JP6650718B2 - Water-in-oil emulsion cosmetics - Google Patents

Description

  The present invention relates to a water-in-oil type emulsified cosmetic.

Various cosmetics containing silicone resins have been studied in order to obtain cosmetics having excellent cosmetic durability and feel.
For example, Patent Literature 1 describes that a cosmetic containing a nonvolatile oil agent, a silicone elastomer, an oil-soluble silicone resin, and a volatile solvent has lubricity, and is excellent in durability and feel. Patent Literature 2 discloses that a cosmetic containing fluorine-modified silicone, fine-particle zinc oxide, hydrophobized powder, and trimethylsiloxysilicic acid has no tightness, is not uneven, has good makeup, and loses makeup. It is described that it is difficult. Patent Literature 3 describes that a cosmetic containing trimethylsiloxysilicic acid, zinc oxide fine particles, and hyaluronic acid suppresses a dry feeling and a firm feeling, and is excellent in long-lasting makeup. Patent Document 4 discloses that a water-in-oil emulsified cosmetic containing trimethylsiloxysilicic acid, fluorinated powder, finely divided zinc oxide, and spherical silica does not become uneven, quickly adjusts to the skin, and suppresses makeup collapse and stickiness. It is described that the sensation of smoothness is maintained.

JP-A-2002-205914 JP 2013-181007 A JP 2013-18109 A JP-A-2015-120666

  The present inventor has a problem that, when a foundation is applied, a woman who is concerned about the conspicuousness of pores can not hide the pores and darkening of the skin cleanly. I found a problem that it was not solid.

  The present inventors have solved the above problem by using a specific amount of a glycerin fatty acid ester which is solid at 25 ° C. in combination with a silicone resin spherical elastic powder, an organic silicone resin and zinc oxide. Was obtained.

The invention comprises the following components (A), (B), (C) and (D):
(A) silicone resin spherical elastic powder 0.1 to 30% by mass,
(B) an organic silicone resin 0.01 to 10% by mass,
(C) 0.1 to 20% by mass of zinc oxide having an average particle size of 10 to 100 nm,
(D) Glycerin fatty acid ester solid at 25 ° C. 0.1 to 20% by mass
And a water-in-oil type emulsified cosmetic comprising:

  The water-in-oil type emulsified cosmetic of the present invention is suitable for women who are concerned about the appearance of pores, making pores less noticeable and covering dark pores. The opening is less noticeable, and it can cover the darkened pores. Also, the foundation does not accumulate in the pores. Furthermore, it has excellent high-temperature stability.

The silicone resin spherical elastic powder of the component (A) used in the present invention may be a spherical powder having a spherical shape, including a true sphere, a substantially spherical shape, a spheroidal shape, and a surface having irregularities.
The silicone resin spherical elastic powder preferably has a rubber elasticity in the range of 5 to 80, more preferably 10 to 50. Rubber elasticity is measured with a durometer A according to JIS K 7215.

In addition, the silicone resin spherical elastic powder preferably has an average particle diameter of 1 to 50 μm from the viewpoint of excellent slipperiness on the skin, excellent adhesion to the skin, and forming a uniform film. -15 μm is more preferable.
The particle diameter of the powder is measured by a particle size distribution analyzer using a laser diffraction / scattering method. Specifically, it is measured with a laser diffraction scattering type particle size distribution analyzer (for example, LA-920, manufactured by HORIBA, Ltd.) using ethanol as a dispersion medium.

The silicone resin spherical elastic powder may be a silicone rubber powder or a composite spherical powder having a silicone rubber powder as a base powder, and examples thereof include a silicone resin-coated silicone rubber powder.
The silicone rubber powder is obtained by pulverizing a silicone rubber having a structure in which linear dimethyl silicone is crosslinked, and is preferably a (dimethicone / vinyl dimethicone) crosspolymer. Examples of commercially available products include Trefil E506S (average particle diameter 4 μm, rubber elasticity 30), Trefill E508 (average particle diameter 4 μm, rubber elasticity 17) (all manufactured by Toray Downing).
The silicone resin-coated silicone rubber powder is obtained by coating the surface of a silicone rubber powder with a silsesquioxane resin, and is preferably a (diphenyldimethicone / vinyldiphenyldimethicone / silsesquioxane) crosspolymer. As commercially available products, KSP-100 (average particle diameter 5 μm, rubber elasticity 30), KSP-101 (average particle diameter 12 μm, rubber elasticity 30), KSP-102 (average particle diameter 30 μm, rubber elasticity 30), KSP-105 (Average particle diameter 2 μm, rubber elasticity 75), KSP-300 (average particle diameter 5 μm, rubber elasticity 40) (all manufactured by Shin-Etsu Chemical Co., Ltd.).

