EP1094137A1 - Polyesterfasern mit verminderter Pillingneigung sowie Verfahren zu ihrer Herstellung - Google Patents
Polyesterfasern mit verminderter Pillingneigung sowie Verfahren zu ihrer Herstellung Download PDFInfo
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- EP1094137A1 EP1094137A1 EP00121979A EP00121979A EP1094137A1 EP 1094137 A1 EP1094137 A1 EP 1094137A1 EP 00121979 A EP00121979 A EP 00121979A EP 00121979 A EP00121979 A EP 00121979A EP 1094137 A1 EP1094137 A1 EP 1094137A1
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- polyester
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- silicone oil
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- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- 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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
Definitions
- the present invention relates to so-called pilling-resistant or low-pill polyester fibers, especially high-pill types with a significantly reduced tendency to pilling.
- the invention further relates to a method for producing the aforementioned polyester staple fibers with reduced pilling tendency.
- Resistance to buckling is usually used to characterize the pilling behavior of fibers determined in the so-called wire scrub test. In doing so, individual Moving fibers back and forth over a thin wire under defined tension i.e. scrubbed until they break. Since the wire diameter is of the order of one Fiber diameter is (20 - 40 ⁇ m), there is a strong bending stress combined with a grinding effect (see also "Textile tests” by Stefan Kleinheinz, June 1991, 4th edition, Akzo Fiber Division. Wuppertal; US-A-5,858,529, Column 3, lines 54 to 65). Conventional polyethylene terephthalate fibers that are not are pilling resistant, usually have wire scrubbing tours of 3000 to 5000, while low-pill fibers reach values of ⁇ 2000.
- Polyester fibers are used for the production of garments such as Suits, Shirts or sweaters are advantageous because they have excellent wearing properties, Characterize dimensional stability, crease recovery and non-ironing.
- a known method is to use a low molecular weight polyester, i.e. low solution viscosity (relative viscosity) to spin.
- the use of Glycol as an additive in the spinning extruder is described, for example, in US Pat. No. 4,359,557.
- the connection between the Number average molecular weight of a polyester and resistance to buckling the fibers are approximately linear (Melliand Textilber. 1970, p. 181; chemical fibers + text. Application technology. Text.-Ind. 23 (1973), p. 811).
- polyester is included polyvalent carboxylic acids or alcohols, e.g. Trimethylolpropane (textile practice International 1993, p.29; DE-OS-2 046 121), pentaerythritol (Canad. Pat. No. 901716) or other branching agents modified.
- This chemical modification can while maintaining a high weight average molecular weight due to high melt viscosity the length of the macromolecules can be reduced what a reduction in the abrasion and bending resistance of the fibers and thus a Reduction in the tendency to pilling.
- branching agents is described in a number of patents, such as FR-A-1 603 030.
- polyester to the polymer chain special chemical bonds, mostly -Si-O- (hereinafter referred to as SiO bonds), to be installed, which are resistant to spinning and only in the later treatment be hydrolyzed in the presence of water or steam.
- SiO bonds -Si-O-
- This approach allows polyester with a necessary for melt spinning and good manufacture melt viscosity, the reduction of Molecular weight with the resulting reduction in the tendency to pilling only after Sprinkling is done by hydrolysis.
- organic silicon compounds as modifiers, such as tetraethyl silicate or esters of silanetriol phosphoric acid be used.
- US-A-3,335,211 describes the production of polyester staple fibers with improved Pilling resistance, whereby one of anhydrous polyethylene terephthalate with a Melt viscosity starts from 100 - 600 Pas (at 275 ° C), which 0.10 to 0.75 g Contains Si atoms per mole of glycol.
- Silicate esters such as tetraethyl silicate, which in Glycol are dissolved, are condensed into the polymer chain.
- EP-A-0 262 824 also recommends the modification of polyester fibers with the help of tetraethyl silicate followed by treatment in the presence of water.
- DE-A-17 20 647 also recommends esters and / or salts of compounds such as Silanetriolethanphosphonklare and in particular of trimethoxysilanethanephosphonklathylester condense into the polyester chain.
- DE-A-27 13 508 and DE-A-24 53 231 recommend 0.008 to 2% by weight of diphenylsilanediol, based on dimethyl terephthalate, as a co-component in the polyethylene terephthalate condense.
- DE-A-41 11 066 describes a process for the production of SiO groups modified polyethylene terephthalate according to the continuous direct esterification process described starting from terephthalic acid.
- methoxyethyl or Propyl silicate added in an amount such that 300 to 700 ppm in the polymer Silicon content results.
