WO2022004208A1 - Fiber structure and method for manufacturing same - Google Patents

Fiber structure and method for manufacturing same Download PDF

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Publication number
WO2022004208A1
WO2022004208A1 PCT/JP2021/020188 JP2021020188W WO2022004208A1 WO 2022004208 A1 WO2022004208 A1 WO 2022004208A1 JP 2021020188 W JP2021020188 W JP 2021020188W WO 2022004208 A1 WO2022004208 A1 WO 2022004208A1
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WIPO (PCT)
Prior art keywords
fiber structure
polyester
fiber
hydrophilic
water
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PCT/JP2021/020188
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French (fr)
Japanese (ja)
Inventor
小林知世
白石篤史
藤田伸介
村岡奈緒
芳賀宏二郎
Original Assignee
美津濃株式会社
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Application filed by 美津濃株式会社 filed Critical 美津濃株式会社
Priority to CN202180010144.3A priority Critical patent/CN115003877A/en
Priority to EP21832998.5A priority patent/EP4060115A4/en
Priority to US17/786,285 priority patent/US20230032732A1/en
Priority to KR1020227020385A priority patent/KR20220097523A/en
Publication of WO2022004208A1 publication Critical patent/WO2022004208A1/en

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/507—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/46—Compounds containing quaternary nitrogen atoms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
    • D06P1/5271—Polyesters; Polycarbonates; Alkyd resins
    • 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
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/54—Polyesters using dispersed dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/13—Physical properties anti-allergenic or anti-bacterial

Definitions

  • the present invention relates to a fiber structure having high antifouling property, water absorption, diffusivity, etc. and a method for producing the same.
  • Polyester fiber is a hydrophobic fiber, and as it is, it has poor antifouling property, water absorption, and diffusivity, and clothes using this fiber have a problem that it is not comfortable to wear. For this reason, various proposals have been made so far.
  • Patent Document 1 proposes applying a hydrophilic polymer processing agent to a fiber structure containing a polyester fiber and curing it with a metal salt catalyst.
  • Patent Document 2 proposes applying a hydrophilic oil-repellent polymer processing agent to a fiber structure containing polyester fibers and curing the fiber structure with a metal catalyst.
  • Patent Document 3 proposes to apply a hydrophilic polymer processing agent and a bacteriostatic agent to a fiber structure containing polyester fibers and cure them with low temperature plasma.
  • the present invention provides a fiber structure that does not require curing (curing), maintains a good texture, and has high stain resistance, water absorption, diffusivity, etc., in order to solve the above-mentioned conventional problems.
  • the fiber structure of the present invention is a fiber structure containing a polyester fiber, and at least a part of the hydrophilic polyester resin processing agent molecule is absorbed in at least a part of the polyester fiber, and the remainder is the polyester fiber.
  • the surface is coated and made hydrophilic, and the fiber structure is:
  • Antifouling property Apply 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1 and leave it for 24 hours.
  • JIS L 0805: 2005 is 4th grade or higher
  • Water absorption: Drop method (JIS L 1907: 2004) is 10 seconds or less
  • Diffusivity: Diffusible residual water content test (ISO 17617 A-1 method mutatis mutandis) (0.6 mL of water dropped)) is characterized by being within 55 minutes.
  • the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the processing agent molecules is formed in at least a part of the polyester fiber. Is absorbed, and the residue is characterized by coating the surface of the polyester fiber to make it hydrophilic.
  • the fiber structure of the present invention is a fiber structure containing a polyester fiber, and at least a part of the hydrophilic polyester resin processing agent molecule is absorbed in at least a part of the polyester fiber, and the remainder is the polyester fiber. Since the surface is coated and made hydrophilic, curing (curing) is not required, and it is possible to provide a fiber structure having good texture and high antifouling property, water absorption, diffusivity and the like. Further, when an antibacterial agent is used in combination, the surface of the fiber structure is covered with at least a part of the hydrophilic polyester resin processing agent, and the antibacterial agent adheres to the surface of the polyester-based processing agent and / or at least one in the polyester fiber.
  • the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the polyester fibers is covered with at least the processing agent molecules.
  • the fiber structure of the present invention can be efficiently and rationally produced by absorbing a part of the fiber and coating the residue on the surface of the polyester fiber to make it hydrophilic.
  • FIG. 1 is a schematic view showing a state in which at least a part of a hydrophilic polyester resin processing agent molecule is absorbed in a part of the polyester fiber of one embodiment of the present invention, and the remainder is coated on the surface of the polyester fiber to be hydrophilic. It is a cross-sectional explanatory view.
  • FIG. 2 is a schematic cross-sectional explanatory view showing a state in which the antibacterial agent of another embodiment of the present invention is adhered to the surface of the polyester-based processing agent.
  • FIG. 3 is a schematic cross-sectional explanatory view showing a state in which the antibacterial agent of still another embodiment of the present invention is absorbed inside the polyester fiber.
  • the hydrophilic polyester resin processing agent used in the present invention has the same function as the disperse dye, and at least a part of the processing agent is absorbed (absorption diffusion) in the polyester fiber.
  • This hydrophilic polyester resin processing agent is, for example, a linear copolymer in which a polyester group and a terminal group of a hydrophilic group are bonded to each other. It is preferably a block copolymer.
  • the molecular weight is preferably 5000 to 8000, more preferably 6000 to 7000.
  • the weight ratio of the polyester group to the hydrophilic group is preferably 90/10 to 10/90, more preferably 60/40 to 20/80.
  • hydrophilic group examples include polyethylene glycol, 5-sulfoisophthalic acid-sodium, trimellitic anhydride and the like, and polyethylene glycol is more preferable.
  • a processing agent there is a product number KMZ-902 manufactured by Takamatsu Oil & Fat Co., Ltd.
  • a fiber structure containing polyester fibers When a fiber structure containing polyester fibers is immersed and heat-treated in an aqueous solution containing a hydrophilic polyester resin processing agent, at least a part of the polyester fibers, for example, an amorphous portion, has a polyester base portion of the hydrophilic polyester resin processing agent molecule. At least a part of the polyester fiber is absorbed, and the surface of the polyester fiber is coated with the hydrophilic group of the molecule to make it hydrophilic.
  • the immersion heat treatment increases the size of the pores present in the amorphous portion of the polyester fiber at a temperature above the glass transition point, and at least a part of the polyester group enters the pores.
  • the molecular weight of the two monomers (dimers) that are the base of the polyester group that can enter the pores of the amorphous portion of the polyester fiber is 200 to 1000, more preferably 250 to 800.
  • the polyester group is a polymer in which a large number of monomers such as polyethylene terephthalate are bonded, but since it forms a three-dimensional shape rather than a straight line, it is suitable for determining whether the size of the molecular weight of the dimer can enter the pores. ing. When it is smaller than 200, the size of the dimer that is the base of the polyester group is smaller than the pores of the amorphous portion, and the polyester group is easily removed from the pores of the amorphous portion of the polyester fiber, and the durability is weakened.
  • the dimer that is the base of the polyester group is larger than that, so that the inside of the pores in the amorphous part is larger. Does not enter. That is, since it is a hydrophilic polyester resin processing agent having a polyester group having a preferable molecular weight, curing (curing) such as a curing catalyst, an electron beam, and plasma irradiation is unnecessary. Thereby, it is possible to provide a fiber structure having good texture, high durability, antifouling property, water absorption, diffusivity and the like.
  • the fiber structure has the following properties.
  • Antifouling property Apply 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1 and leave it for 24 hours. JIS L 0805: 2005) is grade 4 or higher, preferably grade 4-5.
  • Water absorption The dropping method (JIS L 1907: 2004) is 10 seconds or less, preferably 5 seconds or less, more preferably 3 seconds or less, still more preferably 1 second or less.
  • Diffusivity The diffusible residual moisture content test (ISO 17617 A-1 method mutatis mutandis (0.6 mL of water dropped)) is within 55 minutes, preferably within 55 minutes for knitting and within 45 minutes for woven fabrics.
  • the fiber structure has the following properties.
  • Antifouling property By making the surface of the fiber structure hydrophilic, the affinity with mud stains, which are oily stains, becomes small, and the contact area becomes small. Therefore, the rolling-up phenomenon when washing with water is likely to occur, and mud stains are easily removed.
  • the affinity between the water and the fiber structure when washed with water increases, and water easily enters between the mud stain and the fiber structure to remove the mud stain. It's easy.
  • Water absorption By making the surface of the fiber structure hydrophilic, the affinity between the fiber structure and water is increased, and the water absorption is increased.
