Cosmetic composition

Abstract

To provide a cosmetic composition that, when spread on the skin, enables quick and uniform finishing without uneven application, and that shows little change in applied color between immediately after application and after blending (5 minutes later).SOLUTION: A cosmetic composition contains the following components (A), (B), and (C): (A) an amino-modified silicone; (B) a volatile oil; and (C) a hydrophobically treated colored pigment.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a cosmetic preparation. [Background technology]

[0002] Conventionally, various hydrophobically treated powders have been used to obtain cosmetics with excellent cosmetic durability. For example, Patent Document 1 describes that a water-in-oil emulsion cosmetic containing a powder surface-treated with an N-acylamino acid or its salt and a surfactant selected from sucrose fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acid esters has improved cleansing properties while maintaining long-lasting cosmetic effects. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2016-222587 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional cosmetics that combine volatile oils with hydrophobically treated coloring pigments have the problem that the volatile oils evaporate quickly after application and dry out during application, making them difficult to apply and prone to uneven application. [Means for solving the problem]

[0005] The present inventors have discovered that by using a combination of a volatile oil and a hydrophobically treated color pigment with an amino-modified silicone, it is possible to obtain a cosmetic composition that reduces aggregation between the color pigments while improving the affinity between the color pigments and the skin, allowing the color pigments to adhere uniformly and quickly to the skin, resulting in a uniform and quick finish without uneven application. Furthermore, the effect of the color remaining stable even after application and blending into the skin was also achieved.

[0006] The present invention comprises the following components (A), (B) and (C): (A) amino-modified silicone, (B) volatile oils, (C) Hydrophobically treated color pigment The present invention relates to a cosmetic composition containing the above compound. [Effects of the Invention]

[0007] The cosmetic of the present invention does not cause uneven application when spread on the skin, can quickly achieve a uniform finish in a short time, and shows little change in color between immediately after application and after it has been absorbed into the skin (after 5 minutes). DETAILED DESCRIPTION OF THE INVENTION

[0008] The amino-modified silicone of component (A) used in the present invention is preferably a silicone compound having an amino group or an ammonium group, from the viewpoint of improving the dispersibility of the hydrophobically treated color pigment, and any compound can be used regardless of its form (liquid, solid, etc.), whether it has a crosslinked structure, etc. The amino-modified silicone is preferably an amino-modified silicone that does not have a crosslinked structure and / or an amino-modified silicone that has a crosslinked structure, and more preferably an amino-modified silicone that does not have a crosslinked structure.

[0009] An example of an amino-modified silicone that does not have a crosslinked structure is one represented by the following general formula (1).

[0010] [ka]

[0011] (wherein R is a hydroxyl group, a hydrogen atom, or R a indicates R a represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and X represents R a , -Q-NH(CH2) n NH2-OR aor a hydroxyl group, and Q represents a divalent hydrocarbon group having 1 to 8 carbon atoms. n represents a number from 1 to 5. p and q represent a number whose number average sum is preferably 2 or more and less than 2000, more preferably 20 or more and less than 2000, and even more preferably 30 or more and less than 1000.

[0012] The amino equivalent of the amino-modified silicone is preferably 200 g / mol to 30,000 g / mol, more preferably 500 g / mol to 10,000 g / mol, and even more preferably 600 g / mol to 5,000 g / mol. Here, amino equivalent refers to the mass of the siloxane skeleton per amino group or ammonium group. The unit of g / mol is the value converted to per 1 mol of amino group or ammonium group. Therefore, the smaller the amino equivalent value, the higher the proportion of amino groups or ammonium groups in the molecule.

[0013] The amino-modified silicone is 100 to 3000 mm 2 / s (25°C). This may be used in the form of an emulsion. This amino-modified silicone emulsion can be prepared, for example, by mechanically mixing the amino-modified silicone and a solvent at high shear, by emulsifying the amino-modified silicone with water and an emulsifier, or by a combination of these, or by emulsion polymerization.

