KR20130033291A - Hair-dying method, a set of hairdye for the method, and treatment agent for hair - Google Patents

Abstract

PURPOSE: A hair dyeing method, a hair dyeing set, and a hair treatment are provided to improve safety using a HC dye. CONSTITUTION: A hair dyeing method comprises: a step of applying a base color dye liquid on hair for a predetermined time; a step of rinsing the hair; and a step of applying a catechin aqueous solution on the hair for a predetermined time.

Description

Hair dyeing method, hair dye set used in hair dyeing method, and hair treatment agent {Hair-dying method, a set of hairdye for the method, and treatment agent for hair}

The present invention relates to a hair dye method, a hair dye set used in the hair dye method, and a hair treatment agent. Specifically, the present invention relates to a hair dye set capable of maintaining high dyeing color even when a basic dye or the like is used as a base color, and a hair treatment agent.

In recent years, hair dyes containing an oxidative dye of p-phenylenediamine or aminophenol based synthetic dyes have been widely used. A hair dye containing an oxidizing dye is excellent in color retention after hair dyeing and can express various color tones.

However, it is known that oxidizing dye causes skin disorder. It is also pointed out that environmental hormones adversely affect the ecosystem, and in addition, there are suspicions of carcinogenicity and foot allergy. In view of this, hair dyes containing an oxidizing dye are regulated in Europe and the like.

On the other hand, as a dye component of a hair dye, HC dye, basic dye, etc. which are considered to be safer than oxidizing dye are known. Conventionally, basic dyes and HC dyes are, for example, a hair manicure for the purpose of maintaining color for about two to three weeks, or a color conditioner which continuously gives a color by using it several times per week. ) And color treatment. For example, Patent Document 1 below is a hair dyeing composition having both a hair dressing effect and a hair dyeing effect, and is selected from the group consisting of HC dyes, basic dyes, disperse dyes, and natural dyes. Disclosed are a hair dyeing composition comprising at least one αhydroxy acid ester and / or at least one dialkyl carbonate, and at least one crosslinked polymer, together with at least one dye or dye.

Japanese Laid-Open Patent Publication 2005-213212

Basic dyes and HC dyes are considered to have higher safety than oxidative dyes. However, since basic dyes and HC dyes dye on the hair without chemical reaction, retain a color is poor, and color failure is easy due to repeated shampoo. There was a flaw. Therefore, as described above, as a color rinse or color treatment that maintains color by continuously applying color by using hair manicure for the purpose of maintaining color for about two to three weeks or several times per week, Although practical use was possible, for example, the use of the so-called permanent hair dye for the purpose of color retention over 1 month was not tried.

An object of the present invention is to provide a dyeing method capable of maintaining color for a long period of time close to a permanent hair dye using a base color containing a basic dye or HC dye.

The dyeing method of the present invention comprises a first step of applying a base color dye liquid such as a basic dye or HC dye to the hair, and leaving it for a predetermined time, a second step of rinsing the hair to which the base color dye liquid is applied, After a 2nd process, the 3rd process of apply | coating the tea catechin aqueous solution to a hair and leaving it for predetermined time is provided. According to such a dyeing method, even if basic dye, HC dye, etc. are used as a base color, color retention can be carried out for a long time. It is thought that the effect of this invention consists of the following mechanisms, while repeating many experiments. For example, in the first step, the base dye and HC dye adhere or penetrate the hair by applying the base color dye liquid containing the basic dye or HC dye to the hair. And after rinsing in a 2nd process, the tea catechin aqueous solution is apply | coated in a 3rd process. The primary catechin or HC dye adhering or penetrating to the hair is more strongly fixed by the tea catechin applied in this third step, by contacting oxygen in the air to oxidatively polymerize to form a film. In addition, tea catechins are less likely to affect the color toned with basic dyes or HC dyes.

Moreover, in a 3rd process, when leaving the hair to which the tea catechin aqueous solution was apply | coated for predetermined time, it is preferable to irradiate far infrared rays. Color irradiation is further improved by irradiating far infrared rays. This is probably because the catechin, which is a polyphenol, is activated and the polymerization reaction of the tea catechin is accelerated before the washing of the aqueous solution of tea catechin at the time of the procedure.

In addition, when the base color dye liquid contains an alkaline reducing agent and the pH is 7.5 to 9, the hair swells with alkali, whereby basic dyes and HC dyes easily penetrate the hair. It is preferable at the point which improves.

