Solid powder cosmetics

A combination of nonionic surfactants and an oil agent with a lustrous powder in specific ratios addresses surface unevenness and enhances moistness, adhesion, and brilliance in solid powder cosmetics.

JP7867765B2Active Publication Date: 2026-06-01KAO CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KAO CORP
Filing Date
2021-01-14
Publication Date
2026-06-01

AI Technical Summary

Technical Problem

Conventional solid powder cosmetics suffer from surface unevenness, inadequate moist feeling, adhesion, and brilliance upon application, failing to achieve a uniform and satisfactory appearance.

Method used

A combination of nonionic surfactants with specific HLB values and an oil agent, along with a lustrous powder, is used to create a solid powder cosmetic composition that includes specific ratios of these components to enhance adhesion, spreadability, and brilliance.

Benefits of technology

The composition results in a uniform surface without unevenness, providing a moist, easily spreadable, and adherent cosmetic with excellent radiance and impact resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a solid powder cosmetic that has a good appearance, is applied on skin to spread with moisture, and shows intimate adhesion to the skin and good luster.SOLUTION: A solid powder cosmetic contains following components (A), (B), (C) and (D): (A) a nonionic surfactant with an HLB of less than 6.5, (B) a nonionic surfactant with an HLB of 6.5 or more, (C) an oil solution 12-40 mass%, and (D) lustering powder 15-55 mass%.SELECTED DRAWING: None
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Description

Technical Field

[0001] The present invention relates to solid powder cosmetics.

Background Art

[0002] In solid powder cosmetics such as makeup cosmetics, in order to obtain a high-luminance appearance and finish, a large amount of pearlescent powder may be contained. For example, in Patent Document 1, 15 to 250 parts of an oil-in-water type emulsion composition is mixed with 100 parts of a cosmetic base material mainly composed of a powder containing 15 to 70% by mass of pearlescent powder based on the total powder to form a slurry, and after filling and molding this into a container and removing water, it is described that the obtained solid powder cosmetic is smooth during use and excellent in adhesion to the skin and wet feeling.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in conventional solid powder cosmetics, there were unevenness on the surface after molding, and a uniform and good appearance could not be obtained. Also, in terms of the moist feeling, adhesion feeling, and brilliance feeling when applied to the skin, they were not sufficiently satisfactory.

Means for Solving the Problems

[0005] The present inventor has found that by using a combination of two specific nonionic surfactants together with an oil agent and a pearlescent powder, a good appearance can be obtained, and when applied to the skin, a solid powder cosmetic that is moist, spreads out, and excellent in adhesion feeling and brilliance feeling can be obtained.

[0006] The present invention provides the following components (A), (B), (C), and (D): (A) Nonionic surfactants with an HLB of less than 6.5 (B) Nonionic surfactant with HLB 6.5 or higher, (C) Oil agent 12~40% by mass, (D) Glitter powder 15~55% by mass This relates to a solid powder cosmetic containing [a specific ingredient].

[0007] Furthermore, the present invention comprises the following components (A), (B), and (C): (A) Nonionic surfactants with an HLB of less than 6.5 (B) Nonionic surfactant with HLB 6.5 or higher, (C) Oils Furthermore, volatile solvents containing water A process for producing an oil-in-water emulsion composition containing, (D) A step of mixing a lustrous powder with an oil-in-water emulsion composition to produce a slurry, The process includes removing a volatile solvent containing water from the slurry. The amount of component (C) present in the slurry relative to the components other than the volatile solvent containing water is 12 to 40% by mass. This invention relates to a method for producing a solid powder cosmetic, wherein the amount of component (D) contained in the slurry, other than the volatile solvent containing water, is 15 to 55% by mass. [Effects of the Invention]

[0008] The solid powder cosmetic composition of the present invention has a uniform surface without unevenness, resulting in a good appearance. When applied to the skin, it feels moist, spreads easily, and exhibits excellent adhesion and radiance. It also has excellent impact resistance. [Modes for carrying out the invention]

[0009] The HLB of the nonionic surfactant in component (A) is less than 6.5, preferably between 3.5 and less than 6.5, more preferably between 4 and 6.4, even more preferably between 4.5 and 6.4, and still more preferably between 5.8 and 6.3, from the viewpoint of improving appearance, moist and spreadable feel when applied (hereinafter referred to as moistness), adhesion, and luster.

