JP7440885B2 - shampoo composition - Google Patents

Description

The present invention relates to shampoo compositions containing specific cationic polymers and specific surfactants, and substantially free of sulfate-loaded anionic surfactants.

Generally, shampoo compositions containing a cationized polymer and an oily component to improve the texture are known. For example, a shampoo composition disclosed in Patent Document 1 has been known. Patent Document 1 discloses a shampoo composition containing an ionic surfactant, cationized cellulose, polymer silicone, etc. as a cationized polymer.

Japanese Patent Application Publication No. 2009-120559

However, cationic polymers tend to become cloudy when the content is increased, and when making the appearance of a formulation transparent to improve aesthetics, it is necessary to incorporate a predetermined amount of cationic polymer to improve the stability of transparent formulations at low and room temperatures. It was difficult to do so. In addition, the stability of a transparent preparation here refers to maintenance of the transparent state of a preparation. Furthermore, even if it is possible to improve the stability of transparent formulations by selecting the type of surfactant, for example, it is difficult to improve the stability of transparent formulations while maintaining the feel and foam quality effects of cationized polymers. It was extremely difficult to achieve a balance between formulation stability, texture, and foam quality. In addition, oily components have a weaker feel-improving effect than cationized polymers and tend to become cloudy when used in combination with surfactants, so it has been difficult to improve the feel while making the appearance of the formulation transparent.

The problem to be solved by the present invention is to provide a shampoo composition that can achieve both transparent formulation stability, feel, and foam quality.

The present invention improves the stability, feel, and foam quality of transparent formulations by using in combination a specific cationized polymer, triethanolamine salt of an amino acid type surfactant, and PEG-7 glyceryl coconut oil fatty acid in a shampoo composition. This is based on the discovery that both can be achieved. In addition, when a solubilizing agent such as water is used, the numerical value of mass % indicating the content of a component is the numerical value in the dosage form including the solubilizing agent such as water.

In order to solve the above problems, a shampoo composition according to one embodiment of the present invention contains (A) 0.2% by mass or more of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride; B) triethanolamine salt of amino acid type surfactant, and (C) coconut oil fatty acid PEG-7 glyceryl, the content of oily components is 0.3% by mass or less, and sulfate is substantially added. It is characterized by not containing anionic surfactant.

The shampoo composition may further include (D) at least one solvent selected from 1,3-butylene glycol, dipropylene glycol, propylene glycol, glycerin, and a monohydric alcohol having a main chain of less than 4 carbon atoms.

In the shampoo composition, the mass ratio (C+D)/(A) of the sum of the content of the component (C) and the content of the component (D) to the content of the component (A) is 20 or less. It's okay.

According to the present invention, it is possible to achieve both transparent formulation stability, feel, and foam quality.

Hereinafter, one embodiment of the shampoo composition of the present invention will be described. The shampoo composition of the present embodiment includes at least (A) O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, (B) a triethanolamine salt of an amino acid type surfactant, and (C ) Contains coconut oil fatty acid PEG-7 glyceryl, and the content of oily components is 0.3% by mass or less. Furthermore, it may contain, for example, at least one solvent selected from (D) 1,3-butylene glycol, dipropylene glycol, propylene glycol, glycerin, and monohydric alcohols whose main chain has less than 4 carbon atoms.

Component (A) improves the feel when washing hair. It also improves foam quality. Component (A) is O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride (polyquaternium- 10 (INCI name)). Specific examples include Leogard G, Leogard GP, Leogard MLP (manufactured by Lion Specialty Chemicals), UCARE Polymer JR-125, Leogard JR-400, Leogard JR-30M, Leogard LR-400, Leogard LR-30M ( Examples include Cellcoat SC-230M (manufactured by Akzo Nobel), Cellcoat SC-200, Cellcoat LC-200, Cellcoat LC-100, and Cellcoat HC-100 (manufactured by Toho Chemical Co., Ltd.).

The shampoo composition of this embodiment may contain a cationized polymer other than the component (A). Specific examples of cationized polymers other than component (A) include polymers or copolymers of cationized cellulose derivatives, cationic starch, cationized guar gum, cationized chitosan, and diallyl quaternary ammonium salts other than component (A). Examples include coalesced and quaternized polyvinylpyrrolidone.

