Hair detergent composition or fiber detergent composition for head ornament products

Abstract

The present invention relates to a hair detergent composition or a fiber detergent composition for head ornament products that has excellent low-temperature stability, as well as good foaming during washing, foam creaminess, and smoothness during rinsing.　Namely, the present invention provides a hair detergent composition or a fiber detergent composition for head ornament products that includes the following components (A) to (D): (A) an alkyl glucoside; (B) a sulfonic acid-based anionic surfactant including an acyl taurine salt; (C) an alkyl ether carboxylic acid or a salt thereof; and (D) an amphoteric surfactant, wherein the included quantity of the component (A) is 2.0 mass% or more, and the included quantity of the acyl taurine salt in the component (B) is 25 mass% or more.

Description

Hair cleanser composition or fiber cleanser composition for head accessories

[0001] The present invention relates to a hair wash composition or a fabric wash composition for head accessories.

[0002] In recent years, amino acid-based surfactants, which are mild and cause little irritation to the scalp and skin, have become popular on the market as cleansing ingredients in detergents for hair or fibers used in headwear products, and formulations using carboxylic acid-based surfactants, including acyl amino acids, are on the rise.

[0003] For example, Patent Document 1 discloses a cleanser composition that is mild to skin or hair, which is able to suppress the elution of intercellular lipids even when sufficient foaming is achieved by combining an amphoteric surfactant or a specific nonionic surfactant with an anionic surfactant selected from acylated amino acids, acyltaurines, polyoxyalkylene alkyl ether carboxylic acids, etc. Patent Document 2 discloses a cleanser composition that is highly antiseptic, provides good foaming, and has an excellent feel when used, by combining at least one of polyhydric alcohols and sugars with an anionic surfactant and an amphoteric surfactant.

[0004] (Patent Document 1) JP 2022-73255 A (Patent Document 2) JP 2021-127372 A

[0005] The present invention relates to a hair wash composition or a fabric wash composition for head accessories, comprising the following components (A) to (D): (A) an alkyl glucoside, (B) a sulfonic acid-based anionic surfactant containing an acyltaurine salt, (C) an alkyl ether carboxylic acid or a salt thereof, and (D) an amphoteric surfactant, wherein the content of component (A) is 2.0% by mass or more, and the content of the acyltaurine salt in component (B) is 25% by mass or more.

[0006] Carboxylic acid surfactants have insufficient solubility in water and often precipitate during formulation, resulting in cloudy cleaning compositions. Therefore, when a carboxylic acid surfactant is incorporated, it is difficult to prepare a clear and stable cleaning composition, and stability at low temperatures is particularly an issue. Furthermore, compared with surfactants such as laureth sulfate, which have high foaming and stability, carboxylic acid surfactants have poor foaming properties, which poses a challenge in improving the cleaning performance of the cleaning composition. In other words, no cleaning composition using a carboxylic acid surfactant has been achieved that ensures good low-temperature stability while also providing good foaming during cleaning, creamy foam, and smoothness during rinsing.

[0007] The present invention provides a hair wash composition or a fiber wash composition for head accessories that contains a carboxylic acid surfactant, has excellent low-temperature stability, and when applied to hair or fibers for head accessories such as wigs, exhibits good foaming during washing, creamy foam, and smoothness during rinsing.The present inventors have found that the above problems can be solved by incorporating an alkyl glucoside, a specific sulfonic acid anionic surfactant, an alkyl ether carboxylic acid or a salt thereof, and an amphoteric surfactant in a specified blend.

[0008] The hair wash composition or the fiber cleanser composition for head accessories of the present invention has excellent low-temperature stability, and when applied to hair or fibers for head accessories such as wigs, it is possible to provide a hair wash composition or a fiber cleanser composition for head accessories that is good in terms of foaming during washing, creaminess of the foam, and smoothness during rinsing.

[0009] FIG. 1 is a diagram showing the evaluation criteria for the appearance (stability) of hair wash compositions or fabric wash compositions for head accessories in the examples. Detailed Description of the Invention

[0010] [Hair cleanser composition or fabric cleanser composition for head accessories] The hair cleanser composition or fabric cleanser composition for head accessories of the present invention contains the following components (A) to (D): (A) an alkyl glucoside, (B) a sulfonic acid-based anionic surfactant containing an acyltaurine salt, (C) an alkyl ether carboxylic acid or a salt thereof, and (D) an amphoteric surfactant, wherein the content of component (A) is 2.0% by mass or more, and the content of the acyltaurine salt in component (B) is 25% by mass or more. Due to the above-mentioned configuration, the hair cleanser composition or fabric cleanser composition for head accessories of the present invention is a hair cleanser composition or fabric cleanser composition for head accessories that has excellent low-temperature stability, and exhibits good foaming during cleansing, creamy foam, and smoothness during rinsing.

[0011] <Definitions> In this specification, the hair wash composition and the fabric cleanser composition for head accessories of the present invention may be collectively referred to as the "cleaner composition." In this specification, "hair" primarily refers to human hair, but also includes hair cut from a human head. In this specification, "head accessories" refers to, for example, hair wigs, hairpieces, weaving, hair extensions, braided hair, hair accessories, doll hair, etc. In this specification, "fibers for head accessories" refers to fibers used in the head accessories. In this specification, "comprising component X" or "containing component X" also means "composed of component X." In this specification, storage stability at -5°C is used as an indicator of "storage stability in a low-temperature environment." If a composition has excellent storage stability at -5°C, it can be suitably used as a hair wash composition or a fabric cleanser composition for head accessories even in cold regions. Hereinafter, "storage stability in a low-temperature environment" will also be simply referred to as "low-temperature stability." Furthermore, in the present invention, "hair or fibers for head accessories" is also referred to as "hair, etc.", "hair washing or cleaning fibers for head accessories" is also referred to as "hair washing, etc." or simply "cleaning," and "smoothness of hair or fibers for head accessories when rinsing" is also referred to as "smoothness of hair, etc. when rinsing" or simply "smoothness when rinsing."

[0012] The reason why the above-described configuration of the cleanser composition of the present invention achieves the effects of the present invention is unclear, but is presumed to be as follows. The cleanser composition of the present invention contains a sulfonic acid-based anionic surfactant containing 2.0 mass% or more of an alkyl glucoside as component (A), 25 mass% or more of an acyltaurine salt as component (B), an alkyl ether carboxylic acid or a salt thereof as component (C), and an amphoteric surfactant as component (D). By containing component (C), the cleanser composition can impart cleansing properties while being gentle to the scalp and skin. More specifically, during hair washing or other such use with the cleanser composition, dirt such as sebum is trapped in micelles containing component (C), a carboxylic acid-based surfactant, and the dirt trapped in the micelles is washed away during rinsing. On the other hand, it is believed that when exposed to a low-temperature environment below the Krafft point, the packing between surfactants of component (C) becomes dense, hydrate crystals are precipitated, and stability (transparency) is reduced. However, in the present invention, by blending components (A) and (B), which are surfactants with high solubility in water, component (C) forms mixed micelles with other surfactants, even in a low-temperature environment, which is thought to lower the Krafft point and improve low-temperature stability.Furthermore, by blending components (A), (B), and (D) together, it is thought that good properties can be imparted to the product, such as foaming during cleansing, creamy foam, and smoothness during rinsing, while maintaining the improved low-temperature stability.

[0013] The detergent composition of the present invention is applicable to hair or fibers for head accessories. Among these, hair is preferred. Fibers for head accessories may be either naturally-derived or synthetic fibers, but naturally-derived fibers are preferred. Naturally-derived fibers refer to fibers collected from natural plants and animals (excluding human hair) or artificially produced fibers made from proteins, polysaccharides, and the like. Among these, the naturally-derived fibers are preferably animal hair or fibers artificially produced from proteins or polysaccharides, such as keratin, collagen, casein, and proteins derived from soybeans, peanuts, corn, silk, etc., more preferably regenerated protein fibers made from keratin, collagen, casein, soybean protein, peanut protein, corn protein, silk protein (e.g., silk fibroin), even more preferably regenerated protein fibers such as regenerated collagen fibers made from collagen and regenerated silk fibers made from silk fibroin, and even more preferably regenerated collagen fibers. Regenerated collagen fibers can be produced by known techniques. The composition of regenerated collagen fibers does not need to be 100% collagen, and may contain natural polymers, synthetic polymers, additives, etc. to improve quality. Furthermore, regenerated collagen fibers may be post-processed or post-treated. Filaments are preferred as the form of regenerated collagen fibers. Filaments are generally removed from bobbins or boxes. In addition, filaments emerging from the drying process in the regenerated collagen fiber manufacturing process can also be used directly.

