JP7323396B2 - skin cleanser composition - Google Patents

Description

The present invention relates to skin cleanser compositions.

Conventionally, peeling cleansers and cleansers containing scrubbing agents have been known as skin cleansers that more reliably remove impurities such as dead skin cells and sebum metabolites that are difficult to remove with ordinary skin cleansers. It is

For example, Patent Document 1 discloses a cleansing cosmetic containing specific porous silica particles as a scrubbing agent. According to this cleansing cosmetic, it is described that a sufficient scrubbing feeling can be obtained even when rubbed with a weak rubbing force, and a stinging feeling can be suppressed.

Further, for example, Patent Document 2 discloses a peeling cosmetic containing polyvinyl alcohol in the inner water phase. According to this peeling cosmetic, it is described that it has an excellent cleansing effect for removing skin wastes and adhering dirt, has a good feel when used, and is less irritating to the skin.

JP 2017-178699 A JP 2003-286154 A

As described in Patent Documents 1 and 2, when conventional peeling cleansers or cleansers containing scrubbing agents are used, rubbing the scrubbing agent against the skin or exerting a chemical action on the skin may result in Improves cleaning power. However, when using peeling cleansers or cleansers containing scrubbing agents, at the same time, the particles may physically irritate the skin during cleansing (scrub feeling), and the skin may feel tight after cleansing. There is a problem that a large load is applied to the

Patent Documents 1 and 2 disclose techniques for reducing the load on the skin as described above, but even so, the load on the skin is not small due to the use of scrubbing agents and peeling cleansers.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a skin cleanser composition that has a cleansing property equivalent to that of conventional cleansers containing scrubbing agents and peeling cleansers but that is less burdensome on the skin.

As a result of intensive studies by the present inventors to achieve the above object, the present inventors have found that a According to the skin cleanser composition in which the content ratios of (A) and component (B) are within specific ranges, although it has cleansing properties equivalent to those of conventional cleansers containing scrubbing agents and peeling cleansers, It was found that the burden on the skin was small. The present invention has been completed based on these findings.

That is, the present invention contains the following component (A), the following component (B), and the following component (C), the content of the component (A) is 5.0 to 50.0% by mass, and the component ( A skin cleanser composition is provided in which the content of B) is 0.1 to 1.5% by mass.
Component (A): higher fatty acid and/or its salt Component (B): defatted rice bran Component (C): water

The skin cleanser composition further contains the following component (D), and the content of component (D) is preferably 0.05 to 2.0% by mass.
Component (D): Cationic polymer

The skin cleanser composition further contains component (E) below, and the content of component (E) is preferably 0.2 to 10.0% by mass.
Component (E): amino acid-based surfactant

The skin cleansing composition is preferably milky or creamy.

According to the skin cleanser composition of the present invention, although it has detergency equivalent to that of conventional cleansers containing scrubbing agents and peeling cleansers, the burden on the skin is small.

The skin cleanser composition of the present invention contains at least higher fatty acids and/or salts thereof, defatted rice bran, and water. In this specification, the higher fatty acid and/or its salt may be referred to as "component (A)", the defatted rice bran as "component (B)", and the water as "component (C)".

The skin cleanser composition of the present invention preferably further contains a cationic polymer. In addition, in this specification, a cationic polymer may be called "component (D)."

The skin cleanser composition of the present invention preferably further contains an amino acid surfactant. In addition, in this specification, an amino acid surfactant may be called "component (E)."

That is, the skin cleanser composition of the present invention contains at least component (A), component (B) and component (C). The skin cleanser composition of the present invention preferably further contains component (D) and/or component (E). The skin cleanser composition of the present invention may contain components other than the above components (A) to (E). In addition, each component contained in the skin cleanser composition of the present invention, for example, component (A), component (B), component (C), component (D), component (E), and other components Only one kind of each component may be used, or two or more kinds thereof may be used.

[Component (A)]
Component (A) is a higher fatty acid and/or a salt thereof (higher fatty acid (salt)). Component (A) is one or both of a higher fatty acid and a higher fatty acid salt, and contributes to the detergency, foamability, foam quality and viscosity of the skin cleanser composition of the present invention. Only one kind of component (A) may be used, or two or more kinds thereof may be used.

