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Chrome-free metal compound tanning agent and preparation method thereof

A compound tanning agent and chromium metal technology, which is applied in the fields of small hide/big hide/leather/fur treatment, tanning treatment, small hide/big hide/leather skin/fur chemical treatment, etc., which can solve the limitation of development and promotion, There are special requirements for fatliquoring conditions, etc., to achieve the effect of less environmental pollution, simple production process and good comprehensive performance

Inactive Publication Date: 2014-03-26
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this tanning agent has many defects. It needs to change some process procedures during application, and has special requirements for fatliquoring conditions, which limits its development and promotion.

Method used

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  • Chrome-free metal compound tanning agent and preparation method thereof
  • Chrome-free metal compound tanning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] According to the configuration of 15.0% titanyl sulfate, 65.0% zirconium sulfate, 5.0% sodium aluminum silicate: 15.0% aluminum sulfate, add 1300g zirconium sulfate, 300g titanyl sulfate, 100g silicon Sodium aluminum acid and 300g of aluminum sulfate that have been pulverized to 100 meshes, and 15% liquid caustic soda is arranged on the mixing reactor to absorb the acid mist produced during the mixing process, and the mixed reaction is 40 minutes to prepare a non-chromium metal complex tanning agent.

Embodiment 2

[0050] According to the configuration of 13.0% titanyl sulfate, 68.0% zirconium sulfate, 7.0% sodium aluminum silicate: 12.0% aluminum sulfate, add 1360g zirconium sulfate, 260g titanyl sulfate, 140g silicon Sodium aluminum acid and 240g have been ground to 140 mesh aluminum sulfate, and 20% liquid caustic soda is arranged on the mixing reactor to absorb the acid mist produced during the mixing process, and the mixed reaction is 35min to prepare the non-chromium metal composite tanning agent.

Embodiment 3

[0052]According to the configuration of 12.0% titanyl sulfate, 73.0% zirconium sulfate, 5.0% sodium aluminum silicate: 10.0% aluminum sulfate, add 1460g zirconium sulfate, 240g titanyl sulfate, 100g silicon Sodium aluminum acid and 200g of aluminum sulfate that have been pulverized to 200 meshes, and 30% liquid caustic soda is arranged on the mixing reactor to absorb the acid mist produced during the mixing process, and the mixed reaction is 50 minutes to prepare the non-chromium metal composite tanning agent.

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PUM

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Abstract

The invention discloses a chrome-free metal compound tanning agent which comprises the following components in percentage by weight: 60.0%-75.0% of zirconium sulfate, 10.0%-15.0% of aluminum sulfate, 10.0%-15.0% of titanyl sulfate and 5.0%-10.0% of sodium aluminum silicate. The invention further discloses a preparation method of the chrome-free metal compound tanning agent. The chrome-free metal compound tanning agent provided by the invention is good in comprehensive performance, simple in production process and environment-friendly; the preparation method of the environment-friendly chrome-free metal compound tanning agent is simple; in addition, the chrome-free metal compound tanning agent is good in compatibility with existing leather-making materials and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of leather tanning, in particular to a chromium-free metal compound tanning agent. Background technique [0002] Tanning is an important procedure in the process of tanning. Due to its advantages of easy control, simple operation, and high moisture and heat resistance stability of the finished leather, it has been widely used and dominated in the tanning industry. Then, the chromium utilization rate of the conventional chrome tanning method is low, and chrome tanning has also been one of the main sources of pollution in tanning since its invention. Therefore, at present, the primary problem faced by tanning is the pollution of tanning. [0003] After the 1970s, the research on the substitutes of various chrome tanning agents has been a key task of governments and scientific research institutes of various countries. The development of chrome-free tanning materials at home and abroad mainly includes the follo...

Claims

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Application Information

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IPC IPC(8): C14C3/04
Inventor 兰云军罗卫平许晓红沈晓军刘建国金强伟
Owner WENZHOU UNIVERSITY
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