JP7586482B2 - 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, the present invention relates to a first agent composition for hair dyeing or bleaching that contains an alkaline agent, has a transparent appearance, and exhibits little change in viscosity over time even under low and high temperature conditions.

With the rise in fashion consciousness in recent years, hair coloring agents, which allow you to easily change your hair color, are accepted by many people, both men and women. There are various types of hair coloring agents, such as permanent hair dyes, semi-permanent hair dyes, bleaches, and temporary coloring agents, and they are used according to the needs of each person. Of these, permanent hair dyes and bleaches have excellent hair dyeing and bleaching effects, and because of these characteristics, they are currently used by many people.

As permanent hair dyes and bleaches, two-component systems consisting of a first-component composition containing an alkaline agent with or without an oxidizing dye, and a second-component composition containing an oxidizing agent such as hydrogen peroxide, are widely used. These are used to dye or bleach hair by mixing the first and second-component compositions for hair dyeing or bleaching just before use. Mixing methods include (1): a mixing method in which the first and second-component compositions for hair dyeing or bleaching are separately discharged from a container onto a mixing container such as a tray or cup or onto the palm of the user, and then mixed in advance before application to the hair.
(2) A mixing method in which the first and second agent compositions for hair dyeing or bleaching are separately dispensed from a container onto an applicator such as a brush or a paint brush, or onto the user's palm, and mixed while being applied to the hair.
(3) A mixing method in which the first and second agent compositions for hair dyeing or bleaching are discharged separately from a container, and the first and second agent compositions for hair dyeing or bleaching are applied separately to the hair, and then mixed on the hair using an applicator such as a brush or a paint brush, or the user's hand.
(4) When the first and second agent compositions for hair dyeing or bleaching are in aerosol form, a mixing method is used in which the compositions are mixed using an instrument having a mechanism for mixing within the aerosol container or actuator when being ejected from the aerosol container.
etc.

In any mixing method, it is required that the first and second agent compositions for hair dyeing and bleaching have good mixability, that the mixed composition has good spreadability on the hair, and that the mixed composition does not drip or splash when applied. In addition, in the above mixing methods (2) and (3), it is required that not only the mixed composition but also each of the first and second agent compositions for hair dyeing or bleaching has good spreadability on the hair, and that the mixed composition does not drip or splash when applied.

The formulation of the first and second agent compositions for hair dyeing and bleaching is generally liquid or cream-like. Liquid compositions have low viscosity and good mixability, and spread well over the entire hair, but are prone to dripping and splashing when applied. Cream-like compositions have a higher viscosity than liquid compositions, so they are less likely to drip or splash when applied. However, cream-like compositions contain a large amount of oily components such as higher alcohols and hydrocarbons with 12 to 24 carbon atoms for the purpose of viscosity adjustment, so the viscosity is likely to increase over time, especially under low temperature conditions. In addition, first agent compositions for hair dyeing and bleaching that contain a large amount of salts such as oxidation dyes and alkali agents are prone to decrease in stability over time, and are prone to viscosity decrease especially under high temperature conditions. If the viscosity changes, it will result in various problems such as decreased mixability with the second agent composition, decreased spreadability, and dripping and splashing when applied. Therefore, a first agent composition for hair dyeing or bleaching that has little change in viscosity over time is required.

JP 2001-328927 A JP 2018-123062 A

Patent Document 1 discloses a hair dye first agent composition that exhibits little change in viscosity over time, is easy to mix and apply, does not drip or splash, and has good hair dyeing properties. However, the change in viscosity over time is only examined under conditions at 25°C, and no consideration is given to the change in viscosity over time under low or high temperature conditions.

Patent Document 2 discloses a gel-like hair composition that does not contain higher alcohols or hydrocarbons with 12 to 24 carbon atoms that can cause an increase in viscosity, contains an ionic polymer, and has good applicability to hair and ejectability. However, Patent Document 2 only provides examples of hair manicures that use acid dyes, and the pH is 3.5. As mentioned above, first-agent compositions for hair dyeing or bleaching contain a large amount of salts such as oxidative dyes and alkaline agents, so their stability over time is likely to decrease, and their pH is around 9 to 12, so their technical elements are significantly different from hair manicures. Patent Document 2 does not fully consider first-agent compositions for hair dyeing or bleaching.

