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Hair dye as well as preparation method and use method thereof

A hair dye, PH value technology, used in hair care, pharmaceutical formulations, cosmetic preparations, etc., can solve the problems of difficulty in preservation, affecting the effect of hair dyeing, etc., and achieve the effect of promoting hair growth and regeneration, and good water solubility and compatibility.

Inactive Publication Date: 2020-11-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventor found in the research that 5,6-dihydroxyindole is active and easily oxidized, and it is difficult to preserve it due to its synthesis by conventional methods, and excessive oxidation will seriously affect the hair dyeing effect

Method used

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  • Hair dye as well as preparation method and use method thereof
  • Hair dye as well as preparation method and use method thereof
  • Hair dye as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] On the other hand, the present invention provides a kind of preparation method of above-mentioned hair dye, comprises the following steps:

[0057] Preparation of agent A and agent B respectively,

[0058] Preparation A agent specifically comprises the following steps:

[0059] A1. Mix water, propylene glycol, sodium dodecylsulfonate, sodium sulfite and proanthocyanidins and heat to 60-80°C to obtain a water phase;

[0060] A2. Mix oleic acid, cetearyl alcohol and isopropanol and heat to 60-80°C to obtain an oil phase;

[0061] A3. Add the oil phase to the water phase and stir, keep warm at 60-80°C for 10-20min, add 5,6-dihydroxyindole and stir for 10-20min, sodium alginate, agar, xanthan gum, betaine, Add sodium bicarbonate to adjust the pH value to about 9-11 to obtain Agent A;

[0062] Above each component consumption is according to the composition ratio of above-mentioned hair dye;

[0063] Preparation B agent specifically comprises the following steps:

[006...

Embodiment 1

[0073] A hair dye, prepared according to the following method:

[0074] Prepare A agent and B agent respectively, prepare A agent, specifically comprise the following steps:

[0075] A1. Mix water, propylene glycol, sodium dodecylsulfonate, sodium sulfite and proanthocyanidins and heat to 60-80°C to obtain a water phase;

[0076] A2. Mix oleic acid, cetearyl alcohol and isopropanol and heat to 60-80°C to obtain an oil phase;

[0077] A3. Add the oil phase to the water phase and stir, keep warm at 60-80°C for 10-20min, add 5,6-dihydroxyindole and stir for 10-20min, sodium alginate, agar, xanthan gum, betaine, Add sodium bicarbonate to adjust the pH value to about 9-11 to obtain Agent A;

[0078] Preparation B agent specifically comprises the following steps:

[0079] B1. Mix water, propylene glycol, and sodium dodecylsulfonate and heat to 60-80°C to obtain an aqueous phase;

[0080] B2. Mix oleic acid, oleyl alcohol, isopropanol, and hydroxypropyl methylcellulose and heat t...

experiment example

[0093] 1. Hair dyeing effect experiment:

[0094] In order to verify the effect of the hair dye of the present invention, the hair dye prepared in Example 1 was dyed. In the experiment, 1g of natural white hair was clipped, dipped in a 1:1 mixture of agents A and B, applied to the white hair, and washed off after 30 minutes.

[0095]

[0096]

[0097] In the above table, L, a, b are the parameters of the standard international color space map, the L value refers to black and white, the larger the L value, the whiter; the a value refers to red and green, the larger the a value, the redder; the b value refers to yellow and blue, The larger the b value, the yellower it is. As can be seen from the above table, the hair dyeing effect of the present invention is good.

[0098] 2. Stimulant experiment:

[0099] In order to prove the non-irritating effect of sodium bicarbonate instead of ammonia, a double-blind experiment was carried out behind the left and right ears. After...

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Abstract

The invention relates to a hair dye, which contains an agent A and an agent B. The agent A is prepared from 5, 6-dihydroxyindole, oleic acid, cetostearyl alcohol, propylene glycol, isopropanol, sodiumsulfite, sodium dodecyl sulfate, procyanidine, sodium alginate, agar, xanthan gum, betaine and water. Te agent B comprises hydrogen peroxide, oleyl alcohol, oleic acid, propylene glycol, isopropanol,sodium dodecyl sulfate, hydroxypropyl methyl cellulose and water. The method comprises the following steps: heating water, propylene glycol, sodium dodecyl sulfate, sodium sulfite and procyanidine toobtain a water phase; heating oleic acid, cetostearyl alcohol and isopropanol to obtain an oil phase; mixing the water phase and the oil phase, adding 5, 6-dihydroxyindole, sodium alginate, agar, xanthan gum and betaine, and stirring to obtain the agent A; heating water, propylene glycol and sodium dodecyl sulfate to obtain the water phase; heating oleic acid, oleyl alcohol, isopropanol and hydroxypropyl methyl fibers to obtain an oil phase; and mixing to obtain the B agent. The anthocyanin of the hair dye is good in oxidation resistance, and oxidative deterioration of 5, 6-dihydroxyindole can be well prevented.

Description

technical field [0001] The invention relates to a hair dye, a preparation method and a use method thereof, and belongs to the technical field of hair dyes. Background technique [0002] The Chinese belong to the yellow race, and most of them have white hair dyed black for beauty. Hair dye is well known and often used as a cosmetic having the effect of changing hair color. However, the hair dyes of the prior art generally contain the carcinogen p-phenylenediamine. At present, as consumers pursue a healthy life, more and more people put safety in the first place when choosing hair dye products. , more and more people are beginning to pursue natural raw materials, and some non-additive and non-irritating hair dye products have also emerged along with the trend. [0003] Studies have shown that hair is composed of epidermal scale layer, cortex layer, and medulla layer. The epidermal scale layer is the outermost layer of hair, which is usually translucent or colorless, allowing...

Claims

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Application Information

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IPC IPC(8): A61K8/22A61K8/34A61K8/36A61K8/44A61K8/46A61K8/49A61K8/73A61Q5/10A61Q7/00A61Q17/04
CPCA61K8/22A61K8/342A61K8/345A61K8/361A61K8/44A61K8/463A61K8/492A61K8/498A61K8/73A61K8/731A61K8/733A61K2800/522A61K2800/882A61Q5/10A61Q7/00A61Q17/04
Inventor 李乙文李昊天郭万才
Owner SICHUAN UNIV
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