CN114028275B - Hair dye with soap catalyzing melanin polymerization, preparation method and use method thereof - Google Patents

Abstract

The invention discloses a hair dye for catalyzing melanin polymerization by soap, a preparation method and a use method thereof, wherein the hair dye comprises a first agent and a second agent; the first agent consists of the following components in percentage by mass: 5,6-dihydroxyindole: 1% -3%, C16-18 alcohol: 4% -8%, olive oil: 12% -16%, PEG-7 olive oil: 0.5% -2%, propylene glycol: 2% -8%, cysteine: 1% -6%, sodium sulfite: 0.1% -0.2%, ascorbic acid ethyl ether: 0.1-0.5%, polydimethylsiloxane: 0.2% -2%, guar gum hydroxypropyl trimethyl ammonium chloride: 0.05-0.1 percent of ethanol amine and the balance of water; the second agent is soap base and consists of the following components: olive oil: 20-30%, coconut oil: 20-30%, sodium hydroxide: 5-20 percent of water and the balance of water. The hair dye has quick coloring and good coloring effect; in addition, the hair conditioner is milder and safer, and is beneficial to improving the hair flexibility.

Description

Hair dye with soap catalyzing melanin polymerization, preparation method and use method thereof

Technical Field

The invention belongs to the field of daily chemicals, and particularly relates to a hair dye with soap catalyzing melanin polymerization, and a preparation method and a use method thereof.

Background

The color of human hair is determined by the number of melanin granules in the hair cortex. With the increasing age and the pressure caused by fast-paced working and living, the generation of melanin particles is gradually reduced, the black hair becomes grayed, and the grayed hair is more and more generally dyed black. The hair scales are only 1-2 nanometers in size, so that a plurality of melanin can not enter the hair. The basic idea of the existing permanent hair dye is as follows: micromolecules enter the hair scales firstly, and then initiators such as hydrogen peroxide, carbamide peroxide and the like are used for initiating micromolecule polymerization to obtain macromolecular black substances, and the macromolecular black substances cannot penetrate out of the hair scales, so that the color fixing effect is achieved. However, the initiator is generally highly oxidative, and can irritate the scalp and even cause irreversible damage to the hair, thereby having potential safety problems.

The existing hair dye containing 5,6-dihydroxyindole melanin gradually exposes horn of hair. Research shows that tyrosine in human body is catalyzed and oxidized to form active intermediate 5,6-dihydroxyindole, and further oxidized to form melanin. Because of the activity of the 5,6-dihydroxyindole intermediate, the intermediate is easy to oxidize and self-polymerize under the conditions of alkalinity and air, and does not need the stimulation of an initiator, the 5,6-dihydroxyindole melanin hair dye is safer for a human body. However, 5,6-dihydroxyindole melanin hair dye still has problems: although 5,6-dihydroxyindole intermediates are sufficiently active, it is still difficult to autooxidatively darken hair in air for a limited period of time, resulting in a less than optimal coloring effect.

Disclosure of Invention

The invention aims to provide a hair dye with soap for catalyzing melanin polymerization, a preparation method and a use method thereof.

The technical scheme of the invention is as follows:

the hair dye with the soap for catalyzing melanin polymerization comprises a first agent and a second agent;

the first agent is melanin hair care cream which comprises the following components in percentage by mass:

5,6-dihydroxyindole: 1% -3%, C16-18 alcohol: 4% -8%, olive oil: 12% -16%, PEG-7 olive oil: 0.5% -2%, propylene glycol: 2% -8%, cysteine: 1% -6%, sodium sulfite: 0.1% -0.2%, ascorbic acid ethyl ether: 0.1-0.5%, polydimethylsiloxane: 0.2% -2%, guar gum hydroxypropyl trimethyl ammonium chloride: 0.05 to 0.1 percent of the total weight of the waste water, and a proper amount of ethanolamine which is used for adjusting the pH value to 6 to 7; the balance of water, the mass percent of each component is 100 percent;

the second agent is soap base and consists of the following components in percentage by mass:

olive oil: 20% -30%, coconut oil: 20% -30%, sodium hydroxide: 5-20 percent of water and the balance of water.

