JP2025005198A - Hair cleansing composition - Google Patents

Abstract

To provide a hair cleansing agent composition with superior performance in delivering a perception of hair softness during washing.SOLUTION: A hair cleansing agent composition according to the present invention contains levulinic acid (component A), an N-acylamino acid-based surfactant (component B), an amphoteric surfactant (component C), a cationized polymer (component D), and water (component D), with the content of the component A being 0.05 mass% or more and 10.0 mass% or less, the content of the component B being 0.3 mass% or more and 15.0 mass% or less, the content of the component C being 0.3 mass% or more and 15.0 mass% or less, and the content of the component D being 0.1 mass% or more and 5.0 mass% or less.SELECTED DRAWING: None

Description

The present invention relates to a hair cleansing composition.

Hair cleansing compositions used to cleanse hair usually contain an anionic surfactant as a cleansing component. For example, the following Patent Document 1 discloses a hair cleansing composition containing laureth sulfate, which is an anionic surfactant. Also, the following Patent Document 2 discloses a hair cleansing composition containing an acylamino acid surfactant, which is an anionic surfactant.

JP 2016-193852 A JP 2019-172576 A

A hair cleansing composition may be required to have a property that makes hair feel soft when washed (mainly when rinsing) (a property that makes hair feel softer when washed).

However, when a conventional hair cleansing composition containing laureth sulfate is used, the hair squeaks strongly during washing and does not feel soft. On the other hand, when a conventional hair cleansing composition containing an acyl amino acid surfactant is used, the hair feels soft to some extent during washing, but the effect is not sufficient.

The object of the present invention is to provide a hair cleansing composition that has excellent properties that make hair feel soft when washed.

The present invention provides a hair cleansing composition comprising the following components (A), (B), (C), (D), and (E), in which the content of component (A) is 0.05% by mass or more and 10.0% by mass or less, the content of component (B) is 0.3% by mass or more and 15.0% by mass or less, the content of component (C) is 0.3% by mass or more and 15.0% by mass or less, and the content of component (D) is 0.1% by mass or more and 5.0% by mass or less.

Component (A): Levulinic acid Component (B): N-acyl amino acid surfactant Component (C): Amphoteric surfactant Component (D): Cationic polymer Component (E): Water

In the hair cleansing composition of the present invention, it is preferable that the component (B) contains the following component (B1).

Component (B1): N-acylaspartate

The hair cleansing composition of the present invention preferably contains the following component (F).

Component (F): Ether carboxylic acid surfactant

The hair cleansing composition of the present invention preferably does not contain laureth sulfate or contains it at 0.1% by mass or less.

The hair cleansing composition of the present invention contains specific component (A), specific component (B), specific component (C), specific component (D), and specific component (E). In the hair cleansing composition of the present invention, the content of component (A) is 0.05% by mass or more and 10.0% by mass or less, the content of component (B) is 0.3% by mass or more and 15.0% by mass or less, the content of component (C) is 0.3% by mass or more and 15.0% by mass or less, and the content of component (D) is 0.1% by mass or more and 5.0% by mass or less. Since the hair cleansing composition of the present invention has the above-mentioned configuration, it has an excellent property of making hair feel soft when washed.

The present invention is described in detail below.

The hair cleansing composition of the present invention contains levulinic acid, an N-acylamino acid surfactant, an amphoteric surfactant, a cationic polymer, and water.

In this specification, the above "levulinic acid" may be referred to as "component (A)."

In this specification, the above-mentioned "N-acyl amino acid surfactant" may be referred to as "component (B)."

In this specification, the above-mentioned "amphoteric surfactant" may be referred to as "component (C)."

In this specification, the above-mentioned "cationized polymer" may be referred to as "component (D)."

In this specification, the above "water" may be referred to as "component (E)."

The hair cleansing composition of the present invention therefore contains component (A), component (B), component (C), component (D), and component (E).

In the hair cleansing composition of the present invention, the content of component (A) is 0.05% by mass or more and 10.0% by mass or less, the content of component (B) is 0.3% by mass or more and 15.0% by mass or less, the content of component (C) is 0.3% by mass or more and 15.0% by mass or less, and the content of component (D) is 0.1% by mass or more and 5.0% by mass or less.

The hair cleansing composition of the present invention has the above-mentioned configuration, and therefore has an excellent property of making hair feel soft when washed. The hair cleansing composition of the present invention is particularly excellent in making wet hair feel softer when the hair cleansing composition is rinsed off.

The hair cleansing composition of the present invention can also provide good foaming properties and foam elasticity. This allows the hair cleansing composition to be foamed well. Furthermore, the foam formed has a resilient foam quality, which further improves the feel when washing hair.

Furthermore, the hair cleansing composition of the present invention can reduce the squeaking of hair when rinsing with water and improve foam removal.

Therefore, the hair cleansing composition of the present invention can improve the feeling of use from the time of lathering to the time of rinsing with water.

The hair cleansing composition of the present invention may contain an ether carboxylic acid surfactant.

In this specification, the above-mentioned "ether carboxylic acid surfactant" may be referred to as "component (F)."

The hair cleansing composition of the present invention may contain a nonionic surfactant that is liquid at 25°C and is selected from the group consisting of fatty acid monoethanolamides, oxyalkylene fatty acid monoethanolamides, polyoxyalkylene fatty acid monoethanolamides, oxyalkylene alkyl ethers, polyoxyalkylene alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, alkylene glycol fatty acid esters, and polyalkylene glycol fatty acid esters.

