WO2023017802A1 - Dyed textile hook-and-loop fastener and method for dyeing textile hook-and-loop fastener - Google Patents

Dyed textile hook-and-loop fastener and method for dyeing textile hook-and-loop fastener Download PDF

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Publication number
WO2023017802A1
WO2023017802A1 PCT/JP2022/030236 JP2022030236W WO2023017802A1 WO 2023017802 A1 WO2023017802 A1 WO 2023017802A1 JP 2022030236 W JP2022030236 W JP 2022030236W WO 2023017802 A1 WO2023017802 A1 WO 2023017802A1
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WIPO (PCT)
Prior art keywords
hook
loop
engaging element
fabric
dyed
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PCT/JP2022/030236
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French (fr)
Japanese (ja)
Inventor
隆寛 山内
佳克 藤澤
卓 相良
和正 廣垣
Original Assignee
クラレファスニング株式会社
国立大学法人福井大学
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Application filed by クラレファスニング株式会社, 国立大学法人福井大学 filed Critical クラレファスニング株式会社
Priority to CN202280055047.0A priority Critical patent/CN117794418A/en
Publication of WO2023017802A1 publication Critical patent/WO2023017802A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric

Definitions

  • the present invention relates to high breaking elongation and dark color (black) dyed textile hook-and-loop fasteners, more specifically, high breaking elongation and dark color (black) dyeing obtained by supercritical CO2 dyeing of textile hook-and-loop fasteners. woven fabric hook-and-loop fastener.
  • the water-based dyeing that is currently used to dye fabric hook-and-loop fasteners in a dark color (black) requires a high dyeing temperature of 130-135°C and a long dyeing time of 120 minutes (keeping time of 60 minutes).
  • the threads constituting the woven fabric hook-and-loop fastener become hard (the degree of crystallinity of the threads increases), and there is a problem that the repeated peeling durability (retention rate) of the dyed woven fabric hook-and-loop fastener is lowered.
  • Patent Literature 1 discloses a polyester fabric hook-and-loop fastener dyed with a disperse dye. It is described that this fabric hook-and-loop fastener is dyed by a “normal method” using a disperse dye or the like under dyeing conditions of a temperature of about 100 to 150° C. and a dyeing time of 10 minutes to 10 hours. It is described in Examples that dyeing was performed at 130° C. for 1 hour. Dyeing of polyester fiber products by "ordinary method” using disperse dyes is dyeing in an aqueous medium, and the dyeing employed in the above examples is in an aqueous medium, as is clear from the dyeing conditions. is the staining.
  • Patent Document 2 describes a method of dyeing textile products using disperse dyeable fibers using supercritical CO 2 as a medium.
  • Patent documents 3-6 describe a method for dyeing textiles using supercritical CO 2 as a medium
  • the diffusion rate of the dye in the fiber is rate-limiting, so it is necessary to dye under the above-mentioned high-temperature, long-time conditions.
  • a carrier agent surfactant, solvent
  • Patent Documents 2-6 do not describe dyeing textile hook-and-loop fasteners by supercritical CO 2 dyeing. In addition, no consideration is given to the above-mentioned problems in dyeing the fabric hook-and-loop fastener by water-based dyeing.
  • the present inventors have made intensive studies to solve the problems in water-based dyeing of textile hook-and - loop fasteners with disperse dyes. It was found that a deep color can be obtained by dyeing a fabric hook-and-loop fastener using. In addition, using supercritical CO2 dyeing to dye the woven hook-and-loop fastener can avoid significantly increasing the crystallinity of the fibers for the engaging elements that make up the woven hook-and-loop fastener, and the fibers for the engaging elements after dyeing can be avoided.
  • the present invention provides the following dyed fabric hook-and-loop fastener and a method for dyeing the fabric hook-and-loop fastener.
  • the engagement element is a loop engagement element, a hook engagement element or both;
  • the hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
  • the loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
  • the warp is made of polyethylene terephthalate-based polyester,
  • the thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
  • the thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
  • the weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
  • the base is made of polyethylene terephthalate-based polyester made of warp and wef
  • the engagement element is a loop engagement element, a hook engagement element or both;
  • the hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
  • the loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
  • the warp is made of polyethylene terephthalate-based polyester,
  • the thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
  • the thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
  • the weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
  • Supercritical CO2 dyeing is performed at a dyeing temperature that is about 15°C lower and a dyeing time that is about 30 minutes shorter than water-based dyeing. Even if dyed under such mild conditions, the supercritical CO 2 dyed fabric hook-and-loop fastener of the present invention is dyed by supplying the dye to the inside of the yarn, so the sheath component (heat-sealable component) ), and the core component is also dyed in a darker color (black). Therefore, the dyed fabric hook-and-loop fastener of the present invention causes less color fading on the back surface at high temperatures than water-dyed dyed fabric hook-and-loop fasteners.
  • the surface (the surface where the engaging elements are present) loses less color at high temperatures than water-dyed dyed fabric hook-and-loop fasteners.
  • the dyeing temperature is low and the dyeing time is short, the heat effect on the threads constituting the woven surface fastener is alleviated, so that the crystallinity of the dyed threads is lower than in the case of water-based dyeing.
  • the hardness of the yarn is moderated, the breaking strength of the yarn is lowered, and the breaking elongation is improved. Therefore, the loop engaging elements are less damaged than water-based dyed fabric hook-and-loop fasteners. Since the engaging element can easily enter and the loop engaging element can also move freely, one hook engaging element can grip more filaments in the loop engaging element, so the tensile shear strength is improved. , peel strength and repeated peel durability (retention rate) are improved.
  • the dyed fabric hook-and-loop fastener of the present invention is obtained by dyeing a fabric hook-and-loop fastener with a disperse dye in a supercritical CO2 medium.
  • Supercritical CO 2 dyeing is carried out using a known dyeing apparatus, for example, which has a pressure vessel set with 3 beam-type dyeing vessels (tubes) and a CO 2 storage tank. Stirring is internal circulation type, and a circulation pump is set in each dyeing tank.
  • the beam length is about 2 m, and the dyeing tank length is about 9 m.
  • the beam is provided with at least one 3 mm wide by 3 mm long through hole in an area of 200 mm wide by 800 mm long.
  • Supercritical CO2 circulates through the through-holes of the beam.
  • There are two circulation methods for supercritical CO 2 one-way circulation from inside to outside of the beam and two-way circulation from inside to outside and from outside to inside. The circulation method is switched according to the state of the fabric.
  • a beam wrapped with a fabric hook-and-loop fastener is put into a dyeing tank, and supercritical CO 2 in which a disperse dye is dissolved (the concentration of the disperse dye is usually 10 ⁇ 6 to 0.2 mol/L) is flowed through the beam.
  • supercritical CO2 and disperse dye penetrate the fabric hook-and-loop fastener by circulating in and out of the beam through the through holes.
  • the disperse dye is carried inside the fibers of the woven surface fastener by supercritical CO 2 , and the threads of the woven surface fastener are dyed to obtain the dyed woven surface fastener of the present invention.
  • the supercritical CO2 dyeing device is a device that can dye fabric hook-and-loop fasteners in a single color and evenly without spots by consuming only disperse dyes while reusing CO2 .
  • Disperse dyes used for supercritical CO2 dyeing include benzeneazo (monoazo and disazo), heterocyclic azo (thiazolazo, benzothiazolazo, pyridoneazo, pyrazoloneazo, thiophenazo, etc.), anthraquinone, condensed (quinophthalone, styryl, coumarin, etc.) can be used.
  • the critical temperature of CO 2 is 31 ° C and the critical pressure is 7.38 MPa
  • supercritical CO 2 can be obtained by making the temperature above the critical temperature and the pressure above the critical pressure.
  • the dyeing temperature is preferably 110 to 130°C, more preferably 115 to 130°C, even more preferably 115 to 125°C, since sufficient dyeability can be obtained.
  • the dyeing pressure is preferably 20-30 MPa.
  • Dyeing time is preferably 10 to 50 minutes.
  • Dyeing is completed in a short time, so it is particularly preferable to keep the temperature of 120°C and the pressure of 25 MPa for 30 minutes.
  • Crystallinity As mentioned above, supercritical CO2 dyeing is performed under milder conditions (lower temperature, shorter time) than water-based dyeing. Therefore, in the present invention, the woven surface fastener is subjected to less heat history, and the yarn in the woven surface fastener after dyeing exhibits a lower degree of crystallinity than in the case of water-based dyeing.
  • the crystallinity of the hook engaging elements of the dyed hook woven surface fastener is preferably 62-72%, more preferably 65-72%, and the crystallinity of the loop engaging elements of the dyed loop woven surface fastener is preferably 75-87%, more preferably 78-82%. A method for measuring the degree of crystallinity will be described later.
  • the yarns in the dyed fabric hook-and-loop fasteners of the present invention exhibit less crystallinity than when water-based dyed. Therefore, the hardness of the engaging element is lowered, the breaking strength is lowered, and the elongation at break and the breaking length are increased as compared with the case of water-based dyeing. Having such tensile properties reduces damage to the monofilaments in the loop engaging element and makes it easier for the hook engaging element to grip multiple monofilaments. As a result, the dyed fabric hook-and-loop fastener has a high engagement strength.
  • the breaking elongation of the hook engaging elements of the dyed hook woven surface fastener is preferably 27-41%.
  • the breaking elongation of the loop engaging elements of the dyed loop fabric hook-and-loop fastener is preferably 35-45%.
  • the breaking strength of the hook engaging element of the dyed hook woven fabric surface fastener is preferably 4.29 to 4.47 cN/dtex, more preferably 4.35 to 4.47 cN/dtex.
  • the breaking strength of the composite element is preferably 2.01-2.07 cN/dtex, more preferably 2.03-2.07 cN/dtex. Methods for measuring elongation at break and strength at break will be described later.
  • the dyed fabric hook-and-loop fastener is dyed in a darker color, and the core and sheath components of the weft are also dyed.
  • the disperse dye penetrates into the interior of the core component and dyes the interior of the core component.
  • the disperse dye penetrates into the interior of the hook engaging element, and in a portion excluding the range of 65.0 ⁇ 10.0% from the center, that is, in the cross section of the hook engaging element, it is preferably radial from the surface toward the center. Up to 25.0% of the dye is dyed, more preferably up to 45.0% of the radius from the surface to the center.
  • the transmittance of the sheath component is 70% or less, and the dyeing is uniform.
  • the transmittance is preferably 70% or less, more preferably 50% or less. Methods for measuring dyeability and transmittance will be described later.
  • the dyed fabric hook-and-loop fastener dyed with supercritical CO 2 is subjected to less heat history, so compared to water-based dyeing, the degree of crystallinity of the threads that make up the fabric hook-and-loop fastener , low breaking strength, large breaking elongation and breaking length. If the degree of crystallinity of the hook engaging element and the loop engaging element is low, the hardness of the hook engaging element and the loop engaging element is lowered, making it easier for the hook engaging element to grip the loop engaging element. As a result, tensile shear strength (shear strength) and peel strength (peel strength) are improved as compared with water-based dyeing.
  • the dyed fabric hook-and-loop fastener of the present invention preferably has an initial tensile shear strength of 4.9 to 11.5 N/cm 2 and an initial peel strength of 0.77 to 1.31 N/cm. "Initial" means that the tensile shear strength and peel strength were measured for the first time after manufacture. Even if the dyed fabric hook-and-loop fastener of the present invention is repeatedly engaged and peeled off, the decrease in tensile shear strength and peel strength is less than that in the case of water-based dyeing.
  • the tensile shear strength of the dyed fabric hook-and-loop fastener of the present invention after 5,000 engagement/peel cycles is preferably 4.0 to 11.0 N/cm 2 , and after 5,000 engagement/peel cycles.
  • the peel strength of is preferably 0.55 to 1.15 N/cm.
  • the sheath component (fused part) and the core component of the weft are dyed, but also the loop engaging element is dyed, and the disperse dye is dyed inside the hook engaging element, so that the dyed hook fabric
  • the surface of the hook-and-loop fastener and the dyed loop fabric hook-and-loop fastener (the surface where the engaging elements are present) has little color loss at high temperatures, and the surface has excellent sublimation fastness at 160°C or higher, preferably 160 to 200°C. A method for measuring fastness to sublimation will be described later.
  • the woven surface fasteners (hook woven surface fastener, loop woven surface fastener, hook/loop mixed woven surface fastener) used in the present invention are described below, but the woven surface fasteners used in the present invention are limited to them. isn't it.
  • Hook Woven Surface Fastener A large number, preferably 30 to 120 pieces/cm 2 of hook engaging elements made of monofilaments are present on one surface of the base fabric of the hook woven surface fastener used in the present invention.
  • the hook engaging element is obtained by weaving a monofilament thread into a base fabric in a loop shape, applying heat to fix the shape of the loop, and cutting one leg of the loop.
  • the base fabric is preferably a fabric woven from warp, weft and monofilament yarns for the hook engaging elements.
  • Both the warp and weft are multifilament yarns, and the wefts have heat-sealing properties, monofilament threads for the hook engaging elements are woven into the fabric parallel to the warp threads,
  • the hook engaging element is formed of a loop formed by a monofilament yarn for the hook engaging element straddling a plurality of warps, and the base of the hook engaging element is fixed to the base fabric by fusion with the weft.
  • the heat-sealability means the property of softening by heating. More specifically, it means that heat-fusible fibers are softened when heated above a certain temperature and fused with fibers that are in close contact with the fibers.
  • the warp is substantially made of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) because the surface of the base fabric does not wrinkle due to heat, water absorption, or moisture absorption, and because it improves the heat-sealing property of the weft.
  • Structured multifilament yarns are preferred. More preferred are multifilament yarns formed from polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer).
  • the melting point of polyethylene terephthalate-based polyester and polyethylene terephthalate homopolymer is preferably 250 to 260°C.
  • the polyethylene terephthalate-based polyester described above and below is a polyester mainly composed of ethylene terephthalate units, and is a polyester obtained mainly by a condensation reaction from terephthalic acid and ethylene glycol, and optionally terephthalic acid and ethylene glycol. A small amount of polymerization units other than the above may be added.
  • polymerized units examples include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid and sebacic acid; propylene glycol and 1,4-butane; Diols such as diols; oxycarboxylic acids such as hydroxybenzoic acid and lactic acid; and monocarboxylic acids such as benzoic acid.
  • aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid
  • aliphatic dicarboxylic acids such as adipic acid and sebacic acid
  • propylene glycol and 1,4-butane Diols such as diols
  • oxycarboxylic acids such as hydroxybenzoic acid and lactic acid
  • monocarboxylic acids such as be
  • the monofilaments forming the warp must be made of polyethylene terephthalate-based polyester that does not melt at the heat treatment temperature described below.
  • the melting point of the polyethylene terephthalate-based polyester forming the warp is preferably 250 to 260°C.
  • the multifilament yarn used as the warp consists of 20 to 54 monofilaments and has a total decitex of 100 to 300 decitex.
  • a multifilament yarn having a total decitex of 150 to 250 decitex consisting of 24 to 48 filaments is particularly preferred.
  • the weft yarn is preferably a heat-sealable multifilament yarn.
  • a suitable example of the heat-fusible multifilament yarn is a multifilament yarn in which core-sheath-type heat-fusible monofilaments having a sheath component as a heat-fusible component are bundled.
  • the weft yarn is a heat-fusible multifilament yarn
  • a polyurethane or acrylic back coat resin to the back of the hook fabric hook-and-loop fastener base fabric to prevent the monofilament thread for the engaging element from being pulled out of the base fabric.
  • the back surface of the base fabric is not hardened with a back coat resin, the flexibility and air permeability of the hook fabric hook-and-loop fastener are not impaired.
  • the problem of deterioration of the dyeability of the hook fabric hook-and-loop fastener due to the presence of the back coat resin layer does not occur.
  • the sheath component melts at the heat treatment temperature
  • the base of the monofilament yarn for the hook engaging element can be firmly fixed to the base fabric.
  • a preferred example is a multifilament yarn in which a plurality of core-sheath type monofilaments are bundled and made of an adhesive polyester-based resin, the core component of which is made of a polyester-based resin that does not melt at the heat treatment temperature.
  • polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol%) of a copolymer component such as isophthalic acid or adipic acid is copolymerized.
  • a core-sheath type monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a greatly lowered melting point or softening point is exemplified.
  • the melting point or softening point of the sheath component is 100-200° C., and preferably 20-150° C.
  • the cross-sectional shape of the core-sheath type heat-fusible fiber may be a concentric core-sheath, an eccentric core-sheath, a single core-sheath, or a multi-core-sheath.
  • the multifilament yarns constituting the weft yarns are heat-sealable multifilament yarns, because the monofilament yarns for the hook engaging elements are firmly fixed to the base fabric.
  • the multifilament yarn constituting the weft yarn does not have a core-sheath cross-sectional shape, but is a filament yarn in which the entire cross section is formed of a heat-fusible polymer, the melted and re-solidified heat-fusible polymer is brittle. It becomes easy to break, and when sewn, the base fabric becomes easy to tear from the sewing thread portion.
  • the heat-fusible multifilament yarn preferably contains a core component that is not heat-fusible, and preferably has a core-sheath cross-sectional shape.
  • the weight ratio of the core component to the sheath component is preferably 50:50 to 80:20, more preferably 55:45 to 75:25.
  • the weft yarn is preferably a multifilament yarn composed of 10 to 72 heat-fusible monofilaments and having a total decitex of 80 to 300 decitex, and particularly a multifilament yarn composed of 18 to 36 heat-fusible monofilaments having a total decitex of 90 to 90 decitex. Multifilament yarns that are 200 decitex are preferred.
  • the resin forming the monofilament thread for the hook engaging element is preferably polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) or polybutylene terephthalate-based polyester, and more preferably polyethylene terephthalate-based polyester (recycled polyethylene terephthalate-based polyester). ), more preferably polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer).
  • the details of the polyethylene terephthalate-based polyester are as described above.
  • Polybutylene terephthalate-based polyester is a polyester mainly composed of butylene terephthalate units, and is a polyester obtained mainly by a condensation reaction of terephthalic acid and 1,4-butanediol. A small amount of polymerization units other than butanediol may be added.
  • polymer units examples include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid and sebacic acid; Diol; hydroxybenzoic acid, oxycarboxylic acid such as lactic acid; monocarboxylic acid such as benzoic acid, and the like.
  • the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester may be added with a small amount of a polymer such as a polyester-based elastomer or polytrimethylene terephthalate, for example, 0.2 to 8% by mass.
  • the melting point of polyethylene terephthalate-based polyester is preferably 250 to 260°C
  • the melting point of polybutylene terephthalate-based polyester is preferably 220 to 230°C.
  • the thickness of the monofilament thread for the hook engaging element is preferably 0.10 to 0.23 mm in diameter, more preferably 0.14 to 0.20 mm in diameter, in terms of achieving both strong engagement and soft touch feeling.
  • a fabric for a hook fabric surface fastener is woven from the warp, weft, and monofilament threads for hook engaging elements described above.
  • the weave structure of the woven fabric is preferably a plain weave in which the monofilament yarn for the hook engaging element is used as a part of the warp. It is preferable that the monofilament yarn for the hook engaging element, while existing in parallel with the warp, rises from the surface of the base fabric in the middle of the weave, straddling a plurality of warps to form the loop for the hook engaging element.
  • the warp weave density after heat treatment is preferably 50 to 90 threads/cm, and the weft density after heat treatment is preferably 15 to 25 threads/cm.
  • the weight ratio of the weft yarn is preferably 10 to 45% with respect to the total weight of the hook engaging element yarn, warp yarn and weft yarn constituting the hook woven surface fastener.
  • the number of hook engaging element monofilament threads to be driven is preferably 3 to 6 per 20 warp threads (including hook engaging element monofilament threads). More preferably, the ratio is one monofilament for the hook engaging element to five warps (including the monofilament yarn for the hook engaging element). It is preferable that the monofilament yarns for the hook engaging elements are driven evenly with respect to the warp yarns. Therefore, it is preferred that the hook engaging element monofilament yarns are present on both sides of the four warp yarns.
  • the monofilament yarn for the hook engaging element is woven into the woven fabric base fabric every four warps in parallel with the warp yarns, floats up and down on the five weft yarns, floats on the weft yarns, straddles the three warp yarns and one weft yarn, and engages with the hook. It is preferable to form a loop for the element because it satisfies both the strength of engagement and the durability against peeling.
  • the looped monofilament then floats and sinks on five wefts, floats on the weft, forms a loop across three warps and one weft, and sinks under the warp and weft in a repeated weaving method.
  • the fabric for hook fabric hook-and-loop fastener thus obtained is then heat-treated to melt the sheath component of the core-sheath type heat-fusible multifilament yarn constituting the weft.
  • the heat treatment temperature is preferably 150 to 220°C, more preferably 185 to 210°C, at which the sheath component of the heat-fusible multifilament yarn is melted or softened, but the hook engaging element loop, warp, and core component are not melted. be. Furthermore, since the shape of the hook engaging element loop is fixed by this heat treatment, the hook shape can be maintained even if one leg of the loop is cut off.
  • one leg of the hook engaging element loop is cut to obtain the hook engaging element. Amputation of one leg is usually performed with clippers or the like. Cutting one leg is to cut the point slightly shifted from the top of the loop to one leg side, that is, when the height from the base fabric surface to the top of the loop is set to 1, the height from the base fabric surface Cutting the loop at a point near the top of 2/3 or more and slightly deviating from the top is to prevent fibrillation due to frequent engagement and peeling of the hook engaging element. preferable.
  • the density of the hook engaging elements on the surface of the hook woven surface fastener thus obtained is preferably 25 to 125 pieces/cm 2 based on the portion of the base fabric where the hook engaging elements are present. Also, the height of the hook engaging element is preferably 1.0 to 2.5 mm from the surface of the base fabric.
  • Loop woven surface fastener A plurality of loop engaging elements, preferably 30 to 120 pieces/cm 2 , are present on one surface of the base fabric of the loop woven surface fastener used in the present invention.
  • the base fabric is preferably a fabric woven from warp yarns, weft yarns and loop engaging element yarns.
  • the warp, weft, and yarn for the loop engaging element are all multifilament yarns, the weft has heat-sealability, and the yarn for the loop engaging element is woven into the fabric in parallel with the warp.
  • the loop engaging element is formed by the yarn for the loop engaging element straddling one weft without straddling the warp, and the base of the loop engaging element is fixed to the base fabric by fusion with the weft. is particularly preferred.
  • the warp is substantially made of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) because the surface of the base fabric does not wrinkle due to heat, water absorption, or moisture absorption, and because it improves the heat-sealing property of the weft.
  • Structured multifilament yarns are preferred. More preferred are multifilament yarns formed from polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer). The details of the polyethylene terephthalate-based polyester are as described above.
  • the multifilament yarn used as the warp consists of 20 to 54 monofilaments and has a total decitex of 100 to 300 decitex.
  • a multifilament yarn having a total decitex of 150 to 250 decitex consisting of 24 to 48 filaments is particularly preferred.
  • the weft yarn is preferably a heat-sealable multifilament yarn.
  • a suitable example of the heat-fusible multifilament yarn is a multifilament yarn in which core-sheath-type heat-fusible monofilaments having a sheath component as a heat-fusible component are bundled.
  • the weft yarn is a heat-fusible multifilament yarn
  • a polyurethane or acrylic back coat resin to the back of the loop fabric hook-and-loop fastener base fabric to prevent the thread for the loop engaging element from being pulled out of the base fabric.
  • the back surface of the base fabric is not hardened with the back coat resin, the flexibility and air permeability of the loop fabric hook-and-loop fastener are not impaired.
  • the sheath component melts at the heat treatment temperature and the base of the multifilament yarn for the loop engaging element can be firmly fixed to the base fabric.
  • a suitable example is a multifilament yarn in which a plurality of core-sheath type monofilaments made of a fusible polyester-based resin and whose core component is made of a polyester-based resin that does not melt under heat treatment conditions are bundled together.
  • the core-sheath type heat-fusible multifilament yarn described above is made of a heat-fusible polyester resin whose sheath component melts at the heat treatment temperature to firmly fix the base of the monofilament yarn for the hook engaging element to the base fabric.
  • a preferred example is a multifilament yarn in which a plurality of core-sheath type monofilaments are bundled and the core component is made of a polyester resin that does not melt at the heat treatment temperature.
  • polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol%) of a copolymer component such as isophthalic acid or adipic acid is copolymerized.
