Multi-agent hair cosmetic and hair treatment method

Abstract

To provide a multi-agent hair cosmetic that allows improved control of "kinks" and "waviness" in damaged hair, achieving volume down, and maintaining excellent control of "kinks" and "waviness" as well as sustained volume reduction even after the treated hair has been washed.SOLUTION: A multi-agent hair cosmetic includes a first agent and a second agent, the first agent containing 0.5-8 mass% of amino-modified silicone (A) and 0.1-1.2 mass% of a cationic acrylic polymer compound (B) based on 100 mass% of the first agent, and the second agent containing 0.01-3 mass% of an anionic polymer (C) and 0.01-2 mass% of a nonionic polymer (D) based on 100 mass% of the second agent.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a multi-component hair cosmetic composition and a hair treatment method. [Background technology]

[0002] Curly and wavy hair are major concerns for people of all ages. In addition, because hair is damaged by chemical treatments such as hair coloring and perms, and by daily heat treatments such as hair irons and hair dryers, in addition to curl and wave, dryness and frizz are also commonly cited as hair-related concerns.

[0003] Traditionally, hair straightening using a reducing agent has been used as a method to improve "curl" and "waves." Hair straightening using a reducing agent is advantageous in that the effect of improving "curl" and "waves" continues for a certain period of time even after shampooing. However, hair straightening has been problematic in that it may not be possible to perform the treatment on hair that has been severely damaged by chemical or heat treatment, or in that it may cause further damage. Therefore, there has been a demand for a technology that can address the problems of "curly" and "wavy" hair using hair cosmetics that do not contain reducing agents.

[0004] For example, Patent Document 1 discloses that by using a hair cosmetic composition containing at least one of a cationic polymer and an amphoteric polymer, an anionic polymer having an acrylic acid structure, and at least one of an amino-modified silicone and an aminopolyether-modified silicone, the composition provides a good feel when applied to hair, can suppress hair frizz under high humidity conditions, and is highly stable.

[0005] Patent Document 2 discloses that by using a multi-component hair treatment agent comprising a first component containing a specific carboxylic acid or carboxylate and an anionic surfactant, and a second component containing a specific aromatic sulfonic acid or its salt, and a cationic surfactant in a specific ratio, it is possible to improve not only the manageability of wet hair when it is dried, but also the shaping ability of the hair after drying, and further to impart smoothness to the hair.

[0006] Patent Document 3 discloses that by using a multi-component hair cosmetic composition in which the first component contains a specific amount of amino-modified silicone and the second component contains specific amounts of anionic polymer, polyol, nonionic polymer (D), and specific liquid oil (E), the hair is non-sticky, soft, easy to run fingers through to the ends, and manageable, and that the softness, ease of running fingers through to the ends, and manageability remain excellent for a certain period of time even after shampooing. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 2023-64089 [Patent Document 2] Japanese Patent Publication No. 2023-10976 [Patent Document 3] Patent Publication No. 2021-63030 Summary of the Invention [Problem to be solved by the invention]

[0008] The technology of Patent Document 1 was unable to prevent hair from frizzing under high humidity conditions after washing the finished hair. Furthermore, the finished hair was not manageable, had a moisturizing feel, and was difficult to run fingers through, leaving room for improvement.

[0009] The technique of Patent Document 2 did not provide any shaping effect after washing the finished hair. In addition, the texture of damaged hair, such as the ease of running fingers through it, manageability of the ends, and moisturizing feeling, was insufficient.

[0010] The technology of Patent Document 3 provides excellent softness, finger-combability all the way to the ends, and manageability, but does not have the effect of suppressing "curls" and "waves." As described above, in the technical field of hair cosmetics that do not use reducing agents, it has been difficult to maintain the effect of suppressing "curl" and "waviness" even after washing the hair.

[0011] The present invention has been made in view of the above circumstances, and aims to provide a multi-ingredient hair cosmetic that effectively controls the "curl" and "wave" of damaged hair, has a volume-reducing effect, and further, effectively controls the "curl" and "wave" of treated hair even after washing the treated hair, and maintains the volume-reducing effect.

[0012] Another object of the present invention is to provide a multi-component hair cosmetic composition that has a sustained effect of reducing hair volume even in a high-humidity environment, and that provides good texture, such as smoothness through the hair, manageability at the ends, and moisturizing feeling, immediately after treating damaged hair, and that maintains this good texture even after the treated hair is washed. [Means for solving the problem]

[0013] The present inventors have conducted extensive research to solve the above problems, and as a result have found that a multi-component hair cosmetic composition having the following composition can solve the above problems, thereby completing the present invention. The present invention includes, for example, the following [1] to

[17] .

[0014] [1] A multi-component hair cosmetic comprising a first agent and a second agent, wherein the first agent contains, in 100% by mass of the first agent, 0.5 to 8% by mass of an amino-modified silicone (A) and 0.1 to 1.2% by mass of a cationic acrylic polymer compound (B); the second agent contains, in 100% by mass of the second agent, 0.01 to 3% by mass of an anionic polymer (C) and 0.01 to 2% by mass of a nonionic polymer (D); the amino group content in the amino-modified silicone (A) is 0.05 to 0.3% by mass; and the viscosity of the amino-modified silicone (A), measured at 25°C in accordance with the Standards for Quasi-drug Ingredients 2021, General Test Method, Viscosity Measurement Method, Method 2, Rotational Viscosity Method, is 5000 to 100,000 mm 2 / s is a multi-ingredient hair cosmetic.

[0015] [2] The multi-component hair cosmetic composition according to [1], wherein the second component (100% by mass) contains 0.3 to 10% by mass of a sugar alcohol (E).

[0016] [3] The multi-component hair cosmetic composition according to [1] or [2], wherein the second agent contains 0.05 to 1.0% by mass of polysaccharide (F) in 100% by mass.

[0017] [4] The multi-component hair cosmetic composition according to any one of [1] to [3], wherein the second component contains 0.3 to 5% by mass of a highly polymerized silicone (G) in 100% by mass.

[0018] [5] The multi-component hair cosmetic composition according to any one of [1] to [4], wherein either or both of the first and second components contain glycerin (H).

[0019] [6] A multi-component hair cosmetic composition according to any one of [1] to [5], wherein the pH of the first agent is 5.5 to 8.0, the pH of the second agent is 3.0 to 7.0, and the pH of the first agent is higher than the pH of the second agent.

[0020] [7] The multi-component hair cosmetic composition according to any one of [1] to [6], further comprising a third agent, the third agent containing at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

[0021] [8] The multi-component hair cosmetic composition according to any one of [1] to [7], wherein either or both of the second and third components contain at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

[0022] [9] The multi-component hair cosmetic composition according to [7] or [8], wherein the pH of the third component is 3.0 to 7.0.

[0023]

[10] A method for applying a first agent to hair (I), and a method for applying a second agent to hair after the step (I) have been performed, wherein the first agent contains, in 100% by mass of the first agent, 0.5 to 8% by mass of an amino-modified silicone (A) and 0.1 to 1.2% by mass of a cationic acrylic polymer compound (B), and the second agent contains, in 100% by mass of the second agent, 0.01 to 3% by mass of an anionic polymer (C) and 0.01 to 2% by mass of a nonionic polymer (D), wherein the amino group content in the amino-modified silicone (A) is 0.05 to 0.3% by mass, and the viscosity of the amino-modified silicone (A), measured under conditions of 25 ° C. in accordance with the Standards for Quasi-drug Ingredients 2021, General Test Method, Viscosity Measurement Method, Method 2, Rotational Viscosity Meter Method, is 5000 to 100,000 mm 2 A hair treatment method comprising:

[0024]

[11] The hair treatment method according to

[10] , wherein the second agent contains 0.3 to 10% by mass of a sugar alcohol (E) in 100% by mass.

