Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
  • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D04B1/20—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads crimped threads
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D31/00—Materials specially adapted for outerwear
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
  • A41B1/00—Shirts
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
  • A41B17/00—Selection of special materials for underwear
• • 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
  • A41D31/14—Air permeable, i.e. capable of being penetrated by gases
• • 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
• • 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
  • D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
• • 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
• • 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
  • D03D15/50—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 properties of the yarns or threads
  • D03D15/567—Shapes or effects upon shrinkage
• • 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
  • D03D15/50—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 properties of the yarns or threads
  • D03D15/573—Tensile strength
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
  • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
  • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
  • A41B2400/00—Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
  • A41B2400/20—Air permeability; Ventilation
• • 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
  • D10B2401/02—Moisture-responsive characteristics
• • 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
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
  • Y10T442/3154—Sheath-core multicomponent strand material

Definitions

• the present invention relates to a crimped composite fiber-containing woven or knitted fabric and garment capable of improving air permeability by reducing moisture such as perspiration and reducing feeling of stuffiness.
• the present invention relates to a woven or knitted fabric comprising a double-a type fiber having a manifested crimp, comprising a polyester component and a polyamide component joined in a side-by-side type or an eccentric core-sheath type. Further, the present invention relates to a woven or knitted fabric and a garment in which the air permeability of the woven or knitted fabric at the time of moisture absorption is reversibly improved with better performance than when dry.
• a breathable self-adjusting woven or knitted fabric has been proposed in which the breathability is improved when wet with water and the breathability is reduced when dried.
• a garment made from such a knitted or knitted fabric when it gets wet by sweating, its breathability is improved and moisture remaining in the garment can be quickly removed by drying. Since the breathability of clothes can be reduced and the warming effect of clothes can be improved, the comfort of clothes can always be maintained well, even when sweating or not sweating. it can.
• Patent Document 1 discloses a composite fiber in which a modified polyethylene terephthalate containing a sulfonate group and nylon are joined in a side-by-side type.
• An air-permeable self-adjusting woven or knitted fabric comprising (A) and fibers (B) whose dimensions do not substantially change with changes in humidity is disclosed.
• the air permeability of this woven or knitted fabric is reversibly improved in moisture absorption than in drying, but the amount of change in the air permeability is insufficient in practice.
• Patent Document 2 Japanese Patent Laid-Open No. 10-77544 is formed from a hygroscopic polymer (for example, a copolymerized polyester polymer and a polyether ester amide polymer in which a hydrophilic compound is copolymerized), and the like.
• a woven or knitted fabric containing synthetic multifilament yarn heated to have a twist coefficient of ⁇ 26000 at a content of 30% by weight or more is disclosed.
• Patent Document 3 describes a cellulose acetate fiber (showing a crimp rate of less than 10% when the humidity is 95% or more, and 15 to 20% when the humidity is 65%. And a crimp number of 25 pieces // 25. 4DIDI or more, and when the humidity is 45% or less, the woven or knitted fabric is disclosed. .
• Patent Documents 2 and 3 are improved in breathability by moisture absorption.
• the amount of change in air permeability is insufficient for practical use, and the amount of change in air permeability is large.
• the advent of breathable self-regulating woven and knitted fabrics was desired.
• Patent Document 1 Japanese Patent Laid-Open No. 2003-4 1462
• Patent Document 2 Japanese Patent Laid-Open No. 10-77544
• Patent Document 3 Japanese Patent Laid-Open No. 2002-1 80323 Disclosure of Invention An object of the present invention is to provide a crimped composite fiber-containing woven or knitted fabric in which the air permeability when wet with water is improved to a practically sufficiently higher level than the air permeability when dry, and the woven or knitted fabric containing the crimped composite fiber and the clothes including the same. It is to provide.
• the crimped composite fiber-containing woven or knitted fabric with improved breathability by water wetting of the present invention is different from each other in heat shrinkability, and has a polyester resin component bonded to a side-by-side structure or an eccentric core-sheath structure and A knitted or knitted fabric comprising a yarn composed of a polyamide resin component and including a conjugate fiber having a crimp manifested by heat treatment, wherein the content of the crimped conjugate fiber contained in the woven or knitted fabric is 10 -100% by mass, a sample of a crimped composite fiber sample to be tested was taken from the woven or knitted fabric, and one part of the composite fiber sample was left to dry in an environment of a temperature of 20 and a humidity of 65% RH for 24 hours.
• the polyester resin component is 2.0 to 4.5 mol% based on the content of the acid component. It is preferably made of a modified polyester resin in which an acid is copolymerized.
• the crimped composite fiber-containing yarn preferably has a twist number of O to 300 TZm or less.
• the woven or knitted fabric may include the crimped composite fiber and another fiber different from the crimped composite fiber.
• the other fiber is a fiber that is not crimped, or the crimp rate difference DC F — HC F of less than 10%.
• the crimped composite fiber-containing woven or knitted fabric that has improved air permeability when wetted with water according to the present invention is preferably selected from the fibers having the crimped composite fiber-containing woven or knitted fabric according to JI S.
• the woven or knitted fabric is a woven fabric when it is subjected to the stretchability measurement of the stretch woven fabric specified in (However, the load value applied to the test woven or knitted fabric test piece is changed to 1.47 N)
• the stretch rate in at least one direction selected from the warp direction and the weft direction is 10% or more
• the woven or knitted fabric is a knitted fabric
• the rate is preferably 10% or more.
• the crimped composite fiber-containing woven or knitted fabric that has improved air permeability when wetted with water according to the present invention, wherein the crimped composite fiber-containing woven or knitted fabric has a multilayer structure, and the weight of the layer is 30% in at least one layer. Up to 100% by mass of the crimped composite fiber may be contained.
• the crimped composite fiber-containing woven or knitted fabric that is improved in air permeability by water wetting of the present invention, wherein the woven or knitted fabric is a knitted fabric having a circular knitted structure, and the loop of the circular knitted structure includes the crimped composite fiber and You may form with the thread containing the said other fiber.
• the crimped composite fiber-containing woven or knitted fabric whose air permeability is improved by water wetting of the present invention, wherein the woven or knitted fabric is a woven fabric, and the composite fiber-containing yarn includes the crimped composite fiber and the other fibers.
• a warp and weft of the woven fabric, or a warp or a weft may be composed of other fiber pull yarns.
• the crimped composite fiber-containing woven or knitted fabric with improved air permeability due to water wetting of the present invention wherein the woven or knitted fabric includes a yarn comprising the crimped composite fiber and
• Threads made of other fibers are selected from the warp and weft directions.
• ⁇ To one direction or at least one direction selected from the one direction and the well direction may be arranged alternately to at least one.
