Oily cosmetic

Abstract

To provide an oily cosmetic exhibiting excellent adhesion onto the skin, ensuring a matte finish, exhibiting high covering power of pores, and maintaining superior makeup stability over time.SOLUTION: An oily cosmetic comprises the following components (A), (B), and (C): (A) a hydrocarbon wax solid at 25°C, (B) a powder treated with amino-modified silicone, and (C) an oil component liquid at 25°C, wherein the component (C) comprises at least (C1) a linear silicone oil, and a mass ratio (C1) / (C) of the component (C1) in the component (C) is 0.6 or more.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, oil-based cosmetics such as makeup cosmetics have been required to have excellent cosmetic durability, and various studies have been conducted to achieve this. For example, Patent Document 1 describes that an oil-based cosmetic containing a volatile oil, a resin that is insoluble in the volatile oil, a solid oil with a melting point of 75°C or higher, and a dextrin fatty acid ester is excellent in secondary adhesion prevention effect, cosmetic long-lasting effect, and cosmetic film uniformity, as well as being stable over time. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-255014 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional oil-based cosmetics have poor adhesion to the skin and have issues with pore coverage and makeup durability over time. [Means for solving the problem]

[0005] The present inventors have discovered that by combining a hydrocarbon wax that is solid at 25°C, a powder treated with an amino-modified silicone, and a liquid oil component that contains a chain silicone oil, it is possible to obtain an oil-based cosmetic that has excellent adhesion to the skin, provides a matte finish, has high pore-covering power, and has excellent cosmetic durability over time.

[0006] The present invention comprises the following components (A), (B) and (C): (A) a hydrocarbon wax that is solid at 25°C; (B) Amino-modified silicone-treated powder, (C) Oil components that are liquid at 25°C and component (C) contains at least (C1) a chain silicone oil, The present invention relates to an oil-based cosmetic preparation in which the mass ratio (C1) / (C) of component (C1) in component (C) is 0.6 or more. [Effects of the Invention]

[0007] The oily cosmetic composition of the present invention has excellent adhesion to the skin, provides a matte finish, has high pore-covering power, and is excellent in cosmetic durability over time. DETAILED DESCRIPTION OF THE INVENTION

[0008] Component (A) used in the present invention is a hydrocarbon wax that is solid at 25° C. Solid at 25° C. refers to a wax that exhibits solid properties at 25° C. and has a melting point of 50° C. or higher. The hydrocarbon wax of component (A) is not limited as long as it is one that is commonly used in cosmetics, and examples thereof include paraffin, ceresin, synthetic hydrocarbon wax, Fischer-Tropsch wax, microcrystalline wax, polyethylene wax, etc. From the viewpoint of obtaining a matte finish and enhancing pore-covering power, component (A) preferably contains one or more waxes selected from paraffin, microcrystalline wax, and polyethylene wax.

[0009] As the hydrocarbon wax of component (A), commercially available products can be used. For example, as paraffin, Paraffin Wax 125, 130, 135, 140, 150, 155, HNP-3, 5, 9, 10, 11, 12 (all manufactured by Nippon Seiro Co., Ltd.) and the like; as ceresin, Ceresin #810 (manufactured by Nikko Rica Corporation) and the like; as synthetic hydrocarbon wax, Lip Wax A-4 (manufactured by Nippon Natural Products Co., Ltd.) and the like; as microcrystalline wax, Multiwax W-445, W-835 (manufactured by SONNEBORN), Paracera Examples of suitable waxes include M (manufactured by Paramelt), Hi-Mic-1045, 1070, 1080, 2045, 2065, 2095, 3090, and HNP-0190 (all manufactured by Nippon Seiro Co., Ltd.), and refined microcrystalline wax (manufactured by Nikko Rica Corporation); polyethylene waxes include polyethylene wax PW-655N (manufactured by Toshoku Pigment Co., Ltd.), PERFORMALENE 655, and PL POLYETHYLENE (all manufactured by NEW PHASE TECHNOLOGIES); and mixed hydrocarbon waxes include synthetic ceresin SP-1020P (manufactured by STRAHL & PITSCH, INC.).