[0014] A specific example of a suitable commercially available amino-modified silicone (kinematic viscosity (25°C)) is SF8451C (manufactured by Toray Dow Corning Silicone Co., Ltd., kinematic viscosity 600mm 2 / s, amino equivalent 1700 g / mol), SF8452C (Toray Dow Corning Silicone Co., Ltd., kinematic viscosity 700 mm 2 / s, amino equivalent 6400 g / mol), SF8457C (Toray Dow Corning Silicone Co., Ltd., kinematic viscosity 1200 mm 2 / s, amino equivalent 1800 g / mol), KF8003 (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 1850 mm 2 / s, amino equivalent 2000 g / mol), KF8004 (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 800 mm 2 / s, amino equivalent 1500 g / mol), KF867S (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 1300 mm 2 / s, amino equivalent weight 1700 g / mol), XF42-B8922 (Momentive Performance Materials, kinematic viscosity 70000 mm 2 Examples of suitable silicone oils include amino-modified silicone oils such as SM8704C (manufactured by Dow Corning Toray Silicone Co., Ltd., amino equivalent weight 1800 g / mol) and SM8704C (manufactured by Dow Corning Toray Silicone Co., Ltd., amino equivalent weight 13000 g / mol). They may also be produced by known production methods. One or more of these may be used.

[0015] The amino-modified silicone having a crosslinked structure is not particularly limited, but examples thereof include a polymer having a silicone micro-three-dimensional crosslinked structure (hereinafter also referred to as a "micro-crosslinked silicone product") obtained by a condensation reaction of the following surface coating treatment agent (a) and surface coating treatment agent (b). The surface coating treatment agent (a) and the following surface coating treatment agent (b) can each be produced by a known method, and commercially available products can also be used.

[0016] Surface coating treatment agent (a): a diorganopolysiloxane having reactive groups at both ends, represented by the following general formula (2): R 1 R 2 2SiO-(R 2 2SiO) L -SiR 1 R 2 2(2) (In the formula, each R 1 represents a hydroxyl group, and each R 2 each independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents an integer of 3 to 10,000.

[0017] Surface coating treatment agent (b): an amino group-containing silane compound represented by the following general formula (3): R 3 R 4 m Six (3-m)(3) (In the formula, R 3 represents a hydrocarbon group having 1 to 20 carbon atoms and having at least one amino group, and R 4 represents an alkyl group having 1 to 4 carbon atoms, X represents an alkoxy group having 1 to 4 carbon atoms, and m represents 0 or 1.

[0018] The surface coating treatment agent (a) is a diorganopolysiloxane having reactive terminals, and is a silicone modified with hydroxysilyl groups at both terminals, represented by the general formula (2). The form of the surface coating treatment agent (a) is not particularly limited, but in the present invention, it is preferably used in the form of an aqueous suspension or aqueous emulsion in terms of improving the feel, etc. The aqueous emulsion of (a) may be prepared by any conventional method, and examples thereof include a method of emulsion polymerization using a low molecular weight cyclic siloxane as a starting material, and a method of emulsifying an oily diorganopolysiloxane having reactive terminals.

[0019] The surface coating treatment agent (b) is an amino group-containing silane compound, and is represented by the general formula (3) above. The surface coating treatment agent (b) is not particularly limited, but examples thereof include N-(2-aminoethyl)-3-aminopropyltriethoxysilane, 3-aminopropyltriethoxysilane, and 3-aminopropyltrimethoxysilane. In the general formula (3), an amino group-containing trialkoxy (carbon number 1 to 4) silane in which m=0 is preferred. In addition, R 3 The hydrocarbon group preferably has 1 to 10 carbon atoms. Commercially available surface coating treatment agents (b) include, for example, aminopropyltriethoxysilane (KBE-903; manufactured by Shin-Etsu Chemical Co., Ltd.), but the present invention is not limited thereto, and the surface coating treatment agent (b) may also be produced by known methods.

[0020] The silicone micro-crosslinked product obtained from the surface coating treatment agent (a) and the surface coating treatment agent (b) is not particularly limited, but from the viewpoint of excellent usability, it is preferable that the mass ratio of the surface coating treatment agents (a) to (b) used is (surface coating treatment agent (a)):(surface coating treatment agent (b)) = 100:0.1 to 100:35.

