JP2020183352A - Solid powder cosmetic - Google Patents

Abstract

To provide a solid powder cosmetic which has good spreadability to the skin during application, excellent moist feeling and sustainability thereof and sufficient impact resistance even if water is used as a volatile solvent in a wet method.SOLUTION: There is provide a solid powder cosmetic obtained by mixing a cosmetic base material containing a powder and an oil agent with one or two or more mixed solvents selected from water and an aqueous solvent to form a slurry state, followed by filling in a container to remove the solvent, which comprises the following components (A), (B), (C) and (D): (A) a powder, (B) an oil agent which is liquid at 25°C, (C) an oil agent which is semi-liquid at 25°C and (D) a polyhydric alcohol, wherein the mass ratio (C)/(B) of the component (C) to the component (B) is 0.3 or more and the total amount of the components (B), (C) and (D) is 6.6 to 27 mass% in the total amount of the cosmetic base material.SELECTED DRAWING: None

Description

The present invention relates to solid powder cosmetics.

There are two methods for producing solid powder cosmetics: a dry method in which powder and an oil agent as a binder are mixed and then compacted, and a volatile solvent is added to a cosmetic base material consisting of powder and an oil agent to form a slurry, which is then placed in a container. After filling, there is a wet method in which the volatile solvent is dried and removed to obtain a cosmetic.
The solid powder cosmetic obtained by the wet method has a fine powder quality and a moist feeling when the powder and the oil agent are uniformly dispersed after passing through the slurry state. As described above, in the wet method, volatile hydrocarbons and low boiling point alcohols are used as the solvent because it is necessary to uniformly disperse the powder and the oil which are the base materials in the slurry and from the viewpoint of removing the solvent. It is widely used.
However, since volatile hydrocarbons and low boiling point alcohols require attention in terms of work safety and environmental issues, it is considered to use water or an aqueous solvent as the volatile solvent in the wet method. ing.

However, the wet method using water or an aqueous solvent has a drawback that the impact resistance is significantly impaired compared to the dry method or the organic solvent-based wet method in terms of the manufacturing method, and various studies have been made to improve this. It is done.
For example, in Patent Document 1, a hydrophobized powder, a water-holding oil agent, a polyhydric alcohol, a surfactant having an HLB of 10 or less, and a slurry-like composition containing water are filled in a container, and then water is removed. It is described that the produced solid powder cosmetic has a smooth touch, a fresh texture, excellent sensory characteristics such as fit, and excellent impact resistance.
Further, Patent Document 2 describes a powder containing (fluoride / hydroxylation / oxidation) / (Mg / K / silicon), a powder having hydrophobicity and flexibility, and an oil agent containing a water-holding oil agent. A solid powder cosmetic produced by mixing a cosmetic base material prepared by mixing and an aqueous solvent to form a slurry, filling it in a container, and then removing an external preparation has an excellent usability. It is described that it has impact resistance.

Japanese Unexamined Patent Publication No. 2011-74023 JP-A-2017-160169

However, the solid powder cosmetics of Patent Documents 1 and 2 did not sufficiently spread and spread on the skin at the time of application. In addition, there is also a problem that the moist feeling and impact resistance at the time of application are inferior.

In order to solve these problems, the present inventor focused on the familiarity of oils and powders when preparing a slurry using water, and proceeded with the study. As a result, liquid oils and semi-solid oils, and further, By using a combination of polyhydric alcohols in a specific ratio, even when water is used as the volatile solvent in the wet method, the spread and spread to the skin at the time of application is good, and the moist feeling and its durability are improved. It has been found that a solid powder cosmetic having excellent and sufficient impact resistance can be obtained.

In the present invention, a cosmetic base material containing a powder and an oil agent is mixed with a single solvent selected from water and an aqueous solvent or a mixed solvent of two or more kinds to form a slurry, which is filled in a container and then the solvent is used. A solid powder cosmetic obtained by removing the following components (A), (B), (C) and (D):
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C,
(D) Contains a polyhydric alcohol, the mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 or more, and the components (B), (C) and (D) For solid powder cosmetics, the total amount of which is 6.6 to 27% by mass in the total amount of the cosmetic base material.