  • the fiber structure further has antibacterial properties: the antibacterial activity value measured based on the antibacterial property test (JIS L 1902: 2015) is preferably 2.2 or more, more preferably 3 or more, still more preferably 3.5 or more. be.
  • the antibacterial agent that can be used in the present invention is silver-based, silver-ion-based, zinc (zinc) -based, silane (silicon) -based, quaternary ammonium ion salt-based, biguanide-based, and the like.
  • Antibacterial agents such as zinc (zinc) -based, silane (silicon) -based, quaternary ammonium ion salt-based, and biguanide-based are hydrophilic because they can be adsorbed on polyester fibers by immersion heat treatment without adhesion by a resin binder. Does not impair the antifouling property, water absorption, and diffusivity that are the effects of the polyester resin processing agent.
  • the polyester fiber is immersed and heat-treated, the size of the pores in the amorphous part of the polyester fiber increases at a temperature above the glass transition point, and when at least a part of the polyester group of the hydrophilic polyester resin processing agent enters, the antibacterial agent also acts at the same time. come in.
  • the temperature of the polyester fiber drops below the glass transition point, so that the size of the pores in the amorphous portion is restored, and at least a part of the polyester group and the antibacterial agent are enclosed in the polyester fiber.
  • the molecular weight of the antibacterial agent for binding to the amorphous portion of the polyester fiber is 200 to 1000, more preferably 250 to 800, and those smaller than this range have poor durability and those larger than this range are adsorbed. Hateful.
  • the size of the antibacterial agent is smaller than the pores of the amorphous portion, the antibacterial agent is easily removed from the pores of the amorphous portion of the polyester fiber, and the durability is weakened. Further, when it is larger than 1000, even if the temperature reaches the glass transition point or higher, the antibacterial agent is larger than the pores in the amorphous portion, so that the antibacterial agent does not enter the pores in the amorphous portion.
  • zinc pyrithione has a molecular weight of about 317, a size that easily binds to the amorphous portion of the polyester fiber, and has good durability.
  • the silver ion antibacterial agent is soluble in the aqueous solution together with the resin.
  • the resin is preferably an acrylic resin.
  • the pH of the aqueous solution is alkaline or acidic.
  • an aqueous solution of ammonia for example, an aqueous solution of ammonia.
  • the silver ion-based antibacterial agent in the aqueous solution has a silver ion amount of 300 ppm or less and 1 ppm or more per fiber weight. It is preferably 200 ppm or less and 10 ppm or more.
  • the resin soluble in the aqueous solution needs to be 600 ppm or less and 2 ppm or more per fiber weight. It is preferably 400 ppm or less and 20 ppm or more.
  • the silver ion antibacterial agent aqueous solution When the silver ion antibacterial agent aqueous solution is heat-treated, ammonia and the like volatilize, and the aqueous solution becomes neutral. When it becomes neutral, the soluble resin polymerizes and adheres to the polyester fiber structure. At that time, since the amount of resin is very small, it adheres sparsely to the polyester fiber structure. Silver ions are supported on the sparsely adhered resin to obtain antibacterial properties. Since the resin is sparsely attached, there is a gap between the antibacterial agent and the antibacterial agent without covering the entire surface of the polyester fiber. Therefore, the antibacterial agent does not impair the antifouling property, water absorption, and diffusivity, which are the effects of the hydrophilic polyester resin processing agent.
  • the silver ion has a small molecular weight of about 47, it is preferable to attach the silver ion to the surface of the fiber structure by a pad treatment rather than a dipping treatment in which the silver ion penetrates into the amorphous portion of the polyester fiber.
  • the molecular weight of the antibacterial agent suitable for the size of the pores in the amorphous portion of the polyester fiber is preferably 200 to 1000, and the silver ion is smaller than 200, so that it can be easily removed from the amorphous portion of the polyester fiber. Durability is weak.
  • the resin is soluble in the silver ion-based antibacterial agent aqueous solution, and the polymerization thereof supports silver ions, which mediates between the polyester fiber and the silver ions to form a bond that enhances durability.
  • at least a part of the silver ion antibacterial agent may be absorbed in the amorphous portion in the polyester fiber.
  • the method of bonding the polyester fiber and the antibacterial agent is bonding with a resin binder such as urethane or silicon.
  • the conventional silver-based antibacterial agent has a silver metal amount of 7,000 ppm or less and 1000 ppm or more per fiber weight.
  • the resin binder was insoluble in an aqueous solution and required 1000 ppm or more per fiber weight.
  • the conventional antibacterial agent tends to inhibit the antifouling property, water absorption, and diffusivity which are the effects of the hydrophilic polyester resin processing agent.
  • the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the processing agent is absorbed in at least a part of the polyester fiber.
  • the residue is coated on the surface of the polyester fiber to make it hydrophilic.
  • the fiber structure is immersed in an aqueous solution containing a hydrophilic polyester resin processing agent, heated from room temperature, heat-treated at a temperature of 110 to 135 ° C. and a time of 20 to 120 minutes, cooled, and washed with water. Is preferable. After washing with water, heat is applied to set the width-out processing, which can be performed according to a conventional method.
  • the fiber structure is subjected to the same bath treatment by adding an antibacterial agent at the time of immersion heat treatment in an aqueous solution containing a hydrophilic polyester resin processing agent (same bath treatment).
  • the fiber structure is immersed and heat-treated in an aqueous solution containing a hydrophilic polyester resin processing agent, and then the aqueous solution containing an antibacterial agent is pad-treated and heat-treated (sequential treatment).
  • the antibacterial agent is retained by the hydrophilic polyester resin processing agent, and durable antibacterial properties can be obtained.
  • FIG. 1 is a schematic cross-sectional explanatory view showing a state in which a hydrophilic polyester resin processing agent is absorbed by the polyester fiber according to the embodiment of the present invention. At least a part 2a of the polyester group of the hydrophilic polyester resin processing agent molecule 2 is absorbed in the amorphous portion inside the polyester fiber 1, and the hydrophilic group 2b covers the surface of the polyester fiber 1.
  • a hydrophilic polyester resin processing agent is absorbed by the polyester fiber according to the embodiment of the present invention.
  • At least a part 2a of the polyester group of the hydrophilic polyester resin processing agent molecule 2 is absorbed in the amorphous portion inside the polyester fiber 1, and the hydrophilic group 2b covers the surface of the polyester fiber 1.
  • FIG. 2 is a schematic cross-sectional explanatory view showing a state in which the hydrophilic polyester resin processing agent 2 is absorbed by the polyester fiber 1 of another embodiment of the present invention.
  • the difference from FIG. 1 is that the antibacterial agent 3 is fixed to the hydrophilic group 2b of the hydrophilic polyester resin processing agent molecule 2.
  • This state is obtained by immersing and heat-treating the fiber structure in an aqueous solution containing a hydrophilic polyester resin processing agent, and then pad-treating the aqueous solution containing an antibacterial agent and heat-treating (sequential treatment).
  • FIG. 3 is a schematic cross-sectional explanatory view showing a state in which the hydrophilic polyester resin processing agent is absorbed and diffused into the polyester fiber of yet another embodiment of the present invention.
  • the difference from FIG. 2 is that the antibacterial agent 3 is absorbed inside the polyester fiber 1 together with at least a part of the polyester groups of the hydrophilic polyester resin processing agent molecule 2.
  • This state is obtained by subjecting the fiber structure to the same bath treatment by adding an antibacterial agent during the immersion heat treatment in an aqueous solution containing a hydrophilic polyester resin processing agent.
  • the evaluation method is as follows. ⁇ Mass of knitted fabric (weight)> Measured according to JIS L1096 A method. ⁇ Anti-fouling property> A 10 cm x 10 cm fiber structure is coated with 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1, left for 24 hours, washed by 103 method (JIS L 0217: 1995), and grayscale after drying. Judgment is made by judgment (JIS L 0805: 2005). It is divided into 10 stages from 1st to 5th grade, and the higher the grade, the better the antifouling property.
  • Example 1 Knitting polyester (PET) multifilament yarn (total fineness 40D (D is denier), number of filaments 36, usage ratio 5% by weight, total fineness 50D, number of filaments 72, usage ratio 60%, total fineness 60D, filament
  • a knit was knitted with a circular knitting machine using 48 yarns and a usage ratio of 35% by weight.
  • the mass (weight) of the obtained knitted fabric was 80 g / m 2 .