[0010] Component (A) can be used alone or in combination of two or more, and from the viewpoints of obtaining a matte finish, enhancing pore coverage, and suppressing shine over time, the content is preferably 5% by mass or more of the total composition, more preferably 10% by mass or more, even more preferably 12% by mass or more, and preferably 25% by mass or less, more preferably 22% by mass or less, and even more preferably 19% by mass or less. The content of component (A) is preferably 5 to 25% by mass of the total composition, more preferably 10 to 22% by mass, and even more preferably 12 to 19% by mass.

[0011] The amino-modified silicone-treated powder of component (B) is a powder whose surface is partially or entirely treated with amino-modified silicone. The powders include those used in ordinary cosmetics, such as color pigments, extender pigments, and luster pigments.

[0012] The color pigments are those used in ordinary cosmetics, such as titanium oxide, zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red iron oxide, iron oxide red, iron blue, ultramarine blue, chromium oxide, chromium hydroxide, and other metal oxides, manganese violet, cobalt titanate, and other metal complexes, as well as inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 2 Examples of the pigments to be treated include synthetic organic pigments such as Red No. 20, 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 color, as well as composites of these colored pigments and composite pigments combining these colored pigments with pearl pigments. Examples of the pearl pigments to be treated 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-like alumina powder. Specific examples of composite pigments include titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated mica titanium, 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. Of these, metal oxides are preferred, and it is more preferred to include at least one or more selected from titanium oxide, zinc oxide, yellow iron oxide, black iron oxide, and red iron oxide.

[0013] Examples of extender pigments include 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, it is preferable to contain one or more selected from silicic anhydride, talc, sericite, mica, and synthetic phlogopite, and it is more preferable to contain one or more selected from silicic anhydride and talc.

[0014] The luster pigments include those used in ordinary cosmetics, such as mica, synthetic fluorphlogopite, talc, glass, silica, alumina, or other plate-like powders coated with colorants such as titanium oxide, iron oxide, silicon oxide, Prussian blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, and organic pigments, as well as polyethylene terephthalate-polymethyl methacrylate laminated powder, polyethylene terephthalate-aluminum vapor-deposited powder, polyethylene terephthalate-gold vapor-deposited laminated powder, and other film rolls cut into any desired shape.

[0015] The amino-modified silicone used in treating such powders is preferably a silicone compound having an amino group or an ammonium group, and any of them can be used regardless of their form (liquid, solid, etc.) or whether they have a crosslinked structure. 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.

[0016] An example of an amino-modified silicone that does not have a crosslinked structure is one represented by the following general formula (1).

[0017] [ka]

[0018] (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 a or 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.

[0019] 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.

[0020] Furthermore, the amino-modified silicone is preferably 100 to 3000 mm thick, from the viewpoint that the powder is uniformly coated and a uniform cosmetic film is obtained. 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] In the component (B) used in the present invention, the method for coating the surface of the powder with the amino-modified silicone is not particularly limited, but examples include a dry coating method in which the amino-modified silicone and the powder are directly mixed together to coat; a wet coating method in which the amino-modified silicone is dissolved or dispersed in an organic solvent (for example, one or more selected from ethanol, isopropyl alcohol, n-hexane, etc.), the powder is added to this solution or dispersion, and after mixing, the solvent is removed by drying or the like, and the mixture is heated and pulverized; a mechanochemical method, etc. Appropriate combinations of these methods are also possible.

[0029] Furthermore, in the component (B) used in the present invention, the method for surface-coating the powder with the amino-modified silicone is not particularly limited, but for example, a method can be used in which the surface-coating treatment agent (a) and the silicone micro-crosslinked product of the surface-coating treatment agent (b) are precipitated on the powder particle surface in the presence of an extender pigment using an in-situ method, and then heated to fix the silicone micro-crosslinked product to the particle surface. This method increases the uniformity of the coating on the powder particle surface, and allows for the production of a surface-coated powder that is soft to the touch, has excellent adhesion to the skin, and improves sebum solidification performance.

