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Preparation method of collagen fiber for artificial hair

A collagen fiber, artificial hair technology, applied in the chemical characteristics of fibers, spinning solution preparation, chemical post-treatment of rayon, etc., can solve the problems of unsatisfactory softening point in water, poor ability of fiber to maintain shape, etc., and achieve viscosity Moderate, good affinity, the effect of reducing environmental pollution

Inactive Publication Date: 2009-12-09
HENAN REBECCA HAIR PRODS TNC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present inventors found that the water softening point (i.e. RP value) of the fiber obtained by this method is not very ideal, and the fiber is soaked in water above 70°C, and the shape retention ability of the fiber is not good, and the length shrinkage of more than 10% is prone to occur.

Method used

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  • Preparation method of collagen fiber for artificial hair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of spinning stock solution: take 7.5g collagen and 24g deionized water to mix homogeneous solution A, take 67.5g polyvinyl alcohol with a polymerization degree of 1700 and alcoholysis degree of 99% and 165.6g deionized water to mix homogeneous solution B, take 0.4 g epichlorohydrin reagent C, take 1.1g hydrochloric acid and 13.9g deionized water to mix solution D, take 3g dye and dissolve it in 17g deionized water to form solution F. In solution B, under stirring conditions, add solution A, solution D, solution C, and solution F in sequence. Keep the stock solution temperature at 75°C.

[0031] Spinning dope spinning: The spinning dope obtained above is filtered and defoamed, and then sprayed through a spinneret hole with a diameter of 0.6 mm, using saturated sodium sulfate-aluminum sulfate aqueous solution at 25°C and pH 5. A saturated sodium sulfate-sodium hydroxide aqueous solution at 25°C and a pH of 9 was used for the neutralization bath, and a saturat...

Embodiment 2

[0038] Preparation of spinning stock solution: take 14.4g collagen and 28g deionized water to mix homogeneous solution A, take 57.6g polyvinyl alcohol with a degree of polymerization of 2000 alcoholysis degree 99% and 166.4g deionized water to mix homogeneous solution B, take 0.6g For epichlorohydrin reagent C, 1.5 g of acetic acid and 14.5 g of deionized water were mixed to form solution D, and 2.5 g of dye was dissolved in 14.5 g of deionized water to form solution F. In solution B, under stirring conditions, add solution A, solution D, solution C, and solution F in sequence. Keep the stock solution temperature at 75°C.

[0039] Spinning of spinning stock solution: filter and defoam the spinning stock solution obtained above and spray it through a spinneret hole with a diameter of 0.4mm, using a saturated sodium sulfate-aluminum sulfate aqueous solution with a pH of 3 at 50°C. A saturated sodium sulfate-sodium hydroxide aqueous solution at 50°C and a pH of 11 was used for t...

Embodiment 3

[0046] Preparation of spinning stock solution: take 19.8g collagen and 31g deionized water to mix homogeneous solution A, take 46.2g polyvinyl alcohol with a degree of polymerization of 2000 alcoholysis degree 99% and 182.2g deionized water to mix homogeneous solution B, take 0.8g For epichlorohydrin reagent C, take 0.2g of sodium hydroxide and 5.8g of deionized water to mix solution E, take 2g of dye and dissolve it in 12g of deionized water to form solution F. In solution B, under stirring conditions, add solution A, solution D, solution C, and solution F in sequence. Keep the stock solution temperature at 75°C.

[0047] Spinning of spinning stock solution: filter and defoam the spinning stock solution obtained above and spray it through a spinneret hole with a diameter of 0.1 mm, using a saturated sodium sulfate-aluminum sulfate aqueous solution with a pH of 6 at 40°C. A saturated sodium sulfate-sodium hydroxide aqueous solution at 40°C and a pH of 8 was used for the neutr...

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Abstract

The invention discloses a preparation method of collagen fiber for artificial hair and is characterized in that collagen fiber (or gelatin) is mixed with polyvinyl alcohol, and a certain amount of monofunctional epoxy compound used as crosslinker is added to obtain spinning stock solution with a certain concentration and viscosity; nascent fiber can be obtained from the stock solution by wet spinning; the fiber is cross-linkingly treated by aldehydes and the aqueous solution of metals ion to obtain wig protein fiber. The fiber number of the wig protein fiber is 30-120dtex, and the breaking strength is 1.5-3.0cN / dtex.

Description

technical field [0001] The invention relates to a method for preparing artificial hair, in particular to a method for preparing collagen fibers. Background technique [0002] Collagen is a natural polymer compound, which mainly exists in animal skin, bone, cartilage, teeth, tendons, ligaments and blood vessels. It is an important structural protein of connective tissue and plays a role in supporting organs and protecting the body. Collagen can be extracted from animal hides and tanning waste by acid-alkali or enzymatic treatment. The extracted collagen is dissolved in a certain solvent to adjust the concentration and viscosity of the solution, and then wet or dry-wet. Collagen fibers can be obtained by spinning. [0003] The spinning dope prepared from pure collagen has poor spinnability, fiber mechanical properties and water resistance, which limit its application. Blending collagen with certain fiber-forming polymers, such as polyvinyl alcohol, polyacrylonitrile, etc. T...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/10D01F1/06D01F11/00D01D1/02D01D5/06A41G5/00
Inventor 郑有全叶光斗
Owner HENAN REBECCA HAIR PRODS TNC
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