  • Hydrophilic processing (1) Chemicals used ⁇ Hydrophilic polyester resin: Made by Takamatsu Oil & Fat Co., Ltd., product number KMZ-902 is 5% owf (abbreviation of on the weight of fiber) -Antibacterial agent: Commercially available zinc pyrithione compound 1% owf (2) Treatment conditions (same bath treatment) The knitted fabric is immersed in an aqueous solution containing the chemical, heated from room temperature to 130 ° C. at 2 ° C./min, treated at 130 ° C. for 60 minutes, cooled, washed with water, dried, and laid out heat set. did. The results are summarized later in Table 1.
  • Example 2 1 Knitting polyester (PET) multifilament yarn (total fineness 40D, number of filaments 36, usage ratio 5% by weight, total fineness 75D, number of filaments 36, usage ratio 74% by weight, total fineness 100D, number of filaments 72, used A knit was knitted on a circular knitting machine using a ratio of 21% by weight). The mass (weight) of the obtained knitted fabric was 120 g / m 2 .
  • Hydrophilic processing (1) Chemicals used ⁇ Hydrophilic polyester resin processing agent: Made by Takamatsu Oil & Fat Co., Ltd., product number KMZ-902 is 5% owf (abbreviation of on the weight of fiber) -Antibacterial agent: Commercially available silver ion compound 3% owf (2) Processing conditions (sequential processing) The knitted fabric was immersed in an aqueous solution in which the hydrophilic polyester resin processing agent was dispersed, heated from room temperature to 130 ° C. at 2 ° C./min, treated at 130 ° C. for 60 minutes, cooled, washed with water, and dried. .. Next, the aqueous solution in which the antibacterial agent was dispersed was pad-treated at a pickup rate of 100%, and heat was applied at 150 ° C. for 120 seconds to set the width-out processing. The results are summarized in Table 1.
  • the treated products of each example had an antifouling property of 4th grade or higher, a water absorption of 10 seconds or less, a diffusivity of 55 minutes or less for knitting, and an antibacterial property of 2.2 or higher, all of which were acceptable. ..
  • the texture was also good and flexible.
  • the fabric of the present invention is suitable not only for innerwear such as sports shirts, T-shirts, inner shirts, briefs, tights, general shirts and briefs, but also for middlewear and outerwear.
  • Polyester fiber 2 Hydrophilic polyester resin processing agent Molecule 2a At least a part of polyester group 2b Hydrophilic group 3 Antibacterial agent

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  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Dispersion Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

This fiber structure includes polyester fibers 1, where at least a portion 2a of hydrophilic polyester resin processing agent molecules 2 is absorbed in at least a portion of the polyester fibers 1, and remainder 2b covers the surface of the polyester fibers 1 for hydrophilization. The fiber structure demonstrates (1) an anti-soiling property in which the gray scale is grade 4 when 200 g of muddy water obtained by mixing standard contaminating dirt and distilled water at a ratio of 1:1 is applied and left to stand for 24 hours, and then washed and dried. The fiber structure also demonstrates (2) water absorbency of no more than 10 seconds when measured by the instillation method. The fiber structure further demonstrates (3) diffusivity of no more than 55 minutes when measured by diffusion residual moisture rate test (distillation of 0.6 mL of water). This configuration eliminates the need for curing, and provides a fiber structure that maintains good texture and has excellent anti-soiling property, water absorbency, diffusivity, etc.

Description

繊維構造物及びその製造方法Fiber structure and its manufacturing method
　本発明は、防汚性、吸水性、拡散性等の高い繊維構造物及びその製造方法に関する。 The present invention relates to a fiber structure having high antifouling property, water absorption, diffusivity, etc. and a method for producing the same.
　ポリエステル繊維は疎水性繊維であり、そのままでは防汚性、吸水性、拡散性が乏しく、この繊維を使った衣服は着用感も悪いという問題がある。このため従来から様々な提案がされてきた。特許文献１には、親水性ポリマー加工剤を、ポリエステル繊維を含む繊維構造物に付与し、金属塩触媒でキュアー（硬化）させることが提案されている。特許文献２には、親水撥油性ポリマー加工剤を、ポリエステル繊維を含む繊維構造物に付与し、金属触媒でキュアーさせることが提案されている。特許文献３には、親水性ポリマー加工剤と制菌剤とをポリエステル繊維を含む繊維構造物に付与し、低温プラズマでキュアーさせることが提案されている。 Polyester fiber is a hydrophobic fiber, and as it is, it has poor antifouling property, water absorption, and diffusivity, and clothes using this fiber have a problem that it is not comfortable to wear. For this reason, various proposals have been made so far. Patent Document 1 proposes applying a hydrophilic polymer processing agent to a fiber structure containing a polyester fiber and curing it with a metal salt catalyst. Patent Document 2 proposes applying a hydrophilic oil-repellent polymer processing agent to a fiber structure containing polyester fibers and curing the fiber structure with a metal catalyst. Patent Document 3 proposes to apply a hydrophilic polymer processing agent and a bacteriostatic agent to a fiber structure containing polyester fibers and cure them with low temperature plasma.
特開２０１３－０７２１６４号公報Japanese Unexamined Patent Publication No. 2013-072164 特開２０１２－０１２７１８号公報Japanese Unexamined Patent Publication No. 2012-02218 特開２０１０－１２１２３０号公報Japanese Unexamined Patent Publication No. 2010-12230
　しかし、前記従来技術は、ポリエステル繊維を含む繊維構造物に加工剤を付与した後、いずれも触媒、プラズマ等によりキュアー（硬化）することが必要であり、風合いは硬くなり、防汚性、吸水性、拡散性等を十分に発揮させることはできなかった。 However, in the above-mentioned prior art, after applying a processing agent to a fiber structure containing polyester fiber, it is necessary to cure (cure) with a catalyst, plasma, or the like, and the texture becomes hard, antifouling property, and water absorption. It was not possible to fully exhibit the sex and diffusivity.
　本発明は、前記従来の問題を解決するため、キュアー（硬化）は不要であり、風合いを良好に保ち、防汚性、吸水性、拡散性等が共に高い繊維構造物を提供する。 The present invention provides a fiber structure that does not require curing (curing), maintains a good texture, and has high stain resistance, water absorption, diffusivity, etc., in order to solve the above-mentioned conventional problems.
　本発明の繊維構造物は、ポリエステル繊維を含む繊維構造物であって、前記ポリエステル繊維内の少なくとも一部には、親水性ポリエステル樹脂加工剤分子の少なくとも一部が吸収され、残余は前記ポリエステル繊維表面を被覆して親水化しており、前記繊維構造物は、
（１）防汚性：標準汚染土砂と蒸留水を１：１で混ぜあわせた２００ｇの泥水を塗り、２４時間放置後、１０３法(JIS L 0217:1995)洗濯、乾燥後のグレースケール判定(JIS L 0805:2005)が４級以上
（２）吸水性：滴下法(JIS L 1907:2004)が１０秒以下
（３）拡散性：拡散性残量水分率試験(ISO 17617 A-1法準用(水0.6mL滴下))が５５分以内
であることを特徴とする。 The fiber structure of the present invention is a fiber structure containing a polyester fiber, and at least a part of the hydrophilic polyester resin processing agent molecule is absorbed in at least a part of the polyester fiber, and the remainder is the polyester fiber. The surface is coated and made hydrophilic, and the fiber structure is:
(1) Antifouling property: Apply 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1 and leave it for 24 hours. JIS L 0805: 2005) is 4th grade or higher (2) Water absorption: Drop method (JIS L 1907: 2004) is 10 seconds or less (3) Diffusivity: Diffusible residual water content test (ISO 17617 A-1 method mutatis mutandis) (0.6 mL of water dropped)) is characterized by being within 55 minutes.
　本発明の繊維構造物の製造方法は、前記繊維構造物を、親水性ポリエステル樹脂加工剤分子を含む水溶液中で浸漬加熱処理し、ポリエステル繊維内の少なくとも一部に前記加工剤分子の少なくとも一部を吸収させ、残余は前記ポリエステル繊維表面を被覆して親水化することを特徴とする。 In the method for producing a fiber structure of the present invention, the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the processing agent molecules is formed in at least a part of the polyester fiber. Is absorbed, and the residue is characterized by coating the surface of the polyester fiber to make it hydrophilic.
