EP0603410B1 - Tissu a l'epreuve de l'eau mais permeable a l'humidite et production de ce tissu - Google Patents

Tissu a l'epreuve de l'eau mais permeable a l'humidite et production de ce tissu Download PDF

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Publication number
EP0603410B1
EP0603410B1 EP93913547A EP93913547A EP0603410B1 EP 0603410 B1 EP0603410 B1 EP 0603410B1 EP 93913547 A EP93913547 A EP 93913547A EP 93913547 A EP93913547 A EP 93913547A EP 0603410 B1 EP0603410 B1 EP 0603410B1
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European Patent Office
Prior art keywords
resin
moisture
temperature
fabric
woven fabric
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EP93913547A
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German (de)
English (en)
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EP0603410A4 (en
EP0603410A1 (fr
Inventor
Munehide Kowatsu Seiren Co. Ltd. Yamaguchi
Hideki Kowatsu Seiren Co. Ltd. Chatani
S. Nagoya Res. & Dev. Center Mitsubishi HAYASHI
Y. Nagoya Res. & Dev. Ctr Mitsubushi SAKAGUCHI
Satoru Nagoya Res. & Dev. Ctr Mitsubishi KONDO
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Komatsu Seiren Co Ltd
Mitsubishi Heavy Industries Ltd
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Komatsu Seiren Co Ltd
Mitsubishi Heavy Industries Ltd
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Classifications

    • 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
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents 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
    • D06M15/568—Reaction products of isocyanates with polyethers
    • 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

