WO2013187360A1 - Stretchable coated fabric and process for producing same - Google Patents

Stretchable coated fabric and process for producing same Download PDF

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Publication number
WO2013187360A1
WO2013187360A1 PCT/JP2013/065950 JP2013065950W WO2013187360A1 WO 2013187360 A1 WO2013187360 A1 WO 2013187360A1 JP 2013065950 W JP2013065950 W JP 2013065950W WO 2013187360 A1 WO2013187360 A1 WO 2013187360A1
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WO
WIPO (PCT)
Prior art keywords
fabric
stretch
coating
synthetic resin
water repellent
Prior art date
Application number
PCT/JP2013/065950
Other languages
French (fr)
Japanese (ja)
Inventor
雅弘 水間
靖広 堀川
Original Assignee
セーレン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by セーレン株式会社 filed Critical セーレン株式会社
Priority to RU2014154146A priority Critical patent/RU2014154146A/en
Priority to EP13804596.8A priority patent/EP2860308A4/en
Priority to CN201380030539.5A priority patent/CN104364437A/en
Priority to US14/406,510 priority patent/US20150140884A1/en
Publication of WO2013187360A1 publication Critical patent/WO2013187360A1/en

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • D—TEXTILES; PAPER
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • 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
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • 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
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/142—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer
    • D06N3/144—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC
    • 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
    • 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
    • D06M2101/34—Polyamides
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/02—Synthetic macromolecular fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/02—Synthetic macromolecular fibres
    • D06N2201/0263—Polyamide fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/041—Polyacrylic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/06—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/068—Polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/142—Hydrophobic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/10—Clothing
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/10—Physical properties porous
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0112—One smooth surface, e.g. laminated or coated
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2008—Fabric composed of a fiber or strand which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2041—Two or more non-extruded coatings or impregnations
    • Y10T442/2098—At least two coatings or impregnations of different chemical composition

Definitions

  • the present invention relates to an elastic coating fabric and a method for producing the same.
  • the “C8 fluorine-based water repellent” is a fluorine-based water repellent made of an emulsion in which a copolymer containing a perfluoroalkyl group having 8 or more carbon atoms is dispersed in a medium.
  • the C8 fluorine-based water repellent contains perfluorooctanoic acid, perfluorooctanesulfonic acid, and the like. These compounds are degraded in the environment and in vivo. Since the decomposition products are accumulated in the environment and in the living body, the environmental load is high. Therefore, a fluorine-based water repellent that does not contain these compounds is desired.
  • the “C6 fluorine-based water repellent” is a fluorine-based water repellent made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms.
  • Patent Document 1 discloses a water / oil repellent fabric using a C6 fluorine-based water repellent and a method for producing the same. Further, in order to obtain a fabric having moisture permeability and waterproof properties and windproof properties, a synthetic resin solution containing an organic solvent by, for example, a dry method on a fabric provided with water and oil repellency using a C6 fluorine-based water repellent. It is done to apply.
  • this C6 fluorine-based water repellent is relatively inferior in water and oil repellency compared to conventional C8 fluorine-based water repellent.
  • the fiber fabric is subjected only to the water / oil repellent treatment using the C6 fluorine-based water repellent, the water / oil repellent performance equivalent to that using the C8 fluorine-based water repellent is obtained as the initial performance.
  • the synthetic resin solution is subsequently coated on the fiber cloth, the synthetic resin solution penetrates into the fiber cloth. This phenomenon is presumed to occur because the fabric processed with the C6 fluorine-based water repellent is inferior in the dynamic oil repellency due to the coating process as compared with the fabric processed with the C8 fluorine-based water repellent.
  • the present invention has been made in view of such problems, and provides an elastic coating fabric that does not affect the environment and has excellent moisture permeability and wind resistance, and a method for producing the same. For the purpose.
  • the stretch-coated fabric according to the first aspect of the present invention comprises: The stretchable fiber fabric is subjected to water repellent treatment using a fluorine-based water repellent made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms, and a synthetic resin solution is applied to at least one surface of the stretchable fiber fabric.
  • a stretch coating fabric in which a coating resin film made of a synthetic resin is formed The stretchable fiber fabric subjected to water repellent treatment using the fluorine-based water repellent has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. of 1.4 to 2.0.
  • the synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
  • the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
  • the initial water repellency (JIS L1092) is grade 4 or higher and the water repellency after 20 washings is grade 3 or higher.
  • the water pressure resistance (JIS L1092 A method) is in the range of 100 to 3000 mmH 2 O, and the moisture permeability is 3000 g / m 2 ⁇ 24 hr (JIS L1092 A-1 method) or more.
  • the air permeability is preferably 6 cc / cm 2 ⁇ sec (JIS L1018 Frazier type method) or less.
  • the stretchable fiber fabric is a knitted fabric knitted by a high gauge knitting machine of 28 gauge or more.
  • the stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf (JIS L1096 A method) is 45% or less, and the elongation in the warp direction at a load of 2.0 kgf is preferably 75% or less.
  • a method for producing a stretch-coated fabric according to the second aspect of the present invention includes: Preparing a stretchable fiber fabric subjected to water repellent treatment using a fluorine-based water repellent comprising a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms; Applying a synthetic resin solution obtained by dissolving a synthetic resin in a solvent to at least one surface of the stretchable fiber fabric; A method for producing an elastic coating fabric comprising: Using the fluorine-based water repellent, the stretch fabric has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. in the range of 1.4 to 2.0, The synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
  • the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
  • the stretchable fiber fabric is a knitted fabric knitted by a high gauge knitting machine of 28 gauge or more.
  • the stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf (JIS L1096 A method) is 45% or less, and the elongation in the warp direction at a load of 2.0 kgf is preferably 75% or less.
  • the stretch coating fabric according to the present invention is subjected to water repellent processing using a fluorine-based water repellent (C6 fluorine-based water repellent) made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms. ing.
  • the stretchable fiber fabric subjected to water repellent treatment with a C6 fluorine-based water repellent has a toluene repellency of 100 seconds or more, and the synthetic resin solution applied to at least one surface of the stretchable fiber fabric has a thixotropy index at 23 ° C. of 1
  • the range is from 4 to 2.0, and the 100% modulus of the synthetic resin is 5 kgf / cm 2 or more. Therefore, there is no back leakage of the synthetic resin, and a coating resin film excellent in film forming property is formed. Thereby, it becomes the stretch coating fabric which has the outstanding moisture-permeable waterproof property and windproof property.
  • the elastic coating fabric according to the embodiment of the present invention will be described in detail below.
  • the stretch-coated fabric according to this embodiment is obtained by applying a water-repellent treatment to a stretchable fiber fabric using a C6 fluorine-based water repellent and then applying a synthetic resin to at least one surface of the stretchable fiber fabric. .
  • stretchable fiber fabric examples include woven fabrics, knitted fabrics, and nonwoven fabrics. Among these, a knitted fabric is preferable in terms of stretchability.
  • the fiber material include natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon and cupra, semi-synthetic fibers such as acetate and triacetate, polyamide (nylon 6, nylon 66, etc.), polyester ( Polyethylene terephthalate, polytrimethylene terephthalate, etc.), synthetic fibers such as polyurethane, polyacryl and the like. Two or more of these may be combined.
  • a synthetic fiber is preferable in terms of fiber properties, and a fabric made of polyamide fiber or polyester fiber is particularly preferable. If these are combined with, for example, polyurethane fibers, which are stretchable, and are used, for example, as a woven fabric, it is preferable because the stretchability can be controlled. Furthermore, among the polyester fibers, cationic dyeable polyester fibers are preferable in order to prevent migration sublimation of disperse dyes.
  • the total fineness of the yarn constituting the stretchable fiber fabric is preferably 84 dtex (decitex) or less.
  • the texture becomes hard.
  • the stretchable fiber fabric is a knitted fabric, the unevenness of the fiber fabric surface becomes large. For this reason, film forming property is impaired. As a result, physical properties such as water pressure resistance and air permeability required when the coating process is performed may not be obtained.
  • the basis weight of the stretchable fiber fabric is preferably 200 g / m 2 or less. If the fabric weight of the stretchable fiber fabric exceeds 200 g / m 2 , it becomes heavy when used as a garment. Moreover, there exists a tendency for the texture as clothing to become hard.
  • the stretch rate of the elastic fiber fabric is preferably 45% or less when the load is 0.5 kgf in the warp direction (JIS L1096 A method). Furthermore, when the load is 2.0 kgf, the elongation rate in the warp direction of the fiber fabric is preferably 75% or less.
  • the stretch rate in the warp direction at a load of 0.5 kgf exceeds 45% or the stretch rate in the warp direction at a load of 2.0 kgf exceeds 75%, the fabric will stretch too much in the warp direction. As a result, the width in the weft direction is increased, and physical properties such as water pressure resistance and air permeability required when coating is performed may not be obtained.
  • the stretchable fiber fabric used in the present embodiment is preferably a knitted fabric knitted with a 28 gauge or higher high gauge knitting machine. If the gauge of the knitting machine is less than 28 gauge, the knitting density of the stretchable fiber fabric is lowered, and the film-forming property at the time of coating processing is lowered. As a result, necessary physical properties such as moisture permeability, water pressure resistance and air permeability may not be obtained.
  • the stretchable fiber fabric may be dyed as necessary.
  • the stretchable fiber fabric may be subjected to antistatic processing, flame retardant processing, calendar processing, and the like.
  • water repellent processing is performed before the application of the synthetic resin.
  • This water repellent finish not only improves waterproofness, but also suppresses the deep penetration of the synthetic resin solution into the fiber fabric. Thereby, while being able to prevent the texture of a stretchable fiber fabric from becoming hard, physical properties, such as a water pressure resistance and an air permeability, can be improved.
  • the water repellent used in the present embodiment is a co-polymer containing a perfluoroalkyl group having 6 or less carbon atoms because it can impart high water repellency and has little influence on the environment and the living body.
  • C6 fluorine-based water repellent made of a polymer.
  • the C6 fluorine-based water repellent is preferably contained in an amount of 80 to 100% with respect to the total water repellent used, and other water repellents include paraffinic water repellents, silicone water repellents, and the like. May be contained in a range of less than 20%.
  • the water-repellent agent used in the present embodiment has a performance of 100 seconds or more in the toluene repellency of a fabric subjected to water-repellent processing in combination with the stretchable fiber fabric used in the measurement method described later. It is preferable. If the toluene repellency is less than 100 seconds, the resin easily penetrates into the stretchable fiber fabric. As a result, the resin may leak from the coating surface to the opposite surface, and required physical properties such as water pressure resistance and air permeability may not be obtained.
  • the C6 fluorine-based water repellent used in the present invention may be used alone or in combination of two or more as long as it satisfies the required performance according to the application such as water repellency and oil repellency. You can also.
  • the thixotropy index at 23 ° C. of the synthetic resin solution used in the present embodiment needs to be in the range of 1.4 to 2.0. More preferably, the thixotropy index is in the range of 1.45 to 1.7.
  • the thixotropy index is a value obtained by dividing the viscosity at low rotation measured by a rotational viscometer at a constant temperature by the viscosity at high rotation. If the thixotropy index is less than 1.4, the synthetic resin tends to flow after the synthetic resin is coated on the fiber fabric to a desired thickness and is cured, and the coating film cannot be maintained. If the thixotropy index exceeds 2.0, the viscosity change with respect to the shear stress is large when coating, and it becomes difficult to control the coating shape in the coating process.
  • the viscosity at 23 ° C. of the synthetic resin solution during coating processing is preferably in the range of 8000 to 25000 mPa ⁇ s, and more preferably in the range of 10,000 to 20000 mPa ⁇ s. If the viscosity at 23 ° C. is less than 8000 mPa ⁇ s, the synthetic resin may penetrate deeply into the fiber fabric and the texture may become hard. In addition, the synthetic resin solution may leak to the other surface of the fiber fabric. On the other hand, when the viscosity at 23 ° C. exceeds 25000 mPa ⁇ s, streak-like defects and bubbles are likely to occur during coating. As a result, it becomes difficult to form a resin film, and sufficient water pressure resistance and wind resistance may not be obtained.
  • the 100% modulus of the synthetic resin used in the present invention is preferably 5 kgf / cm 2 or more.
  • the 100% modulus of the synthetic resin used is less than 5 kgf / cm 2, it is difficult to form a continuous film in the film formation during coating. At the same time, the film strength is weakened, and the physical properties such as required water pressure resistance and air permeability may not be obtained.
  • the upper limit of the 100% modulus is preferably less than 60 kgf / cm 2 as a level that does not impair the texture in consideration of apparel use.
  • the synthetic resin used in the present invention can be selected from at least one of acrylic resin, urethane resin, and silicone resin.
  • an acrylic resin and a urethane resin can be preferably used because a resin having a required film strength can be synthesized.
  • the required moisture permeability and air permeability may not be obtained only with these synthetic resins.
  • a pigment for coloring can be added to these synthetic resins within a range not affecting the physical properties.
  • inorganic / organic fine particles can be added for the purpose of improving moisture permeability and improving surface touch.
  • strength can be added.
  • a synthetic resin is used in an amount of 70% by weight or more, and the inorganic resin having an average particle size of 0.2 to 20 ⁇ m in a proportion of 30% by weight or less in the synthetic resin. Mix fine particles and appropriate amount of water. Thereby, the required moisture permeability and air permeability can be obtained. If the content of the synthetic resin in the coating resin is less than 70% by weight and the content of the inorganic fine particles having an average particle size of 0.2 ⁇ m to 20 ⁇ m is more than 30% by weight, the film strength of the synthetic resin itself is lowered, which is preferable. Absent.
  • the average particle size of the inorganic fine particles to be added is in the range of 0.2 ⁇ m to 20 ⁇ m, the required water pressure resistance, moisture permeability and air permeability can be controlled, and the strength of the synthetic resin film can be significantly reduced. Absent. When the average particle diameter of the inorganic fine particles to be added exceeds 20 ⁇ m, the film strength is lowered, which is not preferable. On the other hand, if the average particle size of the inorganic fine particles to be added is less than 0.2 ⁇ m, the required water pressure resistance, moisture permeability and air permeability cannot be controlled.
  • Pretreatment for coating (water repellent)
  • the stretchable fiber fabric used in the present embodiment is subjected to scouring and dyeing processing by a conventional method in advance, and then subjected to normal water repellent processing using a C6 fluorine-based water repellent as pretreatment before coating processing.
  • a processing means a padding method, a coating method, a gravure coating method, a spray method or the like can be applied.
