JP2014028785A - Powder cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder cosmetic which lightly spreads when applied, prevents burden feeling (uncomfortable feeling on a skin) of a cosmetic film after applied, and excellently prevents a makeup deterioration such as greasiness, color change and localization of the cosmetic film with time.SOLUTION: A powder cosmetic contains the following components (a) and (b): (a) a powder processed by an amino modified silicone; and (b) a flat cellulose powder.

Description

  The present invention contains a powder treated with amino-modified silicone and flat crystalline cellulose, so that the spread at the time of application is light and the burden of the cosmetic film after application (uncomfortable feeling on the skin) is suppressed. In addition, the present invention relates to a powder cosmetic that is excellent in the effect of suppressing makeup collapse such as oil glow, color change, and localization of the cosmetic film over time.

The powder cosmetic is a dosage form used for makeup cosmetics such as foundation, white powder, teak, eye shadow, and eyebrow, body powder, and antiperspirant. In particular, in makeup cosmetics, the function of having a makeup that maintains the state immediately after applying makeup over time is a very important quality. With regard to makeup collapse, the phenomenon of soaking the makeup film by sweat or sebum secreted from the skin (so-called shine), or the phenomenon that the brightness decreases or the hue changes when the pigment is wet by sweat or sebum (so-called dullness) ), A phenomenon in which the cosmetic film is localized in wrinkles and pores due to the movement of facial expressions (so-called twisting or pore removal).
For these cosmetic break-ups, water resistance and adhesion are imparted by blending a surface treatment agent such as a fluorine compound or silicone resin with a method that suppresses shine by blending porous powder with a high oil absorption amount or pigment. Methods have been studied. (For example, see Patent Documents 1 and 2)

In recent years, an increasing number of consumers are concerned about the burden of applying makeup cosmetics to their skin. Causes of burden include the feeling of occlusion and discomfort due to cosmetics applied on the skin, the contraction feeling when it volatilizes when it contains volatile components, and the powder adsorbing sebum, sweat, etc. And dry feeling.
In powder cosmetics, since the powder is applied directly to the skin, discomfort and dryness often become a problem, and the conventional measures for improving makeup lasting often make these burdens worse. There were many.
For example, when a porous powder having a high oil absorption amount against makeup break-up as described above is blended, if the sebum adsorption is promoted and the dry feeling becomes more remarkable, or the adhesion to the skin is poor, In some cases, an oil film is formed and oiliness cannot be suppressed, or the method of physically improving the adhesion to the skin, such as a sticky oil or resin, tends to increase discomfort.
In addition, the powder treated with amino-modified silicone has both adhesion to the skin due to amino groups and water repellency derived from silicone, and is excellent in the effect of improving makeup durability. (For example, Patent Documents 3 and 4) However, the effect on the skin burden of the coating film was not so much.

JP-A-8-165219 Japanese Patent Publication No. 5-86984 Japanese Patent No. 4505211 WO2010 / 107010 pamphlet

As a method for suppressing such a feeling of burden, it is conceivable to mix a lightweight powder. For example, since cellulose powder is organic, it has a lower true specific gravity than inorganic powders such as talc and mica, and it is thought that the burden on the skin can be suppressed, but since cellulose has many hydroxyl groups in its molecule, Due to the bonding, the powders easily aggregated, and it was difficult to sufficiently exhibit the effect. For this reason, no method has been known that achieves both high makeup persistence and lack of skin burden on the cosmetic film.
Therefore, a powder cosmetic that suppresses the feeling of burden on the cosmetic film after application (uncomfortable feeling on the skin) and also has an effect of suppressing makeup collapse such as oil shine, color change, and localization of the cosmetic film over time. It was desired to get.

