Emulsified cosmetics

Abstract

To provide an emulsified cosmetic that provides a feeling of freshness and smoothness to the skin during application, and a feeling of closeness to the skin after application, resulting in a smooth, even, and bright finish. [Solution] The following components (A), (B), (C), and (D): (A) Surface-coated particles in which part or all of the surface of spherical composite particles is coated with a metal oxide and anhydrous silicic acid. (B) Nonionic surfactants (C) Organic UV absorber (D) Non-volatile oils with an IOB value of less than 0.1: 0.01% to 8% by mass relative to the total mass of the emulsified cosmetic. An emulsified cosmetic containing [a specific ingredient].

Description

[Technical Field]

[0001] This invention relates to emulsified cosmetics. [Background technology]

[0002] Traditionally, emulsified cosmetics have been used as makeup bases, foundations, sunscreens, etc. Of these, sunscreens often contain organic UV absorbers (for example, Patent Document 1), but organic UV absorbers are also sometimes included in makeup cosmetics such as makeup bases and foundations. For example, Patent Document 2 describes a liquid foundation that contains, in addition to powdered anhydrous silicic acid and lauryl PEG-9 polydimethylsiloxyethyl dimethicone, ethylhexyl paramethoxycinnamate and diethylamino hydroxybenzoyl hexyl benzoate as organic ultraviolet absorbers. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2014-19688 [Patent Document 2] Japanese Patent Publication No. 2017-186305 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] In emulsified cosmetics containing anhydrous silicic acid, nonionic surfactants, and organic UV absorbers, there were issues such as insufficient absorption into the skin during application, resulting in poor skin smoothness during application and poor adhesion to the skin after application. Furthermore, it was difficult to achieve a fresh feeling on the skin during application, and the finish was unnatural, making the skin appear dull.

[0005] The present invention relates to providing an emulsified cosmetic that provides a feeling of freshness and smoothness to the skin during application, and a feeling of closeness to the skin after application, resulting in a smooth, uniform, and bright finish. [Means for solving the problem]

[0006] The inventors have found that an emulsified cosmetic product, which combines an organic ultraviolet absorber and a nonionic surfactant with a nonvolatile oil having an IOB value of less than 0.1 (0.01% to 8% by mass relative to the total mass of the emulsified cosmetic product) and surface-coated particles in which part or all of the surface of spherical composite particles is coated with a metal oxide and anhydrous silicic acid, provides a feeling of freshness and smoothness to the skin during application, and a feeling of adhesion to the skin after application, resulting in a smooth, uniform, and bright finish without unevenness.

[0007] The present invention comprises the following components (A), (B), (C), and (D): (A) Surface-coated particles in which part or all of the surface of spherical composite particles is coated with a metal oxide and anhydrous silicic acid. (B) Nonionic surfactants (C) Organic UV absorber (D) Non-volatile oils with an IOB value of less than 0.1: 0.01% to 8% by mass relative to the total mass of the emulsified cosmetic. This relates to emulsified cosmetics containing [a specific ingredient]. [Effects of the Invention]

[0008] The emulsified cosmetic composition of the present invention provides a feeling of freshness and smoothness to the skin during application, and a feeling of closeness to the skin after application, resulting in a smooth, even, and bright finish. [Modes for carrying out the invention]

[0009] <Ingredient (A)> The emulsified cosmetic of the present invention contains (A) surface-coated particles in which part or all of the surface of spherical composite particles is coated with a metal oxide and silicic anhydride. By containing the component (A), not only a uniform and bright finish without unevenness can be obtained when applied to the skin, but also it becomes easy to get used to the skin despite containing (C) an organic ultraviolet absorber. Therefore, smoothness of the skin can be felt during application, and a feeling of adhesion to the skin can be felt after application. The surface-coated particles of the component (A) have spherical composite particles as the core (base material particles), and part or all of the surface of the spherical composite particles is coated with both a metal oxide and silicic anhydride. The "spherical" in the above spherical composite particles includes a perfect sphere, a substantially spherical shape, and an ellipsoid of revolution, and may be a spherical powder having irregularities on the surface.