  • water repellent processing should be performed with a prescription using a melamine-based or isocyanate-based crosslinking agent and a crosslinking catalyst. Is preferred.
  • an antistatic agent or a sewing agent may be used in combination. And you may perform a calendar process before and after performing a water-repellent
  • Coating processing method As a method of coating the synthetic resin on at least one surface of the stretchable fiber fabric in the present embodiment, normal knife coating is preferably employed.
  • the synthetic resin can be coated on at least one surface of the stretchable fiber fabric by a known coating method such as a floating knife coater or a knife over roll coater. Drying after the coating process is preferably performed at 100 to 120 ° C. with a normal hot air dryer, and the heat treatment time is preferably 1 to 5 minutes.
  • the coating amount of the coating resin in this embodiment is preferably 12 to 25 g / m 2 in terms of resin solid content.
  • the coating amount of the coating resin is less than 12 g / m 2 , there is a high possibility that the required physical properties such as water pressure resistance and air permeability cannot be obtained.
  • the coating resin coating amount exceeds 25 g / m 2 , the texture tends to be hard.
  • the initial water repellency (JIS L1092) of the elastic coating fabric of the present embodiment is preferably grade 4 or higher and water repellency after 20 washings is grade 3 or higher.
  • the water pressure resistance (JIS L1092 A method) of the stretch coated fabric is preferably in the range of 100 to 3000 mmH 2 O. Particularly for outdoor and sports applications, the water pressure resistance of the stretch-coated fabric is preferably 300 mmH 2 O or more.
  • the moisture permeation performance (JIS L1092 A-1 method) of the stretch coated fabric of the present embodiment is preferably 3000 g / m 2 ⁇ 24 hr or more. If the moisture permeability of the stretchable coating fabric is less than 3000 g / m 2 ⁇ 24 hr, the feeling of stuffiness may be felt when worn as clothes, and comfort may be impaired.
  • the air permeability of the stretch coating fabric of this embodiment is 6 cc / cm 2 ⁇ sec (JIS L1018 Frazier type method) or less.
  • the air permeability is 20 cc / cm 2 ⁇ sec or less, it can be used as a general windproof material.
  • the stretch coating fabric tends to increase the air permeability at a stretch when it is warped or stretched. For this reason, in the stretch coating fabric, a smaller air permeability is required. Recently, a small air permeability is required depending on the application.
  • the air permeability of the stretch coating fabric is preferably 1 to 3 cc / cm 2 ⁇ sec or less.
  • the breathability of the stretch coating fabric exceeds 6 cc / cm 2 ⁇ sec, sufficient windproof properties cannot be obtained when worn as sports clothes.
  • the stretch coated fabric coated on only one side is used as clothing according to the present embodiment
  • a non-coated surface is used as a surface
  • a coated surface is used as a surface.
  • the former is used to obtain water repellency, but the latter can also be used.
  • the water repellency of the coating resin film is poor, which is not preferable.
  • stretch coated fabrics according to Examples 1 to 5 of the present invention were manufactured and performance evaluation was performed.
  • the stretch coated fabrics of Comparative Examples 1 to 4 were produced and evaluated for performance. Measurement of various physical property values in Examples and Comparative Examples and evaluation of the performance of stretch coating fabrics were performed by the following methods.
  • Viscosity of synthetic resin solution The viscosity of the synthetic resin solution was measured using a B-type viscometer (BM type) manufactured by Toki Sangyo Co., Ltd. 4 (no guard) was used, and the viscosity at 23 ° C. and 12 rpm was measured.
  • BM type B-type viscometer manufactured by Toki Sangyo Co., Ltd. 4 (no guard) was used, and the viscosity at 23 ° C. and 12 rpm was measured.
  • the modulus is a stress when a specific elongation is given to the test piece, and is measured as follows. Add the cross-linking agent used in the coating resin formulation to the synthetic resin to be measured, and then add the diluent solvent used in the coating resin formulation so that the viscosity of the synthetic resin solution is 3000 to 5000 mPa ⁇ s at room temperature. Dilute to The synthetic resin solution was poured into a mold so that the resin film had a thickness of about 0.2 mm, dried at room temperature, dried, and then heat treated at 150 ° C. for 3 minutes to cure the film.
  • a synthetic resin sheet was prepared, and the synthetic resin sheet was punched out into a dumbbell shape with a JIS tensile No. 2 dumbbell-shaped mold to obtain a measurement sample. Then, the sheet thickness of the synthetic resin is measured, a 1 cm marked line is drawn on the portion where the dumbbell width is 1 cm, and the distance between the marked lines in the vertical direction is 2 cm at a tensile speed of 200 mm / min in an environment at a measurement temperature of 23 ° C Until 100% modulus was measured.
  • Toluene repellency evaluation method Toluene, which is an organic solvent, was dropped onto a stretchable fiber fabric subjected to water repellency treatment with a dropper so as to have a diameter of 5 mm, and the time for complete penetration was measured.
  • Elongation rate in the warp direction of fiber fabric (JIS L1096 A method) The sample was 5 cm wide, the gripping interval was 20 cm, the tensile speed was 200 mm / min, and the load was 0.5 kgf and 2.0 kgf.
  • Water repellency Measured according to JIS L1092 spray method (7) Water pressure resistance Measured according to JIS L1092 A method low water pressure method.
  • Moisture permeability Measured according to JIS L1092 A-1 method (calcium chloride method).
  • Example 1 Using a polyester yarn of 33 dtex / 36 filament, a knitted fabric having a smooth structure was knitted using a 40 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 74 g / m 2 . The warp direction elongation of the knitted fabric was 8.6% at a load of 0.5 kgf and 24.9% at a load of 2.0 kgf.
  • the knitted fabric prepared above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents shown in Formula 1, squeezed with a mangle (squeezing ratio: 55% by weight), and dried at 120 ° C. for 60 seconds. After that, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 153 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
  • the synthetic resin solution shown in Formula 2 was applied by a floating knife coating method using a knife coater.
  • the coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain the stretch-coated fabric of Example 1.
  • the fabric weight of this stretch coating fabric was 90 g / m 2 .
  • the physical properties and the like of the obtained stretch coating fabric were confirmed.
  • the air permeability was 1 cc / cm 2 ⁇ sec
  • the water pressure resistance was 300 mmH 2 O
  • the water vapor transmission rate was 6568 g / m 2 ⁇ 24 hours
  • the water repellency was initial.
  • the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • Example 2 Using a 22 dtex / 24 filament polyester yarn, a knitted fabric having a smooth structure was knitted using a 40 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 55 g / m 2 . The warp direction elongation of the knitted fabric was 9.6% at a load of 0.5 kgf and 23.0% at a load of 2.0 kgf.
  • the knitted fabric prepared above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents of the above-mentioned formulation 1, squeezed with a mangle (squeezing ratio: 53 wt%), and dried at 120 ° C. for 60 seconds. Thereafter, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 144 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
  • the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater.
  • the coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 2.
  • the fabric weight of this stretch coating fabric was 71 g / m 2 .
  • the physical properties and the like of the obtained stretch coating fabric were confirmed.
  • the air permeability was 1 cc / cm 2 ⁇ sec
  • the water pressure resistance was 220 mmH 2 O
  • the water vapor transmission rate was 8384 g / m 2 ⁇ 24 hours
  • the water repellency was the initial value.
  • the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • Example 3 A 32 gauge tricot knitted fabric was knitted using 6 nylon yarn of 56 dtex / 48 filament. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after the dyeing process was 178 g / m 2 . The warp direction elongation rate of the knitted fabric was 8.2% at a load of 0.5 kgf and 19.3% at a load of 2.0 kgf.
  • the knitted fabric prepared above is immersed in an aqueous solution using two types of C6 fluorine-based water repellents having different performances of the above-mentioned formulation 1, and squeezed with a mangle (squeezing ratio: 56% by weight) at 120 ° C. After drying for 60 seconds, heat treatment was performed at 160 ° C. for 60 seconds to perform water-repellent processing. It was 174 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
  • the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater.
  • the coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 3.
  • the fabric weight of this stretch coating fabric was 194 g / m 2 .
  • the air permeability was 3 cc / cm 2 ⁇ sec
  • the water pressure resistance was 180 mmH 2 O
  • the water vapor transmission rate was 7240 g / m 2 ⁇ 24 hours
  • the water repellency was initial.
  • the texture of the stretch coating fabric was soft.
  • the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • Example 4 A knitted fabric having a smooth structure was knitted using a polyester yarn of 84 dtex / 72 filaments using a 28 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 188 g / m 2 . The warp direction elongation of the knitted fabric was 5.3% at a load of 0.5 kgf and 10.5% at a load of 2.0 kgf.
  • the knitted fabric produced above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents having different performances of the above-mentioned prescription 1, squeezed with a mangle (squeezing ratio: 54 wt%), and 60 ° C. at 60 ° C. After drying for 2 seconds, heat treatment was performed at 160 ° C. for 60 seconds to perform water-repellent processing. It was 163 seconds when the toluene repellency of the water repellent fabric was evaluated after the water repellent treatment.
  • the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater.
  • the coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain the stretch-coated fabric of Example 4.
  • the fabric weight of this stretch coating fabric was 204 g / m 2 .
  • the physical properties and the like of the obtained stretch coating fabric were confirmed.
  • the air permeability was 1 cc / cm 2 ⁇ sec
  • the water pressure resistance was 220 mmH 2 O
  • the water vapor transmission rate was 8453 g / m 2 ⁇ 24 hours
  • the water repellency was initial.
  • the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • Example 5 Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 3 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 19 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 5. The fabric weight of this stretch coating fabric was 93 g / m 2 .
  • the air permeability was 0.5 cc / cm 2 ⁇ sec
  • the water pressure resistance was 360 mmH 2 O
  • the water vapor transmission rate was 6165 g / m 2 ⁇ 24 hours
  • the water repellency performance was First grade, grade 3 after 20 washings.
  • the texture of the stretch coating fabric was soft.
  • the coating resin did not permeate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • Example 1 Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 4 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 18 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 1. The fabric weight of this stretch coating fabric was 92 g / m 2 .
  • the air permeability was 12 cc / cm 2 ⁇ sec
  • the water pressure resistance was 90 mmH 2 O
  • the water vapor transmission rate was 8965 g / m 2 ⁇ 24 hours
  • Grade 4 and grade 3 after 20 washes Furthermore, the texture of the stretch coating fabric was slightly hard. Furthermore, when the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
  • Comparative Example 2 The water repellent prescription used in Comparative Example 1 was subjected to water repellent finishing using a C8 fluorine-based water repellent of the following prescription 5. Thereafter, the synthetic resin solution shown in Formula 4 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 2. When the water repellency of the water repellent fabric was evaluated before coating, toluene did not penetrate even after 600 seconds or more. The basis weight of the stretchable coating fabric was 90 g / m 2.
  • the air permeability was 0.5 cc / cm 2 ⁇ sec
  • the water pressure was 300 mmH 2 O
  • the moisture permeability was 6350 g / m 2 ⁇ 24 hours
  • the water repellency was The initial grade was 4-5 and the grade was 20 after washing.
  • the texture of the stretch coating fabric was soft.
  • the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
  • the material processed with the C8 fluorine-based water repellent was excellent in physical properties.
  • Example 3 Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 6 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 3. The fabric weight of this stretch coating fabric was 90 g / m 2 .
  • the air permeability was 8 cc / cm 2 ⁇ sec
  • the water pressure resistance was 140 mmH 2 O
  • the water vapor transmission rate was 7920 g / m 2 ⁇ 24 hours
  • Grade 4 and grade 3 after 20 washes Furthermore, the texture of the stretch coating fabric was slightly hard. Furthermore, when the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
  • Example 4 The knitted fabric used in Example 2 is immersed in an aqueous solution using one type of C6 fluorine-based water repellent shown in Formulation 7, drawn with a mangle (squeezing ratio: 53 wt%), and dried at 120 ° C. for 60 seconds. After that, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 36 seconds when the toluene repellency of the water repellent fabric was evaluated after the water repellent treatment.
  • the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater.
  • the coating amount was applied to the knitted fabric so that the resin solid content was 17 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 4.
  • the fabric weight of this stretch coating fabric was 72 g / m 2 .
  • the air permeability was 10 cc / cm 2 ⁇ sec
  • the water pressure resistance was 80 mmH 2 O
  • the water vapor transmission rate was 7453 g / m 2 ⁇ 24 hours
  • the water repellency was initial.
  • the texture of the stretch coating fabric was hard. When the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
  • all of the stretch coating fabrics according to Examples 1 to 5 have a toluene water repellency of a fluorine-based water repellent of 100 seconds or more, and a thixotropic index of a synthetic resin (coating resin) at 23 ° C.
  • the condition that the 100% modulus is 5 kgf / cm 2 or more is satisfied.
  • the air permeability is as small as 3 cc / cm 2 ⁇ sec or less, and it has a sufficient windproof property.
  • the water pressure resistance is as high as 180 mmH 2 O or more
  • the moisture permeability is as high as 6165 g / m 2 ⁇ 24 hours or more, and it has sufficient moisture permeability and waterproofness.
  • the initial grade 4 and grade 3 after 20 washings have sufficient performance. Furthermore, the texture was soft and the quality of the coated surface was good with the coated surface of the fabric covered with a resin film.
  • the stretch coated fabric of Comparative Example 1 has a thixotropy index at 23 ° C. of the synthetic resin (coating resin) of 1.32.
  • the 100% modulus is 4 kgf / cm 2 and the condition of 5 kgf / cm 2 or more is not satisfied.
  • the air permeability is as large as 12 cc / cm 2 ⁇ sec, and the windproof property is insufficient.
  • the water pressure resistance is as low as 90 mmH 2 O, and there is a problem with waterproofness.
  • the texture is hard and there is a problem with the quality of the coating surface.
  • the stretch coated fabric of Comparative Example 2 has no problem in air permeability, water pressure resistance, moisture permeability, texture, and coating surface quality, but is not a C6 fluorine-based water repellent. Since the C8 fluorine-based water repellent is used, the problem of affecting the environment has not been solved.
  • the stretch coated fabric of Comparative Example 3 has a condition that the synthetic resin (coating resin) has a thixotropy index at 23 ° C. of 1.42, which is within the range of 1.4 to 2.0.
  • the 100% modulus is 4 kgf / cm 2 and the condition of 5 kgf / cm 2 or more is not satisfied.
  • the air permeability is as large as 8 cc / cm 2 ⁇ sec, and the windproof property is insufficient.
  • the water pressure resistance is slightly insufficient with 140 mmH 2 O or more.
