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Natural hair dyeing agent prepared by plant pigment catechu and hair dyeing method thereof

A technology for natural hair dyes and plant pigments, applied in the field of natural hair dyes and hair dyes, can solve the problems of high price of hematoxylin, and achieve the effects of good hair dyeing effect, low cost and no toxic and side effects

Inactive Publication Date: 2008-04-23
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hair dye does not use harmful reagents, and no toxic substances are produced in the reaction, but hematoxylin is more expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Agent A: catechin 20g, ethanol 100g, add water to 200g;

[0015] Agent B: FeSO 4 ·7H 2 O 10g, reduced iron powder 2.0g, polyethylene glycol 10g, carboxymethyl cellulose 2g, acetic acid 0.3g, lavender essence 0.2g, add water to 200g.

[0016] Hair dyeing method: apply agent A evenly on the washed hair, dye hair at 40°C for 30 minutes, then apply agent B evenly on the hair, mordant for 20 minutes, wash and dry the hair, the hair is natural dark brown black.

Embodiment 2

[0018] Agent A: catechin 6g, ethanol 50g, add water to 200g;

[0019] Agent B: FeSO 4 ·7H 2 O 2g, reduced iron powder 0.4g, polyethylene glycol 20g, carboxymethyl cellulose 10g, acetic acid 1g, lavender essence 0.6g, add water to 200g.

[0020] Hair dyeing method: apply agent A evenly on the washed hair, dye the hair at room temperature for 40 minutes, then apply agent B evenly on the hair, mordant for 10 minutes, wash and dry the hair, the hair is naturally light brown and black.

Embodiment 3

[0022] Agent A: catechin 10g, ethanol 20g, add water to 200g;

[0023] Agent B: FeSO 4 ·7H 2 O 4g, reduced iron powder 0.8g, polyethylene glycol 6g, carboxymethyl cellulose 4g, acetic acid 1g, lavender essence 0.2g, add water to 200g.

[0024] Hair dyeing method: Apply agent A evenly to the washed hair, dye hair at 40°C for 20 minutes, then apply agent B evenly to the hair, mordant for 10 minutes, wash and dry the hair, the hair is natural brown-black.

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Abstract

The present invention relates to a hair-dying agent, in particular, it relates to a natural hair-dying agent prepared by adopting plant colour matter catechu and its hair-dying method. Said hair-dying agent includes agent A and agent B. The agent A includes (by wt%) 3-10% of plant colour matter catechu, 10-50% of organic solvent and the rest is water; and the agent B includes (by wt%) 1-5% of ferrous salt mordant, 0.2-1.0% of reduced iron powder, 1-10% of surfactant, 1-5% of thickening agent, proper quantity of acidifying agent, 0.1-0.3% of natural essence and the rest is water. The catechu is a traditional Chinese medicinal material, and has the functions of clearing away heat, astringing dampness, resisting bacteria and inhibiting bacteria.

Description

technical field [0001] The invention relates to a hair dye, in particular to a natural hair dye prepared by using plant pigment catechin and a hair dyeing method thereof. Background technique [0002] At present, most of the hair dyes produced at home and abroad are made of p-phenylenediamine and its derivatives. 2 o 2 Wait for the oxidant to produce dyes and dye the hair. The biggest disadvantage of this hair dye is that it may cause skin allergies to 0.4 to 6.3% of users, and has short-term toxic and long-term carcinogenic effects. In this context, there has been a lot of interest in non-toxic hair dyes prepared with natural pigments. Federal German Patent No. 3715326 describes a hair dye developed with natural pigments consisting of two agents, one of which contains copper salts in its medium and the other contains brazilian red or other Hydroxy derivative hematoxylin, the two doses are applied to the hair in separate steps. The main disadvantage of this hair dye is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/97A61K8/19A61Q5/10
Inventor 侯秀良高海燕刘启国吴慧慧
Owner JIANGNAN UNIV
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