  • a core-sheath type polyester monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a significantly lowered melting point or softening point is exemplified.
  • the melting point or softening point of the sheath component is 100 to 200° C., and preferably 20 to 150° C.
  • the cross-sectional shape of the core-sheath type heat-fusible fiber may be a concentric core-sheath, an eccentric core-sheath, a single core-sheath, or a multi-core-sheath.
  • the heat-fusible monofilament yarn preferably contains a component that is not heat-fusible, and more preferably has a core-sheath cross-sectional shape.
  • the weight ratio of the core component to the sheath component is preferably 20:80-80:20, more preferably 75:25-55:45.
  • the weft yarn is preferably a multifilament yarn composed of 10 to 72 heat-fusible monofilaments and having a total decitex of 80 to 300 decitex, and in particular, a multifilament yarn composed of 18 to 36 heat-fusible monofilaments having a total decitex of 100 to 100 decitex.
  • a multifilament yarn that is 240 decitex is preferred.
  • a multifilament yarn in which 6 to 12, preferably 6 to 9 monofilaments of 32 to 45 dtex are bundled is preferable as the yarn for the loop engaging element.
  • the resin forming the multifilament thread for the loop engaging element is preferably polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester, more preferably polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester). The details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
  • a woven fabric for a loop woven surface fastener is woven from the warp, weft, and multifilament yarn for the loop engaging element described above.
  • a plain weave using the multifilament yarn for the loop engaging element as a part of the warp is preferable.
  • the multifilament yarn for the loop engaging element while existing in parallel with the warp, rises from the surface of the base fabric in the middle, straddles one to several wefts without straddling the warp, and then sinks under the weft to form a loop. preferably formed.
  • the warp weave density after heat treatment is preferably 50 to 90 threads/cm, and the weft density after heat treatment is preferably 15 to 25 threads/cm.
  • the weight ratio of the weft yarn is preferably 10 to 45% with respect to the total weight of the loop engaging element yarn, the warp yarn and the weft yarn constituting the loop woven surface fastener.
  • the number of the multifilament yarns for the loop engaging elements to be driven is preferably 3 to 6 per 20 warp yarns (including the multifilament yarns for the loop engaging elements). More preferably, there is one loop engaging element multifilament yarn for five warp yarns (including the loop engaging element multifilament yarn). It is preferable that the yarns for the loop engaging elements are driven evenly with respect to the warp yarns. Therefore, it is preferred that the loop engaging element multifilament yarns are present on both sides of the four warp yarns.
  • the loop engaging elements are arranged in rows in the warp direction (MD direction), and a plurality of such rows exist in parallel in the weft direction (CD direction).
  • MD direction warp direction
  • CD direction weft direction
  • the weft over which the loop engaging element in one row is straddled is different from the weft over which the loop engaging element in the next row is straddled, thereby preventing concentration of peeling force on a specific weft.
  • the peel durability is improved, which is preferable.
  • the yarn for the loop engaging element is woven in parallel to the warp for every four warps. Forming a loop is preferable because it satisfies both engagement strength and peeling durability.
  • the thus-obtained loop fabric surface fastener fabric is then heat treated to melt the sheath component of the core-sheath type heat-fusible multifilament yarn that constitutes the weft yarn.
  • the heat treatment temperature is preferably 150 to 220° C., more preferably 185 to 185° C., which is a temperature at which the sheath component of the heat-fusible multifilament yarn is melted or softened, but the loop engaging element loop, warp and core component are not melted. 210°C.
  • the loops naturally twist due to the heat during the heat treatment, and the loop surface intersects the warp direction.
  • the yarn tends to be twisted so that the loop surface intersects the warp direction.
  • the yarn for the loop engaging element forms a loop by straddling one weft yarn without straddling the warp yarn, it is easy to twist and cause the loop plane to intersect the warp direction.
  • the loop engaging element When the loop surface intersects the warp direction, uniform engagement with the hook engaging elements is likely to occur. Furthermore, by stroking the surface of the loop engaging element with a cloth or the like, the loop engaging element can be easily divided into individual monofilaments without being cut (easily separated).
  • the density of the loop engaging elements in the loop fabric hook-and-loop fastener is preferably 25 to 125 pieces/cm 2 based on the portion of the base fabric where the loop engaging elements are present. Moreover, the height of the loop engaging element is preferably 1.5 to 3.5 mm from the surface of the base fabric.
  • Hook/Loop Mixed Type Woven Hook-and-Loop Hook/Loop Mixed-Type Woven Hook-and-Loop Fastener (hereinafter sometimes simply referred to as "mixed-type Woven Hook-and-Loop Fastener”) has hook engaging elements and loop engaging elements on the same surface of the base fabric. It is a woven hook-and-loop fastener that exists in The hook engaging elements of the hook/loop mixed type woven surface fastener (hereinafter sometimes simply referred to as “mixed type woven surface fastener”) have so-called hook shape retention, which means that the hook shape does not stretch with a light force. is required, and thick synthetic monofilaments are used for this purpose.
  • a monofilament formed from polybutylene terephthalate-based polyester or polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester), which is particularly excellent in hook shape retention, is used.
  • the details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
  • the thickness of the monofilament thread for the hook engaging element is preferably 0.10 to 0.25 mm in diameter because the hook engaging element is easily formed, and more preferably 0.12 to 0.22 mm in diameter. This thickness is slightly smaller than the thickness of the hook engaging elements of conventional general woven surface fasteners, but this thinness provides the hook and loop mixed type woven surface fastener with flexibility.
  • the height of the hook engaging element is preferably 1.5-3.0 mm, more preferably 1.8-2.5 mm.
  • the density of the hook engaging elements is preferably 15-50 pieces/cm 2 , more preferably 20-40 pieces/cm 2 .
  • the loop engaging element is a multifilament consisting of monofilaments formed from polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester.
  • the details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
  • the multifilament yarn for the loop engaging element is preferably a multifilament yarn consisting of 5 to 9 monofilaments and having a total decitex of 150 to 350 decitex.
  • the number of monofilaments is small.
  • the number of monofilaments is slightly less than 10 to 24 monofilaments of the multifilament forming the loop engaging element generally used. More preferably, it is a multifilament consisting of 6 to 8 monofilaments and having a total decitex of 230 to 330 decitex.
  • the height of the loop engaging element is preferably 1.6-4.0 mm, more preferably 2.0-3.3 mm.
  • the height of the hook engaging element is 1.5 to 3.0 mm
  • the height of the loop engaging element is 1.6 to 4.0 mm
  • the loop is larger than that of the hook engaging element because a soft touch feeling can be obtained.
  • the engagement element is preferably 0.1 to 1.0 mm higher
  • the height of the hook engagement element is 1.8 to 2.5 mm
  • the height of the loop engagement element is 2.0 to 3.3 mm
  • it is more preferable that the loop engaging element is 0.2 to 0.8 mm higher than the hook engaging element.
  • the density of the loop engaging elements is preferably 15-50 pieces/cm 2 , more preferably 20-40 pieces/cm 2 . Further, 100 ⁇ (number of loop engaging elements)/(number of loop engaging elements+number of hook engaging elements) is preferably 30-70, more preferably 45-55.
  • Both the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are inserted into the base fabric parallel to the warp yarns.
  • the monofilament yarn for the hook engaging element floats on the base fabric after floating and sinking several wefts, for example five wefts, and straddles several warps, for example 3 to 4 warps and several wefts, for example 1 to 2 wefts.
  • a loop is formed in which the loop surface intersects the warp direction. In the case of the loop engaging element, it is preferable to form the loop so that the loop surface is substantially parallel to the warp direction without straddling the warp, since the hook engaging element is easily caught by the loop engaging element.
  • the formed hook engaging element loops and loop engaging element loops are heat treated to fix the shape of the respective loops.
  • the heat-fusible fibers (weft) are fused to the roots of the loop engaging elements and the loops for the hook engaging elements, and the loop engaging elements and the loops for the hook engaging elements are fixed to the base fabric.
  • the heat treatment temperature is a temperature at which the sheath component of the heat-fusible fiber melts, but the warp yarn, the loop engaging element, the loop for the hook-engaging element, and the core component of the heat-fusible fiber do not melt, and is preferably 150 to 250. °C, more preferably 185 to 220°C.
  • the hook engaging element is obtained by cutting one loop leg of the hook engaging element loop.
  • a cutting device having one movable cutting blade that reciprocates between two fixed blades.
  • the portion through which the loop engaging element passes is not provided with a movable cutting blade. Since the hook engaging element loop is formed across the warp yarns as described above, only one leg of the loop can be easily cut. In order not to cut adjacent loop engaging elements, it is preferable to provide at least two rows of hook engaging element loops in the warp direction.
  • Multifilament yarns of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester), which has excellent heat resistance, are preferable for the warp yarns forming the base fabric.
  • Multifilament yarns of terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer) are more preferred.
  • the warp multifilament is preferably a multifilament consisting of 12 to 96 monofilaments and having a total decitex of 75 to 250 decitex, more preferably a multifilament consisting of 24 to 48 monofilaments and having a total decitex of 100 to 170 decitex. preferable.
  • the warp multifilament yarn is preferably woven into the base fabric so that the warp weave density after heat treatment is 60 to 90 yarns/cm.
  • the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are woven into the base fabric parallel to the warp yarns as described above.
  • the total number of hook-engaging-element monofilament yarns and loop-engaging-element multifilament yarns is 20 warps (including hook-engaging-element monofilament yarns and loop-engaging-element multifilament yarns). 3 to 6 are preferred.
  • the weft yarn forming the base fabric is heat-sealed under the heat treatment conditions described above, and the roots of the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element can be firmly fixed to the base fabric.
  • It is preferably a multifilament yarn.
  • polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol %) of a copolymer component such as isophthalic acid or adipic acid is copolymerized.
  • a core-sheath type polyester monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a significantly lowered melting point or softening point is exemplified.
  • the melting point or softening point of the sheath component is 100 to 200° C., and is preferably 20 to 150° C. lower than the melting points of the core component, warp yarn, monofilament yarn for hook engaging element and multifilament yarn for loop engaging element.
  • the heat-fusible monofilament yarn preferably contains a resin component that is not heat-fusible, and more preferably has a sheath-core cross-sectional shape.
  • the weight ratio of the core component to the sheath component is preferably 20:80 to 80:20.
  • the heat-fusible filament is heat-sealed and the heat-fusible filament itself shrinks to form the hook engaging element and the loop engaging element.
  • the base of the loop engaging element is tightened from both sides.
  • the heat-fusible filament undergoes large heat shrinkage under heat treatment conditions.
  • the dry heat shrinkage of the heat-fusible filament when heated at 200° C. for 1 minute is preferably 8 to 20%, more preferably 11 to 18%.
  • the multifilament for the weft is preferably a multifilament composed of 12 to 72 monofilaments and having a total decitex of 100 to 300 decitex, and more preferably a multifilament composed of 24 to 48 monofilaments and having a total decitex of 150 to 250 decitex. preferable.
  • the weft multifilament yarn is preferably woven into the base fabric so that the weaving density after heat treatment is 15 to 25 threads/cm.
  • the weight ratio of the weft yarn is preferably 15 to 40% with respect to the total weight of the monofilament for the hook engaging element, the multifilament for the loop engaging element, the warp and the weft.
  • a plain weave in which the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are used as part of the warp is preferable.
  • the hook engaging element yarns are woven in parallel with the warp yarns, then stand up from the surface of the base fabric, jump over one to four warp yarns while forming loops, and enter between the warp yarns.
  • the yarns for the loop engaging elements are woven in parallel with the warp yarns, then stand up from the surface of the base fabric, enter between the warp yarns without straddling the warp yarns, and form loops parallel to the warp yarn direction.
  • Such a weave is preferred because one leg of the hook engaging element loop can be cut without damaging the loop engaging element loop.
  • the dyed fabric hook-and-loop fastener of the present invention can be used for applications where conventional fabric hook-and-loop fasteners are used.
  • Warp Multifilament yarn made of polyethylene terephthalate with a melting point of 260°C Number of filaments: 30 Total decitex: 167 dtex Number of twists: 602 turns/m
  • Weft yarn multifilament yarn composed of core-sheath type composite filaments
  • Core component Polyethylene terephthalate with a melting point of 260°C
  • Sheath component Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C
  • Sheath component 70:30 (mass ratio) Number of filaments: 24 Total decitex: 99 dtex
  • Thread for hook engaging element Monofilament thread made of polyethylene terephthalate with a melting point of 260°C Diameter: 0.18 mm Production of Hook Woven Surface Fastener Using the warp, weft, and monofilament yarn for the hook engaging element, a plain weave fabric for hook woven surface fastener was obtained. The fabric was woven so that the warp weave density after the heat treatment was 52 threads/cm (including the monofilament threads for hook engaging elements) and the weft thread weave density was 18 threads/cm. One monofilament thread for the hook engaging element was driven in parallel with the warp threads at a rate of one per four warp threads.
  • the monofilament yarn for the hook engaging element floats and sinks on five wefts, floats on the wefts, and straddles one weft and three warps to form a loop.
  • the loop-formed monofilament yarn for the hook engaging element was woven so that it floated on five wefts, floated on the wefts, straddled one weft and three warps to form a loop, and then returned between the warps.
  • the obtained fabric for hook fabric hook-and-loop fastener was heated at 205° C. for 1 minute, which is a temperature at which only the sheath component of the weft yarn is heat-melted and the warp yarn, the monofilament yarn for the hook-like engaging element and the core component of the weft yarn are not heat-melted. heat treated. As a result, the sheath component was melted, and the neighboring yarn was fused to the core component of the weft.
  • One leg of the hook engaging element loop was then cut at a position 4/5 from below the height of the hook engaging element loop to form the hook engaging element.
  • the density of the hook engaging elements of the obtained hook fabric hook-and-loop fastener was 48 pieces/cm 2 , and the height of the hook engaging elements from the surface of the base fabric was 1.85 mm.
  • Production Example 2 Loop Woven Hook-and-Loop Fastener The following yarn was used as the yarn for forming the loop woven hook-and-loop fastener.
  • Warp Multifilament yarn made of polyethylene terephthalate with a melting point of 260°C Number of filaments: 36 Total decitex: 167 dtex Number of twists: 602 turns/m
  • Core component Polyethylene terephthalate with a melting point of 260°C
  • Sheath component Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C
  • Sheath component 70:30 (mass ratio ) Number of filaments: 24 Total decitex: 120dtex
  • Multifilament yarn for loop engaging element Multifilament yarn made of polybutylene terephthalate blended with 5% by mass of polytrimethylene terephthalate Melting point: 220°C Number of filaments: 7 Total decitex: 265dtex
  • loop Woven Surface Fastener Using the warp yarn, weft yarn and multifilament yarn for the loop engaging element, a plain weave fabric for loop woven surface fastener was obtained. The fabric was woven so that the warp weave density after the heat treatment was 55/cm and the weft weave density was 22/cm. A multifilament yarn for the loop engaging element was driven in parallel to the warp yarns without straddling the warp yarns at a rate of one per four warp yarns. After that, the multifilament yarn for the loop engaging element floats and sinks on the five wefts, floats on the base fabric, and forms a loop by straddling one weft without straddling the warp.
  • Loops were arranged in rows in the warp direction on the surface of the obtained loop fabric surface fastener fabric, and a plurality of such rows existed in parallel in the weft direction. Also, the weft straddled by the loop existing in one row was the weft positioned midway in the warp direction of the two wefts straddled by the two loops in the adjacent row. Also, the loop surfaces of most of the loop engaging elements were twisted in the warp direction.
  • the obtained fabric for loop fabric hook-and-loop fastener was heated at 200° C. for 1 hour at a temperature at which only the sheath component of the weft yarn melted, and the warp yarn, the multifilament yarn for the loop engaging element, and the core component of the weft yarn did not melt. heat treated for a minute. As a result, the sheath component was melted, and the neighboring yarn was fused to the core component of the weft.
  • the loop engaging element density was 44 pieces/cm 2 , and the height of the loop-shaped engaging elements from the base fabric surface was 2.40 mm.
  • Production Example 3 Hook woven surface fastener and loop woven surface fastener using recycled materials A hook woven surface fastener and a loop woven surface fastener were produced in the same manner as in Production Examples 1 and 2, except that threads made of the following recycled materials were used. bottom.
  • Core component Recycled polyethylene terephthalate with a melting point of 260°C
  • Sheath component Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C
  • Sheath component 70:30 (mass ratio) Number of filaments: 24 Total decitex: 99 dtex
  • Thread for hook engaging element Monofilament thread made of recycled polyethylene terephthalate with a melting point of 260°C
  • Core component Recycled polyethylene terephthalate with a melting point of 260°C
  • Sheath component Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C
  • Sheath component 70:30 (mass ratio) Number of filaments: 24 Total decitex: 120dtex Multifilament yarn for loop engaging element Multifilament yarn made of polybutylene terephthalate blended with 5% by mass of polytrimethylene terephthalate Melting point: 220°C Number of filaments: 7 Total decitex: 265dtex
  • Example 1 Each of the hook woven surface fastener and the loop woven surface fastener obtained in Production Examples 1 and 2 was dyed in a deep color (black) with a disperse dye using the beam-type supercritical CO 2 dyeing apparatus described above.
  • a disperse dye a black dye obtained by mixing the plastic dye "KP PLAST (trade name)" series manufactured by Kiwa Kagaku Kogyo Co., Ltd. at the following ratio was used.
  • KP Plast Orange HG CI Solvent Orange 60
  • KP Plast Violet R CI Solvent Violet 31
  • KP Plast Blue G CI Solvent Blue 78
  • a beam wrapped with a fabric hook-and-loop fastener was put into a dyeing tank (tube). 2.
  • the temperature of the liquefied CO2 was raised to 120 °C and the pressure to 25 MPa to supercritical CO2 , and the supercritical CO2 was circulated.
  • the circulation method was one-way circulation from the inside of the beam to the outside of the beam through the through holes.
  • Supercritical CO2 was circulated in the dye tank provided in the circulation path, the dye was dissolved in the supercritical CO2 , and the dye was supplied to the dyeing bath. 5. After reaching a temperature of 120° C. and a pressure of 25 MPa, the temperature was maintained for 30 minutes. 6.
  • Example 2 The hook woven surface fastener and loop woven surface fastener using the recycled material obtained in Production Example 3 were each dyed in the same manner as in Example 1 to obtain a dyed hook woven surface fastener and a dyed loop woven surface fastener.
  • Example 3 In “2.” and “5.” in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 110 ° C., and the dyed hook woven fabric hook-and-loop fastener and the dyed loop woven fabric hook-and-loop fastener were produced. Obtained.
  • Example 4 In “2.” and “5.” in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 130 ° C., and the dyed hook woven fabric hook-and-loop fastener and the dyed loop woven fabric hook-and-loop fastener were produced. Obtained.
  • Comparative example 2 In “2.” and “5.” of the outline of the dyeing method, the temperature was changed from 120 ° C. to 100 ° C., and "7.” was changed to the following 7-1.
  • a dyed hook woven fabric surface fastener and a dyed loop woven fabric surface fastener were obtained by performing the same operation as in Example 1 except as follows. 7-1. After transferring the spent supercritical CO 2 , the pressure is returned to atmospheric pressure and the dry dyed fabric hook-and-loop fastener is removed from the dyeing tank.
  • Comparative example 3 In “2.” and “5.” in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 140 ° C., and the dyed hook woven surface fastener and the dyed loop woven surface fastener were manufactured. Obtained.
  • Comparative example 1 A dyed hook fabric hook-and-loop fastener and a dyed loop dyed black in the same manner as in Example 1 except that the hook fabric hook-and-loop fastener and the loop fabric hook-and-loop fastener obtained in Production Examples 1 and 2 were dyed in a water system (high temperature and high pressure cheese dyeing). A woven hook-and-loop fastener was obtained. A conventional cheese dyeing machine was used. A cheese dyeing machine has a cylindrical dyeing tank and a cylindrical carrier that is loaded into it. The carrier has several levels of partitions in the height direction. Innumerable holes are drilled in the partition plate so that the staining solution can circulate sufficiently. A roll of fabric hook-and-loop fastener is placed on this partition plate.
  • a carrier laminated with a number of partition plates on which rolls of fabric hook-and-loop fasteners are placed is placed in a dyeing tank, and a dyeing solution is circulated from the top to the bottom or from the bottom to the top of the partition plate via a heater and a circulation pump, Dyeing woven hook-and-loop fasteners.
  • An outline of cheese staining is shown below. 1. Room temperature water was stored in a dyeing bath, and dyeing aids (dispersant, leveling agent, etc.) were added and circulated for 10 minutes. 2. Several rolls of woven hook-and-loop fastener were laminated onto the carrier dividers. 3. The carrier was introduced into the dyeing bath. 4.
  • Crystallinity Approximately 3 mg of warp yarn, weft yarn, hook engaging element, and loop engaging element were collected from each of the dyed hook woven surface fastener and the dyed loop woven surface fastener, and a DSC curve was obtained by a differential scanning calorimeter (DSC). By analyzing this DSC curve, analytical data such as heat quantity, melting point, crystallization temperature, glass transition temperature, etc. when endothermic or exothermic heat was generated in the sample were obtained. The crystallinity was calculated based on the obtained analytical data. In the table below, the measurements are the average of three measurements.
  • the engagement measurement jig was replaced with a test thread measurement jig. Fix the test thread (hook engaging element or loop engaging element) collected from the dyed hook fabric hook-and-loop fastener and the dyed loop fabric hook-and-loop fastener to the upper and lower chucks (chuck interval: 10 cm), start the measurement, and break the test thread
  • the strength, breaking elongation, elastic modulus and breaking length were determined.
  • the measurements in Table 2 are the average of 10 measurements.
  • the breaking strength of the hook engaging elements and loop engaging elements obtained from the dyed fabric hook-and-loop fastener of the present invention was lower than in the case of water-based dyeing.
  • the elongation at break and the length at break were larger than those in the case of water-based dyeing.
  • the spectral transmittance was measured in a wide wavelength range from the ultraviolet region to the near-infrared region by UV-visible spectroscopy based on JIS K 0115:2020.
  • a spectral transmittance measuring device JASCO Corporation "MSV-5200 DGK" (measurement method: transmission measurement, wavelength range 200 to 2700 nm) was used.
  • the focus was focused on the darkest portion of the heat-bonded portion of the weft, and the measurement was performed at a size of 10 ⁇ m.
  • the spectral transmittance was measured for 10 different wefts, and the average value was taken as the value of the spectral transmittance.
  • Tensile shear strength (shear strength) It was measured according to the tensile shear strength specified in 7.4.1 of JIS L3416:2000.
  • a dyed hook woven hook-and-loop fastener and a dyed loop woven hook-and-loop fastener were each cut to 25 mm wide by 100 mm long. With the hook hook-and-loop fastener facing down and the loop hook-and-loop fastener facing up, each hook-and-loop fastener was placed so that a portion 50 mm from the end of each hook-and-loop fastener was left with a gripping portion (non-engaging portion).
  • a sample was prepared by two reciprocating rolling compactions with a 2 kg roller.
  • One gripping portion (within 30 mm in length) of the sample was set in the upper chuck of a desktop precision universal testing machine, and the other gripping portion (within 30 mm in length) was set in the lower chuck, and the strength was measured.
  • peel strength It was measured according to the peel strength specified in 7.4.2 of JIS L3416:2000. Dyed hook woven hook-and-loop fasteners and dyed loop woven hook-and-loop fasteners were cut to 25 mm wide by 150 mm long. The dyed hook fabric hook-and-loop fastener was placed on top and the dyed loop fabric hook-and-loop fastener was placed on the bottom so that both ends were aligned. Then, a sample was prepared by two reciprocating rolling compactions with a 2 kg roller. A portion within 30 mm from the edge of the sample was peeled off, and the peeled portion was set in a chuck of a desktop precision universal testing machine to measure the peel strength.
  • the supercritical CO2 dyeing has superior tensile shear strength and peel strength after the initial and 5,000 engagement/peel cycles compared to the water-based dyeing.
  • the constant temperature chamber was set to a predetermined temperature (160 to 200° C.), and 30 minutes after reaching the set temperature, the sample was placed in the constant temperature chamber and left for 24 hours. After standing, the front and back of the sample are measured with a spectrophotometer using the sample before heat treatment as a reference, and the density of the surface of the dyed fabric hook-and-loop fastener (Table 6) and the color difference ⁇ E between the front and back surfaces (Table 7) are obtained. rice field. The measured densities in Table 6 and the measured ⁇ E in Table 7 are each an average of three measurements.