  One or more types of the component (A) can be used, and the content thereof is 0 in the total composition in terms of good spreadability at the time of application, smooth use feeling, and excellent adhesion to skin. 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.7% by mass or more, still more preferably 1% by mass or more, 30% by mass or less, preferably 10% by mass or less, and 4% by mass or less. % By mass is more preferable, and 3% by mass or less is further preferable. Further, the content of the component (A) is 0.1 to 30% by mass, preferably 0.3 to 10% by mass, more preferably 0.7 to 4% by mass, and 1 to 3% by mass in the whole composition. % Is more preferred.

  The organosilicone resin of the component (B) is other than the component (A), and any of those usually used in cosmetics can be used. For example, (B-1) an alkyl silsesquioxane resin, (B-2) trimethylsiloxysilicic acid, and (B-3) a fluorine-modified silicone resin, and one or more kinds can be used.

(B-1) The alkylsilsesquioxane resin is in a paste or solid state at room temperature (25 ° C.), and is compatible with volatile oil, so that volatile oil is applied on the skin. It has the property of forming a film by volatilization. (B-1) As the alkylsilsesquioxane resin, specifically, a silanol group-containing organopolysilsesquioxane composed of _1.5 units of R ¹ SiO (wherein R ¹ is a substituted or unsubstituted monovalent hydrocarbon) against a representative) to 100 parts by mass based on, (in R ² ₃ Si) _a Z (formula, R ² represents a substituted or non-substituted monovalent hydrocarbon group, a represents 1 or 2, Z is a Is 1 when it represents a hydrogen atom, a hydroxyl group, or a hydrolyzable group, and when a is 2, it represents -O-, -N (X)-, or -S-, where X is a hydrogen atom and has 1 carbon atom. are those obtained by reacting a monovalent hydrocarbon radical or R ² ₃ silicone compound 5-100 parts by weight represented by the Si- a representative) of to 4, R ¹ SiO _1.5 units to 99 mole%, R made of ² ₃ SiO _0.5 units 1-50 mol% and silicone resins.
Polypropylsilsesquioxane is preferred from the viewpoint of adhesion to the skin and no accumulation of foundation in pores.

In addition, since the alkylsilsesquioxane resin is in the form of a paste or solid at 25 ° C., it is preferable to use the resin after dissolving it in cyclic silicone, dimethylpolysiloxane, or the like. As the cyclic silicone, it is preferable to dissolve and use one or more selected from octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5).
Commercially available alkyl silsesquioxane resins include propyl silsesquioxane resins, and 670FLUID (manufactured by Dow Corning Toray) can be suitably used. The 670FLUID is a mixture of about 50 parts by weight of polypropylsilsesquioxane and about 50 parts by weight of decamethylcyclopentasiloxane.

The (B-2) trimethylsiloxysilicic acid is not limited as long as it is generally used in cosmetics, and any compound can be used. A compound having a crosslinked structure having a siloxane structure as a main skeleton, [(CH ₃ ) ₃ SiO _1/2 ] _x [SiO ₂ ] _y (x is 1 to 3, y is 0.5 to 8) is preferable.
In addition, trimethylsiloxysilicic acid preferably has a weight-average molecular weight of 1,000 to 10,000, more preferably 2,000 to 9000, and still more preferably 3,000 to 6,000, from the viewpoint of feeling of use and long-lasting makeup. Further, its properties may be any of liquid, gum, paste, and solid at 25 ° C., but solid is preferable from the viewpoint of the obtained cosmetic durability. Further, from the viewpoint of mixability, it is preferable that the solution or dispersion is a solution or dispersion diluted with a solvent, or a solution or dispersion obtained by mixing in advance. As the solvent to be diluted or dispersed, one or more selected from dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and isododecane are preferable, and volatile dimethylpolysiloxane and decamethylcyclopentasiloxane are preferable. More preferred. In addition, a volatile thing has a flash point of 35-90 degreeC.

  As commercially available products, KF-7312J (50% solids decamethylcyclopentasiloxane solution), KF-9021 (50% decamethylcyclopentasiloxane solution), X21-5249 (50% Decamethylcyclopentasiloxane solution) (Shin-Etsu Chemical Co., Ltd.), SS4267 (35% dimethylpolysiloxane solution), SR1000 (Solution: Momentive Performance Materials Japan GK), BY11-018 (30%) Cyclopentasiloxane solution) (manufactured by Dow Corning Toray Silicone Co., Ltd.), BELSIL TMS 803 (manufactured by Wacker Chemie AG) and the like can be used.

