WO1999055944A1 - Vetement composite - Google Patents

Vetement composite Download PDF

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Publication number
WO1999055944A1
WO1999055944A1 PCT/JP1998/001962 JP9801962W WO9955944A1 WO 1999055944 A1 WO1999055944 A1 WO 1999055944A1 JP 9801962 W JP9801962 W JP 9801962W WO 9955944 A1 WO9955944 A1 WO 9955944A1
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WO
WIPO (PCT)
Prior art keywords
yarn
fiber
white pigment
weight
fabric
Prior art date
Application number
PCT/JP1998/001962
Other languages
English (en)
Japanese (ja)
Inventor
Chisa Hayakawa
Hideo Ikenaga
Naoki Kataoka
Original Assignee
Asahi Kasei Kogyo Kabushiki Kaisha
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 Asahi Kasei Kogyo Kabushiki Kaisha filed Critical Asahi Kasei Kogyo Kabushiki Kaisha
Priority to PCT/JP1998/001962 priority Critical patent/WO1999055944A1/fr
Publication of WO1999055944A1 publication Critical patent/WO1999055944A1/fr

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Classifications

    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • D03D15/20—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
    • D03D15/50—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
    • D03D15/56—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 elastic
    • 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
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • 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
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic
    • 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

Definitions

  • the present invention relates to a composite fabric, in particular, a fabric in which a change in surface color of the fabric is prevented when water is attached or absorbed by contact with water such as wet (hereinafter referred to as a discoloration preventing fabric).
  • the discoloration-preventing fabric of the present invention is used not only for clothing such as browsing, sportswear, sportswear, jerseys, swimwear, snacks, trousers, long pants, and coats, but also for daily miscellaneous goods. In other words, it is suitably used in applications where it gets wet with sweat or water. Background art
  • Japanese Patent Application Laid-Open No. 55-158331 and Japanese Patent Application Laid-Open No. 24265/1993 disclose mixing white pigment into fibers in order to reduce the dampness when wet.
  • JP-A-5-93343 describes a fabric using a core-sheath type composite fiber containing a large amount of a white metal oxide in a core portion. These attempts are to increase the light reflectance of the fiber surface by mixing the white metal oxide, the idea is to reduce the light transmission of the fiber.
  • Clothing has the ability to prevent and suppress such temporary discoloration of appearance. Is desirable. Disclosure of the invention
  • An object of the present invention is to provide a fabric having a performance that is not easily discolored by contact and adhesion of water.
  • the human eye captures the combined light of the surface reflected light reflected by the surface of the object and the internally reflected light that enters the object and is reflected at the internal boundary.
  • the surface reflected light is white light as well as the incident light, and the internally reflected light is colored light of the remaining specific wavelength not absorbed by the dye or the like.
  • the color depth is determined by the ratio of white light to colored light. The smaller the ratio of white light, the darker the color. Here, the ratio of white light decreases as the refractive index of the object (fiber) surface decreases.
  • the refractive index of water (1.33) is smaller than the refractive index of fibers (1.5-1.7), the surface of the fiber wetted with water has a low refractive index, the proportion of white light decreases, and the color increases. Will appear darkly discolored.
  • Fibers containing a large amount of white pigment are relatively less discolored by water than fibers not containing the white pigment.
  • discoloration due to water wetting of the fabric cannot be prevented by using the white pigment-containing fiber alone or by mixing it with other fibers by conventional means such as blended yarn or blended fiber.
  • the present inventors consider that the content of the white pigment is not less than 1% by weight and not more than 6% by weight and the content of the synthetic fiber and / or the white pigment is not less than 3% by weight and not more than 15% by weight and the amount of the white pigment is not more than 2% by weight.
  • a composite fabric composed of a white pigment-containing fiber which is a core-sheath type composite fiber having a sheath portion, and a water-absorbing and diffusing fiber
  • the discoloration of the fabric when it comes into contact with rainwater, sweat, or other water is reduced. I knew that it would be suppressed.
  • the present inventors have found that, by constituting a fabric with a white pigment-containing fiber and a water-absorbing and diffusing fiber, a remarkable effect of preventing discoloration can be obtained particularly by organizing the fabric into a specific structure. .
  • the present invention provides a fabric comprising the white pigment-containing fiber and the water-absorbing diffusible fiber, wherein the white pigment-containing fiber has a coverage of at least 40%, preferably at least 50%, and the front surface of the fabric.
  • a composite fabric formed by forming the structure of the fabric in an array that uniformly covers the fabric.
  • the coverage is expressed as a percentage of the area of the exposed white pigment-containing fiber in the flat area on the fabric surface side, and is specifically calculated using an image analysis method for the fabric surface described later.
  • the composite fabric of the present invention since water-absorbing and diffusing fibers coexist in the fabric to form a fabric structure, water that has entered the fabric is immediately absorbed and diffused, eliminating uneven distribution of water on the fabric surface, The amount of water present per unit area of the fabric can be quickly reduced. Thus, the color of the portion of the fabric in contact with the water does not change from the surrounding color, and the discoloration can be visually inconspicuous.
  • the above-described fabric of the present invention includes a yarn made of a white pigment-containing fiber (hereinafter, sometimes referred to as a white pigment-containing yarn) and a yarn made of a water-absorbing and diffusing fiber (hereinafter, sometimes simply referred to as a water-absorbing and diffusing yarn). ) Knitting or weaving, or by knitting or weaving a composite yarn such as a yarn composed of white pigment-containing fiber and a yarn composed of water-absorbent diffusible fiber or a coated yarn. Knitted or woven fabric having a single-layer structure. The fabric may be a single-layer knit or woven fabric, or a multi- or multi-layer knit or woven fabric.
  • the knitted fabric is a multilayer structure knitted fabric (woven fabric) in which the white pigment-containing yarn is arranged on the surface layer.
  • the surface layer is substantially white pigment-containing yarn. It is essential that the knitted fabric (woven fabric) be occupied by many people.
  • a white pigment-containing yarn covers the front side of a knitted fabric (woven fabric) as a single-layer knitted fabric (woven fabric) in which a white pigment-containing yarn and a water-absorbent diffusible yarn are alternately or aligned and knitted (woven). It is also possible to use a fabric having a structure as described below.
  • FIG. 1 shows a single yarn having a W-shaped cross section that constitutes a typical water-absorbing and diffusing fiber.
  • Fig. 2 is a knitting diagram of a double-sided tuck knitted fabric showing an example of a multilayer knitted fabric.
  • Fig. 3 is a knitting diagram of Ura Kanoko ground showing another example of a multilayer knitted fabric.
  • Fig. 4 shows a knitting diagram of a 2-course knitted fabric showing an example of a single-layer structure knitted fabric.
  • the white pigment-containing fiber and the water-diffusible fiber constituting the composite fabric of the present invention will be described.