[0025]

[12] The hair treatment method according to

[10] or

[11] , wherein the second agent contains 0.05 to 1.0 mass% of polysaccharide (F) in 100 mass% of the second agent.

[0026]

[13] The hair treatment method according to any one of

[10] to

[12] , wherein the second agent contains 0.3 to 5 mass % of a highly polymerized silicone (G) in 100 mass % of the second agent.

[0027]

[14] A hair treatment method according to any one of

[10] to

[13] , wherein the pH of the first agent is 5.5 to 8.0, the pH of the second agent is 3.0 to 7.0, and the pH of the first agent is higher than the pH of the second agent.

[0028]

[15] The hair treatment method according to any one of

[10] to

[14] , further comprising step (II) of applying the second agent to the hair after step (I) without rinsing the hair.

[0029]

[16] A hair treatment method according to any one of

[10] to

[15] , further comprising a step (III) of applying a third agent to the hair that has been subjected to the step (II) of applying the second agent, wherein the third agent contains at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

[0030]

[17] The hair treatment method according to

[16] , which includes a step of rinsing the hair between the step (II) and the step (III). [Effects of the Invention]

[0031] The present invention can provide a multi-component hair cosmetic that effectively controls the "curl" and "wave" of damaged hair, has a volume-reducing effect, and further effectively controls the "curl" and "wave" of treated hair even after washing, and maintains the volume-reducing effect.

[0032] Furthermore, the present invention can provide a multi-component hair cosmetic composition that has a sustained effect of reducing hair volume even in a high-humidity environment, and that provides a good texture, such as smoothness through the hair, manageability at the ends, and moisturizing feeling, immediately after treating damaged hair, and that maintains this good texture even after the treated hair is washed. [Brief explanation of the drawings]

[0033] [Figure 1] Figure 1 shows the evaluation criteria for the evaluation item (3) "curl" and "wave" control in the examples. From the left, the hair bundles used as the evaluation criteria are control, ×, △, ○, ◎, and ◎◎. DETAILED DESCRIPTION OF THE INVENTION

[0034] Next, the multi-component hair cosmetic composition and hair treatment method of the present invention will be described in detail. <Multi-ingredient hair cosmetic> The multi-component hair cosmetic composition of the present invention is a multi-component hair cosmetic composition comprising a first component and a second component, wherein the first component contains, based on 100 mass% of the first component, 0.5 to 8 mass% of an amino-modified silicone (A) and 0.1 to 1.2 mass% of a cationic acrylic polymer compound (B); the second component contains, based on 100 mass% of the second component, 0.01 to 3 mass% of an anionic polymer (C) and 0.01 to 2 mass% of a nonionic polymer (D); the amino-modified silicone (A) has an amino group content of 0.05 to 0.3 mass%, and the amino-modified silicone (A) has a viscosity of 5,000 to 100,000 mm, as measured at 25°C in accordance with the Standards for Quasi-drug Ingredients 2021, General Test Method, Viscosity Measurement Method, Method 2, Rotational Viscosity Measurement, 2 / s.

[0035] The multi-component hair cosmetic composition of the present invention preferably further comprises a third component, and the third component preferably contains at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G). The multi-component hair cosmetic composition of the present invention preferably contains glycerin (H) in either or both of the first and second components.

[0036] In the present invention, "good control of curls and waves" refers to the state in which the curls and waves are nearly straight. Specifically, the fourth to sixth hair bundles from the left in Fig. 1 (i.e., the hair bundles used as the basis for the evaluation of ○, ◎, and ◎◎) are in a state in which the curls and waves are well controlled.

[0037] <Amino-modified silicone (A)> In the multi-component hair cosmetic composition of the present invention, the first component contains 0.5 to 8 mass %, preferably 1 to 5 mass %, more preferably 2 to 4 mass % of the amino-modified silicone (A) relative to 100 mass % of the first component.

[0038] If the amount of amino-modified silicone (A) is less than the lower limit, the ends of the hair tend to become difficult to manage, and the volume-reducing effect tends to be weaker.If the amount is more than the upper limit, the hair tends to become sticky after drying, and to be difficult to run your fingers through.

[0039] The amino group content in the amino-modified silicone (A) is 0.05 to 0.3 mass %, and preferably 0.08 to 0.3 mass %. If the amino group content in the amino-modified silicone (A) is less than the lower limit, the manageability of hair ends and the volume-reducing effect after drying and its durability tend to be poor, while if it is more than the upper limit, the taming of "curls" and "waves" tends to be poor.

[0040] The viscosity of amino-modified silicone (A) measured at 25°C in accordance with the 2021 Standard for Quasi-drug Ingredients, General Test Method, Viscosity Measurement Method, Method 2, Rotational Viscosity Meter Method, is 5,000 to 100,000 mm 2 / s, preferably 10,000 to 90,000 mm 2 / s, more preferably 30,000 to 80,000 mm 2 / s.

[0041] If the viscosity of the amino-modified silicone (A), measured in accordance with the above-mentioned measurement method, is lower than the lower limit, the "curls" and "waves" tend to be poorly controlled, and if it is higher than the upper limit, the "curls" and "waves" tend to be poorly controlled and the ends of the hair tend to be difficult to manage.

[0042] Examples of the amino-modified silicone (A) include aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer, highly polymerized dimethylsiloxane-methyl(aminopropyl)siloxane copolymer, and bis(hydroxy / methoxy)amodimethicone.

[0043] Among these, it is preferable that the amino-modified silicone (A) is at least one selected from the group consisting of highly polymerized dimethylsiloxane-methyl(aminopropyl)siloxane copolymer and bis(hydroxy / methoxy)amodimethicone, and highly polymerized dimethylsiloxane-methyl(aminopropyl)siloxane copolymer is even more preferable because it is particularly effective in controlling curls and waves. The amino-modified silicone (A) may be used alone or in combination of two or more.

[0044] The reason why the multi-component hair cosmetic composition of the present invention effectively controls curls and waves and has a volume-reducing effect, and furthermore, effectively controls curls and waves even after the treated hair is washed, is unknown, but the inventors speculate that the amino-modified silicone (A) contained in the first component has a specific amino group content and specific viscosity, and is appropriately adsorbed to the entire surface of the hair, thereby maintaining a good effect of controlling curls and waves even after washing.

[0045] <Cationic acrylic polymer compound (B)> In the present invention, the cationic acrylic polymer compound (B) may also be simply referred to as component (B).

[0046] In the multi-component hair cosmetic composition of the present invention, the first component contains, based on 100% by mass of the first component, 0.1 to 1.2% by mass, preferably 0.2 to 1% by mass, and more preferably 0.3 to 0.7% by mass of the cationic acrylic polymer compound (B).

[0047] If the amount of component (B) is less than the lower limit, the "curl" and "wave" tend to be difficult to control and the hair tends to be difficult to run your fingers through. If the amount is more than the upper limit, the "curl" and "wave" tend to be difficult to control and the hair tends to become voluminous.