• the crimped composite fibers and the other fibers form a core-sheath type composite yarn, and the core of the composite yarn is formed by the crimped composite fiber. It is preferable that the sheath is made of the other fiber.
• the other fibers are preferably selected from polyester fibers.
• the crimped composite fiber-containing woven or knitted fabric whose air permeability is improved by water wetting of the present invention may be processed with a water absorbing agent.
• the crimped composite fiber-containing woven or knitted fabric whose air permeability is improved by water wetting of the present invention may be subjected to a water repellent treatment.
• the crimped composite fiber-containing woven or knitted fabric whose air permeability is improved by water wetting of the present invention may be dyed.
• the test sample of the woven or knitted fabric is left to dry in an environment of a temperature of 20 ° C and a humidity of 65% RH for 24 hours.
• a dry sample was prepared, and separately, the test sample of the woven or knitted fabric was soaked in water at a temperature of 30 ° C for 2 hours, then pulled out of the water, and the sample was heated to a temperature of 30 seconds within 60 seconds after the pulling.
• Clamped between a pair of filter papers in air at ° C and humidity 90% RH, which was 490 NZ m 2 ( Prepare a water-wet sample by lightly removing water in the sample for 1 minute under a pressure of 50 kgf m 2 ).
• the change rate of air permeability calculated by the above is 30% or more
• the clothes whose dimensions are reversibly expanded by water wetting of the present invention and air permeability is improved include the crimped conjugate fiber-containing woven or knitted fabric of the present invention.
• the crimped composite fiber-containing woven or knitted fabric preferably forms at least one of a side part, a side body part, a chest part, a back part, and a shoulder part of the garment.
• each of the portions formed of the crimped composite fiber-containing woven or knitted fabric has an area of 1 cm 2 or more in force.
• the crimped composite fiber-containing woven or knitted fabric is preferably selected from a circular knitted fabric and a mesh-like coarse woven or knitted fabric.
• the clothes of the present invention include outer clothes, sports clothes, and inner clothes.
• the crimped conjugate fiber contained in the crimped conjugate fiber-containing woven or knitted fabric of the present invention has a characteristic that its crimp rate decreases by 10% or more when wet as compared to when dried.
• the knitted or knitted fabric containing the crimped composite fiber is remarkably improved in air permeability when wet as well as when dried. Therefore, the crimped composite fiber-containing woven or knitted fabric of the present invention is used as a material constituting the whole or a part of outer, sports and inner garments. Then, when the clothes are wet with sweat, etc. while the clothes are being worn, the breathability of the clothes is increased, and the moisture remaining in the clothes is dried and released, and when the clothes are sufficiently dried, the breathability is decreased. And heat retention is improved. For this reason, the wearer's feeling of wear is always well maintained and can contribute to maintaining good health.
• FIG. 1 is a cross-sectional explanatory view showing an example of a cross-sectional shape of a side-by-side-type crimped composite fiber included in the woven or knitted fabric of the present invention.
• FIG. 2 is a cross-sectional explanatory view showing another example of the cross-sectional shape of the side-by-one-side crimped composite fiber included in the woven or knitted fabric of the present invention
• FIG. 3 is a cross-sectional explanatory view showing still another example of the cross-sectional shape of the side-by-one-side crimped composite fiber included in the woven or knitted fabric of the present invention.
• FIG. 4 is a cross-sectional explanatory view showing an example of a cross-sectional shape of an eccentric core-sheath-type crimped conjugate fiber included in the woven or knitted fabric of the present invention
• FIG. 5 shows a knitted fabric formed by the woven or knitted fabric of the present invention and aerated by water wetting.
• FIG. 6 shows a garment (shirt) in which a single portion formed by the woven or knitted fabric of the present invention and having improved air permeability by water wetting is arranged on the front chest.
• FIG. 7 is a front explanatory view of a garment (shirt) that is formed by a woven or knitted fabric of the present invention and has an undersleeve portion and a side body portion that improve air permeability when wet with water.
• Figure 8 shows that the garment (shirt) of the present invention (Example 1) and the garment (shirt) of the present invention (Comparative Example 1) are worn on the human body and are resting (wind 1.5 m Z s) — Running ⁇ Rest (no wind) ⁇ Rest (wind 1.5 m Z s) 1 is a graph showing the relative humidity variation in the gap between the human skin and the shaki when the test is performed.
• the crimped composite fiber contained in the crimped composite fiber-containing woven or knitted fabric whose air permeability is improved by water wetting of the present invention is composed of a polyester resin component and a polyamide component, and is side-by-one-type or eccentric. It has a core-sheath type composite fiber structure.
• a side-by-side composite fiber for example, it has a substantially circular cross-sectional shape shown in FIG.
• Section 1 and Section 2 consisting of polyamide resin components
• the side-by-side single-sided bi- ⁇ fiber shown in Fig. 2 has an elliptical cross section.
• section 3 and section 2 are along the major axis of the section ellipse. It is preferable that they are joined.
• section 1 consisting of polyester resin component
• section 2 consisting of polyamide resin component 2 are the peripheral surface of section 2 Part 2a is exposed to the outside and joined to section 1 at the remaining peripheral surface.
• section 1 showing a crescent-shaped cross-section is made of a polyester resin component
• section 2 showing an almost circular cross-sectional shape is made of a polyamide resin component. It may be composed of a mid resin component and a section 2 polyester resin component.
• core-sheath type composite fiber having the cross-sectional shape shown in FIG. 4 it is included in the section 1 composed of the polyamide resin component 1 and the section 1 composed of the polyester resin component 1.
• peripheral surface of 2 is not exposed to the outside, but in section 1
• the cross-sectional contour shape of the composite fiber contained in the woven or knitted fabric of the present invention is not limited to that shown in FIG. 1 to ⁇ , a triangle, a quadrangle, other polygons, etc., or May have a hollow part inside
• the mass ratio of sections 1 and 2 joined to each other is preferably 30:70 to 70:30 ⁇ , 40:
• the polyester resin component contains a polycondensation product of an acid component composed of one or more aromatic dicarboxylic acids and a diol component composed of one or more alkylene glycols.
• the acid component preferably contains terephthalic acid as a main component
• the diol component preferably contains ethylene glycol, propylene glycol, butylene glycol or the like as a main component
• the copolymer component may include a compound having at least one functional group selected from the group consisting of an alkali gold silicate salt dulpe of sulfonic acid, an alkaline earth metal salt group and a phosphonium salt group. preferable.
• the polyester resin component includes: a polyethylene terephthalate monocopolymer containing, as a copolymerization component, an aromatic dicarboxylic acid having the above sulfonate drip group as a functional group, and a polypropylene terephthalate copolymer. And a modified polyester such as polybutylene terephthalate copolymer.
