WO2007086167A1 - Dustproof clothes and method of manufacturing the same - Google Patents

Dustproof clothes and method of manufacturing the same Download PDF

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Publication number
WO2007086167A1
WO2007086167A1 PCT/JP2006/319531 JP2006319531W WO2007086167A1 WO 2007086167 A1 WO2007086167 A1 WO 2007086167A1 JP 2006319531 W JP2006319531 W JP 2006319531W WO 2007086167 A1 WO2007086167 A1 WO 2007086167A1
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WO
WIPO (PCT)
Prior art keywords
dust
density
proof
fabric
multifilament yarn
Prior art date
Application number
PCT/JP2006/319531
Other languages
French (fr)
Japanese (ja)
Inventor
Takashi Arai
Original Assignee
Kaytay Knit Co., Ltd.
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
Application filed by Kaytay Knit Co., Ltd. filed Critical Kaytay Knit Co., Ltd.
Priority to JP2006545345A priority Critical patent/JPWO2007086167A1/en
Publication of WO2007086167A1 publication Critical patent/WO2007086167A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/24—Hems; Seams
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D1/00—Garments
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/008—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting against electric shocks or static electricity
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/26—Electrically protective, e.g. preventing static electricity or electric shock
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
    • D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/14—Dyeability
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments

Definitions

  • the present invention relates to a dust-proof garment and a method of manufacturing the same. More specifically, the present invention relates to dust-proof clothing that is most suitable for workers to wear and work in clean rooms such as semiconductor manufacturing factories. The present invention relates to a dustproof garment having a dusting prevention effect and a dustproofing improvement effect, and a method for manufacturing the same. Background art
  • a base layer composed of a knitted fabric, an intermediate layer bonded to the base layer and made of a non-empty type superabsorbent polyurethane resin film, and a warp bonded to the intermediate layer Or polyester high-density fabric in which conductive yarns are arranged at predetermined intervals in the weft direction
  • Patent Document 2 A dustproof fabric for a semiconductor clean room having a three-layer structure having a structured outer skin layer and a dustproof clothing using the raw material have been proposed (Patent Document 2).
  • the proposed dust-proof fabric has a special grease film layer on the entire fabric, so that it is not comfortable to wear, and the presence of a seam hole caused by sewing is found inside the clothing. Although it is a negative factor in that powerful dust such as sebum and underwear blows out, no measures have been devised for the treatment of the seam hole.
  • Patent Document 1 Japanese Patent Laid-Open No. 11-350296
  • Patent Document 2 Japanese Patent Laid-Open No. 11-189944
  • An object of the present invention is to provide a dustproof garment that has good filter properties and antistatic properties, has a high level of dust generation prevention effect and dustproofness improvement effect, and has no moisture and good wearing feeling. Is to provide a method of manufacturing such a dust-proof garment.
  • the dust-proof garment of the present invention that achieves the above-described object has the following configuration (1).
  • a dust-proof work garment formed by sewing a high-density woven fabric having at least a hollow synthetic fiber multifilament yarn and a conductive multifilament yarn woven together. At least the high-density woven fabric and the high-density woven fabric have a low-melting-point tape-shaped resin film between them, and at least three layers of the tape-shaped resin film.
  • the sewing machine is sewn by at least two rows of stitch lines extending in the longitudinal direction, and further, after the sewing machine is sewn, a seal structure based on the thermal melting of the tape-like resin film is formed on the stitch line part. Dust-proof clothing characterized by
  • the dustproof garment of the present invention that has strength, more preferably, has a specific configuration described in the following (2) to (7).
  • the high-density woven fabric has a cover factor in the range of 2600-3200.
  • the dust-proof garment as described in (1) above.
  • Conductive multifilament yarn strength The dustproof clothing described in (1) or (2) above, wherein 8 to 25% by weight of carbon black is added to the conductive multifilament yarn. .
  • the conductive multifilament yarn is used in at least a part of each of the warp and weft of the high-density fabric and presents in a lattice form in the high-density fabric.
  • a method for manufacturing a dust-proof garment according to the present invention that achieves the above-described object has the following configuration (8).
  • the hollow ratio of the synthetic fiber multifilament yarn is 20%.
  • the melting point is between 60 ° C and 140 ° between the parts having the high density fabric dough strength.
  • a tape-like film made of C resin is interposed, and at least three layers are sewn together by sewing stitches that form at least two rows of stitch lines extending in the longitudinal direction of the tape-like resin film. After the sealing, the stitch line portion is heated to heat melt the tape-like resin film and seal the stitch line portion.
  • the manufacturing method of the dust-proof garment of the present invention it is more preferable to have the specific configuration described in any one of the following (9) to (14).
  • (9) At the spinning stage, hollow synthetic fibers are spun at the same time using polymers with different core-sheath base cap melting points, using a polymer with a high melting point for the sheath and a polymer with a low melting point for the core, The method for producing a dust-proof garment as described in (8) above, wherein the composite yarn is subjected to alkali treatment at the dyeing stage, and the low melting point polymer is melted and removed to form a hollow.
  • the weft is made finer than the warp, the weft density is greater than the warp density, and
  • the characteristics of the dust-proof garment according to claim 1 are as follows. In addition to the properties, it is possible to provide a dust-proof garment having a dust-proof effect and a dust-preventing effect that are superior in terms of the structure of the woven fabric.
  • the entire dust-proof garment in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 5, the entire dust-proof garment can be reduced in weight, and the synthetic fiber It is possible to provide a dust-proof garment that can exhibit its inherent strength.
  • an excellent dustproof garment having excellent filter properties and antistatic properties, and capable of exhibiting an excellent dusting prevention effect and a dustproof improvement effect. It can be manufactured.
  • the dust-proof garment of the present invention is a fabric made of a high-density fabric obtained by interweaving at least a hollow synthetic fiber multifilament yarn and a conductive multifilament yarn using at least hollow synthetic fibers having a hollow ratio of 20% to 65%.
  • the sewing machine is sewn.
  • hollow synthetic fiber multifilament yarn is effective in reducing the weight of the entire dust-proof garment and exerting the inherent strength of the synthetic fiber. Further, by using filament yarn of long fiber, Since the fluff does not come off, dust generation due to the fluff scattering from the dust-proof clothing itself can be minimized.
  • the hollow ratio is preferably 30% to 40%.
  • the "hollow synthetic fiber multifilament yarn” used in the present invention is a yarn composed of a large number of single yarn filaments, and the hollow is defined in the cross-sectional direction of each single yarn filament. It has a cavity. A method for calculating the hollowness ratio H (%) will be described later.
  • the hollow synthetic fiber is simultaneously spun from the core-sheath die using polymers having different melting points in the spinning stage.
  • a polymer having a high melting point for example, polyethylene terephthalate is used for the sheath
  • a polymer having a low melting point for example, a cation polymer is used for the core.
  • This yarn is generally called a composite yarn, and this composite yarn is subjected to alkali treatment at the dyeing stage, and the low melting point polymer is melted and removed to make it hollow.
  • the material of the hollow synthetic fiber is polyester, polyethylene terephthalate, polybuty Lenterephthalate, polyamide, etc. can be used, and the cross-sectional shapes include circular, rugby ball (elliptical), double rugby ball ( ⁇ ), triangular, octagonal, etc.
  • the hollow synthetic fiber multifilament yarn is twisted with a sweet twist number of 250 tZm or less, a normal ring twister MZC, and a yarn speed of 30 mZ.
  • a hollow synthetic fiber spun by using a “cylindrical die” in which the core is hollow at the spinning stage can also be used.
  • a conductive component for example, metal powder
  • a conductive component for example, metal powder
  • a combination with a conductive filament yarn for example, a synthetic fiber multifilament yarn having a circular cross section or a false twisted version of this yarn is aligned.
  • FIG. 1 is a schematic front view showing an example of the dust-proof garment of the present invention.
  • the dust-proof garment 1 of the present invention is formed in, for example, an upper and lower coverall style.
  • the one shown in FIG. 1 may be a force center fastener type which is a side fastener type.
  • Reference numeral 2 denotes a stitch line when the sewing machine is sewn, and a perforation exists along the line.
  • the sewing machine stitching is performed at the location where the high-density fabric cloths are stitched together. 4 and at least the three-layer force of the resin film 5 having a tape-like melting point of 60 ° C. to 140 ° C. is interposed between the four, and at least 2 extending in the longitudinal direction of the tape-like resin film 5.
  • the end of each fabric part 3 and 4 is folded inward, and the grease filter is inserted into the folded part.
