Hair shampoo composition

Abstract

To provide a hair shampoo composition that has excellent foaming, can easily wash even wavy hair, and gives good hair manageability.SOLUTION: Provided is a hair shampoo composition that contains components (A) polypeptide-type surfactant expressed by general formula (1) and (B) saccharide, where saccharide of the component (B) may be sugar alcohol, polypeptide which is a basic structure of polypeptide-type surfactant of the component (A) may be hydrolyzed protein, and a content mass ratio [(A) / (B)] of the component (A) for the component (B) may be 0.06 to 20. Also provided is a hair shampoo composition containing components (A) polypeptide-type surfactant and (C) α-olefin sulfonate.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair wash composition. More specifically, the present invention relates to a hair wash composition that foams well, is easy to wash even for curly hair, and provides good manageability. [Background technology]

[0002] In recent years, polypeptide surfactants (PPT surfactants) have been attracting attention as surfactants for use in shampoo compositions because they have a stronger hair repair effect than amino acid surfactants. Polypeptide surfactants, for example, surfactants derived from hydrolyzed proteins (hydrolyzed proteins) such as keratin, are used. Protein hydrolyzed surfactants are highly regarded for their excellent penetration into hair, their high treatment effect, and the fact that they are naturally derived ingredients that also improve the product's image.

[0003] Patent Document 1 discloses a cleansing composition containing an acylated hydrolyzed protein and a fragrance composition to be applied to the skin or hair after using the cleansing composition, in order to leave a strong, long-lasting fragrance on the hair or skin.

[0004] Patent Document 2 discloses a shampoo composition that has excellent foaming properties, hair feel, and transparency stability of the formulation, by blending one or more polypeptide surfactants with a di- or tricarboxylic acid ester and / or a cationic copolymer with a specific structure in a specific ratio. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2022-117518 [Patent Document 2] Japanese Patent Publication No. 2021-143156 Summary of the Invention [Problem to be solved by the invention]

[0006] However, shampoos containing conventional polypeptide surfactants do not have sufficient foaming or foam retention, and when used on curly hair in particular, they have the problem of being prone to tangling and difficult to manage during washing and after rinsing.

[0007] Therefore, an object of the present invention is to provide a hair wash composition that foams well, is easy to wash even curly hair, and leaves hair well-mannered. [Means for solving the problem]

[0008] As a result of intensive research to solve the above problems, the present inventors have found that by incorporating a sugar such as a sugar alcohol into a polypeptide surfactant, good lathering is achieved, the hair feels smooth to the touch during washing, making it easy to wash even curly hair, and the hair is well-manageable, resulting in a bouncy and refreshing finish. Furthermore, they have found that by incorporating an α-olefin sulfonate into a polypeptide surfactant, good lathering is achieved, the hair feels smooth to the touch during washing, making it easy to wash even curly hair, and the hair is well-manageable.

[0009] The present invention provides a hair wash composition containing the following components (A) and (B): (A) A polypeptide surfactant represented by the following general formula (1): (B) Sugar [ka] [In general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X + represents a hydrogen atom or a counter ion.]

[0010] The present invention also provides a hair wash composition in which the sugar of component (B) is a sugar alcohol.

[0011] The present invention also provides a hair wash composition in which the polypeptide, which is the basic structure of the polypeptide surfactant of component (A), is a hydrolyzed protein.

[0012] The present invention also provides a hair wash composition in which the mass ratio of component (A) to component (B) [(A) / (B)] is 0.06 to 20.

[0013] The present invention also provides a hair wash composition containing the following components (A) and (C): (A) A polypeptide surfactant represented by the following general formula (1): (C) α-olefin sulfonate [ka] [In general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X + represents a hydrogen atom or a counter ion.]