  In view of this situation, the present inventor has intensively studied, and as a result of containing a powder treated with amino-modified silicone and a flat cellulose powder, the electrostatic property between the hydroxyl group of cellulose and the amino group of amino-modified silicone is obtained. Interaction makes it possible to take advantage of the properties of flat cellulose powder that is easy to spread thinly and evenly on the skin, improving dispersibility on the skin, and feeling of burden on the cosmetic film after application (on the skin The present invention has been completed by discovering that a powder cosmetic can be obtained that is excellent in the effect of suppressing cosmetic breakdown such as oil shine, color change, and localization of the cosmetic film over time. It was.

That is, the present invention
(1) The following component (a) and component (b);
(A) Powder treated with amino-modified silicone (b) A powder cosmetic comprising a flat cellulose powder is provided.

  (2) The flat cellulose powder of the component (b) has an average particle diameter of 1 to 100 μm, an average thickness of 0.01 to 10 μm, and a flatness of 4 to 200. (1) The powder cosmetic described in (1) is provided.

  (3) The component (b) is a flat cellulose powder obtained by mechanically pulverizing a cellulosic material and a pulverization aid. (1) or (2) ) Is provided.

  (4) Further, the pulverization aid contains the flat cellulose powder of the component (b) which is an amphiphilic substance, and the powder cosmetic according to (3) is provided. .

  (5) A flat cellulose powder of component (b), wherein the amphiphile is one or more selected from the group consisting of phospholipids, ceramides, cholesterol or derivatives thereof and phytosterols or derivatives thereof The powder cosmetic as described in (4) above, which is contained.

  (6) The flat cellulose powder of the component (b) uses 0.1 to 12 parts by mass of an amphiphilic substance with respect to 100 parts by mass of the cellulosic substance. Or the powder cosmetics as described in (5) are provided.

  (7) The device according to any one of (3) to (6), wherein the mechanical pulverization treatment includes a flat cellulose powder of component (b) which is performed by a planetary ball mill. A powder cosmetic is provided.

  (8) The powder treated with the amino-modified silicone of the component (a) is contained in an amount of 1 to 90% by mass (hereinafter, simply referred to as “%”) in the total powder. The powder cosmetic according to any one of (7) is provided.

  (9) The powder treated with the amino-modified silicone of the component (a) is obtained by treating the amino-modified silicone with 0.1 to 10 parts by mass with respect to 100 parts by mass of the powder. The powder cosmetic according to any one of (1) to (8) is provided.

  (10) The powder cosmetic according to any one of (1) to (9), wherein the powder cosmetic is solid.

  The powder cosmetic composition of the present invention relates to a cosmetic composition that has a light stretch spread that suppresses a feeling of burden on the skin after application, and has an excellent makeup-holding effect that suppresses oil glow, color change, and localization of the cosmetic film over time. Is.

Hereinafter, the present invention will be described in detail.
In the present invention, the powder cosmetic contains powder as a main component, and if necessary, an oily component, an aqueous component, a surfactant component and the like are dispersed in the powder, Specific examples include a powdery product obtained by mixing and pulverizing a powder component and other cosmetic ingredients, and a cosmetic obtained by molding the powder component into a solid form, and may have any properties. Further, it may be in a state of being supported on a support such as paper. Although content of the powder in the powder cosmetics of this invention is not specifically limited, Generally it is preferable that it is 50-100 mass%.

  The powder treated with amino-modified silicone used as component (a) in the powder cosmetic of the present invention (hereinafter sometimes referred to as “amino-modified silicone-treated powder”) has an affinity for the skin of the cosmetic. Contained to improve the dispersibility of the flat cellulose powder as the component (b), suppress the burden on the skin with a light stretch, and improve the longevity of the makeup over time It is.

  The amino-modified silicone used to adjust this component (a) may be any silicone having an amino group or an ammonium group, and amino having all or part of the terminal hydroxyl groups blocked with methyl groups or the like. Either a modified silicone oil or an amodimethicone whose end is not blocked may be used. For example, preferable amino-modified silicones include those represented by the following general formula (1).

