Powder cosmetic

Abstract

To provide a powder cosmetic that has excellent spreadability during application and strong adherence to the skin, achieves a bright finish immediately after application, and avoids makeup shine, fading, or smudging over time, while providing excellent luminance in the finish.SOLUTION: A powder cosmetic comprises the following components (A), (B), (C), and (D): (A) a powder treated with amino-modified silicone, (B) boron nitride, (C) zinc oxide, and (D) an oil component having a melting point of 30°C or higher and less than 61°C in an amount of 0.05 to 4 mass%, with the mass ratio (B) / (D) of component (B) to component (D) ranging from 10 to 200.SELECTED DRAWING: None

Description

[Technical field]

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

[0002] Conventionally, powder cosmetics are required to have excellent smoothness when applied and excellent cosmetic durability. For example, Patent Document 1 describes that a powder cosmetic containing an amino-modified silicone-treated powder and plate-like zinc oxide spreads smoothly when applied, is free of any sense of strain on the skin such as a squeaky feeling, and further has excellent ultraviolet blocking effects and cosmetic long-lasting effects without imparting an unnatural whiteness to the applied film. Patent Document 2 describes that a solid powder cosmetic containing fine metal oxide particles, an amino-modified silicone-treated powder, and a specific amount of silicone oil has excellent transparency, is free of squeaky feeling, and has excellent surface smoothness of molded products, while also causing no shrinkage of the molded products and having excellent impact resistance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-168636 A [Patent Document 2] International Publication 2019 / 098134 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional powder cosmetics have not been fully satisfactory in terms of spreadability upon application, adhesion, brightness of the finished product, and the like. On the other hand, organic resin powders are used in powder cosmetics and the like because they are soft and have excellent adhesiveness, but they have issues such as poor makeup durability and making the skin look dull. Furthermore, many of the organic spherical powders are called microplastic beads, which have become a major social problem in the marine environment and their inclusion in cosmetics is gradually being restricted. [Means for solving the problem]

[0005] The present inventors have discovered that, even without containing an organic resin powder, a powder cosmetic can be obtained by combining boron nitride and an oil component having a melting point of 30 to less than 61°C in a specific mass ratio with a cosmetic containing an amino-modified silicone-treated powder and zinc oxide, which has excellent spreadability during application and adhesion to the skin, a bright finish immediately after application, and no shine, makeup bleeding or smudging over time, and has an excellent bright finish.

[0006] The present invention comprises the following components (A), (B), (C) and (D): (A) Amino-modified silicone-treated powder, (B) boron nitride, (C) zinc oxide, (D) Oil components having a melting point of 30 to less than 61°C: 0.05 to 4% by mass and the mass ratio (B) / (D) of component (B) to component (D) is 10 to 200. Effect of the Invention

[0007] The powder cosmetic of the present invention has excellent spreadability and adhesion to the skin during application, gives a bright finish immediately after application, and does not become shiny, crease, or smudge over time, resulting in an excellent bright finish. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The amino-modified silicone-treated powder of component (A) is a powder whose surface has been partially or entirely treated with amino-modified silicone, and the particle shape is not limited and may be, for example, spherical, acicular, plate-like, irregular, etc. There are no limitations on the powder as long as it is one that is commonly used in cosmetics, and examples of the powder that can be used include extender pigments, coloring pigments, and luster pigments. Examples of the extender pigment include inorganic pigments such as silicic acid, 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, alumina, and 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.

[0009] Examples of color pigments include metal oxides such as titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, Prussian blue, ultramarine, chromium oxide, chromium hydroxide, and (titanium / titanium oxide) sinters; 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 color.

[0010] Examples of the luster pigment that can be used include plate-like powders such as mica, synthetic phlogopite, glass, talc, silicic anhydride, and alumina, the surface of which is coated with a colorant such as titanium oxide, iron oxide, silicon oxide, iron blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, and organic pigments.

[0011] The amino-modified silicone used in treating such powders is preferably a silicone compound having an amino group or an ammonium group, and any compound can be used regardless of its form (liquid, solid, etc.), the presence or absence of a crosslinked structure, etc. The amino-modified silicone is preferably an amino-modified silicone having no cross-linked structure and / or an amino-modified silicone having a cross-linked structure, and more preferably an amino-modified silicone having a cross-linked structure.