(B-3) The fluorine-modified silicone resin is not limited as long as it is generally used for cosmetics, and any of them can be used, and examples thereof include those having a structure represented by the general formula (1).
R ³ _b SiO _{(4-b) / 2} (1)
(Wherein, R ³ represents a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group, or a general formula —R ⁴ —Rf (R ⁴ represents a divalent alkylene group having 2 to 6 carbon atoms; Which represents a perfluoroalkyl group of Formulas 1 to 8), and is arbitrarily selected from a hydroxyl group and a functional group having the formula —R ⁴ —Rf as essential, and b is an average number of 1.0 ≦ b ≦ 1.8. Is)
The fluorine-modified silicone resin has a silanol group in the molecule from the viewpoint of adhesion to skin and powder, and the ratio of the OH group in the silanol group is 0.1 to 5% by mass with respect to the resin mass. Is preferable, and 0.5 to 5% by mass is more preferable.

Component (B-3) is preferably solid at 25 ° C., and is preferably used by dissolving it in cyclic silicone, dimethylpolysiloxane, or the like. As the cyclic silicone, it is preferable to dissolve and use at least one selected from octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5).
Examples of such a fluorine-modified silicone resin include XS66-B8226, XS66-C1191, and XS66-B8636 manufactured by Momentive Performance Materials Inc., which are INCI names "Trifluoropropyldimethyl / Trimethylsiloxysilicate". Commercially available products can be used.

Among the organic silicone resins of the component (B), (B-1) an alkylsilsesquioxane resin is preferable, and polypropylsilsesquioxane is more preferable.
The organosilicone resin of the component (B) can be used alone or in combination of two or more, and is contained from the viewpoint of uniformly adhering cosmetics to skin crevices / concretes and improving adhesion. The amount is at least 0.01% by mass, preferably at least 0.1% by mass, more preferably at least 0.4% by mass, even more preferably at most 0.6% by mass and at most 10% by mass in the whole composition. , 7% by mass or less, preferably 4% by mass or less, more preferably 3% by mass or less. Further, the content of the component (B) is 0.01 to 10% by mass, preferably 0.1 to 7% by mass, more preferably 0.4 to 4% by mass, and still more preferably 0.6 to 3% by mass. .

The average particle diameter of the zinc oxide of the component (C) is from 10 to 100 nm, preferably from 20 to 80 nm, since the zinc oxide is excellent in cosmetic durability and can provide a good feeling in use.
In the present invention, the average particle diameter is measured by an electron microscope observation and a particle size distribution measuring device by a laser diffraction / scattering method. Specifically, in the case of the laser diffraction / scattering method, a 50% median diameter is measured by using a laser diffraction / scattering particle size distribution analyzer (for example, LA-920, manufactured by HORIBA, Ltd.) using ethanol as a dispersion medium. And

Further, zinc oxide is excellent in makeup, in that it enables to obtain a good feeling, a specific surface area is preferably from ^{10~100m 2 / g, 15~95m 2 /} g is more preferable.

The zinc oxide of the component (C) can be used as it is, but if necessary, for example, the surface of a fluorine compound, silicone compound, metal soap, amino acid compound, lecithin, alkylsilane, oil agent, organic titanate, etc. It is also possible to use a treatment agent which has been subjected to a hydrophobic treatment. From the viewpoint of improving the dispersibility of zinc oxide, dimethylpolysiloxane, methylhydrogenpolysiloxane, cyclic silicone, one-terminal or both-terminal trialkoxy group-modified organopolysiloxane, cross-linked silicone, silicone resin, fluorine-modified silicone resin, acrylic Those surface-treated with a silicone-based compound such as modified silicone are preferred, those treated with dimethylpolysiloxane and methylhydrogenpolysiloxane are more preferred, and those treated with methylhydrogenpolysiloxane are even more preferred.
When the zinc oxide is subjected to the hydrophobic treatment, the content, the average particle diameter, and the specific surface area of the component (C) mean the mass, the average particle diameter, and the specific surface area including the agent subjected to the hydrophobic treatment.

