JP2022068914A - First agent composition for hair dyeing - Google Patents

Abstract

To provide a first agent composition for hair dyeing that dyes light hair blue and is excellent in fastness and high-temperature stability.SOLUTION: A first agent composition for hair dyeing has (A) at least one selected from salts of 2,4-diamino phenoxy ethanol, (B) at least one selected from toluene-2,5-diamine or salts thereof, (C) two or more selected from polyoxyethylene alkyl ethers with 10 or more moles of added ethylene oxides, (D) a cationic surfactant, and (E) at least one selected from cetanol or stearyl alcohols, the mass ratio of the component (B) to the component (A) [(B)/(A)] being 0.36-1.61.SELECTED DRAWING: None

Description

The present invention relates to a first agent composition for hair dyeing. More specifically, the present invention relates to a first agent composition for hair dyeing containing a specific oxidative dye.

Hair coloring agents include permanent hair dyes such as oxidative hair dyes that use oxidative dyes, bleaching agents that brighten hair, semi-permanent hair dyes that use direct dyes, and temporary hair dyes that temporarily color hair. It is roughly divided. Of these, the oxidative hair dye, which is a permanent hair dye, is generally a first agent composition for hair dye containing an alkaline agent and an oxidative dye, and a second agent composition for hair dye containing an oxidant. It is composed of and, which are mixed at the time of use, mixed, and applied to hair for use. Oxidative hair dyes are widely used as emulsions in various dosage forms such as emulsions and creams from the viewpoint of applicability to hair and treatment properties. The alkaline agent swells the hair to open the cuticle and allow the oxidative dye to penetrate into the hair, and at the same time, promotes the action of the oxidant contained in the second agent composition for hair dyeing. The oxidative dye develops color by oxidative polymerization with an oxidant contained in the second agent composition for hair dyeing, and is fixed from the inside of the hair. For this reason, oxidative hair dyes are dyed from the inside of the hair, so they have a longer lasting hair dyeing effect than other hair coloring agents, and because of this property, they are currently used by most people. It is a hair coloring agent.

Oxidation dyes contained in oxidative hair dyes are classified into dye intermediates and couplers, and the color development differs depending on the selection and combination of each, and the dye intermediates themselves cause oxidative polymerization, so one or more types. It has the feature of developing color even when used in. On the other hand, since the couplers themselves do not undergo oxidative polymerization by themselves, they do not develop color when used as a single species or when a plurality of species are combined, but when combined with a dye intermediate, they cause oxidative polymerization and develop color.

By combining an arbitrary dye intermediate and a coupler with the first agent composition for hair dyeing, the hair can be dyed in various colors, but the finished color after the hair dyeing is the hair color before the hair dyeing. It is greatly affected by the brightness. In recent years, flashy hair colors of primary colors such as red and blue have become popular, and along with this, the need for oxidative hair dyes that develop colors in the primary colors is increasing. In order to do so, it is necessary to make the hair color bright in advance by using a bleaching agent or the like before dyeing the hair. As the level of brightness, the brightness of about 13 levels or more is required on the level scale established by the NPO Japan Hair Color Association, which divides the lightness of hair into 12 stages of 4 to 15.

However, even if the brightness level of the hair color before dyeing is set to 13 levels, the yellowness remaining in the hair affects the color development of the oxidative hair dye, and the hair color has the expected primary color tone. It may not be. In particular, the bluish tones of the primary colors are much more susceptible to the yellowness that remains in the hair before dyeing than the red and yellow colors, and the finished hair color is the target primary color blue. Instead, it sometimes turned into a dull greenish color.

In Patent Document 1, an oxidative hair dye that dyes hair, especially human white hair, in an arbitrary ratio by combining toluene-2-diamine sulfate and 2,4-diaminophenoxyethanol hydrochloride in arbitrary proportions. We are proposing a hair dyeing method using the first agent and an oxidative hair dye.

