CN113559004A - Colored hair dye containing dopamine and metal salt - Google Patents

Colored hair dye containing dopamine and metal salt Download PDF

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Publication number
CN113559004A
CN113559004A CN202110872069.3A CN202110872069A CN113559004A CN 113559004 A CN113559004 A CN 113559004A CN 202110872069 A CN202110872069 A CN 202110872069A CN 113559004 A CN113559004 A CN 113559004A
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agent
metal salt
dopamine
hair dye
oleic acid
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CN113559004B (en
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袁奇娟
张键华
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Shaoxing Fuyuan Biotechnology Co ltd
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Shaoxing Fuyuan Biotechnology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A61K8/415—Aminophenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/20—Halogens; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/10—Preparations for permanently dyeing the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/88—Two- or multipart kits
    • A61K2800/882—Mixing prior to application

Abstract

The invention discloses a color hair dye containing dopamine and metal salt, which comprises an agent A and an agent B, wherein the agent A is a dyeing system, the agent B is an oxidation system, and the agent A and the agent B are stored separately and are mixed according to the mass ratio of 1:1 when in use. Wherein the agent A comprises dopamine, metal salt, isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol, sodium sulfite, ethylhexyl methoxycinnamate, cetyl and pigment. The hair dye disclosed by the invention has a good dyeing effect, can still keep a good dyeing effect after being washed by water for many times, has excellent uvioresistant performance, and can effectively solve the technical problem of poor dyeing effect of the existing hair dye.

Description

Colored hair dye containing dopamine and metal salt
Technical Field
The invention relates to a hair dye, in particular to a color hair dye containing dopamine and metal salt.
Background
Hair dyeing is one of the most common means for people to change the image, and hair dye is used as a cosmetic with the function of changing hair color and is started to become a daily necessity for more and more people. Human hair consists of three parts, namely an epidermal scale layer, a cortex layer and a medulla layer. The outermost layer is a semitransparent or colorless epidermal scale layer; the cortical layer is the portion that deposits the synthetic melanin of the human body, and the inner layer is the medullary layer. The amount of melanin deposited in the cortical layer determines the difference in color development and is also the core site in the dyeing process. Melanin is a naturally occurring pigment that imparts color to our hair. With age, it disappears from the hair, causing them to appear gray. Researchers have attempted to use synthetic melanin as an alternative to traditional dyes. Unfortunately, high concentrations of toxic heavy metals and oxidizing agents are required for it to effectively color hair. Polydopamine (PDA) is an important artificial melanin material, and has the advantages of antioxidant activity, free radical removal, high photothermal conversion efficiency, strong metal ion chelating capacity and the like.
At present, two acknowledged problems limit the continuous development of the polydopamine material in the field of hair dyeing, firstly, melanin does not have an accurate chemical structure, the structure and the performance of the melanin are difficult to be effectively regulated, and the hair dyeing effect often depends on a large number of attempts and lacks of theoretical support. Secondly, the performance of part of the materials of the poly-dopamine artificial melanin is not outstanding, so that the practical requirements of the industry cannot be met temporarily, and the poly-dopamine artificial melanin is often represented by overlong time, low dyeing firmness and the like in the field of hair dyeing.
Disclosure of Invention
Aiming at the prior art, the invention provides a colored hair dye containing dopamine and metal salt, which aims to solve the problems that the hair dyeing effect of the existing hair dye cannot be maintained for a long time.
In order to achieve the purpose, the invention adopts the technical scheme that: the color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
1-8% of dopamine, 0.5-4% of metal salt, 1-3% of isohexadecane, 1-3% of diisopropyl sebacate, 6-12% of oleic acid, 6-12% of glycerol, 6-12% of butanediol, 4-8% of sodium sulfite, 4-8% of ethylhexyl methoxycinnamate, 2-6% of cetyl PEG, 0.5-1% of pigment and the balance of deionized water;
the agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the agent A comprises the following components in percentage by mass:
1-5% of dopamine, 0.5-2% of metal salt, 1-3% of isohexadecane, 1-3% of diisopropyl sebacate, 6-8% of oleic acid, 8-12% of glycerol, 8-12% of butanediol, 4-6% of sodium sulfite, 6-8% of ethylhexyl methoxycinnamate, 4-6% of cetyl PEG, 0.5% of pigment and the balance of deionized water.
