KR20060122621A - Henna-containing compositions for dyeing or bleaching hair - Google Patents

Abstract

A novel hair coloring or bleaching composition comprising henna is provided to maintain easiness of dyeing and diversity of color, and significantly improve problems such as damage of hair and scalp and generation of irritative smell. The composition consisting of a conventional synthetic hair bleaching agent and henna is characterized in that 10-50 parts by weight of the henna is added to 100 parts by weight of the synthetic hair bleaching agent. The conventional synthetic hair bleaching agent is a double-action or a triple-action hair bleaching agent. The henna is powder and consists of fine particles having a particle size of more than 150 meshes.

Description

HENNA-CONTAINING COMPOSITIONS FOR DYEING OR BLEACHING HAIR}

Figure 1a is a photograph of the scalp site of the subject after decolorization using a conventional synthetic bleaching agent, Figure 1b is a photograph of the scalp site of the subject after decolorization using the decoloring composition of the present invention.

FIG. 2A is a photograph of the scalp region of the subject of FIG. 1A after 1 day has been decolorized, and FIG. 2B is a photograph of the scalp region of FIG. 1B from 1 day after the bleaching. to be.

Figure 3a is a photograph of the scalp site of the subject at 1 day after staining using a conventional synthetic dye, Figure 3b is a scalp of the subject at 1 day after staining using the dyeing composition of the present invention A picture taken of the site.

FIELD OF THE INVENTION The present invention relates to hair dyeing or bleaching compositions, and in particular to dyeing and bleaching compositions comprising natural henna.

Dyestuffs for hair bleaching and dyeing include vegetable dyes, metallic dyes and synthetic dyes. Among these, metallic dyes are rarely used at present because the dye does not come out after dyeing and hair damage is large.

In general, synthetic dyes are most commonly used, and are divided into two main agents, oxidants such as oxidizing dyes and alkalis and oxidizing agents such as hydrogen peroxide, and mixed with the first and second agents immediately before the procedure. At this time, peroxides may be added together to enhance hair decolorization. When an alkaline agent such as ammonia water contained in the first agent swells and softens the hair and promotes decomposition of hydrogen peroxide contained in the second agent, oxygen of the generator is generated, which decomposes the melanin pigment and simultaneously It will develop the oxidation dye contained. However, when such synthetic dyes are used, people with weak skin are prone to side effects such as inflammation of the scalp, hair damage, and irritating odor during the procedure, which causes the operator and the subject to suffer. This happens.

For this reason, in recent years, there has been a growing interest in safe vegetable dyes. Henna (her name Botanical Lawsonia inermis) is one of the most popular vegetable dyes, and it has been used as a cosmetic or dyeing agent for thousands of years since ancient times in Egypt, the Middle East, Africa and India. It contains antibiotics and has been used as a medicine to prevent headaches, burns, inflammation, ulcers, fever, and cracked nails.

Henna as a hair dye has been handed down to Europe and has been used for hair dyeing and treatment since 1890. In the hair dyeing method using henna, the henna leaf powder is immersed in water for a predetermined time, and then applied to the hair to be dyed. The white hair is colored in orange color, and the above-described process can be repeated several times to red wine color. . Henna's stainability is more persistent than semipermanent hair dyes, and has been shown to have hair loss and anti-inflammatory effects.

However, even with these advantages, dyeing using henna has a disadvantage in that it is difficult to generalize due to the monotony of dyed colors and the hassle of dyeing which has to go through several dyeing processes.

Therefore, it will be said that the development of a new dyeing composition that solves the disadvantages of the human body, which is a disadvantage of the synthetic dyes, and at the same time has the ease of dyeing and the variety of colors.

The present invention is to improve the shortcomings of the conventional synthetic dyes and vegetable dyes using henna as described above, while maintaining the ease of dyeing and color diversity, while significantly improving problems such as scalp and hair damage and the occurrence of irritating odors It is an object to provide one novel dyeing composition.

The inventors of the present application have conducted extensive experiments to achieve this purpose, and surprisingly found that the object of the present invention can be achieved by using a mixture of synthetic bleaching or coloring agents and henna, which is a natural vegetable material, in a proportion.

