CN112739316A

CN112739316A - Skin cleanser composition

Info

Publication number: CN112739316A
Application number: CN201980061533.1A
Authority: CN
Inventors: 石井彩香; 池田惠; 川田纯平; 冈本学
Original assignee: Mandom Corp
Current assignee: Mandom Corp
Priority date: 2018-11-14
Filing date: 2019-09-20
Publication date: 2021-04-30
Also published as: WO2020100428A1; KR20210046711A

Abstract

The invention provides a skin cleanser composition which has the same cleaning performance as a conventional cleanser containing a polishing agent and a peeling cleanser, but causes less burden on the skin. The skin cleanser composition of the present invention contains component (a): higher fatty acid and/or salt thereof, component (B1): fibrous cellulose and/or ingredient (B2): defatted rice bran, component (C): cationic polymer and component (D): water, wherein the content of the component (A) is 5.0-50.0% by mass, the content of the component (B1) and/or the component (B2) is 0.1-10.0% by mass, and the content of the component (C) is 0.05-2.0% by mass.

Description

Skin cleanser composition

Technical Field

The present invention relates to a skin cleanser composition.

Background

Conventionally, as skin cleansing agents that more reliably remove metabolites such as old keratin and sebum as skin and that are difficult to remove with ordinary skin cleansing agents, there have been known peeling-type cleansing agents and cleansing agents containing a scrub agent.

For example, patent document 1 discloses a cleansing cosmetic containing specific porous silica particles as a polishing agent. It is described that the cleansing cosmetic can provide a sufficient abrasive feeling and suppress a tingling sensation even when kneaded with a weak application force.

In addition, for example, patent document 2 discloses a release type cosmetic containing polyvinyl alcohol in an internal aqueous phase. It is described that the peel-off cosmetic composition has an excellent cleaning effect of removing metabolic waste and attached dirt from the skin, gives a good feeling of use, and causes little irritation to the skin.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2017-178699

Patent document 2: japanese patent laid-open publication No. 2003-286154

Disclosure of Invention

Problems to be solved by the invention

As described in patent documents 1 and 2, when a conventional release-type cleansing agent or a cleansing agent containing an abrasive agent is used, the cleansing force is increased by rubbing the abrasive agent against the skin and applying a chemical action. However, when a release-type cleansing agent or a cleansing agent containing a scrub agent is used, there are problems that a feeling of physical stimulation of the particles to the skin (a scrub feeling) is felt during cleansing and a large burden is imposed on the skin such as a feeling of tightness is felt on the skin after cleansing.

Patent documents 1 and 2 disclose techniques for reducing the burden on the skin as described above, but even in this case, since a polishing agent or a release-type cleansing agent is used, the burden on the skin is not small.

Accordingly, an object of the present invention is to provide a skin cleansing composition which has cleansing properties equivalent to those of conventional cleansing agents and peeling-off type cleansing agents containing a scrub agent, but which causes less burden on the skin and further has excellent smoothness of the skin after cleansing.

Means for solving the problems

As a result of intensive studies to achieve the above object, the inventors of the present invention have found that a composition containing the component (a): higher fatty acid and/or salt thereof, component (B1): fibrous cellulose and/or ingredient (B2): defatted rice bran, component (C): cationic polymer and component (D): the skin cleansing composition containing water and components (a) to (C) in the specific ranges has the same cleansing properties as those of conventional scrub agent-containing cleansers and peeling cleansers, but causes less burden on the skin and further has excellent smoothness of the cleansed skin. The present invention has been completed based on the above findings.

Namely, the present invention provides a skin cleansing composition comprising the following component (A), the following component (B1) and/or the following component (B2), the following component (C) and the following component (D), wherein the content of the component (A) is 5.0 to 50.0% by mass, the content of the component (B1) and/or the component (B2) is 0.1 to 10.0% by mass, the content of the component (C) is 0.05 to 2.0% by mass,

component (A): a higher fatty acid and/or a salt thereof,

component (B1): the cellulose in the form of fibers is,

component (B2): the method comprises the steps of degreasing rice bran,

component (C): a cationic polymer which is a mixture of a cationic polymer,

component (D): and (3) water.

The skin cleansing composition further comprises the following component (E), the content ratio of the component (E) is preferably 0.2 to 10.0 mass%,

component (E): an amino acid surfactant.

Effects of the invention

The skin cleanser composition of the present invention has the same cleansing performance as conventional cleansers containing abrasives and peeling cleansers, but causes less burden on the skin, and further has excellent smoothness of the cleansed skin.

Detailed Description

The skin cleansing composition of the present invention contains at least a higher fatty acid and/or a salt thereof, fibrous cellulose and/or defatted rice bran, a cationic polymer, and water. In the present specification, the higher fatty acid and/or a salt thereof is sometimes referred to as "component (a)", the fibrous cellulose as "component (B1)", the defatted rice bran as "component (B2)", the cationic polymer as "component (C)", and the water as "component (D)". The above-mentioned component (B1) and the above-mentioned component (B2) may be collectively referred to as "component (B)".