[0010] From the viewpoint of obtaining a uniform finish without unevenness, the above spherical composite particles are preferably spherical particles containing a composite of two or more kinds of silicates. Examples of the silicate include group 13 metal salts of silicic acid such as aluminum silicate; alkali metal silicates such as sodium silicate, potassium silicate, and lithium silicate; and alkaline earth metal silicates such as magnesium silicate and calcium silicate. From the viewpoint of obtaining a uniform and bright finish without unevenness when applied to the skin, the composite of two or more kinds of silicates includes a composite of a group 13 metal salt of silicic acid and an alkali metal silicate, a composite of a group 13 metal salt of silicic acid and an alkaline earth metal silicate, a composite of a group 13 metal salt of silicic acid, an alkali metal silicate, and an alkaline earth metal silicate, and a composite of an alkali metal silicate and an alkaline earth metal silicate are preferable, a composite of aluminum silicate and an alkali metal silicate, a composite of aluminum silicate and an alkaline earth metal silicate, a composite of aluminum silicate, an alkali metal silicate, and an alkaline earth metal silicate, and a composite of an alkali metal silicate and an alkaline earth metal silicate are more preferable, a composite of aluminum silicate and an alkali metal silicate, a composite of aluminum silicate and an alkaline earth metal silicate are still more preferable, and a composite of aluminum silicate and an alkali metal silicate is particularly preferable. Examples of the composite of two or more silicates specifically include sodium potassium aluminum silicate, calcium sodium aluminum silicate, lithium magnesium sodium silicate, magnesium aluminum silicate, sodium magnesium silicate, sodium magnesium aluminum silicate, and the like. Among these, sodium potassium aluminum silicate is preferable from the viewpoint of obtaining a uniform and bright finish without unevenness.

[0011] The average particle diameter of the spherical composite particles (base particles) is preferably 0.1 to 100 μm, more preferably 0.3 to 50 μm, and still more preferably 0.5 to 15 μm. In this specification, the average particle diameter of the spherical composite particles (base particles) refers to the volume-based average particle diameter measured with a laser diffraction / scattering particle size distribution measuring device (for example, LMS-350 manufactured by Seishin Enterprise Co., Ltd.) using ethanol as a dispersion medium.

[0012] Examples of the metal oxide that coats the spherical composite particles together with anhydrous silicic acid include one or more metal oxides selected from titanium oxide, zinc oxide, cerium oxide, iron oxide, and chromium oxide. Among these, from the viewpoint of effectively scattering light on the skin and achieving a bright finish, one or more metal oxides selected from titanium oxide and zinc oxide are preferable, and titanium oxide is more preferable.

[0013] The coating amount of anhydrous silicic acid is preferably 1 to 100 parts by mass, more preferably 2.5 to 50 parts by mass, based on 100 parts by mass of the spherical composite particles. The coating amount of the metal oxide is preferably 1 to 100 parts by mass, more preferably 2.5 to 50 parts by mass, based on 100 parts by mass of the spherical composite particles.

[0014] As for the surface-coated particles of component (A), from the viewpoint of effectively scattering light on the skin and achieving a uniform, even, and bright finish, surface-coated particles in which part or all of the surface of spherical particles containing a composite of two or more silicates is coated with titanium dioxide and anhydrous silicic acid are preferred, surface-coated particles in which part or all of the surface of spherical particles containing a composite of aluminum silicate and alkali metal silicate is coated with titanium dioxide and anhydrous silicic acid are more preferred, and surface-coated particles in which part or all of the surface of spherical particles containing sodium potassium aluminum silicate is coated with titanium dioxide and anhydrous silicic acid are particularly preferred.

[0015] The average particle size of the surface coating particles of component (A) is preferably 0.1 to 100 μm, more preferably 0.2 to 60 μm, and even more preferably 0.5 to 25 μm, from the viewpoint of filling in the grooves of skin irregularities and wrinkles, effectively scattering light, and achieving a smooth, uniform, and bright finish. The average particle diameter of the surface coating particles of component (A) refers to the volume-based average particle diameter measured in the same manner as the average particle diameter of the spherical composite particles (base particles).

[0016] Examples of commercially available surface coating particles for component (A) include RONAFLAIR LDP WHITE (manufactured by Merck).

[0017] The surface-coating particles of component (A) may be used individually or in combination of two or more types.

[0018] Regarding the content of component (A), from the viewpoint of smoothness of the skin during application, adherence to the skin after application, and obtaining a uniform and bright finish without unevenness when applied to the skin, it is preferably 0.02% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, even more preferably 0.8% by mass or more, and also preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 6% by mass or less, and even more preferably 4% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention. Specifically, the range is preferably 0.02% by mass or more and 15% by mass or less, more preferably 0.1% by mass or more and 10% by mass or less, even more preferably 0.5% by mass or more and 6% by mass or less, and even more preferably 0.8% by mass or more and 4% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention.

[0019] Furthermore, the mass ratio (A) / (powder) of component (A) to the total amount of powder contained in the emulsified cosmetic is preferably 0.001 or more and 0.9 or less, more preferably 0.005 or more and 0.7 or less, and particularly preferably 0.01 or more and 0.5 or less.