Specific examples of cationized cellulose derivatives include hydroxyethylcellulose/dimethyldiallylammonium chloride copolymer (Polyquaternium-4: for example Cellcoat H-100 and Cellcoat L-200 (manufactured by Akzo Nobel)).

Specific examples of cationized guar gum include guar hydroxypropyltrimonium chloride. Specific examples of cationized chitosan include chitosan hydroxypropyltrimonium chloride and the like.

Specific examples of polymers or copolymers of diallyl quaternary ammonium salts include, for example, dimethyldiallylammonium chloride polymer (polydimethyldimethylenepyrrolidinium chloride) (polyquaternium-6: for example, Marquat 100 (manufactured by Luvrizol)), Examples include dimethyldiallyl ammonium chloride/acrylic acid copolymer (Polyquaternium-22: for example, Marquat 280 (manufactured by Luvrisol)), acrylic acid/diallyl quaternary ammonium salt/acrylamide copolymer, and the like.

Specific examples of quaternized polyvinylpyrrolidone include, for example, quaternary ammonium salts (polyquaternium-11: for example, Gaffcoat 734, 755 (ISP Japan Co., Ltd.) obtained from a copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate and diethyl sulfate; )) etc. These cationized polymers may be used alone or in combination of two or more cationized polymers. Among these cationized polymers, dimethyldiallylammonium chloride/acrylic acid copolymer liquid is preferred.

The lower limit of the content of component (A) in the shampoo composition is set as appropriate, but is preferably 0.2% by mass or more, more preferably 0.25% by mass or more, and even more preferably 0.3% by mass or more. It is. When the content of component (A) is 0.2% by mass or more, the feel during hair washing is improved and the foam quality is improved.

The upper limit of the content of component (A) in the shampoo composition is appropriately set, but is preferably 2% by mass or less, more preferably 1.5% by mass or less, still more preferably 1% by mass or less. When the content of component (A) is 2% by mass or less, the stability of the transparent formulation is improved.

The lower limit of the content of cationized polymers other than component (A) in the shampoo composition is set as appropriate, but is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0. .2% by mass or more. When the content of the cationized polymer other than component (A) is 0.05% by mass or more, the feel during hair washing is improved and the foam quality is improved.

The upper limit of the content of cationized polymers other than component (A) in the shampoo composition is set appropriately, but is preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass. It is as follows. When the content of the cationized polymer other than component (A) is 2% by mass or less, the feel during hair washing is improved and the foam quality is improved.

When the shampoo composition contains a cationized polymer other than the component (A), the content of the component (A) relative to the total content of the cationized polymer contained in the shampoo composition. The upper limit of the mass ratio (A/total cationized polymer content) is set as appropriate, but is preferably 0.8 or less, more preferably 0.7 or less, and even more preferably 0.6 or less. When this mass ratio is 0.8 or less, the stability of the transparent formulation is improved and the feel when washing hair is improved.

Component (B) improves the stability of transparent formulations. It also improves foam quality. Specific examples of component (B) include triethanolamine salts of N-acylamino acid surfactants. N-acyl amino acid type surfactants are salts of amino acids having saturated or unsaturated acyl groups, and salts of analogs of the same amino acids. Specific examples of the amino acids include glutamic acid, glycine, aspartic acid, alanine, phenylalanine, leucine, isoleucine, methionine, proline, tryptophan, valine, serine, N-methylglycine (sarcosine), N-methylalanine, etc. . Specific examples of analogs of the amino acid include 2-aminoethanesulfonic acid (taurine), N-methyltaurine, and the like. Moreover, the acidic amino acid and its analogs may be any of the D-form, L-form, and DL-form. Triethanolamine is applied as a counter ion for the anion group.