[0021] The component (A) used in the present invention is preferably an amino-modified silicone that does not have a crosslinked structure, more preferably an amino-modified silicone represented by the general formula (1) above, and even more preferably amodimethicone.

[0022] Component (A) can be used alone or in combination of two or more, and the content thereof is preferably 0.1 mass% or more, more preferably 0.5 mass% or more, and even more preferably 1 mass% or more, based on the total composition, from the viewpoint of improving the dispersibility of the hydrophobized color pigment, and is preferably 15 mass% or less, more preferably 8 mass% or less, and even more preferably 5 mass% or less. The content of component (A) is preferably 0.1 to 15 mass%, more preferably 0.5 to 8 mass%, and even more preferably 1 to 5 mass% based on the total composition.

[0023] In the volatile oil of component (B), volatile means that it has a flash point of 35 to 87°C. Volatile oils include volatile silicone oils and volatile hydrocarbon oils. Examples of volatile silicone oils include linear dimethylpolysiloxanes such as dimethylpolysiloxane (1cs), dimethylpolysiloxane (1.5cs), and dimethylpolysiloxane (2cs); branched siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; and cyclic dimethylsiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. Of these, dimethylpolysiloxane (1cs), dimethylpolysiloxane (1.5cs), dimethylpolysiloxane (2cs), and methyltrimethicone are preferred.

[0024] Examples of volatile hydrocarbon oils include paraffinic hydrocarbon oils such as n-decane, n-undecane, and n-dodecane; isoparaffinic hydrocarbon oils such as isodecane, isododecane, and hydrogenated polyisobutene; and cyclic paraffinic hydrocarbon oils such as cyclodecane and cyclododecane. Of these, hydrocarbon oils having 8 to 16 carbon atoms are preferred, hydrocarbon oils having 10 to 16 carbon atoms are more preferred, and hydrocarbon oils having 12 carbon atoms are even more preferred. Of these, isoparaffinic hydrocarbon oils are preferred, and isododecane and hydrogenated polyisobutene having 12 carbon atoms are more preferred.

[0025] As the volatile oil of component (B), volatile silicone oil is preferred, and volatile chain silicone is more preferred, from the viewpoint that it is compatible with the amino-modified silicone and can produce a uniform, fine finish in a short time.

[0026] Component (B) can be used alone or in combination of two or more, and from the viewpoint of being compatible with the amino-modified silicone and being able to obtain a uniform, fine-textured finish in a short time, the content is preferably 1% by mass or more of the total composition, more preferably 8% by mass or more, even more preferably 12% by mass or more, and preferably 40% by mass or less, preferably 30% by mass or less, and even more preferably 25% by mass or less. The content of component (B) is preferably 1 to 40% by mass of the total composition, more preferably 8 to 30% by mass, and even more preferably 12 to 25% by mass.

[0027] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is preferably 0.02 or more, more preferably 0.03 or more, even more preferably 0.05 or more, and preferably 0.5 or less, more preferably 0.4 or less, and even more preferably 0.25 or less, from the viewpoints of being compatible with volatile oils, improving the dispersibility of hydrophobically treated color pigments, thereby suppressing uneven application when spread on the skin, enabling a uniform finish to be achieved quickly and in a short time, and suppressing changes in applied color between immediately after application and after blending into the skin. Furthermore, the mass ratio (A) / (B) of component (A) to component (B) is preferably 0.02 to 0.5, more preferably 0.03 to 0.4, and even more preferably 0.05 to 0.25.

[0028] Component (C) is a hydrophobically treated color pigment. Examples of color pigments include those commonly used in cosmetics, such as metal oxides such as titanium 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 404; and natural organic pigments such as β-carotene, caramel, and paprika pigment. Among these, it is preferable to contain one or more selected from titanium oxide, yellow iron oxide, red iron oxide, and black iron oxide, and it is more preferable to contain a combination of titanium oxide and one or more selected from yellow iron oxide, red iron oxide, and black iron oxide.

[0029] 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, acylated amino acid treatment, lecithin treatment, organic titanate treatment, polyol treatment, acrylic resin treatment, methacrylic resin treatment, and urethane resin treatment, and at least amino acid treatment and acylated amino acid treatment are preferred.