[0020] <Ingredient (B)> The emulsified cosmetic composition of the present invention contains (B) a nonionic surfactant. Examples of nonionic surfactants include silicone-based surfactants, as well as sorbitan fatty acid ester type surfactants, glycerin fatty acid ester type surfactants, diglycerin fatty acid ester type surfactants, polyglycerin fatty acid ester type surfactants, propylene glycol fatty acid ester type surfactants, polyethylene glycol fatty acid ester type surfactants, polyoxyethylene castor oil type surfactants, polyoxyethylene hydrogenated castor oil type surfactants, polyoxyethylene hydrogenated castor oil fatty acid ester type surfactants, alkyl glyceryl ether type surfactants, alkyl polyglyceryl ether type surfactants, polyoxyethylene alkyl ether type surfactants, polyoxyethylene alkyl ether fatty acid ester type surfactants, and polyoxyethylene alkylamine type surfactants. Among these, silicone-based surfactants and sorbitan fatty acid ester type surfactants are preferred from the viewpoint of providing moisture to the skin during application.

[0021] Examples of silicone-based surfactants include polyether-modified silicone-type surfactants such as polyoxyethylene-methylpolysiloxane copolymer and poly(oxyethylene-oxypropylene)methylpolysiloxane copolymer; polyglycerin-modified silicone-type surfactants; polyether-alkyl copolymerized silicone-type surfactants such as cetyl PEG / PPG-10 / 1 dimethicone; polyglycerin-alkyl copolymerized silicone-type surfactants; and polyether-silicone-alkyl copolymerized silicone-type surfactants such as lauryl PEG-9 polydimethylsiloxyethyl dimethicone. Among these, polyether-modified silicone-type surfactants are preferred.

[0022] Examples of sorbitan fatty acid ester-type surfactants include sorbitan monoisostearate, sorbitan monooleate, sorbitan monopalmitate, sorbitan sesquistearate, and sorbitan sesquioleate, with sorbitan monoisostearate being the most preferred.

[0023] Furthermore, as a nonionic surfactant, from the viewpoint of improving the dispersibility and solubility of water and water-soluble components in oil, lipophilic nonionic surfactants are preferred, nonionic surfactants with an HLB value of 1 to 8 are preferred, nonionic surfactants with an HLB value of 1.5 to 7 are more preferred, and nonionic surfactants with an HLB value of 2 to 6 are even more preferred. Here, HLB (Hydrophilic-Lipophilic Balance) represents the molecular weight of the hydrophilic group portion of the total molecular weight of a surfactant, and is determined by Griffin's formula. Furthermore, the HLB of a mixed surfactant composed of two or more nonionic surfactants is obtained by averaging the HLB values ​​of each nonionic surfactant based on their blending ratio.

[0024] Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of the nonionic surfactant X. Wx represents the mass (g) of the nonionic surfactant X having an HLBx value.

[0025] Nonionic surfactants may be commercially available or synthesized. Examples of commercially available sorbitan monoisostearate include Span 120-LQ (HLB: 4.7, manufactured by Croda). Examples of commercially available polyoxyethylene methylpolysiloxane copolymers include KF-6015 (HLB: 4.5), KF-6017 (HLB: 4.5), KF-6028 (HLB: 4) (all manufactured by Shin-Etsu Chemical Co., Ltd.), SH3775M (HLB: 5, manufactured by Toray Dow Corning Co., Ltd.). Examples of commercially available poly(oxyethylene oxypropylene) methylpolysiloxane copolymers include KF-6012 (HLB: 7, manufactured by Shin-Etsu Chemical Co., Ltd.), DOWSIL BY 22-008 M (HLB: 2), DOWSIL ES-5226 (HLB: 2) (all manufactured by Toray Dow Corning Co., Ltd.). Examples of commercially available lauryl PEG-9 polydimethylsiloxyethyl dimethicone include KF-6038 (HLB: 3, manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available cetyl PEG / PPG-10 / 1 dimethicone include ABIL EM 90 (HLB: 5, manufactured by Evonik).

[0026] The nonionic surfactant in component (B) may be used alone or in combination of two or more types.

[0027] Regarding the content of component (B), from the viewpoint of providing moisture to the skin during application and obtaining a smooth and uniform finish, it is preferably 0.001% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, and also preferably 12% by mass or less, more preferably 7% by mass or less, and even more preferably 3% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention. Specifically, the range is preferably 0.001% by mass or more and 12% by mass or less, more preferably 0.1% by mass or more and 7% by mass or less, and even more preferably 0.5% by mass or more and 3% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention.

