TW201726903A - Skin cleanser composition - Google Patents

Abstract

A skin cleanser composition comprising the following components (A), (B), (C) and (D): (A) 0.05 to 6% by mass of hydrophobic silica; (B) 0.6 to 3.5% by mass of a water-soluble polymer; (C) 1 to 15% by mass of an anion surfactant; and (D) 50 to 90% by mass of a polyol or a polyol ether.

Description

Skin detergent composition

The present invention relates to a skin cleanser composition.

In the past, the dirt in the pores has caused considerable trouble to women, and for this kind of trouble, a large number of products have been developed to remove the dirt in the pores. For example, Patent Document 1 discloses a skin cosmetic containing a water-swellable clay mineral, a polyhydric alcohol, and a nonionic surfactant, which generates heat when mixed with water to expand pores, and softens the solid fat in the pores to adsorb it. It is a water-swellable clay mineral and is washed away with a nonionic surfactant. Patent Document 2 describes a cosmetic containing a polyol, a carbon, or a carboxyvinyl polymer to reduce the influence on the skin and remove acne. Patent Document 3 describes a thermal cleansing agent which contains propylene glycol in a specific polyol. In addition to the cleansing properties of the pores, the nonionic surfactant is excellent in the feeling of use such as stretching and rinsing properties. Further, Patent Document 4 describes a detergent composition containing a polyol, an anionic surfactant, and a tackifier, which is excellent in the cleansing property against pores and blackheads, and does not cause a feeling of tightness or roughness to the skin after washing. It has a good sense of use.

(Patent Document 1) Japanese Patent Laid-Open Publication No. 2000-256160

(Patent Document 2) Japanese Patent Laid-Open Publication No. 2006-96688

(Patent Document 3) Japanese Patent Laid-Open Publication No. 2007-269719

(Patent Document 4) Japanese Patent Laid-Open No. Hei 10-338628

The present invention relates to a skin detergent composition comprising the following components (A), (B), (C) and (D): (A) hydrophobic cerium oxide 0.05 to 6 mass%; (B) The water-soluble polymer is 0.6 to 3.5% by mass; (C) the anionic surfactant is 1 to 15% by mass; and (D) the polyol or polyol ether is 50 to 90% by mass.

Due to the high demand characteristics of the market in recent years, the conventional skin detergent composition must be further improved for the drip in use. Further, when the skin detergent composition is applied to the face, although a certain viscosity or more is required, even if the viscosity of the skin detergent composition is increased, the viscosity at a high temperature is lowered, so that the viscosity at room temperature is The ratio of the difference in viscosity at a high temperature becomes large, and the difference in properties at each temperature becomes large, and there is a problem in storage stability. In addition, in the case where water-insoluble particles or the like are contained in order to obtain the actual feeling of washing, the particles are precipitated in the high-temperature-preserved product, and it is found that there is a problem in stability.

The present invention relates to a method of suppressing a decrease in viscosity at a high temperature and suppressing a decrease in viscosity at a high temperature, thereby reducing a ratio of a difference in viscosity between a room temperature and a high temperature, and having excellent storage stability and satisfying the detergency, particularly Washing pigment for the pores' detergency, foaming and rinsing properties.

The present inventors have found that a water-soluble polymer, an anionic surfactant, a polyol or a polyol ether, and a hydrophobic cerium oxide are combined in a specific ratio. When used, a skin cleansing composition that solves the above problems can be obtained.

The skin detergent composition of the present invention suppresses the dripping at the time of use and suppresses the decrease in viscosity at a high temperature, so that the difference in properties at room temperature and high temperature is small, the storage stability is excellent, and the detergency, especially It has excellent detergency, foaming and rinsing properties for pores.

The hydrophobic cerium oxide of the component (A) used in the present invention means one or more hydrophobic fumed silica. The gas phase cerium oxide is formed in a hydrogen flame and is produced in accordance with the reaction of SiCl ₄ + 2H ₂ + 2O ₂ → SiO ₂ + 4 HCl. The untreated gas phase cerium oxide is based on a hydrophilic sterol and a decyloxy group on the surface. The hydrophobic gas phase cerium oxide is formed by a chemical reaction between a surface sterol and a decyloxy group and a hydrophobic modifying compound. Examples of the hydrophobic modifying compound include dimethyl fluorenyl group, trimethyl decyloxy group, and hydrazine, and dimethyl thiolated cerium oxide, thiolated cerium oxide, and fluorene sulfhydryl group are respectively produced. The cerium oxide is preferably dimethyl guanidinated cerium oxide from the viewpoint of suppressing dripping at the time of use and lowering the viscosity at a high temperature.

Further, the "viscosity reduction at high temperature" is a rate of change of the difference in viscosity measured by the skin detergent composition at 40 ° C and 30 ° C [(viscosity (30 ° C)) - (viscosity (40 ° C)) ] / [viscosity (30 ° C)] indicates that the smaller the rate of change, the smaller the difference in the properties of the skin detergent composition at room temperature and high temperature, and the higher the storage stability.

The hydrophobic cerium oxide is preferably from 5 to 30 nm, more preferably from 7 to 16 nm, from the viewpoint of suppressing the drop at the time of use and the viscosity at a high temperature. Further, the hydrophobic silicon dioxide based upon inhibiting and down by a droplet used, the viscosity at a high temperature from the viewpoint of reducing the specific surface area is preferably 80 ~ 400m ² / g, more preferably 100 ~ 380m ² / g. Further, it is more preferably 120 to 330 m ² /g. Further, the specific surface area is a value measured by the BET method.

Examples of the hydrophobic silicon dioxide can be used, for example, HDK H15 (specific surface ^{area: 150m 2 / g), HDK} H18 ( specific surface ^{area: 200m 2 / g), HDK} H20 ( specific surface ^{area: 200m 2 / g), HDK} H30 ( ratio Surface area: 300 m ² /g) (The above is manufactured by Asahi Kasei WACKER SILICONE Co., Ltd.) and the like.

Further, it is considered that the component (A) suppresses the decrease in the viscosity at the time of use and the high temperature by the interaction with the component (B).

The component (A) may be used in combination of at least one kind or two or more kinds thereof, and the content is 0.05% by mass or more in the total composition from the viewpoint of suppressing the drop of the liquid at the time of use and the viscosity at a high temperature. It is preferably 0.3% by mass or more, more preferably 0.8% by mass or more, and is 6% by mass or less, preferably 4.5% by mass or less, and more preferably 3% by mass or less from the viewpoint of improving foaming and rinsing properties. Further, the content of the component (A) is 0.05 to 6% by mass, preferably 0.3 to 4.5% by mass, more preferably 0.8 to 3% by mass based on the total composition.

In addition, the component (A) may be used in combination of at least one kind or two or more types, and the content is improved from the viewpoints of suppressing the drop of the liquid at the time of use and the viscosity at a high temperature, and improving the washing power against the pores. The total composition is 0.05% by mass or more, preferably 0.3% by mass or more, more preferably 0.8% by mass or more, and still more preferably 1.2% by mass or more; from the viewpoint of improving foaming, rinsing properties, and washing power to pores. In other words, it is 6 mass% or less, preferably 4.5 mass% or less, more preferably 3% by mass or less. Further, the content of the component (A) is 0.05 to 6% by mass, preferably 0.3 to 4.5% by mass, more preferably 0.8 to 3% by mass, still more preferably 1.2 to 3% by mass based on the total composition.

The skin detergent composition of the present invention may contain a powder other than the component (A) insofar as the effects of the present invention are not impaired.

In the powder other than the component (A), the content of the hydrophilic cerium oxide is such that the sag at the time of use is suppressed, the viscosity at a high temperature is lowered, and the skin detergent is removed from the container. From the viewpoint of the spouting property and the stretching when applied to the skin, the total composition is preferably 0.5% by mass or less, more preferably 0.1% by mass or less, still more preferably 0.01% by mass or less, and particularly preferably 0% by mass. %. Here, "substantially 0% by mass" means that it is inevitably contained.

The water-soluble polymer as the component (B) is not particularly limited as long as it is a user of the usual detergent composition, and examples thereof include an alkyl-modified carboxyvinyl polymer, polyvinyl alcohol, and polyvinylpyrrolidine. a vinyl-based water-soluble polymer such as a ketone; a polysaccharide such as Sanxian gum or guar gum is a water-soluble polymer; hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl Cellulose, cellulose carboxymethylcellulose, laureth-13PG hydroxyethyl cellulose, sodium stearyl PG hydroxyethyl cellulose sulfonate, cationized hydroxyethyl cellulose-2, etc. Water-soluble polymer; starch-based water-soluble polymer, such derivatives, and the like.