  • a scissors or the like that are sewn with a structure that interposes the rumm 5 is preferable because it can increase the strength of the stitches and the eyes.
  • stitch lines such as main stitching, double chain stitching, and single ring stitching may be used in addition to saddle stitching. It is not appropriate to use a dustproof thread for the sewing thread because the seam strength is reduced.
  • the stitch line portion is heated with a heating roller, a heating plate, or the like using, for example, a high-frequency sewing machine or an ultrasonic heat welding machine to form a tape shape.
  • a resin film is heat-sealed, and the melted resin enters perforations and recesses and is solidified again to form a structure that seals the stitch line portion.
  • a resin film having a melting point of about 60 to 140 ° C it is preferable to use a material having a melting point difference of about 120 ° C to 200 ° C as the melting point of the synthetic fiber of the fabric. If the melting points of the two are close to each other, a melting effect is imparted to the woven fabric constituting the dust-proof garment body, and if the texture at the stitch line part is touched, the feeling of wearing may be inferior.
  • polyethylene terephthalate has a melting point of 240 ° C as a polymer having a high melting point
  • ethylene butyl acetate copolymer has a melting point of 90 ° C as a polymer having a low melting point. It is.
  • the conductive multifilament yarn has a carbon black or white carbon added thereto in an amount of 8 to 25% by weight in the conductive multifilament yarn in order to achieve good antistatic properties.
  • a carbon black or white carbon added is preferably used.
  • a conductive multifilament yarn with 15% to 20% by weight of carbon black or white carbon added is used.
  • the carbon is present in an exposed state.
  • the total fineness (fineness as a multifilament yarn) should be 17 decitex to 28 decitex, and 3 to 5 filaments.
  • such a conductive multifilament yarn preferably uses conductive filament fibers containing carbon black or white carbon at a ratio of 20% by weight to 80% by weight of the polyester component.
  • such conductive fibers include trade names “Kurabobo (Kuraray Co., Ltd., registered trademark)”, “Kurabobo (Kuraray Co., Ltd., registered trademark) II”, “Celmec (Kuraray Co., Ltd., registered trademark)”. ",” Bertron (Kanebo Gosei Co., Ltd., registered trademark) "and the like.
  • Conductive multifilament yarn should be used at a usage ratio within the range of 1 to 4% by weight as the weight ratio of the carbon component to the total weight of the fabric.
  • the conductive multifilament yarn is 3mn! It may be a stripe (striped pattern) at regular intervals of ⁇ 15mm, but it is highly dense. It is used as a warp and weft of a woven fabric, and it is better to have a lattice shape at regular intervals (about 3 mn! To 15 mm) of warp and weft as described above. It is preferable for obtaining the effect. In other words, even in the case of a lattice, both the longitudinal direction and the weft direction are 3mn! It is preferable to use it as about 15 mm, and it is more preferable to use a constant interval of about 5 mm to 10 mm and to weave so that the conductive multifilament yarn exists.
  • a hollow synthetic fiber multifilament yarn comprising at least a hollow synthetic fiber having a hollow ratio of 20% to 65% is used for at least warp yarn, and for the weft yarn, non-hollow Use synthetic fiber multifilament yarn.
  • the dust-proof garment according to the present invention can be made lighter and more comfortable. It is preferable that the hollow synthetic fiber multifilament yarn is used for both the wefts and used in combination with the conductive multifilament yarn described above.
  • the dust-proof clothing that can be applied to the present invention is work clothing worn in a manufacturing factory for electronic devices such as semiconductors, a manufacturing factory for precision equipment, or a food manufacturing factory, it is lightweight. Based on being! 1 ⁇ property and free mobility in terms of safety, it is desirable to use for both the warp and weft.
  • a strong high-density fabric structure can be generally expressed by a cover factor
  • examples of the specific fabric structure include plain weave, twill, satin, their changed structure, and double structure.
  • warp and weft yarns should be contained within 1 inch as much as possible.
  • synthetic fiber multifilament yarns such as polyester are excellent in abrasion resistance! /, And therefore do not generate fluff even when rubbed.
  • the dust-proof garment manufacturing method of the present invention manufactures a dust-proof work garment by sewing a high-density woven fabric obtained by interweaving at least synthetic fiber multifilament yarn and conductive multifilament yarn, and sewing these yarns.
  • the synthetic fiber multifilament yarn as a hollow synthetic fiber having a hollow ratio of 20% to 65% and stitching the parts having the high density fabric cloth force, the parts having the high density fabric cloth force Between them, a tape-like film having a melting power of S60 ° C to 140 ° C is interposed, and at least two of these layers form a stitch line extending in the longitudinal direction of the tape-like resin film.
  • the stitching unit is stitched by the stitched sewing machine, and then the stitch line portion is heated to melt the tape-like resin film and melt the stitch line.
  • the part is sealed.
  • This heat seal can favorably prevent dust generated from the wearer's worker's body and other clothing from leaking out of the dust-proof clothing. A dust generation preventing effect can be obtained.
  • the dust-proof clothing according to the present invention can be appropriately subjected to antifouling treatment, flame retardancy treatment, or incombustibility treatment.
  • the treatment can be performed in a dustproof garment stage, a woven fabric stage, a sewing thread stage, or the like.
  • the entire high-density fabric is subjected to flame retardant processing by immersing the flame retardant, and the level of the flame retardant processing is a LOI value (limiting-oxygen-index: parameter value indicating flame retardancy).
  • the limit oxygen index is preferably a level of 32 to 38.
  • Powerful flame retardant properties include: after weaving a high density fabric, before or after calendering, It is preferable to apply by immersing (penetrating) the flame retardant treatment liquid into the entire dough.
  • a dip treatment in which a high-density fabric is allowed to pass through a bath of a flame retardant treatment solution is most preferable, but a spray treatment or a spray treatment at a level at which the same effect as those can be obtained may be used.
  • the flame retardant those known in the art can be used, and are not particularly limited.
  • sodium borate polymer, sodium silicate polymer, guanidine phosphate Derivatives, sulfur-containing nitrogen compounds, phosphoric acid ester amides, aromatic condensed phosphoric acid ester compounds and the like can be used.
  • the above flame retardant is used, and the applied amount is generally 1 to 4 g / Flame retardant performance can be obtained.
  • the back surface of the high-density woven fabric is calendered.
  • the calendering can also be called “weaving processing", and the air flow rate is 0.3 to 1. It can be adjusted to be within the range of Ocm 3 / cm 2 Zsec.
  • the air flow rate is about 1.2 to 1.8 cm 3 Zcm 2 Zsec.
  • the calendering has the effect of improving both dust generation prevention and dust prevention performance, and as described above, it is important to apply it to the back surface of the fabric, and the surface may be applied if necessary.
  • Obtaining the above-mentioned ventilation characteristics (aeration volume) by applying to the back surface is also a force of technical purpose.
  • the calendering process is not particularly limited, but it is performed by passing the cloth fabric through a mirror roller while pressing it.
  • the weft in a high-density fabric, can be made finer than the warp, and the weft density can be made larger than the warp density to improve the strength. At this time, preferably
  • the hollow ratio (%) of the hollow synthetic fiber, the cover fabric of the woven fabric is a value obtained by measuring by the following method.
  • the cover factor of the woven fabric is expressed by the following formula.
  • Nw Number of warp yarns (Z inches)
  • Nf Number of horizontal threads (Z inches)
  • the above formula is used to calculate the average value by calculating n times 3 times, and at that time, round the first decimal place.
  • Nw number of warp yarns
  • Nf number of horizontal yarns
  • Dw warp yarn thickness
  • Df horizontal yarn thickness
  • the decitex fineness is obtained by measuring the yarn weight.
  • the hollow ratio H (%) of the hollow synthetic fiber is represented by the ratio of the cross-sectional area M of the hollow portion in the entire cross-sectional area (including the sectional area of the hollow portion) W of one synthetic fiber. That is, it is represented by the following formula.
  • the cross-sectional area determined unit to the first decimal place as mm 2 is the also calculated.
  • the number of n was 4, and the average value was the hollowness H (%).
  • the method for measuring the melting point of the resin film is to place a sample (about 5 g) in a test tube and raise the temperature at a heating rate of about 1 ° CZ from a temperature lower than the melting point by about 10 ° C or more in the heating device.
  • the temperature when “melting” was read.
  • the number of n is the average of three times. “When melting” was defined as the time when melting can be judged by the naked eye. [0066] (4) the content of carbon (wt 0/0):
  • the present invention is dust-proof clothing that is most suitable for an operator to wear and work in such a clean room and has good filter properties and anti-static properties. However, it can demonstrate its excellent dusting prevention effect and dustproofing improvement effect, and it can be said that there are much higher industrial utility values.
  • FIG. 1 is a schematic front view showing an example of a dust-proof garment of the present invention.
  • FIG. 2 is a cross-sectional view of the sewing portion of the sewing machine in a direction perpendicular to the direction in which the stitch line extends.
  • High-density woven fabric part 4 High-density woven fabric part 5: Tape-like grease film 6: Stitch line

