Powder cosmetic and production method for same

Abstract

Provided is a powder cosmetic that improves overall usability and also improves formability and impact resistance as a solid powder cosmetic.　According to the present invention, a powder cosmetic that includes 80–99 mass% of a powder component and 1–20 mass% of an oil component includes, as the powder component, at least one of component (A), component (B), and component (C). Component (A): hollow silica particles that have an average particle size of 1–10 μm. Component (B): solid silica particles that have an average particle size of 2–7 μm. Component (C): porous silica particles that have an average particle size of 1–30 μm.

Description

Powder cosmetics and their manufacturing method

[0001] The present invention relates to a powder cosmetic and a method for producing the same.

[0002] In recent years, various powder cosmetics have been developed, such as powdery foundation, eye shadow, face powder, blush, etc. Furthermore, such powder cosmetics often contain particles such as silica.

[0003] More specifically, for example, Patent Document 1 discloses a solid powder cosmetic that contains 1 to 20% by mass of an oily component and hollow nanoparticles made of a silica shell, with the aim of providing a solid powder cosmetic that maintains good usability as a cosmetic while also having excellent resistance to impact when dropped.

[0004] Furthermore, Patent Document 2 discloses a cosmetic preparation containing specified silica-based particles in a range of 0.1 to 30% by weight, and the silica particles disclosed in Patent Document 2 are characterized in that they have an average particle diameter in a range of 0.1 to 200 μm, have a cavity inside an outer silica shell layer, the porosity of the cavity is in a range of 20 to 95% by weight, the outer silica shell layer is non-porous, and the inside of the cavity is under negative pressure.

[0005] JP 2013-129622 A JP 2011-256098 A

[0006] However, conventional powder cosmetics containing silica particles are still not satisfactory in terms of overall usability (i.e., usability resulting from the overall tactile sensation of being dry and smooth, and not powdery), as well as moldability and impact resistance when made into solid powder cosmetics, and there is room for further improvement.

[0007] Therefore, the present invention seeks to improve the above-mentioned circumstances, and its object is to provide a powder cosmetic that has improved overall usability, as well as improved moldability and impact resistance when made into a solid powder cosmetic.

[0008] The present invention that achieves the above object is as follows.

[0009] <Aspect 1> A powder cosmetic comprising 80 to 99% by mass of a powder component and 1.0 to 20% by mass of an oil component, wherein the powder component comprises the following component (A) and at least one of the following components (B) and (C): Component (A): hollow silica particles having an average particle size of 1 to 10 μm, Component (B): solid silica particles having an average particle size of 2 to 7 μm, Component (C): porous silica particles having an average particle size of 1 to 30 μm. <Aspect 2> The cosmetic according to Aspect 1, wherein the powder component comprises component (A), component (B), and component (C). <Aspect 3> The cosmetic according to Aspect 1 or 2, which is a solid powder cosmetic. Aspect 4 is a method for producing the cosmetic according to any one of Aspects 1 to 3, comprising: dispersing the powder component and the oil component in a solvent to prepare a slurry, filling the slurry into a container, and removing the solvent from the slurry after filling into the container. Aspect 5 is a method for producing the cosmetic according to any one of Aspects 1 to 3, comprising: dispersing the powder component and the oil component in a solvent to prepare a slurry, and drying the slurry to obtain a dry powder.

[0010] According to the present invention, it is possible to provide a powder cosmetic that has improved overall usability, and that has improved moldability and impact resistance when made into a solid powder cosmetic.

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the preferred embodiments. However, the present invention is not limited to the following embodiments, and various modifications can be made within the scope of the present invention.

[0012] <<Powder Cosmetic>> The powder cosmetic of the present invention (hereinafter also referred to as "the cosmetic of the present invention") is a powder cosmetic comprising 80 to 99% by mass of a powder component and 1 to 20% by mass of an oily component, and comprises the following component (A) and at least one of the following components (B) and (C) as the powder components: Component (A): hollow silica particles having an average particle size of 1 to 10 μm, Component (B): solid silica particles having an average particle size of 2 to 7 μm, Component (C): porous silica particles having an average particle size of 1 to 30 μm.

[0013] <Powder Component> The cosmetic of the present invention contains a powder component. The content of the powder component in the cosmetic of the present invention may be 80% by mass or more, 85% by mass or more, 90% by mass or more, or 95% by mass or more, or may be 99% by mass or less, based on the total amount of the cosmetic.

[0014] Through extensive research, the present inventors have found that the effects of the present invention can be achieved by using two or more types of specific silica particles in combination as the powder component, and further that the effects of the present invention can be further enhanced by using three or more types of specific silica particles in combination.