[0048] In the present invention, the cationic acrylic polymer compound refers to a cationic polymer compound having structural units derived from acrylic acid, methacrylic acid, and derivatives thereof. The cationic acrylic polymer compound (B) preferably has a structural unit represented by the following formula (1), and more preferably has 30 to 100 mass% of the structural unit represented by the following formula (1) in 100 mass% of the compound.

[0049] [ka]

[0050] In formula (1), R 1 is a hydrogen atom or a methyl group, X is -O-, -NR 3 - or -O ‐ and X is -O- or -NR 3 -If R 2 represents an organic group having 1 to 10 carbon atoms which may have at least one functional group selected from polar groups and salts thereof, or a hydrogen atom, X is -O ‐ If R 2 is a monovalent cation, R 3 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. R 1 is preferably a hydrogen atom. R 2 In the formula (I), polar groups include, for example, -OH and -SO3H. Salts thereof include, for example, -O ‐ Na + , -SO3 ‐ Na +, and -SO3 ‐ NH4 + Examples of monovalent cations include Na + , and NH4 + Examples include: R 2 R is preferably an organic group having 1 to 5 carbon atoms which may have at least one functional group selected from polar groups and salts thereof. 2 is more preferably an alkyl group having 1 to 5 carbon atoms substituted with at least one functional group selected from polar groups and salts thereof.

[0051] Examples of the cationic acrylic polymer compound (B) include vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, dimethyldiallylammonium chloride-acrylic acid copolymer, acrylic acid-methyl acrylate-methacrylamidopropyltrimethylammonium chloride copolymer, and acrylic acid-acrylamide-methacrylamidopropyltrimethylammonium chloride copolymer.

[0052] Among these, it is preferable that component (B) be at least one selected from the group consisting of vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, dimethyldiallylammonium chloride-acrylic acid copolymer, acrylic acid-methyl acrylate-methacrylamidopropyltrimethylammonium chloride copolymer, and acrylic acid-acrylamide-methacrylamidopropyltrimethylammonium chloride copolymer, and it is even more preferable that component (B) be vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, from the viewpoints of good control of curls and waves and excellent smoothness after drying. The cationic acrylic polymer compound (B) may be used singly or in combination of two or more kinds.

[0053] <Anionic polymer (C)> In the present invention, the anionic polymer (C) is also simply referred to as component (C). In the multi-component hair cosmetic composition of the present invention, the second component contains, based on 100% by mass of the second component, 0.01 to 3% by mass, preferably 0.45 to 2.5% by mass, and more preferably 0.6 to 2% by mass of the anionic polymer (C).

[0054] If the amount of the anionic polymer (C) is less than the lower limit, the hair tends to be difficult to run your fingers through, whereas if the amount is more than the upper limit, the hair tends to become voluminous and the "curls" and "waves" are not easily controlled.

[0055] Examples of the anionic polymer (C) include anionic acrylic polymers, xanthan gum, sodium polyacrylate, and carboxyalkyl cellulose. In the present invention, the anionic acrylic polymer refers to an anionic polymer compound having structural units derived from acrylic acid, methacrylic acid, and derivatives thereof.

[0056] Among these, it is preferable that component (C) is at least one selected from the group consisting of anionic acrylic polymers and xanthan gum, and anionic acrylic polymers are more preferable from the viewpoint of providing good finger-combability and excellent manageability of hair ends after drying. The anionic polymer (C) may be used singly or in combination of two or more kinds.

[0057] <Nonionic polymer (D)> In the present invention, the nonionic polymer (D) may also be simply referred to as component (D). In the multi-component hair cosmetic composition of the present invention, the second component contains, based on 100% by mass of the second component, 0.01 to 2% by mass, preferably 0.05 to 1.6% by mass, more preferably 0.1 to 1.2% by mass of the nonionic polymer (D).

[0058] If the amount of the nonionic polymer (D) is less than the lower limit, the hair tends to be difficult to run your fingers through and difficult to manage at the ends after drying, whereas if the amount is more than the upper limit, the hair tends to be sticky after drying.

[0059] Examples of the nonionic polymer (D) include water-soluble cellulose and highly polymerized polyethylene glycol, and among these, water-soluble cellulose is preferred. Examples of water-soluble cellulose include hydroxyalkyl cellulose and hydroxyalkyl alkyl cellulose, and among these, hydroxyalkyl cellulose is preferred.

[0060] Specific examples of hydroxyalkyl cellulose include hydroxyethyl cellulose and hydroxypropyl cellulose, and among these, hydroxyethyl cellulose is preferred.

[0061] Specific examples of the hydroxyalkyl alkyl cellulose include hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and hydroxyethyl ethyl cellulose.

[0062] From the viewpoint of excellent volume-reducing effect after drying, component (D) is preferably at least one selected from the group consisting of hydroxyethyl cellulose and hydroxypropyl cellulose, and from the viewpoint of finger-combing after drying and volume-reducing effect, hydroxyethyl cellulose is more preferred. The nonionic polymer (D) may be used singly or in combination of two or more kinds.

[0063] <Sugar alcohol (E)> In the present invention, the sugar alcohol (E) is also simply referred to as component (E). In the multi-component hair cosmetic composition of the present invention, the sugar alcohol (E) is preferably contained in an amount of 0.3 to 10 mass %, more preferably 2 to 9 mass %, and even more preferably 2 to 7 mass %, based on 100 mass % of the second component.

[0064] In the multi-component hair cosmetic composition of the present invention, when a third agent is further included, it is preferable that the third agent contains at least one component selected from the group consisting of sugar alcohol (E), polysaccharide (F), and highly polymerized silicone (G), and it is more preferable that the third agent contains sugar alcohol (E), polysaccharide (F), and highly polymerized silicone (G) from the viewpoint of particularly excellent durability of the volume-reducing effect.

[0065] When the third agent contains sugar alcohol (E), the third agent preferably contains 0.3 to 10 mass %, more preferably 2 to 9 mass %, and even more preferably 2 to 7 mass % of component (E) in 100 mass % of the third agent.

[0066] In the second or third agent, if the component (E) is within the above range, it is preferable because it provides an excellent moisturizing feeling and an excellent volume-reducing effect. When both the second and third agents contain sugar alcohol (E), the sugar alcohol (E) is preferably contained in an amount of 0.3 to 10 mass%, more preferably 2 to 9 mass%, and even more preferably 2 to 7 mass%, based on a total of 100 mass% of the second and third agents.

[0067] Examples of the sugar alcohol (E) include monosaccharide sugar alcohols, disaccharide sugar alcohols, etc. Specific examples of the monosaccharide sugar alcohols include sorbitol, xylitol, erythritol, and mannitol, and examples of the disaccharide sugar alcohols include maltitol.

[0068] Among these, the sugar alcohol (E) is preferably at least one selected from the group consisting of maltitol and sorbitol, and sorbitol is more preferred from the viewpoint of excellent moisturizing feeling. The sugar alcohol (E) may be used alone or in combination of two or more.

[0069] <Polysaccharide (F)> In the present invention, the polysaccharide (F) is also simply referred to as component (F). In the multi-component hair cosmetic composition of the present invention, the second part (100% by mass) preferably contains 0.05 to 1.0% by mass of polysaccharide (F), more preferably 0.15 to 0.9% by mass, and even more preferably 0.15 to 0.6% by mass.

