Preparation method and application method of melanin precursor substance hair dye

Abstract

The invention discloses a melanin precursor substance hair dye. The melanin precursor substance hair dye consists of a melanin precursor, a common hair dye adjuvant and water, wherein the melanin precursor includes dopachrome, 5,6-dihydroxyindole and 5,6-dihydroxyindole-2-carboxylic acid; the melanin precursor accounts for 0.01-5% of the hair dye in percentage by weight; and the common hair dye adjuvant includes one or more of a wetting penetrating agent, a thickening agent, a surfactant, a moisturizer and a pH value regulating agent. The hair dye disclosed by the invention combines the advantages of a chemically synthetic hair dye and a natural hair dye; by extracting complex enzyme liquid in natural edible fungi, such melanin precursor substances as the dopachrome, the 5,6-dihydroxyindole, the 5,6-dihydroxyindole-2-carboxylic acid and the like are synthesized through bio-conversion by virtue of amino acid, so that the hair dye is free from irritation and allergy to skin, high in safety and capable of keeping a natural black hair dyeing effect; and the hair dye has huge popularization and application values in the field of the preparation of hair dyes.

Description

technical field [0001] The invention relates to a hair dye prepared by enzyme treatment, in particular to a compound enzyme solution for extracting edible fungus enzymes, converting an amino acid substrate into a natural melanin precursor substance, and preparing it into a non-oxidative biological hair dye method. Background technique [0002] At present, with the continuous improvement of people's attention to health, chemically synthesized hair dyes contain carcinogenic and strong allergenic chemical dyeing ingredients (such as phenylenediamines, aminophenols, etc.) and some harmful ingredients (such as hydrogen peroxide) , ammonia, etc.), has been more and more people's attention. For this reason, people try to seek natural harmless, safer hair dyeing materials. For example, plant pigment hair dyes have achieved certain results, but there are still many problems. Such products still cannot avoid adding harmful substances such as phenols and hydrogen peroxide in hair dye...

AI Technical Summary

Problems solved by technology

For example, plant pigment hair dyes have achieved certain results, but there are still many problems. Such products still cannot avoid adding harmful substances such as phenols and hydrogen peroxide to hair dyes, and lack mature pigment extraction technology.

At present, there is a known method of using plant pigment catechol to prepare natural hair dye (patent document CN101164528A), but the catechol used in it is extracted from the Chinese medicinal material catechu, and its disadvantages are that the planting scale of the traditional Chinese medicinal material is limited and the cost of pigment extraction is limited. It is relatively high; it has also been reported that by genetic engineering technology, using the catechol oxidase expressed in the filamentous fungus cells of the genus Mycosis to oxidize dopa and its derivatives, and convert it into a method for melanin precursors (patent document CN101914585A ), but the mold itself will produce some toxic and harmful substances, and the production process will cause environmental pollution. At the same time, there are disadvantages such as high cost, long time consumption, unstable performance, and inability to apply in large quantities.

In the prior art, there is also a method of using the enzyme liquid extracted from the Bacillus fermentation liquid to catalyze the substrate to produce melanin precursors, but the safety and non-toxic side effects of the product cannot be guaranteed, and the pollution in the fermentation process will also affect the product quality.

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