[0012] An example of the amino-modified silicone having no crosslinked structure is one represented by the following general formula (1).

[0013] [ka]

[0014] (In the formula, R is a hydroxyl group, a hydrogen atom, or R a R a represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and X is 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 each 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.

[0015] The amino equivalent of the amino-modified silicone is preferably from 200 g / mol to 30,000 g / mol, more preferably from 500 g / mol to 10,000 g / mol, and even more preferably from 600 g / mol to 5,000 g / mol. Here, amino equivalent means the mass of the siloxane skeleton per amino group or ammonium group. The unit of g / mol is the value converted per 1 mole of amino group or ammonium group. Therefore, the smaller the amino equivalent value, the higher the ratio of amino group or ammonium group in the molecule.

[0016] In addition, the amino-modified silicone is preferably 100 to 3000 mm thick in order to uniformly coat the powder and obtain a uniform cosmetic film. 2 It is more preferable that the amino-modified silicone has a kinematic viscosity in the range of 100 / s (25°C). It may be used in the form of an emulsion. The amino-modified silicone emulsion can be prepared, for example, by mechanically mixing the amino-modified silicone with a solvent at high shear, by emulsifying the amino-modified silicone with water and an emulsifier, or a combination of these, or by emulsion polymerization.

[0017] A specific example of a suitable commercially available amino-modified silicone (kinetic viscosity (25° C.)) is SF8451C (manufactured by Dow Corning Toray Silicone Co., Ltd., kinetic viscosity 600 mm 2 / s, amino equivalent 1700g / mol), SF8452C (Toray Dow Corning Silicone Co., Ltd., kinematic viscosity 700mm 2 / s, amino equivalent 6400g / mol), SF8457C (Toray Dow Corning Silicone Co., Ltd., kinematic viscosity 1200mm 2 / s, amino equivalent 1800g / mol), KF8003 (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 1850mm 2 / s, amino equivalent 2000g / mol), KF8004 (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 800mm 2 / s, amino equivalent 1500g / mol), KF867S (Shin-Etsu Chemical Co., Ltd., kinematic viscosity 1300mm 2 / s, amino equivalent 1700g / mol), XF42-B8922 (Momentive Performance Materials, kinematic viscosity 70000mm 2 and amino-modified silicone oils such as SM8704C (manufactured by Dow Corning Toray Silicones, amino equivalent 1800 g / mol). They may also be produced by known production methods. One or more of these may be used.

[0018] The amino-modified silicone having a crosslinked structure is not particularly limited, but for example, a polymer having a silicone micro-three-dimensional crosslinked structure (hereinafter also referred to as "silicone micro-crosslinked product") obtained by condensation reaction of the following surface coating treatment agent (a) and the following surface coating treatment agent (b). In addition, the surface coating treatment agent (a) and the following surface coating treatment agent (b) can be produced by a known method, and a commercially available product can also be used.

[0019] Surface coating 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.

[0020] 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, 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.

[0021] 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 above general formula (2). The form of the surface coating treatment agent (a) is not particularly limited, but in the present invention, it is preferred to use it in the form of an aqueous suspension or aqueous emulsion in terms of improving the feel, etc. The method for preparing this aqueous emulsion of (a) may be a 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 ends.

[0022] The surface coating treatment agent (b) is an amino group-containing silane compound, which is represented by the above general formula (3). The surface coating 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 preferable. In addition, R 3 The hydrocarbon group preferably has 1 to 10 carbon atoms. An example of a commercially available surface coating treatment agent (b) is 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 be produced by a known method.

[0023] 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, etc., it is preferable that the mass ratio of the surface coating treatment agents (a) to (b) is (surface coating treatment agent (a)):(surface coating treatment agent (b))=100:0.1 to 100:35. The silicone microcrosslinked product is preferably a polymer that does not have rubber elasticity (i.e., rubber hardness). A polymer that does not have rubber hardness is one whose measured value in the measurement method (soft rubber hardness measurement) using a durometer type AO specified in ISO7619-1 is less than 10, more preferably less than 5.

