High-range cattle hide sleeping mat leather manufactured through cooperation of zirconium-aluminum-titanium and tanning agent

A high-grade technology with tanning agent is applied in the field of tanning high-grade cattle mat leather with zirconium-aluminum-titanium co-tanning agent, which can solve the problems of high production cost, poor color brightness and human health threat of pure vegetable tanned cattle mat leather. , to achieve the effect of maintaining the integrity of the grain surface, eliminating the harm to human health and the environment, and increasing the economic benefits of the enterprise

Active Publication Date: 2016-01-06
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high production cost of pure vegetable tanned yellow ox mat leather, the poor feel of the finished leather, and the poor color brightness, most of the yellow ox mat leathers currently on the market are chrome-vegetable combined tanned yellow ox mat leather.
The use of chrome tanning agents to produce cattle mat leather will have the risk of generating hexavalent chromium in the subsequent use process. The toxicity of hexavalent chromium has long been recognized by the World Healt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] (1) Take the gray bare skin after splitting and weigh it as the basis for calculating materials in the deliming, softening, pickling, and tanning sections;

[0017] (2) The gray bare skin after splitting shall be deashed, softened and pickled according to the conventional process, and the end pH of pickling shall be 2.5-2.7;

[0018] (3) Tanning: Add 15% zirconium-aluminum-titanium complex tanning agent (manufactured by Mianzhu Jinkun Chemical Co., Ltd.) under the condition of bath temperature in the drum at 25℃. The content is 8%±2%), rotate for 3 hours; then use the baking soda solution dissolved in 1:20 water to extract the alkali, so that the end pH is 4.0-4.2; add 100% of the gray bare skin weight at 50-60℃ With water, make the liquid ratio reach 1.5, raise the temperature of the bath liquid to 40℃, and continue to act for 3 hours; add 25% of the weight of the ash naked skin vegetable tanning agent (Mimosa Company, tannin extract tanning agent) in the sam

Example Embodiment

[0020] Example 2

[0021] (1) Take the gray bare skin after splitting and weigh it as the basis for calculating materials in the deliming, softening, pickling, and tanning sections;

[0022] (2) The gray bare skin after splitting shall be deashed, softened and pickled according to the conventional process, and the end pH of pickling shall be 2.5-2.7;

[0023] (3) Tanning: Add 20% zirconium-aluminum-titanium complex tanning agent (manufactured by Mianzhu Jinkun Chemical Co., Ltd.) under the condition of bath temperature of 25℃ in the drum. The content is 8%±2%), rotate for 3-4 hours; then use a 1:20 water-dissolved baking soda solution to extract the alkali, so that the end pH is 4.0-4.2; add 100% of the gray bare skin weight at 50-60℃ Make the liquid ratio reach 1.5, increase the temperature of the bath liquid to 40℃, continue to act for 3 hours; add 10% vegetable tanning agent (Mimosa company, bayberry tannin extract tanning agent) in the same bath, and turn After 4 hours, stop the

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PUM

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Abstract

The invention discloses a manufacturing method for high-range cattle hide sleeping mat leather manufactured through cooperation of zirconium-aluminum-titanium and a tanning agent. Chromium and formaldehyde are not used during the production process, and damage of the chromium and the formaldehyde to human bodies is avoided. Compared with traditional sleeping mat leather production, the cattle hide sleeping mat leather manufactured through cooperation of the zirconium-aluminum-titanium and the tanning agent has the following advantages that (1) an obtained leather blank is light in color, and light-color leather production is facilitated; (2) the yield of leather is high, and economic benefits of an enterprise are increased; (3) the grain side is flat and fine, can be slightly coated, and is suitable for manufacturing high-range sleeping mat leather; (4) compared with sleeping mat leather produced with vegetable tanning agents, the high-range cattle hide sleeping mat leather is good in filling performance and soft in hand feeling; (5) the high-range cattle hide sleeping mat leather does not contain chromium and formaldehyde and can not damage human health.

Description

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Claims

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Application Information

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Owner SICHUAN UNIV
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