Powdered cosmetic and method for manufacturing the same

Abstract

This invention provides a powder cosmetic that improves overall usability, as well as its formability and impact resistance when formulated as a solid powder cosmetic. The cosmetic comprises 80-99% by mass of a powder component and 1-20% by mass of an oil component. The powder component comprises component (A) and at least one selected from components (B) and (C). Component (A): hollow silica particles with an average particle size of 1-10 μm; component (B): solid silica particles with an average particle size of 2-7 μm; component (C): porous silica particles with an average particle size of 1-30 μm.

Description

Technical Field

[0001] This invention relates to powder cosmetics and their manufacturing methods. Background Technology

[0002] In recent years, various powder cosmetics, such as powder foundation, eyeshadow, powder puff, and blush, have been developed. Furthermore, these powder cosmetics often contain particles such as silica.

[0003] More specifically, for example, Patent Document 1 discloses a solid powder cosmetic that, with the aim of providing a solid powder cosmetic that maintains good usability as a cosmetic while also possessing excellent resistance to falling impact, is characterized by containing 1 to 20% by mass of an oily component and containing nano-hollow particles composed of a silica shell.

[0004] Furthermore, Patent Document 2 discloses a cosmetic material made by mixing specified silica-based particles in the range of 0.1 to 30% by weight. The silica particles involved in Patent Document 2 are characterized by having an average particle size in the range of 0.1 to 200 μm, having cavities inside the outer silica layer, having a porosity in the range of 20 to 95% by weight, having a non-porous outer silica layer, and having a negative pressure inside the cavities.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2013-129622

[0008] Patent Document 2: Japanese Patent Application Publication No. 2011-256098 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] However, conventional powder cosmetics containing silica particles are still not satisfactory in terms of overall usability (i.e., usability derived from a combination of dry, soft, and smooth textures without a powdery feel), as well as formability and impact resistance when made into solid powder cosmetics, and there is still room for further improvement.

[0011] Therefore, the present invention aims to improve the above situation and its object is to provide a powder cosmetic that improves overall usability, as well as the formability and impact resistance when made into a solid powder cosmetic.

[0012] Methods for solving problems

[0013] The present invention, which achieves the above objectives, is described below.

[0014] Option 1

[0015] A cosmetic material comprising 80-99% by mass of powder components and 1.0-20% by mass of oil components.

[0016] The powder composition includes component (A) and at least one selected from components (B) and (C).

[0017] Composition (A): Hollow silica particles with an average particle size of 1–10 μm.

[0018] Composition (B): Solid silica particles with an average particle size of 2–7 μm.

[0019] Composition (C): Porous silica particles with an average particle size of 1–30 μm.

[0020] Option 2

[0021] According to the cosmetic material of Scheme 1, the powder composition includes the above-mentioned component (A), component (B), and component (C).

[0022] Option 3

[0023] The cosmetic material described in Scheme 1 or 2 is a solid powder cosmetic material.

[0024] Option 4

[0025] A method for manufacturing the cosmetic material according to any one of schemes 1 to 3, comprising:

[0026] Disperse the above-mentioned powder components and the above-mentioned oily components in a solvent to prepare a slurry;

[0027] Fill the container with the above slurry; and

[0028] Remove the solvent from the slurry after it has been filled into the container.

[0029] Option 5

[0030] A method for manufacturing the cosmetic material according to any one of schemes 1 to 3, comprising:

[0031] Disperse the above-mentioned powder components and the above-mentioned oily components in a solvent to prepare a slurry;

[0032] The above slurry is dried to obtain a dry powder.

[0033] The effects of the invention

[0034] According to the present invention, it is possible to provide a powder cosmetic that improves overall usability, as well as improves formability and impact resistance when it is made into a solid powder cosmetic. Detailed Implementation

[0035] The embodiments of the present invention will now be described in detail. However, the present invention is not limited to the following embodiments and can be implemented in various ways within the scope of the spirit of the invention.

[0036] Powder Cosmetics

[0037] The powder cosmetic of the present invention (hereinafter also referred to as "the cosmetic of the present invention") is a powder cosmetic comprising 80-99% by mass of powder component and 1-20% by mass of oil component.

[0038] As a powder component, it comprises component (A) below, and at least one selected from component (B) and component (C) below.

[0039] Composition (A): Hollow silica particles with an average particle size of 1–10 μm.

[0040] Composition (B): Solid silica particles with an average particle size of 2–7 μm.

[0041] Composition (C): Porous silica particles with an average particle size of 1–30 μm.

[0042] 〈Powder ingredient〉

[0043] The cosmetic material of the present invention comprises a powder component. The content of the powder component in the cosmetic material of the present invention may be 80% or more by mass, 85% or more by mass, 90% or more by mass, or 95% or more by mass relative to the total amount of the cosmetic material, and may also be 99% or less by mass.

[0044] Through in-depth research, the inventors discovered that by combining two or more specific silica particles as powder components, the effects of the present invention can be achieved. Furthermore, by combining three or more specific silica particles, the effects of the present invention can be further enhanced.

[0045] More specifically, in this invention, the cosmetic material of this invention comprises the following ingredient (A) and at least one selected from the following ingredients (B) and ingredients (C) as a powder component. Furthermore, from the viewpoint of further maximizing the effects of this invention, it is preferable to include the following ingredients (A), the following ingredients (B), and the following ingredients (C).

[0046] Composition (A): Hollow silica particles with an average particle size of 1–10 μm.