[0024] Furthermore, the rheological properties of the silicone micro-crosslinked product are not particularly limited, but from the standpoint of excellent adhesion to the skin, etc., it is preferable that the complex modulus of elasticity in dynamic viscoelasticity measurement (25°C, strain rate 17%, shear frequency 4 Hz) be 3,000 to 100,000 Pa and the loss factor tan δ (loss modulus G" / storage modulus G') be 1.0 to 2.5. More preferably, the complex modulus is 10,000 to 100,000 Pa and the loss factor tan δ is 1.0 to 2.0.

[0025] The rheological properties of the slightly crosslinked silicone material can be measured as follows. Dynamic viscoelasticity measuring device: Rheosol-G3000 (UBM), Measurement fixture: 20mm diameter parallel plate, Measurement frequency: 4Hz, Measurement temperature: 25±1.0℃, Measurement distortion settings: Set the distortion rate to 17% and perform measurements in automatic measurement mode. Measurement sample thickness (gap): 1.0 mm, The shear frequency was set to 4 Hz because it is within the range of typical physical motion speeds for humans and is similar to the speed at which cosmetics are applied to the skin.

[0026] In the component (A) used in the present invention, the method of coating the surface of these powders with amino-modified silicone is not particularly limited, but examples thereof include a dry coating method in which the amino-modified silicone and the powder are directly mixed and coated; a wet coating method in which the amino-modified silicone is dissolved or dispersed in an organic solvent (e.g., 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, heated and pulverized; a mechanochemical method, etc. It is also possible to combine these methods appropriately.

[0027] In addition, in the component (A) used in the present invention, the method of surface-coating these powders with amino-modified silicone is not particularly limited, but for example, a method can be used in which the silicone micro-crosslinked product of the surface-coating treatment agent (a) and the surface-coating treatment agent (b) is precipitated on the powder particle surface in the presence of powder by in-situ method, and then heated to fix the silicone micro-crosslinked product on the particle surface.By this method, the uniformity of the coating on the powder particle surface can be increased, and a surface-coated powder can be obtained that has a better light feeling of use and better adhesion to the skin.

[0028] The component (A) thus obtained is a powder surface coated with amino-modified silicone, and the amount of the coating is not particularly limited. From the viewpoint of a smoother, lighter feel, a moist feeling, and excellent adhesion to the skin, the mass ratio of the powder to be surface-coated and the amino-modified silicone in the component (A) is preferably (powder to be surface-coated):(amino-modified silicone)=99.99:0.01 to 70:30, more preferably 99.9:0.1 to 90:10.

[0029] Examples of commercially available amino-modified silicone-treated powders of component (A) used in the present invention include, but are not limited to, mica Y-2300WA3 (manufactured by Yamaguchi Mica Co., Ltd.), EX-15WA3 (manufactured by Yamaguchi Mica Co., Ltd.), SE-S-100S (treated powder is sericite) (manufactured by Miyoshi Chemical Industries, Ltd.), SE-TA-13R, SE-TA-46R (treated powder is talc) (manufactured by Miyoshi Chemical Industries, Ltd.), MiyoSYN Fine-SE (treated powder is synthetic phlogopite) (manufactured by Miyoshi Chemical Industries, Ltd.), SE-MA-23 (treated powder is mica) (manufactured by Miyoshi Chemical Industries, Ltd.), NK-10WA3 (treated powder is synthetic phlogopite) (manufactured by Yamaguchi Mica Co., Ltd.), and PSG-05WA5 (treated powder is silicic anhydride) (manufactured by Yamaguchi Mica Co., Ltd.). These may also be produced by known methods. Component (A) of the present invention preferably contains one or more of amodimethicone-treated synthetic phlogopite and amodimethicone-treated silicic anhydride.

[0030] As component (A) of the present invention, a product that has been treated simultaneously or separately with a treating agent other than amino-modified silicone (e.g., fatty acid, metal soap, various powders, etc.) can also be used. Examples of commercially available products that have been subjected to composite treatment include TMS-05DCA (treated powder is composite treatment with silicic anhydride and distearyldimonium chloride) (manufactured by Teika Co., Ltd.). Although not particularly limited, it is more preferable that the outermost layer of component (A) of the present invention is an amino-modified silicone, since this allows the effects of the present invention to be more significantly exhibited.