[0014] The present invention also provides a hair wash composition in which the mass ratio of component (A) to component (C) [(A) / (C)] is 0.025 to 6. [Effects of the Invention]

[0015] The hair wash composition of the present invention, which is obtained by blending a sugar with a polypeptide surfactant, has good foaming properties and a smooth feel when running fingers through it during washing, making it easy to wash even curly hair, and it also provides good manageability and a bouncy, refreshing finish. Furthermore, the hair wash composition of the present invention, which is obtained by blending an α-olefin sulfonate with the hair wash composition, has good foaming properties and a smooth feel when running fingers through it during washing, making it easy to wash even curly hair, and it also provides good manageability. DETAILED DESCRIPTION OF THE INVENTION

[0016] The hair wash composition of the present invention contains component (A) a polypeptide surfactant represented by general formula (1) and component (B) a sugar.

[0017] By blending component (B) with component (A), the hair wash composition of the present invention has good foaming properties and a smooth feel when washing, making it easy to wash even curly hair, and it also provides good manageability and a bouncy, refreshing finish.

[0018] [(A) Polypeptide surfactant] Polypeptide surfactants are classified as anionic surfactants and are compounds represented by the following general formula (1), whose basic structure contains a polypeptide in which two or more amino acids are peptide-bonded. They have mild foaming and cleansing power, but have excellent penetration into hair and a strong treatment effect that provides protection, moisturization, and softness. In addition to their effectiveness as cleansing ingredients that wash away dirt and excess oil, they are also expected to improve the combability and freshness of hair both during and after rinsing, as well as improve manageability.

[0019] [ka] [In general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X + represents a hydrogen atom or a counter ion.]

[0020] In the above general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X + represents a hydrogen atom or a counter ion.

[0021] The lipophilic group R of the polypeptide surfactant represented by general formula (1) 1The number of carbon atoms is not particularly limited, but is preferably 7 to 21, and more preferably 11 to 17. The average repeat number n is also not particularly limited, but is preferably 2 to 50. The upper limit of n is preferably 20 or less, and more preferably 10 or less. When n is smaller, the effect of the present invention, namely good foaming, is more effectively exhibited.

[0022] The polypeptide surfactant represented by general formula (1) can be obtained by N-acylation of the amino group of a polypeptide with a carboxylic acid. The polypeptide surfactant represented by general formula (1) can be obtained using one or two or more types of polypeptides. Two or more types of polypeptides can be obtained as protein hydrolysates. Furthermore, the polypeptide surfactant represented by general formula (1) can be obtained using one or two or more types of carboxylic acids. Two or more types of carboxylic acids can be obtained as hydrolysates of vegetable oils or animal oils.

[0023] The amino acid side chain R of the polypeptide surfactant represented by general formula (1) 2 is determined by the amino acids that constitute the basic structure of the polypeptide surfactant. Examples of amino acids include basic amino acids such as alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine, as well as non-standard amino acids such as selenocysteine, pyrrolysine, pyroglutamic acid, cystine, hydroxyproline, hydroxylysine, thyroxine, O-phosphoserine, desmosine, ornithine, and citrulline.

[0024] In each repeating unit of the polypeptide surfactant represented by general formula (1), R 2each independently represents any amino acid side chain. The hair wash composition of the present invention contains at least one type of molecular structure of the polypeptide surfactant represented by general formula (1), and may contain two or more types. For example, when the polypeptide surfactant represented by general formula (1) is derived from a protein hydrolysate, R 2 The surfactant contains a total of three or more types of polypeptide surfactants.

[0025] The types of amino acids that constitute the basic structure of the polypeptide surfactant represented by general formula (1) are not particularly limited, but preferably include, for example, glycine, alanine, serine, and valine.

[0026] The polypeptide, which is the basic structure of a polypeptide surfactant, is not particularly limited, but can be a hydrolysate of a naturally occurring protein (hereinafter referred to as "hydrolyzed protein").

[0027] Examples of hydrolyzed proteins include hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed soybean protein, hydrolyzed rice protein, hydrolyzed casein, hydrolyzed wheat protein, hydrolyzed pea protein, hydrolyzed sesame protein, and hydrolyzed conchiolin, etc. The hydrolyzed protein is preferably hydrolyzed keratin or hydrolyzed silk.

