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Preparation process of chrome-free tanned pigskin top layer shoe lining leather

A preparation process and a top layer technology are applied in the field of chrome-free tanning pigskin top layer shoe lining technology field, which can solve the problems of poor quality of glove leather, insufficient softness, low efficiency, etc., and achieves low equipment requirements, simple steps, High-efficiency preparation

Active Publication Date: 2017-11-17
海宁家纺产业基地投资开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the production process of this invention has the problems of complicated tanning steps, low efficiency, poor quality of tanned glove leather, not plump enough, and not soft enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Embodiment: a kind of chrome-free tanned pigskin top layer shoe lining leather preparation process, comprises the following steps (starting from pickle leather embryo, the addition amount of each process additive is based on the quality of pickle leather): pickling softening, Tanning, degreasing softening, neutralization and dyeing and fatliquoring, the specific embodiment of the present invention is described in detail below:

[0019] Process Amount Materials Used Temperature Time Remarks

[0020] Soften by pickling 10% industrial salt 25℃ liquid ratio 200%

[0021] 1.0% sulfuric acid 90min pH2.3

[0022] Tanning 1.0% Sodium Formate

[0023] 0.2% Baking Soda 30min pH3.0

[0024] 0.5% Phosphate Triglycerides 30min

[0025] 2.0% aluminum tanning agent 60min

[0026] 2.0% glutaraldehyde tanning agent 30min

[0027] 2.0% glutaraldehyde tanning agent 30min

[0028] 2.0% glutaraldehyde tanning agent 90min

[0029] 1.0% sodium formate 30min pH3.3

[0030] 2.0% protei...

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PUM

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Abstract

The invention belongs to the field of preparation process of shoe lining leather and particularly relates to a preparation process of chrome tanning-free pigskin top-layer shoe lining leather, comprising the following steps (starting from a picked skin germ, the additive amounts of additives of all procedures take the mass of picked skin as a standard): pickling for softening, tanning, degreasing for softening, neutralizing and dyeing and fatliquoring. The invention provides the preparation process of the chrome tanning-free pigskin top-layer shoe lining leather, which has the advantages that steps are simple, preparation efficiency is high, the preparation process is low in requirement on equipment and energy-saving and environment-friendly, and the prepared shoe lining leather has the advantages of being wear-resistant, high-temperature-resistant, plump and soft.

Description

technical field [0001] The invention belongs to the field of shoe lining preparation technology, in particular to a preparation technology of chrome-free tanned pigskin top layer shoe lining leather. Background technique [0002] Leather industry is an important traditional light industry in my country, and it is also one of the industries with serious pollution discharge. Traditional leather mostly uses chrome as a tanning agent, and the processed chrome-tanned leather has the advantages of high temperature resistance, good thermal stability, plump leather body, and softness. With increasing emphasis on the living environment and the use of environmentally friendly leather, the development of chrome-free tanned leather has become an inevitable trend. [0003] The Chinese invention patent with the patent publication number of CN 101225450 A and the publication date of 2008.07.23 discloses a chrome-free tanning process for goatskin glove leather, which includes the following...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C1/08C14C3/04C14C3/08C14C3/28C14C3/30C14C5/00
CPCC14C1/08C14C3/04C14C3/08C14C3/28C14C3/30C14C5/00
Inventor 钱世峰石益英
Owner 海宁家纺产业基地投资开发有限公司