[0031] The amino-modified silicone-treated powder of component (A) preferably contains a plate-like powder, from the viewpoints of excellent adhesion to the skin ridges, excellent brightness of the finish, and suppression of makeup greasiness, makeup bleeding, and makeup smudging over time. Examples of the plate-like powder include inorganic pigments such as boron nitride, silicic acid, silicic anhydride, magnesium silicate, sericite, talc, mica, kaolin, clay, bentonite, synthetic phlogopite, mica titanium, titanium oxide-coated borosilicate, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, and composite pigments thereof. Specific examples of composite pigments include titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated mica titanium, barium sulfate-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. The plate-like powder preferably contains one or more types selected from mica, synthetic phlogopite, and sericite, and more preferably contains at least synthetic phlogopite. Specifically, amodimethicone-treated synthetic phlogopite is preferred.

[0032] The volume average particle size of the plate-like powder is preferably 1 to 60 μm, more preferably 3 to 30 μm, and even more preferably 5 to 20 μm, from the viewpoints of excellent adhesion to the skin ridges, excellent brightness of the finish, and suppression of makeup shine, makeup slippage, and makeup smudging over time.The aspect ratio of the plate-like powder is preferably 20 to 90, and more preferably 40 to 80, from the viewpoints of excellent adhesion to the skin ridges, excellent brightness of the finish, and suppression of makeup shine, makeup slippage, and makeup smudging over time. In the present invention, the volume average particle size is a value measured using ethanol as a dispersion medium with a laser diffraction scattering type particle size distribution analyzer (LMS-350, manufactured by Seishin Enterprise Co., Ltd.) The volume average particle size is the average particle size based on volume, and is the 50% median size. The average particle thickness is measured using an electron microscope and is calculated by dividing the total value by the number of particles measured.The aspect ratio is calculated by dividing the particle diameter by the average particle thickness.

[0033] Component (A) may be used alone or in combination of two or more, and the content is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 4% by mass or more, preferably 20% by mass or less, more preferably 15% by mass or less, and even more preferably 12% by mass or less, in terms of excellent adhesion to the skin, bright finish immediately after application, suppression of makeup shine, makeup smudging, and makeup smudging over time, and excellent brightness of the finish, in the total composition. The content of component (A) is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, and even more preferably 4 to 12% by mass.

[0034] The boron nitride of component (B) is not particularly limited as long as it is one that is commonly used in cosmetics. The morphology of boron nitride may be any of hexagonal, wurtzite structure, cubic, rhombohedral, and turbostratic structures, and from the viewpoint of excellent spreadability and smooth feel, hexagonal is preferred. From the viewpoints of excellent spreadability and adhesion to the skin when applied, excellent brightness of the finish immediately after application, and excellent brightness of the finish over time, boron nitride has a volume average particle size of preferably 2 to 20 μm, more preferably 4 to 15 μm, and even more preferably 5 to 12 μm.The shape is preferably plate-like. As the boron nitride of the component (B), commercially available products such as SHP-6 (volume average particle size 10 μm), SHP-3 (volume average particle size 6 μm) (all manufactured by Mizushima Ferroalloy Co., Ltd.), PUHP-1109J (volume average particle size 12 μm), PUHP-3008J (volume average particle size 8 μm) (all manufactured by Saint-Gobain), Denka Boron Nitride C-7N (volume average particle size 7.5 μm, manufactured by Denka Co., Ltd.), and Denka Boron Nitride C-10N (volume average particle size 10 μm, manufactured by Denka Co., Ltd.) can be used.

[0035] The boron nitride of component (B) may be used as is, or may be subjected to a hydrophobic treatment by a conventional method before use. Examples of the hydrophobic treatment include surface treatments such as fluorine compound treatment, 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. As the hydrophobizing treatment, from the viewpoints of excellent spreadability during application and brightness of the finished product over time, silicone treatment is preferred, and dimethicone treatment is more preferred. Component (B) preferably contains at least hydrophobically treated boron nitride.

[0036] Component (B) may be used alone or in combination of two or more, and the content is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 15% by mass or more, preferably 40% by mass or less, more preferably 35% by mass or less, and even more preferably 30% by mass or less, in terms of excellent spreadability during application, excellent adhesion to the skin, bright finish immediately after application, and excellent brightness of finish over time, based on the total composition. The content of component (B) is preferably 5 to 40% by mass, more preferably 10 to 35% by mass, and even more preferably 15 to 30% by mass, based on the total composition.

