Water-in-oil emulsified composition

Abstract

The present invention relates to a water-in-oil emulsion composition comprising the following components (A), (B), (C), (D) and (E): (A) an oil-soluble nonionic surfactant, (B) an oil agent in a solid or semi-solid state at 25°C, (C) a non-volatile oil in a liquid state at 25°C, (D) a carbonate, and (E) water.

Description

Technical Field

[0001] This invention relates to water-in-oil emulsion compositions. Background Technology

[0002] In order to cover pores, makeup products such as foundation must adhere firmly to the skin.

[0003] For example, Patent Document 1 describes an oil-in-water emulsion cosmetic containing a composite powder composed of particles of silicone particles coated with polysiloxane resin, and a non-volatile oil other than silicone oil, which can make the skin look bright and has excellent spreadability and adhesion, and can achieve the effect of concealing pores.

[0004] On the other hand, sunscreen cosmetics containing carbonates are known.

[0005] For example, Patent Document 2 describes a sunscreen cosmetic formulated with an inorganic ultraviolet scattering agent composed of hydrophobic particulate metal oxides, tubular alkaline magnesium carbonate, and an oil. Patent Document 3 describes a cosmetic composition having the function of protecting against UV-A and / or UV-B, wherein it contains at least one inorganic ultraviolet filter component and surface-reacted calcium carbonate.

[0006] These cosmetics enhance UV protection by using carbonates.

[0007] (Patent Document 1) Japanese Patent Application Publication No. 2014-172872

[0008] (Patent Document 2) Japanese Patent Application Publication No. 2011-236182

[0009] (Patent Document 3) Japanese Patent Publication No. 2020-506953 Summary of the Invention

[0010] This invention relates to a water-in-oil emulsion composition comprising the following components (A), (B), (C), (D), and (E):

[0011] (A) Lipophilic nonionic surfactants,

[0012] (B) Oils that are solid or semi-solid at 25°C

[0013] (C) A non-volatile oil that is liquid at 25°C.

[0014] (D) Carbonates,

[0015] (E) Water. Detailed Implementation

[0016] Existing emulsified cosmetics often feel slippery on the skin during application, resulting in insufficient adhesion and a lack of coverage around pores. Additionally, there is a persistent sticky feeling after application.

[0017] The inventors of this invention have discovered that by combining a lipophilic nonionic surfactant, an oil that is solid or semi-solid at 25°C, a non-volatile oil that is liquid at 25°C, and a carbonate, a water-in-oil emulsion composition that can solve the above-mentioned problems can be obtained.

[0018] The oil-in-water emulsion composition of the present invention reduces surface slippage during application, improves the adhesion to the skin after application, and can fully cover pores, further reducing the stickiness of the skin after application.

[0019] Furthermore, the term "surface slippage" refers to the sensation felt when applying a water-in-oil emulsion cosmetic to the face with fingers, where it spreads infinitely across the skin like a liquid oil, rather than exhibiting the actual feeling of the emulsion adhering to the skin while simultaneously spreading. Conversely, the term "close adhesion" refers to the fact that the water-in-oil emulsion adheres firmly to the skin after application, even during facial movements such as facial expressions, following the skin's movements without detaching from the surface, and without concentrating in specific areas such as large or small wrinkles, maintaining a secure bond.

[0020] Regarding the lipophilic nonionic surfactant of component (A) used in this invention, from the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the adhesion after application, and obtaining a stable water-in-oil emulsion composition, HLB is preferably 1 to 8, more preferably 2 to 7, and even more preferably 3 to 6.

[0021] Here, HLB [Hydrophilic-Lipophilic Balance] refers to the molecular weight of the hydrophilic portion of the total molecular weight of a surfactant, calculated using the Griffin formula. Furthermore, when the surfactant is composed of two or more nonionic surfactants, the HLB of the mixed surfactant is calculated as follows: The HLB of the mixed surfactant is obtained by arithmetic averaging the HLB values ​​of each nonionic surfactant based on their blending ratio.

[0022] Mixed HLB = Σ(HLBx×Wx) / ΣWx

[0023] HLBx represents the HLB value of nonionic surfactant X.

[0024] Wx represents the mass (g) of nonionic surfactant X with an HLBx value.

[0025] Examples of lipophilic nonionic surfactants for component (A) include: sorbitan fatty acid esters such as glycerol fatty acid esters, propylene glycol fatty acid esters, sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and sorbitan sesquioleate; polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyethylene glycol fatty acid esters, alkyl glycerol ethers, alkyl polyglycerol ethers, polyoxyethylene alkyl ethers, polyoxyethylene alkyl ether fatty acid esters, polyoxyethylene alkylamines, polyoxyethylene-methyl polysiloxane copolymers, and poly(oxyethylene / oxypropylene)-methyl polysiloxane copolymers; and polysiloxane surfactants such as alkyl-modified polyether-modified polysiloxanes and alkyl-chain co-modified polyether-modified polysiloxanes.

[0026] From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, and obtaining a stable water-in-oil emulsion composition, it is preferable to contain at least one or more surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants; more preferably, it contains at least one or more surfactants selected from sorbitan fatty acid esters and polyether-modified polysiloxanes; even more preferably, it contains at least one or more surfactants selected from sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and polyether-modified polysiloxanes; and even more preferably, it contains at least one or more surfactants selected from sorbitan monoisostearate and polyoxyethylene-methylpolysiloxane copolymers.

[0027] In addition, a combination of sorbitan fatty acid esters and polysiloxane surfactants is preferred.

[0028] The lipophilic nonionic surfactant for component (A) can be a commercially available product, such as: as a sorbitan monoisostearate, examples include: Span 120 (HLB4.7) (manufactured by CRODA); as a polyoxyethylene-methylpolysiloxane copolymer, examples include: KF-6015 (HLB4.5), KF-6017 (HLB4.5), KF-6028 (HLB4) (all manufactured by Shin-Etsu Chemical Co., Ltd.), SH3775M (HLB5) (manufactured by Toray Dow Corning); as a poly(oxyethylene / oxypropylene)-methylpolysiloxane copolymer, examples include: KF-6012 (HLB7) (manufactured by Shin-Etsu Chemical Co., Ltd.), DOWSIL BY22-008M (HLB2), ES-5226DM formulation Aid (HLB2) (all manufactured by Toray Dow Corning). Examples of alkyl-modified polyether-modified polysiloxanes include: KF-6038 (HLB3) (Shin-Etsu Chemical Co., Ltd.) and ABIL EM 90 (HLB5) (Evonik Co., Ltd.).

