CN110974714A

CN110974714A - Hair dye prepared from graphite-phase carbon nitride and hair dyeing method thereof

Info

Publication number: CN110974714A
Application number: CN201911361460.6A
Authority: CN
Inventors: 高海燕; 陆小豪; 朱正; 姚庭怡; 杨莉; 彭若轩; 刘起辛; 梅文
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-10
Anticipated expiration: 2039-12-26
Also published as: CN110974714B

Abstract

The invention discloses a hair dye prepared from graphite-phase carbon nitride and a hair dyeing method thereof, and belongs to the technical field of hair dyeing. The hair dye comprises graphite phase carbon nitride, a specific surfactant and a high molecular polymer, and is characterized by comprising 0.1-12% of graphite phase carbon nitride, 0.5-5.0% of surfactant and 0.1-5% of high molecular polymer, wherein the pH is adjusted to 3-7, and the balance is water, and the unit is weight percentage. When in hair dyeing, the hair dye is evenly sprayed on the hair, the hair dyeing can be finished after 10-60min at normal temperature, and the expressed graphite phase carbon nitride has good dyeing effect, high fastness, health and no toxicity.

Description

Hair dye prepared from graphite-phase carbon nitride and hair dyeing method thereof

Technical Field

The invention belongs to the technical field of hair dyeing, and particularly relates to a hair dye prepared from graphite-phase carbon nitride and a hair dyeing method thereof.

Background

Since the reform was open, people's standard of living constantly improved, and more people begin to focus on self image, and the hair dye trade obtains rapid development. At present, most hair dyes are oxidation type hair dyes. The oxidation type hair dye comprises a dye intermediate and a coupling agent, wherein an oxidant is matched during dyeing, the dye intermediate and the coupling agent permeate into the hair cortex, oxidation, coupling and condensation reactions are carried out to form larger dye molecules, and the dye molecules are enclosed in hair fibers and are not easy to remove, so that the aim of dyeing hair for a long time is fulfilled. However, the oxidative hair dyes are harmful to human bodies, easily cause allergy, and even induce cancer in severe cases. One reason for this is that oxidative hair dyes generally use p-phenylenediamine or the like as a dye intermediate, which is a carcinogen. Of course, some natural plant hair dyes are available in the market at present, but most of the natural plant hair dyes have low fastness, high price and few selectable colors. It is difficult to meet the market demand. Reduced graphene oxide is used as a color developing substance, matched with a high molecular polymer to be coated on the surface of hair, and the color developing substance is fixed on the surface of the hair to develop color under the action of the high molecular polymer and hair keratin. According to the method, the graphene is coated on the surface layer of the hair, the graphene is a macromolecular substance and cannot permeate into the scalp to cause harm to a human body, but the graphene is a macromolecule, so that the phenomenon of non-uniformity of hair dyeing is caused, and the dyed hair has a single color.

Disclosure of Invention

The technical problem is as follows: the invention aims to solve the technical problems of uneven coloring and single dyeing color of graphite macromolecules on hair and realize the aims of uniform dyeing and required dyeing color depth of graphite substances on hair.

The technical scheme is as follows:

the graphite-phase carbon nitride contains abundant nitrogen atoms, is easier to combine with hair compared with graphene, and has better fastness. However, the color of the carbon nitride on the hair is not deep enough, so that N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride p-phenylenediamine capable of developing color on the hair is added, the color is superposed into the required color, and meanwhile, the dimethyltetradecyl dichloride has the property of a gemini surfactant, so that the carbon nitride can be more uniformly distributed on the hair, and more natural and uniform color can be obtained.

The invention aims to provide a hair dye, which comprises the following components: dye, surfactant, high molecular polymer and pH regulator; the surfactant is a compound N, N' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium p-phenylenediamine chloride) shown in a formula (I);

in one embodiment of the invention, the components of the hair dye comprise, by weight, 0.1-12 parts of graphite-phase carbon nitride, 0.5-5.0 parts of surfactant, 0.1-5 parts of high molecular polymer, 0.1-1.0 part of pH regulator and 100 parts of water; wherein the structure of the surfactant is shown as the formula (I).

In one embodiment of the present invention, the pH of the hair dye is 3 to 10.

In one embodiment of the present invention, graphite phase carbon nitride is used as a color developing substance, N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium p-phenylenediamine chloride is used as a color assistant and a leveling agent, and the color developing agent and the leveling agent are mixed with a high molecular polymer and then the hair is colored in a coating mode.