Specific examples of triethanolamine salts of N-acylamino acid type surfactants include cocoylglutamate triethanolamine (cocoylglutamate TEA), cocoylmethyltaurine triethanolamine, lauroylmethylalanine triethanolamine, and lauroylsarcosine triethanolamine. (lauroyl sarcosine TEA), lauroyl aspartate triethanolamine, lauroyl methyl taurate triethanolamine, stearoyl glutamate triethanolamine, myristoyl glutamate triethanolamine, palmitoyl proline triethanolamine, and the like. As the component (B), one type of (B) component may be used alone, or two or more types of (B) components may be used in an appropriate combination. Among these, cocoyl glutamate triethanolamine is preferred from the viewpoint of being excellent in the effect of improving the feel during hair washing, lauroyl sarcosine triethanolamine is preferred from the viewpoint of transparent formulation stability, and cocoyl glutamate triethanolamine and lauroyl sarcosine are preferred. It is more preferable to use triethanolamine in combination.

The lower limit of the content of component (B) in the shampoo composition is appropriately set, but is preferably 1% by mass or more, more preferably 1.5% by mass or more, and still more preferably 2% by mass or more. When the content of component (B) is 1% by mass or more, the stability of the transparent formulation is improved. It also improves foam quality.

The upper limit of the content of component (B) in the shampoo composition is appropriately set, but is preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10% by mass or less. When the content of component (B) is 15% by mass or less, the feel when washing hair is improved.

Component (C) improves the stability of the transparent formulation, especially at low temperatures, and also improves the feel during hair washing.
The lower limit of the content of component (C) in the shampoo composition is set as appropriate, but is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.5% by mass or more. It is. When the content of component (C) is 0.05% by mass or more, the stability of the transparent formulation is improved, especially at low temperatures, and the feel during hair washing is improved.

The upper limit of the content of component (C) in the shampoo composition is appropriately set, but is preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 2% by mass or less. When the content of component (C) is 5% by mass or less, the feel at the time of finishing is improved.

In the shampoo composition, the upper limit of the mass ratio (C/A) of the content of component (C) to the content of component (A) is set appropriately, but is preferably 5 or less, more preferably 4 or less, and Preferably it is 3 or less. When this mass ratio is 5 or less, the stability of the transparent formulation is improved and the feel during hair washing is improved. It also improves foam quality.

In the shampoo composition, the lower limit of the mass ratio (B+C)/(A) of the sum of the content of the component (B) and the content of the component (C) to the content of the component (A) is set as appropriate. , preferably 10 or more, more preferably 15 or more, even more preferably 20 or more. When this mass ratio is 10 or more, the stability of the transparent formulation is improved.

In the shampoo composition, the upper limit of the mass ratio (B+C)/(A) of the sum of the content of the component (B) and the content of the component (C) to the content of the component (A) is set as appropriate. , preferably 50 or less, more preferably 40 or less, still more preferably 30 or less. When this mass ratio is 50 or less, the feel during hair washing is improved. It also improves foam quality.

Component (D) is at least one solvent selected from 1,3-butylene glycol, dipropylene glycol, propylene glycol, glycerin, and monohydric alcohols whose main chain has less than 4 carbon atoms. Component (D) improves the stability of the transparent formulation, especially at low temperatures. Therefore, it is preferable that the shampoo composition contains component (D). As the component (D), one type of the component (D) may be used alone, or two or more types of the component (D) may be used in an appropriate combination. Specific examples of monohydric alcohols having a main chain of less than 4 carbon atoms include ethanol, n-propanol, isopropanol, tert-butyl alcohol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, and the like. Among these monohydric alcohols whose main chain has less than 4 carbon atoms, ethanol and isopropanol are preferred. Among these components (D), dipropylene glycol is preferred.

The lower limit of the content of component (D) in the shampoo composition is set as appropriate, but is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. . When the content of component (D) is 0.1% by mass or more, the stability of the transparent formulation is improved, especially at low temperatures.

The upper limit of the content of component (D) in the shampoo composition is appropriately set, but is preferably 5% by mass or less, more preferably 4.5% by mass or less, still more preferably 4% by mass or less. When the content of component (D) is 5% by mass or less, the feel during hair washing is improved. It also improves foam quality.

In the shampoo composition, the lower limit of the mass ratio (C+D)/(A) of the sum of the content of the (C) component and the content of the (D) component to the content of the (A) component is set as appropriate. , preferably 1 or more, more preferably 2 or more, still more preferably 3 or more. When this mass ratio is 1 or more, the stability of the transparent formulation is improved.