Preferably, the first agent is 5,6-dihydroxyindole in a mass percentage of 3%.

In some embodiments, 5% to 15% milk is added to the second dose.

In some embodiments, 2% to 5% plant essential oil is added to the second agent.

In some embodiments, 1% to 3% natural petals are added to the second agent.

In the hair dye, 5,6-dihydroxyindole is a coloring agent; c16-18 alcohol and olive oil as solubilizer; PEG-7 olive oil as emulsifier; propylene glycol is a humectant; cysteine, sodium sulfite and ascorbic acid ethyl ether are used as reducing agents; the polydimethylsiloxane is used as a hair conditioner; guar gum hydroxypropyl trimethyl ammonium chloride is used as a thickening agent; ethanolamine is used as a pH regulator; olive oil and coconut oil are grease; sodium hydroxide is used as a saponifying agent; milk, plant essential oil and natural petals are used as a conditioning agent and a flavoring agent.

The invention takes the soap as a catalyst, utilizes the alkalinity brought by the hydrolysis of fatty acid in the soap and is matched with emulsification, so that air can quickly and efficiently contact hair to catalyze 5,6-dihydroxyindole to quickly polymerize to form melanin.

The preparation method of the hair dye for catalyzing melanin polymerization by the soap comprises the following steps of:

(1-1) mixing C16-18 alcohol and olive oil, and heating to 70-90 ℃ to obtain an oil phase;

(1-2) mixing and heating PEG-7 olive oil, propylene glycol, cysteine, sodium sulfite, ascorbic acid ethyl ether, guar gum hydroxypropyl trimethyl ammonium chloride and water to 70-90 ℃ to obtain a water phase;

(1-3) adding the water phase into the oil phase, stirring for 2-8 min, homogenizing and cooling to room temperature;

(1-4) adding a proper amount of ethanolamine to adjust the pH value to 6-7;

(1-5) adding polydimethylsiloxane for homogenizing, adding 5,6-dihydroxyindole, and mixing to obtain the first dose.

The preparation method of the hair dye for catalyzing melanin polymerization by the soap comprises the following steps of preparing a second agent:

(2-1) mixing and heating olive oil and coconut oil to 50-80 ℃ to obtain an oil phase;

(2-2) dissolving sodium hydroxide in water and cooling to room temperature to obtain an aqueous alkali solution;

(2-3) adding an alkaline aqueous solution into the oil phase to carry out saponification reaction to obtain a soap base;

and (2-4) introducing the soap base into a mold, preserving heat, shaping, drying, saponifying and demolding to obtain a second agent.

In some embodiments, after obtaining the aqueous alkaline solution in step (2-2), cutting the frozen milk into pieces of ice, adding to the aqueous alkaline solution, and sufficiently dissolving the milk at a temperature below 0 ℃ to obtain an aqueous alkaline solution containing milk; then adding the alkaline aqueous solution containing milk into the oil phase for saponification reaction to obtain the soap base.

In some embodiments, the plant essential oil is added into the soap base and stirred before the soap base is introduced into the mold for heat preservation and shaping, and then the soap base is introduced into the mold for heat preservation and shaping.

In some embodiments, the natural petals ground into powder are added into the soap base and stirred before the soap base is introduced into the mold for heat preservation and shaping, and then the soap base is introduced into the mold for heat preservation and shaping.

The application method of the hair dye with the toilet soap catalyzing melanin polymerization comprises the following steps:

smearing the first agent on cleaned hair, and staying in the air for 30-40 min;

rubbing and washing the hair for 10-15 min by using a second agent, and washing the hair by using clear water.

Compared with the prior art, the invention has the following characteristics and beneficial effects:

the soap is used as a catalyst to catalyze 5,6-dihydroxyindole to rapidly polymerize to form melanin, so that the coloring is fast and the coloring effect is good; in addition, the hair conditioner is milder and safer, and is beneficial to improving the hair flexibility.

Detailed Description

The technical solution and the technical effect of the present invention will be further explained with reference to the following embodiments. The examples are only for illustrative purposes and are not intended to limit the scope of the present invention. The technical solution of the present invention is further described below with reference to specific examples.