[0047] Composition (B): Solid silica particles with an average particle size of 2–7 μm.

[0048] Composition (C): Porous silica particles with an average particle size of 1–30 μm.

[0049] (ingredient (A))

[0050] In this invention, component (A) refers to hollow silica particles with an average particle size of 1–10 μm. These hollow silica particles are particularly effective in providing powder cosmetics with a light and smooth feel. Furthermore, in this invention, hollow silica particles refer to silica particles with a silica outer shell and a hollow core.

[0051] The shape of the hollow silica particles is not particularly limited as long as they are hollow particles. They can be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-like, or combinations thereof. Among them, spherical is preferred because, depending on its shape, it can roll on the skin during application, thus particularly improving the light touch.

[0052] In this invention, the hollow silica particles used 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, or may be 10 μm or less, 8 μm or less, 6 μm or less, or 4 μm or less.

[0053] Furthermore, in this invention, the average particle size of the silica particles can be determined as the average particle size calculated by volume conversion using a laser light scattering method.

[0054] In this invention, the porosity of the hollow silica particles is not particularly limited. For example, it can be 20% or more, 30% or more, 50% or more, or 80% or more. In addition, it can be 95% or less, or 90% or less.

[0055] In this invention, the oil absorption capacity of the hollow silica particles is not particularly limited. For example, it can be more than 10ml / 100g, more than 30ml / 100g, or more than 50ml / 100g. Alternatively, it can be less than 100ml / 100g or less than 80ml / 100g.

[0056] In addition, in this invention, regarding the oil absorption of silica particles, a certain amount of squalane (oil) is added dropwise while kneading with a metal scraper. The point at which the silica particles are visually confirmed to be integrated as a whole and the continuous phase becomes oil is set as the endpoint, and the amount of oil added at this point is defined as the oil absorption.

[0057] In this invention, the hollow silica particles may or may not undergo surface treatment. Examples of surface treatments for the hollow silica particles include amino acid treatment, organosilicon treatment, or metal soap treatment, but are not limited to these.

[0058] The content of ingredient (A) in the cosmetic of the present invention may be, for example, 3.0% or more by mass, 4.0% or more by mass, 5.0% or more by mass, 6.0% or more by mass, or 7.0% or more by mass relative to the total amount of the cosmetic, or less than 20% by mass, less than 15% by mass, less than 10% by mass, less than 8.0% by mass, or less than 6.0% by mass.

[0059] (Ingredient (B))

[0060] In this invention, component (B) refers to solid silica particles with an average particle size of 2–7 μm. These solid silica particles, when used with oily components, particularly contribute to the soft texture of powder cosmetics. Furthermore, in this invention, solid silica particles refer to silica particles that do not have internal voids.

[0061] The shape of solid silica particles is not particularly limited as long as they do not have internal cavities. They can be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-like, or combinations thereof. Among these, spherical shapes are preferred, for example, from the viewpoint of good usability due to their shape during application.

[0062] In this invention, the solid silica particles used as component (B) may have an average particle size of 2 μm or more, 4 μm or more, or 6 μm or more, or may be 10 μm or less, 8 μm or less, or 6 μm or less.

[0063] In this invention, the oil absorption capacity of the solid silica particles is not particularly limited. For example, it can be more than 10ml / 100g, more than 15ml / 100g, or more than 20ml / 100g. Alternatively, it can be less than 50ml / 100g or less than 30ml / 100g.

[0064] In this invention, the solid silica particles may or may not undergo surface treatment. Examples of surface treatments for solid silica particles include amino acid treatment, organosilicon treatment, or metal soap treatment, but are not limited to these.

[0065] In the cosmetics of the present invention, when ingredient (B) is included, its content, for example, relative to the total amount of the cosmetics, can be 2.0% or more by mass, 3.0% or more by mass, 4.0% or more by mass, or 5.0% or more by mass, and can also be 10% or less by mass, 8.0% or less by mass, or 5.0% or less by mass.

[0066] (Ingredient (C))

[0067] In this invention, component (C) refers to porous silica particles with an average particle size of 1–30 μm. Such porous silica has a relatively high sebum absorption capacity, thus providing a particularly dry feel to powder cosmetics. Furthermore, in this invention, porous silica particles refer to particles with fine pores on their surface.

[0068] The shape of porous silica particles is not particularly limited as long as they are porous, and can be, for example, spherical, cubic, rugby ball-shaped, rod-shaped, spindle-shaped, columnar, tubular, sheet-like, or a combination thereof. Among these, spherical shape is preferred, for example, from the viewpoint of preventing aggregation.

[0069] In this invention, the porous silica particles that are component (C) can have an average particle size of 1 μm or more, 3 μm or more, 5 μm or more, or 8 μm or more. Alternatively, they can be 30 μm or less, 20 μm or less, or 10 μm or less.

[0070] In this invention, the oil absorption capacity of the porous silica particles is not particularly limited, for example, it can be 50ml / 100g or more.

[0071] In this invention, the porous silica particles may or may not undergo surface treatment. Examples of surface treatments for the porous silica particles include amino acid treatment, organosilicon treatment, or metal soap treatment, but are not limited to these.

[0072] In the cosmetics of the present invention, the content of ingredient (C) may be, for example, more than 2.0% by mass, more than 3.0% by mass, or more than 4.0% by mass relative to the total amount of the cosmetics, or less than 10% by mass, less than 8.0% by mass, or less than 6.0% by mass.