Definitions

  • the present invention relates to a moisture-permeable waterproof fabric and a process for producing it. More particularly, the present invention is concerned with a comfortable moisture-permeable waterproof fabric, which can control the moisture permeability and heat retaining property so as to correspond with required bodily sensations, regarding warmth and coldness, and a process for producing it. In particular, it relates to such fabrics having on at least one surface a polyurethane resin fiber.
  • FR-A-2369815 describes a process for making polyurethane foam backed carpets for the automobile industry.
  • the polyurethane may be produced from an isocyanate, a polyether (obtainable by polymerization of an epoxide and having a molecular weight of 400 to 10,000) and a chain extender.
  • DE-A-2431846 discloses a process for laminating a fabric with a polyurethane coating by means of an adhesive in which respective solutions of the polyurethane and adhesive are applied, each solution containing the same solvent in order to improve the process.
  • the polyurethane may be produced from an isocyanate, a polyether (obtainable by polymerization of an epoxide and having a molecular weight of 600 to 4,000) and a chain extender.
  • An object of the present invention is to provide a moisture-permeable waterproof woven fabric having real comfortability, characterised by having a high heat retaining property when the service temperature is low while enjoying a high water-vapour permeability to provide coolness when the service temperature is high, and a process for producing it.
  • the present invention provides a moisture-permeable waterproof woven, knitted or non-woven fabric comprising a woven, knitted or non-woven fabric substrate and provided on at least one surface of the fabric substrate, a resin film comprising a polyurethane resin produced by reacting an isocyanate component with a polyol component and a chain extender and having a glass transition temperature in the range of from -20 to 20°C and an ethylene oxide unit content of at least 7.0 mol/kg.
  • the fabric useful for the present invention may comprise a chemical fiber, such as a polyester, polyamide, acrylic or rayon fiber, a natural fiber, such as cotton or wool, or a mixture thereof. They may be in the form of any of a woven fabric, a knitted fabric and a nonwoven fabric.
  • a component having a rigid structure serving to suppress the molecular motion is used for constituting the polyurethane resin to bring the glass transition temperature of the polyurethane resin to the range of from -20 to 20°C, thereby rendering the moisture permeability of the woven fabric highly dependent upon the temperature.
  • isocyanates commonly used in polyurethane may be used as the isocyanate component.
  • Preferred examples thereof include 4,4'-diphenylmethane diisocyanate (MDI), hydrogenated MDI, isophorone diisocyanate, 1,3-xylene diisocyanate, 2,4-tolylene diisocyanate and m-phenylene diisocyanate. They may be used alone or in the form of a mixture of two or more of them. MDI and hydrogenated MDI are still preferred from the viewpoint of rigidity of the molecular structure.
  • MDI 4,4'-diphenylmethane diisocyanate
  • hydrogenated MDI isophorone diisocyanate
  • 1,3-xylene diisocyanate 1,3-xylene diisocyanate
  • 2,4-tolylene diisocyanate 2,4-tolylene diisocyanate
  • m-phenylene diisocyanate m-phenylene diisocyanate
  • the chain extender may also be one known in the art.
  • Preferred examples thereof include ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, ethylenediamine, trimethylenediamine, isophoronediamine and water. They may be used alone or in the form of a mixture of two or more of them. Ethylene glycol, propylene glycol and water are particularly preferred from the viewpoint of rigidity of the molecular structure.
  • the polyol component may be one known in the art, and examples thereof include high-molecular weight diols, such as polyethylene glycol which is a product of addition homopolymerization of ethylene oxide, an ethylene oxide adduct of tetrahydrofuran which is a copolymer of ethylene oxide with another compound, an ethylene oxide adduct of bisphenol A, a condensate of adipic acid with ethylene oxide and an ethylene oxide adduct of polybutylene glycol adipate diol or polypropylene glycol adipate diol, and high-molecular weight diols not containing ethylene oxide, such as polytetramethylene glycol, polypropylene ether glycol, poly- ⁇ -caprolactone glycol, polybutyrolactone glycol, polypropylene glycol adipate diol and polybutylene glycol adipate diol. They may be used alone or in the form of a mixture of two or more
  • the polyol preferably has a molecular weight in the range of from 500 to 3,000.
  • the molecular weight is less than 500, the elastomeric performance of the resultant polyurethane resin is unsatisfactory, which results in poor durability during use.
  • the molecular weight is more than 3,000, conditions for synthesis are limited, which leads to a problem that when a film is formed from the resultant polyurethane resin, the film is opaque or exhibits a drawback such as fish eyes.
  • the polyol a mixture comprising polyethylene glycol and polytetramethylene glycol or a mixture comprising polyethylene glycol and an ester of ethylene oxide with adipic acid, the polyols having a molecular weight in the range of from 500 to 3,000.
  • the fraction of the ethylene oxide in the polyurethane resin obtained by formulating the polyol, isocyanate and chain extender is held at 7.0 mol/kg or more.
  • the polyurethane resin used in the present invention is produced by a one-shot process or a prepolymer process in the absence (bulk polymerization) or presence (solution polymerization) of a solvent.
  • the above-described polyurethane resin may be used in the form of a mixture with other urethane resins.