[0028] Examples of carboxylic acids constituting the lipophilic group of the polypeptide surfactant represented by general formula (1) include saturated fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, and behenic acid, and unsaturated fatty acids such as oleic acid. Preferred carboxylic acids include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, coconut oil fatty acid, and palm kernel oil fatty acid. From the viewpoint of natural origin, preferred carboxylic acids include coconut oil fatty acid and palm kernel oil fatty acid obtained from coconut oil and palm oil.

[0029] Counter ions constituting the salt include alkali metal ions such as sodium and potassium, alkaline earth metal ions such as magnesium, ammonium ions, and alkanolamine bases such as monoethanolamine, diethanolamine, and triethanolamine.

[0030] The polypeptide surfactant is not particularly limited, and may be, for example, an acylated hydrolyzed protein, a cationized hydrolyzed protein, a silylated hydrolyzed protein, an ethyl-esterified hydrolyzed protein, etc. The polypeptide surfactant is preferably an acylated hydrolyzed protein, more preferably an acylated hydrolyzed keratin or acylated hydrolyzed silk.

[0031] The acylated hydrolyzed protein is preferably a cocoyl hydrolyzed protein or a lauroyl hydrolyzed protein, more preferably a cocoyl hydrolyzed keratin or a lauroyl hydrolyzed silk.

[0032] Specific examples of raw materials containing polypeptide surfactants include potassium cocoyl hydrolyzed collagen ("Promois ECP" manufactured by Seiwa Kasei Co., Ltd.), potassium cocoyl hydrolyzed soy protein ("Promois ESCP" manufactured by Seiwa Kasei Co., Ltd.), sodium lauroyl hydrolyzed silk ("Promois EFLS" manufactured by Seiwa Kasei Co., Ltd.), and potassium cocoyl hydrolyzed keratin ("Promois EKCP" manufactured by Seiwa Kasei Co., Ltd.).

[0033] The polypeptide surfactant may be one of the above compounds or a combination of two or more thereof. The polypeptide surfactant is preferably sodium cocoyl hydrolyzed keratin, potassium cocoyl hydrolyzed keratin, or sodium lauroyl hydrolyzed silk.

[0034] The lower limit of the content of component (A) in the hair wash composition of the present invention is preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 3% by mass or more. The upper limit of the content of component (A) is preferably 11% by mass or less, more preferably 10% by mass or less, and even more preferably 8% by mass or less.

[0035] [(B) Sugar] Sugars include sugars and sugar alcohols.

[0036] Sugars include monosaccharides such as glucose and fructose, disaccharides such as sucrose, maltose and trehalose, trisaccharides such as raffinose, mucopolysaccharides such as hyaluronic acid, sodium hyaluronate and acetylated hyaluronic acid, etc. Furthermore, sugars may be substances containing one or more types of sugars, such as honey.

[0037] Sugar alcohols include monosaccharide alcohols and disaccharide alcohols. Monosaccharide alcohols are compounds in which the carbonyl group of a monosaccharide (such as an aldose or ketose) is reduced to a hydroxyl group. Examples of monosaccharide alcohols include sorbitol, mannitol, xylitol, and erythritol.

[0038] Disaccharide alcohols are compounds in which the carbonyl group of a disaccharide is reduced to a hydroxyl group. Examples of disaccharide alcohols include lactitol and maltitol.

[0039] Sugar alcohols also include derivatives of monosaccharide alcohols and disaccharide alcohols. These derivatives refer to sugar alcohols with structural changes, specifically compounds in which at least one of the substituents (e.g., hydroxyl groups) of the sugar alcohol has been replaced with another substituent. Examples of the other substituents include hydrogen atoms, halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, aryl groups, amino groups, and cyano groups.

[0040] Sugar alcohols also include salts of sugar alcohols. Examples of cations that constitute salts include alkali metal ions such as sodium, potassium, and lithium, as well as ammonium ions.