Abstract

[PROBLEMS] To provide dustproof clothes having excellent filtering and antistatic properties, having an excellent effect of preventing dust production, and having an improved dustproof effect; and a method of manufacturing the dustproof clothes. [MEANS FOR SOLVING PROBLEMS] The dustproof work clothes are formed by machine-sewing a highly dense fabric that is formed by combining and weaving hollow synthetic fiber multifilament yarns and electroconductive multifilament yarns. At a portion where parts formed of the highly dense fabric are sewn together, there is interposed a low-melting-point, tape-like resin film between at least the hollow synthetic fiber multifilament yarns and the electroconductive multifilament yarns, and these three layers are machine-sewn together by at least two rows of stitches extending in the longitudinal direction of the tape-like resin film. Further, after the machine sewing, a seal structure is formed in the portion of the rows of stitches based on thermal fusion of the resin films.

Description

明 細 書  Specification
防塵衣服およびその製造方法  Dust-proof clothing and manufacturing method thereof
技術分野  Technical field
[0001] 本発明は、防塵衣服とその製造方法に関する。更に詳しくは、特に、半導体の製造 工場等のクリーンルーム内などで作業者が着用し作業をするのに最適な防塵衣服に 関するものであり、良好なフィルター性と制電性を有するとともに、優れた発塵の防止 効果と防塵性の向上効果を有する防塵衣服とその製造方法に関するものである。 背景技術  [0001] The present invention relates to a dust-proof garment and a method of manufacturing the same. More specifically, the present invention relates to dust-proof clothing that is most suitable for workers to wear and work in clean rooms such as semiconductor manufacturing factories. The present invention relates to a dustproof garment having a dusting prevention effect and a dustproofing improvement effect, and a method for manufacturing the same. Background art
[0002] 半導体等の電子機器や精密機器の製造工場内では、ミクロ粉塵あるいは異物など が製造工程で製品に入り込んだり、製品に付着したりすることによって、製造された 回路が使用中にトラブルを起こす可能性がある。また、食品製造工場にあっては、衛 生上の問題があるし、原子力発電所であれば、僅かな塵埃といえども重大な事故を 招きかねない。したがって、クリーンルーム内などで作業者が着用する防塵衣服には 、高度の防塵性能と制電性能を有することが要求される。  [0002] In a manufacturing factory for electronic equipment such as semiconductors and precision equipment, micro dust or foreign matter may enter the product during the manufacturing process or adhere to the product, causing problems in the produced circuit during use. There is a possibility of waking up. In addition, food manufacturing plants have health problems, and even a small amount of dust can cause a serious accident at a nuclear power plant. Accordingly, dust-proof clothing worn by workers in a clean room or the like is required to have high dust-proof performance and anti-static performance.
[0003] 従来、たとえば、導通性および制電性に優れた防塵衣として、経糸および Zまたは 緯糸として、合成繊維フィラメント糸条力 なる芯に導電性複合繊維糸をカノリングし た導電糸条を用いた織物を用いて縫製した防塵衣についての提案がされ、具体的 には、上記のカノリングとして、所謂ダブルカバリング糸を使用することや、導電性複 合繊維糸としてカーボンを含有した複合繊維糸を用いること、さらに、縫製の縫糸とし てもカーボンを含有した導電性複合繊維糸を使用することなどが提案されて ヽる (特 許文献 1)。  [0003] Conventionally, for example, as a dust-proof garment excellent in conductivity and anti-static property, as a warp and Z or weft, a conductive yarn in which a conductive composite fiber yarn is cannulated to a core that is a synthetic fiber filament yarn force is used. Proposals have been made on dust-proof garments sewn using woven fabrics. Specifically, so-called double covering yarns can be used as the above-mentioned canoring, and composite fiber yarns containing carbon as conductive composite fiber yarns can be used. In addition, it has been proposed to use conductive composite fiber yarns containing carbon as sewing threads (Patent Document 1).
[0004] しかし、この提案の防塵衣は、制電性の点では優れて ヽるものの、防塵性の点では 、縫い目の存在などによると考えられるが、毛羽飛散などによる発塵と防塵の点でい まだ改善の余地があるものであった。  [0004] However, although the proposed dust-proof garment is superior in terms of anti-static properties, it is thought that the dust-proof point is due to the presence of seams, etc., but the point of dust generation and dust prevention due to fluff scattering etc. However, there was still room for improvement.
[0005] また、編織物により構成される基底層と、該基底層上に接着され、無空タイプの高 吸収性ポリウレタン榭脂製フィルム力 なる中間層と、該中間層上に接着されて経糸 または緯糸方向に所定の間隔で導電糸が配列されるポリエステル高密度織物により 構成される外皮層とを有する 3層構造である半導体クリーンルーム用防塵生地と該生 地を用いた防塵服が提案されて ヽる (特許文献 2)。 [0005] Also, a base layer composed of a knitted fabric, an intermediate layer bonded to the base layer and made of a non-empty type superabsorbent polyurethane resin film, and a warp bonded to the intermediate layer Or polyester high-density fabric in which conductive yarns are arranged at predetermined intervals in the weft direction A dustproof fabric for a semiconductor clean room having a three-layer structure having a structured outer skin layer and a dustproof clothing using the raw material have been proposed (Patent Document 2).
[0006] しかし、この提案になる防塵生地は、生地全体に特殊な榭脂フィルム層を有するも のであり、着心地'着用感が良くなぐまた、縫製によって生ずる縫い目穴の存在は服 の内側において、皮脂や下着など力もの発生する塵が吹き出すという点ではマイナ ス要因であるものの、該縫い目穴の処置については何も工夫がなされていないもの であった。 [0006] However, the proposed dust-proof fabric has a special grease film layer on the entire fabric, so that it is not comfortable to wear, and the presence of a seam hole caused by sewing is found inside the clothing. Although it is a negative factor in that powerful dust such as sebum and underwear blows out, no measures have been devised for the treatment of the seam hole.
特許文献 1：特開平 11― 350296号公報  Patent Document 1: Japanese Patent Laid-Open No. 11-350296
特許文献 2：特開平 11― 189944号公報  Patent Document 2: Japanese Patent Laid-Open No. 11-189944
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0007] 本発明の目的は、良好なフィルター性と制電性を有するとともに、高度の発塵の防 止効果と防塵性の向上効果を有するとともに、着蒸れがなく着用感も良好な防塵衣 月 βとそのような防塵衣服を製造する方法を提供することにある。 [0007] An object of the present invention is to provide a dustproof garment that has good filter properties and antistatic properties, has a high level of dust generation prevention effect and dustproofness improvement effect, and has no moisture and good wearing feeling. Is to provide a method of manufacturing such a dust-proof garment.
課題を解決するための手段  Means for solving the problem
[0008] 上述した目的を達成する本発明の防塵衣服は、下記（1)の通りの構成を有するも のである。 [0008] The dust-proof garment of the present invention that achieves the above-described object has the following configuration (1).
(1)中空合成繊維マルチフィラメント糸と導電性マルチフィラメント糸とを少なくとも交 織した高密度織物生地をミシン縫製してなる防塵作業衣であり、該高密度織物生地 力 なるパーツ同士が縫合されている箇所は、少なくとも該高密度織物生地と該高密 度織物生地とがそれらの間に低融点のテープ状の榭脂フィルムを介在して、少なくと もそれら 3層が該テープ状榭脂フィルムの長手方向に延びる少なくとも 2列のステッチ ラインによってミシン縫合されていて、さらに、該ミシン縫合後、該ステッチライン部に ぉ 、て前記テープ状榭脂フィルムの熱溶融に基づくシール構造が形成されて 、るこ とを特徴とする防塵衣服。  (1) A dust-proof work garment formed by sewing a high-density woven fabric having at least a hollow synthetic fiber multifilament yarn and a conductive multifilament yarn woven together. At least the high-density woven fabric and the high-density woven fabric have a low-melting-point tape-shaped resin film between them, and at least three layers of the tape-shaped resin film The sewing machine is sewn by at least two rows of stitch lines extending in the longitudinal direction, and further, after the sewing machine is sewn, a seal structure based on the thermal melting of the tape-like resin film is formed on the stitch line part. Dust-proof clothing characterized by
[0009] また、力かる本発明の防塵衣服において、具体的により好ましくは、下記（2)〜（7) の!、ずれかに記載の具体的構成を有するものである。  [0009] In addition, the dustproof garment of the present invention that has strength, more preferably, has a specific configuration described in the following (2) to (7).
(2)高密度織物生地が、そのカバーファクターが 2600〜3200の範囲内のものであ ることを特徴とする上記（1)記載の防塵衣服。 (2) The high-density woven fabric has a cover factor in the range of 2600-3200. The dust-proof garment as described in (1) above.
(3)導電性マルチフィラメント糸力 該導電性マルチフィラメント糸中 8〜25重量％の カーボンブラックを添加されてなるものであることを特徴とする上記（1)または（2)記 載の防塵衣服。  (3) Conductive multifilament yarn strength The dustproof clothing described in (1) or (2) above, wherein 8 to 25% by weight of carbon black is added to the conductive multifilament yarn. .
(4)導電性マルチフィラメント糸が、高密度織物中において、該高密度織物の経糸お よび緯糸のそれぞれにおいて少なくともその一部として用いられて格子状に呈して存 在してなることを特徴とする上記（1)、 (2)または（3)記載の防塵衣服。  (4) The conductive multifilament yarn is used in at least a part of each of the warp and weft of the high-density fabric and presents in a lattice form in the high-density fabric. The dust-proof clothing according to (1), (2) or (3) above.
(5)高密度織物生地の少なくとも緯糸の一部に、非中空の合成繊維マルチフィラメン ト糸が使用されてなることを特徴とする上記（1)、（2)、（3)または (4)記載の防塵衣 服。  (5) The above (1), (2), (3) or (4), wherein a non-hollow synthetic fiber multifilament yarn is used for at least a part of the weft of the high-density fabric. The dust-proof clothing described.
(6)中空合成繊維の中空率が 20%〜65%であることを特徴とする上記（1)、（2)、 ( 3)、（4)または (5)記載の防塵衣服。  (6) The dust-proof garment according to (1), (2), (3), (4) or (5), wherein the hollow synthetic fiber has a hollowness of 20% to 65%.
(7)テープ状の榭脂フィルムの融点が 60°C〜140°Cであることを特徴とする上記（1) 、（2)、（3)、（4)、 (5)または (6)記載の防塵衣服。  (7) The above-mentioned (1), (2), (3), (4), (5) or (6), wherein the melting point of the tape-like resin film is 60 ° C to 140 ° C The dust-proof clothing described.
[0010] また、上述した目的を達成する本発明にかかる防塵衣服の製造方法は、下記 (8) の通りの構成を有するものである。  [0010] In addition, a method for manufacturing a dust-proof garment according to the present invention that achieves the above-described object has the following configuration (8).
