JP2024020006A - First agent composition for hair dyeing or bleaching - Google Patents

Abstract

[Problem] To provide a first agent composition for hair dyeing or bleaching that has good viscosity stability after storage at 50°C, emulsion stability when stored at 50°C and 60°C, and also has good finger compatibility during rinsing. do. [Solution] (A) one or more selected from dimethyldiallylammonium chloride/acrylamide copolymer or acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer, (B) polydimethyldimethylenepyrrolidinium chloride or dimethyl chloride A hair dye containing one or more selected from diallylammonium/acrylic acid copolymers, (C) a polyoxyethylene alkyl ether type nonionic surfactant, and (D) a higher alcohol having an alkyl chain having 12 to 22 carbon atoms. A first agent composition for use or decolorization. [Selection diagram] None

Description

The present invention relates to a first agent composition for hair dyeing or bleaching, which has particularly good viscosity stability after storage at 50°C, emulsion stability when stored at 50°C and 60°C, and also has good finger compatibility during rinsing. The present invention relates to a first agent composition for hair dyeing or bleaching.

Hair dyes, bleaching agents, and the like are conventionally known as agents for dyeing or bleaching hair. As a hair dye or bleaching agent, a two-part composition consisting of a first part composition containing an alkaline agent or an oxidizing dye and a second part composition containing an oxidizing agent is widely used. These are mixed immediately before use and applied to the hair. Usually, multi-component hair dyes and bleaching agents are cream-like or emulsion-like emulsion compositions for the purpose of good mixability, ease of application to hair, and reduction of hair damage. .

However, since the first part composition for hair dyeing or bleaching contains high concentrations of alkaline agents or oxidative dyes, it is difficult to maintain the emulsion stability of the first part composition for hair dyeing or bleaching, especially It is difficult to maintain emulsion stability when exposed to high temperature conditions for long periods, such as inside a car that gets hot in the summer or in a container used for transportation overseas. The agent composition may undergo separation. In addition, the first part composition for hair dyeing or bleaching that has been exposed to high temperature conditions for a long time may change in viscosity compared to the first part composition for hair dyeing or bleaching immediately after preparation. Mixability with the second agent composition contained therein may be reduced. As a result, uneven dyeing or dripping may occur from the hair, so a first agent composition for hair dyeing or bleaching that can be used stably even when exposed to high temperature conditions for a long time is desired. ing.

Furthermore, hair may be damaged by alkaline agents and oxidizing agents contained in hair dyes and bleaching agents, resulting in deterioration in the feel of the hair, such as dryness and stiffness. In particular, when rinsing hair dyes and bleaches after treatment, the hair tends to get tangled, causing a squeaky or stiff feeling, so hair dyes and bleaches need to be able to run smoothly with your fingers when rinsing after treatment. There is.

In Patent Document 1, a first agent composition for hair dyeing or bleaching containing a quaternary ammonium type cationic surfactant, an anionic surfactant which is an alkyl sulfate or a salt thereof, is used at high temperatures (50°C and It is disclosed that the stability of the formulation at 60° C. can be sufficiently improved.

Patent Document 2 contains a higher alcohol having 12 to 24 carbon atoms, a polyoxyethylene alkyl ether type nonionic surfactant, a hydrocarbon, and an alkali agent, the content is in a specific ratio, and the viscosity at 20°C is It is disclosed that a first agent composition for hair dyeing and bleaching, which is characterized by a pressure of 10,000 to 100,000 mPa·s, can improve the ease with which the fingers pass through during rinsing.

JP2017-226637A Japanese Patent Application Publication No. 2021-138634

However, in Patent Document 1, the stability of the formulation at high temperatures has been studied, but the viscosity stability that can withstand long-term storage conditions at high temperatures (50°C) and the ease of rinsing with fingers are not considered. has not been considered.

In Patent Document 2, the ease of passing through the fingers during rinsing has been studied, but there has been no study on viscosity stability and formulation stability that can withstand long-term storage conditions at high temperatures (50°C). do not have.

Therefore, the present invention provides a first agent composition for hair dyeing or bleaching that has good viscosity stability after storage at 50°C, emulsion stability when stored at 50°C and 60°C, and also has good finger compatibility during rinsing. The challenge is to provide the following.