[0070] When the multi-component hair cosmetic composition of the present invention further comprises a third agent, it is more preferable that the third agent contains polysaccharide (F). When the third agent contains polysaccharide (F), the third agent preferably contains component (F) in an amount of 0.05 to 1.0 mass%, more preferably 0.15 to 0.9 mass%, and even more preferably 0.15 to 0.6 mass%, based on 100 mass% of the third agent.

[0071] In the second or third agent, if the polysaccharide (F) is within the above range, it is preferable because the ends of the hair after drying are well-mannered and "curls" and "waves" are well-controlled. It is more preferable for the multi-component hair cosmetic composition of the present invention to contain polysaccharide (F) in the third agent rather than the second agent, as this provides better manageability of hair ends after drying, better control of curls and waves, and longer-lasting effects of controlling curls and waves.

[0072] When the polysaccharide (F) is contained in both the second and third agents, the polysaccharide (F) is preferably contained in an amount of 0.05 to 1.0 mass%, more preferably 0.15 to 0.9 mass%, and even more preferably 0.15 to 0.6 mass%, based on a total of 100 mass% of the second and third agents.

[0073] When the polysaccharide (F) is contained in both the second and third agents, it is more preferable that the amount of polysaccharide (F) is greater in the third agent than in the second agent. Examples of the polysaccharides (F) include tamarind seed gum, xanthan gum, starch, guar gum, and locust bean gum.

[0074] Among these, the polysaccharide (F) is preferably at least one selected from the group consisting of tamarind seed gum, xanthan gum, guar gum and locust bean gum, and tamarind seed gum is more preferred because it provides good relief from "curl" and "waves." The polysaccharides (F) may be used singly or in combination of two or more kinds.

[0075] <Highly Polymerized Silicone (G)> In the present invention, the highly polymerized silicone (G) is also referred to simply as component (G). In the present invention, the term "highly polymerized silicone" refers to a silicone having a viscosity of 60,000 mm2 or less, measured at 25°C in accordance with the 2nd method of the viscosity measurement method of the rotational viscometer in the 2021 General Test Method for Quasi-drug Ingredients. 2 This refers to silicone with a content of 1 / s or more.

[0076] In the multi-component hair cosmetic composition of the present invention, the second part (100% by mass) preferably contains 0.3 to 5% by mass, more preferably 1 to 4.5% by mass, and even more preferably 1 to 3.5% by mass of the highly polymerized silicone (G).

[0077] When the multi-component hair cosmetic composition of the present invention further comprises a third agent, it is more preferable that the third agent contains a highly polymerized silicone (G). When the third part contains a highly polymerized silicone (G), the third part preferably contains 0.3 to 5 mass %, more preferably 1 to 4.5 mass %, and even more preferably 1 to 3.5 mass % of component (G) in 100 mass % of the third part.

[0078] In the second or third agent, if the component (G) is within the above range, the volume-reducing effect tends to be excellent in durability, which is preferable. When component (G) is contained in both the second and third parts, the content of the highly polymerized silicone (G) is preferably 0.3 to 5 mass%, more preferably 1 to 4.5 mass%, and even more preferably 1 to 3.5 mass%, based on a total of 100 mass% of the second and third parts.

[0079] When both the second and third agents contain the highly polymerized silicone (G), it is more preferable to contain a larger amount of component (G) in the third agent than in the second agent, as this tends to result in a more durable volume-reducing effect.

[0080] The high polymerized silicone (G) preferably has a viscosity of 60,000 to 25,000,000 measured at 25°C in accordance with the rotational viscometer method, Viscosity Measurement Method No. 2, General Test Method, Standard for Quasi-drug Ingredients 2021. 2 / s.

[0081] It is preferable that the viscosity of the highly polymerized silicone (G) is within the above range, since this tends to improve control of "curls" and "waves" and improve manageability of hair ends after drying. Examples of the highly polymerized silicone (G) include highly polymerized methylpolysiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, dimethiconol, dimethicone copolyol, and alkyldimethicone.

[0082] Among these, the highly polymerized silicone (G) is preferably at least one selected from the group consisting of highly polymerized methylpolysiloxane, methylphenylpolysiloxane, and alkyldimethicone, and highly polymerized methylpolysiloxane is more preferred from the viewpoint of excellent finger smoothness after drying. The highly polymerized silicone (G) may be used alone or in combination of two or more.

[0083] <Glycerin (H)> In the present invention, glycerin (H) may also be simply referred to as component (H). The multi-component hair cosmetic composition of the present invention preferably contains glycerin (H) in either or both of the first and second components.

[0084] When glycerin (H) is contained in either the first or second agent, the component (H) is preferably contained in an amount of 2 to 12 mass%, more preferably 4 to 8 mass%, per 100 mass% of the first agent or 100 mass% of the second agent.

[0085] When glycerin (H) is contained in both the first and second agents, the glycerin (H) is preferably contained in an amount of 2 to 12 mass%, more preferably 4 to 8 mass%, based on a total of 100 mass% of the first and second agents. In the first or second agent, if the glycerin (H) is within the above range, the texture tends to have excellent washability, which is preferable.

[0086] Other ingredients The multi-component hair cosmetic composition of the present invention typically contains water in the first, second, and optional third components. The amount of water is not particularly limited and can be adjusted appropriately depending on the intended use. Specific examples of water include tap water, ion-exchanged water, distilled water, purified water, and natural water, with sterilized water being preferred.

[0087] The first agent preferably contains 50 to 99.4% by mass, more preferably 60 to 95% by mass, and even more preferably 65 to 90% by mass of water relative to 100% by mass of the first agent. The second agent preferably contains 50 to 99.8% by mass, more preferably 60 to 95% by mass, and even more preferably 65 to 90% by mass of water relative to 100% by mass of the second agent. The third agent preferably contains 50 to 99.4 mass %, more preferably 60 to 95 mass %, and even more preferably 65 to 90 mass % of water relative to 100 mass % of the third agent.

[0088] The multi-component hair cosmetic composition of the present invention may contain optional ingredients other than the above-mentioned ingredients in the first, second, and optional third components, as long as the effects of the present invention are not impaired. Optional components of the first, second, and third agents include, for example, moisturizers, herbal medicines, chelating agents, preservatives, antioxidants, cooling agents, antistatic agents, vitamins, proteins, fragrances, antibacterial agents, thickeners, emulsifiers, emulsion stabilizers, surfactants, viscosity adjusters, higher alcohols, silicones (excluding amino-modified silicone (A)), oils, solvents, and pigments.

[0089] Optional components of the first agent preferably include, specifically, stearyltrimethylammonium chloride as an emulsifier; cetanol as a viscosity adjuster; phenoxyethanol as a preservative; and lactic acid and triethanolamine as pH adjusters.

[0090] As optional components of the second agent, specifically, it is preferable to use phenoxyethanol as a preservative, and lactic acid and sodium lactate as pH adjusters.

[0091] Specific optional components of the third agent preferably include stearyltrimethylammonium chloride as an emulsifier; cetanol as a viscosity adjuster; phenoxyethanol as a preservative; and lactic acid and sodium lactate as pH adjusters.

[0092] 《Manufacturing method, etc.》 The multi-component hair cosmetic composition of the present invention can be produced by, for example, stirring, mixing, heating, dissolving, dispersing, or the like by a known method, except that the above-mentioned components are used in the above-mentioned amounts, and the production method is not particularly limited. The production method may be carried out under heated conditions to uniformly mix the components. When produced under heated conditions, the temperature can be, for example, 75 to 85°C.