Further, the agent A comprises the following components in percentage by mass:
4% of dopamine, 1% of metal salt, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 0.5% of cetyl PEG5, and the balance of deionized water.
Further, the metal salt is any one of zinc chloride, magnesium chloride, copper sulfate and ferric chloride; the pigment is lac red.
Further, the agent B comprises the following components in percentage by mass:
18-26% of an oxidant, 12-18% of oleyl alcohol, 12-18% of oleic acid, 12-18% of propylene glycol, 12-18% of isopropanol, 1-2% of sodium dodecyl sulfate and the balance of deionized water.
Further, the agent B comprises the following components in percentage by mass:
20% of oxidant, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
Further, the oxidizing agent is hydrogen peroxide.
Further, the agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 50-80 ℃ to obtain a water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 50-80 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, uniformly stirring, preserving heat for 10-20 min at 50-80 ℃, adding dopamine, metal salt and pigment, continuously stirring for 5-10 min, and adjusting the pH value to 9-11 to obtain the aqueous emulsion.
Further, the agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 50-80 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 50-80 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, uniformly stirring, preserving heat for 10-20 min at 50-80 ℃, adding an oxidant, and adjusting the pH value to 2-4 to obtain the water-soluble organic silicon dioxide.
Further, the reagent used for pH adjustment in step (3) is phosphoric acid.
The invention has the beneficial effects that:
1. the preparation process of the agent A and the agent B in the hair dye is short and efficient, the reaction condition is mild and controllable, no obvious heat release exists, and the preparation method is suitable for preparing hair dyeing raw materials on a large scale.
2. Metal ions are introduced into the agent A, so that the polymerization time of the dopamine monomer is greatly shortened, and the agent is suitable for being used by stores to quickly complete a color dyeing scheme; and the metal salt and the dopamine are coordinated and stably exist on the surface of the hair through chelation, so that the color fixing effect of the hair dye is improved.
Drawings
Fig. 1 is a raman spectrum of a dopamine-metal polymer.
Detailed Description
The following examples are provided to illustrate specific embodiments of the present invention.
Example 1
A color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
4% of dopamine, 1% of zinc chloride, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 5% of cetyl PEG, 0.5% of lac dye and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 60 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 60 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 60 deg.C for 15min, adding dopamine, zinc chloride and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
20% of hydrogen peroxide, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 60 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 60 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 60 deg.C for 15min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Example 2
A color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
1% of dopamine, 0.5% of magnesium chloride, 3% of isohexadecane, 1% of diisopropyl sebacate, 8% of oleic acid, 8% of glycerol, 12% of butanediol, 4% of sodium sulfite, 8% of ethylhexyl methoxycinnamate, 0.5% of cetyl PEG4, and 0.5% of lac dye, and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 80 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 80 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining the temperature at 80 deg.C for 10min, adding dopamine, magnesium chloride and lac red pigment, stirring for 5min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 9.
The agent B comprises the following components in percentage by mass:
18% of hydrogen peroxide, 18% of oleyl alcohol, 12% of oleic acid, 18% of propylene glycol, 12% of isopropanol, 1% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 80 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 80 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 80 deg.C for 10min, adding hydrogen peroxide, and adjusting pH to about 4 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Example 3
A color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
5% of dopamine, 2% of copper sulfate, 1% of isohexadecane, 3% of diisopropyl sebacate, 6% of oleic acid, 12% of glycerol, 8% of butanediol, 6% of sodium sulfite, 6% of ethylhexyl methoxycinnamate, 6% of cetyl PEG, 0.5% of lac dye and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 50 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 50 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining the temperature at 50 deg.C for 20min, adding dopamine, copper sulfate and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 11.