The skin cleanser composition of the present invention preferably further contains an amino acid surfactant. In the present specification, the amino acid-based surfactant may be referred to as "component (E)".

That is, the skin cleanser composition of the present invention contains at least component (a), component (B), component (C), and component (D). The skin cleanser composition of the present invention preferably further contains ingredient (E). The skin cleanser composition of the present invention may contain components other than the above components (a) to (E). In addition, the skin cleanser composition of the present invention may contain only one of the components (a), (B), (C), (D), (E), and other components, or may contain two or more of the components.

[ component (A) ]

The component (a) is a higher fatty acid and/or a salt thereof (higher fatty acid (salt)). The component (a) is either or both of a higher fatty acid and a higher fatty acid salt, and contributes to the cleaning property, foaming property, foam quality, and viscosity of the skin cleanser composition of the present invention. The component (A) may be used alone or in combination of two or more.

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

Examples of the salt of the higher fatty acid salt include alkali metal salts such as sodium salt and potassium salt; alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt. The higher fatty acid salt in the skin cleanser composition of the present invention may be a higher fatty acid salt prepared in advance as a salt, or a higher fatty acid salt prepared from a higher fatty acid and a base in the course of producing a skin cleanser composition by separately mixing the higher fatty acid salt and the base.

Among them, the component (A) is preferably a higher fatty acid (salt) having 10 to 20 carbon atoms. When the number of carbon atoms of the higher fatty acid (salt) is 10 or more, the skin cleanser composition has a moderate viscosity and is more excellent in cleansing properties. When the number of carbon atoms of the higher fatty acid (salt) is 20 or less, the higher fatty acid (salt) has excellent water-fusible properties, and therefore has more excellent foamability and more excellent storage stability (particularly storage stability at high temperatures). The number of carbon atoms of the higher fatty acid (salt) is more preferably 12 to 18 from the viewpoint of more excellent foamability and foam quality.

The component (a) particularly preferably contains myristic acid from the viewpoint of more excellent storage stability and from the viewpoint of more excellent foamability and foam quality. Further, lauric acid is preferably contained from the viewpoint of more excellent water-fusible properties, particularly more excellent initial foamability.

The content of the component (a) in the skin cleanser composition of the present invention is 5.0 to 50.0% by mass, preferably 10.0 to 45.0% by mass, and more preferably 20.0 to 40.0% by mass, based on 100% by mass of the skin cleanser composition of the present invention. When the content is 5.0 mass% or more, the cleansing property is exhibited to function as a cleansing agent, and the foam property and foam quality are excellent, and the viscosity is appropriate and the storage stability is excellent. When the content is 50.0% by mass or less, skin roughness is not easily caused and the spreadability during application is excellent. The content ratio of the component (a) is the total of the content ratios of all the components (a) in the skin cleanser composition of the present invention.

[ component (B1) ]

The component (B1) as the component (B) is fibrous cellulose. In the present specification, the fibrous cellulose refers to fibrous cellulose existing in a state of single fibers in the skin cleansing composition, and is different from crystalline cellulose powder in which molecular chains of cellulose exist densely and regularly or aggregated non-fibrous cellulose particles (cellulose powder). The component (B1) may be used alone or in combination of two or more.

The skin cleansing composition of the present invention can physically entangle and remove old keratin and dirt on the skin by using the component (B1). In addition, a smooth feeling can be imparted to the skin after cleansing. By using the component (a) in combination, the cleaning performance equivalent to that of a conventional polishing agent-containing cleaning agent or a release type cleaning agent is exhibited.

The average fiber length (μm) of the component (B1) is not particularly limited, but is preferably 30 to 500 μm, and more preferably 200 to 400 μm, from the viewpoint of excellent dispersibility in the skin cleanser composition and from the viewpoint of being able to entangle and remove old keratin and dirt on the skin.

The average fiber diameter (μm) of the component (B1) is not particularly limited, but is preferably 5 to 300 μm, and more preferably 30 to 100 μm, from the viewpoint of excellent dispersibility in the skin cleanser composition and from the viewpoint of being able to entangle and remove old keratin and dirt on the skin.

The average fiber density (mg/mL) of the component (B1) is not particularly limited, but is preferably 70 to 100mg/mL, more preferably 80 to 90mg/mL, from the viewpoint of excellent dispersibility in the skin cleanser composition and from the viewpoint of being able to entangle and remove old keratin and dirt on the skin.

As the component (B1), a commercially available one can be used. Examples of commercially available products of the component (B1) include a product name "VITACEL CS300 FC" (manufactured by Rettenmaier).

