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Water-proof and air-permeable coating process based on polysulfonamide fabric

A waterproof and breathable polysulfone fiber technology, which is applied in the field of waterproof and breathable coating technology, can solve the problems of high moisture regain and unfavorable use of polysulfone fibers, and achieve the effect of overcoming moisture resistance and good waterproof and breathable effects

Active Publication Date: 2012-03-28
JIANGSU LIANHONG TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the high moisture regain of polysulfone fiber, it is easy to absorb air, which is not conducive to its use in rainy and snowy weather, damp environment and other conditions.

Method used

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  • Water-proof and air-permeable coating process based on polysulfonamide fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Use 35g of LAG-710A to carry out water-repellent treatment on the sulfonamide fabric, and pad it once on the MU504-A bench-top padding machine, and the rolling liquid rate is 70%;

[0026] 2) Dry at l10°C for 90s and bake at l60°C for 1min;

[0027] 3) Prime the fabric with PU-9 adhesive and coating agent successively, and dry at 90°C for 2 minutes;

[0028] 4) Intermediate coat the fabric with PU-9 adhesive and coating agent successively, and dry at 100°C for 3 minutes;

[0029] 5) Surface-coat the fabric with PU-9 adhesive and coating agent successively, and dry at 150°C for 4 minutes to obtain a sulfonamide waterproof and breathable fabric.

[0030] The prepared sulfonamide waterproof and breathable fabric structure comprises: a fabric layer, an adhesive layer and a coating layer, wherein the adhesive layer and the coating layer are alternately distributed successively.

[0031] The waterproof and breathable indicators of the coated sulfonamide fabric obtained a...

Embodiment 2

[0033] 1) Use 32g of LAG-710A to carry out water-repellent treatment on the sulfonamide fabric, and pad it once on the MU504-A bench-top padding machine, and the rolling liquid rate is 65%;

[0034] 2) Dry at l10°C for 100s and bake at l60°C for 1min;

[0035] 3) Prime the fabric with PU-9 adhesive and coating agent successively, and dry at 85°C for 2 minutes;

[0036] 4) Intermediate coat the fabric with PU-9 adhesive and coating agent successively, and dry at 95°C for 3 minutes;

[0037] 5) Surface-coat the fabric with PU-9 adhesive and coating agent successively, and dry at 145°C for 4 minutes to obtain the sulfonamide waterproof and breathable fabric.

[0038] The prepared sulfonamide waterproof and breathable fabric structure comprises: a fabric layer, an adhesive layer and a coating layer, wherein the adhesive layer and the coating layer are alternately distributed successively.

[0039] The waterproof and air-permeable indicators of the coated sulfonamide fabric obtai...

Embodiment 3

[0041] 1) Use 38g of LAG-710A to carry out water-repellent treatment on the sulfonamide fabric, and pad it once on the MU504-A bench-top padding machine, and the rolling liquid rate is 75%;

[0042] 2) Dry at l10°C for 80s and bake at l60°C for 1min;

[0043] 3) Prime the fabric with PU-9 adhesive and coating agent successively, and dry at 95°C for 2 minutes;

[0044] 4) Intermediate coat the fabric with PU-9 adhesive and coating agent successively, and dry at 105°C for 3 minutes;

[0045] 5) Surface-coat the fabric with PU-9 adhesive and coating agent successively, and dry at 155°C for 4 minutes to obtain the waterproof and breathable sulfonamide fabric.

[0046] The prepared sulfonamide waterproof and breathable fabric structure comprises: a fabric layer, an adhesive layer and a coating layer, wherein the adhesive layer and the coating layer are alternately distributed successively.

[0047] The waterproof and air-permeable index of the polysulfone fiber fabric obtained af...

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Abstract

The invention discloses a water-proof and air-permeable coating process based on a polysulfonamide fabric. A process flow comprises pre-water repellency treatment, drying, baking, primary coating, drying, floating coating, drying, surface coating and drying. By adopting the water-proof and air-permeable coating process based on the polysulfonamide fabric, the waterproofness and the air permeability of the polysulfonamide fabric are greatly enhanced, and the application range of the polysulfonamide fabric is widened.

Description

technical field [0001] The invention relates to a process for treating sulfonamide fabrics with water-based polyurethane as a coating agent, and further relates to a waterproof and breathable coating process based on sulfone fibers. Background technique [0002] Aramid sulfone fiber is a high-temperature-resistant fiber developed by Shanghai Textile Science Research Institute and Shanghai Synthetic Fiber Research Institute and has independent intellectual property rights. It belongs to the para-aramid fiber series, and its scientific name is polyphenylsulfone terephthalamide fiber, which is formed by polycondensation of 4,4'-diaminodiphenylsulfone, 3,3'-diaminodiphenylsulfone and terephthaloyl chloride. Fiber strength 3.0~4.5 g / d, elongation at break 20%~25%, initial modulus 760 kg / mm 2 , specific gravity 1.416 g / mm 3 . The chemical structural formula of sulfone fiber is: [0003] [0004] Polysulfone fibers have excellent heat resistance, thermal stability and high-t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/564D06M101/36
Inventor 王华王姗姗査小刚
Owner JIANGSU LIANHONG TEXTILE
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