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Waterproof and moisture-permeable textile

A waterproof and moisture-permeable textile technology, applied in the direction of protective clothing, layered products, synthetic resin layered products, etc., can solve the problems of water resistance decline, hard hand feeling, affecting water pressure resistance, etc., and achieve high water pressure resistance and soft hand feeling , high moisture permeability effect

Inactive Publication Date: 2017-12-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wet coating can form a waterproof and breathable polyurethane microporous resin layer. Water vapor can be conducted to the outside through the microporous structure, so as to achieve the purpose of moisture permeability. However, the microporous structure will affect the water pressure resistance. In order to improve the water pressure resistance, it is generally considered to add Large amount of coating, but this will make the hand feel hard and affect the wearing comfort
For example, the patent document CN103866579A discloses a breathable, waterproof, and moisture-permeable coating fabric and its processing method and application. In order to achieve 500-8000mmH 2 O water pressure resistance, wet coating is required, and it needs to be coated twice to make the thickness of the resin film reach 15-35um, but the increase in the thickness of the resin film will cause the hand feel to become hard and affect the wearing comfort
[0005] Laminated textiles are obtained by laminating hydrophilic polyurethane non-porous membranes with fabrics. The hydrophilicity of the resin film is used to transmit water vapor to the surface of the fabrics to obtain moisture permeability. However, such products last for a long time When it rains or gets wet, the rainwater will be transferred from the surface to the inner layer, resulting in a decrease in waterproofness
For example, the patent document CN102687921A discloses a waterproof and moisture-permeable composite fabric. The fabric is obtained by laminating, but the adhesive is easy to peel off when it is rained or soaked for a long time, which affects the waterproof and moisture-permeable durability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Waterproof and moisture-permeable textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The plain weave fabric of warp yarn 70D nylon and weft yarn 160D nylon is processed as follows: gray cloth→scouring→dyeing→waterproof setting→calendering to obtain a woven fabric with a warp and weft density of 232*68 pieces / inch as the base fabric. The coefficient is 2795;

[0034] Then on the calendering surface of the above-mentioned base cloth, the method of wet coating is applied to coat a layer of microporous polyurethane resin layer with a thickness of 15um to obtain a coated product;

[0035] Then use a non-porous hydrophilic polyurethane resin film with a thickness of 15um to bond with the above-mentioned coating products. The bonding conditions are: 120°C*10m / min, and the adhesion amount of the adhesive polyurethane resin is 15g / m 2 , matured for 24 hours at a temperature of 40°C and a humidity of 70% to obtain a semi-finished product;

[0036] Finally, the warp-knitted fabric is selected as the lining to be bonded to the other side of the semi-finished produ...

Embodiment 2

[0038] The plain weave fabric of warp yarn 70D nylon and weft yarn 160D nylon is processed as follows: gray cloth→scouring→dyeing→waterproof setting→calendering to obtain a woven fabric with a warp and weft density of 232*68 pieces / inch as the base fabric. The coefficient is 2795;

[0039] Then on the calendering surface of the above-mentioned base cloth, the method of wet coating is applied to coat a layer of microporous polyurethane resin layer with a thickness of 5um to obtain a coated product;

[0040] Then use a non-porous hydrophilic polyurethane resin film with a thickness of 10um to bond with the above-mentioned coating products. The bonding conditions: 120°C*10m / min, the adhesion of the adhesive polyurethane resin is 15g / m 2 , matured for 24 hours at a temperature of 40°C and a humidity of 70% to obtain a semi-finished product;

[0041] Finally, the warp-knitted fabric is selected as the lining to be bonded to the other side of the semi-finished product, and the spec...

Embodiment 3

[0043] The plain weave fabric of warp yarn 70D nylon and weft yarn 160D nylon is processed as follows: gray cloth→scouring→dyeing→waterproof setting→calendering to obtain a woven fabric with a warp and weft density of 232*68 pieces / inch as the base fabric. The coefficient is 2795;

[0044] Then on the calendering surface of the above-mentioned base cloth, the method of wet coating is applied to coat a layer of microporous polyurethane resin layer with a thickness of 20um to obtain a coated product;

[0045] Then use a non-porous hydrophilic polyurethane resin film with a thickness of 20um to bond with the above-mentioned coating products. The bonding conditions are: 120°C*10m / min, and the adhesion amount of the adhesive polyacrylate resin is 15g / m 2 , matured for 24 hours at a temperature of 40°C and a humidity of 70% to obtain a semi-finished product;

[0046] Finally, the warp-knitted fabric is selected as the lining to be bonded to the other side of the semi-finished produ...

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Abstract

The invention discloses a waterproof and moisture-permeable textile. The textile sequentially comprises a base cloth, a micro-porous polyurethane resin film, a nonporous polyurethane resin film laminated by using an adhesive, and a liner, wherein the micro-porous polyurethane resin film is obtained through coating the base cloth with polyurethane resin. The textile having high waterproof property, high moisture permeability and soft hand feeling is obtained by using a nonporous film laminating technology and a wet coating technology, and can be used to make climbing clothes, winter jackets, fishing wears and various other clothes having special uses.

Description

technical field [0001] The invention relates to a waterproof and moisture-permeable textile. Background technique [0002] At present, there are various types of waterproof and moisture-permeable textiles on the market, including high-density textured, coated, and laminated textiles. [0003] Among them, the high-density textiles use the yarns themselves to be arranged more closely, and the gaps between the yarns are further filled after calendering, so as to obtain a certain water pressure resistance, but generally below 1000Pa; and the gaps that are not completely filled, It can also give textiles better moisture permeability and moisture permeability. [0004] Coated textiles, both wet and dry. Wet coating can form a waterproof and breathable polyurethane microporous resin layer. Water vapor can be conducted to the outside through the microporous structure, so as to achieve the purpose of moisture permeability. However, the microporous structure will affect the water pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40B32B27/06B32B27/12B32B3/24B32B7/12B32B33/00A41D31/02
CPCB32B27/40A41D31/02B32B3/266B32B7/12B32B27/08B32B27/12B32B33/00B32B2307/304B32B2307/554B32B2307/726
Inventor 高进华秋月健司藤田和哉罗周荣
Owner TORAY FIBER RES INST(CHINA) CO LTD
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