  • the stretch coated fabric of Comparative Example 4 has a condition that the synthetic resin (coating resin) has a thixotropy index at 23 ° C. of 1.44 and is in the range of 1.4 to 2.0. meets the 100% modulus in the 9kgf / cm 2, it meets the condition that 5kgf / cm 2 or more.
  • the toluene water repellency of the fluorine-based water repellent is as small as 36 seconds and does not satisfy the condition of 100 seconds or more.
  • the air permeability is as large as 10 cc / cm 2 ⁇ sec, and the windproof property is insufficient.
  • the water pressure resistance is insufficient with 80 mmH 2 O or more.
  • the stretch coating fabric according to Example 5 has a thixotropy index at 23 ° C. of the synthetic resin (coating resin) of 1.69, and the stretch coating according to Examples 1 to 4 Larger than the thixotropy index 1.44 of the fabric. For this reason, the air permeability is as small as 0.5 cc / cm 2 ⁇ sec, and the windproof property is particularly excellent. Further, the water pressure resistance is as large as 360 mmH 2 O, and it is excellent in waterproofness.
  • the stretch-coated fabric according to the present embodiment and examples has excellent moisture permeability and waterproof properties and windproof properties. Therefore, it can be suitably used for outdoor use or sports use in the clothing field.
  • the stretch coating fabric according to the present invention is suitable as a clothing fabric used for outdoor use and sports use.

Abstract

A stretchable coated fabric to which water repellency has been imparted using a fluorochemical water repellent (C6 fluorochemical water repellent) comprising a copolymer containing a C6 or lower perfluoroalkyl group. As a result of this configuration, no C8 fluorochemical water repellent containing perfluorooctanoic acid, perfluorooctanesulfonic acid, or the like is used and, hence, the coated fabric exerts no influence on the environment. The fluorochemical water repellent has a toluene repellency of 100 seconds or higher, the synthetic-resin solution to be applied to at least one surface of a stretchable cloth has a thixotropic index measured at 23ºC of 1.4-2.0, and the synthetic resin has a 100% modulus of 5 kgf/cm2 or higher. Consequently, the stretchable coated fabric is free from, for example, synthetic-resin leakage to the back, and a coating resin film is formed with excellent film formation properties.

Description

伸縮性コーティング布帛及びその製造方法Stretch coated fabric and method for producing the same
　本発明は、伸縮性コーティング布帛及びその製造方法に関する。 The present invention relates to an elastic coating fabric and a method for producing the same.
　繊維製品である衣料の表面に、撥水撥油性を付与する方法が必要とされている。具体的には、Ｃ８フッ素系撥水剤を用いて処理する方法が使用されている。ここで、「Ｃ８フッ素系撥水剤」とは、炭素数が８以上のパーフルオロアルキル基を含有する共重合体を媒体に分散させたエマルションからなるフッ素系撥水剤である。しかし、ＥＰＡ（米国環境保護庁）によって、Ｃ８フッ素系撥水剤には、パーフルオロオクタン酸やパーフルオロオクタンスルホン酸等が含まれていることが判明した。これらの化合物は、環境内や生体中で分解する。その分解生成物が環境内や生体中に蓄積されることから、環境負荷が高い。そのため、これらの化合物を含有しないフッ素系撥水剤が要望されている。 There is a need for a method of imparting water and oil repellency to the surface of clothing, which is a textile product. Specifically, a method using a C8 fluorine-based water repellent is used. Here, the “C8 fluorine-based water repellent” is a fluorine-based water repellent made of an emulsion in which a copolymer containing a perfluoroalkyl group having 8 or more carbon atoms is dispersed in a medium. However, it has been found by the EPA (United States Environmental Protection Agency) that the C8 fluorine-based water repellent contains perfluorooctanoic acid, perfluorooctanesulfonic acid, and the like. These compounds are degraded in the environment and in vivo. Since the decomposition products are accumulated in the environment and in the living body, the environmental load is high. Therefore, a fluorine-based water repellent that does not contain these compounds is desired.
　そこで、Ｃ６フッ素系撥水剤への切り替えが急速に進められている。ここで、「Ｃ６フッ素系撥水剤」とは、炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤である。例えば、特許文献１には、Ｃ６フッ素系撥水剤を用いた撥水撥油性布帛及びその製造方法が開示されている。さらに、透湿防水性や防風性を有する布帛を得るために、Ｃ６フッ素系撥水剤を用いて撥水撥油性を付与した布帛に、例えば、乾式法にて、有機溶媒を含む合成樹脂溶液を塗布することが行われている。 Therefore, switching to C6 fluorine-based water repellents is rapidly progressing. Here, the “C6 fluorine-based water repellent” is a fluorine-based water repellent made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms. For example, Patent Document 1 discloses a water / oil repellent fabric using a C6 fluorine-based water repellent and a method for producing the same. Further, in order to obtain a fabric having moisture permeability and waterproof properties and windproof properties, a synthetic resin solution containing an organic solvent by, for example, a dry method on a fabric provided with water and oil repellency using a C6 fluorine-based water repellent. It is done to apply.
特開２００７－２７０３７４号公報JP 2007-270374 A
　しかしながら、このＣ６フッ素系撥水剤は、従来のＣ８フッ素系撥水剤と比較して、相対的に撥水撥油性能が劣る。Ｃ６フッ素系撥水剤を用いて繊維布帛に撥水撥油加工のみを施した場合、初期性能としてはＣ８フッ素系撥水剤を用いたものと同等の撥水撥油性能が得られる。しかし、その後、繊維布帛に合成樹脂溶液をコーティングすると、該合成樹脂溶液が繊維布帛中に浸透してしまう。この現象は、Ｃ６フッ素系撥水剤で加工した布帛は、Ｃ８フッ素系撥水剤で加工された布帛と比較して、コーティング加工による動的な撥油性が劣るために起こると推定される。その結果、繊維布帛の表面に連続した樹脂皮膜が形成されにくく、必要な性能（耐水圧性、透湿性、防風性等）が得られないという問題点があった。 However, this C6 fluorine-based water repellent is relatively inferior in water and oil repellency compared to conventional C8 fluorine-based water repellent. When the fiber fabric is subjected only to the water / oil repellent treatment using the C6 fluorine-based water repellent, the water / oil repellent performance equivalent to that using the C8 fluorine-based water repellent is obtained as the initial performance. However, when a synthetic resin solution is subsequently coated on the fiber cloth, the synthetic resin solution penetrates into the fiber cloth. This phenomenon is presumed to occur because the fabric processed with the C6 fluorine-based water repellent is inferior in the dynamic oil repellency due to the coating process as compared with the fabric processed with the C8 fluorine-based water repellent. As a result, there is a problem that a continuous resin film is not easily formed on the surface of the fiber fabric, and necessary performance (water pressure resistance, moisture permeability, windproof property, etc.) cannot be obtained.
　本発明は、かかる問題点に鑑みてなされたものであって、環境に影響を与えることがなく、かつ、優れた透湿防水性及び防風性を有する伸縮性コーティング布帛及びその製造方法を提供することを目的とする。 The present invention has been made in view of such problems, and provides an elastic coating fabric that does not affect the environment and has excellent moisture permeability and wind resistance, and a method for producing the same. For the purpose.
　上記目的を達成するために、本発明の第１の観点に係る伸縮性コーティング布帛は、
　伸縮性繊維布帛に、炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤を用いて撥水加工を施し、前記伸縮性繊維布帛の少なくとも片面に合成樹脂溶液を塗布して、合成樹脂からなるコーティング樹脂皮膜を形成した伸縮性コーティング布帛であって、
　前記フッ素系撥水剤を用いて撥水加工を施した伸縮性繊維布帛の撥トルエン性が１００秒以上、前記合成樹脂溶液の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内であり、
　前記合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２以上である。 In order to achieve the above object, the stretch-coated fabric according to the first aspect of the present invention comprises:
The stretchable fiber fabric is subjected to water repellent treatment using a fluorine-based water repellent made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms, and a synthetic resin solution is applied to at least one surface of the stretchable fiber fabric. Is a stretch coating fabric in which a coating resin film made of a synthetic resin is formed,
The stretchable fiber fabric subjected to water repellent treatment using the fluorine-based water repellent has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. of 1.4 to 2.0. Yes,
The synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
　前記合成樹脂がアクリル樹脂、ウレタン樹脂、シリコーン樹脂の中から選ばれる少なくとも１種類以上であることが好ましい。 It is preferable that the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
　初期撥水性能（ＪＩＳ　Ｌ１０９２）が４級以上、洗濯２０回後の撥水性能が３級以上であることが好ましい。 It is preferable that the initial water repellency (JIS L1092) is grade 4 or higher and the water repellency after 20 washings is grade 3 or higher.
　耐水圧性（ＪＩＳ　Ｌ１０９２　Ａ法）が１００～３０００ｍｍＨ２Ｏの範囲内で、透湿性が３０００ｇ／ｍ２・２４ｈｒ（ＪＩＳ　Ｌ１０９２　Ａ－１法）以上であることが好ましい。 It is preferable that the water pressure resistance (JIS L1092 A method) is in the range of 100 to 3000 mmH 2 O, and the moisture permeability is 3000 g / m 2 · 24 hr (JIS L1092 A-1 method) or more.
　通気度が６ｃｃ／ｃｍ２・ｓｅｃ（ＪＩＳ　Ｌ１０１８　フラジール形法）以下であることが好ましい。 The air permeability is preferably 6 cc / cm 2 · sec (JIS L1018 Frazier type method) or less.
　前記伸縮性繊維布帛が、２８ゲージ以上のハイゲージの編機で編まれた編物であることが好ましい。 It is preferable that the stretchable fiber fabric is a knitted fabric knitted by a high gauge knitting machine of 28 gauge or more.
　前記伸縮性繊維布帛が、総繊度８４ｄｔｅｘ以下のポリアミド繊維及び／またはポリエステル繊維を主体とした布帛であって、生地目付が２００ｇ／ｍ２以下であり、０．５ｋｇｆ荷重時の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）が、４５％以下で、２．０ｋｇｆ荷重時の経方向の伸長率が、７５％以下であることが好ましい。 The stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf (JIS L1096 A method) is 45% or less, and the elongation in the warp direction at a load of 2.0 kgf is preferably 75% or less.
　また、上記目的を達成するために、本発明の第２の観点に係る伸縮性コーティング布帛の製造方法は、
　炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤を用いて撥水加工を施した伸縮性繊維布帛を用意する工程と、
　前記伸縮性繊維布帛の少なくとも片面に合成樹脂を溶媒に溶解させてなる合成樹脂溶液を塗布する工程と、
を含む伸縮性コーティング布帛の製造方法であって、
　前記フッ素系撥水剤を用いて伸縮性布帛の撥トルエン性を１００秒以上にし、前記合成樹脂溶液の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内であり、
　前記合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２以上である。 In order to achieve the above object, a method for producing a stretch-coated fabric according to the second aspect of the present invention includes:
Preparing a stretchable fiber fabric subjected to water repellent treatment using a fluorine-based water repellent comprising a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms;
Applying a synthetic resin solution obtained by dissolving a synthetic resin in a solvent to at least one surface of the stretchable fiber fabric;
A method for producing an elastic coating fabric comprising:
Using the fluorine-based water repellent, the stretch fabric has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. in the range of 1.4 to 2.0,
The synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
　前記合成樹脂がアクリル樹脂、ウレタン樹脂、シリコーン樹脂の中から選ばれる少なくとも１種類以上であることが好ましい。 It is preferable that the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
　前記伸縮性繊維布帛が、２８ゲージ以上のハイゲージの編機で編まれた編物であることが好ましい。 It is preferable that the stretchable fiber fabric is a knitted fabric knitted by a high gauge knitting machine of 28 gauge or more.
　前記伸縮性繊維布帛が、総繊度８４ｄｔｅｘ以下のポリアミド繊維及び／またはポリエステル繊維を主体とした布帛であって、生地目付が２００ｇ／ｍ２以下であり、０．５ｋｇｆ荷重時の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）が、４５％以下で、２．０ｋｇｆ荷重時の経方向の伸長率が、７５％以下であることが好ましい。 The stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf (JIS L1096 A method) is 45% or less, and the elongation in the warp direction at a load of 2.0 kgf is preferably 75% or less.
　本発明に係る伸縮性コーティング布帛は、炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤（Ｃ６フッ素系撥水剤）を用いて撥水加工が施されている。これにより、パーフルオロオクタン酸やパーフルオロオクタンスルホン酸等が含まれたＣ８フッ素系撥水剤を使用しないことから、環境に影響を与えることが少ない。また、Ｃ６フッ素系撥水剤で撥水加工を施した伸縮性繊維布帛の撥トルエン性が１００秒以上、伸縮性繊維布帛の少なくとも片面に塗布される合成樹脂溶液の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内であり、合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２以上である。したがって、合成樹脂の裏漏れなどがなく、製膜性に優れたコーティング樹脂皮膜が形成される。これにより、優れた透湿防水性及び防風性を有する伸縮性コーティング布帛となる。 The stretch coating fabric according to the present invention is subjected to water repellent processing using a fluorine-based water repellent (C6 fluorine-based water repellent) made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms. ing. Thereby, since the C8 fluorine-based water repellent containing perfluorooctanoic acid, perfluorooctane sulfonic acid or the like is not used, there is little influence on the environment. The stretchable fiber fabric subjected to water repellent treatment with a C6 fluorine-based water repellent has a toluene repellency of 100 seconds or more, and the synthetic resin solution applied to at least one surface of the stretchable fiber fabric has a thixotropy index at 23 ° C. of 1 The range is from 4 to 2.0, and the 100% modulus of the synthetic resin is 5 kgf / cm 2 or more. Therefore, there is no back leakage of the synthetic resin, and a coating resin film excellent in film forming property is formed. Thereby, it becomes the stretch coating fabric which has the outstanding moisture-permeable waterproof property and windproof property.
　本発明の実施形態に係る伸縮性コーティング布帛について、以下に詳細に説明する。本実施形態に係る伸縮性コーティング布帛は、伸縮性繊維布帛に、Ｃ６フッ素系撥水剤を用いて撥水処理を施した後、該伸縮性繊維布帛の少なくとも片面に合成樹脂を塗布してなる。 The elastic coating fabric according to the embodiment of the present invention will be described in detail below. The stretch-coated fabric according to this embodiment is obtained by applying a water-repellent treatment to a stretchable fiber fabric using a C6 fluorine-based water repellent and then applying a synthetic resin to at least one surface of the stretchable fiber fabric. .