Examples of components containing higher fatty acids include higher fatty acids having 10 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid; olive oil, coconut oil, palm oil, cottonseed oil, etc. vegetable oils; animal oils such as fish oil and beef tallow;

Examples of salts of the higher fatty acid salts include alkali metal salts such as sodium salts and potassium salts; alkanolamine salts such as monoethanolamine salts, diethanolamine salts and triethanolamine salts. The higher fatty acid salt in the skin cleanser composition of the present invention may be one in which a higher fatty acid salt prepared in advance may be blended, or may be blended as a higher fatty acid and a base, respectively. It may be formed from higher fatty acids and bases in the process of manufacturing.

Component (A) is preferably a higher fatty acid (salt) having 10 to 20 carbon atoms. When the number of carbon atoms in the higher fatty acid (salt) is 10 or more, the viscosity of the skin cleansing composition will be moderate and the cleansing properties will be excellent. When the number of carbon atoms in the higher fatty acid (salt) is 20 or less, it has excellent compatibility with water, resulting in excellent foaming and excellent storage stability (especially storage stability at high temperatures). The number of carbon atoms in the higher fatty acid (salt) is more preferably 12 to 18 from the viewpoint of better foamability and foam quality.

In particular, component (A) preferably contains myristic acid from the viewpoint of better storage stability and better foamability and foam quality. In addition, it is preferable to contain lauric acid from the viewpoint of better compatibility with water and particularly better foaming in the initial stage.

The content of component (A) in the skin cleanser composition of the present invention is 5.0 to 50.0% by mass, preferably 10.0% by mass, based on 100% by mass of the skin cleanser composition of the present invention. 0 to 45.0% by mass, more preferably 20.0 to 40.0% by mass. When the above content is 5.0% by mass or more, it exhibits detergency and functions as a detergent, is excellent in foamability and foam quality, has an appropriate viscosity, and is excellent in storage stability. When the content is 50.0% by mass or less, skin roughness is less likely to occur, and stretchability during application is excellent. The content of component (A) is the total content of all components (A) in the skin cleanser composition of the present invention.

[Component (B)]
Component (B) is defatted rice bran. By blending the component (B), it is presumed that the sebum can be effectively adsorbed and removed by "degreasing", and it is presumed that it is due to its shape etc. It can be made to be less sensitive. In addition, the foaming and foam quality of the skin cleansing composition are excellent. Only one kind of component (B) may be used, or two or more kinds thereof may be used.

The proportion of component (B) having a particle size of 180 μm or less is preferably 90% by mass or more, more preferably 95% by mass or more, relative to 100% by mass of the total amount of component (B). When the above ratio is 90% by mass or more, the ratio of the component (B) having a large particle size is small, and the scrubbing feeling can be further suppressed. The proportion of component (B) having a particle size of 180 μm or less is calculated as the proportion of component (B) that passes through an 83-mesh sieve based on JIS Z8801-1.

The content of component (B) in the skin cleanser composition of the present invention is 0.1 to 1.5% by mass, preferably 0.1 to 1.5% by mass, based on 100% by mass of the skin cleanser composition of the present invention. 3 to 1.2% by mass, more preferably 0.3 to 1.0% by mass. When the content ratio is 0.1% by mass or more, the cleaning property is excellent. In addition, it is excellent in foamability and foam quality. When the content is 1.5% by mass or less, the feeling of use is excellent, and excessive degreasing of the skin can be suppressed, so that a feeling of tightness can be suppressed. The content of component (B) is the total content of all components (B) in the skin cleanser composition of the present invention.

[Component (C): water]
Component (C) is water, and although not particularly limited, purified water is preferred. The content of component (C) in the skin cleanser composition of the present invention is not particularly limited, but is preferably 15.0 to 50.0% by mass with respect to 100% by mass of the skin cleanser composition of the present invention. .

[Component (D)]
Component (D) is a cationic polymer (cationic polymer). In the skin cleanser composition of the present invention, component (D) forms a film on the skin after removing old keratin and skin stains with component (A) and component (B) to cover the skin. It can smooth the skin after cleansing. Only one kind of component (D) may be used, or two or more kinds thereof may be used.

Component (D) includes, for example, a polymer compound having a cationic nitrogen atom-containing group. For example, cationized cellulose, cationic starch, cationized guar gum, polyglycol polyamine condensates, derivatives thereof, polymers containing structural units derived from other monomers having nitrogen atom-containing groups exhibiting cationic properties, etc. are mentioned.