[0010] In this invention, HLB (Hydrophilic-Lipophilic Balance) represents the molecular weight of the hydrophilic group portion of the total molecular weight of the surfactant, and for nonionic surfactants, it is determined by Griffin's formula.

[0011] Component (A) is a nonionic surfactant, and specifically, examples include those commonly used in cosmetics, such as sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, polyethylene glycol fatty acid esters, sucrose fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyoxyethylene phytostanol ether, polyoxyethylene phytosterose ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, alkyl glyceryl ether modified silicone, polyoxyalkylene modified silicone, polyoxyalkylene-alkyl copolymerized silicone, and polyoxyalkylene-fluoroalkyl copolymerized silicone.

[0012] Component (A) preferably contains at least one or more selected from sorbitan fatty acid esters, glycerin fatty acid esters, and polyglycerin fatty acid esters, from the viewpoint of improving appearance, moistness, adhesion, luster, and impact resistance.

[0013] The nonionic surfactant of component (A) can be used in combination of one or more types, and its content in the total composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, from the viewpoint of improving appearance, moistness, adhesion, luster, and impact resistance, preferably 4% by mass or less, and more preferably 3% by mass or less, and even more preferably 2% by mass or less, particularly from the viewpoint of improving appearance and impact resistance.

[0014] The HLB of the nonionic surfactant component (B) used in the present invention is 6.5 or higher, preferably 6.5 to 16, more preferably 6.8 to 16, and even more preferably 7.5 to 15, from the viewpoint of improving appearance, moistness, adhesion, luster, and impact resistance. Specifically, component (B) may be the same as component (A), and from the viewpoint of improving appearance, moistness, adhesion, luster, and impact resistance, it is preferable to include at least one or more selected from polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, and polyglycerin fatty acid ester, and more preferably to include polyglycerin fatty acid ester.

[0015] The nonionic surfactant of component (B) can be used in combination of one or more types, and its content in the total composition is preferably 0.1% by mass or more from the viewpoint of improving appearance, moistness, adhesion, luster and impact resistance, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more from the viewpoint of improving appearance, moistness, adhesion and luster, preferably 11% by mass or less from the viewpoint of improving appearance, moistness, adhesion, luster and impact resistance, more preferably 7% by mass or less, even more preferably 5% by mass or less, even more preferably 3% by mass or less, and even more preferably 2% by mass or less from the viewpoint of improving appearance, luster and impact resistance.

[0016] As the oil agent of component (C) used in the present invention, those in a liquid or paste state at 25°C are preferred, and any oil agent can be used as long as it is used in ordinary cosmetics. For example, hydrocarbon oils, ester oils, ether oils, silicone oils, higher alcohols, etc. can be mentioned.

[0017] More specifically, examples of the hydrocarbon oil include linear or branched hydrocarbon oils such as squalane, liquid paraffin, liquid isoparaffin, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, petrolatum, etc.

[0018] Examples of the ester oil include monoester oils, diester oils, triester oils, and tetraester oils. Examples of the monoester oil include monoesters of aliphatic or aromatic monocarboxylic acids or dicarboxylic acids having 2 to 24 carbon atoms. Specific examples include cetyl 2-ethylhexanoate, cetyl octanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, isopropyl palmitate, octyl palmitate, 2-hexyldecyl palmitate, butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, alkyl (C12 - C15) benzoate, etc.

[0019] Examples of diester oils include diesters of dicarboxylic acids having 3 to 18 carbon atoms, di-fatty acid esters of polyhydric alcohols, etc. Specific examples include propylene glycol dicaprylate, neopentyl glycol dicaprylate, glycol distearate, propylene glycol diisostearate, glyceryl diisostearate, glyceryl monoisostearate monomyristate, glycerin di(2-heptylundecanoate), di(2-ethylhexyl) succinate, diisopropyl sebacate, diisostearyl malate, ethylene glycol di(2-ethylhexanoate), diisobutyl adipate, di(2-heptylundecyl) adipate, di(2-ethylhexyl) sebacate, etc.