[0041] As the sugar component (B), one of the above-mentioned compounds may be used alone or in combination of two or more. The sugar is preferably a sugar alcohol, more preferably a monosaccharide alcohol, and most preferably sorbitol or xylitol.

[0042] The lower limit of the content of component (B) in the hair wash composition of the present invention is preferably 0.3% by mass or more, more preferably 0.7% by mass or more, and the upper limit of the content of component (B) is preferably 10% by mass or less, more preferably 7% by mass or less, and even more preferably 3.5% by mass or less.

[0043] In the hair wash composition of the present invention, the lower limit of the mass ratio of component (A) to component (B) [(A) / (B)] is preferably at least 0.06, more preferably at least 0.25, and even more preferably at least 2. The upper limit of [(A) / (B)] is preferably at most 20, more preferably at most 5.5, and even more preferably at most 4.

[0044] The hair wash composition of the present invention may further contain component (C) an α-olefin sulfonate.

[0045] The present invention also provides a hair wash composition containing component (A) a polypeptide surfactant and component (C) an α-olefin sulfonate.

[0046] By incorporating component (C), the hair wash composition of the present invention can achieve the effects of better foaming and smooth finger-combing during washing, making it easy to wash even curly hair and keeping it manageable.

[0047] [(C) α-olefin sulfonate] Alpha-olefin sulfonates are compounds classified as anionic surfactants.

[0048] The α-olefin sulfonate includes, for example, an α-olefin sulfonate having an average of 8 to 22 carbon atoms, preferably an average of 10 to 20 carbon atoms, more preferably an average of 12 to 18 carbon atoms, and even more preferably an average of 12 to 16 carbon atoms per molecule.

[0049] Examples of salt forms of the α-olefin sulfonate include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium and calcium, ammonium salts, amine salts, and acid addition salts such as hydrochloride.

[0050] The α-olefin sulfonate may be one of the above-mentioned compounds, or two or more of them may be used in combination. The α-olefin sulfonate is preferably an olefin sulfonate having an average carbon number of 12 to 14 or an olefin sulfonate having an average carbon number of 14 to 16, and more preferably sodium olefin sulfonate having an average carbon number of 12 to 14.

[0051] The lower limit of the content of component (C) in the hair wash composition of the present invention is preferably 1% by mass or more, more preferably 2% by mass or more, and the upper limit of the content of component (C) is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5.5% by mass or less.

[0052] In the hair wash composition of the present invention, the lower limit of the mass ratio of component (A) to component (C) [(A) / (C)] is preferably at least 0.025, more preferably at least 0.6, and even more preferably at least 1. The upper limit of [(A) / (C)] is preferably at most 6, and more preferably at most 2.5.

[0053] [Other ingredients] The hair wash composition of the present invention may contain other components commonly used in the art, as necessary, to the extent that the effects of the present invention are not impaired. Such components include oily components, solvents, surfactants other than those mentioned above, polymeric compounds, acid dyes, hair coloring materials, preservatives, chelating agents, herbal extracts, vitamins, fragrances, antioxidants, UV absorbers, pH adjusters, and inorganic salts.

[0054] Examples of oily components include fats and oils, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters, and silicones. Specific examples of fats and oils include olive oil, camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, and evening primrose oil. Specific examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin.

[0055] Examples of the solvent include water and organic solvents, such as alcohols such as ethanol, isopropanol, benzyl alcohol, and benzyloxyethanol, glycols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol, and glycerins such as glycerin, diglycerin, and polyglycerin.

[0056] Surfactants other than those listed above may be blended not only as cleansing components but also as solubilizers, viscosity adjusters, and viscosity stabilizers for the various components. Examples of other surfactants include anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants other than those listed above.