[0030] Examples of amino acids used to treat color pigments include proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, and glutamic acid, as well as salts thereof. The fatty acid constituting the acyl group of the acylated amino acid is preferably a fatty acid having 1 to 23 carbon atoms, more preferably a fatty acid having 8 to 20 carbon atoms, and among these, stearoyl glutamic acid, cocoyl glutamic acid, lauroyl aspartic acid, dilauroyl glutamic acid lysine, and lauroyl lysine are even more preferred. Examples of salts thereof include Na, Ca, Al, Mg, Zn, Zr, and Ti salts. Specifically, from the viewpoints of preventing uneven application when spread on the skin, enabling a fine, uniform finish to be achieved quickly and in a short time, and preventing changes in application color between immediately after application and after blending into the skin, those treated with disodium stearoyl glutamate, sodium lauroyl aspartate, or disodium cocoyl glutamate are preferred, and those treated with disodium stearoyl glutamate or sodium lauroyl aspartate are more preferred. The amino acid treatment can be carried out according to a conventional method. The color pigment may be hydrophobized with a compound other than an amino acid.

[0031] Component (C) can be used alone or in combination of two or more, and from the viewpoint of obtaining a fine and uniform makeup effect, the content is preferably 1% by mass or more of the total composition, more preferably 5% by mass or more, even more preferably 10% by mass or more, and preferably 40% by mass or less, preferably 25% by mass or less, and even more preferably 20% by mass or less. The content of component (C) is preferably 1 to 40% by mass of the total composition, more preferably 5 to 25% by mass, and even more preferably 10 to 20% by mass.

[0032] In the present invention, the mass ratio (A) / (C) of component (A) to component (C) is preferably 0.04 or more, more preferably 0.06 or more, even more preferably 0.08 or more, and preferably 1 or less, more preferably 0.5 or less, and even more preferably 0.3 or less, from the viewpoints of improving the dispersibility of the hydrophobically treated color pigment, thereby suppressing uneven application when spread on the skin, enabling a uniform finish to be achieved quickly and in a short time, and suppressing change in applied color between immediately after application and after blending into the skin.Furthermore, the mass ratio (A) / (C) of component (A) to component (C) is preferably 0.04 to 1, more preferably 0.06 to 0.5, and even more preferably 0.08 to 0.3.

[0033] The cosmetic composition of the present invention may further contain a nonionic surfactant. The nonionic surfactant may be any surfactant commonly used in cosmetics, and examples thereof include sorbitan fatty acid esters such as sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and sorbitan sesquioleate; glycerin fatty acid esters, diglycerin fatty acid esters, propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyethylene glycol fatty acid esters, polyethylene glycol dipolyhydroxystearate, alkyl glyceryl ethers, alkyl polyglyceryl ethers, polyoxyethylene alkyl ethers, polyoxyethylene alkyl ether fatty acid esters, polyoxyethylene alkylamines; polyether-modified silicones such as polyoxyethylene-methylpolysiloxane copolymers and poly(oxyethylene-oxypropylene)methylpolysiloxane copolymers; and silicone surfactants such as polyglycerin-modified silicones, alkyl-modified polyether-modified silicones, and alkyl chain-co-modified polyether-modified silicones.

[0034] The nonionic surfactant preferably has an HLB value of 2 to 7, more preferably 3 to 6, from the viewpoint of improving dispersibility. Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion relative to the total molecular weight of the surfactant, and is calculated using Griffin's equation. When a 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 the arithmetic average of the HLB values ​​of each nonionic surfactant based on their blending ratio. Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of nonionic surfactant X. Wx represents the mass (g) of the nonionic surfactant X having the value of HLBx.

[0035] The nonionic surfactant preferably contains a silicone surfactant, from the viewpoint of preventing uneven application when spread on the skin and achieving a fine, uniform finish, and preferably contains one or more surfactants selected from PEG-10 dimethicone, PEG-12 dimethicone, and cetyl PEG / PPG-10 / 1 dimethicone.