[0028] <Component (C)> The emulsified cosmetic composition of the present invention contains (C) an organic ultraviolet absorber. By containing component (C), an ultraviolet protection effect is obtained. Furthermore, despite containing (C) an organic ultraviolet absorber, the emulsified cosmetic composition of the present invention provides skin smoothness during application and a feeling of adherence to the skin after application. As for organic ultraviolet absorbers, oil-soluble organic ultraviolet absorbers are preferred. Examples of organic UV absorbers include benzoic acid-based UV absorbers, anthranilic acid-based UV absorbers, salicylic acid-based UV absorbers, cinnamic acid-based UV absorbers, benzophenone-based UV absorbers, triazine-based UV absorbers, and silicone-based UV absorbers. Among these, from the viewpoint of improving UV protection and adhesion to the skin, one or more selected from benzoic acid-based UV absorbers, cinnamic acid-based UV absorbers, and triazine-based UV absorbers are preferred, with cinnamic acid-based UV absorbers being more preferred.

[0029] Examples of benzoic acid-based UV absorbers include para-aminobenzoic acid (PABA), glyceryl PABA, ethyl dihydroxypropyl PABA, N-ethoxylate PABA ethyl ester, N-dimethyl PABA ethyl ester, N-dimethyl PABA butyl ester, N-dimethyl PABA amyl ester, octyldimethyl PABA, and diethylaminohydroxybenzoyl hexyl benzoate. Examples of anthranilic acid-based UV absorbers include homomenthyl-N-acetylanthranilate. Examples of salicylic acid-based UV absorbers include amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, and p-isopropanolphenyl salicylate.

[0030] Examples of cinnamic acid-based UV absorbers include isopropyl paramethoxycinnamate, isoamyl paramethoxycinnamate, 2-ethylhexyl paramethoxycinnamate, 2-ethoxyethyl paramethoxycinnamate, and cyclohexyl paramethoxycinnamate. Examples of benzophenone-based UV absorbers include 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, and 4-hydroxy-3-carboxybenzophenone. Examples of triazine-based UV absorbers include 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, dioctylbutamide triazone, and 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine. Examples of silicone-based UV absorbers include dimethicone diethyl benzalmalonate. Other organic ultraviolet absorbers include 3-(4'-methylbenzylidene)-dl-camphor, 3-benzylidene-dl-camphor, ethyl urocanate, 2-phenyl-5-methylbenzoxazole, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2-(2'-hydroxy-5-t-octylphenyl)benzotriazole, dibenzarazine, dianisioylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2-norvonylidene)-3-pentan-2-one, benzene-bis-1,3-diketone derivatives described in Japanese Patent Publication No. 2-212579, and benzoylpinacolin derivatives described in Japanese Patent Publication No. 3-220153.

[0031] Organic ultraviolet absorbers can also be broadly classified into those that are solid at 1 atmosphere and 25°C, and those that are liquid at 1 atmosphere and 25°C. For example, diethylaminohydroxybenzoyl hexyl benzoate, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, and 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, mentioned above, are organic ultraviolet absorbers that are solid at 1 atmosphere and 25°C. On the other hand, isopropyl paramethoxycinnamate, 2-ethylhexyl paramethoxycinnamate, and 2-ethoxyethyl paramethoxycinnamate, mentioned above, are organic ultraviolet absorbers that are liquid at 1 atmosphere and 25°C.

[0032] The organic ultraviolet absorber in component (C) may be used alone or in combination of two or more types. As an emulsified cosmetic of the present invention, from the viewpoint of absorbing ultraviolet rays and improving the smoothness of the skin during application and the feeling of adhesion to the skin after application, it is preferable that the organic ultraviolet absorber of component (C) contains one or more selected from 2-ethylhexyl paramethoxycinnamate, dimethicone diethyl benzalmalonate, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, diethylaminohydroxybenzoyl hexyl benzoate, and 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, and more preferably contains at least 2-ethylhexyl paramethoxycinnamate.

[0033] Regarding the content of component (C), from the viewpoint of improving UV protection effect, skin smoothness during application, and adherence to the skin, it is preferably 0.05% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, even more preferably 2.5% by mass or more, and also preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 11% by mass or less, and even more preferably 7.5% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention. Specifically, the range is preferably 0.05% by mass or more and 20% by mass or less, more preferably 0.2% by mass or more and 15% by mass or less, even more preferably 0.5% by mass or more and 11% by mass or less, and even more preferably 2.5% by mass or more and 7.5% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention.

[0034] Furthermore, the mass ratio (A) / (C) of component (A) to component (C) is preferably 0.01 or higher, more preferably 0.02 or higher, even more preferably 0.05 or higher, even more preferably 0.125 or higher, and also preferably 4 or lower, more preferably 1.5 or lower, even more preferably 1.2 or lower, and even more preferably 0.8 or lower. Specifically, the range is preferably 0.01 to 4, more preferably 0.02 to 1.5, even more preferably 0.05 to 1.2, and even more preferably 0.125 to 0.8.