[0093] In the multi-component hair cosmetic composition of the present invention, the pH of the first agent is preferably 5.5 to 8.0, more preferably 6.5 to 7.5, and the pH of the second agent is preferably 3.0 to 7.0, more preferably 3.0 to 5.5. In the multi-component hair cosmetic composition of the present invention, the pH of the first agent is preferably higher than the pH of the second agent.

[0094] A pH of the first agent of 5.5 to 8.0 is preferred because it is non-sticky and has excellent effects of keeping hair ends manageable and reducing volume after drying, while a pH of 6.5 to 7.5 is even more preferred because it provides smoothness during rinsing, non-stickiness, excellent effects of reducing volume after drying, and excellent effects of keeping hair ends manageable after drying.

[0095] It is preferable that the pH of the second agent is 3.0 to 7.0, as this provides good control of curls and waves, and it is even more preferable that the pH of the second agent is 3.0 to 5.5, as this provides particularly good control of curls and waves.

[0096] Furthermore, if the pH of the first agent is higher than the pH of the second agent, the adsorption of the amino-modified silicone (A) to the hair is enhanced, and the volume-reducing effect is sustained, the effect of taming "curls" and "waves" after washing is sustained, and the hair tends to be easy to run your fingers through after drying, which is preferable.

[0097] When the multi-component hair cosmetic composition of the present invention comprises a third component, the pH of the third component is preferably 3.0 to 7.0, more preferably 3.0 to 5.5. It is preferable for the pH of the third agent to be 3.0 to 7.0, as this tends to provide excellent finger smoothness after drying, and it is even more preferable for the pH of the third agent to be 3.0 to 5.5, as this tends to provide particularly excellent finger smoothness after drying. The pH values ​​of the first, second and third agents can be measured at 25°C using a pH meter.

[0098] Dosage form The formulation of the multi-component hair cosmetic composition of the present invention is not particularly limited, and examples include cream, emulsion, liquid, milk, spray, foam, gel, etc. The first component is preferably a cream, emulsion, or gel from the viewpoint of facilitating fixation of the component to the hair, the second component is preferably a liquid, gel, cream, or milk from the viewpoint of enabling the component applied with the first component to be evenly spread on the hair, and the third component is preferably a cream from the viewpoint of facilitating even coverage of the hair surface.

[0099] The multi-component hair cosmetic composition of the present invention may have a transparent or opaque appearance, for example. Preferably, both the first and third components are in an emulsified state, and the oily components are emulsified to give the composition an opaque appearance.

[0100] 《How to use》 The multi-component hair cosmetic composition of the present invention can be used by applying it to hair. The multi-component hair cosmetic composition of the present invention is preferably used by applying it to hair after washing the hair with a hair cleanser such as shampoo.

[0101] The multi-component hair cosmetic composition of the present invention can be applied to either dry or wet hair, but from the viewpoint of enhancing the penetration effect into the hair, it is preferable to apply the multi-component hair cosmetic composition of the present invention to wet hair.

[0102] The multi-component hair cosmetic composition of the present invention is not particularly limited in its application, and can be used as a system treatment, hair treatment, hair conditioner, and treatment agent. System treatment refers to a treatment that improves the condition of hair by applying a treatment in multiple steps in a salon or the like according to the level of hair damage.

[0103] The multi-component hair cosmetic composition of the present invention is preferably used for system treatment. The multi-component hair cosmetic composition of the present invention may be incorporated into a hair coloring agent or a perm agent, as long as the effects of the present invention are not impaired.

[0104] <Hair treatment method> When hair treatment is carried out using the multi-component hair cosmetic composition of the present invention, it can be carried out, for example, by the following method.

[0105] The hair treatment method of the present invention comprises a step (I) of applying a first agent to hair, and a step (II) of applying a second agent to the hair that has been subjected to step (I), wherein the first agent contains, based on 100 mass% of the first agent, 0.5 to 8 mass% of an amino-modified silicone (A) and 0.1 to 1.2 mass% of a cationic acrylic polymer compound (B); the second agent contains, based on 100 mass% of the second agent, 0.01 to 3 mass% of an anionic polymer (C) and 0.01 to 2 mass% of a nonionic polymer (D); the amino-modified silicone (A) has an amino group content of 0.05 to 0.3 mass%, and the amino-modified silicone (A) has a viscosity of 5,000 to 100,000 mm, as measured at 25°C in accordance with Method 2 of the Viscosity Measurement Method in the General Test Methods of the Standards for Quasi-drug Ingredients of 2021, Rotational Viscosity Measuring Method. 2 / s.

[0106] The hair treatment method of the present invention preferably includes step (II) of applying the second agent to the hair treated in step (I) without rinsing it. This is because a complex is likely to form on the hair between the cationic and anionic substances contained in the first and second agents. Formation of a complex on the hair is preferred because it makes the hair smoother after rinsing, improves control of curls and waves, and tends to have a longer-lasting effect.

[0107] The hair treatment method of the present invention preferably further comprises a step (III) of applying a third agent to the hair that has been subjected to the step (II) of applying the second agent.

[0108] When the hair treatment method of the present invention includes step (III) of applying a third agent, it is preferable that the third agent contains at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G). When the hair treatment method of the present invention includes step (III) of applying a third agent, it is preferable to include a step of rinsing the hair between steps (II) and (III) from the viewpoint of reducing stickiness.

[0109] In the hair treatment method of the present invention, the second agent preferably contains 0.3 to 10% by mass of sugar alcohol (E) in 100% by mass. In the hair treatment method of the present invention, the second agent preferably contains 0.05 to 1.0% by mass of polysaccharide (F) relative to 100% by mass. In the hair treatment method of the present invention, the second agent preferably contains 0.3 to 5% by mass of highly polymerized silicone (G) in 100% by mass.

[0110] When the hair treatment method of the present invention further includes the step (III) of applying a third agent, it is more preferable that the third agent contains a sugar alcohol (E), a polysaccharide (F), and a highly polymerized silicone (G).

[0111] In the hair treatment method of the present invention, the pH of the first agent is preferably 5.5 to 8.0, and the pH of the second agent is preferably 3.0 to 7.0, and it is more preferable that the pH of the first agent is higher than the pH of the second agent.

[0112] When treating hair with the multi-component hair cosmetic composition of the present invention, other treatment agents may be used before the step of applying the first agent, depending on, for example, hair damage and customer needs. Specific examples of other treatment agents include treatment agents with hair repair effects, coloring agents, and perm agents.

[0113] The multi-component hair cosmetic composition of the present invention comprises a first agent and a second agent, and the mass ratio of the first agent to the second agent in the multi-component hair cosmetic composition of the present invention is usually 1:0.5 to 1:2, preferably 1:0.8 to 1:1.2. Furthermore, when the multi-component hair cosmetic composition of the present invention comprises a third agent, the mass ratio of the first agent to the third agent is usually 1:0.5 to 1:2, preferably 1:0.8 to 1:1.2.