Abstract

This dyed textile hook-and-loop fastener is obtained through supercritical CO2 dyeing of a textile hook-and-loop fastener, is dyed in a deep color, and exhibits a high rupture elongation due to having less thermal history in a dyeing step.

Description

[規則37.2に基づきISAが決定した発明の名称]　染色織物面ファスナーおよび織物面ファスナーの染色法[Title of invention determined by ISA based on Rule 37.2] Dyed fabric hook-and-loop fastener and dyeing method for fabric hook-and-loop fastener
　本発明は高破断伸度かつ濃色（黒）に染色された織物面ファスナー、より詳しくは織物面ファスナーを超臨界ＣＯ２染色することにより得られる高破断伸度かつ濃色（黒）に染色された織物面ファスナーに関する。 The present invention relates to high breaking elongation and dark color (black) dyed textile hook-and-loop fasteners, more specifically, high breaking elongation and dark color (black) dyeing obtained by supercritical CO2 dyeing of textile hook-and-loop fasteners. woven fabric hook-and-loop fastener.
　織物面ファスナーを濃色（黒）に染色するために現在行われている水系染色では、１３０～１３５℃の高い染色温度、１２０分（キープ時間６０分）の長い染色時間を要している。この結果、織物面ファスナーを構成する糸が硬くなり（糸の結晶化度が高くなり）、染色織物面ファスナーの繰り返し剥離耐久性（保持率）が低下する問題がある。これは染色フック織物面ファスナーの係合素子が硬くなるため、係合と剥離の繰り返しにより染色ループ織物面ファスナーのループ係合素子が傷付いたり切れたりする程度が増加し、係合できるループ係合素子の数が減少するためである。染色織物面ファスナーの繰り返し剥離耐久性（保持率）を高い状態に維持するためには、染色工程での温度を低下させ、時間を短縮し、熱履歴を緩和させることで、糸、特にループ係合素子の結晶化度を低くする必要がある。 The water-based dyeing that is currently used to dye fabric hook-and-loop fasteners in a dark color (black) requires a high dyeing temperature of 130-135°C and a long dyeing time of 120 minutes (keeping time of 60 minutes). As a result, the threads constituting the woven fabric hook-and-loop fastener become hard (the degree of crystallinity of the threads increases), and there is a problem that the repeated peeling durability (retention rate) of the dyed woven fabric hook-and-loop fastener is lowered. This is because the engaging elements of the dyed hook woven fabric hook-and-loop fastener become hard, and repeated engagement and peeling increases the extent to which the loop engaging elements of the dyed loop woven fabric hook-and-loop fastener are damaged or cut, and the loop hooks that can be engaged increase. This is because the number of integrated elements is reduced. In order to maintain the repeated peeling durability (retention rate) of dyed fabric hook-and-loop fasteners in a high state, it is necessary to lower the temperature in the dyeing process, shorten the time, and relax the heat history, thereby improving the thread, especially the loop hook. It is necessary to lower the crystallinity of the composite element.
　特許文献１は、分散染料により染色されたポリエステル製の織物面ファスナーを開示している。この織物面ファスナーは、温度１００～１５０℃程度、染色時間１０分～１０時間の染色条件で分散染料などを用いて“常法”により染色されることが記載されている。実施例では１３０℃で１時間染色したことが記載されている。ポリエステル系繊維製品の分散染料を用いた“常法”による染色とは水系媒体中での染色であり、上記実施例で採用されている染色は、染色条件からも明らかなように水系媒体中での染色である。 Patent Literature 1 discloses a polyester fabric hook-and-loop fastener dyed with a disperse dye. It is described that this fabric hook-and-loop fastener is dyed by a “normal method” using a disperse dye or the like under dyeing conditions of a temperature of about 100 to 150° C. and a dyeing time of 10 minutes to 10 hours. It is described in Examples that dyeing was performed at 130° C. for 1 hour. Dyeing of polyester fiber products by "ordinary method" using disperse dyes is dyeing in an aqueous medium, and the dyeing employed in the above examples is in an aqueous medium, as is clear from the dyeing conditions. is the staining.
　特許文献２は、分散染料可染性繊維を用いた繊維製品を、超臨界ＣＯ２を媒体として染色する方法が記載されている。 Patent Document 2 describes a method of dyeing textile products using disperse dyeable fibers using supercritical CO 2 as a medium.
　特許文献３～６は、超臨界ＣＯ２を媒体として用いる繊維製品の染色方法を記載している Patent documents 3-6 describe a method for dyeing textiles using supercritical CO 2 as a medium
日本国特許第４６９０３１５号Japanese Patent No. 4690315 特開２００２－３６３８６９号Japanese Patent Application Laid-Open No. 2002-363869 国際公開第２０１８／１５０４８０号WO2018/150480 特開２００４－３２３９８２号公報Japanese Patent Application Laid-Open No. 2004-323982 特開２０１２－１８８６６４号公報JP 2012-188664 A 国際公開第２０１２／１０５０１１号WO2012/105011
　水系染色では繊維中での染料の拡散速度が律速となるため、上記のような高温、長時間の条件で染色する必要がある。染色温度や染色時間を下げるためには、キャリアー剤（界面活性剤、溶剤）を多量に添加する必要があり、排水負荷が上がるなどの弊害がある。 In water-based dyeing, the diffusion rate of the dye in the fiber is rate-limiting, so it is necessary to dye under the above-mentioned high-temperature, long-time conditions. In order to lower the dyeing temperature and dyeing time, it is necessary to add a large amount of a carrier agent (surfactant, solvent), which has the adverse effect of increasing the wastewater load.
　特許文献１に記載の水系染色では、織物面ファスナーを分散染料により染色すると芯鞘複合繊維の芯成分が殆ど染色されず、その結果、濃色に染めることが出来ない、高温下に晒した場合の色抜けが大きいなどの問題があった。さらに、水系染色は高温、長時間の染色条件で行われるので、織物面ファスナーを構成する糸はその影響を受ける。その結果、糸の結晶化度が高くなり、糸が硬くなる。硬くなった糸、特に硬くなったフック係合素子とループ係合素子は、係合／剥離を繰り返すうちにループ係合素子が傷つき、切れて織物面ファスナーの係合強力が低下する問題があった。 In the water-based dyeing described in Patent Document 1, when the fabric hook-and-loop fastener is dyed with a disperse dye, the core component of the core-sheath composite fiber is hardly dyed, and as a result, it cannot be dyed in a dark color when exposed to high temperatures. There was a problem such as large color loss. Furthermore, water-based dyeing is performed under high temperature and long time dyeing conditions, which affects the yarns constituting the woven surface fastener. As a result, the crystallinity of the yarn increases and the yarn becomes stiff. A hardened thread, particularly a hardened hook engaging element and loop engaging element, has the problem that the loop engaging element is damaged and broken during repeated engagement/peeling, resulting in a decrease in the engaging strength of the woven surface fastener. rice field.
　特許文献２～６は、織物面ファスナーを超臨界ＣＯ２染色により染色することを記載していない。また、織物面ファスナーを水系染色により染色する際の上記した問題に関して何も検討していない。 Patent Documents 2-6 do not describe dyeing textile hook-and-loop fasteners by supercritical CO 2 dyeing. In addition, no consideration is given to the above-mentioned problems in dyeing the fabric hook-and-loop fastener by water-based dyeing.
　本発明者らは、織物面ファスナーを分散染料により水系染色する際の問題点を解決すべく鋭意検討した結果、超臨界ＣＯ２染色（例えば、染色温度１２０℃、圧力２５ＭＰａ、染色時間３０分）を用いて織物面ファスナーを染色すれば濃色に染色が出来ることを見出した。さらに、超臨界ＣＯ２染色を用いて織物面ファスナーを染色すると、織物面ファスナーを構成する係合素子用繊維の結晶化度が著しく高くなることを避けることができ、染色後の係合素子用繊維の破断伸度が顕著に大きくなり、その結果、水系染色した織物面ファスナーに比べて、染色織物面ファスナーの係合力が大幅に向上することを見出した。本発明はこれらの知見に基づく。 The present inventors have made intensive studies to solve the problems in water-based dyeing of textile hook-and - loop fasteners with disperse dyes. It was found that a deep color can be obtained by dyeing a fabric hook-and-loop fastener using. In addition, using supercritical CO2 dyeing to dye the woven hook-and-loop fastener can avoid significantly increasing the crystallinity of the fibers for the engaging elements that make up the woven hook-and-loop fastener, and the fibers for the engaging elements after dyeing can be avoided. It has been found that the breaking elongation of the fiber is remarkably increased, and as a result, the engaging force of the dyed fabric hook-and-loop fastener is greatly improved compared to the water-based dyed fabric hook-and-loop fastener. The present invention is based on these findings.
　すなわち、本発明は以下の染色織物面ファスナー及び織物面ファスナーの染色方法を提供する。 That is, the present invention provides the following dyed fabric hook-and-loop fastener and a method for dyeing the fabric hook-and-loop fastener.
１．経糸と緯糸からなる織物製基布および該基布の一方の表面から立ち上がる多数の係合素子からなり、
　前記係合素子はループ係合素子、フック係合素子またはその双方であり、
　前記フック係合素子は前記基布に経糸と平行に織り込まれたフック係合素子用糸から形成され、
　前記ループ係合素子は前記基布に経糸と平行に織り込まれたループ係合素子用糸から形成され、
　前記経糸はポリエチレンテレフタレート系ポリエステルからなり、
　前記フック係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
　前記ループ係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
　前記緯糸は、熱融着性低融点ポリエステル樹脂を鞘成分、ポリエチレンテレフタレート系ポリエステルを芯成分とする芯鞘型熱融着性繊維からなり、
　前記係合素子の根元が溶融した鞘成分に融着し、前記基布に固定されており、
　前記経糸、緯糸の鞘成分と芯成分および係合素子が分散染料により染色されており、さらに
　以下の条件（１）～（３）を満足している染色織物面ファスナー。
（１）前記芯鞘型熱融着性繊維の芯成分内部に分散染料が存在していること、
（２）前記フック係合素子の破断伸度が２７～４１％であること、
（３）前記ループ係合素子の破断伸度が３５～４５％であること。 1. Consists of a textile base fabric made of warp and weft and a large number of engaging elements rising from one surface of the base fabric,
the engagement element is a loop engagement element, a hook engagement element or both;
The hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
The loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
The warp is made of polyethylene terephthalate-based polyester,
The thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
The thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
The weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
The base of the engaging element is fused to the melted sheath component and fixed to the base fabric,
A dyed fabric hook-and-loop fastener, wherein the sheath component, the core component and the engaging element of the warp and weft are dyed with a disperse dye, and further satisfies the following conditions (1) to (3).
(1) that a disperse dye is present inside the core component of the core-sheath type heat-fusible fiber;
(2) the hook engaging element has a breaking elongation of 27 to 41%;
(3) The breaking elongation of the loop engaging element is 35 to 45%.
２．前記フック係合素子の破断伸度が２７～３８％である、前記１に記載の染色織物面ファスナー。
３．前記ループ係合素子の破断伸度が３５～４０％である、前記１又は２に記載の染色織物面ファスナー。
４．前記係合素子がフック係合素子であり、その係合素子の結晶化度が６２～７２％である前記１～３のいずれかに記載の染色織物面ファスナー。 2. 2. The dyed fabric hook-and-loop fastener according to 1 above, wherein the hook engaging element has a breaking elongation of 27 to 38%.
3. 3. The dyed fabric hook-and-loop fastener according to 1 or 2 above, wherein the breaking elongation of the loop engaging element is 35 to 40%.
4. 4. The dyed fabric hook-and-loop fastener according to any one of 1 to 3 above, wherein the engaging elements are hook engaging elements, and the degree of crystallinity of the engaging elements is 62 to 72%.
５．前記係合素子がフック係合素子であり、その係合素子の破断強度が４．２９～４．４７ｃＮ／ｄｔｅｘである前記１～４のいずれかに記載の染色織物面ファスナー。 5. 5. The dyed fabric hook-and-loop fastener according to any one of 1 to 4 above, wherein the engaging element is a hook engaging element, and the breaking strength of the engaging element is 4.29 to 4.47 cN/dtex.
６．前記係合素子がループ係合素子であり、そのループ係合素子の結晶化度が７５～８７％である前記１～３のいずれかに記載の染色織物面ファスナー。 6. 4. The dyed fabric hook-and-loop fastener according to any one of 1 to 3 above, wherein the engaging element is a loop engaging element, and the degree of crystallinity of the loop engaging element is 75 to 87%.
７．前記係合素子がループ係合素子であり、その係合素子の破断強度が２．０１～２．０７ｃＮ／ｄｔｅｘである前記１～３及び６のいずれかに記載の染色織物面ファスナー。 7. 7. The dyed fabric hook-and-loop fastener according to any one of 1 to 3 and 6 above, wherein the engaging element is a loop engaging element and the breaking strength of the engaging element is 2.01 to 2.07 cN/dtex.
８．前記芯鞘複合繊維の鞘成分（熱融着部）の透過率が７０％以下である前記１～７のいずれかに記載の染色織物面ファスナー。 8. 8. The dyed fabric hook-and-loop fastener according to any one of 1 to 7 above, wherein the transmittance of the sheath component (heat-sealed portion) of the core-sheath composite fiber is 70% or less.
９．経糸と緯糸からなる織物製基布および該基布の一方の表面から立ち上がる多数の係合素子からなり、
　前記係合素子はループ係合素子、フック係合素子またはその双方であり、
　前記フック係合素子は前記基布に経糸と平行に織り込まれたフック係合素子用糸から形成され、
　前記ループ係合素子は前記基布に経糸と平行に織り込まれたループ係合素子用糸から形成され、
　前記経糸はポリエチレンテレフタレート系ポリエステルからなり、
　前記フック係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
　前記ループ係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
　前記緯糸は、熱融着性低融点ポリエステル樹脂を鞘成分、ポリエチレンテレフタレート系ポリエステルを芯成分とする芯鞘型熱融着性繊維からなり、
　前記係合素子の根元が溶融した鞘成分に融着し、前記基布に固定されている
織物面ファスナーを超臨界ＣＯ２中で分散染料を用いて染色する織物面ファスナーの染色法。 9. Consists of a textile base fabric made of warp and weft and a large number of engaging elements rising from one surface of the base fabric,
the engagement element is a loop engagement element, a hook engagement element or both;
The hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
The loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
The warp is made of polyethylene terephthalate-based polyester,
The thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
The thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
The weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
A method of dyeing a woven fabric hook-and-loop fastener in which the base of the engaging element is fused to the melted sheath component and the fabric hook-and-loop fastener fixed to the base fabric is dyed using a disperse dye in supercritical CO2 .
　超臨界ＣＯ２染色は、水系染色と比べて、染色温度が１５℃程度低く、染色時間も３０分程度短い条件で行われる。このような温和な条件で染色しても、本発明の超臨界ＣＯ２染色された染色織物面ファスナーでは、染料が糸内部まで供給されて染着しているので、鞘成分（熱融着成分）、芯成分などもより濃色（黒）に染まっている。従って、本発明の染色織物面ファスナーは、水系染色された染色織物面ファスナーに比べて、高温下での裏面の色抜けが少ない。染料の糸内部への染着量が増加しているので、水系染色された染色織物面ファスナーに比べて、高温下での表面（係合素子が存在する面）の色抜けも少ない。
　また、染色温度が低く染色時間も短いため、織物面ファスナーを構成する糸への熱影響が緩和されるので、染色後の糸の結晶化度が水系染色した場合よりも低い。その結果、糸の硬さが和らいでおり、糸の破断強度が低下し破断伸度が向上している。従って、水系染色された染色織物面ファスナーに比べて、ループ係合素子が損傷することが少なく、また、フック係合素子、ループ係合素子が柔らかくなったために、ループ係合素子の間にフック係合素子が入りやすくなり、さらにループ係合素子も自由に動きやすくなることで１本のフック係合素子がループ係合素子中のより多くのフィラメントを掴むことができるので、引っ張りせん断強さ、剥離強さ及び繰り返し剥離耐久性（保持率）が向上する。 Supercritical CO2 dyeing is performed at a dyeing temperature that is about 15°C lower and a dyeing time that is about 30 minutes shorter than water-based dyeing. Even if dyed under such mild conditions, the supercritical CO 2 dyed fabric hook-and-loop fastener of the present invention is dyed by supplying the dye to the inside of the yarn, so the sheath component (heat-sealable component) ), and the core component is also dyed in a darker color (black). Therefore, the dyed fabric hook-and-loop fastener of the present invention causes less color fading on the back surface at high temperatures than water-dyed dyed fabric hook-and-loop fasteners. Since the amount of dyeing inside the yarn is increased, the surface (the surface where the engaging elements are present) loses less color at high temperatures than water-dyed dyed fabric hook-and-loop fasteners.
In addition, since the dyeing temperature is low and the dyeing time is short, the heat effect on the threads constituting the woven surface fastener is alleviated, so that the crystallinity of the dyed threads is lower than in the case of water-based dyeing. As a result, the hardness of the yarn is moderated, the breaking strength of the yarn is lowered, and the breaking elongation is improved. Therefore, the loop engaging elements are less damaged than water-based dyed fabric hook-and-loop fasteners. Since the engaging element can easily enter and the loop engaging element can also move freely, one hook engaging element can grip more filaments in the loop engaging element, so the tensile shear strength is improved. , peel strength and repeated peel durability (retention rate) are improved.
　本発明の染色織物面ファスナーは、織物面ファスナーを超臨界ＣＯ２媒体中で分散染料により染色することにより得られる。 The dyed fabric hook-and-loop fastener of the present invention is obtained by dyeing a fabric hook-and-loop fastener with a disperse dye in a supercritical CO2 medium.
　超臨界ＣＯ２染色は、例えば、ビーム型染色槽（チューブ）３台とＣＯ２貯蔵タンク１つがセットになっている圧力容器を有する公知の染色装置を用いて行われる。攪拌は内部循環型で、それぞれの染色槽内に循環ポンプがセットされている。ビーム長は２ｍ程度であり、染色槽長は９ｍ程度である。
　ビームには少なくとも一つ以上の３ｍｍ幅×３ｍｍ長の貫通孔が２００ｍｍ幅×８００ｍｍ長の範囲に設けられている。ビームの貫通孔を通って超臨界ＣＯ２が循環する。
　超臨界ＣＯ２の循環方法には、ビームの内側から外側への一方向循環と内側から外側と外側から内側の二方向循環の二通りがあり、布帛の状態に応じて循環方法を切り替える。
　織物面ファスナーを巻き付けたビームを染色槽内に投入し、分散染料を溶解した超臨界ＣＯ２（分散染料の濃度は通常１０－６～０．２ｍｏｌ／Ｌ）をビームに流す。超臨界ＣＯ２と分散染料は貫通孔を通ってビーム内外に循環することにより織物面ファスナーを貫通する。これにより分散染料は超臨界ＣＯ２によって織物面ファスナーの繊維内部に運ばれ、織物面ファスナーの糸が染色されて本発明の染色織物面ファスナーが得られる。
　染色後は新しい液化ＣＯ２を装置内に送り込むことで、残存分散染料が溶解している使用済みの超臨界ＣＯ２を分離装置に移送する。分離装置内では圧力を下げてＣＯ２を気化させることで、残存分散染料を分離回収する。気化したＣＯ２の約９５％が回収され、再び液化ＣＯ２にして貯蔵タンクに戻し、次のバッチに再利用される。
　使用済みの超臨界ＣＯ２を分離装置に移送した後、染色槽の圧を大気圧に戻すとともに温度を下げ、乾いた染色織物面ファスナーを染色槽から取り出す。
　超臨界ＣＯ２染色装置は、ＣＯ２を再利用しながら分散染料のみを消費することで織物面ファスナーを単一色かつ斑なく均一に染色することができる装置である。 Supercritical CO 2 dyeing is carried out using a known dyeing apparatus, for example, which has a pressure vessel set with 3 beam-type dyeing vessels (tubes) and a CO 2 storage tank. Stirring is internal circulation type, and a circulation pump is set in each dyeing tank. The beam length is about 2 m, and the dyeing tank length is about 9 m.
The beam is provided with at least one 3 mm wide by 3 mm long through hole in an area of 200 mm wide by 800 mm long. Supercritical CO2 circulates through the through-holes of the beam.
There are two circulation methods for supercritical CO 2 : one-way circulation from inside to outside of the beam and two-way circulation from inside to outside and from outside to inside. The circulation method is switched according to the state of the fabric.
A beam wrapped with a fabric hook-and-loop fastener is put into a dyeing tank, and supercritical CO 2 in which a disperse dye is dissolved (the concentration of the disperse dye is usually 10 −6 to 0.2 mol/L) is flowed through the beam. Supercritical CO2 and disperse dye penetrate the fabric hook-and-loop fastener by circulating in and out of the beam through the through holes. As a result, the disperse dye is carried inside the fibers of the woven surface fastener by supercritical CO 2 , and the threads of the woven surface fastener are dyed to obtain the dyed woven surface fastener of the present invention.
After dyeing, new liquefied CO2 is fed into the device, and used supercritical CO2 in which residual disperse dyes are dissolved is transferred to the separation device. In the separator, the pressure is lowered to evaporate the CO 2 , thereby separating and recovering the residual disperse dye. About 95% of the vaporized CO2 is recovered and reconstituted into liquefied CO2 and returned to the storage tank for reuse in the next batch.
After the spent supercritical CO 2 is transferred to the separator, the pressure in the dyeing tank is returned to atmospheric pressure and the temperature is lowered, and the dry dyed fabric hook-and-loop fastener is removed from the dyeing tank.
The supercritical CO2 dyeing device is a device that can dye fabric hook-and-loop fasteners in a single color and evenly without spots by consuming only disperse dyes while reusing CO2 .
　超臨界ＣＯ２染色に使用する分散染料は、ベンゼンアゾ系（モノアゾおよびジスアゾ）、複素環アゾ系（チアゾールアゾ、ベンゾチアゾールアゾ、ピリドンアゾ、ピラゾロンアゾ、チオフェンアゾ等）、アントラキノン系、縮合系（キノフタロン、スチリル、クマリン等）等の市販品を用いることが出来る。 Disperse dyes used for supercritical CO2 dyeing include benzeneazo (monoazo and disazo), heterocyclic azo (thiazolazo, benzothiazolazo, pyridoneazo, pyrazoloneazo, thiophenazo, etc.), anthraquinone, condensed (quinophthalone, styryl, coumarin, etc.) can be used.
　ＣＯ２の臨界温度は３１℃、臨界圧力は７．３８ＭＰａなので、臨界温度以上の温度、臨界圧力以上の圧力にすることにより超臨界ＣＯ２を得ることができる。十分な染色性が得られるので、染色温度は１１０～１３０℃が好ましく、１１５～１３０℃がより好ましく、１１５～１２５℃がさらに好ましい。染色圧力は２０～３０ＭＰａが好ましい。染色時間は１０～５０分が好ましい。 Since the critical temperature of CO 2 is 31 ° C and the critical pressure is 7.38 MPa, supercritical CO 2 can be obtained by making the temperature above the critical temperature and the pressure above the critical pressure. The dyeing temperature is preferably 110 to 130°C, more preferably 115 to 130°C, even more preferably 115 to 125°C, since sufficient dyeability can be obtained. The dyeing pressure is preferably 20-30 MPa. Dyeing time is preferably 10 to 50 minutes.
　染色が短時間で終了するので、温度１２０℃、圧力２５ＭＰａの状態を３０分キープして染色するのが特に好ましい。 Dyeing is completed in a short time, so it is particularly preferable to keep the temperature of 120°C and the pressure of 25 MPa for 30 minutes.
　上記のようにして得られる本発明の染色織物面ファスナーの特性を以下に説明する。以下の特性は実施例に記載の方法で測定した。 The characteristics of the dyed fabric hook-and-loop fastener of the present invention obtained as described above are described below. The following properties were measured by the methods described in Examples.
結晶化度
　前記したように、超臨界ＣＯ２染色は水系染色よりも温和な条件（低い温度、短い時間）で行われる。従って、本発明では織物面ファスナーが受ける熱履歴が少なく、染色後の織物面ファスナー中の糸は水系染色した場合よりも低い結晶化度を示す。
　染色フック織物面ファスナーのフック係合素子の結晶化度は、好ましくは６２～７２％、より好ましくは６５～７２％であり、染色ループ織物面ファスナーのループ係合素子の結晶化度は好ましくは７５～８７％、より好ましくは７８～８２％である。結晶化度の測定方法は後述する。 Crystallinity As mentioned above, supercritical CO2 dyeing is performed under milder conditions (lower temperature, shorter time) than water-based dyeing. Therefore, in the present invention, the woven surface fastener is subjected to less heat history, and the yarn in the woven surface fastener after dyeing exhibits a lower degree of crystallinity than in the case of water-based dyeing.
The crystallinity of the hook engaging elements of the dyed hook woven surface fastener is preferably 62-72%, more preferably 65-72%, and the crystallinity of the loop engaging elements of the dyed loop woven surface fastener is preferably 75-87%, more preferably 78-82%. A method for measuring the degree of crystallinity will be described later.
引張特性
　上記したように、本発明の染色織物面ファスナー中の糸は水系染色した場合よりも低い結晶化度を示す。そのため、水系染色した場合と比べて、係合素子の硬さが低下し、破断強度は低くなり、破断伸度と破断長は大きくなる。
　このような引張特性を有することにより、ループ係合素子中のモノフィラメントが損傷することが少なく、フック係合素子が複数のモノフィラメントを掴みやすくなる。その結果、染色織物面ファスナーは高い係合強力を有する。
　染色フック織物面ファスナーのフック係合素子の破断伸度は、好ましくは２７～４１％である。染色ループ織物面ファスナーのループ係合素子の破断伸度は、好ましくは３５～４５％である。
　染色フック織物面ファスナーのフック係合素子の破断強度は、好ましくは４．２９～４．４７ｃＮ／ｄｔｅｘ、より好ましくは４．３５～４．４７ｃＮ／ｄｔｅｘであり、染色ループ織物面ファスナーのループ係合素子の破断強度は、好ましくは２．０１～２．０７ｃＮ／ｄｔｅｘ、より好ましくは２．０３～２．０７ｃＮ／ｄｔｅｘである。
　破断伸度及び破断強度の測定方法は後述する。 Tensile Properties As noted above, the yarns in the dyed fabric hook-and-loop fasteners of the present invention exhibit less crystallinity than when water-based dyed. Therefore, the hardness of the engaging element is lowered, the breaking strength is lowered, and the elongation at break and the breaking length are increased as compared with the case of water-based dyeing.