Further, in the present invention, the following components (A), (B), (C) and (D):
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C. 5 to 15% by mass,
(D) Contains a polyhydric alcohol, the mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 or more, and the components (B), (C) and (D) For solid powder cosmetics, the total amount of which is 6.6 to 27% by mass.

Further, the present invention comprises a cosmetic base material prepared by mixing an oil agent containing the components (B), (C) and (D) having the following compositions and a powder containing the following components (A). The present invention relates to a method for producing a solid powder cosmetic, which comprises mixing a single solvent selected from water and an aqueous solvent or a mixed solvent of two or more kinds to form a slurry, filling the container, and then removing the solvent.
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C,
(D) The mass ratio (C) / (B) of the component (C) to the polyhydric alcohol component (B) is 0.3 or more.
The total amount of the components (B), (C) and (D) is 6.6 to 27% by mass in the total amount of the cosmetic base material.

In the solid powder cosmetics of the present invention, even when water is used as a volatile solvent in the wet method, the base material components are uniformly dispersed, and the spread and spread on the skin at the time of application are good, and a moist feeling and its moist feeling and its It has excellent durability and sufficient impact resistance. It also has excellent makeup durability.

The powder of the component (A) used in the present invention is not limited as long as it is used in ordinary cosmetics, and extender pigments, coloring pigments, brilliant pigments and the like can be used.
Examples of extender pigments include silicic acid, silicic anhydride, magnesium silicate, talc, sericite, boron nitride, mica, synthetic mica, glass flakes, synthetic gold mica, kaolin, clay, bentonite, bismuth oxychloride, and zirconium oxide. , Inorganic pigments such as magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silica, alumina and composite powders thereof.

Examples of the coloring pigment include metal oxides such as titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, dark blue, ultramarine blue, chromium oxide, and chromium hydroxide; and metal complexes such as manganese violet and cobalt titanate; Furthermore, inorganic pigments such as carbon black; 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. No., 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, Blue No. 404, etc. Synthetic organic pigments; natural organic pigments such as β-carotene, caramel, and paprika pigments.

As the bright pigment, the surface of plate-like powder such as mica, synthetic gold mica, glass, silica, and alumina is surfaced with titanium oxide, iron oxide, silicon oxide, navy blue, chromium oxide, tin oxide, chromium hydroxide, and gold. , Silver, carmine, organic pigments and other colorants, and polyethylene terephthalate / polymethylmethacrylate laminated powder, polyethylene terephthalate / aluminum vapor deposition powder, polyethylene terephthalate / gold vapor deposition laminated powder, etc. It is possible to use the one cut into.
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 polyethylene fluoride Inorganic powders such as silica, magnesium carbonate and calcium carbonate; acylated lysine powders such as lauroyl lysine; metal soap powder which is a higher fatty acid metal salt and the like can be used.

Further, the above-mentioned organic powder or inorganic powder is preferably a spherical powder from the viewpoint of improving the powder removability of the solid powder cosmetic and the viewpoint of improving the spread on the skin, and is preferably an extender pigment or a coloring pigment. , It is more preferable to use a pigment which is at least one of high-brightness pigments and a spherical powder in combination.

These powders are not limited in size, shape, etc., and can be used as they are, or can be hydrophobized or hydrophilized by a usual method.
The hydrophobizing treatment is not limited as long as it is a treatment applied to ordinary cosmetic powders, such as fluorine compounds, silicone compounds, metal soaps, amino acid compounds, lecithin, alkylsilanes, oils, and organic titanates. Dry treatment, wet treatment, etc. may be performed using the surface treatment agent of.
Specific examples of the surface treatment agent include fluorine-based compounds such as perfluoropolyether, perfluoroalkyl phosphate, perfluoroalkyl alkoxysilane, and fluorine-modified silicone; dimethylpolysiloxane, methylhydrogenpolysiloxane, cyclic silicone, and pieces. Silicone compounds such as terminal or both terminal trialkoxy group-modified organopolysiloxanes, crosslinked silicones, silicone resins, fluorine-modified silicone resins, acrylic-modified silicones; aluminum stearate, aluminum myristate, zinc stearate, magnesium stearate, etc. Metal soap; proline, hydroxyproline, alanine, glycine, sarcosine, glutamate, aspartic acid, lauroyl lysine, lysine and derivatives thereof, amino acid compounds such as acylated amino acids; lecithin, hydrogenated lecithin; methyltrimethoxysilane, ethyltri Alkoxysilanes such as methoxysilane, hexyltrimethoxysilane, octyltrimethoxysilane, octylriethoxysilane, triethoxycaprylylsilane; oils such as polyisobutylene, wax, fats and oils, fatty acids; organic titanates such as isopropyltriisostearoyl titanate, etc. Can be mentioned.