- the duration of the reaction between silicate and prepolymer is at least 5 min.
- the number of SiO bonds condensed in based on the The number of macromolecules determines the degradation of the relative viscosity after Spinning. This requires a very exact management of the process parameters and one precise control of the amount of modifier added during polyester production. In addition, the polyester must be kept absolutely water-free before spinning. The Polyesters containing SiO bonds can therefore often only be produced using the direct spinning process (i.e. without intermediate granulation), or an additional one must be processed specific work step can be applied.
- a disadvantage of all of the methods described above is that they are either a special one Modification of the polyester or special post-treatment processes for the fiber or of the tissue.
- DD 104 089 describes that the addition of silicone resins (methyl-phenyl-polysiloxanes) with molar masses ⁇ 4000 g / mol to increase the melt viscosity leads what should allow the trouble-free spinning of low molecular weight polyester and thereby the production of low-pill polyester fibers at a DST level of approx. 900 enables.
- DD 104 089 describes silicone resins with several esters capable of esterification OH groups added in the polycondensation, which leads to the formation of branched Structures and thus an increase in the weight average molecular weight of the Leads macromolecules. The effect of reducing the pilling tendency described in DD 104 089 is therefore on the effects already described above during the introduction branched modification agents attributable.
- Polysiloxanes without ester groups capable of esterification have the considerable disadvantage that that they are purely inert additives in the course of further processing on the fiber surface can migrate and interfere, for example, in the dyeing process impact. In addition, washing out the additive and thus losing the Antipillig effect cannot be prevented.
- Ramifications through use polyfunctional silicone oils i.e. with more than 2 esterifiable OH groups have an adverse effect because branching devices, as described above, cause problems with regard to of spinning security and spinning cleanliness.
- polyester Another well-known additive for polyester is silicon dioxide, which has not yet been described as a means of reducing the tendency to pilling without further measures.
- synthetic SiO 2 powder is usually used for thixotropy, as a dispersant, thickener (increase in melt viscosity) and antiblocking agent (for films).
- silicon dioxide or colloidal silica particles with a diameter of 1 to 100 nm can be incorporated in polyester, too Fix unevenness in the spun polyester fiber.
- silicon dioxide (silica; particle size ⁇ 80 nm) in Amounts of 0.5 to 10 wt .-% are used, whereby the pilling tendency of special co-polyester fibers in which 0.1 - 10% of the ester bonds are phosphoric acid esters are reduced.
- an aftertreatment of the Polyester fiber with hot water, steam and / or a solvent required.
- SiO 2 powder is added directly to the polyester melt or, alternatively, to the polyester granulate without the exclusion of moisture, in order to obtain low-pill polyester fibers.
- the use of SiO 2 powder in pure form for modifying standard polyester with the aim of reducing the tendency to pilling is described for the first time in the present invention.
- the use of SiO 2 of the Aerosil® type described in DE-A-4041042 was used exclusively for the purpose of increasing the spinning speed in POY spinning.
- the object of the invention is an economical process for the production of low pill or pill-free polyester fibers, especially commercial ones Standard polyesters, especially those based on terephthalic acid and ethylene glycol, by adding small amounts of suitable additives during the spinning process are to be modified in an advantageous manner so that the spun out of them Polyester fibers are largely pill-free.
- the manufacturing process of the fiber is said to be deviate only slightly from the usual procedure, i.e. such fibers are said to easily with the usual machine equipment of a fiber manufacturer can be produced.
- the object is achieved according to the invention by providing pill-resistant or low-pill polyester fibers, especially fibers of the high-pillar type (with strong reduced pilling tendency) according to claim 1 and their manufacture according Claim 14.
- the polyester fibers according to the invention with a reduced tendency to pilling have the composition defined in claim 1. Essential here is that by using three modifiers in combination in unexpected resistance to pilling can be significantly improved.
- Trevira®350 fiber can be seen as a benchmark for an anti-pilling fiber.
- the quality level of Trevira®350 fiber with regard to resistance to pilling which is below 700 DST values, could be achieved for the first time in an advantageous and economical way simply by adding additives to standard polyester. This indicates different mechanisms of action of the additives silicone oil and SiO 2 , which therefore achieve a synergistic effect.
- a low-pill DST level was achieved both with a titer of 2.4 dtex and with the finer titer 1.7 dtex, as shown in Table 1 (Examples 16 and 18 from Table 5 below): Fineness (titer) 2.35 dtex 1.69 dtex strength 2.92 cN / dtex 2.90 cN / dtex strain 52% 48% DST 618 696
- ethylene glycol as the only additive, there is an improvement in pilling resistance to DST values of maximum 1200 possible, considering the limit of spinnability reached.
