WO2020230607A1

WO2020230607A1 - Solid powder cosmetic

Info

Publication number: WO2020230607A1
Application number: PCT/JP2020/017938
Authority: WO
Inventors: 田中　充
Original assignee: 信越化学工業株式会社
Priority date: 2019-05-13
Filing date: 2020-04-27
Publication date: 2020-11-19
Also published as: JPWO2020230607A1

Abstract

This solid powder cosmetic contains composite particles which comprise particles that are formed from alkyl-modified silicone elastomers having a C6-22 alkyl group bonded to a silicon atom, and a silicone resin that covers the surface of said particles; the solid powder cosmetic feels good when used, being soft, smooth, dust-removing, adhesive and easily spread, and also has low hardness and high impact resistance.

Description

Solid powder cosmetics

The present invention relates to solid powder cosmetics, and more specifically, the composite particles having particles made of a specific alkyl-modified silicone elastomer and a silicone resin covering the surface thereof (hereinafter, referred to as alkyl-modified silicone composite particles). In some cases), it relates to a solid powder cosmetic containing.

Conventionally, a technique using spherical particles has been widely known in order to improve usability such as improving the spread of cosmetics at the time of application. However, if a large amount of spherical particles are blended in the solid powder cosmetic, the press moldability and impact resistance may deteriorate, and while the solid powder cosmetic contains a large amount of spherical particles, the press moldability and impact resistance are improved. The technology to have is being studied.

Typical examples of solid powder cosmetics include powder foundation, pressed powder, powder cheek, powder eye shadow, and powder eyebrow. Generally, it is manufactured by a press molding method in which a container is filled with a composition in which a powder component and an oil component are mixed, and the container is compressed and solidified. The powder component is mainly composed of inorganic pigments, organic pigments, resin powders, etc., and the pigments are further divided into colored / pearl pigments for adjusting color tone and luster, and other extender pigments. Typical extender pigments are plate-like powders such as talc, mica, and kaolin, which account for most of the powder components and greatly affect the press moldability, adhesiveness, and usability of cosmetics. Then, by adding characteristic extender pigments such as boron nitride, synthetic phlogopite, and barium sulfate to these basic extender pigments, the characteristics of powdered cosmetics are generally formed. Spherical resin powder made of elastic resin such as silicone elastomer and urethane is a component that is desired to be highly blended because it improves adhesion and elongation to the skin.

In general solid powder cosmetics, the amount of oily components blended is relatively small, so the binding force between powders is weak, and a high press pressure is usually required. As a result, the resulting molded product generally has a hard, powdery feel. Further, when the hardness of the solid powder cosmetic is lowered, the bonding force between the powders is lowered accordingly, so that the molded product is easily cracked by an external force.

In order to solve this problem, a technique has been proposed in which a solid powder cosmetic having excellent impact resistance can be obtained by dispersing wax and dextrin fatty acid ester in the powder (Patent Document 1). In addition, a method of improving impact resistance by surface treatment of particles has also been studied (Patent Documents 2 and 3).

Japanese Unexamined Patent Publication No. 2005-330262 JP-A-2009-209139 Japanese Unexamined Patent Publication No. 2011-11988

The present invention has been made in view of the above circumstances, and is a solid powder cosmetic that is soft, smooth, has good usability such as powder removal, adhesion, and lightness of spread, and has high impact resistance even if it has low hardness. The purpose is to provide.

As a result of diligent studies to achieve the above object, the present inventor has blended a composite particle having particles made of a specific alkyl-modified silicone elastomer and a silicone resin covering the surface thereof to make it soft, smooth, and smooth. Solid powder that has good usability such as powder removal (easy to remove powder from molded products when using solid powder cosmetics), adhesion, and light spread, and has high impact resistance even with low hardness. It was found that cosmetics could be obtained, which led to the present invention.

Therefore, the present invention provides the following solid powder cosmetics.
1. 1. A solid powder cosmetic containing composite particles containing particles made of an alkyl-modified silicone elastomer having an alkyl group having 6 to 22 carbon atoms bonded to a silicon atom and a silicone resin covering the surface thereof.
2. 1 solid powder cosmetic in which the composite particles are polysilicone-22 (cosmetic display name).
3. 3. The solid powder cosmetic according to 1 or 2, wherein the amount of the composite particles blended is 1 to 20% by mass of the total cosmetic.
4. The solid powder cosmetic according to any one of 1 to 3, wherein the hardness measured by the Asker rubber hardness tester JAL8 type after press molding is 1 to 30.

According to the present invention, it is possible to obtain a solid powder cosmetic that is soft and smooth, has good usability such as powder removal, adhesion, and light spread, and has high impact resistance even if it has low hardness.