  • White pigment-containing fibers are synthetic fibers containing 1% to 6% by weight of white pigment in the fiber, and the core and white pigment content of Z or white pigment containing 3% to 15% by weight.
  • a core-sheath type composite fiber having a sheath portion of 2% by weight or less is used.
  • the type of the white pigment to be mixed with the white pigment-containing fiber of the present invention is not particularly limited as long as the production of the yarn is not hindered.
  • metal oxides such as titanium oxide, zinc oxide, magnesium oxide, and calcium carbonate are preferred, and considering cost, titanium oxide is the most preferred. Are suitable.
  • the content of the white pigment in the white pigment-containing fiber is 1% by weight or more and 6% by weight or less in the case of dull fiber, and 2% by weight or more and 5% by weight. % Or less is desirable. If the content of the white pigment exceeds 6% by weight, the strength and elongation of the fiber is remarkably reduced, which may make the production and knitting of the yarn difficult, and may cause abrasion of the guide and the like, and drawbacks such as burrs. If the amount is less than 1% by weight, it is difficult to impart a sufficient discoloration preventing effect to the fabric.
  • the content of the white pigment in the core is 3% by weight or more and 15% by weight or less, and it is desirable that the content be 5% by weight or more and 10% by weight or less.
  • the content of the white pigment in the core exceeds 10% by weight, the strength gradually starts to decrease, and when it exceeds 15% by weight, the strong elongation remarkably decreases. If the content is less than 3% by weight, the desired effect of preventing discoloration cannot be obtained.
  • the core portion and the sheath portion of the core-sheath structure fiber may or may not have the same base polymer.
  • the sheath portion may be a cation-dyeable polymer.
  • the core in the case of the core-in-sheath type composite fiber of a polymide, the core may be Nymouth 66 and the sheath may be Nymouth 6, and any combination may be used.
  • the core component and the sheath component may be combined concentrically or eccentrically.
  • the core / sheath weight ratio is preferably in the range of 1/3 to 3Z1, and particularly preferably 1/2 to 2/1. If it is less than 1/3, the effect of preventing discoloration becomes small, and if it exceeds 3Z1, it may be difficult to cover the core component with the sheath component during spinning.
  • the white pigment-containing fiber for example, a fiber produced by melt spinning such as polyamide, polyester, or polypropylene is desirable in production. Either a filament yarn or a filament-processed yarn of these fibers may be used. However, if the knitted fabric has the same structure, a crimped filament-processed yarn is used. It is preferable that the cover factor is large because the discoloration becomes less noticeable because the cover factor is large.
  • core-sheath type composite fibers are more suitable than dull fibers because they are superior in discoloration prevention effect, coloring property and processability. In addition, this core-sheath composite fiber has a fiber variation value U of 2 to 8%.
  • the texture is dry and the appearance is natural fiber-like, making it a more camouflage fabric and discoloration is less noticeable.
  • a soft feeling of span tone can be obtained by the loop fluff.
  • the fiber fluctuation value U was measured using USTER TESTER 3 (manufactured by Zellweger), with a high-pass filter, measurement speed of 50 m / min, Measuring Sloot 3, Test Tim e 5 min, Tensional Force 1.25%, Pressure 2.5 It is a value measured under the conditions of bar and Twist 1500 s.
  • the water-absorbing and diffusing fiber referred to in the present invention refers to a fiber having a property of absorbing water and a property of diffusing Z or water.
  • water absorption refers to water absorption based on the property of the fiber substrate itself absorbing water, such as regenerated cellulosic, and crimping or hollowing of a single fiber of a synthetic fiber formed of a hydrophobic polymer. It includes the structure, the fiber morphology such as the irregular cross-section structure, the surface area effect of the fineness fiber, the water retention function by the void effect between the fiber surface and the single fiber.
  • the property of diffusing water refers to the form of the synthetic fiber and the performance of the fiber having a large water diffusion property and diffusivity between the fiber surface and the single fiber due to the capillary action of the fine fiber.
  • the water-absorbing and diffusing fibers used in the present invention may be short fibers or long fibers.
  • the water-absorbent diffusive fiber used in the present invention is, as described later, a knitted fabric obtained by knitting a yarn having a total denier (d) of 100d to 160d using a 28G single-knitting machine. 1.8 g / 100cm 2 ) and thickness (mm), apparent density (a) Calculated based on per unit area / thickness, water retention (%) (b), and water diffusion area (cm) (c) It is preferable that the fiber has X and Y values satisfying the following conditions.
  • X is greater than or equal to 1.6, and more preferably greater than or equal to 1.9.
  • Y it is necessary for Y to be 3 or more while satisfying X.
  • the larger the numerical value the higher the diffusion tendency.
  • the water binding capacity increases as the value of X increases. Therefore, in the fabric of the present invention, it is preferable to select a fabric in which the X value of the water-absorbing and diffusing fiber is larger than the X value of the white pigment-containing fiber.
  • the selection of the fibers to be used is extremely appropriate in the design practice of the anti-discoloration fabric. There is an advantage that can be done.
  • the single yarn When used as a water-absorbent diffusive fiber in synthetic fibers, the single yarn has a cross-sectional shape of L, C, W, Z, M, gear type, etc. Fiber (porosity 5% to 40%) raw yarn and Z or processed yarn are used. In this case, a raw yarn and / or processed yarn having a single yarn denier of 2 d or less is used.
  • the degree of irregularity of the single yarn of the irregular cross-section fiber is preferably 1.2 or more and 2.2 or less, more preferably 1.4 or more and 2.2 or less.
  • the ratio is 1.2 or more, the balance of water absorption and diffusion is better than that of a round cross section.
  • the ratio is more than 2, the production stability such as spinnability is poor.
  • the degree of irregularity is calculated by calculating the cross-sectional area and perimeter (perimeter) of the monofilament single fiber, then calculating the radius of a perfect circle having the same cross-sectional area, and then calculating the perimeter of the perfect circle. Is calculated by the following equation.
  • Degree of heterogeneity Perimeter of heteromorphic fiber Z Perimeter of perfect circle with the same cross-sectional area as heteromorphic fiber
  • the degree of heterogeneity is 1.4 or more 2. 2 or less, and rather is favored 1. and 5 or more 0, 0 3 is 60. Not less than 160 °, preferably 120 ° to 150 ° It should be a surface filament.
  • the fabric using the W-shaped cross-section yarn having a single yarn denier of 0.3 to 1.5 d is soft, and, for example, a soft texture can be obtained even with a high-density woven fabric.
  • This W-section fiber has the ability to increase the capillary suction force due to the fine capillaries formed when overlapping, and to diffuse the retained water without transferring it to other parts (without re-wetting).
  • the content of the white pigment in the water-absorbing and diffusing fiber is not limited, but is not less than 0.2% by weight, preferably not less than 0.6% by weight, more preferably not less than 1% by weight. Since the discoloration of the conductive fiber itself is also difficult, the discoloration becomes less noticeable even when the fabric is used, and the discoloration is less noticeable even when a fabric that appears frequently on the front side is used.
  • the water-absorbing and diffusing fibers are preferably synthetic fibers.