- the DST value depends on the amount of ethylene glycol (EG) introduced approximately linear from (Fig. 1).
- silicone oils are known, primarily as lubricants and lubricants Find use.
- Common silicone oils are e.g. Polydialkylsiloxanes, polydiarylsiloxanes and Polyalkylaryl siloxanes.
- these are silicone oils preferably polydimethylsiloxane, e.g. Baysilon®M1000.
- Preferred are further Silicone oils with terminal esterifiable hydroxyl groups, especially preferably polydimethylsiloxanes with terminal esterifiable OH groups.
- silicone oil preferably polydimethysiloxane, with two OH groups capable of esterification, particularly preferably used with two terminal OH groups.
- Silicone oil of this type is Struktol®Polydis3999, a dihydroxy-terminated polydimethylsiloxane by Schill & Seilacher, Hamburg.
- the examples shown in Fig. 2 set the increased effect of this silicone oil on the pilling resistance of the polyester fiber in the Comparison to the use of a polydimethysiloxane without OH groups Struktol® silicone oil was also added compared to other silicone oil types achieved an improvement in spinning security and spinning cleanliness. Furthermore was found that when using silicone oils alone or together with glycol as an addition to the polyester, the effect on the tendency to pilling and the DST value increasing amount of silicone oil decreases drastically (Fig. 2).
- silicone oil of the particularly preferred type according to the invention e.g. Struktol®
- DST values ethylene glycol wire scrubbing tours
- the level of the DST values is not less than approx. 1000. This level, which can only be achieved by large amounts of SiO 2 , does not yet meet the requirements of a highly low-fiber.
- the use of large amounts of SiO 2 has the disadvantage that it is difficult to incorporate large amounts in the necessary finely divided form into the polyester. This can lead to an increased pressure build-up at the spinneret and thus to shorter nozzle life or problems with spinneret clogging. It is therefore preferred according to the invention to keep the amount of SiO 2 below 1% by weight, preferably in the range between 0.05 and 0.3% by weight, and for very good incorporation of the SiO 2 powder into the To ensure polyester through appropriate mixing elements.
- the above object is further achieved by the method according to the invention Production of these polyester fibers with reduced tendency to pilling according to claim 14 solved.
- the invention therefore also relates to a method in which the production homo- or copolyesters commonly used by normal textile fibers suitable introduction of modifiers into the polyester melt or suitable Application of the additives to the dry granulate before melting in one Extruder, is modified so that a low-pill or pill-free polyester fiber results.
- late addition technology was also introduced for such a process (see US-A-5,858,529).
- the polyester fibers of the invention typically have one relative viscosity from 1.37 to 1.58, preferably from 1.40 to 1.55, particularly preferably from 1.42 to 1.48 (1% in m-cresol).
- a relative viscosity RV 1.65, which can be obtained by adding a diol such as ethylene glycol, Diethylene glycol or triethylene glycol, to the desired relative viscosity of the fiber is broken down.
- a diol such as ethylene glycol, Diethylene glycol or triethylene glycol
- ethylene glycol Depending on the initial viscosity of the polyester, the amounts used are usually in Range between 0.03 and 0.28% by weight.
- the diol is used in the use of granules Extruder feed zone or metered into the melt line during direct spinning.
- ethylene glycol (EG) as the diol used.
- the polyester in addition to the diol used, is as follows 2. and 3. Additive called components:
- silicone oil for the second additive: addition of 0.003 to 2.0% by weight, preferably 0.05 to 0.5% by weight, of a silicone oil, based on the mass of the polyester used.
- a commercially available silicone oil without ester groups capable of esterification is, for example, Baysilon® M 1000 from Bayer with a dynamic viscosity of 1400 mPas at 20 ° C.
- silicone oil with two terminal esterifiable OH groups is preferably used in the present invention.
- the polymer degradation caused by the addition of such a silicone oil is negligible low.
- esterifying at least part of the esterifiable Hydroxyl groups with the polymer matrix is achieved in that it is too pure Do not migrate inert polysiloxanes to the surface during further processing and have no disruptive effect, for example on the coloring of the fibers. Also the This eliminates the risk of washing out the additives.
- the 3rd additive addition of 0.003 to 1.0% by weight, preferably 0.05 to 0.3% by weight, finely dispersed SiO 2 powder, with primary particle sizes of ⁇ 30 ⁇ m.