(8)合成繊維マルチフィラメント糸と導電性マルチフィラメント糸とを少なくとも用いて 交織した高密度織物生地をミシン縫製して防塵作業衣を製造するに際して、前記合 成繊維マルチフィラメント糸として中空率が 20%〜65%の中空合成繊維を少なくとも 用いて、かつ前記高密度織物生地力 なるパーツ同士を縫合する箇所において、該 高密度織物生地力もなるパーツ同士の間に、融点が 60°C〜140°Cの榭脂からなる テープ状のフィルムを介在させ、少なくともそれら 3層を該テープ状榭脂フィルムの長 手方向に延びる少なくとも 2列のステッチラインを形成させたミシン縫合により縫製一 体化を行い、しカゝる後、該ステッチライン部を加熱して前記テープ状榭脂フィルムを 熱溶融させて該ステッチライン部をシールすることを特徴とする防塵衣服の製造方法  (8) When producing a dust-proof work garment by sewing a high-density woven fabric interwoven using at least synthetic fiber multifilament yarn and conductive multifilament yarn, the hollow ratio of the synthetic fiber multifilament yarn is 20%. % To 65% hollow synthetic fiber and at a location where the parts having the high density fabric dough strength are stitched together, the melting point is between 60 ° C and 140 ° between the parts having the high density fabric dough strength. A tape-like film made of C resin is interposed, and at least three layers are sewn together by sewing stitches that form at least two rows of stitch lines extending in the longitudinal direction of the tape-like resin film. After the sealing, the stitch line portion is heated to heat melt the tape-like resin film and seal the stitch line portion. The method of manufacturing clothes
[0011] また、力かる本発明の防塵衣服の製造方法において、具体的により好ましくは、下 記（9)〜（14)の 、ずれかに記載の具体的構成を有するものである。 (9) 中空合成繊維は、紡糸段階において、芯鞘型口金力 融点の異なるポリマー を用いて同時に紡糸し、鞘部には融点の高いポリマーを用い、芯部には融点の低い ポリマーを用い、この複合糸を染色段階でアルカリ処理し、低融点ポリマーを溶かし て除去することにより中空にすることを特徴とする上記 (8)記載の防塵衣服の製造方 法。 [0011] Further, in the manufacturing method of the dust-proof garment of the present invention, it is more preferable to have the specific configuration described in any one of the following (9) to (14). (9) At the spinning stage, hollow synthetic fibers are spun at the same time using polymers with different core-sheath base cap melting points, using a polymer with a high melting point for the sheath and a polymer with a low melting point for the core, The method for producing a dust-proof garment as described in (8) above, wherein the composite yarn is subjected to alkali treatment at the dyeing stage, and the low melting point polymer is melted and removed to form a hollow.
(10) 中空合成繊維は、紡糸段階において、芯部が中空になる円筒型の芯鞘型口 金から直接に紡糸することにより中空にすることを特徴とする上記 (8)記載の防塵衣 服の製造方法。  (10) The dust-proof garment according to (8), wherein the hollow synthetic fiber is hollowed by spinning directly from a cylindrical core-sheath die having a hollow core at the spinning stage. Manufacturing method.
(11) 高密度織物において、裏面にカレンダー加工を施して、通気量を 0. 3〜1. 0 cm3 /cm2 /secにすることを特徴とする上記（8)、 (9)または（10)記載の防塵衣服 の製造方法。 (11) The above-mentioned ( 8 ), (9) or (9), characterized in that in the high-density fabric, the back surface is calendered so that the air flow rate is 0.3 to 1.0 cm 3 / cm 2 / sec. 10) A method for producing the dust-proof garment.
(12) 高密度織物の生地全体に難燃加工を施すことを特徴とする上記 (8)、（9)、 ( 10)または（11)記載の防塵衣服の製造方法。  (12) The method for producing a dust-proof garment as described in (8), (9), (10) or (11) above, wherein the entire fabric of the high-density fabric is subjected to flame retardant processing.
(13) 高密度織物において、緯糸を経糸よりも細い糸繊度にして、緯糸織密度を経 糸織密度よりも大きくして、かつ、  (13) In a high-density fabric, the weft is made finer than the warp, the weft density is greater than the warp density, and
1. 2 X Df≤Dw≤3. O X Df  1. 2 X Df≤Dw≤3. O X Df
Df：緯糸の太さ（デシテックス）  Df: Weft thickness (decitex)
Dw:経糸の太さ（デシテックス）  Dw: Thickness of warp (decitex)
の条件を満足させることを特徴とする上記 (8)、（9)、（10)、（11)または（12)記載の 防塵衣服の製造方法。  The method for producing a dust-proof garment according to (8), (9), (10), (11) or (12), characterized in that the following condition is satisfied.
(14) 高密度織物において、緯糸に非中空の合成繊維マルチフィラメント糸を用い て、かつ、緯糸織密度を経糸織密度よりも大きくすることを特徴とする上記 (8)、（9)、 (10)、（11)、（12)または（13)記載の防塵衣服の製造方法。  (14) The above-mentioned (8), (9), (9), characterized in that in the high-density fabric, a non-hollow synthetic fiber multifilament yarn is used for the weft and the weft weave density is higher than the warp weave density. 10), (11), (12) or (13).
発明の効果  The invention's effect
[0012] 請求項 1にかかる本発明によれば、良好なフィルター性と制電性を有するとともに、 優れた発塵の防止効果と防塵性の向上効果を有し、さらに着用感においても良好な 防塵衣服を提供することができる。  [0012] According to the present invention of claim 1, while having good filter properties and antistatic properties, it has an excellent dust generation prevention effect and dustproof improvement effect, and also has a good wearing feeling. Dust-proof clothing can be provided.
[0013] さらに、特に請求項 2に記載の本発明によれば、請求項 1にかかる防塵衣が持つ特 性に加えて、織物生地構造的に優れた防塵効果と発塵防止効果とを有する防塵衣 を提供することができる。 [0013] Furthermore, in particular, according to the present invention described in claim 2, the characteristics of the dust-proof garment according to claim 1 are as follows. In addition to the properties, it is possible to provide a dust-proof garment having a dust-proof effect and a dust-preventing effect that are superior in terms of the structure of the woven fabric.
[0014] さらに、特に請求項 3に記載の本発明によれば、請求項 1から 2のいずれかにかか る防塵衣が持つ特性に加えて、より制電効果に優れた防塵衣を提供することができ る。  [0014] Further, according to the present invention of claim 3, in particular, in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 2, a dust-proof garment having a more excellent antistatic effect is provided. can do.
[0015] さらに、特に請求項 4に記載の本発明によれば、請求項 1から 3のいずれかにかか る防塵衣が持つ特性に加えて、より制電効果に優れた防塵衣を提供することができ る。  [0015] Further, according to the present invention described in claim 4, in particular, in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 3, a dust-proof garment having a more excellent antistatic effect is provided. can do.
[0016] さらに、特に請求項 5に記載の本発明によれば、請求項 1から 4のいずれかにかか る防塵衣が持つ特性に加えて、より強度が高く作業用の衣服としてより優れた防塵衣 を提供することができる。  [0016] Further, according to the present invention of claim 5, in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 4, it is stronger and more excellent as work clothes. Dust-proof clothing can be provided.
[0017] さらに、特に請求項 6に記載の本発明によれば、請求項 1から 5のいずれかにかか る防塵衣が持つ特性に加えて、防塵衣全体を軽量化でき、かつ合成繊維固有の強 度を発揮することができる防塵衣を提供することができる。 [0017] Further, in particular, according to the present invention of claim 6, in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 5, the entire dust-proof garment can be reduced in weight, and the synthetic fiber It is possible to provide a dust-proof garment that can exhibit its inherent strength.
[0018] さらに、特に請求項 7に記載の本発明によれば、請求項 1から 6のいずれかにかか る防塵衣が持つ特性に加えて、熱溶融をより簡易により効果的に行うことができる防 塵衣を提供することができる。 [0018] Further, in particular, according to the present invention of claim 7, in addition to the characteristics of the dust-proof garment according to any one of claims 1 to 6, heat melting can be performed more simply and effectively. It is possible to provide a dust-proof garment that can be used.
[0019] 請求項 8にかかる本発明によれば、良好なフィルター性と制電性を有するとともに、 優れた発塵の防止効果と防塵性の向上効果を発揮することができる優れた防塵衣服 を製造することができるものである。 [0019] According to the present invention of claim 8, there is provided an excellent dustproof garment having excellent filter properties and antistatic properties, and capable of exhibiting an excellent dusting prevention effect and a dustproof improvement effect. It can be manufactured.
[0020] さらに、特に請求項 9に記載の本発明によれば、請求項 8にかかる防塵衣服の製造 方法が持つ特性に加えて、中空合成繊維をより効率的に作製できる防塵衣服の製 造方法を提供することができる。 [0020] Furthermore, according to the present invention described in claim 9, in addition to the characteristics of the method for manufacturing a dust-proof garment according to claim 8, production of the dust-proof garment capable of more efficiently producing hollow synthetic fibers. A method can be provided.
[0021] さらに、特に請求項 10に記載の本発明によれば、請求項 8にかかる防塵衣服の製 造方法が持つ特性に加えて、中空合成繊維をより効率的に作製できる防塵衣服の 製造方法を提供することができる。 [0021] Furthermore, according to the present invention described in claim 10, in addition to the characteristics of the method for manufacturing a dust-proof garment according to claim 8, the manufacture of dust-proof garment capable of more efficiently producing hollow synthetic fibers. A method can be provided.
[0022] さらに、特に請求項 11に記載の本発明によれば、請求項 8から 10のいずれかにか 力る防塵衣服の製造方法が持つ特性に加えて、通気性に優れた防塵衣服の製造方 法を提供することができる。 [0022] Further, according to the present invention as set forth in claim 11, in addition to the characteristics possessed by the method for manufacturing a dust-proof garment according to any one of claims 8 to 10, a dust-proof garment having excellent breathability is provided. Manufacturing method Law can be provided.
[0023] さらに、特に請求項 12に記載の本発明によれば、請求項 8から 11のいずれかにか 力る防塵衣服の製造方法が持つ特性に加えて、より安全性が高!、防塵衣服の製造 方法を提供することができる。  [0023] Further, according to the present invention of claim 12, in addition to the characteristics of the dust-proof garment manufacturing method according to any one of claims 8 to 11, the safety is higher and the dust-proof A method for manufacturing clothes can be provided.
[0024] さらに、特に請求項 13に記載の本発明によれば、請求項 8から 12のいずれかにか 力る防塵衣服の製造方法が持つ特性に加えて、より強度が高く作業用の衣服として より優れた防塵衣服の製造方法を提供することができる。 [0024] Further, according to the present invention as set forth in claim 13, in addition to the characteristics possessed by the method for producing a dust-proof garment according to any one of claims 8 to 12, the garment for work having higher strength is provided. As a result, it is possible to provide a more excellent method for producing dust-proof clothing.
[0025] さらに、特に請求項 14に記載の本発明によれば、請求項 8から 13のいずれかにか 力る防塵衣服の製造方法が持つ特性に加えて、より強度が高く作業用の衣服として より優れた防塵衣服の製造方法を提供することができる。 [0025] Further, according to the present invention as set forth in claim 14, in addition to the characteristics possessed by the method for producing a dust-proof garment according to any one of claims 8 to 13, the garment for work having higher strength is provided. As a result, it is possible to provide a more excellent method for producing dust-proof clothing.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0026] 以下、更に詳しぐ本発明の防塵衣とその製造方法について説明する。本発明の 防塵衣は、中空率が 20%〜65%の中空合成繊維を少なくとも用いて成る中空合成 繊維マルチフィラメント糸と導電性マルチフィラメント糸とを少なくとも用 ヽて交織した 高密度織物からなる生地をミシン縫製してなるものである。  [0026] Hereinafter, the dust-proof garment of the present invention and the manufacturing method thereof will be described in more detail. The dust-proof garment of the present invention is a fabric made of a high-density fabric obtained by interweaving at least a hollow synthetic fiber multifilament yarn and a conductive multifilament yarn using at least hollow synthetic fibers having a hollow ratio of 20% to 65%. The sewing machine is sewn.