  • Synthetic fibers do not absorb water due to the fiber matrix, but have physical elements, that is, water retention by crimping, capillary action between single fibers, water absorption and diffusion due to the effect of increasing the surface area due to the irregular cross section, etc. This is because they can do this.
  • the synthetic fiber is subjected to crimping to give a crimp, a synthetic fiber having improved water retention can be obtained.
  • low crimp that is, crimp elongation rate of 15% or less is preferable? It is good to be 10%.
  • the space for retaining water is small, but on the other hand, the diffusivity of water is reduced, which has a negative effect on preventing discoloration of the fabric.
  • the shape of the synthetic fiber and the yarn processing conditions in this way, the balance between water absorption and diffusivity is excellent.
  • the synthetic fiber is subjected to hydrophilic processing at the stage of yarn or fabric, the affinity with water increases, which is more preferable.
  • Cellulose composite yarns composed of cellulose fibers and synthetic fibers may be used as the water-absorbing and diffusing fibers.
  • Natural fibers such as regenerated cellulose fibers such as viscose rayon and cupra rayon, which are water-absorbing fibers themselves, and natural fibers such as cotton, hemp, and wool can be used in the form of spun yarn, long fiber yarn, or processed yarn. If these are fibers that have been improved so that they can be dyed with a disperse dye, they have the advantage that they can be dyed with the same dye in one bath even if they are composite materials with polyester fibers. These fibers, which are capable of absorbing water by the fiber substrate itself, can also absorb water vapor-like sweat, so that they do not easily produce a stuffy sensation when worn. Among them, cotton yarn and regenerated cellulose long fiber yarn, which have a relatively long single fiber length and a relatively long length, have high water absorption and diffusion properties. Can be satisfied. In regenerated cellulose filaments, single-denier denier
  • a yarn having a single yarn denier of less than 0.5 d is not preferable because physical properties are reduced by absorbing water.
  • the water absorption and diffusion properties of the fibers can also be evaluated and selected according to a method for measuring the water absorption and water diffusibility of a yarn made of the target fiber.
  • the yarns constituting the multilayer fabric are skein-wound, and are scoured, dyed, and dried under the same conditions as in the scouring, dyeing, and drying processes used in the production of the intended multilayer fabric, and are used as sample yarns.
  • the used yarn is a filament yarn
  • the total denier is 75 by bundling single yarn deniers that are the same as the single yarn denier of the filament yarn used in the Examples and Comparative Examples.
  • the yarn to be used is a spun yarn
  • a yarn having a thickness and twist equivalent to 10 s of a cotton yarn having a twist of 10 twists per m is prepared by plying so that the mechanical coefficient shown by the following formula becomes 120 Sample thread And
  • Cut 50 cm as a measurement sample from the sample yarn prepared in this way apply a load of 0.1 g / d to the lower end of the yarn while fixing the upper end, apply the lower end to water (room temperature), and after 10 minutes Measure the vertical distance of water uptake. The evaluation is based on the average value of 10 tubes. If the suction distance is 2 cm or more, the water absorption is evaluated as good.
  • Water diffusivity is measured using the same yarn as the sample yarn used for water absorption measurement. Cut 1 m of the sample yarn, fix one end of the yarn, hook a part close to the other end on a pulley, and apply a load of O.lg / d to the end to horizontally lay the yarn. Stretch. Apply 0.01 cc of water near the center of the thread under tension and measure the horizontal movement distance of the water 10 minutes later. Measurement is 20. C, the humidity was 65% RH, and the water diffusivity was evaluated by averaging 10 measured values. A yarn with a moving distance of 10 cm or more is evaluated as having good water diffusibility.
  • the composite fabric is obtained in the form of a knitted or woven fabric composed of the white pigment-containing yarn and the water-absorbing and diffusing yarn.
  • the white pigment-containing fiber has at least 40%, preferably at least 50%, of the surface area of the knitted fabric when viewed from the front side of the knitted fabric.
  • a knitted fabric (woven fabric) in which the white pigment-containing yarn covers at least 40% of the surface of the knitted fabric (woven fabric) can be a single-layered one in terms of the structure of the knitted fabric (woven fabric). It can also be something.
  • the yarn containing white pigment is formed of a knitted (woven) structure that covers the surface of the fabric randomly and uniformly.
  • the surface layer of the knitted fabric is knitted (woven) with a white pigment-containing yarn, and a knitted (woven) structure in which a layer of a water-absorbing and diffusing yarn is formed below the layer. It is knitted (woven) in.
  • the fabric has a multilayer structure of two or more layers.
  • the multi-layer fabric refers to a structure in which two or more types of textures are apparently superposed in a layer state to form one piece of fabric.
  • the side that becomes the front surface when worn is the surface layer
  • the layers other than the surface layer are the inner layer.
  • the back layer is the inner layer that is closest to the skin and is in contact with the skin.
  • the multilayer form may be either woven or knitted.
  • white pigment-containing fibers are arranged so as to occupy most of the surface layer by means of warp double weave, double weave, triple weave, etc.
  • the method may be to use a layer other than the surface layer.
  • a multilayer knitted fabric having two or more layers can be formed of a weft knitted fabric or a warp knitted fabric.
  • Weft knitted fabrics can be knitted with a double knitting machine using a layer knitting machine. It can also be done. For example, for a three-layer knitted fabric, use a double-knitting machine with a double-sided tack structure as shown in Fig. 2 and supply yarn-containing fibers 2 and 5 with white pigment-containing fibers and 1, 4, 3, and 6 with water-absorbing and diffusing properties. If the fibers and Z or other fibers are arranged, the knitted fabric will have a white pigment-containing fiber occupying more than 90% of the surface layer.
  • weft knitted fabrics of three or more layers can be made. Also, even for a single layer knitted fabric such as circular knitting by a single weft knitting machine, the knitted fabric is partially raised by applying a tack to a specific stitch and apparently It can be made into two layers or weft knitted fabric with two or more layers by plating. Specifically, using the back fir texture shown in Fig. 3 and disposing the white pigment-containing fibers in yarn feeders 1 and 3 and the water-absorbing and diffusing fibers in 2 and 4, the white pigment-containing fibers become the surface layer. Knitted fabric occupying more than 80% of the total. Front and back The integrated reversible structure is also a fabric having a multilayer structure. In warp knitting, it is possible to knit in multiple layers, such as two, three or four, by reducing the number of proofs.
  • the white pigment-containing fibers occupy 50% or more of the surface area of the fabric. More than 60% is better. Further, it should occupy 1/4 or more, preferably 1/3 or more of the thickness of the cross section of the fabric. It is preferable that the water-absorbing and diffusing fibers constitute at least one layer other than the inner layer, that is, the surface layer. It does not noticeably discolor the surface layer made of white pigment-containing fiber by actively absorbing and diffusing sweat from the skin and water applied to the surface layer, not the surface layer, but the inner layer made of water-absorbent fibers. Because they can do it.
  • the anti-tarnish layer and the water absorption / diffusion layer independent the roles can be shared and the anti-tarnish effect is improved.