[ component (B2) ]

The component (B2) as the component (B) is defatted rice bran. It is presumed that the incorporation of the component (B2) effectively adsorbs and removes sebum because it is "degreased", and that the cleansing property is excellent and the grainy feeling is suppressed because of its shape and the like. In addition, the skin cleanser composition is excellent in foamability and foam quality. The component (B2) may be used alone or in combination of two or more.

In the component (B2), the proportion of the component (B2) having a particle diameter of 180 μm or less is preferably 90 mass% or more, more preferably 95 mass% or more, based on 100 mass% of the total amount of the component (B2). When the above proportion is 90% by mass or more, the proportion of the component (B2) having a large particle diameter is small, and the grainy feel can be further suppressed. The proportion of the component (B2) having a particle size of 180 μm or less was calculated as the proportion of the component (B2) passing through an 83-mesh sieve in accordance with JIS Z8801-1.

The content ratio of the component (B) (i.e., the content ratio of the component (B1) and/or the component (B2)) in the skin cleanser composition of the present invention is 0.1 to 10.0% by mass based on 100% by mass of the skin cleanser composition of the present invention. By setting the content to 0.1 mass% or more, the cleaning property is excellent. By setting the content to 10.0 mass% or less, the feeling of use is excellent. If the content exceeds 10.0 mass%, the volume occupied by the component (B) in the skin cleanser composition increases, and the formulation of the cleanser composition cannot be maintained. The content ratio of the component (B) is the total of the content ratios of all the components (B) in the skin cleanser composition of the present invention. That is, in the case where only one of the component (B1) and the component (B2) in the component (B) is blended, the content ratio of the component (B) is the content ratio of the component (B1) or the component (B2), and in the case where both are blended, the content ratio of the component (B) is the total of the content ratios of the component (B1) and the component (B2).

When the component (B1) is used as the component (B), the content of the component (B1) in the skin cleanser composition of the present invention is not particularly limited, but is preferably 1.0 to 10.0 mass%, more preferably 1.2 to 8.0 mass%, and still more preferably 1.5 to 6.0 mass%, based on 100 mass% of the skin cleanser composition of the present invention. When the content ratio is 1.0 mass% or more, old keratin and dirt on the skin can be more sufficiently entangled and removed, and the cleansing property is more excellent. When the content ratio is 10.0% by mass or less, the feeling of use is more excellent. Even if the content exceeds 10.0 mass%, the cleaning property is almost peaked. If the content exceeds 10.0 mass%, the volume occupied by the component (B1) in the skin cleanser composition increases, and the dosage form of the cleanser composition cannot be maintained. The content ratio of the component (B1) is the total of the content ratios of all the components (B1) in the skin cleanser composition of the present invention.

When the component (B2) is used as the component (B), the content of the component (B2) in the skin cleanser composition of the present invention is not particularly limited, but is preferably 0.1 to 1.5% by mass, more preferably 0.3 to 1.2% by mass, and still more preferably 0.3 to 1.0% by mass, based on 100% by mass of the skin cleanser composition of the present invention. When the content ratio is 0.1% by mass or more, the cleaning property is more excellent. Further, the foaming property and foam quality are more excellent. When the content ratio is 1.5% by mass or less, the feeling of use is more excellent, and excessive defatting of the skin can be suppressed, and the feeling of tightness can be further suppressed. The content ratio of the component (B2) is the total of the content ratios of all the components (B2) in the skin cleanser composition of the present invention.

[ component (C) ]

The component (C) is a cationic polymer (cationic polymer). In the skin cleanser composition of the present invention, the component (C) can make the skin smooth after cleansing by forming a film on the skin after removing old keratin and dirt on the skin with the component (a) and the component (B) to cover the skin. The component (C) may be used alone or in combination of two or more.

The component (C) is, for example, a polymer compound having a nitrogen atom-containing group which exhibits cationic properties. Examples thereof include cationized cellulose, cationic starch, cationized guar gum, polyethylene glycol polyamine condensate, and derivatives thereof, and polymers containing other structural units derived from monomers having a nitrogen atom-containing group that exhibit cationicity.

Examples of the monomer having a nitrogen atom-containing group which exhibits cationic properties include dialkyl diallyl ammonium salts such as dialkyl diallyl ammonium chloride, quaternized vinyl pyrrolidone, vinyl imidazolium trichloride, quaternized dimethylaminoethyl methacrylate, methacrylamidopropyl trimethyl ammonium chloride, and the like. Among them, preferred are dialkyldiallylammonium salts (particularly dialkyldiallylammonium chloride), and more preferred are dimethyldiallylammonium salts (particularly dimethyldiallylammonium chloride).