- These are synthetic, porous SiO 2 powders, which are produced either by pyrogenic processes (flame hydrolysis, electric arc, plasma) or by wet processes (precipitated silicas, silica gels). Fumed silica with a primary particle size of ⁇ 100 nm is particularly preferred.
- a particularly preferred commercially available product is, for example, Aerosil®200, or Aerosil® 300, or Aerosil®130 from Degussa, Frankfurt, which is produced by flame hydrolysis.
- Another commercial product is, for example, Syloid® from Grace, a micronized synthetic silica (average primary particle size 3-4 ⁇ m).
- the mode of action of SiO 2 in the present invention is not an increase in the melt viscosity as described and used to date, but rather the formation of predetermined breaking points within the fiber, which lead to breakage under tensile and torsional stress.
- a masterbatch with 1-15% by weight SiO 2 , preferably 5-15% by weight, can also be used.
- the masterbatch and the additives are advantageously metered into the extruder or into the polyester melt using suitable devices, or are added to the granules in advance.
- the SiO 2 powder can be mixed into the PET, for example, by means of the so-called “melt conditioning” process for the continuous modification of polyester melts (DE 40 39 857 C2).
- the "melt conditioning” process part of the melt, which can come directly from the polycondensation or from a melt, is branched off from the main melt stream. This partial stream is fed in a side-stream extruder, where it is charged with the SiO 2 additive and then dispersed. The dispersed and mixed melt concentrate is then fed into the main melt line and there diluted to the final concentration using a static mixer. Silicone oil and ethylene glycol are added in liquid form. The two liquid additives can be metered into the main melt line before the static mixer.
- the additive or the additive combination according to the invention can both as a pure substance or mixture of substances and also in Masterbatch form can be added.
- other additives can also be used and additives are incorporated and co-spun.
- the polyethylene terephthalate itself can also use conventional additives such as matting agents (titanium dioxide), stabilizers, Catalysts, etc. included.
- PET Polyethylene terephthalate
- polyyester polyester which is at least 90 mol% Contain polyethylene terephthalate units and a maximum of 10 mol% units of a diol other than ethylene glycol, such as diethylene glycol, Tetramethylene glycol or a dicarboxylic acid other than terephthalic acid, for example Isophthalic acid, hexahydroterephthalic acid, dibenzoic acid are derived.
- the starting polyester can also contain known additives to the Ability to modify the coloring, e.g. Sodium 3,5-dicarboxybenzenesulfonate.
- the process according to the invention also has the great advantage that the polycondensation plant are always operated with the same standard settings can. It can be standard textile granulate according to the direct esterification process or Transesterification processes are used. The necessary for the special requirement Additives are only added after the polycondensation, before spinning, what enables a high degree of flexibility and economy. According to the invention found such additives that lead to the desired effect within a short time Residence time in which highly viscous polyester melt can be incorporated, none Polycondensation conditions (vacuum to remove low molecular weight fission products) require and do not affect the spinnability. The additives are also stable and will not be washed out.
- Standard PET granules matted with 0.3% TiO 2 and having a relative viscosity of 1.65 (1% in m-cresol / 20 ° C.) were melted on a melt spinning machine and mixed with the indicated additives according to Table 2. Threads with a throughput of 599 g / min were pressed out at a melt temperature of 258 ° C from a nozzle plate with 845 holes and 0.35 mm hole diameter, cooled by central blowing, drawn off at 891 m / min and placed in a jug. The spun cables were then stretched about 3.2 times on a fiber line, crimped, heat-set and cut into staple fibers.
- the liquid components (silicone oil and EG) were dosed directly into the granulate inlet of the spinning extruder.
- the SiO 2 powder was mixed with the granules using a metering device (from Koch Maschinentechnik GmbH, D-Ispringen / Pforzheim). In most variants, the SiO 2 was used as a masterbatch (10% by weight SiO 2 in polyester carrier material).
- Trevira® Trevira® 350 fiber The main goal of the investigations was to achieve the quality level of Trevira® Trevira® 350 fiber with regard to pilling resistance.
- the properties of this fiber are shown in Table 3 and serve as a benchmark for comparison with the fibers according to the invention measured using the same methods. Comparative values of the Trevira ® 350 fiber (measured according to the method as in Tab. 1) TREVIRA ® 350 TREVIRA ® 350 Titer [dtex] 2.36 1.64 Strength [cN / dtex] 2.69 2.64 Strain [%] 50.84 28.46 DST 545 655
- Viscosities (relative viscosity) of Examples 1 to 20 example RV, 1% measured in m-cresol 1 1,471 2 1.458 3rd 1.456 4th 1,446 5 1.445 6 1,650 7 1,641 8th 1,630 9 1,500 10 1,497 11 1,493 12th 1,490 13 1,479 14 1,440 15 1,436 16 1,432 17th 1,467 18th 1,427 19th 1,638 20th 1,631
- Example 6 shows a zero variant without any additive addition.