[0027] 中空合成繊維マルチフィラメント糸を用いると、防塵衣全体を軽量化でき、かつ合 成繊維固有の強度を発揮するのに効果があり、さらに、長繊維のフィラメント糸を使 用することにより毛羽が抜けないので、該防塵衣服自体からの毛羽飛散による発塵 が極力ないようにできる。中空率は、好ましくは 30%〜40%である。  [0027] The use of hollow synthetic fiber multifilament yarn is effective in reducing the weight of the entire dust-proof garment and exerting the inherent strength of the synthetic fiber. Further, by using filament yarn of long fiber, Since the fluff does not come off, dust generation due to the fluff scattering from the dust-proof clothing itself can be minimized. The hollow ratio is preferably 30% to 40%.
[0028] ここで、本発明に用いる「中空合成繊維マルチフィラメント糸」とは、多数の単糸フィ ラメントが集合して構成される糸であり、中空とは、各単糸フィラメントの断面方向に空 洞部を有するものをいう。また、中空率 H (%)の算出方法については後述する。  [0028] Here, the "hollow synthetic fiber multifilament yarn" used in the present invention is a yarn composed of a large number of single yarn filaments, and the hollow is defined in the cross-sectional direction of each single yarn filament. It has a cavity. A method for calculating the hollowness ratio H (%) will be described later.
[0029] 本実施形態では、中空合成繊維は、紡糸段階において、芯鞘型口金から融点の 異なるポリマーを用いて同時に紡糸する。この際、鞘部には融点の高いポリマー、例 えば、ポリエチレンテレフタレートを用い、芯部には融点の低いポリマー、例えばカチ オンポリマーを用いる。この糸は一般に複合糸とよばれ、この複合糸を染色段階でァ ルカリ処理し、低融点ポリマーを溶力して除去することにより中空にする。  [0029] In this embodiment, the hollow synthetic fiber is simultaneously spun from the core-sheath die using polymers having different melting points in the spinning stage. At this time, a polymer having a high melting point, for example, polyethylene terephthalate is used for the sheath, and a polymer having a low melting point, for example, a cation polymer is used for the core. This yarn is generally called a composite yarn, and this composite yarn is subjected to alkali treatment at the dyeing stage, and the low melting point polymer is melted and removed to make it hollow.
[0030] また、中空合成繊維の材質は、ポリエステル、ポリエチレンテレフタレート、ポリブチ レンテレフタレート、ポリアミド等を採用することができ、断面形状は、円形、ラグビー ボール形 (楕円形）、ダブルラグビーボール形（∞形）、三角形、八角形等のものがあ る。そして、中空合成繊維マルチフィラメント糸の撚糸は甘撚り数 250tZm以下で、 通常のリングツイスター MZC、糸速 30mZ分で行う。 [0030] The material of the hollow synthetic fiber is polyester, polyethylene terephthalate, polybuty Lenterephthalate, polyamide, etc. can be used, and the cross-sectional shapes include circular, rugby ball (elliptical), double rugby ball (∞), triangular, octagonal, etc. The hollow synthetic fiber multifilament yarn is twisted with a sweet twist number of 250 tZm or less, a normal ring twister MZC, and a yarn speed of 30 mZ.
[0031] なお、本実施形態では、紡糸段階で芯部が中空になるようにした「円筒型口金」を 用 、て紡糸した中空合成繊維を用いることもできる。 In this embodiment, a hollow synthetic fiber spun by using a “cylindrical die” in which the core is hollow at the spinning stage can also be used.
[0032] また、中空合成繊維自体に導電性を持たせるために、導電成分 (例えば、金属粉） を粉末にしたものを繊維のポリマー中に練り込むこともできる。 [0032] In addition, in order to impart conductivity to the hollow synthetic fiber itself, a conductive component (for example, metal powder) powdered can be kneaded into the fiber polymer.
[0033] しかし、比抵抗値が大きぐ導電性の性能がやや劣るため、導電性フィラメント糸と の組み合わせ、例えば、円形断面の合成繊維マルチフィラメント糸あるいはこの糸を 仮撚り加工したものを引き揃えてリングツイスターで撚り数 250tZm以下で合撚して 作製することができる。 [0033] However, since the conductive performance with a large specific resistance value is slightly inferior, a combination with a conductive filament yarn, for example, a synthetic fiber multifilament yarn having a circular cross section or a false twisted version of this yarn is aligned. Can be produced by twisting with a ring twister at a twist of 250 tZm or less.
[0034] 前述した高密度織物生地は、防塵衣服として縫製されるに際して、その生地パーツ 同士が縫合される箇所には、少なくとも該高密度織物生地と該高密度織物生地との 間にテープ状の融点が 60°C〜 140°Cの榭脂フィルムを介在させて、少なくともそれら の 3層が該テープ状榭脂フィルムの長手方向に延びる少なくとも 2列のステッチライン によってミシン縫合されて一体ィ匕されるようにすることが重要である。  [0034] When the above-described high-density woven fabric is sewn as a dust-proof garment, at a location where the fabric parts are sewn together, a tape-like shape is provided at least between the high-density woven fabric and the high-density woven fabric. A resin film having a melting point of 60 ° C to 140 ° C is interposed, and at least three layers thereof are sewn together by sewing with at least two rows of stitch lines extending in the longitudinal direction of the tape-shaped resin film. It is important to do so.
[0035] 図 1は、本発明の防塵衣服の一例を示した概略正面図であり、特に限定されるもの ではないが、本発明の防塵衣服 1は、例えば、上下の繋ぎ服スタイルで形成される。 図 1に示したものはサイドファスナー型のものである力 センターファスナー型のもの であってもよい。 2はミシン縫合されたときのステッチラインを示したものであり、該ライ ンに沿ってミシン目が存在しているものである。  [0035] FIG. 1 is a schematic front view showing an example of the dust-proof garment of the present invention. Although not particularly limited, the dust-proof garment 1 of the present invention is formed in, for example, an upper and lower coverall style. The The one shown in FIG. 1 may be a force center fastener type which is a side fastener type. Reference numeral 2 denotes a stitch line when the sewing machine is sewn, and a perforation exists along the line.
[0036] ミシン縫合は、図 2にステッチラインの延びる方向と直交する方向の概略モデル断 面図を示したように、高密度織物生地同士を縫合する箇所には、高密度織物生地パ ーッ 3、 4同士の間にテープ状の融点が 60°C〜140°Cの榭脂フィルム 5を介在させて 、少なくともそれらの 3層力 該テープ状榭脂フィルム 5の長手方向に延びる少なくと も 2列のステッチライン 6によってミシン縫合をするものであり、図 2に示したように、そ れぞれの生地パーツ 3、 4の端部を内側に折り曲げてその折り曲げ部の中に榭脂フィ ルム 5を介在させる構造で縫合させる卷縫 ヽ等が、縫 、目部分の強度も大きくでき、 好ましいものである。この際、卷縫いのほかに、本縫い、二重環縫い、単環縫い等の ステッチラインでもよい。なお、縫い糸に防塵糸を使用することは、縫い目強度が小さ くなるため、適切ではない。 [0036] As shown in the schematic model cross-sectional view in the direction orthogonal to the direction in which the stitch line extends in FIG. 2, the sewing machine stitching is performed at the location where the high-density fabric cloths are stitched together. 4 and at least the three-layer force of the resin film 5 having a tape-like melting point of 60 ° C. to 140 ° C. is interposed between the four, and at least 2 extending in the longitudinal direction of the tape-like resin film 5. As shown in Fig. 2, the end of each fabric part 3 and 4 is folded inward, and the grease filter is inserted into the folded part. A scissors or the like that are sewn with a structure that interposes the rumm 5 is preferable because it can increase the strength of the stitches and the eyes. In this case, stitch lines such as main stitching, double chain stitching, and single ring stitching may be used in addition to saddle stitching. It is not appropriate to use a dustproof thread for the sewing thread because the seam strength is reduced.
[0037] そして、該ミシン縫合による一体ィ匕の後、該ステッチライン部に対して、例えば、高 周波ミシンあるいは超音波熱溶着機などを用いて加熱ローラー、加熱板等によって 加熱し、テープ状榭脂フィルムを熱融着させ、該溶融した榭脂がミシン目や凹部など に入り込み、再び固化することによりステッチライン部をシールする構造を形成せしめ るものである。 [0037] After the stitching by the sewing machine, the stitch line portion is heated with a heating roller, a heating plate, or the like using, for example, a high-frequency sewing machine or an ultrasonic heat welding machine to form a tape shape. A resin film is heat-sealed, and the melted resin enters perforations and recesses and is solidified again to form a structure that seals the stitch line portion.
[0038] テープ状榭脂フィルムを縫 、目部に融着させる条件は、例えば、  [0038] The conditions for sewing the tape-like resin film and fusing it to the eyes are, for example,
MZC:超音波熱溶着機  MZC: Ultrasonic heat welding machine
温度： 120°C  Temperature: 120 ° C
時間： 1 sec  Time: 1 sec
である。  It is.
[0039] しかして、該シールによりミシン縫い目の穴や凹部が塞がり、縫い目穴や凹部から 発塵することが良好に防止できることとなる。  [0039] Therefore, it is possible to satisfactorily prevent dust from being generated from the seam hole or recess by closing the hole or recess of the seam seam by the seal.
[0040] この熱溶融をより簡易にかつより効果的に行うために、榭脂フィルムの融点は、 60 〜140°C程度のものを用いるのが良ぐさらに一般に、防塵衣本体を構成する織物 生地の合成繊維の融点とは、 120°C〜200°C程度の融点差があるものを用いるのが 良い。両者の融点が近いと、防塵衣本体を構成する織物生地に対しても溶融効果を 与えることとなり、該ステッチライン部での風合いゃタツチが損なわれ、着用感に劣る 場合があり好ましくない。融点差を出すために用いる各ポリマーの融点は、例えば、 融点の高いポリマーとしては、ポリエチレンテレフタレートが 240°Cである一方、融点 の低 、ポリマーとしては、酢酸エチレンビュル共重合体が 90°Cである。  [0040] In order to perform this heat melting more easily and more effectively, it is preferable to use a resin film having a melting point of about 60 to 140 ° C. It is preferable to use a material having a melting point difference of about 120 ° C to 200 ° C as the melting point of the synthetic fiber of the fabric. If the melting points of the two are close to each other, a melting effect is imparted to the woven fabric constituting the dust-proof garment body, and if the texture at the stitch line part is touched, the feeling of wearing may be inferior. For example, polyethylene terephthalate has a melting point of 240 ° C as a polymer having a high melting point, whereas ethylene butyl acetate copolymer has a melting point of 90 ° C as a polymer having a low melting point. It is.
[0041] 該榭脂フィルムは、上述した融点が 60〜140°Cの範囲を有する、いわゆる低融点 フィルムを使用することができ、いわゆるエチレン—酢酸ビュル共重合体榭脂からな るフィルムや、ポリアミド、ポリスチレン、ポリエチレン、酢酸セルロース、ポリウレタン、 ポリブチレンテレフタレートなどの低融点榭脂フィルムを使用することができる。該フィ ルムは、融点が上述した範囲内のものであるほかに、テープ状を呈していることが重 要であり、該テープの幅は 5mm〜15mm、厚さは 30〜： LOO m程度のものを用いる ことがよいちのである。 [0041] As the resin film, a so-called low-melting film having a melting point of 60 to 140 ° C as described above can be used, and a film made of a so-called ethylene-acetic acid copolymer resin resin, Low melting point resin films such as polyamide, polystyrene, polyethylene, cellulose acetate, polyurethane, and polybutylene terephthalate can be used. The fi In addition to having a melting point within the above-mentioned range, it is important that the rum is in the form of a tape. The tape should have a width of 5 mm to 15 mm and a thickness of 30 to about LOO m. It is good to use.
[0042] 本発明の防塵衣服において、高密度織物生地のカバーファクターが 2600〜3200 の範囲内のものであるものを用いるの力 生地自体の性能としての防塵効果、発塵 防止効果を良好に得る上で好ましい。特に好ましくは、該カバーファクターが 2800 〜3000の範囲内のものを用いることである。  [0042] In the dust-proof garment of the present invention, the ability to use a high-density fabric cloth with a cover factor in the range of 2600 to 3200. Good dust-proofing effect and dust-preventing effect as the performance of the fabric itself. Preferred above. Particularly preferably, the cover factor is in the range of 2800 to 3000.