Specific examples of the component (C) include quaternary nitrogen-containing cellulose ether derivatives such as O- [ 2-hydroxy-3- (trimethylammonium) propyl ] hydroxyethyl cellulose chloride; quaternary nitrogen-containing guar derivatives such as O- [ 2-hydroxy-3- (trimethylammonium) propyl ] guar chloride; quaternary ammonium salt polymers such as polydimethylmethylenepiperidinium chloride; diallyl quaternary ammonium salt/acrylamide copolymers such as dimethyldiallylammonium chloride-acrylamide copolymers; diallyl quaternary ammonium salt/acrylic acid copolymers such as dimethyldiallylammonium chloride-acrylic acid copolymers; diallyl quaternary ammonium salt/acrylamide/acrylic acid copolymers such as dimethyldiallylammonium chloride-acrylic acid-acrylamide copolymers; quaternized polyvinylpyrrolidone derivatives such as vinylpyrrolidone-N, N-dimethylaminoethyl methacrylate copolymer diethylsulfate; a cationic starch; polyethylene glycol polyamine condensates; adipic acid-dimethylamino hydroxypropyl ethylenetriamine copolymer; cationized dextran, and the like. Among them, preferred are diallyl quaternary ammonium salt/acrylamide copolymers, quaternary ammonium salt polymers, and diallyl quaternary ammonium salt/acrylic acid copolymers.

As the component (C), there may be mentioned a compound described as "POLYQUATERNIUM-6" in the INCI name, a compound described as "POLYQUATERNIUM-7", a compound described as "POLYQUATERNIUM-10", a compound described as "POLYQUATERNIUM-11", a compound described as "POLYQUATERNIUM-22", and a compound described as "POLYQUATERNIUM-39". Among the components (C), polyquaternium-6, polyquaternium-7 and polyquaternium-22 are preferable from the viewpoint of more excellent smoothness of the skin after cleansing.

As the component (C), commercially available products can be used. Examples of the commercially available polyquaternium-6 include a product name "Marcoat 100" and a product name "Marcoat 106" (manufactured by LUBRIZOL Co., Ltd.). Examples of the commercially available polyquaternium-7 include a product name "Marcoat 550 PR", a product name "Marcoat S", a product name "Marcoat 2200", and a product name "Marcoat 740" (manufactured by LUBRIZOL Co., Ltd.). Examples of the commercially available polyquaternium-10 include "Marcoat 10" (manufactured by LUBRIZOL Co.). Examples of the commercially available polyquaternium-22 include a product name "Marcoat 280", a product name "Marcoat 281", and a product name "Marcoat 295" (manufactured by LUBRIZOL Co., Ltd.). Examples of commercially available polyquaternium-39 include "Marcoat PLUS 3330" (manufactured by LUBRIZOL Co., Ltd.). Examples of commercially available products of O- [ 2-hydroxy-3- (trimethylammonium) propyl ] hydroxyethyl cellulose chloride include "POIZ C-150L" (manufactured by Kao corporation).

The content of the component (C) in the skin cleanser composition of the present invention is 0.05 to 2.0% by mass, preferably 0.1 to 1.5% by mass, based on 100% by mass of the skin cleanser composition of the present invention. By setting the content to 0.05 mass% or more, a sufficient coverage effect can be obtained on the skin after cleansing. By setting the content to 2.0 mass% or less, the skin cleansing agent can be inhibited from stringiness, and the skin cleansing agent can be satisfactorily cut off when discharged from a container and is excellent in usability. The content ratio of the component (C) is the total of the content ratios of all the components (C) in the skin cleanser composition of the present invention.

[ component (D): water ]

The component (D) is water, and is not particularly limited, and is preferably purified water. The content of the component (D) in the skin cleanser composition of the present invention is not particularly limited, and is preferably 15.0 to 50.0% by mass based on 100% by mass of the skin cleanser composition of the present invention.

[ component (E) ]

The component (E) is an amino acid surfactant. When the skin cleanser composition of the present invention contains the component (E), the foaming property and the refreshing feeling after cleansing are excellent, and the feeling of tightness after cleansing can be suppressed. The component (E) may be used alone or in combination of two or more.

Examples of the component (E) include N-acyl sarcosinate, N-acyl glutamate, N-acyl methyl alanine salt, N-acyl glycinate, and N-acyl arginine salt. Examples of the salt in these amino acid surfactants include metal salts such as sodium salt, potassium salt, magnesium salt, aluminum salt, and titanium salt; alkanolamine salts such as monoethanolamine, diethanolamine, and triethanolamine; ammonium salts, and the like.

Examples of the N-acyl sarcosinate include potassium lauroyl sarcosinate, triethanolamine lauroyl sarcosinate, sodium myristoyl sarcosinate, and sodium cocoate fatty acid sarcosinate. Examples of the N-acyl glutamate include sodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium myristate glutamate, potassium stearoyl glutamate, disodium stearoyl glutamate, potassium cocoyl glutamate, sodium cocoyl fatty acid acyl glutamate, triethanolamine cocoyl fatty acid acyl glutamate, and sodium cocoyl fatty acid-hydrogenated tallow fatty acid acyl glutamate. Examples of the N-acyl methyl alanine salts include sodium lauroyl methyl alanine, triethanolamine lauroyl methyl alanine, sodium myristoyl methyl alanine, and sodium coconut oil fatty acid methyl alanine. Examples of the N-acyl glycinate include potassium coconut oil fatty acid acyl glycinate and sodium coconut oil fatty acid acyl glycinate. Examples of the N-acyl arginine salt include lauroyl arginine and coconut oil fatty acid arginine.