Hereinafter, the present invention will be described in detail.
The solid powder cosmetic of the present invention contains composite particles having alkyl-modified silicone elastomer particles and a silicone resin that coats the surface thereof. In the present invention, the ingredient name may be indicated by a cosmetic labeling name.

[Composite particles containing particles made of an alkyl-modified silicone elastomer having an alkyl group having 6 to 22 carbon atoms bonded to a silicon atom and a silicone resin coating the surface thereof]
The alkyl-modified silicone elastomer particles are particles composed of an alkyl-modified silicone elastomer having an alkyl group bonded to a silicon atom introduced into the side chain and the terminal, and are particles composed mainly of the alkyl-modified silicone elastomer. .. The alkyl group bonded to the silicon atom is an alkyl group having 6 to 22 carbon atoms, preferably an alkyl group having 8 to 14 carbon atoms, and more preferably an alkyl group having 12 carbon atoms. Further, the alkyl-modified silicone elastomer constituting the alkyl-modified silicone elastomer particles is preferably non-sticky, and the rubber hardness thereof is measured by an Asker C-type hardness tester specified in the Japan Rubber Association Standard (SRIS) 0101. , 20-85, more preferably 30-75. With such rubber strength, the alkyl-modified silicone elastomer particles are likely to have sufficiently suppressed cohesiveness and are rich in fluidity, dispersibility, silky feel, smoothness, and soft feel.

Polyorganosylsesquioxane is preferable as the silicone resin that coats the surface of the alkyl-modified silicone elastomer particles. The coating may be the entire surface or part of the surface of the alkyl-modified silicone elastomer particles. The coating amount is preferably 0.5 to 25 parts by mass of the silicone resin with respect to 100 parts by mass of the alkyl-modified silicone elastomer particles.

The shape of the alkyl-modified silicone composite particles can be confirmed by observing with an optical microscope or an electron microscope, and spherical particles are preferable in terms of usability. The spherical particles are powders having a spherical shape and a diameter close to that of a sphere, and may be a spherical powder having irregularities on the surface. Specifically, the ratio of the minor axis / major axis of the spherical particles is usually Deformed spherical particles in the range of 1 to 4, preferably 1 to 2, more preferably 1 to 1.6, and even more preferably 1 to 1.4 may be used. The average particle size of the powder is not particularly limited, but the volume average particle size (cumulative D ₅₀ (median diameter)) by the Coulter counter method is 0.1 to 1 from the viewpoint of reducing squeaking when applied to the skin and reducing uneven application. 100 μm is preferable, 0.5 to 40 μm is more preferable, and 2 to 15 μm is further preferable. In the present invention, the average particle size of the particles and powder is determined by the above measuring method.

Alkyl-modified silicone composite particles can be obtained by a known method, and among them, polysilicone-22 (cosmetic label name) and Polysilicone-22 (INCI) are preferable. Examples of the polysilicone-22 include KSP-441 (manufactured by Shin-Etsu Chemical Co., Ltd.). Polysilicone-22 is obtained by forming polyorganosylsesquioxane on the surface of particles composed of an alkyl-modified silicone elastomer having an alkyl group having 12 carbon atoms bonded to a silicon atom.

The blending amount of the alkyl-modified silicone composite particles is preferably 1 to 20% by mass, more preferably 3 to 15% by mass in the solid powder cosmetics.

[Solid powder cosmetics]
The solid powder cosmetic is obtained by, for example, mixing a powder component with an oily component which is a binder and press molding, and the powder forms a solid. The solid powder cosmetic is not particularly limited, but can be applied to, for example, powder foundation, pressed powder, powder cheek, powder eye shadow, powder eyebrow, and various other products to which sunscreen performance is imparted. Is.

Since the solid powder cosmetic of the present invention is a solid powder cosmetic having high impact resistance even if the hardness is low, the hardness is 1 to 30 as measured by the Asker rubber hardness tester JAL8 type after press molding. It is preferably present, and more preferably 3 to 15. Specifically, the hardness is measured by filling a sample in an aluminum rectangular dish having a short side of 46 mm, a long side of 55 mm, and a depth of 4.5 mm, press-molding it at a press pressure of 3 MPa, and measuring the hardness of the molded product with an Asker rubber hardness tester. Measure with JAL8 type. The hardness is calculated by measuring a total of 5 points, 4 points at the four corners and 1 point at the center of the molded product, and calculating the average value of the hardness.

The impact resistance is an evaluation of the number of times the molded product is repeatedly dropped from a height of 30 cm onto a lauan material veneer plate having a thickness of 20 mm until an abnormality such as cracking or cracking occurs. In the solid powder cosmetic of the present invention, 5 times or more is preferable, and 7 times or more is more preferable.