  As the component (C), one or more kinds can be used, and the content thereof is 0.1% by mass or more in the total composition because the cosmetics are excellent in durability and a good feeling in use can be obtained. Is preferably 0.4% by mass or more, more preferably 0.7% by mass or more, still more preferably 1% by mass or more, 20% by mass or less, preferably 10% by mass or less, and more preferably 7% by mass. And more preferably 5% by mass or less. Further, the content of the component (C) is 0.1 to 20% by mass, preferably 0.4 to 10% by mass, more preferably 0.7 to 7% by mass, and 1 to 5% by mass in the whole composition. % Is more preferred.

The glycerin fatty acid ester of component (D) is solid at 25 ° C. The term “solid at 25 ° C.” refers to a property of a semisolid to a solid at 25 ° C.
The glycerin fatty acid ester is preferably a triester, which suppresses the appearance of pores and covers the darkening of pores, and suppresses the noticeable appearance of pores even after a long period of time, and covers the darkening of pores. In terms of excellent properties and excellent storage stability at high temperatures, triglycerides of fatty acids having 20 to 28 carbon atoms are more preferable, triglycerides of fatty acids having 20 to 24 carbon atoms are more preferable, and tribehenine is still more preferable.

  As the component (D), one type or two or more types can be used. The content of the component (D) suppresses the noticeable opening of pores, covers the darkening of pores, and opens the pores even after a long time has passed. From the point of excellent persistence of covering the darkening of pores and excellent storage stability at high temperatures, it is 0.1% by mass or more in the total composition, preferably 0.2% by mass or more, 0.4 mass% or more is more preferable, 0.6 mass% or more is more preferable, 20 mass% or less, 10 mass% or less is preferable, 4 mass% is more preferable, and 3 mass% or less is still more preferable. Further, the content of the component (D) is 0.1 to 20% by mass in the whole composition, preferably 0.2 to 10% by mass, more preferably 0.4 to 4% by mass, and 0.6 to 10% by mass. 3% by mass is more preferred.

  In the present invention, the mass ratio (D) / (A) of the component (D) to the component (A) suppresses conspicuous opening of the pores, covers the darkening of the pores, and furthermore, even after a long time has passed. Suppress the conspicuousness of the opening, is excellent in persistence of covering the darkening of pores, and is excellent in storage stability at high temperatures, and is preferably 0.05 or more, more preferably 0.1 or more, and 0.2 or more. More preferably, it is still more preferably 0.5 or more, preferably 8 or less, more preferably 6 or less, still more preferably 4 or less, and still more preferably 2.5 or less. Further, the mass ratio (D) / (A) of the component (D) to the component (A) is preferably from 0.05 to 8, more preferably from 0.1 to 6, further preferably from 0.2 to 4, and 0 0.5-2.5 is even more preferred.

  In the present invention, the mass ratio (D) / (B) of the component (D) to the component (B) suppresses the noticeable pore opening, covers the pore darkening, and furthermore, even after a long time elapses, Suppress the conspicuousness of the opening, is excellent in persistence of covering the darkening of pores, and is excellent in storage stability at high temperatures, and is preferably 0.05 or more, more preferably 0.1 or more, and 0.2 or more. More preferably, it is still more preferably 0.3 or more, preferably 10 or less, more preferably 7 or less, still more preferably 5 or less, and still more preferably 3 or less. In addition, the mass ratio (D) / (B) of the component (D) to the component (B) is preferably 0.05 to 10, more preferably 0.1 to 7, further preferably 0.2 to 5, and 0 to 10. .3 to 3 are even more preferred.

  In the present invention, the content of water is not particularly limited as long as it can be prepared as a water-in-oil emulsified cosmetic, but from the viewpoint of excellent usability and storage stability, 10 to 85 mass% in the entire composition. %, More preferably 20 to 75% by mass, even more preferably 30 to 65% by mass.