The content of the component (E) in the skin cleanser composition of the present invention is not particularly limited, and is preferably 0.2 to 10.0% by mass, more preferably 1.0 to 8.0% by mass, based on 100% by mass of the skin cleanser composition of the present invention. When the content ratio is 0.2% by mass or more, the foaming property of the skin cleanser and the refreshing feeling after cleansing are more excellent, and the feeling of tightness after cleansing can be further suppressed. When the content ratio is 10.0% by mass or less, the sticky feeling can be suppressed, and the preparation stability is excellent. The content ratio of the component (E) is the total of the content ratios of all the 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) described above within a range not to impair the object of the present invention. The other components are not particularly limited, and examples thereof include components generally used in cosmetics and quasi drugs. Specific examples thereof include lower alcohols such as ethanol; oily components such as oils and fats, polyhydric alcohols, higher alcohols, ester oils, vegetable oils, and hydrocarbon oils; a surfactant other than the component (A) and the component (E); thickeners such as hydroxymethyl cellulose, hydroxypropyl methylcellulose, polysaccharide thickeners, and the like; a humectant; a bactericide; a pearlizing agent; a matting agent; glycyrrhizic acid and its salt as anti-inflammatory agent; cooling agents such as menthol; phosphoric acid and its salts, citric acid and its salts, lactic acid and its salts, sodium hydroxide, triethanolamine and other pH regulators; a fragrance; an ultraviolet absorber; an antioxidant; metal ion blocking agents (chelating agents); a film-forming polymer compound other than the component (C); powder; a pigment; a pigment; vitamins; amino acids; an astringent; a whitening agent; an animal or plant extract; an acid; alkali, and the like.

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 in consideration of the balance with the amount of the component (a) without impairing the stability. In addition, the moisture retention after cleaning is further improved. The polyhydric alcohol may be used alone or in combination of two or more.

As the polyol, known or conventional polyols used as moisturizers of cosmetic materials can be used. Specific examples of the polyhydric alcohol include glycerin, concentrated glycerin, diglycerin, polyglycerol, ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, 1, 3-butanediol, glucose, maltose, maltitol, sucrose, mannitol, sorbitol, 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-octanediol, and the like.

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

The skin cleanser composition of the present invention may further contain other surfactants in addition to the component (a) and the component (E). When the other surfactant is contained, it functions as a foaming agent or a viscosity modifier during foaming. Examples of the other surfactants include nonionic surfactants, anionic surfactants other than the components (a) and (E), cationic surfactants, and amphoteric surfactants. The other surfactants may be used alone or in combination of two or more.

Examples of the nonionic surfactant include sorbitan fatty acid esters, glycerin fatty acid esters, and alkylene oxide adducts thereof, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene alkylbenzaldehyde condensates, polyoxyethylene sterols and derivatives thereof, polyoxyethylene lanolin and derivatives thereof, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, and polyoxyethylene castor oil.

Examples of the sorbitan fatty acid ester include sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monopalmitate, sorbitan monolaurate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquistearate, sorbitan sesquioleate, sorbitan sesquiisostearate, and sorbitan coconut oil fatty acid ester. Examples of the alkylene oxide adduct of a sorbitan fatty acid ester include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan monolocotic fatty acid ester, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate.

The glycerin fatty acid ester includes any one of a monoglyceride and a polyglycerin fatty acid ester. Examples of the monoglyceride fatty acid ester include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monobehenate, glyceryl monooleate, glyceryl monocerucate, glyceryl sesquioleate, glyceryl distearate, glyceryl diisostearate, and glyceryl dianhydronate. Examples of the polyglycerin fatty acid ester include polyglycerin fatty acid esters having a polymerization degree of 2 to 10 such as a monoglyceride of a fatty acid ester of a monoglyceride of a fatty acid having a polymerization degree of 2 to 10, such as diglycerol monocaprylate, decaglycerol monocaprylate, hexaglycerol monolaurate, decaglycerol monolaurate, poly (4 to 10) glycerol monolaurate, decaglycerol monomyristate, decaglycerol monostearate, decaglycerol monoisostearate, poly (2 to 10) glycerol monostearate, diglycerol monooleate, hexaglycerol monooleate, diglycerol sesquioleate, poly (2 to 10) glycerol diisostearate, poly (6 to 10) glycerol distearate, diglycerol triisostearate, and poly (10) glycerol tristearate. Examples of the alkylene oxide adduct of a glycerin fatty acid ester include polyoxyethylene glycerin monostearate, polyoxyethylene glycerin monooleate, and polyoxyethylene glycerin mono (caprylic/capric) ester.