（１）伸縮性繊維布帛
　本実施形態に用いられる伸縮性繊維布帛の形態としては、例えば、織物、編物、不織布などが挙げられる。これらの中でも、伸縮性の点で編物が好ましい。また、繊維素材としては、例えば、綿、麻、羊毛、絹等の天然繊維、レーヨン、キュプラ等の再生繊維、アセテート、トリアセテート等の半合成繊維、ポリアミド（ナイロン６、ナイロン６６等）、ポリエステル（ポリエチレンテレフタレート、ポリトリメチレンテレフタレート等）、ポリウレタン、ポリアクリル等の合成繊維などが挙げられる。これらが２種以上組み合わされていてもよい。これらの中でも、繊維物性の点で合成繊維が好ましく、特にポリアミド繊維やポリエステル繊維からなる布帛が好ましい。これらに伸縮性のある、例えばポリウレタン繊維が組み合わされ、例えば織物として用いられれば、伸縮性のコントロールが可能となり好ましい。さらに、ポリエステル繊維の中では、分散染料の移行昇華を防ぐため、カチオン可染ポリエステル繊維が好ましい。 (1) Stretchable fiber fabric Examples of the stretchable fiber fabric used in the present embodiment include woven fabrics, knitted fabrics, and nonwoven fabrics. Among these, a knitted fabric is preferable in terms of stretchability. Examples of the fiber material include natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon and cupra, semi-synthetic fibers such as acetate and triacetate, polyamide (nylon 6, nylon 66, etc.), polyester ( Polyethylene terephthalate, polytrimethylene terephthalate, etc.), synthetic fibers such as polyurethane, polyacryl and the like. Two or more of these may be combined. Among these, a synthetic fiber is preferable in terms of fiber properties, and a fabric made of polyamide fiber or polyester fiber is particularly preferable. If these are combined with, for example, polyurethane fibers, which are stretchable, and are used, for example, as a woven fabric, it is preferable because the stretchability can be controlled. Furthermore, among the polyester fibers, cationic dyeable polyester fibers are preferable in order to prevent migration sublimation of disperse dyes.
　伸縮性繊維布帛を構成する糸の総繊度は、８４ｄｔｅｘ（デシテックス）以下であることが好ましい。本実施形態で用いられる糸の総繊度が８４ｄｔｅｘを超えると、風合いが硬くなる。それだけでなく、例えば、伸縮性繊維布帛が編地の場合に、繊維布帛表面の凹凸が大きくなる。このために、製膜性が損なわれる。その結果、コーティング加工を行った際に必要とされる耐水圧や通気度等の物性が得られないおそれがある。 The total fineness of the yarn constituting the stretchable fiber fabric is preferably 84 dtex (decitex) or less. When the total fineness of the yarn used in this embodiment exceeds 84 dtex, the texture becomes hard. In addition, for example, when the stretchable fiber fabric is a knitted fabric, the unevenness of the fiber fabric surface becomes large. For this reason, film forming property is impaired. As a result, physical properties such as water pressure resistance and air permeability required when the coating process is performed may not be obtained.
　伸縮性繊維布帛の目付けは、２００ｇ／ｍ２以下であることが好ましい。伸縮性繊維布帛の目付けが２００ｇ／ｍ２を超えると、衣料としたときに重くなる。また、衣料としての風合いが硬くなる傾向がある。
　伸縮性繊維布帛の伸長率は、０．５ｋｇｆの荷重時に、繊維布帛の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）が、４５％以下であることが好ましい。さらに２．０ｋｇｆの荷重時に、繊維布帛の経方向の伸長率が、７５％以下であることが好ましい。０．５ｋｇｆの荷重時の経方向の伸長率が４５％を超えたり、２．０ｋｇｆの荷重時の経方向の伸長率が７５％を超えると、布帛が経方向に伸びすぎることになる。これにより、緯方向の幅入りも大きくなって、コーティング加工を行った際に必要とする耐水圧や通気度等の物性が得られないおそれがある。 The basis weight of the stretchable fiber fabric is preferably 200 g / m 2 or less. If the fabric weight of the stretchable fiber fabric exceeds 200 g / m 2 , it becomes heavy when used as a garment. Moreover, there exists a tendency for the texture as clothing to become hard.
The stretch rate of the elastic fiber fabric is preferably 45% or less when the load is 0.5 kgf in the warp direction (JIS L1096 A method). Furthermore, when the load is 2.0 kgf, the elongation rate in the warp direction of the fiber fabric is preferably 75% or less. If the stretch rate in the warp direction at a load of 0.5 kgf exceeds 45% or the stretch rate in the warp direction at a load of 2.0 kgf exceeds 75%, the fabric will stretch too much in the warp direction. As a result, the width in the weft direction is increased, and physical properties such as water pressure resistance and air permeability required when coating is performed may not be obtained.
　本実施形態に用いられる伸縮性繊維布帛は、２８ゲージ以上のハイゲージの編機で編まれている編物であることが好ましい。編機のゲージが２８ゲージ未満であると、伸縮性繊維布帛の編密度が低くなり、コーティング加工を行った際の製膜性が低下する。この結果、必要とする透湿性、耐水圧や通気度等の物性が得られないおそれがある。 The stretchable fiber fabric used in the present embodiment is preferably a knitted fabric knitted with a 28 gauge or higher high gauge knitting machine. If the gauge of the knitting machine is less than 28 gauge, the knitting density of the stretchable fiber fabric is lowered, and the film-forming property at the time of coating processing is lowered. As a result, necessary physical properties such as moisture permeability, water pressure resistance and air permeability may not be obtained.
　伸縮性繊維布帛には、必要に応じて、染色が施されていてもよい。伸縮性繊維布帛には、帯電防止加工、難燃加工、カレンダー加工などが施されていてもよい。 The stretchable fiber fabric may be dyed as necessary. The stretchable fiber fabric may be subjected to antistatic processing, flame retardant processing, calendar processing, and the like.
（２）Ｃ６フッ素系撥水剤
　本実施形態においては、合成樹脂の塗布前に撥水加工を行う。この撥水加工は防水性を向上させるだけでなく、合成樹脂溶液が繊維布帛内部に深く浸透するのを抑制する。これにより、伸縮性繊維布帛の風合いが硬くなるのを防止できるとともに、耐水圧や通気度等の物性を向上させることができる。
　本実施形態で用いられる撥水剤は、高い撥水性を付与することができるという点と環境や生体に対して影響が少ないという点から、炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤（Ｃ６フッ素系撥水剤）を用いて加工を行う。本実施形態においては、Ｃ６フッ素系撥水剤が、使用する全撥水剤に対し８０～１００％含まれるものが好ましく、その他の撥水剤としてパラフィン系撥水剤やシリコーン系撥水剤などが２０％未満の範囲で含まれていてもよい。 (2) C6 fluorine-based water repellent In this embodiment, water repellent processing is performed before the application of the synthetic resin. This water repellent finish not only improves waterproofness, but also suppresses the deep penetration of the synthetic resin solution into the fiber fabric. Thereby, while being able to prevent the texture of a stretchable fiber fabric from becoming hard, physical properties, such as a water pressure resistance and an air permeability, can be improved.
The water repellent used in the present embodiment is a co-polymer containing a perfluoroalkyl group having 6 or less carbon atoms because it can impart high water repellency and has little influence on the environment and the living body. Processing is performed using a fluorine-based water repellent (C6 fluorine-based water repellent) made of a polymer. In the present embodiment, the C6 fluorine-based water repellent is preferably contained in an amount of 80 to 100% with respect to the total water repellent used, and other water repellents include paraffinic water repellents, silicone water repellents, and the like. May be contained in a range of less than 20%.
　本実施形態で使用される撥水剤は、後述される測定方法において、使用する伸縮性繊維布帛との組み合わせで、撥水加工を行った布帛の撥トルエン性が１００秒以上の性能が得られることが好ましい。撥トルエン性が１００秒未満であると、伸縮性繊維布帛に対して樹脂が浸透しやすくなる。この結果、樹脂がコーティング面から反対側の面に漏れたりして、必要とする耐水圧や通気度等の物性が得られないおそれがある。
　本発明に用いられるＣ６フッ素系撥水剤は、撥水性や撥油性など用途に応じた要求性能を満たすものであれば、１種類を単独で用いてもよく、２種類以上を組み合わせて用いることもできる。 The water-repellent agent used in the present embodiment has a performance of 100 seconds or more in the toluene repellency of a fabric subjected to water-repellent processing in combination with the stretchable fiber fabric used in the measurement method described later. It is preferable. If the toluene repellency is less than 100 seconds, the resin easily penetrates into the stretchable fiber fabric. As a result, the resin may leak from the coating surface to the opposite surface, and required physical properties such as water pressure resistance and air permeability may not be obtained.
The C6 fluorine-based water repellent used in the present invention may be used alone or in combination of two or more as long as it satisfies the required performance according to the application such as water repellency and oil repellency. You can also.
（３）コーティング樹脂
　本実施形態に用いる合成樹脂溶液の２３℃におけるチクソトロピー指数は、１．４～２．０の範囲内にあることが必要である。さらに好ましくは、チクソトロピー指数が、１．４５～１．７の範囲内にあることである。チクソトロピー指数とは、一定温度において、回転粘度計により測定される低回転時の粘度を高回転時の粘度で除した値である。チクソトロピー指数が１．４より小さいと、繊維布帛上に合成樹脂を所望の厚さにコーティングした後、硬化するまでの間に合成樹脂が流動しやすくなり、コーティング膜を維持することができなくなる。チクソトロピー指数が２．０を超えると、コーティングする場合にせん断応力に対する粘度変化が大きく、コーティング加工にてコーティング形状を制御することが困難となる。 (3) Coating resin The thixotropy index at 23 ° C. of the synthetic resin solution used in the present embodiment needs to be in the range of 1.4 to 2.0. More preferably, the thixotropy index is in the range of 1.45 to 1.7. The thixotropy index is a value obtained by dividing the viscosity at low rotation measured by a rotational viscometer at a constant temperature by the viscosity at high rotation. If the thixotropy index is less than 1.4, the synthetic resin tends to flow after the synthetic resin is coated on the fiber fabric to a desired thickness and is cured, and the coating film cannot be maintained. If the thixotropy index exceeds 2.0, the viscosity change with respect to the shear stress is large when coating, and it becomes difficult to control the coating shape in the coating process.
　また、コーティング加工時の合成樹脂溶液の２３℃における粘度は、８０００～２５０００ｍＰａ・ｓの範囲内であることが好ましく、１００００～２００００ｍＰａ・ｓの範囲内であることがより好ましい。２３℃における粘度が８０００ｍＰａ・ｓ未満であると、合成樹脂が繊維布帛内部に深く浸透して風合いが硬くなるおそれがある。また、合成樹脂溶液が繊維布帛の他方の面にまで漏れ出したりするおそれがある。一方、２３℃における粘度が２５０００ｍＰａ・ｓを超えると、コーティング加工時に筋状の欠点や気泡が発生し易くなる。この結果、樹脂皮膜の形成が困難となり、十分な耐水圧や防風性が得られないおそれがある。 Further, the viscosity at 23 ° C. of the synthetic resin solution during coating processing is preferably in the range of 8000 to 25000 mPa · s, and more preferably in the range of 10,000 to 20000 mPa · s. If the viscosity at 23 ° C. is less than 8000 mPa · s, the synthetic resin may penetrate deeply into the fiber fabric and the texture may become hard. In addition, the synthetic resin solution may leak to the other surface of the fiber fabric. On the other hand, when the viscosity at 23 ° C. exceeds 25000 mPa · s, streak-like defects and bubbles are likely to occur during coating. As a result, it becomes difficult to form a resin film, and sufficient water pressure resistance and wind resistance may not be obtained.
　また、本発明において使用される合成樹脂の１００％モジュラスは５ｋｇｆ／ｃｍ２以上であることが好ましい。使用される合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２未満であると、コーティング時の皮膜形成において、連続した皮膜形成が難しくなる。また、同時に皮膜強度も弱くなって、必要とする耐水圧や通気度等の物性が得られないおそれがある。また１００％モジュラスの上限としては衣料用途を考慮し、風合いを損なわないレベルとして、６０ｋｇｆ／ｃｍ２未満であることが好ましい。 The 100% modulus of the synthetic resin used in the present invention is preferably 5 kgf / cm 2 or more. When the 100% modulus of the synthetic resin used is less than 5 kgf / cm 2, it is difficult to form a continuous film in the film formation during coating. At the same time, the film strength is weakened, and the physical properties such as required water pressure resistance and air permeability may not be obtained. Further, the upper limit of the 100% modulus is preferably less than 60 kgf / cm 2 as a level that does not impair the texture in consideration of apparel use.
　本発明において使用される合成樹脂は、アクリル樹脂、ウレタン樹脂、シリコーン樹脂の中から少なくとも１種類以上を選択して使用することができる。特にアクリル樹脂やウレタン樹脂は、必要な皮膜強度をもった樹脂を合成できることから、好ましく用いることができる。
　また、これらの合成樹脂だけでは、必要とする透湿性や通気性が得られない場合がある。その場合には、これらの合成樹脂中に、物性に影響を及ぼさない範囲内で、着色用の顔料を添加することができる。また、透湿性の向上や表面のタッチを改善する目的で無機／有機微粒子を添加することができる。また、皮膜強度を向上させる架橋剤や抗菌剤等を添加することができる。 The synthetic resin used in the present invention can be selected from at least one of acrylic resin, urethane resin, and silicone resin. In particular, an acrylic resin and a urethane resin can be preferably used because a resin having a required film strength can be synthesized.
Moreover, the required moisture permeability and air permeability may not be obtained only with these synthetic resins. In that case, a pigment for coloring can be added to these synthetic resins within a range not affecting the physical properties. In addition, inorganic / organic fine particles can be added for the purpose of improving moisture permeability and improving surface touch. Moreover, a crosslinking agent, an antibacterial agent, etc. which improve film | membrane intensity | strength can be added.