Moreover, most of the conventional first and second agent compositions for hair dyeing or bleaching have an appearance of a milky opaque color. If the first agent composition for hair dyeing or bleaching has a transparent appearance, it is easy to check the degree of mixing with the second agent composition, and since the appearance is superior to that of a milky opaque color, it is expected to give a good impression to the user.

The present invention has been made in consideration of the above problems, and relates to a first agent composition for hair dyeing or bleaching that contains an alkaline agent, has a transparent appearance, and exhibits little change in viscosity over time even under low and high temperature conditions.

The inventors discovered that the above problems could be solved by adding an anionic polymer to a hair dyeing or bleaching first agent composition that contains an alkaline agent and is substantially free of higher alcohols and hydrocarbons having 12 to 24 carbon atoms, and thus completed the present invention.

That is, the present invention provides a first agent composition for hair dyeing or bleaching containing an alkaline agent,
(A) contains an anionic polymer,
The present invention provides a first agent composition for hair dyeing or bleaching, which is characterized by being substantially free of higher alcohols and hydrocarbons having 12 to 24 carbon atoms and having a transparent appearance.

The first agent composition for hair dyeing or bleaching of the present invention has a transparent appearance and exhibits little change in viscosity over time even under low and high temperature conditions.

The present invention will be described in detail below. Note that all units indicating content are mass% unless otherwise specified.

In this invention, low temperature means approximately 0°C to 10°C, and high temperature means approximately 35°C to 45°C.

The first agent composition for hair dyeing or bleaching in the present invention contains (A) an anionic polymer from the viewpoint of viscosity change over time under low and high temperature conditions.

The component (A) used in the present invention is not particularly limited, but examples thereof include carboxyvinyl polymer, carboxymethylcellulose, xanthan gum, carrageenan, sodium alginate, pectin, furcellaran, gum arabic, ghatti gum, karaya gum, tragacanth gum, poly(meth)acrylic acid, alkyl acrylate-alkyl methacrylate-polyoxyethylene (20) stearyl ether copolymer, alkyl acrylate-alkyl methacrylate-polyoxyethylene (25) lauryl ether copolymer, alkyl acrylate-alkyl methacrylate-polyoxyethylene (25) lauryl ether copolymer, alkyl acrylate-alkyl methacrylate-polyoxyethylene (25) Examples of the copolymer include behenyl ether copolymer, acrylic acid/alkyl methacrylate copolymer, acrylic acid/vinyl neodecanoate copolymer, (alkyl acrylate/octylacrylamide) copolymer, (acrylates/steareth-20 itaconate) copolymer, (acrylates/ceteth-20 itaconate) copolymer, (acrylates/aminoacrylate/C10-30 acrylic PEG-20 itaconate) copolymer, alkyl methacrylate (C1-C4 and C8), (ammonium acryloyldimethyltaurate/VP) copolymer, and the like, which may contain one or more of these. Among these, carboxyvinyl polymer and carboxymethylcellulose are preferred from the viewpoint of viscosity change over time under low and high temperature conditions.

The content of the (A) component used in the present invention is not particularly limited, but is preferably 1 to 5%, and more preferably 1.5 to 3%. If the content of the (A) component is less than 1% or if the content of the (A) component is more than 5%, there is a risk of significant change in viscosity over time under low and high temperature conditions.

In terms of the change in viscosity over time and transparency under low and high temperature conditions, it is preferable that the first agent composition for hair dyeing or bleaching in the present invention is substantially free of higher alcohols and hydrocarbons having 12 to 24 carbon atoms. Note that "substantially free of" means that they are not intentionally included, and also includes cases where they are unavoidably included (unreacted substances and by-products contained in the raw materials).

Specific examples of the higher alcohols having 12 to 24 carbon atoms include cetyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, myristyl alcohol, arachidyl alcohol, behenyl alcohol, and 2-decyltetradecanol.

