KR20220050324A - Method for dyeing hair using mixture of polymer having amine group and natural dye - Google Patents

Abstract

The present invention relates to a hair dyeing method using a mixture of a polymer having an amine group and a natural dye. The hair dyeing method of the present invention can reduce side effects, and improve dyeability, so that it is possible to minimize side effects and irritation caused by chemical components added to conventional hair dyes.

Description

Method for dyeing hair using mixture of polymer having amine group and natural dye

The present invention relates to a method for dyeing hair using a mixture of a polymer having an amine group and a natural dye.

Human hair has different colors and shapes according to race, and is generally dyed in various colors for the purpose of beauty. Hair dyeing is moving in the direction of pursuing a variety of colors from a black-brown one-way trend according to the flow of the times that value individuality. In the case of conventional hair dyeing, temporary dyeing with tar dye as a main component and semi-permanent dyeing with oxidation dye as a main component have been used, and both methods use a chemically synthesized hair dye as a main component. These synthetic hair dyes contain potential harmful factors that cause cancers such as leukemia, bladder cancer, uterine cancer and breast cancer when frequently used together with hair damage, rash and contact skin reactions, and visual impairment. Therefore, there has been a demand for the development of natural hair dyes that are harmless to the human body and eco-friendly, and currently, henna (red series) has been widely used as a representative natural hair dye. In addition, ink (black series), walnut (brown series), indigo (indigo series) ), chamomile (yellow series), etc. are being used. The limitations of using natural dyes in hair dyeing are lower solubility in organic solvents compared to synthetic dyes, problems in reproducibility and standardization, instability of raw material supply, and high raw material cost.

On the other hand, Korea Patent No. 0616724 discloses a 'hair dye composition containing PG chitosan', which is a chitosan derivative bonded with polypropylene glycol, and Korean Patent Publication No. 2011-0089686 discloses 'Nanosilver-containing chitosan and cotton blend knitted fabric'. Although the 'natural dyeing method and natural dyeing knitted fabric' is disclosed, there is no description of a hair dyeing method using a mixture of a polymer having an amine group and a natural dye of the present invention.

The present invention has been derived from the above requirements, and the present inventors simultaneously treat hair with a mixture of chitosan or amodimethicone, which is a polymer material having an amine group, with a natural dye, and heat bath method It was confirmed that the hair dyeing effect is the best when dyed with heat treatment. By confirming that the dyeing effect of the treated and heat-dyed hair is more excellent, the present invention has been completed.

In order to solve the above problems, the present invention provides a hair dyeing method comprising the step of dyeing the hair treated with a mixture of a polymer material having an amine group and a dye at 45 ~ 95 ℃.

In addition, the present invention provides a hair dye composition comprising a mixture of a polymer material having an amine group and a dye as an active ingredient.

In the hair dyeing method according to the present invention, the dyeing effect such as color development, dyeing, and fastness can be enhanced when dyeing using natural dyes by simultaneously treating a polymer material having an amine group on the hair and a natural dye, and side effects caused by existing chemical hair dyes It can eliminate hair loss and prevent hair damage caused by dyeing.

1 is a photograph of hair dyed by treating only natural dye (red) or a mixture of chitosan or amodimethicone and natural dye, followed by heat bathing at room temperature (25° C.).
2 is a photograph of hair dyed by treating the hair with a mixture of chitosan and natural dyes (red, A; yellow, B; green, C) and heat bathing at 50°C or 90°C.
3 is a photograph of hair dyed by treating hair with a mixture of amodimethicone and natural dyes (red, A; yellow, B; green, C) and heat bathing at 50°C or 90°C.
Figure 4 is the hair dyed by heat bathing at 90 ℃ after treatment with a mixture of chitosan and natural dye (red) at the same time; hair dyed by pre-treating pure chitosan aqueous solution without dye and heat bathing at 90°C, then treating red dye aqueous solution and heat bathing at 90°C; It is a photograph of; hair dyed by pretreatment with natural dye, heat bathing at 90°C, treatment with aqueous chitosan solution, and heat bathing at 90°C.
Figure 5 shows hair dyed by heat bathing at 90°C after simultaneous treatment with a mixture of amodimethicone and natural dye (red); hair dyed by pre-treating an aqueous amodimethicone solution without dye and heat bathing at 90° C., then treating the red dye aqueous solution and heat bathing at 90° C.; It is a photograph of; hair dyed by pretreatment with natural dye, heat bathing at 90°C, treatment with amodimethicone aqueous solution, and heat bathing at 90°C.