[0029] The lipophilic nonionic surfactant of component (A) can be one or more types. From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, and obtaining a stable water-in-oil emulsion composition, its content in the total composition is preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and preferably 8% by mass or less, more preferably 6.5% by mass or less, and even more preferably 5.5% by mass or less. Furthermore, the content of component (A) in the total composition is preferably 1 to 8% by mass, more preferably 1.5 to 6.5% by mass, and even more preferably 2 to 5.5% by mass.

[0030] Component (B) is an oil that is solid or semi-solid at 25°C.

[0031] The phrase "solid or semi-solid at 25°C" means that the viscosity at 25°C is greater than 10,000 mPa·s.

[0032] Here, viscosity was measured using a Type B viscometer (TVB-10, manufactured by Toki Sangyo Co., Ltd.) at rotor No. 4, 12 rpm, and 60 seconds (for values ​​above 50,000 mPa·s, rotor No. 4, 3 rpm, and 60 seconds).

[0033] Regarding oils that are solid at 25°C, there are no restrictions on their use as long as they are ingredients commonly used in cosmetics. Examples include ester waxes and hydrocarbon waxes. Examples of ester-containing oils that are solid at 25°C include animal waxes and plant waxes; examples of hydrocarbon-containing oils that are solid at 25°C include mineral waxes and synthetic waxes. More specifically, examples of ester-containing oils that are solid at 25°C include plant waxes such as shea butter, rice bran wax, carnauba wax, candelilla wax, and beeswax; examples of hydrocarbon-containing oils that are solid at 25°C include ceresin wax, paraffin waxes, microcrystalline wax, polyethylene wax, and polyolefin wax.

[0034] Examples of oils that are semi-solid at 25°C include: cholesterol isostearate, cholesterol hydroxystearate, macadamia nut oil fatty acid cholesterol ester, and cholesterol derivatives such as N-lauroyl-L-glutamic acid di(cholesterol ester / docosahexaenoic acid ester / octyldodecane ester).

[0035] N-Lauroyl-L-glutamic acid di(phytosterol ester / docosahexadecyl ester / 2-octyldodecyl ester), N-Lauroyl-L-glutamic acid di(phytosterol ester / 2-octyldodecyl ester), isostearate phytosterol ester, oleate phytosterol ester, dimer linoleic acid (phytosterol ester / isostearate / hexadecyl ester / stearate / docosahexadecyl ester) and other phytosterol derivatives;

[0036] Dipentaerythritol fatty acid esters such as hexaoxystearic acid dipentaerythritol ester and pinoresinic acid dipentaerythritol ester;

[0037] Triglycerides such as triglycerides (caprylic / capric / myristic / stearic acid), triglycerides (lanolin fatty acid), and triglycerides of triglycerides;

[0038] Partially hydrogenated triglycerides such as hydrogenated oils, lanolin, soft lanolin fatty acids, lanosterol derivatives, petrolatum, hydrogenated castor oil dimer linoleate, etc.

[0039] As ingredient (B), from the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, enhancing the coverage of pores, and reducing stickiness, it is further preferred to contain at least one or more of the following: plant waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, petrolatum, and hydrogenated castor oil dimer linoleate. More preferably, it contains at least one or more of the following: plant waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, and petrolatum. Further preferably, it contains at least one or more of the following: plant waxes, phytosterol derivatives, and triglycerides. More preferably, it contains at least one or more of the following: plant waxes and triglycerides. More preferably, it contains triglycerides.

[0040] In addition, it is preferred to contain at least one or more of the following: shea butter, dilinoleic acid (phytosterol ester / isostearin ester / hexadecyl ester / stearin ester / docosahexadecyl ester), and triterpenoid glyceride.

[0041] Component (B) may be one or more. From the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, enhancing pore coverage, and reducing stickiness, its content in the total composition is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, even more preferably 0.07% by mass or more, and preferably 8% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less. Furthermore, the content of component (B) in the total composition is preferably 0.01 to 8% by mass, more preferably 0.03 to 5% by mass, and even more preferably 0.07 to 3% by mass.

[0042] Component (C) is a non-volatile oil that is liquid at 25°C.

[0043] The phrase "liquid at 25°C" means that the viscosity at 25°C is below 10,000 mPa·s. Here, the viscosity was measured using a Type B viscometer (TVB-10M, manufactured by Toki Sangyo Co., Ltd.), with rotor No. 4, at 60 rpm for 60 seconds.

[0044] In addition, the term "non-volatile" refers to components whose evaporation rate at 25°C for 6 hours is less than 20%, as determined by the following method (1).

[0045] Method (1): Place 90 mm diameter filter paper in a 120 mm diameter glass petri dish, then place 1 g of sample on the filter paper and store in a 65% RH room (25 °C). Then, measure the residue of the sample after 6 hours and calculate the evaporation.

[0046] The non-volatile oils in component (C) can be any ingredients commonly used in cosmetics, such as: liquid paraffin, flowing isoparaffins, squalane, squalene, and other straight-chain or branched hydrocarbon oils; monoester oils such as ethylhexyl p-methoxycinnamate, octyl dodecyl myristate, isotriadecyl isononanoate, and isononyl isononanoate; diester oils such as neopentyl glycol didecanoate, propylene glycol didecanoate, and diisostearate malate; triester oils such as triglycerides (2-ethylhexanoate) and triglycerides (caprylic / capric acid); tetraester oils such as dipentaerythritol tetraisostearate; silicone oils such as dimethyl polysiloxane, octyl polymethylsiloxane, methylphenyl polysiloxane, methyl hydrogen polysiloxane, and higher alcohol-modified organopolysiloxanes; and fluorinated oils such as fluorinated polyethers and perfluoroalkyl ether polysiloxanes.

[0047] From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, and enhancing pore coverage, it is preferable to contain at least one or more of the following: linear or branched hydrocarbon oils, monoester oils, diester oils, triester oils, tetraester oils, and silicone oils. More preferably, it contains at least one or more of the following: linear or branched hydrocarbon oils, monoester oils, diester oils, and silicone oils. Further preferably, it contains at least one or more of the following: branched hydrocarbon oils, monoester oils, diester oils, and silicone oils. Even more preferably, it contains at least one or more of the following: flowing isoparaffins, ethylhexyl p-methoxycinnamate, methylphenyl polysiloxane, octyl polymethylsiloxane, neopentyl glycol didecanoate, and propylene glycol didecanoate.

