JP7448197B2 - First agent composition for hair dyeing or bleaching - Google Patents

Description

The present invention relates to a first agent composition for hair dyeing or bleaching. More specifically, it is a first part composition for hair dyeing or bleaching that is used by mixing with a second part composition for hair dyeing or bleaching before use, which has excellent stability at high temperatures and when stored at low temperatures. The present invention relates to a first part composition for hair dyeing or bleaching that has little change in viscosity even when changing colors and does not affect dischargeability from a container.

With the rise in fashion consciousness in recent years, hair coloring agents that allow you to easily change your hair color have become popular among both men and women. There are various types of hair coloring agents, such as permanent hair dyes, semi-permanent hair dyes, bleaching agents, and temporary coloring agents, which are used depending on each need. Among them, permanent hair dyes and bleaching agents have excellent hair dyeing and bleaching effects, and are hair coloring agents that are currently used by many people due to this property.

Permanent hair dyes and bleaching agents include a first part composition containing an alkaline agent and a second part composition containing an oxidizing agent such as hydrogen peroxide, which may or may not contain an oxidizing dye. Formulas are widely used. These can be applied by mixing the first part composition and second part composition for hair dyeing or bleaching in a tray or bottle-shaped container immediately before use, and then applying the mixture onto the hair, or by using a brush, etc. There are methods such as mixing on the hair.

The first and second agent compositions for hair dyeing or bleaching should be kept in various containers (polymer containers, aluminum tube containers, polytube containers) until they are used, as the alkali agent and oxidizing agent cause an oxidation-reduction reaction when mixed. containers, aerosol containers, pouch containers, etc.). Therefore, the viscosity of the first part composition and the second part composition for hair dyeing or bleaching is appropriately set in consideration of dischargeability from the container. In the case of emulsion compositions, higher alcohols having 12 to 24 carbon atoms are often used to adjust the viscosity, and higher alcohols also have the effect of increasing emulsion stability.

Since the first agent composition for hair dyeing or bleaching containing an oxidative dye or an alkaline agent has a high pH, its stability over time tends to decrease more easily than a general emulsion composition. In addition, during transportation and storage, there is a possibility that the product will be placed in harsh environments, especially in the summer, when temperatures can reach around 50 degrees Celsius (meaning high temperature in this invention) due to the influence of air temperature and reflected heat. In such a high temperature environment, coalescence and creaming are promoted and separation is likely to occur. Therefore, emulsion stability at high temperatures is required, and several first-part compositions for hair dyeing or bleaching have been disclosed so far (Patent Document 1 and Patent Document 2).

Japanese Patent Application Publication No. 2016-121104 Japanese Patent Application Publication No. 2019-064949

By the way, the general room temperature when using air conditioning equipment is around 20°C, but in the middle of winter when heating equipment is not used, the room temperature can drop to 5°C (meaning low temperature in the present invention). Therefore, the first agent composition for hair dyeing or bleaching may be stored for a long period of time under such an environment.

As described above, the first part composition for hair dyeing or bleaching contains a higher alcohol having 12 to 24 carbon atoms from the viewpoint of viscosity adjustment and emulsion stability. However, the crystallization of higher alcohols having 12 to 24 carbon atoms is promoted in low-temperature environments, and the viscosity of the emulsified composition increases over time. (including co-discharging properties with the second decolorizing agent composition). Therefore, there is a need for a first part composition for hair dyeing or bleaching that has excellent stability at high temperatures, shows little change in viscosity even when stored at low temperatures, and does not affect dischargeability from a container.

However, in all of the patent documents, although the stability at high temperatures was studied, the dischargeability from the container during low temperature storage was not considered.

The present invention has been made in view of the above problems, and is a first part composition for hair dyeing or bleaching, which is used by mixing with a second part composition for hair dyeing or bleaching, at the time of use. It is an object of the present invention to provide a first part composition for hair dyeing or bleaching that has excellent stability at high temperatures, shows little change in viscosity even when stored at low temperatures, and does not affect dischargeability from a container.

The present inventor has added moles of (A) an alkaline agent and (B) ethylene oxide to a first part composition for hair dyeing or bleaching, which is used by mixing with a second part composition for hair dyeing or bleaching. By containing a polyoxyethylene alkyl ether type nonionic surfactant having an ethylene chain of 1 in number and (C) a polyoxyethylene alkyl ether type nonionic surfactant other than the component (B), the above problem can be solved. The present inventors have found that the problem can be solved, and have completed the present invention.

