JP6615546B2 - Second agent for oxidative hair dyeing - Google Patents

Description

  The present invention relates to a second agent for oxidative hair dye, and an oxidative hair dye kit and a hair dyeing method using the second agent.

  At present, hair coloring is widely used, and hair coloring agents based on various principles corresponding to the purpose and the like are commercially available. Among these, oxidative hair dyes are widely used because they have good dyeability and high sustainability.

  An oxidative hair dye is composed of a first agent containing an oxidative dye and an alkali agent and a second agent containing an oxidant, and is used by mixing them during use. When this is applied to the hair, the alkaline agent expands the hair and increases the permeability of the oxidation dye, and reacts with the oxidation agent (usually hydrogen peroxide) to develop the color of the oxidation dye and melanin in the hair. The hair is dyed.

  However, hair dyeing with an oxidative hair dye generally causes rough hair cuticles, thereby deteriorating the feel (combination) of the hair. In particular, when the target of hair coloring is white hair, the difference between the newly-extended white portion and the dyed black portion is conspicuous, and this problem becomes even more pronounced because it is necessary to dye hair frequently. .

  In general, it has a hydrophobic property, and therefore, it is said that the oxidation dye hardly permeates and is difficult to dye.

  Further, the first agent and the second agent need to be mixed as uniformly as possible at the time of use in order to suppress dyeing unevenness. However, normally, the viscosity of the first agent is set to be relatively high, and the viscosity of the second agent is set to be relatively low, so that it takes time to uniformly mix them. The longer the mixing time, the more serious the problem that the dyeability becomes worse as the mixing time becomes longer.

  In order to solve these problems, Patent Documents 1 and 2 propose a first agent and a second agent for oxidative hair dye containing a specific surfactant and a specific ester.

JP 2009-161492 A JP 2009-161491 A

  According to the present invention, even white hair can be dyed darker (that is, so that the L value of the color difference becomes lower), and adversely affects the feel of the hair (for example, roughening of the cuticle and further progress thereof) It is an object of the present invention to provide a second agent for oxidative hair dyeing in which cuticle peeling and the like are further reduced. Furthermore, it is an object of the present invention to provide a second agent for oxidative hair dyeing that has a higher miscibility with the first agent (that is, a shorter time required for uniform mixing with the first agent).

  As a result of intensive studies, the present inventors have combined a second agent for oxidative hair dyeing with a nonionic surfactant, a diester of an aliphatic alcohol having 8 to 30 carbon atoms, and a specific fatty acid ester. It discovered that the said subject could be solved by making it contain. The present invention has been completed as a result of further research based on this finding. That is, the present invention includes the following aspects.

Item 1. (A-1) a nonionic surfactant; (B) a diester of an aliphatic alcohol having 8 to 30 carbon atoms; (C) from the group consisting of isodecyl pivalate, isopropyl palmitate, and octyldodecyl myristate A second agent for oxidative hair dyeing, comprising at least one fatty acid ester selected.
Item 2. Item 2. The second agent for oxidative hair dyeing according to Item 1, wherein the aliphatic alcohol has 14 to 18 carbon atoms.
Item 3. Item 2. The second agent for oxidative hair dyeing according to Item 1 or 2, wherein the content of the phosphoric diester (B) is 0.005 to 2% by mass with respect to 100% by mass of the second agent for oxidative hair dyeing. .
Item 4. Item 2. The second agent for oxidative hair dyeing according to any one of Items 1 to 3, wherein the fatty acid ester (C) is isodecyl pivalate.
Item 5. Item 2. The second agent for oxidative hair dyeing according to any one of Items 1 to 4, further comprising (A-2) a cationic surfactant.
Item 6. Item 2. The second agent for oxidative hair dyeing according to any one of Items 1 to 5, which is for white hair dyeing.
Item 7. Item 7. An oxidative hair dye kit comprising the second agent for oxidative hair dyeing according to any one of Items 1 to 6 and the first agent for oxidative hair dyeing.
Item 8. A hair dyeing method comprising applying the second agent for oxidative hair dyeing according to any one of Items 1 to 6 and the first agent for oxidative hair dyeing to hair.