The agent B comprises the following components in percentage by mass:
26% of hydrogen peroxide, 12% of oleyl alcohol, 18% of oleic acid, 12% of propylene glycol, 18% of isopropanol, 1% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 50 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 50 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 50 deg.C for 20min, adding hydrogen peroxide, and adjusting pH to about 2 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Example 4
A color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
1% of dopamine, 0.5% of ferric chloride, 3% of isohexadecane, 1% of diisopropyl sebacate, 12% of oleic acid, 6% of glycerol, 12% of butanediol, 4% of sodium sulfite, 8% of ethylhexyl methoxycinnamate, 2% of cetyl PEG, 1% of lac dye and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 70 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 70 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 70 deg.C for 15min, adding dopamine, ferric chloride and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
18% of hydrogen peroxide, 18% of oleyl alcohol, 12% of oleic acid, 18% of propylene glycol, 12% of isopropanol, 1% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 70 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 70 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 70 deg.C for 15min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use
Example 5
A color hair dye containing dopamine and metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
8% of dopamine, 4% of ferric chloride, 1% of isohexadecane, 3% of diisopropyl sebacate, 6% of oleic acid, 12% of glycerol, 6% of butanediol, 8% of sodium sulfite, 4% of ethylhexyl methoxycinnamate, 6% of cetyl PEG, 0.5% of lac dye and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 60 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 6 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 50 deg.C for 20min, adding dopamine, ferric chloride and lac red pigment, stirring for 20min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
26% of hydrogen peroxide, 12% of oleyl alcohol, 18% of oleic acid, 12% of propylene glycol, 18% of isopropanol, 1% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 60 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 60 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 60 deg.C for 20min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Comparative example 1
A color hair dye containing p-phenylenediamine comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
4% of p-phenylenediamine, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 5% of cetyl PEG, 0.5% of lac dye and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 60 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 60 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 60 deg.C for 15min, adding p-phenylenediamine and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
20% of hydrogen peroxide, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 60 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 60 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 60 deg.C for 15min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Comparative example 2
A color hair dye containing dopamine comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
4% of dopamine, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 5% of cetyl PEG and 0.5% of lac dye, and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 60 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 60 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 60 deg.C for 15min, adding dopamine and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
20% of hydrogen peroxide, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 60 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 60 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 60 deg.C for 15min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Comparative example 3
A color hair dye containing metal salt comprises an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
1% of zinc chloride, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 5% of cetyl PEG and 0.5% of lac dye, and the balance of deionized water.
The agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 60 deg.C to obtain water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 60 deg.C to obtain oil phase;
(3) adding the oil phase into the water phase, stirring, keeping the temperature at 60 deg.C for 15min, adding zinc chloride and lac dye, stirring for 10min, adding appropriate amount of sodium hydroxide, and adjusting pH to about 10.
The agent B comprises the following components in percentage by mass:
20% of hydrogen peroxide, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
The agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 60 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 60 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, stirring, maintaining at 60 deg.C for 15min, adding hydrogen peroxide, and adjusting pH to about 3 with phosphoric acid.
The agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
Analysis of results
In order to understand the polymerization form of dopamine and metal salt in the hair dye of the present invention, raman spectroscopy was performed on the hair dye, and the results are shown in fig. 1. The catechol content after polymerization was 996cm-1And 721cm-1The in-plane and out-of-plane C-H deformation zones almost disappear; at 1626cm-1A new metal coordination peak appears corresponding to the multi-ring deformation vibration, which indicates that the polymer structure is formed.
The hair dye of example 1 was used as an example to explain the hair dyeing effect of the hair dye in the example 2, because the results of examples 2 to 5 were substantially the same as those of example 1, when white hair was taken and the hair dye of example and comparative example were used to conduct a coating experiment on the sample white hair. The hair dyeing effect was evaluated as a score, with the following criteria:
a very poor 1; poor 2; in general 3; good 4; very preferably 5.
The dyeing effects of the hair dyes in the examples and comparative examples are shown in Table 1.
TABLE 1 Hair dyeing Effect of Hair dyes
Figure BDA0003189151610000121
In order to verify the effect of the hair dye of the present invention, hair dyeing was performed by taking the hair dye prepared in example 1 as an example. The agent A and the agent B in the example 1 are mixed according to the mass ratio of 1:1, 2g of white hair is taken, the mixture of the agent A and the agent B is dipped and evenly coated on the surface of the white hair. After 30min, the hair was washed and the hair dyeing effect was measured at 28 ℃ and the results are shown in Table 2. As can be seen from table 2, the hair dyeing effect of the present invention is superior.