[0073] (The relationship between the contents of component (A), component (B), and component (C))

[0074] In the cosmetics of the present invention, when ingredients (A) and (B) are used in combination, their contents may be the same or different, but the content of ingredient (A) may be greater than the content of ingredient (B). Furthermore, in the cosmetics of the present invention, when ingredients (A) and (C) are used in combination, their contents may be the same or different, but the content of ingredient (A) may be greater than the content of ingredient (C). Further, in the cosmetics of the present invention, when ingredients (A), (B), and (C) are used in combination, their contents may be the same or different, but among the three, the content of ingredient (A) may be the highest, the content of ingredient (C) may be in the middle, and the content of ingredient (B) may be the lowest. More specifically, when using components (A), (B), and (C) in combination, the content of component (A): content of component (B): content of component (C) can 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.

[0075] (Other powder components)

[0076] In addition to the components (A), (B), and (C) described above, the cosmetic material of the present invention may further include one or more other powder components as powder components. Furthermore, the content of other powder components may be appropriately adjusted according to their function or effect, or the intended use of the cosmetic material.

[0077] Other powder components include, for example, mica, talc, kaolin, sericite, muscovite, phlogopite, synthetic mica, synthetic fluorophlogopite, red mica, 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, tungstate metal salts, magnesium, silicon dioxide, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soaps (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), and photochromic titanium dioxide. (Sintered titanium dioxide, iron oxide), reduced zinc oxide; organic powders (e.g., 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 (e.g., titanium dioxide, zinc oxide, etc.); inorganic red pigments (e.g., iron oxide (iron oxide red), iron titanate, etc.); inorganic brown pigments (e.g., γ-iron oxide, etc.); inorganic yellow pigments (e.g., iron oxide yellow). Inorganic pigments include: loess, etc.; inorganic black pigments (e.g., iron oxide black, low-valent titanium dioxide, etc.); inorganic purple pigments (e.g., manganese violet, cobalt violet, etc.); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine, navy blue, etc.); pearlescent pigments (e.g., bismuth oxychloride, fish scale foil, mica titanium, iron oxide coated mica titanium, low-valent titanium dioxide coated mica titanium, photochromic mica titanium, materials that use talc, glass, synthetic fluorophlogopite, silicon dioxide, bismuth oxychloride, etc. as substrates instead of mica, materials coated with low-valent titanium dioxide in addition to titanium dioxide, colored titanium dioxide, etc.). Substances such as iron oxide, aluminum oxide, silicon dioxide, zirconium oxide, zinc oxide, cobalt oxide, and aluminum as coatings; substances used as functional pearlescent pigments; substances coated with resin particles on the surface of pearlescent pigments (Japanese Patent Application Laid-Open No. 11-92688); substances coated with aluminum hydroxide particles on the surface of pearlescent pigments (Japanese Patent Application Laid-Open No. 2002-146238); substances coated with zinc oxide particles on the surface of pearlescent pigments (Japanese Patent Application Laid-Open No. 2003-261421); substances coated with barium sulfate particles on the surface of pearlescent pigments (Japanese Patent Application Laid-Open No. 2003-61229); and metallic powder pigments (e.g., aluminum powder, copper powder, etc.).Organic pigments such as zirconium, barium, or aluminum lakes (e.g., Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401, and Blue 404, etc.; Red 3, Red 104, Red 106, Red 227, Red 230, Red 401, Red 505, Orange 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3, and Blue 1, etc.); natural pigments (e.g., chlorophyll, β-carotene, etc.), but not limited to these.

[0078] In addition, these other powder components can be surface-treated as needed with powders containing high-grade fatty acids, metallic soaps, oils, waxes, organosilicon compounds, fluorine compounds, hydrocarbons, surfactants, dextrin fatty acid esters, etc.

[0079] Furthermore, as described above, the cosmetic of the present invention improves overall usability by including at least one of the above-described component (A), component (B), and component (C), and therefore substantially does not contain resin powders blended for the purpose of imparting a soft touch, as previously reported. Moreover, in the cosmetic of the present invention, the content of such resin powder as a powder component, relative to the total amount of the cosmetic, can 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.

[0080] 〈Oily ingredients〉

[0081] The cosmetic of the present invention contains an oily component. The content of the oily component in the cosmetic of the present invention, relative to the total amount of the cosmetic, may be 1.0% or more by mass, 5.0% or more by mass, or 10% or more by mass, furthermore, 20% or less by mass, or 15% or less by mass.

[0082] As an oily component, there is no particular limitation as long as it is a substance that can generally be used in cosmetics. More specifically, examples include liquid oils, solid oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, synthetic ester oils, silicone oils, etc., but it is not limited to these. In addition, in this invention, the term "oily component" refers to a substance that includes oil and components soluble in oil.

[0083] Additionally, in the following explanation, POE is short for polyethylene oxide, POP is short for polypropylene oxide, and the number in parentheses following POE or POP indicates the average number of POE or POP groups added to the compound.

[0084] Examples of liquid oils 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, peach kernel oil, wheat germ oil, camellia oil, castor oil, flaxseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, torreya nut oil, rice bran oil, white tung oil, Japanese tung oil, jojoba oil, wheat germ oil, and triglycerides.

[0085] Examples of solid fats 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, wood wax kernel oil, hardened oil, beef foot fat, wood wax, and hardened castor oil.