In this specification, the above "nonionic surfactant that is liquid at 25°C and is selected from the group consisting of fatty acid monoethanolamides, oxyalkylene fatty acid monoethanolamides, polyoxyalkylene fatty acid monoethanolamides, oxyalkylene alkyl ethers, polyoxyalkylene alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, alkylene glycol fatty acid esters, and polyalkylene glycol fatty acid esters" may be referred to as "component (G)."

The hair cleansing composition of the present invention may contain other components in addition to components (A) to (G).

The above components, for example, component (A), component (B), component (C), component (D), component (F), component (G), and other components, may each be used alone or in combination of two or more.

In this specification, the content of each component means the total content of all the components contained in the hair cleansing composition. For example, the content of component (B) means the total content of all the components (B) in the hair cleansing composition.

In addition, in this specification, the term "liquid at 25°C" means that the material has fluidity at 25°C.

The following describes in detail each of the components used in the hair cleansing composition of the present invention.

(Component (A))
Component (A) is levulinic acid. By using component (A), the property of hair softness felt during washing can be improved. In particular, by using component (A) in combination with component (B), the property of hair softness felt during washing can be further improved.

In order to achieve the effects of the present invention, the content of component (A) is 0.05% by mass or more and 10.0% by mass or less in 100% by mass of the hair cleansing composition.

In 100% by mass of the hair cleansing composition, the content of component (A) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 7.0% by mass or less, more preferably 5.0% by mass or less. When the content of component (A) is equal to or more than the above lower limit and equal to or less than the above upper limit, the effects of the present invention can be more effectively exhibited.

(Component (B))
Component (B) is an N-acylamino acid surfactant. Component (B) is an anionic surfactant. The hair wash composition of the present invention contains, as a main cleansing component, an N-acylamino acid surfactant, which is a surfactant that is less irritating to hair and skin. By using component (B), it is possible to enhance the property of hair feeling soft during washing. In addition, by using component (B), it is possible to suppress creaking of hair during washing with water. Only one type of component (B) may be used, or two or more types may be used in combination.

Component (B) includes N-acylamino acids and their salts, more specifically, N-acylalanine and its salts, N-acylglutamic acid and its salts, N-acylsarcosine and its salts, N-acyltaurine and its salts, N-acylglycine and its salts, N-acylaspartic acid and its salts, N-acylserine and its salts, and N-acylthreonine and its salts.

Examples of salts constituting component (B) include alkali metal salts such as sodium salts and potassium salts; and alkanolamine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts.

From the viewpoint of improving foaming properties and suppressing stickiness of hair when rinsing with water, it is preferable that component (B) contains N-acylaspartate.

In this specification, the above "N-acylaspartate" may be referred to as "ingredient (B1)."

Therefore, component (B) preferably contains component (B1), and more preferably is component (B1).

Examples of component (B1) include potassium coconut aspartate, sodium coconut aspartate, triethanolamine acyl (C12,14) aspartate, sodium acyl (C12,14) aspartate, triethanolamine coconut aspartate, sodium lauroyl aspartate, and triethanolamine lauroyl aspartate.

From the viewpoint of improving foaming properties and further suppressing stickiness of hair during washing with water, component (B1) is preferably an N-acylaspartate having an acyl group with 12 to 14 carbon atoms, more preferably an N-acylaspartate selected from the group consisting of lauroyl aspartate, acyl (C12,14) aspartate, and cocoyl aspartate, and even more preferably lauroyl aspartate. In addition, the salt constituting component (B1) is preferably a sodium salt.

From the viewpoint of exerting the effects of the present invention, improving foaming properties, and suppressing stickiness of hair during washing with water, the content of component (B) is 0.3% by mass or more and 15.0% by mass or less in 100% by mass of the hair cleansing composition.

In 100% by mass of the hair cleansing composition, the content of component (B) is preferably 0.5% by mass or more, more preferably 0.7% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less. When the content of component (B) is equal to or more than the above lower limit and equal to or less than the above upper limit, the foaming properties can be further improved, and the stickiness of hair during washing with water can be further suppressed.

In 100% by mass of the hair cleansing composition, the content of component (B1) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, and preferably 15.0% by mass or less, more preferably 10.0% by mass or less, and even more preferably 7.0% by mass or less. When the content of component (B1) is equal to or more than the above lower limit and equal to or less than the above upper limit, the foaming properties can be further improved, and the stickiness of hair during washing with water can be further suppressed.

(Component (C))
Component (C) is an amphoteric surfactant. By using component (C), it is possible to further improve foaming properties and compatibility. In addition, by using component (C), it is possible to enhance the hair cleansing power. Furthermore, by using component (C), it is possible to appropriately thicken the hair wash composition. Only one type of component (C) may be used, or two or more types may be used in combination.

Component (C) includes alkylamidobetaine-type amphoteric surfactants such as lauric acid amidopropyl betaine and coconut oil fatty acid amidopropyl betaine; glycine-type amphoteric surfactants such as alkylglycine salts, carboxymethylglycine salts, and N-acylaminoethyl-N-2-hydroxyethylglycine salts; aminopropionic acid-type amphoteric surfactants such as alkylaminopropionates and alkyliminodipropionates; alkyldimethylaminoacetic acid betaines, alkylamidopropyldimethylaminoacetic acid betaines, and alkyldihydroxyethyl a Examples of such surfactants include aminoacetic acid betaine type amphoteric surfactants such as aminoacetic acid betaine; sulfobetaine type amphoteric surfactants such as alkylhydroxysulfobetaine; imidazolinium type amphoteric surfactants such as alkylcarboxymethylhydroxyethylimidazolinium betaine; N-alkyl-N,N-dimethylammonium-N-propyl sulfonate; N-alkyl-N,N-dimethylammonium-N-(2-hydroxypropyl) sulfonate; and N-fatty acid amidopropyl-N,N-dimethylammonium-N-(2-hydroxypropyl) sulfonate.