[0036] One or more nonionic surfactants can be used, and the content is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, and preferably 10% by mass or less, more preferably 6% by mass or less, and even more preferably 4% by mass or less, based on the viewpoint of suppressing uneven application when spread on the skin and achieving a fine, uniform finish. The content of the nonionic surfactant is preferably 0.1 to 10% by mass, more preferably 0.5 to 6% by mass, and even more preferably 1 to 4% by mass, based on the total composition.

[0037] The cosmetic composition of the present invention may further contain a silicone-based film-forming agent. The silicone film-forming agent may be any of those commonly used in cosmetics, and those that are solid at 25°C are preferred. Examples of silicone film-forming agents include trimethylsiloxysilicate and acrylic silicone resins.

[0038] There are no limitations on trimethylsiloxysilicate as long as it is one that is commonly used in cosmetics. It is a compound with a crosslinked structure that has a siloxane structure as the main skeleton, and is generally [(CH3)3SiO 1 / 2 ]m[SiO2]n (m is 1 to 3, n is 0.5 to 8) is preferred. From the viewpoint of cosmetic durability and finish, trimethylsiloxysilicate preferably has a mass-average molecular weight of 1,000 to 10,000, more preferably 2,000 to 9,000, and even more preferably 3,000 to 6,000. Furthermore, its form may be any of liquid, gum, paste, or solid at 25°C, but from the viewpoint of cosmetic durability and finish, solid forms are preferred. From the viewpoint of blendability, it can be used in the form of a solution or dispersion diluted with a solvent, or in the form of a solution or dispersion obtained by premixing. The solvent used for dilution or dispersion is preferably one or more selected from dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and isododecane, with volatile dimethylpolysiloxane and decamethylcyclopentasiloxane being more preferred. Volatile refers to a flash point of 35 to 87°C.

[0039] Commercially available trimethylsiloxysilicate products include those dissolved in solvent in advance, such as KF-7312J (50% solids decamethylcyclopentasiloxane solution), KF-9021 (50% decamethylcyclopentasiloxane solution), and X21-5249 (50% decamethylcyclopentasiloxane solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.), SS4267 (35% dimethylpolysiloxane solution), and SR1000 (all manufactured by Momentive Performance Materials Japan, LLC), and BY11-018 (30% cyclopentasiloxane solution) (manufactured by Toray Dow Corning Silicones Co., Ltd.); and BELSIL TMS 803 (manufactured by Wacker Chemie AG).

[0040] Examples of the acrylic silicone resin include vinyl polymers having a carbosiloxane dendrimer structure in the side chain, and acrylic-silicone graft copolymers. Examples of vinyl polymers having a carbosiloxane dendrimer structure in the side chain include silicone dendrimer-acrylic copolymers, which can be produced according to the production methods described in, for example, Japanese Patent Application Laid-Open Nos. 11-1530 and 2000-63225. The number average molecular weight of the vinyl polymer having a carbosiloxane dendrimer structure used in the present invention is preferably 3,000 to 2,000,000, more preferably 5,000 to 800,000, from the viewpoint of cosmetic durability and finish. In terms of cosmetic durability and finish, the composition is preferably in a solid state. The vinyl polymer having a carbosiloxane dendrimer structure can be blended in a solid state, but it can also be dissolved in a solvent before use. Examples of the solvent include silicone oil and hydrocarbon oil, and one or more selected from dimethylpolysiloxane, decamethylcyclopentasiloxane, and isododecane can be used.

[0041] The vinyl polymer having a carbosiloxane dendrimer structure in its side chain is preferably a silicone dendrimer-acrylic copolymer, and is preferably labeled as "(Acrylates / Polytrimethylsiloxymethacrylate) Copolymer" (INCI name: "Acrylates / Polytrimethylsiloxymethacrylate Copolymer") in cosmetics. Commercially available products such as FA4001CM (30% by mass decamethylcyclopentasiloxane solution), FA4002ID (40% by mass isododecane solution), and FA4003DM (40% by mass dimethicone solution) (all manufactured by Dow Corning Toray Co., Ltd.) that have been dissolved in a solvent in advance can be used.