[0030] Component (B) thus obtained is a powder whose surface is coated with amino-modified silicone, and the amount of coating is not particularly limited. From the viewpoint of further improving the sebum solidification performance, the mass ratio of the powder that can be surface-coated to the amino-modified silicone in component (B) is preferably (powder that can be surface-coated):(amino-modified silicone)=99.99:0.01 to 70:30, more preferably 99.9:0.1 to 90:10.

[0031] Commercially available amino-modified silicone-treated powders of component (B) used in the present invention include, for example, talc EX-15WA3 (manufactured by Yamaguchi Mica Co., Ltd.), mica Y-2300WA3 (manufactured by Yamaguchi Mica Co., Ltd.), SE-S-100S (treated powder is sericite) (manufactured by Miyoshi Chemicals Co., Ltd.), SE-TA-13R, SE-TA-46R (treated powder is talc) (manufactured by Miyoshi Chemicals Co., Ltd.), and MiyoSYN Examples include Fine-SE (treated powder is synthetic phlogopite) (manufactured by Miyoshi Chemicals Co., Ltd.), SE-MA-23 (treated powder is mica) (manufactured by Miyoshi Chemicals Co., Ltd.), NK-10WA3 (treated powder is synthetic phlogopite) (manufactured by Yamaguchi Mica Co., Ltd.), PSG-05WA5 (treated powder is silicic anhydride) (manufactured by Yamaguchi Mica Co., Ltd.), and TMS-05DCA (treated powder is silicic anhydride) (manufactured by Teika Co., Ltd.), but are not limited to these, and may also be produced by known methods.

[0032] Component (B) used in the present invention is preferably a powder treated with an amino-modified silicone having no crosslinked structure, more preferably a body pigment treated with an amino-modified silicone having no crosslinked structure, even more preferably a body pigment treated with an amino-modified silicone represented by the general formula (1) above, even more preferably an extender pigment treated with amodimethicone, and even more preferably one or more selected from amodimethicone-treated silicic anhydride and amodimethicone-treated talc.

[0033] Component (B) of the present invention can be one that has been treated simultaneously or separately with a treating agent other than amino-modified silicone (for example, fatty acid, metal soap, various powders, etc.). An example of a commercially available product that has been subjected to a composite treatment is TMS-05DCA (the treated powder is compositely treated with silicic anhydride and distearyldimonium chloride) (manufactured by Teika Corporation). It is more preferable that the outermost layer of component (B) of the present invention is an amino-modified silicone, as this allows the effects of the present invention to be more pronounced.

[0034] Component (B) can be used alone or in combination of two or more, and from the viewpoint of improving skin adhesion and suppressing shine over time, the content is preferably 3% by mass or more of the total composition, more preferably 5% by mass or more, even more preferably 7% by mass or more, and preferably 25% by mass or less, more preferably 22% by mass or less, and even more preferably 20% by mass or less. The content of component (B) is preferably 3 to 25% by mass of the total composition, more preferably 5 to 22% by mass, and even more preferably 7 to 20% by mass.

[0035] Component (C) is an oil component that is liquid at 25° C. Liquid means that it has fluidity, and includes paste-like states. The oil component of component (C) may be any oil commonly used in cosmetics, such as hydrocarbon oils, ester oils, ether oils, silicone oils, and higher alcohols.

[0036] More specifically, examples of hydrocarbon oils include straight-chain or branched-chain hydrocarbon oils such as squalane, vegetable squalane, liquid paraffin, liquid isoparaffin, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, and petrolatum.

[0037] Ester oils include monoester oils, diester oils, triester oils and tetraester oils. Examples of monoester oils include monoesters of aliphatic or aromatic monocarboxylic or dicarboxylic acids having 2 to 24 carbon atoms, and specific examples thereof include cetyl 2-ethylhexanoate, cetyl octanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, isopropyl palmitate, octyl palmitate, and palmitate. Examples of the hydroxybenzoates include 2-hexyldecyl butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, octyldodecyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, alkyl benzoate (C12 to C15), and octyldodecyl 12-stearoyl stearate.