[0015] More specifically, in the present invention, the cosmetic of the present invention contains, as powder components, the following component (A) and at least one of the following components (B) and (C), and from the viewpoint of further exerting the effects of the present invention, it is preferable that the cosmetic of the present invention contains the following components (A), (B), and (C): Component (A): hollow silica particles having an average particle size of 1 to 10 μm, Component (B): solid silica particles having an average particle size of 2 to 7 μm, Component (C): porous silica particles having an average particle size of 1 to 30 μm.

[0016] (Component (A)) In the present invention, component (A) refers to hollow silica particles having an average particle size of 1 to 10 μm. Such hollow silica particles are particularly effective in imparting a light and smooth feel to powder cosmetics. In the present invention, hollow silica particles refer to silica particles having a silica shell and a hollow core.

[0017] The shape of the hollow silica particles is not particularly limited as long as they are hollow particles, and may be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-shaped, or a combination thereof. Among these, spherical shapes are preferred, because their shape allows them to roll on the skin when applied, thereby improving the light feel of the particles.

[0018] In the present invention, the hollow silica particles as component (A) may have an average particle size of 1 μm or more, 2 μm or more, 3 μm or more, or 4 μm or more, and may have an average particle size of 10 μm or less, 8 μm or less, 6 μm or less, or 4 μm or less.

[0019] In the present invention, the average particle size of the silica particles can be determined as an average particle size converted into volume by a measurement method using a laser light scattering method.

[0020] In the present invention, the porosity of the hollow silica particles is not particularly limited, but may be, for example, 20% or more, 30% or more, 50% or more, or 80% or more, and may be 95% or less, or 90% or less.

[0021] In the present invention, the oil absorption of the hollow silica particles is not particularly limited, and may be, for example, 10 ml / 100 g or more, 30 ml / 100 g or more, or 50 ml / 100 g or more, and may be 100 ml / 100 g or less, or 80 ml / 100 g or less.

[0022] In the present invention, the oil absorption of silica particles is determined by kneading the particles with a metal spatula while adding a certain amount of squalane (oil) dropwise, and the end point is the point at which it is visually confirmed that the silica particles have all become one and the continuous phase has become oil, and the amount of oil added at this point is defined as the oil absorption.

[0023] In the present invention, the hollow silica particles may be surface-treated or may not be surface-treated, for example, with an amino acid, a silicone, or a metal soap.

[0024] The content of component (A) in the cosmetic of the present invention may be, for example, 3.0% by mass or more, 4.0% by mass or more, 5.0% by mass or more, 6.0% by mass or more, or 7.0% by mass or more, relative to the total amount of the cosmetic, and may be 20% by mass or less, 15% by mass or less, 10% by mass or less, 8.0% by mass or less, or 6.0% by mass or less.

[0025] (Component (B)) In the present invention, component (B) refers to solid silica particles having an average particle size of 2 to 7 μm. Such solid silica particles, in particular, have the effect of imparting a soft feel to the powder cosmetic together with an oily component. In the present invention, solid silica particles refer to silica particles that do not have any internal cavities.

[0026] The shape of the solid silica particles is not particularly limited as long as they have no internal cavities, and may be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-shaped, or a combination thereof. Among these, spherical shapes are preferred from the viewpoint of ease of use derived from the shape, for example, during application.

[0027] In the present invention, the solid silica particles as component (B) may have an average particle size of 2 μm or more, 4 μm or more, or 6 μm or more, and may be 10 μm or less, 8 μm or less, or 6 μm or less.

[0028] In the present invention, the oil absorption of the solid silica particles is not particularly limited, but may be, for example, 10 ml / 100 g or more, 15 ml / 100 g or more, or 20 ml / 100 g or more, and may be 50 ml / 100 g or less, or 30 ml / 100 g or less.

[0029] In the present invention, the solid silica particles may be surface-treated or may not be surface-treated. Examples of surface treatments for hollow silica particles include, but are not limited to, amino acid treatment, silicone treatment, and metal soap treatment.

[0030] When component (B) is contained in the cosmetic of the present invention, the content thereof may be, for example, 2.0% by mass or more, 3.0% by mass or more, 4.0% by mass or more, or 5.0% by mass or more, relative to the total amount of the cosmetic, and may be 10% by mass or less, 8.0% by mass or less, or 5.0% by mass or less.

[0031] (Component (C)) In the present invention, component (C) refers to porous silica particles having an average particle size of 1 to 30 μm. Such porous silica has a relatively high sebum absorption effect, and is therefore effective in imparting a particularly smooth feel to powder cosmetics. In the present invention, porous silica particles refer to particles having minute pores on the surface.