  The water-in-oil emulsified cosmetic of the present invention may contain a powder other than the component (C). As the powder other than the above, if it is a powder usually used in cosmetics, spherical, plate-like, needle-like or the like, fume-like, fine particles, particle size such as pigment grade, porous, non-porous, etc. It can be used without any particular limitation depending on the particle structure and the like. Specifically, red iron oxide, iron hydroxide, iron titanate, yellow iron oxide, black iron oxide, carbon black, navy blue, ultramarine, manganese violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt oxide, cobalt titanate, etc. Colored pigments: titanium oxide, zinc oxide, zirconium oxide, magnesium oxide, cerium oxide, aluminum oxide, barium sulfate, calcium sulfate, magnesium sulfate, magnesium carbonate, calcium carbonate, talc, mica, kaolin, sericite, silicic acid, Silicic anhydride, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, barium silicate, strontium silicate, metal tungstate, hydroxyapatite, vermiculite, bentonite, montmorillonite, hec White or extender pigments such as light, smectite, zeolite, ceramic powder, dibasic calcium phosphate, alumina, silica, aluminum hydroxide, boron nitride, synthetic sericite; fish scale foil, titanium oxide-coated mica (titanium mica), bismuth oxychloride , Titanium oxide coated bismuth oxychloride, titanium oxide coated talc, titanium oxide coated colored mica, titanium oxide iron oxide coated mica, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, organic pigment treated mica titanium, lower titanium oxide Coated mica, mica, titanium oxide coated synthetic mica, titanium oxide coated plate silica, hollow plate titanium oxide, iron oxide coated mica, plate iron oxide (MIO), aluminum flake, stainless flake, titanium oxide coated plate alumina, Pearl shell, gold leaf, gold evaporated resin film, gold Pearl pigments (brilliant powders) such as vapor-deposited resin films; organic powders such as organopolysiloxane elastomer, polymethylsilsesquioxane, nylon powder, silk powder, urethane powder, and cellulose powder; Red No. 104, red No. 102, Red No. 226, Red No. 201, Red No. 202, Yellow No. 4, Black No. 401, etc., organic tar pigments, organic dyes and their lakes, and one or more of these may be used. Can be.

Any of the powders used in the present invention can be used as they are, and powders obtained by subjecting one or more of them to a hydrophobic treatment can also be used. The hydrophobization treatment is not limited as long as it is a treatment applied to ordinary cosmetic powders, and includes fluorine compounds, silicone compounds, metal soaps, amino acid compounds, lecithin, alkylsilanes, oils, organic titanates, and the like. Dry treatment, wet treatment, etc. may be performed using the above surface treatment agent.
Specific examples of the surface treatment agent include fluorine compounds such as perfluoropolyether, perfluoroalkylphosphate ester, perfluoroalkylalkoxysilane, and fluorine-modified silicone; dimethylpolysiloxane, methylhydrogenpolysiloxane, cyclic silicone, pieces Silicone compounds such as organopolysiloxane modified with a trialkoxy group at both or both terminals, crosslinked silicone, silicone resin, fluorine-modified silicone resin, acrylic-modified silicone; aluminum stearate, aluminum myristate, zinc stearate, magnesium stearate, etc. Metal soaps; amino acid compounds such as proline, hydroxyproline, alanine, glycine, sarcosine, glutamic acid, aspartic acid, lysine and derivatives thereof; lecithin; Lecithin added; alkylsilanes such as methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane, octyltrimethoxysilane, octyltriethoxysilane; oils such as polyisobutylene, wax, oils and fats; and organics such as isopropyltitanium triisostearate Titanate and the like can be mentioned.

Further, as the powder used in the present invention, a powder obtained by subjecting one or more of these powders to a hydrophilic treatment can be used. The hydrophilization treatment is not limited as long as it is a treatment applied to ordinary cosmetic powder.
For example, gum arabic, tragacanth, arabinogalactan, locust bean gum (carob gum), guar gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), starch (rice, corn, potato, wheat), alge colloid, trant gum, Plant-based polymers such as locust bean gum; microbial polymers such as xanthan gum, dextran, succinoglucan, pullulan; animal-based polymers such as collagen, casein, albumin, deoxyribonucleic acid (DNA) and salts thereof; carboxymethyl starch , Starch-based polymers such as methylhydroxypropyl starch; methylcellulose, ethylcellulose, methylhydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose Hydroxypropylcellulose, nitrocellulose, cellulose sodium sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose-based cellulosic polymers; alginic acid-based polymers such as sodium alginate and propylene glycol alginate; polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer Polyoxyethylene polymers such as polyethylene glycol and polyethylene glycol silane; Polyoxyethylene polyoxypropylene copolymer polymers; Acrylics such as sodium polyacrylate, polyethyl acrylate and polyacrylamide And inorganic silicate-based compounds such as silica.