In order to achieve the object of the present invention, the present invention provides a hair dyeing method comprising the step of dyeing the hair treated with a mixture of a polymer material having an amine group and a dye at 45 ~ 95 ℃.

In the method according to an embodiment of the present invention, the polymer material having an amine group may be chitosan or amodimethicone, but is not limited thereto. The chitosan is a natural polysaccharide in which an acetyl group is removed from an acetamide group of chitin, and has an amine group (-NH ₂ ). In addition, the amodimethicone is an amino-modified silicone in which an amine group is bonded to a silicone structure.

In the method according to an embodiment of the present invention, the mixture of the polymer material and the dye having an amine group may be a mixture of the polymer material and the dye in a weight ratio of 0.5 to 1.5:2 to 3.5, preferably chitosan and The dye may be mixed in a weight ratio of about 1:2.7, or amodimethicone and a dye may be mixed in a weight ratio of 1:3, but is not limited thereto, and the dye may be a dye derived from a natural product.

In addition, in the method according to an embodiment of the present invention, the hair treated with the mixture of the polymer material and the dye having an amine group may be dyed by bathing at 45 to 95° C., preferably a mixture of chitosan and a dye The treated hair may be dyed by bathing at 90° C., or may be dyeing hair treated with a mixture of amodimethicone and a dye by bathing at 50° C. or 90° C., but is not limited thereto.

The method of dyeing the hair of the present invention is a method of pre-treating a polymer material having an amine group in the hair and then treating the dye to dye it at 50°C or 90°C, or pretreating the hair with a dye and then treating the polymer material having an amine group Therefore, the dyeing effect is excellent compared to the method of dyeing at 50°C or 90°C. In addition, the dyeing effect is more excellent when dyeing at 50°C or 90°C than dyeing the hair treated with a mixture of a polymer material having an amine group and a dye at room temperature.

The present invention provides a hair dye composition comprising a mixture of a polymer material having an amine group and a dye as an active ingredient.

In the composition for hair dye of the present invention, the polymer material having an amine group may be chitosan or amodimethicone, but is not limited thereto.

The hair dye composition of the present invention may be prepared by mixing a polymer material having an amine group and a dye in a weight ratio of 0.5 to 1.5:2 to 3.5, preferably mixing chitosan and a dye in a weight ratio of about 1:2.7 or , amodimethicone and a dye may be mixed in a weight ratio of 1:3, but the present invention is not limited thereto, and the dye may be a dye derived from a natural product.

The composition for hair dye of the present invention further comprises a hair protectant, a chelating agent, a surfactant, a pH adjuster, an alkali agent, a moisturizer, a thickener, a preservative, an antioxidant, a bactericide, an anti-inflammatory agent, an antimicrobial agent, a solvent, a flavoring agent, and a pigment. It may contain one or more components selected from, but is not limited thereto.

The composition for hair dye of the present invention may be prepared in a cream type, liquid type, powder type, jelly type or aerosol type, but is not limited thereto.

In addition, the composition for hair dye of the present invention includes hair tint, eyebrow, tattoo formulation, hair nourishing lotion, hair treatment, hair shampoo, hair conditioner, hair cream, hair wax, hair aerosol, hair pack, hair soap, hair dye, It may be prepared in one formulation selected from the group consisting of a wave agent for hair, hair essence and hair conditioner, but is not limited thereto.