The water-soluble polymer of the component (B) is preferably a cellulose-based method for suppressing the drop of the liquid at the time of use and the viscosity at a high temperature. Preferably, it is at least one selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose, and more preferably at least one selected from the group consisting of hydroxypropyl cellulose and hydroxypropyl methyl cellulose. More than one, more preferably hydroxypropylcellulose.

The number average molecular weight of the cellulose-based water-soluble polymer is preferably from 100,000 to 1,200,000, more preferably from 300,000 to 1,000,000, and still more preferably 600,000 from the viewpoint of suppressing the drop at the time of use and the viscosity at a high temperature. 950,000, especially good 750,000~930,000. Further, the measurement of the number average molecular weight was carried out by gel permeation chromatography (GPC). Specifically, N-methylpyrrolidone was used as a solvent, and a polystyrene gel was used, and the converted molecular weight calibration curve obtained in advance from the composition curve of standard monodisperse polystyrene was used. GPC device is used HLC-8220GPC (manufactured by Tosoh Corporation).

Further, as the hydroxypropylcellulose, commercially available products such as HPC-M (number average molecular weight: 620,000) and HPC-H (quantitative average molecular weight: 910,000) (above, manufactured by Nippon Soda Co., Ltd.) can be used.

The component (B) may be used in combination of at least one kind or two or more kinds thereof, and the content is 0.6% by mass or more in the total composition from the viewpoint of suppressing the drop of the liquid at the time of use and the viscosity at a high temperature. It is preferably 1.2% by mass or more, more preferably 1.5% by mass or more, and is 3.5% by mass or less, preferably 2.8% by mass or less, and more preferably 2.2% by mass or less from the viewpoint of improving foaming and rinsing properties. Further, the content of the component (B) is from 0.6 to 3.5% by mass, preferably from 1.2 to 2.8% by mass, more preferably from 1.5 to 2.2% by mass, based on the total composition.

In addition, the component (B) may be used in combination of at least one type or two or more types, and the content is improved from the viewpoint of suppressing the drop of the liquid at the time of use and the viscosity at a high temperature, and improving the washing power against the pores. In the total composition, it is 0.6% by mass or more, preferably 1.2% by mass or more, and more preferably 1.5% by mass or more. From the viewpoint of improving foaming, rinsing property, and washing power to pores, it is 3.5% by mass or less. It is preferably 2.8 mass% or less, more preferably 2.2 mass% or less, still more preferably 2.0 mass% or less. Further, the content of the component (B) is 0.6 to 3.5% by mass, preferably 1.2 to 2.8 mass%, more preferably 1.2 to 2.2 mass%, still more preferably 1.2 to 2.0 mass%, and still more preferably 1.5 in the total composition. ~2.0% by mass.

In the present invention, the mass ratio [(A)/(B)] of the component (A) to the component (B) is suppressed by the drop of the liquid at the time of use, the viscosity at a high temperature is lowered, and the foaming and rinsing properties are improved. From the viewpoint, it is preferably 0.04 or more, more preferably 0.2 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, and particularly preferably 1.0 or more; preferably 3.5 or less, more preferably 2.4 or less, still more preferably 2.0 or less, and more preferably Good 1.6 or less, especially good 1.35 or less. Further, the mass ratio [(A)/(B)] of the component (A) to the component (B) is preferably 0.04 to 3.5, more preferably 0.2~2.4, more preferably 0.5~2.0, better 0.7~1.6, especially good 1.0~1.35.

The anionic surfactant of the component (C) is not limited as long as it is a user of a usual detergent composition, and examples thereof include a fatty acid salt, an alkyl sulfate, a polyoxyalkylene alkyl sulfate, and a polyoxygen extension. Alkyl alkenyl ether sulfate, alkyl sulfosuccinate salt, polyoxyalkylene sulfosuccinate alkyl ester, α-olefin sulfonate, alkyl ether carboxylate, polyoxyalkylene An alkyl alkyl ether carboxylate, an N-decylamino acid salt, an N-decylalkyl taurate or the like.

Further, the anionic surfactant of the component (C) is not limited as long as it is a user of a usual detergent composition, and examples thereof include an alkyl sulfate, a polyoxyalkylene alkyl sulfate, and a polyoxyalkylene. Sulfate salt of alkynyl ether sulfate, etc., alkyl sulfosuccinate, polyalkylene alkyl sulfosuccinate, α-olefin sulfonate, N-decylalkyl a sulfonate such as a taurate salt, a carboxylate such as a fatty acid salt, an alkyl ether carboxylate or a polyoxyalkylene alkyl carboxylate, or an amino acid such as an N-decylamino acid salt. From the viewpoint of improving the detergency, foaming, and rinsing properties of the pores, it is preferably at least one selected from the group consisting of a sulfate salt, a sulfonate, and a carboxylate, and more preferably a sulfate. At least one or more of a salt and a carboxylate are more preferably at least one selected from the group consisting of carboxylates.

Among these, from the viewpoint of improving foaming and rinsing properties, it is preferably at least one selected from the group consisting of a fatty acid salt and an alkyl ether carboxylate, and more preferably a fatty acid salt selected from the general formula (1). At least one or more of the alkyl ether carboxylates represented by the general formula (2).

Moreover, from the viewpoint of improving the detergency, foaming, and rinsing properties of the pores, it is preferred to use at least one selected from the group consisting of the fatty acids represented by the general formula (1) and selected from the general formula (2). At least one or more of alkyl ether carboxylates.

[Chemical 1] R ¹ -COOY (1)

(wherein R ¹ represents an alkyl or alkenyl group having a linear or branched chain of 9 to 21 carbon atoms, and Y represents an alkali metal, an alkaline earth metal, ammonium (NH ₄ ⁺ ), an organic ammonium or a basic amino acid. .)

In the general formula (1), R ¹ is an alkyl group or an alkenyl group having 9 to 21 carbon atoms, and may be any of a straight chain or a branched chain, and the carbon number is improved from the viewpoint of improving foaming and rinsing properties. Good for 11~21, better 11~17, better 11~15, and better 11~13. Further, from the same viewpoint, an alkyl group is preferred, and a linear chain is preferred.

Further, as a general formula (1), from the viewpoint of improving foaming and rinsing properties, it is preferred to use a carbon number of 11 to 13.

In the general formula (1), examples of Y include an alkali metal such as sodium or potassium; an alkaline earth metal such as calcium or magnesium; ammonium (NH ₄ ⁺ ); an organic compound derived from an alkanolamine such as monoethanolamine, diethanolamine or triethanolamine. Ammonium; a basic amino acid such as L-arginine. Among these, from the viewpoint of improving foaming and rinsing properties, an alkali metal is preferred.

R ² -O-(CH ₂ CH ₂ O) _n -CH ₂ -COOX (2)

(wherein R ² represents an alkyl or alkenyl group having 8 to 20 carbon atoms, n represents an average addition molar number of ethylene oxide, and represents an average of 0.5 to 10; X represents an alkali metal, an alkaline earth metal, Ammonium (NH ₄ ⁺ ), organic ammonium or basic amino acid.)

In the general formula (2), as R ² , the carbon number is preferably from 10 to 18, more preferably from 12 to 16, from the viewpoint of improving the washing power, foaming and rinsing properties of the pores. Further, from the same viewpoint, the alkyl group and the average addition molar number n of the ethylene oxide are preferably from 1 to 6.

Further, from the same viewpoint, R ^{2 is} preferably an alkyl group, more preferably a linear alkyl group. Further, from the same viewpoint, the average addition molar number n of ethylene oxide is preferably from 1 to 6.

Further, an alkyl ether carboxylic acid or the like described in JP-A-2013-53092 is preferred.

Further, X in the general formula (2) can be the same as Y in the general formula (1) of the component (C), and is preferably the same as Y.