[0048] One or more ingredients (C) may be used. From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, and enhancing pore coverage, its content in the total composition is preferably 0.5% by mass or more, more preferably 2% by mass or more, even more preferably 7% by mass or more, and preferably 35% by mass or less, more preferably 23% by mass or less, and even more preferably 15% by mass or less. Furthermore, the content of ingredient (C) in the total composition is preferably 0.5 to 35% by mass, more preferably 2 to 23% by mass, and even more preferably 7 to 15% by mass.

[0049] The carbonate in component (D) is preferably a divalent metal carbonate, such as calcium carbonate, magnesium carbonate, or barium carbonate. Among these, from the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, and enhancing pore coverage, it is preferable to contain at least one or more of calcium carbonate and magnesium carbonate, and more preferably calcium carbonate.

[0050] In addition, from the viewpoint of reducing the stickiness of the skin after application, it is preferable to contain at least one or more of calcium carbonate and magnesium carbonate, and more preferably magnesium carbonate.

[0051] In addition, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, enhancing the coverage of pores, and reducing stickiness, it is preferable to use calcium carbonate and magnesium carbonate in combination.

[0052] Furthermore, the carbonate in component (D) is used alone. When used as a surface treatment agent for powders or as a raw material for composite powders, the effects of the present invention cannot be obtained because the carbonate is not present alone in the composition.

[0053] There are no restrictions on the shape of the carbonate of component (D), and any shape such as spindle-shaped, rod-shaped, spherical, plate-shaped, needle-shaped, fibrous, or petal-shaped can be used.

[0054] Regarding the shape of the carbonate in component (D), from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, enhancing the coverage of pores, and reducing stickiness, it is preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, fibrous, or petal-shaped, more preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, or fibrous, and even more preferably spindle-shaped, rod-shaped, or plate-shaped.

[0055] In addition, regarding the volume average particle size of the carbonate, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, enhancing the coverage of pores, and reducing stickiness, it is preferably 0.1 to 50 μm, more preferably 1 to 30 μm, and even more preferably 6 to 20 μm.

[0056] Furthermore, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, enhancing pore coverage, and reducing stickiness, the long axis particle size of the carbonate relative to the average thickness (aspect ratio) is preferably 1 or more, more preferably 1.3 or more, and even more preferably 1.6 or more. It is also preferably 100 or less, more preferably 50 or less, and even more preferably 30 or less. Additionally, the long axis particle size of the carbonate relative to the average thickness (aspect ratio) is preferably 1 to 100, more preferably 1.3 to 50, and even more preferably 1.6 to 30.

[0057] Here, the volume average particle size was measured using a laser diffraction scattering particle size distribution analyzer (Horiba Manufacturing Co., Ltd., LA-920). In this invention, "volume average particle size" refers to the average particle size based on volume, which is the 50% median particle size.

[0058] In addition, aspect ratio is a value calculated by the ratio of the volume average particle size to the average thickness of the particles, and is defined by aspect ratio = (volume average particle size / average thickness).

[0059] In addition, the average thickness of the particles is determined by observing with a scanning electron microscope or a transmission electron microscope, and the average thickness of 10 to 50 parent particles is obtained.

[0060] The carbonates of component (D) can be commercially available products. For example, for calcium carbonate, examples include: slightly carbonated calcium carbonate (manufactured by Omi Chemical Industry Co., Ltd., volume average particle size 7.5 μm, spindle-shaped, aspect ratio 1.9), SCS-M5 (manufactured by Sakai Chemical Industry Co., Ltd., volume average particle size 5 μm, spherical, aspect ratio 1), etc.; for magnesium carbonate, examples include: heavy magnesium carbonate (manufactured by Kyowa Chemical Industry Co., Ltd., volume average particle size 16 μm, plate-shaped, aspect ratio 26), etc.

[0061] One or more ingredients (D) may be used. From the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, enhancing pore coverage, and reducing stickiness, its content in the total composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less. Furthermore, the content of ingredient (D) in the total composition is preferably 0.1 to 10% by mass, more preferably 0.5 to 8% by mass, and even more preferably 1.2 to 5% by mass.

[0062] In this invention, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, enhancing pore coverage, and reducing stickiness, the mass ratio (B) / (D) of component (B) to component (D) is preferably 0.007 or more, more preferably 0.01 or more, further preferably 0.015 or more, even more preferably 0.02 or more, and preferably 50 or less, more preferably 30 or less, even more preferably 10 or less, and even more preferably 5 or less. Furthermore, the mass ratio (B) / (D) of component (B) to component (D) is preferably 0.007 to 50, more preferably 0.01 to 30, even more preferably 0.015 to 10, and even more preferably 0.02 to 5.

[0063] In this invention, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin's adhesion after application, enhancing pore coverage, and reducing stickiness, the mass ratio (C) / (D) of component (C) to component (D) is preferably 0.1 or more, more preferably 0.3 or more, further preferably 1.5 or more, even more preferably 2.3 or more, and preferably 100 or less, more preferably 50 or less, even more preferably 20 or less, and even more preferably 10 or less. Furthermore, the mass ratio (C) / (D) of component (C) to component (D) is preferably 0.1 to 100, more preferably 0.3 to 50, even more preferably 1.5 to 20, and even more preferably 2.3 to 10.

[0064] In this invention, the water content of component (E) in the total composition is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, even more preferably 45% by mass or more, and preferably 80% by mass or less, more preferably 70% by mass or less, even more preferably 60% by mass or less, and even more preferably 55% by mass or less. Furthermore, the content of component (E) in the total composition is preferably 20-80% by mass, more preferably 30-70% by mass, even more preferably 40-60% by mass, and even more preferably 45-55% by mass.

[0065] The water-in-oil emulsion composition of the present invention may further contain coloring pigments.

[0066] Coloring pigments are commonly used ingredients in cosmetics. Examples include inorganic pigments such as titanium dioxide, zinc oxide, cerium oxide, aluminum oxide, iron oxide yellow, iron oxide black, iron oxide red, Prussian blue, ultramarine, chromium oxide, and chromium hydroxide metal oxides; metal complexes such as manganese violet and cobalt titanate; carbon black; and red pigments such as Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, and Red No. 226. Synthetic organic pigments such as No. 227, No. 228, No. 230, No. 401, No. 405, No. 505, No. 203, No. 204, No. 205, No. 4, No. 5, No. 401, No. 1, and No. 404; natural organic pigments such as β-carotene, caramel, and capsicum pigment; and also examples of composites of these pigments, as well as composite pigments formed by combining these pigments with pearlescent pigments. Regarding processed pearlescent pigments, examples include natural or synthetic inorganic powders such as mica, phlogopite, talc, silica, sericite, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, and plate-shaped alumina powder. Specific examples of composite pigments include: mica coated with titanium oxide, mica coated with iron oxide, mica titanium coated with iron oxide, synthetic phlogopite coated with iron oxide, chromium oxide coated with mica titanium, glass powder coated with titanium oxide, glass powder coated with iron oxide, glass powder containing titanium oxide, and glass powder containing iron oxide.

