JP6937408B2 - Solid powder cosmetics - Google Patents

Description

The present invention relates to a solid powder cosmetic.

The powder used in cosmetics is subjected to various surface treatments in order to improve dispersibility and usability. For example, Patent Document 1 describes a powder that can be used for cosmetics, a surface treatment agent coating layer that is solid at a specific room temperature and is formed on at least a part of the particle surface thereof, and a liquid at a specific room temperature. A surface treatment powder containing a surface treatment agent coating layer in the form of a surface treatment agent is described.

Japanese Unexamined Patent Publication No. 2001-72527

Although the surface-treated powder as described above has excellent dispersibility and the like, when a cosmetic containing the above-mentioned surface-treated powder is applied to the skin, the powdery feeling and bulkiness are conspicuous, and there is a problem in the finish.

By combining a specific surface-treated plate-like powder and a specific ester oil, the present inventor improves the familiarity with the skin, eliminates the powdery feeling and whitening, and gives a dull, bare-skinned finish. It was found that a solid powder cosmetic that realizes the above can be obtained.

In the present invention, the following components (A) and (B):
(A) The following components (a), (b) and (c);
(A) One or more UV scatterers selected from titanium oxide and zinc oxide having an average particle size of 0.1 to 1 μm.
(B) Iron oxide,
(C) Plate-shaped composite powder having an average particle size of 0.5 to 200 μm coated with one or more selected from amino acids and derivatives thereof, 1 to 50% by mass,
(B) Ester of hydrogenated castor oil and / or castor oil and higher fatty acid having 10 to 22 carbon atoms 0.01 to 5% by mass
A solid powder cosmetic containing.

The solid powder cosmetic of the present invention does not have a squeaky feeling at the time of application, and can finish the skin after application with no powdery feeling or whitening, and without dullness. In addition, the skin without dullness lasts.

The plate-shaped composite powder of the component (A) used in the present invention is obtained by coating the surface of the plate-shaped powder serving as the mother powder with the components (a), (b) and (c). , The coating layer of these components (a), (b) and (c) is provided on at least a part of the surface of the plate-like powder.
The ultraviolet scattering agent of the component (a) is selected from titanium oxide and zinc oxide, and titanium oxide is particularly preferable, and the average particle size is 0.1 to 1 μm from the viewpoint of giving a natural skin color when applied. , 0.2-0.5 μm is preferable.
(A) The content of the ultraviolet scattering agent is preferably 15 to 300 parts by mass with respect to 100 parts by mass of the plate-shaped powder as the mother powder from the viewpoint of giving a natural skin color when applied. 75 to 250 parts by mass is more preferable, and 130 to 230 parts by mass is further preferable.

As the iron oxide of the component (b), yellow iron oxide, red iron oxide, and black iron oxide are preferable.
The content of (b) iron oxide is preferably 1 to 100 parts by mass with respect to 100 parts by mass of the plate-like powder as the mother powder from the viewpoint of giving a natural skin color when applied. ~ 75 parts by mass is more preferable.

Examples of the amino acid of the component (c) include proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, glutamic acid, etc., and glutamic acid is used from the viewpoint of powder dispersibility and adhesion to the skin. preferable.
Examples of derivatives of these amino acids include acylated amino acids. Of these, acylated amino acids are preferable, and fatty acids constituting the acyl group of the acylated amino acids are preferably fatty acids having 1 to 23 carbon atoms, more preferably fatty acids having 8 to 20 carbon atoms, and among them, lauroyl aspartic acid. Lauroyl lysine, lauroyl glutamate, stearoyl glutamic acid, and cocoyl glutamic acid are more preferable, and stearoyl glutamic acid is even more preferable.

(C) The content of the amino acid and its derivative is 1 to 30 parts by mass with respect to 100 parts by mass of the plate-shaped powder as the mother powder from the viewpoint of the dispersibility of the powder and the adhesion to the skin. Is preferable, 2 to 15 parts by mass is more preferable, and 3 to 7 parts by mass is further preferable.
Further, the mass ratios of the components (a), (b) and (c) coated on the plate-shaped powder to be the mother powder are (a): (b) from the viewpoint of fit to the skin and usability. ): (C) = 59 to 99: 0.1 to 40: 0.1 to 30 is preferable.