  • Other fibers may be mixed with the multi-layered fabric in addition to the white pigment-containing fibers and the water-absorbing and diffusing fibers.
  • the preferred mixing ratio is 30% by weight or more and 70% by weight or less, more preferably 40% by weight or more and 60% by weight or less, in the case of a multi-layered fabric having white pigment-containing fibers on the surface layer.
  • Water-absorbing and diffusing fibers are used in an amount of 30% by weight or more and 70% by weight or less, more preferably 40% by weight or more and 60% by weight or less, and optional fibers are used in an amount of 40% by weight or less, preferably 20% by weight or less. I just need.
  • An elastic knitted fabric whose surface is covered with a white pigment-containing fiber layer can be easily prepared by a rating method, a knitting method, or the like.
  • a white pigment-containing fiber yarn and a water-absorbing and diffusing fiber yarn are aligned with a bare or coated elastic yarn using a circular knitting machine or a sock knitting machine, and are used to make a sheet of jersey, kago rice, rice, By knitting a smooth or seamless knitted fabric, a knitted fabric whose surface is covered with the white pigment-containing fiber can be obtained.
  • warp knitting half, back half, power net, satin knitting, etc. are performed by knitting methods such as inserting a coated elastic yarn coated with white pigment-containing fiber, or knitting using multiple sheets.
  • a warp knitted fabric having a high coverage of the white pigment-containing fiber can be prepared.
  • the white pigment-containing fiber is a core-sheath composite fiber
  • an elastic yarn such as spandex
  • the product of the content of the white pigment in the core and the weft density is 150 to 100, preferably 300 to 700.
  • the elastic nits knitted so as to have not only the effect of preventing discoloration but also a soft and drapeable texture.
  • the knitted fabric has a white pigment-containing fiber occupying 90% or more of the surface.
  • a single-layer structure can be made thinner and lighter than a multilayer structure, and is suitable for sportswear and the like.
  • the single layer means that the form of the fabric is a single layer.
  • the texture of the fabric can be selected arbitrarily as long as it is a woven or knitted fabric in which the white pigment-containing fibers and the water-absorbing and diffusing fibers randomly appear on the surface of the fabric. In order to distribute evenly, only one fiber is not concentrated on a part of the fabric. In addition, it is necessary not to use continuously more than 3 mm width in the middle, Z or weft direction of the fabric.
  • the area occupied by the white pigment-containing fiber on the fabric surface may be at least 40%.
  • the water-absorbing diffusion fibers are preferably 40-50%.
  • the white pigment-containing fiber and the water-absorbing and diffusing fiber are adjacent to each other in the fabric, the water is transferred to the water-absorbing and diffusing fiber having a higher X value, that is, having a high water-absorbing effect, and is actively diffused. Therefore, the discoloration becomes less noticeable.
  • Single-layered fabrics are thinner and lighter than multi-layered fabrics, and have high diffusibility and quick-drying properties, so they also have the effect of quickly eliminating discoloration.
  • Examples of the structure include plain weave, twill weave, satin weave, and their modified structures using white pigment-containing fibers and water-absorbent diffusible fibers alternately for warp, weft, and weft for textiles. Can be used.
  • a yarn arrangement such as a two-course sheeting is used in which a white pigment-containing fiber and a water-absorbing and diffusing fiber are supplied every other or every two fibers at the yarn feeder of a single knitting machine. If two or more kinds of yarns are evenly mixed in a single knitting structure in consideration of this, it is possible to make a single-layer structure even in a conventional structure such as smooth and fawn. For example, if two-ply sheeting as shown in Fig. 4 is used, and white pigment-containing fibers are alternately arranged in yarn feeders 1 and 4 and water-absorbing and diffusible fibers are alternately arranged in yarn supply openings 2 and 3, white pigment-containing fibers will be used.
  • the water-absorbing diffusible fibers become a single-layered fabric that looks random in a staggered manner for each first stitch.
  • the area occupied by the white pigment-containing fiber and the water-absorbing and diffusing fiber on the fabric surface is close to 50%, respectively.
  • the single-layered fabric may be mixed with white pigment-containing fibers and water-absorbing and diffusing fibers with other fibers.
  • the preferred mixing ratio is 40% to 60% by weight for the white pigment-containing fiber, 40% to 60% by weight for the water-absorbing and diffusing fiber, and 20% by weight for any fiber.
  • the fabric using the composite yarn has an advantage that the yarn itself has an effect of preventing discoloration, so that it is thin and lightweight, and an arbitrary knitting structure can be selected.
  • the preparation of the composite yarn includes false twist, elongation difference false twist, ply twist, false twist ply twist, force balling, air blending such as taslan and interlace, interlace false twist, and post-twist. It is possible to use a normal yarn processing method represented by false-twisting, lamination, spinning of silofil or silospan.
  • the preferred structure of the composite yarn is a yarn having a multilayer structure of two or more layers, in which the core layer of the white pigment-containing fiber of the outer layer has a large cover factor with respect to the water-absorbing and diffusing fibers. Even when the fabric is knitted or woven using the composite yarn having the multilayer structure, the above-described on-machine composite is realized by actively absorbing and diffusing sweat and water by the water-absorbing and diffusing fibers of the core layer instead of the outermost layer. The same level of discoloration prevention as that of the fabric obtained by the above method can be obtained.
  • the term “multilayer” refers to a state in which the outermost layer occupying the outer peripheral portion of the cross section of the yarn is entangled or wound around the inner core layer.
  • the core layer refers to a fiber layer disposed inside the yarn, and may be composed of one type of fiber, or may be composed of two or more types of fibers in a layered state.
  • a method of disposing a white pigment-containing fiber in the outer layer, making the yarn used for the outer layer thicker than the yarn used for the core layer, increasing the crimp, and giving a difference in yarn length is used.
  • the discoloration becomes less conspicuous when the white pigment-containing fiber used for the outer layer occupies 60% or more, more preferably 70% or more of the side area.
  • the side area of a ply-twisted yarn obtained by giving a 300 T / M twist by using a high-crimped yarn with a crimp elongation of 20% for the outer layer and a 50-d raw yarn for the core layer is 75%.
  • the outer layer yarns accounted for more than 70% Become.
  • the preferable mixing ratio of the white pigment-containing fiber and the water-absorbing diffusible fiber in the multilayer structure yarn is such that the white pigment-containing fiber in the outer layer is 30% by weight or more and 70% by weight or less, more preferably 40% by weight or more and 60% by weight or less.
  • the water-absorptive and diffusible fibers of the core layer may be used in an amount of 30% by weight or more and 70% by weight or less, more preferably 40% by weight or more and 60% by weight or less.
  • the coated elastic yarn that uses the white pigment-containing fiber and the water-absorbent diffusible fiber as the coating fiber (or yarn) is a composite yarn having a large surface coverage of the white pigment-containing fiber.
  • Ester- or ether-based polyurethane elastic yarn or polyester-ester elastic yarn (10 to 15 denier) core yarn is singly reinforced, double-forced balling method, or fluid injection.
  • Coated elastic yarn coated with white pigment-containing fiber and water-absorbing and diffusing fiber can be prepared by the coating by processing and the core span method (CSY).