[0067] Among these, metal oxides are preferred, more preferably containing at least one or more selected from titanium oxide, zinc oxide, iron oxide yellow, iron oxide black, and iron oxide red, and even more preferably containing at least one or more selected from titanium oxide, iron oxide yellow, iron oxide black, and iron oxide red.

[0068] These coloring pigments can be used directly or after undergoing a hydrophobic treatment. Examples of hydrophobic treatments include: fluorine compound treatment, polysiloxane treatment, alkyl treatment, alkylsilane treatment, metal soap treatment, water-soluble polymer treatment, amino acid treatment, acylated amino acid treatment, lecithin treatment, organotitanate treatment, polyol treatment, acrylic resin treatment, methacrylic resin treatment, and polyurethane resin treatment.

[0069] Regarding the hydrophobic treatment, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving skin adhesion after application, enhancing pore coverage, and reducing stickiness, it is preferable to perform the hydrophobic treatment using at least one or more of the following: polysiloxane treatment, amino acid treatment, and acylated amino acid treatment. More preferably, it is preferable to perform the hydrophobic treatment using at least one or more of the following: polysiloxane treatment and acylated amino acid treatment. Furthermore, from the viewpoints of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving skin adhesion after application, enhancing pore coverage, and reducing skin stickiness, it is preferable to use a combination of polysiloxane treatment and acylated amino acid treatment.

[0070] When applying hydrophobic treatment to coloring pigments, conventional methods can be used.

[0071] One or more coloring pigments may be used. From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, improving the skin adhesion after application, enhancing the coverage of pores, and reducing stickiness, the content of the pigment in the total composition is preferably 1 to 30% by mass, more preferably 3 to 25% by mass, even more preferably 5 to 20% by mass, and even more preferably 7 to 15% by mass.

[0072] The water-in-oil emulsion composition of the present invention may further contain a film-forming agent, which can reduce the surface slippage of the water-in-oil emulsion composition on the skin during application and improve the skin's adhesion after application.

[0073] Film-forming agents are commonly used ingredients in cosmetics, and examples include fluorinated polysiloxane resins, trimethylsiloxysilicates, acrylic polysiloxane resins, and alkyl silsesquioxane resins.

[0074] Fluorine-modified polysiloxane resins are preferably those having the structure shown in the following general formula (1).

[0075] R 1 g SiO (4-g) / 2 (1)

[0076] (where R is in the formula) 1 Represents hydrocarbon groups, phenyl groups, hydroxyl groups, or those with the general formula -R, having 1 to 8 carbon atoms. 2 -Rf(R 2 Rf represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf represents a perfluorinated alkyl group having 1 to 8 carbon atoms, derived from hydroxyl groups and the general formula -R. 2 -Rf is any of the required functional groups; g is an average of 1.0 ≤ g ≤ 1.8. Additionally, R... 1 Same or different.

[0077] As such a fluorinated polysiloxane resin, the preferred one is the cosmetic ingredient name "trifluoropropyldimethyl / trimethylsiloxysilicate" (INCI name: Trifluoropropyldimethyl / Trimethylsiloxysilicate), and commercially available products such as XS66-B8226 (50% by mass decamethylcyclopentasiloxane solution) and XS66-B8636 (50% by mass dimethylpolysiloxane (10cs) solution) (both manufactured by Momentive Advanced Materials Co., Ltd.) can be used.

[0078] As a trimethylsiloxane silicate, it is preferably a compound having a cross-linked structure with a siloxane structure as the main backbone, wherein the cross-linked structure is based on [(CH3)3SiO 1 / 2 ] S [SiO2] T This indicates that S is 1 to 3 and T is 0.5 to 8.

[0079] As for trimethylsiloxysilicate, the preferred cosmetic ingredient name is "trimethylsiloxysilicate" (INCI name: Trimethylsiloxysilicate). Commercially available products such as KF-7312T (60% by mass methyl polytrimethylsiloxane solution), KF-7312L (50% dimethyl polysiloxane (2cs) solution), KF-7312J (50% decamethylcyclopentasiloxane solution), and KF-7312K (50% dimethyl polysiloxane (6cs) solution) (all manufactured by Shin-Etsu Chemical Industry Co., Ltd.) can be used.

[0080] Examples of acrylic polysiloxane resins include vinyl polymers with carbosiloxane dendritic macromolecular structures in the side chains, and acrylic-polysiloxane graft copolymers.

[0081] Examples of vinyl polymers having a carbosiloxane dendritic macromolecular structure in the side chain include those described in Japanese Patent Application Publication No. 11-1530 and Japanese Patent Application Publication No. 2000-63225.

[0082] As a vinyl polymer having a carbosiloxane dendritic macromolecular structure in the side chain, polysiloxane dendritic macromolecular-acrylic acid copolymer is preferred, and more preferably, it is a cosmetic ingredient name "(acrylate / polytrimethylsiloxymethacrylate) copolymer" (INCI name: Acrylates / PolytrimethylsiloxymethacrylateCopolymer). Commercially available products such as FA4001CM (30% decamethylcyclopentasiloxane solution), FA4002ID (40% isododecane solution), and DOWSIL FA 4003DM Silicone Acrylate (40% dimethylpolysiloxane (2cs) solution) (all manufactured by Dow Toray Corporation) can be used.

[0083] Regarding acrylic acid-polysiloxane graft copolymers, examples include the components described in Japanese Patent Application Publication No. 2-25411.

[0084] Regarding acrylic-polysiloxane graft copolymers, the preferred names are cosmetic ingredient names such as "(acrylate / dimethicone) copolymer" (INCI name: Acrylates / Dimethicone Copolymer). Commercially available products such as KP545 (30% by mass decamethylcyclopentasiloxane solution), KP549 (40% by mass methyl polytrimethylsiloxane solution), and KP550 (40% by mass isododecane solution) (all manufactured by Shin-Etsu Chemical Industry Co., Ltd.) can be used pre-dissolved in a solvent.