　本発明の繊維構造物は、ポリエステル繊維を含む繊維構造物であって、前記ポリエステル繊維内の少なくとも一部には、親水性ポリエステル樹脂加工剤分子の少なくとも一部が吸収され、残余は前記ポリエステル繊維表面を被覆して親水化していることにより、キュアー（硬化）は不要であり、風合いを良好に保ち、防汚性、吸水性、拡散性等が共に高い繊維構造物を提供できる。さらに抗菌剤を併用すると、繊維構造物表面は、親水性ポリエステル樹脂加工剤の少なくとも一部で被覆され、抗菌剤がポリエステル系加工剤の表面に固着するか、及び／又はポリエステル繊維内の少なくとも一部に抗菌剤の少なくとも一部が吸収され、耐久性のある抗菌性が得られる。
　また、本発明の繊維構造物の製造方法は、前記繊維構造物を、親水性ポリエステル樹脂加工剤分子を含む水溶液中で浸漬加熱処理し、ポリエステル繊維内の少なくとも一部に前記加工剤分子の少なくとも一部を吸収させ、残余は前記ポリエステル繊維表面を被覆して親水化することにより、本発明の繊維構造物を効率よく合理的に製造できる。 The fiber structure of the present invention is a fiber structure containing a polyester fiber, and at least a part of the hydrophilic polyester resin processing agent molecule is absorbed in at least a part of the polyester fiber, and the remainder is the polyester fiber. Since the surface is coated and made hydrophilic, curing (curing) is not required, and it is possible to provide a fiber structure having good texture and high antifouling property, water absorption, diffusivity and the like. Further, when an antibacterial agent is used in combination, the surface of the fiber structure is covered with at least a part of the hydrophilic polyester resin processing agent, and the antibacterial agent adheres to the surface of the polyester-based processing agent and / or at least one in the polyester fiber. At least a part of the antibacterial agent is absorbed in the portion, and durable antibacterial property is obtained.
Further, in the method for producing a fiber structure of the present invention, the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the polyester fibers is covered with at least the processing agent molecules. The fiber structure of the present invention can be efficiently and rationally produced by absorbing a part of the fiber and coating the residue on the surface of the polyester fiber to make it hydrophilic.
図１は本発明の一実施形態のポリエステル繊維内の一部に親水性ポリエステル樹脂加工剤分子の少なくとも一部が吸収され、残余はポリエステル繊維表面を被覆して親水化している状態を示す模式的断面説明図である。FIG. 1 is a schematic view showing a state in which at least a part of a hydrophilic polyester resin processing agent molecule is absorbed in a part of the polyester fiber of one embodiment of the present invention, and the remainder is coated on the surface of the polyester fiber to be hydrophilic. It is a cross-sectional explanatory view. 図２は本発明の別の実施形態の抗菌剤がポリエステル系加工剤の表面に固着している状態を示す模式的断面説明図である。FIG. 2 is a schematic cross-sectional explanatory view showing a state in which the antibacterial agent of another embodiment of the present invention is adhered to the surface of the polyester-based processing agent. 図３は本発明のさらに別の実施形態の抗菌剤がポリエステル繊維内部に吸収している状態を示す模式的断面説明図である。FIG. 3 is a schematic cross-sectional explanatory view showing a state in which the antibacterial agent of still another embodiment of the present invention is absorbed inside the polyester fiber.
　本発明で使用する親水性ポリエステル樹脂加工剤は、分散染料と同様な機能により、ポリエステル繊維内に、前記加工剤の少なくとも一部が吸収(吸尽拡散)する。この親水性ポリエステル樹脂加工剤は、一例として、直鎖状で、ポリエステル基と親水性基の末端基同士が結合している共重合体である。好ましくはブロック共重合体である。分子量は５０００～８０００が好ましく、より好ましくは６０００～７０００である。ポリエステル基と親水性基の重量割合は、９０/１０～１０/９０が好ましく、より好ましくは６０／４０～２０/８０である。親水性基としては、ポリエチレングリコール、５－スルホイソフタル酸-ナトリウム、無水トリメリット酸等があり、ポリエチレングリコールがより好ましい。このような加工剤としては、高松油脂社製、商品番号ＫＭＺ－９０２がある。 The hydrophilic polyester resin processing agent used in the present invention has the same function as the disperse dye, and at least a part of the processing agent is absorbed (absorption diffusion) in the polyester fiber. This hydrophilic polyester resin processing agent is, for example, a linear copolymer in which a polyester group and a terminal group of a hydrophilic group are bonded to each other. It is preferably a block copolymer. The molecular weight is preferably 5000 to 8000, more preferably 6000 to 7000. The weight ratio of the polyester group to the hydrophilic group is preferably 90/10 to 10/90, more preferably 60/40 to 20/80. Examples of the hydrophilic group include polyethylene glycol, 5-sulfoisophthalic acid-sodium, trimellitic anhydride and the like, and polyethylene glycol is more preferable. As such a processing agent, there is a product number KMZ-902 manufactured by Takamatsu Oil & Fat Co., Ltd.
　親水性ポリエステル樹脂加工剤を含む水溶液中でポリエステル繊維を含む繊維構造物を浸漬加熱処理すると、ポリエステル繊維内の少なくとも一部、例えば非晶部には、親水性ポリエステル樹脂加工剤分子のポリエステル基部分の少なくとも一部が吸収され、ポリエステル繊維の表面は前記分子の親水性基で被覆され親水化される。浸漬加熱処理によりガラス転移点以上の温度でポリエステル繊維の非晶部に存在する孔のサイズが大きくなり、ポリエステル基の少なくとも一部が孔に入り込む。浸漬加熱処理後、ポリエステル繊維の温度がガラス転移点以下に低下することで、非晶部の孔のサイズが元に戻り、ポリエステル基の少なくとも一部がポリエステル繊維に封じ込められる。この仕組みにより、非常に強固な結合であるが、風合いはソフトで、機能性を阻害しない形態となる。ポリエステル繊維の非晶部の孔に入り込むことができるポリエステル基のベースとなる単量体２つ分（二量体）の分子量は２００～１０００で、より好ましくは２５０～８００である。ポリエステル基はポリエチレンテレフタレートなどの単量体が多数結合した重合体であるが、直線ではなく、立体形状を形成しているため、二量体の分子量の大きさが孔に入り込めるかの判断に適している。２００より小さい場合、ポリエステル基のベースとなる二量体のサイズが非晶部の孔より小さく、ポリエステル基がポリエステル繊維の非晶部の孔より容易に抜けやすくなり、耐久性が弱くなる。また、１０００より大きい場合、ガラス転移点以上の温度で、非晶部の孔のサイズが大きくなっても、それよりポリエステル基のベースとなる二量体が大きいため、非晶部の孔の中に入らない。すなわち、好ましい分子量のポリエステル基をもつ親水性ポリエステル樹脂加工剤であるため、硬化触媒、電子線、プラズマ照射などのキュアー（硬化）は不要である。これにより、風合いを良好に保ち、耐久性の高い防汚性、吸水性、拡散性等が共に高い繊維構造物を提供できる。 When a fiber structure containing polyester fibers is immersed and heat-treated in an aqueous solution containing a hydrophilic polyester resin processing agent, at least a part of the polyester fibers, for example, an amorphous portion, has a polyester base portion of the hydrophilic polyester resin processing agent molecule. At least a part of the polyester fiber is absorbed, and the surface of the polyester fiber is coated with the hydrophilic group of the molecule to make it hydrophilic. The immersion heat treatment increases the size of the pores present in the amorphous portion of the polyester fiber at a temperature above the glass transition point, and at least a part of the polyester group enters the pores. After the immersion heat treatment, the temperature of the polyester fiber drops below the glass transition point, so that the size of the pores in the amorphous portion is restored and at least a part of the polyester group is contained in the polyester fiber. By this mechanism, the bond is very strong, but the texture is soft and the form does not impair the functionality. The molecular weight of the two monomers (dimers) that are the base of the polyester group that can enter the pores of the amorphous portion of the polyester fiber is 200 to 1000, more preferably 250 to 800. The polyester group is a polymer in which a large number of monomers such as polyethylene terephthalate are bonded, but since it forms a three-dimensional shape rather than a straight line, it is suitable for determining whether the size of the molecular weight of the dimer can enter the pores. ing. When it is smaller than 200, the size of the dimer that is the base of the polyester group is smaller than the pores of the amorphous portion, and the polyester group is easily removed from the pores of the amorphous portion of the polyester fiber, and the durability is weakened. If it is larger than 1000, even if the size of the pores in the amorphous part becomes larger at a temperature above the glass transition point, the dimer that is the base of the polyester group is larger than that, so that the inside of the pores in the amorphous part is larger. Does not enter. That is, since it is a hydrophilic polyester resin processing agent having a polyester group having a preferable molecular weight, curing (curing) such as a curing catalyst, an electron beam, and plasma irradiation is unnecessary. Thereby, it is possible to provide a fiber structure having good texture, high durability, antifouling property, water absorption, diffusivity and the like.