[0086] Examples of waxes include, but are not limited to, beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, insect wax, whale wax, lignite wax, rice bran wax, lanolin, kapok wax, acetylated lanolin, liquid lanolin, sugarcane wax, isopropyl lanolin fatty acid, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, purpuric resin wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol ester, and POE hydrogenated lanolin alcohol ether.

[0087] Examples of hydrocarbon oils include, but are not limited to, liquid paraffin, ceresin, squalane, pterostilbene, paraffin, pure ceresin, squalene, petrolatum, and microcrystalline wax.

[0088] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, and sorbic acid. Acids such as oleic acid, undecenoic acid, tall oil acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), etc., but not limited to these.

[0089] Examples of higher alcohols include, for example, straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, succinate alcohol, etc.). Alcohols, myristol, oleyl alcohol, hexadecyl alcohol, octadecanol mixture, etc.; branched-chain alcohols (e.g., monostearate glyceryl ether (squalene), 2-decyltetradecyne, lanolin alcohol, cholesterol, phytosterol, hexyldodecanool, isostearyl alcohol, octyldodecanool, etc.), etc., but not limited to these.

[0090] Examples of synthetic ester oils include isopropyl myristate, cetyl octanoate, octyl dodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyl octanoate, cetyl lactate, myristyl lactate, acetylated lanolin, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glyceryl di-2-heptyl undecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, and tri- Glyceryl 2-ethylhexanoate, glyceryl tricaprylate, glyceryl triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristicate, glyceryl tri-2-heptylundecanoate, castor oil fatty acid methyl ester, oleic acid oleate, acetylglycine, 2-heptylundecyl palmitate, diisobutyl adipate, 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 adipate, 2-ethylhexyl succinate, triethyl citrate, etc., but not limited to these.

[0091] Examples of silicone oils include dimethyl polysiloxane, methyl hydrogen polysiloxane, methyl phenyl polysiloxane, stearoxymethyl polysiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyethylene co-modified organopolysiloxane, alkyl-modified organopolysiloxane, unterminated organopolysiloxane, fluorinated organopolysiloxane, amino-modified organopolysiloxane, organosilicon gel, acrylic organosilicon, trimethylsiloxysilicic acid, organosilicon RTV rubber, and other organosilicon compounds, but are not limited to these.

[0092] <Other Ingredients>

[0093] In the cosmetics of the present invention, other ingredients may be appropriately blended as needed, without impairing the effects of the present invention, such as esters, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, moisturizers, water-soluble polymers, thickeners, film-forming agents, ultraviolet absorbers, metal ion blocking agents, lower alcohols, polyols, sugars, amino acids, organic amines, polymeric emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant auxiliaries, fragrances, water, etc., and manufactured by conventional methods according to the desired dosage form.

[0094] The following lists specific ingredients that can be mixed. Powder cosmetics can be prepared by mixing the above-mentioned essential ingredients with any one or more of the following ingredients.

[0095] Examples of anionic surfactants include, for example, fatty acid soaps (e.g., sodium lauryl sulfate, sodium palmitate, etc.); higher alkyl sulfate salts (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfate salts (e.g., POE-triethanolamine lauryl sulfate, sodium POE-sodium lauryl sulfate, etc.); N-acylsarcosine (e.g., sodium lauroyl sarcosine, etc.); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl-N-methyl taurate, sodium coconut oil fatty acid methyl taurate, sodium lauryl methyl taurate, etc.); phosphate salts (POE-oil-based ether phosphate, POE-stearyl ether phosphate, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, lauryl polypropylene glycol). Sodium sulfosuccinate, etc.; alkylbenzene sulfonates (e.g., linear dodecylbenzene sulfonate, linear dodecylbenzene sulfonate triethanolamine, linear dodecylbenzene sulfonic acid, etc.); higher fatty acid ester sulfates (e.g., hardened coconut oil fatty acid glycerol sulfate sodium salt, etc.); N-acylglutamate salts (e.g., N-lauroyl glutamate monosodium, N-stearoyl glutamate disodium, N-myristoyl-L-glutamate monosodium, etc.); sulfated oils (e.g., Turkish red oil, etc.); POE-alkyl ether carboxylic acids; POE-alkyl allyl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkanolamide sulfates; lauroyl monoethanolamide succinate; N-palmitoyl aspartate di(triethanolamine); sodium casein, etc., but not limited to these.

[0096] Examples of cationic surfactants include, for example, alkyl trimethylammonium salts (e.g., stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridines Salts (e.g., cetylpyridine chloride) (etc.); distearate dimethylammonium dialkyl dimethylammonium chloride; poly(N,N'-dimethyl-3,5-methylenepiperidine) chloride ); alkyl quaternary ammonium salts; alkyl dimethyl benzyl ammonium salts; alkyl isoquinoline Salt; dialkylmorpholine Salts; POE-alkylamines; alkylamine salts; polyamine fatty acid derivatives; pentyl alcohol fatty acid derivatives; benzalkonium chloride; benzyl chloride, etc., but not limited to these.

[0097] Examples of amphoteric surfactants include, for instance, imidazoline-based amphoteric surfactants (e.g., sodium 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline, 2-cocoyl-2-imidazoline). Sodium hydroxide-1-carboxyethoxy2-sodium salt, etc.; betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazoline). Betaine, lauryl dimethyl aminoacetic acid betaine, alkyl betaine, amide betaine, sulfobetaine, etc., but not limited to these.