[0038] Examples of diester oils include diesters of dicarboxylic acids having 3 to 18 carbon atoms and difatty acid esters of polyhydric alcohols. Specific examples include propylene glycol dicaprylate, neopentyl glycol dicaprate, glycol distearate, propylene glycol diisostearate, glyceryl diisostearate, glyceryl monomyristate monoisostearate, glycerin di-2-heptylundecanoate, di-2-ethylhexyl succinate, diisopropyl sebacate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, diisobutyl adipate, di-2-heptylundecyl adipate, and di-2-ethylhexyl sebacate.

[0039] Triester oils include tri-fatty acid esters of trivalent or higher polyhydric alcohols, and specific examples include glyceryl trimyristate, glyceryl triisopalmitate, glyceryl tri-2-heptylundecanoate, trimethylolpropane triethylhexanoate, trimethylolpropane trioctanoate, tri(caprylic / capric)glyceryl, glyceryl trioleate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, olive oil, and jojoba oil.

[0040] Examples of tetraester oils include tetra-fatty acid esters of tetrahydric or higher polyhydric alcohols, and specific examples include pentaerythritol tetra(behenate / benzoate / ethylhexanoate), pentaerythritol tetraethylhexanoate, pentaerythritol tetraoctanoate, and pentaerythritol tetra-2-ethylhexanoate.

[0041] The ether oils include dialkyl ethers, and specific examples thereof include dihexyl ether, dicaprylyl ether, and cetyl-1,3-dimethylbutyl ether.

[0042] Examples of silicone oils include crosslinked methylpolysiloxane, network methylpolysiloxane, methylpolysiloxane, methyltrimethicone, dimethylcyclopolysiloxane, methylphenylpolysiloxanes such as diphenylsiloxyphenyltrimethicone, and higher alcohol-modified organopolysiloxanes. Examples of volatile silicone oils include linear methylpolysiloxanes such as methylpolysiloxane (1cs), methylpolysiloxane (1.5cs), and methylpolysiloxane (2cs); branched siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; and cyclic dimethylsiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

[0043] Examples of higher alcohols include those having a linear or branched alkyl or alkenyl group having 10 to 24 carbon atoms, such as lauryl alcohol, myristyl alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyldodecanol, and oleyl alcohol.

[0044] Component (C) contains at least (C1) a chain silicone oil. The chain silicone oil (C1) may be either a volatile silicone oil or a non-volatile silicone oil. Examples of volatile linear silicone oils include hexamethyldisiloxane, octamethyldisiloxane, methyltrimethicone, and methylpolysiloxanes having a kinematic viscosity of 2cs or less at 25°C, such as methylpolysiloxane (1cs), methylpolysiloxane (1.5cs), and methylpolysiloxane (2cs). Of these, linear methylpolysiloxanes are preferred. An example of the non-volatile chain silicone oil is methylpolysiloxane (6cs). Since component (C1) has low compatibility with squalane, it is preferable that it contains at least a volatile chain silicone oil, and more preferably at least a volatile chain methylpolysiloxane, from the viewpoints of preventing the powder from coming off due to the influence of sebum, sweat, etc., while improving the adhesion of the powder to the skin, maintaining a matte finish, and preventing the skin from becoming shiny.

[0045] One or more types of component (C1) can be used, and the content thereof is preferably 15% by mass or more, more preferably 23% by mass or more, even more preferably 30% by mass or more, and preferably 70% by mass or less, more preferably 63% by mass or less, and even more preferably 57% by mass or less, based on the viewpoints of improving adhesion between the powder and the skin, maintaining a matte finish, and preventing skin greasiness. The content of component (C1) is preferably 15 to 70% by mass, more preferably 23 to 63% by mass, and even more preferably 30 to 57% by mass, based on the total composition.

[0046] In the present invention, the mass ratio (C1) / (C) of component (C1) in component (C) is 0.6 or more, preferably 0.65 or more, more preferably 0.72 or more, and preferably 1 or less, more preferably 0.94 or less, and even more preferably 0.92 or less, from the viewpoints of improving the adhesion of the powder to the skin, maintaining a matte finish, and preventing skin greasiness. Furthermore, the mass ratio (C1) / (C) of component (C1) in component (C) is 0.4 or more, preferably 0.6 to 1, more preferably 0.65 to 0.94, and even more preferably 0.72 to 0.92.