That is, the present invention provides a first part composition for hair dyeing or bleaching that is used by mixing with a second part composition for hair dyeing or bleaching before use,
(A) Alkaline agent (B) Polyoxyethylene alkyl ether type nonionic surfactant having an ethylene chain with an added mole number of ethylene oxide (C) Polyoxyethylene alkyl ether type nonionic surfactant other than the component (B) above The present invention provides a first agent composition for hair dyeing or bleaching, which is characterized by containing a surfactant.

The first part composition for hair dyeing or bleaching of the present invention is a first part composition for hair dyeing or bleaching that is used by mixing with the second part composition for hair dyeing or bleaching at the time of use, It has excellent stability at high temperatures, shows little change in viscosity even when stored at low temperatures, and does not affect dischargeability from containers.

The present invention will be explained in detail below.

Note that all units indicating the content are mass % unless otherwise specified.

In addition, high temperature in this invention means 50 degreeC.

Note that the low temperature in the present invention means 5°C.

The first part composition for hair dyeing or bleaching of the present invention will be explained.

The first agent composition for hair dyeing in the present invention contains an oxidative dye from the viewpoint of hair dyeing properties.

The oxidation dye used in the present invention is not particularly limited, but includes, for example, para-phenylene diamine, toluene-2,5-diamine, ortho-aminophenol, para-aminophenol, meta-aminophenol, 5-aminoorthocresol, 2,6 -Diaminopyridine, 2,4-diaminophenoxyethanol, 1-naphthol, resorcinol, and their salts, etc., and others listed in the "Quasi-drug Ingredient Standards 2006 Consolidated Edition" (published in November 2013, Yakuji Nipposha) Those listed can also be used as appropriate. It can contain one or more of these.

The content of the oxidation dye used in the present invention is not particularly limited, but from the viewpoint of hair dyeing properties, it is preferably 0.2 to 10%, more preferably 1 to 8%, and even more preferably 2 to 6%. When the content of the oxidation dye is less than 0.2%, there is a possibility that sufficient hair dyeing properties may not be obtained. Further, when the content of the oxidation dye exceeds 10%, it is difficult to expect further improvement in hair dyeing properties.

In addition, the content of oxidized dye in the present invention means the content of oxidized dye in terms of pure content. For example, for oxidative dyes in the form of salts such as 2,4-diaminophenoxyethanol hydrochloride, it means the content in terms of mass in the non-salt form.

The first part composition for hair dyeing or bleaching in the present invention contains (A) an alkaline agent from the viewpoint of hair dyeing and bleaching properties.

The component (A) used in the present invention is not particularly limited, but includes, for example, ammonia, alkanolamines, organic amines, alkali metal or alkaline earth metal hydroxides, carbonates, hydrogen carbonates, and metasilicates. , phosphates, basic amino acids, etc., and can contain one or more of these.

Specific examples of the alkanolamine used in the present invention include monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, and the like.

Specific examples of the organic amine used in the present invention include 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, morpholine, and guanidine.

Specific examples of the alkali metal or alkaline earth metal hydroxide used in the present invention include lithium hydroxide, sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, etc. .

Specific examples of the basic amino acids used in the present invention include arginine, lysine, histidine, and the like.

Specific examples of the carbonate used in the present invention include sodium carbonate, potassium carbonate, ammonium carbonate, and the like.

Specific examples of the hydrogen carbonate used in the present invention include sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium hydrogen carbonate, and the like.

Specific examples of the metasilicate used in the present invention include sodium metasilicate, potassium metasilicate, ammonium metasilicate, and the like.

Specific examples of the phosphates used in the present invention include sodium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, tripotassium phosphate, Examples include ammonium dihydrogen acid, diammonium hydrogen phosphate, and triammonium phosphate.

The component (A) used in the present invention is preferably ammonia or alkanolamine from the viewpoint of hair dyeing and bleaching properties.

The content of the component (A) used in the present invention is not particularly limited, but from the viewpoint of hair dyeing and bleaching properties, it is preferably 0.5 to 8%. When the content of the component (A) is less than 0.5%, there is a possibility that sufficient hair dyeing and bleaching properties may not be obtained. Further, when the content of the component (A) exceeds 8%, it is difficult to expect further improvement in hair dyeing and bleaching properties.