[0035] <Ingredient (D)> The emulsified cosmetic composition of the present invention contains (D) a non-volatile oil with an IOB value of less than 0.1 in an amount of 0.01% to 8% by mass relative to the total mass of the emulsified cosmetic composition. The non-volatile oil in component (D) does not contain the organic UV absorber in component (C). In this context, "non-volatile" refers to an oil whose mass loss rate after 1g of the oil is spread in a 48mm diameter glass petri dish and left at 25°C and atmospheric pressure for 24 hours is 1% or less. The non-volatile oil in component (D) may be any oil commonly used in cosmetics, as long as its IOB value is less than 0.1. It may also be in liquid, paste, or solid form.

[0036] As the emulsified cosmetic of the present invention, from the viewpoint of enhancing the freshness, smoothness of the skin during application, and the adhesion to the skin after application, as the non-volatile oil of component (D), one or more non-volatile oils selected from non-volatile silicone oils with an IOB value of less than 0.1 and non-volatile hydrocarbon oils with an IOB value of less than 0.1 are preferable, and those containing at least a non-volatile silicone oil with an IOB value of less than 0.1 are more preferable. Examples of the non-volatile silicone oil include non-volatile dimethylpolysiloxane (IOB: 0); non-volatile alkyl-modified silicones such as caprylyl methicone (IOB: 0, kinematic viscosity: 2.9 mm 2 , 2 , , / s). Regarding the kinematic viscosity of the non-volatile silicone oil at 25°C, from the viewpoint of enhancing the freshness, smoothness of the skin during application, the adhesion to the skin after application, and the brightness of the finish (toning effect), 2 mm 2 / s or more is preferable, 10 mm 2 / s or more is more preferable, 50 mm 2 / s or more is even more preferable, and also, 1500 mm 2 / s or less is preferable, 750 mm 2 / s or less is more preferable, 500 mm 2 / s or less is even more preferable. As a specific range, 2 mm 2 / s or more and 1500 mm 2 / s or less is preferable, 10 mm 2 / s or more and 750 mm 2 / s or less is more preferable, 50 mm 2 / s or more and 500 mm 2 / s or less is even more preferable. When the kinematic viscosity of the non-volatile silicone oil at 25°C is set to 50 mm 2 / s or more, the brightness of the finish (toning effect) is particularly improved. Also, when it is 750 mm 2 / s or less, the freshness of the skin during application is particularly improved. The kinematic viscosity of the non-volatile silicone oil and the non-volatile hydrocarbon oil at 25°C can be measured with an Ubbelohde viscometer in accordance with ASTM D 445-46T or JIS Z 8803.

[0037] Examples of non-volatile hydrocarbon oils include straight-chain or branched-chain non-volatile hydrocarbon oils (IOB:0) such as squalane, liquid paraffin, liquid isoparaffin, heavy liquid isoparaffin, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, and petrolatum. Among these, heavy liquid isoparaffin (IOB:0) is preferred. The kinematic viscosity of non-volatile hydrocarbon oil at 25°C is considered to be 2 mm, from the perspective of enhancing the freshness and smoothness of the skin during application and the sense of adhesion to the skin after application. 2 Preferably 10 mm or more 2 More preferably / s or higher, 50mm 2 More preferably / s or higher, and also 1500mm 2 Preferably less than / s, and 750mm 2 / s or less is more preferable, 500mm 2 A value of less than / s is even more preferable. Specifically, a range of 2 mm is preferred. 2 / s or more 1500mm 2 Preferably less than / s, and 10mm 2 / s or more 750mm 2 / s or less is more preferable, 50mm 2 / s or more 500mm 2 / s or less is even more preferable.

[0038] Examples of commercially available non-volatile dimethylpolysiloxanes include KF-96A-20cs (IOB:0), KF-96A-100cs (IOB:0), KF-96A-300cs (IOB:0), KF-96A-500cs (IOB:0), and KF-96A-1000cs (IOB:0) (all manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available hydrogenated polyisobutene include P-RC-10SH(S) (IOB: 0, kinematic viscosity: 260-320 mmHg). 2 Examples include products manufactured by NOF Corporation.

[0039] The IOB value of component (D), the non-volatile oil, is less than 0.1, but preferably between 0 and 0.05, and more preferably 0. The IOB value is an abbreviation for Inorganic / Organic Balance, and it represents the ratio of inorganic values ​​to organic values, serving as an indicator of the degree of polarity of an organic compound. Specifically, the IOB value is expressed as "IOB value = inorganic value / organic value". For each of the "inorganic value" and "organic value", an "organic value" of 20 is set for each atom or functional group, for example, one carbon atom in a molecule has an "organic value" of 20, and one hydroxyl group has an "inorganic value" of 100. The IOB value of an organic compound can be calculated by summing the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound (see, for example, Yoshio Koda, "Organic Concept Diagram - Fundamentals and Applications -", ​​pp. 11-17, Sankyo Publishing, 1984).