[0014] Examples of synthetic fibers include fibers containing a synthetic resin as a main component. From the viewpoint of ease of production of synthetic fibers and achieving a texture similar to that of human hair, the synthetic resin is preferably a thermoplastic resin, more preferably at least one selected from the group consisting of polyester resin, polyamide resin, polyimide resin, polyamideimide resin, vinyl chloride resin, polycarbonate resin, polyphenylene sulfide resin, and modacrylic resin (a copolymer of acrylonitrile and vinyl chloride). The term "main component" as used herein refers to a component whose content in the synthetic fiber is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more, but not more than 100% by mass. In addition to the synthetic resin, the synthetic fiber may further contain various components such as a flame retardant, a flame retardant auxiliary, a light or heat stabilizer, a fluorescent agent, an antioxidant, an antistatic agent, and an ultraviolet absorber, provided that the effects of the present invention are not impaired.

[0015] <Component (A): Alkyl Glucoside> The cleanser composition of the present invention contains an alkyl glucoside as component (A). Component (A) is a nonionic surfactant in which a sugar and an aliphatic alcohol are glycosidicly bonded. The inclusion of component (A) in the cleanser composition improves the foaming and creaminess of the foam during cleansing, as well as the smoothness during rinsing, while also improving stability at low temperatures.

[0016] From the viewpoint of imparting favorable properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, component (A) used in the present invention preferably contains an alkyl glucoside having a linear or branched alkyl group having from 8 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, and even more preferably from 8 to 14 carbon atoms. Specific examples of this (A) alkyl glucoside include decyl glucoside, lauryl glucoside, and coco glucoside (coconut oil alkyl glucoside), and preferably one or more selected from the group consisting of decyl glucoside, lauryl glucoside, and coco glucoside (coconut oil alkyl glucoside), more preferably one or more selected from the group consisting of decyl glucoside and lauryl glucoside, and even more preferably lauryl glucoside. Commercially available alkyl glucosides (A) include, for example, Mydol 10 (decyl glucoside) and Mydol 12 (lauryl glucoside), both manufactured by Kao Corporation. Component (A) can be used singly or in combination of two or more.

[0017] <Component (B): Sulfonic Acid Anionic Surfactant Containing an Acyl Taurine Salt> The cleanser composition of the present invention contains, as component (B), a sulfonic acid anionic surfactant containing an acyltaurine salt. Component (B) is an anionic surfactant having a sulfonic acid group and containing an acyltaurine salt. By containing component (B), the cleanser composition of the present invention can improve stability at low temperatures while improving foaming during cleansing, foam creaminess, and smoothness during rinsing.

[0018] The acyltaurine salt contained in component (B) includes a compound represented by the following general formula (I): 1 CONR 2 CH2CH2SO3M 1 (I) (wherein, R 1 represents a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms; R 2 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms; M 1represents a hydrogen atom, an alkali metal, or an alkaline earth metal.) R in the acyltaurine salt represented by general formula (I) 1 The number of carbon atoms in R is preferably 7 or more, more preferably 9 or more, even more preferably 11 or more, and is preferably 21 or less, more preferably 19 or less, even more preferably 17 or less, and still more preferably 15 or less, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creaminess of the foam, and smoothness during rinsing. 1 The group represented by CO is preferably one or more selected from the group consisting of lauroyl, myristoyl, palmitoyl, and stearoyl, more preferably lauroyl. The counter ion of the acyltaurine salt is preferably one or more selected from the group consisting of sodium, potassium, and ammonium, more preferably sodium, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing.

[0019] The acyltaurine salt preferably includes an N-methyl-N-acyltaurine salt, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creaminess of the foam, and smoothness during rinsing. Furthermore, the N-methyl-N-acyltaurate is preferably at least one selected from the group consisting of N-lauroyl-N-methyltaurine, N-myristoyl-N-methyltaurine, N-stearoyl-N-methyltaurine, and N-coconut oil fatty acid-N-methyltaurine (coconut oil fatty acid-N-methyltaurine), more preferably at least one selected from the group consisting of sodium N-lauroyl-N-methyltaurine, sodium N-myristoyl-N-methyltaurine, sodium N-stearoyl-N-methyltaurine, and N-coconut oil fatty acid-N-methyltaurine (sodium cocoyl methyltaurine), more preferably sodium N-coconut oil fatty acid-N-methyltaurine (sodium cocoyl methyltaurine).

[0020] As the acyltaurine salt, commercially available acyltaurine salts can also be used. Commercially available acyltaurine salts include, for example, "Diapon K-SF" (cocoyl methyl taurine sodium), "Diapon K-SG" (cocoyl methyl taurine sodium), and "Diapon HF-SF" (caproyl methyl taurine sodium) manufactured by NOF Corporation, and "NIKKOL CMT-30" (cocoyl methyl taurine sodium) and "NIKKOK LMT" (lauroyl methyl taurine sodium) manufactured by Nikko Chemicals Co., Ltd. These acyltaurine salts can be used alone or in combination of two or more.

[0021] The content of the acyltaurine salt contained in component (B) of the present invention is preferably 25% by mass or more, more preferably 50% by mass or more, even more preferably 75% by mass or more, and even more preferably 100% by mass, based on 100% by mass of component (B), from the viewpoint of imparting good properties with respect to low-temperature stability, foaming during washing, creaminess of the foam, and smoothness during rinsing.

[0022] The component (B) used in the present invention can be any known sulfonic acid-based anionic surfactant, including, in addition to the acyltaurine salt, alkylbenzenesulfonic acid, alkylsulfonic acid, olefinsulfonic acid, α-sulfofatty acid, acylisethionic acid, alkylsulfosuccinic acid, and salts thereof. Among these, from the viewpoint of improving stability at low temperatures, component (B) preferably contains one or more selected from the group consisting of alkylbenzenesulfonic acid, alkylsulfonic acid, olefinsulfonic acid, α-sulfofatty acid, acylisethionic acid, alkylsulfosuccinic acid, and salts thereof. Furthermore, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, it is more preferable to contain olefinsulfonic acid or a salt thereof.

[0023] From the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the number of carbon atoms in the alkyl group, olefin in the olefin sulfonic acid, acyl group, or constituent fatty acid of the sulfonic acid anionic surfactant is preferably from 8 to 22, more preferably from 8 to 18, and even more preferably from 10 to 18. From the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, counter ions of the anionic group of the sulfonic acid anionic surfactant include alkali metal ions such as sodium ions and potassium ions; alkaline earth metal ions such as calcium ions and magnesium ions; ammonium ions; alkanolammoniums having from 1 to 3 alkanol groups each having 2 or 3 carbon atoms (e.g., monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium); and cations derived from basic amino acids such as arginine and lysine.

[0024] The olefin sulfonic acid or a salt thereof includes α-olefin sulfonic acid, internal olefin sulfonic acid, or a salt thereof, and the number of carbon atoms thereof is preferably 8 or more and 22 or less, more preferably 8 or more and 18 or less, and even more preferably 10 or more and 18 or less, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing. The counter ion of the olefin sulfonate is preferably one or more selected from the group consisting of sodium, potassium, and ammonium, more preferably sodium, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing. The olefin sulfonate may be sodium olefin sulfonate having preferably 8 or more and 22 carbon atoms, more preferably 8 or more and 18 carbon atoms, and even more preferably 10 or more and 18 carbon atoms, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing.

[0025] In addition, when acyl isethionic acid or its salt is used as component (B) of the present invention in addition to the acyltaurine salt, it is preferable to limit its content in order to impart good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing. Specifically, the content of acyl isethionic acid or its salt is preferably 20% by mass or less, more preferably 10% by mass or less, and preferably 5% by mass or less, based on 100% by mass of component (B). It is even more preferable that acyl isethionic acid or its salt is substantially not contained in component (B). Note that "substantially not containing acyl isethionic acid or its salt" means that the content of acyl isethionic acid or its salt is preferably less than 0.1% by mass, more preferably less than 0.01% by mass, and even more preferably 0% by mass, based on 100% by mass of component (B).

