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Production method of spinning primary liquid of plant protein and acrylonitrile graft copoly fiber

A technology of plant protein and spinning dope, applied in the direction of cellulose/protein conjugated artificial filament, etc., can solve the problems of fiber yellowing and elasticity

Inactive Publication Date: 2003-04-16
宋惠远 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For above-mentioned situation, the purpose of the present invention is to provide a kind of production method (in protein fiber production, its spinning stock solution is the key of fiber production) of new plant protein and acrylonitrile graft copolymerization fiber spinning stock solution, not only can effectively Solve the problem of fiber yellowing and poor elasticity, while reducing fiber cost

Method used

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Examples

Experimental program
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Embodiment Construction

[0004] Soak the raw material rich in vegetable protein (take low-temperature defatted soybean meal as an example) in the hydrochloric acid aqueous solution with pH4. 90-120 minutes. After the waste liquid is removed by centrifugation, the raw material is immersed in an aqueous solution of sodium hydroxide or potassium hydroxide with a pH of 8.5-9.5 and a temperature of 40-50°C at a ratio of 1:12 by weight of material and water, and successively add the following Additives: 2-3% sodium sulfite by weight of soybean meal, 0.2-0.5% by weight of soybean meal of EDTA or disodium EDTA, 0.1-0.3% by weight of soybean meal of ascorbic acid or sodium ascorbate, extraction for 50-90 minutes , Separation and removal of waste residue to obtain protein emulsion. Adjust the pH to 4.7-5.2 for protein precipitation, and separate waste liquid to obtain protein curd.

[0005] Add 8-10 times the 0.8M NaCl aqueous solution to the above protein curd, adjust the pH to 2 with hydrochloric acid, stir...

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Abstract

A process for preparing the spinning dope includes such steps as immersing vegetable protein curd in the aqueous solution of NaCl, regulating pH value to obtain the vegetable protein, further dissolving it in the aqueous solution of zinc chloride, regualting pH value with hydrochloric acid to raise temp. for modifying, further adding hydrogen peroxide, and after trimming the protein, graft copolymerizing with acrylonitrile under the protection of N2 gas. Its advantages are low cost and gay color and high elasticity of its product.

Description

1. Technical field [0001] The invention relates to a production method of a novel textile material spinning stock solution, in particular to a production method of a plant protein and acrylonitrile graft copolymerized fiber spinning stock solution. 2. Background technology [0002] Known artificially synthesized protein fibers include plant protein and polyvinyl alcohol blended fibers, bovine casein and polyvinyl alcohol blended and copolymerized fibers, and bovine casein and acrylonitrile grafted copolymerized fibers. The former two kinds of vegetable protein, bovine casein and polyvinyl alcohol blended copolymer fibers need high temperature treatment (above 220°C) due to polyvinyl alcohol during the spinning process, resulting in thermal coloring of the protein, making the resulting fiber yellow, and due to polyethylene The nature of alcohol determines that the produced fiber has poor elasticity; milk protein is expensive, raw materials are in short supply, and the cost is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00D01F8/02
Inventor 宋惠远胡宗善
Owner 宋惠远
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