The solid powder cosmetics of the present invention can contain ingredients used in cosmetics as long as the effects of the present invention are not impaired. Each of these can be used alone or in combination of two or more. These ingredients are appropriately selected and used according to the type of cosmetics and the like, and the blending amount thereof can be a known blending amount according to the type of cosmetics and the like. Examples of these powder components include component (a) inorganic powder, component (b) organic powder, component (c) colored pigment, component (d) pearl pigment, metal powder pigment and the like. The oily components used as the binder are component (e) a liquid oil agent at 25 ° C., component (f) an oil phase thickener having a melting point of 55 ° C. or higher, component (g) silicone crosslinked product, and component (h) surfactant. Activator, component (i) film agent, component (j) UV protective agent, component (k) oil agent other than component (e), (f), oil thickener other than component (l) (f), component ( m) Other additives and the like can be mentioned.

[Component (a)]
Examples of the inorganic powder include titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, kaolin, sericite, white mica, and synthetic. Mica, gold mica, red mica, black mica, lithia mica, silicic acid, silicic anhydride, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, barium silicate, strontium silicate, metal tungstate , Hydroxyapatite, vermiculite, hygilite, bentonite, montmorillonite, hectrite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride, silica, silylated silica and the like.

When the component (a) is blended, the blending amount is not particularly limited, but it is preferably 10 to 99% by mass, more preferably 30 to 90% by mass in the solid powder cosmetics.

[Component (b)]
Examples of organic powders include polyamide powder, polyacrylic acid / acrylic acid ester powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, tetrafluoroethylene powder, and polymethylmethacrylate. Powder, cellulose powder, silk powder, nylon powder, crosslinked silicone powder (manufactured by Shinetsu Chemical Industry Co., Ltd .; KMP-598, KSG-016F, etc.), silicone resin particles (manufactured by Shinetsu Chemical Industry Co., Ltd .; KMP-590, 591,592, etc.), silicone resin-coated silicone rubber powder (manufactured by Shin-Etsu Chemical Industry Co., Ltd .; KSP-100, 101, 102, 105, 300, 411, etc.) and the like. The spherical powder composed of these organic powders can impart the effect of unevenness correction by blending with cosmetics.

When the component (b) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 30% by mass, more preferably 1 to 20% by mass in the solid powder cosmetics.

[Component (c)]
Examples of colored pigments include inorganic red pigments such as iron oxide, iron hydroxide and iron titanate, inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow iron oxide and ocher, black iron oxide and carbon. Inorganic black pigments such as black, inorganic purple pigments such as manganese violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate, inorganic blue pigments such as dark blue and ultramarine, and tar pigments. Examples thereof include raked natural pigments, raked natural pigments, and synthetic resin powder pigments obtained by combining these powders.

When the component (c) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 30% by mass, more preferably 0.5 to 20% by mass in the solid powder cosmetics.

[Component (d)]
Examples of pearl pigments include titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, titanium oxide-coated colored mica, and the like. Metal powder pigments include aluminum. Examples include powder, copper powder, stainless powder and the like.

When the component (d) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 20% by mass, more preferably 0.5 to 10% by mass in the solid powder cosmetics.

The powder added to the solid powder cosmetic of the present invention is not particularly limited in the particle shape (spherical, needle-like, plate-like), particle structure (porous, non-porous, etc.) of the powder. The average particle size of the powder is preferably 200 μm or less, more preferably 100 μm or less, and even more preferably 50 μm or less. The lower limit is not particularly limited, but may be 0.1 μm.

The powder added to the solid powder cosmetic of the present invention preferably has a hydrophobic surface. Hydrophobic means that it does not disperse in water. If the powder surface is hydrophobic from the beginning, it may be used as it is, or if necessary, the powder that has been hydrophobized as follows may be used. By being a hydrophobic powder, the uniformity of the decorative film, the fit during application, and the adhesion are improved. The hydrophobizing treatment is preferably a surface hydrophobizing treatment with a treatment agent selected from silicone, a fluorine compound, a silane coupling agent, a titanium coupling agent, an N-acylated amino acid, and a metal soap. Among them, inorganic powders, colored pigments, and pearl pigments have a hydrophilic surface, and therefore, a treatment agent selected from silicones, fluorine compounds, silane coupling agents, titanium coupling agents, N-acylated amino acids, and metal soaps. It is preferable to use one that has been made surface hydrophobic.

Suitable silicone treatment agents include, for example, methylhydrogen-type polysiloxane having a Si—H bond as a reactive group (manufactured by Shin-Etsu Chemical Industry Co., Ltd .: KF-99P, KF-9901, etc.) and metal alkoxide. Caprylyl silane (manufactured by Shin-Etsu Chemical Industry Co., Ltd .: AES-3083), silicone branched silicone treatment agent (manufactured by Shin-Etsu Chemical Industry Co., Ltd .: KF-9908, KF-9909, etc.), silicone-modified acrylic treatment Agents (manufactured by Shin-Etsu Chemical Industry Co., Ltd .: KP-574) and the like can be mentioned. In particular, the colored pigment treated with KF-9909 (manufactured by Shin-Etsu Chemical Co., Ltd.) exhibits high water repellency. Powders obtained by treating titanium oxide, yellow iron oxide, red iron oxide, and black iron oxide with KF-9909 are commercially available under the trade names of KTP-09W, KTP-09Y, KTP-09R, and KTP-09B, respectively. (Both manufactured by Shin-Etsu Chemical Industry Co., Ltd.).