　繊維構造物は、下記の性質を有する。
（１）防汚性：標準汚染土砂と蒸留水を１：１で混ぜあわせた２００ｇの泥水を塗り、２４時間放置後、１０３法(JIS L 0217:1995)洗濯、乾燥後のグレースケール判定(JIS L 0805:2005)が４級以上、好ましくは４‐５級である。
（２）吸水性：滴下法(JIS L 1907:2004)が１０秒以下、好ましくは５秒以下、より好ましくは３秒以下、さらに好ましくは、1秒以下である。
（３）拡散性：拡散性残量水分率試験(ISO 17617 A-1法準用(水0.6mL滴下))が５５分以内、好ましくは編物が５５分以内、織物が４５分以内である。 The fiber structure has the following properties.
(1) Antifouling property: Apply 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1 and leave it for 24 hours. JIS L 0805: 2005) is grade 4 or higher, preferably grade 4-5.
(2) Water absorption: The dropping method (JIS L 1907: 2004) is 10 seconds or less, preferably 5 seconds or less, more preferably 3 seconds or less, still more preferably 1 second or less.
(3) Diffusivity: The diffusible residual moisture content test (ISO 17617 A-1 method mutatis mutandis (0.6 mL of water dropped)) is within 55 minutes, preferably within 55 minutes for knitting and within 45 minutes for woven fabrics.
　繊維構造物が、下記性質を有する理由は下記である。
（１）防汚性：繊維構造物の表面が親水化されることにより、油性汚れである泥汚れとの親和性が小さくなり、接触面積小さくなる。そのため、水洗いをした際のローリングアップ現象が起きやすくなり、泥汚れが落ちやすくなる。また、繊維構造物の表面が親水化されることで、水洗いした際の水と繊維構造物が親和性を増し、泥汚れと繊維構造物の間に容易に、水が入り込み、泥汚れを落としやすくしている。
（２）吸水性：繊維構造物の表面が親水化されることで、繊維構造物と水の親和性が大きくなり、吸水性を増している。
（３）拡散性：繊維構造物の表面が親水化されることで、繊維構造物と水の親和性が大きくなり、吸水性を増している。そのため、繊維構造物の水平方向にも拡散性が増している。拡散性が増すことで、水の蒸発量が増え、繊維構造物の速乾性も増している。 The reason why the fiber structure has the following properties is as follows.
(1) Antifouling property: By making the surface of the fiber structure hydrophilic, the affinity with mud stains, which are oily stains, becomes small, and the contact area becomes small. Therefore, the rolling-up phenomenon when washing with water is likely to occur, and mud stains are easily removed. In addition, by making the surface of the fiber structure hydrophilic, the affinity between the water and the fiber structure when washed with water increases, and water easily enters between the mud stain and the fiber structure to remove the mud stain. It's easy.
(2) Water absorption: By making the surface of the fiber structure hydrophilic, the affinity between the fiber structure and water is increased, and the water absorption is increased.
(3) Diffusibility: By making the surface of the fiber structure hydrophilic, the affinity between the fiber structure and water is increased, and the water absorption is increased. Therefore, the diffusivity is also increased in the horizontal direction of the fiber structure. By increasing the diffusivity, the amount of water evaporation increases, and the quick-drying property of the fiber structure also increases.
　繊維構造物は、さらに抗菌性：抗菌性試験(JIS L 1902:2015)に基づいて測定される抗菌活性値は２．２以上が好ましく、より好ましくは３以上、さらに好ましくは３．５以上である。本発明で使用できる抗菌剤は、銀系、銀イオン系、ジンク（亜鉛）系、シラン（ケイ素）系、第４級アンモニウムイオン塩系、ビグアナイド系等である。 The fiber structure further has antibacterial properties: the antibacterial activity value measured based on the antibacterial property test (JIS L 1902: 2015) is preferably 2.2 or more, more preferably 3 or more, still more preferably 3.5 or more. be. The antibacterial agent that can be used in the present invention is silver-based, silver-ion-based, zinc (zinc) -based, silane (silicon) -based, quaternary ammonium ion salt-based, biguanide-based, and the like.
　ジンク（亜鉛）系、シラン（ケイ素）系、第４級アンモニウムイオン塩系、ビグアナイド系等の抗菌剤は、樹脂バインダーによる接着によらず、浸漬加熱処理することによってポリエステル繊維に吸着できるため、親水性ポリエステル樹脂加工剤の効果である防汚性、吸水性、拡散性を阻害しない。ポリエステル繊維を浸漬加熱処理した際、ガラス転移点以上の温度でポリエステル繊維の非晶部の孔のサイズが大きくなり、親水ポリエステル樹脂加工剤のポリエステル基の少なくとも一部が入り込む際、同時に抗菌剤も入る。浸漬加熱処理後、ポリエステル繊維の温度がガラス転移点以下に低下することで、非晶部の孔のサイズが元に戻り、ポリエステル基の少なくとも一部と抗菌剤がポリエステル繊維に封じ込められる。非晶部の孔の中にポリエステル基の少なくとも一部と抗菌剤が入り込むことにより、ポリエステル基の結合をより高めながらも、抗菌剤の結合も高まる。また、ポリエステル繊維の非晶部に結合するための抗菌剤の分子量は、２００～１０００で、より好ましくは２５０～８００であり、この範囲よりも小さいものは耐久性が悪く、大きいものは吸着しにくい。２００より小さい場合、抗菌剤のサイズが非晶部の孔より小さく、抗菌剤がポリエステル繊維の非晶部の孔より容易に抜けやすくなり、耐久性が弱くなる。また、１０００より大きい場合、ガラス転移点以上の温度になっても、非晶部の孔より抗菌剤が大きいため、非晶部の孔に入らない。例えばジンクピリチオンの分子量は約３１７であり、ポリエステル繊維の非晶部に結合しやすい大きさであり、耐久性が良い。 Antibacterial agents such as zinc (zinc) -based, silane (silicon) -based, quaternary ammonium ion salt-based, and biguanide-based are hydrophilic because they can be adsorbed on polyester fibers by immersion heat treatment without adhesion by a resin binder. Does not impair the antifouling property, water absorption, and diffusivity that are the effects of the polyester resin processing agent. When the polyester fiber is immersed and heat-treated, the size of the pores in the amorphous part of the polyester fiber increases at a temperature above the glass transition point, and when at least a part of the polyester group of the hydrophilic polyester resin processing agent enters, the antibacterial agent also acts at the same time. come in. After the immersion heat treatment, the temperature of the polyester fiber drops below the glass transition point, so that the size of the pores in the amorphous portion is restored, and at least a part of the polyester group and the antibacterial agent are enclosed in the polyester fiber. By allowing at least a part of the polyester group and the antibacterial agent to enter the pores of the amorphous portion, the binding of the antibacterial agent is enhanced while the binding of the polyester group is further enhanced. The molecular weight of the antibacterial agent for binding to the amorphous portion of the polyester fiber is 200 to 1000, more preferably 250 to 800, and those smaller than this range have poor durability and those larger than this range are adsorbed. Hateful. When it is smaller than 200, the size of the antibacterial agent is smaller than the pores of the amorphous portion, the antibacterial agent is easily removed from the pores of the amorphous portion of the polyester fiber, and the durability is weakened. Further, when it is larger than 1000, even if the temperature reaches the glass transition point or higher, the antibacterial agent is larger than the pores in the amorphous portion, so that the antibacterial agent does not enter the pores in the amorphous portion. For example, zinc pyrithione has a molecular weight of about 317, a size that easily binds to the amorphous portion of the polyester fiber, and has good durability.