The surface of the plate-shaped powder serving as the mother powder of the component (A) may be coated with other components together with the components (a), (b) and (c). Examples of such a component include fatty acids or metal salts thereof, silane derivatives and the like.
Examples of the fatty acid include fatty acids having 12 to 26 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, and bechenic acid. Examples of the metal salt of the fatty acid include metal salts of the fatty acids such as calcium, magnesium and aluminum. Specifically, aluminum dimyristate and magnesium stearate are preferable, and aluminum dimyristate is more preferable.
Examples of the silane derivative include alkyltrialkoxysilanes, which preferably have a linear or branched alkyl group having 6 to 30 carbon atoms and an alkoxy group having 1 to 4 carbon atoms. More specifically, octyltriethoxysilane, octyltrimethoxysilane and the like are preferable.

From the viewpoint of powder dispersibility, the fatty acid content is preferably 1 to 30 parts by mass, more preferably 2 to 20 parts by mass with respect to 100 parts by mass of the plate-like powder as the mother powder. 3 to 8 parts by mass is more preferable.
From the viewpoint of powder dispersibility, the content of the fatty acid metal salt is preferably 1 to 30 parts by mass, preferably 2 to 20 parts by mass with respect to 100 parts by mass of the plate-shaped powder as the mother powder. More preferably, 3 to 8 parts by mass is further preferable.
From the viewpoint of powder dispersibility, the content of the silane derivative is preferably 1 to 30 parts by mass, more preferably 2 to 20 parts by mass with respect to 100 parts by mass of the plate-like powder as the mother powder. It is preferable, and 3 to 8 parts by mass is more preferable.
In the present invention, the mass ratio (c) / (fatty acid) of the component (c) to the fatty acid is preferably 0.2 to 2 and more preferably 0.3 to 1 from the viewpoint of fit to the skin and usability. ..
In the present invention, the mass ratio (c) / (fatty acid metal salt) of the component (c) to the fatty acid metal salt is preferably 0.2 to 2 and 0.3 to 2 from the viewpoint of fit to the skin and usability. 1 is more preferable.
In the present invention, the mass ratio (c) / (silane derivative) of the component (c) to the silane derivative is preferably 0.2 to 2 and 0.3 to 1 from the viewpoint of fit to the skin and usability. More preferred.

The plate-shaped composite powder of the component (A) suppresses the whiteness after application and realizes a natural finish with a tint. Therefore, the fatty acid together with the components (a), (b) and (c) Alternatively, the surface is preferably coated with a metal salt thereof and a silane derivative, and more preferably the surface is coated with titanium oxide, iron oxide, an acylated amino acid, a fatty acid metal salt and an alkyltrialkoxysilane. , Iron oxide, stearoyl glutamate 2Na, aluminum dimyristate and octylriethoxysilane are more preferred.

In the component (A), the plate-shaped powder to be the mother powder whose surface is coated may be any one usually used for cosmetics, for example, talc, mica, silicic acid, magnesium silicate. , Silica, talcite, kaolin, bismuth oxychloride, zinc oxide, cerium oxide, boron nitride, lauroyl lysine, calcium sulfate, barium sulfate, magnesium sulfate, alumina, etc. Therefore, talc is preferable.

The plate-shaped powder to be the mother powder preferably has an average particle size of 0.5 to 200 μm and an aspect ratio of 5 to 100 from the viewpoint of fit to the skin and usability.

As a method of coating the plate-shaped composite powder with the components (a), (b) and (c), a usual method can be used. For example, when talc is surface-treated as a plate-like powder to be a mother powder with (a) titanium oxide, (b) iron oxide, (c) sodium stearoyl glutamate, aluminum dimyristate and octyltriethoxysilane, the talc Titanium oxide, iron oxide, sodium stearoyl glutamate, potassium myristate and octyltriethoxysilane are added to water and mixed to disperse the pigment, and aluminum chloride is further added, stirred and mixed, and then dehydrated, dried and pulverized. By doing so, a plate-shaped composite powder can be obtained.

As described above, the plate-shaped composite powder coated with the components (a), (b) and (c) has an average particle size of 0.5 to 200 μm from the viewpoint of fit to the skin and usability. It is preferably 2 to 100 μm, more preferably 4 to 50 μm, and even more preferably 5 to 30 μm.
The aspect ratio of the plate-shaped composite powder is preferably 5 or more, more preferably 10 or more, more preferably 100 or less, and even more preferably 50 or less, from the viewpoint of fit to the skin and usability. The aspect ratio of the plate-shaped composite powder of the component (A) is preferably 5 to 100, more preferably 10 to 50.