[0037] The zinc oxide of component (C) can be any that is commonly used in cosmetics without any particular limitations. The zinc oxide of component (C) preferably has a volume average particle size of 0.01 to 1 μm, more preferably 0.01 to 0.1 μm, and even more preferably 0.01 to 0.08 μm, from the viewpoint of preventing makeup from becoming shiny, smudging, or smudging over time. As component (C), fine particle zinc oxide is preferred from the viewpoints of providing a bright finish immediately after application, suppressing makeup shine, makeup bleeding, and makeup smudging over time, and providing an excellent brightness of the finish.

[0038] The zinc oxide of component (C) may be used as it is, or may be subjected to a hydrophobic treatment by a conventional method, as in the case of component (B). As the hydrophobization treatment, from the viewpoint of suppressing aggregation of zinc oxide and improving dispersibility in the powder cosmetic, silicone treatment is preferable, and dimethicone treatment is more preferable. Component (C) is preferably zinc oxide that has been hydrophobized.

[0039] Component (C) may be used alone or in combination of two or more, and the content is preferably 0.1% by mass or more in the total composition, more preferably 1% by mass or more, even more preferably 2% by mass or more, preferably 20% by mass or less, more preferably 12% by mass or less, and even more preferably 8% by mass or less, from the viewpoints of brightening the finish immediately after application, suppressing makeup shine, makeup smudging, and makeup smudging over time, and excellent brightness of the finish. The content of component (C) is preferably 0.1 to 20% by mass in the total composition, more preferably 1 to 12% by mass, and even more preferably 2 to 8% by mass.

[0040] Component (D) is an oil component having a melting point of 30 to less than 61°C. In the present invention, the melting point is measured by the third method of the general test method described in the Cosmetic Raw Materials Standards. That is, the sample is gradually heated to 90-92°C while stirring to melt, the heating is stopped, and the sample is allowed to cool to a temperature 8-10°C higher than the melting point. Next, after cooling a thermometer (a petrolatum melting point thermometer specified in the Japanese Industrial Standards B7410) to 5°C, the moisture is wiped off with filter paper, half of the mercury bulb is inserted into the sample, immediately removed, kept vertically and allowed to cool, and when the attached sample becomes cloudy, it is immersed in water at a temperature of 16°C or less for 5 minutes. Next, the thermometer is inserted into the test tube and fixed with a cork so that the distance between the bottom of the thermometer and the bottom of the test tube is 15 mm. This test tube is fixed in a 500mL beaker containing water at about 16°C so that the distance between the bottom of the test tube and the bottom of the beaker is 15 mm, and heated so that the bath temperature increases by 2°C per minute until the temperature of the bath reaches 30°C. Next, heat is continued so that the temperature rises by 1°C per minute, and the temperature is measured when a drop of the sample is removed from the thermometer. This test is carried out three times, and if the difference in the measured values ​​is less than 1°C, the average is taken; if the difference is 1°C or more, five measurements are taken and the average is taken as the melting point.

[0041] The oil component of component (D) is not limited as long as it is one that is used in ordinary cosmetics, and examples thereof include petrolatum (57°C), Japan wax (60°C), synthetic Japan wax (53°C), vinyl leather wax (54°C), dipentaerythrityl hexa(behenate / benzoate / ethylhexanoate) (52°C), cholesteryl hydroxystearate (52°C), dipentaerythrityl tetra(hydroxystearate / isostearate) (50°C), hydrogenated palm oil (47°C), dipentaerythrityl hexahydroxystearate (45°C), tri(caprylic acid / capric acid / myristic acid / stearic acid)glyceryl (40°C), hexa(hydroxyethyl)glyceryl (10 ... Dipentaerythrityl cystearate / stearic acid / rosin acid (37°C), phytosteryl oleate (33°C), glyceryl (ethylhexanoate / stearic acid / adipic acid) (31°C), di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate (33°C), phytosteryl / isostearyl / cetyl / stearyl / behenyl dimer dilinoleate (34°C), dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate (38°C), hard lanolin (49°C), reduced lanolin (45°C), bisdiglyceryl polyacyladipate-2 (39°C), etc. Of these, from the viewpoints of achieving a bright finish immediately after application by uniformly adhering to the surface of the skin's skin grooves and mounds, suppressing makeup shine, makeup bleeding, and makeup smudging over time, and achieving an excellent brightness of the finish, those with a melting point of 32 to 58°C are preferred, and those that contain one or more of petrolatum (57°C), dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) (34°C), and di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate (33°C) are more preferred, and those that contain at least petrolatum (57°C) are even more preferred.