[0098] Examples of lipophilic nonionic surfactants include, but are not limited to, sorbitol fatty acid esters (e.g., sorbitol monooleate, sorbitol monoisostearate, sorbitol monolaurate, sorbitol monopalmitate, sorbitol monostearate, sorbitol sesquioleate, sorbitol trioleate, pent-2-ethylhexyl diglyceride, tetra-2-ethylhexyl diglyceride, etc.); glycerol polyglycerol fatty acids (e.g., cottonseed oil fatty acid glycerides, glycerol monoerucic acid, glycerol sesquioleate, glycerol monostearate, α,α'-oleic acid pyroglutamic acid glycerides, glycerol monostearate, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate); hardened castor oil derivatives; glycerol alkyl ethers, etc.

[0099] Examples of hydrophilic nonionic surfactants include, for example, POE-sorbitol fatty acid esters (e.g., POE-sorbitol monooleate, POE-sorbitol monostearate, POE-sorbitol monooleate, POE-sorbitol tetraoleate, etc.); POE-sorbitol fatty acid esters (e.g., POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE- Sorbitol monostearate, etc.; POE-glycerol fatty acid esters (e.g., POE-glycerol monostearate, POE-glycerol monoisostearate, POE-glycerol triisostearate, etc., POE-monoleate, etc.); POE-fatty acid esters (e.g., POE-distearate, POE-monodioleate, ethylene distearate, etc.); POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-sorbitol ether, etc.). POE-based ethers, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.; poloxamer-type ethers (e.g., poloxamer, 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-glycerol ether, etc.); tetra(POE / tetra(POP)-ethylenediamine condensates (e.g., tetramethylpyrrolidone, etc.); POE-caster oil hardened castor oil derivatives (e.g., POE-caster oil, POE-hardened castor oil, P... OE-cured castor oil monoisostearate, POE-cured castor oil triisostearate, POE-cured castor oil monopyroglutamic acid monoisostearate, POE-cured 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; trioleophosphate, etc., but not limited to these.

[0100] Examples of moisturizers include, but are not limited to, polyethylene glycol, propylene glycol, glycerin, 1,3-butanediol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucin sulfate, carboxylic acid, terminal collagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, oxidized olefin derivatives, short-chain soluble collagen, diglyceride (EO)PO adduct, silk flower extract, yarrow extract, sweet osmanthus extract, etc.

[0101] Examples of natural water-soluble polymers include, but are not limited to, plant-based polymers (e.g., gum arabic, tragacanth, galactomannan, guar gum, carob gum, ebony gum, carrageenan, pectin, agar, quince seeds (quince), seaweed extract (brown algae extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial polymers (e.g., xanthate gum, dextran, succinyl dextran, pachymenorrhizin, etc.); and animal-based polymers (e.g., collagen, casein, albumin, gelatin, etc.).

[0102] Examples of semi-synthetic water-soluble polymers include, but are not limited to, starch-based polymers (e.g., carboxymethyl starch, methyl hydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); and alginate-based polymers (e.g., sodium alginate, propylene glycol alginate, etc.).

[0103] 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., polyethylene glycol 20,000, 40,000, 60,000 polyoxyethylene-polyoxypropylene copolymers, etc.); acrylic polymers (e.g., sodium polyacrylate, ethyl polyacrylate, polyacrylamide, etc.); polyethyleneimine; cationic polymers, etc.

[0104] Examples of thickeners include, but are not limited to, gum arabic, carrageenan, ebony gum, tragacanth gum, carob gum, quince seeds, casein, dextrin, gelatin, sodium pectate, sodium alginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropylcellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind seed gum, dialkyldimethylammonium sulfate cellulose, xanthate gum, magnesium aluminum silicate, bentonite, lithium montmorillonite, AlMg silicate, rapony, and silicic anhydride.

[0105] Examples of ultraviolet absorbers include, for example, benzoic acid-based ultraviolet absorbers (e.g., para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglyceride, 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.); and anthranilic acid-based ultraviolet absorbers (e.g., high...). (e.g., methyl-N-acetyl-o-aminobenzoic acid esters); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, menthyl salicylate, high salicylic acid...) Benzyl esters, octyl 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, isopentyl-p-methoxycinnamate, octyl-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-ethylhexyl -di-p-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-octyloxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.); 3-(4'-methylbenzylene)-d,l-camphor, 3-benzylene-d,l-camphor; 2-phenyl-5-methylbenzophenone Azole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole; dibenzylazine; dianiloylmethane; 4-methoxy-4'-tert-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornyl)-3-pentane-2-one, dimorpholinopyridazinone; 2-ethylhexyl-2-cyano-3,3-diphenylacrylate; 2,4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-(1,3,5)-triazine, etc., but not limited to these.

[0106] Examples of metal ion blocking agents include, but are not limited to, 1-hydroxyethane-1,1-diphosphonic acid, tetrasodium 1-hydroxyethane-1,1-diphosphonic acid, disodium ethylenediaminetetraacetate, trisodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, ethylenediaminetetraacetic acid, and 3-sodium ethylenediaminehydroxyethyltriacetate.

[0107] Examples of lower alcohols include, but are not limited to, ethanol, propanol, isopropanol, isobutanol, tert-butanol, etc.