In the present invention, the average particle size was determined by repeatedly measuring the volume average of 20 arbitrary particles in an arbitrary field of view in a transmission electron micrograph. The arithmetic mean of the major axis and the minor axis for the oval particles was regarded as the particle size.
In addition, the average aspect ratio was obtained by calculating the average thickness by the arithmetic mean of all the particles whose plate thickness in the same field of view of the transmission electron micrograph was the same, and rounding off to the nearest whole number as the average particle size / average thickness.
In the present invention, the plate-shaped composite powder coated on the surface of the component (A) preferably does not have brilliance from the viewpoint of obtaining a natural finish with a feeling of bare skin.

As the component (A), one type or two or more types can be used, and the content thereof is 1% by mass or more in the total composition from the viewpoint of obtaining a natural finish with smoothness at the time of application and a feeling of bare skin. 5, 5% by mass or more is preferable, 20% by mass or more is more preferable, 50% by mass or less, 45% by mass or less is preferable, and 40% by mass or less is more preferable. The content of the component (A) is 1 to 50% by mass, preferably 5 to 45% by mass, and more preferably 20 to 40% by mass in the total composition.

Of the component (B), hydrogenated castor oil is obtained by hydrogenating castor oil.
Further, in the ester of castor oil and a higher fatty acid having 10 to 22 carbon atoms, the higher fatty acid is a linear or branched saturated or unsaturated fatty acid having 10 to 22 carbon atoms and has 14 to 20 carbon atoms. Those are preferable. Specific examples thereof include monostearic acid hydrogenated castor oil, monoisostearic acid hydrogenated castor oil, triisostearic acid hydrogenated castor oil, etc., which do not give a feeling of powdery finish after application and do not dull. Branched fatty acid hydrogenated castor oil having 10 to 22 carbon atoms such as monoisostearic acid hydrogenated castor oil and triisostearic acid hydrogenated castor oil is preferable from the viewpoint of finishing the skin with a feeling of bare skin.
As the hydrogenated castor oil, castor oil (manufactured by TK Wax) and the like are used, as the monoisostearic acid hydrogenated castor oil, HC-BK (manufactured by National Mimatsu Co., Ltd.), and as the triisostearic acid hydrogenated castor oil. , CIS-KB (manufactured by National Mimatsu Co., Ltd.), Risocasta MIS (manufactured by higher alcohol industry) and the like can be used.

As the component (B), one type or two or more types can be used, and the content thereof is the total composition from the viewpoint of finishing the skin with a feeling of bare skin without dullness without feeling the powdery feeling of the finished product after application. It is 0.01% by mass or more, preferably 0.02% by mass or more, more preferably 0.05% by mass or more, more preferably 5% by mass or less, preferably 3% by mass or less, and more preferably 2% by mass or less. preferable. The content of the component (B) is 0.01 to 5% by mass, preferably 0.02 to 3% by mass, and more preferably 0.05 to 2% by mass in the total composition.

In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) suppresses the squeaky feeling at the time of coating, suppresses the powdery feeling and whitening of the finished product after coating, and makes the dullness. From the viewpoint of finishing the skin with no bare skin feeling, 4 or more is preferable, 10 or more is more preferable, 20 or more is further preferable, 1000 or less is more preferable, 700 or less is more preferable, and 350 or less is further preferable. The mass ratio (A) / (B) of the component (A) to the component (B) is preferably 4 to 1000, more preferably 10 to 700, and even more preferably 20 to 350.

The solid powder cosmetic of the present invention can further contain a plate-like powder other than the component (C) (A), suppresses a squeaky feeling at the time of application, and gives a powdery feeling or whiteness after application. Floating can be suppressed.
Examples of such plate-like powders are those used in ordinary cosmetics, and examples thereof include barium sulfate, alumina, zinc oxide, boron nitride, and laurolyl lysine. Of these, plate-shaped zinc oxide, boron nitride, and laurolyl lysine are preferable.

The plate-like powder of the component (C) can be used as it is, but if necessary, the surface of a fluorine compound, a silicone compound, a metal soap, an amino acid compound, a lecithin, an alkylsilane, an oil agent, an organic titanate, etc. Depending on the treatment agent, a water-repellent and / or oil-repellent treatment can also be used. These processes can be performed by a usual method.

The plate-like powder of the component (C) preferably has an average particle size of 0.1 to 100 μm, more preferably 0.2 to 50 μm, and even more preferably 1 to 30 μm, from the viewpoint of suppressing a squeaky feeling at the time of coating.
The aspect ratio is preferably 5 or more, more preferably 10 or more, preferably 100 or less, and more preferably 60 or less from the viewpoint of fit to the skin and usability. The aspect ratio of the component (C) is preferably 5 to 100, more preferably 10 to 60.