[0026] <Component (C): Alkyl Ether Carboxylic Acid or Salt Thereof> The cleanser composition of the present invention contains an alkyl ether carboxylic acid or a salt thereof as component (C). Component (C) is a carboxylic acid surfactant. By including component (C), the cleanser composition can impart cleansing properties while being mild to the scalp and skin.

[0027] The cleaning composition of the present invention preferably contains, as component (C), an alkyl ether carboxylic acid represented by the following general formula (II) or a salt thereof: 3 O(CHCHO) q CH2COOM 2 (II) (In formula (II), R 3 represents a linear or branched alkyl group having 8 to 18 carbon atoms, 2 represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or an organic ammonium, and q is the average number of moles added, which is a number of 0 to 20.

[0028] In formula (II), R 3is a linear or branched alkyl group having from 8 to 18 carbon atoms, and from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, it is preferably a linear or branched alkyl group having from 12 to 16 carbon atoms, more preferably a linear alkyl group having from 12 to 16 carbon atoms. Also, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, q is preferably from 1 to 18, more preferably from 2 to 15, and even more preferably from 3 to 12. In formula (1), M 2 is preferably a hydrogen atom, an alkali metal or ammonium, more preferably an alkali metal, even more preferably sodium or potassium, and even more preferably sodium.

[0029] Specific examples of the alkyl ether carboxylic acid and its salt include polyoxyethylene lauryl ether acetic acid (laureth acetic acid) and polyoxyethylene lauryl ether sodium acetate (sodium laureth acetate), each of which has an average number of moles of oxyethylene groups added of 0 to 20.

[0030] Commercially available laureth acetic acid products include "AKYPO LM-26C" (average number of moles added q = 2.6), "KAO AKYPO RLM-45" (average number of moles added q = 4.5), and "KAO AKYPO RLM-100" (average number of moles added q = 10), all manufactured by Kao Chemical GmbH. Commercially available sodium laureth acetate products include "AKYPO LM-26SD" (average number of moles added q = 2.6), "KAO AKYPO RLM-45NV" (average number of moles added q = 4.5), and "KAO AKYPO RLM-100NV" (average number of moles added q = 10), all manufactured by Kao Corporation, and the "Viewlite LCA" series (average number of moles added q = 2 to 4), all manufactured by Sanyo Chemical Industries, Ltd. This component (C) can be used alone or in combination of two or more types. When two or more types of laureth acetic acid are used, from the viewpoint of imparting good properties with respect to low-temperature stability and smoothness during rinsing, it is preferable to use two or more types containing one or more structures with q=4 or more, and from the viewpoint of imparting good properties with respect to foaming during washing, creamy foam, and smoothness during rinsing, it is preferable to use two or more types containing one or more structures with q=less than 4.

[0031] <Component (D): Amphoteric Surfactant> The cleaning composition of the present invention contains an amphoteric surfactant as component (D). By containing component (D), the cleaning composition of the present invention can maintain low-temperature stability while improving foaming during cleansing, creamy foam, and smoothness during rinsing. Examples of component (D) used in the present invention include betaine surfactants and amine oxide surfactants. Among these, a betaine surfactant is preferably contained from the viewpoint of imparting good properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing.

[0032] Examples of betaine surfactants include carboxybetaine surfactants such as alkyldimethylaminoacetic acid betaine and fatty acid amidopropyl betaine; sulfobetaine surfactants such as alkylsulfobetaine and alkylhydroxysulfobetaine; imidazoline betaine surfactants; and phosphobetaine surfactants.

[0033] The alkyldimethylaminoacetic acid betaine preferably includes one having an alkyl group having from 8 to 22 carbon atoms, more preferably from 10 to 20 carbon atoms, and specific examples include lauryldimethylaminoacetic acid betaine and stearyldimethylaminoacetic acid betaine. The fatty acid amidopropyl betaine preferably includes one having an acyl group having from 8 to 18 carbon atoms, more preferably from 10 to 16 carbon atoms. Specific examples include lauric acid amidopropyl betaine (lauramidopropyl betaine), palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine (cocamidopropyl betaine).

[0034] The alkyl sulfobetaine preferably includes an alkyl sulfobetaine having an alkyl group having from 8 to 22 carbon atoms, more preferably from 10 to 18 carbon atoms. Specific examples of alkyl sulfobetaine include lauryl dimethyl sulfoethyl betaine, lauryl dimethyl sulfopropyl betaine, myristyl dimethyl sulfoethyl betaine, myristyl dimethyl sulfopropyl betaine, stearyl dimethyl sulfoethyl betaine, stearyl dimethyl sulfopropyl betaine, and coconut oil fatty acid dimethyl sulfopropyl betaine.

[0035] The alkylhydroxysulfobetaine preferably includes an alkyl group having from 8 to 22 carbon atoms, more preferably from 10 to 18 carbon atoms, and at least one hydroxy group. Specific examples of alkylhydroxysulfobetaine include lauryl dimethyl sulfo(hydroxyethyl)betaine, lauryl dimethyl sulfo(hydroxypropyl)betaine (also known as lauryl hydroxysultaine or lauryl hydroxysulfobetaine), myristyl dimethyl sulfo(hydroxyethyl)betaine, myristyl dimethyl sulfo(hydroxypropyl)betaine, stearyl dimethyl sulfo(hydroxypropyl)betaine, bis-(2-hydroxyethyl)sulfoethyl betaine, and lauryl bis-(2-hydroxyethyl)sulfopropyl betaine.

[0036] Examples of imidazoline betaine amphoteric surfactants include N-acylaminoethyl-N-2-hydroxyethylaminocarboxylates, such as N-cocoacyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine (also known as sodium cocoamphoacetate or 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine), N-cocoacyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine (sodium cocoamphopropionate), and N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (sodium lauroamphoacetate). Examples of phosphobetaine amphoteric surfactants include lauryl hydroxyphosphobetaine.

[0037] Among the above, from the viewpoint of imparting favorable properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, component (D) is preferably at least one selected from the group consisting of carboxybetaine types, sulfobetaine types, and imidazoline betaine types, more preferably at least one selected from the group consisting of fatty acid amidopropyl betaine, alkylhydroxysulfobetaine, and N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate, and even more preferably at least one selected from the group consisting of lauric acid amidopropyl betaine, lauryl dimethyl sulfo(hydroxypropyl)betaine, and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine. Component (D) can be used singly or in combination of two or more types.

[0038] <Component (A'): Nonionic Surfactant Other Than Component (A)> The cleanser composition of the present invention may further contain a nonionic surfactant other than component (A) as component (A') for the purpose of enhancing the favorable properties of foaming during cleansing and smoothness during rinsing of hair, etc. This component (A') is an optional component. Examples of component (A') used in the present invention include polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, alkyl glyceryl ethers, higher fatty acid sucrose esters, polyglycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, fatty acid alkanolamides, alkylamine oxides, and alkylamidoamine oxides. Among these, from the viewpoints of imparting good properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, and further improving the formulation viscosity, the cleanser composition of the present invention preferably contains one or more selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, alkyl glyceryl ethers, and fatty acid alkanolamides. Of the component (A'), it is more preferable to contain (A'') a polyoxyalkylene alkyl ether.

[0039] Examples of the (A″) polyoxyalkylene alkyl ether include polyoxypropylene (3) caprylyl ether, polyoxyethylene (3) lauryl ether, polyoxyethylene (16) lauryl ether, polyoxyethylene (23) lauryl ether, polyoxyethylene (13) stearyl ether, polyoxyethylene (50) stearyl ether, polyoxyethylene (20) behenyl ether, polyoxyethylene (30) behenyl ether, polyoxyethylene (7) cetyl ether, and polyoxyethylene (13) cetyl ether. From the viewpoint of imparting good properties such as low-temperature stability, foaming during cleansing, and foam creaminess, one or more selected from the group consisting of polyoxypropylene (3) caprylyl ether, polyoxyethylene (3) lauryl ether, polyoxyethylene (16) lauryl ether, and polyoxyethylene (23) lauryl ether are preferred. Commercially available products include "Kao Sofcare GP-1" (PPG-3 caprylyl ether), "Emulgen 103" (laureth-3), "Emulgen 116" (laureth-16), and "Emulgen 123P" (laureth-23), all manufactured by Kao Corporation.

