Water washing resistant bovine hide clothing leather processing process

A processing technology and technology of garment leather, applied in the field of garment fabric processing, can solve the problems of environmental pollution, ecological environment damage and high price

Inactive Publication Date: 2017-09-15
HEFEI YUANKE GARMENT DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But it has some deficiencies: the one, resource is limited; The 2nd, cause environmental pollution, chromium is as a kind of heavy metal, the waste liquid that produces when tanning raw hide with it, dander etc. all inevitably contain trivalent chromium, these chromium-containing wastes It will inevitably cause harm to the ecological environment, and trivalent chromium is easily oxidized to generate hexavalent chromium during use, so it is the current research goal to develop a tanning agent that is environmentally friendly and has good tanning effects; Disadvantages such as complicated process
[0005] Apparel leather is required to be washed many times, but at present, it is easy to cause the handle of garment leather to become hard after repeated washing. This is because the small molecular compounds in it are washed away, which reduces the feel of the leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of water-resistant cowhide garment leather processing technology provided by the present embodiment, said water-washable cowhide garment leather processing technology comprises the following steps:

[0033] (1) Cowhide pre-treatment: Check the cowhide to see if there are cracks in the leather board, whether the folds are rotten and hair loss, sew up the cracks, cut off the rotten parts, remove the sundries stuck to the cowhide, and then soak and cook after suturing ;

[0034] (2) Soaking: Soak the cowhide with water for 1 day in summer and 2-3 days in winter;

[0035] (3) Deashing;

[0036] (4) Pickling: soak the delimed cowhide in a hydrochloric acid solution with a mass fraction of 10% for 2-4 hours, and the volume ratio of the cowhide to the hydrochloric acid solution is 1:4;

[0037] (5) Tanning: Add 4.2% aluminum tanning agent to the acid solution in step (4), soak for 30 minutes, then add 0.8% sodium formate, soak for 30 minutes, then add 0.6% baking soda...

Embodiment 2

[0052] A kind of water-resistant cowhide garment leather processing technology provided by the present embodiment, said water-washable cowhide garment leather processing technology comprises the following steps:

[0053] (1) Cowhide pre-treatment: Check the cowhide to see if there are cracks in the leather board, whether the folds are rotten and hair loss, sew up the cracks, cut off the rotten parts, remove the sundries stuck to the cowhide, and then soak and cook after suturing ;

[0054] (2) Soaking: Soak the cowhide with water for 1 day in summer and 2-3 days in winter;

[0055] (3) Deashing;

[0056] (4) Pickling: Soak the delimed cowhide in a hydrochloric acid solution with a mass fraction of 10% for 2-4 hours, and the volume ratio of cowhide to hydrochloric acid solution is 1:2;

[0057] (5) Tanning: Add 3.0% aluminum tanning agent to the acid solution in step (4), soak for 30 minutes, then add 1.3% sodium formate, soak for 30 minutes, then add 0.3% baking soda, soak f...

Embodiment 3

[0072] A kind of water-resistant cowhide garment leather processing technology provided by the present embodiment, said water-washable cowhide garment leather processing technology comprises the following steps:

[0073] (1) Cowhide pre-treatment: Check the cowhide to see if there are cracks in the leather board, whether the folds are rotten and hair loss, sew up the cracks, cut off the rotten parts, remove the sundries stuck to the cowhide, and then soak and cook after suturing ;

[0074] (2) Soaking: Soak the cowhide with water for 1 day in summer and 2-3 days in winter;

[0075] (3) Deashing;

[0076] (4) Pickling: Soak the delimed cowhide in a hydrochloric acid solution with a mass fraction of 10% for 2-4 hours, and the volume ratio of the cowhide to the hydrochloric acid solution is 1:2-4;

[0077] (5) Tanning: Add 3.5% aluminum tanning agent to the acid solution in step (4), soak for 30 minutes, then add 0.9% sodium formate, soak for 30 minutes, then add 0.5% baking so...

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Abstract

The invention belongs to the technical field of clothing fabric processing, and provides a water washing resistant bovine hide clothing leather processing process. The process comprises the steps of: bovine hide pretreatment; soaking; deliming; pickling; tanning; retanning; rinsing; dyeing and fat-liquoring; drying; wetting back; milling and finishing. Prepared bovine hide clothing leathers have the advantages of water washing resistance, no smell, no oil stains and high mechanical strength; the tanning process is environmentally friendly and pollution-free; the cost in the production process is low; and the process is simple.

Description

technical field [0001] The invention belongs to the technical field of garment fabric processing, and in particular relates to a process for processing washable cowhide garment leather. Background technique [0002] Cow leather is used as clothing material in people's daily life. The processing technology of cow leather is slightly different due to different materials, and it has made rapid progress due to the great development of society. The processing of cow leather has achieved long-term development. The innovation of cow leather processing has made cow leather The quality of leather has been improved, making cow leather products more and more popular among consumers. [0003] Tanning is an important step in the process of turning raw hide into leather. The quality of the tanning process directly affects the physical and chemical properties of the finished leather, and has an important relationship with the value of the finished leather. The main tanning agent currently...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C1/00C14C1/04C14C1/08C14C3/04C14C3/08C14C3/28C14C15/00
CPCC14C1/00C14C1/04C14C1/08C14C3/04C14C3/08C14C3/28C14C15/00
Inventor 张力
Owner HEFEI YUANKE GARMENT DESIGN CO LTD
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