Having such tensile properties reduces damage to the monofilaments in the loop engaging element and makes it easier for the hook engaging element to grip multiple monofilaments. As a result, the dyed fabric hook-and-loop fastener has a high engagement strength.
The breaking elongation of the hook engaging elements of the dyed hook woven surface fastener is preferably 27-41%. The breaking elongation of the loop engaging elements of the dyed loop fabric hook-and-loop fastener is preferably 35-45%.
The breaking strength of the hook engaging element of the dyed hook woven fabric surface fastener is preferably 4.29 to 4.47 cN/dtex, more preferably 4.35 to 4.47 cN/dtex. The breaking strength of the composite element is preferably 2.01-2.07 cN/dtex, more preferably 2.03-2.07 cN/dtex.
Methods for measuring elongation at break and strength at break will be described later.
染着性
　水系染色に比べ超臨界ＣＯ２染色では繊維内部まで染料を供給できる。従って、染色織物面ファスナーはより濃色に染色されており、緯糸の芯成分と鞘成分も染色されている。特に、分散染料が芯成分の内部に侵入し、芯成分の内部に染着している。
　また、分散染料はフック係合素子内部に侵入し、中心から６５．０±１０．０％の範囲を除く部分、すなわち、フック係合素子の断面において、好ましくは表面から中心に向かって半径の２５．０％までの部分、より好ましくは表面から中心に向かって半径の４５．０％までの部分に染着している。
　本発明の染色織物面ファスナーにおいて、鞘成分（熱融着部）の透過率は７０％以下であり、均一に染まっている。当該透過率は、７０％以下であることが好ましく、より好ましくは５０％以下である。
　染着性及び透過率の測定方法は後述する。 Dyeability Compared to water-based dyeing, supercritical CO2 dyeing can supply dye to the inside of the fiber. Therefore, the dyed fabric hook-and-loop fastener is dyed in a darker color, and the core and sheath components of the weft are also dyed. In particular, the disperse dye penetrates into the interior of the core component and dyes the interior of the core component.
Further, the disperse dye penetrates into the interior of the hook engaging element, and in a portion excluding the range of 65.0±10.0% from the center, that is, in the cross section of the hook engaging element, it is preferably radial from the surface toward the center. Up to 25.0% of the dye is dyed, more preferably up to 45.0% of the radius from the surface to the center.
In the dyed fabric hook-and-loop fastener of the present invention, the transmittance of the sheath component (heat-sealed portion) is 70% or less, and the dyeing is uniform. The transmittance is preferably 70% or less, more preferably 50% or less.
Methods for measuring dyeability and transmittance will be described later.
染色織物面ファスナーの係合強力
　上記したように、超臨界ＣＯ２染色した染色織物面ファスナーは受ける熱履歴が少ないので、水系染色した場合と比べて、織物面ファスナーを構成する糸の結晶化度が低く、破断強度が低く、破断伸度と破断長が大きい。フック係合素子、ループ係合素子の結晶化度が低いとフック係合素子、ループ係合素子の硬さが低下し、フック係合素子がループ係合素子を掴みやすくなる。その結果、水系染色した場合と比べて、引っ張りせん断強さ（シアー強力）と剥離強さ（ピール強力）が向上する。
　本発明の染色織物面ファスナーの初期引っ張りせん断強さは４．９～１１．５Ｎ／ｃｍ２であることが好ましく、初期剥離強さは０．７７～１．３１Ｎ／ｃｍであることが好ましい。“初期”とは製造後初めて引っ張りせん断強さと剥離強さを測定したことを意味する。
　本発明の染色織物面ファスナーは係合／剥離を繰り返しても、水系染色した場合と比べて、引っ張りせん断強さと剥離強さの低下が少ない。上記したように、水系染色した場合と比べて、結晶化度が低いのでフック係合素子とループ係合素子の硬さが低下し、係合／剥離の繰り返しによるループ係合素子中のフィラメントの損傷、切断が少なくなり、１本のフック係合素子がループ係合素子中のより多くのフィラメントを掴んでいるためと考えられる。
　本発明の染色織物面ファスナーの５，０００回係合／剥離繰り返し後の引っ張りせん断強さは４．０～１１．０Ｎ／ｃｍ２であることが好ましく、５，０００回係合／剥離繰り返し後の剥離強さは０．５５～１．１５Ｎ／ｃｍであることが好ましい。
　引っ張りせん断強さ、剥離強さ、及び５，０００回係合／剥離繰り返し後の引っ張りせん断強さと剥離強さの測定方法は後述する。 Engagement strength of dyed fabric hook-and-loop fastener As described above, the dyed fabric hook-and-loop fastener dyed with supercritical CO 2 is subjected to less heat history, so compared to water-based dyeing, the degree of crystallinity of the threads that make up the fabric hook-and-loop fastener , low breaking strength, large breaking elongation and breaking length. If the degree of crystallinity of the hook engaging element and the loop engaging element is low, the hardness of the hook engaging element and the loop engaging element is lowered, making it easier for the hook engaging element to grip the loop engaging element. As a result, tensile shear strength (shear strength) and peel strength (peel strength) are improved as compared with water-based dyeing.
The dyed fabric hook-and-loop fastener of the present invention preferably has an initial tensile shear strength of 4.9 to 11.5 N/cm 2 and an initial peel strength of 0.77 to 1.31 N/cm. "Initial" means that the tensile shear strength and peel strength were measured for the first time after manufacture.
Even if the dyed fabric hook-and-loop fastener of the present invention is repeatedly engaged and peeled off, the decrease in tensile shear strength and peel strength is less than that in the case of water-based dyeing. As described above, the degree of crystallinity is lower than in the case of water-based dyeing, so the hardness of the hook engaging element and the loop engaging element is lowered, and the filament in the loop engaging element due to repeated engagement/peeling. This is believed to be due to less damage and cuts and one hook engaging element gripping more filaments in the loop engaging element.
The tensile shear strength of the dyed fabric hook-and-loop fastener of the present invention after 5,000 engagement/peel cycles is preferably 4.0 to 11.0 N/cm 2 , and after 5,000 engagement/peel cycles. The peel strength of is preferably 0.55 to 1.15 N/cm.
Methods for measuring tensile shear strength, peel strength, and tensile shear strength and peel strength after 5,000 engagement/peel cycles are described below.
高温下での昇華堅牢度
　水系染色に比べて、超臨界ＣＯ２染色は経糸、緯糸の鞘成分（融着部分）と芯成分も染色するので、高温下に晒しても染色フック織物面ファスナーと染色ループ織物面ファスナーの裏面（係合素子が存在しない面）の高温での色抜けが少なく、裏面の１６０℃以上、好ましくは１６０～２００℃での昇華堅牢度が優れている。
　また、緯糸の鞘成分（融着部分）と芯成分が染色されるだけではなく、ループ係合素子も染色され、分散染料がフック係合素子の内部に染着しているので、染色フック織物面ファスナーと染色ループ織物面ファスナーの表面（係合素子が存在する面）の高温での色抜けが少なく、表面の１６０℃以上、好ましくは１６０～２００℃での昇華堅牢度が優れている。昇華堅牢度の測定方法は後述する。 Fastness to sublimation under high temperature Compared to water-based dyeing, supercritical CO2 dyeing also dyes the sheath component (fused part) and core component of the warp and weft, so even if it is exposed to high temperature, the dyed hook fabric hook and loop fastener The back surface of the dyed loop fabric hook-and-loop fastener (the surface on which no engaging elements are present) has little color loss at high temperatures, and the back surface has excellent sublimation fastness at 160°C or higher, preferably 160 to 200°C.
In addition, not only the sheath component (fused part) and the core component of the weft are dyed, but also the loop engaging element is dyed, and the disperse dye is dyed inside the hook engaging element, so that the dyed hook fabric The surface of the hook-and-loop fastener and the dyed loop fabric hook-and-loop fastener (the surface where the engaging elements are present) has little color loss at high temperatures, and the surface has excellent sublimation fastness at 160°C or higher, preferably 160 to 200°C. A method for measuring fastness to sublimation will be described later.
　以下、本発明で使用する織物面ファスナー（フック織物面ファスナー、ループ織物面ファスナー、フック／ループ混在型織物面ファスナー）について説明するが、本発明で使用する織物面ファスナーはそれらに限定されるものではない。 The woven surface fasteners (hook woven surface fastener, loop woven surface fastener, hook/loop mixed woven surface fastener) used in the present invention are described below, but the woven surface fasteners used in the present invention are limited to them. isn't it.
フック織物面ファスナー
　本発明で使用するフック織物面ファスナーの基布の一方の表面にはモノフィラメントからなるフック係合素子が多数、好ましくは、３０～１２０個／ｃｍ２存在している。フック係合素子は、モノフィラメント糸を基布にループ状に織込み、熱を加えてループ形状を固定し、ループの片脚を切断することにより得られる。 Hook Woven Surface Fastener A large number, preferably 30 to 120 pieces/cm 2 of hook engaging elements made of monofilaments are present on one surface of the base fabric of the hook woven surface fastener used in the present invention. The hook engaging element is obtained by weaving a monofilament thread into a base fabric in a loop shape, applying heat to fix the shape of the loop, and cutting one leg of the loop.
　基布は、経糸、緯糸およびフック係合素子用モノフィラメント糸から織られた織物が好ましい。特に好ましくは、
　経糸および緯糸がともにマルチフィラメント糸で、緯糸が熱融着性を有しており、
　フック係合素子用モノフィラメント糸が経糸に平行に織物中に織り込まれており、
　フック係合素子は、フック係合素子用モノフィラメント糸が経糸を複数本跨いで形成したループから形成され、且つ
　フック係合素子の根元が緯糸との融着により基布に固定されている。
　なお、本発明において熱融着性とは加熱によって軟化する性質のことである。より詳細には、熱融着性繊維をある温度以上に加熱すると軟化し、該繊維と密接に接触している繊維と融着することを意味する。 The base fabric is preferably a fabric woven from warp, weft and monofilament yarns for the hook engaging elements. Especially preferably
Both the warp and weft are multifilament yarns, and the wefts have heat-sealing properties,
monofilament threads for the hook engaging elements are woven into the fabric parallel to the warp threads,
The hook engaging element is formed of a loop formed by a monofilament yarn for the hook engaging element straddling a plurality of warps, and the base of the hook engaging element is fixed to the base fabric by fusion with the weft.
In the present invention, the heat-sealability means the property of softening by heating. More specifically, it means that heat-fusible fibers are softened when heated above a certain temperature and fused with fibers that are in close contact with the fibers.
　経糸は、熱、吸水または吸湿により基布面が波打たない点から、さらに緯糸の熱融着性を向上させる点から、実質的にポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）から構成されているマルチフィラメント糸が好ましい。ポリエチレンテレフタレートホモポリマー（リサイクルポリエチレンテレフタレートホモポリマーを含む）から形成されているマルチフィラメント糸がより好ましい。ポリエチレンテレフタレート系ポリエステルおよびポリエチレンテレフタレートホモポリマーの融点は２５０～２６０℃であることが好ましい。 The warp is substantially made of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) because the surface of the base fabric does not wrinkle due to heat, water absorption, or moisture absorption, and because it improves the heat-sealing property of the weft. Structured multifilament yarns are preferred. More preferred are multifilament yarns formed from polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer). The melting point of polyethylene terephthalate-based polyester and polyethylene terephthalate homopolymer is preferably 250 to 260°C.
　上記及び以下に記載するポリエチレンテレフタレート系ポリエステルとは、エチレンテレフタレート単位を主体とするポリエステルであり、主としてテレフタル酸とエチレングリコールからの縮合反応により得られるポリエステルであり、必要に応じてテレフタル酸やエチレングリコール以外の重合単位が少量付加されていても良い。このような重合単位の例としては、イソフタル酸、スルホイソフタル酸ソーダ、フタル酸、ナフタレンジカルボン酸等の芳香族ジカルボン酸；アジピン酸、セバチン酸等の脂肪族ジカルボン酸；プロピレングリコール、１，４ブタンジオール等のジオール；ヒドロキシ安息香酸、乳酸等のオキシカルボン酸；安息香酸等のモノカルボン酸等が挙げられる。更に、上記ポリエチレンテレフタレート系ポリエステルには、それ以外のポリマーが少量添加されていても良い。ポリエチレンテレフタレート系ポリエステルは、好ましくはポリエチレンテレフタレートホモポリマーである。経糸（マルチフィラメント）を形成するモノフィラメントは、後述する熱処理温度では溶融しないポリエチレンテレフタレート系ポリエステルから形成される必要がある。経糸を形成するポリエチレンテレフタレート系ポリエステルの融点は２５０～２６０℃であることが好ましい。 The polyethylene terephthalate-based polyester described above and below is a polyester mainly composed of ethylene terephthalate units, and is a polyester obtained mainly by a condensation reaction from terephthalic acid and ethylene glycol, and optionally terephthalic acid and ethylene glycol. A small amount of polymerization units other than the above may be added. Examples of such polymerized units include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid and sebacic acid; propylene glycol and 1,4-butane; Diols such as diols; oxycarboxylic acids such as hydroxybenzoic acid and lactic acid; and monocarboxylic acids such as benzoic acid. Furthermore, a small amount of other polymers may be added to the polyethylene terephthalate-based polyester. The polyethylene terephthalate-based polyester is preferably a polyethylene terephthalate homopolymer. The monofilaments forming the warp (multifilament) must be made of polyethylene terephthalate-based polyester that does not melt at the heat treatment temperature described below. The melting point of the polyethylene terephthalate-based polyester forming the warp is preferably 250 to 260°C.
　経糸として用いられるマルチフィラメント糸は２０～５４本のモノフィラメントからなり、トータルデシテックスが１００～３００デシテックスであることが好ましい。特に２４～４８本のフィラメントからなるトータルデシテックスが１５０～２５０デシテックスであるマルチフィラメント糸が好ましい。 It is preferable that the multifilament yarn used as the warp consists of 20 to 54 monofilaments and has a total decitex of 100 to 300 decitex. A multifilament yarn having a total decitex of 150 to 250 decitex consisting of 24 to 48 filaments is particularly preferred.
　緯糸は熱融着性マルチフィラメント糸であることが好ましい。熱融着性マルチフィラメント糸の好適な例として、鞘成分を熱融着成分とする芯鞘型の熱融着性モノフィラメントが集束したマルチフィラメント糸が挙げられる。 The weft yarn is preferably a heat-sealable multifilament yarn. A suitable example of the heat-fusible multifilament yarn is a multifilament yarn in which core-sheath-type heat-fusible monofilaments having a sheath component as a heat-fusible component are bundled.
　緯糸が熱融着性マルチフィラメント糸であると、フック係合素子用モノフィラメント糸を基布に強固に固定することが可能となる。従来のフック織物面ファスナーと異なり、係合素子用モノフィラメント糸が基布から引き抜かれることを防ぐためにポリウレタン系やアクリル系のバックコート樹脂をフック織物面ファスナー基布裏面に塗布する必要がなくなり、工程を簡略化することができる。さらに基布裏面がバックコート樹脂で固められていないのでフック織物面ファスナーの柔軟性や通気性が損なわれない。さらにバックコート樹脂層が存在することによるフック織物面ファスナーの染色性悪化の問題も生じない。 When the weft yarn is a heat-fusible multifilament yarn, it becomes possible to firmly fix the monofilament yarn for the hook engaging element to the base fabric. Unlike conventional hook fabric hook-and-loop fasteners, it is no longer necessary to apply a polyurethane or acrylic back coat resin to the back of the hook fabric hook-and-loop fastener base fabric to prevent the monofilament thread for the engaging element from being pulled out of the base fabric. can be simplified. Furthermore, since the back surface of the base fabric is not hardened with a back coat resin, the flexibility and air permeability of the hook fabric hook-and-loop fastener are not impaired. Furthermore, the problem of deterioration of the dyeability of the hook fabric hook-and-loop fastener due to the presence of the back coat resin layer does not occur.
　上記した芯鞘型の熱融着性マルチフィラメント糸としては、鞘成分（熱融着部）が熱処理温度で溶融してフック係合素子用モノフィラメント糸の根元を基布に強固に固定できる熱融着性ポリエステル系樹脂からなり、芯成分が熱処理温度では溶融しないポリエステル系の樹脂からなる芯鞘型モノフィラメントが複数本集束したマルチフィラメント糸が好適例として挙げられる。 As for the core-sheath type heat-fusible multifilament yarn, the sheath component (heat-fusible part) melts at the heat treatment temperature, and the base of the monofilament yarn for the hook engaging element can be firmly fixed to the base fabric. A preferred example is a multifilament yarn in which a plurality of core-sheath type monofilaments are bundled and made of an adhesive polyester-based resin, the core component of which is made of a polyester-based resin that does not melt at the heat treatment temperature.
　芯鞘型マルチフィラメントの具体例として、ポリエチレンテレフタレート（リサイクルポリエチレンテレフタレートを含む）を芯成分とし、イソフタル酸、アジピン酸等の共重合成分を多量に（例えば２０～３０モル％）共重合することにより融点または軟化点を大きく低下させた共重合ポリエチレンテレフタレート（リサイクル共重合ポリエチレンテレフタレートを含む）を鞘成分とする芯鞘型モノフィラメント糸が挙げられる。鞘成分の融点又は軟化点は１００～２００℃であり、かつ経糸、芯成分、及びフック係合素子用モノフィラメントの融点より２０～１５０℃低いことが好ましい。芯鞘型熱融着性繊維の断面形状としては、同心芯鞘であっても、偏心芯鞘であっても、あるいは一芯芯鞘であっても、多芯芯鞘であっても良い。 As a specific example of the core-sheath type multifilament, polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol%) of a copolymer component such as isophthalic acid or adipic acid is copolymerized. A core-sheath type monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a greatly lowered melting point or softening point is exemplified. The melting point or softening point of the sheath component is 100-200° C., and preferably 20-150° C. lower than the melting points of the warp yarns, the core component and the monofilaments for the hook engaging elements. The cross-sectional shape of the core-sheath type heat-fusible fiber may be a concentric core-sheath, an eccentric core-sheath, a single core-sheath, or a multi-core-sheath.
　緯糸を構成するマルチフィラメント糸の全てが上記熱融着性マルチフィラメント糸であることが、フック係合素子用モノフィラメント糸が強固に基布に固定されるので好ましい。緯糸を構成するマルチフィラメント糸が芯鞘断面形状ではなく、断面の全てが熱融着性のポリマーで形成されているフィラメント糸である場合には、溶けて再度固まった熱融着性ポリマーが脆く割れやすくなり、縫製した場合等は縫糸部分から基布が裂け易くなる。したがって、熱融着性マルチフィラメント糸は、熱融着されない芯成分を含んでいることが好ましく、芯鞘の断面形状を有していることが好ましい。芯成分と鞘成分の質量比率は５０：５０～８０：２０が好ましく、５５：４５～７５：２５がより好ましい。 It is preferable that all of the multifilament yarns constituting the weft yarns are heat-sealable multifilament yarns, because the monofilament yarns for the hook engaging elements are firmly fixed to the base fabric. In the case where the multifilament yarn constituting the weft yarn does not have a core-sheath cross-sectional shape, but is a filament yarn in which the entire cross section is formed of a heat-fusible polymer, the melted and re-solidified heat-fusible polymer is brittle. It becomes easy to break, and when sewn, the base fabric becomes easy to tear from the sewing thread portion. Therefore, the heat-fusible multifilament yarn preferably contains a core component that is not heat-fusible, and preferably has a core-sheath cross-sectional shape. The weight ratio of the core component to the sheath component is preferably 50:50 to 80:20, more preferably 55:45 to 75:25.
　緯糸としては１０～７２本の熱融着性モノフィラメント糸からなるトータルデシテックスが８０～３００デシテックスであるマルチフィラメント糸が好ましく、特に１８～３６本の熱融着性モノフィラメント糸からなるトータルデシテックスが９０～２００デシテックスであるマルチフィラメント糸が好ましい。 The weft yarn is preferably a multifilament yarn composed of 10 to 72 heat-fusible monofilaments and having a total decitex of 80 to 300 decitex, and particularly a multifilament yarn composed of 18 to 36 heat-fusible monofilaments having a total decitex of 90 to 90 decitex. Multifilament yarns that are 200 decitex are preferred.
　フック係合素子用モノフィラメント糸を形成する樹脂は、好ましくはポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）またはポリブチレンテレフタレート系ポリエステルであり、より好ましくはポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）、さらに好ましくはポリエチレンテレフタレートホモポリマー（リサイクルポリエチレンテレフタレートホモポリマーを含む）である。
　ポリエチレンテレフタレート系ポリエステルの詳細は上記したとおりである。
　ポリブチレンテレフタレート系ポリエステルとは、ブチレンテレフタレート単位を主体とするポリエステルであり、主としてテレフタル酸と１，４‐ブタンジオールの縮合反応により得られるポリエステルであり、必要に応じてテレフタル酸や１，４‐ブタンジオール以外の重合単位が少量付加されていても良い。このような重合単位の例としては、イソフタル酸、スルホイソフタル酸ソーダ、フタル酸、ナフタレンジカルボン酸等の芳香族ジカルボン酸；アジピン酸、セバチン酸等の脂肪族ジカルボン酸；エチレングリコール、プロピレングリコール等のジオール；ヒドロキシ安息香酸、乳酸等のオキシカルボン酸；安息香酸等のモノカルボン酸等が挙げられる。更に、上記ポリエチレンテレフタレート系ポリエステルやポリブチレンテレフタレート系ポリエステルには、それら以外にポリエステル系エラストマーやポリトリメチレンテレフタレート等のポリマーが少量、例えば０．２～８質量％、添加されていても良い。
　ポリエチレンテレフタレート系ポリエステルの融点は２５０～２６０℃が好ましく、ポリブチレンテレフタレート系ポリエステルの融点は２２０～２３０℃が好ましい。 The resin forming the monofilament thread for the hook engaging element is preferably polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) or polybutylene terephthalate-based polyester, and more preferably polyethylene terephthalate-based polyester (recycled polyethylene terephthalate-based polyester). ), more preferably polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer).
The details of the polyethylene terephthalate-based polyester are as described above.
Polybutylene terephthalate-based polyester is a polyester mainly composed of butylene terephthalate units, and is a polyester obtained mainly by a condensation reaction of terephthalic acid and 1,4-butanediol. A small amount of polymerization units other than butanediol may be added. Examples of such polymer units include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid and sebacic acid; Diol; hydroxybenzoic acid, oxycarboxylic acid such as lactic acid; monocarboxylic acid such as benzoic acid, and the like. Further, the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester may be added with a small amount of a polymer such as a polyester-based elastomer or polytrimethylene terephthalate, for example, 0.2 to 8% by mass.
The melting point of polyethylene terephthalate-based polyester is preferably 250 to 260°C, and the melting point of polybutylene terephthalate-based polyester is preferably 220 to 230°C.
　フック係合素子用モノフィラメント糸の太さは、直径０．１０～０．２３ｍｍが係合強力と柔軟な手触り感の両立の点で好ましく、直径０．１４～０．２０ｍｍがより好ましい。 The thickness of the monofilament thread for the hook engaging element is preferably 0.10 to 0.23 mm in diameter, more preferably 0.14 to 0.20 mm in diameter, in terms of achieving both strong engagement and soft touch feeling.
　以上述べた経糸、緯糸およびフック係合素子用モノフィラメント糸から、フック織物面ファスナー用織物を織成する。織物の織組織としては、フック係合素子用モノフィラメント糸を経糸の一部とした平織が好ましい。フック係合素子用モノフィラメント糸は、経糸と平行に存在しつつ、組織の途中で基布面から立ち上がり、経糸を複数本跨いでフック係合素子用ループを形成するのが好ましい。 A fabric for a hook fabric surface fastener is woven from the warp, weft, and monofilament threads for hook engaging elements described above. The weave structure of the woven fabric is preferably a plain weave in which the monofilament yarn for the hook engaging element is used as a part of the warp. It is preferable that the monofilament yarn for the hook engaging element, while existing in parallel with the warp, rises from the surface of the base fabric in the middle of the weave, straddling a plurality of warps to form the loop for the hook engaging element.
　経糸の織密度は、熱処理後の織密度で５０～９０本／ｃｍが、また緯糸の織密度は、熱処理後の織密度で１５～２５本／ｃｍが好ましい。緯糸の質量割合は、フック織物面ファスナーを構成するフック係合素子用糸、経糸および緯糸の合計質量に対して１０～４５％が好ましい。 The warp weave density after heat treatment is preferably 50 to 90 threads/cm, and the weft density after heat treatment is preferably 15 to 25 threads/cm. The weight ratio of the weft yarn is preferably 10 to 45% with respect to the total weight of the hook engaging element yarn, warp yarn and weft yarn constituting the hook woven surface fastener.
　フック係合素子用モノフィラメント糸の打ち込み本数は、経糸２０本（フック係合素子用モノフィラメントを含む）に対して３～６本が好ましい。より好ましくは、経糸５本（フック係合素子用モノフィラメント糸を含む）に対してフック係合素子用モノフィラメント１本の割合である。フック係合素子用モノフィラメント糸は経糸に対して偏ることなく均一に打ち込まれるのが好ましい。したがって、４本の経糸の両隣にフック係合素子用モノフィラメント糸が存在しているのが好ましい。 The number of hook engaging element monofilament threads to be driven is preferably 3 to 6 per 20 warp threads (including hook engaging element monofilament threads). More preferably, the ratio is one monofilament for the hook engaging element to five warps (including the monofilament yarn for the hook engaging element). It is preferable that the monofilament yarns for the hook engaging elements are driven evenly with respect to the warp yarns. Therefore, it is preferred that the hook engaging element monofilament yarns are present on both sides of the four warp yarns.