[0047] One or more types of component (C) can be used, and the content of component (C1) in the total composition is preferably 25% by mass or more, more preferably 35% by mass or more, and even more preferably 42% by mass or more, and is preferably 70% by mass or less, more preferably 67% by mass or less, and even more preferably 62% by mass or less, from the viewpoint of improving the adhesion of the powder to the skin. The content of component (C) in the total composition is preferably 25 to 70% by mass, more preferably 35 to 67% by mass, and even more preferably 42 to 62% by mass.

[0048] In the present invention, the mass ratio (A) / (C1) of component (A) to component (C1) is preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.24 or more, and preferably 0.6 or less, more preferably 0.5 or less, even more preferably 0.4 or less, and even more preferably 0.35 or less, from the viewpoints of improving adhesion to the skin, achieving a matte finish, high pore coverage, and excellent makeup durability over time. Furthermore, the mass ratio (A) / (C1) of component (A) to component (C1) is preferably 0.1 to 0.6, more preferably 0.1 to 0.5, even more preferably 0.2 to 0.4, and even more preferably 0.24 to 0.35.

[0049] In the present invention, the mass ratio (B) / (C1) of component (B) to component (C1) is preferably 0.1 or more, more preferably 0.12 or more, even more preferably 0.15 or more, and preferably 0.6 or less, more preferably 0.55 or less, even more preferably 0.45 or less, and even more preferably 0.3 or less, from the viewpoints of improving adhesion to the skin, achieving a matte finish, high pore coverage, and excellent makeup durability over time. Furthermore, the mass ratio (B) / (C1) of component (B) to component (C1) is preferably 0.1 to 0.6, more preferably 0.1 to 0.55, even more preferably 0.12 to 0.45, and even more preferably 0.15 to 0.3.

[0050] The oily cosmetic of the present invention may further contain powder other than component (B). Such powders include those used in ordinary cosmetics, such as color pigments and luster pigments, and those exemplified as component (B) (those not treated with amino-modified silicone) can be used. These powders can be used as they are, or can be hydrophobized by a conventional method other than amino-modified silicone. Examples of hydrophobic treatments include surface treatments such as fluorine compound treatment, silicone treatment other than amino-modified silicone, 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 silicone treatment, amino acid treatment, and acylated amino acid treatment are preferred.

[0051] Examples of amino acids used to treat these powders include proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, glutamic acid, etc., including salts thereof. Furthermore, 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 of these include Na, Ca, Al, Mg, Zn, Zr, and Ti salts. Specifically, from the viewpoints of obtaining a matte finish, having high pore-covering power, and suppressing greasiness due to sebum, hydrophobic treatments are preferably performed with silicone, disodium stearoyl glutamate, sodium lauroyl aspartate, or disodium cocoyl glutamate, and more preferably with silicone, sodium lauroyl aspartate, or disodium cocoyl glutamate.

[0052] Of these powders, it is preferable to include one or more selected from titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, and black iron oxide, more preferably to include one or more selected from titanium oxide and zinc oxide, and even more preferably to include at least zinc oxide. These powders may be used either untreated or hydrophobized. The content of these powders 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 viewpoints of achieving a matte finish, high pore-covering power, and suppressing greasiness due to sebum.

[0053] In addition to the above-mentioned components, the oily cosmetic of the present invention may contain components that are commonly used in cosmetics, such as oily components other than those mentioned above, powders other than those mentioned above, surfactants, lower alcohols, polyhydric alcohols, polymeric compounds, ultraviolet absorbers, antioxidants, fragrances, antifouling agents, moisturizers, water, etc.

[0054] From the viewpoints of being environmentally friendly and providing an excellent feel when used, the oil-based cosmetic of the present invention preferably contains organic resin powder such as microplastics in an amount of 1% by mass or less, more preferably 0.1% by mass or less, and even more preferably 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.

[0055] The oily cosmetic of the present invention can be produced by a conventional method and can be in either a solid or non-solid form. It is suitable as an oily solid cosmetic. The oil-based cosmetic of the present invention is a cosmetic having an oil component as a continuous phase, and can be used, for example, as base makeup cosmetics such as a makeup base, foundation, and concealer; and as makeup cosmetics such as blusher and eye shadow, and is suitable as a base makeup cosmetic. [Example]

[0056] Examples 1 to 5, Comparative Examples 1 to 2 Oily solid cosmetics (stick-type foundations) were prepared with the compositions shown in Table 1, and the adhesion to the skin, matte finish, pore-covering power, and makeup durability were evaluated. The results are also shown in Table 1.