[0108] Examples of polyols include, for example, diols (e.g., ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 2-buten-1,4-diol, hexanediol, octanediol, etc.); triols (e.g., glycerol, trimethylolpropane, etc.); tetraols (e.g., pentaerythritol, 1,2,6-hexanetriol, etc.); pentaols (e.g., xylitol, etc.); hexaols (e.g., sorbitol, mannitol, etc.); and polyol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol). Tetraethylene glycol, diglycerol, polyethylene glycol, triglycerol, tetraglycerol, polyglycerol, etc.; dialkyl alcohol 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 isopentyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.); dialkyl alcohol 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.; diol 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, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether... Ether acetate, propylene glycol monophenyl ether acetate, etc.); glyceryl monoalkyl ethers (e.g., squalene, squalene, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltitol, mannitol, sucrose, erythritol, glucose, fructose, starch-degrading sugar, maltose, xylitol, starch-degrading sugar reducing alcohol, etc.); glycidyl; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP / POE-butyl ether; trimeroxypropylene glyceryl ether; POP-glyceryl ether; POP-glyceryl ether phosphate; POP / POE-pentaerythritol ether, polyglycerol, etc., but not limited to these.

[0109] Examples of monosaccharides include, for example, trioses (e.g., D-glyceraldehyde, dihydroxyacetone, etc.); tetraoses (e.g., D-erythrose, D-erythulose, D-threose, erythritol, etc.); pentoses (e.g., L-arabinose, D-xylose, L-lythose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.); and hexoses (e.g., D-glucose, D-tarose, D-alulose, D-galactose, D-fructose, L-galactose, L-mannose, D-...). -Tagose, etc.); heptoses (e.g., heptanose, heptanose, etc.); octoses (e.g., octanose, etc.); deoxyglucoses (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.); aminoglucosides (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 not limited to these.

[0110] Examples of oligosaccharides include, but are not limited to, sucrose, gentiotriose, umbelliferose, lactose, psyllium triose, iso-scutellarin, α,α-trehalose, raffinose, scutellarin, stachyose, and verbascosin.

[0111] 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, keratin sulfate, chondroitin, xanthan gum, mucin sulfate, guar gum, dextran, keratin sulfate, locust bean gum, succinyl dextran, carnosic acid, etc.

[0112] Examples of amino acids include, for example, neutral amino acids (e.g., threonine, cysteine, etc.) and basic amino acids (e.g., hydroxylysine, etc.). Furthermore, examples of amino acid derivatives include, for example, sodium lauroyl sarcosinate (sodium lauroyl sarcosinate), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc., but are not limited to these.

[0113] Examples of organic amines include, but are not limited to, monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, etc.

[0114] Examples of polymeric emulsions include, but are not limited to, acrylic resin emulsions, ethyl polyacrylate emulsions, acrylic resin liquids, alkyl polyacrylate emulsions, polyvinyl acetate resin emulsions, and natural rubber latex.

[0115] Examples of pH adjusters include, but are not limited to, buffers such as lactate-sodium lactate, citrate-sodium citrate, and succinate-sodium succinate.

[0116] Examples of vitamins include, but are not limited to, vitamins A, B1, B2, B6, C, E and their derivatives, pantothenic acid and its derivatives, and biotin.

[0117] Examples of antioxidants include, but are not limited to, tocopherols, butylated hydroxytoluene, butylated hydroxyanisole, and gallic acid esters.

[0118] Examples of antioxidant auxiliaries include, but are not limited to, phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, phospholipids, hexametaphosphate, inositol hexaphosphate, and ethylenediaminetetraacetic acid.

[0119] Other ingredients that can be mixed include, for example, preservatives (ethylparaben, butylparaben, chlorophenylglycerin ether, phenoxyethanol, etc.); anti-inflammatory agents (e.g., glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, physalisol, zinc oxide, allantoin, etc.); whitening agents (e.g., placental extract, saxifrage extract, arbutin, etc.); and various extracts (e.g., Phellodendron bark, Coptis chinensis, Lithospermum erythrorhizon, peony root, Japanese swert, birch, sage, loquat, carrot, aloe vera, mallow, iris, grape, coix seed, loofah, lily bulb, saffron, chuanxiong rhizome, ginger, forsythia, red...). The list includes, but is not limited to, ingredients such as gentian root, garlic, chili pepper, dried tangerine peel, angelica, and seaweed; activators (e.g., royal jelly, photosensitizers, cholesterol derivatives); blood circulation promoters (e.g., vanillin nonanoic acid, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, tocopheryl nicotinate, inositol hexanicotinate, cyclomandelate, cinnarizine, tolazoline, acetylcholine, verapamil, sennae, and γ-oryzanol); anti-seborrheic agents (e.g., sulfur, dimethylthiazide); and anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, and taurine).

[0120] Furthermore, it can also be appropriately mixed with metal chelating agents such as disodium EDTA, trisodium EDTA, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, and malic acid; caffeine, tannin, verapamil, tranexamic acid and its derivatives; various herbal extracts such as licorice, papaya, and Japanese deer hoof grass; tocopheryl acetate, glycyrrhetinic acid, glycyrrhizic acid and its derivatives or their salts; vitamin C; magnesium ascorbate phosphate; ascorbate glucoside; arbutin; kojic acid and other whitening agents; amino acids such as arginine and lysine and their derivatives; and sugars such as fructose, mannose, erythritol, trehalose, and xylitol.

