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Natural hair dye adopting water-soluble plant melanin, preparation method thereof and hair dyeing method thereof

A technology of natural hair dye and melanin, which is applied in cosmetic preparations, pharmaceutical formulations, hair care, etc., can solve problems such as hair damage, weak adsorption, and potential safety hazards, increase permeability and adsorption, and strengthen hair dyeing effect , Safe and guaranteed effect

Active Publication Date: 2012-10-24
ZHEJIANG MEDICINE CO LTD XINCHANG PHAMACEUTICAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN 1923164A also pointed out that at present most of the black dyes are mixtures of p-phenylenediamine and quinone compounds, which form melanin through the oxidation of hydrogen peroxide, perborate, or percarbonate, etc., but this Hair dye has certain damage to the hair, and it is highly toxic, and it is very easy to be allergic, causing redness, swelling, tingling and other discomforts, and even cancer.
[0004] The hair dye mentioned in the above patent can indeed avoid the damage of p-phenylenediamine, hydroquinone and other substances to the scalp, but it also has great defects. First, the adsorption is not firm, because polyphenols chelate with metal ions Even if a strong three-dimensional complex is formed during the process, the complex may only adhere to the surface of the hair, and does not have a strong adsorption effect with the hair, and is easy to wash off. In addition, excessive metal ions in the hair dyeing process It will also be partially absorbed by the scalp, resulting in certain safety hazards

Method used

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  • Natural hair dye adopting water-soluble plant melanin, preparation method thereof and hair dyeing method thereof

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Experimental program
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Effect test

Embodiment 1

[0018] Hair dye formula: black rice leaf melanin 10g, ethanol 20g, polyethylene glycol 5g, guar gum 15g, water 50g.

[0019] Wherein, for the method of obtaining the melanin from the leaves of the black rice tree, please refer to the Chinese patent application number 201110097948.X of the applicant about the preparation method of the black rice tree black pigment.

[0020] Dissolve 10 g of the black rice leaf melanin in 50 g of warm water at 40° C., and then add 5 g of polyethylene glycol, 15 g of guar gum, and 20 g of ethanol to blend into an emulsion-like hair dye.

[0021] Hair dyeing method: apply the lotion-like hair dye evenly on clean hair, dye hair at 50°C for 30 minutes, then wash and dry the hair, and then the hair will appear natural brown-black.

Embodiment 2

[0023] Hair dye formula: 15g black rice leaf melanin, 20g ethanol, 7.5g polyethylene glycol, 13g hydroxyethyl cellulose, 44.5g water.

[0024] Wherein, for the method of obtaining the melanin from the leaves of the black rice tree, please refer to the Chinese patent application number 201110097948.X of the applicant about the preparation method of the black rice tree black pigment.

[0025] Dissolve 15 g of the black rice leaf melanin in 44.5 g of warm water at 40° C., and then add 7.5 g of polyethylene glycol, 13 g of hydroxyethyl cellulose, and 20 g of ethanol to blend into an emulsion-like hair dye.

[0026] Hair dyeing method: apply the emulsion hair dye evenly on clean hair, dye the hair at 50°C for 30 minutes, then wash and dry the hair, and then the hair will appear natural black.

Embodiment 3

[0028] Hair dye formula: 20g black rice leaf melanin, 20g ethanol, 10g polyethylene glycol, 10g methylcellulose, 40g water.

[0029] Wherein, for the method of obtaining the melanin from the leaves of the black rice tree, please refer to the Chinese patent application number 201110097948.X of the applicant about the preparation method of the black rice tree black pigment.

[0030] Dissolve 20 g of the black rice leaf melanin in 40 g of warm water at 40° C., and then add 10 g of polyethylene glycol, 10 g of methylcellulose, and 20 g of ethanol to prepare an emulsion-like hair dye.

[0031] Hair dyeing method: apply the lotion-like hair dye evenly on clean hair, dye hair at 60°C for 50 minutes, then wash and dry the hair, and then the hair will appear natural thick black.

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Abstract

The invention relates to a natural hair dye prepared through adopting water-soluble plant melanin, a preparation method thereof and a hair dyeing method thereof. The hair dye comprises 10-20wt% of Vaccinium bracteatum leaf melanin, 20wt% of ethanol, 5-10wt% of a surfactant, 5-15wt% of a thickener, and the balance water. The hair dye is uniformly smeared on clean hair, hair dyeing is carried out at 50-60DEG C for 30-50min, and then the hair is cleaned and is dried through blowing, so the hair has a natural brownish black color. Compared with hair dyes using synthesized melanin or a metal chelator, the hair dye adopting the natural plant melanin as the main body of the hair dye of the invention has a reliable safety.

Description

technical field [0001] The invention relates to a natural hair dye and a preparation method thereof. Specifically, a natural hair dye is prepared by using water-soluble black rice leaf melanin as the main body and using ethanol, water, non-ionic surfactant and thickener as auxiliary agents. Hair dye and hair dyeing method thereof. Background technique [0002] The hair dye market is constantly growing. In 2005, the global sales reached 7 billion US dollars. my country's hair dye market is also developing rapidly in recent years. At present, my country's silver-haired consumers have exceeded 60 million. They use different varieties of black hair dyes. Agent, gray hair, gray hair are dyed black, along with the aging of my country's population structure, the silver-haired consumer group will further expand (referring to Chinese patent CN 1923164A). [0003] Chinese patent CN 1923164A also pointed out that at present most of the black dyes are mixtures of p-phenylenediamine and ...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61Q5/10
Inventor 魏国华邵斌许新德吕良伟叶浣沙章鹏飞
Owner ZHEJIANG MEDICINE CO LTD XINCHANG PHAMACEUTICAL FACTORY
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