  By using the second agent for oxidative hair dyeing of the present invention, even white hair can be dyed darker (that is, so that the L value of the color difference becomes lower) and adversely affects the feel of the hair (for example, It is possible to further reduce the roughness of the cuticle and peeling of the cuticle due to further progress. Furthermore, since the second agent for oxidative hair dyeing of the present invention has a higher mixing property with the first agent, it is possible to further reduce the deterioration of the dyeing property due to the longer mixing time with the first agent.

  In the present invention, the “second agent for oxidative hair dye” includes a first agent containing an oxidative dye and an alkaline agent, and a second agent containing an oxidant, and the first agent and the second agent at the time of use. This refers to the second agent in the oxidative hair dye kit used in combination.

1. The second agent for oxidative hair dye The present invention comprises (A-1) a nonionic surfactant; (B) a phosphoric acid diester of an aliphatic alcohol having 8 to 30 carbon atoms (in this specification, simply “phosphoric acid”). (C) at least one fatty acid ester selected from the group consisting of isodecyl pivalate, isopropyl palmitate, and octyldodecyl myristate (hereinafter referred to simply as “fatty acid ester”). ); And a second agent for oxidative hair dye (also referred to herein as “second agent for oxidative hair dye of the present invention”). This will be described below.

  Examples of the nonionic surfactant (A-1) include polyoxyethylene polyoxypropylene alkyl ether [POE (20) POP (4) cetyl ether], hydrophilic polyoxyethylene alkyl ether [POE (21). Lauryl ether, POE (7) cetyl ether, POE (10) cetyl ether, POE (15) cetyl ether, POE (20) cetyl ether, POE (23) cetyl ether, POE (25) cetyl ether, POE (30) cetyl Ether, POE (40) cetyl ether, POE (20) stearyl ether, POE (7) oleyl ether, POE (10) oleyl ether, POE (15) oleyl ether, POE (10) behenyl ether, POE (20) behenyl ether , POE (30 Behenyl ether], propylene glycol fatty acid ester (such as propylene glycol monostearate), glycerin fatty acid ester (such as glyceryl myristate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monooleate, glyceryl dioleate, glyceryl distearate), Lipophilic polyglyceryl fatty acid ester (glyceryl monostearate, diglyceryl monooleate, polyglyceryl dioleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl tristearate, etc.), sorbitan fatty acid ester (sorbitan monolaurate) Sorbitan monopalmitate, sorbitan monostearate, sorbitan tristearate), Oily polyoxyethylene castor oil [POE (10) castor oil, POE (10) hydrogenated castor oil, etc.], lipophilic polyoxyethylene alkyl ether [POE (2) cetyl ether, POE (2) stearyl ether, POE ( 4) Stearyl ether, POE (2) oleyl ether, POE (5) behenyl ether], lipophilic polyethylene glycol fatty acid ester [polyethylene glycol monostearate (2E.O.), polyethylene glycol monostearate (4E.O. ), Polyethylene glycol monooleate (2E.O.), polyethylene glycol monooleate (6E.O.), diethylene glycol stearate, etc.]; hydrophilic polyglycerin fatty acid ester (Monora Hexaglyceryl urinate, hexaglyceryl monomyristate, hexaglyceryl monostearate, hexaglyceryl monooleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monoisostearate, decaglyceryl monooleate, decamonolinoleate Glyceryl, decaglyceryl distearate, decaglyceryl diisostearate), polyoxyethylene glyceryl fatty acid ester [monostearic acid POE (15) glyceryl, monooleic acid POE (15) glyceryl, etc.], polyoxyethylene sorbitan fatty acid ester [mono coconut oil] Fatty acid POE (20) sorbitan, monopalmitic acid POE (20) sorbitan, monostearic acid POE (20) sorbitan, monoisos POE (20) sorbitan oleate, POE (20) sorbitan monooleate], polyoxyethylene sorbite fatty acid ester [monolauric acid POE (6) sorbite, hexastearic acid POE (6) sorbite, tetrastearic acid POE (60) Sorbit, tetraoleic acid POE (6) sorbit, tetraoleic acid POE (30) sorbit, etc.), polyoxyethylene lanolin [POE lanolin, POE (5) lanolin alcohol, POE (10) lanolin alcohol, POE (20) lanolin alcohol , POE (40) lanolin alcohol], hydrophilic polyoxyethylene castor oil [POE (20) castor oil, POE (20) hydrogenated castor oil, POE (30) hydrogenated castor oil, etc.], polyoxyethylene sterol [POE (10) phytosterol, POE (20) phytosterol, POE (30) phytosterol, etc.], a hydrophilic polyethylene glycol fatty acid esters [polyethylene glycol monolaurate of (10E. O. ), Polyethylene glycol monostearate (10E.O.), polyethylene glycol monostearate (25E.O.), polyethylene glycol monostearate (40E.O.), polyethylene glycol monostearate (45E.O.), And hydrophilic nonionic surfactants such as polyethylene glycol monostearate (55EO) and polyethylene glycol monooleate (10EO). In each of the above nonionic surfactants, “POE” means polyoxyethylene, and the numerical value in parentheses after that means the number of moles of ethylene oxide added. In addition, “nEO” means that the value of n means the number of moles of ethylene oxide added. Among these, from the viewpoint that even white hair can be dyed darker, and the adverse effect on the feel of the hair can be further reduced, and further from the viewpoint of higher mixing with the first agent, Polyoxyethylene polyoxypropylene alkyl ether, hydrophilic polyoxyethylene alkyl ether and the like are preferable, and polyoxyethylene polyoxypropylene alkyl ether is more preferable.