Hereinafter, an embodiment of the present invention will be described in detail. However, the following examples only illustrate the present invention, and the content of the present invention is not limited to the following examples.

Materials and Methods

1. Preparation of hair dye and dyeing of hair

Put 40 ml of distilled water and 110 mg of chitosan (SIGMA-ALDRICH, CAS No. 9012-76-4) in a 200 ml beaker, and add 2 ml of diluted acetic acid or ascorbic acid to completely dissolve the chitosan. 300 mg of natural dye (red color, gardenia yellow, gardenia green; purchased from Miryang agar) was added and completely dissolved. In addition, 40 ml of distilled water and 0.1 ml of amodimethicone (Cosnet, CAS No. SI6020Z) were put in a 200 ml beaker, and then 300 mg of natural dyes (red color, gardenia yellow, gardenia green) were added and completely dissolved. For the preparation of the control sample, only the dye and distilled water were respectively dissolved and used. Cut the hair for the experiment to about 0.4 cm, immerse it in each solution, put it on a hot plate at room temperature or on a hot plate, and heat it for 1 hour, then take the hair out and wash it with tap water. washed off The SDS treatment process was repeated 3 times and completely dried with a hair dryer.

In order to investigate the change of color according to the heat treatment temperature, after preparing the hair dye through the process described above, heat bath treatment was performed at 25 ° C (room temperature), 50 ° C., or 90 ° C. for 1 hour, respectively. After the heat bath, the hair was taken out and the same procedure as described above was performed.

2. Measurement of L,a,b values using a colorimeter

After the dyed hair is completely dried, the color values such as L (brightness), a (degree of red and green) and b (degree of yellow and blue) are measured 3 times using a colorimeter. After repeated measurements, the average and standard deviation were calculated to compare the dyeing power, and the ΔE value, which is the color difference, was calculated and displayed.

ΔE={(100-L) ² +(a) ² +(b) ² } ^0.5

Example 1. Evaluation of hair dyeability according to heat treatment temperature

As a result of dyeing only dye-treated hair and hair treated with a mixture of chitosan or amodimethicone and red natural dye in a hot bath at room temperature (25℃), chitosan or amodimethicone and a mixture of dye were treated. Although the hair was dyed darker than the dye-only-treated hair, the dye was not dyed so deeply that the dye was colored on the hair (FIG. 1).

Next, as a result of treating the hair with a mixture of chitosan and natural dyes (red, yellow, or green) and dyeing it in a hot bath at 50°C or 90°C, compared to hair dyed at 50°C, hair dyed at 90°C As the coloring power of the dye was increased, it was confirmed that the dyeing effect was more excellent (FIG. 2). The L, a and b values of each sample were measured three times using a colorimeter, and the color difference (ΔE) value was calculated based on this result. As shown in the average values in Table 1 below, Compared to that, it was confirmed that the ΔE value was higher in the heat treatment group at 50 °C or 90 °C, and in particular, the ΔE value was the highest at 90 °C.

In addition, as a result of treating hair with a mixture of amodimethicone and natural dyes (red, yellow, or green) and dyeing it in a heat bath at 50°C or 90°C, the coloring power of the dye for hair dyed at 50°C or 90°C It was confirmed that this was at a similar level (FIG. 3). The L, a, and b values of each sample were measured three times using a colorimeter, and the color difference (ΔE) value was calculated based on this result. As a result, as shown in the average value in Table 2 below, Compared to that, it was confirmed that the ΔE value was higher in the heat treatment group at 50 °C or 90 °C, and the ΔE value in the 50 °C and 90 °C heat treatment groups was at a similar level.