In one embodiment of the present invention, the method for preparing the hair dye comprises: 0.1-5.0 wt% of water solution of high molecular polymer is used as solvent, 0.5-5.0 wt% of N, N' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride p-phenylenediamine and 0.1-12 wt% of graphite phase carbon nitride are added, pH is adjusted to 3-10, and 0.1-12.0% of graphite phase carbon nitride-high molecular polymer solution is prepared, thus obtaining the hair dye.

In one embodiment of the present invention, the mass concentration of N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride) p-phenylenediamine is preferably 3% to 5% by weight.

In one embodiment of the present invention, the method of using the hair dye includes: uniformly coating the hair dye on hair at normal temperature for coloring, and dyeing for 10-60 min.

In one embodiment of the present invention, the high molecular polymer includes one or more of cellulose, starch, chitosan, cyclodextrin and sodium alginate.

In one embodiment of the present invention, the pH adjusting agent comprises one or more of phosphoric acid, acetic acid, lactic acid, tartaric acid, citric acid, ascorbic acid, sodium hydroxide, and sodium bicarbonate.

In one embodiment of the present invention, the hair dye is composed of the following components:

the invention has the beneficial effects that:

the invention utilizes the surfactant N, N ' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium p-phenylenediamine chloride which is black per se to be matched with carbon nitride, the colors of the two are superposed to form the required black, and simultaneously, the (dimethyltetradecyl) dichloride has the property of a gemini surfactant, so that the carbon nitride can be more uniformly distributed on hair to obtain more natural and uniform color, because the N, N ' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium p-phenylenediamine chloride uniformly disperses the carbon nitride in microemulsion, after the carbon nitride is uniformly distributed on the hair, the N, N ' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium p-phenylenediamine chloride after emulsion breaking and the carbon nitride are adsorbed on the surface of the hair, but also interact with each other, thereby increasing the adsorption quantity of each on the hair surface, and increasing the color depth of the dyed hair. Only white hair can be dyed pale yellow using carbon nitride alone. The addition of N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride can dye white hair to a tan color.

Compared with the traditional black hair dye, the hair dye disclosed by the invention does not contain aniline dyes, is green and environment-friendly, and has very good health safety.

Detailed Description

The present invention will be further described with reference to the following examples.

N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride) can be prepared by the method described in the literature (synthesis and performance of gemini surfactants using p-phenylenediamine as a linking group, chemical industry for daily use, 2019, 49(5), 293-wall 297).

Fastness comparison test: the colored hair was soaked and sealed in a 50mL centrifuge tube (40mL of 5% volume shampoo). The tube was then fixed horizontally on a vortex mixer and shaken vigorously for 5 minutes. By calculating the movement of the tube from the recorded video, the frequency is determined to be about 10-12 Hz. Washed 10 times, after which the hair was rinsed with water and dried in air or at 60 ℃. And their color difference Δ E from the hair before washing was measured.

Example 1: brown black hair dye

Preparing a hair dye: dissolving graphite-phase carbon nitride 1g in 100ml of water solution, adding ascorbic acid 3g to reduce the substance, adding chitosan 1g and N, N' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride p-phenylenediamine 5g, and performing ultrasonic dispersion to obtain the hair dye.

Dyeing the hair: the white human hair sample was first thoroughly rinsed with water to remove any existing surface coating. The prepared dye solution was applied to the hair and combed to give a visually uniform coating with a dyeing time of 30 minutes, then washed with clear water and dried in the air or with a commercial hair dryer.

The dyed hair color is brown black, L is 21.50, a is 1.82, and b is 0.67. The L value was much decreased, indicating that the color depth was remarkably increased, and it can be seen that the black hair dye of this example had a very excellent blackening effect. After 7 shampooings of the dyed hair, L is 36.31, a is 3.67, b is 3.98 and the color difference Δ E is 15.29, indicating better colorfastness.

Example 2: brown black hair dye

Preparing a hair dye: adding 0.1g of graphite-phase carbon nitride into 100ml of aqueous solution for dissolving, adding 2g of citric acid for reducing the substance, adding 2g of cyclodextrin and 0.1g of N, N' -bis (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride-p-phenylenediamine, and performing ultrasonic dispersion to obtain the hair dye.

The dyed hair color is brown black, L is 32.87, a is 6.54, and b is 7.76. After 7 shampooings of the dyed hair, L48.32, a 6.05, b 9.14 and a color difference Δ E of 15.52 indicated a certain color fastness.