[Component (e)]
The oil agent liquid at 25 ° C. is not particularly limited as long as it is used in ordinary cosmetics. Specific examples of the oil agent liquid at 25 ° C. include vegetable oils such as olive fruit oil, jojoba seed oil and macadamia seed oil, animal oils such as liquid lanolin, liquid paraffins, light isoparaffins, liquid isoparaffins, squalanes and the like linear or branched. Hydrocarbon oil, fatty acid esters such as isotridecyl isononanoate, ester oils such as polyhydric alcohol fatty acid esters, dimethylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc. Siloxane oil and the like can be mentioned.

When the component (e) is blended, the blending amount is not particularly limited, but it is preferably 1 to 30% by mass, more preferably 1 to 15% by mass in the solid powder cosmetics.

[Component (f)]
Examples of the oil phase thickener having a melting point of 55 ° C. or higher include waxes, higher alcohols (6 or more carbon atoms), higher fatty acids (6 or more carbon atoms) and polysaccharide fatty acid esters having a melting point of 55 ° C. or higher. Be done. Specific examples of waxes include hydrocarbon waxes such as ceresin, ozokelite, paraffin, synthetic wax, microcrystallin wax, and polyethylene wax, carnauba wax, rice wax, rice bran wax, and jojoba wax (including extremely hydrous jojoba oil). Examples include plant-derived waxes such as candelilla wax, and animal-derived waxes such as whale wax, beeswax, and snow wax. Examples of the higher alcohol include cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and the like. Examples of higher fatty acids include palmitic acid, stearic acid, arachidic acid, behenic acid and the like. Examples of the polysaccharide fatty acid ester include dextrilpluminic acid ester, inulin stearic acid ester, sucrose palmitic acid ester, fructo-oligosaccharide 2-ethylhexanoic acid ester and the like.

When the component (f) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass in the solid powder cosmetics.

[Ingredient (g)]
Examples of the silicone crosslinked product include partially crosslinked methylpolysiloxane, partially crosslinked polyether-modified silicone, and partially crosslinked polyglycerin-modified silicone. For example, KSG-210, 240, 310, 320, 330, 340, 320Z, 350Z, 710, 810, 820, 830, 840, 820Z, 850Z, 15, 1510, 16, 1610, manufactured by Shin-Etsu Chemical Co., Ltd. Examples thereof include 18A, 19, 41A, 42A, 43, 44, 042Z, 045Z, 048Z and the like.

When the component (g) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass in the solid powder cosmetics.

[Component (h)]
By blending the surfactant, the solid powder cosmetic becomes a solid powder cosmetic having more excellent moldability and usability depending on the purpose of use. Surfactants include anionic, cationic, nonionic and amphoteric surfactants, but are not particularly limited, and any surfactant can be used as long as it is used in ordinary cosmetics. Can be used.

Specifically, examples of the anionic surfactant include fatty acid soaps such as sodium stearate and triethanolamine palmitate, alkyl ether carboxylic acids and salts thereof, condensate salts of amino acids and fatty acids, and alkane sulfonates. , Alken sulfonate, fatty acid ester sulfonate, fatty acid amide sulfonate, formalin condensation sulfonate, alkyl sulfate ester salt, secondary higher alcohol sulfate ester salt, alkyl and allyl ether sulfate ester salt, fatty acid Sulfate ester salt of ester, sulfate ester salt of fatty acid alkyloramide, sulfate ester salts such as funnel oil, alkyl phosphate, ether phosphate, alkyl allyl ether phosphate, amid phosphate, N-acyl lactate, Examples thereof include N-acylsulfate salt and N-acylamino acid-based activator. Examples of the cationic surfactant include amine salts such as alkylamine salts, polyamines and aminoalcohol fatty acid derivatives, alkyl quaternary ammonium salts (for example, behentrimonium chloride), aromatic quaternary ammonium salts, pyridium salts, and imidazole. Examples thereof include carboxyvinyl polymers such as lum salts, polyacrylamide-based anionic surfactants, and the like. According to the present invention, a solid powder cosmetic having high impact resistance can be obtained without blending metal soap.