Examples of the monomer having a nitrogen atom-containing group exhibiting cationic properties include dialkyldiallylammonium salts such as dialkyldiallylammonium chloride, quaternized vinylpyrrolidone, vinylimidazolium trichloride, quaternized dimethylaminoethyl methacrylate, methacrylamidopropyl trimethylammonium chloride and the like. Among them, dialkyldiallylammonium salts (especially dialkyldiallylammonium chloride) are preferable, and dimethyldiallylammonium salts (especially dimethyldiallylammonium chloride) are more preferable.

Specific examples of component (D) include, for example, quaternary nitrogen-containing cellulose ether derivatives such as O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride; O-[2- Quaternary nitrogen-containing guar gum derivatives such as hydroxy-3-(trimethylammonio)propyl]guar gum; quaternary ammonium salt polymers such as polydimethylmethylenepiperidinium chloride; diallyl quaternary ammonium salt/acrylamide copolymer; diallyl quaternary ammonium salt/acrylic acid copolymer such as dimethyldiallyl ammonium chloride/acrylic acid copolymer; dimethyl diallyl ammonium chloride/acrylic acid/acrylamide copolymer, etc. diallyl quaternary ammonium salt/acrylamide/acrylic acid copolymer; quaternary polyvinylpyrrolidone derivatives such as vinylpyrrolidone/N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate; cationic starch; polyglycol polyamine condensate; adipic acid/dimethylaminohydroxypropylethylenetriamine copolymer; cationized dextran; Among them, diallyl quaternary ammonium salt/acrylamide copolymer, quaternary ammonium salt polymer, and diallyl quaternary ammonium salt/acrylic acid copolymer are preferable.

As the component (D), the INCI name is a compound denoted as "POLYQUATERNIUM (polyquaternium)-6", a compound denoted as "POLYQUATERNIUM (polyquaternium)-7", and a compound denoted as "POLYQUATERNIUM (polyquaternium)-10". compound described as "POLYQUATERNIUM (polyquaternium)-11", a compound described as "POLYQUATERNIUM (polyquaternium)-22", and a compound described as "POLYQUATERNIUM (polyquaternium)-39". Polyquaternium-6, polyquaternium-7, and polyquaternium-22 are particularly preferred as component (D) from the viewpoint of superior smoothness of the skin after cleansing.

A commercial item can be used for the component (D). Commercially available products of polyquaternium-6 include, for example, trade name "Merquat 100" and trade name "Merquat 106" (manufactured by LUBRIZOL). Commercially available products of polyquaternium-7 include, for example, the trade name “Marquat 550PR”, the trade name “Marquat S”, the trade name “Marquat 2200”, and the trade name “Marquat 740” (manufactured by LUBRIZOL). Commercially available products of polyquaternium-10 include, for example, the trade name "Merquat 10" (manufactured by LUBRIZOL). Commercially available products of polyquaternium-22 include, for example, the trade name "Marquat 280", the trade name "Marquat 281", and the trade name "Marquat 295" (manufactured by LUBRIZOL). Commercially available products of polyquaternium-39 include, for example, the trade name "Merquat PLUS 3330" (manufactured by LUBRIZOL). Commercially available products of O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride include, for example, trade name "Poise C-150L" (manufactured by Kao Corporation).

The content of component (D) in the skin cleanser composition of the present invention is not particularly limited, but is preferably 0.05 to 2.0% by mass with respect to 100% by mass of the skin cleanser composition of the present invention. , more preferably 0.1 to 1.5% by mass. When the content is 0.05% by mass or more, a sufficient covering effect can be obtained for the skin after washing. When the content is 2.0% by mass or less, stringiness of the skin cleanser is suppressed, and the cleansing agent can be easily cut when discharged from the container, resulting in excellent usability. The content of component (D) is the total content of all components (D) in the skin cleanser composition of the present invention.

[Component (E)]
Component (E) is an amino acid surfactant. When the skin cleansing composition of the present invention contains the component (E), it foams well and gives a refreshing feeling after cleansing, and can suppress a tight feeling after cleansing. Only one kind of component (E) may be used, or two or more kinds thereof may be used.

Component (E) includes, for example, N-acylsarcosine salts, N-acylglutamate salts, N-acylmethylalanine salts, N-acylglycine salts, N-acylarginine salts and the like. Salts of these amino acid-based surfactants include, for example, metal salts such as sodium salts, potassium salts, magnesium salts, aluminum salts and titanium salts; alkanolamine salts such as monoethanolamine, diethanolamine and triethanolamine; and ammonium salts. etc.