The hair dyeing and decolorizing composition of the present invention comprises 10 to 50 parts by weight, more preferably 20 to 40 parts by weight, based on 100 parts by weight of a synthetic bleaching agent or dye used in the cosmetic industry.

Typically, as a synthetic hair bleaching or dyeing agent containing ammonia used in the cosmetic industry, two formulas are generally used, but in addition, there are one and three formulas.

The two-component decoloring or dyeing composition is composed of a first agent containing a dye as a main component alone or a second agent containing an oxidizing agent such as hydrogen peroxide as a main component in addition to an alkaline agent alone or an alkaline agent. The procedure is to bleach or dye the hair.

One-component dyes contain only alkalis and dyes and are dyed by natural oxidation in the air without the use of oxidants.

The three-component decoloring and dyeing composition is formed by adding a powder such as persulfate (oxidizing agent) or carbonate (alkali agent) in addition to the two formulas, and includes an alkaline agent alone or an agent containing an alkali agent and a dye and a persulfate agent. Mixing immediately before the procedure is to be bleached or dyed.

According to the present invention, the advantageous effect of the present invention can be achieved irrespective of the manner of use of the conventional synthetic discoloration or dyeing composition. That is, when the dyeing and decolorization using the composition prepared by adding 10 to 50 parts by weight of the henna component to 100 parts by weight of the conventional one-, two- or three-component decolorants or dyes, scalp damage is significantly reduced. In addition, the occurrence of irritating odor is suppressed, and since a synthetic dye is used, dyeing of desired various colors is possible.

The present inventors speculate that henna, a natural ingredient, is added to conventional synthetic bleaching agents and dyes to reduce the scalp irritation activity of the synthetic ingredients, and at the same time, the henna burn and inflammation treatment effects as described above are exerted to significantly reduce scalp damage. In addition, it is thought that the above-mentioned irritant odor inhibiting effect is generated by adsorbing a component causing an irritating odor to the added henna component.

In the composition of the present invention, as described above, henna is preferably added in an amount of 10 to 50 parts by weight based on 100 parts by weight of a conventional synthetic bleach or dye. When the amount of henna is added in less than 10 parts by weight in the composition of the present invention, the effect of reducing the damage to the scalp and inhibiting the odor is significantly reduced. In particular, it is advantageous to achieve the effect of the present invention that the amount of henna added is 20 to 40 parts by weight.

In the present invention, henna may be added to the composition in powder form or in a liquid phase in water. When added directly to the bleaching and dyeing composition in powder form, the particle size of the henna powder is preferably at least 150 mesh or more. If henna powder is larger than 150 mesh, it is not preferable in terms of efficiency of discoloration and dyeing because it is difficult to achieve homogeneous mixing when mixed in the dyeing composition. Therefore, the finer the henna particle size, the more favorable the effect is achieved. For the same reason, the particle size of the initial henna powder is preferably as fine as possible even when henna is added to the liquid phase in water.

When using the hair decoloring and dyeing composition of the present invention containing the henna, it can be used according to the conventional method of using a synthetic dye and a bleaching agent. That is, in the case of the two- or three-component formulation, henna may be used by mixing together in an instant when the dyeing and discoloring components are mixed.

Hereinafter, the present invention will be described in more detail with reference to Examples. The following examples are intended to illustrate the invention and are not intended to limit the scope of the invention thereby.

Example

In the embodiment of the present invention was tested for the effect of reducing the damage to the scalp and irritating odor after decolorization or dyeing using a bleaching or dyeing composition containing henna.

Example 1

In Example 1, decolorization was carried out using the composition according to the present invention and compared with the case of using a conventional synthetic decolorizer.

The component ratios of the compositions according to the invention and the conventional synthetic bleaching agents in bleaching are summarized in Table 1 below.

ingredient Conventional synthetic bleach Decolorant Composition of the Invention Alkaline (first agent) 60 g 60 g Oxidizing agent (second agent) 60 g 60 g Henna powder (350 mesh or more) - 30 g

The decolorizing composition of the present invention and the conventional synthetic depigmentation agent made by mixing the above components on the spot are applied to each site by dividing the hair of the subject in half at the same time and left for about 30 minutes and then rinsed three times. After the next scalp and hair magnifier (CCL 205 device of Thumbtec Co., Ltd.) was observed and photographed to confirm the results.