[0114] The multi-component hair cosmetic composition of the present invention is not particularly limited in the amounts of the first, second, and third agents applied to the hair and can be adjusted appropriately depending on the degree of hair damage, but the mass ratio of the first to second agents is usually 1:0.5 to 1:2, preferably 1:0.8 to 1:1.2. Furthermore, when the multi-component hair cosmetic composition of the present invention comprises a third agent, the mass ratio of the first to third agents is usually 1:0.5 to 1:2, preferably 1:0.8 to 1:1.2. When applying the multi-component hair cosmetic composition of the present invention to hair, it is preferable to apply, for example, 0.8 to 1.5 g each of the first, second, and third components to a 10 g hair bundle. [Example]

[0115] The present invention will now be described in more detail with reference to examples, but the present invention is not limited to these examples. In the examples and comparative examples, commercially available products listed in Table 1 were used.

[0116] In the table, the numerical values ​​of the formulations of Examples 1 to 85 and Comparative Examples 1 to 15 represent the mass % of each component when the first, second, or third agent of the multi-component hair cosmetic composition is taken as 100 mass %, and are expressed as values ​​converted into pure contents.

[0117] In the "Second Agent Application Method" column in the table, if "overlay" is listed, it means that the second agent was applied without rinsing the hair to which the first agent had been applied. If "after rinsing with water" is listed, it means that the second agent was applied after rinsing the hair to which the first agent had been applied.

[0118] In the "Third Agent Application Method" column in the table, if it says "overlay," it means that the third agent was applied without rinsing the hair to which the second agent had been applied. If it says "after rinsing with water," it means that the hair to which the second agent had been applied was rinsed before the third agent was applied.

[0119] [Table 1]

[0120] <Evaluation method> Ten expert panelists (hairdressers) each conducted a sensory evaluation according to the evaluation criteria described below. For each evaluation item, the average score of the sensory evaluation by 10 panelists was calculated and evaluated as follows: ◎◎: The average rating of 10 expert panelists (hairdressers) is 4 points or higher. ◎: The average rating of 10 professional panelists (hairdressers) is 3 or more but less than 4 points. ○: The average evaluation score of 10 professional panelists (hairdressers) is 2 points or more but less than 3 points. △: The average evaluation score of 10 professional panelists (hairdressers) is 1 point or more but less than 2 points. ×: The average evaluation score of 10 professional panelists (hairdressers) is less than 1 point.

[0121] Damage Resolution The hair bundles used in the examples and comparative examples were previously subjected to a damage treatment using the following method in order to reproduce the damage and frizziness experienced by an average person's hair. A 30cm long bundle of black human hair (BS-B3-A, Beaulux: approximately 10g) was divided into 4.2-4.8g pieces, and the sections approximately 1cm from the roots were tied together with elastic bands. The entire bundle was immersed in 50g of liquid bleach at 50°C and left at room temperature of 25°C for 20 minutes. It was then rinsed with running water at approximately 40°C, washed with 1g of Sherpa Design Supplement Shampoo D-2 (Arimino Co., Ltd.), and rinsed with running water to create a damaged hair bundle.

[0122] The liquid bleach was prepared by mixing 7.5 g of 35% hydrogen peroxide (manufactured by ADEKA Corporation), 2.5 g of 28% ammonia water (manufactured by Taisei Kako Co., Ltd.), 1 g of special-grade ammonium peroxodisulfate (manufactured by Kanto Chemical Co., Ltd.), and 39 g of 50°C ion-exchanged water per strand of hair tied with an elastic band.

[0123] Wavy hair strands The damaged hair bundle was wrapped around a 25 mm diameter rod while wet, and 3 g of Cosmecurl H (Arimino Co., Ltd.), a first agent of permanent wave agent, was applied and left at 25°C for 18 minutes. It was then rinsed with water, and 3 g of Cosmecurl After Lotion (Arimino Co., Ltd.), a second agent of permanent wave agent, was applied, and left at 25°C for 15 minutes. It was then rinsed with water again and then removed from the rod. This damaged wavy hair bundle was used for evaluation.

[0124] Evaluation Procedure A: Layering of the second agent (Examples 1 to 32, 34 to 53, Comparative Examples 1 to 15) After wetting the damaged wavy hair bundle with hot water at about 40°C, 1 g of the first agent prepared according to each formulation described in the Examples and Comparative Examples was applied and worked into the entire hair bundle with the hands. To the hair bundle to which the first agent had been applied, 1 g of the second agent prepared according to each formulation described in the Examples and Comparative Examples was applied and blended into the entire hair bundle. The hair bundle was then rinsed with hot water, towel-dried, and then dried with a hair dryer. The hair bundle that had been dried with the hair dryer was subjected to a sensory evaluation according to the evaluation items (1) to (5) and (7). Then, a sensory evaluation was performed according to the evaluation items (6) and (8) to (10).

[0125] Evaluation Procedure B: Second agent after rinsing with water (Example 33) After wetting the damaged wavy hair bundle with hot water at approximately 40°C, 1 g of the first agent prepared according to the formulation described in the Examples was applied, worked into the entire hair bundle with the hands, and rinsed with hot water at approximately 40°C. After rinsing, the hair bundle was lightly drained, and 1 g of the second agent prepared according to the formulation of the Examples was applied to the hair bundle and worked into the entire hair bundle. The hair bundle was then rinsed with hot water, towel-dried, and dried with a hair dryer. The hair bundle that had been dried with a hair dryer was subjected to a sensory evaluation according to evaluation items (1) to (5) and (7). Then, a sensory evaluation was performed according to evaluation items (6) and (8) to (10).

[0126] Evaluation Procedure C: Apply the second agent over the other agent, rinse with water, then apply the third agent (Examples 54 to 69, 72 to 85) After wetting the damaged wavy hair bundle with hot water at about 40°C, 1 g of the first agent prepared according to each formulation described in the Examples was applied and worked into the entire hair bundle with the hands. To the hair bundle to which the first agent had been applied, 1 g of the second agent prepared according to each formulation described in the Examples was applied again, blended into the entire hair bundle, and rinsed with hot water at approximately 40°C. After rinsing, the hair bundle was lightly drained, and 1 g of the third agent prepared according to each formulation of the Examples was applied to the hair bundle and blended into the entire hair bundle. The hair bundle was then rinsed with hot water, towel-dried, and dried with a hair dryer. The hair bundle that had been dried with a hair dryer was subjected to a sensory evaluation according to evaluation items (1) to (5) and (7). Then, a sensory evaluation was performed according to evaluation items (6) and (8) to (10).

[0127] Evaluation Procedure D: Second formulation after rinsing with water, third formulation after rinsing with water (Example 70) After wetting the damaged wavy hair strands with hot water at about 40°C, 1g of the first agent prepared according to the formula described in the examples was applied, and the hair strands were massaged in with the hands, and then rinsed with hot water at about 40°C. After rinsing, 1 g of the second agent prepared according to the formula described in the Examples was applied to the lightly dried hair strands, and the hair strands were then massaged in and rinsed with warm water at approximately 40°C. After rinsing, 1 g of the third agent prepared according to the formula described in the Examples was applied to the lightly drained hair bundle and then massaged into the entire hair bundle. The hair bundle was then rinsed with hot water, towel-dried, and then dried with a hair dryer. The hair bundle that had been dried with the hair dryer was subjected to a sensory evaluation according to the evaluation items (1) to (5) and (7). Then, a sensory evaluation was performed according to the evaluation items (6) and (8) to (10).