　例えば、透湿性や通気度を向上させる場合には、合成樹脂を７０重量％以上用いて、この合成樹脂の中に３０重量％以下の割合で、平均粒子径が０．２～２０μｍの無機系微粒子や適量の水を混合する。これにより、必要とする透湿性や通気性を得ることができる。コーティング樹脂中の合成樹脂の含有量が７０重量％を下回り、平均粒子径が０．２μｍ～２０μｍの無機系微粒子の含有量が３０重量％を超えると、合成樹脂自体の皮膜強度が落ちるため好ましくない。添加する無機系微粒子は、平均粒子径が０．２μｍ～２０μｍの範囲であれば、必要な耐水圧や透湿性、通気性をコントロールすることができて、合成樹脂皮膜の強度を著しく落とすことはない。添加する無機系微粒子の平均粒子径が２０μｍを超えると、皮膜強度低下が起こり、好ましくない。また、添加する無機系微粒子の平均粒子径が０．２μｍを下回ると、必要な耐水圧や透湿性、通気性をコントロールすることができなくなるおそれがある。 For example, in order to improve moisture permeability and air permeability, a synthetic resin is used in an amount of 70% by weight or more, and the inorganic resin having an average particle size of 0.2 to 20 μm in a proportion of 30% by weight or less in the synthetic resin. Mix fine particles and appropriate amount of water. Thereby, the required moisture permeability and air permeability can be obtained. If the content of the synthetic resin in the coating resin is less than 70% by weight and the content of the inorganic fine particles having an average particle size of 0.2 μm to 20 μm is more than 30% by weight, the film strength of the synthetic resin itself is lowered, which is preferable. Absent. If the average particle size of the inorganic fine particles to be added is in the range of 0.2 μm to 20 μm, the required water pressure resistance, moisture permeability and air permeability can be controlled, and the strength of the synthetic resin film can be significantly reduced. Absent. When the average particle diameter of the inorganic fine particles to be added exceeds 20 μm, the film strength is lowered, which is not preferable. On the other hand, if the average particle size of the inorganic fine particles to be added is less than 0.2 μm, the required water pressure resistance, moisture permeability and air permeability cannot be controlled.
（４）コーティング加工の前処理（撥水加工）
　本実施形態に用いられる伸縮性繊維布帛は、予め常法により精練染色加工を行った後、コーティング加工の前に前処理として、Ｃ６フッ素系撥水剤を用いて通常の撥水加工を行う。加工の手段としては、パディング法、コーティング法、グラビアコーティング法、スプレー法などの手段が適用できる。
　また、Ｃ６フッ素系撥水剤だけでは、撥水性の洗濯耐久性が得られないおそれがあるため、メラミン系やイソシアネート系の架橋剤及び架橋触媒等を併用した処方にて撥水加工を行うことが好ましい。さらに必要に応じて、耐電防止剤や可縫性向上剤等を併用してもかまわない。そして、撥水加工を行う前や行った後に必要に応じてカレンダー処理を行ってもよい。
　さらに、コーティング布帛の引裂強力や風合い、すべり感なども併せて向上させたいときは、撥水剤としてフッ素系撥水剤エマルジョンとポリエチレンエマルジョンとを混合した水分散液を使用するのがよい。また、これらの使用に併せ、例えば、シリコーン樹脂や滑剤などを用いることにより風合い、すべり感などをさらに向上させることができる。 (4) Pretreatment for coating (water repellent)
The stretchable fiber fabric used in the present embodiment is subjected to scouring and dyeing processing by a conventional method in advance, and then subjected to normal water repellent processing using a C6 fluorine-based water repellent as pretreatment before coating processing. As a processing means, a padding method, a coating method, a gravure coating method, a spray method or the like can be applied.
In addition, since water-repellent washing durability may not be obtained with only C6 fluorine-based water repellents, water repellent processing should be performed with a prescription using a melamine-based or isocyanate-based crosslinking agent and a crosslinking catalyst. Is preferred. Further, if necessary, an antistatic agent or a sewing agent may be used in combination. And you may perform a calendar process before and after performing a water-repellent | finishing process as needed.
Furthermore, when it is desired to improve the tearing strength, texture, slipperiness, etc. of the coated fabric, it is preferable to use an aqueous dispersion obtained by mixing a fluorine-based water repellent emulsion and a polyethylene emulsion as the water repellent. Further, in combination with these uses, for example, a silicone resin or a lubricant can be used to further improve the texture, slipperiness, and the like.
（５）コーティング加工方法
　本実施形態における伸縮性繊維布帛の少なくとも片面に合成樹脂をコーティングする方法としては、通常のナイフコーティングが好ましく採用される。例えば、フローティングナイフコータ、ナイフオーバーロールコータ等の公知のコーティング加工方法によって、伸縮性繊維布帛の少なくとも片面に合成樹脂をコーティングする事ができる。コーティング加工後の乾燥は、通常の熱風乾燥機にて１００～１２０℃で、熱処理時間は、１～５分間であることが好ましい。 (5) Coating processing method As a method of coating the synthetic resin on at least one surface of the stretchable fiber fabric in the present embodiment, normal knife coating is preferably employed. For example, the synthetic resin can be coated on at least one surface of the stretchable fiber fabric by a known coating method such as a floating knife coater or a knife over roll coater. Drying after the coating process is preferably performed at 100 to 120 ° C. with a normal hot air dryer, and the heat treatment time is preferably 1 to 5 minutes.
　本実施形態におけるコーティング樹脂の塗布量は、樹脂固形分が１２～２５ｇ／ｍ２であることが好ましい。コーティング樹脂の塗布量が１２ｇ／ｍ２未満であると、必要とする耐水圧や通気度等の物性が得られないおそれが高くなる。一方、コーティング樹脂の塗布量が２５ｇ／ｍ２を超えると風合いが硬くなる傾向がある。 The coating amount of the coating resin in this embodiment is preferably 12 to 25 g / m 2 in terms of resin solid content. When the coating amount of the coating resin is less than 12 g / m 2 , there is a high possibility that the required physical properties such as water pressure resistance and air permeability cannot be obtained. On the other hand, when the coating resin coating amount exceeds 25 g / m 2 , the texture tends to be hard.
（６）伸縮性コーティング布帛
　本実施形態の伸縮性コーティング布帛の初期撥水性能（ＪＩＳ　Ｌ１０９２）は、初期４級以上、洗濯２０回後の撥水性能が３級以上であることが好ましい。さらに伸縮性コーティング布帛の耐水圧性能（ＪＩＳ　Ｌ１０９２　Ａ法）は、１００～３０００ｍｍＨ２Ｏの範囲内であることが好ましい。特にアウトドアやスポーツ用途であれば、伸縮性コーティング布帛の耐水圧性能は、３００ｍｍＨ２Ｏ以上であることが好ましい。 (6) Elastic coating fabric The initial water repellency (JIS L1092) of the elastic coating fabric of the present embodiment is preferably grade 4 or higher and water repellency after 20 washings is grade 3 or higher. Furthermore, the water pressure resistance (JIS L1092 A method) of the stretch coated fabric is preferably in the range of 100 to 3000 mmH 2 O. Particularly for outdoor and sports applications, the water pressure resistance of the stretch-coated fabric is preferably 300 mmH 2 O or more.
　また、本実施形態の伸縮性コーティング布帛の透湿性能（ＪＩＳ　Ｌ１０９２　Ａ－１法）は、３０００ｇ／ｍ２・２４ｈｒ以上であることが好ましい。伸縮性コーティング布帛の透湿度が３０００ｇ／ｍ２・２４ｈｒ未満であると、衣服として着用した際に蒸れ感を覚え、快適性が損なわれるおそれがある。 Further, the moisture permeation performance (JIS L1092 A-1 method) of the stretch coated fabric of the present embodiment is preferably 3000 g / m 2 · 24 hr or more. If the moisture permeability of the stretchable coating fabric is less than 3000 g / m 2 · 24 hr, the feeling of stuffiness may be felt when worn as clothes, and comfort may be impaired.
　また、本実施形態の伸縮性コーティング布帛の通気度は、６ｃｃ／ｃｍ２・ｓｅｃ（ＪＩＳ　Ｌ１０１８フラジール形法）以下であることが好ましい。通常、通気度は２０ｃｃ／ｃｍ２・ｓｅｃ以下であれば、一般的な防風性素材として使用可能である。しかし、伸縮性コーティング布帛は、経伸びや緯伸びした場合に通気度が一気に増加する傾向がある。このため、伸縮性コーティング布帛においては、より小さな通気度が求められている。また最近は、用途により小さな通気度が求められるようにもなってきている。例えば、ニット素材をダウン衣料に用いる例が増えてきており、このような用途であると伸縮性コーティング布帛の通気度は１～３ｃｃ／ｃｍ２・ｓｅｃ以下が好ましい。スポーツ等の用途で使用されるような場合には、伸縮性コーティング布帛の通気度が６ｃｃ／ｃｍ２・ｓｅｃを超えると、スポーツ衣服として着用した際に十分な防風性が得られない。 Moreover, it is preferable that the air permeability of the stretch coating fabric of this embodiment is 6 cc / cm 2 · sec (JIS L1018 Frazier type method) or less. Usually, if the air permeability is 20 cc / cm 2 · sec or less, it can be used as a general windproof material. However, the stretch coating fabric tends to increase the air permeability at a stretch when it is warped or stretched. For this reason, in the stretch coating fabric, a smaller air permeability is required. Recently, a small air permeability is required depending on the application. For example, an example of using a knit material for down clothing is increasing, and for such a use, the air permeability of the stretch coating fabric is preferably 1 to 3 cc / cm 2 · sec or less. When used for sports or the like, if the breathability of the stretch coating fabric exceeds 6 cc / cm 2 · sec, sufficient windproof properties cannot be obtained when worn as sports clothes.
　本実施形態により片面のみコーティング加工された伸縮性コーティング布帛を衣料として使用する場合、コーティング加工されていない面を表面として使用する場合とコーティング加工された面を表面として使用する場合が考えられる。基本的には撥水性を得るために前者で使用されるが、後者で使用することも可能である。しかしこの場合、コーティング樹脂の被膜にて撥水性が劣るため、好ましくない。 When the stretch coated fabric coated on only one side is used as clothing according to the present embodiment, there are a case where a non-coated surface is used as a surface and a case where a coated surface is used as a surface. Basically, the former is used to obtain water repellency, but the latter can also be used. However, in this case, the water repellency of the coating resin film is poor, which is not preferable.
　以下、本発明を実施例によりさらに具体的に説明するが、本発明は以下の実施例によって何ら限定されるものではない。 Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples.
　以下に説明するように、本発明の実施例１～５に係る伸縮性コーティング布帛を製造し、性能評価を行った。また、比較のため、比較例１～４の伸縮性コーティング布帛を製造し、性能評価を行った。
　実施例及び比較例における各種物性値の測定や、伸縮性コーティング布帛の性能の評価は、下記の方法で行った。 As described below, stretch coated fabrics according to Examples 1 to 5 of the present invention were manufactured and performance evaluation was performed. For comparison, the stretch coated fabrics of Comparative Examples 1 to 4 were produced and evaluated for performance.
Measurement of various physical property values in Examples and Comparative Examples and evaluation of the performance of stretch coating fabrics were performed by the following methods.
（１）チクソトロピー指数
　合成樹脂溶液のチクソトロピー指数は、東機産業（株）製のＢ型粘度計（ＢＭ型）にて、ローターＮｏ．４（ガード無し）を用いて、２３℃における粘度を測定したときに、回転数６ｒｐｍにおける粘度（６ｒｐｍ）と、回転数３０ｒｐｍにおける粘度（３０ｒｐｍ）との比を表したもので、一般式（Ａ）で示される。
　　　　チクソトロピー指数＝粘度（６ｒｐｍ）／粘度（３０ｒｐｍ）　　・・・（Ａ） (1) Thixotropic index The thixotropy index of the synthetic resin solution was measured using a B-type viscometer (BM type) manufactured by Toki Sangyo Co., Ltd. 4 (without guard), when the viscosity at 23 ° C. was measured, the ratio between the viscosity at 6 rpm (6 rpm) and the viscosity at 30 rpm (30 rpm) was expressed by the general formula (A ).
Thixotropic index = viscosity (6 rpm) / viscosity (30 rpm) (A)
（２）合成樹脂溶液粘度
　合成樹脂溶液粘度は、東機産業（株）製のＢ型粘度計（ＢＭ型）にて、ローターＮｏ．４（ガード無し）を用いて、２３℃における回転数１２ｒｐｍの粘度を測定した。 (2) Viscosity of synthetic resin solution The viscosity of the synthetic resin solution was measured using a B-type viscometer (BM type) manufactured by Toki Sangyo Co., Ltd. 4 (no guard) was used, and the viscosity at 23 ° C. and 12 rpm was measured.
（３）合成樹脂の１００％モジュラス
　モジュラスとは、試験片に特定の伸びを与えた時の応力であり、以下のようにして測定した。測定する合成樹脂に、コーティング樹脂処方で使用する架橋剤を添加して、そこにコーティング樹脂処方で使用する希釈溶剤を添加して、合成樹脂溶液の粘度が室温で３０００～５０００ｍＰａ・ｓになるように希釈した。その合成樹脂溶液を、樹脂皮膜が約０．２ｍｍの厚さになるように型に流し込み、常温で乾燥させ、乾燥後、１５０℃で３分間熱処理を行い、皮膜を硬化させた。このようにして合成樹脂のシートを作り、ＪＩＳの引張２号形ダンベル状の型で合成樹脂のシートをダンベル状に打ち抜き、測定試料とした。そして、合成樹脂のシート厚みを測定し、ダンベルの幅が１ｃｍの部分に１ｃｍの標線を引き、測定温度２３℃の環境で、引張速度２００ｍｍ／分で、縦方向に標線の間隔が２ｃｍになるまで引っぱって、１００％モジュラスを測定した。 (3) 100% Modulus of Synthetic Resin The modulus is a stress when a specific elongation is given to the test piece, and is measured as follows. Add the cross-linking agent used in the coating resin formulation to the synthetic resin to be measured, and then add the diluent solvent used in the coating resin formulation so that the viscosity of the synthetic resin solution is 3000 to 5000 mPa · s at room temperature. Dilute to The synthetic resin solution was poured into a mold so that the resin film had a thickness of about 0.2 mm, dried at room temperature, dried, and then heat treated at 150 ° C. for 3 minutes to cure the film. In this way, a synthetic resin sheet was prepared, and the synthetic resin sheet was punched out into a dumbbell shape with a JIS tensile No. 2 dumbbell-shaped mold to obtain a measurement sample. Then, the sheet thickness of the synthetic resin is measured, a 1 cm marked line is drawn on the portion where the dumbbell width is 1 cm, and the distance between the marked lines in the vertical direction is 2 cm at a tensile speed of 200 mm / min in an environment at a measurement temperature of 23 ° C Until 100% modulus was measured.