[0040] Examples of polyoxyalkylene sorbitan fatty acid esters include polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan triisostearate. From the viewpoints of imparting good properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, and also improving formulation viscosity, one or more selected from the group consisting of polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tristearate are preferred. Commercially available products thereof include "RHEODOL TW-O106V" (PEG-6 sorbitan oleate) and "RHEODOL TW-IS399C" (PEG-160 sorbitan triisostearate), both manufactured by Kao Corporation.

[0041] Examples of polyoxyalkylene fatty acid esters include polyoxyethyleneglycerin monostearate, polyoxyethyleneglycerin monomyristate, and polyoxyethyleneglycerin coconut oil fatty acid, with polyoxyethyleneglycerin coconut oil fatty acid being preferred from the viewpoint of imparting favorable properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing. Specific examples include "LEVENOL C-301" manufactured by Kao Corporation and "CETIOL HE-JP" (PEG-7 glyceryl coconut oil fatty acid) manufactured by BASF Japan Ltd.

[0042] Examples of alkyl glyceryl ethers include caprylyl glyceryl ether, ethylhexyl glyceryl ether, decyl glyceryl ether, isodecyl glyceryl ether, stearyl glyceryl ether, and isostearyl glyceryl ether, and from the viewpoint of imparting favorable properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, one or more selected from the group consisting of ethylhexyl glyceryl ether and isodecyl glyceryl ether are preferred. Specific examples include "Penetol GE-ID" (isodecyl glyceryl ether) and "Penetol GE-EH" (ethylhexylglycerin), both manufactured by Kao Corporation.

[0043] The fatty acid alkanolamide preferably includes fatty acid alkanolamides and polyalkylene fatty acid alkanolamides having an alkyl group having from 8 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, and even more preferably from 10 to 14 carbon atoms. Specific examples of the fatty acid alkanolamide include lauric acid monoethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid mono-N-methylethanolamide, coconut oil fatty acid monoisopropanolamide, polyoxyethylene lauric acid monoethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide, polyoxypropylene myristate monoethanolamide, and polyoxypropylene coconut oil fatty acid monoisopropanolamide. From the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, and foam creaminess, one or more selected from the group consisting of coconut oil fatty acid monoethanolamide, coconut oil fatty acid mono-N-methylethanolamide, and polyoxypropylene coconut oil fatty acid monoisopropanolamide are preferred. Commercially available products thereof include "Amizol CME" (cocamide MEA) manufactured by Kawaken Fine Chemicals Co., Ltd., "Aminone C-11S" (cocamide methyl MEA) manufactured by Kao Corporation, and "Amizet 1PC" (PPG-2 cocamide) manufactured by Kawaken Fine Chemicals Co., Ltd. This component (A') can be used alone or in combination of two or more types.

[0044] <Component (E): Anionic Surfactant Other Than Component (B) and Component (C)> The cleanser composition of the present invention may further contain, as component (E), an anionic surfactant other than component (B) and component (C) for the purpose of enhancing favorable properties such as foaming during cleansing and smoothness during rinsing of hair, etc. This component (E) is an optional component. Examples of component (E) used in the present invention include N-acylamino acid-based anionic surfactants and sulfate ester-based anionic surfactants. Specific examples of N-acylamino acid-based anionic surfactants include acyl glutamates, acylaspartates, acylalanine salts, acylmethylalanine salts, acyl sarcosine salts, and acylglycine salts. Specific examples of sulfate ester-based anionic surfactants include alkyl sulfates and polyoxyalkylene alkyl ether sulfates. Counterions of the anionic groups in component (E) include alkali metal ions such as sodium ions and potassium ions; alkaline earth metal ions such as calcium ions and magnesium ions; ammonium ions; and alkanolammoniums having one to three alkanol groups each having two or three carbon atoms (e.g., monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.). Among these, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, one or more selected from the group consisting of acylalanine salts, acylmethylalanine salts, and acylsarcosine salts are preferred. Furthermore, from the viewpoint of imparting good properties such as smoothness during rinsing, it is preferred that the component (E) does not contain a sulfate ester-based anionic surfactant. This component (E) can be used alone or in combination of two or more.

[0045] <Component (F): Cationic Polymer> The cleansing composition of the present invention may further contain a cationic polymer as component (F) for the purpose of enhancing the favorable properties of low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing. Component (F) is an optional component. In this specification, the term "cationic polymer" refers to a water-soluble polymer that has cationic groups and has an overall cationic charge, and the term "cationic group" refers to a cationic group or a group that can be ionized to become a cationic group. Specific examples of this cationic group include a primary amino group, a secondary amino group, a tertiary amino group, and a quaternary ammonium group.

[0046] Examples of the component (F) used in the present invention include cationized polygalactomannans such as cationized guar gum, cationized tara gum, and cationized locust bean gum; cationized cellulose; cationized hydroxyalkylcelluloses such as cationized hydroxyethyl cellulose and cationized hydroxypropyl cellulose; cationic starch; cationized polyvinyl alcohol; quaternized dialkylaminoalkyl (meth)acrylate polymers such as vinylpyrrolidone / N,N-dimethylaminoethyl diethyl methacrylate sulfate copolymer and N,N-dimethylaminoethyl diethyl methacrylate sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer; polydiallyldimethylammonium chloride, diallyldimethylammonium chloride / acrylic acid copolymer, and diallyldimethylammonium chloride / acrylic acid copolymer. vinylpyrrolidone / alkylaminoalkyl(meth)acrylate copolymer; vinylpyrrolidone / alkylaminoalkyl(meth)acrylate / vinylcaprolactam copolymer; vinylpyrrolidone / (meth)acrylamidopropyl trimethylammonium chloride copolymer; alkylacrylamide / (meth)acrylate / alkylaminoalkylacrylamide / polyethylene glycol (meth)acrylate copolymer; adipic acid / dimethylaminohydroxypropylethylenetriamine copolymer; and cationic polymers described in JP-A-53-139734 and JP-A-60-36407.

[0047] Among these, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, one or more selected from the group consisting of cationized polygalactomannan, cationized hydroxyalkyl cellulose, quaternized dialkylaminoalkyl (meth)acrylate polymer, and diallyl quaternary ammonium salt polymer are preferred, and one or more selected from the group consisting of cationized guar gum, cationized hydroxyalkyl cellulose, and quaternized dialkylaminoalkyl (meth)acrylate polymer are preferred.

[0048] Commercially available cationized guar gum products include JAGUAR Excel, JAGUAR C-17, and JAGUAR C-14-S (all manufactured by Solvay (Novecare)). Commercially available cationized hydroxyethyl cellulose products include Polyquaternium-10 (o-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride): UCARE POLYMER JR-30M and UCARE POLYMER JR-400 (all manufactured by The Dow Chemical Company), Poise C-60H and Poise C-150L (both manufactured by Kao Corporation), and Polyquaternium-67: SoftCAT (manufactured by The Dow Chemical Company). Commercially available cationized hydroxypropyl cellulose products include SOFCARE C-HP2W (manufactured by Kao Corporation). Commercially available N,N-dimethylaminoethyl methacrylate diethyl sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer products include POLYQUATERNIUM-52: SOFCARE KG-101E and SOFCARE KG-101W-E (both manufactured by Kao Corporation). Commercially available diallyldimethylammonium chloride / acrylamide copolymer products include POLYQUATERNIUM-7: MERQUAT 550 (manufactured by Lubrizol). Commercially available diallyldimethylammonium chloride / acrylic acid / acrylamide polymer products include POLYQUATERNIUM-39: MERQUAT 3331PR (manufactured by Lubrizol). Component (F) can be used alone or in combination of two or more types.

