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Protein/cellulose fiber preparation method based on cellulase activation treatment

A technology of cellulose fiber and cellulase, which is applied in fiber treatment, biochemical fiber treatment, enzyme/microbial biochemical treatment, etc., can solve the problem of poor washing resistance of silkworm chrysalis protein modified cellulose fiber and grafting of collagen viscose fiber Low efficiency, not conducive to production safety and environmental protection, etc., to achieve the effect of good product performance, excellent wearing performance, and bright color

Active Publication Date: 2021-12-28
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1), silk fiber is expensive, and extracting silk protein from it to prepare protein tencel fiber is not conducive to the economic benefits of industrial production; 2), the silk protein tencel fiber prepared by this method is , the combination of silk protein and cellulose is a physical combination, which is not conducive to the fixation of protein, and is not conducive to the washing fastness of fibers
Its disadvantages are: 1), the prepared collagen viscose fiber has a low grafting rate, resulting in too low protein content in the fiber, which has no economic significance for industrialization; 2), the initiator cerium ammonium nitrate has a combustion-supporting effect, and is not easy for organic matter Mixed, not conducive to the safety of production
Since no cross-linking agent is used in this method, the water-washing resistance of the prepared silkworm chrysalis protein-modified cellulose fiber is poor, and it lacks industrial significance
At the same time, the oxidizing agent used in this method is a strong oxidizing agent, which is not conducive to production safety and environmental protection.

Method used

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  • Protein/cellulose fiber preparation method based on cellulase activation treatment
  • Protein/cellulose fiber preparation method based on cellulase activation treatment
  • Protein/cellulose fiber preparation method based on cellulase activation treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Weigh 300g of surfactant alkyl glucoside, add it into 19.7L of industrial soft water, stir evenly, and prepare a pretreatment solution with a mass fraction of alkyl glucoside of 1.5%.

[0046] Add the above pretreatment solution into the reaction kettle, weigh 1Kg viscose fiber, disperse evenly in the pretreatment solution, raise the temperature to 40°C, stir for 0.5h, remove the pretreated viscose fiber and collect the waste liquid.

[0047] Add 20L of industrial soft water into the reaction kettle, add the pretreated viscose fiber, wash at room temperature, and dry the water. Repeat washing twice to obtain pretreated viscose fiber.

[0048] Add all the pretreated viscose fibers prepared above into a reaction kettle with 20L of industrial soft water, raise the temperature to 50°C under constant stirring, then add 10g of liquid cellulase, and activate the reaction for 0.5h. The pH value of the reaction solution was adjusted to 4.0 with glacial acetic acid solution, the...

Embodiment 2

[0061] Weigh 200g of surfactant alkyl glucoside, add it into 19.8L of industrial soft water, stir evenly, and prepare a pretreatment solution with a mass fraction of alkyl glucoside of 1%.

[0062] Add the above pretreatment solution into the reaction kettle, weigh 1Kg of cotton fibers, disperse evenly in the pretreatment solution, raise the temperature to 45°C, stir for 0.8h, remove the pretreated cotton fibers and collect the waste liquid.

[0063] Add 25L of industrial soft water into the reaction kettle, add the pretreated cotton fibers, wash at room temperature, and dry the water. Washing was repeated once to obtain pretreated cotton fibers.

[0064] Add all the pretreated cotton fibers prepared above into a reaction kettle with 23L of industrial soft water, raise the temperature to 40°C under constant stirring, then add 15g of liquid cellulase, and activate the reaction for 0.6h. The pH value of the reaction solution was adjusted to 4.2 with glacial acetic acid solution...

Embodiment 3

[0073] Weigh 400g of surfactant alkyl glucoside, add it into 19.6L of industrial soft water, stir evenly, and prepare a pretreatment solution with a mass fraction of alkyl glucoside of 2%.

[0074] Add the above pretreatment liquid into the reaction kettle, weigh 1Kg of Tencel fibers, disperse them evenly in the pretreatment liquid, raise the temperature to 50°C, stir for 1 hour, remove the pretreated Tencel fibers and collect the waste liquid.

[0075] Add 23L of industrial soft water into the reaction kettle, add the pretreated Tencel fiber, wash at room temperature, and dry the water. Washing was repeated twice to obtain pretreated tencel fibers.

[0076] Add all the pretreated Tencel fibers prepared above into a reaction kettle with 25L of industrial soft water, raise the temperature to 55°C under constant stirring, then add 30g of liquid cellulase, and activate the reaction for 0.8h. The pH value of the reaction solution was adjusted to 4.5 with glacial acetic acid solut...

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Abstract

The invention relates to a protein / cellulose fiber preparation method based on cellulase activation treatment, which uses protein powder and cellulose fiber as raw materials, and performs alkyl glycoside pretreatment and cellulase activation on the cellulose fiber in sequence, and then A protein / cellulose fiber with a protein content of 1-5% is prepared by grafting proteins with a cross-linking agent polyvinyl glycidyl ether. Based on the specificity, high efficiency, green environmental protection and other characteristics of cellulase, the present invention not only has a protein / cellulose fiber protein grafting efficiency > 50%, but also has excellent mechanical properties of the fiber, excellent wearing performance, and relatively high textile processing performance. it is good.

Description

technical field [0001] The invention belongs to the technical field of preparation of functionalized cellulose fibers, and relates to a method for preparing protein / cellulose fibers, in particular to a method for preparing protein / cellulose fibers by cellulase activation treatment. Background technique [0002] Cellulose fiber is mainly divided into natural cellulose fiber and regenerated cellulose fiber, which is a textile raw material with excellent performance. In recent years, the market share of traditional cellulose fibers is gradually declining due to their shortcomings such as lack of functionality and low added value. With the development of science and technology and people's pursuit of a better life, functionally modified cellulose fibers are becoming more and more popular among consumers. Therefore, the development of various functional cellulose fibers, such as flame-retardant cellulose fibers, protein / cellulose fibers, etc., has become a current research hotsp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15D06M16/00D06M15/333D06M13/165D06M101/06
CPCD06M15/15D06M16/003D06M15/333D06M13/165D06M2101/06
Inventor 狄友波殷轩王伟吴杏
Owner TAIYUAN UNIV OF TECH
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