Moreover, the hair dye set of this invention is a hair dye set used in order to perform the said dyeing method, and for preparing the base color dye which contains a basic dye as a main component for preparing a base color dye liquid, and the aqueous solution of tea catechin It is a hair dye set that combines powder containing tea catechins. According to such a hair dye set, the said dyeing method can be performed easily.

According to the present invention, even if a basic dye or HC dye is used as the base color, a dyeing method capable of long-term color retention can be provided.

EMBODIMENT OF THE INVENTION One Embodiment of the hair dyeing method of this invention is described in detail below.

The dyeing method of the present embodiment includes, for example, a basic dye which is a dye main component, and a base color dye solution containing HC dye, if necessary, to the hair, and the first step of leaving for a predetermined time and base color dye. And a second step of rinsing the hair to which the liquid is applied, and a third step of applying a tea catechin aqueous solution to the hair after the second step and allowing the hair to stand for a predetermined time.

First, the first step will be described.

The first step is a step of evenly applying a base color dye liquid containing a basic dye, which is a main component of the dye, and an HC dye, if necessary, to a portion of the hair to be hair-bristled.

A basic dye is a dye which has an amino group or a substituted amino group in a molecule | numerator, becomes a cation in aqueous solution, and what is conventionally known as a basic dye can be used without a restriction | limiting. Since a basic dye becomes a cation in aqueous solution, it dyes by ion-bonding with the negative part of the keratin protein on the hair surface. As a specific example, Basic Blue 7 (CI42595), Basic Blue 16 (CI12210), Basic Blue 22 (CI61512), Basic Blue 26 (CI44045), Basic Blue 99 (CI56059), Basic Blue, for example. 117, Basic Violet 10 (CI45170), Basic Violet 14 (CI42515), Basic Brown 16 (CI12250), Basic Brown 17 (CI12251), Basic Red 2 (CI50240), Basic Red 12 (CI48070), Basic red 22 (CI11055), basic red 51, basic red 76 (CI12245), basic red 118 (CI12251: 1), basic orange 31, basic yellow 28 (CI48054), basic yellow 57 (CI12719), Basic yellow 87, Basic black 2 (CI11825), etc. are mentioned. These may be used independently or may be used in combination of 2 or more type.

HC dye is a dye having a known 'HC' as a prefix, and because it is a dye having a small molecular diameter, it penetrates into the hair and is dyed by hydrogen bonding or intermolecular attraction, giving a deeper color development. . As a specific example, HC blue No. 2, HC blue No. 8, HC orange No. 1, HC orange No. 2, HC red No. 1, HC red No. 3, HC red No. 7, HC red No. 8, HC red No. 10, HC red No. 11, HC red No. 13, HC red No. 16, HC violet No. 2, HC yellow No. 2, HC yellow No. 5, HC yellow No. 6, HC yellow No. 7, HC yellow No. 9, HC yellow No. 12, etc. are mentioned. These may be used independently or may be used in combination of 2 or more type.

Although the ratio of basic dye and HC dye is not specifically limited, It is preferable that the ratio of HC dye in the total amount of basic dye and HC dye is 1-30 mass%, Furthermore, it is about 5-20 mass%.

The base color dye liquid has basicity, specifically, pH7.5-9, and basicity of about 8-8.5, and basic dye and HC dye are easily penetrated into hair by alkali swelling of hair. Preferred at In order to adjust to such a liquid property, it is preferable that a base color dye liquid contains an alkali chemicals. Specific examples of such alkali agents include alkaline reducing agents such as acetylcysteine, cysteamine and thioglycolic acid, ammonia, various alkanolamines, ammonium salts, organic amines, inorganic alkalis, basic amino acids, and salts thereof. There is a number. In these, especially when the alkaline reducing agent of acetylcysteine, cysteamine, thioglycolic acid, and the alkaline reducing agent which combined acetylcysteine, cysteamine, and thioglycolic acid are used, dye becomes easy to get along with hair. There is a tendency. These may be used individually, respectively, or may be used in combination of 2 or more type. It is preferable that an alkaline reducing agent is contained 0.01-1 mass%, Furthermore, 0.1-0.5 mass% in a base color dye liquid.