[0020] Examples of triester oils include tri-fatty acid esters of polyhydric alcohols having 3 or more valences. Specifically, they include glycerin trimyristate, glycerin triisopalmitate, glycerin tri(2-heptylundecanoate), trimethylolpropane triethylhexanoate, trimethylolpropane trioctanoate, glycerin tri(caprylyl / caprate), glycerin trioleate, glycerin tri(2-ethylhexanoate), glycerin triisostearate, olive oil, jojoba oil, etc.

[0021] Examples of tetraester oils include tetra-fatty acid esters of polyhydric alcohols having 4 or more valences. Specifically, they include pentaerythritol tetra(behenate / benzoate / ethylhexanoate), pentaerythritol tetraethylhexanoate, pentaerythritol tetraoctanoate, pentaerythritol tetra(2-ethylhexanoate).

[0022] Examples of ether oils include dialkyl ethers. Specifically, they include dihexyl ether, dicaprylyl ether, cetyl-1,3-dimethylbutyl ether, etc.

[0023] Examples of silicone oils include cross-linked methylpolysiloxane, network methylpolysiloxane, dimethylpolysiloxane, methyl trimethicone, dimethylcyclopolysiloxane, diphenylsiloxyphenyl trimethicone, and other methylphenylpolysiloxanes, as well as higher alcohol-modified organopolysiloxanes. Examples of volatile silicone oils include linear dimethylpolysiloxanes such as dimethylpolysiloxane (1 cs), dimethylpolysiloxane (1.5 cs), and dimethylpolysiloxane (2 cs); branched siloxanes such as methyl trimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; and cyclic dimethylsiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

[0024] Examples of higher alcohols include those having linear or branched alkyl or alkenyl groups with 10 to 24 carbon atoms, such as lauryl alcohol, myristyl alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyldodecanol, and oleyl alcohol.

[0025] As for component (C), the oily agent preferably contains at least one or more selected from hydrocarbon oils, ester oils, and silicone oils, from the viewpoint of improving appearance, moistness, adhesion, luster, and impact resistance.

[0026] Component (C) can be used alone or in combination of two or more types, and its content is 12% by mass or more, preferably 15% by mass or more, more preferably 18% by mass or more, 40% by mass or less, preferably 30% by mass or less, and more preferably 25% by mass or less, from the viewpoint of obtaining a good appearance and having excellent moistness, adhesion, and luster.

[0027] The lustrous powder component (D) used in the present invention is not limited as long as it is commonly used in cosmetics. Examples include plate-like powders such as mica, synthetic fluorphlogopite, glass, silica, and alumina, whose surfaces are coated with colorants such as titanium dioxide, iron oxide, silicon dioxide, Prussian blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, and organic pigments, as well as film rolls cut into arbitrary shapes, such as polyethylene terephthalate / polymethyl methacrylate laminated powder, polyethylene terephthalate / aluminum vapor-deposited powder, and polyethylene terephthalate / gold vapor-deposited laminated powder.

[0028] Component (D) can be used alone or in combination of two or more types, and its content is 15% by mass or more, preferably 30% by mass or more, more preferably 35% by mass or more, 55% by mass or less, preferably 45% by mass or less, and more preferably 40% by mass or less, from the viewpoint of obtaining a good appearance and excellent moistness, adhesion, luster and impact resistance in the total composition.

[0029] In the present invention, when the content of component (C) is z and the content of component (D) is v, from the viewpoint of superior appearance, moistness, adhesion, luster, and impact resistance, v / z is preferably 0.8 to 2.9, more preferably 0.9 to 2.7, and even more preferably 1 to 2.5.

[0030] The solid powder cosmetic composition of the present invention may further contain powders other than component (D). Other than component (D), the powders are not limited to those commonly used in cosmetics, and extender pigments, coloring pigments, etc., can be used. Examples of extender pigments include inorganic pigments such as silicic acid, anhydrous silicic acid, magnesium silicate, talc, sericite, boron nitride, mica, synthetic mica, glass flakes, synthetic fluorphlogopite, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silica, alumina, and composite powders thereof.