The water-in-oil emulsion cosmetic of the present invention can contain an oil component which is liquid at 25 ° C. It is an oil component having fluidity at 25 ° C., and includes a paste-like oily component as long as it has fluidity.
The oil component liquid at 25 ° C. may be any oil component that is used in ordinary cosmetics. For example, straight or branched hydrocarbons such as liquid paraffin, light isoparaffin, liquid isoparaffin, mineral oil, squalane, and squalene Oils: avocado oil, macadamia nut oil, olive oil, rapeseed oil, sesame oil, wheat germ oil, linseed oil, cottonseed oil, soybean oil, palm oil. Vegetable oils such as palm oil, castor oil, jojoba oil, sunflower oil, camellia oil, corn oil, etc .; animal oils such as liquid lanolin; isopropyl myristate, octyldodecyl myristate, isopropyl isostearate, isopropyl isononanoate, isononyl isononanoate, isotridecyl isononanoate, stearic acid Butyl, oleyl oleate, octyldodecyl ricinoleate, octyl hydroxystearate, 2-ethylhexyl paramethoxycinnamate, neopentyl glycol dicaprate, diisostearyl malate, polyglyceryl diisostearate, polyglyceryl triisostearate, glyceryl diisostearate, Glyceryl triisostearate, glyceryl tri (caprylate / caprate), glyceryl tri-2-ethylhexanoate, tri-2-ethyl Fatty acid esters such as trimethylolpropane hexanoate, trimethylolpropane triisostearate, dl-α-tocopherol, dl-α-tocopherol nicotinate; dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane Oils such as fluoropolyethers and perfluoroalkyl ether silicones; as creamy or pasty oily components, trilanolin fatty acid glyceryl, soft lanolin fatty acid, petrolatum, branched or hydroxylated Cholesteryl fatty acid, dipentaerythritol fatty acid ester (such as dipentaerythritol hexaoxystearate), isostearic acid-cured castor , Monohydroxystearic acid-hardened castor oil, tri (caprylic-caprin-myristin-stearic acid) glyceride, myristyl lactate, hydrogenated castor oil of dimer dilinoleic acid, dimer dilinoleic acid (phytotellyl / isostearyl / cetyl / stearyl / behenyl) Phytosteryl oleate, di (phytosteryl-behenyl-2-octyldodecyl) N-lauroyl-L-glutamate and the like.

  The content of the oil component which is liquid at 25 ° C. is preferably 1% by mass or more in the entire composition from the viewpoint of maintaining the form as a water-in-oil type emulsified cosmetic, good feeling in use, and storage stability. 2% by mass or more is more preferable, 10% by mass or more is more preferable, 60% by mass or less is preferable, 50% by mass or less is more preferable, and 35% by mass or less is further preferable. Further, the content of the oil component liquid at 25 ° C. is preferably 1 to 60% by mass, more preferably 2 to 50% by mass, and still more preferably 10 to 35% by mass in the whole composition.

  The water-in-oil emulsified cosmetic of the present invention may contain, in addition to the above-mentioned components, components used in ordinary cosmetics, for example, other oil-based components, surfactants, water-soluble polymers, fragrances, humectants, cosmetic components. , A pharmaceutically active ingredient, an ultraviolet absorber, a thickener, a bactericide, a pH adjuster, an antioxidant, a preservative, and an inorganic salt.

The water-in-oil emulsified cosmetic of the present invention can be manufactured according to a usual method, and can be made into a liquid, emulsion, paste, cream, gel or other dosage form, and an emulsion, cream Is preferred.
Further, the water-in-oil type emulsified cosmetic of the present invention is a makeup base such as a makeup base, foundation, concealer, blusher, eyeshadow, mascara, eyeliner, eyebrow, overcoat agent, lipstick, etc .; It can be applied as an ultraviolet protection cosmetic such as a sunscreen. Above all, a makeup base and a liquid foundation are more preferable.
The water-in-oil type emulsified cosmetic of the present invention can be used alone or in superposition of powdered cosmetics such as liquid foundation, powder foundation, and white powder.
With respect to the above-described embodiments, the present invention further discloses the following compositions.

<1> The following components (A), (B), (C) and (D):
(A) silicone resin spherical elastic powder 0.1 to 30% by mass,
(B) an organic silicone resin 0.01 to 10% by mass,
(C) 0.1 to 20% by mass of zinc oxide having an average particle size of 10 to 100 nm,
(D) Glycerin fatty acid ester solid at 25 ° C. 0.1 to 20% by mass
A water-in-oil type emulsified cosmetic containing.