The base color dye liquid contains, for example, a basic dye, an HC dye used as needed, an alkali agent used as needed, and a cream base that is conventionally used as a medium for the hair dye component. It is mixed with liquid media, such as (base), is prepared in paste form, or in aqueous solution, and is apply | coated to hair. As the cream base, for example, cetanol, stearyl alcohol, octyldodecanol, oleyl alcohol, isostearyl alcohol, mineral oil, oleic acid decyl, myristic acid isostearyl, palmitic acid isopropyl, triglyceryl Cream bases obtained by appropriately blending fats and oils such as polyoxyethylene lauryl ether, sorbate lauric acid, cetes-2, oleth-10, cetoles-20, and the like can be used without particular limitation. .

As a density | concentration of the basic dye and HC dye contained in a base color dye liquid, it is preferable that it is 0.5-10 mass% in a paste or an aqueous solution, and also 1-5 mass% in the total amount of a basic dye and HC dye.

The hair to which the base color dye liquid was applied is left for a predetermined time. Although the time to leave is adjusted suitably according to the taste of the color provided to hair and the kind of dye used, it is preferable to leave it for 5 to 60 minutes normally, and also 10 to 30 minutes from a viewpoint of a work process. Moreover, at the time of standing, it is preferable to irradiate far infrared rays evenly to the hair to which the base color dye liquid was apply | coated. The irradiation time can be shortened by irradiating the hair with far infrared rays. As the temperature of the hair surface at the time of far-infrared irradiation, the temperature of 20-40 degreeC, and also 25-35 degreeC is preferable at the point which does not damage hair or does not put excessive burden on a human body.

The second step is a step of flowing the base color dye liquid by rinsing the hair to which the base color dye liquid has been left for a predetermined time.

If the rinse can wash away the base color dye solution adhered to the hair, the method is not particularly limited, but it is preferable to wash the base color dye solution with water or lukewarm water without using a shampoo. . After washing, towel drying is performed normally.

3rd process is a process of apply | coating tea catechin aqueous solution to the hair after rinse, and leaving it for predetermined time. Tea catechins are less likely to affect the color toned with basic dyes and HC dyes and are less likely to be allergens. Specific examples of tea catechins include, for example, epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, or mixtures thereof. Tea catechins and the like. In addition, the tea catechin aqueous solution may contain other polyphenols. Specific examples of the polyphenols include, for example, flavonoids (catechin, anthocyanin, flavone, isoflavone, flavan, flavanone, rutin), phenolic acids (chlorogenic acid, ellagic acid, molar property, molar profile), lignans and curcumins. And coumarins. Moreover, since many of these compounds are contained in the extract derived from the following natural products, it can also mix | blend as an extract. These may be used independently or may be used in combination of 2 or more type. On the other hand, since the coloring matters of henna polyphenol and indigo polyphenol are relatively dense, they tend to change the color tone of coloring by affecting colors tinted with basic dyes and HC dyes.

The tea catechin aqueous solution is prepared in the form of a paste which is an aqueous solution or an aqueous dispersion of tea catechin and is applied to the hair. As tea catechin aqueous solution, the aqueous solution or dispersion liquid of tea powder, such as green tea powder, is mentioned, for example. Although the content rate of the tea catechin in the paste which is an aqueous solution or an aqueous dispersion is not specifically limited, Specifically, it is preferable that it is 5-20 mass%, Furthermore, it is 10-15 mass% with the tea powder amount. On the other hand, in the aqueous solution of tea catechin, bromic acid or the like used as the hair color oxidant may be blended as necessary within the range that does not impair the effects of the present invention. Since there exists a tendency to inhibit the hair color, it is more preferable to mix | blend hair color oxidizing agents, such as a bromic acid, as long as there is no purpose.

By applying an aqueous solution of tea catechin and allowing it to stand for a predetermined time, basic dyes or HC dyes adhering to or penetrating the hair are more firmly fixed. The mechanism of this action is not fully understood. However, from the results of many experiments, the inventors have found that basic dyes adhered to or penetrated into the hair by oxidative polymerization of tea catechin, a highly active polyphenol, by oxygen in the air, It is thought that the coating | cover which covers HC dye is formed and this film | membrane suppresses color fall-out with time. This mechanism is estimated from the fact that the effect increases by irradiating far-infrared rays, especially during standing. That is, after apply | coating the tea catechin aqueous solution, color loss with time is further suppressed by irradiating a far infrared ray to hair.