Examples of the N-acylsarcosine salts include potassium lauroyl sarcosine, triethanolamine lauroyl sarcosine, sodium myristoyl sarcosine, and sodium coconut oil fatty acid sarcosine. Examples of the N-acyl glutamates include sodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, disodium stearoyl glutamate, potassium cocoyl glutamate, coconut oil fatty acid acyl. Examples include sodium glutamate, triethanolamine coconut oil fatty acid acylglutamate, sodium coconut oil fatty acid/hardened beef tallow fatty acid acylglutamate, and the like. Examples of the N-acylmethylalanine salts include sodium lauroylmethylalanine, lauroylmethylalanine triethanolamine, sodium myristoylmethylalanine, and sodium coconut oil fatty acid methylalanine. Examples of the N-acylglycine salt include potassium cocoate acylglycine and sodium cocoate acylglycine. Examples of the N-acyl arginine salts include lauroyl arginine and coconut fatty acid arginine.

The content of component (E) in the skin cleanser composition of the present invention is not particularly limited, but is preferably 0.2 to 10.0% by mass with respect to 100% by mass of the skin cleanser composition of the present invention. , more preferably 1.0 to 8.0% by mass. When the content is 0.2% by mass or more, the foaming of the skin cleanser and the refreshed feeling after cleansing are excellent, and the tight feeling after cleansing can be further suppressed. When the content is 10.0% by mass or less, stickiness can be suppressed, and formulation stability is excellent. The content of component (E) is the total content of all components (E) in the skin cleanser composition of the present invention.

[Other ingredients]
The skin cleanser composition of the present invention may contain components (other components) other than the components (A) to (E) as long as the objects of the present invention are not impaired. The other ingredients are not particularly limited, and include, for example, ingredients commonly used in cosmetics and quasi-drugs. Specifically, for example, lower alcohols such as ethanol; oily components such as oils and fats, polyhydric alcohols, higher alcohols, ester oils, vegetable oils, and hydrocarbon oils; surfactants other than components (A) and components (E); Thickening agents such as hydroxymethyl cellulose, hydroxypropyl methyl cellulose, polysaccharide thickening agents; moisturizing agents; bactericides; pearling agents; scrubbing agents; Salts thereof, citric acid and its salts, lactic acid and its salts, sodium hydroxide, pH adjusters such as triethanolamine; fragrances; ultraviolet absorbers; antioxidants; sequestering agents (chelating agents); component (D) pigments; vitamins; amino acids; astringents; whitening agents; animal and plant extracts;

The skin cleanser composition of the present invention may further contain a polyhydric alcohol. When the skin cleanser composition of the present invention further contains a polyhydric alcohol, the viscosity can be adjusted without impairing the stability by considering the balance with the amount of the component (A). In addition, the moisturizing property after washing is further improved. The above polyhydric alcohols may be used alone or in combination of two or more.

As the polyhydric alcohol, known or commonly used polyhydric alcohols used as moisturizing agents in cosmetic raw materials can be used. Specific examples of polyhydric alcohols include glycerin, concentrated glycerin, diglycerin, polyglycerin, ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glucose, maltose, maltitol, and sucrose. , mannitol, sorbitol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol and the like.

When the polyhydric alcohol is included, the content in the skin cleanser composition of the present invention is not particularly limited, but is 0.5 to 40.0 mass % with respect to 100 mass % of the skin cleanser composition of the present invention. %, more preferably 1.0 to 30.0% by mass. When the content is 0.5% by mass or more, the effect of containing the polyhydric alcohol is sufficiently obtained. When the content is 40.0% by mass or less, the effect of containing the polyhydric alcohol can be obtained without impairing the feeling of use.

The skin cleanser composition of the present invention may further contain surfactants other than component (A) and component (E). When the above other surfactants are included, they act as foaming agents and viscosity modifiers during foaming. Examples of the other surfactants include nonionic surfactants, anionic surfactants other than components (A) and (E), cationic surfactants, and amphoteric surfactants. Only one type of the other surfactants may be used, or two or more types may be used.