[0057] Examples of anionic surfactants include salts of amino acid analogs having saturated or unsaturated acyl groups, sulfonic acid-based, ethercarboxylic acid-based, and phosphoric acid-based anionic surfactants. Specific examples include 2-aminoethanesulfonic acid (taurine), N-methyltaurine, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, alkyl (C6-24) ether carboxylic acids, hydroxyalkyl (C6-24) ether carboxylic acids, polyoxyalkylenated alkyl (C6-24) ether carboxylic acids, polyoxyalkylenated alkyl (C6-24) aryl ether carboxylic acids, polyoxyalkylenated alkyl (C6-24) amide ether carboxylic acids, and alkali metal salts thereof (e.g., sodium salt, potassium salt, etc.), organic amine salts (e.g., monoethanolamine salt, diethanolamine salt, triethanolamine salt, monoisopropanolamine salt, etc.), and POE lauryl ether phosphate and its salts.

[0058] Examples of types of nonionic surfactants include ether-type nonionic surfactants, ester-type nonionic surfactants, and alkyl polyglucosides. Specific examples of ether-type surfactants include POE cetostearyl hydroxymyristyrene ether such as ceteareth-60 myristyl glycol, POE cetyl ether (ceteth), POE stearyl ether (steareth), POE behenyl ether, POE oleyl ether (oleth), POE lauryl ether (laureth), POE octyldodecyl ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, (lauryl / myristyl) glycol hydroxypropyl ether, POE cetylstearyl diether, POE polyoxypropylene cetyl ether, and POE polyoxypropylene decyltetradecyl ether.

[0059] Specific examples of the ester type include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate such as PEG-80 sorbitan laurate, POE sorbitan trioleate, POE glycerin monostearate, POE glycerin monomyristate, POE sorbit tetraoleate, POE sorbit hexastearate, POE sorbit monolaurate, POE coconut oil fatty acid glycerin such as PEG-7 glyceryl coconut oil fatty acid, POE sorbit beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol distearate such as PEG-150 distearate, and polyethylene glycol monolaurate. Examples of suitable glyceryl monostearate include choline, lipophilic glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, POE sorbitan monoisostearate such as PEG-20 sorbitan isostearate, sucrose fatty acid esters, decaglyceryl monolaurate (polyglyceryl-10 laurate), polyglyceryl monolaurate (polyglyceryl-6 laurate), decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate (polyglyceryl-10 myristate), and POE reduced lanolin.

[0060] Specific examples of alkyl polyglucosides include alkyl (having 8 to 16 carbon atoms) glucoside, POE methyl glucoside, and POE dioleate methyl glucoside.

[0061] The hair wash composition of the present invention preferably further contains a nonionic surfactant. The inclusion of a nonionic surfactant provides the effects of better foaming and less tangling of curly hair. The nonionic surfactant may be one of the above-mentioned compounds, or a combination of two or more of them. The nonionic surfactant is preferably a polyglycerin fatty acid ester, more preferably decaglyceryl monolaurate, polyglyceryl monolaurate, or decaglyceryl monomyristate.

[0062] The lower limit of the content of the nonionic surfactant in the hair wash composition of the present invention is preferably 0.5% by mass or more, more preferably 1% by mass or more, and the upper limit of the content of the nonionic surfactant is preferably 10% by mass or less, more preferably 5% by mass or less.

[0063] Examples of amphoteric surfactants include betaine-type amphoteric surfactants such as lauramidopropyl betaine, lauryl dimethyl betaine, lauric acid amidopropyl betaine, 2-undecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine sodium, cocoamidopropyl betaine, lauryl dimethylaminoacetic acid betaine, cocobetaine, and coconut oil fatty acid amidopropyl betaine, as well as sodium lauryl aminopropionate, sodium lauroamphoacetate, and sodium cocoamphoacetate.

[0064] The hair wash composition of the present invention preferably further contains an amphoteric surfactant. The amphoteric surfactant may be one of the above-mentioned compounds, or two or more of them may be used in combination. The amphoteric surfactant is preferably lauramidopropyl betaine, lauryl dimethyl betaine, sodium lauryl aminopropionate, or a combination thereof, more preferably lauramidopropyl betaine, lauryl dimethyl betaine, or a combination thereof.