Further, the hydrophilic treatment is not limited as long as it is a treatment applied to ordinary cosmetic powder.
For example, Arabic gum, tragacant, arabinogalactan, locust bean gum (carob gum), guar gum, karaya gum, carrageenan, pectin, agar, quince seed (malmero), starch (rice, corn, potato, wheat), algae colloid, tranth gum, Plant-based macromolecules such as locust bean gum; microbial macromolecules such as xanthan gum, dextran, succinoglucan, and purulan; animal macromolecules such as collagen, casein, albumin, deoxyribonucleic acid (DNA) and salts thereof; carboxymethyl starch , Methyl hydroxypropyl starch and other starch-based polymers; methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, carboxymethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder Polymers; Alginic acid-based polymers such as sodium alginate and propylene glycol alginate; Vinyl-based polymers such as polyvinyl methyl ether, polyvinylpyrrolidone and carboxyvinyl polymers; Polyoxyethylene-based polymers such as polyethylene glycol and polyethylene glycol silane; Poly Oxyethylene polyoxypropylene copolymer system polymer; acrylic polymers such as sodium polyacrylate, polyethyl acrylate, and polyacrylic acid amide, and inorganic silicic acid compounds such as silica can be mentioned.

The powder of the component (A) preferably contains a hydrophobic powder from the viewpoints of powder removal, spreading and spreading during application, and long-lasting makeup, and is preferably a fluorine compound, a silicone compound, a metal soap, or an amino acid compound. , Lecithin, alkylsilane, oil, organic titanate and the like are more preferable.

When the above-mentioned hydrophobic powder is contained as the powder of the component (A), the hydrophobic powder is preferably 10% by mass or more, more preferably 30% by mass or more, and 50% by mass in the total powder. The above is more preferable.

The powder of the component (A) can be used alone or in combination of two or more, and the content is determined from the viewpoints of spreading and spreading at the time of application, moist feeling at the time of application, makeup durability and impact resistance. 75 to 93% by mass is preferable, 83 to 92% by mass is more preferable, and 85 to 90% by mass is further preferable in the total amount of the cosmetic base material.

The oil agent of the component (B) used in the present invention is liquid at 25 ° C. It has a melting point of less than 30 ° C and is a fluid oil component.
In the present invention, the melting point is measured by the third method of the general test method described in the cosmetic raw material standard. That is, the sample is gradually heated to 90 to 92 ° C. to melt while stirring, the heating is stopped, and the sample is allowed to cool to a temperature 8 to 10 ° C. higher than the melting point. Next, after cooling the thermometer (the thermometer for the petrolatum melting point specified in Japanese Industrial Standard B7410) to 5 ° C., wipe off the water with a filter paper, insert half of the mercury bulb into the sample, immediately remove it, and keep it vertical. When the sample is allowed to cool and the adhered sample becomes turbid, it is immersed in water at a temperature of 16 ° C. or lower for 5 minutes. Next, insert the thermometer into the examiner and fix the thermometer with cork so that the distance between the lower end of the thermometer and the bottom of the test tube is 15 mm. This test tube is fixed in a 500 mL beaker containing water at about 16 ° C. so that the distance between the bottom of the test tube and the bottom of the beaker is 15 mm, and it takes 1 minute until the bath temperature reaches 30 ° C. Heat so that the temperature rises by 2 ° C. Then, heating is continued so that the temperature rises by 1 ° C. per minute, and the temperature at which a drop of the sample is separated from the thermometer is measured. This test is performed three times, and when the difference between the measured values is less than 1 ° C., the average value is taken, and when the difference is 1 ° C. or higher, the average value is taken five times and used as the melting point.