• Copolymers having HiJ 3 ⁇ 41 sulphonate group are effective to improve the adhesion of Limamori et al. ⁇ 1 ⁇ “3'J ester resin component to polyamide resin component
• polyester resin component of the crimped fiber for woven or knitted fabric of the present invention As a polyester resin component of the crimped fiber for woven or knitted fabric of the present invention,
• Polyethylene terephthalate polymer modified with a copolymer component containing sulfite salt of HIJ is particularly preferred because it is highly versatile and has a low price.
• 5-sodium sulfoisulfuric acid, its ester, and o “phosphorus muisophthalic acid and its ester B3 ⁇ 4 derivative are used, and a sulfonic acid group-containing hydroxyl compound and For example, P-hydr ⁇ xybenzene sulfonic acid sodium salt, etc.
• 5-sodium sulfoisophthalic acid is preferably used. Is preferably from 2.0 to 4.5 mol% based on the molar amount of the acid component of the polyester polymer in which the content of the copolymer component is more than 2.0 mol%.
• the crimp performance of the resulting composite fiber is sufficient, but within the resulting composite fiber, the section composed of the polyester resin component and the polyamide resin component
• the resulting undrawn composite fiber is subjected to a drawing heat treatment.
• the polyamide resin used as the polyamide resin component has an amide bond in its main chain and has fiber-forming properties.
• Nylon-4 Nylon-6
• Nylon 66 Nylon-46
• Nylon 1-12 Nylon-6 and Nylon-6 6 are preferably used in the present invention in that they are excellent in versatility, have a relatively low polymer price and high stability in the production process.
• polyester resin component and the polyamide resin component is independently of each other, as necessary, additives such as pigments, anti-detergents, antifouling agents, fluorescent whitening agents, flame retardants, stabilizers, One or more of an antistatic agent, a light-resistant agent, and an ultraviolet absorber may be included.
• the single fiber fineness of the composite fiber and the number of single fibers (single filaments) contained in one yarn is in the range of 1 to l O dtex. It is preferably within the range, more preferably 2 to 5 dtex, and the number of the composite fibers contained in one thread is preferably 10 to 200, more preferably 20 to 100 .
• the polyamide resin section made of the polyamide resin component has a higher heat shrinkage than the polyester resin section constituted by the polyester resin component. And higher hygroscopic self-extension.
• the polyamide resin section in the crimped composite fiber absorbs more water and exhibits higher self-elongation than the polyester resin section. .
• the self-elongation ratio of the polyester resin section due to water wetting is close to zero.
• the crimp ratio of the crimped composite fiber wetted with water is lower than that of the dry crimped composite fiber.
• the apparent length of the water-wet crimped composite fiber is longer than the apparent length of the dried crimped composite fiber.
• the polyamide resin section dehydrates and shrinks, but the polyester resin section has almost no dimensional change. The crimp rate is restored to the old, and the apparent length is restored to the original apparent length.
• the crimped composite fiber contained in the woven or knitted fabric of the present invention has a crimp rate reduced by water and moisture, an apparent length of the fiber is increased, and a crimp rate and an apparent length are increased by drying. Both will return to the old. Therefore, the woven or knitted fabric composed of the yarn containing the crimped composite fiber having the above-mentioned characteristics is reduced in the crimp rate of the crimped composite fiber due to water wetting. This increases the gap between the yarns in the woven or knitted fabric, enlarges the area, and improves the air permeability.
• the air permeability of the woven or knitted fabric can be measured by JIS L 1096-1 998, 6. 27. 1. Method A (Fragile type air permeability tester method).
• the air permeability when wet with water is higher than the air permeability when dry. 30% more on the basis of breathability It is preferably higher, more preferably 80 to 500% higher.
• the rate of change in air permeability is calculated using the following formula.
• the dry sample was prepared by leaving it for 24 hours in an environment of temperature 20 ° C and humidity 65% RH, and the water-wet sample was immersed in water at 30 ° C for 2 hours. Pull up from the water, and within 60 seconds of this pulling, in air at a temperature of 30 ° C and a humidity of 90% RH, sandwich between a pair of filter papers, 490 NZ m 2 (50 kgf / m 2 ) This is a sample in which the moisture in the sample is lightly removed by pressing for 1 minute.
• the woven or knitted fabric of the present invention contains the crimped conjugate fiber in a content of 10 to 100% by mass, and the content is preferably 40 to 100% by mass. If the content is less than 10% by mass, the effect of the crimped composite fiber, that is, the resulting woven or knitted fabric is not sufficiently reversible in water wetting--increasing air permeability by drying--decreasing. become.
• the crimped conjugate fiber is contained in the yarn constituting the woven or knitted fabric, and the crimp rate of the crimped conjugate fiber is reduced by water wetting, whereby the yarn containing the same As a result, the area of the knitted fabric is increased and the yarn gap is increased. As a result, the air gap area and the air permeability are increased.
• the crimped composite fiber-containing yarn efficiently increases or decreases its apparent length. Accordingly, in order to efficiently increase or decrease the air permeability of the woven or knitted fabric, it is preferable that the yarn is a non-burning yarn or a sweet-burning yarn having a twist number of 0 to 300 TZ m. In particular, a non-burning yarn is more preferable. If the number of burns is higher than 300 T / m, the crimped composite fiber in the yarn constrains the deformation of each other, and therefore the change in the crimp rate of the composite fiber during water wetting or drying This creates a constraint, which also restricts the change in the apparent length of the yarn. Therefore, changes in the air permeability of the woven or knitted fabric may be restricted.
• the crimped composite fiber-containing yarn may be subjected to interlaced air processing and false or false twist crimp processing.
• the number of interlaced fibers in the yarn is 20 to 20 It is preferably about 60 / m.
• the crimped composite fiber-containing yarn may include other fibers different from the crimped composite fiber, and the other fibers include uncrimped fibers and the crimp rate difference.
• the value of the DC F -HC F can be selected from less than 10% fibers.
• polyesters such as polyethylene terephthalate, poly (ethylene methylene terephthalate), and polybutylene terephthalate (polyester), nylon 1 and nylon —
• Polyamides such as 66, polyolefins such as polyethylene and polypropylene, acrylics, norra-type or meta-type amides, and modified polymers thereof can be used.
• the other fibers may be selected from fibers suitable for clothing such as natural fibers, regenerated fibers, and semi-synthetic fibers.
• fibers suitable for clothing such as natural fibers, regenerated fibers, and semi-synthetic fibers.
• fibers suitable for clothing such as natural fibers, regenerated fibers, and semi-synthetic fibers.
• fibers suitable for clothing such as natural fibers, regenerated fibers, and semi-synthetic fibers.