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

The polyoxyalkylene fatty acid ester includes any one of a polyoxyalkylene mono-fatty acid ester and a polyoxyalkylene di-fatty acid ester. Examples of the polyoxyalkylene monofatty acid ester include polyethylene glycol monofatty acid esters such as polyethylene glycol monooleate, polyethylene glycol monostearate, and polyethylene glycol monolaurate; propylene glycol mono fatty acid esters such as propylene glycol monostearate, propylene glycol monolaurate and propylene glycol monooleate.

Examples of the polyoxyalkylene di-fatty acid ester include polyethylene glycol di-fatty acid esters such as polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, polyethylene glycol distearate, polyethylene glycol diisostearate, and polyethylene glycol dibehenate.

The nonionic surfactant is preferably a glycerin fatty acid ester having 12 or less carbon atoms of a fatty acid, or an alkylene oxide adduct of a glycerin fatty acid ester having 12 or less carbon atoms of a fatty acid, from the viewpoint of imparting a cleansing effect to the detergent composition without impairing the performance of the detergent composition. Hereinafter, a glycerin fatty acid ester having 12 or less carbon atoms of a fatty acid may be referred to as "component (F)", and an alkylene oxide adduct of a glycerin fatty acid ester having 12 or less carbon atoms of a fatty acid may be referred to as "component (G)". Examples of the component (F) include polyglycerin fatty acid esters such as polyglycerin caprylate and polyglycerin laurate. Further, as the component (G), for example, polyoxyethylene glyceryl mono (caprylic/capric) ester having an average molar number of addition of ethylene oxide of 6 to 8, and the like can be mentioned.

The content of the component (F) and/or the component (G) in the nonionic surfactant is not particularly limited in order to provide a makeup removing effect without impairing the performance of the cleansing composition, and is preferably 0.5 to 10.0% by mass, more preferably 0.8 to 5.0% by mass, based on 100% by mass of the skin cleansing composition of the present invention. When the content ratio is 0.5% by mass or more, a sufficient makeup removing effect can be obtained. When the content ratio is 10.0% by mass or less, the makeup removing effect is exhibited without impairing foamability and foam quality, and the storage stability is excellent.

In addition, the content of the nonionic surfactant other than the component (F) and the component (G) in the nonionic surfactant is not particularly limited, and 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 cleansing composition of the present invention. When the content ratio is within the above range, the stability of the composition is excellent.

Examples of the bactericide include isopropyl methylphenol, benzalkonium chloride, hinokitiol, triclosan, dipotassium glycyrrhizinate, and salicylic acid. Among them, isopropyl methylphenol and salicylic acid are preferable, and isopropyl methylphenol is more preferable. The bactericide may be used alone or in combination of two or more.

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

The skin cleansing composition of the present invention is not particularly limited, and can be produced by a known or conventional method. For example, the above-mentioned components may be mixed and produced using an emulsifying vessel.

The skin cleanser composition of the present invention is a composition for applying on the skin (skin) to clean the skin. The site to which the skin cleanser composition of the present invention is applied is not particularly limited, and examples thereof include the face (e.g., forehead, eye periphery, canthus, cheek, mouth, etc.), arms, elbows, back of the hand, fingertips, feet, knees, heels, neck, underarms, back, etc. Among them, the skin cleansing composition of the present invention is preferably used for the face from the viewpoint of having cleansing performance equivalent to that of a conventional cleansing agent containing a scrub agent and a peeling-off type cleansing agent but causing less burden on the skin.

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

The skin cleanser composition of the present invention can be applied to various formulations, and is not particularly limited, but is preferably in the form of cream or emulsion. When the component (B1) is contained, the skin cleanser composition of the present invention can be in the form of cream without causing aggregation of the component (B1). When the component (B2) is contained, the skin cleansing composition of the present invention is particularly excellent in foaming easiness when it is in the form of cream or emulsion. The skin cleanser composition of the present invention may be in the form of a container filled with the skin cleanser composition of the present invention. Examples of the container include a pump container and a tube container.

In the skin cleansing composition of the present invention, when a higher fatty acid and/or a salt thereof [ component (a) ] is used at a specific ratio in a composition containing water [ component (D) ] as a medium and fibrous cellulose [ component (B1) ] is used in combination at a specific ratio, the component (B1) is uniformly dispersed without being aggregated, and therefore, the skin cleansing composition can have a small burden on the skin during cleansing and can have a cleansing performance equivalent to that of a conventional cleansing agent containing a scrub agent or a peeling-off type cleansing agent without using a scrub agent or the like. Further, when defatted rice bran [ component (B2) ] is used in combination at a specific ratio, it is presumed that the shape of component (B2) and component (B2) "defatted" greatly affect the use of defatted rice bran, and therefore, the feeling of frostiness and tightness can be suppressed, the burden on the skin is small, and the cleansing performance equivalent to that of a conventional cleanser containing a frosting agent or a peeling type cleanser can be obtained without using a frosting agent or the like. Further, by blending the cationic polymer [ component (C) ] at a specific ratio, a film of the polymer is formed on the skin after cleaning the skin to cover the skin, thereby providing excellent smoothness.