The oil agent of the component (B) is not limited as long as it is used in ordinary cosmetics, and for example, liquid paraffin, light liquid isoparaffin, heavy liquid isoparaffin, mineral oil, squalane, α-olefin oligomer, polyisobutylene. , Polybutene, hydrogenated polyisobutene, hydrogenated polydecene and other linear or branched hydrocarbon oils; isononyl isononanoate, isodesyl isononanoate, isotorideyl isononanoate, tricyclodecanemethyl isononanoate, ethyl isostearate, isobutyl isostearate, isostearic acid. Isopropyl, 2-hexyldecyl isostearate, di2-hetylhexyl succinate, bisethoxydiglycol succinate, hexyl laurate, di (capric acid / capric acid) propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate , Glyceryl diisostearate, Polyglyceryl diisostearate, Propanediol diisostearate, Trimethylolpropane triisostearate, Glyceryl triisostearate, Diglyceryl triisostearate, Diglyceryl tetraisostearate, Diisostearyl malate, Octyldodecyl malate, Glycerin Fatty acid ester, jojoba oil, di lauroyl glutamate (phytosteryl / octyldodecyl), octyldodecyl myristate, isopropyl myristate, 2-ethylhexyl palmitate, isopropyl palmitate, cetyl 2-ethylhexanoate, trimethylolpropane tri2-hetylhexanoate , Tri2-ethylhexanoate glyceryl, octyldodecyl myristate, 2-hexyldecyl myristate, 2-hexyldecyl 2-ethylhexanoate, neopentylglycol di2-ethylhexanoate, ethylhexyl hydroxystearate, tri (caprylic acid) / Capric acid) Glyceryl, glyceryl trioctanoate, neopentyl glycol dioctanoate, tritridecyl trimeritate, dipentaerythrityl tetraisostearate, pentaerythrit tetraisostearate, octyl methoxycinnamate, 2-ethylhexyl paramethoxysilicate, diisopropyl dimerate Etc .; higher alcohols such as lauryl alcohol, oleyl alcohol, octyldodecanol; dimethylpolysiloxane, dimethylcyclopolysiloxane, methyl Silicone oils such as phenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane; fluorine oils such as fluoropolyether, perfluoroalkyl ether silicone, and fluorine-modified silicone; phenoxyethanol and the like.

Of these, low-viscosity oils are preferable, and specifically, those having a viscosity of less than 500 mPa · s at 20 ° C. are preferably included, and 100 mPa. -Those less than s are more preferable.
Here, for the viscosity, for example, using a B-type viscometer (Bismetron viscometer: model VS-A1 (manufactured by Shibaura System Co., Ltd.), if the viscosity is less than 1000 mPa · s, spindle number 1, 6 rpm (rotation / minute). Spindle number 3, 12 rpm (rotation / minute) when the viscosity is 1000 mPa · s or more for 30 seconds, spindle number 4, 6 rpm (rotation / minute), 30 seconds when the viscosity is 10,000 mPa · s or more. Measured in seconds.

When the above-mentioned low-viscosity oil is contained as the liquid oil of the component (B), the low-viscosity oil is preferably 10% by mass or more, more preferably 30% by mass or more, and 50 by mass in the liquid oil of the component (B). More preferably by mass% or more.

The oil of the component (B) preferably contains a hydrocarbon oil because it spreads well on the skin when applied, and contains squalane, squalene, mineral oil, α-olefin oligomer, polyisobutylene, and the like. More preferred are polybutene, hydrogenated polyisobutene, hydrogenated polydecene and the like.

The oil agent of the component (B) can be used alone or in combination of two or more, and the content is 0.5% by mass in the total amount of the cosmetic base material from the viewpoint of spreading and spreading on the skin at the time of application. The above is preferable, 2% by mass or more is more preferable, 4% by mass or more is further preferable, 15% by mass or less is preferable, 11% by mass or less is more preferable, and 7% by mass or less is further preferable. The content of the oil agent of the component (B) is preferably 0.5 to 15% by mass, more preferably 2 to 11% by mass, and even more preferably 4 to 7% by mass in the total amount of the cosmetic base material.