[0043] また、導電性マルチフィラメント糸は、良好な制電性を実現する上で、該導電性マ ルチフィラメント糸中 8〜25重量％のカーボンブラックあるいは白色カーボンを添カロさ れているものを用いることが好ましい。より好ましくは、導電性マルチフィラメント糸中 に 15重量％〜20重量％のカーボンブラックあるいは白色カーボンを添カ卩したものを 用いるのがよぐ特に、該カーボンが露出した状態で存在しているものがよぐ総繊度 (マルチフィラメント糸としての繊度）は 17デシテックス〜 28デシテックスで、フィラメン ト数が 3〜5本のマルチフィラメント糸の状態のものがよい。例えば、このような導電性 マルチフィラメント糸は、ポリエステル成分 80重量％に対してカーボンブラックまたは 白色カーボンが 20重量％の比率で含有されている導電性フィラメント繊維などを使 用することが好ましい。例えば、そのような導電性繊維としては、商品名「クラカーボ（ 株式会社クラレ、登録商標）」、「クラカーボ (株式会社クラレ、登録商標) II」、「セルメ ック (株式会社クラレ、登録商標)」、「ベルトロン (カネボウ合繊株式会社、登録商標） 」として市販されているものなどが該当する。導電性マルチフィラメント糸は、織物生 地全重量に対してカーボン成分の重量比として、 1重量％〜4重量％の範囲内の使 用比率で用いられるのがよ 、。  [0043] In addition, the conductive multifilament yarn has a carbon black or white carbon added thereto in an amount of 8 to 25% by weight in the conductive multifilament yarn in order to achieve good antistatic properties. Is preferably used. More preferably, a conductive multifilament yarn with 15% to 20% by weight of carbon black or white carbon added is used. Particularly, the carbon is present in an exposed state. The total fineness (fineness as a multifilament yarn) should be 17 decitex to 28 decitex, and 3 to 5 filaments. For example, such a conductive multifilament yarn preferably uses conductive filament fibers containing carbon black or white carbon at a ratio of 20% by weight to 80% by weight of the polyester component. For example, such conductive fibers include trade names “Kurabobo (Kuraray Co., Ltd., registered trademark)”, “Kurabobo (Kuraray Co., Ltd., registered trademark) II”, “Celmec (Kuraray Co., Ltd., registered trademark)”. "," Bertron (Kanebo Gosei Co., Ltd., registered trademark) "and the like. Conductive multifilament yarn should be used at a usage ratio within the range of 1 to 4% by weight as the weight ratio of the carbon component to the total weight of the fabric.
[0044] この際、アルミや銅を細く長い糸状にしたものが考えられる力 耐摩耗、耐屈曲に弱 いこと、切断されたアルミや銅が肌に障害を起こすおそれがあり、好ましくないからで ある。また、銅などを繊維の表面に接着させる方法があるが、耐洗濯性に対して剥離 を起こすおそれがあり好ましくな 、。  [0044] At this time, it is possible to use a thin and long thread of aluminum or copper. It is not preferable because it is weak against abrasion and bending, and cut aluminum or copper may damage the skin. is there. Also, there is a method of adhering copper or the like to the fiber surface, but there is a possibility of causing peeling with respect to washing resistance.
[0045] 該導電性マルチフィラメント糸は、高密度織物中において、 3mn！〜 15mm程度の 一定間隔をおいて、ストライプ (シマ柄)状に存在しているようなものでもよいが、高密 度織物の経糸および緯糸として用いられて、上述と同様の経および緯の一定間隔（3 mn！〜 15mm程度)で格子状を呈して存在するようにすることがより良好な制電性付 与効果を得る上で好ましい。すなわち、格子状とする場合においても、経方向、緯方 向のそれぞれとも 3mn！〜 15mm程度として用いるのが好ましぐより好ましくは、 5m m〜 10mm程度の一定間隔をお!/、て、導電性マルチフィラメント糸が存在するように 製織するのがよい。 [0045] The conductive multifilament yarn is 3mn! It may be a stripe (striped pattern) at regular intervals of ~ 15mm, but it is highly dense. It is used as a warp and weft of a woven fabric, and it is better to have a lattice shape at regular intervals (about 3 mn! To 15 mm) of warp and weft as described above. It is preferable for obtaining the effect. In other words, even in the case of a lattice, both the longitudinal direction and the weft direction are 3mn! It is preferable to use it as about 15 mm, and it is more preferable to use a constant interval of about 5 mm to 10 mm and to weave so that the conductive multifilament yarn exists.
[0046] 本発明の導電性マルチフィラメント糸を使用した場合における制電性効果は次のと おりである。  [0046] The antistatic effect when the conductive multifilament yarn of the present invention is used is as follows.
導電性マルチフィラメント糸 摩擦帯電圧 (V)  Conductive multifilament yarn Frictional voltage (V)
ストライプ状 15mm間隔 3000  Striped 15mm spacing 3000
ストライプ状 10mm間隔 2500  Striped 10mm interval 2500
ストライプ状 5mm間隔 2000  Striped 5mm spacing 2000
格子状 5mm間隔 800  Lattice 5mm interval 800
格子状 10mm間隔 1000  Lattice 10mm interval 1000
[0047] 一方、中空率が 20%〜65%の中空合成繊維を少なくとも用いて成る中空合成繊 維マルチフィラメント糸は、少なくとも経糸に用いられていることが重要であり、緯糸に は、非中空の合成繊維マルチフィラメント糸を用いてもょ 、。 [0047] On the other hand, it is important that a hollow synthetic fiber multifilament yarn comprising at least a hollow synthetic fiber having a hollow ratio of 20% to 65% is used for at least warp yarn, and for the weft yarn, non-hollow Use synthetic fiber multifilament yarn.
[0048] 該中空合成繊維マルチフィラメント糸を用いることにより、本発明にかかる防塵衣服 をより軽量な快適なものとすることができ、特に、より高度な軽量ィ匕を狙うのであれば、 経糸および緯糸の双方に該中空合成繊維マルチフィラメント糸を用いて、前述した 導電性マルチフィラメント糸と併用することが好ましいものである。特に、本発明にか 力る防塵衣服が、半導体等の電子機器の製造工場内や精密機器の製造工場内、あ るいは食品製造工場内などで着用される作業衣服である場合には、軽量であること に基づぐ！1夬適性や自由運動性、安全性の点で、経糸および緯糸の双方に用いること が望ましい。 [0048] By using the hollow synthetic fiber multifilament yarn, the dust-proof garment according to the present invention can be made lighter and more comfortable. It is preferable that the hollow synthetic fiber multifilament yarn is used for both the wefts and used in combination with the conductive multifilament yarn described above. In particular, if the dust-proof clothing that can be applied to the present invention is work clothing worn in a manufacturing factory for electronic devices such as semiconductors, a manufacturing factory for precision equipment, or a food manufacturing factory, it is lightweight. Based on being! 1夬適property and free mobility in terms of safety, it is desirable to use for both the warp and weft.
[0049] もし、作業内容などから、防塵衣服として、その生地強度（引裂き強度等)がより高 V、ことが有効である作業衣服の場合には、経糸には中空合成繊維マルチフィラメント 糸を用いて、かつ少なくとも緯糸の一部には非中空の合成繊維マルチフィラメント糸 を適宜に用いることが望ま U、ものである。 [0049] If it is effective for the work clothes to have a higher fabric strength (tear strength, etc.) as a dust-proof garment, it is recommended to use hollow synthetic fiber multifilament yarn for the warp. And at least part of the weft is a non-hollow synthetic fiber multifilament yarn It is desirable to use these as appropriate.
[0050] 力かる高密度織物組織は、概ねカバーファクターで表現できるけれども、具体的な 織物組織としては、平織、ツイル、サテン、これらの変化組織、または二重組織が該 当する。また、高密度織物組織は、経糸、緯糸をできる限り 1インチ間に収めるとよい[0050] Although a strong high-density fabric structure can be generally expressed by a cover factor, examples of the specific fabric structure include plain weave, twill, satin, their changed structure, and double structure. Also, for high-density fabric structures, warp and weft yarns should be contained within 1 inch as much as possible.
1S 逆に風合いが硬くなり、引き裂き強度が弱くなるマイナス面があるため、糸の選定 、太さ、フィラメント数などを総合的に考慮して決定すべきである。 1S On the other hand, since there is a downside that the texture becomes harder and the tearing strength weakens, it should be determined by comprehensively considering the selection of yarn, thickness, and the number of filaments.
[0051] なお、ポリエステルなどの合成繊維マルチフィラメント糸は、耐摩耗性に優れて!/、る ため、擦れた際にも毛羽が発生しない。  [0051] It should be noted that synthetic fiber multifilament yarns such as polyester are excellent in abrasion resistance! /, And therefore do not generate fluff even when rubbed.
[0052] 本発明の防塵衣服の製造方法は、合成繊維マルチフィラメント糸と導電性マルチフ イラメント糸とを少なくとも用いてこれらの糸を交織した高密度織物生地をミシン縫製 して防塵作業衣を製造するに際して、該合成繊維マルチフィラメント糸として中空率 が 20%〜65%の中空合成繊維を用いて、かつ前記高密度織物生地力もなるパーツ 同士を縫合する箇所において、該高密度織物生地力もなるパーツ同士の間に、融点 力 S60°C〜140°Cの榭脂力 なるテープ状のフィルムを介在させ、少なくともそれら 3 層を該テープ状榭脂フィルムの長手方向に延びる少なくとも 2列のステッチラインを 形成させたミシン縫合により縫製一体ィ匕を行い、しかる後、該ステッチライン部を加熱 して前記テープ状榭脂フィルムを熱溶融させて該ステッチライン部をシールするもの である。  [0052] The dust-proof garment manufacturing method of the present invention manufactures a dust-proof work garment by sewing a high-density woven fabric obtained by interweaving at least synthetic fiber multifilament yarn and conductive multifilament yarn, and sewing these yarns. At the time of using the synthetic fiber multifilament yarn as a hollow synthetic fiber having a hollow ratio of 20% to 65% and stitching the parts having the high density fabric cloth force, the parts having the high density fabric cloth force Between them, a tape-like film having a melting power of S60 ° C to 140 ° C is interposed, and at least two of these layers form a stitch line extending in the longitudinal direction of the tape-like resin film. The stitching unit is stitched by the stitched sewing machine, and then the stitch line portion is heated to melt the tape-like resin film and melt the stitch line. The part is sealed.
[0053] この熱シールによって、着用者'作業者の身体やその他の衣類等から発生する塵 埃が当該防塵衣服の外に漏れていくことを良好に防止することができるので、非常に 高 、発塵防止効果を得ることができる。  [0053] This heat seal can favorably prevent dust generated from the wearer's worker's body and other clothing from leaking out of the dust-proof clothing. A dust generation preventing effect can be obtained.
[0054] 本発明にカゝかる防塵衣服には、防汚処理や、難燃化処理あるいは不燃化処理など を適宜施すことができる。該処理は、防塵衣服段階、織物生地段階、縫糸段階など においてすることができる。本発明では、高密度織物生地全体に難燃剤浸漬による 難燃加工を施すものであり、該難燃加工のレベルは、難燃性を表すパラメータ値であ る LOI値（limiting- oxygen- index:限界酸素指数）で、 32〜38を示すレベルであるこ とが好ましい。  [0054] The dust-proof clothing according to the present invention can be appropriately subjected to antifouling treatment, flame retardancy treatment, or incombustibility treatment. The treatment can be performed in a dustproof garment stage, a woven fabric stage, a sewing thread stage, or the like. In the present invention, the entire high-density fabric is subjected to flame retardant processing by immersing the flame retardant, and the level of the flame retardant processing is a LOI value (limiting-oxygen-index: parameter value indicating flame retardancy). The limit oxygen index) is preferably a level of 32 to 38.
[0055] 力かる難燃特性は、高密度織物を製織した後、カレンダー加工の前あるいは後に、 該生地全体に難燃剤の処理液を浸漬 (浸透)させることにより付与することが好ましい 。この処理方法としては、難燃剤処理液の浴槽中に高密度織物を通過させるデイツ プ処理が最も好ましいが、それらと同様の効果を得るレベルでのスプレー処理 '散布 処理であっても良い。 [0055] Powerful flame retardant properties include: after weaving a high density fabric, before or after calendering, It is preferable to apply by immersing (penetrating) the flame retardant treatment liquid into the entire dough. As this treatment method, a dip treatment in which a high-density fabric is allowed to pass through a bath of a flame retardant treatment solution is most preferable, but a spray treatment or a spray treatment at a level at which the same effect as those can be obtained may be used.