From the viewpoint of stability at high temperatures, the first agent composition for hair dyeing or bleaching in the present invention is a polyoxyethylene alkyl ether type nonionic compound having an ethylene chain in which the number of moles of (B) ethylene oxide added is 1. Contains surfactant.

The component (B) used in the present invention is not particularly limited, but includes, for example, polyoxyethylene (hereinafter referred to as POE) (1) caprylyl ether, POE (1) undecyl ether, POE (1) lauryl ether , POE (1) tridecyl ether, POE (1) myristyl ether, POE (1) pentadecyl ether, POE (1) cetyl ether, POE (1) palmitoyl ether, POE (1) heptadecyl ether, POE (1) Stearyl ether, POE (1) isostearyl ether, POE (1) oleyl ether, POE (1) linoleyl ether, POE (1) nonadecyl ether, POE (1) arachidyl ether, POE (1) henicosyl ether , POE (1) behenyl ether, POE (1) erucyl ether, POE (1) lignoceryl ether, POE (1) ceryl ether, POE (1) montanyl ether, etc., and these include one or more types. can contain. Among these, from the viewpoint of stability at high temperatures, POE (1) cetyl ether, POE (1) stearyl ether, and POE (1) behenyl ether are preferred.

The content of the component (B) used in the present invention is not particularly limited, but from the viewpoint of stability at high temperatures, it is preferably 1 to 25%, more preferably 2 to 20%. If the content of the component (B) is less than 1%, or if the content of the component (B) exceeds 25%, the stability at high temperatures may decrease.

The first part composition for hair dyeing or bleaching in the present invention contains (C) a polyoxyethylene alkyl ether type nonionic surfactant other than the component (B) from the viewpoint of stability at high temperatures. .

The component (C) used in the present invention is not particularly limited, but POE (5) decyl ether, POE (6) decyl ether, POE (2) lauryl ether, POE (3) lauryl ether, POE (4) Lauryl ether, POE (5) lauryl ether, POE (7) lauryl ether, POE (8) lauryl ether, POE (9) lauryl ether, POE (12) lauryl ether, POE (15) lauryl ether, POE (19) lauryl Ether, POE (21) lauryl ether, POE (25) lauryl ether, POE (30) lauryl ether, POE (40) lauryl ether, POE (3) tridecyl ether, POE (5) tridecyl ether, POE (7) Tridecyl ether, POE (8) tridecyl ether, POE (9) tridecyl ether, POE (10) tridecyl ether, POE (12) tridecyl ether, POE (15) tridecyl ether, POE (20) tridecyl Ether, POE (2) cetyl ether, POE (5) cetyl ether, POE (7) cetyl ether, POE (8) cetyl ether, POE (10) cetyl ether, POE (13) 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 (150) cetyl ether, POE (2) stearyl ether, POE (3) stearyl ether, POE (4) stearyl ether, POE (5) stearyl ether, POE (7) stearyl ether, POE (10) stearyl ether, POE (11) stearyl ether, POE (15) stearyl ether, POE (20) stearyl ether, POE (30) stearyl ether, POE (40) stearyl ether, POE (50) stearyl ether, POE (100) stearyl ether, POE (8) isostearyl ether, POE (12) isostearyl ether, POE (16) isostearyl ether, POE (2) oleyl ether, POE (5) oleyl ether, POE (7) oleyl ether, POE (9) oleyl ether, POE (10) oleyl ether, POE (15) oleyl ether, POE (20) oleyl ether, POE (50) oleyl ether, POE (5) behenyl ether, POE (10) behenyl ether, POE (20), behenyl ether, POE (30) behenyl ether, etc., and these are one type. Or it can contain two or more kinds.

From the viewpoint of stability at high temperatures, the component (B) used in the present invention preferably contains two or more kinds, and the component (B) has a polyethylene chain with an added mole number of ethylene oxide (C1) of 20 or less. ) Contains a POE alkyl ether type nonionic surfactant other than the component (C2) and a POE alkyl ether type nonionic surfactant other than the component (B) having a polyethylene chain with an added mole number of ethylene oxide exceeding 20. is more preferable.