  • the other urethane resins include conventional urethane resins having a glass transition temperature of -20°C or below, such as an ether urethane resin, an ester urethane resin, a polycarbonate urethane resin, a urethane resin modified with an amino acid and a urethane resin modified with fluorine.
  • the ratio of the water vapor permeability at a high temperature to the water vapor permeability at a low temperature is preferably 1.4 or more from the viewpoint of ensuring the comfortability derived from the release from a sweaty feeling in a high-temperature and high-humidity environment and ensuring the comfortability derived from warmth in a low-temperature environment.
  • water vapor permeability (g/m 2 ⁇ 24 hr ⁇ mmHg) used herein is intended to mean a numerical value obtained by dividing the moisture permeability (g/m 2 ⁇ 24 hr) at the measuring temperature by the partial pressure of water vapor (mmHg).
  • the expression "at a low temperature” is intended to mean that the temperature within clothes is in the range of from 0 to 20°C
  • the expression “at a high temperature” is intended to mean that the temperature within clothes is in the range of from 20 to 50°C.
  • Conventional moisture-permeable waterproof woven fabrics having a high moisture permeability have a constant high water vapor permeability ratio, so that at a high temperature they positively release water vapor outside the clothes and, at the same time, the latent heat of water vapor is released outside the clothes also at a low temperature, which easily offers a good comfortability. Since, however, the water vapor permeability is high also at a low temperature, the latent heat of water vapor is released outside the clothes, so that the heat retaining property is poor.
  • the moisture permeability (g/m 2 ⁇ 24 hr) was measured according to a method specified in JIS L 1099 A-1.
  • conditions of a temperature of 5°C and a relative humidity of 90% were adopted as the low-temperature environment used in the measurement, and conditions of a temperature of 40°C and a relative humidity of 90% were adopted as the high-temperature environment used in the measurement.
  • Specific temperature and humidity in the high-temperature environment and the low temperature environment are not particularly limited.
  • the temperature range and humidity range within clothes to be controlled may be determined depending upon applications, and the temperature and humidity in each of the high-temperature environment and the low-temperature environment may be determined based on the ranges. Then, selection is effected in such a manner that the ratio of the water vapor permeability at a high temperature to the water vapor permeability at a low temperature becomes high.
  • the moisture permeability in a high-temperature environment i.e., at a temperature of 40°C and a relative humidity of 90%
  • the moisture permeability in a low-temperature environment i.e., at a temperature of 5°C and a relative humidity of 90%
  • the water pressure resistance is preferably 1,000 mmH 2 O or more.
  • the temperature at which water vapor is positively released and the temperature at which the heat retaining property is exhibited may be regulated by taking advantage of the glass transition temperature of the polyurethane resin depending upon the applications.
  • the glass transition temperature of the polyurethane resin used in the present invention is in the range of from -20 to 20°C from the viewpoint of the comfort of persons during usual work and exercise.
  • the moisture-permeable waterproof woven fabric of the present invention having the above-described constitution exhibits excellent moisture permeability in a high-temperature and high-humidity environment and reduces its moisture permeability in a low-temperature environment to exhibit an excellent heat-retaining property, which enables the temperature and humidity within products to be positively controlled.
  • a polar organic solvent solution containing the above-described polyurethane resin is coated on at least one surface of a woven fabric preferably at a coverage of 3 to 50 g/m 2 to form a coating which is subjected to solidification and removal of the solvent and then dried.
  • the coverage of the polyurethane resin is preferably in the range of from 3 to 10 g/m 2 after drying from the viewpoint of keeping the hand good.
  • a polyurethane resin film is further formed by wet coagulation or dry process on the film formed by the above-described method.
  • the polar organic solvent used as the solvent for the polyurethane resin mainly from water-soluble polar organic solvents, such as dimethylformamide (hereinafter referred to as "DMF"), dimethylacetamide and N-methylpyrrolidone, from the viewpoint of solubility of the resin in the solvent and ease of removing the solvent.
  • DMF dimethylformamide
  • isocyanate crosslinking agents, surfactants, etc. serve to form a crosslinked structure in the film by the heat treatment after the formation of the film, which contributes to an improvement in strength and durability of the film.
  • the solidification and removal of the solvent may be effected by the conventional wet solidification method.
  • An aqueous solution of the above-described solvent and water are preferably used as the coagulation bath.
  • the solidification temperature is preferably in the range of from 5 to 50°C from the viewpoint of regulating the diameter of pores formed in the resin film to a suitable range.
  • Water is preferably used for removing the solvent.
  • the temperature at which the solvent is removed is preferably in the range of from 10 to 80°C.
  • the woven fabric is then dried by the conventional method. In this case, the drying temperature is preferably in the range of from 60 to 140°C.
  • a water repellency treatment may be effected according to need after drying for the purpose of imparting durable water repellency to the woven fabric.
  • water repellency treatment use may be made of known water repellents. Further, in order to improve the quality of the woven fabric product, it is preferred to further subject the woven fabric to finish setting.