As a result of intensive study to solve the above problem, the inventor of the present invention found that
(A) one or more selected from dimethyldiallylammonium chloride/acrylamide copolymer or acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer,
(B) one or more selected from polydimethyldimethylenepyrrolidinium chloride or dimethyldiallylammonium chloride/acrylic acid copolymer,
(C) polyoxyethylene alkyl ether type nonionic surfactant,
(D) The first agent composition for hair dyeing or bleaching containing a higher alcohol having an alkyl chain having 12 to 22 carbon atoms has viscosity stability after storage at 50°C and emulsion stability when stored at 50°C and 60°C. The present inventors have found that the product has good properties, and also has good finger penetration during rinsing, leading to the completion of the present invention.

The present invention provides a first agent composition for hair dyeing or bleaching that has good viscosity stability after storage at 50°C, emulsion stability when stored at 50°C and 60°C, and also has good finger compatibility during rinsing. provide.

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

The present invention provides (A) one or more selected from dimethyldiallylammonium chloride/acrylamide copolymer or acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer, (B) polydimethyldimethylenepyrrolidinium chloride or dimethyl chloride. A hair dye containing one or more selected from diallylammonium/acrylic acid copolymers, (C) a polyoxyethylene alkyl ether type nonionic surfactant, and (D) a higher alcohol having an alkyl chain having 12 to 22 carbon atoms. The present invention relates to a first agent composition for use or decolorization.

The present invention contains one or more selected from (A) dimethyldiallylammonium chloride/acrylamide copolymer or acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer from the viewpoint of ease of finger passage during rinsing.

The content of the component (A) used in the present invention is preferably 0.04 to 0.85%, more preferably 0.08 to 0.6%, and even more preferably 0.15 to 0.45%. be. If the content of component (A) is less than 0.04% or more than 0.85%, the ease of rinsing with fingers may be insufficient.

The present invention contains one or more selected from (B) polydimethyldimethylenepyrrolidinium chloride or dimethyldiallylammonium chloride/acrylic acid copolymer from the viewpoint of viscosity stability after storage at 50°C.

The content of the component (B) used in the present invention is preferably 0.02 to 2.4%, more preferably 0.04 to 1.2%. If the content of component (B) is less than 0.02% or more than 2.4%, there is a possibility that the viscosity stability after storage at 50°C may not be maintained sufficiently.

The first part composition for hair dyeing or bleaching of the present invention has a mass ratio of the component (A) to the component (B) ( A)/(B) is not particularly limited, but is preferably 0.10 to 12.50, more preferably 0.21 to 6.25.

The present invention contains (C) a polyoxyethylene alkyl ether type nonionic surfactant from the viewpoint of emulsion stability during storage at 50°C and 60°C.

The component (C) used in the present invention is not particularly limited, but examples thereof include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene behenyl ether, etc. can be mentioned. The above-mentioned (C) component may contain one or more kinds.

Specifically, the component (C) used in the present invention includes polyoxyethylene lauryl ether (2E.O.) "HLB=6.4", polyoxyethylene lauryl ether (4E.O.) "HLB=9" .7", polyoxyethylene lauryl ether (9E.O.) "HLB=13.6", polyoxyethylene lauryl ether (21E.O.) "HLB=16.7", polyoxyethylene lauryl ether (25E.O.) "HLB=16.7" O.) “HLB=17.1”, polyoxyethylene cetyl ether (1E.O.) “HLB=3.1”, polyoxyethylene cetyl ether (2E.O.) “HLB=5.3”, polyoxyethylene cetyl ether (2E.O.) “HLB=5.3”, Oxyethylene cetyl ether (5E.O.) "HLB = 9.5", polyoxyethylene cetyl ether (6E.O.) "HLB = 10.4", polyoxyethylene cetyl ether (7E.O.) "HLB = 11.2'', polyoxyethylene cetyl ether (8E.O.) ``HLB = 11.9'', polyoxyethylene cetyl ether (10E.O.) ``HLB = 12.9'', polyoxyethylene cetyl ether ( 13E.O.) “HLB=14.1”, polyoxyethylene cetyl ether (15E.O.) “HLB=14.6”, polyoxyethylene cetyl ether (20E.O.) “HLB=15.7” , polyoxyethylene cetyl ether (23E.O.) "HLB = 16.1", polyoxyethylene cetyl ether (25E.O.) "HLB = 16.4", polyoxyethylene cetyl ether (30E.O.) "HLB=16.9", polyoxyethylene cetyl ether (40E.O.) "HLB=17.6", polyoxyethylene cetyl ether (150E.O.) "HLB=19.3", polyoxyethylene stearyl Ether (2E.O.) "HLB=4.9", polyoxyethylene stearyl ether (4E.O.) "HLB=7.9", polyoxyethylene stearyl ether (11E.O.) "HLB=12. 8", polyoxyethylene stearyl ether (15E.O.) "HLB = 14.2", polyoxyethylene stearyl ether (20E.O.) "HLB = 15.3", polyoxyethylene stearyl ether (30E.O.) ) "HLB=16.6", polyoxyethylene stearyl ether (40E.O.) "HLB=17.3", polyoxyethylene behenyl ether (5E.O.) "HLB=8.1", polyoxy Ethylene behenyl ether (10E. O. ) "HLB=11.5", polyoxyethylene behenyl ether (20E.O.) "HLB=14.6", polyoxyethylene behenyl ether (30E.O.) "HLB=16.0", etc. . Among them, polyoxyethylene lauryl ether (21E.O.) "HLB=16.7" and polyoxyethylene cetyl ether (6E.O.) "HLB= 10.4", polyoxyethylene cetyl ether (15E.O.) "HLB = 14.6", polyoxyethylene cetyl ether (40E.O.) "HLB = 17.6", polyoxyethylene cetyl ether (150E. .O.) "HLB = 19.3", polyoxyethylene stearyl ether (15E.O.) "HLB = 14.2", polyoxyethylene stearyl ether (30E.O.) "HLB = 16.6", Polyoxyethylene behenyl ether (5E.O.) "HLB=8.1" and polyoxyethylene behenyl ether (30E.O.) "HLB=16.0" are preferred. Note that "E.O." in parentheses indicates ethylene oxide, and the number indicates the number of moles of ethylene oxide added.