• fibers suitable for clothing such as natural fibers, regenerated fibers, and semi-synthetic fibers.
• the single fiber fineness of the other fibers is 0.1 to 5 dt ex (more preferably 0). 5 to 2 dt ex), and the number of single fibers contained in one yarn is preferably 20 to 200 (more preferably 30 to 100). It should be noted that interlaced air processing and Z or normal false twist crimping may be applied to other fibers so that the number of entanglements is about 20 to 60 Zm.
• the crimped composite fiber and other fibers may constitute one or more different types of yarns, and these yarns may be knitted in a mixed woven manner.
• the crimped conjugate fiber and the other yarn may constitute a mixed yarn, and an air mixing method may be used for this purpose.
• the crimped composite fiber yarn and the other fiber yarn may form a twisted yarn or an aligned yarn, or form a composite false twist crimped yarn. May be.
• the woven or knitted fabric includes a single-layer structure and two or more multilayer structures.
• the knitted or knitted fabric of the present invention in order to ensure the mobility and deformation possibility (crimp change possibility) of the crimped conjugate fiber in the woven or knitted fabric, the knitted or knitted fabric should be stretchable in the warp direction and the Z or weft direction.
• the expansion / contraction ratio is preferably 10% or more, more preferably 20% or more, and further preferably 25 to 150%.
• the composite fiber included in the woven or knitted fabric has a crimped structure in which latent crimping performance is expressed, and the composite fiber is crimped when dried.
• the rate is DC F (%)
• the crimp rate when absorbing moisture is HCf (%).
• DC F — HC F ⁇ 10 (%) (preferably 50 (%) ⁇ DC F -HC K ⁇ 10 (%)). If DC F — HC F is less than 10%, the air permeability may not be improved at the time of moisture absorption compared to the case of drying, which is not preferable.
• this composite fiber sample was immersed in water at a temperature of 30 ° C for 2 hours, pulled out of the water, and within 60 seconds after being pulled up, a pair of filter papers in air at a temperature of 30 and a humidity of 90% RH Between them, apply 0.69 mN / cm 2 of pressure for 5 seconds to lightly wipe the water from the sample, and apply a load of 1.76 mNZdtex (200 mg / d) to the fiber length LOf ′. Measure, and after 1 minute of dewetting, apply a load of 0.01 76mN / dtex (2mg / d) and measure the fiber length Llf '. From the above measurement results, the following equation to calculate the dry percentage of crimp DC F (%) ⁇ beauty water wet percentage of crimp HC F (%).
• the woven or knitted fabric of the present invention may be subjected to water-absorbing agent processing.
• water-absorbing treatment By applying water-absorbing treatment to the woven or knitted fabric, air permeability is easily improved even with a small amount of sweat.
• Such water absorption processing may be ordinary water absorption processing, for example, polyethylene glycol diglycerin ⁇ and its derivatives, or poly
• a water absorbing agent such as ethylene terephthalate-polyethylene glycol copolymer is attached to the woven or knitted fabric in an amount of 0.25 to 0.50% by weight based on the weight of the woven or knitted fabric.
• Examples of the water absorption processing method include a bath processing method in which a water absorption processing agent is mixed with the dyeing solution during dyeing processing, and a knitted fabric is dipped into the water absorption processing solution before the dry heat final set, and then in a mandal.
• Examples of the processing method include a drawing method, a gravure coating method, and a screen printing method.
• the water-repellent woven or knitted fabric of the present invention may be subjected to water-repellent finishing.
• Such water repellent treatment may be a normal one.
• the method described in Japanese Patent No. 3133227 and Japanese Patent Publication No. 4-5786 is suitable.
• a commercially available fluorine-based water repellent for example, Asahi Guard L S- 3 17 manufactured by Asahi Glass Co., Ltd. is used as the water repellent, and melamine resin, catalyst as required.
• a processing agent having a water repellent concentration of about 3 to 15% by weight and a pick-up rate of about 50 to 90% and the surface of the woven or knitted fabric is processed using the processing agent.
• the method for treating the surface of the woven or knitted fabric with the processing agent include a pad method and a spray method. Among these, the pad method is the most preferable for allowing the processing agent to penetrate into the woven or knitted fabric.
• the pickup rate is a weight ratio (%) with respect to the weight of the processing agent woven or knitted fabric (before applying the processing agent).
• the water repellency of the woven or knitted fabric after the water repellent processing is preferably 4 or more, more preferably 5 (maximum) when measured according to JIS L 10926.2 (spray test).
• the crimp rate of the composite fiber contained in the woven or knitted fabric decreases with good performance during moisture absorption, resulting in an increase in the yarn length of the composite fiber, resulting in voids in the woven or knitted fabric. Increases air permeability.
• the crimp rate of the composite fiber increases during drying, the yarn length of the composite fiber is shortened, and as a result, the voids in the knitted and knitted fabric become smaller. Temper falls.
• the woven or knitted fabric of the present invention may be subjected to a dyeing process.
• the conditions for the dyeing process will be described in detail later.
• the mode of the woven or knitted fabric is as follows.
• the woven or knitted fabric is a multilayered woven or knitted fabric having two or more layers, and the weight of the total fibers constituting the layer is at least one layer of the woven or knitted fabric.
• Each of the composite fiber and the other fiber is a constituent yarn of the woven or knitted fabric.
• the composite fiber and other fibers are arranged such that the composite fiber is located in the core portion and the other fibers are in the sheath portion.
• Examples of the core-sheath type composite yarn positioned include a woven or knitted fabric included in a woven or knitted fabric.
• the fiber length of the composite fiber is (A) and the fiber length of the other fiber is (B).
• B it is preferable because air permeability is improved when wet.
• the composite fiber yarn taken out from the small piece and the other fiber yarn need to be in the same direction in the woven or knitted fabric.
• the composite fiber yarn is taken out from the warp (weft) of the woven fabric, the other fiber yarn needs to be taken out from the warp (weft).
• the composite fiber yarn and other fiber yarns constitute a woven or knitted fabric as a composite yarn
• take out the composite yarn from the cut pieces (30cm x 30cm) (n number 5)
• a composite fiber yarn and other fiber yarns are taken out from the composite yarn and measured in the same manner as described above.
• examples of the method for making a difference in the fiber length AB between the composite fiber yarn and the other fiber yarn include the following methods. For example, when weaving the woven or knitted fabric using a composite fiber yarn and another fiber yarn, the boiling water shrinkage of the other fiber yarn is 15% or less (more preferably 10% or less). And a method of overfeeding other fiber yarns when a composite fiber yarn and other fiber yarns are compounded.
• the basis weight is 300 g Z m 2 or less (more preferably 100 to 250 8 1! 1 2 ). Preferably there is.