[0128] Evaluation Procedure E: Layering of the second and third agents (Example 71) After wetting the damaged wavy hair bundle with hot water at about 40°C, 1 g of the first agent prepared according to each formulation described in Example 71 was applied and worked into the entire hair bundle with the hands. To the hair bundle to which the first agent had been applied, 1 g of the second agent prepared according to the formulation described in Example 71 was applied over it and blended into the entire hair bundle. To the hair bundle to which the second agent had been applied, 1 g of the third agent prepared according to the formulation described in Example 71 was applied over it and blended into the entire hair bundle. The hair bundles were then rinsed with hot water, towel-dried, and then dried with a hair dryer. The hair bundles that had been dried with the hair dryer were subjected to a sensory evaluation according to the evaluation items (1) to (5) and (7). Then, a sensory evaluation was performed according to the evaluation items (6) and (8) to (10).

[0129] <Evaluation items> (1) Smoothness when rinsing After application of the second or third agent, the hair bundle was rinsed with running water and the smoothness was evaluated by touch. 5 points: Very smooth 4 points: Smooth 3 points: Smooth, but slightly squeaky 2 points: Creaky and not very smooth 1: Very squeaky and not smooth at all

[0130] (2) Reduces volume after drying The damaged wavy hair bundle was dried with a hair dryer and combed, and then the width of the part 25 cm below the root of the hair bundle was measured (control). After combing the hair bundle treated according to the above-mentioned evaluation procedure, the width of the hair bundle was measured at a point 25 cm below the root of the hair bundle, as in the case of the control. The percentage of the width of the control that corresponds to the width of the hair bundle after treatment was calculated. The calculated values ​​were evaluated according to the following criteria. ◎◎: Less than 50% ◎: 50% or more but less than 60% ○: 60% or more but less than 70% △: 70% or more but less than 90% ×: 90% or more When drying the damaged wavy hair strands with a hair dryer, combing was not performed, and the hot air from the hair dryer was applied evenly to the entire strand from a point 30 cm away from the strand.

[0131] (3) Reducing curls and waves The hair bundle treated according to the above-mentioned evaluation procedure was combed, and then visually compared with the hair bundle in the photograph of Figure 1 for evaluation. The photograph of the hair bundle in Figure 1 shows, from the left, the hair bundles that are the basis for evaluation: control, ×, △, ○, ◎, and ◎◎. When drying the hair bundle with a hair dryer, no combing was performed, and the hot air from the hair dryer was applied evenly to the entire hair bundle from a point 30 cm away.

[0132] (4) Stickiness The hair bundles treated according to the above-mentioned evaluation procedure were evaluated for stickiness by touch by running fingers through them or squeezing them. 5 points: No stickiness at all 4 points: No stickiness 3 points: Slightly sticky, but not noticeable 2 points: Slightly sticky, and hair tends to clump when you run your fingers through it 1 point: Very sticky, clumps clearly form when you run your fingers through the hair

[0133] (5) Run your fingers through it after it dries The hair bundles treated according to the above-mentioned evaluation procedure were run through with fingers and evaluated for ease of running fingers through them by touch. 5 points: No snags at all, very smooth to the touch 4 points: No snags, smooth to the touch 3 points: It is a little difficult to run your fingers through, but you can run your fingers through the ends without any problems. 2 points: It is difficult to run your fingers through, and you feel the hair get caught once or twice while running your fingers through the ends. 1 point: The hair is very hard to run your fingers through, making it difficult to get your fingers through to the ends

[0134] (6) Smoothness of hair ends after drying The hair bundles treated according to the above-mentioned evaluation procedure were combed, and then the ends of the hair were lightly smoothed with the hands, and the degree of smoothness of the ends was visually evaluated. 5 points: Hair is very neat all the way to the ends 4 points: Relatively neat to the ends 3 points: The ends of the hair are slightly frizzy, but by combing them with your hands, they become manageable all the way to the ends. 2 points: The ends of the hair are frizzy and difficult to style with a finger comb. 1 point: Spreading is seen from the roots and spreads significantly to the ends

[0135] (7) Durability of volume reduction effect The hair bundle treated according to the above-mentioned evaluation procedure was dried with a hair dryer while being combed to straighten out the waves, and the width of the part 25 cm below the root of the hair bundle was measured. The hair bundle was then hung in a high humidity environment of 80-90%, and after 1 hour, the width of the part 25 cm below the base of the hair bundle was measured in the same manner. If the width of the hair bundle measured before hanging it in a high humidity environment is taken as 100%, the percentage of the width of the hair bundle after hanging it in a high humidity environment was calculated. The calculated values ​​were evaluated according to the following criteria. ◎◎: Less than 120% ◎: 120% or more but less than 130% ○: 130% or more and less than 140% △: 140% or more but less than 160% ×: 160% or more

[0136] (8) Moisturizing The hair tresses treated according to evaluation procedure A, B, C, or D were evaluated for moisturizing feel by touch by running fingers through them or squeezing them. 5 points: Very moisturizing, hair strands feel cool to the touch 4 points: Moisturizing, hair feels slightly cool to the touch 3 points: Slightly lacking in moisturizing effect, hair strands feel slightly cool to the touch but do not feel dry 2 points: The moisturizing effect is weak and the hair feels dry when touched 1 point: Very weak moisturizing effect, hair strands feel very dry when touched

[0137] (9) Washability of texture A hair tress was prepared (control) that was treated according to the evaluation procedure described above. Another hair bundle treated in the same manner as the control was wetted with running water at about 40°C, washed with 1 g of Sherpa Design Supplement Shampoo D-2 (Arimino Co., Ltd.), and dried with a hair dryer. The texture of the washed and dried hair bundle was compared with that of the control hair bundle. The number of times the wash and dry process was repeated until the texture of the hair bundle became equivalent to that of the control hair bundle was recorded, and the results were evaluated according to the following criteria. 5 points: 6 or more times 4 points: 5 times 3 points: 4 times 2 points: 3 times 1 point: 2 times or less The number of treatments was determined to be one when a series of "washing and drying" treatments were performed.

[0138] (10) Washability that effectively controls curls and waves The hair bundle treated according to the above evaluation procedure was dried with a hair dryer while combing to straighten the waves, and the width of the part 25 cm below the root of the hair bundle was measured (control). The hair bundle was then washed with 1 g of Sherpa Design Supplement Shampoo D-2 (Arimino Co., Ltd.) and dried with a hair dryer while combing to straighten the waves as described above. The dried hair bundle was hung in an environment with 60% humidity, and after 24 hours, the width of the part 25 cm below the base of the hair bundle was measured in the same manner as for the control. The width of the control hair bundle was taken as 100%, and the number of treatments at which the width of the hair bundle after repeated washing, drying, and hanging under high humidity exceeded 175% was recorded, and the hair bundle was evaluated according to the following criteria. ◎◎: 5 times or more ◎: 4 times ○: 3 times △: 2 times ×: 1 time The number of times was counted as one time when the entire series of processes, "washing the hair bundle, drying it, hanging it in an environment with 60% humidity, and measuring the width of the hair bundle after 24 hours," was performed.

[0139] [Table 2]

[0140] [Table 3]

[0141] [Table 4]

[0142] [Table 5]

[0143] [Table 6]

[0144] [Table 7]

[0145] [Table 8]

[0146] [Table 9]

[0147] [Table 10]

[0148] [Table 11]

[0149] The multi-component hair cosmetics produced in Examples 1 to 85 achieved good results in all evaluation items. It can be seen that the multi-component hair cosmetic composition of the present invention effectively controls the curl and wave of damaged hair and has a volume-reducing effect, and furthermore, it effectively controls the curl and wave of treated hair even after washing, and the volume-reducing effect lasts.