  • Elastic yarns produced by the single covering and double force balling methods can be prepared with an elastic yarn supplied at a draft rate of about 2.0 to 3.5 and a force balling twist of 300 to 2000 TZm.
  • a yarn having a discoloration prevention effect suitable for The composite yarn may have a single-layer structure.
  • Single-layer yarns have a quick-drying property and are also effective in quickly eliminating discoloration.
  • the single layer of the composite yarn means a state in which the white pigment-containing fiber and the water-absorbing and diffusing fiber each appear on the yarn surface at almost the same ratio. It is preferable that the white pigment-containing fibers occupy 40% or more and 60% or less, and more preferably 50% or more and 60% or less of the side area of the composite yarn.
  • the white pigment-containing fiber and the water-absorbing and diffusing fiber may be randomly mixed in the cross section of the fiber, or the white pigment-containing fiber and the water-absorbing material may be mixed side by side.
  • the state in which the aggregate units of the dispersible fibers are repeatedly arranged may be used.
  • the white pigment-containing fiber and the water-absorbing and diffusing fiber are mixed at random, water exchange occurs between the white pigment-containing fiber and the water-absorbing and diffusing fiber.
  • the discoloration becomes less noticeable.
  • certain aggregate units such as side-by-side
  • water is generated in the aggregate of white pigment-containing fibers and water-absorbing and diffusing fibers.
  • water migrates to the water-absorbing and diffusing fibers and is diffused.
  • the discoloration is less noticeable, but the effect is more pronounced on the side-by-side, where the water absorption and diffusion forces are aggregated.
  • a composite yarn having a single-layer structure there are methods such as ply-twisting a fiber containing a white pigment having the same total denier and a yarn of a water-absorbing and diffusing fiber with no difference in yarn length, and air-mixing. .
  • both the white pigment-containing fiber and the water-absorbent diffusible fiber are 75 d, and the single-layer structure yarn when interlace blending with no difference in yarn length is performed.
  • the synthetic fibers are randomly mixed, and each side is occupied by a similar proportion.
  • the preferred mixing ratio of the white pigment-containing fiber and the water-absorbing fiber in the single-layer structure yarn is 40% to 60% by weight of the white pigment-containing fiber and 40% to 60% by weight of the water-absorbing diffusible fiber. Any fiber may be used up to 20% by weight.
  • This single-layer yarn can be air-conditioned after dyeing to give the appearance of a natural fiber, expanding its applications.
  • the thickness of the yarn constituting the fabric of the present invention is arbitrarily selected in a region commonly used as a yarn of ordinary woven or knitted fabric for clothing.
  • a length of 30 d to 300 d for long fibers and a length of 20 s to 80 s (cotton count) for spun yarn are preferably used. However, it is not limited to this thickness.
  • a water absorbing agent in a fabric dyeing step or a finishing step.
  • the affinity between synthetic fibers and water is particularly improved, and the water diffusion performance level of the fabric is increased as a whole, so that the degree of discoloration is further reduced.
  • a water-absorbing agent or a hydrophilicizing agent containing a hydrophilic copolymer as a main component such as SR Series manufactured by Takamatsu Yushi Co., Ltd. and FINSET F101 manufactured by Senniki Co., Ltd. It is good to give 3 to 5% ow f.
  • the fabric of the present invention has a large discoloration prevention effect or a slightly small effect depending on the color to be dyed in comparison with the conventional product.
  • the greatest effect is from light to medium dark colors such as blue, green, red, yellow, orange, violet, and gray, and the smaller effects are dark to extremely dark, white, and black.
  • the method of measuring the performance of the composite fabric and the fiber of the present invention is as follows.
  • JIS-I1 090 Synthetic fiber bulky processed yarn test method, Measured according to 5.7 “Expansion method B method”.
  • the total denier of the yarn is 100 d to 160 d, and the knitted fabric is knitted using a 28 G one-piece knitting machine, and the knitted fabric is scoured, water-absorbed, and finalized. Process in the order of the set. At this time, the finished fabric is conditioned for 24 hours in a constant temperature room (temperature 20 ° C, humidity 65%). The basis weight of the finish made to be 1.5 ⁇ 1.8 (g / 100cm 2). The knitted fabric thus obtained is cut into a square of 10 cm, and the following data is measured in a constant temperature room.
  • the dye diluent is adjusted using a dye having a small molecular weight and being easily soluble.
  • the water absorption diffusivity is evaluated by knitting the yarn used for both the on-machine composite and the yarn composite with a single-knitting machine as described above. For example, when crimped yarn is used for the on-machine composite or yarn composite, the evaluation is made by jersey knitting of the crimped yarn.
  • Scouring agent score roll 2 g / L (Kao Corporation)
  • Um E * ((um L *) 2 + (a a *) 2 + (b b *) 2 ) 1/2
  • the discoloration sensory values visually were classified by 10 inspectors according to the following sensory evaluation criteria, and their average values were obtained. Specifically, a sample of 20cmix 20cm is prepared, and 1ml of water is pipetted almost at the center of the sample. After 30 seconds, the part colored by dropping water and the surrounding area are compared. In order from the one with the smallest discoloration
  • the surface of the fabric or the side surface of the yarn is analyzed by image analysis of the surface of the yarn or fabric, and the photograph is taken at a magnification suitable for the analysis.
  • the photograph is captured in an image and observed, and the white pigment-containing fiber and other fibers that appear on the surface side of the knitted fabric are binarized by color to select only the white pigment-containing fiber.
  • the ratio (%) of the ratio of the white pigment-containing fiber to the entire area is calculated by image analysis.
  • Polyester filament yarns with a W-shaped cross section and a degree of irregularity of 1.55 (75 d / 30 f, 75 d Z60 f, 50 d / 30 f) are used.
  • the number of twists is Z 3200T / M for 75d, Z-2400T / M for 150d, the temperature of the first heater is 210 ° C, and the temperature of the second heater is 180. False twisting was performed at 13 ° C, an overfeed rate of 13% and a DR of 1.04 to obtain a false twisted yarn having a crimp elongation of 18% to 22%.
  • the number of twists is Z-2400T / M
  • the temperature of the first heater is 180 ° C
  • the temperature of the second heater is 170 ° C
  • the overfeed rate is 13%
  • DR 1.04 to obtain a false twisted yarn having a crimp elongation of 18% to 22%.
  • twisted yarn was obtained at a yarn processing speed of 20 m / min, a twist direction of S, and a twist number of 300 T / M.
  • the feed rate of the core layer yarn (50d) was 1.5%
  • the feed rate of the outer layer yarn (75d) was 4%
  • the air pressure was 2 kg.
  • the feed rate of the core layer yarn (50d) was 5%
  • the feed rate of the outer layer yarn (75d) was 15%
  • the air pressure was 7 kgZ.
  • the feed rate of the core layer yarn (50 d) was 1.5%
  • the feed rate of the outer layer yarn (75d) was 4%
  • the air pressure was 2 kg. Interlaced at / cm 2 .
  • Machining condition 8 Taslan machining
  • the feed rate of the core layer yarn (50 d) was 5%
  • the feed rate of the outer layer yarn (75 d) was 15%
  • the air pressure was 7%. It was the Tathra down processing in kg / cm 2.
  • the number of twists of the outer layer yarn (75d) was set to Z- 1500T / M, and the number of spindle rotations was 10,000 for the core layer yarn (50d) at a yarn feeding speed of 100m / min. Power balling was performed at 5,000 rpm.
  • Machining condition 13 Taslan machining