- Textile data of the finished fibers example Titer [dtex] Strength [cN / dtex] Strain % DST 1 2.34 3.38 48.37 1382 2 2.31 3.36 48.66 932 3rd 2.43 2.93 53.45 997 4th 2.30 3.00 49.25 673 5 2.40 3.07 54.27 715 6 2.42 4.02 48.79 3008 7 2.41 3.98 54.50 1451 8th 2.41 4.00 52.27 1304 9 2.44 3.61 52.86 1649 10 2.31 3.68 53.01 990 11 2.47 3.60 51.33 905 12th 2.35 3.36 52.15 1208 13 2.37 3.21 54.97 1140 14 2.31 2.90 53.01 622 15 2.47 2.69 55.33 511 16 2.35 2.92 52.15 618 17th 2.43 3.09 54.72 1045 18th 1.69 2.90 47.97 696 19th 2.37 3.90 52.10 2170 20th 2.41 3.95 51.89 2273
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Abstract
Description
Faserfeinheit (Titer) | 2,35 dtex | 1,69 dtex |
Festigkeit | 2,92 cN/dtex | 2,90 cN/dtex |
Dehnung | 52% | 48% |
DST | 618 | 696 |
(n = Mittelwert der sich wiederholenden Monomereinheiten)
- Polyethylenterephthalat (PET):
- Standard PET in Textilqualität mit rel. Viskosität 1,65 (gemessen 1 % in m-Kresol bei 20°C) mit 0,3 % Ti02
- Siliconöl:
- Dihydroxyterminiertes Polydimethylsiloxan mit n =40 (Handelsname Struktol® Polydis 3999 der Firma Schill und Seilacher, Hamburg) Polydimethylsiloxan ohne endständige OH-Grupen: Handelsname Baysilon® M 1000 der Firma Bayer, Leverkusen
- Diol:
- Ethylenglykol (EG)
- SiO2:
- Siliciumdioxid, (Aerosil® 200 der Firma Degussa)
- DST-Wert-Bestimmung:
- Die DST-Wert-Bestimmung erfolgte gemäß US-A-5,858,529, Sp. 3, Z. 54-65.
Beispiele | Titer [dtexl | EG | Siliconöl | SiO2-Endkonzentration im PET |
1 | 2,40 | 0,14% | ||
2 | 2,40 | 0,14% | 0,40% Struktol® | |
3 | 2,40 | 0,14% | 0,50 % SiO2 | |
4 | 2,40 | 0,14% | 0,40% Struktol® | 0,50 % SiO2 |
5 | 2,40 | 0,14% | 0,40% Struktol® | 0,20 % SiO2 |
6 | 2,40 | |||
7 | 2,40 | 0,40% Struktol® | ||
8 | 2,40 | 0,90% Struktol® | ||
9 | 2,40 | 0,10% | ||
10 | 2,40 | 0,10% | 0,40% Struktol® | |
11 | 2,40 | 0,10% | 0,90% Struktol® | |
12 | 2,40 | 0,10% | 0,20% SiO2 | |
13 | 2,40 | 0,10% | 0,50 % SiO2 | |
14 | 2,40 | 0,14% | 0,40% Struktol® | 0,50 % SiO2 |
15 | 2,40 | 0,16% | 0,40% Struktol® | 0,50 % SiO2 |
16 | 2,40 | 0,16% | 0,40% Struktol® | 0,20 % SiO2 |
17 | 2,40 | 0,14% | 0,20 % SiO2 | |
18 | 1,67 | 0,16% | 0,40% Struktol® | 0,20 % SiO2 |
19 | 2,40 | 0,60% Baysilon® | ||
20 | 2,40 | 0,40% Baysilon® |
Vergleichswerte der Faser Trevira ® 350 (gemessen gemäß Methode wie Tab. 1) | ||
TREVIRA ® 350 | TREVIRA ® 350 | |
Titer [dtex] | 2,36 | 1,64 |
Festigkeit [cN/dtex] | 2,69 | 2,64 |
Dehnung [%] | 50,84 | 28,46 |
DST | 545 | 655 |
Viskositäten (relative Viskosität) der Beispiele 1 bis 20 | |
Beispiel | RV, 1%in m-Kresol gemessen |
1 | 1,471 |
2 | 1,458 |
3 | 1,456 |
4 | 1,446 |
5 | 1,445 |
6 | 1,650 |
7 | 1,641 |
8 | 1,630 |
9 | 1,500 |
10 | 1,497 |
11 | 1,493 |
12 | 1,490 |
13 | 1,479 |
14 | 1,440 |
15 | 1,436 |
16 | 1,432 |
17 | 1,467 |
18 | 1,427 |
19 | 1,638 |
20 | 1,631 |
