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Process for producing fire retardant man-made protein hair

A technology of artificial protein and hair, applied in the manufacture of fire-resistant and flame-retardant filaments, conjugated synthetic polymer artificial filaments, cellulose/protein conjugated artificial filaments, etc., can solve the problem of changing polymerization and spinning processes and procedures Complicated and other issues, to achieve the effect of low price, easy to obtain flame retardant efficiency, and good flame retardant performance

Inactive Publication Date: 2008-01-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copolymerization method is mainly to copolymerize acrylonitrile monomers and halogen-containing or phosphorus-containing vinyl monomers to obtain spinning dope, and then spin to obtain flame-retardant fibers. This method needs to change the polymerization and spinning processes, and the process is more complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A certain amount of dimethylformamide (DMF) or dimethylacetamide (DMAC) is used to prepare a certain amount of acrylonitrile copolymer spinning dope as a solvent by a generally known method. The composition of the acrylonitrile copolymer is: 50% of acrylonitrile, 45% of vinyl chloride and 5% of other components. The content of acrylonitrile copolymer in the spinning dope is 25% (wt%), and the content of dimethylformamide (DMF) is 70% (wt%). The superfine human hair powder whose weight is 5% of the weight of the acrylonitrile copolymer in the spinning stock solution is stirred and mixed with the above spinning stock solution for 2-3 hours below 65°C, and the coarser particles are removed by pressure filtration, and then degassed to obtain Mix the spinning stock solution; use 65% dimethylformamide (DMF) aqueous solution as the coagulation bath, and obtain the protein acrylic fiber wig after spinning, coagulating, washing, drafting and heat setting the above-mentioned mixe...

Embodiment 2

[0025] Other is the same as embodiment 1, and difference is that the amount of superfine human hair powder improves to be 10%. The blended spinning dope has good spinnability, and the obtained monofilament fiber has a fineness of 50 dtex, a breaking strength of 1.6 cN / dtex, and a breaking elongation of 11%.

Embodiment 3

[0027] Others are the same as Example 1, except that the solvent in the stock solution and the coagulation solution is dimethylacetamide (DMAC), and the amount of the superfine human hair powder is increased to 10%. The blended spinning dope has good spinnability, the obtained monofilament fiber has a fineness of 55 dtex, a breaking strength of 1.7 cN / dtex, and a breaking elongation of 13%.

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Abstract

The invention discloses a preparing method of flame-proof artificial protein hair, which comprises the following steps: (1)dissolving superfine hair powder and acrylonitrile copolymer in solvent at 55-75 deg. c; stirring and mixing for 2-5 h; filter-pressing; debubbling; getting mixed spinning raw liquid; (2)choosing water solution of 45-75% dimethyl formamide (DMF)or dimethyl acetamide (DMAC)as setting bath; spinning; freezing; washing; drawing; hot-shaping; getting the product. This method possesses simple operation, wide source of raw material and low cost, which product possesses good flame-proof property.

Description

technical field [0001] The invention belongs to a method for preparing artificial protein hair, in particular to a method for preparing flame-retardant artificial protein hair. Background technique [0002] Artificial hair is an important fashion accessory in modern life, with an annual global consumption of more than 100,000 tons. The production and application of artificial hair abroad began in the 1970s, while in my country it began in the 1990s. So far, the application penetration rate is still very low, and most of the products produced are used for export. [0003] Most of the early artificial hair is produced by polyethylene terephthalate (PET), which has high melting point, high elastic modulus, good transparency, chemical resistance and other excellent properties, and the price is relatively low. . But PET fiber is flammable, in order to obtain flame-retardant PET artificial hair, people have carried out research on this, for example CN11435517A discloses that a k...

Claims

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Application Information

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IPC IPC(8): D01F8/08D01F8/02D01F1/07A41G3/00
Inventor 彭治汉朱新军
Owner DONGHUA UNIV
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