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

In terms of the change in viscosity over time and transparency under low and high temperature conditions, the first agent composition for hair dyeing or bleaching in the present invention preferably contains no more than 2% of oily components other than higher alcohols and hydrocarbons having 12 to 24 carbon atoms, more preferably no more than 1%, and even more preferably contains substantially no oily components.

Examples of oily components other than the higher alcohols and hydrocarbons having 12 to 24 carbon atoms include fats and oils, waxes, higher fatty acids, alkyl glyceryl ethers, esters, etc.

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, macadamia nut oil, castor oil, coconut oil, evening primrose oil, avocado oil, peach kernel oil, rosehip oil, argan oil, orange oil, ylang-ylang flower oil, apricot kernel oil, corn oil, pomegranate seed oil, sesame oil, spearmint oil, camellia seed oil, peppermint oil, Hippophae rhamnoides seed oil, Nigella sativa seed oil, pelargonium graveolens oil, bergamot seed oil, loofah seed oil, mink oil, meadowfoam oil, eucalyptus oil, tea oil, lemon fruit oil, rosemary oil, sunflower oil, peanut oil, cottonseed oil, pistachio oil, kukui nut oil, etc.

Specific examples of the wax include beeswax, candelilla wax, carnauba wax, jojoba oil, rice bran wax, shellac wax, 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 lanolinic 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, selachyl alcohol, isostearyl glyceryl ether, and diisononyl ether.

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, decyl myristate, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, cetyl ricinoleate, isostearyl laurate, isotridel myristate, 2-hexyldecyl myristate, isostearyl myristate, myristyl oleate ... 2-Octyldodecyl lysate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, 2-hexyldecyl stearate, isodecyl oleate, isodecyl oleate, 2-octyldodecyl oleate, 2-octyldodecyl oleate, 2-octyldodecyl linoleate, ethyl isostearate, isopropyl isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, hexyl isostearate, di-2-ethylhexa Ethylene glycol dioleate, ethylene glycol dicaprylate, propylene glycol dicaprylate, propylene glycol dicaprate, propylene glycol dicaprate, neopentyl glycol dicaprylate, neopentyl glycol di-2-ethylhexanoate, glyceryl tricaprylate, glyceryl tri-2-ethylhexanoate, glyceryl tricaprylate, glyceryl triundecylate, glyceryl triisopalmitate, glyceryl triisostearate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate Examples include lylolpropane, pentaerythritol tetra 2-ethylhexanoate, pentaerythritol tetramyristate, pentaerythritol tetraisostearate, 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearyl isostearate, and 2-octyl isostearate.

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

The alkaline agent used in the present invention is not particularly limited, but examples thereof include ammonia, alkanolamines, organic amines, hydroxides of alkali metals or alkaline earth metals, carbonates, hydrogencarbonates, metasilicates, phosphates, basic amino acids, etc., and one or more of these may be contained.

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

Specific examples of the organic amines 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 hydroxides used in the present invention include lithium hydroxide, sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, etc.

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

Specific examples of the bicarbonate salts used in the present invention include sodium bicarbonate, potassium bicarbonate, and ammonium bicarbonate.

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

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

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

The alkaline agent used in the present invention is preferably ammonia or an alkanolamine from the viewpoint of hair dyeing and bleaching properties.

The content of the alkaline agent used in the present invention is not particularly limited, but from the viewpoint of hair dyeing and bleaching properties, 0.5 to 8% is preferable. If the content of the alkaline agent is less than 0.5%, sufficient hair dyeing and bleaching properties may not be obtained. Furthermore, if the content of the alkaline agent exceeds 8%, it is difficult to expect any further improvement in hair dyeing and bleaching properties.