　フック係合素子用モノフィラメント糸は、経糸に平行に経糸４本毎に織物基布に織り込まれ、緯糸５本を浮沈した後に緯糸上に浮き上がり、経糸３本および緯糸１本を跨いでフック係合素子用ループを形成しているのが係合強力と剥離耐久性の両方を満足できることから好ましい。ループ形成したモノフィラメントは、次いで緯糸５本を浮沈した後に緯糸上に浮き上がり、経糸３本および緯糸１本を跨いでループを形成し、経糸と緯糸の下に沈むことを繰り返す織り方が好ましい。 The monofilament yarn for the hook engaging element is woven into the woven fabric base fabric every four warps in parallel with the warp yarns, floats up and down on the five weft yarns, floats on the weft yarns, straddles the three warp yarns and one weft yarn, and engages with the hook. It is preferable to form a loop for the element because it satisfies both the strength of engagement and the durability against peeling. The looped monofilament then floats and sinks on five wefts, floats on the weft, forms a loop across three warps and one weft, and sinks under the warp and weft in a repeated weaving method.
　このようにして得られたフック織物面ファスナー用織物は、次に熱処理をして緯糸を構成する芯鞘型熱融着性マルチフィラメント糸の鞘成分を溶融させる。これにより、従来のフック織物面ファスナーで行われていたバックコート処理が不要となり、バックコート用樹脂液に用いられている有機溶剤の蒸散による職場環境の悪化やバックコート樹脂液が製造装置に付着する等の問題、バックコート樹脂によりフック織物面ファスナーの柔軟性や通気性が損なわれるという問題、さらにバックコート樹脂の存在がフック織物面ファスナーの染色性を損なうという問題を防ぐことができる。 The fabric for hook fabric hook-and-loop fastener thus obtained is then heat-treated to melt the sheath component of the core-sheath type heat-fusible multifilament yarn constituting the weft. This eliminates the need for backcoating, which is required for conventional hook fabric hook-and-loop fasteners. It is possible to prevent the problem of the back coat resin impairing the flexibility and breathability of the hook woven surface fastener, and the problem of impairing the dyeability of the hook woven surface fastener due to the presence of the back coat resin.
　熱処理温度は、熱融着性マルチフィラメント糸の鞘成分が溶融または軟化するが、フック係合素子用ループ、経糸、芯成分は溶融しない１５０～２２０℃が好ましく、より好ましくは１８５～２１０℃である。さらに、この熱処理によりフック係合素子用ループの形状が固定されるので、ループの片脚が切断されてもフック形状を保つことができる。 The heat treatment temperature is preferably 150 to 220°C, more preferably 185 to 210°C, at which the sheath component of the heat-fusible multifilament yarn is melted or softened, but the hook engaging element loop, warp, and core component are not melted. be. Furthermore, since the shape of the hook engaging element loop is fixed by this heat treatment, the hook shape can be maintained even if one leg of the loop is cut off.
　このようにして得られたフック織物面ファスナー用織物の表面には、形状が固定されたフック係合素子用ループが好ましくは３０～１２０個／ｃｍ２存在する。次いで、フック係合素子用ループの片脚を切断してフック係合素子を得る。片脚の切断は、通常、バリカン等により行われる。
　片脚の切断はループの頂部から僅かに一方の脚側にずれた箇所を切断するのが、すなわち、ループの基布面から頂部までの高さを１とした場合に基布面から高さが２／３以上の頂部に近い箇所で、かつ頂部から僅かにずれている箇所でループを切断するのが、フック係合素子の頻繁な係合・剥離によるフィブリル化をより高度に防ぐ上で好ましい。 Preferably, 30 to 120 loops/cm 2 for hook engaging elements having a fixed shape are present on the surface of the fabric for the hook fabric hook-and-loop fastener thus obtained. Then, one leg of the hook engaging element loop is cut to obtain the hook engaging element. Amputation of one leg is usually performed with clippers or the like.
Cutting one leg is to cut the point slightly shifted from the top of the loop to one leg side, that is, when the height from the base fabric surface to the top of the loop is set to 1, the height from the base fabric surface Cutting the loop at a point near the top of 2/3 or more and slightly deviating from the top is to prevent fibrillation due to frequent engagement and peeling of the hook engaging element. preferable.
　このようにして得られたフック織物面ファスナーの表面上のフック係合素子の密度は、フック係合素子が存在している基布部分基準で２５～１２５個／ｃｍ２が好ましい。また、フック係合素子の高さは基布面から１．０～２．５ｍｍが好ましい。 The density of the hook engaging elements on the surface of the hook woven surface fastener thus obtained is preferably 25 to 125 pieces/cm 2 based on the portion of the base fabric where the hook engaging elements are present. Also, the height of the hook engaging element is preferably 1.0 to 2.5 mm from the surface of the base fabric.
ループ織物面ファスナー
　本発明で使用するループ織物面ファスナーの基布の一方の表面にはループ係合素子が複数、好ましくは３０～１２０個／ｃｍ２、存在している。
　基布は、経糸、緯糸およびループ係合素子用糸から織られた織物が好ましい。 Loop woven surface fastener A plurality of loop engaging elements, preferably 30 to 120 pieces/cm 2 , are present on one surface of the base fabric of the loop woven surface fastener used in the present invention.
The base fabric is preferably a fabric woven from warp yarns, weft yarns and loop engaging element yarns.
　また、経糸、緯糸およびループ係合素子用糸がともにマルチフィラメント糸であり、緯糸が熱融着性を有しており、ループ係合素子用糸が経糸に平行に織物中に織り込まれており、ループ係合素子用糸が経糸を跨ぐことなく緯糸を１本跨ぐことによりループ係合素子が形成され、且つループ係合素子の根元が緯糸との融着により基布に固定されているのが特に好ましい。 In addition, the warp, weft, and yarn for the loop engaging element are all multifilament yarns, the weft has heat-sealability, and the yarn for the loop engaging element is woven into the fabric in parallel with the warp. The loop engaging element is formed by the yarn for the loop engaging element straddling one weft without straddling the warp, and the base of the loop engaging element is fixed to the base fabric by fusion with the weft. is particularly preferred.
　経糸は、熱、吸水または吸湿により基布面が波打たない点から、さらに緯糸の熱融着性を向上させる点から、実質的にポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）から構成されているマルチフィラメント糸が好ましい。ポリエチレンテレフタレートホモポリマー（リサイクルポリエチレンテレフタレートホモポリマーを含む）から形成されているマルチフィラメント糸がより好ましい。ポリエチレンテレフタレート系ポリエステルの詳細は上記した通りである。 The warp is substantially made of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester) because the surface of the base fabric does not wrinkle due to heat, water absorption, or moisture absorption, and because it improves the heat-sealing property of the weft. Structured multifilament yarns are preferred. More preferred are multifilament yarns formed from polyethylene terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer). The details of the polyethylene terephthalate-based polyester are as described above.
　経糸として用いられるマルチフィラメント糸は２０～５４本のモノフィラメントからなり、トータルデシテックスが１００～３００デシテックスであることが好ましい。特に２４～４８本のフィラメントからなるトータルデシテックスが１５０～２５０デシテックスであるマルチフィラメント糸が好ましい。 It is preferable that the multifilament yarn used as the warp consists of 20 to 54 monofilaments and has a total decitex of 100 to 300 decitex. A multifilament yarn having a total decitex of 150 to 250 decitex consisting of 24 to 48 filaments is particularly preferred.
　緯糸は熱融着性マルチフィラメント糸であることが好ましい。熱融着性マルチフィラメント糸の好適な例として、鞘成分を熱融着成分とする芯鞘型の熱融着性モノフィラメントが集束したマルチフィラメント糸が挙げられる。 The weft yarn is preferably a heat-sealable multifilament yarn. A suitable example of the heat-fusible multifilament yarn is a multifilament yarn in which core-sheath-type heat-fusible monofilaments having a sheath component as a heat-fusible component are bundled.
　緯糸が熱融着性マルチフィラメント糸であると、ループ係合素子用糸を基布に強固に固定することが可能となる。従来のループ織物面ファスナーと異なり、ループ係合素子用糸が基布から引き抜かれることを防ぐためにポリウレタン系やアクリル系のバックコート樹脂をループ織物面ファスナー基布裏面に塗布する必要もなくなり、工程を簡略化することができる。さらに基布裏面がバックコート樹脂で固められていないのでループ織物面ファスナーの柔軟性や通気性が損なわれない。さらにバックコート樹脂層が存在することによるループ織物面ファスナーの染色性を損なうという問題を防ぐことができる。 When the weft yarn is a heat-fusible multifilament yarn, it becomes possible to firmly fix the loop engaging element yarn to the base fabric. Unlike conventional loop fabric hook-and-loop fasteners, it is no longer necessary to apply a polyurethane or acrylic back coat resin to the back of the loop fabric hook-and-loop fastener base fabric to prevent the thread for the loop engaging element from being pulled out of the base fabric. can be simplified. Furthermore, since the back surface of the base fabric is not hardened with the back coat resin, the flexibility and air permeability of the loop fabric hook-and-loop fastener are not impaired. Furthermore, it is possible to prevent the problem of impairing the dyeability of the loop fabric hook-and-loop fastener due to the presence of the back coat resin layer.
　上記した芯鞘型の熱融着性マルチフィラメント糸としては、鞘成分（熱融着部）が熱処理温度で溶融してループ係合素子用マルチフィラメント糸の根元を基布に強固に固定できる熱融着性ポリエステル系の樹脂からなり、芯成分が熱処理条件下では溶融しないポリエステル系の樹脂からなる芯鞘型モノフィラメントが複数本集束したマルチフィラメント糸が好適例として挙げられる。
　上記した芯鞘型の熱融着性マルチフィラメント糸としては、鞘成分が熱処理温度で溶融してフック係合素子用モノフィラメント糸の根元を基布に強固に固定できる熱融着性ポリエステル系樹脂からなり、芯成分が熱処理温度では溶融しないポリエステル系の樹脂からなる芯鞘型モノフィラメントが複数本集束したマルチフィラメント糸が好適例として挙げられる。 As for the core-sheath type heat-fusible multifilament yarn, the sheath component (heat-fusible part) melts at the heat treatment temperature and the base of the multifilament yarn for the loop engaging element can be firmly fixed to the base fabric. A suitable example is a multifilament yarn in which a plurality of core-sheath type monofilaments made of a fusible polyester-based resin and whose core component is made of a polyester-based resin that does not melt under heat treatment conditions are bundled together.
The core-sheath type heat-fusible multifilament yarn described above is made of a heat-fusible polyester resin whose sheath component melts at the heat treatment temperature to firmly fix the base of the monofilament yarn for the hook engaging element to the base fabric. A preferred example is a multifilament yarn in which a plurality of core-sheath type monofilaments are bundled and the core component is made of a polyester resin that does not melt at the heat treatment temperature.
　芯鞘型マルチフィラメントの具体例として、ポリエチレンテレフタレート（リサイクルポリエチレンテレフタレートを含む）を芯成分とし、イソフタル酸やアジピン酸等の共重合成分を多量に（例えば２０～３０モル％）共重合することにより融点又は軟化点を大きく低下させた共重合ポリエチレンテレフタレート（リサイクル共重合ポリエチレンテレフタレートを含む）を鞘成分とする芯鞘型ポリエステル系モノフィラメント糸が挙げられる。鞘成分の融点または軟化点は１００～２００℃であり、かつ経糸、芯成分、フック係合素子用モノフィラメント及びループ係合素子用マルチフィラメント糸の融点より２０～１５０℃低いことが好ましい。芯鞘型熱融着性繊維の断面形状としては、同心芯鞘であっても、偏心芯鞘であっても、あるいは一芯芯鞘であっても、多芯芯鞘であっても良い。 As a specific example of the core-sheath type multifilament, polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol%) of a copolymer component such as isophthalic acid or adipic acid is copolymerized. A core-sheath type polyester monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a significantly lowered melting point or softening point is exemplified. The melting point or softening point of the sheath component is 100 to 200° C., and preferably 20 to 150° C. lower than the melting points of the warp yarn, core component, monofilament for hook engaging element and multifilament yarn for loop engaging element. The cross-sectional shape of the core-sheath type heat-fusible fiber may be a concentric core-sheath, an eccentric core-sheath, a single core-sheath, or a multi-core-sheath.
　緯糸を構成するマルチフィラメント糸の全てが上記芯鞘型熱融着性モノフィラメント糸であることが、ループ係合素子用糸が強固に基布に固定されるので好ましい。緯糸を構成するマルチフィラメント糸が熱融着性のポリマーのみで形成されている場合には、溶けて再度固まった熱融着性ポリマーが脆く割れ易いので、縫製した場合等は縫糸部分から基布が裂け易くなる。したがって、熱融着性モノフィラメント糸は、熱融着されない成分を含んでいることが好ましく、芯鞘の断面形状を有していることがより好ましい。芯成分と鞘成分の質量比率は２０：８０～８０：２０が好ましく、７５：２５～５５：４５がより好ましい。 It is preferable that all of the multifilament yarns constituting the weft yarns are core-sheath type heat-fusible monofilament yarns, because the loop engaging element yarns are firmly fixed to the base fabric. If the multifilament yarns that make up the weft are formed only of a heat-fusible polymer, the heat-fusible polymer that has melted and solidified again is brittle and easily broken. becomes easy to tear. Therefore, the heat-fusible monofilament yarn preferably contains a component that is not heat-fusible, and more preferably has a core-sheath cross-sectional shape. The weight ratio of the core component to the sheath component is preferably 20:80-80:20, more preferably 75:25-55:45.
　緯糸としては１０～７２本の熱融着性モノフィラメント糸からなるトータルデシテックスが８０～３００デシテックスであるマルチフィラメント糸が好ましく、特に１８～３６本の熱融着性モノフィラメント糸からなるトータルデシテックスが１００～２４０デシテックスであるマルチフィラメント糸が好ましい。 The weft yarn is preferably a multifilament yarn composed of 10 to 72 heat-fusible monofilaments and having a total decitex of 80 to 300 decitex, and in particular, a multifilament yarn composed of 18 to 36 heat-fusible monofilaments having a total decitex of 100 to 100 decitex. A multifilament yarn that is 240 decitex is preferred.
　ループ係合素子用糸としては、３２～４５デシテックスのモノフィラメントが６～１２本、好ましくは６～９本集束されたマルチフィラメント糸が好ましい。
　ループ係合素子用マルチフィラメント糸を形成する樹脂はポリエチレンテレフタレート系ポリエステルもしくはポリブチレンテレフタレート系ポリエステルが好ましく、より好ましくはポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）である。ポリエチレンテレフタレート系ポリエステル、ポリブチレンテレフタレート系ポリエステルの詳細は上記したとおりである。 A multifilament yarn in which 6 to 12, preferably 6 to 9 monofilaments of 32 to 45 dtex are bundled is preferable as the yarn for the loop engaging element.
The resin forming the multifilament thread for the loop engaging element is preferably polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester, more preferably polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester). The details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
　以上述べた経糸、緯糸およびループ係合素子用マルチフィラメント糸から、ループ織物面ファスナー用織物を織成する。織物の織組織としては、ループ係合素子用マルチフィラメント糸を経糸の一部として用いた平織が好ましい。ループ係合素子用マルチフィラメント糸は、経糸と平行に存在しつつ、途中で基布面から立ち上がり、経糸を跨ぐことなく１本～数本の緯糸を跨いだ後に緯糸の下に沈んでループを形成するのが好ましい。 A woven fabric for a loop woven surface fastener is woven from the warp, weft, and multifilament yarn for the loop engaging element described above. As the weave structure of the woven fabric, a plain weave using the multifilament yarn for the loop engaging element as a part of the warp is preferable. The multifilament yarn for the loop engaging element, while existing in parallel with the warp, rises from the surface of the base fabric in the middle, straddles one to several wefts without straddling the warp, and then sinks under the weft to form a loop. preferably formed.
　経糸の織密度は、熱処理後の織密度で５０～９０本／ｃｍが、また緯糸の織密度は、熱処理後の織密度で１５～２５本／ｃｍが好ましい。緯糸の質量割合は、ループ織物面ファスナーを構成するループ係合素子用糸、経糸および緯糸の合計質量に対して１０～４５％が好ましい。 The warp weave density after heat treatment is preferably 50 to 90 threads/cm, and the weft density after heat treatment is preferably 15 to 25 threads/cm. The weight ratio of the weft yarn is preferably 10 to 45% with respect to the total weight of the loop engaging element yarn, the warp yarn and the weft yarn constituting the loop woven surface fastener.
　ループ係合素子用マルチフィラメント糸の打ち込み本数は、経糸２０本（ループ係合素子用マルチフィラメント糸を含む）に対して３～６本が好ましい。より好ましくは、経糸５本（ループ係合素子用マルチフィラメント糸を含む）に対してループ係合素子用マルチフィラメント糸１本である。ループ係合素子用糸は経糸に対して偏ることなく均一に打ち込まれるのが好ましい。したがって、４本の経糸の両隣にループ係合素子用マルチフィラメント糸が存在しているのが好ましい。 The number of the multifilament yarns for the loop engaging elements to be driven is preferably 3 to 6 per 20 warp yarns (including the multifilament yarns for the loop engaging elements). More preferably, there is one loop engaging element multifilament yarn for five warp yarns (including the loop engaging element multifilament yarn). It is preferable that the yarns for the loop engaging elements are driven evenly with respect to the warp yarns. Therefore, it is preferred that the loop engaging element multifilament yarns are present on both sides of the four warp yarns.
　ループ織物面ファスナーにおいて、ループ係合素子は経糸方向（ＭＤ方向）に列をなして並んでおり、且つそのような列が緯糸方向（ＣＤ方向）に複数平行に存在している。一つの列のループ係合素子が跨ぐ緯糸が、その隣の列のループ係合素子が跨いでいる緯糸とは異なっていることで、特定の緯糸に剥離の際の力が集中することを防ぐことができ、その結果、剥離耐久性が向上するので好ましい。 In the loop woven surface fastener, the loop engaging elements are arranged in rows in the warp direction (MD direction), and a plurality of such rows exist in parallel in the weft direction (CD direction). The weft over which the loop engaging element in one row is straddled is different from the weft over which the loop engaging element in the next row is straddled, thereby preventing concentration of peeling force on a specific weft. As a result, the peel durability is improved, which is preferable.
　特に本発明において、ループ係合素子用糸は、経糸に平行に経糸４本毎に織り込まれており、緯糸５本を浮沈した後に緯糸上に浮き上がり、１本の緯糸を跨ぐことにより係合素子用ループを形成していることが、係合強力と剥離耐久性の両方を満足できるので好ましい。 In particular, in the present invention, the yarn for the loop engaging element is woven in parallel to the warp for every four warps. Forming a loop is preferable because it satisfies both engagement strength and peeling durability.
　このようにして得られたループ織物面ファスナー用織物は、次に熱処理をして緯糸を構成する芯鞘型熱融着性マルチフィラメント糸の鞘成分を溶融させる。これにより、従来のループ織物面ファスナーで行われていたバックコート処理が不要となり、バックコート用樹脂液に用いられている有機溶剤の蒸散による職場環境の悪化やバックコート樹脂液が製造装置に付着する等の問題、バックコート樹脂層によりループ織物面ファスナーの柔軟性や通気性が損なわれるという問題、さらにバックコート樹脂の存在がループ織物面ファスナーの染色性を損なうという問題を防ぐことができる。熱処理温度は、熱融着性マルチフィラメント糸の鞘成分が溶融または軟化するが、ループ係合素子用ループ、経糸および芯成分は溶融しない温度である１５０～２２０℃が好ましく、より好ましくは１８５～２１０℃である。 The thus-obtained loop fabric surface fastener fabric is then heat treated to melt the sheath component of the core-sheath type heat-fusible multifilament yarn that constitutes the weft yarn. This eliminates the need for backcoating, which is required for conventional loop fabric hook-and-loop fasteners. It is possible to prevent the problems such as the back coat resin layer impairing the flexibility and air permeability of the loop woven surface fastener, and the problem that the presence of the back coat resin impairs the dyeability of the loop woven surface fastener. The heat treatment temperature is preferably 150 to 220° C., more preferably 185 to 185° C., which is a temperature at which the sheath component of the heat-fusible multifilament yarn is melted or softened, but the loop engaging element loop, warp and core component are not melted. 210°C.
　熱処理の際の熱によりループが自然に捩れてループ面が経糸方向と交差する。特に、上記したような太いモノフィラメントが少数集束しているマルチフィラメント糸であって、ループが経糸を跨がずに形成されている場合には、捩れてループ面を経糸方向と交差させ易い。特に、ループ係合素子用糸が経糸を跨ぐことなく緯糸を１本跨ぐことによりループを形成している場合には、捩れ易くループ面を経糸方向と交差させ易い。 　The loops naturally twist due to the heat during the heat treatment, and the loop surface intersects the warp direction. In particular, in the case of a multifilament yarn in which a small number of thick monofilaments are bundled as described above, and the loops are formed without straddling the warp yarns, the yarn tends to be twisted so that the loop surface intersects the warp direction. In particular, when the yarn for the loop engaging element forms a loop by straddling one weft yarn without straddling the warp yarn, it is easy to twist and cause the loop plane to intersect the warp direction.
　ループ面が経糸方向と交差している場合には、フック係合素子との均一な係合が起こり易い。さらにループ係合素子の表面を針布等で撫でることによりループ係合素子を切断されることなく個々のモノフィラメントに分割し易い（バラけ易い）。 When the loop surface intersects the warp direction, uniform engagement with the hook engaging elements is likely to occur. Furthermore, by stroking the surface of the loop engaging element with a cloth or the like, the loop engaging element can be easily divided into individual monofilaments without being cut (easily separated).
　ループ織物面ファスナーにおけるループ係合素子の密度は、ループ係合素子が存在している基布部分基準で２５～１２５個／ｃｍ２が好ましい。また、ループ係合素子の高さは基布面から１．５～３．５ｍｍが好ましい。 The density of the loop engaging elements in the loop fabric hook-and-loop fastener is preferably 25 to 125 pieces/cm 2 based on the portion of the base fabric where the loop engaging elements are present. Moreover, the height of the loop engaging element is preferably 1.5 to 3.5 mm from the surface of the base fabric.
　ループ係合素子の表面を針布等で擦って、ループ係合素子を形成するマルチフィラメント糸を個々のモノフィラメントに分割する（バラけさせる）のが、剥離耐久性を高める上でより好ましい。 It is more preferable to rub the surface of the loop engaging element with a cloth or the like to divide (separate) the multifilament yarn forming the loop engaging element into individual monofilaments in order to improve the peeling durability.
フック／ループ混在型織物面ファスナー
　フック／ループ混在型織物面ファスナー（以下、単に“混在型織物面ファスナー”と称することもある）は、フック係合素子とループ係合素子が基布の同一面に存在する織物面ファスナーである。
　フック／ループ混在型織物面ファスナー（以下、単に“混在型織物面ファスナー”と称することもある）のフック係合素子には、剛直性及び軽い力ではフック形状が伸びない、いわゆるフック形状保持性が求められ、そのために太い合成繊維製のモノフィラメントが用いられる。このようなモノフィラメントとして、特にフック形状保持性に優れたポリブチレンテレフタレート系ポリエステル、またはポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）から形成されたモノフィラメントが用いられる。
　ポリエチレンテレフタレート系ポリエステル、ポリブチレンテレフタレート系ポリエステルの詳細は上記したとおりである。 Hook/Loop Mixed Type Woven Hook-and-Loop Hook/Loop Mixed-Type Woven Hook-and-Loop Fastener (hereinafter sometimes simply referred to as "mixed-type Woven Hook-and-Loop Fastener") has hook engaging elements and loop engaging elements on the same surface of the base fabric. It is a woven hook-and-loop fastener that exists in
The hook engaging elements of the hook/loop mixed type woven surface fastener (hereinafter sometimes simply referred to as "mixed type woven surface fastener") have so-called hook shape retention, which means that the hook shape does not stretch with a light force. is required, and thick synthetic monofilaments are used for this purpose. As such a monofilament, a monofilament formed from polybutylene terephthalate-based polyester or polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester), which is particularly excellent in hook shape retention, is used.
The details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
　フック係合素子用モノフィラメント糸の太さは直径０．１０～０．２５ｍｍがフック係合素子を形成し易いので好ましく、より好ましくは直径０．１２～０．２２ｍｍである。この太さは、従来の一般的な織物面ファスナーのフック係合素子の太さと比べて若干細いが、この細さが、フック及びループ混在型織物面ファスナーに柔軟性をもたらす。 The thickness of the monofilament thread for the hook engaging element is preferably 0.10 to 0.25 mm in diameter because the hook engaging element is easily formed, and more preferably 0.12 to 0.22 mm in diameter. This thickness is slightly smaller than the thickness of the hook engaging elements of conventional general woven surface fasteners, but this thinness provides the hook and loop mixed type woven surface fastener with flexibility.
　フック係合素子の高さは好ましくは１．５～３．０ｍｍ、より好ましくは１．８～２．５ｍｍである。 The height of the hook engaging element is preferably 1.5-3.0 mm, more preferably 1.8-2.5 mm.
　フック係合素子の密度は、１５～５０個／ｃｍ２が好ましく、より好ましくは２０～４０個／ｃｍ２である。 The density of the hook engaging elements is preferably 15-50 pieces/cm 2 , more preferably 20-40 pieces/cm 2 .
　ループ係合素子は、ポリエチレンテレフタレート系ポリエステルもしくはポリブチレンテレフタレート系ポリエステルから形成されたモノフィラメントからなるマルチフィラメントである。ポリエチレンテレフタレート系ポリエステル、ポリブチレンテレフタレート系ポリエステルの詳細は上記したとおりである。 The loop engaging element is a multifilament consisting of monofilaments formed from polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester. The details of the polyethylene terephthalate-based polyester and the polybutylene terephthalate-based polyester are as described above.