[0040] The non-volatile oil of component (D) may be used alone or in combination of two or more types.

[0041] The content of ingredient (D) is between 0.01% and 8% by mass relative to the total mass of the emulsified cosmetic. By setting the content of ingredient (D) within this range, the freshness and smoothness of the skin during application, the feeling of adhesion to the skin after application, the brightness of the finish (tone-up effect), and the uniformity of the finish are improved. Regarding the content of component (D), from the viewpoint of enhancing the freshness and smoothness of the skin during application and the sense of adhesion to the skin after application, it is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 2% by mass or more, and also preferably 6% by mass or less, and even more preferably 5% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention. Specifically, the range is preferably 0.1% by mass or more and 6% by mass or less, more preferably 0.5% by mass or more and 5% by mass or less, and even more preferably 2% by mass or more and 5% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention.

[0042] Furthermore, the mass ratio of component (A) to the sum of components (C) and (D), (A) / ((C)+(D)), is preferably 0.01 or higher, more preferably 0.02 or higher, even more preferably 0.05 or higher, even more preferably 0.075 or higher, and also preferably 2 or lower, more preferably 1 or lower, even more preferably 0.6 or lower, and even more preferably 0.3 or lower. Specifically, the range is preferably 0.01 to 2, more preferably 0.02 to 1, even more preferably 0.05 to 0.6, and even more preferably 0.075 to 0.3.

[0043] Furthermore, the mass ratio (D) / ((B)+(C)) of component (D) to the sum of components (B) and (C) is preferably 0.02 or higher, more preferably 0.05 or higher, even more preferably 0.1 or higher, and preferably 3 or lower, and even more preferably 2 or lower, from the viewpoint of enhancing the freshness and smoothness of the skin during application, the feeling of adhesion to the skin after application, and the uniformity of the finish. Specifically, it is preferably 0.02 or higher and 3 or lower, more preferably 0.05 or higher and 3 or lower, and even more preferably 0.1 or higher and 2 or lower.

[0044] <Ingredient (E)> (E) Regarding the water content, from the viewpoint of providing excellent freshness and spreadability on the skin during application, it is preferably 15% by mass or more, more preferably 30% by mass or more, even more preferably 45% by mass or more, and also preferably 68% by mass or less, more preferably 64% by mass or less, and even more preferably 60% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention. Specifically, the range is preferably 15% by mass or more and 68% by mass or less, more preferably 30% by mass or more and 64% by mass or less, and even more preferably 45% by mass or more and 60% by mass or less, based on the total mass of the emulsified cosmetic composition of the present invention.

[0045] Furthermore, the emulsified cosmetic composition of the present invention may further contain, in addition to the above-mentioned components, other components commonly used in cosmetics. Examples of such components include powders other than component (A), surfactants other than component (B), polyhydric alcohols, water-soluble polymers, antioxidants, fragrances, preservatives, thickeners, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, moisturizers, and cooling agents. These may be used individually or in combination of two or more.

[0046] Powders other than component (A) can be broadly classified into extender pigments, coloring pigments, and luminous pigments. Examples of extender pigments include inorganic pigments such as silicic acid, anhydrous silicic acid, magnesium silicate, talc, sericite, boron nitride, mica, synthetic mica, glass flakes, synthetic fluorphlogopite, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silica, alumina, and composite pigments thereof. Specific examples of composite pigments include titanium dioxide-coated mica, zinc oxide-coated mica, titanium dioxide-zinc oxide-coated mica, iron oxide-coated mica, iron oxide-coated titanium mica, barium sulfate-titanium dioxide-coated mica, iron oxide-coated synthetic fluorphlogopite, chromium oxide-coated titanium mica, titanium dioxide-coated glass powder, iron oxide-coated glass powder, titanium dioxide-encapsulated glass powder, and iron oxide-encapsulated glass powder. Examples of coloring pigments include metal oxides such as titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, Prussian blue, ultramarine blue, chromium oxide, and chromium hydroxide; metal complexes such as manganese violet and cobalt titanate; inorganic pigments such as carbon black; synthetic organic 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, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, and Blue No. 404; and natural organic pigments such as β-carotene, caramel, and paprika pigment. As luminous pigments, the surface of plate-like powders such as mica, synthetic fluorphlogopite, glass, silica, and alumina is coated with colorants such as titanium dioxide, iron oxide, silicon dioxide, Prussian blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, and organic pigments. In addition, film rolls such as polyethylene terephthalate / polymethyl methacrylate laminated powder, polyethylene terephthalate / aluminum vapor-deposited powder, and polyethylene terephthalate / gold vapor-deposited laminated powder can be cut into any shape. These powders can be used as is, or they can be hydrophobized using conventional methods. Examples of hydrophobic treatments include surface treatments such as silicone treatment, alkyl treatment, alkylsilane treatment, metal soap treatment, water-soluble polymer treatment, amino acid treatment, inorganic compound treatment, acylated amino acid treatment, lecithin treatment, organic titanate treatment, polyol treatment, acrylic resin treatment, methacrylate resin treatment, and urethane resin treatment.