  • each thread (75d) was fed at a feed rate of 10% and an air pressure of 7 kg / cm 2 to form a taxane.
  • Soaping agent Sunmol RC700 (Nika Chemical Co., Ltd.)
  • Cellulose fiber dyeing Dye: Sumifix Brilliant Blue R 1.0% owf (Sumitomo Chemical Co., Ltd.)
  • Scouring agent score roll 2 g / L (manufactured by Kao Corporation)
  • the surface layer consists of a core containing 8% by weight of titanium oxide and a sheath containing 0.05% by weight of titanium oxide.
  • Polyester-sheath-type composite fiber 75dZ36f with a core-to-sheath weight ratio of 1/1. Yarns that have been false twisted under processing condition 1 by aligning two yarns?
  • the back layer is made of two yarns of Polyester W-type irregular cross-section fiber (75d / 30f) containing 0.1% by weight of titanium oxide and false-twisted under processing condition 2 to obtain 28GG.
  • the back kashigo ground was knitted by a single knitting machine and processed by the dyeing method 2 in the dyeing process described above.
  • the water absorption value and water diffusivity value of the yarn used for the backing layer were 2.5 cm and 13. lcm, respectively.
  • the yarn P occupied 85% of the surface layer.
  • Q became 50% of the back layer, respectively.
  • the knitted fabric was a fabric with very little discoloration when wet.
  • Cloth data basic weight, surface image analysis result, color difference ⁇ value, discoloration sensory value
  • thread data P, Q thread processing method, XY value, titanium oxide Table 1 summarizes the contents.
  • Example 1 yarn? Table 1 shows the results of knitting Ura-Kagochi in the same manner as in Example 1 except that the amount of titanium oxide in Q and the amount of yarn Indicated.
  • the water absorption value and diffusivity value of this backing layer were 2. O cm and 8.3 cm, respectively.
  • Example 2 the discoloration when wet was very small.
  • Table 1 shows the results of knitting Ura-Kagochi in Example 1 in the same manner as in Example 1 except that the amount of the titanium oxide in the yarn and Q was changed. In Example 3, the discoloration when wet was small.
  • Example 1 yarn? Table 1 shows the results of knitting Ura-Kagochi in the same manner as in Example 1 except that the amount of titanium oxide of Q and the cross-sectional shape of yarn Q were changed.
  • Example 4 resulted in a fabric whose discoloration upon wetting was very small.
  • Example 1 yarn? The knitted back knitted fabric was produced in the same manner as in Example 1 except that the unprocessed raw yarn was used for the yarn Q, the amount of titanium oxide used for the yarn Q, and the crimping form was changed. 1
  • Example 5 was a fabric with very little discoloration when wet.
  • Example 1 except that the core-sheath type conjugate fiber constituting the yarn P was changed to a fiber variation value of 3.3%, 75 ⁇ 3/36 thick and thin filament yarn, and processed under processing condition 3.
  • Table 1 shows the results of the evaluation of the result of knitting Ura-Kagochi in the same manner as in Example 1.
  • Example 6 is very discolored when wet The fabric is small, has a dry texture, and has a natural fiber appearance.
  • Example 1 the back fir ground was knitted and evaluated in the same manner as in Example 1 except that the number of filaments of the W-shaped cross section yarn constituting the yarn Q was changed to 75 d / 60 f. Table 1 summarizes the results. In Example 7, the discoloration when wet was very small, and the softness was further improved.
  • Table 1 shows the results of knitting Ura-Kagochi in Example 1 in the same manner as in Example 1 except that the amount of the titanium oxide in the yarn and Q was changed. Comparative Example 1 was a fabric in which discoloration when wet was conspicuous. (Comparative Example 2)
  • Example 1 yarn? The knitting of the back flap was performed in the same manner as in Example 1 except that the amount of titanium oxide, the cross-sectional shape, the number of filaments, and the yarn processing method for the yarn Q were changed. The results are summarized in Table 1. Comparative Example 2 was a fabric with noticeable discoloration when wet.
  • Example 1 yarn? Table 1 shows the results of knitting Ura-Kashigo fabric in the same manner as in Example 1 except that the amount of titanium oxide in Q and the amount of titanium oxide and the raw rayon in yarn Q were changed. Indicated. Comparative Examples 3 and 4 were fabrics in which discoloration when wet was very noticeable.
  • Example 1 yarn? The knitting of the back flap was performed in the same manner as in Example 1 except that the amount of titanium oxide, the cross-sectional shape, the number of filaments, and the yarn processing method for the yarn Q were changed. The results are summarized in Table 1. In Comparative Examples 5 and 6, the discoloration when wet was very noticeable. (Comparative Example 7)
  • Example 1 the back fir ground was knitted in the same manner as in Example 1 except that the amount of titanium oxide in the yarn and Q was changed, and the evaluation results were summarized.
  • Comparative Example 7 was a fabric that had very little discoloration when wet, but had poor process passability.
  • Example 1 yarn? Table 1 shows the results of knitting Ura-Kagochi in the same manner as in Example 1 except that the amount of titanium oxide, the cross-sectional shape, and the number of filaments of Q were changed. Comparative Example 8 was a fabric with very little discoloration when wet, but poor process passage.
  • Polyester core-sheath type composite fiber (50d / 36f) consisting of a core containing 8% by weight of titanium oxide in the warp and a sheath containing 0.3% by weight of titanium oxide, with a core-to-sheath weight ratio of 1Z1.
  • a 260-ply Zinclu weft density was 155 ply Zinch and a basis weight of 160 gZm 2 was woven into a flat double woven fabric, and passed through Dyeing Method 2.
  • the structure was such that the core-sheath composite yarn was visible on the surface layer, and the discoloration was very small.
  • Table 1 summarizes the fabric data and the yarn data.
  • the surface layer consists of a core containing 10% by weight of titanium oxide and a sheath containing 0.3% by weight of titanium oxide, and has a core / sheath weight ratio of 1/1, which is a polyester core / sheath composite fiber (75d / 36f).
  • the inner layer is unprocessed yarn of polyester W-type irregular cross-section fiber (75dZ30f) containing 0.3% by weight of titanium oxide ⁇ 3; the back layer is 0.3 weight of titanium oxide Polyester W type irregular cross-section fiber (75 d / 30 f) containing 5% by weight is knitted on a double sided knitting machine with a 28GG double knitting machine using yarn R false-twisted under processing condition 2.
  • Example 9 Thread in Example 9?
  • a double-sided tack fabric was knitted in the same manner as in Example 9 except that the amounts of titanium oxide, materials of Q, and R, the material, the cross-sectional shape, and the number of filaments were changed, and evaluated through Dyeing Method 1. Table 2 summarizes the results.
  • the knitted fabric obtained in Example 10 had a very small discoloration upon wetting and became a ⁇ cloth.
  • Example 11 Is the knitted fabric obtained in 1 a fabric with very little discoloration when wet? OK.
  • Thread in Example 9 Except for changing the amount of titanium oxide for Q, R, the thread processing method, the number of filaments, and the cross-sectional shape, the double-sided tacked fabric was knitted in the same manner as in Example 9, and the same as in Example 1. Table 2 summarizes the evaluation results.
  • the knitted fabric obtained in Comparative Example 9 was a fabric in which discoloration when wet was very noticeable.
  • Polyester core / sheath composite fiber (75d / 36f) consisting of a core containing 8% by weight of titanium oxide and a sheath containing 0.1% by weight of titanium oxide, and having a core / sheath weight ratio of 1Z1. ) Contains unprocessed yarn P as front, polyurethane fiber (40 dZ3f) containing no titanium oxide as backing, and 0.1% by weight of titanium oxide.
  • Polyester W type irregular cross section fiber (75 d / 30 f) Raw yarn Q is placed on a middle raft, and a 28GG tricot knitting machine is used to knit a 2-way tricot knitted fabric. Passed through Staining Method 2.