Japanese Unexamined Patent Publication No. 2018-70515

Patent Document 1 discloses a technique for dyeing gray hair in dark blue, but when dyeing hair brightened by bleaching or the like into a bluish color, the hair color and brightness before dyeing are greatly affected. It was easy, and the yellowness remaining in the hair resulted in a greenish hair color in which yellow and blue were mixed, and there were cases where the desired bluish hair color could not be achieved. In addition, if bleaching is repeated in advance to lighten the hair color as a step before dyeing the hair color of the primary color system, the load on the hair becomes large and it causes damage. When hair with a high degree of damage is dyed with an oxidative hair dye, there is a problem that the developed dye easily flows out to the outside of the hair, and as a result, it easily fades. In addition, when hair that has been lightened by bleaching is dyed in a bluish color and then faded by washing the hair, the bluish tint is reduced and the yellowish tint of the hair itself is exposed and becomes greenish, so the blue tint is maintained. There was still a problem with the robustness of doing so.

Furthermore, in order to develop a deep blue color tone of the primary color system, the content of toluene-2,5-diamine or a salt thereof and the salt of 2,4-diaminophenoxyethanol in the first agent composition for hair dyeing is increased. As the amount of salt increased, there was a concern that the emulsification of the first agent composition for hair dyeing became unstable and the high temperature stability deteriorated.

An object of the present invention is to provide a first agent composition for hair dyeing, which dyes bright hair in blue and has good fastness and high temperature stability.

As a result of diligent studies by the present inventor,
(A) One or more selected from salts of 2,4-diaminophenoxyethanol (B) One or more selected from toluene-2,5-diamine or its salts (C) Polyethylene with 10 or more molar additions of ethylene oxide Contains two or more selected from oxyethylene alkyl ethers (D) cationic surfactants (E) one or more selected from cetanol or stearyl alcohol, and the mass ratio of the component (A) to the component (B). It has been found that the first agent composition for hair dyeing in which [(B) / (A)] is 0.36 to 1.61 solves the above-mentioned problems, and the present invention has been completed.

INDUSTRIAL APPLICABILITY According to the present invention, a first agent composition for hair dyeing, which dyes bright hair in blue and has good fastness and high temperature stability, is provided.

The present invention will be described in detail below.

In the present invention, the units indicating the content are all mass% unless otherwise specified.

In the present invention, the high temperature means 40 ° C. or higher and 50 ° C. or lower.

In the present invention, the bright hair is a hair having a brightness of 13 levels or more on a level scale in which the lightness of the hair is divided into 12 stages of 4 to 15 established by the NPO Japan Hair Color Association.

The first agent composition for hair dyeing of the present invention is one or more selected from (A) 2,4-diaminophenoxyethanol salt and (B) one selected from toluene-2,5-diamine or a salt thereof. The above is contained as an essential oxidation dye. The combination of these oxidative dyes can dye bright hair blue.

The one or more selected from the salt of (A) 2,4-diaminophenoxyethanol used in the present invention is not particularly limited, but for example, hydrochloric acid 2,4-diaminophenoxyethanol (molecular weight: 241.11), sulfuric acid 2 , 4-Diaminophenoxyethanol (molecular weight: 266.27) and the like, and at least one selected from these can be contained.

The content of one or more selected from the salts of (A) 2,4-diaminophenoxyethanol used in the present invention is preferably 0.21 to 0.49%, more preferably 0.24 to 0.45%. , More preferably 0.28 to 0.42%. When the content of one or more selected from the salts of (A) 2,4-diaminophenoxyethanol is less than 0.21%, the dyed color of bright hair may not look greenish and blue, and the toughness may not be seen. May get worse. When the content of one or more selected from the salts of (A) 2,4-diaminophenoxyethanol exceeds 0.49%, the dyed color of bright hair may become bluish black and may not appear blue, and high temperature stability may occur. It may get worse.

The content of one or more selected from the salt of (A) 2,4-diaminophenoxyethanol used in the present invention is a value calculated by the content as 2,4-diaminophenoxyethanol (molecular weight: 168.19). be.

The salt of toluene-2,5-diamine among one or more selected from the above-mentioned (B) toluene-2,5-diamine or a salt thereof used in the present invention is not particularly limited, but for example, toluene hydrochloride-. Examples thereof include 2,5-diamine (molecular weight: 195.09) and toluene sulfate-2,5-diamine (molecular weight: 220.25), and at least one selected from these can be contained.

