阅读说明：本技术 染发方法 (Hair dyeing method ) 是由 向井信人 向井孝 于 2018-12-18 设计创作，主要内容包括：本发明的目的是提供一种染发方法,其在施用毛发染料后,固色性更良好,不使用对苯二胺,不易损伤毛发,可降低皮肤障碍。本发明的染发方法的特征在于,包括以下工序：涂布以规定比例混合(A)和(B)的混合物的工序；在所述涂布后设定规定时间的工序；以及,在所述规定时间后涂布毛表皮护理剂的工序,其中,(A)为至少含有碱性染料、HC染料、第二氨基酸、第一阳离子表面活性剂、增稠剂、油剂、第一pH调节剂和湿润剂的染发剂,其中所述染发剂的pH为6.8以上；(B)为至少含有碱剂、第一氨基酸、碳数为12～22的高级醇类、表面活性剂和增稠剂的毛发化妆品。(The invention aims to provide a hair dyeing method which has better fixation property after applying hair dye, does not use p-phenylenediamine, is not easy to damage hair and can reduce skin disorder. The hair dyeing method of the present invention is characterized by comprising the following steps: a step of applying a mixture obtained by mixing (A) and (B) at a predetermined ratio; setting a predetermined time after the coating; and a step of applying a hair cuticle care agent after the predetermined time, wherein (a) is a hair dye containing at least a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH adjuster, and a humectant, and the pH of the hair dye is 6.8 or more; (B) the hair cosmetic contains at least an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant and a thickener.)

1. A method for coloring hair, comprising the steps of:

a step of applying a mixture obtained by mixing (A) and (B) at a predetermined ratio,

(A) a hair dye comprising at least a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH adjustor and a humectant, wherein the pH of the hair dye is 6.8 or more,

(B) a hair cosmetic containing at least an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant and a thickener;

setting a predetermined time after the coating; and

and applying a fur skin care agent after the predetermined time.

2. The method of claim 1, wherein the hair cuticle caring agent comprises: at least 1 selected from sodium bromate and hydrogen peroxide, a second cationic surfactant, and a second pH adjusting agent.

3. The method according to claim 1 or 2, which comprises a step of leaving for a certain period of time after the application of the hair cuticle caring agent.

4. The method according to any one of claims 1 to 3, wherein the ratio of (A)/(B) in mixing the hair dye and the hair cosmetic (B) is 1 to 20.

5. The method according to any one of claims 1 to 4, wherein the alkaline agent is at least 1 selected from the group consisting of ammonia water, ammonium carbonate, sodium carbonate, ethanolamines, ammonium bicarbonate, and arginine.

6. The method of any one of claims 1 to 5, wherein the first or second amino acid is at least 1 selected from cysteine, arginine, lysine or histidine.

7. The method according to claim 2 or 3, wherein at least 1 of the hair coloring agent, the hair cosmetic and the hair cuticle caring agent contains an antibody production inhibitor.

8. The method according to any one of claims 1 to 7, wherein the hair is heated in a step of setting a predetermined time after the application.

Technical Field

The present invention relates to a method for dyeing hair, and more particularly to a method for dyeing hair using a mixture of a hair cosmetic composition and a hair dye composition, which is less likely to damage hair, can reduce skin troubles, and is excellent in color fastness (color retention) and dye penetration.

Background

As the Hair dyeing method, there are mainly a Hair dye as a quasi drug (quasi drug for external use) a "permanent Hair dye", a Hair dye care (Hair therapy) as a cosmetic "semi-permanent Hair dye", a Hair dye treatment (Hair color treatment), and the like. In particular, hair dyes containing a substance called p-phenylenediamine (oxidation dye) are the main hair dyes as permanent hair dyes, but in the case of a dark color, the amount of diamine compound added is increased, and thus attention is required.

For example, as a hair dyeing composition containing p-phenylenediamine (oxidation dye), a hair dyeing composition characterized by containing (a) a water-soluble peroxygen bleaching agent; (b) a bleach adjunct selected from organic peroxyacid bleach precursors and/or preformed organic peroxyacids; and (c)1 or more hair dyes (patent document 1).

Disclosure of Invention

Problems to be solved by the invention

However, as described in the prior art including patent document 1, in the case of a hair dye containing p-phenylenediamine (oxidation dye) having a black-based deep color as described above, the amount of diamine compound added increases and further attention is required, and in addition, there is also a case where skin is damaged by a substance called p-phenylenediamine (oxidation dye).

In addition, Hair dye care (Hair therapy) using a semi-permanent Hair dye is characterized in that a dye (acid dye) can permeate into Hair and maintain dyeing for 2 to 3 weeks by using 1 time, but the longer the dye is attached to and stays on the scalp, the less easily the dyed dye is removed, the more difficult it is for a Hair dyeing operator to apply the Hair dye to the growing Hair roots, and the more easily the Hair dyeing operator is skilled than the Hair dye itself, and therefore, the Hair dye is considered to be a Hair dye which is used in Hair salons and beauty salons.

On the other hand, although the above-mentioned hair dyeing can be performed with a strong dyeing effect on the cortex (inside of the hair), in general hair dyeing treatment, only the cuticle (fur coat) and the cortex in the vicinity of the hair surface are dyed, and thus hair dyeing with a sufficiently good fixation property may not be achieved.

Accordingly, an object of the present invention is to provide a method for dyeing hair, which has better color fastness in dyeing hair, does not contain p-phenylenediamine, is less likely to damage hair, and can reduce skin troubles.

Means for solving the problems

The present inventors have conducted extensive studies on a hair dyeing method to achieve the above object, and as a result, have found the present invention.

That is, the method for dyeing hair according to the present invention comprises the steps of:

a step of applying a mixture obtained by mixing (A) and (B) at a predetermined ratio,

(A) a hair dye comprising at least a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH adjuster and a humectant, wherein the pH of the hair dye is 6.8 or more,

(B) a hair cosmetic containing at least an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant and a thickener;

setting a predetermined time after the coating; and

and applying a fur skin care agent after the predetermined time.

In a preferred embodiment of the method for dyeing hair of the present invention, the hair cuticle caring agent comprises: at least 1 selected from sodium bromate and hydrogen peroxide, a second cationic surfactant, and a second pH adjusting agent.

In a preferred embodiment of the method for dyeing hair of the present invention, the method comprises a step of leaving the hair skin care agent for a predetermined period of time after application.

In a preferred embodiment of the method for dyeing hair according to the present invention, the ratio of the hair dye (a) to the hair cosmetic (B) is 1 to 20.

In a preferred embodiment of the method for dyeing hair of the present invention, the alkaline agent is at least 1 selected from the group consisting of ammonia water, ammonium carbonate, sodium carbonate, ethanolamines, ammonium bicarbonate and arginine.

In a preferred embodiment of the method for dyeing hair of the present invention, the first or second amino acid is at least 1 selected from cysteine, arginine, lysine, and histidine.

In a preferred embodiment of the method for dyeing hair according to the present invention, at least 1 of the hair dye, the hair cosmetic, and the cuticle caring agent contains an antibody production inhibitor.

In a preferred embodiment of the method for coloring hair of the present invention, the hair is heated in a step of setting a predetermined time after the application.

Effects of the invention

According to the hair dyeing method of the present invention, the following advantageous effects are obtained: since p-phenylenediamine is not contained, the risk of rash and contact dermatitis can be reduced, and in addition, hair is not easily damaged even when the use period of hair dyeing is prolonged, and the color fastness (color retention) is good, so that a hair dyeing operator can provide hair dyeing to a new hair growing part without worrying about adhesion to the scalp.

Detailed Description

The hair dyeing method of the present invention is characterized by comprising the following steps:

a step of applying a mixture obtained by mixing (A) and (B) at a predetermined ratio,

(A) a hair dye comprising at least a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH adjuster and a humectant, wherein the pH of the hair dye is 6.8 or more,

(B) a hair cosmetic containing at least an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant and a thickener;

setting a predetermined time after the coating; and

and applying the fur skin care agent after the predetermined time.

Preferably, the hair dye contains a basic dye, an HC dye, a second amino acid, a first cationic surfactant, a thickener, an oil agent, a first pH regulator, and a humectant, and has a pH of 6.8 or more, and the hair cosmetic preferably contains an alkaline agent, a first amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant, and a thickener.

First, the hair dye composition and the hair dye applicable to the present invention are explained below.

The hair dye composition applicable to the present invention comprises a basic dye, an HC dye, an amino acid, a cationic surfactant, a thickener, an oil agent, a pH adjuster and a humectant, and is characterized in that the pH of the hair dye composition is at least pH 6.8. The hair dye composition to be used in the present invention can be dyed while supplementing and repairing (as damage to hair) basic amino acids that have been conventionally discharged from hair by allowing the hair cuticle to be easily opened and introducing basic amino acids such as L-arginine, L-lysine, L-histidine and salts thereof into the hair when the pH is 6.8 or more. That is, when the hair dye composition of the present invention is applied, the hair coat can be opened, and an advantageous effect of dyeing hair with good fixation can be achieved.

In a preferred embodiment of the hair dye composition applicable to the present invention, the pH adjuster includes at least 1 selected from citric acid, phosphoric acid, lactic acid, malic acid, aqueous ammonia, ammonium bicarbonate, ammonium carbonate, potassium hydroxide, sodium hydroxide, monoethanolamine, ammonium phosphate, sodium citrate, ammonium citrate, sodium lactate, potassium phosphate, and sodium phosphate, from the viewpoint of easy opening of hair coat and adjustment of pH to 6.8 or more. From the viewpoint of being weakly alkaline and having a small amount of residue on hair, preferred examples of the pH adjuster include ammonium hydrogen carbonate and sodium hydrogen carbonate.

From the viewpoint of effectively opening hair cuticle and exhibiting good color fastness, the pH of the hair dye composition of the present invention is preferably adjusted to 6.8 or more, more preferably to 7.0 to 9.0, and even more preferably to 7.3 to 8.0.

In a preferred embodiment of the hair dye composition applicable to the present invention, the amino acid is at least 1 selected from cysteine, arginine, lysine and histidine. The amount of the amino acid is not particularly limited, and is preferably 0.01 to 0.5% by mass, more preferably 0.01 to 0.3% by mass, and even more preferably 0.02 to 0.2% by mass, based on the total amount of the composition, from the viewpoint of moisture retention and softness retention of hair.

In a preferred embodiment of the hair dye composition applicable to the present invention, the Basic dye is at least 1 selected from the group consisting of Basic blue 3(Basic blue 3), Basic blue 7(Basic blue 7), Basic blue 99(Basic blue 99), Basic red 76(Basic red 76), Basic yellow 57(Basic yellow 57), Basic brown 16(Basic brown 16) and Basic brown 17(Basic brown 17) under the name INCI (INCI: International Nomenclature of Cosmetic raw materials International Nomenclature). Note that INCI (INCI: International Nomenclature of Cosmetic raw materials) is an International name for Cosmetic ingredients specified by the International Nomenclature commission (INC: International Nomenclature Committee). The amount of the basic dye is not particularly limited, and is preferably 0.0005 to 5% by mass, more preferably 0.01 to 3% by mass, and still more preferably 0.1 to 1% by mass based on the total amount of the composition, from the viewpoint of reducing damage to hair although the dyeing power is not strong.

In addition, a preferable embodiment of the hair dye composition applicable to the present invention is characterized in that the HC dye is at least 1 selected from HC blue 2(HC blue 2), HC yellow 2(HC yellow 2), HC yellow 4(HC yellow4), HC yellow 5(HC yellow5), HC red 1(HC red 1), HC red 3(HC red 3) and HC orange 1(HC orange1) in INCI nomenclature. The amount of the HC dye is not particularly limited, and is preferably 0.0005 to 5% by mass, more preferably 0.01 to 3% by mass, and even more preferably 0.1 to 1.5% by mass based on the total amount of the composition, from the viewpoint of coloring the HC dye into the hair and further developing a darker color.

In a preferred embodiment of the hair dye composition applicable to the present invention, the cationic surfactant is a quaternary ammonium salt and/or a tertiary amine, from the viewpoint of further improving the feel to the hair. In a preferred embodiment of the hair dye composition of the present invention, the quaternary ammonium salt is alkyltrimethylammonium chloride solution, stearyltrimethylammonium chloride or stearyltrimethylammonium bromide. In a preferred embodiment of the hair dye composition applicable to the present invention, the tertiary amine is stearic acid dimethylaminopropionamide, stearic acid diethylaminoacetamide, or behenamide

Amidopropyl dimethylamine. The amount of the cationic surfactant is not particularly limited, and is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and still more preferably 1 to 3% by mass based on the total amount of the composition, from the viewpoint of enhancing the hair dyeing ability of the basic dye.

In addition, the hair dye composition applicable to the present invention may further contain a thickener, a humectant, an oil agent, and the like. In the present invention, these thickeners and the like are not particularly limited as long as they do not depart from the effects of the present invention, and known ones can be used. Examples of the thickener include hydroxyethyl cellulose, xanthan gum, and polyethylene glycol from the viewpoint of product stability. The amount of the thickener is not particularly limited, and is preferably 0.05 to 0.8% by mass, more preferably 0.1 to 0.5% by mass, and still more preferably 0.2 to 0.4% by mass, based on the total amount of the composition, from the viewpoint of improving the stability of the product.

Further, examples of the humectant include glycerin, diglycerin, and 1, 3-butanediol. The amount of the wetting agent is not particularly limited, and is preferably 0.1 to 15% by mass, more preferably 0.5 to 10% by mass, and still more preferably 1 to 5% by mass based on the total amount of the composition, from the viewpoint of ease of application of the product.

Examples of the oil agent include oils and fats, waxes, hydrocarbons, alkyl glyceryl ethers, esters, silicones, and higher alcohols. The amount of the oil agent is not particularly limited, and is preferably 1 to 30% by mass, more preferably 2 to 20% by mass, and still more preferably 3 to 15% by mass, from the viewpoint of preventing drying during the coating standing time and stability of the product.

The hair dye composition applicable to the present invention is characterized by containing the hair dye composition applicable to the present invention. The hair dye composition applicable to the present invention can be suitably contained in the hair dye according to the desire or according to the use of the hair dye.

Examples of hair cosmetic compositions and hair cosmetics applicable to the present invention are as follows.

The hair cosmetic composition applicable to the present invention is characterized by containing an alkaline agent, an amino acid, a higher alcohol having 12 to 22 carbon atoms, a surfactant and a thickener. The hair cuticle can be opened by the alkaline agent contained in the hair cosmetic composition (alkaline cuticle swelling agent). That is, in conventional hair dyeing and the like, there are cases where sufficient good fixation cannot be achieved by dyeing only the cuticle (fur coat) and the cortex near the hair surface, but the hair cosmetic composition of the present invention has an advantageous effect that the cuticle can be opened and hair dyeing with good fixation can be achieved.

That is, the present inventors have found that the basic dye and the HC dye can dye only the epidermis and the cortex near the surface of the hair, and that the basic dye and the HC dye can be dyed deeper into the hair by using the hair cosmetic composition (swelling agent) of the present invention.

The amount of the alkali agent is not particularly limited, and the pH of the hair cosmetic composition is preferably adjusted to 7.0 to 11.5, more preferably 8.5 to 11.5, and further preferably 9.0 to 9.7, from the viewpoint of effectively opening the hair cuticle and favorably exerting the swelling effect. The amount of the alkali agent is not particularly limited, and is preferably 1 to 3% by mass based on the total amount of the composition, from the viewpoint of effectively opening the fur coat and favorably exerting the swelling effect.

The amount of the amino acid is not particularly limited, and is preferably 0.01 to 0.5% by mass, more preferably 0.01 to 0.3% by mass, and even more preferably 0.02 to 0.2% by mass, based on the total amount of the composition, from the viewpoint of moisture retention and softness retention of hair.

The hair cosmetic composition applicable to the present invention is not particularly limited as the higher alcohol having 12 to 22 carbon atoms, and from the viewpoint of imparting smoothness to hair, improving emulsion stability and adjusting viscosity, for example, cetyl alcohol, lauryl alcohol, myristyl alcohol, and cetyl/hard alcohol are exemplified

Fatty alcohol, stearyl alcohol, and mountain woodAlcohols, and the like.

The amount of the higher alcohol having 12 to 22 carbon atoms is not particularly limited, and is preferably 0.1 to 5.0% by mass, more preferably 0.1 to 3.0% by mass, and even more preferably 0.2 to 2.0% by mass, based on the total amount of the composition, from the viewpoints of imparting hair smoothness, improving emulsion stability, and adjusting viscosity.

In a preferred embodiment, the alkaline agent is not particularly limited, and examples thereof include at least 1 selected from the group consisting of ammonia water, ammonium carbonate, sodium carbonate, ethanolamines, ammonium bicarbonate and arginine. In a preferred embodiment of the hair cosmetic composition applicable to the present invention, the ethanolamines are monoethanolamine, diethanolamine and/or triethanolamine. However, ethanolamine compounds such as monoethanolamine have a high residue in hair and may damage hair. Arginine has high affinity for hair, but is weak as an alkaline agent and mild in reaction. Ammonia water has a pungent odor due to its volatility, but has a characteristic of being less in residue in hair and having a quick response. From this viewpoint, ammonia is preferably used as the alkali agent.

In a preferred embodiment, the amino acid includes at least 1 selected from cysteine, arginine, lysine and/or histidine. Although it has been reported that arginine and histidine in the hair decrease with age, arginine, histidine hydrochloride, and lysine hydrochloride incorporated in the hair cosmetic composition (swelling agent) of the present invention permeate the hair and exert a hair restoration effect in the present invention.