[0085] Regarding alkyl silsesquioxane resins, for example, the components described in Japanese Patent Application Publication No. 4-312511 can be used. Specifically, relative to R... 3 SiO 1.5 Organopolysilsesquioxanes containing silanol groups (where R is a unit) 3 (representing 100 parts by mass of substituted (or unsubstituted) monovalent hydrocarbon groups, making (R) 4 3Si) a Z (where R is in the formula) 4 The symbol represents a substituted (or unsubstituted) monovalent hydrocarbon group; 'a' indicates 1 or 2; when 'a' is 1, 'Z' represents a hydrogen atom, a hydroxyl group, or a hydrolyzable group; when 'a' is 2, 'Z' represents -O-, -N(X)-, or -S-. Wherein, X represents a monovalent hydrocarbon group with 1 to 4 hydrogen atoms or R. 4 The component obtained by reacting 5 to 100 parts by mass of the silicone compound shown in 3Si-) is, for example, obtained by reacting R 3 SiO 1.5 Unit 50–99 mol% and R 4 3SiO0.5 Polysiloxane resins composed of unit 1 to 50 mol% etc.

[0086] Regarding alkyl silsesquioxane resins, the preferred cosmetic ingredient name is "polypropyl silsesquioxane cyclopentasiloxane" (INCI name: POLYPROPYLSILSESQUIOXANE CYCLOPENTASILOXANE). Commercially available products include 670FLUID (manufactured by Dow Toray), which is a polypropyl silsesquioxane; and DOWSIL MQ-1640FLAKE RESIN (a mixture of 37% by mass of polypropyl silsesquioxane and 63% by mass of trimethylsiloxysilicate) (manufactured by Dow Toray), which is a mixture of polypropyl silsesquioxane and trimethylsiloxysilicate.

[0087] Regarding film-forming agents, from the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application and improving the skin's adhesion after application, it is preferable to contain at least one or more selected from trimethylsiloxysilicate, acrylic polysiloxane resin, and alkyl silsesquioxane resin, more preferably acrylic polysiloxane resin, and even more preferably vinyl polymers having a carbosiloxane dendritic macromolecular structure in the side chain.

[0088] One or more film-forming agents may be used. From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application and improving the skin's adhesion after application, the content of the agent is preferably 0.1 to 10% by mass in the total composition, more preferably 0.5 to 7% by mass, and even more preferably 1.5 to 4% by mass.

[0089] The water-in-oil emulsion composition of the present invention may further contain volatile oils, which can reduce the surface slippage of the water-in-oil emulsion composition on the skin when applied.

[0090] Here, “volatility” means that the evaporation rate at 25°C for 6 hours is more than 20%, as determined by the following method (1).

[0091] Method (1): Place 90 mm diameter filter paper in a 120 mm diameter glass petri dish, then place 1 g of sample on the filter paper and store in a 65% RH room (25 °C). Then, measure the residue of the sample after 6 hours and calculate the evaporation.

[0092] Volatile oils can be any ingredients commonly used in cosmetics, such as silicone oils, hydrocarbon oils, and ether oils.

[0093] Examples of silicone oils include: chain-like dimethyl polysiloxanes and cyclic dimethyl polysiloxanes. Chain-like dimethyl polysiloxanes can be in any form, either linear or branched. Examples of linear silicone oils include dimethyl polysiloxane (1.5cs) and dimethyl polysiloxane (2cs). Examples of branched silicone oils include methyl polytrimethylsiloxane, tris(trimethylsiloxy)methylsilane, and tetra(trimethylsiloxy)silane. Examples of cyclic dimethyl polysiloxanes include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecylcyclohexasiloxane.

[0094] Examples of hydrocarbons include isododecane, isotridecane, isohexadecane, light isoalkanes, and light mobile isoalkanes. Examples of ether oils include ethyl perfluorobutyl ether.

[0095] From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, it is preferable to contain at least one or more of silicone oil and hydrocarbon oil, more preferably to contain at least one or more of dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, isododecane, and light flowable isoparaffins, and even more preferably to contain at least one or more of dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, and light flowable isoparaffins.

[0096] One or more volatile oils may be used. From the viewpoint of reducing the surface slippage of the water-in-oil emulsion composition on the skin during application, its content in the total composition is preferably 1 to 30% by mass, more preferably 3 to 20% by mass, and even more preferably 5 to 15% by mass.

[0097] For the water-in-oil emulsion composition of the present invention, from the viewpoint of environmental protection and excellent user experience, the content of organic resin powder in the total composition is preferably 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably substantially free of organic resin powder.

[0098] Furthermore, the content of spherical organic resin powder in the total composition is preferably 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably substantially free of spherical organic resin powder.

[0099] Regarding organic resin powders, examples include cross-linked or non-cross-linked organic resin powders selected from one or more polymers or copolymers selected from polyamide resin, nylon resin, polyester resin, polyethylene resin, polytetrafluoroethylene resin, polypropylene resin, polystyrene resin, benzoguanamine resin, polymethylbenzoguanamine resin, polyurethane resin, vinyl resin, fluororesin, acrylic resin, melamine resin, butyl acrylate-vinyl acetate copolymer, styrene-acrylic acid copolymer, polysiloxane resin, and divinylbenzene-styrene copolymer.

[0100] In addition to the above-mentioned components, the oil-in-water emulsion composition of the present invention may also contain components commonly used in cosmetics, such as: talc and other body pigments; powders, polymers, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, moisturizers, cooling agents, etc., other than the above-mentioned components.

[0101] The water-in-oil emulsion composition of the present invention can be manufactured by conventional methods and can be formed into dosage forms such as liquid, emulsion, paste, cream, gel, and solid, preferably paste, cream, or solid.

[0102] The water-in-oil emulsion composition of the present invention can be used as a water-in-oil emulsion cosmetic, and is applicable to, for example, cosmetic bases, foundations, concealers, blushes, eyeshadows, mascaras, eyeliners, eyebrow pencils, protective film agents, lipsticks, and other color cosmetics; and sunscreen lotions, sunscreen creams, and other UV-protective cosmetics. It is preferably used as a color cosmetic.

[0103] Regarding the above embodiments, the present invention further discloses the following compositions.

[0104] <1> A water-in-oil emulsion composition, comprising the following components (A), (B), (C), (D) and (E):

[0105] (A) Lipophilic nonionic surfactants,

[0106] (B) Oils that are solid or semi-solid at 25°C

[0107] (C) A non-volatile oil that is liquid at 25°C.

[0108] (D) Carbonates,

[0109] (E) Water.

[0110] <2> In the water-in-oil emulsion composition described in <1> above, the HLB of component (A) is preferably 1 to 8, more preferably 2 to 7, and even more preferably 3 to 6.