  • the woven fabric may be subjected to a water repellency treatment or a calendering treatment before it is coated with the resin.
  • the resin film formed by the wet process easily becomes porous to provide a moisture-permeable waterproof woven fabric having a good moisture permeability.
  • a volatile organic solvent solution containing the above-described polyurethane resin is coated on a release paper preferably at a coverage of 50 to 200 g/m 2 to form a resin film. Then, an adhesive resin is applied onto the resin film and, if necessary, dried at 40 to 150°C. It is then laminated to at least one surface of a woven fabric, and the release paper is peeled off.
  • the coverage of the polyurethane resin after drying is preferably in the range of from 10 to 50 g/m 2
  • preferred examples of the volatile solvent include toluene, methyl ethyl ketone, isopropyl alcohol and dimethylformamide.
  • Ultraviolet absorbers, antioxidants, foaming agents, etc. may be added to the resin solution.
  • both a porous resin film and a nonporous resin film can be produced.
  • isocyanate crosslinking agents, surfactants, etc. may also be added to the resin solution.
  • the isocyanate crosslinking agents serve to form a crosslinked structure in the film by the heat treatment after the formation of the film, which contributes to an improvement in strength and durability of the film.
  • a resin film may be applied by the dry process according to the present invention onto the surface of a resin film of a moisture-permeable waterproof woven fabric prepared from a conventional polyurethane resin.
  • the waterproof woven fabric prepared by this method has a water pressure resistance of 10,000 mmH 2 O or more.
  • the moisture permeability depends upon the temperature. Specifically, when the service temperature is low, the movement of water vapor, that is, the movement of latent heat, is inhibited to maintain the heat retaining property, while when the service temperature is high, water vapor is positively passed through the woven fabric to release latent heat, which prevents occurrence of a sweaty state and a rise in temperature. Therefore, use of the moisture-permeable waterproof woven fabric of the present invention in wind breakers, ski wear, working clothes, shoes, etc.
  • clothes that have a waterproofing property, exhibit an excellent heat retaining property when the body is not warmed up yet before exercise or in an early stage of exercise, and a high water vapor permeability when the body is in a warmed state during or after exercise, are less likely to cause a sweaty state, can provide a cool feeling, are comfortable and have good hand.
  • the moisture permeability and water pressure resistance were measured respectively in accordance with JIS L 1099 A-1 and JIS L 1092 (by a low water pressure method for products having a water pressure resistance of 2,000 mmH 2 O (1.96kPa) or less and a high water pressure method for products having a water pressure resistance exceeding 2,000 (1.96kPa) mmH 2 O).
  • a polyester ponzee woven fabric (75D-72F for both warps and wefts, end spacing: 101 yarns/inch (2.54 cm), pick spacing: 80 yarns/inch (2.54 cm)) was subjected to padding with a 10% aqueous solution of Asahi Guard AG710 as a fluoro water repellent, and the padded woven fabric was dried and cured.
  • a polyol was dissolved in DMF at 50°C with stirring, and a diisocyanate was placed therein. The mixture was stirred for about one hr to provide a prepolymer. Then, a chain extender was added thereto dropwise to cause a polymerization reaction, thereby providing a DMF solution of 25% by weight of polyurethane resin.
  • MDI as the diisocyanate
  • polyethylene glycol having a molecular weight of 2,000 and polyethylene glycol adipate diol having a molecular weight of 1,200 each as the polyol and ethylene glycol as the chain extender were mixed together in a molar ratio of 3.4 : 0.5 : 0.5 : 2.5.
  • the glass transition temperature of the resultant polyurethane resin was 0.2°C, and the fraction of ethylene oxide in the polymer was 8.4 mol/kg.
  • a resin solution prepared by adding 10 parts by weight of DMF and 1 part by weight of Resamine NE (manufactured by Dainichiseika Color & Chemicals) as an isocyanate crosslinking agent to 100 parts by weight of the above-described solution and mixing them with each other was coated on one surface of the above-described woven fabric at a coverage of 15 g/m 2 , and the coating was solidified in an aqueous solution for 5 min. Thereafter, the solvent was removed with water at 25°C, and the treated woven fabric was washed, dried, subjected to a fluoro oiliness water repellency treatment and then subjected to finish setting at 150°C to provide a coated woven fabric.
  • Resamine NE manufactured by Dainichiseika Color & Chemicals
  • the coverage of the polyurethane resin after drying was 5 g/m 2 .
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and water vapor permeability ratio (dependency of the moisture permeability upon environment ranging from low-temperature environment to high-temperature environment). The results are given in Table 1.
  • a polyester ponzee woven fabric (75D-72F for both warps and wefts, end spacing: 101 yarns/inch (2.54 cm), pick spacing: 80 yarns/inch (2.54 cm)) was subjected to padding with a 10% aqueous solution of Asahi Guard AG 710 as a fluoro water repellent, and the padded woven fabric was dried and cured.
  • a polyol was dissolved in DMF at 50°C with stirring, and a diisocyanate was placed therein. The mixture was stirred for about one hr to provide a prepolymer. Then, a chain extender was added thereto dropwise to cause a polymerization reaction, thereby providing a DMF solution of 25% by weight of polyurethane resin.
  • MDI as the diisocyanate
  • polyethylene glycol having a molecular weight of 2,000 and polyethylene glycol adipate diol having a molecular weight of 1,200 each as the polyol and 1,4-butanediol as the chain extender were mixed together in a molar ratio of 1.2 : 0.7 : 0.2 : 0.2.
