Animal hair solvent and preparation method and use of keratin solution

A technology for animal hair and dissolving agent, applied in textiles, papermaking, fiber processing and other directions, can solve the problems of insufficient dissolution rate keratin molecular weight or environmental protection, difficult to achieve industrialization, difficult to apply industrialization, etc. Good performance and stability

Inactive Publication Date: 2011-02-23
TIANJIN POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The initial wool dissolution rate of this method is about 60%, the efficiency is low, and it is difficult to apply to industrialization
[0011] In a word, the existing technologies reported in these patent documents have deficiencies in dissolution rate, keratin molecular weight or environmental protection, and it is difficult to realize industrialization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method (abbreviation preparation method) of the keratin solution designed by the present invention utilizes the dissolving agent described in the present invention to comprise the following processes:

[0023] 1. Preparation of animal hair dissolving solution: the dissolving solution is composed as follows: the main component is tris(2-carboxyethyl)phosphine hydrochloride, tris(2-cyanoethyl)phosphine or tri-n-butylphosphine, compounding auxiliary Use more than one of thioglycolic acid, mercaptoethanol, sodium bisulfite, potassium bisulfite, sodium sulfite, potassium sulfite, sodium hypophosphite, ethanol, methanol and urea, and the additive amount is 10-80g / L. Become an aqueous solution with a concentration of 20-80% by weight.

[0024]The animal hair dissolving solution (abbreviated as dissolving solution) designed in the present invention is a reducing agent with strong selectivity to disulfide bonds, and has a good effect on dissolving animal hair. T...

Embodiment 1

[0035] Preparation of keratin solution from wool:

[0036] 1. Prepare wool lysate: this lysate consists of three (2-carboxyethyl) phosphine hydrochloride (98%) 50% (weight percent concentration, the same below), mercaptoacetic acid 8% (weight percent concentration, The same below), and the rest add deionized water to be configured into a wool solution;

[0037] 2. Preparation of keratin solution: immerse 10g of washed wool into the solution obtained in step 1, the weight ratio of wool to solution is 1:10, dissolve at a constant temperature of 80°C for 5 hours while stirring, and filter out the content Less than 10% insoluble matter, that is, get keratin solution;

[0038] 3. Post-treatment of keratin solution: add acetic acid to the obtained keratin solution, the amount added is based on adjusting the pH value of the protein solution to 7.0.

[0039] After testing, the dissolution rate of wool is 92%, among which, keratin molecular weight above 3500 accounts for 80%, and ker...

Embodiment 2

[0041] Preparation of keratin solution from wool:

[0042] 1. prepare wool dissolving solution: this dissolving solution consists of three (2-carboxyethyl) phosphine hydrochloride (98%) 40% (weight percentage concentration), sodium bisulfite 8% (weight percentage concentration), Urea 5% (weight percentage concentration), all the other add deionized water, are configured into wool solution;

[0043] 2. Preparation of keratin solution: immerse 10g of washed wool into the solution obtained in step 1, the weight ratio of wool to solution is 1:20, dissolve it under stirring at a constant temperature of 85°C for 6 hours, and filter out The content is less than 10% insoluble matter, and the keratin solution is obtained;

[0044] 3. Post-treatment of keratin solution: add hypophosphorous acid to the obtained keratin solution, and the amount of hypophosphorous acid to be added is based on adjusting the pH value of the protein solution to 6.8.

[0045] After testing, the wool dissolut...

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PUM

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Abstract

The invention discloses an animal hair solvent and the preparation method and use of keratin solution. The solvent is characterized in that tris(2-carboxyethyl)phosphine hydrochloride, tris(2-cyanoethyl)phosphine or trisphosphine is used as a main ingredient and is mixed with 1 to 8 percent of assistant which may be at least one of mercaptoacetic acid, mercaptoethanol, sodium hydrogensulfite, potassium bisulfate, sodium sulfite, potassium sulfite, sodium hypophosphite, ethanol, methanol and urea. The preparation method adopts the following processes: 1, preparing animal hair solution by using the animal hair solvent of the invention; 2, dissolving animal hair in the solution to prepare keratin solution; and 3, adding a proper amount of acid to perform the post-treatment of the keratin solution. The use is to use the keratin solution as textile finishing liquor or the main functional ingredient of the textile finishing liquor.

Description

technical field [0001] The invention relates to fiber treatment technology, in particular to an animal hair dissolving agent and the preparation method and application of the keratin solution obtained by using the dissolving agent. Background technique [0002] At present, the development of domestic wool raw materials is insufficient, and resources are wasted seriously. According to the statistics of relevant departments, my country produces an average of about 90,000 tons of thick and long hair every year, but due to its low quality and difficult processing, it is difficult to make full use of it. If these thick and long hair resources can be fully utilized, considerable economic benefits and obvious social benefits can be created. Most of the research on dissolving keratin from animal hair and reusing it focuses on the finishing of textiles with wool keratin solution, the fibrosis of wool keratin and the film formation of wool keratin. The focus of the research is to fin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15C08L89/04C08J3/03
Inventor 刘建勇万忠发姚金波高普王江波
Owner TIANJIN POLYTECHNIC UNIV
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