[0111] <3> The water-in-oil emulsion composition as described in <1> or <2> above, wherein component (A) preferably contains at least one or more of the following: sorbitan fatty acid esters and polysiloxane surfactants; more preferably, it contains at least one or more of the following: sorbitan fatty acid esters and polyether-modified polysiloxanes; even more preferably, it contains at least one or more of the following: sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and polyether-modified polysiloxanes; and even more preferably, it contains at least one or more of the following: sorbitan monoisostearate and polyoxyethylene-methylpolysiloxane copolymers.

[0112] <4> The water-in-oil emulsion composition described in any of <1> to <3> above, wherein component (A) is preferably a combination of sorbitan fatty acid ester and polysiloxane surfactant.

[0113] <5> The water-in-oil emulsion composition described in any one of <1> to <4> above, wherein the content of component (A) in the total composition is preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and preferably 8% by mass or less, more preferably 6.5% by mass or less, and even more preferably 5.5% by mass or less.

[0114] <6> The water-in-oil emulsion composition described in any one of <1> to <5> above, wherein component (B) preferably contains at least one or more selected from plant waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, petrolatum, and hydrogenated castor oil dimer linoleate; more preferably, it contains at least one or more selected from plant waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, and petrolatum; even more preferably, it contains at least one or more selected from plant waxes, phytosterol derivatives, and triglycerides; even more preferably, it contains at least one or more selected from plant waxes and triglycerides; and even more preferably, it contains triglycerides.

[0115] <7> The water-in-oil emulsion composition described in any one of <1> to <5> above, wherein component (B) preferably contains at least one or more of the following: shea butter, dilinoleic acid (phytosterol ester / isostearic acid ester / hexadecyl ester / stearic acid ester / docosahexadecyl ester), and triterpenoid glyceryl ester.

[0116] <8> The water-in-oil emulsion composition described in any one of <1> to <7> above, wherein the content of component (B) in the total composition is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, even more preferably 0.07% by mass or more, and preferably 8% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less.

[0117] <9> The water-in-oil emulsion composition described in any one of <1> to <8> above, wherein component (C) preferably contains at least one or more of the following: linear or branched hydrocarbon oils, monoester oils, diester oils, triester oils, tetraester oils, and silicone oils; more preferably, it contains at least one or more of the following: linear or branched hydrocarbon oils, monoester oils, diester oils, and silicone oils; even more preferably, it contains at least one or more of the following: branched hydrocarbon oils, monoester oils, diester oils, and silicone oils; and even more preferably, it contains at least one or more of the following: flowing isoparaffins, ethylhexyl p-methoxycinnamate, methylphenyl polysiloxane, octyl polymethylsiloxane, neopentyl glycol didecanoate, and propylene glycol didecanoate.

[0118] <10> The water-in-oil emulsion composition described in any one of <1> to <9> above, wherein the content of component (C) in the total composition is preferably 0.5% by mass or more, more preferably 2% by mass or more, even more preferably 7% by mass or more, and preferably 35% by mass or less, more preferably 23% by mass or less, and even more preferably 15% by mass or less.

[0119] <11> The water-in-oil emulsion composition described in any of <1> to <10> above, wherein component (D) preferably contains at least one or more selected from calcium carbonate and magnesium carbonate.

[0120] <12> The water-in-oil emulsion composition described in any of <1> to <11> above, wherein component (D) is preferably a combination of calcium carbonate and magnesium carbonate.

[0121] <13> The water-in-oil emulsion composition described in any one of <1> to <12> above, wherein the content of component (D) in the total composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less.

[0122] <14> The water-in-oil emulsion composition described in any one of <1> to <13> above, wherein the mass ratio (B) / (D) of component (B) to component (D) is preferably 0.007 or more, more preferably 0.01 or more, even more preferably 0.015 or more, even more preferably 0.02 or more, and preferably 50 or less, more preferably 30 or less, even more preferably 10 or less, even more preferably 5 or less.

[0123] <15> The water-in-oil emulsion composition described in any one of <1> to <14> above, wherein the mass ratio (C) / (D) of component (C) to component (D) is preferably 0.1 or more, more preferably 0.3 or more, even more preferably 1.5 or more, even more preferably 2.3 or more, and preferably 100 or less, more preferably 50 or less, even more preferably 20 or less, even more preferably 10 or less.

[0124] <16> The water-in-oil emulsion composition described in any one of <1> to <15> above, wherein the water content of component (E) in the total composition is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, even more preferably 45% by mass or more, and preferably 80% by mass or less, more preferably 70% by mass or less, even more preferably 60% by mass or less, even more preferably 55% by mass or less.

[0125] <17> The water-in-oil emulsion composition described in any one of <1> to <16> above preferably contains a coloring pigment, which is preferably a metal oxide, preferably containing at least one or more selected from titanium oxide, zinc oxide, iron oxide yellow, iron oxide black, and iron oxide red, and more preferably containing at least one or more selected from titanium oxide, iron oxide yellow, iron oxide black, and iron oxide red.

[0126] <18> The water-in-oil emulsion composition described in <17> above, wherein the coloring pigment is preferably hydrophobically treated, more preferably hydrophobically treated using at least one or more of the following: polysiloxane treatment, amino acid treatment, and acylated amino acid treatment, and even more preferably hydrophobically treated using at least one or more of the following: polysiloxane treatment and acylated amino acid treatment.

[0127] <19> The water-in-oil emulsion composition as described in <17> or <18> above, wherein the content of the coloring pigment in the total composition is preferably 1 to 30% by mass, more preferably 3 to 25% by mass, even more preferably 5 to 20% by mass, and even more preferably 7 to 15% by mass.

[0128] <20> The water-in-oil emulsion composition described in any one of <1> to <19> above preferably further contains a film-forming agent, which is preferably a fluorinated polysiloxane resin, trimethylsiloxysilicate, acrylic polysiloxane resin, or alkylsilsesquioxane resin, more preferably contains at least one or more selected from trimethylsiloxysilicate, acrylic polysiloxane resin, or alkylsilsesquioxane resin, further preferably acrylic polysiloxane resin, and even more preferably a vinyl polymer having a carbonyl siloxane dendritic macromolecular structure in the side chain.

[0129] <21> In the water-in-oil emulsion composition described in <20> above, the content of the film-forming agent in the total composition is preferably 0.1 to 10% by mass, more preferably 0.5 to 7% by mass, and even more preferably 1.5 to 4% by mass.

[0130] <22> The water-in-oil emulsion composition described in any one of <1> to <21> above preferably further contains a volatile oil, which preferably contains at least one or more selected from silicone oil and hydrocarbon oil, more preferably contains at least one or more selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, isododecane, and light mobile isoparaffins, and even more preferably contains at least one or more selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, and light mobile isoparaffins.