[0042] The acrylic-silicone graft copolymer is a radical polymer of an organopolysiloxane compound having a radically polymerizable group at one end of the molecular chain and a radically polymerizable monomer mainly composed of acrylate and / or methacrylate. For example, the acrylic-silicone graft copolymers described in JP-A-2-25411 and JP-A-2-132141, as well as the acrylic-silicone graft copolymers described in JP-A-3-162442 and JP-A-2003-104825 can be used.

[0043] The acrylic-silicone graft copolymer is preferably one having the cosmetic labeling name "(Acrylates / Dimethicone) Copolymer" (INCI name "Acrylates / Dimethicone Copolymer"), and commercially available products such as KP545 (30% by mass decamethylcyclopentasiloxane solution), KP549 (40% by mass methyltrimethicone solution), KP550 (40% by mass isododecane solution), and KP545L (40% by mass dimethicone solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.) that have been dissolved in a solvent in advance can be used.

[0044] From the viewpoint of cosmetic durability and finish, the silicone film-forming agent preferably contains one or more selected from trimethylsiloxysilicate and acrylic silicone resin, and more preferably contains at least trimethylsiloxysilicate.

[0045] One or more silicone film-forming agents can be used, and the content is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, and preferably 15% by mass or less, more preferably 9% by mass or less, and even more preferably 6% by mass or less, based on the viewpoints of excellent cosmetic durability, suppressing uneven application when spread on the skin, and achieving a fine, uniform finish. The content of the silicone film-forming agent is preferably 0.5 to 15% by mass, more preferably 1 to 9% by mass, and even more preferably 2 to 6% by mass, based on the total composition.

[0046] The cosmetic of the present invention may further contain an organic ultraviolet absorber. Examples of organic UV absorbers include those commonly used in cosmetics, such as 2-ethylhexyl methoxycinnamate, polysilicone-15, bisethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, ethylhexyl triazone, t-butylmethoxydibenzoylmethane, ethylhexyl triazone, oxybenzone-3, drometrizole trisiloxane, and ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate.

[0047] Among these, from the viewpoints of stability and UV protection effect, it is preferable to use one or more selected from 2-ethylhexyl methoxycinnamate, polysilicone-15, bisethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, and ethylhexyl triazone.

[0048] The organic UV absorbers can be used alone or in combination of two or more, and from the viewpoint of absorbing UV rays and protecting the skin, the content is preferably 0.5% by mass or more, more preferably 1% by mass or more, and even more preferably 2% by mass or more, and is preferably 20% by mass or less, more preferably 12% by mass or less, and even more preferably 8% by mass or less, based on the total composition. The content of the organic UV absorbers is preferably 0.5 to 20% by mass, more preferably 1 to 12% by mass, and even more preferably 2 to 8% by mass, based on the total composition.

[0049] The cosmetic of the present invention may further contain zinc oxide. This zinc oxide is not included in component (C). The volume average particle size of zinc oxide is preferably 0.01 to 1 μm, and from the viewpoints of excellent cosmetic durability and suppression of uneven application when spread on the skin, a volume average particle size of 0.01 to 0.1 μm is more preferable, and 0.02 to 0.08 μm is even more preferable. In the present invention, the volume average particle size is a value measured using ethanol as a dispersion medium with a laser diffraction scattering particle size distribution analyzer (LMS-350, manufactured by Seishin Enterprise Co., Ltd.) The volume average particle size is the average particle size on a volume basis, and is the 50% median diameter. Zinc oxide may be used as is, or it is preferably used after being hydrophobized as in component (C), and more preferably after being hydrophobized differently from component (C). Among these, silicone treatment is preferred, and alkoxysilane-treated zinc oxide is more preferred.

[0050] The content of zinc oxide in the total composition is preferably 0.1 to 20% by mass, more preferably 0.5 to 10% by mass, and even more preferably 1 to 5% by mass, from the viewpoint that when used in combination with component (C), the cosmetic composition will have excellent cosmetic durability and will not become uneven when spread on the skin.