As the component (C), one type or two or more types can be used, and the content thereof suppresses a squeaky feeling at the time of application, suppresses a powdery feeling and whitening of the finished product after application, and bare skin without dullness. From the viewpoint of finishing the skin with a feeling, 0.1% by mass or more is preferable, 1% by mass or more is more preferable, 2 or more is more preferable, 40% by mass or less is preferable, and 30% by mass or less is more preferable in the whole composition. , 20 or less is more preferable. The content of the component (C) is preferably 0.1 to 40% by mass, more preferably 1 to 30% by mass, and even more preferably 2 to 20% by mass in the total composition.

In the present invention, the mass ratio (C) / (B) of the component (C) to the component (B) suppresses the squeaky feeling at the time of coating, suppresses the powdery feeling and whitening of the finished product after coating, and makes the dullness. From the viewpoint of finishing the skin with no bare skin feeling, 0.5 or more is preferable, 2 or more is more preferable, 5 or more is more preferable, 600 or less is more preferable, 200 or less is more preferable, and 80 or less is further preferable. The mass ratio (C) / (B) of the component (C) to the component (B) is preferably 0.5 to 600, more preferably 2 to 200, and even more preferably 5 to 80.

The solid powder cosmetic of the present invention can further contain powders other than the components (A) and (C). As the powder other than the components (A) and (C), if it is a powder used for ordinary cosmetics, it has a spherical, plate-like, needle-like shape, smoke atom-like, fine particles, pigment grade or the like. It can be used without particular limitation depending on the particle structure such as diameter, porosity and non-porous. Specifically, red iron oxide, iron hydroxide, iron titanate, yellow iron oxide, black iron oxide, carbon black, dark blue, ultramarine blue, manganese violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt oxide, cobalt titanate, etc. Colored pigments; titanium oxide, zinc oxide, zirconium oxide, magnesium oxide, cerium oxide, aluminum oxide, calcium sulfate, magnesium sulfate, magnesium carbonate, calcium carbonate, talc, mica, kaolin, sericite, silicic acid, silicic anhydride , Aluminum silicate, Magnesium silicate, Aluminum magnesium silicate, Calcium silicate, Barium silicate, Strontium silicate, Metal tungsate, Hydroxyapatite, Vermiculite, Bentnite, Montmorillonite, Hectrite, Smectite, Zeolite, Ceramic powder, White or extender pigments such as dicalcium phosphate, silica, aluminum hydroxide, synthetic sericite; fish scale foil, titanium oxide-coated mica (titanium mica), bismuth oxychloride, bismuth oxychloride coated with titanium oxide, talc coated with titanium oxide, oxidation Titanium-coated colored mica, titanium oxide-coated mica, fine-grained titanium oxide-coated mica titanium, fine-grained zinc oxide-coated mica titanium, organic pigment-treated mica titanium, low-order titanium oxide-coated mica, mica, titanium oxide-coated synthetic mica, titanium oxide-coated Plate silica, hollow plate titanium oxide, iron oxide coated mica, plate iron oxide (MIO), aluminum flakes, stainless flakes, titanium oxide coated plate alumina, pearl shell, gold foil, gold vapor deposition resin film, metal vapor deposition resin film Pearl pigments (brilliant powders) such as: Organopolysiloxane elastomers, polymethylsilsesquioxane, nylon powders, silk powders, urethane powders, cellulose powders and other organic powders; Red No. 104, Red No. 102, etc. Examples thereof include organic tar-based pigments such as Red No. 226, Red No. 201, Red No. 202, Yellow No. 4, and Black No. 401, organic dyes, and lake products thereof, and one or more of these can be used.

The powders other than the components (A) and (C) used in the present invention can be used as they are, or if necessary, one or more of these powders can be hydrophobized. .. The hydrophobizing treatment is not limited as long as it is a treatment applied to ordinary cosmetic powders, and is not limited to fluorine compounds, silicone compounds, metal soaps, amino acid compounds, lecithin, alkylsilanes, oils, organic titanates, etc. Dry treatment, wet treatment, etc. may be performed using the surface treatment agent of.
Specific examples of the surface treatment agent include fluorine 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 soaps; amino acid compounds such as proline, hydroxyproline, alanine, glycine, sarcosin, glutamate, aspartic acid, lysine and derivatives thereof; lecithin, hydrogenated lecithin; methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane , Alkoxysilanes such as octyltrimethoxysilane and octylriethoxysilane; oils such as polyisobutylene, waxes and fats and oils; organic titanates such as isopropyltitanium triisostearate and the like.