Examples of nonionic surfactants include sorbitan fatty acid esters, glycerin fatty acid esters, alkylene oxide adducts thereof, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, and polyoxyethylene sorbitol fatty acid esters. , polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene sterol and its derivatives, polyoxyethylene lanolin and its derivatives, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, etc. mentioned.

Examples of sorbitan fatty acid esters include sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monopalmitate, sorbitan monolaurate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquistearate, and sesquioleic acid. Sorbitan, sorbitan sesquiisostearate, sorbitan coconut oil fatty acid, and the like. Alkylene oxide adducts of sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, and polyoxyethylene monoisostearate. Sorbitan, monococonut fatty acid polyoxyethylene sorbitan, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan trioleate, and the like.

Glycerin fatty acid esters include both monoglycerin fatty acid esters and polyglycerin fatty acid esters. Examples of monoglycerin fatty acid esters include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monobehenate, monooleic acid. Glyceryl, glyceryl monoerucate, glyceryl sesquioleate, glyceryl distearate, glyceryl diisostearate, glyceryl dialachinate and the like. Examples of the polyglycerol fatty acid ester include diglyceryl monocaprylate, decaglyceryl monocaprylate, hexaglyceryl monocaprate, tetraglyceryl monolaurate, hexaglyceryl monolaurate, decaglyceryl monolaurate, poly(4-10 ) glyceryl, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate, poly(2-10)glyceryl monostearate, diglyceryl monooleate, hexaglyceryl monooleate, diglyceryl sesquioleate, Polyglycerol with a polymerization degree of 2 to 10 of the above monoglycerin fatty acid ester such as poly(2-10) glyceryl diisostearate, poly(6-10) glyceryl distearate, diglyceryl triisostearate, poly(10) glyceryl tristearate and fatty acid esters. Examples of alkylene oxide adducts of glycerin fatty acid esters include polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monooleate, and polyoxyethylene glyceryl mono(caprylic/capric acid).

Examples of polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxypropylene cetyl ether, poly Oxypropylene isocetyl ether, polyoxypropylene stearyl ether, polyoxypropylene oleyl ether and the like.

Polyoxyalkylene fatty acid esters include both polyoxyalkylene mono-fatty acid esters and polyoxyalkylene di-fatty acid esters. Polyoxyalkylene mono fatty acid esters include, for example, polyethylene glycol mono fatty acid esters such as polyethylene glycol monooleate, polyethylene glycol monostearate, and polyethylene glycol monolaurate; propylene glycol monostearate, propylene glycol monolaurate, and propylene monooleate. Propylene glycol mono-fatty acid esters such as glycol and the like are included.

Examples of polyoxyalkylene difatty acid esters include polyethylene glycol difatty acid esters such as polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, polyethylene glycol distearate, polyethylene glycol diisostearate, and polyethylene glycol dibehenate. mentioned.

As the nonionic surfactant, from the viewpoint of being able to impart a cleansing effect without impairing the performance as a detergent composition, a glycerin fatty acid ester having a fatty acid of 12 or less carbon atoms, a fatty acid having 12 or less carbon atoms. Alkylene oxide adducts of glycerin fatty acid esters are preferred. Examples of glycerin fatty acid esters having 12 or less carbon atoms in fatty acids include polyglycerin fatty acid esters such as polyglyceryl caprylate and polyglyceryl laurate. Examples of alkylene oxide adducts of glycerol fatty acid esters having 12 or less carbon atoms in the fatty acid include mono (caprylic/capric acid) polyoxyethylene glyceryl having an average number of added moles of ethylene oxide of 6 to 8.

Among the above nonionic surfactants, glycerin fatty acid esters having 12 or less fatty acids and/or fatty acids having 12 or less carbon atoms are used for the purpose of imparting a cleansing effect without impairing the performance as a detergent composition. is not particularly limited, but is preferably 0.5 to 10.0% by mass with respect to 100% by mass of the skin cleanser composition of the present invention, and more It is preferably 0.8 to 5.0% by mass. Sufficient cleansing effect is obtained as the said content rate is 0.5 mass % or more. When the content is 10.0% by mass or less, the cleansing effect is exhibited without impairing the foamability and foam quality, and the storage stability is excellent.

In addition, among the above nonionic surfactants, the content of nonionic surfactants other than glycerin fatty acid esters having 12 or less fatty acids and alkylene oxide adducts of glycerin fatty acid esters having 12 or less fatty acids is Although not particularly limited, it is preferably 0.5 to 5.0% by mass, more preferably 1.0 to 3.5% by mass, based on 100% by mass of the skin cleanser composition of the present invention. By setting the content ratio within the above range, the stability of the composition is excellent.

