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Circulating hair dyeing method based on metal-polyphenol network structure

A network structure, metal technology, used in pharmaceutical formulations, hair care, medical preparations containing active ingredients, etc., can solve the problems of impermeable hair dyeing, strong skin irritation, damage to hair scales, etc. Hair quality, frizz and damage avoidance effect

Inactive Publication Date: 2020-02-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of hair dye is that the oxidizing substances are highly irritating to the skin and seriously damage the hair quality.
However, when using the same conditions to dye native white hair, the effect is not good; the reason may be that the cuticles of the damaged hair after bleaching have been destroyed, the pore size has become larger, and the complex of tannic acid and iron ions can penetrate into the hair. Successfully achieve black
For the original white hair, the scales are intact, and the molecular size of tannic acid is 2.4nm, which cannot penetrate into the hair for dyeing

Method used

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  • Circulating hair dyeing method based on metal-polyphenol network structure
  • Circulating hair dyeing method based on metal-polyphenol network structure
  • Circulating hair dyeing method based on metal-polyphenol network structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 soaking method hair dyeing

[0047] Dissolve 5g of pyrogallol (PA) into 10mL tris solution (30mM), polyphenol buffer solution, add 5mL ferrous chloride tetrahydrate solution to the polyphenol buffer solution, in which chlorine tetrahydrate The molar ratio of ferrous chloride to pyrogallol is 5:1 to obtain a hair dye solution; add 0.2 g of original white hair to the hair dye solution, stir and mix well and let it stand for 30 minutes, take out the hair and blow dry, then wash and dry with clear water , got black hair.

Embodiment 2

[0049] With the dyeing method described in embodiment 1, difference is, replace ferrous chloride tetrahydrate solution with cupric chloride solution.

Embodiment 3

[0051] With the dyeing method described in embodiment 1, difference is, replace ferrous chloride tetrahydrate solution with ferric chloride hexahydrate solution.

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Abstract

The invention relates to a circulating hair dyeing method based on a metal-polyphenol network structure. Small-molecule plant polyphenol is adopted to form the metal-polyphenol network structure withmetal ions inside hair so as to develop color. According to the dyeing method disclosed by the invention, small molecules are used as raw materials, thus, under the condition that hair scales are notdamaged, the small molecules penetrate into a cortex layer and form a strong adhesive color development coating on the surface of hair, the hair is better protected, and the hair is prevented from being damaged again. The metal ions and polyphenols are polymerized in the hair, macromolecular substances are not easy to diffuse, the dyeing is firm, and the method has the advantages of washing resistance and difficulty in decolorization when the hair meets water at room temperature.

Description

Technical field: [0001] The invention relates to a cycle hair dyeing method based on a metal-polyphenol network structure, belonging to the technical field of cosmetics. Background technique: [0002] With the improvement of people's living standards, hair dyeing has not only become the main means for the elderly to cover gray hair, but also gradually become a fashion trend for young people. Currently commercially available hair dyes are mainly oxidative hair dyes, which have the characteristics of wide color spectrum and long-lasting dyeing effect. Oxidative hair dyes generally contain two components, one is oxidizing substances such as hydrogen peroxide and ammonia, which are used to open the cuticles; the other is aromatic amine compounds, which are used for hair dyeing. The disadvantage of this type of hair dye is that oxidizing substances are highly irritating to the skin and seriously damage the hair. Among them, the aromatic amine compound-p-phenylenediamine (PDD) h...

Claims

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Application Information

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IPC IPC(8): A61K8/365A61K8/34A61K8/19A61Q5/10
CPCA61K8/19A61K8/347A61K8/365A61K2800/4324A61Q5/10
Inventor 崔基炜耿慧敏
Owner SHANDONG UNIV
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