The content of one or more selected from the (B) toluene-2,5-diamine or a salt thereof used in the present invention is preferably 0.1 to 0.45%, more preferably 0.15 to 0. 4%, more preferably 0.21 to 0.35%. If the content of one or more selected from the above (B) toluene-2,5-diamine or a salt thereof is less than 0.1%, the dyed hair color may become light and the bright hair may not appear grayish and blue. Or, there is a risk that the robustness will deteriorate. When the content of one or more selected from the above (B) toluene-2,5-diamine or a salt thereof exceeds 0.45%, the dyed hair color in bright hair may become bluish black and may not appear blue.

When the salt of toluene-2,5-diamine is contained among one or more selected from the above-mentioned (B) toluene-2,5-diamine or a salt thereof used in the present invention, the content thereof is toluene-2. , 5-Diamine (molecular weight: 122.17) is a value calculated by the content.

In the present invention, from the viewpoint of dyeing bright hair in blue and having good fastness, the above (B) toluene-2,5 with respect to one or more selected from the salt of (A) 2,4-diaminophenoxyethanol. -The mass ratio [(B) / (A)] with one or more selected from diamines or salts thereof is preferably 0.36 to 1.61, more preferably 0.54 to 1.43, and even more preferably. 0.75 to 1.25% is good. When [(B) / (A)] is less than 0.36 or more than 1.61, bright hair may not look blue or the toughness may be deteriorated.

The mass ratio [(B) / (A)] shown in the present invention is the content of one or more selected from the salt of (A) 2,4-diaminophenoxyethanol as 2,4-diaminophenoxyethanol. (B) Of one or more selected from toluene-2,5-diamine or a salt thereof, when the salt of toluene-2,5-diamine is contained, the content as toluene-2,5-diamine is used. It is a value calculated using each.

From the viewpoint of high temperature stability, the present invention contains (C) two or more kinds selected from polyoxyethylene alkyl ethers having 10 or more moles of ethylene oxide added. The numbers in parentheses of the polyoxyethylene (hereinafter referred to as POE) alkyl ether shown below indicate the number of moles of ethylene oxide added (hereinafter referred to as EO).

The two or more kinds selected from the polyoxyethylene alkyl ethers having an addition molar number of 10 or more of the (C) ethylene oxide used in the present invention are not particularly limited, but are not particularly limited, and are, for example, POE (12) lauryl ether and 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 (10) Tridecyl Ether, POE (12) ) Tridecyl ether, POE (15) tridecyl ether, POE (20) tridecyl 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 (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 (12) Isostearyl ether, POE ( 16) Isostearyl ether, POE (10) oleyl ether, POE (15) oleyl ether, POE (20) oleyl ether, POE (50) oleyl ether, POE (10) behenyl ether, POE (20) behenyl ether, POE (20) 30) Behenyl ether and the like are mentioned, and at least two kinds selected from these are contained.

The content of two or more selected from the polyoxyethylene alkyl ethers having an addition molar number of 10 or more of the (C) ethylene oxide used in the present invention is preferably 2 to 6%. If the content of two or more selected from the polyoxyethylene alkyl ethers having an addition molar number of (C) ethylene oxide of 10 or more is less than 2% or more than 6%, high temperature stability may not be maintained.

Of the two or more selected from the polyoxyethylene alkyl ethers having an addition molar number of 10 or more of the (C) ethylene oxide used in the present invention, preferably at least one is E.I. O. The number of added moles of the above is 30 or more, and more preferably, at least one of them is POE (40) cetyl ether.

Of the two or more selected from the polyoxyethylene alkyl ethers having an addition molar number of 10 or more of the (C) ethylene oxide used in the present invention, E.I. O. The content of the POE alkyl ether having an addition molar number of 30 or more is preferably 55% or more.

The present invention contains (D) a cationic surfactant from the viewpoint of high temperature stability.

The (D) cationic surfactant used in the present invention is not particularly limited, and for example, lauryltrimethylammonium chloride, dicocoyldimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, and the like. Examples thereof include distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, behenyltrimethylammonium bromide, and the like, and at least one selected from these can be contained.

Among the (D) cationic surfactants used in the present invention, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, and more preferably behenyltrimethylammonium chloride are preferable.

The content of the (D) cationic surfactant used in the present invention is preferably 1.5 to 3.5%. If the content of the (D) cationic surfactant is less than 1.5%, high temperature stability may not be maintained. When the content of the (D) cationic surfactant exceeds 3.5%, further improvement in high temperature stability cannot be expected.