The component (C) used in the present invention preferably contains two or more kinds from the viewpoint of improving emulsion stability during storage at 50°C.

The content of the component (C) used in the present invention is preferably 1 to 6%, more preferably 2 to 5%. If the content of component (C) is less than 1% or more than 6%, the emulsion stability during storage at 50°C and 60°C may be impaired.

The average HLB value of the component (C) used in the present invention is preferably 12 to 18, more preferably 14 to 17. When the average HLB value of the component (C) is less than 12 or more than 18, the emulsion stability during storage at 50°C and 60°C may be impaired.

In the present invention, "HLB" is an abbreviation for HYDROPHILE-LIPOPHILE BALANCE, and is a parameter representing the relative strength of hydrophilicity and lipophilicity of a surfactant molecule. . The larger the HLB value, the stronger the hydrophilicity, and the smaller the HLB value, the stronger the lipophilicity.

The HLB value in the present invention is a value determined by the Griffin equation, and the average HLB value means the HLB value of the component (C) alone when one component is used alone. In addition, when using a combination of two or more types of polyoxyethylene alkyl ether type nonionic surfactants, the polyoxyethylene alkyl ether type nonionic surfactants determined based on the Griffin's formula and each content. Means the average HLB value of the entire agent.

In the present invention, from the viewpoint of viscosity stability after storage at 50°C and emulsion stability during storage at 50°C and 60°C, (D) a higher alcohol having an alkyl chain having 12 to 22 carbon atoms is contained.

Examples of the component (D) used in the present invention include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, aracyl alcohol, and behenyl alcohol. The above-mentioned (D) component may contain one or more types. Among these, cetanol and stearyl alcohol are preferred from the viewpoint of viscosity stability after storage at 50°C and emulsion stability during storage at 50°C and 60°C.

The content of the component (D) used in the present invention is preferably 2 to 12%, more preferably 3 to 10%. If the content of component (D) is less than 2%, there is a risk that the viscosity stability after storage at 50°C may not be maintained sufficiently, and the emulsion stability during storage at 50°C and 60°C may be impaired. If the temperature exceeds 50°C, the emulsion stability during storage at 50°C and 60°C may be impaired.

The first part composition for hair dyeing or bleaching of the present invention contains an alkaline agent.

The alkaline agent used in the present invention is not particularly limited, but includes, for example, alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, and monoisopropanolamine, ammonia, sodium hydroxide, potassium hydroxide, sodium carbonate, and carbonate. Examples include inorganic alkalis such as potassium, sodium hydrogen carbonate, and ammonium hydrogen carbonate, basic amino acids such as arginine and lysine, and salts thereof, and one or more of these may be contained.

The content of the alkaline agent used in the present invention is preferably 0.2 to 10.0%, more preferably 0.4 to 8.0%.