[0056] また、難燃剤は、従来力も知られているものを使用することができ、特に限定される ものではないが、例えば、ホウ酸ナトリウム重合体、ケィ酸ナトリウム重合体、燐酸グァ 二ジン誘導体、含硫黄窒素化合物、リン酸エステルアミド、あるいは芳香族縮合リン 酸エステルイ匕合物などを使用することができる。特に、 LOI値で 32〜38を示すレべ ルのものにするには、上記の難燃剤を用いて、かつ、付与量を、一般的には、 l〜4g / とすることにより、所望の難燃性能を得ることができる。  [0056] Further, as the flame retardant, those known in the art can be used, and are not particularly limited. For example, sodium borate polymer, sodium silicate polymer, guanidine phosphate Derivatives, sulfur-containing nitrogen compounds, phosphoric acid ester amides, aromatic condensed phosphoric acid ester compounds and the like can be used. In particular, in order to obtain a LOI value of 32 to 38, the above flame retardant is used, and the applied amount is generally 1 to 4 g / Flame retardant performance can be obtained.
[0057] そして、さらに該高密度織物生地は、裏面がカレンダー加工されて 、ることが重要 であり、該カレンダー加工は、「織り目つぶし加工」とも言えるものであり、通気量が 0. 3〜 1. Ocm3 /cm2 Zsecの範囲内になるように調整することができる。 [0057] Further, it is important that the back surface of the high-density woven fabric is calendered. The calendering can also be called "weaving processing", and the air flow rate is 0.3 to 1. It can be adjusted to be within the range of Ocm 3 / cm 2 Zsec.
[0058] 通常、このようなカレンダー加工を施さない単なる高密度織物の場合、通気量は、 1 . 2〜1. 8cm3 Zcm2 Zsec程度のレベルである。該カレンダー加工は、発塵防止性 と防塵性能の両者の向上効果をもたらすものであり、前述のとおり生地裏面に対して 施すことが重要であり、表面には必要であれば施しても良い。裏面に施すことにより 上述の通気特性 (通気量)を得ることが技術趣旨だ力もである。なお、このカレンダー 加工を行うためには、特に限定されるものではないが、鏡面ローラーに織物生地を圧 接させつ、通過させることなどにより行う。 [0058] Usually, in the case of a simple high-density fabric not subjected to such calendering, the air flow rate is about 1.2 to 1.8 cm 3 Zcm 2 Zsec. The calendering has the effect of improving both dust generation prevention and dust prevention performance, and as described above, it is important to apply it to the back surface of the fabric, and the surface may be applied if necessary. Obtaining the above-mentioned ventilation characteristics (aeration volume) by applying to the back surface is also a force of technical purpose. The calendering process is not particularly limited, but it is performed by passing the cloth fabric through a mirror roller while pressing it.
[0059] さらにまた、高密度織物において、緯糸を経糸よりも細い糸繊度にして、緯糸織密 度を経糸織密度よりも大きくして、強度を向上させることができる。この際、好ましくは  [0059] Furthermore, in a high-density fabric, the weft can be made finer than the warp, and the weft density can be made larger than the warp density to improve the strength. At this time, preferably
1. 2 X Df≤Dw≤3. O X Df 1. 2 X Df≤Dw≤3. O X Df
Df：緯糸の太さ（デシテックス）  Df: Weft thickness (decitex)
Dw:経糸の太さ（デシテックス）  Dw: Thickness of warp (decitex)
の条件を満足させると良い。  It is good to satisfy the conditions.
[0060] なお、以上の説明において、中空合成繊維の中空率（％)、織物生地のカバーファ クタ一、融点、カーボンの含有量 (重量％)の各値は、それぞれ下記する方法で測定 して得られる値である。 [0060] In the above description, the hollow ratio (%) of the hollow synthetic fiber, the cover fabric of the woven fabric Each value of the furnace, melting point and carbon content (% by weight) is a value obtained by measuring by the following method.
[0061] (1)織物生地のカバーファクター：  [0061] (1) Cover factor of woven fabric:
織物生地のカバーファクタ一は、次の式で表されるものである。  The cover factor of the woven fabric is expressed by the following formula.
C= (Nw^Dw) + (Nf^Df)  C = (Nw ^ Dw) + (Nf ^ Df)
C :カバーファクター  C: Cover factor
Nw：タテ糸本数 (本 Zインチ）  Nw: Number of warp yarns (Z inches)
Dw：タテ糸の太さ（デシテックス）  Dw: Thickness of warp yarn (decitex)
Nf :ョコ糸本数 (本 Zインチ）  Nf: Number of horizontal threads (Z inches)
Df :ョコ糸の太さ（デシテックス）  Df: Thickness of the horizontal thread (Decitex)
[0062] 本発明では、上記式を用いて、 n数 3回で算出してその平均値を求め、その際、小 数点以下第 1位を切り上げる。また、 Nw (タテ糸本数）と Nf (ョコ糸本数）については 、 1インチ当たりの本数を小数点以下第 1位を切り上げて求めたものであり、その際、 1インチは 25. 4mmとした。また、 Dw (タテ糸の太さ）と Df (ョコ糸の太さ）については 、糸重量を測定してデシテックス繊度を求める。さらに中空繊維の場合には中空率（ %)を掛けて求めたものであり、小数点以下第 2位を四捨五入して算出した。 [0062] In the present invention, the above formula is used to calculate the average value by calculating n times 3 times, and at that time, round the first decimal place. In addition, Nw (number of warp yarns) and Nf (number of horizontal yarns) were obtained by rounding up the number per inch to the first decimal place, where 1 inch was 25.4 mm. . For Dw (warp yarn thickness) and Df (horizontal yarn thickness), the decitex fineness is obtained by measuring the yarn weight. Further, in the case of hollow fibers, it was obtained by multiplying by the hollow ratio (%), and was calculated by rounding off the second decimal place.
[0063] (2)中空合成繊維の中空率 (％) : [0063] (2) Hollow ratio of hollow synthetic fiber (%):
中空合成繊維の中空率 H (%)は、合成繊維 1本の全体の断面積（中空部分の断 面積も含む) Wの中において、中空部分の断面積 Mのしめる比率で表す。すなわち 、次の式で表されるものである。  The hollow ratio H (%) of the hollow synthetic fiber is represented by the ratio of the cross-sectional area M of the hollow portion in the entire cross-sectional area (including the sectional area of the hollow portion) W of one synthetic fiber. That is, it is represented by the following formula.
中空合成繊維の中空率 H (%) = (M/W) X 100  Hollow ratio of hollow synthetic fiber H (%) = (M / W) X 100
[0064] 本発明では、断面積は単位を mm2として小数点以下第 1位まで求め、算出するも のである。 n数は 4としてその平均値を中空率 H (%)とした。 [0064] In the present invention, the cross-sectional area determined unit to the first decimal place as mm 2, is the also calculated. The number of n was 4, and the average value was the hollowness H (%).
[0065] (3)榭脂フィルムの融点： [0065] (3) Melting point of resin film:
榭脂フィルムの融点の測定方法は、試料 (約 5g)を試験管に入れ、加熱装置中で 融点から約 10°C以上低い温度から 1°CZ分の加熱速度で昇温し、該試料が「融解 するとき」の温度を読み取った。 n数は 3回としてその平均をとつたものである。「融解 するとき」は、肉眼で見て溶融が始まったと判断できるときを該「融解するとき」とした。 [0066] (4)カーボンの含有量（重量0 /0)： The method for measuring the melting point of the resin film is to place a sample (about 5 g) in a test tube and raise the temperature at a heating rate of about 1 ° CZ from a temperature lower than the melting point by about 10 ° C or more in the heating device. The temperature when “melting” was read. The number of n is the average of three times. “When melting” was defined as the time when melting can be judged by the naked eye. [0066] (4) the content of carbon (wt 0/0):
カーボンは、試料約 5gの絶乾質量を求め、電気炉内で強熱を避けて灰化し、これ を少量の水で 200mlのヒーターに移す。ヒーターを加熱して水分を除いた後、濃硫 酸 (比重 1. 84) 15mlと硫酸アンモ-ゥム約 10gをカ卩えて時計皿で覆い、砂浴上で初 めは徐々に、終わりは強ぐ液が透明になるまで加熱する。放冷後、液温が 50°C以 上にならないように注意しながら水をカ卩えて全量を約 100mlとし、これを 1リットルの 全量フラスコに移し、水で標線まで希釈する。この中力 Amiをピペットで 50mlの全 量フラスコに移し、過酸化水素水（3%) 5ml、および ImolZリットル硫酸 10mlをカロえ て発色させた後、水で標線まで希釈する。この液をセルに移し、光電比色計で波長 4 20nmにおける吸光度を測定し、これ力もあら力じめ作成した検量線によって、カー ボン濃度 (gZ50ml)を求め、次式に従ってカーボン重量％を算出し、 2回の平均値 を小数点以下第 2位に丸めて求めるものである。  For carbon, obtain an absolute dry mass of about 5 g of the sample, and ash it in an electric furnace while avoiding high heat, and transfer it to a 200 ml heater with a small amount of water. After removing water by heating the heater, cover 15 ml of concentrated sulfuric acid (specific gravity 1.84) and about 10 g of ammonium sulfate with a watch glass. Heat until strong liquid is clear. After standing to cool, add water to make the total volume about 100 ml with care so that the liquid temperature does not exceed 50 ° C, transfer to a 1 liter volumetric flask and dilute to the mark with water. Transfer this medium Ami with a pipette to a 50-ml volumetric flask, develop 5 ml of hydrogen peroxide (3%) and 10 ml of ImolZ liter sulfuric acid, and dilute to the mark with water. Transfer this solution to a cell, measure the absorbance at a wavelength of 420 nm with a photoelectric colorimeter, calculate the carbon concentration (gZ50 ml) using a calibration curve prepared with this force, and calculate the carbon weight% according to the following formula. The average of the two times is calculated by rounding to the second decimal place.
T= { (B X 1000) Z (C X A) } X 100  T = {(B X 1000) Z (C X A)} X 100
T:カーボン重量％  T: Carbon weight%
Α:採取した希釈液 (ml)  Α: Collected diluent (ml)
B：カーボン重量（gZ50ml)  B: Carbon weight (gZ50ml)
C:試料の絶乾質量 (g)  C: Absolute dry mass of the sample (g)
産業上の利用可能性  Industrial applicability
[0067] 近年の最先端技術の発達により、製品の品質も日進月歩で向上するにつれて、半 導体の製造工場等のクリーンルーム内などでは、ますます高!、レベルでの防塵性お よび制電性が要求されてきて 、る。 [0067] With the development of cutting-edge technology in recent years, the quality of products has been steadily improving, and in a clean room such as a semiconductor manufacturing plant, the level of dust-proofing and anti-static properties are increasing. It has been requested.
[0068] 本願発明にあっては、かかるクリーンルーム内などで作業者が着用し作業をするの に最適な防塵衣服であり、良好なフィルター性と制電性を有することから、いかなる施 設内においても、その優れた発塵の防止効果と防塵性の向上効果を発揮することが でき、産業上の利用価値は頗る高いものがあると云える。 [0068] In the present invention, it is dust-proof clothing that is most suitable for an operator to wear and work in such a clean room and has good filter properties and anti-static properties. However, it can demonstrate its excellent dusting prevention effect and dustproofing improvement effect, and it can be said that there are much higher industrial utility values.
図面の簡単な説明  Brief Description of Drawings
[0069] [図 1]図 1は、本発明の防塵衣服の一例を示した概略正面図である。 [0069] FIG. 1 is a schematic front view showing an example of a dust-proof garment of the present invention.
[図 2]図 2は、ミシン縫合部の、ステッチラインの延びる方向と直交する方向の断面を とった概略断面モデル図である。 符号の説明 [FIG. 2] FIG. 2 is a cross-sectional view of the sewing portion of the sewing machine in a direction perpendicular to the direction in which the stitch line extends. FIG. Explanation of symbols
1:防塵衣服 1: Dust-proof clothing
2:縫い目線 2: seam line
3:高密度織物生地パーツ 4:高密度織物生地パーツ 5:テープ状榭脂フィルム 6:ステッチライン  3: High-density woven fabric part 4: High-density woven fabric part 5: Tape-like grease film 6: Stitch line