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

The oxidation dyes used in the present invention are not particularly limited, but examples include paraphenylenediamine, toluene-2,5-diamine, orthoaminophenol, paraaminophenol, metaaminophenol, 5-aminoorthocresol, 2,6-diaminopyridine, 2,4-diaminophenoxyethanol, 1-naphthol, resorcin, and salts thereof. In addition, those listed in the "Standards for Quasi-Drug Ingredients 2006 Integrated Edition" (published November 2013, Yakuji Nipposha) can also be used as appropriate. These can be contained alone or in combination of two or more kinds.

The content of the oxidation dye used in the present invention is not particularly limited, but from the viewpoint of hair dyeability, it is preferably 0.2 to 10%. If the content of the oxidation dye is less than 0.2%, sufficient hair dyeability may not be obtained. Furthermore, if the content of the oxidation dye is more than 10%, it is difficult to expect any further improvement in hair dyeability.

In the present invention, the content of the oxidation dye refers to the content of the oxidation dye converted into a pure content. For example, for an oxidation dye in the form of a salt, such as 2,4-diaminophenoxyethanol hydrochloride, the content refers to the content converted into the mass of the non-salt form.

The appearance of the first agent composition for hair dyeing or bleaching in the present invention is transparent from the viewpoint of aesthetic appearance.

In the present invention, "transparent" means that when 5 g of the first agent composition for hair dyeing or bleaching is spread evenly over an area of 5 cm square on a piece of paper on which font 11 characters have been printed, the characters are still legible.

The viscosity of the hair dyeing or bleaching first agent composition in the present invention is not particularly limited, but is preferably 5,000 to 100,000 mPa·s, more preferably 1,000 to 70,000 mPa·s, and even more preferably 20,000 to 40,000 mPa·s under conditions of 20°C. If the viscosity of the hair dyeing or bleaching first agent composition is less than 5,000 mPa·s, there is a risk of dripping or splashing during application. Furthermore, if the viscosity of the hair dyeing or bleaching first agent composition exceeds 100,000 mPa·s, there is a risk of reduced mixability with the hair dyeing or bleaching second agent composition and reduced applicability to hair.

The viscosity of the first agent composition for hair dyeing or bleaching in the present invention was measured by filling a 140 g sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120 g and measuring it at 20°C using a B-type viscometer (Model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 4 rotor for 1 minute at a rotation speed of 12 rpm for viscosities less than 50,000 mPa·s and at a rotation speed of 6 rpm for viscosities of 50,000 mPa·s or more.

The viscosity (V) of the first agent composition for hair dyeing or bleaching immediately after preparation in the present invention was measured after filling 120 g of the first agent composition for hair dyeing or bleaching obtained by conventional method into a 140 g sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and leaving it at 20°C for one day to adjust the temperature.

The viscosity (V5) of the hair dyeing or bleaching first agent composition of the present invention after storage in a refrigerator at 5°C for 30 days was measured by filling 120 g of the hair dyeing or bleaching first agent composition prepared by a conventional method into a 140 g sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), storing it in a refrigerator at 5°C for 30 days, removing it from the refrigerator, and leaving it at 20°C for 1 day to adjust the temperature. From the viewpoint of viscosity change over time under low temperature conditions, the ratio (V5/V) of the viscosity (V5) to the viscosity (V) is preferably 0.7 to 1.3, more preferably 0.8 to 1.2, and even more preferably 0.9 to 1.1.

The viscosity (V40) of the hair dye or bleach first agent composition of the present invention after storage in a 40°C incubator was measured by filling 120 g of the hair dye or bleach first agent composition prepared by a conventional method into a 140 g sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), storing it in a 40°C incubator for 30 days, removing it from the incubator, and leaving it at 20°C for 1 day to adjust the temperature. From the viewpoint of viscosity change over time under high temperature conditions, the ratio (V40) of viscosity (V) to viscosity (V) (V40/V) is preferably 0.7 to 1.3, more preferably 0.8 to 1.2, and even more preferably 0.9 to 1.1.