  • the glass transition temperature of the resultant polyurethane resin was 3.0°C, and the fraction of ethylene oxide in the polymer was 11.3 mol/kg.
  • a resin solution prepared by adding 10 parts by weight of DMF and 1 part by weight of Resamine NE (manufactured by Dainichiseika Color & Chemicals) as an isocyanate crosslinking agent to 100 parts by weight of the above-described solution and mixing them with one another was coated on one surface of the above-described woven fabric at a coverage of 15 g/m 2 , and the coating was solidified in an aqueous solution for 5 min. Thereafter, the solvent was removed with water at 25°C, and the treated woven fabric was washed, dried, subjected to a fluoro oiliness water repellency treatment and then subjected to finish setting at 150°C to provide a coated woven fabric.
  • Resamine NE manufactured by Dainichiseika Color & Chemicals
  • the coverage of the polyurethane resin after drying was 5 g/m 2 .
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and water vapor permeability ratio (dependency of the moisture permeability upon environment ranging from low-temperature environment to high-temperature environment). The results are given in Table 1.
  • a polyester ponzee woven fabric (75D-72F for both warps and wefts, end spacing: 101 yarns/inch (2.54 cm), pick spacing: 80 yarns/inch (2.54 cm)) was subjected to padding with a 10% aqueous solution of Asahi Guard AG710 as a fluoro water repellent, and the padded woven fabric was dried and cured.
  • a polyol was dissolved in DMF at 50°C with stirring, and a diisocyanate was placed therein. The mixture was stirred for about one hr to provide a prepolymer.- Then, a chain extender was added thereto dropwise to cause a polymerization reaction, thereby providing a DMF solution of 25% by weight of polyurethane resin.
  • MDI as the diisocyanate
  • polyethylene glycol having a molecular weight of 2,000 and polytetramethylene glycol having a molecular weight of 2,000 each as the polyol and ethylene glycol as the chain extender were mixed together in a molar ratio of 3.3 : 0.5 : 0.5 : 2.4.
  • the glass transition temperature of the resultant polyurethane resin was -8.5°C, and the fraction of ethylene oxide in the polymer was 7.4 mol/kg.
  • a resin solution prepared by adding 20 parts by weight of methyl ethyl ketone and 80 parts by weight of toluene to 100 parts by weight of the above-described solution and mixing them with one another was coated on a release paper at a coverage of 80 g/m 2 , and the coating was dried at 120°C. Then, a resin solution prepared by adding 60 parts by weight of toluene and 10 parts by weight of Resamine NE (manufactured by Dainichiseika Color & Chemicals) as an isocyanate crosslinking agent was added to 100 parts by weight of an ether polyurethane resin as a binder resin and mixing them with one another was coated on the resultant resin film and laminated on one surface of the above-described woven fabric.
  • Resamine NE manufactured by Dainichiseika Color & Chemicals
  • the laminate was aged for 24 hr, and the release paper was peeled off to provide a laminate woven fabric.
  • the coverage of the polyurethane resin after drying was 15 g/m 2 .
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a laminate fabric was prepared in the same manner as that of Example 3, except that a polyester knit (a tricot of 30 d and 20 gauge) was used as the fabric, and MDI as the diisocyanate, polyethylene glycol having a molecular weight of 2,000 and polytetraethylene glycol having a molecular weight of 2,000 each as the polyol and ethylene glycol as the chain extender were used in a molar ratio of 3.30 : 0.55 : 0.45 : 2.40.
  • the glass transition temperature of the polyurethane resin was -18°C, and the fraction of ethylene oxide in the polymer was 7.8 mol/kg.
  • the laminate fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a mixed resin solution having the following composition was coated on one surface of the same fabric as that used in Example 4, and the coating was solidified in an aqueous solution for 5 min. Thereafter, the solvent was removed with water at 25°C, and the coating was then dried to provide a fabric having a porous film at a coverage of 27 g/m 2 .
  • Ester polyurethane resin 100 parts Dimethylformamide 80 parts Resamine NE (manufactured by Dainichiseika Color & Chemicals) 1 part
  • Example 4 a fabric having a porous film and a nonporous film was prepared using the same resin and method as those of Example 4.
  • the laminate fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a coated woven fabric was prepared in the same manner as that of Example 2, except that MDI, polyethylene glycol, polyethylene glycol adipate diol and 1,4-butanediol were used in a molar ratio of 3.3 : 0.3 : 0.7 : 2.4.
  • the glass transition temperature of the polyurethane resin was 0.8°C, and the fraction of ethylene oxide in the polymer was 4.54 mol/kg.
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a coated woven fabric was prepared in the same manner as that of Example 2, except that the polyurethane resin used had a glass transition temperature of -50°C.
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a coated woven fabric was prepared in the same manner as that of Example 2, except that the polyurethane resin used had a glass transition temperature of -50°C and a high moisture permeability.
  • the coated woven fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.
  • a laminate fabric was prepared in the same manner as that of Example 4, except that the polyurethane resin used had a glass transition temperature of -50°C.
  • the laminate fabric thus obtained was subjected to measurement of moisture permeability, water pressure resistance and the ratio of water vapor permeability at a high temperature to water vapor permeability at a low temperature. The results are given in Table 1.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)