The present invention contains one or more selected from (E) cetanol or stearyl alcohol from the viewpoint of high temperature stability.

Of one or more selected from the (E) cetanol or stearyl alcohol used in the present invention, two kinds of cetanol are preferable, and cetanol and stearyl alcohol are more preferable.

The content of one or more selected from the (E) cetanol or stearyl alcohol used in the present invention is preferably 2 to 10%, more preferably 5 to 10%. If the content of one or more selected from the (E) cetanol or stearyl alcohol is less than 2%, high temperature stability may not be maintained. When the content of one or more selected from the (E) cetanol or stearyl alcohol exceeds 10%, further improvement in high temperature stability cannot be expected.

The first agent composition for hair dyeing in the present invention may contain an alkaline agent from the viewpoint of hair dyeing property.

The alkaline agent used in the present invention is not particularly limited, and for example, ammonia, alkanolamine, organic amine, alkali metal or alkaline earth metal hydroxide, carbonate, hydrogen carbonate, metasilicate, phosphorus. Examples thereof include acid salts and basic amino acids, and at least one selected from these can be contained.

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

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

Specific examples of the hydroxide of the alkali metal or alkaline earth metal include lithium hydroxide, sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide and the like.

Specific examples of the basic amino acid include arginine, lysine, histidine and the like.

Specific examples of the carbonate include sodium carbonate, potassium carbonate, ammonium carbonate and the like.

Specific examples of the hydrogen carbonate include sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium hydrogen carbonate and the like.

Specific examples of the metasilicate include sodium metasilicate, potassium metasilicate, ammonium metasilicate and the like.

Specific examples of the phosphate include sodium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, tripotassium phosphate, and ammonium dihydrogen phosphate. Examples thereof include diammonium hydrogen phosphate and triammonium phosphate.

Of the alkaline agents used in the present invention, at least one selected from ammonia and alkanolamine is preferable.

The content of the alkaline agent used in the present invention is not particularly limited, but is preferably 0.5 to 8% from the viewpoint of hair dyeing property and bleaching property.

The first agent composition for hair dyeing of the present invention is selected from one or more selected from the salt of (A) 2,4-diaminophenoxyethanol and the above-mentioned (B) toluene-2,5-diamine or a salt thereof1. Oxidation dyes other than the above species can be contained within a range that does not impair the effects of the present invention.

The oxidation dye other than one or more selected from the salt of (A) 2,4-diaminophenoxyethanol and one or more selected from the salt of (B) toluene-2,5-diamine or a salt thereof is not particularly limited. , For example, para-phenylenediamine, ortho-aminophenol, para-aminophenol, meta-aminophenol, 5-amino orthocresol, 2,6-diaminopyridine, 1-naphthol, resorcin, 5- (2-hydroxyethylamino) -2-methyl. Phenols and their salts, etc. can be mentioned, and those listed in the "Integrated Edition of Raw Material Standards for Non-pharmaceutical Products 2006" (issued in November 2013, Yakuji Nippo Co., Ltd.) can also be used as appropriate and are selected from these. At least one or more can be contained.

The first agent composition for hair dyeing of the present invention can contain a higher alcohol other than one or more selected from the (E) cetanol or stearyl alcohol.

The higher alcohol other than one or more selected from the (E) cetanol or stearyl alcohol that can be contained in the first agent composition for hair dyeing of the present invention is not particularly limited, but is not particularly limited, and is, for example, lauryl alcohol, myristyl alcohol, and isostearyl alcohol. , Oleyl alcohol, araquil alcohol, behenyl alcohol, 2-decyltetradecanol and the like.

The first agent composition for hair dyeing in the present invention may contain an oily component from the viewpoint of imparting a glossy feeling to the hair during rinsing and after drying.

The oily component is not particularly limited, and examples thereof include hydrocarbons, fats and oils, waxes, higher fatty acids, alkylglyceryl ethers, esters, silicones, and the like, and at least one selected from these can be contained.

Specific examples of the hydrocarbon include liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, squalane, microcrystalline wax, petrolatum, α-olefin oligomer, polybutene, selecin and the like.