[0131] <23> The water-in-oil emulsion composition described in <22> above, wherein the content of volatile oil in the total composition is preferably 1 to 30% by mass, more preferably 3 to 20% by mass, and even more preferably 5 to 15% by mass.

[0132] <24> The water-in-oil emulsion composition described in any one of <1> to <23> above, wherein the content of organic resin powder in the total composition is preferably 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably substantially free of organic resin powder.

[0133] <25> The water-in-oil emulsion composition described in any one of <1> to <24> above, wherein the content of spherical organic resin powder in the total composition is preferably 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably substantially free of spherical organic resin powder.

[0134] <26> The water-in-oil emulsion composition described in any of <1> to <25> above is a water-in-oil emulsion cosmetic.

[0135] <27> A water-in-oil emulsion composition, wherein,

[0136] It contains the following components (A), (B), (C), (D) and (E):

[0137] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 1-8% by mass

[0138] (B) Oils that are solid or semi-solid at 25°C: 0.01–8% by mass

[0139] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0140] (D) 0.1–10% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0141] (E) Water.

[0142] <28> A water-in-oil emulsion composition, wherein,

[0143] It contains the following components (A), (B), (C), (D) and (E):

[0144] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 1-8% by mass

[0145] (B) Oils that are solid or semi-solid at 25°C: 0.01–8% by mass

[0146] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0147] (D) 0.1–10% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0148] (E) Water,

[0149] And coloring pigments 1-30% by mass.

[0150] <29> A water-in-oil emulsion composition, wherein,

[0151] It contains the following components (A), (B), (C), (D) and (E):

[0152] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 2–5.5% by mass

[0153] (B) Oils that are solid or semi-solid at 25°C: 0.07–3% by mass

[0154] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0155] (D) 1.2–5% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0156] (E) Water.

[0157] <30> A water-in-oil emulsion composition, wherein,

[0158] It contains the following components (A), (B), (C), (D) and (E):

[0159] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 1-8% by mass

[0160] (B) Oils selected from at least one or two of the following: plant waxes, phytosterol derivatives, and triglycerides, which are solid or semi-solid at 25°C: 0.01–8% by mass.

[0161] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0162] (D) 0.1–10% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0163] (E) Water.

[0164] <31> A water-in-oil emulsion composition, wherein,

[0165] It contains the following components (A), (B), (C), (D) and (E):

[0166] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 2–5.5% by mass

[0167] (B) Oils selected from at least one or two of the following: plant waxes, phytosterol derivatives, and triglycerides, which are solid or semi-solid at 25°C: 0.07–3% by mass.

[0168] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0169] (D) 1.2–5% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0170] (E) Water.

[0171] <32> A water-in-oil emulsion composition, wherein,

[0172] It contains the following components (A), (B), (C), (D) and (E):

[0173] (A) At least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants: 2–5.5% by mass

[0174] (B) Oils selected from at least one or two of the following: plant waxes, phytosterol derivatives, and triglycerides, which are solid or semi-solid at 25°C: 0.07–3% by mass.

[0175] (C) Non-volatile oil that is liquid at 25°C: 0.5–35% by mass

[0176] (D) 1.2–5% by mass of at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

[0177] (E) Water,

[0178] Furthermore, the mass ratio (B) / (D) of component (B) to component (D) is 0.02 to 5.

[0179] <33> Use of any one of <1> to <32> above as a water-in-oil emulsion cosmetic.

[0180] <34> Use of any one of <1> to <32> above as a color cosmetic.

[0181] <35> An application for cosmetics, wherein the oil-in-water emulsion composition described in any one of <1> to <32> above is applied to the skin, preferably to the face.

[0182] <36> Use of any one of <1> to <32> above in the manufacture of a water-in-oil emulsion composition.

[0183] [Example]

[0184] [Examples 1-13 and Comparative Example 1]

[0185] Oil-in-water emulsion cosmetics with the compositions shown in Tables 1 and 2 were manufactured, and their degree of non-slippage during application, skin adhesion after application, pore coverage, and non-stickiness after application were evaluated. The results are combined and recorded in Tables 1 and 2.

[0186] (Preparation method)

[0187] An oil phase mixture was prepared by heating and stirring components (A), (B), (C), and other oily components at 80°C. A pre-crushed and mixed powder phase was then added to the oil phase mixture, and the mixture was stirred using a homogenizer. Next, an aqueous phase heated to 80°C was added, and after mixing, the mixture was cooled to room temperature to obtain a water-in-oil emulsion cosmetic.

[0188] (Evaluation Method)

[0189] (1) The degree of no surface slippage during application

[0190] Three professional judges used their fingers to take 0.3g of each oil-in-water emulsion cosmetic and evaluated the degree of smoothness and lack of slippage when applied to the face, according to the following criteria. The results were the sum of the scores from the three professional judges.

[0191] In addition, the so-called "surface slippage sensation" refers to the feeling of an oil-in-water emulsion cosmetic spreading infinitely on the skin like a liquid oil when applied to the face with fingers or other means, rather than the actual feeling of the oil-in-water emulsion cosmetic adhering to the skin while spreading.

[0192] 5: There is a noticeable lack of surface slippage.

[0193] 4: There was almost no feeling of surface slippage.

[0194] 3: I don't really feel any slippage on the surface.

[0195] 2: I can feel a slight slippage on the surface.

[0196] 1: You can clearly feel the surface slipping.

[0197] (2) The feeling of close contact with the skin after application

[0198] Three professional judges applied 0.3g of each oil-in-water emulsion cosmetic to their faces using their fingers, spreading the product. The judges then evaluated the skin's adherence to the applied product according to the following criteria. The final result was the combined score of the three judges.

[0199] In addition, the so-called "close contact" means that the oil-in-water emulsion composition adheres to the skin after application, and even when the facial skin moves due to changes in facial expressions, it can still follow the movement of the skin without falling off the skin surface, and it does not concentrate in certain areas such as large or small wrinkles, but adheres firmly.

[0200] 5: A distinct feeling of close contact can be felt.

[0201] 4: There is a strong sense of closeness.

[0202] 3: I felt a sense of closeness.

[0203] 2: I don't really feel a sense of closeness.

[0204] 1: I clearly did not feel any sense of close contact.

[0205] (3) Pore coverage

[0206] Three professional judges applied 0.3g of each oil-in-water emulsion cosmetic to their faces using their fingers, spreading the product. The pore-covering ability was evaluated according to the following criteria. The results were the sum of the scores from the three professional judges.

[0207] 5: My pores seem to be noticeably hidden.

[0208] 4: My pores feel like they're being hidden.

[0209] 3: My pores seem to be slightly hidden.