[0032] The shape of the porous silica particles is not particularly limited as long as they are porous, and may be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-shaped, or a combination thereof. Among these, spherical shapes are preferred, for example, from the viewpoint of being less likely to aggregate.

[0033] In the present invention, the porous silica particles as component (C) may have an average particle size of 1 μm or more, 3 μm or more, 5 μm or more, or 8 μm or more, and may have an average particle size of 30 μm or less, 20 μm or less, or 10 μm or less.

[0034] In the present invention, the oil absorption of the porous silica particles is not particularly limited, but may be, for example, 50 ml / 100 g or more.

[0035] In the present invention, the porous silica particles may be surface-treated or may not be surface-treated, for example, with an amino acid, a silicone, or a metal soap.

[0036] When component (C) is contained in the cosmetic of the present invention, the content thereof may be, for example, 2.0% by mass or more, 3.0% by mass or more, or 4.0% by mass or more, and 10% by mass or less, 8.0% by mass or less, or 6.0% by mass or less, relative to the total amount of the cosmetic.

[0037] (Relationship between the contents of component (A), component (B), and component (C))

[0038] In the cosmetic preparation of the present invention, when component (A) and component (B) are used in combination, their respective contents may be the same or different, but the content of component (A) may be greater than the content of component (B). In addition, when component (A) and component (C) are used in combination in the cosmetic preparation of the present invention, their respective contents may be the same or different, but the content of component (A) may be greater than the content of component (C). Furthermore, in the cosmetic preparation of the present invention, when component (A), component (B), and component (C) are used in combination, their respective contents may be the same or different, but the content of component (A) may be the highest, the content of component (C) may be intermediate, and the content of component (B) may be the lowest among the three. More specifically, when component (A), component (B), and component (C) are used in combination, the ratio of the content of component (A):the content of component (B):the content of component (C) may be, for example, 1.0:0.1-2.0:0.1-2.0, 1.0:0.2-1.5:0.2-1.5, 1.0:0.2-1.0:0.2-1.0, or 1.0:0.3-0.8:0.3-0.9.

[0039] (Other Powder Components) The cosmetic of the present invention may further contain one or more other powder components as powder components in addition to the above-mentioned components (A), (B), and (C). Furthermore, when other powder components are contained, the content thereof can be adjusted appropriately depending on the function or effect thereof or the intended use of the cosmetic.

[0040] Other powder components include, for example, mica, talc, kaolin, sericite (sericite), muscovite, phlogopite, synthetic mica, synthetic fluorphlogopite, lepidolite, biotite, calcined talc, calcined sericite, calcined muscovite, calcined phlogopite, boron nitride, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soap (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), photochromic titanium oxide (titanium dioxide sintered with iron oxide), reduced zinc oxide; organic powder ( For example, silicone elastomer powder, silicone powder, silicone resin-coated silicone elastomer powder, polyamide resin powder (nylon powder), polyethylene powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.; inorganic white pigments (for example, titanium dioxide, zinc oxide, etc.); inorganic red pigments (for example, iron oxide (red iron oxide), iron titanate, etc.); inorganic brown pigments (for example, γ-iron oxide, etc.); inorganic yellow pigments (for example, yellow iron oxide, ochre, etc.); inorganic black pigments (for example, black iron oxide, low-order titanium oxide, etc.); inorganic purple pigments (for example, mango violet, cobalt violet, etc.); inorganic green pigments (for example, chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (for example, ultramarine, Prussian blue, etc.);Pearl pigments (for example, bismuth oxychloride, fish scale foil, mica titanium, iron oxide-coated mica titanium, low-order titanium oxide-coated mica titanium, photochromic mica titanium, those using talc, glass, synthetic fluorine phlogopite, silica, bismuth oxychloride, etc. instead of mica as a substrate, those coated with low-order titanium oxide, colored titanium oxide, iron oxide, alumina, silica, zirconia, zinc oxide, cobalt oxide, aluminum, etc. in addition to titanium oxide as a coating, functional pearl pigments such as those coated with resin particles (JP 11-92688), those coated with aluminum hydroxide particles (JP 2002-146238), those coated with zinc oxide particles (JP 2003-261421), and those coated with Those coated with barium sulfate particles (JP 2003-61229 A), etc.); metal powder pigments (e.g., aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium, or aluminum lake (e.g., organic pigments such as Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, and Blue No. 1, etc.); natural pigments (e.g., chlorophyll, β-carotene, etc.);

[0041] Furthermore, these other powder components may be subjected to a surface treatment of the powder with higher fatty acids, metal soaps, fats and oils, waxes, silicone compounds, fluorine compounds, hydrocarbons, surfactants, dextrin fatty acid esters, etc., as necessary.