The component (C) may be used in combination of at least one kind or two or more kinds thereof, and the content is 1% by mass or more, preferably 2.5 mass, from the viewpoint of improving the washing power and foaming of the pores. % or more, more preferably 4.2% by mass or more, and still more preferably 5.5% by mass or more; from the viewpoint of suppressing dripping at the time of use, lowering the viscosity at a high temperature, and improving rinsing properties, it is 15% by mass or less, preferably 12.5. The mass% or less, more preferably 10.5% by mass or less, and still more preferably 9.5 mass% or less. Further, the content of the component (C) is from 1 to 15% by mass, preferably from 2.5 to 12.5% by mass, more preferably from 4.2 to 10.5% by mass, still more preferably from 5.5 to 9.5% by mass, based on the total composition. Further, the content of the component (C) in the composition is the content in terms of an acid.

In addition, the component (C) may be used in combination of at least one kind or two or more kinds thereof, and the content is 1% by mass or more, preferably from 1% by mass or more, from the viewpoint of improving the cleaning power and foaming of the pores. 2.5% by mass or more, more preferably 4.2% by mass or more, and still more preferably 5.5% by mass or more; from the viewpoint of suppressing dripping at the time of use, lowering the viscosity at a high temperature, and improving rinsing properties, it is 15% by mass or less. It is preferably 12.5 mass% or less, more preferably 10.5% by mass or less, still more preferably 9.5 mass% or less, still more preferably 8.0 mass% or less. Further, the content of the component (C) is from 1 to 15% by mass, preferably from 2.5 to 12.5% by mass, more preferably from 4.2 to 10.5% by mass, still more preferably from 5.5 to 9.5 % by mass, even more preferably 5.5. ~8.0% by mass. Further, the content of the component (C) in the composition is the content in terms of an acid.

a polyol or a polyol ether of the component (D), if it is a usual detergent group The user of the product is not limited, and examples thereof include 1,3-butanediol, propylene glycol, isoprene glycol, hexanediol, 1,2-pentanediol, diethylene glycol, and 2-ethyl-1. , 3-hexanediol, dipropylene glycol, 1,3-propanediol, polyols such as polyethylene glycol having a number average molecular weight of 600 or less; diethylene glycol monoethyl ether, ginseng (ethoxyethoxyethyl) a polyol ether such as a phosphate ester.

Among these, from the viewpoint of improving the detergency of the pores, it is preferably selected from the group consisting of 1,3-butanediol, propylene glycol, dipropylene glycol, polyethylene glycol having a number average molecular weight of 600 or less, and diethyl phthalate. At least one or more of alcohol monoethyl ether; more preferably at least one selected from the group consisting of 1,3-butanediol and polyethylene glycol having a number average molecular weight of 500 or less; and more preferably selected from the group consisting of 1,3-butyl At least one or more of an alcohol having a number average molecular weight of 300 to 450; more preferably, both.

Further, among these, from the viewpoints of improving the detergency, foaming, and rinsing properties of the pores and suppressing the drooping at the time of use, it is preferably selected from the group consisting of 1,3-butanediol and propylene glycol. And dipropylene glycol, at least one or more of polyethylene glycol having a number average molecular weight of 600 or less, and diethylene glycol monoethyl ether; more preferably polyethylene glycol selected from the group consisting of 1,3-butanediol and having a number average molecular weight of 500 or less. At least one or more of the alcohols; more preferably at least one selected from the group consisting of 1,3-butanediol and polyethylene glycol having a number average molecular weight of 300 to 450; more preferably, both.

At least one or two or more of the components (D) may be used in combination, and the content is 50% by mass or more, preferably 56% by mass or more, based on the total composition, from the viewpoint of improving the cleaning power to the pores. More preferably, it is 61% by mass or more; it is 90% by mass or less, preferably 80% by mass or less, and more preferably 75% by mass or less. Further, the content of the component (D) is 50 to 90% by mass, preferably 56 to 80% by mass, more preferably 61 to 75% by mass based on the total composition.

Further, the component (D) may be used in combination of at least one kind or two or more types. The content of the total composition is 50% by mass or more, preferably 56% by mass or more, more preferably 61% by mass or more, and 90% by mass or less, from the viewpoint of the detergency, foaming, and rinsing properties of the pores. It is preferably 80% by mass or less, more preferably 75% by mass or less, still more preferably 68% by mass or less. Further, the content of the component (D) is 50 to 90% by mass, preferably 56 to 80% by mass, more preferably 61 to 75% by mass, still more preferably 61 to 68% by mass based on the total composition.

In the component (D), the ratio (% by mass) of the total amount of the 1,3-butanediol to the polyethylene glycol having a number average molecular weight of 600 or less is based on the viewpoint of improving the foaming and rinsing properties. The component (D) is preferably 90 to 100% by mass, more preferably 95% by mass to 100% by mass, and most preferably 100% by mass.

Further, in the component (D), the ratio (% by mass) of the total amount of the 1,3-butanediol to the polyethylene glycol having a number average molecular weight of 600 or less is based on the detergency, foaming and rinsing of the pores. From the viewpoint of the improvement of the properties, it is preferably from 90 to 100% by mass, more preferably from 95 to 100% by mass, more preferably from 100% by mass, based on the component (D). Here, the term "substantially 100% by mass" means a component other than polyethylene glycol having a number average molecular weight of 600 or less inevitably containing 1,3-butanediol or a component other than the component (D) (D). ).

In the present invention, the mass ratio [(D)/((A)+(B))))) of the component (D) to the total mass of the components (A) and (B) is suppressed by the drip and lift of the use. From the viewpoint of foaming and rinsing properties, it is preferably 8 or more, more preferably 11 or more, still more preferably 12.5 or more, preferably 42 or less, more preferably 35 or less, still more preferably 33 or less. Further, the mass ratio [(D) / ((A) + (B)))) of the total mass of the component (D) to the components (A) and (B) is preferably 8 to 42, more preferably 11 to 35, Even better 12.5~33.

Further, in the present invention, the mass ratio [(D)/((A)+(B))))) of the total mass of the component (D) to the components (A) and (B) is suppressed by the drip when used. Improve the washing of pores From the viewpoint of force, foaming, and rinsing properties, it is preferably 8 or more, more preferably 11 or more, still more preferably 12.5 or more, still more preferably 16 or less; preferably 42 or less, more preferably 35 or less, still more preferably 33 or less. And better than 23 or less. Further, the mass ratio [(D) / ((A) + (B)))) of the total mass of the component (D) to the components (A) and (B) is preferably 8 to 42, more preferably 11 to 35, Better 12.5~33, and better 16~23.

The skin detergent composition of the present invention may further contain (E) a nonionic surfactant of HLB 10 to 20, which can improve the cleansing power and rinsing property of the pores.

The HLB of the nonionic surfactant of the component (E) is preferably HLB 11 to 18, more preferably HLB 12 to 16 from the viewpoint of improving the cleansing power and rinsing properties of the pores.

In the present invention, HLB is an index indicating a Hydrophilic-Lipohilic Balance, and in the present invention, a value calculated according to the following formula of Oda, Teramura, and the like is used.

The nonionic surfactant is not particularly limited as long as it is a usual detergent composition, and examples thereof include polyethylene glycol fatty acid ester, polyethylene glycol alkyl ether, and polyethylene glycol alkane. Phenyl phenyl ether, polyethylene glycol castor oil derivative, polyethylene glycol hardened castor oil derivative, polyethylene glycol sorbitan fatty acid ester, polyglycerin fatty acid ester, alkyl glyceryl ether, sucrose fat Acid esters, etc.

Among these, from the viewpoint of improving the detergency and rinsing properties of the pores, it is preferably selected from the group consisting of polyethylene glycol fatty acid esters, polyethylene glycol alkyl ethers, and polyethylene glycol sorbitan. At least one or more of the fatty acid esters are more preferably at least one selected from the group consisting of polyethylene glycol fatty acid esters and polyethylene glycol sorbitan fatty acid esters.

As the polyethylene glycol fatty acid ester, the carbon number of the alkyl group constituting the polyethylene glycol fatty acid ester is preferably from 10 to 18, more preferably from the viewpoint of improving the washing power and the rinsing property of the pores. 14. The average addition mole number of ethylene oxide is preferably from 10 to 24, more preferably from 8 to 18, still more preferably from 10 to 14, from the same viewpoint. Specifically, it is preferred to add a polyethylene glycol laurate having a molar number of 10 to 24, and the like. As a commercially available product, EMANONE 1112 (HLB13.7) (manufactured by Kao Corporation) or the like may be contained as polyethylene glycol (12) laurate.