  As the hydrophilic polyoxyethylene alkyl ether, the number of moles of ethylene oxide added is 10 to 40, preferably 10 to 30, more preferably 15 to 25, and the alkyl group has 10 to 25 carbon atoms, preferably Polyoxyethylene alkyl ethers of 12 to 20, more preferably 14 to 18, are preferred.

  As polyoxyethylene polyoxypropylene alkyl ether, the number of added moles of ethylene oxide is 10 to 40, preferably 15 to 35, more preferably 20 to 30, and the number of added moles of propylene oxide is 2 to 8, preferably Polyoxyethylene polyoxypropylene alkyl ethers having 2 to 6, more preferably 3 to 5, and the alkyl group having 10 to 25 carbon atoms, preferably 12 to 20 and more preferably 14 to 18 are preferred.

  Although a limited interpretation is not desired, the use of the above-described nonionic surfactant having a relatively large molecular weight makes it easier for the nonionic surfactant to be caught by the components in the first agent. It is considered that the mixing property with one agent is further increased.

  The nonionic surfactant (A-1) may be a single type or a combination of two or more types.

  The content of the nonionic surfactant (A-1) is, for example, 0.01 to 10% with respect to 100% by mass of the second agent for oxidative hair dyeing from the viewpoint that the effects of the present invention can be more reliably exhibited. % By mass, preferably 0.02 to 5% by mass, more preferably 0.05 to 2% by mass, further preferably 0.15 to 1.5% by mass, and still more preferably 0.3 to 0.8% by mass It is.

  The second agent for oxidative hair dyeing of the present invention is further cationic in addition to the nonionic surfactant (A-1) as a surfactant from the viewpoint of more reliably exerting the effects of the present invention. It is preferable that surfactant (A-2) is included.