[0121] <Product Forms of Cosmetics>

[0122] The product form of the cosmetics of the present invention is not particularly limited, and can take any product form within the category of powder cosmetics. More specifically, examples include, but are not limited to, powder foundation, eyeshadow, blush, talcum powder, face powder, baby powder, pressed powder, deodorant powder, dusting powder, loose powder, etc.

[0123] Furthermore, from the viewpoint of improving formability and impact resistance, the cosmetics of the present invention are particularly applicable to solid powder cosmetics such as powder foundation, eyeshadow, blush, and pressed powder.

[0124] Manufacturing Methods of Powder Cosmetics

[0125] The cosmetic material of the present invention described above can be manufactured by the powder cosmetic material manufacturing method described below.

[0126] (First method for manufacturing the cosmetic material of the present invention)

[0127] In this invention, the first method comprises the following:

[0128] The powder and oil components are dispersed in a solvent to prepare a slurry;

[0129] Fill the container with the slurry; and

[0130] Remove volatile solvents from the slurry after it has been filled into the container.

[0131] Here, the solvent can be either a volatile solvent or a non-volatile solvent. For example, a volatile solvent can be a solution prepared in water as the dispersion medium, with 0-30% by mass of a water-soluble volatile organic solvent such as ethanol, acetone, or isopropanol as a secondary dispersion medium. Furthermore, from the viewpoint of improving moldability and impact resistance, it is preferable to adjust the amount of the secondary dispersion medium such that the contact angle between the volatile dispersion medium and the homogeneous mixture of all cosmetic components is 125-135°. As for non-volatile solvents, examples include, but are not limited to, non-volatile organosilicon-based solvents.

[0132] Furthermore, as a method for preparing the slurry, examples include adding a substance that has been pre-dry-mixed / pulverized from powder and oily components using a Henschel mixer (registered trademark), a pulverizer, etc., to a dispersion solvent, and then mixing / dispersing it using a dispersion mixer, homogenizer, planetary mixer, compimix (registered trademark), Ajihomomikisa, or twin-shaft mixer. Additionally, if the oily component contains oil that becomes solid or pasty at 25°C, it is preferable to dry-mix the oily component with the powder after heating and dissolving it.

[0133] Furthermore, when preparing the slurry, the mass ratio (total ratio) of the powder component to the oil component, while related to the types of oil and powder components used, can generally be between 60 / 40 and 99.5 / 0.5. Moreover, the amount of dispersing solvent used cannot be specified because it depends on the polarity and specific gravity of the solvent; however, ensuring sufficient flowability during filling and molding is important, and it is generally advisable to use approximately half to twice the amount of the cosmetic components.

[0134] The slurry prepared as described above can be appropriately filled into containers such as metal or resin trays by injection filling or other methods.

[0135] Furthermore, by removing the solvent from the slurry after it has been filled into the container, the powder cosmetic of the present invention can be obtained.

[0136] Here, as a method for removing the solvent, it can be carried out, for example, by suction pressing molding, etc., and then, it can be further included by properly drying it through a dryer.

[0137] In addition, this first method can also be called the "wet method".

[0138] (Second method for manufacturing the cosmetic material of the present invention)

[0139] In this invention, the second method comprises the following:

[0140] The powder and oil components are dispersed in a solvent to prepare a slurry;

[0141] The slurry is dried to obtain a dry powder.

[0142] The details regarding the method for preparing the slurry and the solvent are the same as those in "Method 1" above, and therefore are omitted here. In addition, the "slurry preparation process" and "volatile solvent" described in Japanese Patent Application Publication No. 2007-55990 (especially in the case where the solvent is a volatile solvent) may be appropriately adopted.

[0143] Furthermore, the prepared slurry can be dried to obtain a dry powder.

[0144] Here, when drying the slurry, a drying apparatus can be used, for example, to dry the slurry by mechanically shearing it into fine droplets and then supplying drying gas to these fine droplets. Furthermore, this drying apparatus can be a drying apparatus comprising a hollow housing, a shearing mechanism that shears the slurry into fine droplets using a shearing member disposed within the housing, a supply mechanism that supplies slurry to the shearing member within the housing, an air supply mechanism that supplies drying gas into the housing and contacts the slurry that has formed fine droplets through the shearing mechanism, and a collection mechanism that collects the dried powder generated during the drying of the slurry. For further details regarding the drying of the slurry and the drying apparatus used, please refer to, for example, Japanese Patent Application Publication No. 2007-55990.

[0145] Furthermore, the second method of the present invention may further include filling the resulting dry powder into a container and solidifying it by dry molding.

[0146] In addition, this second method can be called the "W&D method".

[0147] Example

[0148] The following examples illustrate the invention in further detail, but the invention is not limited thereto. Furthermore, unless otherwise specified, the amounts of each component are expressed as mass percent.

[0149] Examples 1-3 and Comparative Examples 1-4

[0150] Manufacturing using the W&D method:

[0151] The powder components listed in Table 1 below were mixed with the oily components and then mixed in ethanol using a dispersion mixer. After adjusting the slurry viscosity to approximately 4000 mPa·s, the mixture was further mixed / dispersed using a twin-shaft mixer. This yielded the powder slurry.

[0152] The obtained powder slurry was dried in the form of tiny droplets using a stirring drying device (rotary flash dryer, manufactured by APV Nordic Anhydro) to obtain a dried powder.

[0153] Then, the obtained dry powder was filled into a resin-made tray container and dry-pressed using a known method to obtain the solid powder cosmetics used in Examples 1-3 and Comparative Examples 1-4 respectively.