[0042] Component (D) can be used alone or in combination of two or more, and the content is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and 4% by mass or less, preferably 3% by mass or less, and more preferably 2% by mass or less, based on the viewpoint of uniformly adhering to the surface of the skin's skin sulcus and ridges, excellent spread during application, excellent adhesion to the skin, bright finish immediately after application, suppression of makeup shine, makeup creases, and makeup smudges over time, and excellent brightness of the finish. Also, the content of component (C) is 0.05 to 4% by mass, preferably 0.1 to 3% by mass, and more preferably 0.2 to 2% by mass, based on the total composition.

[0043] In the present invention, the mass ratio (B) / (D) of component (B) to component (D) is 10 or more, preferably 15 or more, and more preferably 20 or more, and is 200 or less, preferably 150 or less, and more preferably 120 or less, from the viewpoints of excellent spreadability during application, excellent adhesion to the skin, a bright finish immediately after application, suppression of makeup shine, makeup smudging, and makeup smudging over time, and excellent brightness of the finish. In addition, the mass ratio (B) / (D) of component (B) to component (D) is 10 to 200, preferably 15 to 150, and more preferably 20 to 120.

[0044] In the present invention, the mass ratio of the total amount of components (A) and (C) to component (D), ((A)+(C)) / (D), is preferably 15 or more, more preferably 18 or more, and even more preferably 20 or more, and is preferably 200 or less, more preferably 100 or less, and even more preferably 70 or less, from the viewpoints of excellent spreadability during application, excellent adhesion to skin, a bright finish immediately after application, suppression of makeup shine, makeup bleeding, and makeup smudging over time, and an excellent brightness of the finish. Furthermore, the mass ratio of the total amount of components (A) and (C) to component (D), ((A)+(C)) / (D), is preferably 10 to 200, more preferably 12 to 100, and even more preferably 13 to 70.

[0045] The powder cosmetic preparation of the present invention may further contain an oil component other than component (D). The oil component other than component (D) preferably contains an oil component that is liquid at 20° C. The oil component that is liquid at 20° C. is an oil component that has a melting point of less than 25° C. and has flowability. Such oil components are not limited as long as they are those used in ordinary cosmetics, and examples thereof include linear or branched hydrocarbon oils such as liquid paraffin, light liquid isoparaffin, heavy liquid isoparaffin, mineral oil, squalane, α-olefin oligomer, polyisobutylene, polybutene, hydrogenated polyisobutene, and hydrogenated polydecene; isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, tricyclodecane methyl isononanoate, ethyl isostearate, isobutyl isostearate, isopropyl isostearate, and isostearate. 2-Hexyldecyl phosphate, di-2-hexylhexyl succinate, bis-ethoxydiglycol succinate, hexyl laurate, di(caprylic / capric)propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate, glyceryl diisostearate, polyglyceryl diisostearate, propanediol diisostearate, trimethylolpropane triisostearate, glyceryl triisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, diisostearate malate , octyldodecyl malate, glycerin fatty acid ester, jojoba oil, di(phytosteryl / octyldodecyl) lauroyl glutamate, octyldodecyl myristate, isopropyl myristate, 2-ethylhexyl palmitate, isopropyl palmitate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-hexylhexanoate, glyceryl tri-2-ethylhexanoate, octyldodecyl myristate, 2-hexyldecyl myristate, 2-hexyldecyl 2-ethylhexanoate, neopentylglyceryl di-2-ethylhexanoate Ester oils such as choline, ethylhexyl hydroxystearate, tri(caprylic / capric)glyceryl, trioctanoate, neopentyl glycol dioctanoate, tritridecyl trimellitate, dipentaerythrityl tetraisostearate, pentaerythritol tetraisostearate, octyl methoxycinnamate, 2-ethylhexyl paramethoxycinnamate, and diisopropyl dimerate; higher alcohols such as lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, and octyldodecanol;Examples of the silicone oil include dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and higher alcohol-modified organopolysiloxane; fluoro oils such as fluoropolyether, perfluoroalkyl ether silicone, and fluorine-modified silicone; and phenoxyethanol. These oil components can be used alone or in combination of two or more.