[Wherein, R represents a hydroxyl group, a hydrogen atom or R ¹ , R ¹ represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and X represents R ¹ , —Q—NH (CH _{2 N represents} NH ₂ , —OR ¹ or a hydroxyl group, Q represents a divalent hydrocarbon group having 1 to 8 carbon atoms, n represents a number of 1 to 5, p and q are 2 in terms of the number average. The number is from 2000 to 2000, preferably from 20 to 2000, and more preferably from 30 to 1000. ]

The amino equivalent of the amino-modified silicone is preferably 200 g / mol to 30,000 g / mol, more preferably 500 g / mol to 10,000 g / mol, and still more preferably 600 g / mol to 5000 g / mol.
Here, the amino equivalent means the mass of the siloxane skeleton per amino group or ammonium group. The notation unit g / mol is a value converted per 1 mol of amino group or ammonium group. Therefore, the smaller the amino equivalent value, the higher the ratio of amino groups or ammonium groups in the molecule.
Further, the viscosity of this material is preferably in the range of 100 to 3000 mm2 / s (25 ° C.) from the viewpoint that the powder is uniformly coated and improvement in powder dispersibility is obtained.

Specific examples of suitable commercially available amino-modified silicones include SF8451C (manufactured by Toray Dow Corning Silicone, viscosity 600 mm ² / s, amino equivalent 1700 g / mol), SF8452C (Toray Dow Corning Silicone) Manufactured, viscosity 700 mm ² / s, amino equivalent 6400 g / mol), SF8457C (manufactured by Toray Dow Corning Silicone, viscosity 1200 mm ² / s, amino equivalent 1800 g / mol), KF 8003 (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 1850 mm ²⁾ / S, amino equivalent 2000 g / mol), KF8004 (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 800 mm ² / s, amino equivalent 1500 g / mol), KF867S (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 1300 mm ² / s, amino equivalent 1700 g / mol) ), XF42 B8922 (Momentive Performance Materials Inc., viscosity 70000mm ² / s, amino equivalent weight 13000 g / mol) and amino-modified silicone oil such as, SM8704C (Dow Corning Toray Silicone Co., amino equivalent weight 1800 g / mol) such as Amodimethicone emulsion. (The viscosity is the value at 25 ° C. above.)

  The amino-modified silicone is preferably liquid at 25 ° C. and may be used in the form of an emulsion. This amino-modified silicone emulsion is prepared, for example, by mechanically mixing amino-modified silicone and a solvent at high shear, emulsifying amino-modified silicone with water and an emulsifier, or a combination thereof, or by emulsion polymerization. be able to.

  The treatment amount of the amino-modified silicone in the preparation of the amino-modified silicone-treated powder of the component (a) is not particularly limited, but the amino-modified silicone is 0.1 to 10 parts by weight with respect to 100 parts by weight of the powder to be treated. What is processed is preferable from the viewpoints of the lightness of spreading and the effect of suppressing the feeling of burden, and the effect of suppressing warping over time, and further 0.5 to 7 parts by mass with respect to the powder is particularly effective. Therefore, it is more preferable.

On the other hand, the powder that is surface-treated with amino-modified silicone is not particularly limited as long as it is a powder that is usually used in cosmetics, such as spherical, plate-like, needle-like shapes, fumes, fine particles, pigment grades, etc. There are no particular restrictions on the particle size, porous, non-porous particle structure, etc., and examples include inorganic powders, glitter powders, organic powders, pigment powders, and composite powders. .
Specifically, titanium oxide, black titanium oxide, cerium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, anhydrous silicic acid, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate , Calcium sulfate, chromium oxide, chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, nitriding Inorganic powders such as boron, luminescent powder such as bismuth oxychloride, titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, aluminum powder, nylon powder, polymethyl methacrylate Pa , Acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polyethylene powder, polystyrene powder, (dimethicone / vinyl dimethicone) cross polymer powder, (vinyl dimethicone / methicone silsesquioxane) cross polymer powder (Diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross-polymer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, organic powders such as N-acyl lysine, organic tar pigments, Dye powders such as organic pigment lake pigments, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium oxide containing silica, Composite powders, etc. can be mentioned, such as zinc-containing silica may be used alone or in combination.
Among them, from the viewpoint of improving the dispersibility of component (b) flat cellulose (lightening spread and suppressing burden), titanium oxide, zinc oxide, bengara, yellow iron oxide, black iron oxide, anhydrous silicic acid, carbonic acid Inorganic powders such as calcium, calcium sulfate, mica, synthetic mica, sericite, talc, and barium sulfate are preferred, and among these, plate-like powder is more preferred. Specifically, mica, synthetic mica, sericite, talc, plate-like barium sulfate, plate-like calcium sulfate and the like are preferable.