Further, as the powder other than the components (A) and (C) used in the present invention, one or more of these powders may be hydrophilized. The hydrophilization 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 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 , Methylhydroxypropyl starch and other starch-based polymers; methylcellulose, ethylcellulose, methylhydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder Polymers: Arginic 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 polymer; Examples thereof include acrylic polymers such as sodium polyacrylate, polyethyl acrylate and polyacrylic acid amide, and inorganic silicic acid compounds such as silica.

The solid powder cosmetic of the present invention can further contain a liquid oil agent at 25 ° C., is excellent in moldability, powder removal, and usability, and can prevent whitening of the skin. Here, the liquid at 25 ° C. means that the viscosity at 25 ° C. is 10,000 mPa · s or less. Viscosity is determined by B-type viscometer, rotor No. Measured at 4, 12 rpm, 1 minute.
The oil may be any one used in ordinary cosmetics, and is, for example, a linear or branched hydrocarbon oil such as liquid paraffin, light isoparaffin, liquid isoparaffin, squalane, or squalane; and vegetable oil such as jojoba oil and olive oil. Animal oils such as liquid lanolin; fatty acid esters, polyvalent carboxylic acid esters, fatty acid polyvalent alcohol esters, hydroxy fatty acid esters, and others, octyl methoxysilicate, octyl paradimethylaminobenzoate, dl-α-tocopherol, dl nicotinate Ester oils such as -α-tocopherol; silicone oils such as dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane; fluoropolyether, perfluoroalkyl ether silicone, etc. Fluoroxane and the like.

As the oil agent liquid at 25 ° C., one type or two or more types can be used, and the content is in the total composition from the viewpoint of improving moldability, removing powder, excellent usability, and preventing whitening of the skin. 1% by mass or more is preferable, 2% by mass or more is more preferable, 3% by mass or more is further preferable, 15% by mass or less is more preferable, 10% by mass or less is more preferable, and 8% by mass or less is further preferable. The content of the oil agent liquid at 25 ° C. is preferably 1 to 15% by mass, more preferably 2 to 10% by mass, and even more preferably 3 to 8% by mass in the total composition.

In addition to the above-mentioned components, the solid powder cosmetics of the present invention include components used in ordinary cosmetics, such as oily components other than the above, surfactants, preservatives, antioxidants, pigments, thickeners, and pH. It can contain a regulator, a fragrance, an ultraviolet absorber, a moisturizer, a blood circulation promoter, a cold sensation agent, an antiperspirant, a bactericide, a skin activator and the like.

The solid powder cosmetics of the present invention can be produced according to a usual method, for example, by mixing the ingredients, filling the container and pressing the mixture.
The solid powder cosmetics of the present invention are suitable as, for example, makeup cosmetics such as foundations, pressed powders, cheeks, and eye shadows.
With respect to the embodiments described above, the present invention further discloses the following compositions.

<1> The following components (A) and (B):
(A) The following components (a), (b) and (c);
(A) One or more UV scatterers selected from titanium oxide and zinc oxide having an average particle size of 0.1 to 1 μm.
(B) Iron oxide,
(C) Plate-shaped composite powder having an average particle size of 0.5 to 200 μm coated with one or more selected from amino acids and derivatives thereof, 1 to 50% by mass,
(B) Ester of hydrogenated castor oil and / or castor oil and higher fatty acid having 10 to 22 carbon atoms 0.01 to 5% by mass
A solid powder cosmetic containing.

<2> The solid powder cosmetic according to <1> above, wherein the ultraviolet scattering agent (a) of the component (A) is preferably titanium oxide.
<3> The solid powder cosmetic according to <1> or <2> above, wherein the (a) ultraviolet scattering agent of the component (A) preferably has an average particle size of 0.2 to 0.5 μm.
<4> In the component (A), the content of the (a) ultraviolet scattering agent is preferably 15 to 300 parts by mass with respect to 100 parts by mass of the plate-shaped powder to be the mother powder, and is 75 to 300 parts by mass. The solid powder cosmetic according to any one of <1> to <3>, wherein 250 parts by mass is more preferable, and 130 to 230 parts by mass is further preferable.
<5> In the component (A), the content of (b) iron oxide is preferably 1 to 100 parts by mass with respect to 100 parts by mass of the plate-shaped powder to be the mother powder, and is 10 to 75 parts by mass. The solid powder cosmetic according to any one of <1> to <4>, wherein the mass portion is more preferable.