In addition to the above-mentioned components, the first agent composition for hair dyeing or bleaching in the present invention may contain, as necessary, one or more of various components used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc. other than the above-mentioned components, within the range that does not impair the effects of the present invention, such as direct dyes, acid dyes, basic dyes, HC dyes, nonionic surfactants, amphoteric surfactants, cationic surfactants, anionic surfactants, surfactants, nonionic polymers, amphoteric polymers, cationic polymers, anionic polymers other than the component (A), silicones, polyhydric alcohols, moisturizers, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, metal sequestering agents, antioxidants, plant extracts, herbal extracts, vitamins, preservatives, dyes, pigments, powders, pH adjusters, UV absorbers, fragrances, etc. However, the present invention is not limited to these examples.

The formulation of the first agent composition for hair dyeing or bleaching in the present invention is preferably in the form of a cream, milky lotion or gel, from the viewpoints of spreadability on hair and prevention of dripping or splashing during application, and is more preferably in the form of a gel.

The pH of the first agent 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 agent composition for hair dyeing or bleaching in the present invention at 20°C was measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.) after the first agent composition for hair dyeing or bleaching obtained by conventional method was left to stand at 20°C for one day and the temperature was adjusted.

The container for filling and storing the first agent composition for hair dyeing or bleaching used in the present invention is not particularly limited, but examples include plastic containers, aluminum tube containers, plastic tube containers, aerosol containers, pouch containers, etc.

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

In the evaluation tests shown in this specification, the components and their contents in the first agent composition for hair dyeing or bleaching were changed. The units showing the contents of each component are all mass %, and the compositions were prepared in the usual manner.

<Appearance>
In the evaluation test for "appearance" shown in this specification, 5 g of the first agent composition for hair dyeing or bleaching prepared by a conventional method was weighed out onto a piece of paper on which font 11 characters were printed, and spread evenly over an area of 5 cm square. The characters were visually confirmed to be legible, and evaluated according to the following evaluation criteria.

<Appearance evaluation criteria>
Transparent: The text can be read.
Opaque: The text cannot be read.

<Changes in viscosity over time under low temperature conditions>
In the evaluation test of "change in viscosity over time under low temperature conditions" shown in the present specification, 120 g of the first agent composition for hair dyeing or bleaching prepared by a conventional method was filled into a 140 g sample bottle (food 140: manufactured by Daiichi Glass Co., Ltd.) and stored in a refrigerator at 5°C for 30 days, then removed from the refrigerator and left at 20°C for 1 day to adjust the temperature, and then measured with a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 4 rotor for 1 minute under the conditions of a rotation speed of 12 rpm for viscosities less than 50,000 mPa·s and a rotation speed of 6 rpm for viscosities of 50,000 mPa·s or more. The change in viscosity over time under low temperature conditions was evaluated by calculating the ratio (V5)/(V) of the viscosity after 30 days of storage in a refrigerator at 5°C to the viscosity (V) immediately after preparation, according to the following evaluation criteria.

<Evaluation criteria for viscosity change over time under low temperature conditions>
◎: 0.9 or more and less than 1.1 ○: 0.8 or more and less than 0.9 or 1.1 or more and less than 1.2 △: 0.7 or more and less than 0.8 or 1.2 or more and less than 1.3 ×: less than 0.7 or 1.3 or more

<Changes in viscosity over time under high temperature conditions>
In the evaluation test of "change in viscosity over time under high temperature conditions" shown in the present specification, 120 g of the first agent composition for hair dyeing or bleaching prepared by a conventional method was filled into a 140 g sample bottle (food 140: manufactured by Daiichi Glass Co., Ltd.) and stored in a 40°C incubator for 30 days, then removed from the incubator and allowed to stand at 20°C for 1 day to adjust the temperature, and then measured with a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) using a No. 4 rotor for 1 minute under the conditions of a rotation speed of 12 rpm for viscosities less than 50,000 mPa·s and a rotation speed of 6 rpm for viscosities of 50,000 mPa·s or more. The change in viscosity over time under low temperature conditions was evaluated by calculating the ratio (V40)/(V) of the viscosity after 30 days of storage in a 40°C incubator to the viscosity (V) immediately after preparation, according to the following evaluation criteria.