Examples of the nonionic surfactant include sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, methyl glucoside fatty acid ester, alkyl polyglucoside, and polyoxy. Ethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid Ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene phytostanol ether, polyoxyethylene phytosterol ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesterol ether, linear or branched polyoxyalkylene modified Organopolysiloxane (for example, KF-6017, KF-6017P, KF-6028 manufactured by Shin-Etsu Chemical Industry Co., Ltd.), linear or branched polyoxyalkylene-alkyl co-modified organopolysiloxane (for example, Shin-Etsu Chemical Industry Co., Ltd.) KF-6038, KF-6048, etc.), linear or branched polyglycerin-modified organopolysiloxane (for example, KF-6100, KF-6104, KF-6106, etc., manufactured by Shin-Etsu Chemical Industry Co., Ltd.), linear or branched Examples thereof include polyglycerin-alkyl co-modified organopolysiloxane (for example, KF-6105 manufactured by Shin-Etsu Chemical Industry Co., Ltd.), alkanolamide, sugar ether, sugar amide and the like.

Examples of the amphoteric surfactant include betaine, aminocarboxylic acid salt, imidazoline derivative, amidamine type and the like.

When the component (h) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass in the solid powder cosmetics.

[Component (i)]
Examples of the film agent include latexes such as polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate and alkyl polyacrylate, dextrin, cellulose derivatives such as alkyl cellulose and nitrocellulose, fluororesins, aromatic hydrocarbon resins and polymer emulsions. Resins, terpene resins, polybutenes, polyisoprenes, alkyd resins, polyvinylpyrrolidone-modified polymers, rosin-modified resins, polyurethanes and the like are used. Of these, the (Acrylate / ethylhexyl acrylate / dimethicone methacrylate) copolymer is preferable. The (Acrylate / Dimethicone) copolymer is commercially available and dissolved in a solvent, and is commercially available under the trade name of KP-543,545,549,550,545L, etc. (manufactured by Shin-Etsu Chemical Industry Co., Ltd.). The / ethylhexyl acrylate / dimethicone methacrylate) copolymer is commercially available under the trade name of KP-578 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).

Silicone-based coating agents are also preferable, for example, tri (trimethylsiloxy) silylpropylcarbamide acid purulane [commercially available, as a commercially available product, manufactured by Shin-Etsu Chemical Industry Co., Ltd .: TSPL-30-D5, ID] and the like. Silicone-modified polysaccharide compound, silicone resin such as trimethylsiloxysilicic acid (commercially available, as a commercial product, manufactured by Shin-Etsu Chemical Industry Co., Ltd .: KF-7312J, X-21-5250, etc.), Fluorine-modified silicone Examples of the resin, silicone-modified polynorbornene (commercially available products, those dissolved in a solvent, manufactured by Shin-Etsu Chemical Industry Co., Ltd .: NBN-30-ID, etc.), organosiloxane graft polyvinyl alcohol-based polymer, and the like.

When the component (i) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass in the solid powder cosmetics.

[Component (j)]
The UV protection agent is not particularly limited as long as it is a UV protection agent that can be usually blended in cosmetics. Specific examples thereof include an ultraviolet absorber and an ultraviolet scattering agent. Examples of the ultraviolet absorber include homomentyl salicylate, octocrylene, 4-tert-butyl-4'-methoxydibenzoylmethane, 4- (2-β-glucopyranosyloxy) propoxy-2-hydroxybenzophenone, octyl salicylate, 2 -[4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester, dihydroxydimethoxybenzophenone, dihydroxydimethoxybenzophenone sodium disulfonate, dihydroxybenzophenone, dimethicodiethylbenzalmalonate, 1- (3,4-dimethoxyphenyl) -4,4-dimethyl-1,3-pentandione, 2-ethylhexyl dimethoxybenzidenedioxoimidazolidine propionate, tetrahydroxybenzophenone, terephthalilidene dicanfursulfonic acid, 2,4,6-tris [4- (2) -Ethylhexyloxycarbonyl) anilino] -1,3,5-triazine, methylbis trimethoxysilicate (trimethylsiloxy) silylisopentyl, drometrizoletrisiloxane, 2-ethylhexyl paradimethylaminobenzoate, paramethoxysilicate dermal acid Isopropyl, 2-ethylhexyl paramethoxysilicate, 2,4-bis- [{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (4-methoxyphenyl) -1,3,5 -Triazine, 2-hydroxy-4-methoxybenzophenone, hydroxymethoxybenzophenone sulfonic acid and its trihydrate, sodium hydroxymethoxybenzophenone sulfonic acid, phenylbenzimidazole sulfonic acid, 2,2'-methylenebis [6- (2H benzotriazole-) 2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol] and the like can be mentioned. Further, a UVA absorber (for example, hexyl diethylaminohydroxybenzoylbenzoate) and a UVB absorber (for example, ethylhexyl methoxycinnamate) can be used in combination.

When the ultraviolet absorber is blended, the blending amount is not particularly limited, but 0.1 to 20% by mass in the cosmetic is preferable.