Textile Daten der fertigen Fasern | ||||
Beispiel | Titer [dtex] | Festigkeit [cN/dtex] | Dehnung % | DST |
1 | 2,34 | 3,38 | 48,37 | 1382 |
2 | 2,31 | 3,36 | 48,66 | 932 |
3 | 2,43 | 2,93 | 53,45 | 997 |
4 | 2,30 | 3,00 | 49,25 | 673 |
5 | 2,40 | 3,07 | 54,27 | 715 |
6 | 2,42 | 4,02 | 48,79 | 3008 |
7 | 2,41 | 3,98 | 54,50 | 1451 |
8 | 2,41 | 4,00 | 52,27 | 1304 |
9 | 2,44 | 3,61 | 52,86 | 1649 |
10 | 2,31 | 3,68 | 53,01 | 990 |
11 | 2,47 | 3,60 | 51,33 | 905 |
12 | 2,35 | 3,36 | 52,15 | 1208 |
13 | 2,37 | 3,21 | 54,97 | 1140 |
14 | 2,31 | 2,90 | 53,01 | 622 |
15 | 2,47 | 2,69 | 55,33 | 511 |
16 | 2,35 | 2,92 | 52,15 | 618 |
17 | 2,43 | 3,09 | 54,72 | 1045 |
18 | 1,69 | 2,90 | 47,97 | 696 |
19 | 2,37 | 3,90 | 52,10 | 2170 |
20 | 2,41 | 3,95 | 51,89 | 2273 |
Claims (16)
- Polyesterfasern mit verminderter Pillingneigung, enthaltend(1) einen Polyester als fadenbildendes Polymer, das aus mindestens 90 Mol.-% Polyethylenterephthalat-Einheiten besteht, sowie(2) ein Diol aus der Gruppe Ethylenglykol, Diethylenglykol und Triethylenglykol in einer Menge, die den Polyester auf eine relative Viskosität im Bereich von 1,37 - 1,58 (gemessen 1%-ig in m-Kresol) abgebaut hat, und(3) 0,003 bis 1,0 Gew.-% in dem Polyestermaterial fein verteilte Siliciumdioxid- oder Kieselsäure-Teilchen, bezogen auf das fadenbildende Polymere, und(4) 0,003 bis 2,0 Gew.-% Siliconöl, bezogen auf das fadenbildende Polymere, wobei im Fall von im Siliconöl vorhandenen reaktiven Gruppen diese mindestens teilweise chemisch an die Polyester-Makromoleküle gebunden sind, und(5) wahlweise weitere übliche, bekannte verarbeitungs- oder verwendungsspezifische Additive,
wobei die Polyesterfasern eine relative Viskosität von 1,37 bis 1,58, gemessen 1%-ig in m-Kresol, aufweisen. - Polyesterfasern gemäß Patentanspruch 1, dadurch gekennzeichnet, dass das Siliciumdioxid ein feinteiliges, poröses Siliciumdioxid-Pulver ist.
- Polyesterfasern gemäß Anspruch 1, dadurch gekennzeichnet, dass das Siliciumdioxid Primärteilchengrössen von <30 µm, vorzugsweise < 100 nm aufweist.
- Polyesterfasern nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Siliciumdioxid in der Form eines Masterbatches auf Polyesterbasis mit 1 bis 20 Gew.-% SiO2, bevorzugt 5 bis 15 Gew.-% SiO2, verwendet wird.
- Polyesterfasern gemäß Anspruch 1, dadurch gekennzeichnet, dass das Siliconöl ein Polydialkylsiloxan, Polydiarylsiloxan oder Polyalkalarylsiloxan, vorzugsweise Polydimethylsiloxan ist.
- Polyesterfasern gemäss Anspruch 5, dadurch gekennzeichnet, dass Siliconöl verwendet wird, welches reaktive Hydroxylgruppen, vorzugsweise zwei endständige reaktive Hydroxylgruppen pro Molekül aufweist.
- Polyesterfasern gemäss Anspruch 5 oder 6, dadurch gekennzeichnet, dass es sich bei dem Siliconöl um ein Polydimethylsiloxan mit zwei endständigen Hydroxylgruppen handelt.