  The average particle diameter is preferably 0.5 to 200 μm, more preferably 1 to 150 μm, in terms of powder dispersibility and usability. In the present invention, the average particle diameter means an average value (average of 50% integrated volume) of powder width and length measured in a dispersion state in water using a laser diffraction / scattering particle size distribution measuring apparatus. Particle size value).

The amino-modified silicone-treated powder (component (a)) of the present invention is prepared by dispersing amino-modified silicone in a solvent and coating the powder surface, or bringing the powder and amino-modified silicone into contact with each other and adding a solvent or the like as necessary. And obtained by coating the powder surface with mechanical force.
The method for coating the surface of these powders with amino-modified silicone is not particularly limited, and generally known processing methods are used. Specific examples include a method of directly mixing with powder and a method of using amino-modified silicone with a solvent such as water, ethanol, isopropyl alcohol, n-hexane, light isoparaffin, benzene, toluene and the like. Furthermore, a gas phase method, a mechanochemical method, etc. can be mentioned. Among the mechanochemical methods, a method using a kneader having a mechanism in which shear shear force is applied in a shear shear type pressure state such as a lightning crusher, a pressure kneader, a mix muller, a roller mill, a Banbury mixer, and a stone mortar is preferable. .

As a particularly preferred embodiment, it is a method using a shear shear type low-speed kneader, for example, amino-modified silicone, powder and solvent are mixed using a thunder crusher or the like, heated to 70 ° C. to 120 ° C., The method of crushing after that is mentioned.
In another preferred embodiment, the amino-modified silicone is dissolved in a volatile solvent and then mixed with the powder. The solvent is dried and removed, or heated to 70 ° C. to 120 ° C. and then dissolved. The method of crushing is mentioned. Among these, the amino-modified silicone-coated powder is particularly preferable, which is obtained by mixing the amino-modified silicone and the powder using a shear shear type low-speed kneader and then heating to 70 to 120 ° C. and then crushing.

  When the powder coated with amino-modified silicone is heated to about 70 ° C. to 120 ° C. as described above, the amino groups in the amino-modified silicone and oxygen atoms of the siloxane bond interact more strongly with the powder surface. It is preferable because it improves water repellency, light spread, and long lasting makeup. Also, by kneading using a solvent, the surface of the substrate can be scratched by strong friction during kneading and electrostatically adsorbed to newly exposed active sites, improving the coating on the powder surface It is preferable because light stretch spread and makeup retention over time are improved.

  As an example of a commercial product of the above-described amino-modified silicone-treated powder (component (a)), “mica Y-2300WA3” (manufactured by Yamaguchi Mica Co., Ltd.) (average particle size 19 μm) ) And talc treated, “EX-15WA3” (manufactured by Yamaguchi Mica Co., Ltd.) (average particle size 15 μm) can be mentioned.

  The component (a) of the present invention can be treated simultaneously with other treating agents, for example, fatty acids, metal soaps, fluorine compounds, etc., as long as they do not interfere with the present invention. In addition, as the component (a) of the present invention, a powder treated with a treating agent other than the amino-modified silicone of the present application or an untreated powder can be used as long as the effects of the present invention are not hindered.