  Examples of the cationic surfactant (A-2) include alkyl quaternary ammonium salts [lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, alkyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl chloride. Trimethylammonium, stearyltrimethylammonium bromide, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride, distearyldimethylammonium chloride, benzalkonium chloride, myristyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, etc.], fatty acid amidoamine salts ( Stearic acid diethylaminoethylamide, stearic acid dimethylaminopropylamide, etc.) It is below. Among these, from the viewpoint that the adverse effect on hair feel can be further reduced, alkyl quaternary ammonium salts are preferable, alkyltrimethylammonium chloride is more preferable, and alkyl chloride (carbon atoms: 15 to 30, preferably 18 to 26, more preferably 20-24) trimethylammonium is more preferred.

  One type of cationic surfactant (A-2) may be used, or two or more types may be used in combination.

  The content of the cationic surfactant (A-2) is, for example, 0.01 to 10% by mass with respect to 100% by mass of the second agent for oxidative hair dyeing from the viewpoint that the effects of the present invention can be more reliably exhibited. %, Preferably 0.02 to 5% by mass, more preferably 0.05 to 2% by mass, further preferably 0.1 to 1.5% by mass, and still more preferably 0.2 to 0.6% by mass. is there.

  The second agent for oxidative hair dyeing of the present invention is a surfactant other than the nonionic surfactant (A-1) and the cationic surfactant (A-2) (amphoteric surfactant, anionic surfactant). From the viewpoint that the effects of the present invention can be more effectively exhibited, as the surfactant, only the nonionic surfactant (A-1) or the nonionic It is preferable to contain only surfactant (A-1) and cationic surfactant (A-2).

  The phosphoric acid diester (B) is not particularly limited as long as it is a diester of two molecules of an aliphatic alcohol having 8 to 30 carbon atoms and phosphoric acid.

  The number of carbon atoms of the aliphatic alcohol is preferably 10 to 25, more preferably 12 to 22, from the viewpoint that dark hair can be dyed darker and the adverse effect on hair feel can be further reduced. More preferably, it is 14-20, More preferably, it is 14-18.

  The aliphatic alcohol may be linear or branched, but is preferably straight from the viewpoint that it can be dyed darker even with white hair and can further reduce the adverse effects on the feel of the hair. It is a chain.

  The fatty alcohol may be a saturated fatty alcohol or an unsaturated fatty alcohol, but it can be dyed darker even with white hair, and from the viewpoint that the adverse effect on the feel of the hair can be further reduced, Saturated fatty alcohol is preferred.

  Specific examples of the aliphatic alcohol include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, and linoleyl alcohol.

  The phosphoric acid diester (B) may be a single type or a combination of two or more types.

  The content of the phosphoric acid diester (B) is not particularly limited. However, from the viewpoint that dark hair can be dyed darker and adverse effects on hair feel can be further reduced. For example, 0.0005 to 5 mass%, preferably 0.005 to 2 mass%, more preferably 0.005 to 1.5 mass%, and still more preferably 0.02 to 100 mass% of the second hair agent. It is -0.5 mass%, More preferably, it is 0.05-0.2 mass%, Most preferably, it is 0.07-0.15 mass%.

  The fatty acid ester (C) is not particularly limited as long as it is at least one fatty acid ester selected from the group consisting of isodecyl pivalate (isodecyl neopentanoate), isopropyl palmitate, and octyldodecyl myristate.

  The fatty acid ester (C) is preferably isodecyl pivalate or octyldodecyl myristate from the viewpoint that dark hair can be dyed darker and adverse effects on the hair feel can be further reduced. Is more preferable.

  1 type of fatty acid ester (C) may be sufficient, and 2 or more types of combinations may be sufficient as it.

  The content of the fatty acid ester (C) is, for example, 0.05 to 8% by mass, preferably 0 with respect to 100% by mass of the second agent for oxidative hair dye, from the viewpoint that the effects of the present invention can be more reliably exhibited. .2 to 5% by mass, more preferably 0.5 to 3% by mass, and still more preferably 0.7 to 1.5% by mass.

  From the viewpoint that the effects of the present invention can be more effectively exhibited, the second agent for oxidative hair dyeing of the present invention preferably contains only the phosphoric acid diester (B) and the fatty acid ester (C) as an ester. .