[0057] (Manufacturing method) Components (A), (C), and other oil components were heated and melted at 105°C for 30 minutes, and then uniformly mixed using a disperser. Next, other powders, including component (B), were added, and the mixture was uniformly mixed for an additional 15 minutes. After degassing, the mixture was cooled to room temperature and solidified. The required amount was cut out from this bulk, heated and melted at 100°C in a microwave oven, poured into a mold, and cooled and solidified to obtain a stick-type foundation (oil-based solid cosmetic).

[0058] (Evaluation method) Five expert evaluators conducted a sensory evaluation of each oil-based solid cosmetic product (stick foundation) using the following criteria for adhesion to the skin, matte finish, pore coverage, and makeup durability. The results are shown as the cumulative scores of the five experts.

[0059] (1) Skin adhesion: 5. Adhesion after application is very good. 4. Good adhesion after application. 3: Adhesion after application is fairly good. 2: The adhesion after application is not very good. 1: Poor adhesion after application.

[0060] (2) Matte finish: 5. Gives a very matte makeup finish. 4. Gives a matte makeup finish. 3: Gives a slightly matte makeup look. 2: It doesn't give a very matte makeup look. 1: You can't get a matte makeup look.

[0061] (3) Pore coverage: 5. Covers pores well. 4;Can cover pores. 3: It can cover pores slightly. 2: Doesn't cover pores very well. 1;It doesn't cover pores.

[0062] (4) Makeup durability: 5. After 6 hours of applying makeup, there is no noticeable shine. 4. After 6 hours of applying makeup, the shine is less noticeable. 3: After 6 hours of applying makeup, shine is slightly less noticeable. 2: After 6 hours of applying makeup, the shine becomes noticeable. 1: Six hours after applying makeup, the shine is very noticeable.

[0063] [Table 1]

[0064] Examples 6-7 An oily cosmetic (foundation) having the composition shown in Table 2 was produced. All of the oil-based cosmetics (foundations) obtained have excellent adhesion to the skin, provide a matte finish, have high pore-covering power, and are excellent in makeup durability over time.

[0065] (Manufacturing method) Components (A), (C), and other oil components were heated to 100°C for 30 minutes to dissolve, and then uniformly mixed using a disperser. Next, other powders including component (B) were added, and the mixture was uniformly mixed for another 15 minutes. After degassing, the mixture was poured into a container and cooled to obtain a foundation (oil-based cosmetic).

[0066] [Table 2]

[0067] Examples 8-9 Oily solid cosmetics (stick-type foundations) having the compositions shown in Table 3 were produced in the same manner as in Examples 1-5. All of the obtained oil-based solid cosmetics (stick-type foundations) have excellent adhesion to the skin, provide a matte finish, have high pore-covering power, and are excellent in makeup durability over time.

[0068] [Table 3]

Claims

1. The following components (A), (B), and (C): (A) a hydrocarbon wax that is solid at 25°C; (B) an amino-modified silicone-treated powder; (C) Oil component that is liquid at 25°C and component (C) contains at least (C1) a chain silicone oil, An oil-based cosmetic preparation in which the mass ratio (C1) / (C) of component (C1) in component (C) is 0.6 or more.

2. 2. The oily cosmetic according to claim 1, wherein the content of component (A) is 5 to 25% by mass, the content of component (B) is 3 to 25% by mass, the content of component (C) is 25 to 70% by mass, and the content of component (C1) is 15 to 70% by mass.

3. 3. The oily cosmetic according to claim 1, wherein the mass ratio (B) / (C1) of component (B) to component (C1) is 0.1 to 0.

6.

4. 3. The oily cosmetic according to claim 1, wherein the mass ratio (A) / (C1) of component (A) to component (C1) is 0.1 to 0.

6.

5. 3. The oily cosmetic according to claim 1, which is a base makeup cosmetic.

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