[0042] As described above, the cosmetic of the present invention can improve overall usability by including the above-mentioned component (A) and at least one of the above-mentioned components (B) and (C), and therefore does not need to substantially include a resin powder that has been previously reported as being blended for the purpose of imparting a soft feel. Furthermore, when the cosmetic of the present invention includes such a resin powder as a powder component, the content thereof may be 5.0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, 2.0% by mass or less, 1.0% by mass or less, 0.5% by mass or less, or 0.1% by mass or less, relative to the total amount of the cosmetic.

[0043] <Oily Component> The cosmetic of the present invention contains an oily component. The content of the oily component in the cosmetic of the present invention may be 1.0 mass% or more, 5.0 mass% or more, or 10 mass% or more, and 20 mass% or less, or 15 mass% or less, relative to the total amount of the cosmetic.

[0044] The oily component is not particularly limited as long as it can be used in general cosmetics, for example. More specifically, examples include liquid oils and fats, solid oils and fats, waxes, hydrocarbons, higher fatty acids, higher alcohols, synthetic ester oils, silicone oils, etc., but are not limited to these. In the present invention, the term "oily component" includes oils and components soluble in oils.

[0045] In the following description, POE is an abbreviation for polyoxyethylene, and POP is an abbreviation for polyoxypropylene, and the number in parentheses after POE or POP indicates the average number of moles of POE or POP groups added in the compound.

[0046] Examples of liquid oils and fats include, but are not limited to, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, camellia oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, Japanese kaya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, and triglycerin.

[0047] Examples of solid fats and oils include, but are not limited to, cocoa butter, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan wax kernel oil, hardened oil, beef foot fat, Japan wax, and hardened castor oil.

[0048] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivory wax, spermaceti wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, and the like, but are not limited to these.

[0049] Examples of hydrocarbon oils include, but are not limited to, liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0050] Examples of higher fatty acids include, but are not limited to, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

[0051] Examples of higher alcohols include, but are not limited to, straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.); branched-chain alcohols (e.g., monostearyl glycerin ether (batyl alcohol), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.); and the like.

[0052] Examples of synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid esters, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, tri-2 -Glyceryl ethylhexanoate, glyceryl trioctanoate, glyceryl triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleyl oleate, acetoglyceride, 2-heptylundecyl palmitate, azide Examples of the alkyl acrylate include, but are not limited to, diisobutyl sebacate, N-lauroyl-L-glutamic acid 2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, and triethyl citrate.

[0053] Examples of silicone oils include silicone compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, stearoxymethylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl-polyoxyalkylene-co-modified organopolysiloxane, alkyl-modified organopolysiloxane, unterminally modified organopolysiloxane, fluorine-modified organopolysiloxane, amino-modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicate, and silicone RTV rubber, but are not limited to these.

[0054] <Other Components> The cosmetic composition of the present invention can be formulated with other components, such as esters, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, moisturizers, water-soluble polymers, thickeners, film-forming agents, ultraviolet absorbers, sequestering agents, lower alcohols, polyhydric alcohols, sugars, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, fragrances, and water, as needed, within the scope of not impairing the effects of the present invention, and can be produced by conventional methods according to the desired dosage form.

[0055] Specific ingredients that can be blended are listed below, but powder cosmetics can be prepared by blending the above essential ingredients with any one or more of the following ingredients.

[0056] Examples of anionic surfactants include fatty acid soaps (e.g., sodium laurate, sodium palmitate, etc.); higher alkyl sulfates (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfates (e.g., POE-lauryl triethanolamine sulfate, POE-lauryl sodium sulfate, etc.); N-acyl sarcosinates (e.g., sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl-N-methyl taurate, sodium coconut oil fatty acid methyl tauride, sodium lauryl methyl tauride, etc.); phosphate salts (sodium POE-oleyl ether phosphate, POE-stearyl ether phosphate, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol ... alkylbenzenesulfonates (e.g., sodium linear dodecylbenzenesulfonate, triethanolamine linear dodecylbenzenesulfonate, linear dodecylbenzenesulfonic acid, etc.); higher fatty acid ester sulfate salts (e.g., sodium hydrogenated coconut oil fatty acid glycerin sulfate, etc.); N-acylglutamates (e.g., monosodium N-lauroylglutamate, disodium N-stearoylglutamate, monosodium N-myristoyl-L-glutamate, etc.); sulfated oils (e.g., turmeric oil, etc.); POE-alkyl ether carboxylic acids; POE-alkyl allyl ether carboxylate salts; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfate salts; higher fatty acid alkylolamide sulfate salts; sodium lauroylmonoethanolamide succinate; ditriethanolamine N-palmitoyl aspartate; sodium caseinate, etc., but are not limited to these.