[0046] From the viewpoints of excellent spreadability during application, excellent adhesion to the skin, and excellent brightness of the finish immediately after application, the content of all oil components including component (D) is preferably 0.1% by mass or more in the entire composition, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, preferably 14% by mass or less, more preferably 12% by mass or less, and even more preferably 10% by mass or less. The content of all oil components including component (D) is preferably 0.1 to 14% by mass in the entire composition, more preferably 0.5 to 12% by mass, and even more preferably 1 to 10% by mass.

[0047] The powder cosmetic of the present invention may further contain powders other than components (A), (B) and (C). Such powders may be any powders that are commonly used in cosmetics, and may include those described as the powder of component (A) (untreated) and those that have been hydrophobized.

[0048] One or more types of powders other than components (A), (B), and (C) can be used, and from the viewpoint of spreading beautifully on the skin as a powder cosmetic, the content is preferably 30 to 97 mass%, more preferably 40 to 85 mass%, and even more preferably 45 to 75 mass% of the total composition.

[0049] The powder cosmetic of the present invention may contain, in addition to the above-mentioned components, components that are usually used in cosmetics, such as oil components other than those mentioned above, surfactants, polymeric compounds, antioxidants, fragrances, preservatives, thickeners, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, germicides, skin activators, ultraviolet absorbing agents, moisturizers, and cooling agents.

[0050] From the viewpoint of excellent spreadability during application and adhesion to the skin, the powder cosmetic of the present invention preferably contains no more than 0.1% by mass of a surfactant, preferably no more than 0.01% by mass, and more preferably is substantially free of surfactant.

[0051] From the viewpoint of consideration for the marine environment and excellent usability, it is preferable that the powder cosmetic of the present invention is substantially free of organic resin powder. The organic resin powder referred to here is called microplastic beads, which refer to solid synthetic polymers of 5 mm or less. 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; and butyl acrylate-vinyl acetate copolymer, styrene-acrylic acid copolymer, silicone resin, and divinylbenzene-styrene copolymer, but naturally occurring polymers such as cellulose are not included.

[0052] The powder cosmetic of the present invention can be produced according to a conventional method, and can be produced by either a dry method or a wet method. The powder cosmetic of the present invention can be a solid powder cosmetic, and is preferably produced by a dry process. For example, after all of the powder components including components (A), (B), and (C) are mixed and ground, an oil phase component including component (D) is added and mixed, and the resulting mixture is further ground in a grinder. The ground product is then filled into a container and molded at a molding pressure of 1000 to 2500 kgf, thereby obtaining a solid powder cosmetic.

[0053] The powder cosmetic of the present invention can be, for example, a make-up cosmetic such as face powder, powder foundation, concealer, highlighter, shading, blusher, eye shadow, etc. The powder cosmetic of the present invention is suitable as a solid powder cosmetic. EXAMPLES

[0054] Examples 1 to 7 and Comparative Examples 1 to 3 A solid powder cosmetic (powder foundation) with the composition shown in Table 1 was produced and evaluated for spreadability during application to the skin, adhesion to the skin, brightness of the finished product immediately after application, lack of makeup shine after 6 hours, lack of makeup crease after 6 hours, lack of makeup smudging after 6 hours, and brightness of the finished product after 6 hours. The results are also shown in Table 1.

[0055] (Production method) After all the powder ingredients including components (A), (B) and (C) were mixed and ground, an oil agent including component (D) was added and mixed, and the resulting mixture was further ground in a grinder. The ground product was filled into a container and molded under a molding pressure of 1000 to 2500 kgf to obtain a solid powder cosmetic product (powder foundation).

