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Hydrolyzed fibroin peptide modified viscose fiber preparation method

A viscose fiber and silk fibropeptide technology is applied in the field of preparation of hydrolyzed silk fibropeptide to modify viscose fiber, and achieves the effects of high grafting efficiency, mild process conditions and high product added value

Active Publication Date: 2018-04-20
YIBIN PINGSHAN HUIRUI OIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of hydrolyzed silk fibroin peptide modified viscose fiber aiming at the deficiency of existing protein modified cellulose fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of silk fibroin saturated calcium chloride solution

[0024] First prepare a calcium chloride solution with anhydrous calcium chloride mass percentage of 38%, and then disperse commercially available silk fibroin peptide powder in it, wherein the mass percentage of silk fibroin peptide powder and anhydrous calcium chloride mass percentage The volume ratio (kg / L) of the 38% calcium chloride solution is 1:10. Control the temperature at 70°C and stir for 4 hours to prepare a saturated calcium chloride solution with a silk fibroin protein content of 4%, that is, prepare a silk fibroin saturated calcium chloride solution for the next step to prepare hydrolyzed silk fibroin Peptide saturated calcium chloride solution.

[0025] (2) Preparation of hydrolyzed silk fibroin peptide saturated calcium chloride solution

[0026]After step (1) is completed, cool down the silk fibroin saturated calcium chloride solution prepared in step (1) to 50°C, adjust the pH to 4...

Embodiment 2

[0034] (1) Preparation of silk fibroin saturated calcium chloride solution

[0035] First prepare a calcium chloride solution with anhydrous calcium chloride mass percentage of 40%, and then disperse commercially available silk fibroin peptide powder in it, wherein the mass percentage of silk fibroin peptide powder and anhydrous calcium chloride mass percentage The volume ratio (kg / L) of 40% calcium chloride solution is 1:15. Control the temperature at 85°C and stir for 6 hours to prepare a saturated calcium chloride solution with a silk fibroin protein mass percentage of 6%, that is, prepare a silk fibroin saturated calcium chloride solution for the next step to prepare hydrolyzed silk fibroin Peptide saturated calcium chloride solution.

[0036] (2) Preparation of hydrolyzed silk fibroin peptide saturated calcium chloride solution

[0037] After step (1) is completed, cool the silk fibroin saturated calcium chloride solution prepared in step (1) to 55°C, adjust the pH to 5...

Embodiment 3

[0045] (1) Preparation of silk fibroin saturated calcium chloride solution

[0046] First prepare a calcium chloride solution with anhydrous calcium chloride mass percentage of 42%, and then disperse commercially available silk fibroin peptide powder in it, wherein the mass percentage of silk fibroin peptide powder and anhydrous calcium chloride mass percentage The volume ratio (kg / L) of 42% calcium chloride solution is 1:20. Control the temperature at 100°C and stir for 8 hours to prepare a saturated calcium chloride solution with a silk fibroin protein mass percentage of 8%, which is to prepare a silk fibroin saturated calcium chloride solution for the next step to prepare hydrolyzed silk fibroin Peptide saturated calcium chloride solution.

[0047] (2) Preparation of hydrolyzed silk fibroin peptide saturated calcium chloride solution

[0048] After step (1) is completed, cool the silk fibroin saturated calcium chloride solution prepared in step (1) to 60°C, adjust the pH ...

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Abstract

The invention relates to a hydrolyzed fibroin peptide modified viscose fiber preparation method, and belongs to the technical field of protein modified cellulose fibers. According to the present invention, fibroin peptide powder and viscose fiber are used as raw materials, a fibroin protein saturated calcium chloride solution is prepared, a hydrolyzed fibroin peptide saturated calcium chloride solution is prepared, a hydrolyzed fibroin peptide ultra-filtration concentration liquid is prepared, a hydroxypropyl hydrolyzed fibroin peptide intermediate is prepared, hydrolyzed fibroin peptide grafted viscose fiber is prepared, and other steps are performed to prepare the hydrolyzed fibroin peptide grafted viscose fiber, wherein the grafting rate of the hydrolyzed fibroin peptide on the viscosefiber is 1.5-4.5%; epichlorohydrin is used as the cross-linking agent, and has advantages of high grafting efficiency, stably grafting of the hydrolyzed fibroin peptide, and the like; the prepared product retains the characteristics of the viscose fibers, has the functions of the hydrolyzed fibroin peptide, and further has improved anti-wrinkle property and improved dyeing effect; and the wastewater produced in the production process can be recycled by adjusting the concentration, and can be purified, such that no three-waste is produced, and the method is the typical environmentally friendlyproduction process, and is easy to popularize and apply.

Description

1. Technical field [0001] The invention belongs to the technical field of protein-modified cellulose fibers, and in particular relates to a preparation method of hydrolyzed silk fibroin peptide-modified viscose fibers. 2. Background technology [0002] Cellulose fibers include natural and regenerated fibers derived from cotton, hemp and other cellulose-based materials. They are linear polymers of D-glucose linked by β-1,4 glycosidic bonds. There are a large number of hydrophilic hydroxyl groups in its molecule, so it has the advantages of excellent moisture absorption, soft hand feeling, suitable strength, and comfortable wearing. It can be widely used in fabrics, chemical industry, national defense, environmental protection and other fields, and the demand is huge. However, cellulose fibers also have defects such as easy to be stained with bacteria, poor elasticity, easy to shrink after washing, and become bottleneck factors affecting its application. In order to improve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15C08B9/00D06M101/06
CPCC08B9/00D06M15/15D06M2101/08D06M2200/20D06M2200/50
Inventor 孙益华刘志军
Owner YIBIN PINGSHAN HUIRUI OIL CO LTD