[0154] Example 4

[0155] Manufacturing using a wet process:

[0156] The powder components and oily components listed in Table 1 below were mixed using a Henschel mixer, and then further pulverized using a pulverizer to obtain a homogeneous mixture. An equal amount of water (a volatile dispersion medium) was added to this mixture, and the mixture was mixed using a dispersion mixer to obtain a slurry. The slurry was filled into a central tray, the solvent was drawn off, and then dried to obtain the solid powder cosmetic used in Example 4.

[0157] Overall usability evaluation

[0158] The overall usability (soft feel, dry feel, powdery texture) of the powder solid cosmetics obtained in the above embodiments and comparative examples was evaluated when applied to the skin based on the following criteria. The results are shown in Table 2.

[0159] (Soft touch)

[0160] “A”: When rubbing the surface with a sponge, loosen the sponge appropriately; even when applying, be very light, resulting in a moist and soft feel.

[0161] "B": When rubbing the surface with a sponge, loosen it appropriately, and when applying it, it has a moist feel.

[0162] “C”: It doesn’t loosen up too much when rubbed with a sponge, and has a dry feel when applied.

[0163] “D”: It doesn’t loosen up too much when rubbed with a sponge, and it has a heavy feel when applied to the skin.

[0164] (Dry feel)

[0165] “A”: When rubbed on the surface with a sponge, it loosens slightly and has a moderate moist feel when applied. It spreads / expands very well on the skin.

[0166] "B": When the sponge is rubbed on the surface, it is loosened appropriately, and the spread / expansion on the skin is good;

[0167] “C”: When rubbing the surface with a sponge, it is not easy to loosen; when applying the product, it gets caught and feels slightly heavy.

[0168] “D”: When rubbing the surface with a sponge, it is not easy to loosen, and when applying, it gets stuck, feeling slightly heavy and with poor spread on the skin.

[0169] (powder feel)

[0170] "A": When the surface is rubbed with a sponge, it is loosened appropriately, resulting in good spreading / expansion during application, adhering well to the skin, and blending immediately;

[0171] "B": When the surface is rubbed with a sponge, it loosens appropriately; when applied, it adheres appropriately; when applied, it spreads / expands well and blends well.

[0172] “C”: When rubbing the surface with a sponge, it doesn’t loosen up easily, and when applied, it leaves powder residue on the skin, making it feel slightly dry.

[0173] "D": When rubbing the surface with a sponge, it doesn't loosen up easily, and when applied, it leaves powder residue on the skin, doesn't blend well, and leaves a dry feeling.

[0174] Evaluation of Formability

[0175] The moldability of the powder solid cosmetics obtained in the above-described embodiments and comparative examples was evaluated. More specifically, the same resinous tray was placed in a mold, 10 g of sample was added, and a pressure of 2.0 MPa was applied to mold it. The moldability of each was evaluated based on the following criteria. The results are shown in Table 2.

[0176] “A”: The middle plate can be molded into a resin-like shape by pressing it under certain pressure;

[0177] “B”: By pressing with a certain pressure, it can be molded into a resin-like disc, but it is brittle;

[0178] “C”: Even when pressed under certain pressure, it does not harden and cannot be shaped.

[0179] Evaluation of impact resistance

[0180] The powdered solid cosmetics obtained in the above-described embodiments and comparative examples were placed in cosmetic box-shaped containers and dropped from a height of 30 cm onto a metal plate with the cosmetic-faced side down. The number of drops until cracking was recorded was investigated. Their impact resistance was evaluated based on the following criteria. The results are shown in Table 2.

[0181] "A": Cases that have cracked more than 8 times.

[0182] "B": In cases where it cracked 6 or 7 times;

[0183] “C”: In cases where cracking has occurred 3 to 5 times;

[0184] “D”: The case where it cracked within 2 attempts (which is equivalent to the case where it could not be formed).

[0185]

[0186]

[0187] As can be clearly seen from Table 2, the cosmetics of Examples 1-4 have improved overall usability, moldability, and impact resistance compared to the cosmetics of Comparative Examples 1-4.

Claims

1. A cosmetic material comprising 80-99% by mass of powder components and 1.0-20% by mass of oil components. The powder composition includes component (A) and at least one selected from components (B) and (C). Composition (A): Hollow silica particles with an average particle size of 1–10 μm. Composition (B): Solid silica particles with an average particle size of 2–7 μm. Composition (C): Porous silica particles with an average particle size of 1–30 μm. The content of ingredient (A) relative to the total amount of cosmetics is 3.0% by mass or more and 20% by mass or less. When containing ingredient (B), its content is less than 10% by mass relative to the total amount of cosmetic. When containing ingredient (C), its content is less than 10% by mass relative to the total amount of cosmetics, and The oily component is selected from liquid fats, solid fats, waxes, hydrocarbons, higher fatty acids, higher alcohols, synthetic esters, and silicone oils.

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

3. The cosmetic material according to claim 1 or 2 is a solid powder cosmetic material.

4. A method for manufacturing the cosmetic material according to any one of claims 1 to 3, comprising: The powder components and the oily components are dispersed in a solvent to prepare a slurry; The slurry is filled into the container; and Remove the solvent from the slurry after it has been filled into the container.

5. A method for manufacturing the cosmetic material according to any one of claims 1 to 3, comprising: The powder components and the oily components are dispersed in a solvent to prepare a slurry; The slurry is dried to obtain a dry powder.

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