Example 3: effect of surfactants on Hair dyes

Referring to example 1, the respective surfactants were replaced with the conditions shown in table 1, and the other conditions were not changed, to prepare the corresponding brown-black hair dye.

The obtained hair dye was extruded into a foam, uniformly applied to white hair, and after 30min, the hair was washed clean, and the results are shown in table 1.

TABLE 1 Effect of surfactants on the dyeing effect of Black Hair dyes

Surface active agent	Dyeing hair color after 30min	L,a,b
			Example 1	Uniform brown-black color	L＝21.5,a＝1.82,b＝0.67
Without adding	Non-homogeneous light yellow	L＝38.64,a＝5.25,b＝7.40
			Sodium dodecyl sulfate	Relatively uniform light yellow	L＝42.76,a＝5.33,b＝8.29

EXAMPLE 4 optimization of the distribution ratio of Hair dye Components

Referring to example 1, the amount of the surfactant was changed to 0.3g, 0.5g, 5g, and 6g, respectively, and the other conditions were not changed, to obtain corresponding hair dyes.

The obtained hair dye was extruded into a foam, uniformly applied to white hair, and after 30min, the hair was washed clean, and the results are shown in table 2.

TABLE 2 Effect of different surfactant amounts on hair dyes

Comparative example 1

Referring to example 1, a hair dye was prepared without adding graphite-phase carbon nitride and without changing other conditions.

Adding 5g N, N' -di (dimethyltetradecyl (2-hydroxy-1, 3-propylidene) ammonium chloride p-phenylenediamine into 100ml of deionized water for dissolving, adding 1g of chitosan, adding 3g of ascorbic acid, and performing ultrasonic dispersion to obtain the hair dye.

The white human hair sample was first thoroughly rinsed with water to remove any existing surface coating. The prepared dye solution was sprayed onto the hair and combed to give a visually homogeneous coating, dyeing time 30 minutes, then washed with clear water and dried in the air or with a commercial hair dryer. The color of the dyed hair is light brown, L is 35.64, a is 5.25, and b is 7.47.

Claims

1. A brown black hair dye is characterized in that the components of the hair dye comprise, by weight, 0.1-12 parts of graphite-phase carbon nitride, 0.5-5.0 parts of surfactant, 0.1-5 parts of high molecular polymer, 0.1-1.0 part of pH regulator and 100 parts of water; wherein the structure of the surfactant is shown as a formula (I),

2. the hair colorant of claim 1, wherein the hair colorant has a pH of 3-10.

3. The hair dye of claim 1 or 2, wherein the pH regulator comprises one or more of phosphoric acid, acetic acid, lactic acid, tartaric acid, citric acid, ascorbic acid, sodium hydroxide and sodium bicarbonate.

4. The hair dye according to claim 1 or 2, wherein the mass fraction of the surfactant with respect to water is 3% to 5%.

5. The hair dye of any one of claims 1-3, wherein the high molecular polymer comprises one or more of cellulose, starch, chitosan, cyclodextrin and sodium alginate.

6. The hair dye of claim 4, wherein the high molecular polymer comprises one or more of cellulose, starch, chitosan, cyclodextrin and sodium alginate.

7. The hair dye according to any one of claims 1 to 3, which is used in a method comprising: uniformly coating the hair dye on hair at normal temperature for coloring, and dyeing for 10-60 min.

8. The hair dye of claim 4, wherein the method of using the hair dye comprises: uniformly coating the hair dye on hair at normal temperature for coloring, and dyeing for 10-60 min.

9. The hair dye according to any one of claims 1 to 8, wherein the preparation method of the hair dye comprises: 0.1-5.0 wt% of high molecular polymer aqueous solution is used as a solvent, 0.1-10.0 wt% of surfactant and 0.1-5 wt% of graphite phase carbon nitride are added, and the pH value is adjusted to 3-10, so that the hair dye is obtained.

10. A brown black hair dye is characterized in that graphite-phase carbon nitride is used as a color developing substance, N, N '-bis (dimethyltetradecyl chloride (2-hydroxy-1, 3-propylidene) ammonium-p-phenylenediamine is used as a color assistant and a leveling agent, wherein the structural formula of the N, N' -bis (dimethyltetradecyl chloride (2-hydroxy-1, 3-propylidene) ammonium-p-phenylenediamine is as follows: