JP5325412B2 - Hair treatment composition and method of using the same - Google Patents

Description

  The present invention relates to a hair treatment composition for dyeing hair, for example. More specifically, a hair treatment composition and a use thereof in which the hair feel reduction caused by the hair treatment of the hair treatment composition containing a relatively large amount of a chelating agent is suppressed by a post-treatment agent containing a specific component. Regarding the method.

  In recent years, with the diversification of hairstyles, there are increasing opportunities for hair to be treated with chemical treatment agents such as hair dyes and depigmenting agents. Since these treatment agents contain, for example, an alkaline agent and an oxidizing agent, hair that has been repeatedly treated with a chemical treatment agent tends to be damaged. Damaged hair has the problem of reduced hair feel. Conventionally, an oily component such as silicone has been used as a component for suppressing a decrease in hair feel.

By the way, the structure which mix | blends a chelating agent with a hair dye is disclosed by patent document 1. FIG. The chelating agent is usually added in a small amount in the liquid agent in order to suppress the decomposition of the oxidizing agent and improve the stability of the preparation. The hair dye of Patent Document 1 contains more chelating agents than that for the purpose of improving leveling.
JP 2007-137828 A

  However, the hair dye disclosed in Patent Document 1 has a problem in that the chelating agent added to improve the leveling property causes the hair to become rough and rough, which ultimately reduces the feel of the hair. was there. In addition, even if post-treatment with a hair treatment containing an oily component, for example, silicone, which is known as a component that suppresses hair feel reduction, the effect of suppressing the hair feel caused by the chelating agent is only temporary. There was a problem that it was not recognized and sustainability could not be expected. On the other hand, when the blending amount of the chelating agent in the hair dye is lowered, there is a problem that the leveling property is lowered.

  The present invention has been made by finding that the above problem can be solved by using a post-treatment agent containing aminoethylsulfonic acid as a result of intensive studies by the present inventors. An object of the present invention is to provide a hair treatment composition that can suppress a reduction in hair feel caused by a chelating agent and a method for using the same.

In order to achieve the above object, the invention described in claim 1 includes a hair dye composition configured to mix an oxidative dye, an alkaline agent, and an oxidant at the time of use, and after the treatment of the hair dye composition. In the hair treatment composition comprising the post-treatment agent to be used, the hair dye composition contains a chelating agent so as to be 0.3 to 2.0% by mass when mixed, It is applied to suppress a decrease in hair feel caused by the chelating agent, and contains at least one selected from aminoethylsulfonic acid and salts thereof.

  The invention according to claim 2 is the hair treatment composition according to claim 1, wherein the chelating agent is ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, hydroxyethanediphosphonic acid, and It is at least one selected from the salts of

  The invention according to claim 3 is the hair treatment composition according to claim 1 or 2, wherein the hair dye composition contains a first agent containing an oxidative dye and an alkaline agent, and an oxidizer. It consists of the 3rd agent containing the 2nd agent to do and a chelating agent.

The invention according to claim 4 is configured such that an oxidation dye, an alkaline agent and an oxidant are mixed at the time of use, and a chelating agent is contained so as to be 0.3 to 2.0% by mass at the time of mixing. A hair treatment composition comprising a hair treatment composition and a post-treatment agent which is applied to suppress a decrease in hair feel caused by the chelating agent and contains at least one selected from aminoethylsulfonic acid and a salt thereof. The method of use is characterized in that it comprises a step of treating hair with the hair dye composition, and then a step of treating hair twice or more with the post-treatment agent.

  According to the present invention, it is possible to suppress a decrease in hair feel caused by a chelating agent.

  Hereinafter, embodiments in which the present invention is embodied in a hair treatment composition will be described in detail. The hair treatment composition according to the present embodiment is composed of a hair dye composition as a hair dye composition and a post-treatment agent used after the treatment of the hair dye composition. The hair dye composition is composed of, for example, a first agent, a second agent, and a third agent.

<First agent of hair dye composition>
The first agent of the hair dye composition contains, for example, an oxidation dye and an alkali agent. Oxidative dyes are compounds that can develop color due to oxidative polymerization by an oxidizing agent contained in the second agent of the hair dye composition, and are classified as dye intermediates and couplers. The oxidation dye contains at least a dye intermediate.

  Examples of the dye intermediate include p-phenylenediamine, toluene-2,5-diamine, N-phenyl-p-phenylenediamine, 4,4′-diaminodiphenylamine, p-aminophenol, o-aminophenol, and p-methyl. Aminophenol, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p-phenylenediamine, 4-amino-m-cresol, 2-amino Examples include -4-hydroxyethylaminoanisole, 2,4-diaminophenol, and salts thereof. These may be contained alone or in combination of two or more.

  Couplers develop color by binding to dye intermediates. Examples of the coupler include 5-amino-o-cresol, m-aminophenol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4. -Diamine, 2,6-diaminopyridine, diphenylamine, N, N-diethyl-m-aminophenol, phenylmethylpyrazolone, and salts thereof. These may be contained alone or in combination of two or more. Since the oxidative dye can change the color tone of the hair in various ways, it is preferable that at least one selected from the specific examples of the dye intermediate and at least one selected from the specific examples of the coupler. Composed.

  Content of the oxidation dye in a hair dye composition becomes like this. Preferably it is 0.02-25 mass%, More preferably, it is 0.2-15 mass%. When the content of the oxidation dye is less than 0.02% by mass, sufficient dyeability may not be obtained. Even if the content of the oxidative dye exceeds 25% by mass, the dyeability does not improve any more, and the economics of hair dyeing may be reduced.

  The content of the dye intermediate in the hair dye composition is preferably 0.01 to 15% by mass, more preferably 0.1 to 10% by mass. If the content of the dye intermediate is less than 0.01% by mass, sufficient dyeability may not be obtained. Even if the content of the dye intermediate exceeds 15% by mass, the dyeability does not improve any more, and the economics of hair dyeing may be reduced.

  The content of the coupler in the hair dye composition is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass. If the coupler content is less than 0.01% by mass, sufficient dyeability may not be obtained. Even if the content of the coupler exceeds 10% by mass, the dyeability does not improve any more, and the economics of hair dyeing may be reduced. The first agent is appropriately selected from dyes other than the above-mentioned oxidation dyes, for example, at least one selected from the oxidation dyes listed in the “Quasi-drug Raw Material Standards” (issued in June 1991, Yakuji Nippo) and direct dyes. You may contain.

  The alkaline agent promotes the action of the oxidizing agent contained in the second agent of the hair dye composition, and improves the dyeability by swelling the hair and improving the permeability of the dye into the hair. Examples of the alkaline agent include ammonia, alkanolamines, organic amines, inorganic alkalis, basic amino acids, and salts thereof. Examples of organic amines include 2-amino-2-methyl-1,3-propanediol and guanidine. Examples of the inorganic alkali include sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate. Examples of basic amino acids include arginine and lysine. Examples of the salt include ammonium salts. These may be contained alone or in combination of two or more.

  The content of the alkaline agent is preferably such an amount that the pH of the first agent is in the range of 8-12. If the pH of the first agent is less than 8, the action of hydrogen peroxide as an oxidizing agent contained in the second agent may not be sufficiently promoted when mixed with the first to third agents. When the pH of the first agent exceeds 12, problems such as damage to the hair tend to occur when the hair dye composition is applied to the hair.

  The first agent is, for example, water, water-soluble polymer compound, oily component, polyhydric alcohol, surfactant, saccharide, preservative, stabilizer, pH adjuster, plant extract, herbal extract, if necessary. You may contain at least 1 type chosen from vitamins, a fragrance | flavor, a ultraviolet absorber, and antioxidant.

  Water is used as a solvent or dispersion medium for each component. An appropriate amount of water is mixed with the surfactant to emulsify the first agent. Examples of the water-soluble polymer compound include gum arabic, gum karaya, gum tragacanth, sodium alginate, xanthan gum, cellulose derivatives, cross-linked polyacrylic acid, and polydimethylmethylene piperidinium chloride. Examples of the crosslinked polyacrylic acid include carbomers.

  The oily component imparts a moist feeling to the hair. Therefore, the first agent preferably contains an oil component. Examples of the oil component include fats and oils, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters, and silicones.

  Examples of oils and fats include olive oil, camellia oil, shea fat, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil , Macadamia nut oil, castor oil, coconut oil, and evening primrose oil. Examples of the waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin.

  Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, and Lanolin alcohol is mentioned.

  Examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum. Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid. Examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceralkyl alcohol, and isostearyl glyceryl ether.

  Examples of esters include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl stearate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate Octyldodecyl ricinoleate, fatty acid (C10-30) (cholesteryl / lanosteryl), cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, cetyl caprate, tricapryl Examples include glyceryl acid, diisostearyl malate, and dioctyl succinate.

  Examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, polyether-modified silicone, and an average polymerization degree of 650 to 10,000. Examples include highly polymerized silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone. Examples of the polyether-modified silicone include PEG-12 dimethicone. Specific examples of these oil components may be used alone or in combination of two or more.

  Examples of the polyhydric alcohol include glycerin, diglycerin, polyglycerin, ethylene glycol, isopentyldiol, propylene glycol (PG), dipropylene glycol (DPG), and 1,3-butylene glycol (BG).

  The surfactant is suitably blended to maintain the stability of the first agent as an emulsifier of the composition or a solubilizer of each component in the composition. Surfactants include ionic surfactants and nonionic surfactants. Examples of the ionic surfactant include a cationic surfactant, an anionic surfactant, and an amphoteric surfactant. Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate , Α-sulfone fatty acid salts, N-acylamino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinate esters. Examples of the alkyl ether sulfate include sodium laureth sulfate. Examples of the N-acylamino acid type surfactant include sodium N-lauroyl-L-glutamate. Examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, and triethanolamine.

  Examples of the cationic surfactant include alkyltrimethylammonium salt, alkenyltrimethylammonium salt, dialkyldimethylammonium salt, dialkenyldimethylammonium salt, lanolin fatty acid aminopropylethyldimethylammonium, and alkyloylamidopropyldimethylamine. Examples of the alkyl trimethyl ammonium salt include stearyl trimethyl ammonium chloride. Examples of the dialkyldimethylammonium salt include distearyldimethylammonium chloride. Examples of the counter ion of the cationic group of these surfactants include chloride ion, bromide ion, iodide ion, alkyl sulfate ion, and saccharin.

  Examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, and sodium cocoamphoacetate.

  Examples of the nonionic surfactant include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, polyoxyethylene sorbitan fatty acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, alkyl saccharide surfactant, glycerin fatty acid ester, Examples include polyoxyethylene hydrogenated castor oil, fatty acid alkanolamide, and alkylamine oxide. Examples of the polyoxyalkylene alkyl ether include laureth, ceteth, steareth, and palace. Specific examples of these surfactants may be used alone or in combination of two or more.

  Examples of the saccharide include sorbitol and maltose. Examples of the preservative include parabens. Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid. Examples of the pH adjuster include lactic acid, glycolic acid, tartaric acid, malic acid, pyrrolidone carboxylic acid (PCA), succinic acid, citric acid, glutamic acid, 2-amino-2-methyl-1-propanol (AMP), and triethanolamine. (TEA), and arginine. Examples of the antioxidant include ascorbic acid and sulfite. The dosage form of the first agent is not particularly limited, and examples thereof include powder, liquid, gel, foam, and cream. Examples of the liquid include aqueous solutions, dispersions, and emulsions.

<Second agent of hair dye composition>
The second agent of the hair dye composition contains an oxidizing agent. The oxidant decolorizes melanin contained in the hair and oxidizes the oxidative dye contained in the first agent of the hair dye composition to develop a color. Examples of the oxidizing agent include perborate, percarbonate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphoric acid. Examples include hydrogen peroxide adducts of salts, hydrogen peroxide adducts of pyrophosphate, urea peroxide, melamine peroxide, bromate, and hydrogen peroxide. The content of the oxidizing agent in the second agent is preferably 0.1 to 15.0% by mass when the total amount of the second agent is set to 100% by mass.

  The 2nd agent contains the component normally contained in the 2nd agent of an oxidation hair dye composition as components other than an oxidizing agent. The second agent may appropriately contain components other than the oxidation dye and the alkali agent, which are contained in the first agent of the hair dye composition. When the second agent contains hydrogen peroxide as an oxidizing agent, the second agent preferably contains a stabilizer in order to suppress decomposition of hydrogen peroxide. Examples of the stabilizer include urea, phenacetin, sodium stannate, ethylene glycol phenyl ether, 8-oxyquinoline, and phosphoric acid. The dosage form of the second agent is not particularly limited, and examples thereof include powder, liquid, gel, foam, and cream. Examples of the liquid include aqueous solutions, dispersions, and emulsions.

<Third agent of hair dye composition>
The third agent of the hair dye composition contains a chelating agent. A chelating agent is mix | blended in order to improve leveling property. In addition, when a chelating agent is contained in at least one of the first agent and the second agent, it is not necessary to constitute the third agent. Examples of chelating agents include ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), dihydroxyethylethylenediaminediacetic acid (DHEDDA), 1,3-propanediaminetetraacetic acid (1,3PDTA), and diethylenetriaminepentaacetic acid. (DTPA), triethylenetetramine hexaacetic acid (TTHA), nitrilotriacetic acid (NTA), hydroxyethyliminodiacetic acid (HIMDA), L-aspartic acid-N, N-diacetic acid (ASDA), aminotrimethylenephosphonic acid ( NTMP), hydroxyethane diphosphonic acid (HEDP), salts thereof, derivatives thereof, and salts of derivatives thereof. These may be contained alone or in combination of two or more. Among these chelating agents, EDTA, HEDTA, DTPA, HEDP, and salts thereof, which have a high effect of improving leveling properties, are preferable. In addition, the compound mentioned above as a specific example may be contained with the compound in the state in which the hydrate was formed.

  The content of the chelating agent is 0.3 to 2.0% by mass, more preferably 0.5 to 1.5% by mass in the hair dye composition in which the first agent to the third agent are mixed. . When the content of the chelating agent is less than 0.3% by mass, the effect of improving leveling cannot be sufficiently exhibited. When content of a chelating agent exceeds 2.0 mass%, there exists a possibility of causing the fall of the depth of dyeing.

  The third agent may appropriately contain components other than the oxidation dye and the alkali agent, which are contained in the first agent of the hair dye composition, as components other than the chelating agent. The dosage form of the third agent is not particularly limited, and examples thereof include powder, liquid, gel, foam, and cream. Examples of the liquid include aqueous solutions, dispersions, and emulsions.

<Hair dye composition>
The hair dye composition is prepared by mixing the first agent, the second agent, and the third agent at a predetermined ratio. The dosage form of the hair dye composition is not particularly limited, and examples thereof include liquid, cream, gel, and foam. Next, the post-treatment agent will be described.

<Post-treatment agent>
The post-treatment agent contains at least one selected from aminoethylsulfonic acid (taurine) and a salt thereof. At least one selected from aminoethylsulfonic acid and a salt thereof suppresses a decrease in hair feel caused by the chelating agent. As the aminoethyl sulfonate, known components can be appropriately employed, and examples thereof include alkali metal salts and salts with basic amino acids. Examples of the alkali metal salt include sodium salt and potassium salt. Examples of basic amino acids include triethanolamine salt, chitosan salt, and lysine / arginine.

  The content of at least one selected from aminoethylsulfonic acid and a salt thereof in the post-treatment agent is preferably 0.005 to 10% by mass, more preferably 0.05 to 5% by mass. When content is less than 0.005 mass%, the effect which suppresses the touch reduction of hair cannot fully be exhibited. On the other hand, even if the content exceeds 10% by mass, no further improvement in the effect can be expected.

  The post-treatment agent may appropriately contain a component other than the oxidation dye and the alkali agent contained in the first agent of the hair dye composition as a component other than at least one selected from aminoethylsulfonic acid and a salt thereof. Good. The dosage form of the post-treatment agent is not particularly limited, and examples thereof include liquid, gel, foam, and cream. Examples of the liquid include aqueous solutions, dispersions, and emulsions.

  This post-treatment agent is applied to the hair after the hair dyeing treatment with the hair dye composition. This post-treatment agent may be used after being applied to the hair, for example, by rinsing with water, warm water or shampoo, so that the same composition adhering to the hair is not washed away with water, warm water or shampoo, for example. May be used. For example, when using it by washing away using water, warm water or shampoo, the treatment with the post-treatment agent may be repeated. In this case, in order to improve the effect of suppressing the decrease in hair feel caused by the chelating agent, the hair treatment operation with the post-treatment agent is preferably repeated twice or more. When the treatment with the post-treatment agent is repeated twice or more, the treatment may be repeated twice or more on the same day, the treatment with the first treatment agent on the first day, the second treatment on the second day, etc. You may use it, leaving a space above.

According to the embodiment described in detail above, the following effects are exhibited.
(1) In this embodiment, aminoethylsulfonic acid was blended in the post-treatment agent used after the treatment of the hair dye composition containing the chelating agent. Therefore, it is possible to suppress a decrease in hair feel caused by the chelating agent. In the hair treatment composition containing an alkaline agent, the chelating agent is alkaline. Therefore, the synergistic effect with aminoethylsulfonic acid, which is an acidic component, is considered to improve the moisture retention of the hair and suppress the decrease in hair feel.

  (2) In this embodiment, 0.3-2.0 mass% of chelating agents are contained in the hair dye composition. Therefore, leveling can be improved. Moreover, the hair after a hair dyeing process can be finished in a deep dyeing.

  (3) In this embodiment, EDTA, HEDTA, DTPA, HEDP, and salts thereof are preferably used as chelating agents. Therefore, leveling can be further improved.

  (4) In this embodiment, as a hair dye composition, a hair dye comprising a first agent containing an oxidizing dye and an alkaline agent, a second agent containing an oxidizing agent, and a third agent containing a chelating agent. An agent composition was constructed. Therefore, since each active ingredient is stored separately, the storage stability of each active ingredient can be improved.

  (5) In the present embodiment, the method of using the post-treatment agent is preferably performed by repeating a series of treatment operations including application of the post-treatment agent to the hair and washing-out operations twice or more. Accordingly, it is possible to further improve the hair touch reduction effect exerted by aminoethylsulfonic acid.

The above embodiment can be modified as follows.
-In the said embodiment, you may divide | segment and further comprise each component mix | blended with the 1st agent-3rd agent of a hair dye composition, and a post-processing agent.

  In the above embodiment, a chelating agent may be contained in at least one of the first agent and the second agent. Further, the third agent may not be constituted by blending the total amount of the chelating agent only in at least one of the first agent and the second agent.

  -In the said embodiment, you may apply as 1 agent type which contains all the oxidation dye, an alkaline agent, an oxidizing agent, and a chelating agent.

Next, the embodiment will be described more specifically with reference to examples.
The 1st agent, the 2nd agent, and the 3rd agent of the hair dye composition containing each component shown in Table 1 were prepared. The first agent, the second agent, and the third agent of the hair dye composition shown in Table 1 correspond to each example as shown in Tables 4 and 5, with each component shown in Table 2 as the other components. It is blended to do. The numerical value in the column which shows each component in Table 1, 2 shows content of the component of the said column, The unit is the mass%. Then, the first agent to the third agent are mixed at a mass ratio of 10: 10: 1 (in the case where the third agent is not used, the first agent: second agent is 1: 1), and each hair dye composition. Was prepared. Moreover, each post-processing agent containing each component shown in Table 3 was prepared. The numerical value in the column indicating each component in Table 3 indicates the content of the component in the column, and the unit is mass%.

  First, a human hair bundle (hereinafter referred to simply as a hair bundle) manufactured by Beaulux Co., Ltd. having a length of 15 cm was subjected to bleach treatment by a conventional method using (1) powder bleach (Hoyu Corporation: Hoyu Powder Bleach) and dried. Left for days. Next, (2) each hair dye composition was applied to the bleached hair bundle using a brush, allowed to stand for 30 minutes and then washed with water. Next, it was treated twice using (3) shampoo (manufactured by Hoyu Co., Ltd .: Bigene Treatment Shampoo). Next, (4) each shampoo was washed away, and each post-treatment agent was applied. The post-treatment agent is applied to each hair so as to correspond to each example as shown in Tables 4 and 5. After applying the post-treatment agent, it was left for 1 minute and then washed with water. Next, (5) rinse (manufactured by Hoyu Co., Ltd .: Vigen Treatment rinse) is applied once, and the hair bundle is dried with warm air. Further, when the post-treatment is repeated a plurality of times, first, (6) the dried hair bundle is washed with water. Next, (7) each post-treatment agent is applied, left for 1 minute and then washed with water. Next, (8) Dry with warm air. Next, (9) this series of treatment steps (6) to (8) was further repeated 4 times (after the completion of step (9), the post-treatment agent was used six times in total). Using each hair bundle thus treated with the hair dye composition and the post-treatment agent, the following leveling property, depth of dyeing and friction were evaluated, and the evaluation results are shown in Tables 4 and 5. It is written together.

（均染性効果）
上記（５）の処理工程終了時に評価した。２０名のパネラーが標準光源下で毛束の色調の均一性を目視にて観察することにより、毛髪全体が均一に染色されているか否かで評価し、均一であると評価した人数が１８人以上の場合を「優れる」とし、１１人〜１７人の場合を「良好」とし、４人〜１０人の場合を「やや悪い」とし、４人未満の場合を「悪い」とした。

(Leveling effect)
Evaluation was made at the end of the processing step (5). Twenty panelists evaluated whether or not the whole hair was uniformly dyed by visually observing the uniformity of the color tone of the hair bundle under a standard light source, and 18 people evaluated that it was uniform. The above cases were evaluated as “excellent”, the case of 11 to 17 persons was “good”, the case of 4 to 10 persons was “slightly bad”, and the case of less than 4 persons was “bad”.

(Dye depth)
Evaluation was made at the end of the processing step (5). 20 panelists visually evaluated the color tone of the hair bundle under a standard light source, and evaluated whether it was a deep color tone, and the number of people who evaluated that it was a “deep color tone” was 18 or more. The case was “excellent”, the case of 11 to 17 was “good”, the case of 4 to 10 was “slightly bad”, and the case of less than 4 was “bad”.

(Hair friction after hair dye treatment)
Evaluation was performed in a wet state at the end of the processing step (3). 20 panelists put their fingers through the hair bundle and evaluated whether or not there is a feeling of roughness. The case where the number of people who evaluated that there is no roughness is 18 or more is “excellent”, and the case of 11 to 17 people is “ “Fair”, 4 to 10 people were “slightly bad”, and less than 4 people were “bad”.

(Hair friction after post-treatment)
Evaluation was performed in a dry state at the end of the processing step (5). 20 panelists put their fingers through the hair bundle and evaluated whether or not there is a feeling of roughness. The case where the number of people who evaluated that there is no roughness is 18 or more is “excellent”, and the case of 11 to 17 people is “ “Fair”, 4 to 10 people were “slightly bad”, and less than 4 people were “bad”.

(Hair friction after continuous use of post-treatment agent)
Evaluation was performed in a dry state at the end of the processing step (9). 20 panelists put their fingers through the hair bundle and evaluated whether or not there is a feeling of roughness. The case where the number of people who evaluated that there is no roughness is 18 or more is “excellent”, and the case of 11 to 17 people is “ “Fair”, 4 to 10 people were “slightly bad”, and less than 4 people were “bad”.

表４に示されるように、キレート化剤を含有する染毛剤組成物で染毛処理し、アミノエチルスルホン酸を含有する後処理剤で複数回処理した実施例１〜１７の毛髪では、均染性、染まりの深さ及び摩擦のいずれの評価も「優れる」ことが確認された。

As shown in Table 4, in the hairs of Examples 1 to 17, the hair was treated with a hair dye composition containing a chelating agent and treated with a post-treatment agent containing aminoethylsulfonic acid multiple times. It was confirmed that all the evaluations of dyeability, dyeing depth and friction were “excellent”.

  On the other hand, in Comparative Example 1 where the treatment with the post-treatment agent was not performed, as shown in Table 5, the evaluation of the friction was lowered. In Comparative Example 2 treated with a prior art post-treatment agent containing no aminoethylsulfonic acid, it was confirmed that the friction of hair was not improved. It was confirmed that Comparative Examples 3 and 4 treated with a post-treatment agent containing a sulfonic acid component other than aminoethylsulfonic acid did not improve hair friction. It was confirmed that Comparative Example 5 treated with a post-treatment agent containing dimethylpolysiloxane as a treatment component did not improve hair friction. It was confirmed that Comparative Example 6 in which the content of the chelating agent in the hair dye composition was less than 0.3% by mass did not improve the leveling property. In Comparative Example 7 in which the content of the chelating agent in the hair dye composition exceeds 2.0% by mass, it was confirmed that the dyeing depth is reduced. It was confirmed that Comparative Examples 8 and 9 in which aminoethylsulfonic acid was previously contained and processed in the first agent of the hair dye composition did not improve hair friction. It was confirmed that the hair treatment using the aminoethylsulfonic acid of the present invention is effective when applied as a post-treatment agent used after the hair dyeing treatment. It was confirmed that Comparative Examples 10 and 11 containing dimethylpolysiloxane as a treatment component did not sufficiently improve the friction of hair. Dimethylpolysiloxane has been conventionally known as an oily component that exerts a sliding action on hair. However, it has been confirmed that the reduction in hair friction that occurs when using a hair dye composition containing a chelating agent cannot be suppressed with dimethylpolysiloxane.

When the post-treatment agent was used only once as shown in Reference Example 1, the effect of improving hair friction after the hair dye treatment was recognized (friction evaluation column). However, after that, it was confirmed that the effect decreased by repeated treatment with water (Reference Example 1: Friction evaluation column after continuous use). In the post-treatment using the aminoethylsulfonic acid of the present invention, it was confirmed that multiple times of use were effective as shown in each example. When the post-treatment agent was used before the hair dyeing treatment as shown in Reference Example 2, no improvement in hair friction after the hair dyeing treatment was observed. It has been confirmed that the post-treatment of the present invention is effective when used after the hair dyeing treatment.
Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.

  (A) The hair treatment composition, wherein the content of at least one selected from aminoethylsulfonic acid and a salt thereof is 0.005 to 10% by mass.

Claims (4)

In a hair dye composition comprising a hair dye composition configured to mix an oxidative dye, an alkali agent and an oxidant at the time of use, and a post-treatment agent used after the treatment of the hair dye composition,
The hair dye composition contains a chelating agent so as to be 0.3 to 2.0% by mass at the time of mixing,
The said post-treatment agent is applied in order to suppress a decrease in hair feel caused by the chelating agent, and contains at least one selected from aminoethylsulfonic acid and salts thereof.   The hair treatment according to claim 1, wherein the chelating agent is at least one selected from ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, hydroxyethanediphosphonic acid, and salts thereof. Agent composition.   The hair dye composition is composed of a first agent containing an oxidizing dye and an alkali agent, a second agent containing an oxidizing agent, and a third agent containing a chelating agent. The hair treatment composition according to claim 1 or 2. Oxidation dyes, configured to mix the alkali agent and oxidizing agent, hair dye composition chelating agent such that 0.3 to 2.0 wt% during the mixing is contained in use, and said chelating In a method of using a hair treatment composition, which is applied to suppress a decrease in hair feel caused by the agent and comprises a post-treatment agent containing at least one selected from aminoethylsulfonic acid and a salt thereof,
First, a step of treating hair with the hair dye composition,
Next, the method for using a hair treatment composition comprising the step of treating the hair twice or more with the post-treatment agent.