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Natural-plant-pigment hair dye and preparation method thereof

A technology for natural plant pigments and hair dyes, applied in the field of natural plant pigment hair dyes and their preparation, can solve problems such as damage to hair health, easy oxidative discoloration, toxicity of hair dyes, etc., and achieves absorption promotion, enhanced hydrophobicity, good affinity skin effect

Inactive Publication Date: 2018-08-17
王敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a natural plant pigment hair dye and its preparation method in view of the toxicity of existing hair dyes, damage to hair health, poor coloring effect, and easy oxidative discoloration

Method used

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  • Natural-plant-pigment hair dye and preparation method thereof

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Embodiment Construction

[0025] Take 1~2g curcumin, add 30~50g dimethylformamide, stir at 300~400r / min for 10~15min, then add 20~30g thioglycolic acid, 1.2~2.4g sodium bisulfate, and heat to 120~ At 130℃, the temperature is kept and stirred for 2~3h to obtain the reaction solution. Add 8~10g of sodium sulfide and 50~80g of 95% ethanol solution to the reaction solution, keep the reaction at 120~130℃ for 1~2h, and cool to Filter after room temperature, wash the filter residue with deionized water 3 to 5 times, then place the washed filter residue in a vacuum drying oven and dry it to constant weight at 105-110°C to obtain modified curcumin, take 150-200 g egg white , 100~120g soy protein powder, add 200~300mL milk, stir at 300~400r / min for 20~30min to obtain the nutrient solution, take 1~2kg rabbit hair and wash it with deionized water and put it in the oven. Dry it at ~55℃ for 2~3h, then transfer it to a pulverizer to pulverize to 1~5mm fragments, add 10~20kg of rabbit hair fragments to 2% sodium hydrox...

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Abstract

The invention relates to natural-plant-pigment hair dye and a preparation method thereof and belongs to fine chemical engineering. The natural-plant-pigment hair dye has the advantages that sulfydrylis connected to high-safety natural-plant-pigment dye to form active dye; during hair dyeing, disulfide bonds in hair are opened, and the sulfydryl in the active dye and sulfydryl in the hair disulfide bonds connecting together so as to achieve permanent dyeing; meanwhile, the synergic effect of rabbit hair keratin and soybean protein is utilized to fold protein molecules, hydrophobic groups and sulfydryl embedded inside the protein are exposed to enhance biological adhesion, the hydrophobic film of hair epicuticle is promoted to absorb nutritional substances, and a thin film is formed on thesurface of the hair to protect the hair; the natural-plant-pigment hair dye is nontoxic plant-source hair dye free of carcinogenicit and is good in hair dyeing effect and good in washing fastness andlight fastness.

Description

Technical field [0001] The invention relates to a natural plant pigment hair dye and a preparation method thereof, and belongs to the technical field of fine chemicals. Background technique [0002] Hair dye has a long history of application as a hair cosmetic. After long-term development, it has formed many series and is generally welcomed by consumers. There are many types of hair dyes, which can be classified from many aspects such as ingredients, formulations, shapes, dyeing principles and timeliness. In ancient times, people used plant extracts to dye their hair. Since oxidation dyes such as p-phenylenediamine and p-toluene diamine were used in hair dyes, synthetic organic hair dyes have developed rapidly. So far, they have developed oxidation dyes, acid dyes, and disperse dyes. , Direct dyes, metal dyes and other products. Oxidation dyes have become the most widely used hair dyes due to their good hair dyeing effect, long duration, and various shades. [0003] While the gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/98A61K8/35A61K8/64A61K8/73A61K8/46A61Q5/10
CPCA61K8/35A61K8/463A61K8/64A61K8/731A61K8/982A61K8/986A61K2800/4324A61K2800/5922A61Q5/10
Inventor 王敏王文新史玉玲
Owner 王敏
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