  In addition to the nonionic surfactant (A-1), phosphoric diester (B), and fatty acid ester (C), the second agent for oxidative hair dyeing of the present invention is usually an oxidizing agent (D). Containing.

  The oxidizing agent (D) is not particularly limited as long as it can be blended with the second agent for oxidative hair dyeing. For example, hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate , Sodium perborate, potassium perborate, ammonium persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphate And hydrogen peroxide adducts of pyrophosphate and the like. These oxidizing agents may be blended singly or in combination of two or more. Among these oxidizing agents, hydrogen peroxide is preferable because it has excellent bleaching power for hair.

  The content of the oxidizing agent (D) is not particularly limited as long as it can satisfactorily decolorize and dye hair, and can be defined and adjusted. If hydrogen peroxide is used as the oxidizing agent (D), the content is, for example, 0.3 to 12% by mass, preferably 1 to 8% by mass, based on the second agent for oxidative hair dyeing. Preferably it is 3-6 mass%.

  The dosage form of the second agent for oxidative hair dyeing of the present invention is not particularly limited, and various known dosage forms such as cream, transparent gel, translucent gel, emulsion, liquid, foam, etc. A dosage form can be employed.

  The pH of the second agent for oxidative hair dyeing of the present invention is usually adjusted to pH 2 to 5 (preferably 2.5 to 3.5).

  In addition to the above-described components, the second agent for oxidative hair dyeing of the present invention may be an oily component other than the solvent, the phosphoric acid diester (B) and the fatty acid ester (C), or an oxidizing agent, depending on the dosage form. Stabilizers, pH adjusters, animal and plant extracts, water-soluble polymers, amino acids and derivatives thereof, proteins and derivatives thereof, vitamins, UV protection agents, antioxidants, sequestering agents, fragrances, etc. The well-known component which can be mix | blended with a 2nd agent can be included. Among these, from the viewpoint that the effects of the present invention can be more reliably exhibited, the second agent for oxidative hair dyeing of the present invention further includes an oil component other than the phosphoric acid diester (B) and the fatty acid ester (C). It is preferable.

  The solvent is not particularly limited, but is usually water. Content of a solvent is 20-90 mass% with respect to 100 mass% of 2nd agents for oxidative hair dyeing.

  The oil component is not particularly limited, and examples thereof include vegetable oils, animal oils, waxes, petroleum hydrocarbons, higher fatty acids, higher alcohols, and silicones. Among these, higher alcohols are preferable from the viewpoint that the effects of the present invention can be more reliably exhibited.

  Examples of vegetable oils include avocado oil, almond oil, olive oil, sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, palm oil, castor oil, grape seed oil, coconut oil, and hardened oil. It is done.

  Examples of animal oils include emu oil, horse oil, mink oil, and the like. Examples of the wax include jojoba oil, carnauba wax, candelilla wax, rice bran wax, lanolin, shellac and the like.

  Examples of petroleum hydrocarbons include light isoparaffin, light liquid isoparaffin, squalane, paraffin, liquid paraffin, liquid isoparaffin, petrolatum, microcrystalline wax, and the like.

  Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, isostearic acid, 12-hydroxystearic acid, and undecylenic acid.

  Examples of the higher alcohol include alcohols having 10 to 25 carbon atoms such as lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, oleyl alcohol, behenyl alcohol, and cetostearyl alcohol.

  Examples of silicone include dimethyl silicone, cyclic silicone, polyether-modified silicone, amino-modified silicone, polyglycerin-modified silicone, and methylphenyl silicone.

  The content of the oil component is not particularly limited and can be appropriately adjusted. From the viewpoint that the effects of the present invention can be more reliably exhibited, the content of the oil component is, for example, 1 to 15% by mass, preferably 2 to 10% by mass, with respect to 100% by mass of the second agent for oxidative hair dyeing. More preferably, it is 3-7 mass%.