The following examples and comparative examples used the following starting materials: 5,6-dihydroxyindole is a Sichuan melanine high polymer material product, and the purity is 97%; the rest raw materials are all general products.

Example 1

In this example, the first dose component was: 5,6-dihydroxyindole: 1%, C16-18 alcohol: 4%, olive oil: 16%, PEG-7 olive oil: 1%, propylene glycol: 4%, cysteine: 3%, sodium sulfite: 0.1%, ascorbic acid ethyl ether: 0.2%, polydimethylsiloxane: 1%, guar hydroxypropyl trimethyl ammonium chloride: 0.1 percent of ethanolamine, a proper amount of ethanolamine and the balance of water, wherein the mass percent of all the components is 100 percent. The second agent comprises the following components: olive oil: 26%, coconut oil: 26%, sodium hydroxide: 15%, water: 10%, milk: 15%, plant essential oil: 5%, natural petals: 3 percent.

Example 2

In this example, the first dose component was: 5,6-dihydroxyindole: 3%, C16-18 alcohol: 4%, olive oil: 16%, PEG-7 olive oil: 1%, propylene glycol: 4%, cysteine: 3%, sodium sulfite: 0.1%, ascorbic acid ethyl ether: 0.2%, polydimethylsiloxane: 1%, guar hydroxypropyl trimethyl ammonium chloride: 0.1 percent of ethanolamine, a proper amount of ethanolamine and the balance of water, wherein the mass percent of all the components is 100 percent. The second agent comprises the following components: olive oil: 26%, coconut oil: 26%, sodium hydroxide: 15%, water: 10%, milk: 15%, plant essential oil: 5%, natural petals: 3 percent.

Comparative example 1

This comparative example only included a first agent having the composition: 5,6-dihydroxyindole: 1%, C16-18 alcohol: 4%, olive oil: 16%, PEG-7 olive oil: 1%, propylene glycol: 4%, cysteine: 3%, sodium sulfite: 0.1%, ascorbic acid ethyl ether: 0.2%, polydimethylsiloxane: 1%, guar hydroxypropyl trimethyl ammonium chloride: 0.1 percent of ethanolamine, a proper amount of ethanolamine and the balance of water, wherein the mass percent of all the components is 100 percent.

Comparative example 2

The first agent in this comparative example consisted of: 5,6-dihydroxyindole: 3%, C16-18 alcohol: 4%, olive oil: 16%, PEG-7 olive oil: 1%, propylene glycol: 4%, cysteine: 3%, sodium sulfite: 0.1%, ascorbic acid ethyl ether: 0.2%, polydimethylsiloxane: 1%, guar hydroxypropyl trimethyl ammonium chloride: 0.1 percent of ethanolamine, a proper amount of ethanolamine and the balance of water, wherein the mass percent of all the components is 100 percent. The second agent comprises the following components: hydrogen peroxide: 10%, C16-18 alcohol: 4%, olive oil: 16%, PEG-7 olive oil: 1%, propylene glycol: 4 percent of water and the balance of water, wherein the mass percent of all the components is 100 percent.

The compositions of examples 1 to 2 and comparative examples 1 to 2 are shown in Table 1.

The effects of the hair dyes of examples 1 to 2 and comparative examples 1 to 2 were evaluated by: cleaning white hair with L value of 66.2 and chroma of 10 with shampoo, uniformly applying the first preparation on hair, and standing in air for 30min; the hair dye in the comparative example 1 is used, and then the hair is washed and dried; the hair dyes of examples 1-2 and comparative example 2 were further kneaded and washed with a second agent for 15min, and then washed with clean water and dried. And evaluating the hair blackening degree and the flexibility of the hair.

TABLE 1 Components of examples 1-2 and comparative examples 1-2

The evaluation method of the hair dyeing blackness comprises the following steps: and testing for 3 times by using a color difference meter, taking an average value, namely the hair dyeing blackness, and simultaneously referring to a chromaticity board to obtain the chromaticity. The blackness L value of normal black hair is in the range of 16-18, the chroma range is 2-3,L, or the smaller chroma is, the color development is darker.