The content of the component (C) used in the present invention is not particularly limited, but from the viewpoint of stability at high temperatures, it is preferably 0.15 to 13.5%, more preferably 0.6 to 12%. . If the content of the component (C) is less than 0.15%, or if the content of the component (C) exceeds 13.5%, the stability at high temperatures may decrease.

In the first part composition for hair dyeing or bleaching according to the present invention, the content of higher alcohol having 12 to 24 carbon atoms should be 2% or less from the viewpoint of changes in ejectability from the container during low-temperature storage. It is preferably 1% or less, more preferably 1% or less, and even more preferably substantially free. Note that "not substantially contained" means that it is not intentionally contained, and also includes cases where it is unavoidably contained.

The higher alcohol having 12 to 24 carbon atoms is not particularly limited, but includes, for example, cetyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, myristyl alcohol, arachidyl alcohol, behenyl alcohol, and 2-decyl alcohol. Examples include tetradecanol, and one or more of these may be contained.

The hair dyeing or bleaching composition of the present invention may contain an oily component from the viewpoint of imparting gloss to the hair when rinsing and after drying.

The oily component is not particularly limited, but includes, for example, hydrocarbons, fats and oils, waxes, higher fatty acids, alkyl glyceryl ethers, esters, silicones, etc., and one or more of these can be contained.

Specific examples of the hydrocarbons include liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, squalane, microcrystalline wax, vaseline, α-olefin oligomer, polybutene, ceresin, and the like.

Specific examples of the oils and fats include olive oil, camellia oil, shea oil, sunflower oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, macadamian nut oil, castor oil, coconut oil, evening primrose oil, avocado oil, Peach kernel oil, rosehip oil, argan oil, orange oil, ylang ylang flower oil, kyonin oil, corn oil, pomegranate seed oil, sesame oil, spearmint oil, camellia seed oil, mentha oil, Hypophaeramnoides seed oil, Nigella sativa Seed oil, amanita oil, bergamot seed oil, hemachi seed oil, mink oil, meadowfoam oil, eucalyptus oil, chacha oil, lemon fruit oil, rosemary oil, sunflower oil, fallen raw oil, cottonseed oil, pistachio oil, Examples include kukui nut oil.

Specific examples of the wax include beeswax, candelilla wax, carnauba wax, jojoba oil, rice bran wax, shellac, and lanolin.

Specific examples of the higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, isostearic acid, undecylenic acid, and lanolic acid.

Specific examples of the alkyl glyceryl ether include ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, batyl alcohol, chimyl alcohol, serakyl alcohol, isostearyl glyceryl ether, diisononyl ether, and the like.

Specific examples of the esters include isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, myristic acid. Decyl, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, cetyl ricinoleate, isostearyl laurate, isotridel myristate, 2-hexyldecyl myristate, isostearyl myristate , 2-octyldodecyl myristate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, 2-hexyldecyl stearate, isodecyl oleate, isodecyl oleate, 2-oleate -Octyldodecyl, 2-octyldodecyl oleate, 2-octyldodecyl linoleate, ethyl isostearate, isopropyl isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isostearic acid Hexyl, ethylene glycol di-2-ethylhexanoate, ethylene glycol dioleate, propylene glycol dicaprylate, di(caprylic/capric) propylene glycol, propylene glycol dicaprate, neopentyl glycol dicaprylate, neo di-2-ethylhexanoate Pentyl glycol, glyceryl tricaprylate, glyceryl tri-2-ethylhexanoate, glyceryl tri(caprylic/capric acid), glyceryl triundecylate, glyceryl triisopalmitate, glyceryl triisostearate, trimethylolpropane tri-2-ethylhexanoate, Trimelylpropane isostearate, pentaerythritol tetra-2-ethylhexanoate, pentaerythritol tetramyristate, pentaerythritol tetraisostearate, 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, iso-2-ethylhexanoate Stearyl, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearyl isostearate, 2-octyl isostearate, etc. Can be mentioned.

Specific examples of the silicone include dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, methylcyclopolysiloxane, alcohol-modified silicone, alkyl-modified silicone, and amino-modified silicone. Examples include silicone and polyether-modified silicone.

The content of the oily component is not particularly limited, but is preferably 0.1 to 15% from the viewpoint of the stickiness of the hair after dyeing. If the content of the oily component is less than 0.1%, there is a risk that the hair will not be sufficiently rinsed with fingers and the hair will not have a shiny feel after drying. If the content of the oily component exceeds 15%, there is a risk that the hair will become sticky after being dyed.