[0031] Examples of coloring pigments include metal oxides such as titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, Prussian blue, ultramarine blue, chromium oxide, and chromium hydroxide; metal complexes such as manganese violet and cobalt titanate; inorganic pigments such as carbon black; synthetic organic pigments such as Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, and Blue No. 404; and natural organic pigments such as β-carotene, caramel, and paprika pigment.

[0032] Furthermore, organic powders such as polyethylene powder, polypropylene powder, polymethyl methacrylate powder, nylon powder, polytetrafluoroethylene powder, silicone powder, silicone rubber powder, silk powder, urethane powder, cellulose powder, starch powder, and polyfluoroethylene can be used; inorganic powders such as silica, magnesium carbonate, and calcium carbonate; acylated lysine powders such as lauroyl lysine; and metal soap powders, which are metal salts of higher fatty acids, can also be used.

[0033] These powders are not limited in size, shape, etc., and can be used as is, or they can be hydrophobized using conventional methods before use. The hydrophobic treatment is not limited to any treatment applied to ordinary cosmetic powders, and surface treatment agents such as fluorine compounds, silicone compounds, metal soaps, amino acid compounds, lecithin, alkylsilanes, oils, and organic titanates can be used, and dry or wet treatments can be performed. Specific examples of surface treatment agents include fluorine-based compounds such as perfluoropolyethers, perfluoroalkyl phosphates, perfluoroalkylalkoxysilanes, and fluorine-modified silicones; silicone-based compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, cyclic silicones, organopolysiloxanes with one or both trialkoxy groups, cross-linked silicones, silicone resins, fluorine-modified silicone resins, and acrylic-modified silicones; and metallic stones such as aluminum stearate, aluminum myristate, zinc stearate, and magnesium stearate. Examples include soaps; amino acid compounds such as proline, hydroxyproline, alanine, glycine, sarcosine, glutamic acid, aspartic acid, lauroyl lysine, lysine and their derivatives, and acylated amino acids; lecithin, hydrogenated lecithin; alkylsilanes such as methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, and triethoxycaprylylsilane; oils such as polyisobutylene, waxes, fats and oils, and fatty acids; and organic titanates such as isopropyltriisostearoyl titanate. Of these, silicone-based compound treatment and amino acid-based compound treatment are preferred from the viewpoint of improving appearance, moistness, adhesion, and color development.

[0034] Powders other than component (D) can be used individually or in combination of two or more types. The powders other than component (D) preferably include hydrophobic powders other than component (E) (D) from the viewpoint of obtaining a good appearance, being moist and spreading easily when applied to the skin, and having excellent adhesion and color development. The hydrophobic powders only need to have a surface that exhibits hydrophobicity, and may be powders that have been treated to make them hydrophobic as described above, or powders that are hydrophobic in themselves. Whether or not a powder is hydrophobic can be determined, for example, by dispersing the powder in water at 25°C. Specifically, after stirring with a disperser at 1500 rpm for 3 minutes, powders that do not settle or disperse but float on the water can be determined to be hydrophobic powders.

[0035] From the viewpoint of improving appearance, moistness, adhesion, color development, and impact resistance, the content of component (E) is preferably 20% by mass or more, more preferably 25% by mass or more, even more preferably 30% by mass or more, preferably 65% ​​by mass or less, more preferably 60% by mass or less, and even more preferably 55% by mass or less.

[0036] In addition to the above-mentioned components, the solid powder cosmetic composition of the present invention may contain components commonly used in cosmetics, such as surfactants other than components (A) and (B), oily components other than component (C), preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, UV absorbers, moisturizers, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, and the like.