In the shampoo composition, the upper limit of the mass ratio (C+D)/(A) of the sum of the content of the (C) component and the content of the (D) component to the content of the (A) component is set as appropriate. , preferably 20 or less, more preferably 18 or less, even more preferably 16 or less. When this mass ratio is 20 or less, the feel during hair washing is improved. It also improves foam quality.

In the shampoo composition, the mass ratio of the total content of component (C) and the content of component (D) to the total content of cationized polymers (C + D) / (total content of cationized polymers) The lower limit is set as appropriate, but is preferably 0.5 or more, more preferably 1 or more, and still more preferably 1.5 or more. When this mass ratio is 0.5 or more, the stability of the transparent formulation is improved.

In the shampoo composition, the mass ratio of the total content of component (C) and the content of component (D) to the total content of cationized polymers (C + D) / (total content of cationized polymers) The upper limit is set as appropriate, but is preferably 10 or less, more preferably 9 or less, even more preferably 8 or less. When this mass ratio is 10 or less, the feel during hair washing is improved. It also improves foam quality.

Examples of oily components include oils and fats, waxes, hydrocarbons, ester oils, higher alcohols, higher fatty acids, alkyl glyceryl ethers, silicones, and the like, which have almost no solubility in water.

Specific examples of fats and oils include Argania spinosa kernel oil, olive oil, camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, and rice bran. oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, evening primrose oil, apricot kernel oil, persic oil, peach kernel oil, palm oil, egg yolk oil and the like. Specific examples of waxes include lanolin, beeswax, candelilla wax, carnauba wax, jojoba oil, and the like. Specific examples of hydrocarbons include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, petrolatum, liquid paraffin, light isoparaffin, light liquid isoparaffin, isoparaffin, and α-olefin. Examples include oligomers and synthetic squalane.

Specific examples of ester oils include diisopropyl adipate, isopropyl myristate, cetyl octoate, isononyl isononanoate, octyldodecyl myristate, isopropyl palmitate, stearyl stearate, myristyl myristate, isotridecyl myristate, and 2-palmitate. Ethylhexyl, octyldodecyl ricinoleate, cholesteryl/lanosteryl fatty acid with 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, caprin Examples include cetyl acid, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, cetyl 2-ethylhexanoate, and hydrogenated castor oil isostearate.

Specific examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, arachyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, and myristyl alcohol. , decyltetradecanol, lanolin alcohol and the like.

Specific examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, lanolin fatty acid, and the like. Specific examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, serakyl alcohol, isostearyl glyceryl ether, and the like.

Specific examples of silicones as oily components include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and highly polymerized silicones. These oily components may be used alone or in combination of two or more.

In the shampoo composition, the upper limit of the content of the oily component is 0.3% by mass or less, preferably 0.1% by mass or less, and it is more preferable that the shampoo composition does not substantially contain any oily component. When the content of the oily component is 0.3% by mass or less, the stability of the transparent formulation can be improved. In this embodiment, "substantially no oily components" means "no oily components are separately included", and even a small amount of oily components contained in each compounded component is excluded. isn't it.

The shampoo composition of this embodiment does not substantially contain sulfate-added anionic surfactant. In this embodiment, "does not contain substantially any anionic surfactant to which sulfate has been added" means "does not contain an anionic surfactant to which sulfate has been added". However, this does not exclude anionic surfactants to which a small amount of sulfate is added, which is included in each compounded component. More specifically, the shampoo composition contains less than 1% by mass of the anionic surfactant to which sulfate has been added. The content of the anionic surfactant to which a sulfate has been added in the shampoo composition may be less than 0.5% by mass, less than 0.1% by mass, or may be 0% by mass. Since the shampoo composition does not substantially contain sulfate-added anionic surfactants, the shampoo composition can improve the feel.

The shampoo composition may optionally contain ingredients other than those mentioned above, such as solubilizers other than those mentioned above, water-soluble polymers other than those mentioned above, inorganic polymers, surfactants other than those mentioned above, pH adjusters, sugars, Preservatives, stabilizers, animal, plant or microbial extracts, crude drug extracts, vitamins, fragrances, antioxidants, chelating agents, amino acids, ultraviolet absorbers, inorganic salts, acid dyes, hair dyes, itch suppressants, cold It may further contain a sensitizing agent and the like.