Claims

請求の範囲 The scope of the claims
[1] 中空合成繊維マルチフィラメント糸と導電性マルチフィラメント糸とを少なくとも交織 した高密度織物生地をミシン縫製してなる防塵作業衣であり、該高密度織物生地か らなるパーツ同士が縫合されている箇所は、少なくとも該高密度織物生地と該高密度 織物生地とがそれらの間に低融点のテープ状の榭脂フィルムを介在して、少なくとも それら 3層が該テープ状榭脂フィルムの長手方向に延びる少なくとも 2列のステッチラ インによってミシン縫合されていて、さらに、該ミシン縫合後、該ステッチライン部にお [1] A dust-proof work garment formed by sewing a high-density woven fabric having at least a hollow synthetic fiber multifilament yarn and a conductive multifilament yarn woven together, and parts made of the high-density woven fabric are sewn together. The portion where at least the high-density woven fabric and the high-density woven fabric have a low-melting-point tape-shaped resin film interposed therebetween, and at least these three layers are in the longitudinal direction of the tape-shaped resin film. The sewing machine is stitched by at least two rows of stitch lines extending to the stitch line.
V、て前記テープ状榭脂フィルムの熱溶融に基づくシール構造が形成されて 、ること を特徴とする防塵衣服。 V. A dust-proof garment, wherein a seal structure based on heat melting of the tape-like resin film is formed.
[2] 高密度織物生地が、そのカバーファクターが 2600〜3200の範囲内のものである ことを特徴とする請求項 1記載の防塵衣服。 [2] The dust-proof garment according to claim 1, wherein the high-density woven fabric has a cover factor in the range of 2600 to 3200.
[3] 導電性マルチフィラメント糸力 該導電性マルチフィラメント糸中 8〜25重量％の力 一ボンブラックを添加されてなるものであることを特徴とする請求項 1または 2記載の 防塵衣服。 [3] Conductive multifilament yarn force The dust-proof garment according to claim 1 or 2, wherein a force of 8 to 25% by weight of the conductive multifilament yarn is added with one bon black.
[4] 導電性マルチフィラメント糸が、高密度織物中において、該高密度織物の経糸およ び緯糸のそれぞれにおいて少なくともその一部として用いられて格子状に呈して存 在してなることを特徴とする請求項 1、 2または 3記載の防塵衣服。  [4] The conductive multifilament yarn is used in at least a part of each of the warp and weft of the high-density fabric and presents in a lattice form in the high-density fabric. The dust-proof clothing according to claim 1, 2 or 3.
[5] 高密度織物生地の少なくとも緯糸の一部に、非中空の合成繊維マルチフィラメント 糸が使用されてなることを特徴とする請求項 1、 2、 3または 4記載の防塵衣服。  [5] The dust-proof garment according to claim 1, 2, 3 or 4, wherein a non-hollow synthetic fiber multifilament yarn is used for at least a part of the weft of the high-density fabric.
[6] 中空合成繊維の中空率が 20%〜65%であることを特徴とする請求項 1、 2、 3、 4ま たは 5記載の防塵衣服。  6. The dust-proof garment according to claim 1, 2, 3, 4 or 5, wherein the hollow synthetic fiber has a hollowness of 20% to 65%.
[7] テープ状の榭脂フィルムの融点が 60°C〜140°Cであることを特徴とする請求項 1、 2、 3、 4、 5または 6記載の防塵衣服。  [7] The dust-proof garment according to claim 1, 2, 3, 4, 5 or 6, wherein the melting point of the tape-like resin film is 60 ° C to 140 ° C.
[8] 合成繊維マルチフィラメント糸と導電性マルチフィラメント糸とを少なくとも用いて交 織した高密度織物生地をミシン縫製して防塵作業衣を製造するに際して、前記合成 繊維マルチフィラメント糸として中空率が 20%〜65%の中空合成繊維を少なくとも用 いて、かつ前記高密度織物生地力もなるパーツ同士を縫合する箇所において、該高 密度織物生地力もなるパーツ同士の間に、融点が 60°C〜140°Cの榭脂からなるテ ープ状のフィルムを介在させ、少なくともそれら 3層を該テープ状榭脂フィルムの長手 方向に延びる少なくとも 2列のステッチラインを形成させたミシン縫合により縫製一体 化を行い、しカゝる後、該ステッチライン部を加熱して前記テープ状榭脂フィルムを熱 溶融させて該ステッチライン部をシールすることを特徴とする防塵衣服の製造方法。 中空合成繊維は、紡糸段階において、芯鞘型口金から融点の異なるポリマーを用 いて同時に紡糸し、鞘部には融点の高いポリマーを用い、芯部には融点の低いポリ マーを用い、この複合糸を染色段階でアルカリ処理し、低融点ポリマーを溶かして除 去することにより中空にすることを特徴とする請求項 8記載の防塵衣服の製造方法。 中空合成繊維は、紡糸段階において、芯部が中空になる円筒型の芯鞘型口金か ら直接に紡糸することにより中空にすることを特徴とする請求項 8記載の防塵衣服の 製造方法。 [8] When manufacturing a dust-proof work garment by sewing a high-density woven fabric woven with at least a synthetic fiber multifilament yarn and a conductive multifilament yarn, the hollow ratio of the synthetic fiber multifilament yarn is 20 The melting point is 60 ° C to 140 ° between the parts having the high density woven fabric force at the portion where the parts having the high density woven fabric strength are stitched together using at least hollow synthetic fibers of% to 65%. Te consisting of C After interposing a loop-shaped film, at least three layers are sewn and integrated by sewing stitches in which at least two rows of stitch lines extending in the longitudinal direction of the tape-shaped resin film are formed. A method for producing a dust-proof garment, comprising heating the stitch line portion to heat-melt the tape-like resin film and sealing the stitch line portion. At the spinning stage, hollow synthetic fibers are spun simultaneously using polymers having different melting points from a core-sheath die, using a polymer having a high melting point for the sheath, and using a polymer having a low melting point for the core. 9. The method for producing a dust-proof garment according to claim 8, wherein the yarn is hollowed by alkali treatment in a dyeing step and dissolving and removing the low melting point polymer. 9. The method for producing a dust-proof garment according to claim 8, wherein the hollow synthetic fiber is made hollow by spinning directly from a cylindrical core-sheath die having a hollow core at the spinning stage.
高密度織物において、裏面にカレンダー加工を施して、通気量を 0. 3〜1. Ocm3 /cm2 /secにすることを特徴とする請求項 8、 9または 10記載の防塵衣服の製造方 法。 The method for producing a dust-proof garment according to claim 8, 9 or 10, characterized in that in the high-density fabric, the back surface is calendered so that the air flow rate is 0.3 to 1. Ocm 3 / cm 2 / sec. Law.
高密度織物の生地全体に難燃加工を施すことを特徴とする請求項 8、  9. The flame retardant treatment is applied to the entire fabric of the high-density fabric,
9、 10または 11記載の防塵衣服の製造方法。 9. A method for producing a dust-proof garment according to 9, 10 or 11.
高密度織物において、緯糸を経糸よりも細い糸繊度にして、緯糸織密度を経糸織 密度よりも大きくして、かつ、  In a high-density fabric, the weft is made finer than the warp, the weft density is greater than the warp density, and
1. 2 X Df≤Dw≤3. O X Df 1. 2 X Df≤Dw≤3. O X Df
Df：緯糸の太さ（デシテックス） Df: Weft thickness (decitex)
Dw:経糸の太さ（デシテックス） Dw: Thickness of warp (decitex)
の条件を満足させることを特徴とする請求項 8、 9、 The following conditions are satisfied:
10、 11または 12記載の防塵衣服 の製造方法。 10. A method for producing a dust-proof garment according to 10, 11 or 12.
高密度織物において、緯糸に非中空の合成繊維マルチフィラメント糸を用いて、か つ、緯糸織密度を経糸織密度よりも大きくすることを特徴とする請求項 8、 9、 10、  The high-density woven fabric uses a non-hollow synthetic multifilament yarn for the weft, and the weft weave density is larger than the warp weave density.
11 、 12または 13記載の防塵衣服の製造方法。 A method for producing a dust-proof garment according to 11, 12 or 13.
PCT/JP2006/319531 2006-01-24 2006-09-29 Dustproof clothes and method of manufacturing the same WO2007086167A1 (en)

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JP2009167560A (en) * 2008-01-16 2009-07-30 Nitto Boseki Co Ltd Adhesive interlining cloth
JP2009228161A (en) * 2008-03-24 2009-10-08 Toray Ind Inc Method for sewing up conductive fabric, and conductive garment using the conductive fabric
JP2011526661A (en) * 2008-07-04 2011-10-13 テクスランド アンド ネクスコ カンパニー リミテッド High density extra fine fabric
KR101377583B1 (en) * 2012-11-29 2014-03-28 주식회사 루키스 Conductive structure for clothes which transmit electric or signal
EP3739093A1 (en) * 2018-08-23 2020-11-18 B-Horizon GmbH Method for producing a textile item

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JP2003193349A (en) * 2001-12-25 2003-07-09 Toyobo Co Ltd Polyester fabric and dust-free clothes comprising the same
JP2003301348A (en) * 2002-04-04 2003-10-24 Toray Ind Inc Woven fabric for martial art wear
JP2004360098A (en) * 2003-06-03 2004-12-24 Toray Ind Inc Fabric for sterilization resistance and medical supply
JP2005133253A (en) * 2003-10-31 2005-05-26 Toyobo Co Ltd Method for producing woven fabric

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JPH06280103A (en) * 1993-03-23 1994-10-04 Asahi Chem Ind Co Ltd Production of dust-free clothing
JP2003193349A (en) * 2001-12-25 2003-07-09 Toyobo Co Ltd Polyester fabric and dust-free clothes comprising the same
JP2003301348A (en) * 2002-04-04 2003-10-24 Toray Ind Inc Woven fabric for martial art wear
JP2004360098A (en) * 2003-06-03 2004-12-24 Toray Ind Inc Fabric for sterilization resistance and medical supply
JP2005133253A (en) * 2003-10-31 2005-05-26 Toyobo Co Ltd Method for producing woven fabric

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167560A (en) * 2008-01-16 2009-07-30 Nitto Boseki Co Ltd Adhesive interlining cloth
JP2009228161A (en) * 2008-03-24 2009-10-08 Toray Ind Inc Method for sewing up conductive fabric, and conductive garment using the conductive fabric
JP2011526661A (en) * 2008-07-04 2011-10-13 テクスランド アンド ネクスコ カンパニー リミテッド High density extra fine fabric
KR101377583B1 (en) * 2012-11-29 2014-03-28 주식회사 루키스 Conductive structure for clothes which transmit electric or signal
EP3739093A1 (en) * 2018-08-23 2020-11-18 B-Horizon GmbH Method for producing a textile item

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