The content of the component (a) in the powder cosmetic of the present invention is not particularly limited, but 0.5 to 75% is preferable from the viewpoint of the lightness of spreading and the effect of suppressing the feeling of burden, the effect of suppressing the twisting over time, Furthermore, if it is 1 to 50%, since those effects are especially remarkable, it is preferable.
As described above, the content of the powder in the powder cosmetic of the present invention is preferably 50 to 100%, but the content of the component (a) in the total powder is preferably 1 to 90%. ˜50% is particularly preferred.

  On the other hand, the flat cellulose powder used as the component (b) in the powder cosmetic of the present invention is combined with the amino-modified silicone-treated powder of the component (a) to reduce the burden on the decorative film and is high. From the oil absorption amount and the affinity to the stratum corneum, the adhesion of the cosmetic to the skin is improved, and the effect of suppressing shine and dullness over time can be obtained.

  The flat cellulose powder as the component (b) has a flaky shape with an average particle diameter of 1 to 100 μm, preferably 1 to 50 μm and an average thickness of 0.01 to 10 μm, preferably 0.1 to 5 μm. And a flatness of 4 to 200, preferably 6 to 150, and more preferably 8 to 100.

  In the present invention, the average thickness means a value obtained by selecting a plurality of particles having a size equivalent to the average particle size obtained above with a scanning electron microscope, measuring the thickness, and averaging them. Further, the flatness is the average particle diameter / average thickness determined as described above.

  The method for producing the flat cellulose powder of the component (b) used in the present invention is not particularly limited, but the method of producing the cellulosic material by mechanically pulverizing it together with the pulverization aid is a ratio of the major axis to the minor axis ( L / D) is preferable because it tends to be moderate. In addition, the grinding aid used at that time is preferably an amphiphilic substance, and is one or more selected from the group consisting of phospholipid, ceramide, cholesterol or a derivative thereof, and phytosterol or a derivative thereof. It is more preferable because it improves the affinity with the skin and is excellent in the moist feeling of use and the effect of suppressing shine, dullness, and blurring over time.

  Specifically, the flat cellulose powder is obtained by adding a grinding aid such as an aqueous component or an oily component to the cellulosic material, mixing it if necessary, and then mechanically grinding it to obtain microfibrils or Fibrils can be obtained by being pulverized while peeling in aggregate units of a certain size.

  The cellulosic material used as a raw material for the flat cellulose is not particularly limited. For example, fibrous or powdery wood powder or wood pulp originating from wood, fibrous or powdered cotton originating from cotton Alternatively, it is preferable to use linter fibers, a fibrous or powdered cellulose material obtained by purifying them, and these cellulose materials may be acid-hydrolyzed. In addition, as a cellulosic substance originating in cotton, the thing originating in the cotton which received the organic certification | authentication may be used. This cellulosic material has about 5 to 10% adsorbed moisture in an air-dried state. In order to effectively obtain a flat cellulose powder, it is preferable to dry in advance by hot air drying, vacuum drying, reduced pressure drying or the like before the cellulose-based material is pulverized.

  In the above pulverization treatment, when using a pulverization aid, it is added so as to be about 0.1 to 12 parts by mass, preferably about 0.5 to 6 parts by mass with respect to 100 parts by mass of the cellulosic material. do it. Moreover, 1 type (s) or 2 or more types can be used for a grinding aid. Furthermore, the timing for adding the grinding aid may be any time before the grinding treatment, and the addition method may be such that the grinding aid may be added to the cellulosic material as it is, or the grinding aid may be added appropriately. You may add to a cellulosic substance after melt | dissolving in a solvent. Examples of the solvent used for dissolving the grinding aid include alkanes such as hexane, alcohols such as ethanol, ketones such as acetone, ethers such as tetrahydrofuran, aromatic hydrocarbons such as toluene, and the like.

