Hair dyeing method based on surface coating principle

A technology of hair dyeing and surface coating, applied in the field of hair dyeing, which can solve the problems of failure to provide safety and non-irritation, failure to enter, etc.

Active Publication Date: 2017-09-08
苏州蓬拓生物医学科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of "melanin" hair dyeing method actually also belongs to the traditional chemical hair dyeing method, and has the same technical defect. Can enter the stage of "commercialization"

Method used

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  • Hair dyeing method based on surface coating principle
  • Hair dyeing method based on surface coating principle
  • Hair dyeing method based on surface coating principle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A hair dyeing method based on the principle of surface coating, the concrete steps are as follows:

[0051] (1) Preparation of pre-staining agent

[0052] Add a given quality of pre-dye and biocompatibility additives into deionized water, adjust the pH to 8.0, and stir evenly to obtain the pre-dye. The pre-dye is best prepared and used immediately. Months, if the color becomes brown or black, it will be invalid; the components and their contents in the pre-staining agent are as follows:

[0053] Tris-HCl 0.1wt%, baking soda 0.2wt%, norepinephrine 0.5wt%, panthenol 0.5wt%, D-dopa 0.1wt%, olive oil 0.2wt%, the rest is deionized water;

[0054] (2) Preparation of dyeing agent

[0055] A given quality of coloring agent and corresponding additives are added to deionized water, and adjusted to pH = 8.0, and the coloring agent can be prepared after stirring evenly. The coloring agent can be stored for a long time under refrigerated conditions; each group in the coloring agen...

Embodiment 2

[0061] A hair dyeing method based on the principle of surface coating, the concrete steps are as follows:

[0062] (1) Preparation of pre-staining agent

[0063]Add a given quality of pre-dye and biocompatibility auxiliaries or just pre-dye into deionized water, adjust the pH to 5.8, and stir evenly to obtain the pre-dye. The pre-dye is best prepared and used immediately. It can be stored for half a month under the same conditions, and it will be invalid if the color turns brown or black; the components and their contents in the pre-staining agent are as follows:

[0064] Epinephrine (pre-dye) 0.2wt%, a-methyl dopamine 0.5wt%, L-dopa 10wt%, panthenol 0.5wt%, dopamine 0.1wt%, olive oil 0.2wt%, coconut oil 0.3wt%, glycerin 0.5wt%, squeezed lemon juice 0.5wt%, cornstarch 0.8wt%, konjac flour 0.1wt%, and the rest is deionized water;

[0065] (2) Preparation of dyeing agent

[0066] A coloring agent of a given quality and corresponding auxiliary agents are added to deionized wat...

Embodiment 3

[0072] A hair dyeing method based on the principle of surface coating, the concrete steps are as follows:

[0073] (1) Preparation of pre-staining agent

[0074] Add a given quality of pre-dye and biocompatibility auxiliaries or just pre-dye into deionized water, adjust the pH to 7.4, and stir evenly to obtain the pre-dye. The pre-dye is best prepared and used immediately. It can be stored for half a month under the same conditions, and it will be invalid if the color turns brown or black; the components and their contents in the pre-staining agent are as follows:

[0075] 5-Hydroxydopamine Hydrochloride 2wt%, Panthenol 0.5wt%, Coconut Oil 0.3wt%, Konjac Flour 0.1wt%, Carmellose Sodium 0.1wt%, Xanthan Gum 0.2wt%, the rest is phosphate buffer solution (PBS);

[0076] (2) Preparation of dyeing agent

[0077] A given quality of coloring agent and corresponding additives are added to deionized water, and adjusted to pH = 7.4, and the coloring agent can be prepared after stirrin...

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Abstract

The invention relates to a hair dyeing method based on a surface coating principle. The method includes: firstly using a pre-dying agent to pre-dye the hair surface so as to form a pre-dyed layer, and then dying the pre-dyed layer. The specific process of pre-dying includes: daubing the pre-dying agent with pH of 5-11 on clean and dried hair, maintaining the state under a natural environmental condition for certain period of time, and then performing cleaning and drying. The pre-dying agent contains a pre-dye, which can be one or more of tyrosine natural compounds with a catechol functional group, and / or one or more of derivatives thereof, and / or one or more of corresponding salts thereof. According to the invention, the pre-dye without damage to hair is employed to form the pre-dyed layer, and then the dye is coated on the pre-dyed layer, thus having no damage to the structure of hair itself. The method provided by the invention has the advantages of mild, safe and non-irritating dying conditions, simple operation, and natural dyeing color and good durability, etc.

Description

technical field [0001] The invention belongs to the field of hair dyeing, and relates to a hair dyeing method based on the principle of surface coating, in particular to a strong adhesion ability of the non-toxic, harmless and non-irritating natural pre-dye itself on the hair surface and various A method for achieving permanent coloring of hair through the interaction of dyes. Background technique [0002] Melanin is a kind of biological pigment, which usually exists in the form of polymer. Tyrosine is hydrolyzed by tyrosinase to generate dopa, which is converted into indole quinone through oxidation, decarboxylation and other reactions, and finally indole Quinone polymerizes into melanin. When the medulla of hair, the melanin granule of cortical part reduces, disappears, and all or part of hair will turn white. The appearance of gray hair is a frustrating thing especially for teenagers and middle-aged people. Therefore, many people begin to use hair dyeing to cover up gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/98A61K8/9789A61K8/9794A61K8/92A61K8/35A61K8/41A61K8/44A61K8/49A61K8/73A61Q5/10
CPCA61K8/35A61K8/415A61K8/44A61K8/492A61K8/731A61K8/732A61K8/737A61K8/922A61K8/97A61K8/987A61K2800/4324A61Q5/10
Inventor 文学军曾小梅陈江敏
Owner 苏州蓬拓生物医学科技有限公司
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