　ループ係合素子用マルチフィラメント糸は、５～９本のモノフィラメントからなるトータルデシテックスが１５０～３５０デシテックスのマルチフィラメント糸であることが好ましい。後述する熱融着によりループ係合素子を基布に強固に固定するためには、モノフィラメントの本数が少ない方が好ましいので、混在型織物面ファスナー形成するループ係合素子用マルチフィラメントのモノフィラメント本数は、一般に用いられているループ係合素子を形成するマルチフィラメントのモノフィラメント本数１０～２４本より若干少ない。より好ましくは、６～８本のモノフィラメントからなるトータルデシテックスが２３０～３３０デシテックスのマルチフィラメントである。 The multifilament yarn for the loop engaging element is preferably a multifilament yarn consisting of 5 to 9 monofilaments and having a total decitex of 150 to 350 decitex. In order to firmly fix the loop engaging element to the base fabric by heat fusion, which will be described later, it is preferable that the number of monofilaments is small. , the number of monofilaments is slightly less than 10 to 24 monofilaments of the multifilament forming the loop engaging element generally used. More preferably, it is a multifilament consisting of 6 to 8 monofilaments and having a total decitex of 230 to 330 decitex.
　ループ係合素子の高さは好ましくは１．６～４．０ｍｍ、より好ましくは２．０～３．３ｍｍである。柔軟な肌触り感が得られるので、フック係合素子の高さが１．５～３．０ｍｍ、ループ係合素子の高さが１．６～４．０ｍｍ、かつ、フック係合素子よりもループ係合素子の方が０．１～１．０ｍｍ高いことが好ましく、フック係合素子の高さが１．８～２．５ｍｍ、ループ係合素子の高さが２．０～３．３ｍｍ、かつ、フック係合素子よりもループ係合素子の方が０．２～０．８ｍｍ高いことがより好ましい。 The height of the loop engaging element is preferably 1.6-4.0 mm, more preferably 2.0-3.3 mm. The height of the hook engaging element is 1.5 to 3.0 mm, the height of the loop engaging element is 1.6 to 4.0 mm, and the loop is larger than that of the hook engaging element because a soft touch feeling can be obtained. The engagement element is preferably 0.1 to 1.0 mm higher, the height of the hook engagement element is 1.8 to 2.5 mm, the height of the loop engagement element is 2.0 to 3.3 mm, Further, it is more preferable that the loop engaging element is 0.2 to 0.8 mm higher than the hook engaging element.
　ループ係合素子（マルチフィラメント）の密度は１５～５０個／ｃｍ２が好ましく、より好ましくは２０～４０個／ｃｍ２である。さらに、１００×（ループ係合素子の個数）／（ループ係合素子の個数＋フック係合素子個数）が、３０～７０であることが好ましく、４５～５５であることがより好ましい。 The density of the loop engaging elements (multifilament) is preferably 15-50 pieces/cm 2 , more preferably 20-40 pieces/cm 2 . Further, 100×(number of loop engaging elements)/(number of loop engaging elements+number of hook engaging elements) is preferably 30-70, more preferably 45-55.
　フック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸は、ともに経糸に平行に基布に挿入される。フック係合素子用モノフィラメント糸は数本、例えば５本の緯糸を浮沈した後に基布上に浮き上がり、数本、例えば３～４本の経糸と数本、例えば１～２本の緯糸を跨ぐことによりループ面が経糸方向と交差するループを形成する。ループ係合素子の場合には、経糸を跨ぐことなく、ループ面が経糸方向とほぼ平行になるようにループを形成するのが、ループ係合素子にフック係合素子が引っかかり易い点から好ましい。 Both the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are inserted into the base fabric parallel to the warp yarns. The monofilament yarn for the hook engaging element floats on the base fabric after floating and sinking several wefts, for example five wefts, and straddles several warps, for example 3 to 4 warps and several wefts, for example 1 to 2 wefts. A loop is formed in which the loop surface intersects the warp direction. In the case of the loop engaging element, it is preferable to form the loop so that the loop surface is substantially parallel to the warp direction without straddling the warp, since the hook engaging element is easily caught by the loop engaging element.
　形成したフック係合素子用ループおよびループ係合素子ループは熱処理され、それぞれのループの形状を固定する。この熱処理の際に、熱融着性繊維（緯糸）がループ係合素子及びフック係合素子用ループの根元に融着し、ループ係合素子及びフック係合素子用ループが基布に固定される。
　熱処理温度は熱融着性繊維の鞘成分は溶融するが、経糸、ループ係合素子、フック係合素子用ループおよび熱融着性繊維の芯成分が溶融しない温度であり、好ましくは１５０～２５０℃、より好ましくは１８５～２２０℃である。 The formed hook engaging element loops and loop engaging element loops are heat treated to fix the shape of the respective loops. During this heat treatment, the heat-fusible fibers (weft) are fused to the roots of the loop engaging elements and the loops for the hook engaging elements, and the loop engaging elements and the loops for the hook engaging elements are fixed to the base fabric. be.
The heat treatment temperature is a temperature at which the sheath component of the heat-fusible fiber melts, but the warp yarn, the loop engaging element, the loop for the hook-engaging element, and the core component of the heat-fusible fiber do not melt, and is preferably 150 to 250. °C, more preferably 185 to 220°C.
　熱固定後、フック係合素子用ループの一方のループ脚部を切断することによりフック係合素子が得られる。切断には、２本の固定刃の間を往復する1本の可動切断刃を有する切断装置を用いるのが好ましい。ただし、ループ係合素子が通過する部分には可動切断刃を設けない。上記したように経糸を跨いでフック係合素子用ループが形成されているので、ループの片方の脚部だけを容易に切断できる。隣接するループ係合素子を切断しないようにするためには、フック係合素子用ループを経糸方向に少なくとも２列設けるのが好ましい。 After heat fixing, the hook engaging element is obtained by cutting one loop leg of the hook engaging element loop. For cutting, it is preferable to use a cutting device having one movable cutting blade that reciprocates between two fixed blades. However, the portion through which the loop engaging element passes is not provided with a movable cutting blade. Since the hook engaging element loop is formed across the warp yarns as described above, only one leg of the loop can be easily cut. In order not to cut adjacent loop engaging elements, it is preferable to provide at least two rows of hook engaging element loops in the warp direction.
　基布を形成する経糸としては、耐熱性に優れたポリエチレンテレフタレート系ポリエステル（リサイクルポリエチレンテレフタレート系ポリエステルを含む）のマルチフィラメント糸が好ましく、熱処理条件において、溶融、収縮などによる形状変化が少ないので、ポリエチレンテレフタレートホモポリマー（リサイクルポリエチレンテレフタレートホモポリマーを含む）のマルチフィラメント糸がより好ましい。 Multifilament yarns of polyethylene terephthalate-based polyester (including recycled polyethylene terephthalate-based polyester), which has excellent heat resistance, are preferable for the warp yarns forming the base fabric. Multifilament yarns of terephthalate homopolymer (including recycled polyethylene terephthalate homopolymer) are more preferred.
　経糸用マルチフィラメントは、１２～９６本のモノフィラメントからなり、トータルデシテックスが７５～２５０デシテックスであるマルチフィラメントが好ましく、２４～４８本のモノフィラメントからなるトータルデシテックスが１００～１７０デシテックスであるマルチフィラメントがより好ましい。経糸用マルチフィラメント糸は熱処理後の経糸織密度が６０～９０本／ｃｍとなるように基布に織込むことが好ましい。 The warp multifilament is preferably a multifilament consisting of 12 to 96 monofilaments and having a total decitex of 75 to 250 decitex, more preferably a multifilament consisting of 24 to 48 monofilaments and having a total decitex of 100 to 170 decitex. preferable. The warp multifilament yarn is preferably woven into the base fabric so that the warp weave density after heat treatment is 60 to 90 yarns/cm.
　フック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸は前述したように経糸に平行に基布に織り込まれる。フック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸の打ち込み本数の合計は、経糸本数２０本（フック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸を含む）に対して３～６本が好ましい。 The monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are woven into the base fabric parallel to the warp yarns as described above. The total number of hook-engaging-element monofilament yarns and loop-engaging-element multifilament yarns is 20 warps (including hook-engaging-element monofilament yarns and loop-engaging-element multifilament yarns). 3 to 6 are preferred.
　基布を形成する緯糸は、上記熱処理条件下で熱融着してフック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸の根元を基布に強固に固定できるので、熱融着性マルチフィラメント糸であることが好ましい。例えば、芯成分は熱処理条件で溶融しないが鞘成分は溶融する芯鞘型モノフィラメントが集束したマルチフィラメントが挙げられる。 The weft yarn forming the base fabric is heat-sealed under the heat treatment conditions described above, and the roots of the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element can be firmly fixed to the base fabric. It is preferably a multifilament yarn. For example, there is a multifilament in which core-sheath type monofilaments are bundled, the core component of which does not melt under heat treatment conditions, but the sheath component of which melts.
　芯鞘型モノフィラメントの具体例としては、ポリエチレンテレフタレート（リサイクルポリエチレンテレフタレートを含む）を芯成分とし、イソフタル酸やアジピン酸等の共重合成分を多量に（例えば２０～３０モル％）共重合することにより融点又は軟化点を大きく低下させた共重合ポリエチレンテレフタレート（リサイクル共重合ポリエチレンテレフタレートを含む）を鞘成分とする芯鞘型ポリエステル系モノフィラメント糸が挙げられる。 As a specific example of the core-sheath type monofilament, polyethylene terephthalate (including recycled polyethylene terephthalate) is used as a core component, and a large amount (for example, 20 to 30 mol %) of a copolymer component such as isophthalic acid or adipic acid is copolymerized. A core-sheath type polyester monofilament yarn having a sheath component made of copolymerized polyethylene terephthalate (including recycled copolymerized polyethylene terephthalate) having a significantly lowered melting point or softening point is exemplified.
鞘成分の融点または軟化点は１００～２００℃であり、かつ芯成分、経糸、フック係合素子用モノフィラメント糸およびループ係合素子用マルチフィラメント糸の融点より２０～１５０℃低いことが好ましい。 The melting point or softening point of the sheath component is 100 to 200° C., and is preferably 20 to 150° C. lower than the melting points of the core component, warp yarn, monofilament yarn for hook engaging element and multifilament yarn for loop engaging element.
　緯糸を構成するマルチフィラメント糸の全てが上記熱融着性マルチフィラメント糸であることが、フック係合素子及びループ係合素子用糸が強固に基布に固定されるので好ましい。緯糸を構成するマルチフィラメントの全てが熱融着性ポリマーのみで形成されている場合には、溶けて再度固まった熱融着性ポリマーは脆く割れやすいので、縫製した場合等は縫糸部分から基布が裂け易くなる。したがって、熱融着性モノフィラメント糸は、熱融着されない樹脂成分を含んでいるのが好ましく、芯鞘型の断面形状を有していることがより好ましい。芯成分と鞘成分の重量比率は２０：８０～８０：２０が好ましい。 It is preferable that all of the multifilament yarns constituting the weft yarns are heat-sealable multifilament yarns, because the yarns for hook engaging elements and loop engaging elements are firmly fixed to the base fabric. If all of the multifilaments that make up the weft are made of heat-fusible polymer only, the heat-fusible polymer that has melted and hardened again is brittle and easily broken. becomes easy to tear. Therefore, the heat-fusible monofilament yarn preferably contains a resin component that is not heat-fusible, and more preferably has a sheath-core cross-sectional shape. The weight ratio of the core component to the sheath component is preferably 20:80 to 80:20.
　フック係合素子及びループ係合素子を共により強固に基布に固定するためには、熱融着性フィラメントが熱融着すると共に、熱融着性フィラメント自身が収縮してフック係合素子及びループ係合素子の根元を両サイドから締め付けるのが好ましい。そのためには、熱融着性フィラメントは熱処理条件下で大きく熱収縮することが好ましい。例えば、熱融着性フィラメントの２００℃で１分間加熱した場合の乾熱収縮率が８～２０％であることが好ましく、１１～１８％であることがより好ましい。 In order to fix both the hook engaging element and the loop engaging element to the base fabric more firmly, the heat-fusible filament is heat-sealed and the heat-fusible filament itself shrinks to form the hook engaging element and the loop engaging element. Preferably, the base of the loop engaging element is tightened from both sides. For this purpose, it is preferable that the heat-fusible filament undergoes large heat shrinkage under heat treatment conditions. For example, the dry heat shrinkage of the heat-fusible filament when heated at 200° C. for 1 minute is preferably 8 to 20%, more preferably 11 to 18%.
　緯糸用のマルチフィラメントは、１２～７２本のモノフィラメントからなるトータルデシテックスが１００～３００デシテックスであるマルチフィラメントが好ましく、２４～４８本のモノフィラメントからなるトータルデシテックスが１５０～２５０デシテックスであるマルチフィラメントがより好ましい。緯糸用マルチフィラメント糸は熱処理後の織密度として１５～２５本／ｃｍとなるように基布に織り込むのが好ましい。緯糸の重量割合は、フック係合素子用モノフィラメント、ループ係合素子用マルチフィラメント、経糸及び緯糸の合計重量に対して１５～４０％であるのが好ましい。 The multifilament for the weft is preferably a multifilament composed of 12 to 72 monofilaments and having a total decitex of 100 to 300 decitex, and more preferably a multifilament composed of 24 to 48 monofilaments and having a total decitex of 150 to 250 decitex. preferable. The weft multifilament yarn is preferably woven into the base fabric so that the weaving density after heat treatment is 15 to 25 threads/cm. The weight ratio of the weft yarn is preferably 15 to 40% with respect to the total weight of the monofilament for the hook engaging element, the multifilament for the loop engaging element, the warp and the weft.
　基布の織組織としては、フック係合素子用モノフィラメント糸及びループ係合素子用マルチフィラメント糸を経糸の一部とする平織りが好ましい。フック係合素子用糸は経糸と平行に織り込まれ、その後基布面から立ち上がり、ループを形成しながら経糸を１～４本飛び越えて経糸間にもぐり込む。ループ係合素子用糸は経糸と平行に織り込まれ、その後基布面から立ち上がり、経糸を跨ぐことなく経糸間に潜り込み、経糸方向と平行なループを形成する。このような織組織は、ループ係合素子ループを傷つけることなくフック係合素子用ループの片脚を切断できるので好ましい。 As the weaving structure of the base fabric, a plain weave in which the monofilament yarn for the hook engaging element and the multifilament yarn for the loop engaging element are used as part of the warp is preferable. The hook engaging element yarns are woven in parallel with the warp yarns, then stand up from the surface of the base fabric, jump over one to four warp yarns while forming loops, and enter between the warp yarns. The yarns for the loop engaging elements are woven in parallel with the warp yarns, then stand up from the surface of the base fabric, enter between the warp yarns without straddling the warp yarns, and form loops parallel to the warp yarn direction. Such a weave is preferred because one leg of the hook engaging element loop can be cut without damaging the loop engaging element loop.
　本発明の染色織物面ファスナーは、従来の織物面ファスナーが用いられている用途に用いることができ、例えば、靴、バッグ、帽子、手袋、衣類、血圧計、サポーター類、荷造りの縛りバンド、結束テープ、各種おもちゃ類、土木建築用シートの固定材、各種パネルや壁材の固定材、太陽電池の屋根への固定材、電気部品の固定材、組み立て及び解体自在の収納箱や梱包ケース、小物類、カーテン等の幅広い分野に使用できる。 The dyed fabric hook-and-loop fastener of the present invention can be used for applications where conventional fabric hook-and-loop fasteners are used. Tapes, various toys, fixing materials for civil engineering and construction sheets, fixing materials for various panels and wall materials, fixing materials for solar cells on roofs, fixing materials for electrical parts, storage boxes and packing cases that can be assembled and disassembled freely, small items It can be used in a wide range of fields such as curtains, curtains, etc.
　以下、本発明を実施例により説明するが、本発明はこれら実施例に限定されるものではない。 Although the present invention will be described below with reference to examples, the present invention is not limited to these examples.
製造例１：フック織物面ファスナー
　フック織物面ファスナーを形成する糸として下記の糸を用いた。 Production Example 1 Hook Woven Surface Fastener The following yarns were used as yarns for forming a hook woven surface fastener.
経糸
　融点２６０℃のポリエチレンテレフタレートからなるマルチフィラメント糸
　フィラメント本数：３０本
　トータルデシテックス：１６７ｄｔｅｘ
　撚り数：６０２ｔｕｒｎ／ｍ Warp Multifilament yarn made of polyethylene terephthalate with a melting point of 260°C Number of filaments: 30 Total decitex: 167 dtex
Number of twists: 602 turns/m
緯糸：芯鞘型複合フィラメントからなるマルチフィラメント糸
　芯成分：融点２６０℃ポリエチレンテレフタレート
　鞘成分：軟化点１９０℃のイソフタル酸２５モル％共重合ポリエチレンテレフタレート
　芯成分：鞘成分＝７０：３０（質量比）
　フィラメント本数：２４本
　トータルデシテックス：９９ｄｔｅｘ Weft yarn: multifilament yarn composed of core-sheath type composite filaments Core component: Polyethylene terephthalate with a melting point of 260°C Sheath component: Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C Core component: Sheath component = 70:30 (mass ratio)
Number of filaments: 24 Total decitex: 99 dtex
フック係合素子用糸
　融点２６０℃のポリエチレンテレフタレートからなるモノフィラメント糸
　直径：０．１８ｍｍ
フック織物面ファスナーの製造
　上記経糸、緯糸およびフック係合素子用モノフィラメント糸を用いて平織りのフック織物面ファスナー用織物を得た。
　熱処理後の経糸の織密度が５２本／ｃｍ（フック係合素子用モノフィラメント糸を含む）、緯糸の織密度が１８本／ｃｍになるように織った。
　経糸４本に１本の割合でフック係合素子用モノフィラメント糸を経糸に平行に打ち込んだ。フック係合素子用モノフィラメント糸は緯糸５本を浮沈したのち緯糸上に浮き上がり、緯糸１本および経糸３本を跨ぐことによりループを形成するようにした。ループ形成したフック係合素子用モノフィラメント糸は、引き続き緯糸５本を浮沈したのち緯糸上に浮き上がり、緯糸１本および経糸３本を跨いでループを形成し、その後経糸間に戻るように織った。 Thread for hook engaging element Monofilament thread made of polyethylene terephthalate with a melting point of 260°C Diameter: 0.18 mm
Production of Hook Woven Surface Fastener Using the warp, weft, and monofilament yarn for the hook engaging element, a plain weave fabric for hook woven surface fastener was obtained.
The fabric was woven so that the warp weave density after the heat treatment was 52 threads/cm (including the monofilament threads for hook engaging elements) and the weft thread weave density was 18 threads/cm.
One monofilament thread for the hook engaging element was driven in parallel with the warp threads at a rate of one per four warp threads. The monofilament yarn for the hook engaging element floats and sinks on five wefts, floats on the wefts, and straddles one weft and three warps to form a loop. The loop-formed monofilament yarn for the hook engaging element was woven so that it floated on five wefts, floated on the wefts, straddled one weft and three warps to form a loop, and then returned between the warps.
　得られたフック織物面ファスナー用織物を、緯糸の鞘成分のみが熱溶融し、かつ、経糸、フック状係合素子用モノフィラメント糸および緯糸の芯成分が熱溶融しない温度である２０５℃で１分間熱処理した。その結果、鞘成分が溶融し、近隣に存在する糸が緯糸の芯成分に融着していた。 The obtained fabric for hook fabric hook-and-loop fastener was heated at 205° C. for 1 minute, which is a temperature at which only the sheath component of the weft yarn is heat-melted and the warp yarn, the monofilament yarn for the hook-like engaging element and the core component of the weft yarn are not heat-melted. heat treated. As a result, the sheath component was melted, and the neighboring yarn was fused to the core component of the weft.
　次いで、フック係合素子用ループの片脚を、フック係合素子ループの高さの下から４／５の位置で切断し、フック係合素子形成した。得られたフック織物面ファスナーのフック係合素子密度は４８個／ｃｍ２であり、フック係合素子の基布面からの高さは１．８５ｍｍであった。 One leg of the hook engaging element loop was then cut at a position 4/5 from below the height of the hook engaging element loop to form the hook engaging element. The density of the hook engaging elements of the obtained hook fabric hook-and-loop fastener was 48 pieces/cm 2 , and the height of the hook engaging elements from the surface of the base fabric was 1.85 mm.
製造例２：ループ織物面ファスナー
　ループ織物面ファスナーを形成する糸として下記の糸を用いた。 Production Example 2: Loop Woven Hook-and-Loop Fastener The following yarn was used as the yarn for forming the loop woven hook-and-loop fastener.
経糸
　融点２６０℃のポリエチレンテレフタレートからなるマルチフィラメント糸
　フィラメント本数：３６本
　トータルデシテックス：１６７ｄｔｅｘ
　撚り数：６０２ｔｕｒｎ／ｍ Warp Multifilament yarn made of polyethylene terephthalate with a melting point of 260°C Number of filaments: 36 Total decitex: 167 dtex
Number of twists: 602 turns/m
緯糸：芯鞘型複合フィラメントからなるマルチフィラメント糸
　芯成分：融点２６０℃のポリエチレンテレフタレート
　鞘成分：軟化点１９０℃のイソフタル酸２５モル％共重合ポリエチレンテレフタレート
　芯成分：鞘成分＝７０：３０（質量比）
　フィラメント本数：２４本
　トータルデシテックス：１２０ｄｔｅｘ Weft: Multifilament yarn made of core-sheath type composite filament Core component: Polyethylene terephthalate with a melting point of 260°C Sheath component: Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C Core component: Sheath component = 70:30 (mass ratio )
Number of filaments: 24 Total decitex: 120dtex
ループ係合素子用マルチフィラメント糸
　ポリトリメチレンテレフタレートを５質量％ブレンドしたポリブチレンテレフタレートからなるマルチフィラメント糸
　融点：２２０℃
　フィラメント本数：７本
　トータルデシテックス：２６５ｄｔｅｘ Multifilament yarn for loop engaging element Multifilament yarn made of polybutylene terephthalate blended with 5% by mass of polytrimethylene terephthalate Melting point: 220°C
Number of filaments: 7 Total decitex: 265dtex
ループ織物面ファスナーの製造
　上記経糸、緯糸およびループ係合素子用マルチフィラメント糸を用いて平織りのループ織物面ファスナー用織物を得た。
　熱処理後の経糸の織密度が５５本／ｃｍ、緯糸の織密度が２２本／ｃｍとなるように織った。
　経糸４本に１本の割合でループ係合素子用マルチフィラメント糸を、経糸を跨ぐことなく経糸に平行に打ち込んだ。その後、ループ係合素子用マルチフィラメント糸は緯糸５本を浮沈したのち基布上に浮き上がり、経糸を跨ぐことなく緯糸１本を跨いでループを形成するようにした。
　得られたループ織物面ファスナー用織物の表面にはループが経糸方向に列をなして並んでおり、このような列が緯糸方向に複数、平行に存在していた。また、一つの列に存在しているループが跨ぐ緯糸が、その隣の列の２つのループが跨いでいる２本の緯糸の経糸方向中間に位置する緯糸であった。また、ほとんどのループ係合素子のループ面は経糸方向に捩れていた。 Production of Loop Woven Surface Fastener Using the warp yarn, weft yarn and multifilament yarn for the loop engaging element, a plain weave fabric for loop woven surface fastener was obtained.
The fabric was woven so that the warp weave density after the heat treatment was 55/cm and the weft weave density was 22/cm.
A multifilament yarn for the loop engaging element was driven in parallel to the warp yarns without straddling the warp yarns at a rate of one per four warp yarns. After that, the multifilament yarn for the loop engaging element floats and sinks on the five wefts, floats on the base fabric, and forms a loop by straddling one weft without straddling the warp.
Loops were arranged in rows in the warp direction on the surface of the obtained loop fabric surface fastener fabric, and a plurality of such rows existed in parallel in the weft direction. Also, the weft straddled by the loop existing in one row was the weft positioned midway in the warp direction of the two wefts straddled by the two loops in the adjacent row. Also, the loop surfaces of most of the loop engaging elements were twisted in the warp direction.
　得られたループ織物面ファスナー用織物を、緯糸の鞘成分のみが熱溶融し、かつ、経糸、ループ係合素子用マルチフィラメント糸、および緯糸の芯成分が熱溶融しない温度である２００℃で１分間熱処理した。その結果、鞘成分が溶融し、近隣に存在する糸が緯糸の芯成分に融着していた。
　ループ係合素子密度は４４個／ｃｍ２であり、ループ状係合素子の基布面からの高さは２．４０ｍｍであった。 The obtained fabric for loop fabric hook-and-loop fastener was heated at 200° C. for 1 hour at a temperature at which only the sheath component of the weft yarn melted, and the warp yarn, the multifilament yarn for the loop engaging element, and the core component of the weft yarn did not melt. heat treated for a minute. As a result, the sheath component was melted, and the neighboring yarn was fused to the core component of the weft.
The loop engaging element density was 44 pieces/cm 2 , and the height of the loop-shaped engaging elements from the base fabric surface was 2.40 mm.
製造例３：リサイクル材料を用いたフック織物面ファスナーとループ織物面ファスナー
　下記のリサイクル材料からなる糸を用いた以外は製造例１および２と同様にしてフック織物面ファスナーとループ織物面ファスナーを製造した。 Production Example 3: Hook woven surface fastener and loop woven surface fastener using recycled materials A hook woven surface fastener and a loop woven surface fastener were produced in the same manner as in Production Examples 1 and 2, except that threads made of the following recycled materials were used. bottom.
フック織物面ファスナー
経糸
　融点２６０℃のリサイクルポリエチレンテレフタレートからなるマルチフィラメント糸
　フィラメント本数：３０本
　トータルデシテックス：１６７ｄｔｅｘ
　撚り数：６０２ｔｕｒｎ／ｍ
緯糸：芯鞘型複合フィラメントからなるマルチフィラメント糸
　芯成分：融点２６０℃のリサイクルポリエチレンテレフタレート
　鞘成分：軟化点１９０℃のイソフタル酸２５モル％共重合ポリエチレンテレフタレート
　芯成分：鞘成分＝７０：３０（質量比）
　フィラメント本数：２４本
　トータルデシテックス：９９ｄｔｅｘ Hook fabric surface fastener warp Multifilament yarn made of recycled polyethylene terephthalate with a melting point of 260 ° C. Number of filaments: 30 Total decitex: 167 dtex