The solubilizer renders the shampoo composition liquid. Examples of solubilizers used include, for example, water and organic solvents (solvents). Specific examples of organic solvents include benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamon alcohol, anise alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, ethylene glycol phenyl ether ( phenoxyethanol), phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, alkyl ether, and the like. These solubilizers may be used singly or in combination of two or more solubilizers. Among these, water is preferably used because of its excellent ability to dissolve other ingredients in the shampoo composition. When water is used as a solvent, the content of water in the shampoo composition (content at the time of use) is preferably 40% by mass or more, more preferably 50% by mass or more.

Water-soluble polymers other than those mentioned above impart appropriate viscosity to the shampoo composition. Therefore, the shampoo composition may contain a water-soluble polymer within a range that does not impede the effects of the present invention. Examples of water-soluble polymers include natural polymers, semi-synthetic polymers, and synthetic polymers. Specific examples of natural polymers include starch, guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, gum tragacanth, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, Examples include casein, albumin, collagen, dextrin, triglucopolysaccharide (pullulan), and the like.

Specific examples of semi-synthetic polymers include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, starch phosphate, propylene glycol alginate, alginate, and the like.

Specific examples of synthetic polymers include PEG-120 methylglucose triisostearate, polyvinylcaprolactam, polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), vinylpyrrolidone-vinyl acetate (VP/VA) copolymer, polyvinyl butyral, Polyvinyl methyl ether, carboxyvinyl polymer, polysodium acrylate, polyacrylamide, polyethylene oxide, ethylene oxide/propylene oxide block copolymer, acrylic acid/alkyl acrylate copolymer, itaconic acid and polyoxyethylene (hereinafter referred to as "POE") A copolymer consisting of a half ester with an alkyl ether, or an ester of methacrylic acid and a POE alkyl ether, and at least one monomer selected from acrylic acid, methacrylic acid and alkyl esters thereof. It will be done. These water-soluble polymers may be used alone or in combination of two or more water-soluble polymers.

Specific examples of inorganic polymers include bentonite, magnesium aluminum silicate, laponite, hectorite, and silicic anhydride. These inorganic polymers may be used singly or in combination of two or more inorganic polymers.

Surfactants other than those mentioned above serve as emulsifiers or components for solubilizing each component, and emulsify or solubilize the shampoo composition during use to adjust the viscosity or improve viscosity stability. It also improves cleansability and hair feel. Therefore, the shampoo composition may contain surfactants other than those mentioned above within a range that does not impede the effects of the present invention. Examples of the surfactant include anionic surfactants other than those listed above, cationic surfactants, amphoteric surfactants, and nonionic surfactants other than those listed above.

Specific examples of anionic surfactants include olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfone fatty acid salts, and N-acyl amino acids other than those listed above. type surfactants, phosphate mono- or diester type surfactants, sulfosuccinates, N-alkyloylmethyl taurate salts other than those listed above, and derivatives thereof. Specific examples of counter ions for the anionic groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. Specific examples of sulfosuccinates include disodium lauryl sulfosuccinate.

Specific examples of cationic surfactants include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, Ethyl sulfate lanolin fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, behenyltrimethylammonium methylsulfate, behenyldimethylamine, behenic acid diethylaminoethylamide, behenic acid dimethylaminopropylamide, Examples include behenic acid dimethylaminoethylamide, stearyldimethylamine, palmitoxypropyldimethylamine, stearoxypropyldimethylamine, stearic acid dimethylaminopropylamide, and the like. Specific examples of alkyltrimethylammonium chloride include behenyltrimethylammonium chloride, aralkyltrimethylammonium chloride, and the like.

Specific examples of amphoteric surfactants include cocobetaine, lauramide propyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropyl betaine, lauryl betaine (lauryldimethylaminoacetic acid betaine), and lauryl. Examples include sodium aminopropionate, hydroxyalkyl (C12-14) hydroxyethylsarcosine, and the like.

Specific examples of the nonionic surfactant include fatty acid alkanolamide type nonionic surfactants, ether type nonionic surfactants, ester type nonionic surfactants, alkyl glucosides, and the like.