• the woven or knitted fabric of the present invention can be easily obtained, for example, by the following production method.
• the intrinsic viscosity of the polyester resin component When the intrinsic viscosity of the polyester resin component is larger than 0.43, the viscosity of the polyester component increases, so that the physical properties of the composite fiber are close to those of a single polyester yarn, and the woven or knitted fabric intended by the present invention cannot be obtained. . On the other hand, if the intrinsic viscosity of the polyester resin component is less than 0.30, the melt viscosity becomes too small, the yarn-making property is lowered, and the generation of fluff is increased, which may reduce the quality and productivity.
• a spinneret used for melt spinning for example, as shown in FIG. 1 of JP-A-2000-144518, high-viscosity side and low-viscosity side discharge holes are separated, and high-viscosity side discharge linear velocity is used.
• a spinneret with a smaller (i.e., larger discharge cross-sectional area) is suitable.
• the molten polyester is passed through the high-viscosity side discharge holes, and the molten polyamide is passed through the low-viscosity side discharge holes to be cooled and solidified.
• the weight ratio of the polyester component to the polyamide component is preferably in the range of 30:70 to 70:30 (more preferably 40:60 to 60:40) as described above.
• the spinning and drawing conditions may be normal conditions.
• the straight-rolling method after spinning at about lOOO SSOOmZ, it is continuously drawn and wound at a temperature of 100 to 150 ° C.
• the draw ratio may be appropriately selected so that the cut elongation of the composite fiber obtained at the end is 10 to 60% (preferably 20 to 45%) and the cut strength is about 3.0 to 4. icNZdtex.
• the composite fiber satisfies the following requirements (1) and (2) at the same time.
• the crimp ratio DC of the composite fiber during drying is within the range of 1.5 to 13% (preferably 2 to 6%).
• the difference (DC-HC) between the crimp rate DC and the crimp rate HC of the composite fiber when wet with water is 0.5% or more (preferably 1 to 5%).
• the crimping rate DC during drying and the crimping rate HC during wetness are the values measured by the following method.
• the initial load and 98 m 50 mN X 20 X 9 X total tex (0.2 gfx20x total denier) Measure the length: L 0, immediately remove only the heavy load, and measure the total length after 1 minute of the weight: L 1. Furthermore, after immersing this recognition in water at a temperature of 20 ° C for 2 hours with the initial load applied, it was taken out and then wiped lightly with a filter paper at a pressure of 0.69 mN / cm 2 (70 mgf / cm 2 ). , Apply the initial load and heavy load, measure the total length: L 0 ', immediately remove only the heavy load, and measure the total length: L 1' after 1 minute of dewetting. Calculate the crimp rate during drying (DC), crimp rate during wetness (HC), and difference in crimp rate between dry and wet (DC-HC) from the above measured values using the following formula. .
• Crimp rate when wet HC (%) ((LO '-LI') / L0 ') X 100
• the crimp ratio HC of the double ⁇ fibers when wet is 0.5 to 10.0.
• the crimp ratio DC of the composite fiber at the time of drying is less than 1.5%, the amount of change in crimp when wet is reduced, so that the amount of change in air permeability of the woven or knitted fabric may also be reduced.
• the crimp ratio DC of the composite fiber during drying is greater than 13%, the crimp is too strong to change easily when wet, and the change in air permeability of the woven or knitted fabric is also small. There is a risk of becoming.
• the difference between the crimp ratio HC of the composite fiber during drying (DC-HC) is less than 0.5%, the change in air permeability of the woven or knitted fabric may be small.
• the composite fiber is used alone, or other fibers are used at the same time, and the knitted fabric is knitted. Then, the composite fiber is crimped by heat treatment such as dyeing.
• the amount is 10% by weight or more (preferably 40% by weight or more) with respect to the total weight of the woven or knitted fabric based on the weight.
• the woven or knitted structure is not particularly limited, and the above-mentioned ones can be appropriately selected.
• the dyeing temperature is 100 to 140 ° C (more preferably 110 to 1).
• the keeping time of the kneading temperature is within a range of 5 to 40 minutes.
• a crimp structure is obtained in which the amide component is located inside the crimp.
• a woven or knitted fabric that has been dyed is usually subjected to a dry heat final set.
• the temperature of the dry heat final set is 120 to 200 ° C (more preferably 140 to 180 ° C), and the time is within 1 to 3 minutes. It is preferable that When the temperature of the dry heat final set is lower than 120 ° C., the stain generated during the dyeing process tends to remain, and the dimensional stability of the finished product may be deteriorated. On the contrary, if the temperature of the dry heat final set is higher than 200 ° C, the crimp of the composite fiber generated during the dyeing process may decrease, or the fiber may harden and the texture of the fabric may become hard. is there.
• the woven or knitted fabric of the present invention includes conventional brushed processing, ultraviolet shielding or antibacterial agent, deodorant, insect repellent, phosphorescent agent, retroreflective agent, negative ion generator, water absorbing agent, etc.
• Various types of processing that provides this function may be applied.
• the woven or knitted fabric of the present invention is obtained by water-wetting the crimped ⁇ fiber contained therein.
• the garment of the present invention includes a crimped composite fiber-containing woven or knitted fabric that is improved in water-wetting according to the present invention, and its dimensions are reversibly expanded by water-wetting, improving air permeability, It has the characteristic of showing a ventilation effect.
• the clothes of the present invention include outer clothes, sports clothes, inner clothes, and the like.
• the garment has a portion whose size does not change due to water wetting and a portion whose size reversibly increases (area reversibly increases) due to water wetting.
• the area of the garment is partially enlarged due to water wetting, so that the overall size of the garment is not excessively enlarged and the gap between the garment and the wearer's skin is excessively enlarged.
• wear the clothes of the above aspect, and the wearer When sweating, the part that has been wetted by sweat and has increased in size (area) bulges outward, increasing the gap between the wearer's skin and the part and increasing the breathability of the wet part.
• the portion that does not undergo dimensional change due to water wetting means a portion that has an area change rate of less than 5% due to water wetting, and the portion that undergoes dimensional change due to water wetting refers to the area due to water wetting. This means that the rate of change is 5% or more.
• the change in the area ratio of the garment part is measured by the following method.
• the woven or knitted fabric is left for 24 hours in an environment of temperature 20 ° C and humidity 65% RH (hereinafter referred to as dry).
• the square is cut in the same direction as the woven or knitted fabric to make the area (cm 2 ) when dried.
• wet immersing the sample in water at a water temperature of 30 ° C for 5 minutes
• the sample is pulled up, and the sample is sandwiched between two filter papers within 60 seconds after lifting.
• 490NZm 2 50kgf / m 2 ) for 1 minute, and after removing the water existing between the fibers, measure the area (cm 2 ) of wet ⁇ zeta. Even when the area is reduced by water wetting, it shall be included in “No change in dimension due to wetting”.