Examples of the disinfectant include isopropylmethylphenol, benzalkonium chloride, hinokitiol, triclosan, dipotassium glycyrrhizinate, and salicylic acid. Among them, isopropylmethylphenol and salicylic acid are preferred, and isopropylmethylphenol is more preferred. Only 1 type may be used for the said disinfectant, and 2 or more types may be used for it.

The skin cleanser composition of the present invention preferably has a pH of 9.0 to 11.0, more preferably 9.0 to 10.0. When the pH is within the above range, the load on the skin during cleansing can be further reduced.

The skin cleanser composition of the present invention is not particularly limited, and can be produced by a known or commonly used method. For example, it can be produced by mixing the above components and using an emulsifying pot.

The skin cleansing composition of the present invention is a composition that is applied to the skin (skin) for cleansing. The site to which the skin cleansing composition of the present invention is applied is not particularly limited. , heels, neck, armpits, back, and the like. Among them, the skin cleanser composition of the present invention is preferably for the face from the viewpoint of less burden on the skin, although it has detergency equivalent to that of conventional cleansers containing scrubbing agents and peeling cleansers.

The skin cleanser composition of the present invention can be used as a face wash, body soap, hand soap and the like. Among them, a facial cleanser is preferable.

The skin cleansing composition of the present invention can be applied to various dosage forms, and is not particularly limited, but is preferably in the form of a cream or milky lotion. When the skin cleanser composition of the present invention is in the form of a cream or milky lotion, the easiness of lathering is particularly good. Moreover, the skin cleansing composition of the present invention may be in the form of the skin cleansing composition of the present invention filled in a container. Examples of the container include a pump container and a tube container.

The skin cleanser composition of the present invention uses water [component (C)] as a medium, contains higher fatty acids and/or salts thereof [component (A)] in a specific proportion, and defatted rice bran [component ( B)] is used in combination at a specific ratio, it is speculated that the shape of component (B) and the fact that it is “degreased” have a great effect, suppressing the scrubbing feeling and the taut feeling, and improving the skin. The burden is small, and even without using a scrubbing agent or the like, it is possible to have cleaning properties equivalent to those of conventional cleaning agents containing scrubbing agents and peeling cleaning agents.

EXAMPLES The present invention will be described in more detail below based on examples, but the present invention is not limited only to these examples. The compounding amounts shown in the table are the compounding amounts of each component (that is, the compounding amount of the active ingredient in each raw material; so-called pure content), and are expressed in "% by mass" unless otherwise specified. Potassium hydroxide was added so that the pH was 10.0. Moreover, Example 5 shall be read as Reference Example 1.

Examples 1-5, Comparative Examples 1-6
Using each component (components (A) to (E) and other components) shown in the table, each skin cleanser composition of Examples and Comparative Examples was prepared by a conventional method.

The details of each component described in the table are as follows.

<Component (A)>
Lauric acid: trade name "EDENOR C12-99" (manufactured by Emery Oleochemicals)
Myristic acid: trade name "EDENOR C14-99" (manufactured by Emery Oleochemicals)
Palmitic acid: trade name "EDENOR C16-98 MY" (manufactured by Emery Oleochemicals)
Stearic acid: trade name "EDENOR C18-98 MY" (manufactured by Emery Oleochemicals)
<Component (B)>
Defatted rice bran: trade name “defatted rice bran” (manufactured by Oryza Yuka Co., Ltd.), proportion of particle size 180 μm or less: 95% by mass or more <Component (D)>
Polyquaternium-7: "Marquat 550PR" (manufactured by LUBRIZOL)
<Component (E)>
Coconut fatty acid arginine: trade name “Amino Soap AR-12” (manufactured by Ajinomoto Healthy Supply Co., Ltd.)
<Other ingredients>
Glyceryl monostearate: trade name “CUTINA GMS-V” (manufactured by BASF)
Polysorbate 65: trade name “Rheodor TW-S320V” (manufactured by Kao Corporation)
Peach nucleus: trade name “PS grit G #60-80” (manufactured by Ichimaru Falcos Co., Ltd.), proportion of particle size 180 μm or less: 90% by mass or more Corn cob: trade name “CR grit G #60-80” (Ichimaru Falcos Co., Ltd.), ratio of particle size 180 μm or less: 90% by mass or more Apricot seeds: trade name “AP grit <spherical> G #60-80” (manufactured by Ichimaru Falcos Co., Ltd.), ratio of particle size 180 μm or less: 90 % by mass or more Walnut shell grains: trade name “WN Grit G #60-80” (manufactured by Ichimaru Falcos Co., Ltd.), ratio of particle size 180 μm or less: 90% by mass or more

(evaluation)
Each skin cleanser composition obtained in Examples and Comparative Examples was evaluated as follows. The evaluation results are shown in the table.