Examples of the ultraviolet scattering agent include fine particle metal oxides such as zinc oxide, titanium oxide, iron oxide, cerium oxide, and tungsten oxide. The UV scatterer can also be used in combination with the above UV absorber.

When the ultraviolet scattering agent is blended, the blending amount is not particularly limited, but 0.1 to 30% by mass in the cosmetic is preferable.

[Component (k)]
The oil agent other than the components (e) and (f) is not particularly limited as long as it is a raw material that can be usually blended in cosmetics. Examples thereof include vegetable oils and fats such as shea butter, cacao butter and astropotassium murmur seed oil, fatty acids such as lauric acid and myristic acid, and white petrolatum.

When the component (k) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass in the solid powder cosmetics.

[Ingredient (l)]
The oil-based thickener other than the component (f) is not particularly limited as long as it is a raw material that can be usually blended in cosmetics. Examples thereof include hydrophobic fine particle silica such as silylated silica, metal soaps such as aluminum stearate, and organically modified clay minerals such as disteardimonium hectorite, stearalconium hectorite, and hectorite.

When the component (l) is blended, the blending amount is not particularly limited, but is preferably 0.1 to 5% by mass, more preferably 0.3 to 3% by mass in the solid powder cosmetics.

[Component (m)]
Other additives include, for example, antiperspirants, preservatives / bactericides, fragrances, salts, antioxidants, pH regulators, chelating agents, refreshing agents, anti-inflammatory agents, skin-beautifying ingredients (whitening agents, cell activation Agents, rough skin improvers, blood circulation promoters, skin astringents, anti-seborrheic agents, etc.), vitamins, amino acids, water-soluble polymer compounds, fibers, clathrate compounds, etc.

[Manufacturing method of solid powder cosmetics]
The method for producing the solid powder cosmetic is not particularly limited, and a known method can be adopted. For example, it can be obtained by mixing a powder component with an oil component which is a binder and press molding. The mixing is not particularly limited, and may be mixed using a known mixer such as a Henschel mixer. When a solvent or the like is used, it may include a step of removing the solvent, a step of drying, and the like. The conditions for press molding are not particularly limited, and press molding may be performed using a known press such as a dry press or a wet press.

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In addition, "%" of the composition shows mass%.

[Examples, comparative examples]
The prescription cosmetics shown in the table below were prepared by the following method, and the following characteristics were evaluated.
<Preparation of solid powder cosmetics>
A: All the powder components were put into a Henschel mixer, and the mixture was stirred and mixed.
B: An oily component as a binder was added to the mixture obtained in A, and the mixture was stirred and mixed.
The mixture obtained in C: B is crushed with a hammer mill, filled in an aluminum rectangular dish having a short side of 46 mm, a long side of 55 mm, and a depth of 4.5 mm, and press-molded at 3 MPa to form a molded product (powder foundation). Got

(1) Usability evaluation With respect to the obtained molded product (powder foundation), the items of usability (softness, smoothness, powder removal, adhesion, lightness of spread) were evaluated. The degree of usability was evaluated by 10 specialized panelists. The evaluation was made according to the evaluation criteria shown in Table 1, and the results were judged according to the following criteria based on the average value of 10 persons. The results are also shown in Table 2.

Criteria for usability ◎: Average score is 4.0 points or more ○: Average score is 3.0 points or more and less than 4.0 points Δ: Average score is 2.0 points or more and less than 3.0 points ×: Average score is Less than 2.0 points ○ and ◎ are passed.

(2) Hardness The hardness of the obtained molded product (powder foundation) was measured with an Asker rubber hardness tester JAL8 type. The hardness was measured at a total of 5 points, 4 points at the four corners and 1 point at the center of the molded product, and the average value of the hardness was calculated. The results are also shown in Table 3.

(3) Impact resistance evaluation The obtained molded product (powder foundation) is repeatedly dropped from a height of 30 cm onto a lauan veneer plate with a thickness of 20 mm, and the resistance is determined from the number of times until abnormalities such as cracking and cracking occur. Impact resistance was evaluated. The degree of impact resistance was determined according to the following criteria. The results are also shown in Table 3.
Impact resistance judgment criteria ○: Impact resistance value is 5 times or more Δ: Impact resistance value is 2 times or more and less than 5 times ×: Impact resistance value is less than 2 times ○ is accepted.

