Method for carrying out colored hair dyeing based on enzymatic oxidation of tyrosine derivatives

Abstract

The invention discloses a method for carrying out colored hair dyeing based on enzymatic oxidation of tyrosine derivatives. The method comprises the following steps: (1) washing human hair with water; (2) dissolving the tyrosine derivatives in PBS (Phosphate Buffer Solution) to obtain tyrosine derivative-PBS solution; (3) dissolving polyphenol oxidase in the PBS to obtain polyphenol oxidase-PBS solution; (4) soaking the hair washed with water in the solution obtained in the step (2), adding the polyphenol oxidase-PBS solution obtained in the step (3) under the shaking or stirring condition , and performing a reaction; and (5) washing with water, absorbing moisture on the surface of the hair, and carrying out drying and color fixing. The method disclosed by the invention is simple and convenient to operate, green, friendly, safe, non-toxic, mild in reaction and stable. The method is carried out under the chemical enzymatic reaction, alkali and additional additives are not used, a dye cannot permeate into the hair cortex, and the method is a green dyeing technology which does not damage the hair.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and in particular relates to a method for coloring hair based on enzymatic oxidation of tyrosine derivatives. Background technique [0002] As the saying goes, everyone has the love of beauty. Rich and changeable hair color has long been the standard for trendy people, and with age, the fading and changing of hair color is also a problem for many people. Since ancient times, hair coloring has been the oldest among people. One of the most popular grooming practices reflects a long-standing dissatisfaction with natural hair color. Since Hofmann observed 150 years ago that p-phenylenediamine produces shades of brown on a variety of substrates when exposed to oxidizing agents, including air, it has been the basis for the most commonly used hair coloring process, although chemical The field is constantly advancing and developing, but chemical hair dye fixation is still the most commonly used hair...

AI Technical Summary

Problems solved by technology

However, the oxidation process of the selected PDA requires the addition of ammonia, H 2 o 2 and metal ions, which cannot meet the requirements of green chemistry and practical applications, and will also bring unpleasant olfactory experience during the coloring process, which is still difficult to promote and use in practice

At the same time, the colors that can be produced in the existing reports are all darker colors such as black, and it is still impossible to dye other colors, such as yellow, red, purple, etc. The preparation of rich colors with a full spectrum has always been the long-term goal of people.

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