As the polyethylene glycol sorbitan fatty acid ester, the carbon number of the alkyl group constituting the polyethylene glycol sorbitan fatty acid ester is preferably from the viewpoint of improving the washing power and the rinsing property of the pores. From 12 to 20, more preferably from 16 to 18, the average addition mole number of ethylene oxide is preferably from 6 to 24, more preferably from 16 to 22, still more preferably from 18 to 20, from the same viewpoint. Specifically, it is preferred to add polyethylene glycol stearate sorbitan or the like having an average molar number of 6 to 24. As a commercially available product, RHEODOL TW-S120 (HLB14.9) (manufactured by Kao Corporation) or the like may be contained as polyethylene glycol (20) sorbitan monostearate.

At least one or two or more of the above-mentioned components (E) may be used in combination, and the content is 5% by mass or more, preferably 10% by mass or more, based on the total composition, from the viewpoint of improving the cleaning power to the pores. It is more preferably 13% by mass or more; from the viewpoint of suppressing the decrease in viscosity at a high temperature and improving the rinsing property, it is preferably 25% by mass or less, more preferably 20% by mass or less, and still more preferably 17% by mass or less. Further, the content of the component (E) is 5 to 25% by mass, preferably 10 to 20% by mass, and more preferably 13 to 17% by mass based on the total composition.

In addition, the component (E) may be used in combination of at least one kind or two or more types, and the content is improved from the viewpoint of suppressing the decrease in viscosity at a high temperature and improving the detergency of the pores. The total composition is 5% by mass or more, preferably 10% by mass or more, and more preferably 13% by mass or more. From the viewpoint of suppressing dripping at the time of use, lowering the viscosity at a high temperature, and improving rinsing properties, it is preferred. 25 mass% or less, more preferably 20 mass% or less, still more preferably 17 mass% or less. Further, the content of the component (E) is 5 to 25% by mass, preferably 10 to 20% by mass, and more preferably 13 to 17% by mass based on the total composition.

In the present invention, the mass ratio [(C)/(E)] of the component (E) to the acid equivalent amount of the component (C) is improved from the viewpoint of improving the washing power, foaming, and rinsing properties of the pores. It is preferably 0.1 or more, more preferably 0.26 or more, still more preferably 0.32 or more, preferably 1.0 or less, more preferably 0.86 or less, still more preferably 0.75 or less. Further, the mass ratio [(C)/(E)] of the component (E) to the component (C) is preferably 0.1 to 1.0, more preferably 0.26 to 0.86, still more preferably 0.32 to 0.75.

In the present invention, the mass ratio [(C)/(E)] of the component (E) to the acid-converted amount of the component (C) is based on the viewpoint of suppressing the drop of the liquid at the time of use and the viscosity at a high temperature, and improving the pair. From the viewpoint of the detergency, foaming, and rinsing properties of the pores, it is preferably 0.1 or more, more preferably 0.26 or more, still more preferably 0.32 or more, still more preferably 0.40 or less; preferably 1.0 or less, more preferably 0.86 or less, and further More preferably 0.75 or less, and even more preferably 0.50 or less. Further, the mass ratio [(C)/(E)] of the component (E) to the component (C) is preferably 0.1 to 1.0, more preferably 0.26 to 0.86, still more preferably 0.32 to 0.75, still more preferably 0.40 to 0.50. .

The skin detergent composition of the present invention may further contain a component which is usually used for a detergent, for example, a surfactant other than the components (C) and (E), an oil component, an ethanol, a bactericide, and a component (D). Agents, colorants, touch enhancers, fragrances, anti-inflammatory agents, and the like.

The skin detergent composition of the present invention preferably contains (F) an amphoteric surfactant from the viewpoint of enhancing foaming.

Specifically, for example, a betaine type surfactant and an amino acid type interface activity may be mentioned. Agent, imidazoline type surfactant, amine oxide type surfactant, and the like. Among these, from the viewpoint of enhancing foaming, it is preferably at least one selected from the group consisting of a betaine type surfactant and an imidazoline type surfactant, more preferably a betaine type surfactant, and even more preferably It is at least one selected from the group consisting of alkyl guanamine propyl betaine and alkyl hydroxy sulfobetaine. As a commercially available product, AMPHITOL 20AB can be used as the guanamine propyl citrate laurate, and AMPHITOL 20HD (manufactured by Kao Co., Ltd.) or the like can be used as the lauryl hydroxy sulfobetaine.

The amphoteric surfactant of the component (F) may be used in combination of at least one kind or two or more kinds, and from the viewpoint of enhancing foaming, the content is 0.1% by mass or more, preferably 0.5% by mass or more based on the total composition. More preferably, it is 1% by mass or more; preferably 8% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less. Further, the content of the amphoteric surfactant of the component (F) is 0.1 to 8% by mass, preferably 0.5 to 5% by mass, and more preferably 1 to 3% by mass based on the total composition.

The fungicide is a user of a usual detergent composition, and examples thereof include triclosan, triclosan, and isopropylmethylphenol. From the viewpoint of enhancing the bactericidal effect on the skin, it is preferred. It is isopropylmethylphenol.

The skin detergent composition of the present invention preferably further contains (G) water-insoluble particles, which can improve the practical sensibility of washing during use. As the water-insoluble particles, a known product can be used, and water-insoluble particles having an average particle diameter of 50 to 500 μm are preferable.

Specific examples thereof include inorganic powders such as titanium oxide, talc, kaolin, bentonite, sodium chloride, cerium oxide, and mica titanium, or polyfluorene powder, silk powder, hemp fiber powder, cellulose or derivatives thereof, and the like. A saccharide or an organic polymer of a synthetic polymer such as polyethylene, polypropylene, oxidized polyethylene, ethylene acrylic acid copolymer, polystyrene, nylon or acrylic resin.

Further, a disintegrable granulated powder in which the above-mentioned water-insoluble particles are used as primary particles and a plurality of powders are bonded using a binder (bonding agent) may be used. The binder may, for example, be polyvinyl alcohol and/or a derivative thereof, a poly(meth)acrylic acid base salt, an alkali salt of a (meth) acrylate copolymer, or an acrylic acid/maleic acid copolymer. a synthetic product of an alkali salt, polyvinylpyrrolidone or the like; a semi-synthetic product of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxyalkyl cellulose, starch derivative, etc.; starch, seaweed, plant A natural polymer such as a viscous substance or protein.

Among these water-insoluble particles, a disintegrable granulated powder is preferred, and a disintegrable granulated powder described in JP-A-2000-119171 is more preferred.

In particular, when polyvinyl alcohol and/or a derivative thereof is used as a binder, the disintegrable granulated powder is easily disintegrated due to the rinsing water during rinsing, and the rinsing property is further improved. As a more preferable granulated powder, for example, primary particles of cellulose having a number average particle diameter of 1 to 70 μm are granulated by using maleic acid-modified polyvinyl alcohol as a binder to prepare a number average particle diameter of 50. ~500 μm granulated powder. Since the particles are easily disintegrated by washing water or tears during the washing process and the rinsing process, skin damage or itching is less likely to occur, and the flushing property is extremely good, so that it is preferable.

Further, the disintegrable granulated powder system preferably contains a sterilizing agent from the viewpoint of enhancing the bactericidal effect. As the bactericide, the above may be used, and isopropylmethylphenol is preferred.

In the case where the disintegrating granulated powder contains a sterilizing agent, it is preferable that the disintegrating granulated powder contains an oil agent from the viewpoint of improving the solubility of the sterilizing agent, and the oil preferably contains 25 A liquid oil in °C. More preferably, it contains an ester oil which is liquid at 25 °C. Here, the oil agent which is liquid at 25 ° C means an oil agent having a melting point of 25 ° C or less. That is, an oil agent having fluidity at 25 ° C under 1 atmosphere. Further, the melting point is measured in accordance with the third method described in the reference of the cosmetic raw materials.

The oil agent which is liquid at 25 ° C contained in the disintegrable granulated powder is not limited as long as it is a user of the usual detergent composition, and examples thereof include isopropyl myristate and the like. a monoester oil such as isodecyl phthalate, a diester oil such as dipentanoic acid neopentyl glycol, a triester oil such as tris-2-ethylhexanoic acid glycerol or tris(octanoic acid/capric acid) glycerin, which inhibits low temperature From the viewpoint of precipitation of the fungicide, a triester oil is preferable, and more preferably, it contains tris(octanoic acid/capric acid) glycerin.