[0047] The powders other than component (A) may be used individually or in combination of two or more types.

[0048] Regarding the content of powders other than component (A), from the viewpoint of enhancing skin coverage, coloring ability, and aesthetics, it is preferable that the content be 0% to 40% by mass, more preferably 5% to 30% by mass, and even more preferably 10% to 20% by mass, relative to the total mass of the emulsified cosmetic composition of the present invention.

[0049] Other surfactants besides component (B) include anionic surfactants, cationic surfactants (for example, quaternary ammonium salt type cationic surfactants such as distearyldimonium chloride), amphoteric surfactants (for example, phospholipids such as lecithin and hydrogenated lecithin, as well as betaine-type amphoteric surfactants), and these may be used individually or in combination of two or more. The emulsified cosmetic composition of the present invention preferably contains at least an amphoteric surfactant as a surfactant other than component (B), and more preferably contains at least a phospholipid.

[0050] Regarding the content of surfactants other than component (B), from the viewpoint of obtaining a moist feeling on the skin during application, it is preferable that the content be 0% to 10% by mass, more preferably 0.001% to 5% by mass, and even more preferably 0.005% to 1% by mass, relative to the total mass of the emulsified cosmetic composition of the present invention.

[0051] Examples of the polyhydric alcohols mentioned above include glycols, glycerols, polyoxyalkylene methyl glucose compounds, as well as sorbitol, maltitol, sorbitan, glucose, fructose, sucrose, and maltose.

[0052] Examples of glycols include alkylene glycols such as ethylene glycol, propylene glycol, and 1,3-butylene glycol; and polyalkylene glycols such as diethylene glycol, dipropylene glycol, and polyethylene glycol. Examples of glycerin include glycerin, diglycerin, and polyglycerin. Examples of polyoxyalkylene methyl glucose include polyoxyethylene methyl glucose and polyoxypropylene methyl glucose.

[0053] Polyhydric alcohols may be used individually or in combination of two or more types.

[0054] Regarding the polyhydric alcohol content, from the viewpoint of obtaining a moist feeling on the skin during application, it is preferably 0% to 15% by mass, more preferably 0.1% to 10% by mass, and even more preferably 0.5% to 5% by mass, based on the total mass of the emulsified cosmetic composition of the present invention.

[0055] As for the emulsified cosmetic composition of the present invention, from the viewpoint of environmental considerations and excellent usability, it is preferable that the content of organic resin powder such as microplastics is 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably substantially free of organic resin powder. Specifically, such organic resin powders refer to organic resin powders other than cellulose powder that have excellent biodegradability. Examples of organic resin powders include crosslinked or non-crosslinked organic resin powders such as powders of 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, butyl acrylate / vinyl acetate copolymer, styrene / acrylic acid copolymer, silicone resin, and divinylbenzene / styrene copolymer.

[0056] The emulsified cosmetic composition of the present invention can be manufactured by conventional methods. For example, it can be manufactured by adding a powder phase containing component (A) to an oil phase containing components (B) to (D), dispersing the mixture, and then adding an aqueous phase component and stirring. Furthermore, the emulsified cosmetic composition of the present invention, which can be manufactured in this manner, provides a feeling of freshness and smoothness to the skin during application, and a feeling of closeness to the skin after application, resulting in a smooth, uniform, and bright finish.

[0057] The emulsification type of the emulsified cosmetic of the present invention is not particularly limited, but examples include oil-in-water and water-in-oil, with water-in-oil emulsified cosmetics being preferred. Even when the emulsified cosmetic of the present invention is a water-in-oil emulsified cosmetic, the skin tends to feel more moisturized during application. Furthermore, the emulsified cosmetic composition of the present invention is suitable for use on the skin, more suitable for application to skin excluding the scalp, and even more suitable for application to one or more areas selected from the face, body, and hands and feet. The method of application is not particularly limited, but it is preferable to apply it with hands or with tools such as sponges or puffs.