  • Example 12 A two-way tricot was knitted in the same manner as in Example 10 except that the amount of titanium oxide, the amount of titanium oxide, the number of filaments, and the cross-sectional shape were changed, and the evaluation results were summarized in Table 2. Shown. Further, these fabrics were sewn with a thread so that the yarn Q was on the skin side. The product of the titanium oxide content and the weft density of the core of the yarn P was 8.4 in Comparative Example 11 and 56 in Comparative Example 12, indicating that the texture was firm and the drapeability and fit were not good. However, it was not possible to obtain comfortable wearing.
  • Polyester core-sheath type consisting of a core part containing 8% by weight of titanium oxide and a sheath part containing 0.3% by weight of titanium oxide, with a core-to-sheath weight ratio of 1/1.
  • a yarn Q obtained by false twisting a polyester W-shaped irregular cross-section fiber (75dZ30f) containing 1% by weight of titanium oxide under processing condition 2 the yarn?
  • the yarns were arranged so that Q became a staggered grid, and a two-course knitted fabric knitted in two courses with a mixing ratio of 1: 1 was knitted and passed through dyeing method 2.
  • Figure 4 shows the knitting plan of this knitted fabric.
  • Example 13 The yarn in Example 13?
  • the knitted 2-course knitted fabric was knitted in the same manner as in Example 13 except that the amount of titanium oxide, the number of filaments, and the number of cross-sections were changed, and the evaluation results were summarized in Table 3. .
  • This knitted fabric became a fabric with very little discoloration when wet.
  • Example 13 The yarn in Example 13?
  • the knitted 2-course knitted fabric was knitted in the same manner as in Example 13 except that the amount of titanium oxide, the number of filaments, and the cross-sectional shape of Q were changed, and the evaluation results are shown in Table 3.
  • This knitted fabric became a fabric in which discoloration when wet was conspicuous.
  • Polyester core-sheath type composite fiber (75d / 36f) yarn consisting of a core containing 10% by weight of titanium oxide and a sheath containing 0.3% by weight of titanium oxide and having a core-to-sheath weight ratio of 1/1.
  • Polyester W-type irregular cross section fiber (50d Z30f) Yarn Q was processed under processing condition 5, and yarn P was used as the outer layer and yarn Q was used as the core layer A double-layered yarn was obtained. Image analysis of the surface of this composite yarn revealed that the yarn P was 66% and the yarn Q was 34%.
  • a knitted fabric was prepared with a 28GG single knitting machine and passed through the dyeing method 2.
  • Cloth data (basis weight, image analysis result of yarn surface, color difference ⁇ value, sensory value of discoloration) and yarn data (yarn processing method for P and Q, XY value, titanium oxide content) It is shown in Table 5.
  • a knitted fabric was knitted and evaluated in the same manner as in Example 15 except that the amounts of titanium oxide, the number of filaments, the yarn processing method, and the cross-sectional shape of the yarns P and Q in Example 15 were changed. Table 5 summarizes the results.
  • the knitted fabrics obtained in Examples 16 to 17 were fabrics with very little discoloration when wet.
  • a knitted fabric is knitted in the same manner as in Example 15 except that the amounts of titanium oxide, the number of filaments, the material, the yarn processing method, and the cross-sectional shape of the yarns P and Q in Example 15 are changed.
  • Table 5 summarizes the results evaluated through Staining Method 1.
  • the knitted fabric obtained in Example 18 was a fabric with very little discoloration when wet.
  • the yarn in Example 15 The knitted fabric was knitted in the same manner as in Example 15 except that the amount of titanium oxide, the amount of titanium oxide, the yarn processing method, and the number of filaments were changed, and the evaluation results were summarized in Table 5. .
  • the knitted fabric became a fabric in which discoloration when wet was conspicuous.
  • Polyester core-sheath type composite fiber (75d / 36f) yarn consisting of a core containing 8% by weight of titanium oxide and a sheath containing 0.3% by weight of titanium oxide and having a core-to-sheath weight ratio of 1/1.
  • the processing conditions of yarn P and polyester W containing 1% by weight of titanium oxide W-shaped irregular cross-section fiber (75d / 30f) yarn Q To obtain a single-layer structured yarn. Image analysis of the surface of this composite yarn showed that yarn P was 52% and Q was 48%.
  • a knitted fabric was prepared using a 28GG single knitting machine and passed through Dyeing Method 2. This knitted fabric became a fabric in which discoloration when wet was not noticeable.
  • Cloth data (basis weight, image analysis result of yarn surface, color difference ⁇ value, discoloration sensory value), and yarn data (P, Q yarn processing method, XY value, titanium oxide content) The results are shown in Table 4.
  • Tensile knitted fabric was knitted and evaluated in the same manner as in Example 19, except that the amount of yarn, titanium oxide in Q, cross-sectional shape, number of filaments, and yarn combining method in Example 19 were changed. The results are shown in Table 3. This knitted fabric became a fabric in which discoloration when wet was conspicuous.
  • the surface layer consists of a core containing 8% by weight of titanium oxide and a sheath containing 0.05% by weight of titanium oxide, and has a core-to-sheath weight ratio of 1: 1. 36 i), using Mitsubishi Heavy Industries LS-2, spindle speed 250,000 rpm, twist number Z-3200T / M, first night temperature 190 ° C, second heater one temperature Yarn with a crimp elongation rate of 20% by false twisting at 180 ° C and a relaxation rate of 12%, and an intermediate layer of a polyester W-shaped irregular cross-section fiber containing 0.1% by weight of titanium oxide.
  • the surface layer consists of a core containing 8% by weight of titanium oxide and a sheath containing 0.05% by weight of titanium oxide.
  • Polyester core-sheath composite fiber (75d Z36f ), Using Mitsubishi Heavy Industries LS-2, spindle rotation speed 250,000 rpm, twist number Z-3200T / M, first heater temperature 190 ° C, second A yarn with a crimp elongation of 20% by false twisting at a heater temperature of 180 ° C and a relaxation rate of 12%?
  • Two polyester W-shaped cross-section fibers (75 d / 30 f) containing 0.1% by weight of titanium oxide in the back layer are aligned, and the spindle speed is 250,000 rpm and the twist number is Z-3200T / M.
  • Example 21 was a fabric with very little discoloration when wet.
  • the water absorption value of the yarn for the backing layer was 2.5 cm, and the water diffusivity value was 13. lcm.
  • Difficult case 15 140 66 75/36; ⁇ Ester round 10 0.3 1.5 7.3 50/30 Ester W 1 3.6 3.7 5 3.6 ⁇
  • Example 16 138 74 75/36; 23 ⁇ 4 Ester round 8 0.1 1.5 7.3 50/30 Ester W 0.3 2.3 4.3 4 4 ⁇ Difficult case 17 142 68 75/36 Ester round 2 2.0 4.5 50/72 Ester round 0.1 2.0 5.8 8 4.8 ⁇ Difficult case 18 144 75 75/36 Ester round 2.5 2.0 4.5 50/30 Cupra round 1.3 2.3 10.5 4 3 ⁇ Example 13 140 65 75/15 Ester round 0 0.9 3.9 50/24 Ester round 0.1 1.5 6.7 8 13.2 X
  • the white pigment-containing fiber was found to be 70%. %, And water-absorptive fibers accounted for 30%.
  • this yarn was placed on the back layer of water-absorbent diffusible fiber (125 d) on the back layer of the double weave, the white pigment-containing fiber occupied 70% of the fabric surface and the water-absorbent diffusive fiber occupied 30%. It will be.
  • the composite fabric of the present invention is a discoloration-preventing fabric that does not easily discolor even when a part thereof comes into contact with water and gets wet, and thus is suitable as a fabric material for clothing.
  • the discoloration prevention performance of the composite fabric of the present invention is remarkable in a dyed product, particularly in a light-colored to medium-colored dyed fabric, and there are many opportunities to be exposed to water such as sweat and rainwater.
  • Trousers, trousers, long pants, etc. Provide improved knitting and woven materials for the manufacture of textiles.