As conditions of far-infrared irradiation, the temperature of the hair surface is 20-40 degreeC, and also the temperature of about 25-35 degreeC, and it is excellent in working efficiency that it is 10 to 60 minutes, Furthermore, 15 to 30 minutes, It is also preferable in that it does not damage or excessively burden a human body. On the other hand, color leaving is further suppressed by leaving it to stand for a predetermined time after far-infrared irradiation.

Then, a dyed hair can be obtained by applying a tea catechin aqueous solution and washing the tea catechin aqueous solution by applying a shampoo of the finish to the hair left for a predetermined time, preferably irradiated with far infrared rays. After washing, towel drying and ventilation drying are performed. In this manner, the hair dyeing treatment of the hair is completed.

Even if the dyeing method of this invention uses basic dye and HC dye mix | blended as needed as a base color, it can realize long-term color retention, for example for 1 month or more, and also 2 months or more. Moreover, since a basic dye and HC dye mix | blended as needed are used as a base color, it is excellent in safety. Therefore, even if it repeats long-term hair dyeing, etc., it can use with confidence.

[ Example ]

Hereinafter, an Example demonstrates this invention further in detail. In addition, the scope of the present invention is not limited at all by this Example.

(Example 1)

50 g of a base colorant mixed with 5 mass% of a dye mixture containing a basic dye and an HC dye at a ratio of 9: 1 to a cream base mainly composed of cetanol, and a mixture of acetylcysteine, cysteamine, and thioglycolic acid 50 g of alkaline agents containing 1 mass% of phosphorus alkaline reducing agents were mixed, and the base color dye liquid was prepared.

Next, the base color dye liquid prepared to the human hair bundle which consists of human hair with a total weight of 10 g with one end bound was apply | coated. On the other hand, most of the human hair which comprises a hair bundle was mostly white hair.

And the hair bundle to which the base color dye liquid was apply | coated was left for 10 minutes, and far-infrared radiation was irradiated for about 15 minutes. At this time, the temperature of the hair bundle was about 30 degreeC. Then, after confirming that the white hair of the hair bundle was evenly dyed brown, the base color dye liquid attached to the hair bundle was washed with water. Then, I wiped the moisture well with a towel.

Next, an aqueous tea catechin solution was prepared by dissolving 25 g of green tea powder (tea color treatment powder of ITCB Global Co., Ltd.) in 175 g of lukewarm water. And the prepared tea catechin aqueous solution was apply | coated to the hair bundle. And after leaving the hair bundle to which the tea catechin aqueous solution was apply | coated for 10 minutes, far-infrared ray was irradiated for about 20 minutes. At this time, the temperature of the hair bundle was about 30 degreeC. Then, it was left to stand for about 10 minutes more naturally.

The hair bundle was then triturated with a commercially available shampoo. Then, I wiped the moisture well with a towel.

On the other hand, in the said hair dye, only about half the length of the hair bundle was dyed and the other half was not dyed.

In this way, only half the hair length was obtained.

And the hair bundle which was dyed was shampooed once a day, and the change over time was observed based on the color of the non-dyed part of the color change of the dyed part. As a result, even after 2 months, the color of the dye remained in the hair dyeing part without losing color, and the color boundary between the hair dyeing part and the part not dyeing remained clearly. On the other hand, when the same procedure was applied to 70 generations of female monitors, the boundary between the white hairs of the roots grown from two months ago and the hairs that were dyed two months ago was clearly observed.

(Comparative Example 1)

A hair bundle was dyed in the same manner as in Example 1 except that the treatment of applying the aqueous catechin solution was not performed. That is, similarly to Example 1, the base color dye liquid was apply | coated to the hair bundle, the hair bundle to which the base color dye liquid was apply | coated was left for 10 minutes, and far infrared rays were irradiated for about 15 minutes. And after confirming that the white hair of the hair bundle was dyed evenly to brown, the base color dye solution adhered to the hair bundle was washed with water and further hair-washed with a commercial shampoo. Then, I wiped the moisture well with a towel. On the other hand, also in the said hair dye, only about half the length of the hair bundle was dyed and the other half was not dyed. In this way, only half the hair length was obtained.

And the hair bundle which was dyed was shampooed once a day, and the change over time was observed based on the color of the non-dyed part of the color change of the dyed part. As a result, when about three weeks had elapsed, the portion to be dyed faded, and the boundary between the portion of the dye and the portion not dyed was clearly unclear.