[0051] The cosmetic of the present invention may further contain an extender pigment. Examples of extender pigments include those commonly used in cosmetics, such as inorganic pigments such as silicic acid anhydride, magnesium silicate, talc, sericite, boron nitride, mica, glass flakes, synthetic phlogopite, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, and alumina, as well as composite pigments thereof. Specific examples of composite pigments include titanium oxide-coated mica, zinc oxide-coated mica, titanium oxide-zinc oxide-coated mica, iron oxide-coated mica, iron oxide-coated mica titanium, barium sulfate-titanium oxide-coated mica, iron oxide-coated synthetic phlogopite, chromium oxide-coated mica titanium, titanium oxide-coated glass powder, iron oxide-coated glass powder, titanium oxide-containing glass powder, and iron oxide-containing glass powder. Among these, the pigment preferably contains one or more pigments selected from silicic acid anhydride, talc, sericite, mica, and synthetic phlogopite, and more preferably contains talc.

[0052] The extender pigment may be used as is, or, similarly to component (C), it is preferable to use one that has been hydrophobized, with silicone-treated extender pigments being more preferred, and dimethicone-treated talc being even more preferred.

[0053] One or more types of extender pigments can be used, and the content is preferably 0.1 to 15% by mass, more preferably 1 to 12% by mass, and even more preferably 2 to 8% by mass of the total composition, from the viewpoint of suppressing uneven application when spread on the skin and achieving a fine, uniform finish.

[0054] In the present invention, the content of water is preferably 10 to 50% by mass, more preferably 15 to 45% by mass, and even more preferably 20 to 40% by mass of the total composition, from the viewpoint of ease of spreading on the skin.

[0055] In addition to the above-mentioned components, the emulsion cosmetic of the present invention may contain components that are commonly used in cosmetics, such as surfactants other than those mentioned above, oily components other than those mentioned above, powders other than those mentioned above, polymeric compounds, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, disinfectants, skin activators, moisturizers, and refreshing agents.

[0056] From the viewpoints of being environmentally friendly and providing an excellent feel when used, the emulsion cosmetic of the present invention preferably contains no more than 1% by mass of organic resin powder such as microplastics in the total composition, more preferably no more than 0.1% by mass, and even more preferably is substantially free of such powder. Specifically, it refers to organic resin powder other than cellulose powder that is highly biodegradable. 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, and melamine resin; butyl acrylate-vinyl acetate copolymer, styrene-acrylic acid copolymer, silicone resin, and divinylbenzene-styrene copolymer.

[0057] The cosmetic of the present invention can be produced by a conventional method and can be made into a formulation such as a liquid, emulsion, paste, cream, gel, or solid. Furthermore, the cosmetic of the present invention can be in the form of an emulsion cosmetic, a powder cosmetic, or the like, and is preferably an emulsion cosmetic such as a water-in-oil emulsion cosmetic or an oil-in-water emulsion cosmetic, with a water-in-oil emulsion cosmetic being more preferred.

[0058] The cosmetic of the present invention can be used, for example, as makeup cosmetics such as a makeup base, foundation, concealer, blusher, and eye shadow; as ultraviolet protection cosmetics such as a sunscreen emulsion and sunscreen cream; and is suitable as a makeup cosmetic. [Example]

[0059] Production Example 1 (Production of poly(N-propionylethyleneimine)-modified silicone): 12.9 g (0.13 mol) of 2-ethyl-2-oxazoline and 27.7 g of ethyl acetate were mixed, and the mixture was dehydrated with 2.0 g of molecular sieves (Zeorum A-4, manufactured by Tosoh Corporation) at 28° C. for 15 hours. In addition, 100 g of side-chain primary aminopropyl-modified polydimethylsiloxane (KF-8015, manufactured by Shin-Etsu Silicones, weight average molecular weight 100,000, amine equivalent 20,000) was mixed with 203 g of ethyl acetate, and the mixture was dehydrated with 15.2 g of molecular sieves at 28°C for 15 hours. To the ethyl acetate solution of the dehydrated 2-ethyl-2-oxazoline, 0.77 g (0.005 mol) of diethyl sulfate was added, and the mixture was heated under reflux at 80°C for 8 hours under a nitrogen atmosphere to synthesize terminal-reactive poly(N-propionylethyleneimine). The number average molecular weight measured by GPC was 2700. This terminally reactive poly(N-propionylethyleneimine) solution was added all at once to the above dehydrated side chain primary aminopropyl-modified polydimethylsiloxane solution, and the mixture was heated to reflux at 80° C. for 10 hours. The reaction mixture was concentrated under reduced pressure to give N-propionylethyleneimine-dimethylsiloxane copolymer as a white rubbery solid (108 g). The mass ratio of organopolysiloxane segments in the final product was 0.87, and the weight-average molecular weight of the final product was 115,000.