The method for producing the disintegrable granulated powder is not particularly limited. For example, the water-insoluble particles (primary particles) described above may be mixed with the above-described binder (bonding agent) and granulated.

Further, when the disintegrating granulated powder contains a sterilizing agent, the water-insoluble particles (primary particles) described above, the above-described binder (bonding agent), and a sterilizing agent may be mixed, and it is preferred to further mix the oil agent. , obtained by granulation.

Further, the bactericide is preferably dissolved in an oil agent which is liquid at 25 ° C in advance, and is prepared as a sterilizing agent solution and mixed with others.

The water-insoluble particles preferably have a coefficient average particle diameter from the viewpoint of a moderate graininess, a washing effect on pores or gullies, and a washing sensation (by laser diffraction/scattering particle size distribution measuring device) The LA-910 (manufactured by Horticultural Co., Ltd.) has a median diameter of 50 to 500 μm, more preferably 60 to 400 μm.

The water-insoluble particles may be used singly or in combination of two or more kinds, and the content is preferably 0.01% by mass or more, more preferably 1% by mass or more, and further preferably from the viewpoint of improving the actual sensibility of washing during use. 2% by mass or more, preferably 25% by mass or less, more preferably 20% by mass or less, still more preferably 15% by mass or less. Further, the content of the water-insoluble particles is preferably from 0.01 to 25% by mass, more preferably from 1 to 20% by mass, still more preferably from 2 to 15% by mass, based on the total composition.

The skin detergent composition of the present invention may further contain a liquid agent in a liquid form at 25 ° C within a range not impairing the effects of the present invention.

The oil agent which is liquid at 25 ° C is not limited as long as it is a normal detergent composition, and may, for example, be a hydrocarbon oil such as liquid paraffin or squalane; isopropyl myristate or isophthalic acid a monoester oil such as isodecyl ester; a diester oil such as dinonanoic acid neoglutaric acid; a triester oil such as tris-2-ethylhexanoic acid glycerol or tris(octanoic acid/capric acid) glycerin; polyfluorene oxide oil, etc. .

Among these, triester oil is preferred from the viewpoint of improving the detergency, foaming, and rinsing properties of the pores.

The oil can be used in a liquid form at 25° C., and one or two or more kinds are used. From the viewpoint of improving the washing power, foaming, and rinsing properties of the pores, the content is preferably 5% by mass or less based on the total composition. It is more preferably 1% by mass or less, still more preferably 0.5% by mass or less, still more preferably 0.1% by mass or less, and particularly preferably 0% by mass. Here, "substantially 0% by mass" means that it is inevitably contained.

The skin detergent composition of the present invention is preferably substantially non-aqueous, that is, substantially free of water, and may contain a certain amount of water in the composition when water is contained in the raw material to be used. In the present invention, the term "substantially non-aqueous" means that the water content in the composition is 10% by mass or less, and from the viewpoint of improving the washing power to the pores, it is preferably 7% by mass or less.

The skin detergent composition of the present invention can be, for example, mixed with a solution in which the component (A) is partially dispersed in the component (D) and a solution in which the component (B) is dispersed in the remaining component (D), and stirred until uniform. Thereafter, the component (C) is added and stirred, and other components are added, and uniformly mixed to produce.

The skin cleansing composition of the present invention is preferably applied to the skin as a makeup remover, a washing pigment or the like.

The skin detergent composition of the present invention can be formed into a form filled in a container.

As the container used in the present invention, a container having a certain degree of airtightness can be used with a cap bottle, a tube container, a pump container, a pump type foaming container, etc., and if it is a container for the above preferred use, It is particularly limited that the tube container is preferred because it is low in cost and operates the container.

In the conventional detergent composition, if the viscosity is lowered in order to increase the degree of extraction (discharge) from the container, the liquid droplets are formed. On the other hand, if the viscosity is lowered in order to reduce the drop, the droplets are drooped. The situation disappeared, but it was difficult to remove it from the tube container.

The skin detergent composition of the present invention is a combination of the components (A) to (D), so that the discharge property of the container is not deteriorated, and the drip can be suppressed, so that the detergent contained in the tube container can be provided. Composition.

A method of washing the skin using the skin detergent composition of the present invention is, for example, the following. That is, the skin detergent composition of the present invention is applied to the body part of the body other than the scalp of the face, hands, feet, body, etc., preferably applied to the face, after being foamed and washed, using a shower A method of rinsing isothermal water.

The skin cleansing composition of the present invention can be used by a method comprising a body part other than the scalp applied to the body, preferably the face, hands, feet, body, and the like, and a better face.

The skin cleansing composition of the present invention can improve the detergency by including a step of applying to the body part of the body other than the scalp other than the scalp of the body, preferably the face, hands, feet, body, and the like.

The skin detergent composition of the present invention can be used as a sheet-like article impregnated on a substrate such as a non-woven fabric, and used for skin cleansing which is used to wipe off makeup dirt or sebum dirt. law.

The skin detergent composition of the present invention can be used for the improvement of the detergency of the pores, the improvement of the foaming, the improvement of the rinsing property, and the suppression of the drip.

The composition of the present invention can be used as a skin cleansing agent.

The composition of the present invention can be used as a cosmetic in a tube container filled with a skin detergent composition containing the following components (A), (B), (C) and (D): (A) Hydrophobicity Cerium dioxide 0.05 to 6 mass%; (B) water-soluble polymer 0.6 to 3.5% by mass; (C) anionic surfactant 1 to 15% by mass; (D) polyol or polyol ether 50 to 90% by mass.

The skin detergent composition of the present invention is preferably pH 3 to 12, more preferably 5 to 10.5. Further, the pH was measured by diluting each of the detergent compositions to 20 times with ion-exchanged water at 25 °C.

Further, the skin detergent composition of the present invention preferably has a viscosity at 30 ° C of 100 dPa ‧ from the viewpoints of suppressing drooping, lowering viscosity at high temperature, improving foaming, rinsing property, and storage stability. Above, better 130dPa‧s or more, more preferably 180dPa‧s or more, and more preferably 200dPa‧s or more; preferably 2500dPa‧s or less, better 1000dPa‧s or less, and even better 600dPa‧s or less, and better 400dPa‧s or less. Further, the viscosity at 30 ° C is preferably 100 to 2500 dPa ‧ s, more preferably 130 to 1000 dPa ‧ s, still more preferably 180 to 600 dPa ‧ s, and even more preferably 200 to 400 dPa ‧ s.

Further, the skin detergent composition of the present invention preferably has a viscosity at 30 ° C of 100 dPa ‧ from the viewpoints of suppressing drooping, lowering viscosity at high temperature, improving foaming, rinsing property, and storage stability. Above, better 130dPa‧s or more, more preferably 180dPa‧s or more, more preferably 200dPa‧s or more, even better 220dPa‧s or more, and better 240dPa‧s or more; preferably 2500dPa‧s or less, more preferably 1000dPa‧s or less, still more preferably 600dPa‧s or less, and more preferably 400dPa‧s or less. Further, the viscosity at 30 ° C is preferably 100 to 2500 dPa ‧ s, more preferably 130 to 1000 dPa ‧ s, more preferably 180 to 600 dPa ‧ s, more preferably 200 to 400 dPa ‧ s, and even more preferably 220 to 400 dPa ‧ s And better 240~400dPa‧s.

By the above range, the take-out property (discharge property) and the drooping of the container can be improved.

Furthermore, the rate of change of the difference in viscosity measured at 40 ° C and 30 ° C [(viscosity (30 ° C)) - (viscosity (40 ° C))] / [(viscosity (30 ° C)))) When the viscosity is lowered, the difference in the properties at room temperature and high temperature is small, and from the viewpoint of improving storage stability, it is preferably 0 or more, and preferably 0.35 or less, more preferably 0.29 or less, still more preferably 0.19 or less. .

Further, the viscosity is a value measured by a B-type viscometer (produced by Toki Sangyo Co., Ltd.), TV-B type, rotor No. TB, 5.0 rpm, and 1 minute, and is more than 1600 dPa ‧ s, depending on the rotor No. The measurement was carried out under the conditions of TC, 5.0 rpm, and 1 minute.

Regarding the above embodiment, the present invention further discloses the following composition.

