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A kind of marine low-temperature protease mp hydrolysis hair product descaling method

A technology for low-temperature protease and hair products, which is applied in textiles and papermaking, biochemical fiber treatment, fiber treatment, etc., and can solve problems such as lack of specificity of action, difficulty in controlling the degree of hydrolysis, and affecting the quality and grade of finished color hair products.

Active Publication Date: 2016-03-02
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the hair product manufacturing industry has adopted the concentrated acid method for descaling hair products for many years, but there are many disadvantages in acid hydrolysis, such as: the degree of hydrolysis is difficult to control, and black insoluble deposits are formed after cystine and tryptophan are destroyed The surface of the hair, accompanied by the generation of stench, seriously pollutes the environment, and the tensile strength, moisture retention and anti-ultraviolet oxidation performance of the finished color hair product are greatly reduced, which seriously affects the product quality and grade of the finished color hair product, and the qualified rate of product quality is less than 50%.
It is known that keratinase is the most effective commercial hydrolytic enzyme for human hair keratin, but the test results show that keratinase has no satisfactory action specificity on human hair surface squamous layer, and it is easy to completely hydrolyze it into oligopeptides and aromatics. free amino acids, and cannot be practically used

Method used

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  • A kind of marine low-temperature protease mp hydrolysis hair product descaling method
  • A kind of marine low-temperature protease mp hydrolysis hair product descaling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare 0.2 mass % of calcium chloride, 500L of borax buffer solution of pH9, add 15g marine low-temperature protease MP (product sold in the Yellow Sea), penetrant fatty alcohol polyoxyethylene ether 500ml, add after mixing and wash and dry hair products 5 kg, and after 8 hours of treatment at 25°C, the dried product was taken out, washed with water, and dried in the air.

[0017] In the above-mentioned dried enzymatically treated hair products, 50 hairs were randomly selected for hair strength measurement, the average tensile strength reached 140.8g, and the average hair sun protection factor reached more than 10.7.

[0018] Comparison of tensile strength after enzymatic and acid descaling: listed in Table 1

[0019]

[0020] Experiments have proved that enzymatic descaling can increase the elasticity of hair, which can be intuitively reflected from the hair elasticity test (see the table above), and it can be seen from Table 1 that the tensile strength can be incr...

Embodiment 2

[0028] Prepare 0.3% by mass of calcium chloride, 500L of borax buffer solution of pH9, add 20g of marine low-temperature protease MP, 500ml of penetrant fatty alcohol polyoxyethylene ether, add 5 kilograms of washed and dried hair products after mixing, and process at 25°C for 8 After an hour, remove the hair product and wash it to dry.

[0029] In the above-mentioned dried enzymatically treated hair products, 50 hairs were randomly selected for hair strength measurement, the average tensile strength reached 140.3g, and the average hair sun protection factor reached more than 10.2.

Embodiment 3

[0031] Prepare 0.25% by mass of calcium chloride, 500L of borax buffer solution with pH9.5, add 17g of marine low-temperature protease MP, 500ml of penetrant fatty alcohol polyoxyethylene ether, add 5 kg of washed and dried hair products after mixing, and heat at 25°C After 9 hours of treatment, remove the hair product and wash it with water to dry.

[0032] In the above-mentioned dried enzymatically treated hair products, 50 hairs were randomly selected for hair strength measurement, the average tensile strength reached 141.5 g, and the average hair sun protection factor reached more than 11.1.

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Abstract

The invention relates to a method for descaling hair products by hydrolyzing marine low-temperature protease MP. The method comprises using marine low-temperature alkaline protease MP at a temperature of 20-35°C and a pH of 7 at a ratio of 2-5% (enzyme / hair product mass percentage) -10, penetrant fatty alcohol polyoxyethylene ether 0.2-1.0% by mass, action time 7-9 hours for enzymatic descaling, human hair after marine low-temperature protease MP enzymatic descaling treatment, the average tensile strength reaches 140.8g , the sun protection factor of hair reaches more than 10.7, the method is simple in process, good in effect, improves the quality and grade of the finished color hair product, and is a more effective enzymatic treatment technology for hair product descaling than acid descaling.

Description

technical field [0001] The invention relates to the field of hair product processing, in particular to a method for descaling hair products by hydrolyzing marine low-temperature protease MP. Background technique [0002] The development history of my country's human hair products industry originated in the 1950s, and has now become a relatively unique traditional export project in China. As a labor-intensive industry, it has made positive contributions to increasing the employment rate of urban and rural labor. According to customs statistics, the total import and export volume of hair products in my country in 2010 was 2.116 billion US dollars, an increase of 21.9% compared with the same period in 2009. As we all know, to produce hair products for European and American markets using oriental human hair as materials, it is necessary to first destroy the surface scale layer to make it soft enough, and then remove melanin by oxidation means to produce excellent hair products. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M16/00D06M11/155D06M15/53D06M101/12
Inventor 郝建华王跃军孙谧刘均忠
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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