- Polyesterfasern gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Drahtscheuertouren-Werte von unter 700 aufweisen.
- Polyesterfasern gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Drahtscheuertouren-Werte von etwa 600 aufweisen.
- Polyesterfasern gemäß einem der vorhergegehenden Ansprüche, dadurch gekennzeichnet, dass als fadenbildendes Polymer Polyethylenterephthalat eingesetzt wird.
- Polyesterfasern gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Siliciumdioxid- bzw. Kieselsäureteilchen, bezogen auf das fadenbildende Polymere,in Mengen von 0,05 bis 0,3 Gew.-% eingesetzt werden und daß das Siliconöl in Mengen von 0,05 bis 0,5 Gew.-% eingesetzt wird.
- Polyesterfasern gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Polyesterfasern eine relative Viskosität von 1,40 bis 1,55 gemessen 1%-ig in m-Kresol, aufweisen.
- Polyesterfasern gemäß Anspruch 12, dadurch gekennzeichnet, dass sie eine relative Viskosität von 1,42 bis 1,48, gemessen 1%-ig in m-Kresol, aufweisen.
- Verfahren zur Herstellung von Polyesterfasern gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man die Kombination der Additive (2), (3) und (4) dem Polyestergranulat vor dem Aufschmelzen bzw. in der Schmelze vor dem Verspinnen zudosiert und darin vermischt bzw. dispergiert und anschließend die Schmelzemischung verspinnt.
- Verfahren gemäß Anspruch 14, dadurch gekennzeichnet, dass man zur kontinuierlichen Modifizierung der Polyesterschmelze einen Teil der Schmelze aus dem Hauptschmelzstrom abzweigt, diesen Teilstrom in einen Seitenstrom einspeist, dort mit dem Siliciumdioxid oder Kieselsäurepulver beaufschlagt und dieses darin dispergiert, das dispergierte und gemischte Schmelzekonzentrat aus dem Seitenstrom zurück in die Hauptschmelzeleitung führt und dort über einen statischen Mischer auf die Endkonzentration verdünnt, das Diol und das Siliconöl flüssig vor dem statischen Mischer dosiert werden, und man anschließend die Schmelzemischung verspinnt.
- Polyesterfaser gemäss Anspruch 1, dadurch gekennzeichnet, dass man von einem Polyester mit relativer Viskosität von> 1,55 ausgeht, der durch Zugabe eines aliphatischen oder alicyclischen Diols auf die gewünschte Zielviskosität (relative Viskosität, gemessen 1%-ig in m-Kresol) im Bereich von 1,40 bis 1,55, bevorzugt auf 1,42 bis 1,48, abgebaut wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19951067 | 1999-10-22 | ||
DE19951067A DE19951067B4 (de) | 1999-10-22 | 1999-10-22 | Polyesterfasern mit verminderter Pillingneigung sowie Verfahren zu ihrer Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1094137A1 true EP1094137A1 (de) | 2001-04-25 |
EP1094137B1 EP1094137B1 (de) | 2003-04-02 |
Family
ID=7926616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP00121979A Expired - Lifetime EP1094137B1 (de) | 1999-10-22 | 2000-10-09 | Polyesterfasern mit verminderter Pillingneigung sowie Verfahren zu ihrer Herstellung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1094137B1 (de) |
CN (1) | CN1302923A (de) |
DE (2) | DE19951067B4 (de) |
ID (1) | ID27708A (de) |
TR (1) | TR200003080A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7189797B2 (en) | 2001-09-20 | 2007-03-13 | Teijin Limited | Process for producing poly(ethylene-aromatic dicarboxylate ester) resin and resin product |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100395400C (zh) * | 2005-09-29 | 2008-06-18 | 上海交通大学 | 可用于深染色纤维的聚酯纳米复合材料制备方法 |
JP5553607B2 (ja) * | 2006-11-03 | 2014-07-16 | ビーエーエスエフ ソシエタス・ヨーロピア | 低放出ポリマー成形材料 |
DE102011114237A1 (de) * | 2011-09-23 | 2013-03-28 | Trevira Gmbh | Pillarme Polyesterfaser |
CN104651972A (zh) * | 2015-03-17 | 2015-05-27 | 江苏江南高纤股份有限公司 | 直接纺丝低起球聚酯毛型纤维长丝束的制造方法 |
CN111575809A (zh) * | 2020-04-22 | 2020-08-25 | 周华 | 一种抗起球的聚酯长丝的生产方法 |