<1> A skin detergent composition comprising the following components (A), (B), (C) and (D): (A) hydrophobic cerium oxide 0.05 to 6 mass%; (B) water-soluble The polymer is 0.6 to 3.5% by mass; (C) the anionic surfactant is 1 to 15% by mass; and (D) the polyol or polyol ether is 50 to 90% by mass.

<2> The skin detergent composition according to the above <1>, wherein the hydrophobic cerium oxide of the component (A) is preferably selected from the group consisting of dimethyl thiolated cerium oxide, thiolated cerium oxide, and cerium矽基化二 At least one or more of cerium oxide is more preferably dimethyl thiolated cerium oxide.

<3> The skin detergent composition according to the above <1> or <2>, wherein the hydrophobic cerium oxide of the component (A) preferably has a specific surface area of 80 to 400 m ² /g, more preferably 100 to 380 m ² / g, more preferably 120~330m ² /g.

<4> The skin detergent composition according to any one of the above items <1> to <3>, wherein the content of the component (A) is preferably 0.3% by mass or more, more preferably 0.8% by mass or more based on the total composition. More preferably, it is 1.2% by mass or more, and is 4.5% by mass or less, preferably 3% by mass or less.

<5> The skin detergent composition according to any one of the above <1> to <4>, wherein the water-soluble polymer of the component (B) has a preferred average molecular weight of 100,000 to 1,200,000, more preferably 300,000 to 1,000,000. Better still, 600,000~950,000.

<6> The skin detergent composition according to any one of <1> to <5>, wherein the water-soluble polymer of the component (B) is preferably a cellulose-based water-soluble polymer compound, more preferably selected from the group consisting of At least one of hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose is more preferably at least one selected from the group consisting of hydroxypropylcellulose and hydroxypropylmethylcellulose. More preferably, it is hydroxypropylcellulose.

<7> The skin detergent composition according to any one of the above items <1> to <6>, wherein the content of the component (B) is preferably 1.2% by mass or more, more preferably 1.5% by mass or more based on the total composition. It is preferably 2.8 mass% or less, more preferably 2.2 mass% or less, still more preferably 2.0 mass% or less.

<8> The skin detergent composition according to any one of the above <1> to <7>, wherein the mass ratio [(A)/(B)] of the component (A) to the component (B) is preferably 0.04. The above, more preferably 0.2 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, particularly preferably 1.0 or more; preferably 3.5 or less, more preferably 2.4 or less, still more preferably 2.0 or less, still more preferably 1.6 or less, and particularly preferably 1.35 or less. .

The skin detergent composition according to any one of the above items <1> to <8>, wherein the anionic surfactant of the component (C) is preferably at least one selected from the group consisting of a fatty acid salt and an alkyl ether carboxylate. More preferably, it is at least one selected from the group consisting of a fatty acid salt represented by the general formula (1) and an alkyl ether carboxylate represented by the general formula (2), and more preferably a fatty acid selected from the general formula (1). At least one or more and at least one selected from the group consisting of alkyl ether carboxylates represented by the general formula (2).

[Chemical 3] R ¹ -COOY (1)

(wherein R ¹ represents an alkyl or alkenyl group having a linear or branched chain of 9 to 21 carbon atoms, and Y represents an alkali metal, an alkaline earth metal, ammonium (NH ₄ ⁺ ), an organic ammonium or a basic amino acid. .)

R ² -O-(CH ₂ CH ₂ O) _n -CH ₂ -COOX (2)

(wherein R ² represents an alkyl or alkenyl group having 8 to 20 carbon atoms, n represents an average addition molar number of ethylene oxide, and represents an average of 0.5 to 10; X represents an alkali metal, an alkaline earth metal, Ammonium (NH ₄ ⁺ ), organic ammonium or basic amino acid.)

<10> The skin detergent composition according to any one of the above items <1> to <9>, wherein the content of the component (C) is preferably 2.5% by mass or more, more preferably 4.2% by mass or more based on the total composition. More preferably, it is 5.5% by mass or more; preferably, it is 12.5% by mass or less, more preferably 10.5% by mass or less, further preferably 9.5 mass% or less, and still more preferably 8.0 mass% or less.

<11> The skin detergent composition according to any one of <1> to <10>, wherein the polyol or polyol ether of the component (D) is preferably selected from the group consisting of 1,3-butanediol and propylene glycol. Dipropylene glycol, at least one of polyethylene glycol having a number average molecular weight of 600 or less, and diethylene glycol monoethyl ether More preferably, it is at least one selected from the group consisting of 1,3-butanediol and polyethylene glycol having a number average molecular weight of 500 or less; more preferably, it is selected from 1,3-butanediol, and the number average molecular weight is 300-450. At least one or more of the polyethylene glycols; more preferably, both.

<12> The skin detergent composition according to any one of <1> to <11>, wherein the content of the component (D) is preferably 56% by mass or more, more preferably 61% by mass or more based on the total composition. It is preferably 80% by mass or less, more preferably 75% by mass or less.

<13> The skin detergent composition according to any one of the above <1> to <12>, the mass ratio of the component (D) to the total mass of the components (A) and (B) [(D)/( (A)+(B))] is preferably 8 or more, more preferably 11 or more, still more preferably 12.5 or more, still more preferably 16 or less; preferably 42 or less, more preferably 35 or less, still more preferably 33 or less, and more preferably Good 23 or less.

<14> The skin detergent composition according to any one of the above <1> to <13>, which may further comprise (E) a nonionic surfactant of HLB 10 to 20, preferably HLB 11 to 18, more preferably HLB12~16.

<15> The skin detergent composition according to the above <14>, wherein the component (E) is preferably selected from the group consisting of polyethylene glycol fatty acid esters, polyethylene glycol alkyl ethers, and polyethylene glycol sorbitan fats. At least one or more of the acid esters are more preferably at least one selected from the group consisting of polyethylene glycol fatty acid esters and polyethylene glycol sorbitan fatty acid esters.

<16> The skin detergent composition according to the above <14> or <15>, wherein the content of the component (E) is preferably 5% by mass or more, preferably 10% by mass or more, more preferably 13% by weight of the total composition. The mass% or more; preferably 25% by mass or less, more preferably 20% by mass or less, still more preferably 17% by mass or less.

<17> The skin detergent composition according to any one of the above <14> to <16>, wherein the component (E) is relatively The mass ratio [(C)/(E)] of the acid-converted amount of the component (C) is preferably 0.1 or more, more preferably 0.26 or more, still more preferably 0.32 or more, still more preferably 0.40 or less; preferably 1.0 or less, more preferably Preferably, it is 0.86 or less, more preferably 0.75 or less, and still more preferably 0.50 or less.

<18> The skin detergent composition according to any one of the above <1> to <17>, which may further comprise (F) an amphoteric surfactant; preferably selected from the group consisting of a betaine type surfactant and an imidazoline type. At least one or more of the surfactants are more preferably a betaine-type surfactant, and still more preferably at least one selected from the group consisting of alkylguanidinylpropylbetaine and alkylhydroxysulfobetaine.

<19> The skin detergent composition according to the above <18>, wherein the content of the component (F) is preferably 0.1% by mass or more, preferably 0.5% by mass or more, and more preferably 1% by mass or more based on the total composition; It is preferably 8% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less.

<20> The skin detergent composition according to any one of the above <1> to <19>, which may further contain (G) water-insoluble particles, preferably having an average particle diameter of 50 to 500 μm, more preferably 60 to 400 μm. .

<21> The skin detergent composition according to the above <20>, the component (G) preferably contains a disintegrable granulated powder, and more preferably a polyvinyl alcohol and/or a derivative thereof is used as a binder. Further preferably, the primary particles of cellulose having a number average particle diameter of 1 to 70 μm are granulated by using maleic acid-modified polyvinyl alcohol as a binder to prepare a granulated powder having a number average particle diameter of 50 to 500 μm. .

<22> The skin detergent composition of the above <20> or <21>, wherein the content of the component (G) is preferably 0.01% by mass or more, more preferably 1% by mass or more, and still more preferably 2 parts by total. 5% by mass or more, preferably 25% by mass or less, more preferably 20% by mass or less, still more preferably 15 mass% The amount is below %.

<23> The skin detergent composition according to any one of the above <1> to <22>, preferably having a viscosity at 30 ° C of 100 to 2500 dPa ‧ s, more preferably 130 to 1000 dPa ‧ s, and still more preferably 180 ~600dPa‧s, more preferably 200~400dPa‧s, even better 220~400dPa‧s, and better 240~400dPa‧s.