Among the first part compositions for hair dyeing or bleaching of the present invention, the first part composition for hair dyeing may contain an oxidative dye.

The oxidation dye used in the first agent composition for hair dyeing of the present invention is not particularly limited, but examples include paraphenylene diamine, toluene-2,5-diamine, 5-aminoorthocresol, para-aminophenol, 2,4 -Diaminophenoxyethanol, 2-nitro-p-phenylenediamine, picramic acid, 2-amino-5-nitrophenol, and their salts. Those listed in Yakuji Nipposha, published on November 25th can be used as appropriate. These dyes may be contained alone or in combination of two or more.

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 components used in the above, such as direct dyes, acid dyes, basic dyes, HC dyes, surfactants other than the above component (C), polymers other than the above (A) components and the above (B) components, oil-based Ingredients, moisturizers, thickeners, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, sequestrants, antioxidants, plant extracts, crude drug extracts, vitamins, preservatives, dyes, pigments, powders The composition may contain one or more selected from the group consisting of body, pH adjuster, ultraviolet absorber, fragrance and the like. However, the present invention is not limited to these examples.

The first agent composition for hair dyeing or bleaching of the present invention is preferably in the form of a cream or a milky lotion.

The viscosity of the first part composition for hair dyeing or bleaching of the present invention at 20°C is 5,000 to 80,000 mPa·s from the viewpoint of miscibility with the second part composition and dripping. is preferred.

The viscosity of the first part composition for hair dyeing or bleaching of the present invention at 20°C was determined by filling 120g into a sample bottle (Foods 140: manufactured by Daiichi Glass Co., Ltd.) and leaving it for 24 hours at 20°C. Later, using a B-type viscometer (model: digital viscometer TVM-10M, manufactured by Toki Sangyo Co., Ltd.) using a No. M4 rotor for 1 minute, if the viscosity is less than 50,000 mPa・s, the rotation speed is 12 rpm, and the viscosity is 50,000 mPa.・Measurements were made under the condition of a rotational speed of 6 rpm for s or more.

The initial viscosity of the first part composition for hair dyeing or bleaching in the present invention may change compared to the initial viscosity when exposed to high temperature conditions for a long time. When the viscosity of the first part composition for hair dyeing or bleaching changes compared to the initial viscosity, the miscibility with the second part composition may deteriorate.

The viscosity of the second part composition in the present invention is a viscosity that is easy to mix with the initial viscosity of the first part composition for hair dyeing or bleaching, from the viewpoint of miscibility with the first part composition for hair dyeing or bleaching. It is preferable to set it to .

The ratio (V2/V1) of the viscosity (V2) after storage at 50°C to the initial viscosity (V1) of the first part composition for hair dyeing or bleaching of the present invention is preferably 0.4 to 1.6, or more. Preferably it is 0.6 to 1.4. When V2/V1 is less than 0.4 or more than 1.6, there is a possibility that the mixability with the second agent composition will be poor, which may cause uneven dyeing or dripping from the hair.

In the present invention, the initial viscosity (V1) is defined as the initial viscosity (V1) after filling 120 g of the first agent composition for hair dyeing or bleaching prepared by a conventional method into a 140 g sample bottle, and then under 20°C for 24 hours. After storage, use a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) at 20°C for 1 minute using a No. M4 rotor. If the viscosity is less than 50,000 mPa・s, the rotation speed 12 rpm, and viscosity values of 50,000 mPa·s or more are viscosity values measured under the condition of a rotational speed of 6 rpm.

The viscosity (V2) after storage at 50°C in the present invention refers to the 140 g sample bottle (Food 140: Daiichi Glass Co., Ltd. After filling 120g into a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.), it was stored at 50°C for one month, and left at 20°C for 24 hours. The values were measured using a No. M4 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 first agent composition for hair dyeing or bleaching of the present invention at 20° C. is preferably 9.0 to 12.0.

The pH of the first part composition for hair dyeing or bleaching of the present invention at 20°C is as follows: The sample was left standing and measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The first agent composition for hair dyeing or bleaching of the present invention is filled into various containers such as plastic containers, aluminum tube containers, aerosol containers, pouch containers, etc., and stored until use.

The present invention will be explained in more detail with reference to Examples below, but these are not intended to limit the present invention in any way.

In the evaluation test shown in this specification, the components contained in the first agent composition for hair dyeing or bleaching and the content thereof were variously changed. All units indicating the content of each component are mass %, and were prepared by a conventional method.