Number of twists: 602 turns/m
Weft: Multifilament yarn made of core-sheath type composite filament Core component: Recycled polyethylene terephthalate with a melting point of 260°C Sheath component: Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C Core component: Sheath component = 70:30 (mass ratio)
Number of filaments: 24 Total decitex: 99 dtex
フック係合素子用糸
　融点２６０℃のリサイクルポリエチレンテレフタレートからなるモノフィラメント糸 Thread for hook engaging element Monofilament thread made of recycled polyethylene terephthalate with a melting point of 260°C
ループ織物面ファスナー
経糸
　融点２６０℃のリサイクルポリエチレンテレフタレートからなるマルチフィラメント糸
　フィラメント本数：３６本
　トータルデシテックス：１６７ｄｔｅｘ
　撚り数：６０２ｔｕｒｎ／ｍ
緯糸：芯鞘型複合フィラメントからなるマルチフィラメント糸
　芯成分：融点２６０℃のリサイクルポリエチレンテレフタレート
　鞘成分：軟化点１９０℃のイソフタル酸２５モル％共重合ポリエチレンテレフタレート
　芯成分：鞘成分＝７０：３０（質量比）
　フィラメント本数：２４本
　トータルデシテックス：１２０ｄｔｅｘ
ループ係合素子用マルチフィラメント糸
　ポリトリメチレンテレフタレートを５質量％ブレンドしたポリブチレンテレフタレートからなるマルチフィラメント糸
　融点：２２０℃
　フィラメント本数：７本
　トータルデシテックス：２６５ｄｔｅｘ Loop fabric surface fastener warp Multifilament yarn made of recycled polyethylene terephthalate with a melting point of 260 ° C. Number of filaments: 36 Total decitex: 167 dtex
Number of twists: 602 turns/m
Weft: Multifilament yarn made of core-sheath type composite filament Core component: Recycled polyethylene terephthalate with a melting point of 260°C Sheath component: Polyethylene terephthalate copolymerized with 25 mol% isophthalic acid with a softening point of 190°C Core component: Sheath component = 70:30 (mass ratio)
Number of filaments: 24 Total decitex: 120dtex
Multifilament yarn for loop engaging element Multifilament yarn made of polybutylene terephthalate blended with 5% by mass of polytrimethylene terephthalate Melting point: 220°C
Number of filaments: 7 Total decitex: 265dtex
実施例１
　製造例１と２で得たフック織物面ファスナーとループ織物面ファスナーのそれぞれを、上記したビーム型超臨界ＣＯ２染色装置を用いて分散染料により濃色（黒）に染色した。
　なお、分散染料として、紀和化学工業株式会社製のプラスチック染料“ＫＰ　ＰＬＡＳＴ（商品名）”シリーズの染料を下記の割合で混合して得た黒色染料を用いた。
　KP　Plast　Orange　HG　(C.I.　Solvent　Orange　60)：４５重量部
　KP　Plast　Violet　R　(C.I.　Solvent　Violet　31)：２５重量部
　KP　Plast　Blue　G　(C.I.　Solvent　Blue　78)：３０重量部
　染色方法の概略を以下に示す。
１．織物面ファスナーを巻いたビームを染色槽（チューブ）に投入した。
２．液化ＣＯ２の温度を１２０℃、圧力を２５ＭＰａまで上げて超臨界ＣＯ２にし、超臨界ＣＯ２を循環させた。
３．循環方法はビームの内側から貫通孔を経てビームの外側へ流れる一方向循環で行なった。
４．循環経路に設けた染料タンクに超臨界ＣＯ２を循環させ、超臨界ＣＯ２に染料を溶解させ、染色槽に染料を供給した。
５．温度１２０℃、圧力２５ＭＰａに到達後、３０分キープした。
６．３０分のキープ後、新しい液化ＣＯ２を装置内に供給し、残存染料が溶解している使用済みの超臨界ＣＯ２を分離装置に移送した。
７．使用済みの超臨界ＣＯ２を移送した後、１００℃を下回る温度まで冷却し、圧を大気圧に戻して、乾いた染色織物面ファスナーを染色槽内から取り出す。 Example 1
Each of the hook woven surface fastener and the loop woven surface fastener obtained in Production Examples 1 and 2 was dyed in a deep color (black) with a disperse dye using the beam-type supercritical CO 2 dyeing apparatus described above.
As the disperse dye, a black dye obtained by mixing the plastic dye "KP PLAST (trade name)" series manufactured by Kiwa Kagaku Kogyo Co., Ltd. at the following ratio was used.
KP Plast Orange HG (CI Solvent Orange 60): 45 parts by weight KP Plast Violet R (CI Solvent Violet 31): 25 parts by weight KP Plast Blue G (CI Solvent Blue 78): 30 parts by weight The outline of the dyeing method is shown below. .
1. A beam wrapped with a fabric hook-and-loop fastener was put into a dyeing tank (tube).
2. The temperature of the liquefied CO2 was raised to 120 °C and the pressure to 25 MPa to supercritical CO2 , and the supercritical CO2 was circulated.
3. The circulation method was one-way circulation from the inside of the beam to the outside of the beam through the through holes.
4. Supercritical CO2 was circulated in the dye tank provided in the circulation path, the dye was dissolved in the supercritical CO2 , and the dye was supplied to the dyeing bath.
5. After reaching a temperature of 120° C. and a pressure of 25 MPa, the temperature was maintained for 30 minutes.
6. After 30 minutes keep, fresh liquefied CO2 was fed into the device and spent supercritical CO2 with residual dye dissolved was transferred to the separation device.
7. After transferring the spent supercritical CO 2 , it is cooled to below 100° C., the pressure is returned to atmospheric pressure, and the dry dyed fabric hook-and-loop fastener is removed from the dyeing bath.
実施例２
　製造例３で得たリサイクル材を使用したフック織物面ファスナーとループ織物面ファスナーのそれぞれを実施例１と同様に染色し、染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。 Example 2
The hook woven surface fastener and loop woven surface fastener using the recycled material obtained in Production Example 3 were each dyed in the same manner as in Example 1 to obtain a dyed hook woven surface fastener and a dyed loop woven surface fastener.
実施例３
　染色方法の概略の「２．」及び「５．」において、温度を１２０℃から１１０℃に変更した以外は実施例１と同様の操作を行い、染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。 Example 3
In "2." and "5." in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 110 ° C., and the dyed hook woven fabric hook-and-loop fastener and the dyed loop woven fabric hook-and-loop fastener were produced. Obtained.
実施例４
　染色方法の概略の「２．」及び「５．」において、温度を１２０℃から１３０℃に変更した以外は実施例１と同様の操作を行い、染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。 Example 4
In "2." and "5." in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 130 ° C., and the dyed hook woven fabric hook-and-loop fastener and the dyed loop woven fabric hook-and-loop fastener were produced. Obtained.
比較例２
　染色方法の概略の「２．」及び「５．」において、温度を１２０℃から１００℃に変更し、また「７．」を下記７－１．のとおりとした以外は実施例１と同様の操作を行い、染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。
７―１．使用済みの超臨界ＣＯ２を移送した後、圧を大気圧に戻して、乾いた染色織物面ファスナーを染色槽内から取り出す。 Comparative example 2
In "2." and "5." of the outline of the dyeing method, the temperature was changed from 120 ° C. to 100 ° C., and "7." was changed to the following 7-1. A dyed hook woven fabric surface fastener and a dyed loop woven fabric surface fastener were obtained by performing the same operation as in Example 1 except as follows.
7-1. After transferring the spent supercritical CO 2 , the pressure is returned to atmospheric pressure and the dry dyed fabric hook-and-loop fastener is removed from the dyeing tank.
比較例３
　染色方法の概略の「２．」及び「５．」において、温度を１２０℃から１４０℃に変更した以外は実施例１と同様の操作を行い、染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。 Comparative example 3
In "2." and "5." in the outline of the dyeing method, the same operation as in Example 1 was performed except that the temperature was changed from 120 ° C. to 140 ° C., and the dyed hook woven surface fastener and the dyed loop woven surface fastener were manufactured. Obtained.
比較例１
　製造例１と２で得たフック織物面ファスナーとループ織物面ファスナーのそれぞれを水系染色（高温高圧チーズ染色）した以外は実施例１と同様にして黒色に染色した染色フック織物面ファスナーと染色ループ織物面ファスナーを得た。
　従来用いられているチーズ染色機を用いた。チーズ染色機は円筒形の染色槽とそれに投入する円筒形のキャリヤーを有する。キャリヤーは高さ方向に数段の仕切り板を有する。染色液が十分に循環するように仕切り板には無数の穴が開けられている。この仕切り板に織物面ファスナーのロールを載せる。織物面ファスナーのロールを載せた多数の仕切り板が積層されたキャリヤーを染色槽に入れ、染色液をヒーターおよび循環ポンプを介して仕切り板の上から下へ、または下から上へと循環させ、織物面ファスナーを染色する。
　チーズ染色の概略を以下に示す。
１．染色槽に常温の水を貯め、染色助剤（分散剤、均染剤等）を投入し１０分間循環させた。
２．数個の織物面ファスナーのロールをキャリヤーの仕切り板上に積層した。
３．キャリヤーを染色槽に投入した。
４．染色槽の水を６０℃まで昇温した後、キャリヤーを染色槽から取り出した。
５．染色槽に分散染料（タキシードブラック）を投入し、再度キャリヤーを投入した。
６．１３５℃まで昇温し、１３５℃に到達後、６０分キープした。
７．６０分のキープ後、８０℃以下まで冷却した。
８．染色槽内の残液を全て排出した。
９．染色槽にオーバーフローするまで新たに水を貯めた。
１０．オーバーフローさせながらキャリヤーを染色槽に投入した。
１１．上記８～１０を３回繰り返し、水系染色した染色織物面ファスナーを得た。 Comparative example 1
A dyed hook fabric hook-and-loop fastener and a dyed loop dyed black in the same manner as in Example 1 except that the hook fabric hook-and-loop fastener and the loop fabric hook-and-loop fastener obtained in Production Examples 1 and 2 were dyed in a water system (high temperature and high pressure cheese dyeing). A woven hook-and-loop fastener was obtained.
A conventional cheese dyeing machine was used. A cheese dyeing machine has a cylindrical dyeing tank and a cylindrical carrier that is loaded into it. The carrier has several levels of partitions in the height direction. Innumerable holes are drilled in the partition plate so that the staining solution can circulate sufficiently. A roll of fabric hook-and-loop fastener is placed on this partition plate. A carrier laminated with a number of partition plates on which rolls of fabric hook-and-loop fasteners are placed is placed in a dyeing tank, and a dyeing solution is circulated from the top to the bottom or from the bottom to the top of the partition plate via a heater and a circulation pump, Dyeing woven hook-and-loop fasteners.
An outline of cheese staining is shown below.
1. Room temperature water was stored in a dyeing bath, and dyeing aids (dispersant, leveling agent, etc.) were added and circulated for 10 minutes.
2. Several rolls of woven hook-and-loop fastener were laminated onto the carrier dividers.
3. The carrier was introduced into the dyeing bath.
4. After raising the temperature of the water in the dyeing bath to 60° C., the carrier was removed from the dyeing bath.
5. A disperse dye (tuxedo black) was put into the dyeing tank, and the carrier was put again.
6. The temperature was raised to 135°C and kept for 60 minutes after reaching 135°C.
After keeping for 7.60 minutes, it was cooled to 80°C or less.
8. All the residual liquid in the dyeing tank was discharged.
9. Fresh water was added to the dyeing bath until it overflowed.
10. The carrier was introduced into the dyeing tank while allowing it to overflow.
11. The above 8 to 10 were repeated three times to obtain a water-based dyed fabric hook-and-loop fastener.
　上記実施例１～４及び比較例１～３で得られた染色フック織物面ファスナーと染色ループ織物面ファスナーの各特性を測定した。 The properties of the dyed hook woven fabric hook-and-loop fasteners and the dyed loop woven fabric hook-and-loop fasteners obtained in Examples 1 to 4 and Comparative Examples 1 to 3 were measured.
結晶化度
　染色フック織物面ファスナーと染色ループ織物面ファスナーからそれぞれ約３ｍｇの経糸、緯糸、フック係合素子、ループ係合素子を採取し、示差走査熱量計（ＤＳＣ）によりＤＳＣ曲線を得た。このＤＳＣ曲線を解析することにより試料の吸熱、発熱が生じた際の熱量、融点、結晶化温度、ガラス転移温度などの解析データを得た。得られた解析データを基にして結晶化度を算出した。
　以下の表において、測定値は３回の測定の平均である。
Figure JPOXMLDOC01-appb-T000001
 Crystallinity Approximately 3 mg of warp yarn, weft yarn, hook engaging element, and loop engaging element were collected from each of the dyed hook woven surface fastener and the dyed loop woven surface fastener, and a DSC curve was obtained by a differential scanning calorimeter (DSC). By analyzing this DSC curve, analytical data such as heat quantity, melting point, crystallization temperature, glass transition temperature, etc. when endothermic or exothermic heat was generated in the sample were obtained. The crystallinity was calculated based on the obtained analytical data.
In the table below, the measurements are the average of three measurements.
Figure JPOXMLDOC01-appb-T000001
　表１から明らかなように、水系染色した場合と比べて、超臨界ＣＯ２染色した場合は、経糸、緯糸および係合素子のいずれにおいても結晶化度は低かった。 As is clear from Table 1, the degree of crystallinity was lower in both warp, weft and engaging elements when supercritical CO2 dyed compared to water-based dyed.
引張特性
　ＪＩＳ　Ｌ３４１６：２０００の７．４．１ａ）１に規定されている引張試験機に準拠した卓上形精密万能試験機（オートグラフ）を使用し、ＪＩＳ　Ｌ１０１３：２０１０の８．９に規定されている伸長弾性率試験に準拠して測定した。係合測定用治具を試験糸測定用の治具に交換した。染色フック織物面ファスナーと染色ループ織物面ファスナーから採取した試験糸（フック係合素子又はループ係合素子）を上下のチャック（チャック間隔：１０ｃｍ）に固定し、測定を開始し、試験糸の破断強度、破断伸度、弾性率、破断長を求めた。表２の測定値は１０回の測定の平均である。
Figure JPOXMLDOC01-appb-T000002
 Tensile properties JIS L3416: 2000 7.4.1a) Using a desktop precision universal testing machine (Autograph) conforming to the tensile tester specified in 1, JIS L1013: 2010 8.9 It was measured according to the elongation modulus test. The engagement measurement jig was replaced with a test thread measurement jig. Fix the test thread (hook engaging element or loop engaging element) collected from the dyed hook fabric hook-and-loop fastener and the dyed loop fabric hook-and-loop fastener to the upper and lower chucks (chuck interval: 10 cm), start the measurement, and break the test thread The strength, breaking elongation, elastic modulus and breaking length were determined. The measurements in Table 2 are the average of 10 measurements.
Figure JPOXMLDOC01-appb-T000002
　表２から明らかなように、本発明の染色織物面ファスナーから採取したフック係合素子とループ係合素子の破断強度は水系染色した場合よりも低くなっていた。また、破断伸度と破断長は水系染色した場合よりも大きくなっていた。 As is clear from Table 2, the breaking strength of the hook engaging elements and loop engaging elements obtained from the dyed fabric hook-and-loop fastener of the present invention was lower than in the case of water-based dyeing. In addition, the elongation at break and the length at break were larger than those in the case of water-based dyeing.
染着性
　超臨界ＣＯ２染色後の染色織物面ファスナーの各糸の断面を顕微紫外可視近赤外分光光度計で観察して染色の程度を測定した。 Dyeability After supercritical CO 2 dyeing, the cross section of each thread of the dyed fabric hook-and-loop fastener was observed with a micro-ultraviolet-visible-near-infrared spectrophotometer to measure the degree of dyeing.
　芯鞘型複繊維の鞘部分については、ＪＩＳ　Ｋ　０１１５：２０２０に基づいた紫外可視分光法により、紫外域から近赤外域までの広範囲な波長領域で、分光透過率を測定した。
　分光透過率の測定装置としては、日本分光株式会社「MSV-5200　DGK」（測定法：透過測定、波長範囲２００～２７００ｎｍ）を用いた。測定に際し、緯糸の熱融着部の中で目視で最も濃く見える部分に焦点を合わせ、１０μｍの大きさで測定した。異なる１０本の緯糸について分光透過率を測定し、平均値を分光透過率の値とした。
Figure JPOXMLDOC01-appb-T000003
 For the sheath portion of the core-sheath type double fiber, the spectral transmittance was measured in a wide wavelength range from the ultraviolet region to the near-infrared region by UV-visible spectroscopy based on JIS K 0115:2020.
As a spectral transmittance measuring device, JASCO Corporation "MSV-5200 DGK" (measurement method: transmission measurement, wavelength range 200 to 2700 nm) was used. In the measurement, the focus was focused on the darkest portion of the heat-bonded portion of the weft, and the measurement was performed at a size of 10 μm. The spectral transmittance was measured for 10 different wefts, and the average value was taken as the value of the spectral transmittance.
Figure JPOXMLDOC01-appb-T000003
　表３から、実施例１と２のフック係合素子は外部だけではなく内部（中心から６５．０±１０．０％の範囲を除く部分）に染料が染着したことがわかる。一方、比較例１では、フック係合素子の内部のわずかの
部分に染料が染着していた。
　また、鞘成分（熱融着部）も染まっており、水系染色した場合（比較例１）と比べて均一に染まったことが分かる。
　さらに、芯成分はその断面全体に染料が侵入（存在）していた。すなわち、断面全体に染料が染着していた。一方、水系染色した場合（比較例１）は、芯成分内部への染料の侵入（存在）は認められなかった。 From Table 3, it can be seen that the hook engaging elements of Examples 1 and 2 were dyed not only on the outside but also on the inside (parts excluding the range of 65.0±10.0% from the center). On the other hand, in Comparative Example 1, a small portion of the inside of the hook engaging element was stained with the dye.
In addition, the sheath component (heat-sealed portion) was also dyed, and it can be seen that the dyeing was more uniform than in the case of water-based dyeing (Comparative Example 1).
In addition, the dye penetrated (existed) in the entire cross section of the core component. That is, the entire cross section was dyed with the dye. On the other hand, in the case of water-based dyeing (Comparative Example 1), no penetration (existence) of the dye into the core component was observed.
染色織物面ファスナーの係合強力
ａ．引っ張りせん断強さ（シアー強力）
　ＪＩＳ　Ｌ３４１６：２０００の７．４．１に規定されている引張せん断強さに準拠し測定した。染色フック織物面ファスナーおよび染色ループ織物面ファスナーをそれぞれ２５ｍｍ幅×１００ｍｍ長にカットした。フック面ファスナーを下に、ループ面ファスナーを上にして、それぞれの面ファスナーの端から５０ｍｍの部分をそれぞれの面ファスナーに掴み部（非係合部分）が残るように載置した。次いで、２ｋｇローラーにて２往復転圧して試料を作製した。試料の一方の掴み部（長さ３０ｍｍ以内）を卓上形精密万能試験機の上部チャックに、他方の掴み部（長さ３０ｍｍ以内）を下部チャックにセットし、強力を測定した。 Engagement Strength of Dyed Fabric Hook-and-Loop Fasteners a. Tensile shear strength (shear strength)
It was measured according to the tensile shear strength specified in 7.4.1 of JIS L3416:2000. A dyed hook woven hook-and-loop fastener and a dyed loop woven hook-and-loop fastener were each cut to 25 mm wide by 100 mm long. With the hook hook-and-loop fastener facing down and the loop hook-and-loop fastener facing up, each hook-and-loop fastener was placed so that a portion 50 mm from the end of each hook-and-loop fastener was left with a gripping portion (non-engaging portion). Then, a sample was prepared by two reciprocating rolling compactions with a 2 kg roller. One gripping portion (within 30 mm in length) of the sample was set in the upper chuck of a desktop precision universal testing machine, and the other gripping portion (within 30 mm in length) was set in the lower chuck, and the strength was measured.
ｂ．剥離強さ（ピール強力）
　ＪＩＳ　Ｌ３４１６：２０００の７．４．２に規定されている剥離強さに準拠し測定した。染色フック織物面ファスナー及び染色ループ織物面ファスナーを２５ｍｍ幅×１５０ｍｍ長にカットした。染色フック織物面ファスナーを上に、染色ループ織物面ファスナーを下にして両端が揃うように載置した。次いで、２ｋｇローラーにて２往復転圧して試料を作製した。試料の端から３０ｍｍ以内の部分を剥がし、剥がした部分を卓上形精密万能試験機のチャックにセットし、剥離強さを測定した。 b. Peel strength (peel strength)
It was measured according to the peel strength specified in 7.4.2 of JIS L3416:2000. Dyed hook woven hook-and-loop fasteners and dyed loop woven hook-and-loop fasteners were cut to 25 mm wide by 150 mm long. The dyed hook fabric hook-and-loop fastener was placed on top and the dyed loop fabric hook-and-loop fastener was placed on the bottom so that both ends were aligned. Then, a sample was prepared by two reciprocating rolling compactions with a 2 kg roller. A portion within 30 mm from the edge of the sample was peeled off, and the peeled portion was set in a chuck of a desktop precision universal testing machine to measure the peel strength.
ｃ．繰り返し剥離耐久性
　ＪＩＳ　Ｌ３４１６：２０００の７．５．１ｃに規定されている耐久性試験機に準拠した剥離試験機を用いた。染色フック織物面ファスナーと染色ループ織物面ファスナーを剥離試験機にセットし、既定の５，０００回係合と剥離を繰り返した。剥離が完了後、上記の引っ張りせん断強さ（シアー強力）測定、剥離強さ（ピール強力）測定の方法に準じて強力を測定した。表４の測定値は３回の測定の平均である。
Figure JPOXMLDOC01-appb-T000004
  c. Repeated Peeling Durability A peeling tester conforming to the durability tester specified in 7.5.1c of JIS L3416:2000 was used. The dyed hook woven fabric hook-and-loop fastener and the dyed loop woven fabric hook-and-loop fastener were set in a peel tester, and the specified 5,000 times of engagement and peeling were repeated. After the peeling was completed, the strength was measured according to the above-described tensile shear strength (shear strength) measurement and peel strength (peel strength) measurement methods. The measurements in Table 4 are the average of three measurements.
Figure JPOXMLDOC01-appb-T000004
　水系染色した場合に比べて、超臨界ＣＯ２染色した場合の方が、初回と５，０００回係合／剥離を繰り返した後の引っ張りせん断強さと剥離強さに優れていることが分かる。 It can be seen that the supercritical CO2 dyeing has superior tensile shear strength and peel strength after the initial and 5,000 engagement/peel cycles compared to the water-based dyeing.
ｄ．係合本数
　剥離強さ（ピール強力）測定前の試料と繰り返し剥離耐久性測定後の試料について測定した。拡大鏡を用いて、試料の２５ｍｍ幅×２０ｍｍ長の部分（４５０のループ係合素子が存在）に存在する係合したループ係合素子の本数を剥離させながら目視でカウントした。さらに、ループ係合素子中のフィラメント（４５０×８＝３，６００フィラメント）の内の係合したフィラメント数を求めた。表５の係合数は３回の測定の平均である。
Figure JPOXMLDOC01-appb-T000005
 d. Number of engagements Measured for a sample before peel strength (peel strength) measurement and a sample after repeated peel durability measurement. Using a magnifying glass, the number of engaged loop engaging elements present in a 25 mm wide by 20 mm long portion of the sample (there were 450 loop engaging elements) was visually counted while being peeled off. Furthermore, the number of filaments engaged among the filaments (450×8=3,600 filaments) in the loop engaging element was determined. The engagement numbers in Table 5 are the average of three measurements.
Figure JPOXMLDOC01-appb-T000005
　初回のループ係合素子の係合本数は水系染色した場合の方が多いが、表４の結果では超臨界ＣＯ２染色した場合の方が引っ張りせん断強さと剥離強さに優れている。
　表５の結果から、超臨界ＣＯ２染色した染色織物面ファスナーでは、水系染色した染色織物面ファスナーと比べて、ループ係合素子中のフィラメントがより多く係合していること、すなわち、１本のフック係合素子がより多くのフィラメントを掴んでいることが分かる。
　表４と５の結果は、係合したループ係合素子の本数が多くても、ループ係合素子中の係合したフィラメント数が少ない場合は、引っ張りせん断強さと剥離強さが低下することを示している。 Although the number of loop engaging elements engaged at the first time is greater in the case of water-based dyeing, the results in Table 4 show that the case of supercritical CO 2 dyeing is superior in tensile shear strength and peel strength.
From the results in Table 5, it can be seen that more filaments in the loop engaging element are engaged in the dyed fabric hook-and-loop fastener dyed with supercritical CO2 compared to the water-based dyed dyed fabric hook-and-loop fastener, i.e., one hook engaging element grips more filament.
The results in Tables 4 and 5 show that even with a large number of engaged loop-engaging elements, when the number of engaged filaments in the loop-engaging elements is low, the tensile shear strength and peel strength decrease. showing.
高温下での昇華堅牢度
　換気・循環型恒温器を用いた。恒温器を既定の温度（１６０～２００℃）に設定し、設定温度に達してから３０分後、試料を恒温器内に投入し、２４時間放置した。放置後、試料の表裏をそれぞれ熱処理前の試料を基準とし分光測色計にて測色し、染色織物面ファスナーの表面の濃度（表６）と表面と裏面の色差ΔＥ（表７）を求めた。表６の測定濃度および表７の測定ΔＥはそれぞれ３回の測定の平均である。
Figure JPOXMLDOC01-appb-T000006
Figure JPOXMLDOC01-appb-T000007
 Fastness to sublimation under high temperature A ventilation/circulation constant temperature chamber was used. The constant temperature chamber was set to a predetermined temperature (160 to 200° C.), and 30 minutes after reaching the set temperature, the sample was placed in the constant temperature chamber and left for 24 hours. After standing, the front and back of the sample are measured with a spectrophotometer using the sample before heat treatment as a reference, and the density of the surface of the dyed fabric hook-and-loop fastener (Table 6) and the color difference ΔE between the front and back surfaces (Table 7) are obtained. rice field. The measured densities in Table 6 and the measured ΔE in Table 7 are each an average of three measurements.
Figure JPOXMLDOC01-appb-T000006
Figure JPOXMLDOC01-appb-T000007
　表６と７から、本発明の染色織物面ファスナーの表面と裏面は高温化での昇華堅牢度に優れていることが分かる。 From Tables 6 and 7, it can be seen that the surface and back surfaces of the dyed fabric hook-and-loop fastener of the present invention are excellent in sublimation fastness at high temperatures.