[0056] (Evaluation method) (1)Spreadability during application to the skin: When each solid powder cosmetic product (powder foundation) was applied, five expert panelists performed a sensory evaluation of the spreadability of the product on the skin during application according to the following criteria. The results were expressed as the total score given by the five panelists. 5;It stretches and spreads very smoothly. 4;Stretches and unfolds smoothly. 3: It can be stretched and unfolded fairly smoothly. 2: It doesn't stretch very smoothly. 1;It does not stretch smoothly.

[0057] (2) Skin adhesion: After applying each solid powder cosmetic product (powder foundation), five expert panelists sensorily evaluated the adhesion to the skin according to the following criteria. The results were shown as the total score of the five panelists. 5. Excellent adhesion to skin. 4.Excellent adhesion to skin. 3: Fairly good adhesion to skin. 2: Not very good adhesion to skin. 1. Poor adhesion to skin.

[0058] (3) Brightness of the finished product immediately after application: Five expert panelists applied each solid powder cosmetic product (powder foundation) and then immediately evaluated the brightness of the finished product according to the following criteria. The results were shown as the total score given by the five panelists. 5;It looks very bright. 4;Looks bright. 3; Looks slightly bright. 2;It doesn't look very bright. 1;It doesn't look bright.

[0059] (4) Lack of shine after 6 hours: Five expert panelists applied each solid powder cosmetic (powder foundation), and then six hours later, the shine of the makeup was evaluated according to the following criteria. The results were shown as the total score of the five panelists. 5;My makeup doesn't get shiny at all. 4; Makeup doesn't get shiny. 3;My makeup doesn't get too shiny. 2; Makeup is slightly shiny. 1;My makeup is shiny.

[0060] (5) Lack of makeup training after 6 hours: Five expert panelists applied each solid powder cosmetic (powder foundation) and then evaluated the makeup training six hours later according to the following criteria. The results were shown as the total score given by the five panelists. 5;I can't wear makeup at all. 4; Makeup is not trendy. 3; I don't wear much makeup. 2;The makeup is a little rough. 1; Makeup is trendy.

[0061] (6) How well the makeup looks after 6 hours: Five expert panelists applied each solid powder cosmetic (powder foundation) and then evaluated the makeup smudging six hours later according to the following criteria. The results were shown as the total score given by the five panelists. 5. Makeup doesn't smudge at all. 4; Makeup doesn't smudge. 3; Makeup doesn't smudge easily. 2; Makeup is slightly smudged. 1; Makeup smudges.

[0062] (7) Brightness of the finish after 6 hours: Five expert panelists applied each solid powder cosmetic product (powder foundation), and then after six hours, they performed a sensory evaluation of the brightness of the finished product according to the following criteria. The results were shown as the total score given by the five panelists. 5;It looks very bright. 4;Looks bright. 3; Looks slightly bright. 2;It doesn't look very bright. 1;It doesn't look bright.

[0063] [Table 1]

[0064] Examples 8 to 10 In the same manner as in Examples 1 to 7, solid powder cosmetics (powder foundations) having the compositions shown in Table 2 were produced. All of the obtained solid powder cosmetics (powder foundations) have excellent spreadability and adhesion to the skin during application, have a bright finish immediately after application, and do not become shiny, crease, or smudge over time, resulting in an excellent bright finish.

[0065] [Table 2]

Claims

1. The following components (A), (B), (C) and (D): (A) an amino-modified silicone-treated powder; (B) boron nitride; (C) zinc oxide, (D) Oil component having a melting point of 30 to less than 61°C: 0.05 to 4% by mass wherein the mass ratio (B) / (D) of component (B) to component (D) is 10 to 200.

2. 2. The powder cosmetic preparation according to claim 1, wherein the content of component (A) is 1 to 20% by mass, the content of component (B) is 5 to 40% by mass, and the content of component (C) is 0.1 to 20% by mass.

3. 3. The powder cosmetic preparation according to claim 1 or 2, wherein the mass ratio of the total amount of components (A) and (C) to component (D), [(A) + (C)] / (D), is 10 to 200.

4. 4. The powder cosmetic preparation according to claim 1, wherein the component (C) is zinc oxide which has been subjected to a hydrophobic treatment.

5. The powder cosmetic according to any one of claims 1 to 4, which does not contain an organic resin powder.

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