Figure 1a is a photograph of the head of the subject after decolorization using a conventional synthetic bleaching agent, Figure 1b is a photograph of the head of the subject after decolorization using the decoloring composition of the present invention.

As can be seen in Figure 1a, in the case of using a conventional synthetic bleaching agent it can be seen that after three times the bleaching of the subject's scalp a little red color occurred. Actually, the practitioner also said that the scalp felt slightly after bleaching. However, in FIG. 1B, the scalp of the subject did not become red at all, and the operator did not feel any tingling at all.

One day after three times of decolorization, the scalp of the subject was observed again and photographed to confirm the result.

FIG. 2A is a photograph of the scalp region of the subject of FIG. 1A after 1 day has been decolorized, and FIG. 2B is a photograph of the scalp region of FIG. 1B from 1 day after the bleaching. to be.

Figure 2a shows that a part of the ooze occurred on the scalp of the subject when one day after the bleaching. However, FIG. 2A shows that the scalp of the subject was not damaged even after 1 day after bleaching.

When using a conventional synthetic bleaching composition when using the above-described components, irritating odor occurs, both the operator and the subject felt the discomfort caused by it, but when using the composition of the present invention almost irritating odor does not occur pleasant feeling It was possible to discolor.

Example 2

In Example 2, staining (blue) was carried out using the composition according to the present invention, and the effect of reducing scalp damage of the present invention was tested as compared with the case of using a conventional synthetic dye.

The ratio of the components of the composition according to the invention and the conventional synthetic dyes for dyeing are summarized in Table 1 below.

ingredient Conventional Synthetic Dye Dyeing composition of the present invention Oxidizing agent (second agent) 60 g 60 g Hair dye (first agent) 60 g 60 g Henna powder (350 mesh or more) - 30 g

Each composition of the above ingredients were mixed immediately and applied to each scalp site of the subject simultaneously as in Example 1, left for about 30 minutes and then rinsed three times. .

Figure 3a is a photograph of the scalp site of the subject at 1 day after staining using a conventional synthetic dye, Figure 3b is a scalp of the subject at 1 day after staining using the dyeing composition of the present invention A picture taken of the site.

Figure 3a shows that a part of the ooze occurred on the scalp of the subject after 1 day after staining. However, Figure 3a shows that the scalp of the subject was not damaged even after 1 day after staining.

In the case of using the composition of the present invention at the time of dyeing, almost no irritant odor occurred, but in the case of using a conventional dyeing composition, an irritating odor occurred.

As described above, according to the present invention, while maintaining the advantages of the conventional synthetic bleaching or dyeing agent that can produce a variety of hair colors, at the same time a decoloring or dyeing composition that can significantly reduce the occurrence of scalp damage and irritating odor that is a disadvantage of the conventional synthetic dyeing agent It is possible to provide.

Claims (8)

A composition made by adding henna to a conventional synthetic bleaching agent, wherein the henna is added in an amount of 10 to 50 parts by weight based on 100 parts by weight of the synthetic bleaching agent. The composition of claim 1, wherein the conventional synthetic bleaching agent is a two- or three-component bleaching agent. The composition of claim 1, wherein the henna is added in an amount of 20 to 40 parts by weight based on 100 parts by weight of the synthetic bleaching agent. The composition according to any one of claims 1 to 3, wherein the henna is made of fine particles in powder form and having a particle size of 150 mesh or more. A composition made by adding a henna to a conventional synthetic dye, wherein the henna is added to 10 to 50 parts by weight based on 100 parts by weight of the synthetic bleaching agent. The composition of claim 5, wherein the conventional synthetic dye is a one-, two- or three-component bleaching agent. The composition of claim 5, wherein the henna is added in an amount of 20 to 40 parts by weight based on 100 parts by weight of the synthetic dye. 8. The composition according to any one of claims 5 to 7, wherein the henna is powdery and consists of fine particles having a particle size of 150 mesh or more.

Images