(Comparative Example 2)

The base color dye liquid and the tea catechin aqueous solution which were the same as what was prepared in Example 1 were mixed by 1: 1 ratio. And the mixed agent prepared to the hair bundle which consists of human hair of the total weight of 10g which one end was bound was apply | coated. On the other hand, most of the human hair which comprises a hair bundle was mostly white hair.

And the hair bundle to which the mixture was apply | coated was left to stand for 10 minutes, and far-infrared radiation was irradiated for about 20 minutes. Then, it was left to stand for about 10 minutes more naturally. The hair bundle was then triturated with a commercially available shampoo. Then, I wiped the moisture well with a towel. In this way, only half the length of hair was obtained.

And the hair | bristle bundle hair was shampooed once a day, and the change of the color of the hair dyeing part was observed based on the color of the non-dyed part. As a result, when about three weeks had elapsed, the portion to be dyed faded, and the boundary between the portion of the dye and the portion not dyed was clearly unclear. From this result, even if a base color dye liquid and a tea catechin aqueous solution were mixed and apply | coated, it turns out that color retention was not able to be fully performed.

(Example 2)

After leaving the hair bundle coated with the tea catechin aqueous solution for 10 minutes and irradiating far infrared rays for about 20 minutes, the hair bundle coated with the tea catechin aqueous solution was left in the same manner as in Example 1 except that the hair bundle was naturally left for 30 minutes. Was dyed. That is, after the tea catechin aqueous solution prepared in the same manner as in Example 1 was applied to the hair bundle, the hair bundle to which the tea catechin aqueous solution was applied was left to stand for 30 minutes, and further left for about 10 minutes.

The hair bundle was then triturated with a commercial shampoo. Then, I wiped the moisture well with a towel. A hair bundle was dyed and evaluated in the same manner as in Example 1 except for the above-described steps. As a result, when about two months passed, the part which was dyed had faded a little color. However, the boundary between the color of the portion that was dyed and the portion that was not dyed was somewhat clearly divided. Comparing this result with the result of Example 1, it turns out that a color retention effect improves by irradiating far infrared rays.

(Comparative Example 3)

Instead of applying the tea catechin aqueous solution, the hair bundles were prepared in the same manner as in Example 1 except that the henna aqueous solution was prepared using a henna aqueous solution prepared by dissolving 25 g of henna powder in 175 g of water. Dye and evaluate. As a result, even after one month, the dark brown dye remained in the hair dye without any color dropping, and the color boundary between the hair dye and the hair dye was not clear.

When dyeing using the dyeing method according to the present invention, even if a basic dye or HC dye is used as the base color, color retention can be maintained for a long time. Therefore, it can be used as a substitute for a so-called permanent hair dye that can maintain long-term color rather than hair dye for the purpose of short-term color retention.

Claims (12)

A first step of applying a base color dye liquid to the hair and leaving it for a predetermined time;
A second step of rinsing the hair to which the base color dye solution is applied;
And a third step of applying a tea catechin aqueous solution to the hair after the second step and allowing the hair to stand for a predetermined time. The method of claim 1,
The base color dye solution is a dyeing method containing a basic dye as a dye main component. The method of claim 2,
The base color dye solution further comprises a HC dye. The method of claim 1,
The base color dye solution contains an alkaline reducing agent, pH is 7.5 ~ 9 hair dyeing method. The method of claim 4, wherein
The said alkaline reducing agent is the hair dye method containing at least 1 sort (s) chosen from the group which consists of acetyl cysteine, cysteamine, and thioglycolic acid. The method of claim 1,
The hair dye method which irradiates a far infrared ray to the said hair when leaving for a predetermined time in a said 3rd process. The method of claim 1,
The aqueous solution of tea catechin is a dyeing method of aqueous solution of tea powder. The method of claim 1,
The said catechin aqueous solution is a dyeing method of the aqueous solution of the green tea powder. The method of claim 8,
The said catechin aqueous solution is a dyeing method which is the aqueous solution containing 5-20 mass% of green tea powder. A hair dye set used in the hair dyeing method according to claim 1,
A base color dye containing a basic dye as a main component for adjusting the base color dye solution;
A hair dye set comprising a powder comprising tea catechin for adjusting the tea catechin aqueous solution. 11. The method of claim 10,
The base color dye liquid further comprises a HC dye. A hair treatment agent containing green tea powder as a main ingredient.