Specific examples of the oils and fats include almond oil, olive oil, camellia oil, shea oil, sunflower oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, macadamian nut oil, sunflower oil, palm oil, and evening primrose oil. Avocado oil, peach kernel oil, rose hip oil, argan oil, orange oil, ylang ylang flower oil, kyonin oil, corn oil, pomegranate seed oil, sesame oil, spearmint oil, peppercorn seed oil, peppermint oil, hipophaeramnoides seeds Oil, Nigera Sachiba seed oil, Nioitenguquaoi oil, Bergamot seed oil, Hemachi seed oil, Mink oil, Meadowfoam oil, Eucalyptus oil, Yucha oil, Lemon fruit oil, Rosemary oil, Sunflower oil Fallen raw oil, Cotton seed oil, Examples include pistacio oil and kukui nut oil.

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

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

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

Specific examples of the ester include isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, and myristic acid. Decyl, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, cetyl lysinolate, 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-ethylhexanate, stearyl 2-ethylhexarate, isostearic acid Hexil, ethylene gillicol di2-ethylhexanoate, ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol di (capryl capric acid), propylene glycol dicaprate, neopentyl glycol dicaprylate, neo di2-ethylhexanoate Pentylglycol, glyceryl tricaprylate, glyceryl tri2-ethylhexanoate, glyceryl tri (capril capric acid), glyceryl triundecylate, glyceryl triisopalmitate, glyceryl triisostearate, trimethylolpropane tri-2-ethylhexanoate, tri Trimeryl propane isostearate, pentaerythritol tetra2-ethylhexanoate, pentaerythritol tetramyristinate, pentaerythritol tetraisostearate, 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, iso 2-ethylhexarate Stearyl, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyl isostearate Examples thereof include decyl, isostearyl isostearate, and 2-octyl isostearate.

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

The content of the oily component is not particularly limited, but is preferably 0.5 to 20% from the viewpoint of imparting a glossy feeling to the hair during rinsing and after drying.

The first agent composition for hair dyeing in the present invention can contain a polyhydric alcohol from the viewpoint of finger passage during rinsing.

The polyhydric alcohol is not particularly limited, but for example, glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butylene glycol, 1,3. -Propylene glycol, pentylene glycol, ethylhexyl glycerin, sorbitol, xylitol, martitol, erythritol, mannitol, lactitol and the like can be mentioned, and at least one selected from 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 finger passage during rinsing.

In addition to the above-mentioned components, the first agent composition for hair dyeing of the present invention comprises various components used in ordinary cosmetics, non-medicinal products, pharmaceuticals, etc., as long as the effects of the present invention are not impaired. For example, direct dyes, acidic dyes, basic dyes, HC dyes, surfactants other than the component (C) and the component (D), polymer compounds, moisturizers, thickeners, medicinal components, protein derivatives, and water. At least selected from degraded proteins, amino acids, metal sequestering agents, antioxidants, vegetable extracts, dye extracts, vitamins, preservatives, pigments, pigments, powders, pH regulators, UV absorbers, fragrances, etc. It can contain one or more kinds. However, the present invention is not limited to these examples.

The dosage form of the first agent composition for hair dyeing of the present invention is not particularly limited, but is used in, for example, emulsion, cream, gel, aerosol and the like, and the second agent composition for hair dyeing. From the viewpoint of the mixing property and the applicability to the hair, a creamy form is preferable.

The viscosity of the first agent composition for hair dyeing in the present invention is not particularly limited, but is preferably 3,000 to 50 under the condition of 20 ° C. from the viewpoint of mixing with the second agent composition for hair dyeing. 000mPa · s is good.

The viscosity of the first agent composition for hair dyeing in the present invention under the condition of 20 ° C. is a sample bottle (food 140: first glass stock) of the first agent composition for hair dyeing obtained by preparing by a conventional method. After filling 120 g into (manufactured by the company) and allowing it to stand for 24 hours under 20 ° C. conditions, the viscosity is 5, by a B-type viscometer with a helical stand (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.). If it is less than 000 mPa · s, use an M3 rotor at 20 ° C. and 12 rpm for 1 minute, and if the viscosity is 5,000 to 50,000 mPa · s, use an M4 rotor and rotate it at 20 ° C. and 12 rpm for 1 minute. It was measured afterwards.