From the viewpoint of improving foaming properties and compatibility, and from the viewpoint of suppressing stickiness of hair during washing with water, the content of component (C) is 0.3% by mass or more and 15.0% by mass or less in 100% by mass of the hair cleansing composition.

In 100% by mass of the hair cleansing composition, the content of component (C) is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and preferably 10.0% by mass or less. When the content of component (C) is equal to or more than the above lower limit, the foaming property and compatibility can be further improved. When the content of component (C) is equal to or less than the above upper limit, the squeak of hair during washing with water can be further suppressed. When the content of component (C) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened.

(Component (D))
Component (D) is a cationic polymer. By using component (D), it is possible to improve foaming properties and foam elasticity, and to suppress squeak of hair during washing with water. Furthermore, it is possible to appropriately thicken the hair cleansing composition. Only one type of component (D) may be used, or two or more types may be used in combination.

Component (D) includes cationic cellulose; dimethyldiallylammonium chloride-acrylamide copolymer; cationic guar gum such as O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride; cationic starch; diallyl quaternary ammonium salt polymer; diallyl quaternary ammonium salt/acrylamide copolymer; quaternized polyvinylpyrrolidone derivative; polyglycol polyamine condensate; adipic acid-dimethylaminohydroxypropylethylenetriamine copolymer; and cationic dextran.

Component (D) preferably contains cationic cellulose and/or dimethyldiallylammonium chloride-acrylamide copolymer, and more preferably contains cationic cellulose and dimethyldiallylammonium chloride-acrylamide copolymer. When component (D) contains cationic cellulose, it is possible to particularly suppress the creaking of hair during washing with water, and to particularly improve the elasticity of the foam. When component (D) contains dimethyldiallylammonium chloride-acrylamide copolymer, it is possible to particularly improve the foaming properties.

In this specification, the above "cationized cellulose" may be referred to as "component (D1)," and the above "dimethyldiallylammonium chloride-acrylamide copolymer" may be referred to as "component (D2)."

Therefore, it is preferable that component (D) contains component (D1) and/or component (D2), and it is more preferable that component (D1) and component (D2) are contained.

Examples of component (D1) include polyquaternium-10 and polyquaternium-67. The above polyquaternium-10 is a compound designated by the INCI name "POLYQUATERNIUM-10" and is O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride. The above polyquaternium-67 is a compound designated by the INCI name "POLYQUATERNIUM-67" and is a polymer of a quaternary ammonium salt obtained by subjecting hydroxyethylcellulose to an addition reaction with a trimethylammonium-substituted epoxide and a lauryldimethylammonium-substituted epoxide, and is a cationized hydroxyethylcellulose derivative.

From the viewpoint of further improving the foaming properties and foam elasticity, and further reducing the creaking of hair when rinsing with water, component (D1) preferably contains polyquaternium-10, and more preferably contains polyquaternium-10 and polyquaternium-67.

Examples of component (D2) include polyquaternium-7, polyquaternium-22, and polyquaternium-39. The above-mentioned polyquaternium-7 is a compound whose INCI name is "POLYQUATERNIUM-7." The above-mentioned polyquaternium-39 is a compound whose INCI name is "POLYQUATERNIUM-39."

From the viewpoint of further improving the foaming properties and foam elasticity, and further reducing the creaking of hair when rinsing with water, it is preferable that component (D2) contains polyquaternium-7.

From the viewpoint of improving foaming properties and foam elasticity, and from the viewpoint of suppressing squeakiness of hair during washing with water, the content of component (D) is 0.1% by mass or more and 5.0% by mass or less in 100% by mass of the hair cleansing composition.

In 100% by mass of the hair cleansing composition, the content of component (D) is preferably 0.2% by mass or more, more preferably 0.3% by mass or more, preferably 3.0% by mass or less, more preferably 2.0% by mass or less. When the content of component (D) is equal to or more than the above lower limit and equal to or less than the above upper limit, the foaming property and foam elasticity can be further improved, and the squeak of hair during washing with water can be further suppressed.

In 100% by mass of the hair cleansing composition, the content of component (D1) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.3% by mass or more, and preferably 3.0% by mass or less, more preferably 2.0% by mass or less, and even more preferably 1.5% by mass or less. When the content of component (D1) is equal to or more than the above lower limit, the foaming properties and foam elasticity can be further improved. When the content of component (D1) is equal to or less than the above upper limit, the stickiness of hair during washing with water can be further suppressed, and the stability of the properties of the hair cleansing composition can be further improved.

In 100% by mass of the hair wash composition, the content of component (D2) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.07% by mass or more, and preferably 2.0% by mass or less, more preferably 1.0% by mass or less, and even more preferably 0.7% by mass or less. When the content of component (D2) is equal to or more than the above lower limit and equal to or less than the above upper limit, the foaming properties can be further improved.

(Component (E))
Component (E) is water. Component (E) serves as a base. Component (E) is preferably purified water.

In 100% by mass of the above hair cleansing composition, the content of component (E) is preferably 40.0% by mass or more, more preferably 50.0% by mass or more, preferably 90.0% by mass or less, more preferably 85.0% by mass or less.

(Component (F))
Component (F) is an ether carboxylic acid surfactant. Component (F) is an anionic surfactant. Component (F) is a carboxylic acid or a salt thereof having an ether bond in the molecule, and is a surfactant containing a structure having an ether bond between a hydrocarbon chain and a carboxylic acid (or a carboxylate). The hydrocarbon chain may have a functional group such as a hydroxyl group. The ether bond may be an ether bond of a polyethylene glycol chain or an ether bond of a polyglycerin chain. The hydrocarbon chain is bonded to, for example, an alkyl group portion of the carboxylic acid (or a carboxylate) via an ether bond. By using component (F), the foaming property can be further improved. In addition, by using component (F), the hair cleaning power can be increased. Furthermore, by using component (F), the hair wash composition can be appropriately thickened. Only one type of component (F) may be used, or two or more types may be used in combination.