　銀イオン系抗菌剤は水溶液中に樹脂とともに可溶している。樹脂は、好ましくはアクリル樹脂である。水溶液は、pHがアルカリ性、または酸性になっている。例えば、アンモニア水溶液である。水溶液中の銀イオン系抗菌剤は、銀イオン量が繊維重量あたり３００ppm以下１ppm以上である。好ましくは、２００ppm以下１０ppm以上である。水溶液に可溶している樹脂は、繊維重量あたり６００ppm以下２ppm以上必要である。好ましくは、４００ppm以下２０ppm以上である。銀イオン系抗菌剤水溶液が、熱処理されることで、アンモニア等が揮発し、水溶液が中性となる。中性となると、可溶していた樹脂がポリマー化し、ポリエステル繊維構造物に付着する。その際、樹脂量が微量のため、ポリエステル繊維構造物にまばらに付着する。まばらに付着した樹脂に銀イオンが担持し、抗菌性を得ている。樹脂がまばらに付着していることから、ポリエステル繊維の表面をすべて覆うことなく、抗菌剤と抗菌剤の間に隙間を有している。そのため、抗菌剤が親水性ポリエステル樹脂加工剤の効果である、防汚性、吸水性、拡散性を阻害しない。また、銀イオンは、分子量が約４７と小さいため、ポリエステル繊維の非晶部に入り込ませる浸漬処理よりも、パッド処理で繊維構造物の表面に付着させることが好ましい。理由としては、ポリエステル繊維の非晶部の孔のサイズに適合する抗菌剤の分子量は、２００～１０００が好ましく、銀イオンは２００より小さいので、ポリエステル繊維の非晶部から容易に抜けやすくなり、耐久性が弱い。そのため、銀イオン系抗菌剤水溶液には、樹脂が可溶しており、そのポリマー化によって、銀イオンが担持され、ポリエステル繊維と銀イオンを媒介して、耐久性を高める結合になっている。しかし、ポリエステル繊維内の非晶部には、銀イオン系抗菌剤の少なくとも一部が吸収されていてもよい。一般的に、ポリエステル繊維と抗菌剤の結合の仕方は、ウレタンやシリコン等の樹脂バインダーによる接着である。例えば、従来の銀系抗菌剤は、銀金属量が繊維重量あたり７０００ppm以下１０００ppm以上ある。樹脂バインダーは、水溶液に非可溶で、繊維重量あたり１０００ppm以上が必要であった。この量の樹脂バインダーを加工すると、抗菌剤を付着させる際に、樹脂バインダーで繊維構造物の表面を覆ってしまうことになる。そのため、従来の抗菌剤は、親水性ポリエステル樹脂加工剤の効果である防汚性、吸水性、拡散性を阻害しやすかった。 The silver ion antibacterial agent is soluble in the aqueous solution together with the resin. The resin is preferably an acrylic resin. The pH of the aqueous solution is alkaline or acidic. For example, an aqueous solution of ammonia. The silver ion-based antibacterial agent in the aqueous solution has a silver ion amount of 300 ppm or less and 1 ppm or more per fiber weight. It is preferably 200 ppm or less and 10 ppm or more. The resin soluble in the aqueous solution needs to be 600 ppm or less and 2 ppm or more per fiber weight. It is preferably 400 ppm or less and 20 ppm or more. When the silver ion antibacterial agent aqueous solution is heat-treated, ammonia and the like volatilize, and the aqueous solution becomes neutral. When it becomes neutral, the soluble resin polymerizes and adheres to the polyester fiber structure. At that time, since the amount of resin is very small, it adheres sparsely to the polyester fiber structure. Silver ions are supported on the sparsely adhered resin to obtain antibacterial properties. Since the resin is sparsely attached, there is a gap between the antibacterial agent and the antibacterial agent without covering the entire surface of the polyester fiber. Therefore, the antibacterial agent does not impair the antifouling property, water absorption, and diffusivity, which are the effects of the hydrophilic polyester resin processing agent. Further, since the silver ion has a small molecular weight of about 47, it is preferable to attach the silver ion to the surface of the fiber structure by a pad treatment rather than a dipping treatment in which the silver ion penetrates into the amorphous portion of the polyester fiber. The reason is that the molecular weight of the antibacterial agent suitable for the size of the pores in the amorphous portion of the polyester fiber is preferably 200 to 1000, and the silver ion is smaller than 200, so that it can be easily removed from the amorphous portion of the polyester fiber. Durability is weak. Therefore, the resin is soluble in the silver ion-based antibacterial agent aqueous solution, and the polymerization thereof supports silver ions, which mediates between the polyester fiber and the silver ions to form a bond that enhances durability. However, at least a part of the silver ion antibacterial agent may be absorbed in the amorphous portion in the polyester fiber. Generally, the method of bonding the polyester fiber and the antibacterial agent is bonding with a resin binder such as urethane or silicon. For example, the conventional silver-based antibacterial agent has a silver metal amount of 7,000 ppm or less and 1000 ppm or more per fiber weight. The resin binder was insoluble in an aqueous solution and required 1000 ppm or more per fiber weight. When this amount of resin binder is processed, the surface of the fiber structure is covered with the resin binder when the antibacterial agent is attached. Therefore, the conventional antibacterial agent tends to inhibit the antifouling property, water absorption, and diffusivity which are the effects of the hydrophilic polyester resin processing agent.
　本発明の繊維構造物の製造方法は、繊維構造物を、親水性ポリエステル樹脂加工剤分子を含む水溶液中で浸漬加熱処理し、ポリエステル繊維内の少なくとも一部に前記加工剤の少なくとも一部を吸収させ、残余は前記ポリエステル繊維表面を被覆して親水化する。これにより、風合いを良好に保ち、防汚性、吸水性、拡散性等が共に高い繊維構造物を提供できる。 In the method for producing a fiber structure of the present invention, the fiber structure is immersed and heat-treated in an aqueous solution containing hydrophilic polyester resin processing agent molecules, and at least a part of the processing agent is absorbed in at least a part of the polyester fiber. The residue is coated on the surface of the polyester fiber to make it hydrophilic. Thereby, it is possible to provide a fiber structure having good texture and high antifouling property, water absorption, diffusivity and the like.
　浸漬加熱処理は、親水性ポリエステル樹脂加工剤を含む水溶液中に繊維構造物を浸漬し、常温から昇温し、温度：１１０～１３５℃、時間：２０～１２０分間熱処理し、冷却し、水洗するのが好ましい。水洗した後、熱を加えて幅出し加工セットすることは常法に従って行うことができる。 In the immersion heat treatment, the fiber structure is immersed in an aqueous solution containing a hydrophilic polyester resin processing agent, heated from room temperature, heat-treated at a temperature of 110 to 135 ° C. and a time of 20 to 120 minutes, cooled, and washed with water. Is preferable. After washing with water, heat is applied to set the width-out processing, which can be performed according to a conventional method.
　本発明において、抗菌加工するには次の２つ方法がある。
（１）繊維構造物を、親水性ポリエステル樹脂加工剤を含む水溶液中で浸漬加熱処理の際に、抗菌剤を加えて同浴処理する（同浴処理）。
（２）繊維構造物を、親水性ポリエステル樹脂加工剤を含む水溶液中で浸漬加熱処理した後に、抗菌剤を含む水溶液をパッド処理し、加熱処理する（逐次処理）。
　前記同浴処理又は逐次処理により、抗菌剤は親水性ポリエステル樹脂加工剤に保持され、耐久性のある抗菌性が得られる。 In the present invention, there are the following two methods for antibacterial processing.
(1) The fiber structure is subjected to the same bath treatment by adding an antibacterial agent at the time of immersion heat treatment in an aqueous solution containing a hydrophilic polyester resin processing agent (same bath treatment).
(2) The fiber structure is immersed and heat-treated in an aqueous solution containing a hydrophilic polyester resin processing agent, and then the aqueous solution containing an antibacterial agent is pad-treated and heat-treated (sequential treatment).
By the same bath treatment or sequential treatment, the antibacterial agent is retained by the hydrophilic polyester resin processing agent, and durable antibacterial properties can be obtained.
　浸漬加熱処理の際には、分散染料を加えて同浴処理することもできる。本発明で使用する親水性ポリエステル樹脂加工剤は、分散染料と同様な加熱条件で処理するからである。 At the time of immersion heat treatment, it is also possible to add a disperse dye and perform the same bath treatment. This is because the hydrophilic polyester resin processing agent used in the present invention is treated under the same heating conditions as the disperse dye.