[0065] The lower limit of the content (total content) of the amphoteric surfactants in the hair wash composition of the present invention is preferably 0.5% by mass or more, more preferably 3% by mass or more, and the upper limit of the content of the amphoteric surfactants is preferably 10% by mass or less, more preferably 8% by mass or less.

[0066] Examples of polymer compounds include nonionic polymers, anionic polymers, cationic polymers, and amphoteric polymers. Examples of nonionic polymers include hydroxyethyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, methyl cellulose, dextrin, galactan, pullulan, highly polymerized polyethylene glycol, polyvinyl alcohol, homopolymers and copolymers of vinylpyrrolidone, particularly polyvinylpyrrolidone alone, copolymers of vinylpyrrolidone and vinyl acetate, trade name "Ruviscol" (manufactured by BASF), and terpolymers of vinylpyrrolidone, vinyl acetate, and vinyl propionate.

[0067] Anionic polymers include xanthan gum, carrageenan, sodium alginate, gum arabic, pectin, and carboxyvinyl polymers.

[0068] Examples of cationic polymers include cellulose derivatives such as cationized cellulose, cationized guar gum, and cationized dextran, cationic polysaccharides obtained by cationizing polysaccharides such as natural gums, starch, and dextran, and cationic hydrolyzed proteins obtained by cationizing hydrolyzed proteins. Examples of cationic polymers that can be used include polyquaternium-10, polyquaternium-67, and polyquaternium-73.

[0069] The hair wash composition of the present invention preferably further contains a cationic polymer. The cationic polymer may be one of the above-mentioned compounds, or two or more of them may be used in combination. The cationic polymer is preferably Polyquaternium-10, Polyquaternium-67, or Polyquaternium-73, and most preferably Polyquaternium-10.

[0070] The lower limit of the content of the cationic polymer in the hair wash composition of the present invention is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and the upper limit of the content of the cationic polymer is preferably 5% by mass or less, more preferably 1% by mass or less.

[0071] Examples of amphoteric polymers include hydroxypropyl acrylate-butylaminoethyl methacrylate-octyl acrylate copolymers.

[0072] Preservatives include phenoxyethanol, parahydroxybenzoates, parabens, methylparaben, and sodium benzoate. Chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)) and its salts, diethylenetriaminepentaacetic acid and its salts, and hydroxyethanediphosphonic acid (etidronic acid, HEDP) and its salts.

[0073] The formulation of the hair wash composition of the present invention is not particularly limited, and may be in the form of an aqueous solution, dispersion, emulsion, gel, foam, cream, etc. The container into which the hair wash composition of the present invention is filled is not particularly limited, and may be a pump foamer container, a squeeze foamer container, etc. When the hair wash composition is in foam form, an aerosol container may be used.

[0074] The hair wash composition of the present invention may be applied to hair wet with water or hot water, or may be applied to dry hair, but is preferably applied to wet hair. The hair wash composition of the present invention is used for a cleansing treatment in which the composition is lathered in a conventional manner and then rinsed off with water or hot water.

[0075] The method for producing the hair wash composition of the present invention is not particularly limited, and any known conventional method can be used as appropriate. For example, the hair wash composition can be produced by blending the above-mentioned components, thoroughly stirring and mixing them while heating as necessary to dissolve or disperse the components, cooling the mixture to an appropriate temperature, and filling the mixture into a predetermined container.

[0076] The hair wash composition of the present invention can be used not only as a shampoo for washing human hair, but also as a detergent for washing the body hair of animals such as pets. [Example]

[0077] The hair wash composition of the present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to these examples and various modifications are possible within the scope of the technical concept of the present invention.

[0078] [Preparation of Examples and Comparative Examples] The components shown in Tables 1 to 3 were blended in the mass proportions shown in Tables 1 to 3 and thoroughly stirred to homogeneity in a conventional manner to prepare hair wash compositions of Examples 1 to 28 and Comparative Example 1.