<6> The amino acid (c) of the component (A) is preferably proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, and glutamic acid, and glutamic acid is more preferable. The solid powder cosmetic according to any one of.
<7> The amino acid derivative (c) of the component (A) is preferably an acylated amino acid, and the fatty acid constituting the acyl group of the acylated amino acid is preferably a fatty acid having 1 to 23 carbon atoms and 8 carbon atoms. The solid powder according to any one of <1> to <6>, wherein the fatty acid of ~ 20 is more preferable, lauroyl aspartic acid, lauroyl lysine, lauroyl glutamic acid, stearoyl glutamic acid, cocoyl glutamic acid is more preferable, and stearoyl glutamic acid is more preferable. Cosmetics.
<8> In the component (A), the content of the amino acid (c) and its derivative is preferably 1 to 30 parts by mass with respect to 100 parts by mass of the plate-shaped powder to be the mother powder, and 2 The solid powder cosmetic according to any one of <1> to <7>, wherein ~ 15 parts by mass is more preferable, and 3 to 7 parts by mass is further preferable.

<9> In the component (A), the mass ratio of the components (a), (b) and (c) coated on the plate-like powder to be the mother powder is preferably (a) :( b) :. (C) = 59 to 99: 0.1 to 40: 0.1 to 30, preferably the solid powder cosmetic according to any one of <1> to <8>.
<10> The plate-like powder serving as the mother powder of the component (A) is preferably surface-coated with components (a), (b) and (c) together with components other than these, and is a fatty acid or. The solid powder cosmetic according to any one of <1> to <9>, which is more preferably coated with the metal salt and the silane derivative.

<11> The fatty acid is preferably a fatty acid having 12 to 26 carbon atoms, more preferably lauric acid, myristic acid, palmitic acid, stearic acid, and behenic acid, and the fatty acid content is preferably mother powder. The solid powder cosmetic according to <10>, wherein the amount is 1 to 30 parts by mass, more preferably 2 to 20 parts by mass, and further preferably 3 to 8 parts by mass with respect to 100 parts by mass of the plate-shaped powder to be a body. Fee.
<12> The fatty acid metal salt is preferably a calcium, magnesium, or aluminum salt of a fatty acid having 12 to 26 carbon atoms, more preferably aluminum dimyristate or magnesium stearate, further preferably aluminum dimyristate, and a fatty acid. The content of the metal salt is preferably 1 to 30 parts by mass, more preferably 2 to 20 parts by mass, and 3 to 8 parts by mass with respect to 100 parts by mass of the plate-shaped powder as the mother powder. The solid powder cosmetic according to <10> or <11>, which is more preferable.
<13> The silane derivative is preferably an alkyltrialkoxysilane, more preferably having a linear or branched alkyl group having 6 to 30 carbon atoms and an alkoxy group having 1 to 4 carbon atoms. Alkoxysilane and octyltrimethoxysilane are more preferable, and the content of the silane derivative is preferably 1 to 30 parts by mass and 2 to 20 parts by mass with respect to 100 parts by mass of the plate-like powder as the mother powder. The solid powder cosmetic according to any one of <10> to <12>, wherein the portion is more preferable, and 3 to 8 parts by mass is further preferable.

<14> The mass ratio (c) / (fatty acid) of the component (c) to the fatty acid is preferably 0.2 to 2, and more preferably 0.3 to 1. The solid powder cosmetic according to any one.
<15> The mass ratio (c) / (fatty acid metal salt) of the component (c) to the fatty acid metal salt is preferably 0.2 to 2, and more preferably 0.3 to 1. The solid powder cosmetic according to any one of <14>.
<16> The mass ratio (c) / (silane derivative) of the component (c) to the silane derivative is preferably 0.2 to 2, and more preferably 0.3 to 1. > The solid powder cosmetic according to any one of 1.
<17> The plate-shaped composite powder of the component (A) is preferably one whose surface is coated with a fatty acid or a metal salt thereof and a silane derivative together with the components (a), (b) and (c). The surface is more preferably coated with titanium oxide, iron oxide, acylated amino acids, fatty acid metal salts and alkyltrialkoxysilanes, with titanium oxide, iron oxide, stearoyl glutamate 2Na, aluminum dimyristate and octyltriethoxy. The solid powder cosmetic according to any one of <1> to <16>, wherein it is more preferable that the surface is coated with silane.

<18> In the component (A), the plate-like powder serving as the mother powder whose surface is coated is preferably talc, mica, silicic acid, magnesium silicate, silica, sericite, kaolin, bismuth oxychloride, and the like. The solid powder cosmetic according to any one of <1> to <17>, which is zinc oxide, cerium oxide, boron nitride, lauroyl lysine, calcium sulfate, barium sulfate, magnesium sulfate, and alumina, more preferably talc.
<19> The plate-shaped composite powder of the component (A) preferably has an average particle size of 2 to 100 μm, more preferably 4 to 50 μm, and even more preferably 5 to 30 μm. The solid powder cosmetic according to any one of.
<20> The solid mold according to any one of <1> to <19>, wherein the plate-shaped composite powder of the component (A) preferably has an aspect ratio of 5 to 100 and more preferably 10 to 50. Powder cosmetics.
<21> The content of the component (A) is preferably 5% by mass or more, more preferably 20% by mass or more, preferably 45% by mass or less, and more preferably 40% by mass or less in the total composition. The solid powder cosmetic according to any one of <1> to <20>.