The evaluation method of hair flexibility comprises the following steps: after drying the dyed hair, the hair was immediately evaluated for suppleness, i.e. suppleness after dyeing. Any hair conditioner on the market is used for nursing the hair dyed, and after the hair dyed is washed and dried by clean water, the hair flexibility is evaluated, namely the hair flexibility after hair care.

Table 2 shows the evaluation of the blackening and flexibility of the hair dyes of examples 1-2 and comparative examples 1-2, and it can be seen from Table 2 that the hair dyes of examples 1-2 have more remarkable dyeing effect and the hair after dyeing is more flexible after simple care. The soap is used for easily catalyzing 5,6-dihydroxyindole pigment molecules to rapidly polymerize and develop color. And the alkalinity generated by the soap hydrolysis brings physical reversible transformation to the hair, and the hair is as good as the original hair after simple care, and shows good flexibility.

TABLE 2 evaluation of Hair blackness and flexibility of Hair dyes

	L value of blackness	Color intensity	Flexibility after dyeing	Post-conditioning compliance
					Example 1	20.1	3	Slightly astringent	Compliant and compliant
Example 2	17.6	2	Slightly astringent	Is compliant
					Comparative example 1	62.1	10	Is compliant	Compliant and compliant
Comparative example 2	27.1	4	Dry and astringent	Dry and astringent

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. The hair dye with the soap catalyzing melanin polymerization is characterized in that:

comprises a first agent and a second agent;

the first agent consists of the following components in percentage by mass:

5,6-dihydroxyindole: 1% -3%, C16-18 alcohol: 4% -8%, olive oil: 12% -16%, PEG-7 olive oil: 0.5% -2%, propylene glycol: 2% -8%, cysteine: 1% -6%, sodium sulfite: 0.1% -0.2%, ascorbic acid ethyl ether: 0.1-0.5%, polydimethylsiloxane: 0.2% -2%, guar gum hydroxypropyl trimethyl ammonium chloride: 0.05 to 0.1 percent of the total weight of the waste water, and a proper amount of ethanolamine which is used for adjusting the pH value to 6 to 7; the balance of water;

the second agent is soap base and consists of the following components in percentage by mass:

olive oil: 20% -30%, coconut oil: 20% -30%, sodium hydroxide: 5-20 percent of water and the balance of water.

2. The hair dye with the soap catalyzing melanin polymerization as claimed in claim 1, wherein:

in the first agent, the mass percent of 5,6-dihydroxyindole is 3%.

3. The method for preparing a hair dye by catalyzing melanin polymerization with a soap according to any one of claims 1 to 2, comprising preparing a first agent and a second agent;

the preparation of the first agent comprises the steps of:

(1-1) mixing C16-18 alcohol and olive oil, and heating to 70-90 ℃ to obtain an oil phase;

(1-2) mixing and heating PEG-7 olive oil, propylene glycol, cysteine, sodium sulfite, ascorbic acid ethyl ether, guar gum hydroxypropyl trimethyl ammonium chloride and water to 70-90 ℃ to obtain a water phase;

(1-3) adding the aqueous phase to the oil phase, stirring, followed by homogenization and cooling to room temperature;

(1-4) adding a proper amount of ethanolamine to adjust the pH value to 6-7;

(1-5) adding polydimethylsiloxane for homogenizing, adding 5,6-dihydroxyindole, and mixing to obtain a first agent;

the preparation of the second agent comprises the steps of:

(2-1) mixing and heating olive oil and coconut oil to 50-80 ℃ to obtain an oil phase;

(2-2) dissolving sodium hydroxide in water and cooling to room temperature to obtain an aqueous alkali solution;

(2-3) adding an alkaline aqueous solution into the oil phase to carry out saponification reaction to obtain a soap base;

and (2-4) introducing the soap base into a mold for heat preservation and shaping, and demolding after drying and saponification to obtain a second agent.

4. A method of using the hair dye of any one of claims 1 to 2, wherein:

smearing the first agent on cleaned hair, and staying in the air for 30-40 min;

rubbing and washing the hair for 10-15 min by using a second agent, and washing the hair by using clear water.