Examples of fatty acid alkanolamide-based nonionic surfactants include fatty acid alkanolamides, polyalkylene oxide fatty acid alkanolamides, and the like. Specific examples of fatty acid alkanolamide include lauric acid monoethanolamide, stearic acid monoethanolamide, and the like. Specific examples of the polyalkylene oxide fatty acid alkanolamide include POE lauric acid monoethanolamide, POE coconut oil fatty acid monoethanolamide, polyoxypropylene myristic acid monoethanolamide, polyoxypropylene coconut oil fatty acid monoisopropanolamide, and the like. Can be mentioned. Specific examples of POE lauric acid monoethanolamide include PEG-3 lauramide and the like.

Specific examples of ether-type nonionic surfactants include POE cetostearyl hydroxymyristyrene ether, POE cetyl ether (Ceteth), POE stearyl ether (Steareth), POE behenyl ether, POE oleyl ether (Oles), and POE lauryl. Examples include ether (laureth), POE octyl dodecyl ether, POE hexyl decyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, POE polyoxypropylene cetyl ether, POE polyoxypropylene decyl tetradecyl ether, and the like. Specific examples of POE cetostearyl hydroxymyristyrene ether include ceteareth-60 myristyl glycol.

Specific examples of ester type nonionic surfactants include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, POE glycerin monomyristic acid, POE sorbitol tetraoleate, POE sorbitol hexostearate, POE sorbitol monolaurate, POE coconut oil fatty acid glycerin other than the above, POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, distearic acid Polyethylene glycol, polyethylene glycol monolaurate, lipophilic glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, monostearic acid Sorbitan, sorbitan monopalmitate, sorbitan monolaurate, POE sorbitan monoisostearate, sucrose fatty acid ester, decaglyceryl monolaurate (polyglyceryl-10 laurate), decaglyceryl monostearate, decaglyceryl monooleate, deca monomyristate Examples include glyceryl, POE-reduced lanolin, and the like. Specific examples of polyethylene glycol distearate include PEG-150 distearate. Specific examples of POE sorbitan monoisostearate include PEG-20 sorbitan isostearate. Specific examples of POE sorbitan monolaurate include PEG-80 sorbitan laurate.

Specific examples of alkyl glucosides include alkyl (8 to 16 carbon atoms) glucoside, POE methyl glucoside, POE methyl dioleate glucoside, and the like. These surfactants may be used alone or in combination of two or more surfactants.

A pH adjuster may be added to adjust the pH of the shampoo composition. Examples of the pH adjuster include inorganic acids, organic acids, salts thereof, and the like. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, boric acid, and the like. Furthermore, specific examples of phosphoric acid include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, metaphosphoric acid, and the like. Specific examples of organic acids include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid, and benzoic acid. Specific examples of organic acid salts include sodium salts, potassium salts, ammonium salts, and the like. Specific examples of sugars include monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose, and trehalose, and sugar alcohols such as sorbitol. Specific examples of preservatives include paraben, methylparaben, sodium benzoate, and the like. Specific examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, and the like. Specific examples of animal, plant, or microbial extracts include Sapindus trifoliatus fruit extract, hydrolyzed yeast extract, and the like. Specific examples of antioxidants include ascorbic acids and sulfites. Specific examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and its salts, ethylenediaminehydroxyethyltriacetic acid and its salts, and hydroxyethane. Examples include diphosphonic acid (HEDP) and its salts. Specific examples of amino acids include threonine, arginine, theanine, taurine, and the like. Examples of inorganic salts include sodium chloride and sodium carbonate. Examples of itch suppressants include salicylic acid and derivatives thereof. Examples of the cooling agent include l-menthol. These other components may be used alone or in combination of two or more.

The dosage form of the shampoo composition at 25° C. is a liquid transparent preparation in order to improve the appearance characteristics. It can also be a non-aerosol, and in the case of a non-aerosol, it can take various forms such as a squeeze former type and a pump former type. Here, a transparent formulation is defined as, for example, when 30 mL of the shampoo composition is placed in a transparent No. 4 standard bottle (approximately 37 mL capacity), and as a result of visually observing the appearance, the 8-point letters placed on the back of the standard bottle can be read. shows.