<24> A skin cleansing method according to any one of the above <1> to <23>, which is applied to body skin other than the scalp of the body, preferably the face, hands, feet, body, and the like. The part is preferably applied to the face, foamed and washed, and then rinsed.

<25> A method for using a skin cleansing agent composition, comprising the skin cleansing agent composition according to any one of the above <1> to <23>, which is applied to a body, a preferred face, hands, feet, body, etc. The body part of the body other than the scalp, better face.

<26> A method for improving the detergency, which comprises applying the skin detergent composition according to any one of the above <1> to <23> to a body other than the scalp of a body, a face, a foot, a body, or the like. The steps of the body's skin and better face.

<27> A method for rinsing the skin, wherein the skin detergent composition according to any one of <1> to <23> is formed into a sheet-like article impregnated on a substrate such as a non-woven fabric, and the makeup dirt or sebum dirt is formed. Wipe and use.

<28> The use of the skin cleansing composition of any one of the above <1> to <23> for improving the detergency of the pores, lifting, lifting, or dripping Suppression.

<29> The use of the composition according to any one of the above <1> to <23> as a skin cleansing agent.

<30> A cosmetic product which is filled in a tube container and filled with a skin detergent composition containing the following components (A), (B), (C) and (D): (A) hydrophobic cerium oxide 0.05~ 6% by mass; (B) 0.6 to 3.5% by mass of the water-soluble polymer; (C) 1 to 15% by mass of the anionic surfactant; (D) 50 to 90% by mass of the polyol or polyol ether.

The skin detergent composition according to any one of the above items <1> to <23>, wherein the water content is preferably 10% by mass or less, more preferably 7% by mass or less based on the total composition.

Further, % means % by mass unless otherwise specified.

[Examples] [Examples 1 to 20 and Comparative Examples 1 to 3]

The skin detergent composition of the compositions shown in Tables 2 to 5 was produced, and the viscosity was measured, and the drooping, pore washing power, foaming, and rinsing properties were evaluated. The results are combined and shown in Tables 2 to 5.

(Production method)

(1) Example 1:

20 g of the component (A) was dispersed in a solution of 300 g of the component (D) at 350 rpm for 30 minutes in a screw agitator at 25° C., and 16 g of the component (B) was dispersed in a solution (D) of 357 g in a spiral agitator at 350 rpm for 30 minutes. The mixture was mixed and homogenized at 3000 rpm for 30 minutes to homogeneity. Thereafter, 25 g of lauric acid, 15 g of myristic acid, 27 g of polyoxyethylene lauryl ether acetate, and 150 g of (E) were added, and after heating to 80 ° C, the mixture was stirred at 300 rpm for 5 minutes in a screw mixer, and then 27 g of an aqueous potassium hydroxide solution was added thereto. 63 g of the aqueous solution of the component (F), The skin detergent composition was prepared by mixing for 5 minutes under the same conditions and cooling to 30 ° C at 1 ° C / 1 minute.

Further, lauric acid, myristic acid, and polyoxyethylene lauryl ether acetate are considered to be in the skin detergent composition to form potassium hydroxide and a salt, and exist as the component (C).

(2) Examples 2 to 20:

It was produced in the same manner as in Example 1.

(3) Comparative examples 1 to 3:

Comparative Example 1 was produced in the same manner as in Example 1 except that the unmixed component (A) was used. Further, Comparative Examples 2 and 3 were produced in the same manner as in Example 1 except that the component (B) was not prepared.

(evaluation method)

(1) Viscosity (30 ° C, 40 ° C):

After the skin cleansing agent composition was kept at 30 ° C or 40 ° C for 24 hours, it was subjected to a B-type viscometer (made by Toki Sangyo Co., Ltd., TV-B type), rotor No. TB, 5.0 rpm, 1 minute. The conditions were measured for viscosity at each storage temperature. Further, the viscosity was more than 1600 dPa ‧ and was measured under the conditions of rotor No. T-C, 5.0 rpm, and 1 minute.

(2) Viscosity change rate:

The rate of change of the viscosity of each skin detergent composition was determined from the following formula according to the viscosity at 30 ° C and 40 ° C measured in (1). The smaller the rate of change in viscosity, the better the storage stability.

[(viscosity (30 ° C)) - (viscosity (40 ° C))] / [viscosity (30 ° C)]

(3) Droplet sag (40 ° C):

Tube container in 5mm caliber ( In the 40LD/HD2 layer tube, manufactured by Daiwa Can Co., Ltd., 30 g of each skin detergent composition was filled in a state in which the lid was closed. The opening was turned down and no shear was applied, and it was fixed at a position of 20 cm in height, and the lid of the opening was removed, and the time (seconds) until the next drop of the droplet fell after the droplet was measured. The longer the time (seconds) until the next droplet falls behind the droplet, the longer the droplet is, and it is an excellent skin detergent composition.

Further, in the case where the drip is evaluated in this way, it is preferably within 60 seconds from the viewpoint of the take-out property from the tube container.

(4) Pore cleansing power:

The pore cleansing power was measured using a carbon black colored mode acne sebum (Table 1). On the anterior wrist, 10 μL of the acne sebum in the carbon black coloring mode was applied to a circular shape of 2.0 cm in diameter, and after drying for 30 minutes, 1.0 g of the skin detergent composition was dropped, and gently massaged 10 times with the index finger. After that, rinse gently with tap water for 10 seconds. The washing rate is measured by the skin before the application of the model acne sebum, the skin after the application of the acne sebum, and the skin after the pattern acne sebum is washed, and the color is measured by a color difference meter (CR-200, manufactured by Minolta Co., Ltd.). The following calculation formula is obtained.

(calculation of washing rate)

‧ Set the Lab's skin before applying the acne sebum to Lst, ast, and bst.

‧ Set the skin of the skin after applying the acne sebum to L1, a1, and b1.

‧ Set the skin of the skin after washing the acne sebum to L2, a2, and b2.

‧ Calculate the color difference (△E1) before washing and the color difference after washing (△E2) according to the following formula.

△E1={(L1-Lst) ² +(a1-ast) ² +(b1-bst) ² } ^1/2 △E2={(L2-Lst) ² +(a2-ast) ² +(b2-bst ) ² } ^1/2

‧ Calculate the washing rate by the following formula

Washing rate (%) = {1 - (ΔE2 / ΔE1)} × 100

(modulation of acne sebum)

95% by mass of the composition shown in Table 1 and 5 mass% of carbon black were mixed, and the mixture was heated to 50 ° C, and stirred with a stirrer for 1 minute to prepare a pattern of sebum.

(5) Foaming:

After moistening both hands with water (7 g), 2 g of the skin detergent composition was placed on the palm of the hand. After adding 5 g of water, the palms of both hands were foamed for 10 seconds. The amount of bubbles was evaluated from the generated bubbles. The evaluation was performed by three panelists, and the case where the amount of foam was very large was set to 5, and the case where the amount of sensory bubbles was small was set to 1, and the evaluation was performed in five stages, and the total number of points was expressed.

(6) rinsing

After moistening both hands with water (7 g), 2 g of the skin detergent composition was placed on the palm of the hand. After adding 5 g of water, the palms of both hands were foamed for 10 seconds. Thereafter, it was rinsed with tap water, and the rinsing property was evaluated from the speed at which the slipperiness disappeared. The evaluation was performed by three special judges, and the case where the flushing was very fast was set to 5, and the case where the flushing was felt to be slow was set to 1, and the evaluation was performed in five stages, and the total number of points was expressed.

[Example 21, Comparative Examples 4 to 5]

The skin detergent composition of the composition shown in Table 6 was produced, and the viscosity was measured, and the drip, pore cleansing power, foaming and rinsing properties were evaluated, and the stability of the water-insoluble particles was evaluated. The results are combined and shown in Table 6.

