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Multicolor non-toxic hair dye and preparation method and dying method thereof

A technology for hair dyes and pigments, applied in hair care, pharmaceutical formulations, cosmetic preparations, etc., can solve problems such as single dyeing of graphene hair dyes, restrictions on commercial promotion and use, and graphene biosafety disputes, etc. Strong coloring durability, great application potential, short coloring time effect

Inactive Publication Date: 2019-06-07
SOUTHWEST MEDICAL UNIVERISTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, there are great controversies and hidden dangers in the biological safety of graphene; on the other hand, graphene hair dyes have relatively single types of dyeing, complex formulas, high raw material costs and unsatisfactory dyeing effects, which limit its commercialization. and use

Method used

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  • Multicolor non-toxic hair dye and preparation method and dying method thereof
  • Multicolor non-toxic hair dye and preparation method and dying method thereof
  • Multicolor non-toxic hair dye and preparation method and dying method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A multi-color nontoxic hair dye, the hair dye includes A agent and B agent, the A agent includes catecholamine or a derivative of catecholamine, a thickener, a pH regulator, a pigment additive and water; the B agent includes an oxidizing agent , thickener, pH regulator and water.

[0032] In a specific embodiment, the mass concentration w / v of each component contained in the agent A is respectively: 0.01-5% for catecholamines or derivatives of catecholamines, 1-30% for thickeners, and 0.01% for pH regulators ~10%, the color additive is 0~3%, and the rest is water.

[0033] The mass concentration w / v of each component contained in the agent B is respectively: 0.01-5% of oxidant, 1-30% of thickener, 0.01-10% of pH regulator, and the rest is water.

[0034] The catecholamine contained in agent A consists of dopamine or a derivative of dopamine, levodopa or a derivative of levodopa, epinephrine or a derivative of epinephrine, and norepinephrine or a derivative of norepinep...

Embodiment 2

[0041] see figure 1 , a preparation method of a multi-color non-toxic hair dye, respectively catecholamines or derivatives of catecholamines, pigment additives, pH regulators, thickeners according to the mass concentration w / v respectively catecholamines or derivatives of catecholamines are 0.01 to 5 %, the thickener is 1-30%, the pH regulator is 0.01-10%, the pigment additive is 0-3%, and the proportion is dissolved in water to make A agent;

[0042] The oxidizing agent, the pH adjusting agent and the thickening agent are respectively dissolved in water according to the ratio of 0.01-5% of the oxidizing agent, 1-30% of the thickening agent and 0.01-10% of the pH adjusting agent to prepare agent B.

[0043] In a specific embodiment, the catecholamine contained in agent A is composed of dopamine or a derivative of dopamine, levodopa or a derivative of levodopa, epinephrine or a derivative of epinephrine, and norepinephrine or a derivative of norepinephrine. Derivatives are com...

Embodiment 3

[0050] Using the hair dyeing method of a multi-color non-toxic hair dye in Example 1, at room temperature, according to the color to be dyed, take an appropriate amount of agent A and agent B in the container and mix evenly, and then apply it evenly on the hair with a hair dyeing comb , After waiting for 30-60 minutes, rinse your hair with clean water.

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Abstract

The invention discloses a multicolor non-toxic hair dye and a preparation method and dying method thereof. The multicolor non-toxic hair dye is characterized by comprising an A agent and a B agent, wherein the A agent comprises catecholamine or a catecholamine derivative, a thickening agent, a pH-regulating agent, a pigment additive and water; and the B agent comprises an oxidizer, a thickening agent, a pH-regulating agent and water. The catecholamines substances are adopted and oxidized by the oxidizer, so that melanin analogues high in surface adhesion properties are formed, and are coated to the surface of hair in an in situ manner, and the surface color of hair can be changed. Compared with a conventional hair dye, the hair dye disclosed by the invention is free from toxin, and betterin biological safety. The hair dye is high in dying stability, low in cost, simple in preparation technology and favorable for environment prevention, can well meet color diversity requirements, doesnot need to be heated when being used, can be applied to the surface of the hair after the A agent and the B agent are uniformly mixed, and is simple to operate during dying, short in dying time, andwidely applied to various crowds.

Description

technical field [0001] The invention relates to a hair dye, in particular to a multi-color non-toxic hair dye, a preparation method thereof and a hair dyeing method. Background technique [0002] Hair dyes have a long history of use. The main hair dyes currently on the market are permanent hair dyes, which use alkalis (such as ammonia) to swell and open the cuticle scales on the hair surface, allowing aromatic amines and / or phenol-based colorants (such as terephthalate) amines and p-aminophenol) can penetrate deep into the hair. Oxidizing agents such as hydrogen peroxide are used to bleach natural melanin and initiate reactions between the pigments to synthesize the final dye compound. However, p-phenylenediamine, the main component of traditional commercial hair dyes, is a recognized carcinogen, which may cause serious adverse consequences such as allergic reactions, hair loss, and systemic toxicity after ingestion. In addition, the extensive use of alkalizing agents can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/41A61Q5/10
Inventor 付琦峰夏之宁张开莲高蝶邱艳易高圯尹红钢
Owner SOUTHWEST MEDICAL UNIVERISTY
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