Cortex-core protein and polyacrylonitrile compound fiber and method for wigs

A polyacrylonitrile and composite technology, which is applied in the direction of conjugated synthetic polymer rayon, wigs, fiber processing, etc., can solve the problems of little progress in research work, reduced surface protein content, and poor spinnability of spinning dope , to achieve the effect of good moisture absorption and ventilation, and improved moisture absorption and ventilation

Active Publication Date: 2013-01-09
SHANGHAI REBECCA FIBER MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, polyacrylonitrile is grafted with silk protein to improve the performance of polyacrylonitrile fiber, but the main problem of this method is that the grafting rate of acrylonitrile is relatively low, and the spinnability of spinning dope is poor, so research little progress
Invention patent CN1412356 discloses a preparation process of silkworm chrysalis protein-acrylonitrile graft copolymerization fiber spinning stock solution. This method uses silkworm chrysalis protein as the copolymerization skeleton molecule, which will make the mechanical properties of the fiber unable to meet the requirements; invention patent CN1370859A discloses a protein Polyacrylonitrile composite fiber and its manufacturing method, the method not only involves the complex process of extracting protein from soybean meal, the protein raw material, but also distributes the protein in the whole fiber, which reduces the protein content on the surface and affects the fiber feel and skin-friendly properties. Play; the invention patent CN1690259A discloses a protein functional fiber, the method uses the addition of protein and metal elements and polyacrylonitrile blended spinning, which can provide the fiber anti-ultraviolet performance, but the addition of metal elements will cause more or less damage to human health. or less adverse effects
In addition, most of the currently commercially available protein-modified wig fibers do not have flame retardancy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Sand mill 10% cystine calculated by weight of the cortex for 3 hours to make the particle size below 5 μm, dry in an oven at 60°C, and blend with the dispersant polyethylene wax equivalent to 0.05% by weight of the system with the rest weight percent dimethylformamide (DMF), and stir well. Then add it to 35% polyacrylonitrile spinning solution, and stir at high speed while adding. Then add 0.1% composite coloring agent, stirring speed 3000r / min, stirring temperature 40°C, 0.5h, 40°C defoaming for use.

[0038] The mass ratio of the four monomers to the flame retardant is: 35% acrylonitrile, 45% vinylidene chloride, 13% acrylate, 6.5% sodium ethanol sulfonate and 0.3% flame retardant red phosphorus. Butyronitrile 0.2% is used as an initiator, which is sent to a polymerization tank for polymerization through a quantitative pump, and a solution polymerization process is adopted at a polymerization temperature of 45°C to obtain a tetrapolymer of acrylonitrile-vinylidene ch...

Embodiment 2

[0041] Sand mill 25% glutamic acid calculated by weight for 4 hours to make the particle size below 5 μm, dry in an oven at 65°C, and blend with polyethylene glycol, a dispersant equivalent to 0.5% by weight of the system, in two Methylacetamide (DMAC), stir well. Then add it to 40% polyacrylonitrile spinning solution, and stir at high speed while adding. Then add 0.5% composite coloring agent, stirring speed 3500r / min, stirring temperature 45°C, 1h, 45°C defoaming for later use.

[0042]The mass ratio of the four monomers is: 40% acrylonitrile, 35% vinylidene chloride, 16% methyl acrylate, 7% sodium acrylamide methacrylate sulfonate and 1.5% flame retardant phosphate. 0.5% nitrogen bis-isobutyronitrile is used as an initiator, which is sent to a polymerization tank for polymerization through a quantitative pump, and a solution polymerization process is adopted at a polymerization temperature of 55°C to obtain acrylonitrile-vinylidene chloride-methyl acrylate-acrylamide methy...

Embodiment 3

[0045] Sand mill 30% serine by weight for 4.5 hours to make the particle size less than 5 μm, dry in an oven at 60°C, and blend with dispersant polyethylene wax equivalent to 0.5% by weight of the system in dimethyl Sulfoxide (DMSO), stir well. Then add it to 50% polyacrylonitrile spinning solution, and stir at high speed while adding. Then add 0.8% composite coloring agent, stirring speed 4000r / min, stirring temperature 50°C, 1.5h, 50°C defoaming for later use.

[0046] The mass ratio of the four monomers is: 45% acrylonitrile, 35% vinylidene chloride, 10% methyl methacrylate, 6.5% sodium ethanol sulfonate and 2.7% flame retardant halogenated phosphate, using azobis Isobutyronitrile 0.8% is used as an initiator, and is sent to a polymerization tank for polymerization through a quantitative pump. The solution polymerization process is adopted, and the polymerization temperature is 60°C to obtain the tetrachloride of acrylonitrile-vinylidene chloride-methyl methacrylate-sodium...

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Abstract

The invention relates to a combination and a spinning method for making wigs. The combination comprises protein, acrylonitrile, polyester and olefin, and includes a cortex layer and a core layer, wherein the cortex is mixed by, by weight, 10-40% of protein, 0.05-1% of a wax dispersing agent and the balance amide or sulfone solvents; and the core layer is a polymer with a molecular weight of 45,000-70,000 copolymerized by, by weight, 35-45% of acrylonitrile, 35-45% of vinylidene chloride, 10-20% of acrylic ester, 6-10% of sulfonate, 0.3-4% of a flame retardant and 0.2-1% of azodiisobutyronitrile; and the cortex-core layer spinning solution is produced into protein composite fibers with a flame retardant performance through a bi-component composite spinning machine and a wet spinning process, and a limited oxygen index can reach 28-30. The composite fibers for the wigs can be used as fashionable hair products and advanced artificial furs; are good in skin affinity, moisture absorption, breathable performance and dyeing property; touch like real hair; and are simulation and super-real fiber with a flame retardant property.

Description

[technical field] [0001] The present invention relates to compositions for making wigs comprising protein, acrylonitrile, polyester and olefin components. [0002] The present invention also relates to a spinning method of the wig composition. [Background technique] [0003] With the continuous development of society, wigs have gradually become people's pursuit of fashion trends and beauty. Although the modified polyacrylonitrile fiber used as a wig raw material has good elasticity, smoothness and bright color, it is not flame-retardant, skin-friendly, air-permeable and hygroscopic, and has a large gap with natural human hair. gap. [0004] The use of natural protein to produce regenerated protein fibers is currently a hot spot in research and development. By grafting or adding methods, chemical fibers can be made to have excellent characteristics such as soft hand feeling, good moisture absorption and air permeability. For example, polyacrylonitrile is grafted with silk ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/08D01F1/10D01D5/34D01D5/06A41G3/00
Inventor 李全民杨明远刘术佳刘超文鞠芳英杨翠平
Owner SHANGHAI REBECCA FIBER MATERIAL TECH
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