[0079] [Evaluation of Examples and Comparative Examples] The hair wash compositions of the Examples and Comparative Examples were evaluated for "manageability," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair during washing" by the following methods. The results of these evaluations are shown in Tables 1 to 3.

[0080] (Collected) Ten panelists each used the hair wash compositions of Examples 1 to 28 and Comparative Example 1 on their hair in the usual way, and evaluated the "manageability" of the hair after use on a scale of "1" to "5" based on the following evaluation criteria. "5": Seven or more panelists answered that they felt it was cohesive "4": Six panelists answered that they felt it was cohesive. "3": Five panelists answered that they felt it was cohesive. "2": 2-4 panelists answered that they felt it was cohesive "1": 0 to 1 panelists answered that they felt it was cohesive

[0081] (elasticity) Ten panelists used each of the hair wash compositions of Examples 1 to 28 and Comparative Example 1 on their hair in the usual way, and evaluated the "elasticity" after use on a scale of "1" to "5" based on the following evaluation criteria. "5": Seven or more panelists answered that they felt elasticity "4": 6 panelists answered that they felt elasticity "3": Five panelists answered that they felt elasticity. "2": 2 to 4 panelists answered that they felt elasticity "1": 0 to 1 panelists answered that they felt elasticity

[0082] (Foaming) Ten panelists visually evaluated the amount of foaming of the hair wash compositions of Examples 1 to 28 and Comparative Example 1 according to the following criteria. Scoring was performed on a four-point scale: good (4 points) if the amount of foaming was high, fair (3 points) if the amount of foaming was somewhat high, slightly poor (2 points) if the amount of foaming was somewhat low, and poor (1 point) if the amount of foaming was low. The average of the scores from each panelist was calculated. The evaluation results were determined as follows: an average of 3.8 points or more was rated as "excellent: 5," 3.6 points or more but less than 3.8 points was rated as "good: 4," 2.6 points or more but less than 3.6 points was rated as "fair: 3," 1.6 points or more but less than 2.6 points was rated as "slightly poor: 2," and less than 1.6 points was rated as "poor: 1."

[0083] (Refreshing) Ten panelists each used the hair wash compositions of Examples 1 to 28 and Comparative Example 1 on their hair in the usual way, and evaluated the "refreshing feeling" after use on a scale of "1" to "5" based on the following evaluation criteria. "5": Seven or more panelists answered that they felt it was refreshing "4": 6 panelists answered that they felt it was refreshing "3": Five panelists answered that they felt it was refreshing "2": 2 to 4 panelists answered that they felt a refreshing sensation "1": 0 to 1 panelists answered that they felt a refreshing sensation

[0084] (Finger-smoothing when washing) Five panelists evaluated the feel of hair after rinsing the hair wash compositions of Examples 1 to 28 and Comparative Example 1 with water, using the following criteria. The ease of running fingers through the hair was scored on a four-point scale: good (4 points), fair (3 points), somewhat poor (2 points), and poor (1 point), and the average of the scores from each panelist was calculated. The evaluation results were determined as follows: an average of 3.8 points or more was scored as "excellent: 5," 3.6 points or more but less than 3.8 points was scored as "good: 4," 2.6 points or more but less than 3.6 points was scored as "fair: 3," 1.6 points or more but less than 2.6 points was scored as "somewhat poor: 2," and less than 1.6 points was scored as "poor: 1."

[0085] [Table 1]

[0086] [Table 2]

[0087] [Table 3]

[0088] The hair wash compositions of Examples 1 to 26 were rated as "3" or higher in all categories of "manageability," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair during washing," demonstrating favorable results.

[0089] The results of Examples 1 and 2 showed that when various components (A) were used, all of the following items were excellent: "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing."