The hair dyeing or bleaching composition of the present invention may contain a polyhydric alcohol from the viewpoint of easy finger compatibility during rinsing.

The polyhydric alcohol is not particularly limited, but includes, for example, glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butylene glycol, 1,3 -Propanediol, pentylene glycol, ethylhexylglycerin, sorbitol, xylitol, maltitol, erythritol, mannitol, lactitol, etc., and one or more of these can be contained.

The content of the polyhydric alcohol is not particularly limited, but is preferably 0.5 to 20% from the viewpoint of ease of rinsing. When the content of the polyhydric alcohol is less than 0.5%, there is a possibility that sufficient finger penetration during rinsing may not be obtained. If the content of the polyhydric alcohol exceeds 20%, the emulsion stability may decrease.

The composition for hair dyeing or bleaching in the present invention may contain a cationic surfactant from the viewpoint of easy running of hair through fingers after drying.

The cationic surfactant is not particularly limited, but includes, for example, lauryltrimethylammonium chloride, dicokoyldimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, distearyldimethylammonium chloride, and bromide. Examples include cetyltrimethylammonium, stearyltrimethylammonium bromide, and behenyltrimethylammonium bromide, and one or more of these may be contained.

The content of the cationic surfactant is not particularly limited, but is preferably 0.5 to 5% from the viewpoint of ease of running hair through the hair after drying. If the content of the cationic surfactant is less than 0.5%, there is a risk that the hair will not be able to be run through the hair sufficiently after drying. If the content of the cationic surfactant exceeds 5%, the stability of emulsification may decrease.

In addition to the above-mentioned ingredients, the first part composition for hair dyeing or bleaching of the present invention may contain ordinary cosmetics, quasi-drugs, and pharmaceuticals other than the above-mentioned ingredients to the extent that the effects of the present invention are not impaired. Various ingredients used in products such as direct dyes, acid dyes, basic dyes, HC dyes, surfactants, nonionic polymers, amphoteric polymers, cationic polymers, anionic polymers, humectants, thickeners, etc. agents, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, sequestering agents, antioxidants, botanical extracts, crude drug extracts, vitamins, preservatives, pigments, pigments, powders, pH adjusters, ultraviolet rays It can contain one or more selected from absorbents, fragrances, and the like. However, the present invention is not limited to these examples.

The dosage form of the first part composition for hair dyeing or bleaching in the present invention is preferably cream-like, emulsion-like, or gel-like from the viewpoint of applicability to hair and spreadability.

The viscosity of the first part composition for hair dyeing or bleaching in the present invention is 3,000 ml at 20°C from the viewpoint of miscibility with the second part composition for hair dyeing or bleaching and application to hair. 000 to 100,000 mPa·s is preferable, and 10,000 to 70,000 mPa·s is more preferable. If the viscosity of the first part composition for hair dyeing or bleaching is less than 3,000 mPa·s, the emulsion stability may be lowered. In addition, if the viscosity of the first part composition for hair dyeing or bleaching exceeds 100,000 mPa・s, the miscibility with the second part composition for hair dyeing or bleaching and the applicability to the hair may decrease. be.

The viscosity of the first part composition for hair dyeing or bleaching in the present invention at 20°C is determined by measuring the viscosity of the first part composition for hair dyeing or bleaching prepared by a conventional method in a 140 g sample. Fill a bottle (Food 140: Daiichi Glass Co., Ltd.) with 120 g, let it stand at 20°C for one day, and then adjust the temperature. Co., Ltd.) for 1 minute using a No. 4 rotor at a rotation speed of 12 rpm when the viscosity is less than 50,000 mPa·s, and at a rotation speed of 6 rpm when the viscosity is 50,000 mPa·s or more.

The pH of the first part composition for hair dyeing or bleaching in the present invention is preferably 9 to 12 at 20° C. from the viewpoint of hair dyeing and bleaching properties.

The pH of the first part composition for hair dyeing or bleaching in the present invention at 20°C is as follows: After allowing it to stand for one day and controlling its temperature, it was measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

Containers in which the first agent composition for hair dyeing or bleaching used in the present invention is filled and stored are not particularly limited, but include polyethylene containers, aluminum tube containers, polytube containers, aerosol containers, pouch containers, and the like.