[0060] Examples 1 to 4, Comparative Example 1 Water-in-oil emulsion cosmetics (liquid foundations) were prepared with the compositions shown in Table 1, and were evaluated for even application, speed of achieving a uniform finish, and minimal change in application color (5 minutes after application). The results are also shown in Table 1.

[0061] (Manufacturing method) A powder phase containing component (C) was added to an oil phase containing components (A) and (B) and dispersed, and then the aqueous phase components were added and stirred with a homomixer to obtain a water-in-oil emulsion cosmetic (liquid foundation).

[0062] (Evaluation method) (1) Coating unevenness: Five expert evaluators evaluated the evenness of application of each water-in-oil emulsion cosmetic when it was spread on the skin, using the following criteria. The results are shown as the total score of the five evaluators. 5: There is absolutely no unevenness when spreading it on the skin. 4. It does not spread unevenly on the skin. 3: There is very little unevenness when spreading it on the skin. 2: There is some unevenness when spreading it on the skin. 1: There is uneven application when spreading it on the skin.

[0063] (2) Quick and uniform finish: Five expert evaluators applied each water-in-oil emulsion cosmetic to the skin and evaluated how quickly it achieved a uniform finish (ease of spreading) using the following criteria. The results are shown as the total score of the five evaluators. 5;You can achieve a uniform finish fairly quickly. 4;A uniform finish can be achieved quickly. 3; A uniform finish can be achieved somewhat quickly. 2;It is difficult to achieve a uniform finish quickly. 1;It is difficult to achieve a uniform finish quickly.

[0064] (3) Little change in color (5 minutes after application): Five expert evaluators evaluated each water-in-oil emulsion cosmetic on the basis of the following criteria for the degree of change in color immediately after application to the skin and after it had been absorbed (after 5 minutes). The results are shown as the total score of the five evaluators. 5: There is almost no noticeable change in color between immediately after application and after it has been absorbed into the skin (after 5 minutes). 4: There is not much noticeable change in color between immediately after application and after it has been absorbed into the skin (after 5 minutes). 3: The change in color between immediately after application and after letting it soak into the skin (after 5 minutes) is somewhat noticeable. 2: There is a noticeable change in the color of the product immediately after application to the skin and after it has been absorbed (after 5 minutes). 1: The change in color between immediately after application and after letting it soak into the skin (after 5 minutes) is quite noticeable.

[0065] [Table 1]

[0066] Examples 5 to 7 The water-in-oil emulsion cosmetic (liquid foundation) with the composition shown in Table 2 was produced in the same manner as in Examples 1 to 4. It spread evenly on the skin without unevenness, quickly produced a uniform finish, and showed no noticeable change in color between immediately after application and after blending (5 minutes later).

[0067] Table 2

Claims

1. The following components (A), (B), and (C): (A) amino-modified silicone, (B) a volatile oil, (C) Hydrophobically treated color pigment A cosmetic containing

2. 2. The cosmetic according to claim 1, wherein component (C) comprises at least a color pigment treated with an amino acid.

3. 3. The cosmetic preparation according to claim 1, wherein the content of component (A) is 0.1 to 15% by mass, the content of component (B) is 1 to 40% by mass, and the content of component (C) is 1 to 40% by mass.

4. 3. The cosmetic according to claim 1, wherein component (B) comprises one or more oils selected from the group consisting of volatile silicone oils and volatile hydrocarbon oils.

5. 3. The cosmetic according to claim 1, wherein the mass ratio (A) / (C) of component (A) to component (C) is 0.04 to 1.

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