Component (F) includes alkyl glycol carboxylic acids and their salts, and polyoxyethylene alkyl ether carboxylic acids and their salts.

Examples of salts constituting component (F) include alkali metal salts such as sodium salts and potassium salts; and alkanolamine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts.

Examples of the alkyl glycol carboxylic acid and its salt include alkyl glycol carboxylic acid and its salt having an alkyl group with 12 to 14 carbon atoms.

Examples of the polyoxyethylene alkyl ether carboxylic acids and their salts include sodium laureth-11 carboxylate and sodium laureth-4 carboxylate.

From the viewpoint of further suppressing the squeaking of hair during washing with water and from the viewpoint of further improving foaming properties, it is preferable that component (F) contains an alkyl glycol carboxylic acid and/or a salt thereof, and it is more preferable that it is an alkyl glycol carboxylic acid and/or a salt thereof.

In this specification, the above-mentioned "alkyl glycol carboxylic acid and/or salt thereof" may be referred to as "component (F1)."

Therefore, component (F) preferably contains component (F1), and more preferably is component (F1).

Specific examples of component (F1) include lauryl glycol carboxylic acid and its salts.

From the viewpoint of further suppressing creaking of hair during washing with water and further improving foaming properties, component (F1) preferably contains lauryl glycol carboxylate, and more preferably is lauryl glycol carboxylate.

In this specification, the above "lauryl glycol carboxylate" may be referred to as "component (F11)."

Therefore, component (F1) preferably contains component (F11), and is more preferably component (F11). Component (F) preferably contains component (F11), and is more preferably component (F11).

From the viewpoint of further suppressing creaking of hair during washing with water and from the viewpoint of further improving foaming properties, it is preferable that component (F11) is sodium lauryl glycol carboxylate.

In 100% by mass of the hair cleansing composition, the content of component (F1) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 20.0% by mass or less, more preferably 15.0% by mass or less, and even more preferably 10.0% by mass or less. When the content of component (F1) is equal to or more than the above lower limit, the foaming property and compatibility can be further improved. When the content of component (F1) is equal to or less than the above upper limit, the squeak of hair during washing with water can be further suppressed. When the content of component (F1) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened.

In 100% by mass of the hair cleansing composition, the content of component (F) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, and preferably 20.0% by mass or less, more preferably 15.0% by mass or less, and even more preferably 10.0% by mass or less. When the content of component (F) is equal to or more than the above lower limit, the foaming property and compatibility can be further improved. When the content of component (F) is equal to or less than the above upper limit, the squeak of hair during washing with water can be further suppressed. When the content of component (F) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened.

(Component (G))
Component (G) is a nonionic surfactant (at least one nonionic surfactant) that is liquid at 25° C. and is selected from the group consisting of fatty acid monoethanolamides, oxyalkylene fatty acid monoethanolamides, polyoxyalkylene fatty acid monoethanolamides, oxyalkylene alkyl ethers, polyoxyalkylene alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, alkylene glycol fatty acid esters, and polyalkylene glycol fatty acid esters. By using component (G), the hair wash composition can be appropriately thickened. Only one type of component (G) may be used, or two or more types may be used in combination.

In this specification, among the components (G), the above-mentioned "fatty acid monoethanolamide" may be referred to as "component (G1)", the above-mentioned "oxyalkylene fatty acid monoethanolamide and/or polyoxyalkylene fatty acid monoethanolamide" may be referred to as "component (G2)", the above-mentioned "oxyalkylene alkyl ether and/or polyoxyalkylene alkyl ether" may be referred to as "component (G3)", the above-mentioned "glycerin fatty acid ester and/or polyglycerin fatty acid ester" may be referred to as "component (G4)", and the above-mentioned "alkylene glycol fatty acid ester and/or polyalkylene glycol fatty acid ester" may be referred to as "component (G5)". Thus, component (G) is a nonionic surfactant that is liquid at 25°C and is selected from the group consisting of components (G1), (G2), (G3), (G4), and (G5).

Component (G1) is a fatty acid monoethanolamide. Component (G1) is a nonionic surfactant that is liquid at 25°C. Component (G) preferably contains component (G1). By using component (G1), in addition to the thickening effect, foamability can be further improved. Only one type of component (G1) may be used, or two or more types may be used in combination.

Examples of component (G1) include coconut oil fatty acid N-methyl monoethanolamide (cocamide methyl MEA).

Component (G1) is derived from a fatty acid and has an alkyl group. Component (G1) preferably has an alkyl group having 8 to 18 carbon atoms. In this case, the thickening effect and formulation stability can be further improved.

Component (G2) is an oxyalkylene fatty acid monoethanolamide and/or a polyoxyalkylene fatty acid monoethanolamide. Component (G2) is a nonionic surfactant that is liquid at 25°C. Component (G2) may be an oxyalkylene fatty acid monoethanolamide, a polyoxyalkylene fatty acid monoethanolamide, or both an oxyalkylene fatty acid monoethanolamide and a polyoxyalkylene fatty acid monoethanolamide. In the oxyalkylene fatty acid monoethanolamide, the average number of moles of oxyalkylene groups added is 1. In the polyoxyalkylene fatty acid monoethanolamide, the average number of moles of oxyalkylene groups added is 2 or more. Component (G) preferably contains component (G2). Only one type of component (G2) may be used, or two or more types may be used in combination.