The notes in Tables 2 and 3 are as follows.
(Note 1) KSP-441 (manufactured by Shin-Etsu Chemical Co., Ltd.): Average particle size 12 μm
(Note 2) KSP-101 (manufactured by Shin-Etsu Chemical Co., Ltd.): Average particle size 12 μm
(Note 3) KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.): Average particle size 5 μm
(Note 4) KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.): Average particle size 5 μm
(Note 5) Dimic beads CM-1077 (manufactured by Dainichiseika Kogyo Co., Ltd.)
(Note 6) Nylon-SP500 (manufactured by Toray Industries, Inc.)
(Note 7) Ganz Pearl GMX-0610 (manufactured by Aica Kogyo Co., Ltd.)
(Note 8) Silica Microbead P-1500 (manufactured by JGC Catalysts and Chemicals Co., Ltd.)
(Note 9) KTP-09W (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 10) KTP-09R (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 11) KTP-09Y (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 12) KTP-09B (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 13) KF-56A (manufactured by Shin-Etsu Chemical Co., Ltd.)
The blending amount is the blending amount of the described compounded product (the same applies hereinafter).

From the results of Example 1, a solid powder cosmetic having high usability evaluation and high impact resistance was obtained.
From the results of Example 2, it was confirmed that a solid powder cosmetic having high impact resistance can be obtained without adding a metal soap that contributes to the improvement of moldability.
When the particles were not alkyl-modified silicone elastomer composite particles having an alkyl group having 6 to 22 carbon atoms bonded to a silicon atom as in Comparative Examples 1 to 3, the impact resistance was lower than that of Examples.
As in Comparative Examples 4 to 7, the organic or inorganic spherical powder generally used for solid powder cosmetics had poor usability as compared with Examples.
By blending the alkyl-modified silicone composite particles of the present invention, it was possible to obtain a solid powder cosmetic having high impact resistance while maintaining good usability.

[Example 3]
Powder foundation <Preparation of cosmetics>
A: Ingredients 1 to 4 were uniformly mixed.
B: Ingredients 5 to 14 were uniformly mixed.
C: A was added to B and mixed uniformly with a Henschel mixer. The obtained powder was passed through a mesh and then cast into a metal plate using a mold to obtain a powder foundation.
Composition (%)
1. 1. Squalene 3.0
2. Mineral oil 3.0
3. 3. Diphenylsiloxyphenyltrimethicone 2.0
4. Linear polyoxyethylene polyoxypropylene / alkyl covariant organopolysiloxane (Note 14) 0.5
5. Metal soap 1.0
6. Alkyl-modified silicone composite particles (carbon number of alkyl-modified group: 12)
8.0
7. Polymethylsilsesquioxane (Note 15) 2.0
8. Boron Nitride 2.0
9. Silicone treated mica (Note 16) 15.0
10. Silicone treated talc (Note 16) Remaining 11. Silicone treated titanium oxide (Note 17) 7.0
12. Silicone-treated red iron oxide (Note 17) Appropriate amount 13. Silicone-treated iron oxide (Note 17) Appropriate amount
14. Silicone treated black iron oxide (Note 17) Appropriate amount
Total 100.0
(Note 14) KF-6048 (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 15) KMP-591 (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 16) KF-99P treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 17) AES-3083 treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
The obtained powder foundation was smooth, had excellent adhesion, and had good makeup retention.

[Example 4]
Powder foundation <Preparation of cosmetics>
A: Ingredients 1 to 3 were uniformly mixed.
B: Ingredients 4 to 14 were uniformly mixed.
C: A was added to B and mixed uniformly with a Henschel mixer. The obtained powder was passed through a mesh and then cast into a metal plate using a mold to obtain a powder foundation.
Composition (%)
1. 1. Cetyl ethylcaproate 3.0
2. Neopentyl glycol dicaprate 3.0
3. 3. Di lauroyl glutamate (phytosteryl / octyldodecyl)
1.0
4. Silicone-treated fine particle titanium oxide (Note 18) 10.0
5. Silicone treated fine particles Zinc oxide 8.0
6. Alkyl-modified silicone composite particles (carbon number of alkyl-modified group: 22)
10.0
7. Silicone composite powder (Note 3) 2.0
8. N-lauroyl-L-lysine 3.0
9. Synthetic phlogopite 10.0
10. Silicone treated talc (Note 18) Remaining 11. Silicone treated titanium oxide (Note 18) 4.0
12. Silicone-treated red iron oxide (Note 18) Appropriate amount 13. Silicone-treated iron oxide (Note 18) Appropriate amount
14. Silicone treated black iron oxide (Note 18) Appropriate amount
Total 100.0
(Note 18) KF-9901 treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
The obtained powder foundation was smooth, had excellent adhesion, and had good makeup retention.