The oil agent of the component (C) used in the present invention is a semi-solid oil agent at 25 ° C. and has a melting point of 30 ° C. or higher and lower than 61 ° C., and when used in the solid powder cosmetic of the present invention, a moist feeling at the time of application. It has the effect of sustaining a moist feeling and lasting makeup.
The oil of the component (C) is not limited as long as it is used in ordinary cosmetics, and for example, vaseline (57 ° C), mokuro (60 ° C), synthetic mokuro (53 ° C), vinyl leather wax (54). ℃), Hexa (bechenic acid / benzoic acid / ethylhexanoic acid) dipentaerythrityl (52 ℃), cholesteryl hydroxystearate (52 ℃), tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl (50 ℃), hydrogenated palm oil (° C) 47 ° C), dipentaerythrityl hexahydroxystearate (45 ° C), tri (capric acid / capric acid / myristic acid / stearic acid) glyceryl (40 ° C), hexa (hydroxystearic acid / stearic acid / linoleic acid) dipentaerythrityl (37 ° C) ), Phytosteryl oleate (33 ° C), (ethylhexanoic acid / stearic acid / adipic acid) glyceryl (31 ° C), di (octyldodecyl / phytosteryl / behenyl) lauroyl glutamate (33 ° C), dimer dilinoleic acid (phytosteryl / Isostearyl / cetyl / stearyl / behenyl) (34 ° C), dimer dilinoleyl bis (behenyl / isosteryl / phytosteryl) (38 ° C), hard lanolin (49 ° C), reduced lanolin (45 ° C), Bisdiglyceryl polyacyl adipate-2 (39 ° C) and the like can be mentioned.

The component (C) preferably contains a water-holding oil agent capable of holding water equal to or more than its own weight, from the viewpoint of excellent moist feeling at the time of application and maintaining the moist feeling for a long time. Here, the water-holding oil agent is not particularly limited as long as it is an oil agent having a water-holding power equal to or more than its own weight in the following water-holding test.
(Water holding test)
10 g of the oil agent is heated to 50 ° C., and water at 50 ° C. is gradually added while stirring until water is drained from the oil agent, and the mixture is left at room temperature for 24 hours. Then, the separated water is removed, and the amount (mass g) of the water embraced by the oil agent is measured. This value was divided by the amount of oil (10 g) and multiplied by 100 to obtain the water holding capacity (%).

Examples of such water-holding oils include lanolin derivatives such as lanolin, lanolin alcohol, lanolin fatty acid, and lanolin acetate; cholesterol derivatives such as hydroxy fatty acid cholesteryl and branched fatty acid cholesteryl; and phytosterol derivatives.
Of these, phytosteryl isostearate, phytosteryl oleate, phytosteryl hydroxystearate, macadamia nut fatty acid phytosteryl, branched fatty acid (C12-31) phytosteryl, and dimer linoleic acid are considered to be moist when applied and not dry over time. Acid (isostearyl / phytosteryl), dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimer dilinoleyl bis (behenyl / isostearyl / phytosteryl), dilauroyl glutamate (octyldodecyl /) Phytosterol derivatives such as phytosteryl / behenyl) and di lauroyl glutamate (phytosteryl / octyldodecyl) are preferred.

When the above-mentioned water-holding oil agent is contained as the semi-solid oil agent of the component (C), the water-holding oil agent is preferably 30% by mass or more, more preferably 50% by mass or more, and 70% by mass in the total semi-solid oil agent. More preferably by mass% or more.

The oil agent of the component (C) can be used alone or in combination of two or more, and the content is high in makeup persistence, does not have a moist feeling at the time of application, does not have a dry feeling over time, and has impact resistance. From the viewpoint of properties, 0.5% by mass or more is preferable, 1% by mass or more is more preferable, 2% by mass or more is further preferable, 15% by mass or less is preferable, and 10% by mass or less is more preferable in the total amount of the cosmetic base material. It is preferable, and 8% by mass or less is more preferable. The content of the oil agent of the component (C) is preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass, and even more preferably 2 to 8% by mass in the total amount of the cosmetic base material.