（４）撥トルエン性評価法
　有機溶剤であるトルエンを、撥水加工を行った伸縮性繊維布帛の上に直径が５ｍｍになるようにスポイトにて滴下し、完全に浸透する時間を測定した。 (4) Toluene repellency evaluation method Toluene, which is an organic solvent, was dropped onto a stretchable fiber fabric subjected to water repellency treatment with a dropper so as to have a diameter of 5 mm, and the time for complete penetration was measured.
（５）繊維布帛の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）
　試料は、５ｃｍ幅とし、つかみ間隔は２０ｃｍ、引張速度は２００ｍｍ／分で、荷重０．５ｋｇｆと２．０ｋｇｆにて測定を行った。
（６）撥水度
　ＪＩＳ　Ｌ１０９２　スプレー法に準じて測定した。
（７）耐水圧
　ＪＩＳ　Ｌ１０９２　Ａ法　低水圧法に準じて測定した。
（８）透湿度
　ＪＩＳ　Ｌ１０９２　Ａ－１法（塩化カルシウム法）に準じて測定した。
（９）通気度
　ＪＩＳ　Ｌ１０１８　フラジール形に準じて測定した。 (5) Elongation rate in the warp direction of fiber fabric (JIS L1096 A method)
The sample was 5 cm wide, the gripping interval was 20 cm, the tensile speed was 200 mm / min, and the load was 0.5 kgf and 2.0 kgf.
(6) Water repellency Measured according to JIS L1092 spray method.
(7) Water pressure resistance Measured according to JIS L1092 A method low water pressure method.
(8) Moisture permeability Measured according to JIS L1092 A-1 method (calcium chloride method).
(9) Air permeability Measured according to JIS L1018 fragile type.
（１０）風合い
　試料の風合いについて、以下の基準に従って評価した。
　　◎：非常に柔らかい。
　　○：柔らかい。
　　△：若干硬い。
　　×：硬い (10) Texture The texture of the sample was evaluated according to the following criteria.
A: Very soft.
○: Soft.
Δ: Slightly hard
×: Hard
（１１）コーティング面の品位
　コーティング面の品位について、樹脂皮膜がコーティング面を覆っている状態を以下の基準に従って評価した。
　　○：コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている。
　　△：コーティング樹脂が、わずかに布帛に浸透しているが、ほぼ布帛のコーティング面が樹脂皮膜で覆われている。
　　×：コーティング樹脂のほとんどが、布帛に浸透して、コーティング面に樹脂皮膜がほとんど形成されていない。 (11) Quality of coating surface Regarding the quality of the coating surface, the state in which the resin film covers the coating surface was evaluated according to the following criteria.
○: The coating resin does not penetrate the fabric so much, and the coated surface of the fabric is covered with the resin film.
Δ: The coating resin slightly permeates the fabric, but the coated surface of the fabric is almost covered with the resin film.
X: Most of the coating resin penetrates into the fabric, and a resin film is hardly formed on the coating surface.
　［実施例１］
　３３ｄｔｅｘ／３６フィラメントのポリエステル糸を用いて、４０ゲージの緯編機を用いてスムース組織の編物を製編した。その後、常法により精練、染色を行った。染色加工後の編物の目付けは７４ｇ／ｍ２であった。また、編物の経方向の伸長率は、荷重０．５ｋｇｆで８．６％、荷重２．０ｋｇｆで２４．９％であった。 [Example 1]
Using a polyester yarn of 33 dtex / 36 filament, a knitted fabric having a smooth structure was knitted using a 40 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 74 g / m 2 . The warp direction elongation of the knitted fabric was 8.6% at a load of 0.5 kgf and 24.9% at a load of 2.0 kgf.
　次いで、上記で作製した編物を、処方１に示す、２種類のＣ６フッ素系撥水剤を用いた水溶液に浸漬し、マングルにて絞り（絞り率：５５重量％）、１２０℃で６０秒間乾燥した後、１６０℃で６０秒間熱処理を行って撥水加工を行った。撥水加工後に撥水加工布帛の撥トルエン性を評価したところ、１５３秒であった。 Next, the knitted fabric prepared above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents shown in Formula 1, squeezed with a mangle (squeezing ratio: 55% by weight), and dried at 120 ° C. for 60 seconds. After that, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 153 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
＜処方１＞
１）ＮＵＶＡ　２１１４ＬＩＱ　　－－－－－－－－－－－－－－－－－　　３．０重量％
（Ｃ６フッ素系撥水剤、クラリアントジャパン株式会社製）
２）ＡＲＫＯＰＨＯＢ　ＮＡＮＯ　２６０５ＬＩＱ　　－－－－－－－－　　３．０重量％
（Ｃ６フッ素系撥水剤、クラリアントジャパン株式会社製）
３）ナイスポールＦＥ－２６　　－－－－－－－－－－－－－－－－－－　　０．５重量％
（帯電防止剤、日華化学株式会社製）
４）メイカネートＴＰ１０　　－－－－－－－－－－－－－－－－－－－　　０．５重量％
（イソシアネート系架橋剤、明成化学工業株式会社製）
５）イソプロピルアルコール　－－－－－－－－－－－－－－－－－－－　　３．０重量％
（浸透助剤）
６）水　　　－－－－－－－－－－－－－－－－－－－－－－－－－－－　９０．０重量％ <Prescription 1>
1) NUVA 2114LIQ ---------------- 3.0% by weight
(C6 fluorine-based water repellent, manufactured by Clariant Japan Ltd.)
2) ARKOPHOB NANO 2605LIQ -------- 3.0% by weight
(C6 fluorine-based water repellent, manufactured by Clariant Japan Ltd.)
3) Nicepole FE-26 ----------------- 0.5% by weight
(Antistatic agent, manufactured by Nikka Chemical Co., Ltd.)
4) Meikanate TP10 ------------------ 0.5% by weight
(Isocyanate-based crosslinking agent, manufactured by Meisei Chemical Co., Ltd.)
5) Isopropyl alcohol ------------------- 3.0% by weight
(Penetration aid)
6) Water -------------------------- 90.0 wt%
　次いで、処方２に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、実施例１の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、９０ｇ／ｍ２であった。 Next, the synthetic resin solution shown in Formula 2 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain the stretch-coated fabric of Example 1. The fabric weight of this stretch coating fabric was 90 g / m 2 .
＜処方２＞
１）ＸＥ－５５７３　－－－－－－－－－－－－－－－－－－－－－　　１００．０重量部
（アクリル樹脂溶液（１００％モジュラス：９ｋｇｆ／ｃｍ２）、株式会社トウペ製）
２）レザミンＵＤ架橋剤　　－－－－－－－－－－－－－－－－－－　　　　２．０重量部
（ウレタン系架橋剤、大日精化工業株式会社製）
３）トルエン　　－－－－－－－－－－－－－－－－－－－－－－－　　　１７．０重量部
（希釈溶剤）
　合成樹脂溶液の粘度は、１５９００ｍＰａ・ｓ（Ｂ型粘度計（ＢＭ型）による）で、チクソトロピー指数は、２３℃で１．４４であった。 <Prescription 2>
1) XE-5573 -------------------- 100.0 parts by weight (acrylic resin solution (100% modulus: 9 kgf / cm 2 ), manufactured by Tope Corporation )
2) Resamine UD cross-linking agent ----------------- 2.0 parts by weight (urethane cross-linking agent, manufactured by Dainichi Seika Kogyo Co., Ltd.)
3) Toluene ---------------------- 17.0 parts by weight (diluent)
The viscosity of the synthetic resin solution was 15900 mPa · s (according to a B-type viscometer (BM type)), and the thixotropy index was 1.44 at 23 ° C.
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は１ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は３００ｍｍＨ２Ｏ、透湿度は６５６８ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、柔らかかった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。 The physical properties and the like of the obtained stretch coating fabric were confirmed. The air permeability was 1 cc / cm 2 · sec, the water pressure resistance was 300 mmH 2 O, the water vapor transmission rate was 6568 g / m 2 · 24 hours, and the water repellency was initial. Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
　［実施例２］
　２２ｄｔｅｘ／２４フィラメントのポリエステル糸を用いて、４０ゲージの緯編機を用いてスムース組織の編物を製編した。その後、常法により精練、染色を行った。染色加工後の編物の目付けは５５ｇ／ｍ２であった。また、編物の経方向の伸長率は、荷重０．５ｋｇｆで９．６％、荷重２．０ｋｇｆで２３．０％であった。 [Example 2]
Using a 22 dtex / 24 filament polyester yarn, a knitted fabric having a smooth structure was knitted using a 40 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 55 g / m 2 . The warp direction elongation of the knitted fabric was 9.6% at a load of 0.5 kgf and 23.0% at a load of 2.0 kgf.
　次いで、上記で作製した編物を上記の処方１の２種類のＣ６フッ素系撥水剤を用いた水溶液に浸漬し、マングルにて絞り（絞り率：５３重量％）、１２０℃で６０秒間乾燥した後、１６０℃で６０秒間熱処理を行って撥水加工を行った。撥水加工後に撥水加工布帛の撥トルエン性を評価したところ、１４４秒であった。 Next, the knitted fabric prepared above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents of the above-mentioned formulation 1, squeezed with a mangle (squeezing ratio: 53 wt%), and dried at 120 ° C. for 60 seconds. Thereafter, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 144 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
　次いで、上記の処方２に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、実施例２の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、７１ｇ／ｍ２であった。 Next, the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 2. The fabric weight of this stretch coating fabric was 71 g / m 2 .
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は１ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は２２０ｍｍＨ２Ｏ、透湿度は８３８４ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、柔らかかった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。 The physical properties and the like of the obtained stretch coating fabric were confirmed. The air permeability was 1 cc / cm 2 · sec, the water pressure resistance was 220 mmH 2 O, the water vapor transmission rate was 8384 g / m 2 · 24 hours, and the water repellency was the initial value. Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
　［実施例３］
　５６ｄｔｅｘ／４８フィラメントの６ナイロン糸を用いて、３２ゲージのトリコットの編物を製編した。その後、常法により精練、染色を行った。染色加工後の編物の目付けは１７８ｇ／ｍ２であった。また、編物の経方向の伸長率は、荷重０．５ｋｇｆで８．２％、荷重２．０ｋｇｆで１９．３％であった。 [Example 3]
A 32 gauge tricot knitted fabric was knitted using 6 nylon yarn of 56 dtex / 48 filament. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after the dyeing process was 178 g / m 2 . The warp direction elongation rate of the knitted fabric was 8.2% at a load of 0.5 kgf and 19.3% at a load of 2.0 kgf.
　次いで、上記で作製した編物を、上記の処方１の性能の異なる２種類のＣ６フッ素系撥水剤を用いた水溶液に浸漬し、マングルにて絞り（絞り率：５６重量％）、１２０℃で６０秒間乾燥した後、１６０℃で６０秒間熱処理を行って撥水加工を行った。撥水加工後に撥水加工布帛の撥トルエン性を評価したところ、１７４秒であった。
　次いで、上記の処方２に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、実施例３の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、１９４ｇ／ｍ２であった。 Next, the knitted fabric prepared above is immersed in an aqueous solution using two types of C6 fluorine-based water repellents having different performances of the above-mentioned formulation 1, and squeezed with a mangle (squeezing ratio: 56% by weight) at 120 ° C. After drying for 60 seconds, heat treatment was performed at 160 ° C. for 60 seconds to perform water-repellent processing. It was 174 seconds when the water-repellent fabric was evaluated for toluene repellency after the water-repellent treatment.
Next, the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 3. The fabric weight of this stretch coating fabric was 194 g / m 2 .
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は３ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は１８０ｍｍＨ２Ｏ、透湿度は７２４０ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、柔らかかった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 3 cc / cm 2 · sec, the water pressure resistance was 180 mmH 2 O, the water vapor transmission rate was 7240 g / m 2 · 24 hours, and the water repellency was initial. Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
　［実施例４］
　８４ｄｔｅｘ／７２フィラメントのポリエステル糸を用いて、２８ゲージの緯編機を用いてスムース組織の編物を製編した。その後、常法により精練、染色を行った。染色加工後の編物の目付けは１８８ｇ／ｍ２であった。また、編物の経方向の伸長率は、荷重０．５ｋｇｆで５．３％、荷重２．０ｋｇｆで１０．５％であった。
　次いで、上記で作製した編物を上記の処方１の性能の異なる２種類のＣ６フッ素系撥水剤を用いた水溶液に浸漬し、マングルにて絞り（絞り率：５４重量％）、１２０℃で６０秒間乾燥した後、１６０℃で６０秒間熱処理を行って撥水加工を行った。撥水加工後に撥水加工布帛の撥トルエン性を評価したところ、１６３秒であった。 [Example 4]
A knitted fabric having a smooth structure was knitted using a polyester yarn of 84 dtex / 72 filaments using a 28 gauge weft knitting machine. Thereafter, scouring and dyeing were performed by a conventional method. The basis weight of the knitted fabric after dyeing was 188 g / m 2 . The warp direction elongation of the knitted fabric was 5.3% at a load of 0.5 kgf and 10.5% at a load of 2.0 kgf.
Next, the knitted fabric produced above was immersed in an aqueous solution using two types of C6 fluorine-based water repellents having different performances of the above-mentioned prescription 1, squeezed with a mangle (squeezing ratio: 54 wt%), and 60 ° C. at 60 ° C. After drying for 2 seconds, heat treatment was performed at 160 ° C. for 60 seconds to perform water-repellent processing. It was 163 seconds when the toluene repellency of the water repellent fabric was evaluated after the water repellent treatment.
　次いで、上記の処方２に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、実施例４の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、２０４ｇ／ｍ２であった。 Next, the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain the stretch-coated fabric of Example 4. The fabric weight of this stretch coating fabric was 204 g / m 2 .
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は１ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は２２０ｍｍＨ２Ｏ、透湿度は８４５３ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、柔らかかった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。 The physical properties and the like of the obtained stretch coating fabric were confirmed. The air permeability was 1 cc / cm 2 · sec, the water pressure resistance was 220 mmH 2 O, the water vapor transmission rate was 8453 g / m 2 · 24 hours, and the water repellency was initial. Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film.
　［実施例５］
　実施例１で用いた編物の撥水加工布帛を使用して、処方３に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１９ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、実施例５の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、９３ｇ／ｍ２であった。 [Example 5]
Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 3 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 19 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Example 5. The fabric weight of this stretch coating fabric was 93 g / m 2 .