The action and effect of the shampoo composition of this embodiment will be explained.
(1) The shampoo composition of the present embodiment includes (A) 0.2% by mass or more of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, and (B) an amino acid type surfactant. and (C) coconut oil fatty acid PEG-7 glyceryl, the content of oily components is 0.3% by mass or less, and an anionic surfactant to which sulfate is substantially added. It has a configuration that does not. Therefore, it is possible to achieve both the stability of the transparent preparation, the feel, and the quality of the foam.

(2) When the shampoo composition further contains a solvent as component (D), the stability of the transparent formulation is improved, especially at low temperatures.
Note that the above embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

- The shampoo composition of the above embodiment includes a shampoo composition (hair shampoo), a rinse-in shampoo, a scalp shampoo, and the like.
- The shampoo composition of the above embodiments only needs to have each of the components (A) to (D) mixed together during storage, and some of the other components may be stored as a separate agent.

Next, the embodiment will be described in more detail by giving Examples and Comparative Examples. Note that the present invention is not limited to the configuration described in the Examples section.
Shampoo compositions as transparent formulations containing each component shown in Tables 1 and 2 were prepared. The numerical value in the column showing each component in Tables 1 and 2 indicates the content of the component in the column, and the unit is mass %. First, a straight human hair wig (hereinafter simply referred to as a wig) was prepared, and the wig was bleached once with a bleaching agent (Promaster EX LT, manufactured by Hoyu Co., Ltd.), washed with water, and then dried. The wig bleached by this operation was used as a wig for evaluation. Using a wig for evaluation, the shampoo composition of each formulation was applied evenly over the entire body after being wetted with water, and the wig was rubbed to create lather, and then washed with water. After towel drying, the feel during hair washing and foam quality during hair washing were evaluated according to the following criteria. In addition, regarding the shampoo composition, the stability of the transparent formulation was evaluated according to the following criteria. In addition, the notations "A", "B", "C", and "D" in the table refer to the compounds corresponding to each component (A), (B), (C), and (D) described in the claims of the present application. show. On the other hand, the notations "a", "b", and "c" in the table indicate comparative compounds of components (A), (B), and (C) described in the claims of the present application.

(Transparent formulation stability)
Regarding the stability of the shampoo composition prepared as a transparent preparation, the shampoo composition was placed in a bottomed cylindrical transparent glass container with a diameter of 4 cm, and after being left at room temperature (25 ° C.) for 7 days, it was visually confirmed from the front side. At times, the letters and designs on the back side of the container were visually confirmed. In the same manner, even when the container was left at a low temperature (4° C.) for 7 days, the letters and designs on the back side of the container were visually confirmed when visually confirmed from the front side. The stability of the transparent formulation was determined by evaluation based on the following criteria.

Excellent (5 points) if there is no turbidity and characters and designs can be easily seen at room temperature, Good (4 points) if there is almost no turbidity and characters and designs can be seen, and some turbidity. However, those with characters and designs that can be seen are fair (3 points), those with a lot of cloudiness and characters and designs that are difficult to see are slightly poor (2 points), and those with a lot of cloudyness and characters that are difficult to identify.・If the design could not be confirmed, it was scored on a five-point scale from poor (1 point).

The low temperature evaluation was performed using the same criteria as the evaluation of transparent formulation stability at room temperature.
Each panelist calculated the average score from the room temperature score and the low temperature score for each shampoo composition of each example.

Regarding the scoring results of the shampoo compositions of each example, the average value of each panelist was calculated, and the average value was 4.1 points or more as "◎", 3.1 points or more and less than 4.1 points as "○", 2. The evaluation result was 1 point or more and less than 3.1 points as "△", and less than 2.1 points as "x". The results are shown in the "Transparent formulation stability" column of Tables 1 and 2.

(feel)
Five panelists judged the feel when washing hair using the following criteria. If there is no squeak and the feel is very good, it is excellent (5 points), if there is no squeak and the feel is good, it is good (4 points), if there is little squeak and the feel is somewhat good, it is fair (3 points), The score was given on a five-point scale: if the noise was a little strong and the feel was a little poor, the score was "slightly poor" (2 points), and if the creak was strong and the touch was poor, the score was poor (1 point). The average value is calculated for each panelist's scoring results, and an average value of 4.6 points or more is "Excellent: 5", 3.6 points or more and less than 4.6 points is "Good: 4", and 2.6 points or more is 3 points. The evaluation results were as follows: less than .6 points as "fair: 3", 1.6 points or more and less than 2.6 points as "slightly poor: 2", and less than 1.6 points as "poor: 1". The results are shown in the "Feel" column of Tables 1 and 2.