<22> The ester of the castor oil of the component (B) and the higher fatty acid having 10 to 22 carbon atoms is preferably an ester of the castor oil and the higher fatty acid having 14 to 20 carbon atoms, and is hydrogenated with monostearic acid. Castor oil, monoisostearic acid hydrogenated castor oil, triisostearic acid hydrogenated castor oil are more preferable, and monoisostearic acid hydrogenated castor oil and triisostearic acid hydrogenated castor oil are more preferable. The solid powder cosmetic according to 1.
<23> The content of the component (B) is preferably 0.02% by mass or more, more preferably 0.05% by mass or more, preferably 3% by mass or less, and 2% by mass or less in the total composition. The solid powder cosmetic according to any one of <1> to <22>, which is more preferable.
<24> The mass ratio (A) / (B) of the component (A) to the component (B) is preferably 4 or more, more preferably 10 or more, further preferably 20 or more, and preferably 1000 or less. The solid powder cosmetic according to any one of <1> to <23>, wherein 700 or less is more preferable, and 350 or less is further preferable.

<25> Further, a plate-like powder other than the component (C) (A) can be contained, preferably barium sulfate, alumina, zinc oxide, boron nitride, and laurolyl lysine, and more preferably. The solid powder cosmetic according to any one of <1> to <24>, which contains plate-shaped zinc oxide, boron nitride, and laurolyl lysine.
<26> The content of the component (C) is preferably 0.1% by mass or more, more preferably 1% by mass or more, further preferably 2 or more, and preferably 40% by mass or less in the total composition. The solid powder cosmetic according to <25>, wherein 30% by mass or less is more preferable, and 20 or less is further preferable.
<27> The mass ratio (C) / (B) of the component (C) to the component (B) is preferably 0.5 or more, more preferably 2 or more, further preferably 5 or more, and 600 or less. The solid powder cosmetic according to <25> or <26>, preferably 200 or less, more preferably 80 or less.

Production Example 1 (Production of composite powder 1)
Titanium oxide (manufactured by Teika, average particle size 0.27 μm) 200 parts by mass, iron oxide 25 parts by mass, potassium myristate 5 parts by mass, stearoyl, relative to 100 parts by mass of talc (manufactured by Asada Flour Milling Co., Ltd., JA-46R) Add 3.5 parts by mass of 2Na glutamate and 5 parts by mass of octylriethoxysilane to water and mix them to disperse the pigment. Further, an appropriate amount of aluminum chloride was added, stirred and mixed, and then dehydrated, dried and pulverized to obtain a composite powder 1.
The composite powder 1 did not have brilliance.

Production Example 2 (Production of composite powder 2)
Titanium oxide (manufactured by Teika, average particle size 0.27 μm) 177 parts by mass, iron oxide 48 parts by mass, potassium myristate 5 parts by mass, stearoyl, relative to 100 parts by mass of talc (manufactured by Asada Flour Milling Co., Ltd., JA-46R) Add 3.5 parts by mass of 2Na glutamate and 5 parts by mass of octylriethoxysilane to water and mix them to disperse the pigment. Further, an appropriate amount of aluminum chloride was added, stirred and mixed, and then dehydrated, dried and pulverized to obtain a composite powder 2.
The composite powder 2 did not have brilliance.

Production Example 3 (Production of flaky zinc oxide)
1.6 × 10 ^-1 mol of zinc sulfate, 3.8 × 10 ^{−2 mol of sodium sulfate and 1.6 × 10 -4} mol of ferrous sulfate as salts of trace elements, 315 mL of 5 × 10 ⁻² mol sulfuric acid aqueous solution Dissolved in. Next, this solution was mixed with a homomixer to 6000 r. p. m. 230 mL of a 2N sodium hydroxide aqueous solution was added in 15 seconds (pH = 12.8) to generate a precipitate, and then stirring was continued at room temperature (25 ° C.) for 10 minutes. Then, it was aged at 100 ° C. for 90 minutes, filtered, washed with water, and dried at 230 ° C. for about 10 hours to obtain flaky zinc oxide particles. The average particle size of the obtained particles was 0.25 μm, and the average aspect ratio was 13.