TABLE 2 Hair dyeing Effect of the Hair dye of example 1
Figure BDA0003189151610000131
Note: l, a and b are parameters of a standard international color space diagram, the value of L refers to black and white, and the larger the value of L is, the whiter the value of L is; the value a refers to red and green, and the larger the value a is, the more red the value a is; the b value means yellow blue, the larger the b value, the more yellow.
In order to verify the fixation effect of the hair dye, the hair dye prepared in example 1 was used as an example and compared with the hair dye in the comparative example, and the results are shown in table 3.
TABLE 3 comparison of fixation effects of hair dyes
Figure BDA0003189151610000132
As can be seen from Table 3, the coloring agent of the present invention has good dyeing effect and strong color fixing ability, and can maintain good dyeing effect even after being washed for many times.
Comparative example 1 compared with example 1, the substitution of p-phenylenediamine for the dopamine-metal polymer showed a comparable effect to that of example 1, indicating that the same hair dyeing effect as that of the conventional hair dye can be achieved by the method of the present invention. However, p-phenylenediamine is highly harmful to the human body, and therefore the use of p-phenylenediamine is avoided as much as possible.
Comparative example 2 in comparison with example 1, the hair dye lacks metal salt, and the hair dye lacks metal salt, which is similar to the conventional dopamine hair dye, and although the black dyeing effect is good, the color fading is serious.
Comparative example 3 in comparison with example 1, the lack of dopamine in the hair dye resulted in complete failure of the hair to be dyed, and the lack of attachment sites for pigments resulted in complete failure of the coloring, with test results very close to white hair.
UVA, UVB and visible light may cause photodamage to hair, the extent of damage varying with wavelength. UVB mainly causes the loss of hair proteins, UVA promotes color change. The ultraviolet protection of hair includes the protection of natural pigments of hair itself and the protection of external products, and can prevent ultraviolet damage by depositing hair dyes on the hair cortex and the cortex, and the ultraviolet protection ability of different dyes is different. Samples were tested in dry and relaxed state using the same uv resistance test method as for fabric, 4 pieces for each sample. The samples need not be preconditioned, but are particularly demanding in the testing environment [ e.g., relative humidity (50% ± 20%) ]. From the ultraviolet transmittance obtained by the test, the average transmittance of UVA and UVB was calculated for each wavelength, and T represents the ultraviolet transmittance, and the results are shown in table 4.
TABLE 4 anti-UV ability of hair dye
Figure BDA0003189151610000141
While the present invention has been described in detail with reference to the embodiments, it should not be construed as limited to the scope of the patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims (10)

1. A colorful hair dye containing dopamine and metal salt is characterized by comprising an agent A and an agent B, wherein the agent A is a dyeing system, and the agent B is an oxidation system; the agent A comprises the following components in percentage by mass:
1-8% of dopamine, 0.5-4% of metal salt, 1-3% of isohexadecane, 1-3% of diisopropyl sebacate, 6-12% of oleic acid, 6-12% of glycerol, 6-12% of butanediol, 4-8% of sodium sulfite, 4-8% of ethylhexyl methoxycinnamate, 2-6% of cetyl PEG, 0.5-1% of pigment and the balance of deionized water;
the agent A and the agent B are stored separately and mixed according to the mass ratio of 1:1 when in use.
2. The colored hair dye containing dopamine and metal salt according to claim 1, wherein the agent A is composed of the following components in percentage by mass:
1-5% of dopamine, 0.5-2% of metal salt, 1-3% of isohexadecane, 1-3% of diisopropyl sebacate, 6-8% of oleic acid, 8-12% of glycerol, 8-12% of butanediol, 4-6% of sodium sulfite, 6-8% of ethylhexyl methoxycinnamate, 4-6% of cetyl PEG, 0.5% of pigment and the balance of deionized water.