[0150] Furthermore, the multi-component hair cosmetic composition of the present invention maintains its hair volume-reducing effect even in a high-humidity environment, and provides good texture, such as smoothness through the fingers, manageability of the ends, and moisturizing feeling, immediately after treatment on damaged hair, and it has been found that this good texture continues even after the treated hair is washed.

[0151] The multi-component hair cosmetic prepared in Comparative Example 1 contained all of the essential ingredients of the present invention in the first component, and was not separated into a first component and a second component, so particles formed in the components and the product was not in a state suitable for application to hair as a hair cosmetic. The reason for the particles forming was thought to be the formation of a complex between the amino-modified silicone (A), the cationic acrylic polymer compound (B), and the anionic polymer (C).

[0152] The multi-component hair cosmetic produced in Comparative Example 2 contained all of the essential ingredients of the present invention in the first agent, and was not divided into a first and second agent. Therefore, the volume reduction effect after drying, the control of curls and waves, and the manageability of hair ends after drying were poor, and the volume reduction effect and the control of curls and waves were not sustained well.

[0153] The multi-component hair cosmetics produced in Comparative Examples 3 and 4 used an amino-modified silicone other than the amino-modified silicone (A) specified in the present invention, and therefore had poor volume-reducing effect after drying, poor control of curls and waves, and poor manageability of hair ends after drying, and the volume-reducing effect and texture were also poorly sustained.

[0154] The multi-component hair cosmetic produced in Comparative Example 5 used a polymer compound that did not have structural units derived from acrylic acid, methacrylic acid, or their derivatives, rather than the cationic acrylic polymer compound (B) specified in the present invention. Therefore, the smoothness during rinsing, the volume-reducing effect after drying, and the ability to reduce curls and waves were poor, and the volume-reducing effect was also poorly sustained.

[0155] The multi-component hair cosmetic composition produced in Comparative Example 6 did not contain the anionic polymer (C), and therefore was very difficult to run one's fingers through after drying. In addition, the smoothness during rinsing, the volume-reducing effect after drying, and the manageability of hair ends after drying were poor, and the volume-reducing effect did not last long.

[0156] The multi-component hair cosmetic composition produced in Comparative Example 7 did not contain the nonionic polymer (D), and therefore the combability and manageability of the ends of the hair after drying were very poor. In addition, the smoothness during rinsing, the volume-reducing effect after drying, and the ability to control "curls" and "waves" were poor, and the volume-reducing effect did not last long.

[0157] The multi-component hair cosmetics produced in Comparative Examples 8 and 9 did not have satisfactory quality because they did not contain the amino-modified silicone (A) in the amount specified in the present invention. The multi-component hair cosmetics produced in Comparative Examples 10 and 11 did not have satisfactory quality because they did not contain the cationic acrylic polymer compound (B) in the amount specified in the present invention.

[0158] The multi-component hair cosmetics produced in Comparative Examples 12 and 13 were not of satisfactory quality because they did not contain the anionic polymer (C) in the amount specified in the present invention. The multi-component hair cosmetics produced in Comparative Examples 14 and 15 were not of satisfactory quality because they did not contain the nonionic polymer (D) in the amount specified in the present invention.

Claims

1. A multi-component hair cosmetic composition comprising a first agent and a second agent, the first agent contains, based on 100% by mass of the first agent, 0.5 to 8% by mass of an amino-modified silicone (A) and 0.1 to 1.2% by mass of a cationic acrylic polymer compound (B); the second agent contains, based on 100% by mass of the second agent, 0.01 to 3% by mass of an anionic polymer (C) and 0.01 to 2% by mass of a nonionic polymer (D); the amino group content in the amino-modified silicone (A) is 0.05 to 0.3 mass %, The viscosity of the amino-modified silicone (A), measured at 25°C in accordance with the Quasi-drug Ingredients Standard 2021 General Test Method Viscosity Measurement Method, Method 2 Rotational Viscosity Meter Method, is 5,000 to 100,000 mm 2 A multi-ingredient hair cosmetic composition comprising:

2. 2. The multi-component hair cosmetic composition according to claim 1, wherein the second agent contains 0.3 to 10% by mass of a sugar alcohol (E) relative to 100% by mass of the second agent.

3. 2. The multi-component hair cosmetic composition according to claim 1, wherein the second agent contains 0.05 to 1.0% by mass of polysaccharide (F) relative to 100% by mass of the second agent.

4. 2. The multi-component hair cosmetic composition according to claim 1, wherein the second agent contains 0.3 to 5% by mass of the highly polymerized silicone (G) relative to 100% by mass of the second agent.

5. The multi-component hair cosmetic composition according to claim 1 , wherein either or both of the first and second agents contain glycerin (H).

6. The first agent has a pH of 5.5 to 8.0, and the second agent has a pH of 3.0 to 7.0, The multi-component hair cosmetic composition according to any one of claims 1 to 5, wherein the pH of the first agent is higher than the pH of the second agent.

7. Further, a third agent is provided, 2. The multi-component hair cosmetic composition according to claim 1, wherein the third agent comprises at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

8. 8. The multi-component hair cosmetic composition according to claim 7, wherein either or both of the second and third agents contain at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

9. 8. The multi-component hair cosmetic composition according to claim 7, wherein the pH of the third component is 3.0 to 7.

0.

10. Step (I) of applying a first agent to the hair; and A step (II) of applying a second agent to the hair that has been treated in the step (I), the first agent contains, based on 100% by mass of the first agent, 0.5 to 8% by mass of an amino-modified silicone (A) and 0.1 to 1.2% by mass of a cationic acrylic polymer compound (B); the second agent contains, based on 100% by mass of the second agent, 0.01 to 3% by mass of an anionic polymer (C) and 0.01 to 2% by mass of a nonionic polymer (D); the amino group content in the amino-modified silicone (A) is 0.05 to 0.3 mass %, The viscosity of the amino-modified silicone (A), measured at 25°C in accordance with the Quasi-drug Ingredients Standard 2021 General Test Method Viscosity Measurement Method, Method 2 Rotational Viscosity Meter Method, is 5,000 to 100,000 mm 2 A hair treatment method comprising the steps of:

11. The hair treatment method according to claim 10, wherein the second agent contains 0.3 to 10% by mass of a sugar alcohol (E) in 100% by mass.

12. The hair treatment method according to claim 10, wherein the second agent contains 0.05 to 1.0% by mass of polysaccharide (F) relative to 100% by mass of the second agent.

13. The hair treatment method according to claim 10, wherein the second agent contains 0.3 to 5% by mass of a highly polymerized silicone (G) relative to 100% by mass of the second agent.

14. The hair treatment method according to claim 10, wherein the pH of the first agent is 5.5 to 8.0, the pH of the second agent is 3.0 to 7.0, and the pH of the first agent is higher than the pH of the second agent.

15. The hair treatment method according to claim 10, further comprising a step (II) of applying the second agent to the hair treated in the step (I) without rinsing the hair.

16. The method further comprises a step (III) of applying a third agent to the hair after the step (II) of applying the second agent, The hair treatment method according to any one of claims 10 to 15, wherein the third agent contains at least one component selected from the group consisting of sugar alcohols (E), polysaccharides (F), and highly polymerized silicones (G).

17. The hair treatment method according to claim 16, further comprising a step of rinsing the hair between the step (II) and the step (III).

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