　以下、図面を用いて本発明の好適な一実施形態の被服用編地を説明する。以下の図面において、同一符号は同一物を示す。図１は本発明の一実施形態のポリエステル繊維に親水性ポリエステル樹脂加工剤が吸収している状態を示す模式的断面説明図である。ポリエステル繊維１内部の非晶部に親水性ポリエステル樹脂加工剤分子２のポリエステル基の少なくとも一部２ａが吸収され、親水性基２ｂがポリエステル繊維１の表面を覆っている。これにより、耐久性の高い防汚性、吸水性、拡散性が得られる。 Hereinafter, a knitted fabric for clothing according to a preferred embodiment of the present invention will be described with reference to the drawings. In the drawings below, the same reference numerals indicate the same thing. FIG. 1 is a schematic cross-sectional explanatory view showing a state in which a hydrophilic polyester resin processing agent is absorbed by the polyester fiber according to the embodiment of the present invention. At least a part 2a of the polyester group of the hydrophilic polyester resin processing agent molecule 2 is absorbed in the amorphous portion inside the polyester fiber 1, and the hydrophilic group 2b covers the surface of the polyester fiber 1. As a result, highly durable antifouling property, water absorption, and diffusivity can be obtained.
　図２は本発明の別の実施形態のポリエステル繊維１に親水性ポリエステル樹脂加工剤２が吸収している状態を示す模式的断面説明図である。図１と異なる点は、抗菌剤３が親水性ポリエステル樹脂加工剤分子２の親水性基２ｂに固着されている。この状態は、繊維構造物を、親水性ポリエステル樹脂加工剤を含む水溶液中で浸漬加熱処理した後に、抗菌剤を含む水溶液をパッド処理し、加熱処理する（逐次処理）ことによって得られる。 FIG. 2 is a schematic cross-sectional explanatory view showing a state in which the hydrophilic polyester resin processing agent 2 is absorbed by the polyester fiber 1 of another embodiment of the present invention. The difference from FIG. 1 is that the antibacterial agent 3 is fixed to the hydrophilic group 2b of the hydrophilic polyester resin processing agent molecule 2. This state is obtained by immersing and heat-treating the fiber structure in an aqueous solution containing a hydrophilic polyester resin processing agent, and then pad-treating the aqueous solution containing an antibacterial agent and heat-treating (sequential treatment).
　図３は本発明のさらに別の実施形態のポリエステル繊維に親水性ポリエステル樹脂加工剤が吸尽拡散している状態を示す模式的断面説明図である。図２と異なる点は、抗菌剤３が親水性ポリエステル樹脂加工剤分子２のポリエステル基の少なくとも一部とともにポリエステル繊維１内部に吸収されている。この状態は、繊維構造物を、親水性ポリエステル樹脂加工剤を含む水溶液中で浸漬加熱処理の際に、抗菌剤を加えて同浴処理することによって得られる。 FIG. 3 is a schematic cross-sectional explanatory view showing a state in which the hydrophilic polyester resin processing agent is absorbed and diffused into the polyester fiber of yet another embodiment of the present invention. The difference from FIG. 2 is that the antibacterial agent 3 is absorbed inside the polyester fiber 1 together with at least a part of the polyester groups of the hydrophilic polyester resin processing agent molecule 2. This state is obtained by subjecting the fiber structure to the same bath treatment by adding an antibacterial agent during the immersion heat treatment in an aqueous solution containing a hydrophilic polyester resin processing agent.
　以下実施例を用いてさらに具体的に説明する。なお、本発明は下記の実施例に限定して解釈されるものではない。
　評価方法は次のとおりである。
＜編地の質量（目付）＞
　ＪＩＳ　Ｌ１０９６　Ａ法に準拠して測定した。
＜防汚性＞
　１０ｃｍ×１０ｃｍの繊維構造物に標準汚染土砂と蒸留水を１：１で混ぜあわせた２００ｇの泥水を塗り、２４時間放置後、１０３法(JIS L 0217:1995)洗濯を、乾燥後のグレースケール判定(JIS L 0805:2005)で判定する。１～５級まで１０段階に分かれており、級が高いほど防汚性は優れる。
＜吸水性＞
　滴下法(JIS L 1907:2004)により吸水時間を測定する。
＜拡散性＞
　拡散性残量水分率試験(ISO 17617 A-1法準用(水0.6mL滴下))により測定する。
＜抗菌性＞
　抗菌性試験(JIS L 1902:2015)に基づいて測定される抗菌活性値で判定する。 The following will be described in more detail with reference to Examples. The present invention is not construed as being limited to the following examples.
The evaluation method is as follows.
<Mass of knitted fabric (weight)>
Measured according to JIS L1096 A method.
<Anti-fouling property>
A 10 cm x 10 cm fiber structure is coated with 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1, left for 24 hours, washed by 103 method (JIS L 0217: 1995), and grayscale after drying. Judgment is made by judgment (JIS L 0805: 2005). It is divided into 10 stages from 1st to 5th grade, and the higher the grade, the better the antifouling property.
<Water absorption>
The water absorption time is measured by the dropping method (JIS L 1907: 2004).
<Diffusiveness>
Measure by the diffusible residual moisture content test (ISO 17617 A-1 method mutatis mutandis (0.6 mL of water dropped)).
<Antibacterial property>
Judgment is based on the antibacterial activity value measured based on the antibacterial test (JIS L 1902: 2015).
　（実施例１）
１　編み物
　ポリエステル(PET)マルチフィラメント糸（トータル繊度４０Ｄ（Ｄはデニール），フィラメント本数３６本、使用割合　５重量％、トータル繊度５０Ｄ，フィラメント本数７２本、使用割合６０重量％、トータル繊度６０Ｄ，フィラメント本数４８本、使用割合３５重量％）を使用して丸編み機でニットを編成した。得られた編み物生地の質量(目付)は８０ｇ／ｍ2であった。
２　親水性加工処理
（１）使用薬剤
・親水性ポリエステル樹脂：高松油脂社製、商品番号ＫＭＺ－９０２を５％o.w.f(on the weight of fiberの略)
・抗菌剤：市販のジンクピリチオン系化合物　１％o.w.f
（２）処理条件（同浴処理）
　前記編み物生地を、前記薬剤を入れた水溶液に浸漬し、常温から１３０℃まで２℃／分で昇温し、１３０℃で６０分間処理し、冷却し、水洗し、乾燥し、幅出しヒートセットした。
　結果は後にまとめて表１に示す。 (Example 1)
1 Knitting polyester (PET) multifilament yarn (total fineness 40D (D is denier), number of filaments 36, usage ratio 5% by weight, total fineness 50D, number of filaments 72, usage ratio 60%, total fineness 60D, filament A knit was knitted with a circular knitting machine using 48 yarns and a usage ratio of 35% by weight. The mass (weight) of the obtained knitted fabric was 80 g / m 2 .
2 Hydrophilic processing (1) Chemicals used ・ Hydrophilic polyester resin: Made by Takamatsu Oil & Fat Co., Ltd., product number KMZ-902 is 5% owf (abbreviation of on the weight of fiber)
-Antibacterial agent: Commercially available zinc pyrithione compound 1% owf
(2) Treatment conditions (same bath treatment)
The knitted fabric is immersed in an aqueous solution containing the chemical, heated from room temperature to 130 ° C. at 2 ° C./min, treated at 130 ° C. for 60 minutes, cooled, washed with water, dried, and laid out heat set. did.
The results are summarized later in Table 1.
　（実施例２）
１　編み物
　ポリエステル(PET)マルチフィラメント糸（トータル繊度４０Ｄ，フィラメント本数３６本、使用割合５重量％、トータル繊度７５Ｄ，フィラメント本数３６本、使用割合７４重量％、トータル繊度１００Ｄ，フィラメント本数７２本、使用割合２１重量％）を使用して丸編み機でニットを編成した。得られた編み物生地の質量(目付)は１２０ｇ／ｍ2であった。
２　親水性加工処理
（１）使用薬剤
・親水性ポリエステル樹脂加工剤：高松油脂社製、商品番号ＫＭＺ－９０２を５％o.w.f(on the weight of fiberの略)
・抗菌剤：市販の銀イオン系化合物　３％o.w.f
（２）処理条件（逐次処理）
　前記編み物生地を、前記親水性ポリエステル樹脂加工剤を分散した水溶液に浸漬し、常温から１３０℃まで２℃／分で昇温し、１３０℃で６０分間処理し、冷却し、水洗し、乾燥した。
　次に、抗菌剤を分散した水溶液をピックアップ率１００％でパッド処理し、１５０℃で１２０秒熱を加えて幅出し加工セットした。
　結果は表１にまとめて示す。 (Example 2)
1 Knitting polyester (PET) multifilament yarn (total fineness 40D, number of filaments 36, usage ratio 5% by weight, total fineness 75D, number of filaments 36, usage ratio 74% by weight, total fineness 100D, number of filaments 72, used A knit was knitted on a circular knitting machine using a ratio of 21% by weight). The mass (weight) of the obtained knitted fabric was 120 g / m 2 .