• Area change rate (%) ((area when wet) 1 (area when dry)) / (area when dry) X 100
• the woven or knitted fabric that forms a portion whose dimensions do not change when wetted with water includes organic natural fibers such as cotton, wool, and hemp, polyester, nylon, and polyolefin fibers. Selected from organic synthetic fibers such as cellulose semi-synthetic fibers such as cellulose acetate fibers, and organic regenerated fibers such as viscose rayon fibers.
• polyester fiber is suitable in terms of fiber strength and handleability. It is.
• Polyester fibers are produced from a dicarboxylic acid component and a diglycol component.
• the dicarboxylic acid component terephthalic acid is preferably mainly used, and as the diglycol component, one or more selected from ethylene glycol, ⁇ -methylene glycol, and ⁇ -ethylene methylene glycol. It is preferable to use
• the polyester may contain a third component in addition to the dicarboxylic acid component and the glycol component.
• the third component is a force thione dye-dyeable anion component, for example, sodium U umsulfoi sophthalic acid; a dicarboxylic acid other than terephthalic acid, for example, isophthalic acid, naphthenic dicarboxylic acid, adipic acid, sebacic acid; It is possible to use one or more of glycol compounds other than alkylene glycol, such as diethylene glycol, polyethylene glycol, bisphenol A, and bisphenol sulfone. Necessary for fibers that do not change in size due to water wetting.
• micropore forming agent organic sulfonic acid metal salt
• anti-coloring agent heat stabilizer
• flame retardant antimony trioxide
• fluorescent whitening agent coloring pigment
• control Electric agent metal salt of sulfonic acid
• Hygroscopic agent polyoxyalkylene glycol
• Antibacterial agent Other One or more types of machine particles may be included.
• the form of the fiber that does not change its dimensions due to water wetting is not particularly limited, and may be either a long fiber (multifilament ⁇ ) or a short fiber, but a long fiber is preferable in order to obtain a soft texture.
• normal false twist crimping, twisting, and in-race air processing may be applied.
• the fineness of the fiber is not particularly limited, but in order to obtain a soft texture, it is preferable that the single fiber fineness is 0.1 to 3 dt ex, the number of filaments is 20 to 150, and the total fineness is 30 to 300 d t ex. .
• There is no restriction on the cross-sectional shape of the single fiber and it is a normal circular section. In addition to the surface, it may have a triangular, flat, cruciform, hexagonal, or hollow cross-sectional shape.
• the structure of the knitted or knitted fabric that does not change in dimensions due to water wetting is not particularly limited, and may be a normal one.
• the woven structure of the woven fabric is a three-layer structure such as plain weave, oblique weave, or satin weave, change structure, change texture such as change oblique weave, vertical double weave, weft double weave, etc. Examples include heavy tissue and vertical load.
• the type of knitted fabric may be a weft knitted fabric or a newly knitted fabric.
• Preferred examples of the weft knitting structure include flat knitting, rubber knitting, double-sided knitting, pearl knitting, tuck knitting, floating knitting, one-sided knitting, lace knitting, splicing knitting, and the like. Examples include single denbi, single atlas, double code, double, one-cotton, back hair, and jaguar.
• the portion where the dimension reversibly expands due to wetting is locally arranged, and the other portion is composed of a woven or knitted fabric that does not change in dimension with respect to the moisture.
• a portion where the dimension is reversibly expanded by wetting a portion with a relatively high perspiration is suitable.
• the knitted and knitted fabric portion 11 disposed at least at one portion of the lower sleeve portion 10 is preferred.
• the area of the woven or knitted fabric part whose dimensions are reversibly expanded by such wetting is that one area of the woven or knitted fabric part is 1 cm 2 or more, and the total area of the part is 500 to 10000 cm 2. It is preferable that the total area ratio of the knitted and knitted fabric portion is within a range of 5 to 70% with respect to the total area of the clothes. When this area ratio is less than 5%, the space volume between the clothes and the skin does not become too large when wet, and a sufficient ventilation effect may not be obtained. Conversely, if the area ratio is greater than 70%, the overall garment dimensions change when wet. There are things to do.
• the woven or knitted fabric of the present invention is used as a fabric constituting a portion whose dimensions are reversibly enlarged by wetting.
• the woven or knitted fabric structure where the dimension is reversibly expanded by wetting
• the woven or knitted structure and the number of layers are not particularly limited.
• weaving organizations such as plain weaving, twill weaving and satin, and weaving organizations such as tengu, smooth, frying, kanoko, warp knitting, denbi, half, etc. are illustrated in good weeks.
• Circular knitted fabric or mesh-shaped woven or knitted fabric is particularly preferable.
• the dimensional change amount of the part is preferably such that the area change rate is 10% or more, more preferably 15 to 30%.
• the area change rate is 10
• the space volume between the clothes and the skin does not become too large when wet, and the ventilation effect may be insufficient. For example, it can be easily obtained by the manufacturing method described above.
• the woven or knitted fabric for clothes of the present invention is subjected to water absorption processing.
• water-absorbing treatment By applying water-absorbing treatment to the woven or knitted fabric, air permeability is easily improved even with a small amount of sweat.
• a water-absorbing processing agent such as polyethylene glycol diglycerin ⁇ or a derivative thereof, or polyethylene terephthalate-polyethylene glycol copolymer is used for woven or knitted fabric. It is preferably exemplified that 0.25 to 0.50% by weight is deposited with respect to the weight.
• Examples of the water absorption processing method include a bath processing method in which a water absorption processing agent is mixed with the dye solution during dyeing processing, or a knitted fabric is dipped in the water absorption processing solution before dry heat final setting, and a mangle is used.
• Examples thereof include a squeezing method, a gravure coating method, and a processing method by coating such as a screen printing method.
• the garment of the present invention uses a woven or knitted fabric whose dimensions do not change with respect to the above-mentioned wetness and a woven or knitted fabric whose dimensions reversibly increase due to the wetness, and uses the usual method. More sewn. At that time, as described above, each woven or knitted fabric is dyed, water-absorbed, further brushed in the usual manner, UV shielding or antibacterial agent, deodorant, insect repellent, phosphorescent agent, retroreflective agent Various processings that impart functions such as a negative ion generator and a water repellent may be additionally applied.
• Wearing the garment of the present invention increases the size of the part that reversibly expands due to wetness when sweating, and the part flutters during exercise, exhibiting a ventilation effect (fluffy effect), resulting in sweating caused by sweating It can eliminate stickiness and provides excellent wearing comfort.
