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Wet waterproof moisture-permeable leather production method

A waterproof and moisture-permeable, production method technology, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of clothing mildew damage, poor moisture permeability, stuffy and airtight, etc., and it is not easy to achieve Mildew damage, high water pressure resistance, comfortable wearing effect

Active Publication Date: 2014-11-12
江苏协孚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Artificial leather materials are often used in apparel products. Conventional artificial leather is made by applying a wet mixture on the base fabric to form a wet base, and then pasting a dry process veneer on the wet base. Because the human body often sweats during exercise, it gives people a stuffy and airtight feeling, which affects the comfort of wearing. Wearing wet clothes for a long time can easily lead to bacterial infection of the human skin, and it is also easy to cause mildew and damage to the clothes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A kind of production method of wet-process waterproof moisture-permeable leather, concrete steps are as follows:

[0020] Step 1: Wet Mixing Ingredients:

[0021] a. Stir 5kg of dimethylformamide and 0.5kg of white pulp at high speed for 80 minutes, then use 240-mesh nylon mesh to filter and set aside;

[0022] b. Mix and stir 80kg dimethylformamide, 1kg cell regulator and 1kg bridging agent for 20 minutes, then add the filtered mixture in step a and stir evenly for later use;

[0023] c. Add 100kg of polyurethane wet-process waterproof and moisture-permeable resin to the mixture formed in step b, stir for 30 minutes, and defoam for 40 minutes;

[0024] Step 2: Coating production:

[0025] Squeeze the degassed slurry in step 1 on the textile nylon fabric fiber, immerse it in a dimethylformamide aqueous solution with a mass percentage concentration of 15% for solidification, and then go through at least one water rolling process, then wash and wash with w...

Embodiment 2

[0026] Embodiment 2: a kind of wet-process waterproof and moisture-permeable leather production method, concrete steps are as follows:

[0027] Step 1: Wet Mixing Ingredients:

[0028] a. Stir 8 kg of dimethylformamide and 1 kg of white pulp at high speed for 90 minutes, then use 240-mesh nylon mesh to filter for later use;

[0029] b. Mix and stir 90kg dimethylformamide, 2kg cell regulator and 1.5kg bridging agent for 25 minutes, then add the filtered mixture in step a and stir evenly for later use;

[0030] c. Add 100kg of polyurethane wet-process waterproof and moisture-permeable resin to the mixture formed in step b, stir for 35 minutes, and defoam for 45 minutes;

[0031] Step 2: Coating production:

[0032] Squeeze the defoamed slurry in step 1 on the textile nylon fabric fibers, immerse it in an aqueous solution of dimethylformamide with a concentration of 18% by mass for solidification, and then go through at least one water rolling process, then wash and wash with w...

Embodiment 3

[0033] Embodiment 3: A kind of production method of wet-process waterproof moisture-permeable leather, concrete steps are as follows:

[0034] Step 1: Wet Mixing Ingredients:

[0035] a. Stir 10kg of dimethylformamide and 2kg of white pulp at high speed for 100 minutes, then use 240-mesh nylon mesh to filter for later use;

[0036] b. Mix and stir 100kg dimethylformamide, 3kg cell regulator and 2kg bridging agent for 30 minutes, then add the filtered mixture in step a and stir evenly for later use;

[0037] c. Add 100kg of polyurethane wet-process waterproof and moisture-permeable resin to the mixture formed in step b, stir for 40 minutes, and defoam for 50 minutes;

[0038] Step 2: Coating production:

[0039] Squeeze the defoamed slurry in step 1 on the textile nylon fabric fibers, immerse it in a 20% aqueous solution of dimethylformamide for solidification, and then go through at least one water rolling process, then wash and wash with water. Drying at a vehicle speed of...

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PUM

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Abstract

The invention discloses a wet waterproof moisture-permeable leather production method. The method comprises the following steps: uniformly mixing 5-10 parts of dimethyl formamide with 0.5-2 parts of acolor paste, and filtering; adding 80-100 parts of dimethyl formamide, 1-3 parts of a cell modifier and 1-2 parts of a bridging agent, and uniformly mixing; adding 100kg of a polyurethane wet waterproof moisture-permeable resin, uniformly stirring, and deaerating to obtain a coating; knife-coating the coating on a base cloth, solidifying, squeezing, washing with water, and drying to obtain a finished product. A wet waterproof moisture-permeable layer with moisture-permeable cell structure is formed after the wet slurry is knife-coated on the base cloth, and has good water permeability and high water pressure resistance. A result of detection shows that the water pressure resistance of the wet waterproof moisture-permeable layer is greater than 5000mm.H2O (JISL1092B standard), and the moisture permeability of the wet waterproof moisture-permeable layer is greater than 5000g / m<2>.d (JISL 1099B standard). Clothes made by using the obtained wet waterproof moisture-permeable leather have the advantages of comfortable wearing, difficult moldy damage and durability.

Description

technical field [0001] The invention relates to a production method of artificial leather, in particular to a production method of wet-process waterproof and moisture-permeable leather. Background technique [0002] Artificial leather materials are often used in apparel products. Conventional artificial leather is made by applying a wet mixture on the base fabric to form a wet base, and then pasting a dry process veneer on the wet base. Because the human body often sweats during exercise, it gives people a stuffy and airtight feeling, which affects the comfort of wearing. Wearing wet clothes for a long time can easily lead to bacterial infection of the human skin, and it is also easy to cause mildew and damage to the clothes. Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides a production method of wet-process waterproof and moisture-permeable leather. The production method of wet-process waterproof and moist...

Claims

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Application Information

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IPC IPC(8): D06N3/14B32B27/12B32B27/40
Inventor 吴月红皇甫觉明吴玉华蒋华亮张炎丁琪殷桂花陈利安
Owner 江苏协孚新材料科技有限公司
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