Claims (9)

  1. Tissu tissé, tricoté ou non tissé, étanche à l'eau et perméable à l'humidité, comprenant un substrat de tissu tissé, tricoté ou non tissé, et, disposé sur au moins une surface dudit substrat, un film de résine comprenant une résine de polyuréthanne obtenue par réaction d'un constituant isocyanate et d'un constituant polyol, et un agent d'extension de chaíne, et ayant une température de transition vitreuse comprise entre -20 et 20°C et une teneur en motifs oxyde d'éthylène d'au moins 7,0 moles/kg.
  2. Tissu selon la revendication 1, dans lequel le constituant polyol comprend un mélange comprenant du polyéthylèneglycol et du polytétraméthylglycol, les polyols ayant une masse moléculaire comprise entre 500 et 3000.
  3. Tissu selon la revendication 1, dans lequel le constituant polyol comprend un mélange comprenant du polyéthylèneglycol et un ester de l'oxyde d'éthylène avec l'acide adipique, les polyols ayant une masse moléculaire comprise entre 500 et 3000.
  4. Tissu selon l'une quelconque des revendications 1 à 3, dans lequel le film de résine est poreux.
  5. Tissu selon l'une quelconque des revendications 1 à 3, dans lequel le film de résine est non poreux.
  6. Tissu selon l'une quelconque des revendications 1 à 5, ayant un rapport entre la perméabilité à la vapeur d'eau à haute température et la perméabilité à la vapeur d'eau à basse température de 1,4 ou plus.
  7. Tissu selon l'une quelconque des revendications 1 à 5, ayant une perméabilité à l'humidité dans un environnement à basse température inférieure à 1000 g/m2.24 h et une perméabilité à l'humidité dans un environnement à haute température de 8000 g/m2.24 h ou plus.
  8. Procédé de production d'un tissu étanche à l'eau et perméable à l'humidité, qui comprend les étapes consistant à enduire au moins une surface d'un substrat de tissu tissé, tricoté ou non tissé d'une solution d'une résine dans un solvant organique polaire, la résine comprenant une résine de polyuréthane obtenue par réaction d'un constituant isocyanate avec un constituant polyol et un agent d'extension de chaíne et ayant une température de transition vitreuse comprise entre -20 et 20°C et une teneur en motifs oxyde d'éthylène d'au moins 7,0 moles/kg, et à soumettre l'enduction à une solidification par voie humide dans un bain de coagulation pour former un film.
  9. Procédé de production d'un tissu étanche à l'eau et perméable à l'humidité, qui comprend les étapes consistant : (1) à enduire un papier anti-adhésif d'une solution d'une résine dans un solvant organique polaire pour former un film de résine, la résine comprenant une résine de polyuréthane obtenue par réaction d'un constituant isocyanate avec un constituant polyol et un agent d'extension de chaíne et ayant une température de transition vitreuse comprise entre -20 et 20°C et une teneur en motifs oxyde d'éthylène d'au moins 7,0 moles/kg, et (2) à faire adhérer ledit film de résine à au moins une surface d'un substrat de tissu tissé, tricoté ou non tissé, à l'aide d'un adhésif de façon à former un stratifié de ladite résine, dudit adhésif et dudit substrat.
EP93913547A 1992-06-19 1993-06-18 Tissu a l'epreuve de l'eau mais permeable a l'humidite et production de ce tissu Expired - Lifetime EP0603410B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP160978/92 1992-06-19
JP16097892 1992-06-19
JP20672092 1992-08-03
JP206720/92 1992-08-03
PCT/JP1993/000827 WO1994000631A1 (fr) 1992-06-19 1993-06-18 Tissu a l'epreuve de l'eau mais permeable a l'humidite et production de ce tissu