[0049] <Component (G): Organic Acid or Salt Thereof> The cleanser composition of the present invention may further contain an organic acid or a salt thereof as component (G) for the purpose of imparting favorable properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing. Component (G) is an optional component. Note that component (G) does not include components corresponding to components (B) to (E). The organic acid may be any known organic acid formulated in cleanser compositions, without any particular limitation. Examples of such organic acids include α-hydroxy acids such as lactic acid, malic acid, succinic acid, citric acid, and glycolic acid, and sulfonic acids such as benzenesulfonic acid and toluenesulfonic acid. Among these, from the viewpoint of imparting favorable properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, one or more selected from the group consisting of lactic acid, malic acid, succinic acid, and toluenesulfonic acid are preferred. The counter ion of this organic acid salt is preferably one or more selected from the group consisting of sodium, potassium, and ammonium, more preferably sodium, from the viewpoint of imparting good properties with respect to low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing. Among the above, from the viewpoint of imparting good properties with respect to low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, component (G) is preferably one or more selected from the group consisting of lactic acid, malic acid, succinic acid, toluenesulfonic acid, and salts thereof. This component (G) can be used alone or in combination of two or more.

[0050] <Aqueous Medium> The cleaning composition usually contains an aqueous medium. Examples of the aqueous medium include water and a water-soluble organic solvent. Examples of the water-soluble organic solvent include lower alcohols such as ethanol and isopropyl alcohol; and low-molecular-weight diols or triols having 6 or less carbon atoms such as 1,3-butylene glycol, glycerin, ethylene glycol, propylene glycol, and dipropylene glycol. Among these, it is preferable to contain water as the aqueous medium. The aqueous medium can improve the low-temperature stability of the cleaning composition of the present invention.

[0051] <Oil> The detergent composition may contain an oil. The oil may be any oily component used in pharmaceuticals, cosmetics, toiletries, miscellaneous goods, etc., and may be either poorly water-soluble or water-insoluble. Specific examples include ester oil, silicone oil, ether oil, hydrocarbon oil, higher alcohol, and carboxylic acid having a hydrocarbon group having 17 or more carbon atoms which may be substituted with a hydroxyl group. The oil can improve the creaminess of the foam of the detergent composition of the present invention and the smoothness during rinsing. Furthermore, from the viewpoints of low-temperature stability and foaming during washing, it is preferable that the detergent composition does not contain silicone oil.

[0052] <Other Components> The cleanser composition of the present invention may contain other components in addition to the above-described components as appropriate, provided that the components do not impair the object of the present invention. Examples of such components include surfactants (cationic surfactants) other than components (A) to (E) and component (A'), as well as components typically incorporated into cleansers, such as antioxidants, polymers, antidandruff agents, vitamins, disinfectants, anti-inflammatory agents, preservatives, chelating agents, moisturizers, ceramides, fragrances, colorants, UV absorbers, and pH adjusters.

[0053] <Contents> In order to impart good properties such as low-temperature stability, foaming during cleaning, creamy foam, and smoothness during rinsing, the content of each component in the cleansing composition of the present invention is preferably within the following ranges.

[0054] The content of component (A) in the detergent composition of the present invention is 2.0% by mass or more from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing. In particular, from the viewpoint of ensuring the low-temperature stability of the detergent composition when component (C) is blended, component (A) is contained in the detergent composition in an amount of 2.0% by mass or more. The content of component (A) is preferably 3.0% by mass or more, more preferably 4.0% by mass or more, even more preferably 5.0% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 12% by mass or less, and still more preferably 10% by mass or less. From the same viewpoint as above, the content of component (A) is preferably 2.0% by mass or more and 20% by mass or less, more preferably 3.0% by mass or more and 20% by mass or less, even more preferably 4.0% by mass or more and 20% by mass or less, still more preferably 4.0% by mass or more and 15% by mass or less, still more preferably 4.0% by mass or more and 12% by mass or less, still more preferably 4.0% by mass or more and 10% by mass or less, still more preferably 5.0% by mass or more and 10% by mass or less. From the same viewpoint as above, the content of component (A) may be preferably 2.0% by mass or more and 20% by mass or less, more preferably 2.0% by mass or more and 15% by mass or less, still more preferably 3.0% by mass or more and 15% by mass or less, still more preferably 3.0% by mass or more and 12% by mass or less, still more preferably 3.0% by mass or more and 10% by mass or less.

[0055] When component (A') is contained in the cleanser composition of the present invention, its content is preferably 0.5% by mass or more, more preferably 2.0% by mass or more, even more preferably 3.0% by mass or more, from the viewpoint of enhancing favorable properties such as foaming during cleansing and smoothness during rinsing of hair, etc., and is preferably 10% by mass or less, more preferably 9.0% by mass or less, and even more preferably 7.0% by mass or less. Furthermore, from the same viewpoints as above, the content of component (A') is preferably 0.5% by mass or more and 10% by mass or less, more preferably 2.0% by mass or more and 9.0% by mass or less, and even more preferably 3.0% by mass or more and 7.0% by mass or less. Furthermore, when component (A") is contained, its content 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, from the viewpoint of enhancing favorable properties such as foaming during cleansing and smoothness during rinsing of hair, etc., and is preferably 4.0% by mass or less, more preferably 3.0% by mass or less, and even more preferably 2.0% by mass or less. From the same viewpoint as above, the content of component (A″) is preferably 0.3 mass% or more and 4.0 mass% or less, more preferably 0.5 mass% or more and 3.0 mass% or less, and even more preferably 1.0 mass% or more and 2.0 mass% or less.

[0056] When the cleanser composition of the present invention contains component (A'), the content of component (A) relative to the total content of components (A) and (A') (i.e., the content of component (A) in the nonionic surfactant) is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, and preferably 100% by mass or less, from the viewpoints of enhancing good properties such as low-temperature stability, foaming during washing, and smoothness during rinsing of hair, etc. Furthermore, from the same viewpoints as above, the content of component (A) in the nonionic surfactant is preferably 30% by mass or more and 100% by mass or less, more preferably 40% by mass or more and 100% by mass or less, even more preferably 50% by mass or more and 100% by mass or less. Furthermore, when component (A") is contained, the content of component (A) relative to the total content of components (A) and (A") is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 75% by mass or more, and preferably 100% by mass or less, from the viewpoint of enhancing favorable properties such as low-temperature stability, foaming during washing, and smoothness during rinsing of hair, etc. Furthermore, from the same viewpoints as above, the content of component (A) relative to the total content of components (A) and (A") is preferably 50% by mass or more and 100% by mass or less, more preferably 60% by mass or more and 100% by mass or less, even more preferably 75% by mass or more and 100% by mass or less.

[0057] From the viewpoints of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the content of component (B) in the detergent composition of the present invention is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, even more preferably 2.0% by mass or more, still more preferably 3.0% by mass or more, still more preferably 5% by mass or more, and is preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 8.0% by mass or less, still more preferably 7.0% by mass or less, and still more preferably 6% by mass or less. From the same viewpoints as above, the content of component (B) is preferably 0.1% by mass or more and 15% by mass or less, more preferably 1.0% by mass or more and 10% by mass or less, still more preferably 2.0% by mass or more and 8.0% by mass or less, still more preferably 3.0% by mass or more and 7.0% by mass or less, and still more preferably 5% by mass or more and 6% by mass or less.

[0058] From the viewpoints of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the content of component (C) in the detergent composition of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, still more preferably 1.0% by mass or more, and is preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 7.0% by mass or less, and still more preferably 6.0% by mass or less. From the same viewpoints as above, the content of component (C) is preferably 0.1% by mass or more and 15% by mass or less, more preferably 0.5% by mass or more and 10% by mass or less, even more preferably 0.7% by mass or more and 10% by mass or less, still more preferably 1.0% by mass or more and 7.0% by mass or less, and still more preferably 1.0% by mass or more and 6.0% by mass or less.

[0059] From the viewpoints of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the content of component (D) in the detergent composition of the present invention 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, still more preferably 1.5% by mass or more, and is preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 9.0% by mass or less, and still more preferably 7.0% by mass or less. From the same viewpoints as above, the content of component (D) is preferably 0.1% by mass or more and 15% by mass or less, more preferably 0.5% by mass or more and 10% by mass or less, even more preferably 1.0% by mass or more and 9.0% by mass or less, and still more preferably 1.5% by mass or more and 7.0% by mass or less.