Examples 1-9, Comparative Examples 1-3
A solid powder cosmetic with the composition shown in Table 1 is manufactured, and there is no squeaky feeling at the time of application, a bare skin feeling of the finish immediately after application, no powdery feeling of the finish immediately after application, and no whitening of the finish immediately after application. And the lack of dullness after 4 hours of application was evaluated. The results are also shown in Table 1.

(Production method)
After mixing and pulverizing all the powder components including the component (A), the oil phase component containing the component (B) was added and mixed, and the obtained mixture was further pulverized by a pulverizer. The pulverized product obtained here was filled in a container and molded with a filling amount of 9.0 g and a molding pressure of 1500 kg to obtain a powder cosmetic (powder foundation).

(Evaluation method)
(1) No squeaky feeling when applied:
5; There is no squeaky feeling at the time of application.
4; There is no squeaky feeling at the time of application.
3; There is almost no squeaky feeling at the time of application.
2; There is a slight squeaky feeling when applied.
1; There is a squeaky feeling at the time of application.

(2) Feeling of bare skin immediately after application:
5; There is a considerable feeling of bare skin in the finish after application.
4; There is a feeling of bare skin in the finish after application.
3; There is a slight feeling of bare skin in the finish after application.
2; There is not much bare skin feeling in the finish after application.
1; There is no feeling of bare skin in the finish after application.

(3) No powdery finish immediately after application:
5; There is no powdery feeling on the skin after application.
4; There is no powdery feeling on the skin after application.
3; There is almost no powdery feeling on the skin after application.
2; There is a slight powdery feeling on the skin after application.
1; There is a powdery feeling on the skin after application.

(4) No whitening of the finish immediately after application:
5; No whitening is seen on the skin after application.
4; No whitening is seen on the skin after application.
3; Almost no whitening is seen on the skin after application.
2; Some whitening is seen on the skin after application.
1; Whitening is seen on the skin after application.

(5) No dullness after 4 hours of application:
5; No dullness after 4 hours.
4; No dullness after 4 hours.
3; There is almost no dullness after 4 hours.
2; There is a slight dullness after 4 hours.
1; There is a dull feeling after 4 hours.

Claims (8)

The following components (A) and (B):
(A) The following components (a), (b) and (c);
(A) 130 to 230 parts by mass with respect to 100 parts by mass of talc as a mother powder of one or more kinds of ultraviolet scattering agents selected from titanium oxide and zinc oxide having an average particle diameter of 0.1 to 1 μm.
(B) 10 to 75 parts by mass with respect to 100 parts by mass of talc as the iron oxide base powder.
(C) An average particle diameter of 5 to 5 parts by mass coated with 3 to 7 parts by mass with respect to 100 parts by mass of talc as a mother powder of one or more kinds selected from amino acids and acylated amino acids having 8 to 20 carbon atoms. 30 μm plate-shaped composite powder 1 to 50% by mass,
(B) Ester of hydrogenated castor oil and / or castor oil and higher fatty acid having 10 to 22 carbon atoms 0.01 to 5% by mass
A solid powder cosmetic containing, and the mass ratio (A) / (B) of the component (A) to the component (B) is 10 to 1000. (A) ultraviolet scattering agent of component (A), solid powder cosmetic composition according to claim 1, wherein the titanium oxide. The mass ratio of the components (a), (b) and (c) coated on the talc to be the mother powder is (a) :( b) :( c) = 59 to 99: 0.1 to 40: 0. The solid powder cosmetic according to claim 1 or 2, which is 1 to 30. The solid powder makeup according to any one of claims 1 to 3 , wherein the composite powder of the component (A) is obtained by further coating the surface of talc, which is the mother powder, with a fatty acid or a metal salt thereof. Fee. The solid powder cosmetic according to any one of claims 1 to 4 , wherein the composite powder of the component (A) is further coated with octyltriethoxysilane on the surface of talc as a mother powder. .. Claim 1 that the component (A) is a plate-shaped composite powder in which the surface of talc, which is the mother powder, is coated with titanium oxide, iron oxide, stearoyl glutamate 2Na, aluminum dimyristate, and octyltriethoxysilane. The solid powder cosmetic according to any one of 5 to 5. Further, according to any one of claims 1 to 6 , the component (C) contains a plate-like powder selected from barium sulfate, alumina, zinc oxide, boron silicate and lauroyl lysine other than the component (A). Solid powder cosmetics. The solid powder cosmetic according to claim 7 , wherein the mass ratio (C) / (B) of the component (C) to the component (B) is 0.5 to 600.