<2> The water-in-oil type emulsified cosmetic according to <1>, wherein the silicone resin spherical elastic powder of the component (A) preferably has a rubber elasticity of 5 to 80, and more preferably 10 to 50.
<3> The silicone resin spherical elastic powder of the component (A) preferably has an average particle diameter of 1 to 50 μm, more preferably 2 to 15 μm. The water-in-oil emulsion according to the above <1> or <2>. Cosmetics.
<4> The component (A) is preferably a silicone rubber powder or a silicone resin-coated silicone rubber powder, wherein (dimethicone / vinyl dimethicone) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) The water-in-oil type emulsified cosmetic according to any one of <1> to <3>, wherein a crosspolymer is more preferable.
<5> The content of the component (A) is preferably 0.3% by mass or more, more preferably 0.7% by mass or more, still more preferably 1% by mass or more, and more preferably 10% by mass in the whole composition. The following is preferable, 4 mass% is more preferable, and 3 mass% or less is still more preferable. The water-in-oil emulsion cosmetic of any one of said <1>-<4>.

<6> The organic silicone resin of the component (B) is preferably (B-1) an alkylsilsesquioxane resin, (B-2) trimethylsiloxysilicic acid, or (B-3) a fluorine-modified silicone resin. And (B-1) the water-in-oil emulsified cosmetic according to any one of <1> to <5>, wherein polypropylsilsesquioxane is more preferable.
<7> The content of the component (B) is preferably 0.1% by mass or more in the whole composition, more preferably 0.4% by mass or more, still more preferably 0.6% by mass, and 7% by mass. %, Preferably 4% by mass or less, more preferably 3% by mass or less, The water-in-oil type emulsified cosmetic according to any one of the above <1> to <6>.
<8> The water-in-oil emulsified cosmetic according to any one of <1> to <7>, wherein the zinc oxide of the component (C) preferably has an average particle diameter of 20 to 80 nm.
<9> The zinc oxide of the component (C) preferably has a specific surface area of 10 to 100 m ² / g, more preferably 15 to 95 m ² / g, any one of the above <1> to <8>. Of water-in-oil emulsion cosmetics.

<10> The zinc oxide of the component (C) is preferably a compound which has been subjected to a hydrophobic treatment with a fluorine compound, a silicone compound, a metal soap, an amino acid compound, lecithin, an alkylsilane, an oil agent, and an organic titanate. Surface-treated with silicone compounds such as siloxane, methyl hydrogen polysiloxane, cyclic silicone, organopolysiloxane modified at one or both ends with trialkoxy group, cross-linked silicone, silicone resin, fluorine-modified silicone resin, acrylic-modified silicone, etc. More preferably, the oil is surface-treated with dimethylpolysiloxane or methylhydrogenpolysiloxane, and even more preferably the oil is surface-treated with methylhydrogenpolysiloxane. The oil according to any one of <1> to <9> above. Middle water type Of cosmetics.
<11> The content of the component (C) is preferably 0.4% by mass or more in the entire composition, more preferably 0.7% by mass or more, still more preferably 1% by mass or more, and 10% by mass. The following is preferable, 7 mass% is more preferable, and 5 mass% or less is still more preferable. The water-in-oil emulsion cosmetic of any one of said <1>-<10>.

<12> The glycerin fatty acid ester of the component (D) is preferably a triester, more preferably a triglyceride of a fatty acid having 20 to 28 carbon atoms, more preferably a triglyceride of a fatty acid having 20 to 24 carbon atoms, and tribehenine is more preferable. The water-in-oil type emulsified cosmetic according to any one of the above <1> to <11>, which is more preferable.
<13> The content of the component (D) is preferably 0.2% by mass or more in the entire composition, more preferably 0.4% by mass or more, still more preferably 0.6% by mass or more. The water-in-oil type emulsified cosmetic according to any one of the above items <1> to <12>, preferably at most 4% by mass, more preferably at most 4% by mass, and still more preferably at most 3% by mass.

<14> The mass ratio (D) / (A) of the component (D) to the component (A) is preferably 0.05 or more, more preferably 0.1 or more, and still more preferably 0.2 or more. , More preferably 0.5 or more, preferably 8 or less, more preferably 6 or less, still more preferably 4 or less, and still more preferably 2.5 or less, the oil according to any one of the above <1> to <13>. Middle water type emulsified cosmetic.
<15> The mass ratio (D) / (B) of the component (D) to the component (B) is preferably 0.05 or more, more preferably 0.1 or more, and still more preferably 0.2 or more. , 0.3 or more, still more preferably 10 or less, more preferably 7 or less, still more preferably 5 or less, and still more preferably 3 or less. The water-in-oil according to any one of the above <1> to <14>. Type emulsified cosmetics.
<16> The content of water is preferably 10 to 85% by mass in the whole composition, more preferably 20 to 75% by mass, and still more preferably 30 to 65% by mass. The water-in-oil type emulsified cosmetic according to any one of the above.