  The stabilizer is not particularly limited, and examples thereof include phenacetin, sodium stannate, ethylene glycol phenyl ether, 8-oxyquinoline, phosphoric acid, 1-hydroxyethane-1,1-diphosphonic acid and salts thereof, dibutylhydroxy Examples include toluene, benzoic acid or a salt thereof, salicylic acid or a salt thereof, and phenoxyethanol.

  The pH adjuster is not particularly limited, and examples thereof include acids such as citric acid, phosphoric acid, malic acid, tartaric acid, and lactic acid; salts such as sodium citrate and phosphoric acid 2Na; aqueous ammonia, monoethanolamine, and triethanol And alkaline agents such as amine, potassium hydroxide and sodium hydroxide.

  The second agent for oxidative hair dyeing according to the present invention is particularly suitable for dyeing gray hair because it can darken even white hair and can further reduce the adverse effect on the feel of hair.

2. Oxidative hair dye kit The present invention comprises an oxidation hair dye kit (herein referred to as “oxidative hair dye of the present invention”) comprising the second agent for oxidation hair of the present invention and the first agent for oxidation hair dye. Kit ”may also be indicated.).

  The first agent for oxidative hair dye, which is a target to be combined with the second agent for oxidative hair dye of the present invention, is not particularly limited, and it is possible to employ the first agent for oxidative hair dye appropriately mixed with known components. it can.

  The first agent for oxidative hair dye usually contains an oxidative dye, an alkali agent, an oil component, a surfactant, a solvent and the like.

  Examples thereof include a dye intermediate that develops color by polymerization alone, or a combination of the above-described coupler with a dye intermediate that develops color after being combined with a coupler. The dye intermediate is not particularly limited as long as it is used in a conventionally known first composition for hair dyeing. For example, p-phenylenediamine, toluene-2,5-diamine, toluene-3, 4-diamine, o-aminophenol, p-aminophenol, p-methylaminophenol and the like can be mentioned.

  Moreover, as a coupler combined with a dye intermediate as needed, for example, 2,4-diaminophenoxyethanol hydrochloride, m-phenylenediamine, 2,6-diaminopyridine, 5-aminoorthocresol, m-aminophenol, α -Naphthol, hydroquinone, resorcin, catechol and the like are generally used.

  The alkaline agent is not particularly limited as long as it is used in the conventionally known first composition for hair dyeing, and examples thereof include aqueous ammonia, monoethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide. Etc.

  In the oxidative hair dye kit of the present invention, the second agent for oxidative hair and the first agent for oxidative hair of the present invention are housed in separate containers.

3. Hair dyeing method The present invention relates to a hair dyeing method (herein referred to as “the hair dye of the present invention”), which comprises applying the second agent for oxidizing hair of the present invention and the first agent for oxidizing hair to the hair. It may be indicated as “method”).

  The mode of application is not particularly limited as long as the second agent for oxidizing hair and the first agent for oxidizing hair of the present invention are in a mixed state on the hair. For example, an aspect in which the second agent for oxidative hair dyeing and the first agent for oxidative hair dyeing of the present invention are mixed and then applied to the hair, or the first agent for oxidative hair dyeing is applied to the hair, and then the present invention is applied. The aspect which apply | coats the 2nd agent for oxidative hair dyeing to hair is mentioned.

  The mixing ratio of the first agent composition for hair dyeing and the second agent composition for hair dyeing may be adjusted according to the desired brightness and color. For example, the mass ratio is 1: 1 to 1:10. Can be about.

  After the application, it is usually left for a certain time (for example, 15 to 60 minutes) so that the reaction necessary for oxidative hair dyeing occurs sufficiently. Then, it is desirable to wash away excess components by washing with shampoo or the like and dry.

  EXAMPLES The present invention will be described in detail below based on examples, but the present invention is not limited to these examples.