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Abstract

L'invention concerne un vêtement empêchant la décoloration et capable de réduire au minimum la décoloration temporaire du vêtement due au contact avec la pluie ou la transpiration. Ce vêtement est fait à partir d'un tissu composite, tricoté ou tissé avec un fil contenant un pigment blanc et un fil de fibre absorbant et diffusant l'humidité, constitué d'une fibre à âme/gaine; cette fibre comprend un fil de fibre synthétique ayant une teneur en pigment blanc comprise entre 1 % et 6 % en poids et/ou une âme ayant une teneur en pigment blanc comprise entre 3 % et 15 % en poids ainsi qu'une gaine ayant une teneur en pigment blanc inférieure ou égale à 2 % en poids. Le vêtement composite est formé à partir d'un tissu tricoté ou tissé qui possède une structure dans laquelle au moins 40 % de la surface supérieure comprend des fibres comportant un pigment blanc, ce qui permet d'empêcher la décoloration. Le fil absorbant et diffusant l'eau que l'on utilise comprend un fil de fibre à coupe transversale modifiée qui possède une importante action de diffusion de l'eau. Le vêtement empêchant la décoloration peut être utilisé comme matière première pour fabriquer des vêtements à base de tissu tricoté ou tissé, colorés dans une gamme claire ou intermédiaire.
PCT/JP1998/001962 1998-04-28 1998-04-28 Vetement composite WO1999055944A1 (fr)

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PCT/JP1998/001962 WO1999055944A1 (fr) 1998-04-28 1998-04-28 Vetement composite

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Application Number Priority Date Filing Date Title
PCT/JP1998/001962 WO1999055944A1 (fr) 1998-04-28 1998-04-28 Vetement composite

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WO1999055944A1 true WO1999055944A1 (fr) 1999-11-04

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PCT/JP1998/001962 WO1999055944A1 (fr) 1998-04-28 1998-04-28 Vetement composite

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163078A (en) * 1976-06-10 1979-07-31 Bayer Aktiengesellschaft Hydrophilic bi-component threads
JPS55158331A (en) * 1979-05-25 1980-12-09 Toray Ind Inc Composite fiber having improved abrasion characteritic
JPS626933A (ja) * 1985-07-02 1987-01-13 ユニチカ株式会社 偏在吸水性布帛
JPH0544160A (ja) * 1991-07-30 1993-02-23 Kanebo Ltd 紫外線透過防止加工布帛
JPH0593343A (ja) * 1991-09-30 1993-04-16 Kuraray Co Ltd 紫外線遮蔽性に優れた布帛
JPH09256224A (ja) * 1996-03-22 1997-09-30 Teijin Ltd 吸湿性の改善された複合繊維、それよりなる混繊糸並びに布帛
JPH09273045A (ja) * 1996-02-09 1997-10-21 Asahi Chem Ind Co Ltd 多層構造を有する布帛
JPH09273085A (ja) * 1996-02-09 1997-10-21 Asahi Chem Ind Co Ltd 多層布帛

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163078A (en) * 1976-06-10 1979-07-31 Bayer Aktiengesellschaft Hydrophilic bi-component threads
JPS55158331A (en) * 1979-05-25 1980-12-09 Toray Ind Inc Composite fiber having improved abrasion characteritic
JPS626933A (ja) * 1985-07-02 1987-01-13 ユニチカ株式会社 偏在吸水性布帛
JPH0544160A (ja) * 1991-07-30 1993-02-23 Kanebo Ltd 紫外線透過防止加工布帛
JPH0593343A (ja) * 1991-09-30 1993-04-16 Kuraray Co Ltd 紫外線遮蔽性に優れた布帛
JPH09273045A (ja) * 1996-02-09 1997-10-21 Asahi Chem Ind Co Ltd 多層構造を有する布帛
JPH09273085A (ja) * 1996-02-09 1997-10-21 Asahi Chem Ind Co Ltd 多層布帛
JPH09256224A (ja) * 1996-03-22 1997-09-30 Teijin Ltd 吸湿性の改善された複合繊維、それよりなる混繊糸並びに布帛

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