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Self-thickening environment-friendly leather penetrant and preparation method thereof

An environmentally friendly, self-thickening technology, applied in small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, dyeing method, etc. Limit the scope of use and other issues to achieve the effect of improving penetration performance, good appearance, uniform and full color

Inactive Publication Date: 2018-11-09
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some leather penetrants add surfactants such as alkylphenol polyoxyethylene ethers that are irritating and difficult to biodegrade, which limits the scope of use of the product to a certain extent

Method used

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  • Self-thickening environment-friendly leather penetrant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of self-thickening environmentally friendly leather penetrant adopts the following steps:

[0031] 1) Combine 3 parts of sodium lauroyl sarcosinate, 5 parts of disodium laureth polyoxyethylene ether sulfosuccinate, 4 parts of fatty amide polyoxyethylene ether, 3 parts of cocamidopropyl hydroxysultaine, 5 parts Put one part of sodium cocoamphoacetate and 25 parts of water into the reaction kettle, stir at room temperature and low speed (200rpm) for 20min to obtain the first liquid;

[0032] 2) Dissolve 0.1 part of citric acid in 25 parts of water to obtain a citric acid solution;

[0033] 3) Under normal temperature and low-speed stirring (200 rpm) conditions, slowly add the citric acid solution to the first liquid of step 1) within 30 minutes, and continue stirring for 30 minutes to obtain the self-thickening environmentally friendly leather penetrant.

Embodiment 2

[0035] A preparation method of self-thickening environmentally friendly leather penetrant adopts the following steps:

[0036] 1) Combine 5 parts of sodium lauroyl sarcosinate, 8 parts of disodium laureth sulfosuccinate, 7 parts of fatty amide polyoxyethylene ether, 5 parts of cocamidopropyl hydroxysultaine, 7 parts Put one part cocoamphoacetate sodium and 28 parts water into the reaction kettle, stir at room temperature and low speed (200rpm) for 20min to obtain the first liquid;

[0037] 2) Dissolve 0.6 parts of citric acid in 27 parts of water to obtain a citric acid solution;

[0038] 3) Under normal temperature and low-speed stirring (200 rpm) conditions, slowly add the citric acid solution to the first liquid of step 1) within 30 minutes, and continue stirring for 30 minutes to obtain the self-thickening environmentally friendly leather penetrant.

Embodiment 3

[0040] A preparation method of self-thickening environmentally friendly leather penetrant adopts the following steps:

[0041] 1) Combine 8 parts of sodium lauroyl sarcosinate, 10 parts of disodium laureth sulfosuccinate, 8 parts of fatty amide polyoxyethylene ether, 8 parts of cocamidopropyl hydroxysultaine, 10 parts Put one part of sodium cocoamphoacetate and 30 parts of water into the reaction kettle, stir at room temperature and low speed (200rpm) for 20min to obtain the first liquid;

[0042] 2) Dissolve 1 part of citric acid in 30 parts of water to obtain a citric acid solution;

[0043] 3) Under normal temperature and low-speed stirring (200 rpm) conditions, slowly add the citric acid solution to the first liquid of step 1) within 30 minutes, and continue stirring for 30 minutes to obtain the self-thickening environmentally friendly leather penetrant.

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PUM

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Abstract

The invention discloses a self-thickening environment-friendly leather penetrant, which uses the following raw materials by weight: 3-8 parts of sodium lauryl sarcosine, 5-10 parts of disodium laurylalcohol polyoxyethylene ether sulfosuccinate, 4-8 parts of fatty acid amide polyoxyethylene ether, 3-8 parts of cocamidopropyl hydroxysultonbetaine, 5-10 parts of sodium cocoamphoacetate, 0.1-1 part of citric acid and 50-60 parts of water. Compared with ordinary penetrating agents, the leather penetrant provided by the invention has stronger penetrating ability, and can achieve the purposes of rapid water immersion and rapid de-ashing when used in the process of leather water immersion and ash removal, and when used in the process of dyeing, can greatly improve the penetrating performance of dyes, and achieve full coloring.

Description

Technical field [0001] The invention relates to the field of tanning additives. More specifically, the present invention relates to a self-thickening environment-friendly leather penetrant and a preparation method thereof. Background technique [0002] Leather penetrant is an indispensable auxiliary in the tanning process. During the leather soaking process, it helps to open the leather fiber, shorten the soaking time and protect the grain layer. In the deliming process, it helps the chemical material to enter the leather fiber to achieve the purpose of rapid deliming to protect the grain surface. In the dyeing process, it helps to increase the permeability of the dye, so that the dye is evenly colored and the color is full. Therefore, the comprehensive performance of penetrant has a great influence on the quality of finished leather. At present, most leather penetrants add a small amount of polymer thickener in the preparation process in order to extend the storage time of t...

Claims

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Application Information

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IPC IPC(8): D06P1/647D06P1/613D06P1/607D06P1/66D06P3/32D06P1/653C14C1/04C14C1/08B02C17/10B02C17/18B02C23/16
CPCB02C17/10B02C17/18B02C23/16B02C2023/165C14C1/04C14C1/08D06P1/6073D06P1/6133D06P1/647D06P1/6533D06P1/66D06P3/32
Inventor 沈忠权刘小明钟伟
Owner JIAXING UNIV
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