[0058] The dosage forms of the emulsified cosmetic composition of the present invention include non-solid forms such as liquid, emulsion, cream, paste, and gel, with emulsion and cream forms being preferred. Furthermore, the emulsified cosmetic composition of the present invention can be used for makeup cosmetics such as makeup base, foundation (e.g., liquid foundation, cream foundation), concealer, blush, eyeshadow, mascara, eyeliner, eyebrow products, overcoat agents, and lipstick; sunscreen cosmetics such as sunscreen lotion and sunscreen cream; and skincare cosmetics such as skincare lotion, skincare cream, BB cream, and serum. Among these, the emulsified cosmetic composition of the present invention is suitable for use as makeup cosmetics and sunscreen cosmetics, more suitable for use as makeup cosmetics, and particularly suitable for use as makeup base and foundation. The emulsified cosmetic composition of the present invention may be used alone, or it may be used in combination with powder cosmetics such as powder foundation or face powder, or with other liquid foundations. [Examples]

[0059] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples.

[0060] Examples 1-8, Comparative Examples 1-3 We manufactured water-in-oil emulsion cosmetics (liquid foundations) with the compositions shown in Table 1, and evaluated their freshness on the skin during application, smoothness on the skin during application, adherence to the skin, brightness of the finish (tone-up effect), and uniformity of the finish. The results are also shown in Table 1.

[0061] (Manufacturing method) Each water-in-oil emulsion cosmetic (liquid foundation) was obtained by adding a powder phase component containing component (A) to an oil phase component containing components (B), (C), and (D) in Table 1, mixing them, then adding an aqueous phase component, and stirring with a homomixer.

[0062] (Evaluation method) Five expert panelists applied each water-in-oil emulsion cosmetic (liquid foundation) to their skin using a sponge and performed sensory evaluations based on the following criteria: skin freshness during application, skin smoothness during application, adherence to the skin, brightness of the finish (tone-up effect), and uniformity of the finish. The evaluation results are shown in Table 1 as the sum of the five panelists' scores. A higher sum indicates a better evaluation. In this specification, "high adhesion" means that the water-in-oil emulsion cosmetic (liquid foundation in the examples) blends easily with the skin and has high adhesion, which is an important performance characteristic for the finish of the makeup.

[0063] (1) The freshness of the skin during application 4; fresh 3; Slightly juicy 2; Not very juicy 1; Not fresh

[0064] (2) Smoothness of the skin during application 4; Very smooth 3; smooth 2; Not very smooth 1; Not smooth

[0065] (3) Adhesion to the skin after application 4; High level of closeness 3; The fit is slightly tighter. 2; The feeling of closeness is not very strong. 1; Does not provide a close fit.

[0066] (4) Brightness of the finished product (tone-up effect) 4; Looks very bright 3; Looks bright 2; It doesn't look very bright. 1; Not brightly visible

[0067] (5) Uniformity of finish 4; Very uniform finish 3; uniform finish 2; Not a very uniform finish 1; Uneven finish

[0068] [Table 1]

[0069] Examples 9-11 An oil-in-water emulsion cosmetic (liquid foundation) with the composition shown in Table 2 was prepared in the same manner as in Example 1.

[0070] [Table 2]

Claims

1. The following components (A), (B), (C), and (D): (A) Surface-coated particles in which part or all of the surface of spherical composite particles is coated with a metal oxide and anhydrous silicic acid. (B) Nonionic surfactants (C) Organic UV absorber (D) Non-volatile oils with an IOB value of less than 0.1: 0.01% to 8% by mass relative to the total mass of the emulsified cosmetic. Emulsified cosmetic containing [a specific ingredient].

2. The emulsified cosmetic according to claim 1, wherein the content of component (A) is 0.02% by mass or more and 15% by mass or less based on the total mass of the emulsified cosmetic, the content of component (B) is 0.001% by mass or more and 15% by mass or less based on the total mass of the emulsified cosmetic, and the content of component (C) is 0.05% by mass or more and 20% by mass or less based on the total mass of the emulsified cosmetic.

3. The emulsified cosmetic composition according to claim 1, wherein the spherical composite particles are spherical particles containing a composite of aluminum silicate and alkali metal silicate.

4. The emulsified cosmetic composition according to claim 1, wherein the metal oxide is titanium oxide.

5. The emulsified cosmetic composition according to claim 1, comprising as component (D) one or more non-volatile oils selected from non-volatile silicone oils with an IOB value of less than 0.1 and non-volatile hydrocarbon oils with an IOB value of less than 0.

1.

6. The emulsified cosmetic composition according to claim 1, wherein the mass ratio (A) / (C) of component (A) to component (C) is 0.01 or more and 4 or less.

7. An emulsified cosmetic composition according to any one of claims 1 to 6, which is a water-in-oil type emulsified cosmetic composition.

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