Examples

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. The amounts shown in the tables are the amounts of the respective components (i.e., the amounts of the effective components in the respective raw materials, so-called pure components), and are expressed as "% by mass" unless otherwise specified. Further, potassium hydroxide was added to adjust the pH to 10.0.

Examples 1 to 8 and comparative examples 1 to 8

The skin cleanser compositions of examples and comparative examples were prepared by a conventional method using the components (a) to (E) and other components) shown in the table.

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

< ingredient (A) >

Lauric acid: under the trade name "EDENOR C12-99" (manufactured by Emery Oleochemicals)

Myristic acid: under the trade name "EDENOR C14-99" (manufactured by Emery Oleochemicals)

Palmitic acid: trade name "EDENOR C16-98 MY" (manufactured by Emery Oleochemicals) stearic acid: under the trade name "EDENOR C18-98 MY" (manufactured by Emery Oleochemicals)

< ingredient (B1) >

Fibrous cellulose: trade name "VITACEL CS300 FC" (manufactured by Rettenmaier Co., Ltd.)

< ingredient (B2) >

Degreasing rice bran: a trade name of "defatted rice bran" (manufactured by oryza oil chemical Co., Ltd.) having a particle diameter of 180 μm or less: 95% by mass or more

< ingredient (C) >

Polyquaternium-7: "Marcoat 550 PR" (manufactured by LUBRIZOL Co., Ltd.)

< ingredient (E) >

Coconut oil fatty acid arginine: trade name "Aminosoap AR-12" (manufactured by Weijisu health supply Co., Ltd.)

< ingredient (F) >

Polyglycerol-3 octanoate: trade name "TEGO Cosmo P813" (manufactured by Evonik Nutrition & Care GmbH)

< ingredient (G) >

PEG-6 (caprylic/capric) glycerides: polyoxyethylene (caprylic/capric) glyceride, commercially available from Kyowa Fine Chemicals Co., Ltd

< other ingredients >

Glyceryl monostearate: trade name "CUTINA GMS-V" (manufactured by BASF corporation)

Polysorbate 65: trade name "RHEODOL TW-S320V" (made by Kao corporation)

Peach pit: the trade name is "PS grid G # 60-80" (manufactured by Nature Meijian Co., Ltd.), the particle diameter is 180 μm or less: 90% by mass or more

Corn cob: trade name "CR grid G # 60-80" (manufactured by Nature Meijian Co., Ltd.), and particle diameter of 180 μm or less: 90% by mass or more

Apricot seeds: the trade name "AP grid spherical G # 60-80" (manufactured by Nature Meijian Co., Ltd.), the proportion of the particle diameter of 180 μm or less: 90% by mass or more

Walnut shell particles: the trade name is "WN grid G # 60-80" (manufactured by Nature Meijian Co., Ltd.), the particle size is 180 μm or less: 90% by mass or more

(evaluation)

Each of the skin cleanser compositions obtained in examples and comparative examples was evaluated as follows. The evaluation results are shown in the table.

(test example 1: detergency)

About 0.5g of the skin cleanser composition was taken out to the palm of the hand, and warm water was added thereto, and the skin cleanser composition was rubbed with both hands to foam the skin for cleansing. Next, the cleaning performance of the skin cleansing composition after the skin cleansing composition was sufficiently rinsed with warm water was evaluated, and the cleaning power (removal performance of sebum dirt) was evaluated according to the following criteria.

[ evaluation criteria for cleaning ability ]

A: has the same cleaning performance as that of a detergent containing a polishing agent and a peeling-off type detergent

B: has the same cleaning performance as that of a cleaning agent containing a polishing agent and a peeling-off type cleaning agent, but is inferior to A

C: the cleaning agent is inferior to the cleaning agent and peeling type cleaning agent containing abrasive

(test example 2: smoothness)

About 0.5g of the skin cleanser composition was taken out to the palm of the hand, and warm water was added thereto, and the skin cleanser composition was rubbed with both hands to foam the skin for cleansing. Next, the skin cleanser composition was rinsed thoroughly with warm water, and after the face was wiped with a towel, the smoothness was evaluated according to the following criteria.