The pH of the first agent composition for hair dyeing in the present invention is preferably 9 to 12 under the condition of 20 ° C. from the viewpoint of hair dyeing property.

The pH of the first agent composition for hair dyeing in the present invention under 20 ° C. conditions is a sample bottle (Food 140: Daiichi Glass Co., Ltd.) of the first agent composition for hair dyeing obtained by preparing by a conventional method. The product can be obtained by filling 120 g of the product and leaving it to stand for 24 hours under the condition of 20 ° C., and then measuring the pH of the undiluted solution with a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The container filled in the first agent composition for hair dyeing used in the present invention is not particularly limited, but is filled in various containers such as a poly container, an aluminum tube container, a poly tube container, an aerosol container, and a pouch container. , Saved until use.

The first agent composition for hair dyeing of the present invention is used by being mixed with the second agent composition for hair dyeing containing an oxidizing agent at the time of use.

The second agent composition for hair dyeing contains an oxidizing agent from the viewpoint of hair dyeing property and bleaching property.

The oxidizing agent is not particularly limited, and for example, hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, sodium peroxide, and the like. Potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adduct of peroxide, hydrogen peroxide adduct of phosphate, hydrogen peroxide adduct of pyrophosphate, Examples thereof include sodium bromate, and at least one selected from these can be contained.

Among the oxidizing agents used in the present invention, hydrogen peroxide is preferable from the viewpoint of hair dyeing property and bleaching property.

The content of the oxidizing agent is not particularly limited, but is preferably 0.4 to 6% from the viewpoint of hair dyeing property and bleaching property.

The second agent composition for hair dyeing can contain an acid, a metal sequestering agent, and a pH adjusting agent from the viewpoint of improving the stability of the oxidizing agent.

The acid, metal sequestering agent, and pH adjusting agent are not particularly limited, and examples thereof include phosphoric acid, edetic acid, hydroxyethanediphosphonic acid and salts thereof, and hydroxides of alkali metals or alkaline earth metals. And can contain at least one selected from these.

In addition to the above-mentioned components, the second agent composition for hair dyeing contains various components used in ordinary cosmetics, non-pharmaceutical products, pharmaceuticals, etc., for example, an interface, as needed, as long as the effects of the present invention are not impaired. Activators, polymer compounds, oily ingredients, polyhydric alcohols, moisturizers, thickeners, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, vegetable extracts, crude drug extracts, vitamins, preservatives, fragrances Etc., and at least one selected from these can be contained. However, the present invention is not limited to these examples.

The dosage form of the second agent composition for hair dyeing is not particularly limited, but is used in, for example, emulsion, cream, gel, aerosol and the like, from the viewpoint of applicability to hair and extensibility. It is preferably creamy or milky.

The viscosity of the second agent composition for hair dyeing in the present invention is not particularly limited, but is preferably under the condition of 20 ° C. from the viewpoint of mixability with the first agent composition for hair dyeing and applicability to hair. 1,000 to 100,000 mPa · s, more preferably 1,000 to 50,000 mPa · s.

The viscosity of the second agent composition for hair dyeing under the condition of 20 ° C. is that the first agent composition for hair dyeing obtained by preparing by a conventional method is sampled in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.). Is filled with 120 g and allowed to stand for 24 hours under the condition of 20 ° C., and then the viscosity is 5,000 mPa · s by a B-type viscometer with a helical stand (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.). If it is less than, use an M3 rotor at 20 ° C. and 12 rpm for 1 minute, and if the viscosity is 5,000 to 50,000 mPa · s, use an M4 rotor at 20 ° C. and 12 rpm for 1 minute, 50,000 mPa. If it exceeds s, it is measured after rotating at 20 ° C. and 6 rpm for 1 minute using an M4 rotor.

The pH of the second agent composition for hair dyeing is preferably 1.5 to 4 under the condition of 20 ° C. from the viewpoint of the stability of the oxidizing agent.

The pH of the second agent composition for hair dyeing under 20 ° C. conditions was such that the second agent composition for hair dyeing obtained by preparing by a conventional method was placed in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.). It can be obtained by measuring the pH of the undiluted solution with a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by HORIBA, Ltd.) after filling 120 g and leaving it to stand for 24 hours under the condition of 20 ° C.