[0037] The solid powder cosmetic composition of the present invention can be manufactured according to conventional methods. For example, the following components (A), (B), and (C): (A) Nonionic surfactants with an HLB of less than 6.5 (B) Nonionic surfactant with HLB 6.5 or higher, (C) Oils Furthermore, volatile solvents containing water A process for producing an oil-in-water emulsion composition containing, (D) A step of mixing a lustrous powder with an oil-in-water emulsion composition to produce a slurry, The process includes removing a volatile solvent containing water from the slurry. The amount of component (C) present in the slurry relative to the components other than the volatile solvent containing water is 12 to 40% by mass. It can be produced by a method for producing solid powder cosmetics, wherein the amount of component (D) contained in the slurry relative to the volatile solvents, including water, is 15 to 55% by mass. This method offers particularly excellent moldability and suppresses appearance defects after the removal of volatile solvents, including water. The components (A), (B), (C), and (D) used here can be the same as those described above, and it is preferable to use the same components.

[0038] The amount of component (C) included in the slurry relative to components other than volatile solvents containing water is 12 to 40% by mass, preferably 15 to 30% by mass, and more preferably 18 to 25% by mass, from the viewpoint of excellent moldability and suppression of appearance defects after solvent removal. From the above viewpoint, the amount of component (D) contained in the slurry relative to components other than the volatile solvent containing water is 15 to 55% by mass, preferably 30 to 45% by mass, and more preferably 35 to 40% by mass.

[0039] Furthermore, when the amount of component (A) included in the slurry, other than the volatile solvent containing water, is X and the amount of component (B) included is Y, from the viewpoint of excellent moldability and suppression of appearance defects after solvent removal, It is preferable that Y ≥ 7X / 3 (X > 0). From a similar perspective, It is preferable that Y ≥ 1.5 - X.

[0040] Furthermore, from the viewpoint of improving moldability, the amount X of component (A) contained in the slurry, relative to components other than volatile solvents including water, is preferably 1.1% by mass or less, more preferably 1% by mass or less, and the amount Y of component (B) contained is preferably 7% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less.

[0041] In the above method, the step of producing an oil-in-water emulsion composition containing components (A), (B), and (C) can be carried out by a conventional method. For example, components (A), (B), and (C) can be heated to make them homogenized, a volatile solvent containing heated water can be added thereto, and the mixture can be obtained by mixing with a homomixer or the like. The amount of volatile solvent containing water used here is preferably 40% to 100% by mass, and more preferably 50% to 90% by mass, relative to the amount of components other than the volatile solvent containing water, from the viewpoint of improving moldability and solvent removal. Other volatile solvents besides water can include, for example, ethanol, propyl alcohol, isopropyl alcohol, acetone, ethyl acetate, hexane, etc., which can be mixed with water and used together. Furthermore, from the viewpoint of simplifying the manufacturing equipment, considering the environment, and improving the appearance, moistness, adhesion, and luster of the product, it is preferable that the amount of water in the volatile solvent be 80% by mass or more, and more preferably 90% by mass or more. Furthermore, when incorporating water-soluble components into the solid powder cosmetic composition of the present invention, they can be dissolved in a volatile solvent containing water before incorporation.

[0042] Furthermore, the process of producing a slurry by mixing the lustrous powder of component (D) with an oil-in-water emulsion composition can be carried out, for example, by adding the powder component containing component (D) to the obtained oil-in-water emulsion composition and kneading it with a rotary-orbit mixer or a disper mixer to obtain the slurry. Furthermore, the step of removing volatile solvents containing water from the slurry can be carried out, for example, by filling the slurry into a container such as a tray and removing the solvent by pressing and suctioning, or by heating and drying, or by hot air drying. This makes it possible to obtain a solid powder cosmetic.

[0043] The solid powder cosmetic composition of the present invention is suitable for use as, for example, powder foundation, blush, eyeshadow, and other makeup cosmetics. [Examples]

[0044] Examples 1-8, Comparative Examples 1-4 Solid powder cosmetics were manufactured using the formulations shown in Table 1 (units are in mass%), and their moldability, moistness, adhesion, luster, appearance, and impact resistance were evaluated. The results are also shown in Table 1.

