Natural tint

A technology of natural hair dyes and dyes, applied in pharmaceutical formulations, etc., which can solve the problems of unsustainable coloring, unsatisfactory hair coloring effect, poor washability, light resistance and wear resistance

Inactive Publication Date: 2004-02-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this hair dye has certain toxicity, which can cause skin itching, edema, asthma, gastritis, anemia and other symptoms in people with skin allergies.
However, pure natural vegetable dyes are not durable in coloring, have poor washability, light resistance, and abrasion resistance, and the hair coloring effect is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The natural hair dye is composed of a dye base and an oxidizing agent. The oxidizing agent is sodium hydrogen phosphate. When used, the dye base and the oxidizing agent are mixed evenly in equal amounts. The components of the dye base and the total weight percentage of each component are: p-phenylenediamine 1.56 lauric acid 20.0 isopropanol 10.0 plantain water 50.44 sodium sulfite 0.5 resorcinol 0.1 sodium carboxymethyl cellulose 0.9 ammonia water 4 disodium edetate 0.5 distilled water 12.

Embodiment 2

[0026] The natural hair dye is composed of a dye base and an oxidizing agent. The oxidizing agent is sodium hydrogen phosphate. When used, the dye base and the oxidizing agent are mixed evenly in equal amounts. The components of the dye base and the total weight percentage of each component are: p-phenylenediamine 0.1 lauric acid 16.3 isopropanol 8.0 plantain water 40 sodium carboxymethyl cellulose 1.0 ammonia water 4 sodium sulfite 0.1 resorcinol 0.1 Disodium EDTA 0.5 Distilled water 29.9.

Embodiment 3

[0028] The natural hair dye is composed of a dye base and an oxidizing agent. The oxidizing agent is sodium hydrogen phosphate. When used, the dye base and the oxidizing agent are mixed evenly in equal amounts. The components of the dye base and the total weight percentage of each component are: p-phenylenediamine 0.5 lauric acid 18.0 isopropanol 12.0 plantain water 53.5 sodium sulfite 0.2 resorcinol 0.1 carboxymethyl cellulose sodium 1.2 ammonia water 4 disodium edetate 0.5 distilled water 10.

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PUM

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Abstract

A natural hair dye is composed of dye matrix and oxidant. Said dye matrix contains p-phenyldiamine, lauric acid or stearic acid, isopropanol and / or propanetriol, banana oil and / or lanolin, sodium sulfite, carboxymethylcellulose sodium, ammonia solution, Na2EDTA, and distilled water. Its advantages are high effect and safety, and low poison.

Description

technical field [0001] The present invention relates to a hair dye. Background technique [0002] Common hair dyes mainly include the following categories: [0003] ①. Long-lasting hair dye: Dye intermediates can penetrate into certain groups in the hair fiber structure to form chemical bonds and bond more firmly, so that the hair changes color, and it is resistant to acids and alkalis, etc., and can last for 6-7 weeks without fading . [0004] ②. Semi-permanent hair dye: It can withstand several washings with shampoo, and generally can maintain the dyeing effect for 3-4 weeks, but if it exceeds the retention period, it will gradually fade. [0005] ③.Temporary hair dye: easy to use, suitable for dyeing at home or temporarily modifying hair. [0006] The dyeing mechanism of permanent hair dye is as follows: [0007] Persistent hair dyes are also called oxidative hair dyes. These hair dyes use low-molecular-weight dye intermediates. Usually, these dye intermediates themse...

Claims

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Application Information

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Inventor王贵郑建华郑毫秀
OwnerCHINA UNIV OF GEOSCIENCES (WUHAN)