＜処方３＞
１）ＸＥ－５５７３　－－－－－－－－－－－－－－－－－－－－－　　１００．０重量部
（アクリル樹脂溶液（１００％モジュラス：９ｋｇｆ／ｃｍ２）、株式会社トウペ製）
２）レザミンＵＤ架橋剤　　－－－－－－－－－－－－－－－－－－　　　　２．０重量部
（ウレタン系架橋剤、大日精化工業株式会社製）
３）トルエン　　－－－－－－－－－－－－－－－－－－－－－－－　　　　６．０重量部
（希釈溶剤）
　合成樹脂溶液の粘度は、２４８００ｍＰａ・ｓ（Ｂ型粘度計（ＢＭ型）による）で、チクソトロピー指数は、２３℃で１．６９であった。 <Prescription 3>
1) XE-5573 -------------------- 100.0 parts by weight (acrylic resin solution (100% modulus: 9 kgf / cm 2 ), manufactured by Tope Corporation )
2) Resamine UD cross-linking agent ----------------- 2.0 parts by weight (urethane cross-linking agent, manufactured by Dainichi Seika Kogyo Co., Ltd.)
3) Toluene ----------------------- 6.0 parts by weight (diluted solvent)
The viscosity of the synthetic resin solution was 24800 mPa · s (according to a B-type viscometer (BM type)), and the thixotropy index was 1.69 at 23 ° C.
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は０．５ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は３６０ｍｍＨ２Ｏ、透湿度は６１６５ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。伸縮性コーティング布帛の風合いは、柔らかかった。コーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 0.5 cc / cm 2 · sec, the water pressure resistance was 360 mmH 2 O, the water vapor transmission rate was 6165 g / m 2 · 24 hours, and the water repellency performance was First grade, grade 3 after 20 washings. The texture of the stretch coating fabric was soft. When the quality of the coating surface was observed, the coating resin did not permeate the fabric so much that the coating surface of the fabric was covered with a resin film.
　［比較例１］
　実施例１で用いた編物の撥水加工布帛を使用して、処方４に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１８ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、比較例１の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、９２ｇ／ｍ２であった。 [Comparative Example 1]
Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 4 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 18 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 1. The fabric weight of this stretch coating fabric was 92 g / m 2 .
＜処方４＞
１）ＳＡ－６２１８　－－－－－－－－－－－－－－－－－－－－－　　１００．０重量部
（アクリル樹脂溶液（１００％モジュラス：４ｋｇｆ／ｃｍ２）、株式会社トウペ製）
２）レザミンＵＤ架橋剤　　－－－－－－－－－－－－－－－－－－　　　　２．０重量部
（ウレタン系架橋剤、大日精化工業株式会社製）
３）トルエン　　－－－－－－－－－－－－－－－－－－－－－－－　　　　８．０重量部
（希釈溶剤）
　合成樹脂溶液の粘度は、１５５００ｍＰａ・ｓ（Ｂ型粘度計（ＢＭ型）による）で、チクソトロピー指数は、２３℃で１．３２であった。 <Prescription 4>
1) SA-6218 -------------------- 100.0 parts by weight (acrylic resin solution (100% modulus: 4 kgf / cm 2 ), manufactured by Towpe Corporation )
2) Resamine UD cross-linking agent ----------------- 2.0 parts by weight (urethane cross-linking agent, manufactured by Dainichi Seika Kogyo Co., Ltd.)
3) Toluene ----------------------- 8.0 parts by weight (diluent)
The viscosity of the synthetic resin solution was 15500 mPa · s (according to a B-type viscometer (BM type)), and the thixotropy index was 1.32 at 23 ° C.
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は１２ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は９０ｍｍＨ２Ｏ、透湿度は８９６５ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、若干硬かった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、わずかに布帛に浸透しているが、ほぼ布帛のコーティング面が樹脂皮膜で覆われている状態であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 12 cc / cm 2 · sec, the water pressure resistance was 90 mmH 2 O, the water vapor transmission rate was 8965 g / m 2 · 24 hours, Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was slightly hard. Furthermore, when the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
　［比較例２］
　比較例１で使用した撥水処方を、以下の処方５のＣ８フッ素系撥水剤を用いて、撥水加工を行った。その後、処方４に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、比較例２の伸縮性コーティング布帛を得た。コーティング加工前に撥水加工布帛の撥トルエン性を評価したところ、６００秒以上経ってもトルエンは浸透しなかった。またこの伸縮性コーティング布帛の目付けは、９０ｇ／ｍ２であった。 [Comparative Example 2]
The water repellent prescription used in Comparative Example 1 was subjected to water repellent finishing using a C8 fluorine-based water repellent of the following prescription 5. Thereafter, the synthetic resin solution shown in Formula 4 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 2. When the water repellency of the water repellent fabric was evaluated before coating, toluene did not penetrate even after 600 seconds or more. The basis weight of the stretchable coating fabric was 90 g / m 2.
＜処方５＞
１）ＡＧ－７０００　　　－－－－－－－－－－－－－－－－－－－－－　　６．０重量％
（Ｃ８フッ素系撥水剤、旭硝子株式会社製）
２）ナイスポールＦＥ－２６　　－－－－－－－－－－－－－－－－－－　　０．５重量％
（帯電防止剤、日華化学株式会社製）
３）メイカネートＴＰ１０　　－－－－－－－－－－－－－－－－－－－　　０．５重量％
（イソシアネート系架橋剤、明成化学工業株式会社製）
４）イソプロピルアルコール　－－－－－－－－－－－－－－－－－－－　　３．０重量％
（浸透助剤）
５）水　　　－－－－－－－－－－－－－－－－－－－－－－－－－－－　９０．０重量％ <Prescription 5>
1) AG-7000 --------------------- 6.0 wt%
(C8 fluorine-based water repellent, manufactured by Asahi Glass Co., Ltd.)
2) Nicepole FE-26 ----------------- 0.5% by weight
(Antistatic agent, manufactured by Nikka Chemical Co., Ltd.)
3) Meikanate TP10 ------------------ 0.5% by weight
(Isocyanate-based crosslinking agent, manufactured by Meisei Chemical Co., Ltd.)
4) Isopropyl alcohol ------------------- 3.0% by weight
(Penetration aid)
5) Water -------------------------- 90.0 wt%
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は０．５ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は３００ｍｍＨ２Ｏ、透湿度は６３５０ｇ／ｍ２・２４時間、撥水性能は、初期４－５級、洗濯２０回後４級であった。さらに伸縮性コーティング布帛の風合いは、柔らかかった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、布帛にあまり浸透しておらず、布帛のコーティング面が樹脂皮膜で覆われている状態であった。以上のように、Ｃ８フッ素系撥水剤で加工したものは、物性的に良好であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 0.5 cc / cm 2 · sec, the water pressure was 300 mmH 2 O, the moisture permeability was 6350 g / m 2 · 24 hours, and the water repellency was The initial grade was 4-5 and the grade was 20 after washing. Furthermore, the texture of the stretch coating fabric was soft. Further, when the quality of the coating surface was observed, the coating resin did not penetrate the fabric so much that the coating surface of the fabric was covered with a resin film. As described above, the material processed with the C8 fluorine-based water repellent was excellent in physical properties.
　［比較例３］
　実施例１で用いた編物の撥水加工布帛を使用して、処方６に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１６ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、比較例３の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、９０ｇ／ｍ２であった。 [Comparative Example 3]
Using the knitted water-repellent fabric used in Example 1, the synthetic resin solution shown in Formula 6 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 16 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 3. The fabric weight of this stretch coating fabric was 90 g / m 2 .
＜処方６＞
１）ＳＡ－６２１８　－－－－－－－－－－－－－－－－－－－－－　　１００．０重量部
（アクリル樹脂溶液（１００％モジュラス：４ｋｇｆ／ｃｍ２）、株式会社トウペ製）
２）レザミンＵＤ架橋剤　　－－－－－－－－－－－－－－－－－－　　　　２．０重量部
（ウレタン系架橋剤、大日精化工業株式会社製）
３）トルエン　　－－－－－－－－－－－－－－－－－－－－－－－　　　　２．０重量部
（希釈溶剤）
　合成樹脂溶液の粘度は、１９４００ｍＰａ・ｓ（Ｂ型粘度計（ＢＭ型）による）で、チクソトロピー指数は、２３℃で１．４２であった。 <Prescription 6>
1) SA-6218 -------------------- 100.0 parts by weight (acrylic resin solution (100% modulus: 4 kgf / cm 2 ), manufactured by Towpe Corporation )
2) Resamine UD cross-linking agent ----------------- 2.0 parts by weight (urethane cross-linking agent, manufactured by Dainichi Seika Kogyo Co., Ltd.)
3) Toluene ---------------------- 2.0 parts by weight (diluted solvent)
The viscosity of the synthetic resin solution was 19400 mPa · s (according to a B-type viscometer (BM type)), and the thixotropy index was 1.42 at 23 ° C.
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は８ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は１４０ｍｍＨ２Ｏ、透湿度は７９２０ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。さらに伸縮性コーティング布帛の風合いは、若干硬かった。さらにコーティング面の品位を観察したところ、コーティング樹脂が、わずかに布帛に浸透しているが、ほぼ布帛のコーティング面が樹脂皮膜で覆われている状態であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 8 cc / cm 2 · sec, the water pressure resistance was 140 mmH 2 O, the water vapor transmission rate was 7920 g / m 2 · 24 hours, Grade 4 and grade 3 after 20 washes. Furthermore, the texture of the stretch coating fabric was slightly hard. Furthermore, when the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
［比較例４］
　実施例２で用いた編物に、処方７に示す、１種類のＣ６フッ素系撥水剤を用いた水溶液に浸漬し、マングルにて絞り（絞り率：５３重量％）、１２０℃で６０秒間乾燥した後、１６０℃で６０秒間熱処理を行って撥水加工を行った。撥水加工後に撥水加工布帛の撥トルエン性を評価したところ、３６秒であった。 [Comparative Example 4]
The knitted fabric used in Example 2 is immersed in an aqueous solution using one type of C6 fluorine-based water repellent shown in Formulation 7, drawn with a mangle (squeezing ratio: 53 wt%), and dried at 120 ° C. for 60 seconds. After that, heat treatment was performed at 160 ° C. for 60 seconds to perform water repellent processing. It was 36 seconds when the toluene repellency of the water repellent fabric was evaluated after the water repellent treatment.
＜処方７＞
１）ＮＵＶＡ　２１１４ＬＩＱ　　－－－－－－－－－－－－－－－－－　　６．０重量％
（Ｃ６フッ素系撥水剤、クラリアントジャパン株式会社製）
２）ナイスポールＦＥ－２６　　－－－－－－－－－－－－－－－－－－　　０．５重量％
（帯電防止剤、日華化学株式会社製）
３）メイカネートＴＰ１０　　－－－－－－－－－－－－－－－－－－－　　０．５重量％
（イソシアネート系架橋剤、明成化学工業株式会社製）
４）イソプロピルアルコール　－－－－－－－－－－－－－－－－－－－　　３．０重量％
（浸透助剤）
５）水　　　－－－－－－－－－－－－－－－－－－－－－－－－－－－　９０．０重量％ <Prescription 7>
1) NUVA 2114LIQ ----------------- 6.0 wt%
(C6 fluorine-based water repellent, manufactured by Clariant Japan Ltd.)
2) Nicepole FE-26 ----------------- 0.5% by weight
(Antistatic agent, manufactured by Nikka Chemical Co., Ltd.)
3) Meikanate TP10 ------------------ 0.5% by weight
(Isocyanate-based crosslinking agent, manufactured by Meisei Chemical Co., Ltd.)
4) Isopropyl alcohol ------------------- 3.0% by weight
(Penetration aid)
5) Water -------------------------- 90.0 wt%
　次いで、上記の処方２に示す合成樹脂溶液を、ナイフコータを用いて、フローティングナイフコート法にて塗布した。塗布量として、樹脂固形分が１７ｇ／ｍ２となるように前記編物に塗布した後、１２０℃で１分間熱処理した。その後、１５０℃で熱セットし、比較例４の伸縮性コーティング布帛を得た。この伸縮性コーティング布帛の目付けは、７２ｇ／ｍ２であった。 Next, the synthetic resin solution shown in the above prescription 2 was applied by a floating knife coating method using a knife coater. The coating amount was applied to the knitted fabric so that the resin solid content was 17 g / m 2, and then heat treated at 120 ° C. for 1 minute. Thereafter, heat setting was performed at 150 ° C. to obtain a stretch coated fabric of Comparative Example 4. The fabric weight of this stretch coating fabric was 72 g / m 2 .
　得られた伸縮性コーティング布帛に関して物性等を確認したところ、通気度は１０ｃｃ／ｃｍ２・ｓｅｃで、耐水圧は８０ｍｍＨ２Ｏ、透湿度は７４５３ｇ／ｍ２・２４時間、撥水性能は、初期４級、洗濯２０回後３級であった。伸縮性コーティング布帛の風合いは、硬かった。コーティング面の品位を観察したところ、コーティング樹脂が、わずかに布帛に浸透しているが、ほぼ布帛のコーティング面が樹脂皮膜で覆われている状態であった。 When the physical properties and the like of the obtained stretch coating fabric were confirmed, the air permeability was 10 cc / cm 2 · sec, the water pressure resistance was 80 mmH 2 O, the water vapor transmission rate was 7453 g / m 2 · 24 hours, and the water repellency was initial. Grade 4 and grade 3 after 20 washes. The texture of the stretch coating fabric was hard. When the quality of the coating surface was observed, the coating resin slightly permeated the fabric, but the coating surface of the fabric was almost covered with the resin film.
　以上説明した実施例１～５の結果を、表１にまとめて示す。また、比較例１～４の結果を表２にまとめて示す。 The results of Examples 1 to 5 described above are summarized in Table 1. The results of Comparative Examples 1 to 4 are summarized in Table 2.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
　表１に示されるように、実施例１～５に係る伸縮性コーティング布帛は、いずれもフッ素系撥水剤の撥トルエン性が１００秒以上、合成樹脂（コーティング樹脂）の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内、１００％モジュラスが５ｋｇｆ／ｃｍ２以上、という条件を満たしている。この結果、通気度は３ｃｃ／ｃｍ２・ｓｅｃ以下と小さく、十分な防風性を有している。また、耐水圧は１８０ｍｍＨ２Ｏ以上と高く、透湿度も６１６５ｇ／ｍ２・２４時間以上と高く、十分な透湿防水性を有している。 As shown in Table 1, all of the stretch coating fabrics according to Examples 1 to 5 have a toluene water repellency of a fluorine-based water repellent of 100 seconds or more, and a thixotropic index of a synthetic resin (coating resin) at 23 ° C. Within the range of 1.4 to 2.0, the condition that the 100% modulus is 5 kgf / cm 2 or more is satisfied. As a result, the air permeability is as small as 3 cc / cm 2 · sec or less, and it has a sufficient windproof property. Further, the water pressure resistance is as high as 180 mmH 2 O or more, the moisture permeability is as high as 6165 g / m 2 · 24 hours or more, and it has sufficient moisture permeability and waterproofness.