Examples of component (G2) include PEG-3 cocamide, PEG-6 cocamide, PEG-11 cocamide, PEG-3 lauramide, and PPG-2 cocamide.

In component (G2), the average number of moles of oxyalkylene groups added is preferably 1 or more and 20 or less, and more preferably 2 or more and 12 or less.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G2) is an oxyethylene fatty acid monoethanolamide and/or a polyoxyethylene fatty acid monoethanolamide. In the above polyoxyethylene fatty acid monoethanolamide, the average number of moles of oxyethylene groups added is preferably 2 or more and 20 or less, and more preferably 2 or more and 12 or less.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G2) is a component (at least one component) selected from the group consisting of PEG-3 cocamide, PEG-3 lauramide, and PEG-6 cocamide.

Component (G3) is an oxyalkylene alkyl ether and/or a polyoxyalkylene alkyl ether. Component (G3) is a nonionic surfactant that is liquid at 25°C. Component (G3) may be an oxyalkylene alkyl ether, a polyoxyalkylene alkyl ether, or both an oxyalkylene alkyl ether and a polyoxyalkylene alkyl ether. In the oxyalkylene alkyl ether, the average number of moles of oxyalkylene groups added is 1. In the polyoxyalkylene alkyl ether, the average number of moles of oxyalkylene groups added is 2 or more. Component (G) preferably contains component (G3). Only one type of component (G3) may be used, or two or more types may be used in combination.

Examples of component (G3) include polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene alkyl (12-14) ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene cetyl ether, polyoxypropylene cetyl ether, polyoxypropylene isocetyl ether, and polyoxypropylene oleyl ether.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G3) is an oxyethylene alkyl ether and/or a polyoxyethylene alkyl ether. In the above polyoxyethylene alkyl ether, the average number of moles of oxyethylene groups added is preferably 2 or more and 15 or less, and more preferably 2 or more and 10 or less.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G3) is a component (at least one component) selected from the group consisting of (C12-14) pareth-3, laureth-2, laureth-3, laureth-4, oleth-2, and PPG-4 ceteth-1.

Component (G4) is a glycerin fatty acid ester and/or a polyglycerin fatty acid ester. Component (G4) is a nonionic surfactant that is liquid at 25°C. Component (G4) may be a glycerin fatty acid ester, a polyglycerin fatty acid ester, or both a glycerin fatty acid ester and a polyglycerin fatty acid ester. In the glycerin fatty acid ester, the average number of moles of glycerin groups added is 1. In the polyglycerin fatty acid ester, the average number of moles of glycerin groups added is 2 or more. Component (G) preferably contains component (G4). Only one type of component (G4) may be used, or two or more types may be used in combination.

Examples of component (G4) include diglyceryl monocaprylate, hexaglyceryl monocaprate, pentaglyceryl monocaprate, tetraglyceryl monolaurate, pentaglyceryl monolaurate, hexaglyceryl monolaurate, poly(4-10)glyceryl monolaurate, diglyceryl monooleate, hexaglyceryl monooleate, and diglyceryl sesquioleate.

In component (G4), the average number of moles of glycerin groups added is preferably 1 or more and 7 or less, and more preferably 1 or more and 5 or less.

Component (G5) is an alkylene glycol fatty acid ester (oxyalkylene fatty acid ester) and/or a polyalkylene glycol fatty acid ester (polyoxyalkylene fatty acid ester). Component (G5) is a nonionic surfactant that is liquid at 25°C. Component (G5) may be an alkylene glycol fatty acid ester, a polyalkylene glycol fatty acid ester, or both an alkylene glycol fatty acid ester and a polyalkylene glycol fatty acid ester. In the alkylene glycol fatty acid ester, the average number of moles of alkylene glycol groups (oxyalkylene groups) added is 1. In the polyalkylene glycol fatty acid ester, the average number of moles of alkylene glycol groups (oxyalkylene groups) added is 2 or more. Component (G) preferably contains component (G5). Only one type of component (G5) may be used, or two or more types may be used in combination.

Examples of component (G5) include PEG-2 laurate, PEG-3 laurate, PEG-6 laurate, PEG-10 laurate, PEG-6 oleate, PEG-10 oleate, and PEG-8 diisostearate.

In component (G5), the average number of moles of alkylene glycol groups (oxyalkylene groups) added is preferably 1 or more and 15 or less, more preferably 1 or more and 10 or less.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G5) is polyethylene glycol laurate and/or polyethylene glycol oleate.

From the viewpoint of further enhancing the thickening effect and formulation stability, it is preferable that component (G5) is a component (at least one component) selected from the group consisting of PEG-2 laurate, PEG-3 laurate, and PEG-6 laurate.

From the viewpoint of suppressing a decrease in foamability, it is preferable that component (G) contains component (G1) as an essential component. It is more preferable that component (G) contains component (G1) and at least one component selected from the group consisting of component (G2), component (G3), component (G4) and component (G5).

In 100% by mass of the hair cleansing composition, the content of component (G1) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 15.0% by mass or less, more preferably 12.0% by mass or less, and even more preferably 10.0% by mass or less. When the content of component (G1) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G1) is equal to or less than the above upper limit, the foaming property can be further improved and the occurrence of turbidity in the hair cleansing composition can be suppressed.

In 100% by mass of the above hair cleansing composition, the content of component (G2) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 15.0% by mass or less, more preferably 12.0% by mass or less, and even more preferably 10.0% by mass or less. When the content of component (G2) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G2) is equal to or less than the above upper limit, the foaming property can be further improved and the occurrence of turbidity in the hair cleansing composition can be suppressed.