[Example 5]
Powder foundation <Preparation of cosmetics>
A: Ingredients 1 to 3 were uniformly mixed.
B: Ingredients 4 to 14 were uniformly mixed.
C: A was added to B and mixed uniformly with a Henschel mixer. The obtained powder was passed through a mesh and then cast into a metal plate using a mold to obtain a powder foundation.
Composition (%)
1. 1. Cetyl ethylcaproate 3.0
2. Neopentyl glycol dicaprate 3.0
3. 3. Di lauroyl glutamate (phytosteryl / octyldodecyl)
1.0
4. Silicone-treated fine particle titanium oxide (Note 18) 10.0
5. Silicone treated fine particles Zinc oxide 8.0
6. Alkyl-modified silicone composite particles (carbon number of alkyl-modified group: 10)
1.0
7. Phenyl-modified silicone composite particles (Note 4) 2.0
8. N-lauroyl-L-lysine 3.0
9. Synthetic phlogopite 10.0
10. Silicone treated talc (Note 18) Remaining 11. Silicone treated titanium oxide (Note 18) 4.0
12. Silicone-treated red iron oxide (Note 18) Appropriate amount 13. Silicone-treated iron oxide (Note 18) Appropriate amount
14. Silicone treated black iron oxide (Note 18) Appropriate amount
Total 100.0
(Note 4) KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.): Average particle size 5 μm
(Note 18) KF-9901 treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
The obtained powder foundation was smooth, had excellent adhesion, and had good makeup retention.

[Example 6]
Powder eye shadow <Preparation of cosmetics>
A: Ingredients 1 to 3 were uniformly mixed.
B: Ingredients 4 to 16 were uniformly mixed.
C: A was added to B and mixed uniformly with a Henschel mixer. The obtained powder was passed through a mesh and then cast into a metal plate using a mold to obtain a powder eye shadow.
Composition (%)
1. 1. Diphenylsiloxyphenyltrimethicone 4.0
2. Isotridecyl isononanoate 2.0
3. 3. Silicone wax (Note 19) 1.0
4. Metal soap 2.0
5. Silicone treated synthetic phlogopite 15.0
6. Alkyl-modified silicone composite particles (carbon number of alkyl-modified group: 6)
3.0
7. Silicone treated pearl pigment 10.0
8. Boron Nitride 3.0
9. Barium sulphate 5.0
10. Red No. 201 Appropriate amount 11. Yellow No. 4 Al Rake Appropriate amount 12. Silicone treated mica (Note 20) Remaining amount 13. Silicone treated titanium oxide (Note 20) 5.0
14. Silicone-treated red iron oxide (Note 20) Appropriate amount 15. Silicone-treated iron oxide (Note 20) Appropriate amount
16. Silicone treated black iron oxide (Note 20) Appropriate amount
Total 100.0
(Note 19) KP-561P (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 20) KF-9909 treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
The obtained powder eyeshadow was smooth, had good color development, had excellent adhesion, and had good makeup retention.

[Example 7]
Powder cheek <preparation of cosmetics>
A: Ingredients 1 to 4 were uniformly mixed.
B: Ingredients 5 to 16 were uniformly mixed.
C: A was added to B and mixed uniformly with a Henschel mixer. The obtained powder was passed through a mesh and then cast into a metal plate using a mold to obtain powder cheek.
Composition (%)
1. 1. Dimethylpolysiloxane (6cs) 3.0
2. Triethylhexanoin 2.0
3. 3. Diisostearyl malate 1.5
4. Branched polyoxyethylene-alkyl covariant organopolysiloxane (Note 21) 1.0
5. Metal soap 1.5
6. Silicone treated synthetic phlogopite 10.0
7. Alkyl-modified silicone composite particles (carbon number of alkyl-modified group: 18)
9.0
8. Phenyl-modified silicone composite particles 2.0
9. Pearl pigment 3.0
10. Red No. 202 Appropriate amount 11. Yellow No. 4 Al Rake Appropriate amount 12. Silicone treated talc (Note 22) Remaining 13. Acrylic Silicone Treated Titanium Oxide (Note 22) 3.0
14. Acrylic Silicone Treated Red Iron Oxide (Note 22) Appropriate amount 15. Acrylic Silicone Treated Yellow Iron Oxide (Note 22) Appropriate amount
16. Acrylic silicone treated black iron oxide (Note 22) Appropriate amount
Total 100.0
(Note 21) KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 22) KP-574 treatment (manufactured by Shin-Etsu Chemical Co., Ltd.)
The obtained powder cheek was smooth, had good color development, had excellent adhesion, and had good makeup retention.

Claims

A solid powder cosmetic containing composite particles containing particles made of an alkyl-modified silicone elastomer having an alkyl group having 6 to 22 carbon atoms bonded to a silicon atom and a silicone resin coating the surface thereof.
The solid powder cosmetic according to claim 1, wherein the composite particles are polysilicone-22 (cosmetic display name).
The solid powder cosmetic according to claim 1 or 2, wherein the amount of the composite particles blended is 1 to 20% by mass of the total cosmetic.
The solid powder cosmetic according to any one of claims 1 to 3, wherein the hardness measured by the Asker rubber hardness tester JAL8 type after press molding is 1 to 30.