[0057] Examples of cationic surfactants include, but are not limited to, alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (e.g., cetylpyridinium chloride, etc.); distearyldimethylammonium chloride dialkyldimethylammonium salts; poly(N,N'-dimethyl-3,5-methylenepiperidinium) chloride; alkyl quaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmorphonium salts; POE-alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; and benzethonium chloride.

[0058] Examples of amphoteric surfactants include, but are not limited to, imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.); betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amido betaine, sulfobetaine, etc.).

[0059] Examples of lipophilic nonionic surfactants include, but are not limited to, sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, etc.); glycerin polyglycerin fatty acids (e.g., glycerin monocottonseed oil fatty acid, glycerin monoerucate, glycerin sesquioleate, glycerin monostearate, glycerin α,α'-oleic acid pyroglutamate, glycerin monostearate malate, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.); hydrogenated castor oil derivatives; and glycerin alkyl ethers.

[0060] Examples of hydrophilic nonionic surfactants include POE-sorbitan fatty acid esters (e.g., POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.); POE-sorbitol fatty acid esters (e.g., POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE-sorbitol monostearate, etc.); POE-glycerin fatty acid esters (e.g., POE-glycerin monostearate, POE-monooleates such as POE-glycerin monoisostearate, POE-glycerin triisostearate, etc.); POE-fatty acid esters (for example, POE-distearate, POE-monodioleate, ethylene glycol distearate, etc.); POE-alkyl ethers (for example, POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Pluronic types (for example, Pluronic, etc.); POE·POP-alkyl ethers (e.g., POE·POP-cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP-monobutyl ether, POE·POP-hydrogenated lanolin, POE·POP-glycerin ether, etc.); tetraPOE·tetraPOP-ethylenediamine condensates (e.g., Tetronic, etc.); POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil Examples of fatty acid esters include, but are not limited to, monopyroglutamic acid monoisostearate diester, POE-hydrogenated castor oil maleic acid, etc.; POE-beeswax / lanolin derivatives (e.g., POE-sorbitol beeswax, etc.); alkanolamides (e.g., coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE-propylene glycol fatty acid esters; POE-alkylamines; POE-fatty acid amides; sucrose fatty acid esters; alkylethoxydimethylamine oxide; trioleyl phosphate, etc.

[0061] Examples of moisturizing agents include, but are not limited to, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, alkylene oxide derivatives, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa illustrator extract, Achillea millefolium extract, and Melilot extract.

[0062] Examples of natural water-soluble polymers include, but are not limited to, plant-derived polymers (e.g., gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (marmara), algae colloid (cassow extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial-derived polymers (e.g., xanthan gum, dextran, succinoglucan, pullulan, etc.); and animal-derived polymers (e.g., collagen, casein, albumin, gelatin, etc.).

[0063] Examples of semi-synthetic water-soluble polymers include, but are not limited to, starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); and alginic acid-based polymers (e.g., sodium alginate, propylene glycol alginate, etc.).

[0064] Examples of synthetic water-soluble polymers include, but are not limited to, vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymers, etc.); polyoxyethylene polymers (e.g., polyoxyethylene-polyoxypropylene copolymers of polyethylene glycol 20,000, 40,000, 60,0000, etc.); acrylic polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimine; cationic polymers, etc.

[0065] Examples of thickeners include, but are not limited to, gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed (marmelo), casein, dextrin, gelatin, sodium pectinate, sodium allaginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropylcellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, magnesium silicate A1 (veegum), laponite, and anhydrous silicic acid.

[0066] Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers (e.g., para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, N,N-dimethyl PABA ethyl ester, etc.); anthranilic acid-based ultraviolet absorbers (e.g., homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, etc.); salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, etc.); cinnamic acid-based ultraviolet absorbers (e.g., octyl methoxycinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p-methoxycinnamate, octyl-p-meth cyclohexyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono-2-ethylhexanoyl-di-para-methoxycinnamate, etc.); benzophenone-based ultraviolet absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'- dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.);Examples of suitable benzotriazoles include, but are not limited to, 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole; dibenzalazine; dianisoylmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, dimorpholinopyridazino; 2-ethylhexyl-2-cyano-3,3-diphenylacrylate; 2,4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-(1,3,5)-triazine, and the like.

[0067] Examples of sequestering agents include, but are not limited to, 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, edetate tetrasodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and ethylenediaminehydroxyethyltriacetate trisodium salt.