　また、撥水性能についても、初期４級、洗濯２０回後３級と十分な性能を有している。さらに、風合いも柔らかく、コーティング面の品位もほぼ布帛のコーティング面が樹脂皮膜で覆われている状態で、良好であった。 Also, with respect to water repellency, the initial grade 4 and grade 3 after 20 washings have sufficient performance. Furthermore, the texture was soft and the quality of the coated surface was good with the coated surface of the fabric covered with a resin film.
　これに対して、表２に示されるように、比較例１の伸縮性コーティング布帛は、合成樹脂（コーティング樹脂）の２３℃におけるチクソトロピー指数が１．３２であって、１．４～２．０の範囲内という条件を満たしておらず、１００％モジュラスが４ｋｇｆ／ｃｍ２で、５ｋｇｆ／ｃｍ２以上という条件を満たしていない。この結果、通気度が１２ｃｃ／ｃｍ２・ｓｅｃと大きく、防風性が不足している。また、耐水圧は９０ｍｍＨ２Ｏと低く、防水性にも問題がある。さらに、風合いも硬く、コーティング面の品位にも問題がある。 On the other hand, as shown in Table 2, the stretch coated fabric of Comparative Example 1 has a thixotropy index at 23 ° C. of the synthetic resin (coating resin) of 1.32. The 100% modulus is 4 kgf / cm 2 and the condition of 5 kgf / cm 2 or more is not satisfied. As a result, the air permeability is as large as 12 cc / cm 2 · sec, and the windproof property is insufficient. Further, the water pressure resistance is as low as 90 mmH 2 O, and there is a problem with waterproofness. Furthermore, the texture is hard and there is a problem with the quality of the coating surface.
　また、表２に示されるように、比較例２の伸縮性コーティング布帛は、通気度、耐水圧、透湿度、風合い及びコーティング面の品位には問題がないが、Ｃ６フッ素系撥水剤ではなくＣ８フッ素系撥水剤を使用しているため、環境に影響を及ぼすという問題が解決されていない。 Further, as shown in Table 2, the stretch coated fabric of Comparative Example 2 has no problem in air permeability, water pressure resistance, moisture permeability, texture, and coating surface quality, but is not a C6 fluorine-based water repellent. Since the C8 fluorine-based water repellent is used, the problem of affecting the environment has not been solved.
　また、表２に示されるように、比較例３の伸縮性コーティング布帛は、合成樹脂（コーティング樹脂）の２３℃におけるチクソトロピー指数は１．４２で、１．４～２．０の範囲内という条件を満たしているが、１００％モジュラスが４ｋｇｆ／ｃｍ２で、５ｋｇｆ／ｃｍ２以上という条件を満たしていない。この結果、通気度が８ｃｃ／ｃｍ２・ｓｅｃと大きく、防風性が不十分である。また、耐水圧も１４０ｍｍＨ２Ｏ以上とやや不足している。さらに、風合い及びコーティング面の品位にも問題がある。 In addition, as shown in Table 2, the stretch coated fabric of Comparative Example 3 has a condition that the synthetic resin (coating resin) has a thixotropy index at 23 ° C. of 1.42, which is within the range of 1.4 to 2.0. However, the 100% modulus is 4 kgf / cm 2 and the condition of 5 kgf / cm 2 or more is not satisfied. As a result, the air permeability is as large as 8 cc / cm 2 · sec, and the windproof property is insufficient. Further, the water pressure resistance is slightly insufficient with 140 mmH 2 O or more. Furthermore, there are problems with the texture and the quality of the coating surface.
　また、表２に示されるように、比較例４の伸縮性コーティング布帛は、合成樹脂（コーティング樹脂）の２３℃におけるチクソトロピー指数は１．４４で、１．４～２．０の範囲内という条件を満たしており、１００％モジュラスは９ｋｇｆ／ｃｍ２で、５ｋｇｆ／ｃｍ２以上という条件を満たしている。しかし、フッ素系撥水剤の撥トルエン性が３６秒と小さく、１００秒以上という条件を満たしていない。この結果、通気度が１０ｃｃ／ｃｍ２・ｓｅｃと大きく、防風性が不十分である。また、耐水圧も８０ｍｍＨ２Ｏ以上と不足している。さらに、風合い及びコーティング面の品位にも問題がある。 Further, as shown in Table 2, the stretch coated fabric of Comparative Example 4 has a condition that the synthetic resin (coating resin) has a thixotropy index at 23 ° C. of 1.44 and is in the range of 1.4 to 2.0. meets the 100% modulus in the 9kgf / cm 2, it meets the condition that 5kgf / cm 2 or more. However, the toluene water repellency of the fluorine-based water repellent is as small as 36 seconds and does not satisfy the condition of 100 seconds or more. As a result, the air permeability is as large as 10 cc / cm 2 · sec, and the windproof property is insufficient. Also, the water pressure resistance is insufficient with 80 mmH 2 O or more. Furthermore, there are problems with the texture and the quality of the coating surface.
　なお、表１に示されるように、実施例５に係る伸縮性コーティング布帛は、合成樹脂（コーティング樹脂）の２３℃におけるチクソトロピー指数が１．６９であり、実施例１～４に係る伸縮性コーティング布帛のチクソトロピー指数１．４４に比べて大きい。このため、通気度が０．５ｃｃ／ｃｍ２・ｓｅｃと小さく、防風性が特に優れている。また、耐水圧も３６０ｍｍＨ２Ｏと大きく、防水性にも優れている。 As shown in Table 1, the stretch coating fabric according to Example 5 has a thixotropy index at 23 ° C. of the synthetic resin (coating resin) of 1.69, and the stretch coating according to Examples 1 to 4 Larger than the thixotropy index 1.44 of the fabric. For this reason, the air permeability is as small as 0.5 cc / cm 2 · sec, and the windproof property is particularly excellent. Further, the water pressure resistance is as large as 360 mmH 2 O, and it is excellent in waterproofness.
　以上説明したように、本実施形態及び実施例に係る伸縮性コーティング布帛は、優れた透湿防水性及び防風性を有している。したがって、衣料分野で、アウトドア用途やスポーツ用途に好適に使用することができる。 As described above, the stretch-coated fabric according to the present embodiment and examples has excellent moisture permeability and waterproof properties and windproof properties. Therefore, it can be suitably used for outdoor use or sports use in the clothing field.
　本発明は、本発明の広義の精神と範囲を逸脱することなく、様々な実施形態及び変形が可能とされるものである。また、上述した実施形態及び実施例は、本発明を説明するためのものであり、本発明の範囲を限定するものではない。 The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments and examples are for explaining the present invention and do not limit the scope of the present invention.
　本出願は、２０１２年６月１１日に出願された日本国特許出願特願２０１２－１３２３０９号に基づく。本明細書中に日本国特許出願特願２０１２－１３２３０９号の明細書及び特許請求の範囲全体を参照として取り込むものとする。 This application is based on Japanese Patent Application No. 2012-132309 filed on June 11, 2012. In this specification, the entire specification and claims of Japanese Patent Application No. 2012-132309 are incorporated by reference.
　本発明に係る伸縮性コーティング布帛は、アウトドア用途やスポーツ用途に使用される衣料用布帛として適している。 The stretch coating fabric according to the present invention is suitable as a clothing fabric used for outdoor use and sports use.

Claims (11)

  1. 　伸縮性繊維布帛に、炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤を用いて撥水加工を施し、前記伸縮性繊維布帛の少なくとも片面に合成樹脂溶液を塗布して、合成樹脂からなるコーティング樹脂皮膜を形成した伸縮性コーティング布帛であって、
    　前記フッ素系撥水剤を用いて撥水加工を施した伸縮性繊維布帛の撥トルエン性が１００秒以上、前記合成樹脂溶液の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内であり、
    　前記合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２以上である伸縮性コーティング布帛。     The stretchable fiber fabric is subjected to water repellent treatment using a fluorine-based water repellent made of a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms, and a synthetic resin solution is applied to at least one surface of the stretchable fiber fabric. Is a stretch coating fabric in which a coating resin film made of a synthetic resin is formed,
    The stretchable fiber fabric subjected to water repellent treatment using the fluorine-based water repellent has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. of 1.4 to 2.0. Yes,
    An elastic coating fabric in which the synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
  2. 　前記合成樹脂がアクリル樹脂、ウレタン樹脂、シリコーン樹脂の中から選ばれる少なくとも１種類以上である請求項１に記載の伸縮性コーティング布帛。 The stretch coating fabric according to claim 1, wherein the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
  3. 　初期撥水性能（ＪＩＳ　Ｌ１０９２）が４級以上、洗濯２０回後の撥水性能が３級以上である請求項１または２に記載の伸縮性コーティング布帛。 The stretch coated fabric according to claim 1 or 2, wherein the initial water repellency (JIS L1092) is grade 4 or higher and the water repellency after 20 washings is grade 3 or higher.
  4. 　耐水圧性（ＪＩＳ　Ｌ１０９２　Ａ法）が１００～３０００ｍｍＨ２Ｏの範囲内で、透湿性が３０００ｇ／ｍ２・２４ｈｒ（ＪＩＳ　Ｌ１０９２　Ａ－１法）以上である請求項１乃至３のいずれか１項に記載の伸縮性コーティング布帛。 4. The water pressure resistance (JIS L1092 A method) is in the range of 100 to 3000 mmH 2 O, and the moisture permeability is 3000 g / m 2 · 24 hr (JIS L1092 A-1 method) or more. The stretch coating fabric as described.
  5. 　通気度が６ｃｃ／ｃｍ２・ｓｅｃ（ＪＩＳ　Ｌ１０１８　フラジール形法）以下である請求項１乃至４のいずれか１項に記載の伸縮性コーティング布帛。 The stretch-coated fabric according to any one of claims 1 to 4, having an air permeability of 6 cc / cm 2 · sec or less (JIS L1018 Frazier type method) or less.
  6. 　前記伸縮性繊維布帛が、２８ゲージ以上のハイゲージの編機で編まれた編物である請求項１乃至５のいずれか１項に記載の伸縮性コーティング布帛。 The stretch-coated fabric according to any one of claims 1 to 5, wherein the stretchable fiber fabric is a knitted fabric knitted by a high gauge knitting machine of 28 gauge or more.
  7. 　前記伸縮性繊維布帛が、総繊度８４ｄｔｅｘ以下のポリアミド繊維及び／またはポリエステル繊維を主体とした布帛であって、生地目付が２００ｇ／ｍ２以下であり、０．５ｋｇｆ荷重時の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）が、４５％以下で、２．０ｋｇｆ荷重時の経方向の伸長率が、７５％以下である請求項１乃至６のいずれか１項に記載の伸縮性コーティング布帛。 The stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf The stretch-coated fabric according to any one of claims 1 to 6, wherein (JIS L1096 A method) is 45% or less and an elongation rate in the warp direction at a load of 2.0 kgf is 75% or less.
  8. 　炭素数が６以下のパーフルオロアルキル基を含有する共重合体からなるフッ素系撥水剤を用いて撥水加工を施した伸縮性繊維布帛を用意する工程と、
    　前記伸縮性繊維布帛の少なくとも片面に合成樹脂を溶媒に溶解させてなる合成樹脂溶液を塗布する工程と、
    を含む伸縮性コーティング布帛の製造方法であって、
    　前記フッ素系撥水剤を用いて伸縮性布帛の撥トルエン性を１００秒以上にし、前記合成樹脂溶液の２３℃におけるチクソトロピー指数が１．４～２．０の範囲内であり、
    　前記合成樹脂の１００％モジュラスが５ｋｇｆ／ｃｍ２以上である伸縮性コーティング布帛の製造方法。     Preparing a stretchable fiber fabric subjected to water repellent treatment using a fluorine-based water repellent comprising a copolymer containing a perfluoroalkyl group having 6 or less carbon atoms;
    Applying a synthetic resin solution obtained by dissolving a synthetic resin in a solvent to at least one surface of the stretchable fiber fabric;
    A method for producing an elastic coating fabric comprising:
    Using the fluorine-based water repellent, the stretch fabric has a toluene repellency of 100 seconds or more, and the synthetic resin solution has a thixotropy index at 23 ° C. in the range of 1.4 to 2.0,
    A method for producing an elastic coating fabric, wherein the synthetic resin has a 100% modulus of 5 kgf / cm 2 or more.
  9. 　前記合成樹脂がアクリル樹脂、ウレタン樹脂、シリコーン樹脂の中から選ばれる少なくとも１種類以上である請求項８に記載の伸縮性コーティング布帛の製造方法。 The method for producing a stretch-coated fabric according to claim 8, wherein the synthetic resin is at least one selected from an acrylic resin, a urethane resin, and a silicone resin.
  10. 　前記伸縮性繊維布帛が、２８ゲージ以上のハイゲージの編機で編まれた編物である請求項８または９に記載の伸縮性コーティング布帛の製造方法。 The method for producing a stretch-coated fabric according to claim 8 or 9, wherein the stretchable fiber fabric is a knitted fabric knitted with a high gauge knitting machine of 28 gauge or more.
  11. 　前記伸縮性繊維布帛が、総繊度８４ｄｔｅｘ以下のポリアミド繊維及び／またはポリエステル繊維を主体とした布帛であって、生地目付が２００ｇ／ｍ２以下であり、０．５ｋｇｆ荷重時の経方向の伸長率（ＪＩＳ　Ｌ１０９６　Ａ法）が、４５％以下で、２．０ｋｇｆ荷重時の経方向の伸長率が、７５％以下である請求項８乃至１０のいずれか１項に記載の伸縮性コーティング布帛の製造方法。 The stretchable fiber fabric is a fabric mainly composed of a polyamide fiber and / or a polyester fiber having a total fineness of 84 dtex or less, and has a fabric basis weight of 200 g / m 2 or less, and an elongation rate in the warp direction at a load of 0.5 kgf The manufacturing method of the stretch-coated fabric according to any one of claims 8 to 10, wherein (JIS L1096 A method) is 45% or less and the elongation in the warp direction at a load of 2.0 kgf is 75% or less. Method.
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EP2860308A1 (en) 2015-04-15
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JP5596081B2 (en) 2014-09-24
US20150140884A1 (en) 2015-05-21
CN104364437A (en) 2015-02-18

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