[0045] (Manufacturing method) (1) Emulsification: In a beaker, oils (components 6-8) and surfactants (components 1-5) from the cosmetic base were weighed and heated to 60°C until homogenized. Next, preservative (component 9) was added to the aqueous phase (water outside the cosmetic formulation; Table 1 shows the mass % relative to the total cosmetic base) heated to 60°C, and this was added to the beaker. The mixture was then mixed in a homomixer at 6,000 rpm for 5 minutes. After that, the mixture was cooled with water while stirring with a spatula to obtain an emulsion. (2) Powder input: The powders of components 10 to 19 of the cosmetic base were weighed into a plastic bag, air was added, and the bag was shaken to mix them, obtaining a bag-mixed powder. Next, the emulsion was weighed into a plastic container, the obtained bag-mixed powder was added, and mixed with a spatula. After that, it was kneaded for 150 seconds in a rotary-orbit mixer to obtain a slurry. (3) Filling, pressing and suctioning, drying: 3 g of slurry was filled into a 27 mm x 27 mm aluminum tray, and the solvent was aspirated by pressing and suctioning twice at 0.15 MPa for 1 second and then at 0.15 MPa for 2 seconds. The remaining solvent was heated and dried at 60°C for 12 hours to obtain a molded product of solid powder cosmetic.

[0046] (Evaluation method) (1)Moldability: The hardness of each obtained solid powder cosmetic was measured using a rheometer CR-100 (Sun Science Co., Ltd., jig 2 mmφ, needle insertion 1 mm, 60 mm / min), and the moldability was evaluated based on the obtained hardness values. The results are shown in hardness values ​​[gf]. Higher hardness values ​​indicate better moldability.

[0047] (2) Moisturizing feel, close adherence, and radiant feel: Twenty female panelists conducted a sensory evaluation of each solid powder cosmetic product, assessing its moisturizing effect, adherence, and radiance upon application to the skin. The results are shown as the number of respondents who rated each product as "good."

[0048] (3) Appearance: Twenty female panelists visually observed the appearance of each solid powder cosmetic. The results are shown as the number of people who answered that the surface was uniform and smooth, indicating a good appearance.

[0049] (4) Impact resistance: Each solid powder cosmetic was placed inside a cosmetic compact and repeatedly dropped 20 times from a height of 20 cm onto a wooden board. Impact resistance was evaluated based on the number of drops until chipping, cracking, or other abnormalities occurred. A higher number of drops indicated superior impact resistance.

[0050] [Table 1]

Claims

1. The following components (A), (B), (C), (D), and (E): (A) Nonionic surfactant with an HLB of less than 6.5, 0.1 to 0.6% by mass. (B) Nonionic surfactant with HLB 6.5 or higher, 1.5 to 2% by mass. (C) Liquid oil at 25°C, 12-40% by mass. (D) Glitter powder 15-55% by mass (E) Hydrophobic powders other than component (D) A solid powder cosmetic containing [a specific ingredient].

2. The solid powder cosmetic composition according to claim 1, wherein when the content of component (C) is z and the content of component (D) is v, v / z = 0.8 to 2.

9.

3. The following components (A), (B), and (C): (A) Nonionic surfactant with an HLB of less than 6.5, 0.1 to 0.6% by mass. (B) Nonionic surfactant with HLB 6.5 or higher, 1.5 to 2% by mass. (C) Liquid oil at 25°C Furthermore, volatile solvents containing water A process for producing an oil-in-water emulsion composition containing, (D) A step of mixing a glossy powder with an oil-in-water emulsion composition to produce a slurry, Steps to remove volatile solvents containing water from a slurry. and The amount of component (C) present in the slurry relative to the components other than the volatile solvent containing water is 12 to 40% by mass. A method for producing a solid powder cosmetic, wherein the amount of component (D) contained in the slurry relative to components other than volatile solvents including water is 15 to 55% by mass.

4. When X is the amount of component (A) and Y is the amount of component (B) present in the slurry, with respect to components other than water and volatile solvents, A method for producing a solid powder cosmetic according to claim 3, wherein Y ≥ 7X / 3 (X > 0).

5. When X is the amount of component (A) and Y is the amount of component (B) present in the slurry, with respect to components other than water and volatile solvents, A method for producing a solid powder cosmetic according to claim 3 or 4, wherein Y ≥ 1.5 - X.