(1) Preparation of second agent for oxidative hair The second agent for oxidative hair was prepared according to the formulation shown in Tables 1 to 3 described later. The preparation procedure of Example 1 is as follows. First, alkyltrimethylammonium chloride was added to purified water, heated and dissolved with stirring, and maintained at 80 ° C. (this was used as an aqueous phase solution). On the other hand, POE (20) POP (4) cetyl ether, dicetyl phosphate, isodecyl pivalate and cetostearyl alcohol were mixed, heated and dissolved with stirring, and maintained at 80 ° C. (this was used as an oil phase solution) ). Next, the oil phase solution was added while stirring the aqueous phase solution. After adding the oil phase solution, the mixture was naturally cooled with stirring, and when it was cooled to 40 ° C., a hydroxyethane diphosphonic acid solution (60% aqueous solution) and a hydrogen peroxide solution (35% aqueous solution) were added. Further, the mixture was naturally cooled with stirring, and when it was cooled to room temperature, the stirring was stopped, and the obtained composition was used as each example of the oxidative hair dye second agent. Other examples were also prepared in a similar manner. In Tables 1 to 3, the numerical values related to the components indicate the mass% of the components with respect to 100 mass% of the second agent for oxidative hair dyeing, and the “total 100” means the total of each component other than purified water. It shows that the amount of purified water was added to the amount to reach 100% by mass.

(2) Preparation of first agent for oxidative hair dyeing First agent for oxidative hair dyeing was prepared according to the formulation shown in Table 4 described later. The preparation procedure is as follows. First, alkyltrimethylammonium chloride was added to purified water, and heated and dissolved while stirring. Thereafter, paraphenylenediamine, resorcin, and disodium edetate were added and maintained at 80 ° C. (this is used as an aqueous phase solution). On the other hand, POE (25) cetyl ether, paraffin, and cetanol were mixed, heated and dissolved with stirring, and maintained at 80 ° C. (this was used as an oil phase solution). Next, the oil phase solution was added while stirring the aqueous phase solution. After adding the oil phase solution, it was naturally cooled with stirring, and when it was cooled to 35 ° C., aqueous ammonia (25% aqueous solution) was added. Further, the mixture was naturally cooled with stirring, and the stirring was stopped when it was cooled to room temperature, and the obtained composition was used as a production example of the first agent for oxidative hair dyeing. In Table 4, the numerical value regarding the component indicates the mass% of the component with respect to 100 mass% of the first agent for oxidative hair dyeing, and “total 100” means the total amount of each component other than purified water. The amount of purified water was added to reach 100% by mass.

(3) Preparation of shampoo composition A shampoo composition was prepared according to the formulation shown in Table 5 below. The preparation procedure is as follows. First, polyoxyethylene alkyl (12,13) ether sulfate sodium (3EO), coconut oil fatty acid amide propyl betaine solution, and cocamidomethyl MEA are added to purified water, dissolved by heating and kept at 80 ° C. did. The mixture was naturally cooled with stirring, and when cooled to 40 ° C., citric acid and methylisothiazolinone were added. Further, the mixture was naturally cooled with stirring, and when it was cooled to room temperature, stirring was stopped, and the resulting composition was used as a production example of a shampoo composition. In Table 5, the numerical value regarding the component indicates the mass% of the component with respect to 100 mass% of the shampoo composition, and “set to 100” means that the total amount of each component other than purified water is the purified water. It shows that it was made to become 100 mass% by adding the amount.

(4) Hair dyeing treatment In the above-mentioned “(1) Preparation of second agent for oxidative hair” 5 g of second agent for oxidative hair prepared in “(1) Preparation of second agent for oxidative hair” and “(2) Preparation of first agent for oxidative hair” 5 g of the prepared first agent for oxidative hair dyeing was mixed until uniform. Apply the brush to which the resulting mixture is adhered to the front and back of the hair bundle that has been spread in the shape of a fan of 1 g of white hair (Mathai Japan, Shigle Tuft) and leave it at 30 ° C for 30 minutes. The hair was dyed. Thereafter, the hair bundle was washed with water, and the washed hair bundle was washed once with the shampoo composition prepared in “(3) Preparation of shampoo composition” and dried.