(Production method)

(1) Example 21:

20 g of the component (A) was dispersed in a solution of 250 g of the component (D) at 350 rpm for 30 minutes in a screw mixer, and 16 g of the component (B) was dispersed in a solution (D) of 287 g in a screw mixer at 350 rpm for 30 minutes. The mixture was mixed and homogenized at 3000 rpm for 30 minutes to homogeneity. Thereafter, 25 g of lauric acid, 15 g of myristic acid, 27 g of polyoxyethylene lauryl ether acetate, and 150 g of (E) were added, and after heating to 80 ° C, the mixture was stirred at 300 rpm for 5 minutes in a screw mixer, and then 27 g of an aqueous potassium hydroxide solution was added thereto. 63 g of an aqueous solution of the component (F) was mixed for 5 minutes under the same conditions, and cooled to 30 ° C at 1 ° C / 1 minute. Then, a solution in which 20 g of the component (G) was dispersed in 100 g of the component (D) was added, and the mixture was stirred at 300 rpm in a screw mixer for 5 minutes to prepare a skin detergent composition.

(2) Comparative Examples 4 and 5:

Comparative Example 4 was produced in the same manner as in Example 21 except that the unmixed component (A) was used. Further, Comparative Example 5 was produced in the same manner as in Example 21 except that the unmixed component (B) was used.

(evaluation method)

(6) Stability of water-insoluble particles:

100 g of each skin detergent composition was placed in a glass bottle (Model PS-No. 11, manufactured by Tokyo Glass Co., Ltd.) having a capacity of 130 mL, and stored at 50 ° C for one day. Thereafter, the state was returned to 25 ° C, and the skin detergent composition was observed from the bottom surface of the glass bottle, whereby the state of the water-insoluble particles in the skin detergent composition was visually evaluated. The evaluation was performed by one of the special judges, and the case where the feeling of sinking was small was set to 3 based on the state before the preservation, and the case where the feeling of sedimentation was large was set to 1, and the evaluation was performed in three stages.

[Examples 22 to 26]

In the same manner as in Example 1, a skin detergent composition having the composition shown in Table 7 was produced, and the viscosity was measured, and the drip, pore cleansing power, foaming, and rinsing properties were evaluated. The results are combined and shown in Table 7.

It was found that the skin detergent compositions of Examples 22 to 26 all inhibited the drooping, and the pore washing power, foaming, rinsing properties, and water-insoluble particles were excellent in stability.

Further, the skin detergent compositions of Examples 1 to 26 were placed in a tube container, and the discharge property when the skin detergent composition was taken out from the container and the spread when applied to the skin were evaluated, and the results were excellent, especially 30. Examples 1 to 3, 5, 9, 10, 13 to 15, and 17 to 26 having a viscosity of 200 to 400 dPa·s at ° C are superior.

[Example 3 and Comparative Example 6]

The skin detergent composition of the composition shown in Table 8 was produced, and the viscosity was measured, and the drip, pore cleansing power, foaming and rinsing properties were evaluated. Comparative Example 6 was produced in the same manner as in Example 1 except that the unmixed component (A) was used. The results are combined and shown in Table 8.

[Prescription Example 1]

In the same manner as in Examples 1 to 26, a skin detergent composition of the composition shown below was produced.

The obtained skin detergent composition suppresses the drop of the drip at the time of use and the viscosity at a high temperature, and is excellent in the detergency, especially in the washing power, foaming, and rinsing property of the pores.

(ingredient)

*5: HPC-H, manufactured by Japan Soda Co., Ltd. (quantitative average molecular weight: 910000) *6: PALMAC 98-12, Kao Corporation *7: PALMAC 98-14, Kao Corporation *8: alkyl ether carboxylic acid; Japan JP-A-2013-53092, the alkyl ether carboxylic acid *10: 1,3-butanediol-P described in Production Example 1, *11: PEG-400 manufactured by KH NeoChem Co., Ltd., manufactured by Sanyo Chemical Industry Co., Ltd. *12 :EMANONE 1112HG, manufactured by Kao Corporation (HLB13.7)*9: Effective fraction of liquid caustic soda, manufactured by Japan Soda Co., Ltd. (effective portion 48%)*13: effective portion of AMPHITOL 20AB, manufactured by Kao Corporation (effective portion 30%) *21: DPG-RF, manufactured by ADEKA Corporation *22: SEAHOSOL DG-S, manufactured by Nippon Shokubai Co., Ltd.

Production Example 1 (Manufacture of disintegrating particles containing a bactericide)

45g of cellulose powder (W-400G: manufactured by Nippon Paper Industries Co., Ltd.) and corn starch (Japanese Pharmacopoeia corn starch, manufactured by Matsutani Chemical Co., Ltd.) 45g were mixed with LFS-GS-2J high-speed mixer (manufactured by Shinagawa Sangyo Co., Ltd.). And 0.1 g of isopropylmethylphenol (isopropyl methylphenol: manufactured by Osaka Chemical Industry Co., Ltd.) dissolved in tris(octanoic acid/capric acid) glycerol (COCONARD MT: manufactured by Kao Corporation) 1 g of isopropylmethylphenol The solution is mixed. 159 g of a 5% aqueous solution of itaconic acid polyvinyl alcohol (KL-118: manufactured by KURARAY Co., Ltd.) was further slowly added to the obtained mixture, and thereafter, the above mixture was mixed with the above-mentioned itaconic acid polyvinyl alcohol by the above-mentioned high-speed mixer. Granules, whereby granules are obtained. Thereafter, the granules were dried in an environment of 70 ° C for 12 hours, and the dried granules were sieved to obtain a sterilizing agent-containing disintegrable particles having a number average particle diameter of 400 μm (cellulose powder: corn Starch: itaconic acid polyvinyl alcohol: isopropylmethylphenol: tris(caprylic/capric acid) glycerol = 50:50:10:0.5:1).

Prescription Example 2 (Pore Washing Pigment)

In the same manner as in Example 21, a pore-washing pigment having the composition shown below was produced.

The obtained pore-washing pigment suppresses the drop of the drip at the time of use and the viscosity at a high temperature, and is excellent in the detergency, especially the washing power, foaming, and rinsing property of the pores.

(ingredient)

*5: HPC-H, manufactured by Japan Soda Co., Ltd. (quantitative average molecular weight: 910000) *6: PALMAC 98-12, Kao Corporation *7: PALMAC 98-14, Kao Corporation *8: alkyl ether carboxylic acid; Japan JP-A-2013-53092, the alkyl ether carboxylic acid *10: 1,3-butanediol-P described in Production Example 1, *11: PEG-400 manufactured by KH NeoChem Co., Ltd., manufactured by Sanyo Chemical Industry Co., Ltd. *12 :EMANONE 1112HG, manufactured by Kao Corporation (HLB13.7)*9: Effective fraction of liquid caustic soda, manufactured by Japan Soda Co., Ltd. (effective portion 48%)*13: effective portion of AMPHITOL 20AB, manufactured by Kao Corporation (effective portion 30%) *21: DPG-RF, manufactured by ADEKA Corporation *22: SEAHOSOL DG-S, manufactured by Nippon Shokubai Co., Ltd. *23: Cellulose powder: Corn starch: Adhesive: Fungicide: Triglyceride = 50:50:10: 0.5:1 (manufacturing example 1)

Prescription Example 3 (matte wash pigment)

In the same manner as in Example 21, a scrubbing pigment having the composition shown below was produced.

The obtained scrub-washing pigment suppresses the drop of the drip at the time of use and the viscosity at a high temperature, and is excellent in the detergency, especially the washing power, foaming, and rinsing property of the pores.

(ingredient)

[Example 27]

In the same manner as in Example 1, the skin detergent composition of the composition shown in Table 9 was produced. The viscosity was measured, and the drooping, pore cleansing power, foaming, and rinsing properties were evaluated. The results are shown together in Table 9.

Claims (6)

A skin detergent composition comprising the following components (A), (B), (C) and (D): (A) hydrophobic cerium oxide 0.05 to 6% by mass; (B) water-soluble polymer 0.6 to 3.5% by mass; (C) 1 to 15% by mass of an anionic surfactant; (D) 50 to 90% by mass of a polyol or a polyol ether. The skin detergent composition of claim 1, wherein the mass ratio [(A)/(B)] of the component (A) to the component (B) is 0.04 to 3.5. The skin detergent composition according to claim 1 or 2, wherein the mass ratio of the component (D) to the total mass of the components (A) and (B) [(D)/((A)+(B)) ] is 8~42. The skin cleansing composition of claim 1, which further comprises (E) a nonionic surfactant of HLB 10-20. The skin detergent composition of claim 4, wherein the mass ratio [(C)/(E)] of the component (C) to the component (E) is 0.1 to 1.0. The skin detergent composition of claim 1, which comprises the component (G) water-insoluble particles.