In the hair cosmetic composition applicable to the present invention, a surfactant and a thickener may be contained. The surfactant and the thickener are not particularly limited as long as they do not depart from the effects of the present invention, and known ones can be used.

In addition, in a preferred embodiment, in the hair cosmetic composition (alkaline cuticle swelling agent) applicable to the present invention, the alkaline agent contained in the hair cosmetic composition can open the cuticle.

After the hair is dyed, which contains the hair cosmetic composition applicable to the present invention, for example, a hair cuticle caring agent containing sodium bromate can be applied to tighten (tighten) the cuticle. In addition, HC dyes that are easily discolored may be stained inside the hair to delay the discoloration.

The hair cosmetic composition of the present invention is characterized by containing the above-mentioned hair cosmetic composition.

Examples of hair cosmetics and hair dyes have been described above.

In the present invention, these hair dyes and hair cosmetics may be mixed at a predetermined ratio and applied. The present inventors have found that when both are mixed, the dyeing is concentrated and the fastness is good, as compared with when they are used alone. The predetermined ratio is not particularly limited as long as both are mixed, and in a preferred embodiment, the ratio of the hair dye (a) to the hair cosmetic (B) is 1 to 20. That is, from the viewpoint of hair dyeing ability, the ratio of the hair dye to the hair cosmetic is preferably 1 to 20: 1, more preferably 5 to 15: 1, more preferably 8 to 12: 1, mass ratio.

In the present invention, a predetermined time may be set after the application from the viewpoint that the fur coat can be effectively opened, the swelling effect can be exhibited well, and dyeing can be performed. In a preferred embodiment of the method for coloring hair of the present invention, the hair is heated (heated) in the step of setting the predetermined time after the application, from the viewpoint of enhancing the dye penetration power. The heating time is not particularly limited as desired, and may be 1 to 60 minutes, and more preferably 5 to 40 minutes, from the viewpoint of effectively dyeing hair (hair dyeing). From the viewpoint of the time of the hair dyeing process, it may be carried out by raising the temperature to about 40 ℃ for about 10 minutes (about 10 minutes or more) and maintaining the temperature for about 20 minutes. In addition, in a preferred embodiment of the method for coloring hair of the present invention, the coated part may be covered with a hair pack and warmed using a hair dryer during the period of placing the coated hair.

In the present invention, the step of applying the fur skin care agent after the predetermined time may be further included. In a preferred embodiment of the hair dyeing method of the present invention, the hair dyeing method may further comprise a step of leaving the hair for a certain period of time from the viewpoint of tightening the opened cuticle (or cuticle) and dyeing the HC dye into the hair after applying the cuticle-caring agent. The standing time is not particularly limited, and for example, the standing time may be 1 to 20 minutes, and more preferably 1 to 10 minutes.

In a preferred embodiment of the hair dyeing method of the present invention, the hair dyeing method may further comprise a step of applying a hair cuticle caring agent containing: at least 1 selected from sodium bromate and hydrogen peroxide, a second cationic surfactant, and a second pH adjusting agent. As the second pH adjuster, a pH adjuster in an acidic region may be added. In addition, from the viewpoint of restoration to a healthy hair state (isoelectric point pH4.5 to 5.5), examples of the pH adjuster include organic acids such as citric acid, phosphoric acid, phytic acid, lactic acid, and malic acid, and acidic amino acids such as glutamic acid.

In a preferred embodiment of the method for dyeing hair of the present invention, the alkaline agent is at least 1 selected from the group consisting of ammonia water, ammonium carbonate, sodium carbonate, ethanolamines, ammonium bicarbonate and arginine. As the alkaline agent, the above description of the hair cosmetic and the like applicable to the present invention can be referred to.

In a preferred embodiment of the method for dyeing hair of the present invention, the first or second amino acid is at least 1 selected from cysteine, arginine, lysine and histidine. With respect to the first or second amino acid, the above-mentioned explanations applicable to the hair cosmetic and hair dye, etc. of the present invention can be referred to.

In addition, in a preferred embodiment of the method for coloring hair according to the present invention, it may further comprise applying a shampoo. When applying shampoo to hair, it is preferable to apply the shampoo before the hair cosmetic from the viewpoint of eliminating the hindering factors such as the hair styling agent and sebum. In this case, as the Shampoo, estrone black, apple Shampoo Premium, Nanosupple Cleansing Shampoo, and the like (manufacturers and vendors of these products: Sunny Place Co.) can be preferably used.

