Method for preparation of waterborne polyurethane impregnated superfine fiber synthetic leather base

A water-based polyurethane and microfiber technology, applied in the leather field, can solve problems such as hidden health problems of employees, poor environmental protection, increased burden, etc., and achieve the effects of good sustainable development, good ventilation function, and soft hand feeling.

Active Publication Date: 2015-12-16
ZHEJIANG FANSHENG MICROFIBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing solvent-based polyurethane has complex components and poor environmental protection, which will cause certain pollution to the environment; during the production process, it will cause hidden dangers to the health of employees, so the production lin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]A method for preparing a water-based polyurethane impregnated superfine fiber synthetic leather base, comprising the following steps: coating a water-based polyurethane slurry on a release paper, pasting a superfine fiber non-woven fabric, performing infrared heating and hot air drying; Perform impregnation to obtain water-based polyurethane impregnated superfine fiber synthetic leather bass; wherein, the veneer slurry formula is: 50 parts of water-based hydrolysis-resistant polyurethane type A, 50 parts of water-based non-hydrolysis-resistant polyurethane type B, 0.15 parts of water-based color paste, and 0.15 parts of water-based thickener. 0.1 parts of thickener, 0.8 parts of water-based leveling agent, 0.05 parts of water-based defoamer, 10 parts of environmentally friendly fillers; the impregnation slurry formula is: 60 parts of water-based hydrolysis-resistant foaming polyurethane type C, 40 parts of water-based hydrolysis-resistant resin type B 0.5 parts of water-b...

Embodiment 2

[0051] A method for preparing a water-based polyurethane impregnated superfine fiber synthetic leather base, comprising the following steps: coating a water-based polyurethane slurry on a release paper, pasting a superfine fiber non-woven fabric, performing infrared heating and hot air drying; Perform impregnation to obtain water-based polyurethane impregnated superfine fiber synthetic leather bass; wherein, the veneer slurry formula is: 50 parts of water-based hydrolysis-resistant polyurethane type A, 50 parts of water-based non-hydrolysis-resistant polyurethane type B, 0.55 parts of water-based color paste, and 0.55 parts of water-based thickener. 0.3 parts of thickener, 1 part of water-based leveling agent, 0.12 parts of water-based defoamer, 13 parts of environmentally friendly fillers, and 3 parts of modified nano-alumina; the impregnated slurry formula is: water-based hydrolysis-resistant foaming polyurethane type C 60 40 parts of water-based hydrolysis-resistant resin ty...

Embodiment 3

[0062] A method for preparing a water-based polyurethane impregnated superfine fiber synthetic leather base, comprising the following steps: coating a water-based polyurethane slurry on a release paper, pasting a superfine fiber non-woven fabric, performing infrared heating and hot air drying; Perform impregnation to obtain water-based polyurethane impregnated superfine fiber synthetic leather bass; wherein, the veneer slurry formula is: 50 parts of water-based hydrolysis-resistant polyurethane type A, 50 parts of water-based non-hydrolysis-resistant polyurethane type B, 1 part of water-based color paste, and 1 part of water-based thickener. 0.5 parts of thickener, 1.5 parts of water-based leveling agent, 0.2 parts of water-based defoamer, 15 parts of environmentally friendly fillers, and 5 parts of modified nano-silica; the impregnation slurry formula is: water-based hydrolysis-resistant foaming polyurethane type C 60 parts, 40 parts of water-based hydrolysis-resistant resin t...

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PUM

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Abstract

The invention relates to a method for preparation of a waterborne polyurethane impregnated superfine fiber synthetic leather base. The method includes the steps: coating waterborne polyurethane slurry on release paper, pasting a superfine fiber nonwoven fabric and carrying out infrared heating and hot-air drying; after cooling, carrying out impregnation to obtain the waterborne polyurethane impregnated superfine fiber synthetic leather base. Since only moisture volatilization exists in a production process, environment friendliness is realized; no harmful gas is generated in a production environment, and operators are protected from health hazards; due to the fact that waterborne materials in the waterborne polyurethane impregnated superfine fiber synthetic leather base have hydrophilic groups, excellent moisture permeability is achieved; after alkali deweighting and splitting, the waterborne polyurethane impregnated superfine fiber synthetic leather base is excellent in breathability. Compared with a traditional methylbenzene deweighting process, the alkali deweighting process in production of the waterborne polyurethane impregnated superfine fiber synthetic leather base has the advantage of high sustainability.

Description

technical field [0001] The invention belongs to the field of leather, in particular to a method for preparing an environmentally friendly and sustainable water-based polyurethane impregnated superfine fiber synthetic leather base. Background technique [0002] The composition of solvent-based polyurethane is complex, poor in environmental protection, and will cause certain pollution to the environment; the production process will cause hidden dangers to the health of employees, so the production line must invest a certain amount of equipment costs to prevent air pollution in the workshop, which increases the burden on the enterprise. [0003] Since water-based polyurethane uses water as the dispersion medium, no organic solvent is needed in the processing process, so it has no pollution to the environment and no health hazards to operators. Moreover, water-based polyurethane has low odor and is not easy to burn, and the processing process is safe and reliable. [0004] The w...

Claims

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Application Information

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IPC IPC(8): D06N3/14B32B37/02B32B37/26B32B27/04B32B9/04
Inventor 孙进琳王友忠李银林姜沈富
Owner ZHEJIANG FANSHENG MICROFIBER PROD
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