The content of component (G3) in 100% by mass of the above hair cleansing composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less, and even more preferably 5.0% by mass or less. When the content of component (G3) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G3) is equal to or less than the above upper limit, the foaming property can be further improved and the occurrence of turbidity in the hair cleansing composition can be suppressed.

The content of component (G4) in 100% by mass of the above hair cleansing composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less, and even more preferably 5.0% by mass or less. When the content of component (G4) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G4) is equal to or less than the above upper limit, the foaming property can be further improved and the occurrence of turbidity in the hair cleansing composition can be suppressed.

In 100% by mass of the above hair cleansing composition, the content of component (G5) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less, and even more preferably 5.0% by mass or less. When the content of component (G5) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G5) is equal to or less than the above upper limit, the foaming property can be further improved and the occurrence of turbidity in the hair cleansing composition can be suppressed.

In 100% by mass of the above hair cleansing composition, the content of component (G) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 15.0% by mass or less, more preferably 12.0% by mass or less, and even more preferably 10.0% by mass or less. When the content of component (G) is equal to or more than the above lower limit and equal to or less than the above upper limit, the hair cleansing composition can be appropriately thickened. When the content of component (G) is equal to or less than the above upper limit, the occurrence of turbidity in the hair cleansing composition can be suppressed.

(Other ingredients)
The hair wash composition may contain other components in addition to the above-mentioned components (A) to (G). The other components are not particularly limited, but examples thereof include anionic surfactants other than the three components (B), (F), and laureth sulfate, nonionic surfactants other than component (G), cationic surfactants, dyes, lower alcohols, polyhydric alcohols, cooling agents, pH adjusters, preservatives, antioxidants, sequestering agents (EDTA, etc.), vitamins, animal and plant extracts, pearlizing agents, colorants, and fragrances. Only one type of each of the other components may be used, or two or more types may be used in combination.

<Anionic surfactant different from the three types of component (B), component (F), and laureth sulfate>
The hair wash composition may contain an anionic surfactant (hereinafter, sometimes referred to as an anionic surfactant (X)) different from the three kinds of components, namely, component (B), component (F) and laureth sulfate. The anionic surfactant (X) is different from an N-acylamino acid surfactant, different from an ether carboxylic acid surfactant and different from a laureth sulfate.

Examples of the anionic surfactant (X) include sulfosuccinates, α-olefin sulfonates, polyoxyethylene alkyl ether phosphates, N-acyltaurates, and fatty acid soaps.

When the hair cleansing composition contains the anionic surfactant (X), the content of the anionic surfactant (X) in 100% by mass of the hair cleansing composition is preferably 0.3% by mass or more, more preferably 1.0% by mass or more, preferably 20.0% by mass or less, more preferably 15.0% by mass or less.

<Lower alcohol>
The lower alcohol (for example, an aliphatic alcohol having 1 to 4 carbon atoms) includes ethanol.

From the viewpoint of making it easier to adjust the viscosity and imparting antiseptic power, the content of the lower alcohol in 100% by mass of the hair cleansing composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less.

<Polyhydric alcohol>
Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, glycerin, concentrated glycerin, diglycerin, triglycerin, glucose, maltose, maltitol, sucrose, mannitol, sorbitol, isopentyl diol, 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-decaneol, and 1,2-octanediol.

From the viewpoint of making it easier to adjust the viscosity and imparting antiseptic power, the content of the polyhydric alcohol in 100% by mass of the hair cleansing composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, preferably 10.0% by mass or less, more preferably 7.0% by mass or less.

<Refreshing Agent>
The cooling agents include 1-menthol, 1,8-cineole, camphor, and the like.

<Preservatives>
Examples of the preservatives include methylparaben, ethylparaben, propylparaben, isopropylparaben, butylparaben, isobutylparaben, benzoic acid, benzoates, chlorphenesin, and phenoxyethanol.

<Laureth Sulfate>
From the viewpoint of further enhancing the property of hair softness felt during hair washing, the hair wash composition preferably does not contain laureth sulfate or contains it at 0.1 mass% or less. When the hair wash composition contains laureth sulfate, the content of the laureth sulfate in 100 mass% of the hair wash composition is preferably 0.1 mass% or less. In this case, the creaking of hair during washing with water can be further suppressed. However, even when the hair wash composition contains more than 0.1 mass% laureth sulfate, the property of hair softness felt during hair washing can be enhanced by increasing the content of component (A).

<Silicone oil>
The hair cleanser composition preferably does not contain silicone oil or contains 1.0 mass% or less of silicone oil. When the hair cleanser composition contains silicone oil, the content of the silicone oil in 100 mass% of the hair cleanser composition is preferably 1.0 mass% or less, more preferably 0.5 mass% or less. In this case, the formulation stability can be further improved. Examples of the silicone oil include methyl polysiloxane, highly polymerized methyl polysiloxane, methyl phenyl polysiloxane, dimethiconol, methyl hydrogen polysiloxane, alcohol-modified silicone, alkyl-modified silicone, and amino-modified silicone.

(Other details of the hair cleansing composition)
The pH of the hair wash composition is preferably 3.0 or more, more preferably 4.0 or more, and preferably 10.0 or less, more preferably 9.0 or less. When the pH is equal to or more than the above lower limit and equal to or less than the above upper limit, irritation to hair and skin can be kept low.

The properties of the hair cleansing composition are not particularly limited, but it is preferable that the composition be liquid at 25°C.