In addition, the shampoo can also be applied after the hair is dyed. In this case, the pH of the shampoo is more preferably weakly acidic. In addition, as the Shampoo, estrone Shampoo, or Applel shampooo Premium (manufacturer and distributor: Sunny Place Co.) can be preferably used.

In a preferred embodiment of the method for dyeing hair according to the present invention, at least 1 of the hair dye, the hair cosmetic and the cuticle caring agent may contain an antibody production inhibitor. The antibody production inhibitor includes extracts of pomegranate seed extract, mushroom belonging to the genus Agaricus, etc., extract of peppermint (willow mint), and extract of edelweiss, etc., from the viewpoint of preventing and improving allergic diseases.

For example, the following description will be given of a case where pomegranate seed extract is used as an antibody production inhibitor. The pomegranate seed extract is an extract from pomegranate seeds. The pomegranate seed extract suitable for use in the present invention can be obtained from all pomegranate seed extracts as long as the pomegranate seed extract is derived from pomegranate seeds.

In a preferred embodiment, the pomegranate seed extract is characterized by containing punicic acid or ellagic acid. The pomegranate seed extract can be obtained, for example, by the following method. First, the extract is characterized in that the extract is obtained by immersing a pulverized product obtained by pulverizing pomegranate seeds in at least 1 solvent selected from the group consisting of ethanol, methanol, water and hexane, and taking out a supernatant. For example, oscillatory extraction may be performed. In the extraction by shaking, for example, it may be extracted while being rotated by being placed on a rotator in a low-temperature room at about 4 ℃.

In more detail, first, pomegranate seeds are prepared. Washing and drying pomegranate seeds according to the need. It is preferable to sufficiently dry the resin. This is to enable subsequent uniform comminution.

Then, pomegranate seeds are pulverized. The grinding method is not particularly limited, and a known grinding machine such as a ball mill, a hammer mill, a roll mill, a rod mill, a sample mill, a stamp mill, a disintegrator, a mortar, or a mixer with a cooling device can be used. It is considered that the pomegranate seed composition is decomposed by heat generated during the pulverization, and the pulverization time is set to several seconds, and the repetition is repeated ten times.

Then, after the pomegranate seeds are pulverized to obtain a pulverized product, the pulverized product is immersed in various solvents. The solvent used in this case is not particularly limited, and can be appropriately set in accordance with the desired effect. In a preferred embodiment of the method for producing a pomegranate seed extract of the present invention, the solvent is at least 1 selected from the group consisting of ethanol, methanol, hexane, and water. Examples of the solvent include polar or nonpolar solvents such as ethanol, methanol, water, hexane, ethyl acetate, chloroform, and acetone. Preferred examples thereof include methanol, ethanol, and water.

The impregnation can be carried out with slow stirring. The pulverized product is immersed in various solvents to obtain various solutions. The various solutions are stirred depending on the state of the solution, and the solution may be left as it is, depending on the case. The stirring is not particularly limited, and the stirring can be continued for 10 hours to 48 hours, preferably for about 1 day (24 hours).

Then, by taking out the supernatant, an extract of pomegranate seeds can be obtained. The supernatant was evaporated to dryness as required. The evaporation and drying can be carried out by using an evaporator on a warm bath at 20 to 60 ℃, preferably 37 to 40 ℃. By evaporating to dry and solidify, the semen Granati extract can be preserved for a long time.

The components contained in pomegranate seeds can be separated from each other by extracting the pomegranate seeds with solvents having different polarities and separating the extracted components according to their physical properties. Therefore, the types and contents of components of pomegranate seed extract vary depending on the solvent used.

An example of the method for coloring hair according to the present invention is described below.

1) Appropriate pre-shampooing is performed to remove the styling agent and dirt.

2) The hair dye (containing a hair dyeing component) and the hair cosmetic (containing an alkaline hair cuticle swelling agent) applicable to the present invention are mixed at a predetermined ratio and applied to the hair by brushing.

3) The coated hair was covered with a film, warmed using a hair dryer, and left for about 30 minutes.

4) During this about 30 minutes, the temperature was raised to around 40 ℃ for about 10 minutes by a blower, and then the temperature was maintained for about 20 minutes.

5) After the step 4), the hair cuticle caring agent was sufficiently applied to the hair and left to stand for about 6 minutes.

6) After 5), shampooing is carried out with hot water and shampoo at a suitable temperature.

7) After towel drying, the hair was dried with a hair dryer.