The semi-solid oil agent of the component (C) is usually not contained in a large amount in the solid powder cosmetics, but in the present invention, the component (C), particularly the water-holding oil agent, is contained in the cosmetic composition. It is possible to increase the amount. Specifically, from the viewpoint of moist feeling and impact resistance at the time of application, the cosmetic composition can preferably contain 5 to 15% by mass, more preferably 7 to 13% by mass, and at the time of application. In addition to a moist feeling and a lack of dryness over time, it is excellent in that it has a good balance of impact resistance, spread spread, and makeup durability.

In the present invention, the mass ratio (C) / (B) of the component (C) to the component (B) is a point that both good spreadability at the time of application and a moist feeling at the time of application are compatible, and the moist feeling is maintained for a long time. Therefore, it is 0.3 or more, preferably 0.5 or more, more preferably 0.7 or more, more preferably 10 or less, more preferably 5 or less, still more preferably 2 or less. The mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 or more, preferably 0.3 to 10, more preferably 0.5 to 5, and 0.7. ~ 2 is more preferable.

The polyhydric alcohol of the component (D) used in the present invention is a compound having two or more hydroxyl groups in the molecule, and 2- to tetrahydric alcohol is preferable.
The polyhydric alcohol is not limited as long as it is used in ordinary cosmetics, and for example, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol (average molecular weight less than 650), propylene glycol, dipropylene glycol, polypropylene glycol. (Average molecular weight less than 650), glycols such as isoprene glycol, 1,3-butylene glycol; glycerin, diglycerin, polyglycerin; pentaerythritol and the like.

Of these, dipropylene glycol, 1,3-butylene glycol, glycerin, and polypropylene glycol (average molecular weight less than 650) are preferable, and dipropylene glycol and 1,3-butylene glycol are preferable from the viewpoint of spreading and spreading on the skin at the time of application. Is even more preferable.

The polyhydric alcohol of the component (D) can be used alone or in combination of two or more, and the content is such that it spreads and spreads on the skin at the time of application, and does not have a moist feeling at the time of application and a dry feeling over time. From this point of view, 0.5% by mass or more is preferable, 1% by mass or more is more preferable, 2% by mass or more is further preferable, 10% by mass or less is preferable, and 7% by mass or less is more preferable in the total amount of the cosmetic base material. 5, 5% by mass or less is more preferable. The content of the polyhydric alcohol of the component (D) is preferably 0.5 to 10% by mass, more preferably 1 to 7% by mass, and even more preferably 2 to 5% by mass in the total amount of the cosmetic base material.

In the present invention, the total amount of the components (B), (C) and (D), that is, the total amount of the liquid oil at 25 ° C., the semi-solid oil at 25 ° C., and the polyhydric alcohol is the elongation at the time of application. From the viewpoint of good spreadability, moist feeling at the time of application, and maintenance of moist feeling, the total amount of the cosmetic base material is 6.6% by mass or more, preferably 10% by mass or more, more preferably 12% by mass or more, 27. It is 0% by mass or less, preferably 20% by mass or less, and more preferably 16% by mass or less. The total amount of the components (B), (C) and (D) is 6.6 to 27% by mass, preferably 10 to 20% by mass, and 12 to 16% by mass in the total amount of the cosmetic base material. More preferred.

In the present invention, the mass ratio (D) / (C) of the component (D) to the component (C) improves the impact resistance, spreads well on the skin at the time of application, and has excellent makeup durability. , 0.01 or more is preferable, 0.1 or more is more preferable, 0.3 or more is further preferable, 10 or less is preferable, 5 or less is more preferable, 3 or less is more preferable, and 1 or less is further preferable. The mass ratio (D) / (C) of the component (D) to the component (C) is preferably 0.01 to 10, more preferably 0.1 to 5, more preferably 0.1 to 3, and 0. .3-1 is even more preferred.