The hair cleansing composition is preferably used for damaged hair (so-called damaged hair). More specifically, the hair cleansing composition is preferably used for hair that has been color-treated, bleached, or permed. Hair that has been color-treated, bleached, or permed has damaged or lost cuticles on the hair surface. Therefore, when washing hair with a conventional hair cleansing composition, the hair is likely to tangle, and as a result, the hair may be further damaged. In contrast, the hair cleansing composition of the present invention has an excellent characteristic that makes the hair feel soft when washed. In addition, since the creaking of the hair during washing with water can be suppressed, the hair is less likely to tangle. Therefore, the hair cleansing composition of the present invention can improve the feeling of use even when used for damaged hair (particularly hair that has been color-treated, bleached, or permed).

The method for producing the hair cleansing composition is not particularly limited, and any known method for producing a hair cleansing composition can be used. Examples of the method for producing the hair cleansing composition include a method of mixing each component. Examples of the method for mixing each component include a method using a stirring device such as a disper mixer or a paddle mixer.

The hair cleansing composition is preferably a shampoo.

The hair cleansing composition can be used, for example, in a form filled in a container. Examples of the container include a dispenser container (pump container) and a hinge container.

The present invention will be specifically described below with reference to examples and comparative examples. The present invention is not limited to the following examples.

The following ingredients were used in the examples and comparative examples.

(Component (A))
Levulinic acid

(Component (B))
Sodium lauroyl aspartate Triethanolamine acyl (C12,14) aspartate Triethanolamine lauroyl glutamate Potassium cocoyl glycine

(Component (C))
Lauryl amidopropyl betaine ("Softazoline LPB-R" manufactured by Kawaken Fine Chemicals Co., Ltd.)
Cocamidopropyl betaine ("Softazoline CPB-R" manufactured by Kawaken Fine Chemicals Co., Ltd.)
Lauryl Hydroxysulfobetaine

(Component (D))
Polyquaternium-67
Polyquaternium-10 (1) ("Catinal HC-100" manufactured by Toho Chemical Industry Co., Ltd., O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride)
Polyquaternium-10 (2) ("Catinal HC-200" manufactured by Toho Chemical Industry Co., Ltd., O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride)
Polyquaternium-7 (LUBRIZOL "Marcoat 550PR")
Polyquaternium-39 (LUBRIZOL "Marcoat 3300")

(Component (F))
Sodium lauryl glycol carboxylate ("Viewlite SHAA" manufactured by Sanyo Chemical Industries, Ltd.)

(Component (G))
Cocamide methyl MEA (Kao Corporation "Aminone C11S")
POE(3) Coconut oil fatty acid monoethanolamide laureth-3
Diethylene glycol laurate ("GENAPOL LP2" manufactured by Clariant Japan)

(Anionic surfactant not corresponding to either component (B) or component (F))
Sodium Laureth Sulfate Sodium Methyl Lauroyl Taurate Disodium Laureth Sulfosuccinate

(Component (E))
Purified water

(others)
Diisostearyl malate Isopentyldiol (polyhydric alcohol)
1,2-Pentylene glycol (polyhydric alcohol)
Glycerin (polyhydric alcohol)
Citric acid Ethanol Sodium benzoate Phenoxyethanol

(Examples 1 to 14 and Comparative Examples 1 and 2)
Hair cleansing compositions were prepared by blending the ingredients (unit: mass%) shown in the following Tables 1 to 3. The blend amounts in the tables (amounts blended relative to 100% by mass of the hair cleansing composition) are shown as pure amounts (unit: mass%).

(evaluation)
The obtained hair cleansing compositions were evaluated as follows. The evaluation of Test Examples 1 to 4 was carried out by a panel of three experts, who discussed and decided the evaluation results.

(Test Example 1: Hair softness during washing)
A wig (long hair, manufactured by Bealux) was bleached using a commercially available bleaching agent. The bleached wig was washed using a shampoo containing cocamidopropyl betaine as a main cleaning component, and then a rinse containing stearyl trimethyl ammonium chloride as a main conditioning component was applied and washed off. The wig was then dried with a hair dryer to prepare an evaluation wig. The evaluation wig thus prepared was wetted with lukewarm water, and 2 g of each of the hair cleansing compositions obtained in the Examples and Comparative Examples was evenly applied to the entire hair of the evaluation wig, and the evaluation wig was rubbed and foamed. The hair cleansing composition was then thoroughly washed off from the evaluation wig using lukewarm water while passing fingers through the evaluation wig. The softness of the hair during washing was evaluated according to the following criteria by comparing the feel of the hair when touched as if gripping it immediately after washing with the feel of the hair before washing. The "feel of hair before washing" refers to the feel of the hair when the prepared evaluation wig was wetted with lukewarm water (before application of the hair cleansing composition) and the hair was touched as if gripping it.

<Evaluation criteria for hair softness after washing>
○ (Excellent): The hair immediately after rinsing feels noticeably softer than the hair before washing.
× (inferior): The hair immediately after rinsing does not feel any improvement in softness compared to the hair before washing.

The hair cleansing compositions obtained in the examples were also evaluated in the following test examples 2 to 4.

(Test Example 2: Foaming property)
Each hair cleansing composition in the above Test Example 1 was applied to the evaluation wig, and the composition was rubbed into the wig to create a lather. The lathering properties were evaluated according to the following criteria.

<Evaluation Criteria for Foamability>
◯ (Good): Lathers sufficiently to cover entire hair.
× (bad): The foam does not cover the entire hair, and the hair is visible.

(Test Example 3: Foam Elasticity)
The foam produced in Test Example 2 above was pressed with the hand to feel the foam elasticity, and evaluated according to the following criteria.

<Evaluation criteria for foam elasticity>
◯ (Good): Elasticity (resistance) is clearly felt.
× (bad): No elasticity (resistance) felt.

(Test Example 4: Hair squeak when washed with water)
In the above Test Example 1, the creaking of the hair during washing with water was evaluated based on the feel when the hair cleansing composition was washed off from the evaluation wig, according to the following criteria.