Publications (3)

Publication Number Publication Date
EP0603410A1 EP0603410A1 (fr) 1994-06-29
EP0603410A4 EP0603410A4 (en) 1996-04-03
EP0603410B1 true EP0603410B1 (fr) 1998-09-02

Family

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Application Number Title Priority Date Filing Date
EP93913547A Expired - Lifetime EP0603410B1 (fr) 1992-06-19 1993-06-18 Tissu a l'epreuve de l'eau mais permeable a l'humidite et production de ce tissu

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Country Link
EP (1) EP0603410B1 (fr)
KR (1) KR960004914B1 (fr)
DE (1) DE69320774T2 (fr)
TW (1) TW242659B (fr)
WO (1) WO1994000631A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6348422B1 (en) 1997-10-23 2002-02-19 Komatsu Seiren Co., Ltd. Moisture-permeable waterproof fabric, and moisture permeable resin film backed with release paper to be used for the production of the fabric
JP4949066B2 (ja) * 2007-02-21 2012-06-06 帝人ファイバー株式会社 衣類用防水透湿性布帛
JP5350316B2 (ja) * 2010-05-14 2013-11-27 小松精練株式会社 耐久性のある透湿性防水シート用ポリウレタン樹脂組成物、透湿性防水シートおよびその製造方法
KR102298944B1 (ko) * 2014-02-06 2021-09-06 고마쓰 마테레 가부시키가이샤 방수 직물 및 이것을 이용한 섬유 제품

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Publication number Priority date Publication date Assignee Title
DE2431846C3 (de) * 1974-07-02 1979-01-11 Bayer Ag, 5090 Leverkusen Verfahren zur Beschichtung von textlien, bahnförmigen Unterlagen nach dem Umkehrverfahren mit Polyurethanlösungen
DE2748085A1 (de) * 1976-11-04 1978-05-18 Mobay Chemical Corp Verfahren zur herstellung von teppichrueckenbeschichtungen
JPS59158252A (ja) * 1983-03-01 1984-09-07 ジヤパンゴアテツクス株式会社 透湿性の優れた防水材料
JPS59199869A (ja) * 1983-04-25 1984-11-13 旭化成株式会社 繊維製品の製法
JPS61245376A (ja) * 1985-04-23 1986-10-31 セイコ−化成株式会社 透湿性防水布
DE3800434A1 (de) * 1988-01-09 1989-07-20 Bayer Ag Hitzehaertbare beschichtungszusammensetzung auf polyurethanharnstoff-basis
JPH0268366A (ja) * 1988-09-02 1990-03-07 Kanebo Ltd ドライタッチなコーティング布帛
JPH03294581A (ja) * 1990-04-12 1991-12-25 Seikoh Chem Co Ltd コーティング布帛の製造方法
JP3074335B2 (ja) * 1991-06-12 2000-08-07 ユニチカ株式会社 透湿性防水布帛及びその製造方法

Also Published As

Publication number Publication date
EP0603410A4 (en) 1996-04-03
EP0603410A1 (fr) 1994-06-29
TW242659B (fr) 1995-03-11
DE69320774D1 (de) 1998-10-08
KR960004914B1 (ko) 1996-04-17
DE69320774T2 (de) 1999-01-21
WO1994000631A1 (fr) 1994-01-06

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