Coating fabric with high water pressure resistance and high moisture penetrability and preparation process thereof

A preparation process and water pressure resistance technology, which is applied in the direction of layered products, textile material processing, synthetic resin layered products, etc., can solve the problems of complex process and low water pressure resistance, achieve good wear resistance and reduce drainage Effect of resistance, high moisture permeability

Inactive Publication Date: 2010-12-29
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water pressure resistance of this kind of fabric is not high, and the polytetrafluoroethylene film is combined with the fiber fabric, and the process is more complicated.

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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  • Coating fabric with high water pressure resistance and high moisture penetrability and preparation process thereof
  • Coating fabric with high water pressure resistance and high moisture penetrability and preparation process thereof
  • Coating fabric with high water pressure resistance and high moisture penetrability and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Such as figure 1 As shown, the high water pressure and high moisture permeability coating fabric of the present invention includes a load-bearing layer 4, a waterproof layer 3 coated on the load-bearing layer 4, and a microporous layer 2 coated on the waterproof layer 3, which is characterized in that : the coated fabric also includes a protective layer 1 coated on the microporous layer 2, and the protective layer 1 is a wear-resistant coating with a microporous structure.

[0070] The slurry of the waterproof layer 3 is: 83.3% of two-component polyether polyurethane, 12.5% ​​of solvent, 2.5% of curing agent, and 1.7% of accelerator. The coating amount of the waterproof layer 3 is 4g / m in terms of solid content 2 .

[0071] Microporous layer 2 slurry contains 52.3% of aromatic polyether type polyurethane, butanone / toluene (12 / 24) 18.7%, trimer type polyisocyanate curing agent / polyfunctional group aziridine curing agent (5 parts by weight) / 1) 1.6%, defoamer / leveling...

Embodiment 2

[0075] as attached image 3 As shown, the high water pressure and high moisture permeability coating fabric of the present invention is prepared by the following process:

[0076] 1. Use a water-repellent agent to treat pongee with water-repellent treatment;

[0077] 2. Carry out calendering treatment on the base fabric after water-repellent treatment;

[0078] 3. Prepare the waterproof layer 3 slurry, and apply the waterproof layer 3 slurry on the base fabric to form the waterproof layer 3;

[0079] 4. Drying of waterproof layer 3;

[0080] The drying of the waterproof layer 3 is carried out in three temperature zones, the temperature ranges of each temperature zone are 90°C, 120°C, and 150°C respectively, and the drying time of each temperature zone is 0.8 minutes.

[0081] 5. Coating the microporous waterproof and moisture-permeable slurry on the waterproof layer 3 to form the microporous layer 2;

[0082] a. The preparation of the microporous layer 2 slurry: the batchi...

Embodiment 3

[0092] Compared with Example 1, the differences are:

[0093] The base fabric is nylon spinning;

[0094] The content of the two-component polyether polyurethane in the slurry of the waterproof layer 3 is 80%; the coating amount of the waterproof layer 3 is 3g / m in terms of solid content 2 .

[0095] The microporous layer 2 slurry contains 45% of aromatic polyether polyurethane and 12% of acetone / toluene (12 / 24) by weight, and the coating amount of microporous layer 2 is calculated by solid content: 20g / m 2 .

[0096] The slurry of the protective layer 1 is: polyurethane 70%, MCC microporous agent 2%, and the coating amount of the protective layer 1 is 3g / m in terms of solid content 2 .

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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Abstract

The invention discloses a coating fabric with high water pressure resistance and high moisture penetrability, which comprises a bearing layer, a waterproof layer coated on the bearing layer, a micropore layer coated on the waterproof layer and a protective layer coated on the micropore layer, wherein the protective layer is a wear-resistant coating with a micropore structure and is a hydrophilic waterproof and penetrable polyurethane coating with a hydrophilic function; the micropore layer in the middle is a micropore waterproof and penetrable polyurethane coating with a micropore structure; and the bottom layer of the fabric coating is a waterproof layer which has favorable film formation property and can provide a hydrophilic waterproof and penetrable polyurethane coating with high water pressure resistance. The fabric provided by the invention has the characteristics of higher water pressure resistance, high penetrability and wearing comfortability.

Description

technical field [0001] The invention relates to a coated fabric and a preparation process thereof, in particular to a coating fabric with high water pressure resistance and high moisture permeability and a preparation process thereof. Background technique [0002] The waterproof and moisture-permeable coated fabrics in the prior art are mainly hydrophilic waterproof and moisture-permeable coated fabrics. The moisture permeability mechanism of hydrophilic waterproof and moisture-permeable coated fabrics is due to the contact between sweat vapor and the surface of the fabric, and it is transmitted to the outside world through hydrophilic groups. The biggest problem with this kind of fabric is that the hydrophilic group absorbs water molecules, making the fabric very thick, wet and cold, and the human body will feel uncomfortable when wearing it. In contrast, microporous waterproof and moisture-permeable fabrics appear to be more suitable for the wearing comfort requirements o...

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): D06N3/14D06B3/10D06B15/08B32B3/24B32B27/12B32B27/08
Inventor 高诚贤曹明华杨沛
Owner CHINESE TEXTILE ACAD
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