[0060] When the cleanser composition of the present invention contains component (E), the content thereof is, from the viewpoint of enhancing favorable properties such as foaming during cleansing and smoothness during rinsing of hair, etc., preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, still more preferably 1.0% by mass or more, and preferably 10% by mass or less, more preferably 7.0% by mass or less, even more preferably 5.0% by mass or less, and still more preferably 3.0% by mass or less. From the same viewpoints as above, the content of component (E) is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.5% by mass or more and 7.0% by mass or less, even more preferably 0.7% by mass or more and 5.0% by mass or less, and still more preferably 1.0% by mass or more and 3.0% by mass or less. When the cleanser composition of the present invention contains component (E), from the viewpoint of enhancing favorable properties such as low-temperature stability, foaming during cleansing, and smoothness during rinsing of hair, etc., the content of component (E) in the anionic surfactant is preferably 7.0% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less.

[0061] When the cleanser composition of the present invention contains component (F), its content 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, still more preferably 0.1% by mass or more, from the viewpoints of imparting good properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing, and is preferably 5.0% by mass or less, more preferably 3.0% by mass or less, and even more preferably 2.0% by mass or less. Also, from the same viewpoints as above, the content of component (C) is preferably 0.01% by mass or more and 5.0% by mass or less, more preferably 0.05% by mass or more and 3.0% by mass or less, and even more preferably 0.07% by mass or more and 2.0% by mass or less.

[0062] When the cleanser composition of the present invention contains component (G), its content is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, and preferably 10% by mass or less, more preferably 7% by mass or less, and even more preferably 5% by mass or less, from the viewpoints of imparting good properties such as low-temperature stability, foaming during cleansing, creamy foam, and smoothness during rinsing. Also, from the same viewpoints as above, the content of component (G) is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.1% by mass or more and 10% by mass or less, even more preferably 0.5% by mass or more and 10% by mass or less, still more preferably 1.0% by mass or more and 10% by mass or less, still more preferably 1.0% by mass or more and 7% by mass or less, and still more preferably 1.0% by mass or more and 5% by mass or less. Furthermore, from the same viewpoint as above, the content of component (G) may be preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.1% by mass or more and 7% by mass or less, even more preferably 0.5% by mass or more and 7% by mass or less, and still more preferably 0.5% by mass or more and 5% by mass or less.

[0063] The total content of components (A), (B), (C), and (D) in the detergent composition of the present invention is preferably 8.0% by mass or more, more preferably 10% by mass or more, even more preferably 14% by mass or more, from the viewpoints of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, and from the same viewpoints as above, is preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably 30% by mass or less, and still more preferably 28% by mass or less. More specifically, the total content of components (A), (B), (C), and (D) in the detergent composition of the present invention is preferably 8.0 to 40% by mass, more preferably 8.0 to 35% by mass, even more preferably 10 to 30% by mass, and still more preferably 14 to 28% by mass.

[0064] The content of the aqueous medium in the cleaning composition of the present invention is preferably 60% by mass or more, more preferably 65% ​​by mass or more, even more preferably 70% by mass or more, from the viewpoint of adjusting the cleaning composition to an appropriate concentration and viscosity, and is preferably 90% by mass or less, more preferably 85% by mass or less, even more preferably 80% by mass or less. From the same viewpoints as above, the content is preferably 60% by mass or more and 90% by mass or less, more preferably 65% ​​by mass or more and 85% by mass or less.

[0065] From the viewpoints of imparting favorable properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the mass ratio of component (A) to component (B) in the detergent composition of the present invention [(A) / (B)] is preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.4 or more, and still more preferably 0.5 or more, and is preferably 20 or less, more preferably 15 or less, even more preferably 10 or less, still more preferably 5.0 or less, and still more preferably 1.8 or less. From the same viewpoints as above, the mass ratio [(A) / (B)] is preferably 0.1 or more and 20 or less, more preferably 0.2 or more and 15 or less, even more preferably 0.3 or more and 10 or less, still more preferably 0.4 or more and 5.0 or less, and still more preferably 0.5 or more and 1.8 or less.

[0066] From the viewpoints of imparting favorable properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, the mass ratio of component (A) to component (C) in the detergent composition of the present invention [(A) / (C)] is preferably 0.1 or more, more preferably 0.5 or more, even more preferably 0.7 or more, still more preferably 0.9 or more, still more preferably 1.1 or more, and is preferably 10 or less, more preferably 7.0 or less, even more preferably 5.0 or less, still more preferably 3.5 or less, and still more preferably 3.0 or less. From the same viewpoints as above, the mass ratio [(A) / (C)] is preferably 0.1 or more and 10 or less, more preferably 0.5 or more and 7.0 or less, even more preferably 0.7 or more and 5.0 or less, still more preferably 0.9 or more and 3.5 or less, and still more preferably 1.1 or more and 3.0 or less.

[0067] From the viewpoint of imparting favorable properties such as low-temperature stability, foaming during washing, creaminess of the foam, and smoothness during rinsing, the mass ratio of component (A) to component (D) in the detergent composition of the present invention [(A) / (D)] is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, still more preferably 0.15 or more, still more preferably 0.2 or more, still more preferably 0.8 or more, still more preferably 1.0 or more, and is preferably 10 or less, more preferably 8.0 or less, still more preferably 6.0 or less, still more preferably 5.0 or less, and still more preferably 4.0 or less. From the same viewpoint as above, the mass ratio [(A) / (D)] is preferably 0.01 or more and 10 or less, more preferably 0.05 or more and 10 or less, even more preferably 0.1 or more and 10 or less, still more preferably 0.15 or more and 10 or less, still more preferably 0.2 or more and 10 or less, still more preferably 0.8 or more and 10 or less, still more preferably 1.0 or more and 10 or less, still more preferably 1.0 or more and 8.0 or less, still more preferably 1.0 or more and 6.0 or less, still more preferably 1.0 or more and 5.0 or less, and still more preferably 1.0 or more and 4.0 or less. From the same viewpoint as above, the mass ratio [(A) / (D)] may be preferably 0.01 or more and 10 or less, more preferably 0.05 or more and 8.0 or less, even more preferably 0.1 or more and 8.0 or less, still more preferably 0.15 or more and 8.0 or less, still more preferably 0.2 or more and 8.0 or less, and still more preferably 0.8 or more and 8.0 or less. From the same viewpoint as above, the mass ratio [(A) / (D)] may be preferably 0.01 or more and 10 or less, more preferably 0.1 or more and 6.0 or less, even more preferably 0.15 or more and 6.0 or less, still more preferably 0.2 or more and 6.0 or less, and even more preferably 0.8 or more and 6.0 or less. From the same viewpoint as above, the mass ratio [(A) / (D)] may be preferably 0.01 or more and 10 or less, more preferably 0.15 or more and 5.0 or less, even more preferably 0.2 or more and 5.0 or less, and even more preferably 0.8 or more and 5.0 or less. From the same viewpoint as above, the mass ratio [(A) / (D)] may be preferably 0.01 or more and 10 or less, more preferably 0.2 or more and 4.0 or less, and even more preferably 0.8 or more and 4.0 or less.

[0068] When the detergent composition of the present invention contains component (G), the mass ratio of component (A) to component (G) in the detergent composition [(A) / (G)] is, from the viewpoints of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, preferably at least 0.1, more preferably at least 0.3, even more preferably at least 0.5, still more preferably at least 1.0, and preferably at most 100, more preferably at most 50, even more preferably at most 20, still more preferably at most 10, and still more preferably at most 7. From the same viewpoints as above, the mass ratio [(A) / (G)] is preferably at least 0.1 and at most 100, more preferably at least 0.3 and at most 50, even more preferably at most 0.5 and at most 20, still more preferably at most 1.0 and at most 10, and still more preferably at most 7.

[0069] Furthermore, by using the above-described specific formulation, the cleaning composition of the present invention can be a transparent and stable cleaning composition even if it contains component (C), which generally tends to precipitate and become cloudy at low pH. That is, the cleaning composition of the present invention can be a cleaning composition that is stable not only near neutral but also in a low pH range on the more acidic side. Therefore, restrictions on production conditions and ingredients can be relaxed, and cleaning compositions with more diverse functions can be obtained.