(foam quality)
The foam quality of the shampoo composition was evaluated in terms of the soft feel judged from the sensation when touching the foam with the hand and the appearance. Specifically, approximately 3 g of the shampoo composition of each example was placed on a flat board at 25°C, and five panelists observed the foam shape and elasticity when touched with their hands (sensory evaluation). , evaluated based on the following criteria. Excellent (5 points) if the foam has very high shape retention and elasticity; Good (4 points) if the foam retains its shape but has high elasticity; Those that can't be said to be good (3 points), those that have slightly low shape retention and elasticity are somewhat poor (2 points), and those that do not retain their shape and have very low elasticity are poor (1 point). ) was scored on a five-point scale. The average value is calculated for each panelist's scoring results, and an average value of 4.6 points or more is "Excellent: 5", 3.6 points or more and less than 4.6 points is "Good: 4", and 2.6 points or more is 3 points. .Less than 6 points is ``fair: 3'', 1.6 points or more and less than 2.6 points is ``slightly poor: 2'', and less than 1.6 points is ``poor: 1'', which is the result of foam quality evaluation 1. did. The results are shown in the "foam quality" column of Tables 1 and 2.

As shown in Table 1, it was confirmed that each Example had results of fair or better for each evaluation item.

As shown in Table 2, it was confirmed that Comparative Example 1, which does not contain component (C), was particularly inferior in the evaluation of feel compared to each of the Examples. It was confirmed that Comparative Example 2 containing (c) Steareth-2 instead of component (C) was inferior to each of the Examples, especially in the evaluation of transparent preparation stability. It was confirmed that Comparative Example 3 containing (b) Na lauroyl sarcosine and Na cocoyl glutamate instead of component (B) did not achieve both the stability of the transparent formulation and the feel and foam quality compared to each of the Examples. It was done. It was confirmed that Comparative Example 4, which contained (b) lauroylsarcosine Na instead of component (B), was unable to achieve both of the transparent formulation stability, feel, and foam quality compared to each of the Examples. It was confirmed that Comparative Example 5, which contained (b) Na cocoyl glutamate instead of component (B), was unable to achieve both the stability of the transparent preparation, the feel, and the foam quality compared to each of the Examples. It was confirmed that Comparative Example 6 containing an anionic surfactant to which sulfate was added had a poorer feel evaluation than each of the Examples. It was confirmed that Comparative Example 7 containing a predetermined amount of oily component was inferior in evaluation of transparent formulation stability and feel compared to each of the Examples. It was confirmed that Comparative Example 8, which did not contain component (A), was inferior to each of the Examples, especially in terms of feel and foam quality. It was confirmed that Comparative Example 9, in which the content of component (A) was less than 0.2% by mass, was inferior to each of the Examples, especially in terms of feel and foam quality. Comparative Example 10, in which the content of (A) component is less than 0.2% by mass, and (b) Na lauroyl sarcosine and Na cocoyl glutamate, is superior to each Example in terms of transparent formulation stability, feel, and foam. It was confirmed that quality was not compatible.

Claims (3)

(A) 0.2% by mass or more of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride,
(B) a triethanolamine salt of an amino acid type surfactant, and (C) a coconut oil fatty acid PEG-7 glyceryl,
The content of the oily component is 0.3% by mass or less, and the mass ratio (C)/(A) of the content of the component (C) to the content of the component (A) is 5 or less , and the content is substantially A shampoo composition that does not contain an anionic surfactant to which a sulfate has been added. The shampoo composition according to claim 1, further comprising (D) at least one solvent selected from 1,3-butylene glycol, dipropylene glycol, propylene glycol, glycerin, and a monohydric alcohol having a main chain of less than 4 carbon atoms. . 3. The mass ratio (C+D)/(A) of the sum of the content of the component (C) and the content of the component (D) to the content of the component (A) is 20 or less. shampoo composition.