• a ventilation effect fluffy effect
• the garment of the present invention can be suitably used as an outer garment, a sports garment, an inner garment or the like. It should be noted that the clothes of the present invention may have any accessories such as buttons. Example
• Ortho-chlorophenol was used as a solvent and measured at a temperature of 35 ° C.
• m-Cresol was used as a solvent and measured at a temperature of 30 ° C.
• the fiber sample was left overnight in a room maintained at a constant temperature and humidity of 60% RH at an ambient temperature of 25, and then set to a tensile tester Tensilon manufactured by Shimadzu Corporation with a sample length of 100 mm. stretches at a speed of / min, The strength at break (cNZdtex) and elongation (%) were measured. The average value was obtained from n number 5.
• Boiling water shrinkage (hot water shrinkage) (%) was measured by the method specified in JIS L 1013- 1998. 7.15. The average value was obtained from n number 3.
• Frame circumference 1. Using a 125m rewind frame, load: ⁇ ⁇ ⁇ ⁇ X to overnight tex (0. lgf x total denier) and rewind at a constant speed. Then, twist the small wrinkles into a double ring shape and place it in boiling water for 30 minutes with the initial load of 49Z 2500mNx20x 9 X Totaltex (2 mgx 20X total denier). After that, it was dried in a dryer at 100 ° C for 30 minutes, and after that, it was placed in 160 ° C dry heat for 5 minutes with the initial load applied. After the dry heat treatment, the initial load is removed and the sample is allowed to stand for 24 hours or more in a temperature of 20 ° C and humidity of 65% RH.
• the initial load and 98_ 50 ⁇ 20 ⁇ 9 X ⁇ — Tartex (0.2 gf x 20 ⁇ total denier) ) was measured, and the recognition length: L0 was measured.
• the total length 1 minute after dewetting was measured: L1.
• this total was immersed in water at 30 ° C for 2 hours with the initial load applied and removed, and within 60 seconds, 0.69mNZcm 2 (70mgf / cm 2 ) with filter paper (size 30cmX30cm) Lightly wipe off the water for 5 seconds, apply the initial load and heavy load, measure the total length: L 0 ', immediately remove only the heavy load, and remove the total length after 1 minute of debulking: L 1' taking measurement.
• take out the composite fiber from each piece apply a load of 1.76mN / dtex (200mg / de), measure the fiber length L2, and after 1 minute of dewetting, apply a load of 0.0176mNZdtex (2mg / de). And measure the fiber length L3.
• the yarn was immersed in water at a temperature of 30 ° C for 2 hours and then removed.
• the sample was sandwiched between filter papers (size 30cDiX30cm). (70mgf / cni 2 ) Lightly wipe off the water for 5 seconds, apply 1.76mNZdtex (200mg / de) load, measure the fiber length L 2 ', and after 1 minute dewetting 0. OWGmNZdtex ( Measure the fiber length L 3 'with a load of 2 mg / de). Based on the above measurement values, the following formula is used to calculate the crimp rate during drying DC F (%), the crimp rate during wet HC F (%), and the difference in crimp rate between dry and wet (DC F — HC F ) (%) is calculated. The average value was obtained with n number of 5.
• the composite fiber yarn and other fiber yarns were taken out one by one from each piece, and the yarn length A (mm) of the composite fiber yarn and the yarn length B (mm) of the other fiber yarn were measured.
• the load was 1.76 mN / dtex (200 mg / de) for the non-elastic yarn and 0.0088 mN / dtex (1 mg / de) for the elastic yarn.
• the water repellency was measured according to JIS L 1092, 6.2 (spray test).
• the sample (20cm x 20cm square) is cut in the same direction as the woven and knitted fabric to make the area (cm 2 ) when dried .
• the sample was sandwiched between two filter papers, and 490 N / m 2 (50 kgf / m 2 ) Apply pressure for 1 minute to remove moisture present between the fibers, measure the area of the sample, and use the area when wet (cm 2 ). And the size is changed by the area change rate defined by the following formula. The amount of law change (%) was calculated.
• Area change rate (%) ((area when wet) 1 (area when dry)) / (area when dry) X 100
• Nylon 1 with an intrinsic viscosity [] of 1.3 and a modified polyethylene terephthalate with an intrinsic viscosity [] of 0.39 and 2.6 mol% of 5-sodiumsulfosulfuric acid copolymerized at 270 ° C.
• Spinneret for side-by-one-side type composite fiber described in Japanese Patent Application Laid-Open No. 2000-144518 spinneret for side-by-one-side type composite fiber described in Japanese Patent Application Laid-Open No. 2000-144518 (spinning holes are substantially on the same circumference and spaced apart (d)).
• the polyethylene terephthalate is pushed out from the slit A side and the nylon 6 is pushed out from the slit ⁇ B side at a discharge amount of 12.7 g Z respectively, and the cross section shown in FIG. A side-shaped unstretched composite yarn having a shape was formed.
• the yarn After cooling and solidifying the undrawn yarn and applying an oil agent, the yarn is preheated with a preheating roller at a speed of lOOOOmZ and a temperature of 60 ° C, and then with this preheating roller and a speed of 3050mZ and temperature.
• a drawing heat treatment (drawing ratio: 3.05 times) was applied to a heating roller heated to 150 ° C. and wound to produce 84 6 24 1 composite fiber.
• the stretched composite fiber obtained had a tensile strength at break of 3.4 cNZdtex and an elongation at break of 40%.
• the crimp rate DC during drying was 3.3%
• the crimp rate HC when wet was 1.6%
• the crimp rate when dried was DC and wet.
• Difference with time crimp rate HC (DC—H 0 was 1.7%.
• the circular knitted fabric was dyed at a temperature of 130 ° C. and a keeping time of 15 minutes to reveal the potential crimp performance of the composite fiber.
• the water-absorbing agent polyethylene terephthalate—polyethylene glycol copolymer
• the circular knitted fabric was subjected to a dry heat final set at a temperature of 160 ° C for 1 minute.
• the basis weight of the obtained knitted fabric is 214 g / m 2
• the warp direction stretch rate is 70%
• the weft stretch rate is 110%
• the air permeability during drying is 90ml Zcm 2 / s
• the air permeability when wet was SYOmlZcm 2 , s
• the rate of change in air permeability was 311%, which was satisfactory because the air permeability was greatly improved when wet.
• crimp ratio DC F after drying was 68%
• dry and crimp index difference when wet (DC F — HC f ) was 46%.
• Example 1 Using the composite fiber used in Example 1 and a normal polyethylene terephthalate multifilament yarn (84dtexZ30ni), a 28-gauge double circular knitting machine was used as in Example 1, and the composite fiber yarn was used. 1 yarn with polyethylene terephthalate and multifilament yarn The yarns were alternately fed to each other, and a circular knitted fabric having a smooth structure with a knitting density of 54 courses / 2.54 cm and 34 wales / ⁇ 2.54 cm was knitted. The circular knitted fabric was subjected to dyeing, water absorption, and dry heat final set in the same manner as in Example 1.