Examples 1 to 9 and Comparative Examples 1 to 3
A water-in-oil type emulsified cosmetic (foundation) having the composition shown in Table 1 was manufactured, and when a foundation was applied to a woman who was worried about the appearance of pores, the appearance of pores was less noticeable, and the covering power of dark pores was improved. The pores were less noticeable after 6 hours, the coverage of dark pores after 6 hours, the lack of foundation in the pores, and the high temperature stability were evaluated. The results are shown in Table 1.

(Production method)
The oil phase component and the aqueous phase component were each heated and dissolved, and the powder component was added to the oil phase component and dispersed. The aqueous phase component was added thereto, and the mixture was emulsified by stirring with a homomixer, and then cooled to room temperature to obtain a water-in-oil type emulsified cosmetic (foundation).

(Evaluation method)
(1) Inconspicuous pore opening:
Five expert panelists carried out a sensory evaluation according to the following criteria on the inconspicuousness of pores immediately after the water-in-oil type emulsified cosmetic was applied to the skin. The results were shown as integrated values of five persons.
5; pores are not noticeable.
4: The pore opening is not so noticeable.
3: The pores are slightly conspicuous.
2: pores are noticeable.
1: The pores are very noticeable.

(2):
Five expert panelists sensory-evaluated the covering power of the darkened pores immediately after applying the water-in-oil type emulsified cosmetic to the skin according to the following criteria. The results were shown as integrated values of five persons.
5: The darkened pores can be covered firmly.
4: The darkening of the pores can be covered.
3: The darkening of the pores can be slightly covered.
2: Not enough to cover the darkened pores.
1: The darkened pores could not be covered.

(3) The pores are less noticeable after 6 hours:
After applying the water-in-oil type emulsified cosmetic to the skin, five expert panelists conducted a sensory evaluation on the inconspicuousness of the opening of pores after 6 hours, according to the following criteria. The results were shown as integrated values of five persons.
5; pores are not noticeable.
4: The pore opening is not so noticeable.
3: The pores are slightly conspicuous.
2: pores are noticeable.
1: The pores are very noticeable.

(4) Covering power of darkened pores after 6 hours:
After applying water-in-oil type emulsified cosmetic to the skin, five expert panelists evaluated sensory evaluation of the covering power of darkening of pores after 6 hours by the following criteria. The results were shown as integrated values of five persons.
5: The darkened pores can be covered firmly.
4: The darkening of the pores can be covered.
3: The darkening of the pores can be slightly covered.
2: Not enough to cover the darkened pores.
1: The darkened pores could not be covered.

(5) The foundation is not accumulated in the pores:
Five expert panelists sensory-evaluated the presence or absence of a foundation in pores after applying the water-in-oil type emulsified cosmetic to the skin according to the following criteria. The results were shown as integrated values of five persons.
5; foundation is not accumulated in pores.
4: The foundation is not accumulated much in the pores.
3: The foundation is slightly accumulated in the pores.
2: Foundation is accumulated in pores.
1: The foundation is considerably accumulated in the pores.

(6) High temperature stability:
The appearance of each water-in-oil emulsified cosmetic after storage at 45 ° C. for one month was visually observed and evaluated according to the following criteria.
3: No separation is seen in appearance.
2: Slight separation is observed in appearance.
1: Separation is remarkably observed in appearance.

Claims (6)

The following components (A), (B), (C) and (D):
(A) silicone resin spherical elastic powder 0.1 to 30% by mass,
(B) an organic silicone resin 0.01 to 10% by mass,
(C) 0.1 to 20% by mass of zinc oxide having an average particle size of 10 to 100 nm,
(D) Glycerin fatty acid ester solid at 25 ° C. 0.1 to 20% by mass
A water-in-oil type emulsified cosmetic wherein the mass ratio (D) / (A) of the component (D) to the component (A) is 0.05 to 8 .   The water-in-oil type emulsified cosmetic according to claim 1, wherein the component (A) has an average particle size of 1 to 50 µm. The water-in-oil type emulsified cosmetic according to claim 1 or 2 , wherein the component (D) is a triglyceride of a fatty acid having 20 to 28 carbon atoms. The water-in-oil type emulsified cosmetic according to any one of claims 1 to 3 , wherein the component (D) is tribehenine. The water-in-oil type emulsified cosmetic according to any one of claims 1 to 4 , wherein a mass ratio (D) / (B) of the component (D) to the component (B) is 0.05 to 10. The water-in-oil emulsified cosmetic according to any one of claims 1 to 5 , wherein the component (B) is polypropylsilsesquioxane.