[0070] The pH of the detergent composition of the present invention is preferably 3.0 or more, more preferably 3.2 or more, even more preferably 3.4 or more, and even more preferably 3.6 or more, from the viewpoint of imparting good properties such as low-temperature stability, foaming during washing, creamy foam, and smoothness during rinsing, and is preferably 7.0 or less, more preferably 6.5 or less, and even more preferably 6.3 or less. The pH of this detergent composition is the value at 25°C when diluted 20 times by mass with ion-exchanged water, assuming the pH when applied to hair or fibers for head accessories, and can be measured specifically by the method described in the Examples. The pH can be adjusted by blending the component (G) or other known pH adjusters to obtain the desired pH. To adjust the pH, component (G) may be used alone or in combination with two or more types. Furthermore, bases such as sodium hydroxide, potassium hydroxide, and ammonium chloride may be used in combination with component (G) as other pH adjusters.

[0071] The detergent composition of the present invention can be used as a detergent filled in a container or as a fabric detergent for headwear products, and can be made into any dosage form such as liquid, emulsion, cream, foam, etc.

[0072] (Method for producing detergent composition) The method for producing the detergent composition of the present invention is not particularly limited. For example, the detergent composition of the present invention can be produced by blending components (A) to (D) and other components used as needed by a known method, for example, a method described in the Examples, and mixing them using a known stirring device or the like. The detergent composition of the present invention can be in any form, such as a liquid, emulsion, cream, or foam.

[0073] In addition to the above-described embodiments, the present invention further discloses the following hair wash composition or fabric cleanser composition for head accessories. [1] A hair wash composition or fabric cleanser composition for head accessories, comprising the following components (A) to (D): (A) an alkyl glucoside, (B) a sulfonic acid-based anionic surfactant containing an acyltaurine salt, (C) an alkyl ether carboxylic acid or a salt thereof, and (D) an amphoteric surfactant, wherein the content of component (A) is 2.0% by mass or more, and the content of the acyltaurine salt in component (B) is 25% by mass or more. [2] The hair wash composition or fabric cleanser composition for head accessories according to [1], wherein the content of component (A) is 2.0% by mass or more and 20% by mass or less. [3] The hair wash composition or fabric cleanser composition for head accessories according to [1] or [2], wherein the content of component (B) is 0.1% by mass or more and 15% by mass or less. [4] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [3], wherein the content of component (B) is 5% by mass or more and 6% by mass or less. [5] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [4], wherein the content of component (C) is 0.1% by mass or more and 15% by mass or less. [6] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [5], wherein the content of component (D) is 0.1% by mass or more and 15% by mass or less. [7] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [6], wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.1 or more and 20 or less. [8] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [7], wherein the mass ratio of component (A) to component (C) [(A) / (C)] is from 0.1 to 10. [9] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [8], wherein the mass ratio of component (A) to component (D) [(A) / (D)] is from 0.01 to 10.

[10] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to [9], further comprising an anionic surfactant other than component (B) and component (C) as component (E).

[11] The hair wash composition or the fabric cleanser composition for head accessories according to

[10] , wherein the content of component (E) is from 0.1% by mass to 10% by mass.

[12] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[11] , further comprising a cationic polymer as component (F).

[13] The hair wash composition or the fabric cleanser composition for head accessories according to

[12] , wherein the content of component (F) is from 0.01% by mass to 5.0% by mass.

[14] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[13] , further comprising a nonionic surfactant other than component (A) as component (A').

[15] The hair wash composition or the fabric cleanser composition for head accessories according to

[14] , wherein the content of component (A') is from 0.5% by mass to 10% by mass.

[16] The hair wash composition or the fabric cleanser composition for head accessories according to

[14] or

[15] , wherein the content of component (A) relative to the total content of component (A) and component (A') is 30% by mass or more and 100% by mass or less.

[17] The hair wash composition or the fabric cleanser composition for head accessories according to any one of

[14] to

[16] , which contains (A") a polyoxyalkylene alkyl ether as component (A').

[18] The hair wash composition or the fabric cleanser composition for head accessories according to

[17] , wherein the content of component (A") is 0.3% by mass or more and 4.0% by mass or less.

[19] The hair wash composition or the fabric cleanser composition for head accessories according to

[17] or

[18] , wherein the content of component (A) relative to the total content of component (A) and component (A").

[20] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[19] , wherein the component (A) contains an alkyl glucoside having a linear or branched alkyl group having from 8 to 22 carbon atoms.

[21] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[20] , wherein the component (C) contains an alkyl ether carboxylic acid or a salt thereof having an average number of moles of oxyethylene groups added of from 0 to 20.

[22] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[21] , wherein component (C) contains an alkyl ether carboxylic acid having a linear or branched alkyl group having from 8 to 18 carbon atoms or a salt thereof.

[23] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[22] , wherein component (D) contains a betaine surfactant.

[24] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[23] , further containing component (G) an organic acid or a salt thereof.

[25] The hair wash composition or the fabric cleanser composition for head accessories according to

[24] , wherein component (G) is one or more selected from the group consisting of lactic acid, malic acid, succinic acid, citric acid, toluenesulfonic acid, and salts thereof.

[26] The hair wash composition or the fabric cleanser composition for head accessories according to

[24] or

[25] , wherein the content of component (G) is 0.01% by mass or more and 10% by mass or less.

[27] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[26] , wherein the content of acyltaurine salt in component (B) is 50% by mass or more.

[28] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[27] , wherein the content of acylisethionic acid or a salt thereof in component (B) is 20% by mass or less.

[29] The hair wash composition or the fabric cleanser composition for head accessories according to any one of [1] to

[28] , wherein the content of acylisethionic acid or a salt thereof in component (B) is 10% by mass or less.

[0074] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of the examples.

[0075] [Examples 1 to 46, Comparative Examples 1 to 8] (Preparation and Evaluation of Cleaning Compositions) Cleaning compositions of each example were prepared according to the formulations shown in Tables 1 to 6. Sodium hydroxide (caustic soda) was added as a pH adjuster to adjust the pH to the values ​​shown in Tables 1 to 5, thereby obtaining cleaning compositions. The pH was measured by using an aqueous dispersion prepared by diluting the cleaning composition with purified water to 5% (diluted 20 times by mass) and measuring the pH value at 25°C with a pH meter (HM-42X, manufactured by DKK-TOA Corporation).

[0076] The resulting cleanser compositions of each example were evaluated for appearance, foaming during cleansing, creaminess of the foam during cleansing, and smoothness during rinsing using the methods described below. The results are also shown in Tables 1 to 6. The blending amount (% by mass) of each component shown in the tables is the amount of active ingredient.

[0077] <Appearance immediately after preparation (appearance at room temperature)> About 100 mL of the cleaning composition obtained in each example was filled into a 110 mL transparent glass bottle, sealed, and the appearance at room temperature (25°C) was visually observed and evaluated according to the following four-level evaluation criteria. A reference diagram for these evaluation criteria is shown in Figure 1. [Evaluation criteria] A: Transparent B: Slightly cloudy but almost transparent C: Cloudy D: Cloudy, or precipitation, separation, or sedimentation is observed

[0078] <Low temperature stability (appearance at -5°C)> Approximately 100 mL of the detergent composition obtained in each example was filled into a 110 mL transparent glass bottle, which was then sealed and left to stand in a low-temperature, constant-humidity chamber at -5°C for 3 days. The appearance was visually observed and evaluated according to the following four-level evaluation criteria. [Evaluation criteria] A: Transparent B: Slightly cloudy but almost transparent C: Cloudy D: Cloudy, or precipitation, separation, or sedimentation was observed

[0079] <Lathering during washing> A Japanese woman's hair bundle, 30 cm long, 6 cm wide, and weighing 25 g, was thoroughly rinsed with warm water at 40°C, and then 1.0 g of the cleanser composition of each example was evenly applied to the hair, and the hairs were gently rubbed together for about 30 seconds to create a lather. The quality of lathering was evaluated by three expert panelists using the following five-point scale (the evaluation criteria were: Example 10 was rated as "5", Comparative Example 3 was rated as "1", and the intermediate score was rated as "3"). The evaluation values ​​shown in Tables 1 to 6 are the average values ​​of the three expert panelists. [Evaluation criteria] 5: Good lathering 4: Fairly good lathering 3: Neither good nor bad 2: Fairly poor lathering 1: Poor lathering