[0068] Examples of lower alcohols include, but are not limited to, ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

[0069] Examples of polyhydric alcohols include dihydric alcohols (e.g., ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.); trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.); tetrahydric alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol, etc.); pentahydric alcohols (e.g., xylitol, etc.); hexahydric alcohols (e.g., sorbitol, mannitol, etc.); polyhydric alcohol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); dihydric alcohol alkyl ethers (e.g., ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.);Dihydric alcohol alkyl ethers (e.g., diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc.); dihydric alcohol ether esters (e.g., ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diadipate, ethylene glycol disuccinate, glycerin monoalkyl ethers (e.g., xyl alcohol, selachyl alcohol, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, etc.); Examples of suitable glycerides include, but are not limited to, glycerol, sucrose, erythritol, glucose, fructose, starch-degraded sugars, maltose, xylitose, starch-degraded sugar-reduced alcohols, etc.; glysolid; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP·POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate; POP·POE-pentaneerythritol ether, polyglycerin, etc.;

[0070] Examples of monosaccharides include trioses (e.g., D-glyceryl aldehyde, dihydroxyacetone, etc.); tetraoses (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.); pentoses (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.); hexoses (e.g., D-glucose, D-talose, D-busicose, D-galactose, D-fructose, L-galactose, L-mannose, etc.); , D-tagatose, etc.); heptoses (e.g., aldoheptose, heptose, etc.); octose (e.g., octulose, etc.); deoxysugars (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.); aminosugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.); uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.), but are not limited to these.

[0071] Examples of oligosaccharides include, but are not limited to, sucrose, gunthianose, umbelliferose, lactose, planteose, isolychnoses, α,α-trehalose, raffinose, lychnoses, umbilicin, stachyose, verbascoses, and the like.

[0072] Examples of polysaccharides include, but are not limited to, cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucoitin sulfate, guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, and caronic acid.

[0073] Examples of amino acids include neutral amino acids (e.g., threonine, cysteine, etc.) and basic amino acids (e.g., hydroxylysine, etc.). Examples of amino acid derivatives include, but are not limited to, sodium acyl sarcosine (sodium lauroyl sarcosine), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc.

[0074] Examples of organic amines include, but are not limited to, monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol.

[0075] Examples of polymer emulsions include, but are not limited to, acrylic resin emulsion, polyethyl acrylate emulsion, acrylic resin liquid, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, and natural rubber latex.

[0076] Examples of pH adjusters include, but are not limited to, buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.

[0077] Examples of vitamins include, but are not limited to, vitamins A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin, etc.

[0078] Examples of antioxidants include, but are not limited to, tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters.

[0079] Examples of antioxidant aids include, but are not limited to, phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid, and the like.

[0080] Other ingredients that can be added include, for example, preservatives (ethylparaben, butylparaben, chlorphenesin, phenoxyethanol, etc.); anti-inflammatory agents (for example, glycyrrhizinic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); various extracts (for example, Phellodendron bark, Coptis chinensis, Lithospermum root, Peony, Swertia japonica, Birch, sage, Loquat, Carrot, Aloe, Mallow, Iris, Grape, Job's tears, Luffa, Lily, Saffron, Cnidium rhizome, Angelica acutiloba, Hypericum perforatum, Ononis, Garlic, Chili pepper, Citrus fruit, Angelica acutiloba, Seaweed, etc. ), activators (e.g., royal jelly, photosensitizers, cholesterol derivatives, etc.); blood circulation promoters (e.g., nonylic acid valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); antiseborrheic agents (e.g., sulfur, thianthol, etc.); and anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.), but are not limited to these.

[0081] Furthermore, sequestering agents such as disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, and malic acid, caffeine, tannin, verapamil, tranexamic acid and derivatives thereof, various herbal extracts such as licorice, Chinese quince, and Chinese prickly pear, drugs such as tocopherol acetate, glycyrrhesic acid, glycyrrhizic acid and derivatives thereof or salts thereof, whitening agents such as vitamin C, magnesium ascorbyl phosphate, ascorbic acid glucoside, arbutin, and kojic acid, amino acids such as arginine and lysine and derivatives thereof, and sugars such as fructose, mannose, erythritol, trehalose, and xylitol may also be appropriately blended.

[0082] <Product Form of Cosmetic> The product form of the cosmetic of the present invention is not particularly limited, and can be any product form within the category of powder cosmetics. More specifically, product forms include, but are not limited to, powder foundation, eye shadow, blush, body powder, perfume powder, baby powder, pressed powder, deodorant powder, face powder, loose powder, etc.

[0083] Furthermore, from the viewpoint of improving moldability and impact resistance, the cosmetic of the present invention is particularly applicable to solid powder cosmetics such as powder foundation, eye shadow, blush color, and pressed powder.