3. The colored hair dye containing dopamine and metal salt according to claim 2, characterized in that the agent A consists of the following components in percentage by mass:
4% of dopamine, 1% of metal salt, 2% of isohexadecane, 2% of diisopropyl sebacate, 7% of oleic acid, 10% of glycerol, 10% of butanediol, 5% of sodium sulfite, 7% of ethylhexyl methoxycinnamate, 5% of cetyl PEG and 0.5% of pigment, and the balance of deionized water.
4. The colored hair dye containing dopamine and metal salt according to claims 1 to 3, characterized in that: the metal salt is any one of zinc chloride, magnesium chloride, copper sulfate and ferric chloride; the pigment is lac red.
5. The colored hair dye containing dopamine and metal salt according to claim 1, wherein the agent B consists of the following components in percentage by mass:
18-26% of an oxidant, 12-18% of oleyl alcohol, 12-18% of oleic acid, 12-18% of propylene glycol, 12-18% of isopropanol, 1-2% of sodium dodecyl sulfate and the balance of deionized water.
6. The colored hair dye containing dopamine and metal salt according to claim 5, characterized in that the agent B consists of the following components in percentage by mass:
20% of oxidant, 16% of oleyl alcohol, 16% of oleic acid, 15% of propylene glycol, 15% of isopropanol, 2% of sodium dodecyl sulfate and the balance of deionized water.
7. The colored hair colorant comprising dopamine and metal salt according to claim 5 or 6, characterized in that: the oxidant is hydrogen peroxide.
8. The colored hair dye containing dopamine and metal salt according to any one of claims 1 to 3, characterized in that the agent A is prepared by the following steps:
(1) mixing deionized water, sodium sulfite and ethylhexyl methoxycinnamate, and heating to 50-80 ℃ to obtain a water phase;
(2) mixing isohexadecane, diisopropyl sebacate, oleic acid, glycerol, butanediol and cetyl PEG, and heating to 50-80 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, uniformly stirring, preserving heat for 10-20 min at 50-80 ℃, adding dopamine, metal salt and pigment, continuously stirring for 5-10 min, and adjusting the pH value to 9-11 to obtain the aqueous emulsion.
9. The colored hair dye containing dopamine and metal salt according to any one of claims 1 to 3, characterized in that the agent B is prepared by the following steps:
(1) mixing deionized water, propylene glycol and sodium dodecyl sulfate, and heating to 50-80 ℃ to obtain a water phase;
(2) mixing oleic acid, oleyl alcohol and isopropanol, and heating to 50-80 ℃ to obtain an oil phase;
(3) adding the oil phase into the water phase, uniformly stirring, preserving heat for 10-20 min at 50-80 ℃, adding an oxidant, and adjusting the pH value to 2-4 to obtain the water-soluble organic silicon dioxide.
10. The hair dye containing silica nanoparticles-supported dihydroindoxyl carboxylic acid according to claim 9, which is characterized in that: the reagent used for pH adjustment in step (3) is phosphoric acid.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107328A (en) * 1993-11-30 1995-08-30 布里斯托尔-迈尔斯斯奎布公司 Process and kit for dyeing hair
CN109394558A (en) * 2018-11-16 2019-03-01 西南医科大学 A kind of method of preparation and the hair dyeing of imitative melanin hair dyed agent
CN112641645A (en) * 2020-12-29 2021-04-13 江南大学 Safe and nontoxic dyeing and scalding agent, preparation method and application
CN112972300A (en) * 2021-02-02 2021-06-18 同济大学 Polydopamine hair dye and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107328A (en) * 1993-11-30 1995-08-30 布里斯托尔-迈尔斯斯奎布公司 Process and kit for dyeing hair
CN109394558A (en) * 2018-11-16 2019-03-01 西南医科大学 A kind of method of preparation and the hair dyeing of imitative melanin hair dyed agent
CN112641645A (en) * 2020-12-29 2021-04-13 江南大学 Safe and nontoxic dyeing and scalding agent, preparation method and application
CN112972300A (en) * 2021-02-02 2021-06-18 同济大学 Polydopamine hair dye and preparation method thereof

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