"Viscosity stability after storage at 50℃"
In the evaluation test related to "viscosity stability after storage at 50°C" shown in this specification, viscosity (V2)/initial viscosity (V1) after storage at 50°C was calculated and evaluated based on the following evaluation criteria.

<Evaluation criteria for viscosity stability after storage at 50°C>
◎: V2/V1 = 0.6 or more and 1.4 or less ○: V2/V1 = more than 0.4 and less than 0.6 or more than 1.4 and less than 1.6 ×: V2/V1 = 0.4 or less or 1.6 or more

"Emulsification stability when stored at 50℃"
In the evaluation test related to "emulsion stability during storage at 50°C" shown in this specification, a 140 g sample bottle (foodstuff 140 : manufactured by Daiichi Glass Co., Ltd.), stored at 50°C for one month, and visually confirmed the appearance condition. Evaluation was made as shown below, based on the state in which water droplets could be seen on the screen) and the state of separation (state in which the film was clearly separated into two or more layers).

<Evaluation criteria for emulsion stability during storage at 50°C>
◎: No change was observed in the composition after storage for one month at 50°C.
○: After being stored for one month at 50° C., slight water spewing was observed in the composition.
Δ: After being stored for one month at 50° C., some water spewing was observed in the composition.
×: Separation of the composition was confirmed in less than one month under 50°C conditions.

<Emulsification stability when stored at 60°C>
In the evaluation test related to "emulsion stability during storage at 60°C" shown in this specification, a 140 g sample bottle (food 140 (manufactured by Daiichi Glass Co., Ltd.), stored at 60℃ for one week, visually confirmed the appearance condition, and sprinkled the first part composition for hair dyeing or bleaching (on the surface). Evaluation was made as shown below, based on the state in which water droplets could be observed) and the state of separation (state in which the film was clearly separated into two or more layers).

<Evaluation criteria for emulsion stability during storage at 60°C>
◎: No change was observed in the composition after storage for one week at 60°C.
○: After being stored for one week at 60° C., slight water spouting was observed in the composition.
Δ: After being stored for one week at 60° C., some water spewing was observed in the composition.
×: Separation of the composition was confirmed in less than one week under 60°C conditions.

<Easy to run your fingers through the hair when rinsing>
In the evaluation test related to "the ease with which the fingers run through the hair during rinsing" shown in this specification, a bundle of black hair (black human hair, manufactured by Beaulux Co., Ltd., model number: BS-A) was fixed with a rubber band, and 5± Adjust to 0.2 g, cut 20 cm from a rubber band, apply 0.8 g of sodium lauryl sulfate aqueous solution (5%), rub it in, and rinse with running water for 1 minute at a temperature of 20°C and a humidity of 25%. After air drying for 24 hours, 2.5 g of each of the first part composition and second part composition for hair dyeing or bleaching were weighed out, mixed in a cup, and then applied to the hair strands using a brush. After being left for 30 minutes at 25°C, the hair dyeing or bleaching composition adhering to the hair was washed away with running water for 1 minute. The feel of the hair at this time was evaluated as "how easily the hair runs through the fingers during rinsing".

<How to evaluate how well your hair runs through your fingers during rinsing>
In the evaluation test related to "how easily the fingers run through the hair during rinsing" shown in this specification, evaluation was performed by 10 panelists, and 2 points were given if the fingers ran well, and 0 points were given if the fingers ran poorly. When the case where it could not be said to be true was given 1 point, the total evaluation score of 10 panelists was calculated and evaluated using the following evaluation criteria.
<Evaluation criteria for how well your hair runs through your fingers during rinsing>
◎: 20-16 points ○: 15-10 points △: 9-5 points ×: 4 or less

The following second part composition was used for the evaluation test of the present invention.

<Second agent composition>
Component Content (mass%)
Hydrogen peroxide 5.80
Stearyltrimethylammonium chloride 0.24
Liquid paraffin 0.20
Polyoxyethylene stearyl ether (20E.O.) 0.26
Polyoxyethylene stearyl ether (30E.O.) 0.20
Hydroxyethane diphosphonic acid 0.12
Potassium hydroxide 0.05
Purified water 93.13
Total 100.00

From Examples 1 to 9 shown in Table 1, even if the type and content of the component (A) are changed, better results can be obtained in terms of ease of finger rinsing when rinsing hair compared to Comparative Example 1. was confirmed.

