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Compound protein fiber and preparation method thereof

A composite protein and fiber technology, applied in the field of composite protein fiber and its manufacturing, can solve the problems of failure to meet the performance requirements, poor stability of spinning dope, difficulty in pretreatment, etc., achieve excellent mechanical properties and hygroscopic properties, and low price , the effect of reducing production costs

Active Publication Date: 2011-09-07
SHANGHAI QUANYU BIO TECH SUIPING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the animal protein curd milk is separated from animal or aquatic organism bone meal. There are certain difficulties in the source collection of raw materials and pretreatment before separation. The stability of the silk stock solution is poor, and the fiber that meets the performance requirements cannot be obtained
At present, there is no public report about the simultaneous modification of collagen and soybean protein mixed with polyvinyl alcohol to manufacture composite protein fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 15kg of collagen and soybean protein and mix them, add enough water, stir and mix well, add NaOH solution, adjust the pH value to 8, heat to 65°C, stir until the protein is completely dissolved; then add 120kg of polyvinyl alcohol, and Raise the temperature to 95°C and stir until completely dissolved; add 300g of initiator potassium persulfate, and adjust the pH value to 5 with hydrochloric acid. After 2 hours of heat preservation polymerization, heat to 90°C, filter, and stand for 6 hours to defoam. Spinning dope with a concentration of 16%; the polyvinyl alcohol fiber wet spinning process is used for spinning, the temperature of the coagulation bath is 40 ° C, the pH value is 8, and the semi-finished fiber obtained after drafting, drying, and heat setting; Adjust the pH value to 4.5 with hydrochloric acid, acetalize the temperature at 65°C, and use formaldehyde to acetalize the semi-finished fiber for 100 minutes; after acetalization, perform steps such as washin...

Embodiment 2

[0024] Weigh 25kg of collagen and soybean protein and mix them, add enough water, stir and mix well, add NaOH solution, adjust the pH value to 9, heat to 55°C, stir until the protein is completely dissolved; then add 100kg of polyvinyl alcohol, and Raise the temperature to 90°C and stir until completely dissolved; add 300g of initiator potassium persulfate, and adjust the pH value to 5.5 with hydrochloric acid, heat preservation polymerization reaction for 2 hours, heat to 95°C, filter, stand for 7 hours for defoaming, and prepare Spinning dope with a concentration of 18%; the polyvinyl alcohol fiber wet spinning process is used for spinning, the temperature of the coagulation bath is 50 ° C, the pH value is 7, and the semi-finished fiber obtained after drafting, drying, and heat setting; Hydrochloric acid adjusts the pH value to 5, the acetalization temperature is 75°C, and the semi-finished fibers are acetalized with formaldehyde for 60 minutes; after acetalization, washing, ...

Embodiment 3

[0026]Weigh 35kg of collagen and soybean protein, add enough water, mix well, add NaOH solution, adjust the pH value to 9.5, heat to 45°C, stir until the protein is completely dissolved; then add 80kg of polyvinyl alcohol, and Raise the temperature to 85°C and stir until completely dissolved; add 300g of initiator potassium persulfate, adjust the pH value to 6.5 with hydrochloric acid, keep warm for 2 hours after polymerization, heat to 100°C, filter and stand for 8 hours for defoaming to produce Spinning dope with a concentration of 20%; the polyvinyl alcohol fiber wet spinning process is used for spinning, the temperature of the coagulation bath is 60 ° C, the pH value is 8, and the semi-finished fiber obtained after drafting, drying, and heat setting; Adjust the pH value to 5.5 with hydrochloric acid, and the acetalization temperature is 85°C. The semi-finished fibers are acetalized with formaldehyde for 40 minutes; after acetalization, washing, drying, oiling, cutting and o...

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Abstract

The invention relates to a compound protein fiber and a preparation method thereof. The compound protein fiber comprises the following components in percentage by mass: 10 to 45 percent of collagen, 10 to 45 percent of soybean protein and 10 to 80 percent of polyvinyl alcohol. The preparation method of the compound protein fiber comprises the following steps of: dissolving the collagen and the soybean protein in water, adding the polyvinyl alcohol, dissolving, and performing copolymerization modification to obtain spinning solution; and performing processes such as wet spinning, solidification molding, acetalation treatment and the like to obtain the compound protein fiber. The invention has the characteristics that: the compound protein fiber which has a high mechanical property, a high moisture absorption property, high air permeability, a high dyeing property, smooth handfeel, soft luster, skin intimate performance and health-care performance and is comfortably worn is manufactured by performing blending and copolymerization modification on the polyvinyl alcohol by using the collagen and the soybean protein; and the collagen and the soybean protein have wide raw material resources and low prices, a manufacturing process is relatively simple, and production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of textile industry and relates to the preparation of novel textile composite protein fibers, in particular to a composite protein fiber using collagen, soybean protein and polyvinyl alcohol as raw materials and a manufacturing method thereof. Background technique [0002] Textile fibers are divided into natural fibers and synthetic fibers. Natural fibers have excellent hygroscopicity and air permeability, and are comfortable to wear, but their output is low and their strength is insufficient; while synthetic fibers have advantages such as high strength and large output, they have major deficiencies in terms of wearing comfort and health, and they are dyed. Sex is not good. Therefore, people have higher and higher requirements for fiber consumption, and pursue natural, comfortable, healthy and colorful. How to utilize natural fiber and synthetic fiber to carry out composite, obtain high-performance, high-q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/10D01F11/02D01F11/06D01D1/02D01D5/06
Inventor 刘三民张志勤
Owner SHANGHAI QUANYU BIO TECH SUIPING
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