(Test Example 1: Detergency)
About 0.5 g of the skin cleansing composition was taken out on the palm, lukewarm water was added, and both hands were rubbed together to create foam to wash the face. Next, after thoroughly rinsing off the skin cleanser composition with lukewarm water, the detergency was evaluated, and the detergency (removability of sebum stains) was evaluated according to the following criteria.
[Evaluation criteria for detergency]
A: Detergency equivalent to cleaning agents containing scrubbing agents and peeling cleansers B: Detergency equivalent to cleaning agents containing scrubbing agents and peeling agents but inferior to A C: Detergents containing scrubbing agents and peeling agents Detergency is inferior to detergent

(Test Example 2: Smoothness)
About 0.5 g of the skin cleansing composition was taken out on the palm, lukewarm water was added, and both hands were rubbed together to create foam to wash the face. Next, the skin cleanser composition was thoroughly washed away with lukewarm water, and immediately after wiping the face with a towel, smoothness was evaluated according to the following criteria.
[Evaluation criteria for smoothness]
A: The skin does not feel sticky and feels smooth when touched. B: The skin feels smooth when touched, but is inferior to A. C: The skin feels sticky and does not feel smooth when touched.

(Test Example 3: Tight feeling)
About 0.5 g of the skin cleansing composition was taken out on the palm, lukewarm water was added, and both hands were rubbed together to create foam to wash the face. Next, the skin cleanser composition was thoroughly washed away with lukewarm water, and immediately after wiping the face with a towel, the feeling of tightness was evaluated according to the following criteria.
[Evaluation Criteria for Tight Feeling]
A: No feeling of tightness B: Feeling a little tightness but acceptable C: Feeling of tightness

(Test Example 4: Scrubbing feeling)
Take about 0.5 g of the skin cleanser composition into the palm of your hand, add lukewarm water, and rub your hands together to create a lather. evaluated according to the standard.
[Evaluation Criteria for Scrubbing Feeling]
A: No burden on skin due to scrubbing feeling B: Burden on skin due to scrubbing feeling

(Test Example 5: Foaming)
About 0.5 g of the skin cleanser composition was taken out on the palm, lukewarm water was added, and both hands were rubbed together to form a foam. The foamability was evaluated according to the following criteria.
[Evaluation Criteria for Foaming]
A: Extremely fast foaming B: Fast foaming C: Slow foaming

(Test Example 6: foam quality)
The foam quality of the foam produced by foaming the skin cleanser composition in Test Example 5 was evaluated according to the following criteria.
[Evaluation Criteria for Foam Quality]
A: Very fine foam texture B: Fine foam texture C: Coarse foam texture

When the skin cleanser composition of the present invention (Example) is used, it has cleansing properties equivalent to those of conventional cleansers containing scrubbing agents and peeling cleansers, and also has a tight feeling after cleansing and scrubbing during cleansing. It was evaluated as having little burden on the skin without being felt. In addition, it was evaluated as excellent in smoothness of the skin after cleansing, and excellent in latherability and foam quality. On the other hand, when the component (B) was not blended (Comparative Example 1), the detergency was evaluated to be inferior to the scrubbing agent-containing detergent and the peeling detergent. In addition, when the content of component (B) was high (Comparative Example 2), a feeling of tightness was felt after cleansing, and it was evaluated that the burden on the skin was large. In addition, when a material predicted to have the same effect as component (B) was used instead of component (B) (Comparative Examples 3 to 6), a scrubbing feeling was felt during cleansing, and the skin was burdened. was rated as large.