<Evaluation criteria for hair squeakiness during washing>
◯ (Good): The finger can be passed through without any snagging.
× (bad): When putting your finger through the material, there is a strong feeling of gripping.

The compositions and results are shown in Tables 1 to 3 below.

The following is a formulation example of the hair cleansing composition of the present invention.

(Formulation example 1: Hair shampoo)
Sodium lauroyl aspartate 1.5% by mass
Sodium lauryl glycol carboxylate 4.0% by mass
Disodium laureth sulfosuccinate 4.0% by mass
Polyquaternium-10 0.5% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 3.0% by mass
POE (3) coconut oil fatty acid monoethanolamide 1.0 mass%
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 0.4% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

(Formulation example 2: Hair shampoo)
Triethanolamine lauroyl glutamate 3.0% by mass
Sodium lauryl glycol carboxylate 7.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 4.0% by mass
Laureth-3 1.0% by mass
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 0.4% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

(Formulation example 3: Hair shampoo)
Acyl (C12,14) aspartic acid triethanolamine 3.0% by mass
Sodium lauryl glycol carboxylate 7.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 4.0% by mass
Diethylene glycol laurate 0.5% by mass
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 1.5% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

(Formulation Example 4: Hair Shampoo)
Acyl (C12,14) aspartic acid triethanolamine 3.0% by mass
Sodium lauryl glycol carboxylate 7.0% by mass
Sodium lauroyl methyl taurate 3.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 4.0% by mass
Diethylene glycol laurate 0.5% by mass
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 0.1% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
1,3-butylene glycol 1.0% by mass
Hydrolyzed conchiolin liquid 0.1% by mass
Purified water remaining total amount 100% by mass

(Formulation example 5: Hair shampoo)
Sodium lauroyl aspartate 1.5% by mass
Sodium lauryl glycol carboxylate 5.0% by mass
Sodium lauroyl methyl taurate 3.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 4.0% by mass
PEG-3 cocamide 0.5% by mass
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 0.1% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Meadowfoam-δ-lactone 0.3% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

(Formulation Example 6: Hair Shampoo)
Sodium lauroyl aspartate 1.5% by mass
Sodium lauryl glycol carboxylate 4.0% by mass
Disodium laureth sulfosuccinate 4.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 3.0% by mass
POE (3) coconut oil fatty acid monoethanolamide 1.0 mass%
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 3.0% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Hydrolyzed keratin 1.0% by mass
Purified water remaining total amount 100% by mass

(Formulation Example 7: Hair Shampoo)
Sodium lauroyl aspartate 1.5% by mass
Sodium lauryl glycol carboxylate 4.0% by mass
Disodium laureth sulfosuccinate 4.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 3.0% by mass
POE (3) coconut oil fatty acid monoethanolamide 1.0 mass%
Cocamidopropyl betaine 3.0% by mass
Lauramidopropyl hydroxysultaine 2.0% by mass
Levulinic acid 3.5% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Hydrolyzed silk 0.5% by weight
Purified water remaining total amount 100% by mass

(Formulation Example 8: Hair Shampoo)
Sodium lauroyl aspartate 1.5% by mass
Sodium lauryl glycol carboxylate 4.0% by mass
Sodium laureth sulfate 4.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 3.0% by mass
POE (3) coconut oil fatty acid monoethanolamide 1.0 mass%
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 3.5% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

Although it is different from the hair cleanser composition of the present invention (a hair cleanser composition containing specific amounts of components (A) to (D)), even a hair cleanser composition that does not contain an N-acylamino acid surfactant (hereinafter, sometimes referred to as hair cleanser composition (X)) can improve to some extent the property of hair softness felt during washing by blending levulinic acid. Hair cleanser composition (X) is, for example, a hair cleanser composition in which levulinic acid is blended with a conventionally known hair cleanser composition that contains laureth sulfate as the main cleansing component. A formulation example of such hair cleanser composition (X) is shown below as a "Reference formulation example". In hair cleanser composition (X), the content of levulinic acid is increased, thereby improving to some extent the property of hair softness felt during washing.

(Reference formulation example 1: Hair shampoo)
Sodium laureth sulfate 8.0% by mass
Polyquaternium-10 0.4% by mass
Polyquaternium-67 0.1% by mass
Polyquaternium-7 0.2% by mass
Cocamide methyl MEA 3.0% by mass
POE (3) coconut oil fatty acid monoethanolamide 1.0 mass%
Cocamidopropyl betaine 5.0% by mass
Levulinic acid 3.5% by mass
Diisostearyl malate 0.5% by mass
Isopentyldiol 5.0% by mass
Sodium benzoate 0.5% by mass
Phenoxyethanol 0.3% by mass
Ethanol 0.5% by mass
Purified water remaining total amount 100% by mass

Claims (4)

The composition includes the following components A, B, C, D, and E:
The content of the component A is 0.05% by mass or more and 10.0% by mass or less,
The content of the component B is 0.3% by mass or more and 15.0% by mass or less,
The content of the component C is 0.3% by mass or more and 15.0% by mass or less,
A hair wash composition, comprising the component D in an amount of 0.1% by mass or more and 5.0% by mass or less.
Component A: Levulinic acid Component B: N-acyl amino acid surfactant Component C: Amphoteric surfactant Component D: Cationic polymer Component E: Water The hair wash composition according to claim 1, wherein the component B comprises the following component B1:
Component B1: N-acylaspartate The hair wash composition according to claim 1 or 2, which comprises the following component F:
Component F: Ether carboxylic acid surfactant The hair wash composition according to claim 1 or 2, which does not contain laureth sulfate or contains it at 0.1% by mass or less.