Example 2. Evaluation of hair dyeability according to the treatment sequence of chitosan and dye

hair dyed by immersing the hair in a mixture of chitosan and dye and bathing at 90° C. for 1 hour; hair dyed by immersing the hair in a pure chitosan aqueous solution that does not contain dyes, heat bathing at 90° C. for 1 hour, taking out the hair, immersing it again in an aqueous red dye solution, and heat bathing for 1 hour; After immersing the hair in a red dye aqueous solution and heat bathing at 90°C for 1 hour, take out the hair, immerse it again in a pure chitosan aqueous solution, and heat the dyed hair in a heat bath for 1 hour; wash the hair with tap water, remove moisture with a tissue, and visually observe As a result, it was confirmed that, when the mixture of chitosan and dye was treated and chitosan and dye were simultaneously treated, the coloring power of the dye for hair was increased, and thus the dyeing effect was the best (FIG. 4).

In addition, as a result of measuring the color difference (ΔE) value using a colorimeter for the hairs, it was confirmed that the ΔE value was higher when the chitosan was pretreated and the dye was treated than that of the chitosan after the dye pretreatment. And it was confirmed that the ΔE value was the highest when the dye was simultaneously treated (Table 3).

Measurement results of ΔE values of samples measured using a colorimeter Simultaneous treatment of chitosan and dye Chitosan → dye treatment dye → chitosan treatment One 84.637 56.399 27.539 2 87.004 60.531 20.6 3 85.552 55.353 21.435 medium 85.731 57.428 23.191

Example 3. Evaluation of hair dyeability according to the treatment sequence of amodimethicone and dye

hair dyed by immersing the hair in a mixture of amodimethicone and a dye and heat bathing at 90° C. for 1 hour; hair dyed by immersing hair in an aqueous amodimethicone solution containing no dye, heat bathing at 90° C. for 1 hour, taking out the hair, immersing it again in an aqueous red dye solution, and heat bathing for 1 hour; After immersing hair in red dye aqueous solution and heat bathing at 90°C for 1 hour, take out the hair and immerse it in amodimethicone aqueous solution again. When amodimethicone and a dye were simultaneously treated by treating a mixture of modimethicone and dye, it was confirmed that the coloring power of the dye for hair was increased, and thus the dyeing effect was the best (FIG. 5).

In addition, as a result of measuring the color difference (ΔE) value using a colorimeter for the hairs, the ΔE value was higher when amodimethicone was pretreated and dye was treated than amodimethicone was treated after dye pretreatment. was confirmed, and in particular, when amodimethicone and dye were simultaneously treated, it was confirmed that the ΔE value was the highest (Table 4).

Measurement results of ΔE values of samples measured using a colorimeter Simultaneous treatment with amodimethicone and dye amodimethicone → dye treatment Dye → treatment with amodimethicone One 80.55386 69.3274 37.38851 2 84.15872 70.33061 35.27573 3 79.15687 64.4912 35.95543 medium 81.28982 68.04974 36.20656

In summary, the method of treating the hair with a mixture of chitosan or amodimethicone and a natural dye (simultaneous treatment of chitosan and natural dye) and dyeing the hair by heat bathing at 50 °C or 90 °C is the method of dyeing the hair. It was found that this was the most optimal way to increase it.

Claims (7)

A method of dyeing hair comprising the step of dyeing the hair treated with a mixture of a polymer material having an amine group and a dye in a bath at 45 to 95°C. The method of claim 1, wherein the polymer material having an amine group is chitosan or amodimethicone. The method of claim 1, wherein the dye is a dye derived from a natural product. A composition for hair dye comprising a mixture of a polymer material having an amine group and a dye as an active ingredient. The composition for hair dye according to claim 4, wherein the polymer material having an amine group is chitosan or amodimethicone. The composition for hair dye according to claim 4, wherein the dye is a dye derived from a natural product. According to claim 4, wherein the composition for hair dye is hair tint, eyebrow, tattoo formulation, hair nutrition lotion, hair treatment, hair shampoo, hair conditioner, hair cream, hair wax, hair aerosol, hair pack, hair soap, hair A composition for hair dye, characterized in that it is prepared in one formulation selected from the group consisting of a dye, a wave agent for hair, a hair essence and a hair conditioner.

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