In the solid powder cosmetics of the present invention, any cosmetic base material other than the above-mentioned ingredients can be used as long as it is used for ordinary cosmetics. For example, various additions such as oil agents other than the above, surfactants, polymer compounds, moisturizers other than component (D), pH adjusters, antioxidants, fungicides, fungicides, ultraviolet absorbers, fragrances, beauty ingredients, etc. The agent can be appropriately blended as long as the effect of the present invention is not impaired.
As the surfactant, any surfactant that is used in ordinary cosmetics can be used, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. .. For example, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, polyoxyethylene hydrogenated castor oil, polyoxyalkylene alkyl co-modified organopolysiloxane, Examples thereof include polyether-modified organopolysiloxane and lecithin.

The solid powder cosmetic of the present invention is a cosmetic base material prepared by mixing an oil agent containing the components (B), (C) and (D) with a powder containing the component (A), and water. It is produced by mixing a single solvent selected from the aqueous solvent and a mixed solvent of two or more kinds to form a slurry, filling the container, and then removing the solvent.

The cosmetic base material is prepared by stirring and mixing the above components using a device for producing ordinary powder cosmetics.
More specifically, in the cosmetic base material, first, an oil agent containing the components (B), (C) and (D) is mixed, and if necessary, it is dissolved by heating. On the other hand, the powder containing the component (A) is uniformly mixed. It is prepared by adding an oil agent to this powder, uniformly dispersing it, and pulverizing it.
The cosmetic base material thus obtained is mixed with water and a mixed solvent of two or more kinds selected from water and an aqueous solvent to form a slurry, filled in a container, and then the solvent is removed. A solid powder cosmetic can be obtained. It may also include a step of pressing the filled cosmetics before the drying step of removing the solvent.

Among the solvents used for mixing with the cosmetic base material, low boiling alcohols such as ethyl alcohol, propyl alcohol, isopropyl alcohol and butyl alcohol are preferable as the aqueous solvent.
As the solvent, water alone or an alcohol aqueous solution in which a low boiling point alcohol is dissolved in water is preferable. The low boiling point alcohol concentration in the alcohol aqueous solution is preferably 50% by mass or less. The higher the alcohol concentration in the alcohol aqueous solution, the better the dispersion of the cosmetic base material during the slurry preparation, the better the usability, and the more impact-resistant solid powder cosmetics can be obtained. However, in the solid powder cosmetic of the present invention, since it is possible to obtain a solid powder cosmetic having a very good usability and sufficient impact resistance without using a low boiling point alcohol at all, an alcohol aqueous solution can be obtained. The low boiling point alcohol concentration in the medium can be more preferably 25% by mass or less, further preferably 10% by mass or less, and particularly preferably 5% by mass or less.

In the present invention, when a slurry is prepared using a cosmetic base material and a single solvent selected from water and an aqueous solvent or a mixed solvent of two or more kinds, the cosmetic base material has a fluidity suitable for filling. It is preferable to use 50 to 120 parts by mass of a single solvent or a mixed solvent of two or more kinds selected from water and an aqueous solvent with respect to 100 parts by mass, and more preferably 70 to 100 parts by mass.

After mixing the cosmetic base material with water and a mixed solvent of two or more kinds selected from water and an aqueous solvent, the container is filled and the solvent is removed by heating and drying. The heating temperature and the apparatus are not limited, but in order to dry distill off all the solvents, the temperature is preferably 30 ° C. or higher, more preferably 50 ° C. or higher. It is preferable to use a hot air circulation type dryer as the drying device because the cosmetics are not locally exposed to high temperature.

The solid powder cosmetics of the present invention can be applied as foundations, eye shadows, cheeks and the like.
Since the solid powder cosmetic of the present invention is excellent in spreading and spreading at the time of application, it can be suitably used even in cosmetics applied over a wide range such as foundations.

Examples 1-9, Comparative Examples 1-3
Solid powder cosmetics having the compositions shown in Table 1 were produced, and the impact resistance, spreading and spreading on the skin at the time of application, moist feeling at the time of application, lack of dryness over time, and makeup durability were evaluated. The results are also shown in Table 1.