[0080] <Creamyness of foam during washing> A Japanese female hair bundle, 30 cm long, 6 cm wide, and weighing 25 g, was thoroughly rinsed with warm water at 40°C, and then 1.0 g of the cleanser composition of each example was evenly applied to the hair, and the hairs were gently rubbed together for about 30 seconds to create a lather. The creaminess of the lather was evaluated by a panel of three experts using the following five-point scale (the evaluation criteria were: Example 10 was rated as "5", Comparative Example 3 as "1", and the intermediate score was rated as "3"). The evaluation values ​​shown in Tables 1 to 6 are the average values ​​of the three experts. [Evaluation criteria] 5: Creamy foam 4: Slightly creamy foam 3: Neither creamy nor creamy 2: Not very creamy foam 1: Not creamy foam

[0081] <Smoothness during rinsing> A Japanese female hair bundle measuring 30 cm in length, 6 cm in width, and weighing 25 g was thoroughly rinsed with warm water at 40°C, and then 1.0 g of the cleanser composition of each example was evenly applied to the hair, and the hair was gently rubbed together for about 30 seconds to create a lather. Thereafter, while rinsing with warm water at 40°C, the smoothness of the hair during rinsing was evaluated by three expert panelists using the following five-point scale (the evaluation criteria were "5" for Example 10, "1" for Comparative Example 3, and "3" as the intermediate score). The evaluation values ​​shown in Tables 1 to 6 are the average values ​​of the three expert panelists. [Evaluation criteria] 5: Little squeaking, smooth feel 4: Slightly little squeaking 3: Neither squeak nor squeak 2: Slightly squeaky 1: Very squeaky, not smooth feel

[0082]

[0083]

[0084]

[0085]

[0086]

[0087]

[0088] The ingredients listed in the table are as follows. *1: Lauryl glucoside, "Mydol-12" manufactured by Kao Corporation *2: Cocoyl methyl taurate sodium, "Diapon K-SF" manufactured by NOF Corporation *3: Laureth-4 carboxylate sodium (polyoxyethylene lauryl ether sodium acetate), "Akipo LM-26SD" manufactured by Kao Corporation (average number of moles added of formula (II) q: 2.6) *4: Laureth-11 carboxylate sodium (polyoxyethylene lauryl ether sodium acetate), "Kao Akipo RLM-100NV" manufactured by Kao Corporation (average number of moles added q = 10) *5: Lauramidopropyl betaine, "Amphitol 20AB" manufactured by Kao Corporation *6: Cocoamphoacetate sodium, "Amphitol 20Y-B" manufactured by Kao Corporation *7: Cocoyl glutamate sodium, "Amisoft CS-22BE" manufactured by Ajinomoto Co., Inc. * 8: PEG-160 sorbitan triisostearate: "Rheodol TW-IS399C" manufactured by Kao Corporation * 9: PEG-7 glyceryl coconut oil fatty acid: "Cetiol HE-JP" manufactured by BASF Japan Ltd. * 10: PPG-2 cocamide: "Amizet 1PC" manufactured by Kawaken Fine Chemical Co., Ltd. * 11: Cocamide methyl MEA: "Amino-one C-11S" manufactured by Kao Corporation * 12: Cocamide MEA: "Amizol CME" manufactured by Kawaken Fine Chemical Co., Ltd. * 13: Isodecyl glyceryl ether: "Penetol GE-ID" manufactured by Kao Corporation * 14: Laureth-16: "Emulgen 116" manufactured by Kao Corporation * 15: Laureth-4 carboxylic acid: "AKYPO" manufactured by Kao chemical GmbH LM-26C" * 16: Laureth-11 carboxylic acid: Kao Corporation "Kao Akipo RLM-100" * 17: Lauramidopropyl betaine: NOF Corporation "Nissan Anon BDL-SF" * 18: Polyquaternium-10: Kao Corporation "Poise C-80M" * 19: Polyquaternium-39: Lubrizol Advanced Materials,*20: Polyquaternium-52: "SOFCARE KG101W-E" manufactured by Kao Corporation *21: Sodium cocoamphoacetate: "Softazoline CL-R" manufactured by Kawaken Fine Chemicals Co., Ltd. *22: Malic acid: "Liquid malic acid (50%)" manufactured by Fuso Chemical Co., Ltd. *23: Citric acid: "Citric acid (50%)" manufactured by Showa Kako Co., Ltd. *24: Lactic acid: "Musashino Lactic Acid 90" manufactured by Musashino Scientific Research Institute Co., Ltd. *25: Succinic acid: "Succinic acid" manufactured by Nippon Shokubai Co., Ltd. *26: Toluenesulfonic acid: "PTS 70% solution" manufactured by Konan Kako Co., Ltd. *27: Decyl glucoside: "Mydol-10" manufactured by Kao Corporation * 28: Cocoyl isethionate Na: "JORDAPON CI LA" manufactured by BASF Japan Ltd. * 29: Cocamidopropyl betaine: "Amphitol 55AB" manufactured by Kao Corporation * 30: Lauryl betaine: "Amphitol 20BS" manufactured by Kao Corporation * 31: Polyquaternium-7: "MERQUAT 550 POLYMER" manufactured by Lubrizol Advanced Materials, Inc.

[0089] Tables 1 to 6 show that the detergent compositions of these Examples, by blending the specified components in the specified amounts, have excellent low-temperature stability, even when containing a carboxylic acid surfactant, and are excellent in terms of foaming during cleaning, creaminess of the foam, and smoothness during rinsing. Furthermore, as shown in Examples 18 to 20 and 29 to 44, it was also found that good stability can be maintained even at low pH. In contrast, the detergent compositions of Comparative Examples 1 and 2, which did not contain component (A) or contained component (A) in an amount less than the specified amount, and Comparative Example 3, which did not contain component (B), exhibited poor low-temperature stability. The detergent composition of Comparative Example 4, which did not contain component (C), had no problems with low-temperature stability, but showed insufficient foaming during cleaning, creaminess of the foam, and smoothness during rinsing. The detergent composition of Comparative Example 5, which did not contain component (D), had improved low-temperature stability, but showed insufficient foaming during cleaning, creaminess of the foam, and smoothness during rinsing. Furthermore, the detergent composition of Comparative Example 6, which contained component (E) but not component (B), showed improved low-temperature stability and foaming during washing, but the creaminess of the foam and the smoothness during rinsing were both insufficient.Furthermore, the detergent compositions of Comparative Examples 7 and 8, in which the content of acyltaurine salt in component (B) was less than 25% by mass, all showed poor low-temperature stability.

Claims

1. A hair cleanser composition or a fabric cleanser composition for head accessories, comprising the following components (A) to (D): (A) an alkyl glucoside, (B) a sulfonic acid-based anionic surfactant containing an acyltaurine salt, (C) an alkyl ether carboxylic acid or a salt thereof, and (D) an amphoteric surfactant, wherein the content of component (A) is 2.0% by mass or more, and the content of the acyltaurine salt in component (B) is 25% by mass or more.

2. A hair cleanser composition or a fabric cleanser composition for head accessories according to claim 1, wherein the content of component (A) is 2.0% by mass or more and 20% by mass or less.

3. A hair cleanser composition or a fiber cleanser composition for head accessories according to claim 1 or 2, wherein the content of component (B) is 0.1% by mass or more and 15% by mass or less.

4. A hair wash composition or a fabric wash composition for head accessories according to any one of claims 1 to 3, wherein the content of component (C) is 0.1% by mass or more and 15% by mass or less.

5. A hair wash composition or a fabric wash composition for head accessories according to any one of claims 1 to 4, wherein the content of component (D) is 0.1% by mass or more and 15% by mass or less.

6. A hair wash composition or a fabric wash composition for head accessories according to any one of claims 1 to 5, wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.1 or more and 20 or less.

7. A hair wash composition or a fabric wash composition for head accessories according to any one of claims 1 to 6, wherein the mass ratio of component (A) to component (C) [(A) / (C)] is 0.1 or more and 10 or less.

8. A hair cleanser composition or a fabric cleanser composition for head accessories according to any one of claims 1 to 7, further comprising component (G) an organic acid or a salt thereof.

9. A hair cleanser composition or a fabric cleanser composition for head accessories according to claim 8, wherein component (G) is at least one selected from the group consisting of lactic acid, malic acid, succinic acid, citric acid, toluenesulfonic acid, and salts thereof.

10. A hair cleanser composition or a fabric cleanser composition for head accessories according to claim 8 or 9, wherein the content of component (G) is 0.01% by mass or more and 10% by mass or less.

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