(5) Evaluation of Ease of Mixing The second agent for oxidative hair dye prepared in “(1) Preparation of second agent for oxidative hair dyeing” is a ready-made container for the second agent for hair dyeing [Number Three, Inc. No. 3 rechroma second agent container (1.2 L)] made up to 8 minutes. Next, 80 g of the second agent for oxidative hair dyeing is squeezed out from this container and mixed with 80 g of the first agent for oxidative hair dyeing prepared in “(2) Preparation of the first agent for oxidative hair dyeing” until uniform. The work was carried out by five specialized panelists. Evaluation is performed in 5 stages (5 points: very easy to mix, 4 points: easy to mix, 3 points: neither can be said, 2 points: difficult to mix, 1 point: very difficult to mix) The panelists were scored and ranked according to the following criteria. Those rated as ◎ and ○ are acceptable as products. In addition, in this evaluation, a score becomes high, so that time until it mixes uniformly on fixed stirring conditions is short. The results are shown in Tables 1-3.
<Standard>
A: The total score is 20 points or more. B: The total score is 15 points or more and less than 20. Δ: The total score is 10 points or more and less than 15 points. X: The total score is less than 10 points.

(6) Color difference measurement The color difference of the hair | bristle bundle processed by said "(4) hair dyeing process" was measured with Nippon Denshoku Industries Co., Ltd. spectroscopic colorimeter "SE-2000". The measured L values are shown in Tables 1-3. The smaller the L value is, the deeper the hair bundle is dyed (that is, the better the dyeability). The results are shown in Tables 1-3.

(7) Evaluation of dyeability The sensory evaluation was performed by five professional panelists on the dyeing condition (darkness) of the hair bundle treated in the above "(4) Hair dyeing". Evaluation is made in 5 stages (5 points: very good, 4 points: good, 3 points: normal, 2 points: bad, 1 point: very bad) Ranked by. Those rated as ◎ and ○ are acceptable as products. The results are shown in Tables 1-3.
<Standard>
A: Total score of 20 points or more B: Total score of 15 points or more and less than 20 Δ: Total score of 10 points or more and less than 15 points ×: Total score of less than 10 points

(8) Evaluation of touch Sensory evaluation was performed by five professional panelists on the touch when the hand was passed through the hair bundle processed in the above "(4) Hair dyeing treatment". Evaluation is 5 grades (5 points: no catches can be confirmed, 4 points: no catches can be confirmed, 3 points: no catches can be confirmed, 2 points: catches can be confirmed, 1 point: clear catches The total score of each panel was summed up and ranked according to the following criteria. Those rated as ◎ and ○ are acceptable as products. The results are shown in Tables 1-3.
<Standard>
◎: Total score is 20 points or more ○: Total score is 15 points or more and less than 20 points,
Δ: Total score is 10 or more and less than 15 ×: Total score is less than 10 points.

Claims (7)

(A-1) a nonionic surfactant;
(B) a diester of an aliphatic alcohol having 8 to 30 carbon atoms;
(C) pivalate Isodeshi le;
The 2nd agent for oxidative hair dye containing. The second agent for oxidative hair dyeing according to claim 1, wherein the aliphatic alcohol has 14 to 18 carbon atoms. The content of the phosphoric acid diester (B) is 0.005 to 2% by mass with respect to 100% by mass of the second agent for oxidative hair dyeing, and the second for oxidative hair dyeing according to claim 1 or 2. Agent. Furthermore, the 2nd agent for oxidative hair dyeing in any one of Claims 1-3 containing (A-2) cationic surfactant. The second agent for oxidative hair dyeing according to any one of claims 1 to 4 , which is for white hair dyeing. The oxidative hair dye kit containing the 2nd agent for oxidative hair dyeing in any one of Claims 1-5 , and the 1st agent for oxidative hair dyeing. A hair dyeing method comprising applying the second agent for oxidative hair dyeing and the first agent for oxidative hair dyeing according to any one of claims 1 to 5 to hair.