(Production method)
The cosmetic base material components having the compositions shown in Table 1 were mixed. A slurry was prepared by mixing 100 parts by mass of this mixture and 70 parts by mass of water. The slurry was filled in a gold plate, suction-pressed, and then placed together with the gold plate in a dryer at 70 ° C. to obtain a solid powder cosmetic. In addition, it was dried until the residual rate of water contained in solid powder cosmetics became 0%.

(1) Impact resistance:
Each solid powder cosmetic was housed in a compact case, dropped horizontally on a vinyl chloride plate from a height of 40 cm, and the number of times until a small wreck occurred on the surface of the cosmetic was evaluated.

(2) Spreading on the skin at the time of application, moist feeling at the time of application, lack of dryness over time, and long-lasting makeup:
When each solid powder cosmetic was applied by 5 specialized panelists, the moist feeling at the time of application, the lack of dryness over time, and the durability of the makeup were evaluated according to the following evaluation criteria, and the total score of the results of the 5 people. Was used as the evaluation result. The lack of dryness over time was evaluated 6 hours after application, and the makeup persistence was evaluated by comparing the states immediately after application and 3 hours after application.
The effect is high: 5 points.
You can feel the effect: 4 points.
The effect is slightly felt: 3 points.
Almost no effect: 2 points.
No effect: 1 point.

In addition, the spread and spread when each solid powder cosmetic was applied to the face was evaluated according to the following evaluation criteria, and the results of five people were discussed and used as the evaluation results.
Very good growth: ◎
Good growth and spread: 〇Slightly bad growth and spread: △
Poor spread: ×

Examples 10 to 15
A solid powder cosmetic having the composition shown in Table 2 was produced in the same manner as in Examples 1 to 9.
All of the obtained solid powder cosmetics were excellent in impact resistance, spread on the skin at the time of application, had a moist feeling at the time of application, did not have a dry feeling over time, and had good makeup durability.

Claims (9)

By mixing a cosmetic base material containing powder and oil with a single solvent or a mixed solvent of two or more kinds selected from water and an aqueous solvent to form a slurry, filling the container, and then removing the solvent. The obtained solid powder cosmetics include the following components (A), (B), (C) and (D):
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C,
(D) Contains a polyhydric alcohol, the mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 or more, and the components (B), (C) and (D) The total amount of the solid powder cosmetics is 6.6 to 27% by mass in the total amount of the cosmetic base material. The solid powder cosmetic according to claim 1, wherein the mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 to 10. The solid powder cosmetic according to claim 1 or 2, wherein the mass ratio (D) / (C) of the component (D) to the component (C) is 0.01 to 10. The solid powder cosmetic according to any one of claims 1 to 3, wherein the component (A) contains a hydrophobic powder. The solid powder cosmetic according to any one of claims 1 to 4, wherein the component (C) contains a water-holding oil agent capable of holding water equal to or more than its own weight. The solid powder cosmetic according to any one of claims 1 to 5, wherein the component (B) has a viscosity of less than 500 mPa · s at 20 ° C. The solid powder cosmetic according to any one of claims 1 to 6, wherein the component (B) contains a hydrocarbon oil. The following components (A), (B), (C) and (D):
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C. 5 to 15% by mass,
(D) Contains a polyhydric alcohol, the mass ratio (C) / (B) of the component (C) to the component (B) is 0.3 or more, and the components (B), (C) and (D) Solid powder cosmetics having a total amount of 6.6 to 27% by mass. Select from a cosmetic base material prepared by mixing an oil agent containing the components (B), (C) and (D) having the following composition and a powder containing the following component (A), water and an aqueous solvent. A method for producing a solid powder cosmetic, which comprises mixing a single solvent or a mixed solvent of two or more kinds to form a slurry, filling it in a container, and then removing the solvent.
(A) Powder,
(B) Liquid oil at 25 ° C,
(C) Semi-solid oil at 25 ° C,
(D) The mass ratio (C) / (B) of the component (C) to the polyhydric alcohol component (B) is 0.3 or more.
The total amount of the components (B), (C) and (D) is 6.6 to 27% by mass in the total amount of the cosmetic base material.