread (A) Force Aromatic polyester 100 parts by weight
(a) ポリオキシアルキレン系ポリエーテルが 0. 2〜30重量部、 及 び （b) 芳香族ポリエステルとは実質的に非反応性の有機イオン性化合 物が 0. 05〜 1 0重量部含有された芳香族ポリエステル組成物から構 成されている請求項 1記載の制電性特殊複合仮撚加工糸。 (a) 0.2 to 30 parts by weight of polyoxyalkylene polyether, and (b) 0.05 to 10 parts by weight of organic ionic compound substantially non-reactive with aromatic polyester 2. The antistatic special composite false twisted yarn according to claim 1, wherein the antistatic special composite false twisted yarn is composed of a prepared aromatic polyester composition.
9. ポリエステルマルチフィラメントを延伸仮撚加工するに際し、 加工 用原糸と して、 （ a ) ポリオキシアルキレン系ポリエーテル、 及び 9. When drawing false-twisting of polyester multifilament, as a processing yarn, (a) a polyoxyalkylene polyether, and
(b) ポリエステルとは実質的に非反応性の有機イオン性化合物とを含 有してなる未延伸の制電性ポリエステマルチフィラメント （Α' ) と、 ポリエステルマルチフィラメントにポリメチルメタァク リ レート系ポリ マー及びノ又はポリスチレン系ポリマーを重 *基準で 0. 5〜3. 0重 量％含有する未延伸のポリエステルマルチフィラメント （B， ） とを合 糸し、 下記 （ 1 ) 〜 （4) を全て満足する条件で延伸同時仮撚加工する ことを特徴とする制電性特殊複合仮撚加工糸の製造方法。 (b) an unstretched antistatic polyester multifilament (Α ′) comprising a polyester and a substantially non-reactive organic ionic compound; The polyester multifilament is combined with an unstretched polyester multifilament (B,) containing 0.5 to 3.0% by weight of polymethyl methacrylate polymer and polystyrene or polymer based on the weight. A method for producing antistatic special composite false twisted yarn, characterized in that it is drawn and simultaneously false twisted under conditions satisfying all of the following (1) to (4):
( 1 ) 仮撚直前に空気交絡処理を施し、 30個以上 Zmの交絡を付与す る  (1) Apply air entanglement immediately before false twisting and give 30 or more Zm entanglement
(2) 仮撚具として、 3軸フリクションディスクタイプで、 解撚部に位 置する最下段のディスクの材質がセラミックであり、 該ディスクと走行 糸条との接触長が 2. 5〜0. 5 mmであり、 かつ、 該ディスクの径が 直上のディスク径の 90〜9 8%であるものを使用する  (2) As a false twister, it is a triaxial friction disc type, and the material of the lowermost disc located at the untwisting part is ceramic, and the contact length between the disc and the running yarn is 2.5-0. Use a disk that is 5 mm and whose diameter is 90 to 98% of the diameter of the disk just above.
(3) 仮撚加工温度を、 1 70°C〜 30ひでの温度とする  (3) The false twisting temperature is 1 70 ° C to 30
(4) 仮撚数 T (回/ m) を、 仮撚加工糸の繊度 （Y dtex) に対し、 1 5000/Y 1/2≤ T≤ 3 5000 Y 1/2とする (4) Set the false twist number T (times / m) to 1 5000 / Y 1/2 ≤ T≤ 3 5000 Y 1/2 with respect to the fineness (Y dtex) of the false twisted yarn.
1 0. 未延伸の制電性ポリエステルマルチフィラメント （A， ) 、 芳 香族ポリエステル 1 00重量部に対して、 （a) ポリオキシアルキレン 系ポリエーテルが 0. 2〜3 0重量部、 及び （b) 芳香族ポリエステル とは実質的に非反応性の有機イオン性化合物が 0. 0 5〜 1 0重量部含 有された芳香族ポリエステル組成物から構成されている請求項 9記載の 制電性特殊複合仮撚加工糸の製造方法。 1 0. Unstretched antistatic polyester multifilament (A,), 100 parts by weight of aromatic polyester, (a) 0.2 to 30 parts by weight of polyoxyalkylene polyether, and ( 10. The antistatic property according to claim 9, wherein the antistatic property is composed of an aromatic polyester composition containing 0.05 to 10 parts by weight of an organic ionic compound substantially non-reactive with the aromatic polyester. A method for producing special composite false twisted yarn.
PCT/JP2007/064128 2006-07-14 2007-07-11 Antistatic polyester false twist yarn, process for producing the same, and antistatic special composite false twist yarn including the antistatic polyester false twist yarn WO2008007803A1 (en)

Priority Applications (4)

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EP07768434A EP2042626A4 (en) 2006-07-14 2007-07-11 Antistatic polyester false twist yarn, process for producing the same, and antistatic special composite false twist yarn including the antistatic polyester false twist yarn
US12/307,895 US20090308048A1 (en) 2006-07-14 2007-07-11 Antistatic polyester false twisted yarn, process for its production, and antistatic special conjugated false twisted yarn comprising antistatic polyester false twisted yarn
CN2007800267148A CN101490322B (en) 2006-07-14 2007-07-11 Antistatic polyester false twist yarn, process for producing the same, and antistatic special composite false twist yarn including the antistatic polyester false twist yarn
CA002658091A CA2658091A1 (en) 2006-07-14 2007-07-11 Antistatic polyester false twisted yarn, process for its production, and antistatic special conjugated false twisted yarn comprising antistatic polyester false twisted yarn

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JP2006194238A JP4818004B2 (en) 2006-07-14 2006-07-14 Antistatic polyester false twisted yarn and method for producing the same
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