[0090] The results of Examples 1 and 3 to 5 show that when various components (B) were used, the evaluations of "holding power," "elasticity," "lathering power," "refreshing feeling," and "smoothing power" were all good, with a rating of "3" or higher. In particular, when monosaccharide alcohols of sorbitol and xylitol were used, the evaluations of all the items of "holding power," "elasticity," "lathering power," "refreshing feeling," and "smoothing power" were excellent.

[0091] The results of Examples 1 and 6 showed that when various components (C) were used, the evaluations of all the items of "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing" were excellent.

[0092] From the results of Examples 1 and 7 to 12, when the content of component (A) was 0.1 to 11% by mass, the evaluations of all the categories of "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing" were "3" or higher, which were good results.

[0093] From the results of Examples 1 and 13 to 17, when the content of component (B) was 0.3 to 10% by mass, the evaluations of all the categories of "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing" were "3" or higher, which were good results.

[0094] From the results of Examples 1 and 18 to 21, when the content of component (C) was 1 to 10% by mass, the evaluations of all the categories of "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing" were "3" or higher, which were good results.

[0095] From the results of Examples 1 and 7 to 17, when the mass ratio of component (A) to component (B) [(A) / (B)] was 0.06 to 20, the evaluations of all the categories of "holding power," "elasticity," "lathering," "refreshing feeling," and "smoothing when washing" were "3" or higher, which were good results.

[0096] From the results of Examples 1, 7 to 12, and 18 to 21, when the mass ratio of component (A) to component (C) [(A) / (C)] was 0.025 to 6, the evaluations of all the categories of "holding power," "elasticity," "lathering," "refreshing feeling," and "smoothing when washing" were "3" or higher, which were good results.

[0097] The results of Examples 1, 22, and 23 show that even when various nonionic surfactants were used, the evaluations of all the items of "holding power," "elasticity," "lathering," "refreshing feeling," and "smoothing when washing" were "3" or higher, which were good results.

[0098] From the results of Examples 1 and 24, even when various amphoteric surfactants were used, the evaluations of all the items of "holding power," "elasticity," "lathering," "refreshing feeling," and "smoothing when washing" were "4" or higher, which were good results.

[0099] The results of Examples 1, 25, and 26 showed that even when various cationic polymers were used, all of the following characteristics were excellent: "holding power," "elasticity," "lathering," "refreshing feeling," and "ease of running fingers through hair when washing."

[0100] Example 27, which does not contain component (C) and contains an anionic surfactant other than component (A), was good in all categories, with excellent evaluations of "smoothness," "elasticity," and "refreshing feeling." Example 28, which does not contain component (B), was excellent in the categories of "smoothness," "lathering," and "ease of running fingers through hair during washing," demonstrating that the problem of the present invention can be fully solved.

[0101] On the other hand, Comparative Example 1, which did not contain component (A), received low ratings for "holdability," "refreshing feeling," and "easy to run fingers through when washing." [Industrial Applicability]

[0102] The hair wash composition of the present invention can be suitably used in shampoos and the like for washing hair.

Claims

1. A hair cleansing composition comprising the following components (A) and (B): (A) A polypeptide surfactant represented by the following general formula (1): (B) Sugar 【Chemistry 1】 [In general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X ＋ represents a hydrogen atom or a counter ion.

2. 2. The hair wash composition according to claim 1, wherein the sugar of component (B) is a sugar alcohol.

3. 3. The hair wash composition according to claim 1, wherein the polypeptide, which is the basic structure of the polypeptide surfactant of component (A), is a hydrolyzed protein.

4. 3. The hair wash composition according to claim 1, wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.06 to 20.

5. A hair cleansing composition comprising the following components (A) and (C): (A) A polypeptide surfactant represented by the following general formula (1): (C) α-olefin sulfonate 【Chemistry 2】 [In general formula (1), R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms, and R 2 represents an independent amino acid side chain in the repeating structure, n is an integer of 2 or more, and X ＋ represents a hydrogen atom or a counter ion.

6. 6. The hair wash composition according to claim 5, wherein the mass ratio of component (A) to component (C) [(A) / (C)] is 0.025 to 6.

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