Soft leather processing process

A processing technology, leather technology, applied in leather manufacturing, leather impregnation, leather surface treatment, etc., can solve the problem of not being able to achieve natural leather indicators, and achieve the effect of leather softness

Inactive Publication Date: 2016-09-14
ANHUI CHUANGRONG CLOTHING ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of science, although the performance of synthetic leather will be closer and closer to that of natural leather, it will never reach the target of natural leather.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0014] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0015] A kind of soft leather processing technology, its concrete steps are:

[0016] (1) Preparation of raw materials: prepare wet cowhide and peel it to a thickness of 2-2.2mm;

[0017] (2) Washing: wash the leather with water for 5-9 minutes, the temperature is controlled at 30-40 ° C, the washing amount is 300%, and then 0.3% Tetrlix SMS is added to wash for 20-30 minutes;

[0018] (3) Neutralization: after washing with water, add 50% water and neutralize at 30-35°C;

[0019] (4) Retanning: add 0.5% Chromopol SG for leather retanning;

[0020] (5) Dyeing and fatliquoring: add dyeing agent to dye the leather, and then carry out the fatliquoring process. The components of the dyeing agent are: sodium formate 1.5%, Sellasol NG1.5%, Kastanie N4%...

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PUM

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Abstract

The invention provides a soft leather processing process. The soft leather processing process comprises the following steps: raw material preparing, washing, neutralizing, retanning, dyeing and fat-liquoring, and post-processing. By adopting the processing method provided by the invention, the leather obtains enough softness; and surface fat-liquoring is carried out by use of an unstable fat-liquoring agent, heating, pressurizing, pressing and ironing are carried out after drying, so that the leather is softer.

Description

technical field [0001] The invention relates to the field of leather processing, in particular to a soft leather processing technology. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. With the development of science, although the performance of synthetic leather will be closer and closer to natural leather, it can never reach the index of natural leather. The reason for this is that the properties of leather come from life science. Animal skin is a part of life. The profundity and mystery of life science cannot be imitated by general physics and chemistry. People can synthesize cow insulin, but they must not synthesize bulls, cows and goats. In addition, leather produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B1/02C14B15/10C14C1/00C14C3/08C14C9/02C14C11/00C14C15/00
CPCC14B1/02C14B15/10C14B2700/01C14C1/00C14C3/08C14C9/02C14C11/00C14C15/00
Inventor 汪卫芬
Owner ANHUI CHUANGRONG CLOTHING ACCESSORIES
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