[0084] <<Method for Producing Powder Cosmetic>> The cosmetic of the present invention described above can be produced by the method for producing a powder cosmetic that will be described below.

[0085] (First Method for Producing the Cosmetic of the Present Invention) In the present invention, this first method is a method comprising: dispersing the powder component and oil component described above in a solvent to prepare a slurry; filling the slurry into a container; and removing the volatile solvent from the slurry after filling into the container.

[0086] Here, the solvent may be a volatile solvent or a non-volatile solvent. The volatile solvent may be, for example, a solution in which water, as the primary dispersion medium, is blended with 0 to 30 mass% of a water-soluble volatile organic solvent, such as ethyl alcohol, acetone, or isopropyl alcohol, as a secondary dispersion medium. From the viewpoint of improving moldability and impact resistance, it is preferable to adjust the blending amount of the secondary dispersion medium so that the contact angle of the volatile dispersion medium with a homogeneous mixture of all cosmetic ingredients is 125 to 135°. Examples of non-volatile solvents include, but are not limited to, non-volatile silicone-based solvents.

[0087] Furthermore, examples of methods for preparing a slurry include a method in which the powder component and oil component are dry-mixed / disintegrated in advance using a Henschel Mixer (registered trademark), a pulverizer, or the like, and then added to a dispersion solvent, followed by mixing / dispersion using a Disper Mixer, a homogenizer, a planetary mixer, a Combimix (registered trademark), an Aji Homo Mixer, a twin-screw kneader, etc. Note that when the oil component contains an oil that becomes solid or pasty at 25°C, it is preferable to heat-dissolve the oil component and then dry-mix it with the powder component.

[0088] Furthermore, when preparing the slurry, the ratio (mass ratio) of the powder component to the oil component may be powder component / oil component = 60 / 40 to 99.5 / 0.5, depending on the types of oil component and powder component used. The amount of dispersion solvent used cannot be specified because it depends on the polarity, specific gravity, etc. of the dispersion solvent used, but it is important to ensure sufficient fluidity during filling and molding, and it is common to use about half to twice the amount of the cosmetic constituents.

[0089] The slurry prepared as described above can be suitably filled into a container such as a metal or resin tray by injection filling or the like.

[0090] The powder cosmetic of the present invention can be obtained by removing the solvent from the slurry after filling the container.

[0091] Here, the method for removing the solvent may be, for example, suction press molding or the like, and may further include subsequent drying in a dryer as appropriate.

[0092] This first method may also be called the "wet method."

[0093] (Second Method for Producing the Cosmetic of the Present Invention) In the present invention, this second method is a method comprising: dispersing the above-mentioned powder component and oily component in a solvent to prepare a slurry; and drying the slurry to obtain a dry powder.

[0094] Here, the details of the method for preparing the slurry and the solvent may be the same as those in the above-mentioned "first method," and therefore will not be described here. In addition, the "slurry preparation step" and "volatile solvent" (particularly when the solvent is used as a volatile solvent) described in JP-A-2007-55990 may be appropriately adopted.

[0095] The prepared slurry can then be dried to obtain a dry powder.

[0096] Here, when drying the slurry, for example, a drying device may be used that breaks the slurry into fine droplets by mechanical shearing force and then blows dry gas onto the fine droplets to dry the slurry. This drying device may also include a hollow housing, a shearing means that shears the slurry into fine droplets using a shearing member provided within the housing, a supplying means that supplies the slurry to the shearing member within the housing, a blowing means that blows dry gas into the housing and supplies and contacts the dry gas with the slurry that has been broken into fine droplets by the shearing means, and a collecting means that collects the dry powder produced by drying the slurry. For details on drying the slurry and the drying device used, see, for example, JP 2007-55990 A.

[0097] The second method of the present invention may further include filling the obtained dry powder into a container and solidifying it by dry molding.

[0098] This second method may also be called the "W&D method."

[0099] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these. Unless otherwise specified, the amount of each component is expressed in mass %.

[0100] Examples 1 to 3 and Comparative Examples 1 to 4 Production by W&D method: The powder components and oily components shown in the formulation in Table 1 below were mixed, and then mixed in ethyl alcohol using a disper mixer. The slurry viscosity was adjusted to about 4000 mPa s, and then the mixture was mixed and dispersed using a twin-screw kneader. This produced a powder slurry.

[0101] The obtained powder slurry was dried in the state of fine droplets using an agitation dryer (spin flash dryer, APV Nordic Anhyro) to obtain a dry powder.

[0102] The resulting dry powder was then filled into a resin container and dry-pressed using a known method to obtain the solid powder cosmetics of Examples 1 to 3 and Comparative Examples 1 to 4, respectively.

