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Humanoid hair functional protein fiber and wet-spinning method thereof

A protein fiber, wet spinning technology, applied in the direction of cellulose/protein conjugated rayon, wet spinning, conjugated synthetic polymer rayon, etc. Large-scale production and other problems, to achieve the effect of excellent physical index performance, strong antistatic performance, and excellent drape performance

Pending Publication Date: 2019-11-15
HENAN REBECCA HAIR PRODS TNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned manufacturing method has the disadvantages of harsh conditions and complicated process, and is not suitable for mass production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] 1. Preparation of Polymerization Solution

[0026] Acrylonitrile, vinylidene chloride, methyl methacrylate and sodium acrylamide methacrylic sulfonate according to the mass fraction of 75:19:5:1, using a solution polymerization process, the polymerization temperature is 40 ~ 70 ℃, to obtain acrylonitrile copolymer The molecular weight of the polymer is 40000~80000, and dimethylformamide (DMF) is used as the solvent. The mass percentage of acrylonitrile copolymer in the copolymer solution is 25 wt%.

[0027] 2. Protein Solubilization and Extraction

[0028] Dissolve 12 kg of human hair or animal hair in a 30% sodium hydroxide solution, heat at 100 °C for 0.5 hour, stir, and fully dissolve. Dilute hydrochloric acid is added to the above basic protein solution to lower the pH value of the solution to 5, and the protein precipitates out. Then the moisture in the precipitated protein powder is removed to ensure that the water content range is 20%. Use a grinder to grind ...

example 2

[0041] 1. Preparation of Polymerization Solution

[0042] The mass fraction of acrylonitrile, vinyl chloride, sodium methacrylic sulfonate and methyl acrylate is 75:18:1:6, using a solution polymerization process at a polymerization temperature of 45-65°C to obtain an acrylonitrile copolymer. The molecular weight of the polymer 50000~60000, using dimethylacetamide (DMAC) as solvent. The mass percentage of acrylonitrile copolymer in the solution was 35 wt%.

[0043] 2. Protein Solubilization and Extraction

[0044] Dissolve 24 kg of human hair or animal hair in a 30% sodium hydroxide solution, heat at 80°C for 1 hour, stir, and fully dissolve. Dilute hydrochloric acid is added to the above basic protein solution to lower the pH value of the solution to 6, and the protein precipitates out. Then the moisture in the precipitated protein powder is removed to ensure that the water content range is 15%. Grind for 1.5 min with a grinder to obtain protein powder with a particle siz...

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Abstract

The invention relates to acrylic fibers and a production method, in particular to humanoid hair functional protein fiber and a wet-spinning method thereof. A spinning solution for wet spinning is prepared from protein powder which is obtained by processing animal hair and / or human hair and an acrylonitrile copolymer, wherein the acrylonitrile copolymer is prepared through copolymerization of, by weight, 35-55 wt% of acrylonitrile, 35-45 wt% of vinylidene chloride, 6-8 wt% of allyl monomers containing sulfonic acid groups and 3.5-6.0 wt% of olefine acid ester. Since protein hair produced by means of the method has handfeel and properties extremely similar to those of human hair, and the humanoid hair functional protein fiber is very suitable for manufacturing top-grade wig products.

Description

technical field [0001] The invention relates to an acrylic fiber and a production method thereof, in particular to a human hair imitation functional protein fiber and a wet spinning method thereof. Background technique [0002] With the continuous development of the world's economic level, wigs are becoming more and more attractive to young people, and they are a pursuit of fashion trends and beauty. At present, the annual consumption of artificial hair in the world is more than 100,000 tons, and it is increasing year by year. The demand for hair products is not only increasing in developed countries and African markets, but also in domestic demand. [0003] At present, the main chemical fibers used in hair products on the market are polyvinyl chloride-based (PVC) fibers, polyester-based (PET) fibers, polyacrylonitrile-based (PAN) and protein fibers. Polyvinyl chloride-based artificial hair is close to natural hair in terms of strength and elongation, and has good flame re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/08D01F8/02D01D5/06D01D13/00
CPCD01D5/06D01D13/00D01F8/02D01F8/08
Inventor 李全民杨明远张科扬鞠芳英汪东烨杨海涛
Owner HENAN REBECCA HAIR PRODS TNC
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