• the resulting knitted fabric has a basis weight of 206 g m 2 , the warp direction stretch rate is 50%, the weft stretch rate is 110%, and the air permeability during drying is 150ml Zcn ⁇ Z s
• the air permeability when wet was 280 mlZcm 2 Z s, and the rate of change in air permeability was 87%, which was satisfactory because the air permeability was greatly improved when wet.
• crimp ratio DC F after drying was 63%
• percentage of crimp HC F during wet is 20% dry and crimp index difference when wet ( DC F — HC F ) was 43%.
• a side-cide type composite fiber having a single cross-sectional shape shown in FIG. 1 was formed, and this was cooled and solidified to give an oil agent.
• the obtained undrawn fiber yarn was preheated with a preheating roller having a speed of lOOOOmZ and a temperature of 60 ° C, and then this preheating nozzle and a heating roller heated to a temperature of 150 ° C with a speed of 2700mZ.
• the film was wound by being subjected to a stretching heat treatment.
• a composite fiber of SAdtex ⁇ fi 1 was obtained.
• the composite fiber had a tensile strength at break of 2.3 cN / dtex and an elongation at break of 41%.
• the basis weight of the obtained knitted fabric is 170 g / m 2 , the warp direction stretch rate is 52%, the weft stretch rate is 102%, and the air permeability during drying is 230ml no cm 2 Z s.
• the air permeability when wet was OmlZcn ⁇ Z s, and the rate of change in air permeability was 1-30%, which was unsatisfactory because the air permeability decreased when wet.
• Te composite fiber smell withdrawn from knitted material crimp ratio DC F after drying was 54%, percentage of crimp HC F of wet is 65% dry and crimp index difference when wet (DC F — HC F ) was ⁇ 11%, which was unsatisfactory.
• Example 2 The same side-by-side type composite fiber yarn as described in Example 1 was produced, and this composite fiber yarn was subjected to a normal 28 gauge tricot knitting machine, and the composite fiber yarn was fully set. Pass through the back of the knitting machine with a scissors and use a normal polyethylene terephthalate with a crimp rate of 20% ⁇ Multi-filament false twist crimped yarn (33dtex / 36fil) in full set.
• This knitted fabric is dyed and processed at a temperature of 130 ° C and a keeping time of 15 minutes to reveal the potential crimping performance of the composite fiber, and then padded with a fluororesin-based water repellent finish on the dyed knitted fabric Then, it was dried at a temperature of 100 ° C, and a dry heat final set was applied at a temperature of 160 ° C for 1 minute.
• the resulting knitted fabric has a basis weight of 220 gm 2 , the warp direction stretch rate is 13%, the weft direction stretch rate is 30%, the water repellency is 5 points, and the air permeability during drying is 45nUZcni 2 Z s, breathability when absorbing moisture is 64m 1 cm 2 Z s, and the rate of change in air permeability was 42%, and the air permeability was greatly improved upon moisture absorption, which was satisfactory. Further, in the double case fibers withdrawn from the knitted fabric, crimp ratio DC F after drying is 64%, percentage of crimp HC F during moisture absorption is 32%, dry and crimp ratio difference during moisture absorption (DC F — HC F ) was 32%.
• a knitted fabric was knitted in the same manner as in Example 3, and this was subjected to a dyeing process, a water repellent process, and a dry final set.
• the basis weight is 210 gZm 2
• the stretch rate in the warp direction is 12%
• the stretch rate in the weft direction is 22%
• the water repellency is 5 points
• the air permeability during drying is MmlZcffl 2 / s
• breathability at the time of moisture absorption is 4 lml / cin 2 , s
• the rate of change in breathability is 1-24%. It was.
• crimp ratio DC F after drying was 56%
• percentage of crimp HC F during moisture absorption was 62%
• dry and crimp ratio difference during moisture absorption was -6%, which was unsatisfactory.
• the yarn is preheated with a preheating roller with a speed of lOOOOmZ and a temperature of 60 ° C, and then with the preheating roller with a speed of 3050m.
• a drawing heat treatment was carried out between heating rollers heated to a temperature of 150 ° C. and wound to obtain a composite fiber of 84 dtex Z24fil.
• the composite fiber had a tensile strength of 3.4 cN / dtex and an elongation at break of 40%.
• the crimp rate was measured by performing boiling water treatment on this composite fiber, the crimp rate DC during drying was 3.3%, the crimp rate HC when wet was 1.6%, and the crimp rate during drying was The difference between the shrinkage ratio DC and the crimp ratio HC when wet (DC—HC) was 1.7%.
• This circular knitted fabric was dyed at a temperature of 130 ° C and a keeping time of 15 minutes to reveal the potential crimp performance of the composite fiber.
• the circular knitted fabric was then subjected to a dry heat final set at a temperature of 160 ° C for 1 minute.
• the basis weight is 120 g Zm 2
• the knitting density is 71 course / 54 cm and 61 Wales 2.54 cm
• the dimensional change is 21% (evening 7% in horizontal direction and 13% in horizontal direction).
• the tester wears the resulting shirt and adjusted to a temperature of 28 ° C and humidity of 50%.
• a wear test was performed according to the following wear process, and the humidity in the clothes (between skin and clothes) was measured. The result is shown in Fig. 8, curve A.
• Even during exercise it was difficult to sag due to the bench effect of the composite fiber knitted fabric piece placed on the chest of the shirt, and even after exercising, the feeling of swell was very small due to the effect of the wind. Wearing process:
• the crimped composite fiber-containing woven or knitted fabric of the present invention and the garment of the present invention including the same increase the air permeability by water wetting, promote the drying of the woven or knitted fabric, reduce the air permeability by drying, and have low temperature properties. It has the property of improving, and it is useful as clothing for clothes, sports and inner clothing and clothes.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Knitting Of Fabric (AREA)
• Woven Fabrics (AREA)
• Multicomponent Fibers (AREA)

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• 2005
  • 2005-09-27 WO PCT/JP2005/018238 patent/WO2006035968A1/ja active Application Filing
  • 2005-09-27 CA CA 2579144 patent/CA2579144C/en active Active
  • 2005-09-27 KR KR1020077006960A patent/KR101220658B1/ko active IP Right Grant
  • 2005-09-27 EP EP05788318.3A patent/EP1803844B1/en active Active
  • 2005-09-27 US US11/663,730 patent/US20080132133A1/en not_active Abandoned
  • 2005-09-27 TW TW94133493A patent/TWI354041B/zh not_active IP Right Cessation

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