Claims (9)

  1. 　経糸と緯糸からなる織物製基布および該基布の一方の表面から立ち上がる多数の係合素子からなり、
    　前記係合素子はループ係合素子、フック係合素子またはその双方であり、
    　前記フック係合素子は前記基布に経糸と平行に織り込まれたフック係合素子用糸から形成され、
    　前記ループ係合素子は前記基布に経糸と平行に織り込まれたループ係合素子用糸から形成され、
    　前記経糸はポリエチレンテレフタレート系ポリエステルからなり、
    　前記フック係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
    　前記ループ係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
    　前記緯糸は、熱融着性低融点ポリエステル樹脂を鞘成分、ポリエチレンテレフタレート系ポリエステルを芯成分とする芯鞘型熱融着性繊維からなり、
    　前記係合素子の根元が溶融した鞘成分に融着し、前記基布に固定されており、
    　前記経糸、緯糸の鞘成分と芯成分および係合素子が分散染料により染色されており、さらに
    　以下の条件（１）～（３）を満足している染色織物面ファスナー。
    （１）前記芯鞘型熱融着性繊維の芯成分内部に分散染料が存在していること、
    （２）前記フック係合素子の破断伸度が２７～４１％であること、
    （３）前記ループ係合素子の破断伸度が３５～４５％であること。     Consists of a textile base fabric made of warp and weft and a large number of engaging elements rising from one surface of the base fabric,
    the engagement element is a loop engagement element, a hook engagement element or both;
    The hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
    The loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
    The warp is made of polyethylene terephthalate-based polyester,
    The thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
    The thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
    The weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
    The base of the engaging element is fused to the melted sheath component and fixed to the base fabric,
    A dyed fabric hook-and-loop fastener, wherein the sheath component, the core component and the engaging element of the warp and weft are dyed with a disperse dye, and further satisfies the following conditions (1) to (3).
    (1) that a disperse dye is present inside the core component of the core-sheath type heat-fusible fiber;
    (2) the hook engaging element has a breaking elongation of 27 to 41%;
    (3) The breaking elongation of the loop engaging element is 35 to 45%.
  2. 　前記フック係合素子の破断伸度が２７～３８％である、請求項１に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to claim 1, wherein the hook engaging element has a breaking elongation of 27 to 38%.
  3. 　前記ループ係合素子の破断伸度が３５～４０％である、請求項１又は２に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to claim 1 or 2, wherein the loop engaging element has a breaking elongation of 35 to 40%.
  4. 　前記係合素子がフック係合素子であり、その係合素子の結晶化度が６２～７２％である請求項１～３のいずれか１項に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to any one of claims 1 to 3, wherein the engaging elements are hook engaging elements, and the degree of crystallinity of the engaging elements is 62 to 72%.
  5. 　前記係合素子がフック係合素子であり、その係合素子の破断強度が４．２９～４．４７ｃＮ／ｄｔｅｘである請求項１～４のいずれか１項に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to any one of claims 1 to 4, wherein the engaging elements are hook engaging elements, and the breaking strength of the engaging elements is 4.29 to 4.47 cN/dtex.
  6. 　前記係合素子がループ係合素子であり、その係合素子の結晶化度が７５～８７％である請求項１～３のいずれか１項に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to any one of claims 1 to 3, wherein the engaging element is a loop engaging element, and the degree of crystallinity of the engaging element is 75 to 87%.
  7. 　前記係合素子がループ係合素子であり、その係合素子の破断強度が２．０１～２．０７ｃＮ／ｄｔｅｘである請求項１～３及び６のいずれか１項に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to any one of claims 1 to 3 and 6, wherein the engaging element is a loop engaging element, and the breaking strength of the engaging element is 2.01 to 2.07 cN/dtex. .
  8. 　前記芯鞘複合繊維の鞘成分（熱融着部）の透過率が７０％以下である請求項１～７のいずれか１項に記載の染色織物面ファスナー。 The dyed fabric hook-and-loop fastener according to any one of claims 1 to 7, wherein the transmittance of the sheath component (heat-sealed portion) of the core-sheath composite fiber is 70% or less.
  9. 　経糸と緯糸からなる織物製基布および該基布の一方の表面から立ち上がる多数の係合素子からなり、
    　前記係合素子はループ係合素子、フック係合素子またはその双方であり、
    　前記フック係合素子は前記基布に経糸と平行に織り込まれたフック係合素子用糸から形成され、
    　前記ループ係合素子は前記基布に経糸と平行に織り込まれたループ係合素子用糸から形成され、
    　前記経糸はポリエチレンテレフタレート系ポリエステルからなり、
    　前記フック係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
    　前記ループ係合素子用糸はポリエチレンテレフタレート系ポリエステルまたはポリブチレンテレフタレート系ポリエステルからなり、
    　前記緯糸は、熱融着性低融点ポリエステル樹脂を鞘成分、ポリエチレンテレフタレート系ポリエステルを芯成分とする芯鞘型熱融着性繊維からなり、
    　前記係合素子の根元が溶融した鞘成分に融着し、前記基布に固定されている
    織物面ファスナーを超臨界ＣＯ２中で分散染料を用いて染色する織物面ファスナーの染色法。
          Consists of a textile base fabric made of warp and weft and a large number of engaging elements rising from one surface of the base fabric,
    the engagement element is a loop engagement element, a hook engagement element or both;
    The hook engaging elements are formed of hook engaging element threads woven into the base fabric in parallel with the warp threads,
    The loop engaging elements are formed of yarns for loop engaging elements woven into the base fabric in parallel with the warp yarns,
    The warp is made of polyethylene terephthalate-based polyester,
    The thread for the hook engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
    The thread for the loop engaging element is made of polyethylene terephthalate-based polyester or polybutylene terephthalate-based polyester,
    The weft consists of core-sheath type heat-fusible fibers having a heat-fusible low melting point polyester resin as a sheath component and a polyethylene terephthalate-based polyester as a core component,
    A method of dyeing a woven fabric hook-and-loop fastener in which the base of the engaging element is fused to the melted sheath component and the fabric hook-and-loop fastener fixed to the base fabric is dyed using a disperse dye in supercritical CO2 .
PCT/JP2022/030236 2021-08-11 2022-08-08 Dyed textile hook-and-loop fastener and method for dyeing textile hook-and-loop fastener WO2023017802A1 (en)

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CN202280055047.0A CN117794418A (en) 2021-08-11 2022-08-08 Dyed fabric fastening tape and dyeing method of fabric fastening tape

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002363869A (en) * 2001-06-04 2002-12-18 Asahi Kasei Corp Method of dyeing textile product
JP2014027989A (en) * 2012-07-31 2014-02-13 Kuraray Fastening Co Ltd Hook-and-loop fastener with ear
WO2020153160A1 (en) * 2019-01-23 2020-07-30 クラレファスニング株式会社 Fabric-based hook-and-loop fastener

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002363869A (en) * 2001-06-04 2002-12-18 Asahi Kasei Corp Method of dyeing textile product
JP2014027989A (en) * 2012-07-31 2014-02-13 Kuraray Fastening Co Ltd Hook-and-loop fastener with ear
WO2020153160A1 (en) * 2019-01-23 2020-07-30 クラレファスニング株式会社 Fabric-based hook-and-loop fastener

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CN117794418A (en) 2024-03-29

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