Furthermore, formulation examples of the skin cleanser composition of the present invention are shown below.
(Prescription example 1)
Lauric acid 6.0% by mass
Myristic acid 11.0% by mass
Palmitic acid 5.0% by mass
Stearic acid 9.0% by mass
Defatted rice bran 0.8% by mass
Polyquaternium-7 0.2% by mass
Coconut fatty acid arginine 1.0% by mass
Glyceryl monostearate 2.0% by mass
Polysorbate 65 1.0% by mass
Lauramidopropyl betaine 0.5% by mass
Glycerin 16.0% by mass
Polyethylene glycol 1500 4.0% by mass
Maltitol 5.0% by mass
Hydroxypropyltrimonium hyaluronate 0.001% by mass
Lactic acid 0.03% by mass
Tetrasodium edetate 0.05% by mass
Essential oil 0.1% by mass
Potassium hydroxide Appropriate amount Water Total remaining amount 100% by mass

(Prescription example 2)
Lauric acid 6.0% by mass
Myristic acid 11.0% by mass
Palmitic acid 5.0% by mass
Stearic acid 9.0% by mass
Defatted rice bran 0.7% by mass
Polyquaternium-7 0.2% by mass
Coconut fatty acid arginine 1.0% by mass
Glyceryl monostearate 2.0% by mass
Polysorbate 65 1.0% by mass
Lauramidopropyl betaine 0.5% by mass
Polyglyceryl-3 caprylate 0.4% by mass
PEG-6 (caprylic/capric) glycerides 0.8% by weight
Glycerin 16.0% by mass
Polyethylene glycol 400 4.0% by mass
Maltitol 5.0% by mass
Tetrasodium edetate 0.05% by mass
Hydroxypropyltrimonium hyaluronate 0.001% by mass
Lactic acid 0.03% by mass
Essential oil 0.1% by mass
Potassium hydroxide Appropriate amount Water Total remaining amount 100% by mass

(Prescription example 3)
Lauric acid 3.0% by mass
Myristic acid 15.0% by mass
Palmitic acid 10.0% by mass
Stearic acid 7.0% by mass
Defatted rice bran 0.4% by mass
Polyquaternium-7 0.2% by mass
Coconut fatty acid arginine 1.0% by mass
Glyceryl monostearate 1.5% by mass
Polysorbate 65 1.0% by mass
Glycerin 18.0% by mass
Sorbitol 5.0% by mass
Tetrasodium edetate 0.05% by mass
Hydroxypropyltrimonium hyaluronate 0.001% by mass
Lactic acid 0.03% by mass
Essential oil 0.1% by mass
Potassium hydroxide Appropriate amount Water Total remaining amount 100% by mass

(Prescription example 4)
Lauric acid 6.0% by mass
Myristic acid 11.0% by mass
Palmitic acid 5.0% by mass
Stearic acid 9.0% by mass
Defatted rice bran 1.0% by mass
Polyquaternium-7 0.2% by mass
Coconut fatty acid arginine 1.0% by mass
Glyceryl monostearate 2.0% by mass
Polysorbate 65 1.0% by mass
Lauramidopropyl betaine 0.5% by mass
Glycerin 16.0% by mass
Polyethylene glycol 1500 4.0% by mass
Maltitol 5.0% by mass
Isopropylmethylphenol 0.05% by mass
Tetrasodium edetate 0.05% by mass
Essential oil 0.1% by mass
Potassium hydroxide Appropriate amount Water Total remaining amount 100% by mass

Claims (3)

It contains the following component (A), the following component (B), the following component (C), the following component (E), a glycerin fatty acid ester, and an alkylene oxide adduct of a sorbitan fatty acid ester, and the content of the component (A) is 5.0 to 50.0% by mass, the content of component (B) is 0.1 to 1.5% by mass, the content of component (E) is 0.2 to 10.0% by mass, the glycerin The total content of the fatty acid ester and the alkylene oxide adduct of the sorbitan fatty acid ester is 0.5 to 5.0% by mass,
The component (B) is a skin cleanser composition in which the proportion of the component (B) having a particle size of 180 μm or less is 90% by mass or more with respect to 100% by mass of the total amount of the component (B).
Component (A): Higher fatty acid and/or its salt Component (B): Defatted rice bran Component (C): Water Component (E): Amino acid-based surfactant The skin cleanser composition according to Claim 1, further comprising the following component (D), wherein the content of said component (D) is 0.05 to 2.0% by mass.
Component (D): Cationic polymer 3. The skin cleanser composition according to claim 1, which is in the form of an emulsion or cream.