[ evaluation criteria of smoothness ]

A: when contacting the skin, the skin feels smooth and does not get stuck

B: feel smooth when touching the skin, but is inferior to A

C: can be stuck when contacting the skin and does not feel smooth

(test example 3: sense of tightness)

About 0.5g of the skin cleanser composition was taken out to the palm of the hand, and warm water was added thereto, and the skin cleanser composition was rubbed with both hands to foam the skin for cleansing. Next, the skin cleanser composition was rinsed thoroughly with warm water, and after the face was wiped with a towel, the feeling of tightness was evaluated by the following criteria.

[ evaluation criteria for the feeling of tightness ]

A: no sense of tightness

B: a slight feeling of tightness was felt, but was acceptable

C: feeling of tightness

(test example 4 frosted feeling)

About 0.5g of the skin cleansing composition was taken out to the palm of the hand, warm water was added thereto, and the skin was washed by rubbing with both hands to foam the skin, and the feeling of physical stimulation (frosty feeling) of the particles on the skin at the time of washing was evaluated in accordance with the following criteria.

[ evaluation criteria for frosty feel ]

A: the skin was not burdened with a frosty feel

B: feeling the burden of frosty feeling on the skin

(test example 5: cleansing power)

About 0.5g of the skin cleanser composition prepared in examples 1 to 3 and comparative examples 1 to 2 was taken out to the palm of the hand, warm water was added thereto, and the hand was rubbed to foam the skin cleanser composition, thereby washing the face with foundation. Next, the skin cleansing composition was rinsed thoroughly with warm water, and after the face was wiped with a towel, the removal force of makeup (makeup removal force) was evaluated according to the following criteria.

[ evaluation criteria for cleansing force ]

A: the foundation completely comes off

B: about half of the foundation comes off

C: the foundation did not fall off completely

(test example 6: foamability)

The skin cleanser compositions prepared in examples 4 to 8 and comparative examples 3 to 8 were each prepared by taking out about 0.5g of the skin cleanser composition to the palm of the hand, adding warm water, and rubbing the palm with both hands to foam the skin cleanser composition, and the foamability at the time of foaming was evaluated by the following criteria.

[ evaluation criteria for foaming Properties ]

A: very quick bubbling

B: quick foaming

C: slow foaming

(test example 7 foam)

With respect to the skin cleanser compositions produced in examples 4 to 8 and comparative examples 3 to 8, the foam quality of the foam produced by foaming the skin cleanser composition in test example 6 was evaluated by the following criteria.

[ evaluation criteria for bubble quality ]

A: the texture of the foam is very fine and smooth

B: the foam has fine texture

C: the texture of the foam is rough

TABLE 1

In the case of using the skin cleanser composition of the present invention (examples 1 to 3) containing the component (B1) as the component (B), it was evaluated that the skin cleanser composition had the same cleansing performance as the conventional scrub agent-containing cleanser and peeling cleanser, and the skin cleanser had a small burden on the skin and had excellent smoothness of the skin after cleansing. When the component (E) is contained, it is evaluated that the non-tight feeling is more excellent (examples 1 and 3), and when the components (F) and (G) are contained, it is evaluated that the makeup removing ability is more excellent (example 3). On the other hand, when the component (B1) was not blended (comparative example 1), the cleaning force was evaluated to be inferior to that of the scrub agent-containing cleaning agent and the release type cleaning agent. In addition, in the case where the component (C) was not blended (comparative example 2), the smoothness of the skin after cleansing was evaluated to be poor.

When the skin cleansing compositions of the present invention (examples 4 to 8) containing the component (B2) as the component (B) were used, the skin cleansing compositions were evaluated to have the same cleansing properties as conventional scrub agent-containing cleansers and release-type cleansers, and were not provided with a feeling of tightness after cleansing and a feeling of scrub during cleansing, and were less likely to cause a burden on the skin. In addition, it was evaluated that the smoothness of the skin after cleansing was excellent, and the foamability and the foam quality were also excellent. On the other hand, when the component (B2) was not blended (comparative example 3), the cleaning force was evaluated to be inferior to that of the scrub agent-containing cleaning agent and the release type cleaning agent. In addition, when the content ratio of the component (B2) was large (comparative example 4), it was evaluated that a tight feeling after cleansing was felt and a large load was imposed on the skin. In addition, when a material predicted to exhibit the same effect as the component (B2) was used instead of the component (B2) (comparative examples 5 to 8), it was evaluated that the feeling of frostiness during cleansing was felt, and the burden on the skin was large.

Further, formulation examples of the skin cleanser composition of the present invention are shown below.

(formulation example 1)

(formulation example 2)

(formulation example 3)

(formulation example 4)

(formulation example 5)

(formulation example 6)

(formulation example 7)

(formulation example 8)

Claims

1. A skin cleanser composition characterized by comprising the following component (A), the following component (B1) and/or the following component (B2), the following component (C) and the following component (D), wherein the content ratio of the component (A) is 5.0-50.0 mass%, the content ratio of the component (B1) and/or the component (B2) is 0.1-10.0 mass%, and the content ratio of the component (C) is 0.05-2.0 mass%,