CN114086269B (zh) * | 2021-11-10 | 2023-11-28 | 浙江正堂实业股份有限公司 | 一种超细旦多孔涤纶拉伸变形丝及其加工工艺 |
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US3193516A (en) * | 1961-01-30 | 1965-07-06 | Ici Ltd | Melt spinning process |
DE1237727B (de) * | 1959-05-26 | 1967-03-30 | Du Pont | Verfahren zum Herstellen von Polyesterfaeden |
DD104089A1 (de) * | 1973-04-17 | 1974-02-20 | ||
DE2804608A1 (de) * | 1978-02-03 | 1979-08-09 | Bayer Ag | Pillarme polyesterfasern |
US4359557A (en) * | 1980-09-11 | 1982-11-16 | Eastman Kodak Company | Process for producing low pilling textile fiber and product of the process |
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CA901716A (en) * | 1972-05-30 | L. Neely David | Polyester fibers for use in fabrics susceptible to pilling | |
US3335211A (en) * | 1959-06-26 | 1967-08-08 | Du Pont | Process for melt spinning linear polyester modified with an oxysilicon compound |
DE1720697B2 (de) * | 1967-08-16 | 1976-10-21 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von lacken |
FR1603030A (de) * | 1968-06-04 | 1971-03-15 | ||
BE756413A (fr) * | 1969-09-22 | 1971-03-22 | Montedison Spa | Procede de preparation de fibres de polyester presentant des caracteristiques ameliorees |
DE2453231A1 (de) * | 1974-11-09 | 1976-05-13 | Bayer Ag | Pillingarme polyesterfasern |
DE2713508A1 (de) * | 1977-03-26 | 1978-09-28 | Bayer Ag | Pillingarme polyesterfasern |
JPS54120728A (en) * | 1978-03-08 | 1979-09-19 | Kuraray Co Ltd | Fine synthetic fiber having complicatedly roughened surface and its production |
JPS62263357A (ja) * | 1986-05-08 | 1987-11-16 | 株式会社クラレ | 編地およびその製法 |
US4833032A (en) * | 1986-09-12 | 1989-05-23 | E. I. Du Pont De Nemours And Company | Texturing polyester yarns |
FR2660663B1 (fr) * | 1990-04-05 | 1993-05-21 | Rhone Poulenc Fibres | Procede pour l'obtention de polyterephtalate d'ethylene modifie, fibres exemptes de boulochage issues du polymere ainsi modifie. |
AU653207B2 (en) * | 1991-01-29 | 1994-09-22 | E.I. Du Pont De Nemours And Company | Preparing polyester fine filaments |
DE19507111C1 (de) * | 1995-03-02 | 1996-10-02 | Akzo Nobel Nv | Polyesterfasern oder -fäden mit hoher Pillingresistenz und Verfahren zu deren Herstellung |
-
1999
- 1999-10-22 DE DE19951067A patent/DE19951067B4/de not_active Expired - Fee Related
-
2000
- 2000-10-09 DE DE50001598T patent/DE50001598D1/de not_active Expired - Fee Related
- 2000-10-09 EP EP00121979A patent/EP1094137B1/de not_active Expired - Lifetime
- 2000-10-20 TR TR2000/03080A patent/TR200003080A1/xx unknown
- 2000-10-23 ID IDP20000908A patent/ID27708A/id unknown
- 2000-10-23 CN CN00131668A patent/CN1302923A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1237727B (de) * | 1959-05-26 | 1967-03-30 | Du Pont | Verfahren zum Herstellen von Polyesterfaeden |
US3193516A (en) * | 1961-01-30 | 1965-07-06 | Ici Ltd | Melt spinning process |
DD104089A1 (de) * | 1973-04-17 | 1974-02-20 | ||
DE2804608A1 (de) * | 1978-02-03 | 1979-08-09 | Bayer Ag | Pillarme polyesterfasern |
US4359557A (en) * | 1980-09-11 | 1982-11-16 | Eastman Kodak Company | Process for producing low pilling textile fiber and product of the process |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7189797B2 (en) | 2001-09-20 | 2007-03-13 | Teijin Limited | Process for producing poly(ethylene-aromatic dicarboxylate ester) resin and resin product |
Also Published As
Publication number | Publication date |
---|---|
EP1094137B1 (de) | 2003-04-02 |
DE50001598D1 (de) | 2003-05-08 |
DE19951067B4 (de) | 2004-04-08 |
ID27708A (id) | 2001-04-26 |
CN1302923A (zh) | 2001-07-11 |
DE19951067A1 (de) | 2001-05-23 |
TR200003080A1 (tr) | 2001-05-21 |
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