The container filled in the second agent composition for hair dyeing is not particularly limited, but is filled in various containers such as a poly container, an aluminum tube container, a poly tube container, an aerosol container, and a pouch container, and stored until use. Will be done.

The mixed mass ratio of the first agent composition for hair dyeing and the second agent composition for hair dyeing in the present invention (first agent composition for hair dyeing: second agent composition for hair dyeing) is not particularly limited. From the viewpoint of hair dyeing property and bleaching property, it is preferably 1: 5 to 5: 1, more preferably 1: 3 to 2: 1.

Hereinafter, the present invention will be described in more detail with reference to examples, but these are not intended to limit the present invention in any way. The unit of the numerical value indicating the content described in each table is mass% unless otherwise specified. In addition, the numbers in parentheses of the component (A) and the component (B) in each table indicate the content as 2,4-diaminophenoxyethanol and the content as toluene-2,5-diamine, respectively.

In the evaluation test shown in the present specification, "blueness in bright hair", "toughness" and "high temperature stability" were evaluated by the following methods.

"Blueness in bright hair"
The first agent composition for hair dyeing according to each Example and each comparative example and the second agent composition for hair dyeing shown in Table 1 were mixed at a ratio of 1: 2, and 2 g of each mixture was added to a brightness level of 13 levels. It was evenly applied to a considerable hair bundle (product number: BR-2-A, manufactured by Bulux Co., Ltd .; 10 cm, 1 g). After leaving it for 20 minutes, rinse it thoroughly with water, wash it with shampoo (manufactured by Dariya Co., Ltd .; Go Go Train Rinse in Shampoo), dry the hair bundle with a dryer after towel drying, and use it as an evaluation hair bundle. 15 professional panelists evaluated visually.
<Evaluation criteria>
⊚: More than 12 out of 15 people evaluated that the hair was dyed in bright blue.
〇: 8 to 11 out of 15 people evaluated that their hair was dyed in bright blue.
Δ: 4 or more and 7 or less out of 15 people evaluated that the hair was dyed in bright blue.
X: 3 out of 15 people evaluated that the hair was dyed in bright blue.

"Robustness"
After the evaluation of "blueness in bright hair", each evaluation hair bundle is moistened with lukewarm water at 40 ° C., washed with shampoo (manufactured by Dariya Co., Ltd .; Go Go Train Rinse in Shampoo), and after towel drying, a dryer is used. And dried. This series of operations was repeated 10 times to obtain hair bundles for evaluation, which were visually evaluated by 15 specialized panelists according to the following criteria.
<Evaluation criteria>
⊚: More than 12 out of 15 people evaluated that the blue color could be maintained.
〇: 8 to 11 out of 15 people evaluated that they could maintain the blue color.
Δ: 4 or more and 7 or less out of 15 evaluated that the blue color could be maintained.
X: 3 out of 15 people evaluated that the blue color could be maintained.

"High temperature stability"
120 g of the first agent composition for hair dyeing according to each Example and each Comparative Example was placed in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and stored under the conditions of 40 ° C and 50 ° C for 30 days, respectively. , The separated state was visually evaluated.
<Evaluation criteria>
〇: No separation was observed under storage conditions of both 40 ° C and 50 ° C.
Δ: Separation was not observed under 40 ° C. storage conditions, but separation was observed under 50 ° C. storage conditions.
X: Separation was observed under both storage conditions of 40 ° C and 50 ° C.

In the evaluation items shown in the present invention, the evaluation of "blueness in bright hair" was performed using the second agent composition for hair dyeing shown in Table 1.

From Examples 1 to 8 shown in Table 2, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 1 to 8, the content of one or more selected from the salts of (A) 2,4-diaminophenoxyethanol is preferably 0.21 to 0.49%, more preferably 0.24 to 0.24 to 0.24 to 0.49%. It can be seen that 0.45%, more preferably 0.28 to 0.42% is preferable.

From Examples 9 to 17 shown in Table 3, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 9 to 17, the content of one or more selected from (B) toluene-2,5-diamine or a salt thereof is preferably 0.1 to 0.45%, more preferably 0.15. It can be seen that ~ 0.4%, more preferably 0.21 to 0.35% is preferable.