<Evaluation criteria for viscosity change over time under high temperature conditions>
◎: 0.9 or more and less than 1.1 ○: 0.8 or more and less than 0.9 or 1.1 or more and less than 1.2 △: 0.7 or more and less than 0.8 or 1.2 or more and less than 1.3 ×: less than 0.7 or 1.3 or more

Examples 1 to 14 in Tables 1 and 2 showed less change in viscosity over time even under low and high temperature conditions compared to Comparative Examples 1 to 4 in Tables 1 and 2.

Examples 12 to 14 are shown below.

Example 12
First agent composition for hair dyeing
Component content (mass%)
(A) Carboxyvinyl polymer *1 1.5
2,4-Diaminophenoxyethanol hydrochloride 0.2
Toluene-2,5-diamine 1.2
Paraaminophenol 0.6
Meta aminophenol 0.2
Resorcinol 0.8
5-amino orthocresol 0.2
Monoethanolamine 6.4
Ascorbic acid 0.5
Sodium sulfite 0.2
Diethylenetriaminepentaacetic acid pentasodium 1.0
Dimethyldiallylammonium chloride/acrylamide copolymer 0.3
Purified water Residual total 100.0
Viscosity (V) 22,980mPa・s
Viscosity (V5) 24,530mPa・s
Viscosity (V40) 24,260mPa・s
(V5)/(V) 1.07
(V40)/(V) 1.06
pH (20℃) 10.3
Appearance: Transparent *: Lubrizol Corporation: CARBOPOL ULTREZ 10 POLYMER

Example 13
First agent composition for hair dyeing
Component content (mass%)
(A) Carboxymethylcellulose*2 2.5
2,4-Diaminophenoxyethanol hydrochloride 0.2
Toluene-2,5-diamine 1.2
Paraaminophenol 0.6
Meta aminophenol 0.2
Resorcinol 0.8
5-amino orthocresol 0.2
Monoethanolamine 6.4
Ascorbic acid 0.5
Sodium sulfite 0.2
Diethylenetriaminepentaacetic acid pentasodium 1.0
Purified water Residual total 100.0
Viscosity (V) 42,980mPa・s
Viscosity (V5) 45,130mPa・s
Viscosity (V40) 42,120mPa・s
(V5)/(V) 1.05
(V40)/(V) 0.98
pH (20℃) 10.6
Appearance: Transparent

(Example 14)
First agent composition for bleaching
Component content (mass%)
(A) Carboxyvinyl polymer *1 2.0
Ammonia water (25%) 4.0
Tetrasodium ethylenediaminetetraacetate 0.5
Purified water Remaining total 100.00
Viscosity (V) 35,600mPa・s
Viscosity (V5) 36,310mPa・s
Viscosity (V40) 33,800mPa・s
(V5)/(V) 1.02
(V40)/(V) 0.95
pH (20℃) 11.0
Appearance: Transparent

*1: Lubrizol Corporation: CARBOPOL ULTREZ 10 POLYMER
*2: Daiichi Kogyo Seiyaku Co., Ltd.: CMC Celogen HE-1500F

The present invention provides a first agent composition for hair dyeing or bleaching that contains an alkaline agent, has a transparent appearance, and exhibits little change in viscosity over time even under low and high temperature conditions.

Claims (2)

A first agent composition for hair dyeing or bleaching containing an alkaline agent,
(A) One or more selected from carboxyvinyl polymer and carboxymethyl cellulose
Contains 1.5 to 3 mass %
It is substantially free of higher alcohols having 12 to 24 carbon atoms , hydrocarbons , and oily components ,
the ratio (V5)/(V) of the viscosity (V5) after storage for 30 days in a refrigerator at 5°C to the viscosity (V) immediately after preparation of the first agent composition for hair dyeing or bleaching, and the ratio (V40) of the viscosity (V40) after storage for 30 days in a heater at 40°C to the viscosity (V) immediately after preparation of the first agent composition for hair dyeing or bleaching, are both 0.9 to 1.1;
A first agent composition for hair dyeing or bleaching, characterized in that it has a transparent appearance. 2. The first agent composition 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 5,000 to 100,000 mPa·s.