[0210] 2: My pores don't seem to be well hidden.

[0211] 1: My pores are noticeably not hidden.

[0212] (4) The degree to which the skin feels non-sticky after application:

[0213] Three professional judges applied 0.3g of each water-in-oil emulsion cosmetic to their faces using their fingers, then touched the skin after application. The degree of non-stickiness was evaluated according to the following criteria. The results were the sum of the scores from the three professional judges.

[0214] 5: There was no stickiness at all.

[0215] 4. There is almost no stickiness.

[0216] 3: It doesn't feel sticky.

[0217] 2: Slightly sticky.

[0218] 1: It feels noticeably sticky.

[0219]

[0220]

[0221]

[0222]

[0223] *1: Sorbitan monoisostearate: manufactured by CRODA, Span 120.

[0224] *2: Polyoxyethylene-methylpolysiloxane copolymer: Shin-Etsu Chemical Industry Co., Ltd., KF-6017.

[0225] *3: Triglycerides of Sanshanheynic Acid: manufactured by CRODA, SYNCROWAX HR-C.

[0226] *4: Dimeric linoleic acid (phytosterol ester / isostearyl ester / hexadecyl ester / stearyl ester / docosahexadecyl ester): manufactured by Nippon Seika Co., Ltd., PLANDOOL-H.

[0227] *5: 2-Ethylhexyl p-methoxycinnamic acid: manufactured by BASF, Uvinul MC80.

[0228] *6: Methylphenyl polysiloxane: Dow Toray, DOWSIL FZ-209.

[0229] *7: Dimethyl polysiloxane (2cs): Shin-Etsu Chemical Industry Co., Ltd., KF-96L-2cs.

[0230] *8: Light, mobile isoparaffins: manufactured by Nippon Oil Company, PARLEAM 4.

[0231] *9: (Acrylic ester / polytrimethylsiloxane methacrylate) copolymer·polydimethylsiloxane mixture: Dow Toray, DOWSIL FA 4003DM Silicone Acrylate (40% by mass dimethylpolysiloxane (2cs) solution).

[0232] *10: Polydimethylsiloxane-stearoylglutamate disodium salt composite-treated titanium dioxide: Made by Miho Chemical Co., Ltd., SA / NAI-TR-10MIBRID COLOR POWDER.

[0233] *11: Hydrogenated polydimethylsiloxane treated titanium dioxide: manufactured by Daito Kasei Corporation, SI01-2 TIO2 MT-500SA.

[0234] *12: Polydimethylsiloxane-stearoylglutamate disodium salt composite treatment of iron oxide red: Made by Miho Chemical Co., Ltd., SA / NAI-R-10MIBRID COLOR POWDER.

[0235] *13: Polydimethylsiloxane-stearoylglutamate disodium complex-treated iron oxide yellow: Made by Miho Chemical Co., Ltd., SA / NAI-Y-10MIBRID COLOR POWDER.

[0236] *14: Polydimethylsiloxane-stearoylglutamate disodium salt composite-treated iron oxide black: Made by Miho Chemical Co., Ltd., SA / NAI-B-10MIBRID COLOR POWDER.

[0237] *15: Polydimethylsiloxane-stearoylglutamate disodium salt composite-treated talc: Miyo Kasei Corporation, SA / NAI-TA-46R MIBRID COLOR POWDER.

[0238] *16: Polydimethylsiloxane treated silica: Miyo Chemical Co., Ltd., A-SB-300 (7%).

[0239] *17: Calcium carbonate: Omi Chemical Industry Co., Ltd., slightly oxidized calcium carbonate (volume average particle size 7.5 μm, spindle-shaped, aspect ratio 1.9).

[0240] *18: Calcium carbonate: Sakai Chemical Industry Co., Ltd., SCS-M5 (volume average particle size 5μm, spherical, aspect ratio 1).

[0241] *19: Magnesium carbonate: Heavy magnesium carbonate manufactured by Kyowa Chemical Industry Co., Ltd. (volume average particle size 16μm, plate-shaped, aspect ratio 26).

[0242] [Formula Examples 1-4]

[0243] The water-in-oil emulsion cosmetics with the compositions shown in Table 3 were manufactured in the same manner as in Examples 1-13.

[0244] All the obtained oil-in-water emulsion cosmetics did not slip on the surface when applied, and after application, they had a close fit to the skin, excellent pore coverage, and no stickiness on the skin.

[0245] [Table 3]

[0246]

Claims

1. A water-in-oil emulsion composition, wherein, It contains the following components (A), (B), (C), (D) and (E): (A) HLB is a lipophilic nonionic surfactant with a concentration of 3 to 6. (B) Oils with a viscosity greater than 10,000 mPa·s at 25°C. (C) Non-volatile oils with a viscosity of less than 10,000 mPa·s at 25°C. (D) Selected from at least one or two carbonates of calcium carbonate and magnesium carbonate. (E) Water, Furthermore, component (A) contains at least one or more surfactants selected from sorbitan fatty acid esters and polysiloxane surfactants. The viscosity of component (B) was measured using a type B viscometer at rotor No. 4, 12 rpm, and 60 seconds. For viscosity above 50,000 mPa·s, the viscosity was measured at rotor No. 4, 3 rpm, and 60 seconds. The viscosity of component (C) was measured using a Type B viscometer at rotor No. 4, 60 rpm, and 60 seconds. Component (D) carbonates have a volume average particle size of 1–30 μm. The content of component (A) is 1-8% by mass, the content of component (B) is 0.01-8% by mass, the content of component (C) is 0.5-35% by mass, the content of component (D) is 0.1-10% by mass, and the mass ratio of component (C) to component (D) is 1.5-20.

2. The water-in-oil emulsion composition as described in claim 1, wherein, The content of component (A) is 1.5 to 6.5% by mass.

3. The water-in-oil emulsion composition as described in claim 1, wherein, The content of component (B) is 0.03-5% by mass.

4. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, The content of component (C) is 2-23% by mass.

5. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, The content of component (D) is 0.5-8% by mass.

6. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, Ingredient (B) contains at least one or more selected from plant waxes, phytosterol derivatives, and triglycerides.

7. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, The mass ratio of component (B) to component (D) is 0.007 to 50.

8. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, The mass ratio of component (C) to component (D) is 2.3 to 20.

9. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, It also contains coloring pigments, with the content of coloring pigments ranging from 1 to 30% by mass.

10. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein, This water-in-oil emulsion composition is a water-in-oil emulsion cosmetic.

11. Use of the water-in-oil emulsion composition according to any one of claims 1 to 10 as a color cosmetic.

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