From Examples 1 to 8 shown in Table 2 and Examples 9 to 17 shown in Table 3, the above-mentioned (B) toluene-2,5-for one or more selected from the above-mentioned salts of (A) 2,4-diaminophenoxyethanol. The mass ratio [(B) / (A)] with one or more selected from diamines or salts thereof is preferably 0.36 to 1.61, more preferably 0.54 to 1.43, and even more preferably 0. It can be seen that .75 to 1.25% is good.

From Examples 18 to 22 shown in Table 4, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 18 to 22, it can be seen that the content of two or more selected from the polyoxyethylene alkyl ethers having 10 or more moles of the (C) ethylene oxide added is preferably 2 to 6%. ..

From Examples 23 to 30 shown in Table 5, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 23 to 30, preferably at least one of the two or more selected from the polyoxyethylene alkyl ethers having 10 or more moles of the (C) ethylene oxide added is E.I. O. It can be seen that the number of added moles of the above is 30 or more, and more preferably at least one of them is POE (40) cetyl ether. Further, among two or more kinds selected from polyoxyethylene alkyl ethers having an addition molar number of (C) ethylene oxide of 10 or more, E.I. O. It can be seen that the content of the POE alkyl ether having an addition molar number of 30 or more is preferably 55% or more.

From Examples 31 to 35 shown in Table 6, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 31 to 35, it can be seen that among the (D) cationic surfactants, behenyltrimethylammonium chloride is preferably preferable, and the content thereof is preferably 1.5 to 3.5%. ..

From Examples 36 to 42 shown in Table 7, good results were obtained for "blueness in bright hair", "toughness" and "high temperature stability", respectively. Further, from Examples 36 to 42, it can be seen that the content of one or more selected from the (E) cetanol or stearyl alcohol is preferably 2 to 10%, more preferably 5 to 10%.

Examples of prescriptions for the composition are given below. From the first agent composition for hair dyeing shown in Example 43 below, good results were obtained in terms of "blueness in bright hair", "toughness" and "high temperature stability", respectively.

<Example 43>
(First agent composition for hair dyeing)
Ingredient content (%)
(A) Hydrochloric acid 2,4-diaminophenoxyethanol 0.40
(2,4-Diaminophenoxyethanol) (0.28)
(B) Toluene-2,5-diamine 0.32
(C) POE (40) cetyl ether 2.90
(C) POE (20) cetyl ether 0.40
(C) POE (10) cetyl ether 0.30
(D) Behenyltrimethylammonium chloride 2.40
(E) Cetanol 3.30
(E) Stearyl alcohol 2.50
Resorcin 0.10
Liquid paraffin 3.00
Methylpolysiloxane 1.00
L-ascorbic acid 0.50
Sodium sulfite 0.50
Glycerin 4.00
Polydimethyldimethylenepyrrolidinium 0.40
Tetrasodium edetate tetrahydrate 0.20
28% ammonia water 8.00
Avocado oil 0.01
Almond oil 0.01
Jojoba oil 0.01
Fragrance 0.80
Purified water 68.95
Total 100.00

The first agent composition for hair dyeing shown in Example 43 has a viscosity of 14,500 mPa · s under the condition of 20 ° C. and a pH of 10.8 under the condition of 20 ° C.

According to the present invention, with respect to the first agent composition for hair dyeing containing a specific oxidative dye, the first agent composition for hair dyeing which dyes bright hair in blue and has good fastness and high temperature stability. I will provide a.

Claims (4)

(A) One or more selected from salts of 2,4-diaminophenoxyethanol (B) One or more selected from toluene-2,5-diamine or its salts (C) Polyethylene having 10 or more moles of ethylene oxide added Contains two or more selected from oxyethylene alkyl ethers (D) cationic surfactants (E) one or more selected from cetanol or stearyl alcohol, and the mass ratio of the component (A) to the component (B). The first agent composition for hair dyeing in which [(B) / (A)] is 0.36 to 1.61. The first agent composition for hair dyeing according to claim 1, wherein at least one of the components (C) is a polyoxyethylene cetyl ether having an addition molar number of 40. The first agent composition for hair dyeing according to claim 1 or 2, wherein the content of the component (D) is 1.5 to 3.5% by mass. The first agent composition for hair dyeing according to any one of claims 1 to 3, wherein the content of the component (E) is 2 to 10% by mass.