Dischargeability from a container in the present invention specifically means the ease with which the first part composition for hair dyeing or bleaching is discharged from the container. For example, it refers to ease of dispensing from an aluminum tube container, ease of dispensing from a pouch container, and in the case of an aerosol form, the amount of discharge over a certain period of time and the ability to discharge simultaneously with a second agent composition for hair dyeing or bleaching. It is something to do.

The second agent composition for hair dyeing or bleaching of the present invention will be explained.

The second agent composition for hair dyeing or bleaching in the present invention contains an oxidizing agent from the viewpoint of hair dyeing and bleaching properties.

The oxidizing agent used in the present invention is not particularly limited, but includes, 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, hydrogen peroxide adducts of peroxide salts, hydrogen peroxide adducts of phosphates, peroxide of pyrophosphates Examples include hydrogen adducts, sodium bromate, etc., and these may contain one or more types. Among these, hydrogen peroxide is preferred from the viewpoint of hair dyeing and bleaching properties.

The content of the oxidizing agent used in the present invention is not particularly limited, but from the viewpoint of hair dyeing and bleaching properties, it is preferably 2 to 6%. If the content of the oxidizing agent is less than 2%, sufficient hair dyeing and bleaching properties may not be obtained. Furthermore, if the content of the oxidizing agent exceeds 6%, there is a risk that the hair will become stiff.

The second agent composition for hair dyeing or bleaching in the present invention may contain an acid, a sequestering agent, and a pH adjuster from the viewpoint of improving the stability of the oxidizing agent.

The acids, sequestering agents, and pH adjusters include, but are not particularly limited to, phosphoric acid, edetic acid, hydroxyethane diphosphonic acid and their salts, alkali metal or alkaline earth metal hydroxides, and the like. may contain one or more types.

In addition to the above-mentioned ingredients, the second agent composition for hair dyeing or bleaching of the present invention may contain ordinary cosmetics, quasi-drugs, and pharmaceuticals other than the above-mentioned ingredients to the extent that the effects of the present invention are not impaired. Various ingredients used in products such as surfactants, nonionic polymers, amphoteric polymers, cationic polymers, anionic polymers, oily ingredients, polyhydric alcohols, humectants, thickeners, medicinal ingredients, proteins, etc. Examples include derivatives, hydrolyzed proteins, amino acids, plant extracts, crude drug extracts, vitamins, preservatives, fragrances, etc., and one or more of these may be contained. However, the present invention is not limited to these examples.

The dosage form of the second part composition for hair dyeing or bleaching in the present invention is preferably cream-like, emulsion-like, or gel-like from the viewpoint of applicability to hair and spreadability.

The viscosity of the second part composition for hair dyeing or bleaching in the present invention is determined to be 3 at 20°C from the viewpoint of miscibility with the first part composition for hair dyeing or bleaching and applicability to hair. ,000 to 100,000 mPa·s is preferable, and 7,000 to 50,000 mPa·s is more preferable.

The viscosity at 20°C of the second part composition for hair dyeing or bleaching in the present invention is determined by adding the first part composition for hair dyeing prepared by a conventional method to a sample bottle with a capacity of 140 g (foodstuff). 140: Daiichi Glass Co., Ltd.) was filled with 120 g, left at 20°C for 1 day to control the temperature, and then placed in a B-type viscometer with helical stand (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.). Measurements were made using a No. 4 rotor for 1 minute at a rotation speed of 12 rpm when the viscosity was less than 50,000 mPa·s, and at a rotation speed of 6 rpm when the viscosity was 50,000 mPa·s or more.

The pH of the second agent composition for hair dyeing or bleaching in the present invention is preferably 1.5 to 3.5 at 20° C. from the viewpoint of stability of the oxidizing agent.

The pH of the second part composition for hair dyeing or bleaching in the present invention at 20°C is as follows. After allowing it to stand for one day and controlling its temperature, it was measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

Containers in which the second agent composition for hair dyeing or bleaching used in the present invention is filled and stored are not particularly limited, but include polyethylene containers, aluminum tube containers, polytube containers, aerosol containers, pouch containers, and the like.

The mixing mass ratio of the first part composition and the second part composition (first part: second part) in the present invention is not particularly limited, but from the viewpoint of hair dyeing and bleaching properties, it is 1:5 to 5: 1 is preferred, and 1:2 to 2:1 is more preferred.

EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited only to these Examples.

The evaluation test shown in this specification was conducted while changing the components and their contents contained in the first agent composition for hair dyeing or bleaching. All units indicating the content of each component are mass %, and were prepared by a conventional method.
<Stability at high temperatures>
In the evaluation test related to "stability at high temperatures" shown in this specification, a sample bottle with a capacity of 140 g (140 g of the first part composition for hair dyeing or bleaching prepared by a conventional method) : Daiichi Glass Co., Ltd.) was filled with 120 g, and then stored at 50° C., and the external appearance was visually confirmed and evaluated as shown below.

<Evaluation criteria for stability at high temperatures>
◎: No change was observed in the composition even after 3 months or more.
○: Separation or water spouting was confirmed after less than 3 months.
△: Separation or water spouting was observed after less than 2 months.
×: Separation or water spouting was observed in less than 1 month.

<Change in dischargeability from container during low temperature storage>
In the evaluation test related to "change in ejectability from a container during low-temperature storage" shown in this specification, the first agent composition for hair dyeing or bleaching, prepared by a conventional method, was placed in an aluminum tube ( Manufactured by Takeuchi Press Kogyo Co., Ltd., outer diameter: 25.2 mm, inner diameter: 24.5 mm, under-shoulder dimension: 130 mm, diameter: 6.7 mm both length and width, inner surface coat: TPL-418, lining agent: 40 g filled in Hi-Lap K). After that, the first part composition for hair dyeing or bleaching stored at 5°C for 30 days and the first part composition for hair dyeing or bleaching stored for 30 days at 20°C were placed in aluminum tubes. The difference in ejectability of the first agent composition for hair dyeing or bleaching at storage temperatures of 5°C and 20°C was determined by 10 panelists as follows: The evaluation criteria were as follows, and the total score was used as the evaluation result.

<Change in dischargeability from container during low temperature storage>
No difference in discharge performance between 5°C and 20°C: 3 points Slight difference in discharge performance between 5°C and 20°C: 2 points No difference in discharge performance between 5°C and 20°C: 1 point

<Change in dischargeability from container during low temperature storage>
◎: 25 points to 30 points 〇: 21 points to 25 points △: 16 points to 20 points ×: 10 points to 15 points

In Examples 1 to 12 of Table 1, even if the type and content of the component (A) and the component (B) were changed, compared with Comparative Examples 1 to 4, the results showed that the Also, results were obtained in which there was no change in discharge performance from the container and excellent stability at high temperatures was obtained.

In Examples 13 to 26 in Table 2, even when the type and content of the component (C) were changed, compared to Comparative Examples 5 and 6, the dischargeability from the container was improved even during low-temperature storage. Results showed no change and excellent stability at high temperatures.

The present invention provides a first part composition for hair dyeing or bleaching, which is used by mixing with a second part composition for hair dyeing or bleaching before use, and which has excellent stability at high temperatures and when stored at low temperatures. It is possible to provide a first part composition for hair dyeing or bleaching that has little change in viscosity even when changing colors and does not affect dischargeability from a container.

Claims (2)

A first part composition for hair dyeing or bleaching that is used by mixing with a second part composition for hair dyeing or bleaching before use,
(A) Alkaline agent (B) One or more types selected from polyoxyethylene (1) cetyl ether, polyoxyethylene (1) stearyl ether, or polyoxyethylene (1) behenyl ether
(C) (C1) A polyoxyethylene alkyl ether type nonionic surfactant having a polyethylene chain with an added mole number of ethylene oxide of 20 or less, and (C2) a polyoxyethylene chain having a polyethylene chain with an added mole number of ethylene oxide exceeding 20. contains an ethylene alkyl ether type nonionic surfactant, the content of the component (A) is 0.5 to 8% by mass, the content of the component (B) is 2 to 20% by mass, and the content of the component (B) is 2 to 20% by mass; The content of component (C) is 0.6 to 12% by mass,
A first agent composition for hair dyeing or bleaching that does not contain a higher alcohol having 12 to 24 carbon atoms . The first agent for hair dyeing or bleaching according to claim 1, wherein the first agent composition for hair dyeing or bleaching has a viscosity at 20° C. of 3,000 to 100,000 mPa·s. Composition.