[0103] Example 4: Preparation by wet process: The powder components and oily components according to the formulation shown in Table 1 below were mixed using a Henschel mixer, and then pulverized using a pulverizer to obtain a uniform mixture. An equal amount of water (volatile dispersion medium) was added to the mixture, and the mixture was mixed using a disper mixer to obtain a slurry. The slurry was filled into a medium dish, and the solvent was removed by suction, followed by drying to obtain the solid powder cosmetic for Example 4.

[0104] <<Evaluation of Overall Usability>> The solid cosmetic powder preparations of each of the Examples and Comparative Examples obtained above were evaluated for overall usability upon application to the skin (soft feel, dry feel, powdery texture) based on the following criteria. The results are shown in Table 2.

[0105] (Soft texture) "A": The surface loosens moderately when rubbed with a sponge, and when applied it feels very light, moist, and soft; "B": The surface loosens moderately when rubbed with a sponge, and when applied it feels moist. "C": The surface does not loosen much when rubbed with a sponge, and when applied it feels dry; "D": The surface does not loosen much when rubbed with a sponge, and when applied it feels heavy and catches on the skin.

[0106] (Smooth feel) "A": It loosens moderately when scrubbing the surface with a sponge, has a moderate moist feeling when applied, and spreads very well on the skin; "B": It loosens moderately when scrubbing the surface with a sponge, and spreads well on the skin; "C": It does not loosen very easily when scrubbing the surface with a sponge, catches on when applied, and feels a little heavy; "D": It does not loosen very easily when scrubbing the surface with a sponge, catches on when applied, feels a little heavy, and does not spread well on the skin.

[0107] (Powderiness) "A": The powder breaks down just enough when rubbed with a sponge, spreads well when applied, fits well to the skin, and is quickly absorbed; "B": The powder breaks down just enough when rubbed with a sponge, fits well when applied, spreads well, and is quickly absorbed; "C": The powder does not break down much when rubbed with a sponge, and powder remains on the skin when applied, leaving a slightly dry feeling; "D": The powder does not break down much when rubbed with a sponge, and powder remains on the skin when applied, making it difficult to absorb into the skin, leaving a dry feeling.

[0108] <<Evaluation of Moldability>> The moldability of the solid cosmetic powder preparations of each of the Examples and Comparative Examples obtained above was evaluated. More specifically, the same resin inner plate was set in a mold, 10 g of the sample was added, and a pressure of 2.0 MPa was applied to mold the sample. The moldability of each sample was evaluated based on the following criteria. The results are shown in Table 2.

[0109] "A": By pressing at a certain pressure, it can be molded into a resin-like inner plate; "B": By pressing at a certain pressure, it can be molded into a resin-like inner plate, but it is brittle; "C": Even when pressed at a certain pressure, it does not harden and cannot be molded.

[0110] <<Evaluation of Impact Resistance>> The solid cosmetic powder preparations of each of the Examples and Comparative Examples obtained above were placed in a cosmetic compact container, and dropped onto a metal plate from a height of 30 cm with the cosmetic surface facing downwards. The number of times it could be dropped before breaking was counted. The impact resistance of each product was evaluated based on the following criteria. The results are shown in Table 2.

[0111] "A": If it breaks after 8 or more tries; "B": If it breaks after 6 or 7 tries; "C": If it breaks after 3 to 5 tries; "D": If it breaks within 2 tries (this also applies if it cannot be molded).

[0112]

[0113] As is clear from Table 2, the cosmetics of Examples 1 to 4 were found to have improved overall usability, moldability, and impact resistance compared to the cosmetics of Comparative Examples 1 to 4.

Claims

1. A powder cosmetic comprising 80 to 99% by mass of a powder component and 1.0 to 20% by mass of an oil component, A cosmetic comprising, as the powder component, the following component (A) and at least one of the following components (B) and (C): Component (A): hollow silica particles having an average particle size of 1 to 10 μm, Component (B): solid silica particles having an average particle size of 2 to 7 μm; Component (C): Porous silica particles having an average particle size of 1 to 30 μm.

2. The cosmetic preparation according to claim 1 , wherein the powder component comprises the component (A), the component (B), and the component (C).

3. The cosmetic according to claim 1 , which is a solid powder cosmetic.

4. A method for producing the cosmetic preparation according to any one of claims 1 to 3, comprising the steps of: Dispersing the powder component and the oil component in a solvent to prepare a slurry; filling the slurry into a container; and removing the solvent from the slurry after filling the vessel; Including, method.

5. A method for producing the cosmetic preparation according to any one of claims 1 to 3, comprising the steps of: Dispersing the powder component and the oil component in a solvent to prepare a slurry; drying the slurry to obtain a dry powder; Including, method.