2 Hydrophilic processing (1) Chemicals used ・ Hydrophilic polyester resin processing agent: Made by Takamatsu Oil & Fat Co., Ltd., product number KMZ-902 is 5% owf (abbreviation of on the weight of fiber)
-Antibacterial agent: Commercially available silver ion compound 3% owf
(2) Processing conditions (sequential processing)
The knitted fabric was immersed in an aqueous solution in which the hydrophilic polyester resin processing agent was dispersed, heated from room temperature to 130 ° C. at 2 ° C./min, treated at 130 ° C. for 60 minutes, cooled, washed with water, and dried. ..
Next, the aqueous solution in which the antibacterial agent was dispersed was pad-treated at a pickup rate of 100%, and heat was applied at 150 ° C. for 120 seconds to set the width-out processing.
The results are summarized in Table 1.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　以上から、各実施例の処理品は、防汚性が４級以上、吸水性が１０秒以下、拡散性が編み物５５分以内、抗菌性が２．２以上であり、いずれも合格であった。また、風合いも良好で、柔軟であった。 From the above, the treated products of each example had an antifouling property of 4th grade or higher, a water absorption of 10 seconds or less, a diffusivity of 55 minutes or less for knitting, and an antibacterial property of 2.2 or higher, all of which were acceptable. .. The texture was also good and flexible.
　本発明の生地は、例えばスポーツシャツ、Ｔシャツ、インナーシャツ、ブリーフ、タイツ、一般のシャツ、ブリーフ等のインナーウエアはもちろん、ミドルウエア、アウターウェアに好適である。 The fabric of the present invention is suitable not only for innerwear such as sports shirts, T-shirts, inner shirts, briefs, tights, general shirts and briefs, but also for middlewear and outerwear.
１　ポリエステル繊維
２　親水性ポリエステル樹脂加工剤分子
２ａ　ポリエステル基の少なくとも一部
２ｂ　親水性基
３　抗菌剤 1 Polyester fiber 2 Hydrophilic polyester resin processing agent Molecule 2a At least a part of polyester group 2b Hydrophilic group 3 Antibacterial agent

Claims (13)

  1. 　ポリエステル繊維を含む繊維構造物であって、
    　前記ポリエステル繊維内の少なくとも一部には、親水性ポリエステル樹脂加工剤分子の少なくとも一部が吸収され、残余は前記ポリエステル繊維表面を被覆して親水化しており、
    　前記繊維構造物は、
    （１）防汚性：標準汚染土砂と蒸留水を１：１で混ぜあわせた２００ｇの泥水を塗り、２４時間放置後、１０３法(JIS L 0217:1995)洗濯、乾燥後のグレースケール判定(JIS L 0805:2005)が４級以上
    （２）吸水性：滴下法(JIS L 1907:2004)が１０秒以下
    （３）拡散性：拡散性残量水分率試験(ISO 17617 A-1法準用(水0.6mL滴下))が５５分以内
    であることを特徴とする繊維構造物。     A fiber structure containing polyester fibers
    At least a part of the hydrophilic polyester resin processing agent molecule is absorbed in at least a part of the polyester fiber, and the remainder is coated on the surface of the polyester fiber to be hydrophilic.
    The fiber structure is
    (1) Antifouling property: Apply 200 g of muddy water, which is a mixture of standard contaminated earth and sand and distilled water at a ratio of 1: 1 and leave it for 24 hours. JIS L 0805: 2005) is 4th grade or higher (2) Water absorption: Drop method (JIS L 1907: 2004) is 10 seconds or less (3) Diffusivity: Diffusible residual water content test (ISO 17617 A-1 method mutatis mutandis) A fiber structure characterized in that (0.6 mL of water dropped)) is within 55 minutes.
  2. 　前記親水性ポリエステル樹脂加工剤は、直鎖状で、ポリエステル基と親水性基の末端基同士が結合しているブロック共重合体であり、分子量は５０００～８０００である請求項１に記載の繊維構造物。 The fiber according to claim 1, wherein the hydrophilic polyester resin processing agent is a linear block copolymer in which a polyester group and a terminal group of the hydrophilic group are bonded to each other, and has a molecular weight of 5000 to 8000. Structure.
  3. 　前記ポリエステル基の分子量は２００～１０００である請求項２に記載の繊維構造物。 The fiber structure according to claim 2, wherein the polyester group has a molecular weight of 200 to 1000.
  4. 　前記繊維構造物は、さらに
    （４）抗菌性：抗菌性試験(JIS L 1902:2015)に基づいて測定される抗菌活性値が２．２以上である請求項１～３のいずれか１項に記載の繊維構造物。     Further, the fiber structure is further according to any one of claims 1 to 3, wherein the antibacterial activity value measured based on (4) antibacterial property: antibacterial property test (JIS L 1902: 2015) is 2.2 or more. The fibrous structure described.
  5. 　前記ポリエステル繊維は、抗菌剤がポリエステル系加工剤分子の表面に固着されている請求項４に記載の繊維構造物。 The fiber structure according to claim 4, wherein the polyester fiber has an antibacterial agent fixed to the surface of a polyester-based processing agent molecule.
  6. 　前記ポリエステル繊維内の少なくとも一部には、前記抗菌剤の少なくとも一部が吸収されている請求項４又は５に記載の繊維構造物。 The fiber structure according to claim 4 or 5, wherein at least a part of the antibacterial agent is absorbed in at least a part of the polyester fiber.
  7. 　前記抗菌剤の分子量は、２００～１０００である請求項４～６のいずれか１項に記載の繊維構造物。 The fiber structure according to any one of claims 4 to 6, wherein the antibacterial agent has a molecular weight of 200 to 1000.
  8. 　前記繊維構造物は、編物及び織物から選ばれる少なくとも一つであり、拡散性残量水分率試験(ISO 17617 A-1法準用(水0.6mL滴下))は編物が５５分以内、織物が４５分以内である請求項１～７のいずれか１項に記載の繊維構造物。 The fiber structure is at least one selected from knitted fabrics and woven fabrics, and the diffusible residual moisture content test (ISO 17617 A-1 method mutatis mutandis (0.6 mL of water dropped)) shows that the knitted fabric is within 55 minutes and the woven fabric is 45. The fiber structure according to any one of claims 1 to 7, which is within minutes.
  9. 　請求項１～８のいずれか１項に記載の繊維構造物の製造方法であって、
    　前記繊維構造物を、親水性ポリエステル樹脂加工剤を含む水溶液中で浸漬加熱処理し、ポリエステル繊維内の少なくとも一部に前記加工剤分子の少なくとも一部を吸収させ、残余は前記ポリエステル繊維表面を被覆して親水化することを特徴とする繊維構造物の製造方法。     The method for producing a fiber structure according to any one of claims 1 to 8.
    The fiber structure is immersed and heat-treated in an aqueous solution containing a hydrophilic polyester resin processing agent to allow at least a part of the processing agent molecule to be absorbed in at least a part of the polyester fiber, and the remainder covers the surface of the polyester fiber. A method for producing a fiber structure, which is characterized by hydrophilization.
  10. 　前記浸漬加熱処理は、常温から昇温し、温度：１１０～１３５℃、時間：２０～１２０分間熱処理し、冷却し、水洗する処理である請求項９に記載の繊維構造物の製造方法。 The method for producing a fiber structure according to claim 9, wherein the immersion heat treatment is a treatment of raising the temperature from room temperature, heat-treating at a temperature of 110 to 135 ° C. and a time of 20 to 120 minutes, cooling, and washing with water.
  11. 　前記浸漬加熱処理の際に、抗菌剤を加えて同浴処理する請求項９又は１０に記載の繊維構造物の製造方法。 The method for producing a fiber structure according to claim 9 or 10, wherein an antibacterial agent is added and the bath treatment is performed at the time of the immersion heat treatment.
  12. 　前記浸漬加熱処理した後に、抗菌剤を含む水溶液をパッド処理し、加熱処理する請求項９又は１０に記載の繊維構造物の製造方法。 The method for producing a fiber structure according to claim 9 or 10, wherein after the immersion heat treatment, an aqueous solution containing an antibacterial agent is pad-treated and heat-treated.
  13. 　前記浸漬加熱処理の際に、分散染料を加えて同浴処理する請求項９～１２のいずれか１項に記載の繊維構造物の製造方法。 The method for producing a fiber structure according to any one of claims 9 to 12, wherein a disperse dye is added and the bath treatment is performed at the time of the immersion heat treatment.
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