From Examples 10 to 14 shown in Table 2, even if the type and content of the component (B) were changed, better results were obtained in terms of viscosity stability after storage at 50°C compared to Comparative Examples 2 and 3. This was confirmed.

From Examples 15 to 20 shown in Table 3, even if the type and content of the component (C) were changed, better results were obtained in terms of emulsion stability during storage at 50°C and 60°C compared to Comparative Example 4. It has been confirmed that you can get it.
Regarding the "viscosity stability after storage at 50°C" of Comparative Example 4, separation was confirmed after storage at 50°C and viscosity measurement was impossible, so it was evaluated as "-".

From Examples 21 to 30 shown in Table 4, even if two or more of the above components (C) are contained and the content is changed, the emulsion stability during storage at 50°C and 60°C is better than in Comparative Example 4. It was confirmed that the results obtained were as follows.

From Examples 31 to 34 shown in Table 5, it was confirmed that even if the type and content of the component (D) were changed, good results were obtained regarding emulsion stability during storage at 50°C and 60°C. Regarding Comparative Example 5, it was separated immediately after preparation and it was not possible to perform each evaluation. Emulsion stability when stored at 50°C, emulsion stability when stored at 60°C, and ease of finger rinsing were evaluated as "-".

<Example 35>
(First agent composition for hair dyeing)
Component Content (mass%)
(A) Dimethyldiallylammonium chloride/acrylamide copolymer 0.25
(B) Polydimethyldimethylenepyrrolidinium chloride 0.40
(C) Polyoxyethylene cetyl ether (10E.O.)
(HLB:12.9) 1.30
(C) Polyoxyethylene cetyl ether (20E.O.)
(HLB:15.7) 0.50
(C) Polyoxyethylene cetyl ether (40E.O.)
(HLB:17.6) 2.20
(D) Cetanol 2.50
(D) Stearyl alcohol 2.00
Monoethanolamine 5.40
Ammonia 1.00
Liquid paraffin 3.00
Methyl polysiloxane 3.00
Highly polymerized methylpolysiloxane 0.20
Behenyltrimethylammonium chloride 2.40
Glycerin 4.00
Ascorbic acid 0.50
Sodium sulfite 0.50
Edetate tetrasodium tetrahydrate 0.20
Hydrochloric acid 2,4-diaminophenoxyethanol 0.10
Para-aminophenol 0.20
Meta-aminophenol 0.10
Resorcinol 0.20
5-aminoorthocresol 0.05
Toluene-2,5-diamine 0.20
Shea butter 0.01
Jojoba oil 0.01
Squalane 0.01
Hydrolyzed silk liquid 0.01
Purified water 69.76
Total 100.00
pH: 11.0
Initial viscosity V1: 22,000 mPa・s
Viscosity after storage at 50°C V2: 24,000mPa・s

Even when various tests were conducted using Example 35, no evaluation of "viscosity stability after storage at 50°C", "emulsion stability during storage at 50°C and 60°C", and "ease of rinsing" was achieved. was also good.

The present invention relates to a first part composition for hair dyeing or bleaching, which has good viscosity stability after storage at 50°C and emulsion stability when stored at 50°C and 60°C, and is also easy to pass through with fingers during rinsing. A good first agent composition for hair dyeing or bleaching can be obtained.

Claims (5)

(A) one or more selected from dimethyldiallylammonium chloride/acrylamide copolymer or acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer,
(B) one or more selected from polydimethyldimethylenepyrrolidinium chloride or dimethyldiallylammonium chloride/acrylic acid copolymer,
(C) polyoxyethylene alkyl ether type nonionic surfactant,
(D) A first agent composition for hair dyeing or bleaching containing a higher alcohol having an alkyl chain having 12 to 22 carbon atoms. The first part composition for hair dyeing or bleaching according to claim 1, wherein the mass ratio (A)/(B) of the component (A) and the component (B) is 0.1 to 12.5. The first part composition for hair dyeing or bleaching according to claim 1 or 2, which contains two or more types of the component (C). The first agent composition for hair dyeing or bleaching according to claim 1, wherein the average HLB value of the component (C) is 12 to 18. The initial viscosity V1 at 20°C is 5,000 to 80,000 mPa・s, and the viscosity ratio (V2/V1) of the viscosity (V2) after storage at 50°C to the initial viscosity (V1) at 20°C is 0.4 to The first agent composition for hair dyeing or bleaching according to claim 1, which has a molecular weight of 1.6.