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Synthetic leather prepared from non-woven fabric and slurry and its production method

A production method and technology for synthetic leather, applied in the field of synthetic leather, can solve the problems of not being used, waste rot and polluting the environment, etc., and achieve the effects of balanced flatness, soft texture and good plasticity

Inactive Publication Date: 2004-08-04
徐银松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these scraps are not used at present, and they are left to rot and pollute the environment as waste.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The present invention is described in further detail below in conjunction with embodiment.

[0049] The microfiber scrap synthetic leather of the embodiment of the present invention consists of non-woven fabric and slurry.

[0050] 1. The production process of non-woven fabrics: mix 60% of shredded kraft fiber, 20% of nylon, 10% of polyester, and 10% of acrylic according to weight %, and after being loosened by the opening machine, send it to the carding machine with a fan, and then After being loosened by the opening machine, it is sent to the cotton curtain net of the acupuncture machine for pre-acupuncture once at a frequency of 500 times / min, twice for upper needling at a frequency of 700 times / min, and three times for up and down high-speed needling at a frequency of 800 times / min, according to the width requirements, hot rolling after trimming, the temperature is 150°C, winding, the speed is 8m / min.

[0051] 2. Preparation of pasty impregnating liquid: mix 100 pa...

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PUM

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Abstract

A synthetic leather is prepared from non-woven fabric and slurry. Said non-woven fabric is prepared from the fibres of small-area leather and chemical fibres. Said slurry is prepared from polyurethane resin, solvent, assistant, pigment and wooden powder. Its preparing process includes such steps as immersing non-woven fabric in slurry, rolling, scrapping, coagulating, washing, squeezing, baking, grinding, wet coating, solidifying, water washing, baking, and coating film or polishing. Its advantages are high quality and low cost.

Description

technical field [0001] The invention relates to a synthetic leather, in particular to a superfiber synthetic leather made from scraps of cow, pig and sheepskin scraps and a production method thereof. Background technique [0002] With the improvement of living standards, leather is used to make leather pants or other leather goods more and more except for making leather shoes. The demand for leather is increasing, and there are more and more scraps produced. Most of these leftover scraps are not utilized at present, but are allowed to rot and pollute the environment as waste. A small part is used, and it is only made into fibers, then added with a binder and then pressed into a block, which is peeled into sheets by a peeler, dried or dried in the sun, and then made into shoes. bottom use. Contents of the invention [0003] The purpose of the present invention is to turn waste into treasure, make full use of the leftover scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12
Inventor 徐银松
Owner 徐银松
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