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Protein material capable of absorbing ultraviolet ray and preparation method thereof

A protein and ultraviolet technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve problems affecting the performance of cosmetics, yellowing, etc., and achieve improved ultraviolet protection performance, high fastness, and light fastness. Effect

Inactive Publication Date: 2013-06-12
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The protein powder used in cosmetics and other purposes will also appear yellowing phenomenon due to ultraviolet radiation during use, which will affect the performance of cosmetics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Silk fabric or yarn 10g, with o-nitroaniline as the reaction precursor, the bath ratio is 1:20.

[0041] The first step: use hydrochloric acid and sodium nitrite to prepare aromatic amine compounds into diazonium salts, dissolve 2.3g of o-nitroaniline in 8.9g of concentrated hydrochloric acid and 15g of water at 0°C, and slowly add the aqueous solution of sodium nitrite dropwise (1.8g sodium nitrite mixed with 4g water), keep the reaction system at 0-5°C, add dropwise for about 5 minutes, keep warm for 30 minutes, check with starch-potassium iodide test paper, destroy excess sodium nitrite with urea, and obtain heavy Nitrogen salt solution; then immerse 10g of silk fabric in 200mL aqueous solution containing 0.2g / L sodium hydroxide and 5g / L sodium carbonate, and cool to 0°C, then slowly inject the above clear diazonium salt solution into the system During this period, the silk fabric was constantly stirred or oscillated. After the injection was completed, it was kept at...

Embodiment 2

[0044] Wool fabric 10g, with p-chloro-o-nitroaniline as the reaction precursor, the liquor ratio is 1:100.

[0045]The first step is to use hydrochloric acid and sodium nitrite to prepare aromatic amine compounds into diazonium salts. Dissolve 0.5g of p-chloro-o-nitroaniline in a mixed solution of 10g of water and 1.5g of concentrated hydrochloric acid at 0°C and stir evenly Then add 0.37g sodium nitrite to the system, and then keep it warm at 0~5°C for 30min, then test it with starch-potassium iodide test paper, the excess sodium nitrite is destroyed with urea, and a diazonium salt solution is obtained; immerse 10g wool fabric into 1000mL containing Sodium hydroxide is 0.1g / L, sodium carbonate is 0.5g / L aqueous solution, and cooled to 5 ° C, then slowly inject the above-mentioned clear diazonium salt solution into the system, after the injection is completed, keep it at 5 ° C for 120 minutes, Then it was warmed up to room temperature and kept warm for 30min to obtain orange-r...

Embodiment 3

[0048] 10g of silk yarn, with p-bromo-o-nitroaniline as the reaction precursor, the liquor ratio is 1:50.

[0049] The first step is to use hydrochloric acid and sodium nitrite to prepare aromatic amine compounds into diazonium salts. Dissolve 1g of p-bromo-o-nitroaniline in a mixed solution of 10mL of concentrated hydrochloric acid and 100mL of water at 0°C, and stir evenly Add 0.37g of sodium nitrite to the system, then keep it warm at 0~5°C for 30 minutes, and test it with starch-potassium iodide test paper. Excessive sodium nitrite is destroyed with urea to prepare a diazonium salt solution; immerse 10g of silk yarn into 500mL containing Sodium hydroxide is 0.2g / L, sodium carbonate is 3.5g / L aqueous solution, and cooled to 3 ° C, then slowly inject the above-mentioned clear diazonium salt solution into the system, after the injection is completed, keep warm at 3 ° C for 100 min, Then the temperature was raised to room temperature and incubated for 30 minutes to obtain oran...

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PUM

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Abstract

The invention discloses a protein material capable of absorbing ultraviolet ray and a preparation method thereof. According to the invention, an arylamine compound containing an ortho-nitroaniline structure is subjected to diazotization and then to a coupling reaction with the ortho-position hydroxyl groups of side groups of p-hydroxybenzmethylene in tyrosine residue in protein molecules and produces a structure containing an azo bond with macro-molecular side groups of proteins, and an ortho-hydroxyphenyl-benzotriazole structure is produced through loop closure between the azo bond and ortho-nitro group of an aromatic ring after further treatment with a reducing agent. The ortho-hydroxyphenyl-benzotriazole structure connected with macro-molecular chain of protein has the capability of absorbing ultraviolet ray, which enables a prepared protein material to have the capability of ultraviolet resistance and effectively enhances the functions of ultraviolet resistance and aging resistance of the protein material.

Description

technical field [0001] The invention relates to a method for modifying protein side chain groups, in particular to a protein material with the function of absorbing ultraviolet rays and a preparation method thereof. Background technique [0002] The protein material in the present invention includes textiles made of protein fibers alone or mixed with other types of fibers, or protein powder materials and the like. Protein fiber is a type of natural fiber that was used earlier by humans and is still used in large quantities, mainly including natural fibers such as silk, wool, cashmere, poultry feathers, down, rabbit hair, rabbit hair, camel hair and human hair, and soybean fibers , milk fiber and other man-made fibers, among which silk and wool fibers are used in large amounts and are favored by people. The fabrics made of some protein fibers (such as silk fibers) are relatively light and thin. When worn in summer when the amount of ultraviolet radiation in the sun is relati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D249/18C08H1/00C08H1/06D06M13/392D06M13/432D06M101/12D06M101/04
Inventor 陈维国崔志华孟照成胡青青
Owner ZHEJIANG SCI-TECH UNIV
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