Among the grinding aids used in the grinding treatment in the present invention, examples of the amphiphilic substance include phospholipids, ceramides, cholesterol or derivatives thereof, and phytosterols. Use of an amphipathic substance selected from these is preferable because the dispersibility of the flat cellulose powder and the adhesion to the skin are further improved, and the feeling of burden and breakage of the makeup over time are suppressed.
Phospholipids, ceramides, cholesterol, and phytosterols that process these cellulosic substances are amphipathic substances that have a common property that they are lipids in or close to living bodies, that is, long-chain alkyl structures and hydrophilic groups. is there.

  Among the amphiphiles, phospholipid is a general term for lipids having a phosphate ester site in the structure. Specific phospholipids include those derived from natural products hydrogenated to natural lecithins such as egg yolk lecithin and soybean lecithin, hydrogenated lysolecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, sphingomyelin, etc. And the like. Among these phospholipids, hydrogenated lecithin, phosphatidylcholine, phosphatidylethanolamine, and hydrogenated phosphatidylglycerol are preferable.

  In addition, the ceramide has a non-linear group having one or more long-chain linear and / or branched alkyl or alkenyl groups, at least two hydroxyl groups, and one or more amide groups (and / or amino groups) in the molecule. A general term for ionic amphiphiles. Specific examples of ceramide include natural ceramides such as ceramide 1, ceramide 2, ceramide 3, ceramide 3B, ceramide 4, ceramide 5, ceramide 6, ceramide 6I, ceramide 6II and the like, which are long-chain fatty acid amides of sphingosine and phytosphingosine. Is mentioned. Among these ceramides, ceramide 2 and ceramide 3 are preferable. These ceramides may be derived from natural products or synthesized.

Further, cholesterol is a white to slightly yellow solid purified by extracting, crystallizing and drying a fraction obtained from saponified animal oils and fats and fish oil, and its molecular formula is C ₂₇ H ₄₆ O. . Examples of cholesterose derivatives include cholesteryl hydroxystearate, polyoxyethylene cholesteryl ether, and the like. Among these cholesterol or derivatives thereof, cholesterol is preferable.

  Furthermore, phytosterol is a general term for sterol compounds obtained from plants. Specific examples of phytosterols include sitosterol, stigmasterol, fucostosterol, spinasterol, and brush castrol. Examples of phytosterol derivatives include phytosteryl hydroxystearate, polyoxyethylene phytosterol, polyoxyethylene phytostanol, and the like. Among these phytosterols or derivatives thereof, phytosterol is preferable.

  In the treatment for mechanically pulverizing the above-mentioned amphiphilic substance and the cellulosic substance, it is necessary to continuously apply pressure and shearing force by pulverization for a certain period of time. Therefore, it is preferable to use a pulverizing apparatus such as a vibration ball mill, a rotating ball mill, a planetary ball mill, a roll mill, a media mill, a disk mill, a high-speed mixer using high-speed rotating blades, and a homomixer, and a planetary ball mill is particularly preferable. The pulverization method is preferably dry pulverization without using a solvent. In addition, 3-20G (gravity acceleration), preferably 5-15G is suitable as the grinding energy applied when the grinding treatment is performed.

A preferred embodiment for obtaining the above-described flat cellulose is shown below.
The purified wood pulp-derived cellulose powder is dried under reduced pressure at 30 to 50 ° C. to sufficiently remove the adsorbed moisture to 0.1% or less. The cellulose powder is put into a sealable alumina or zirconia grinding container together with alumina or zirconia grinding balls, and a grinding aid (for example, ceramide) is added in an amount of 0.1 to 100 parts by weight of the cellulose powder. Add to 12 parts by mass, mix if necessary. Thereafter, the pulverization container is placed on a planetary ball mill, and pulverization is performed at a rotational speed of 100 to 250 rpm. The pulverization may be performed for 5 to 15 minutes by pulverizing for 5 to 15 minutes, and may be continuously repeated for about 2 to 72 cycles, or continuously for about 5 to 120 minutes without any pause. May be.

  In addition, after the pulverization treatment, moisture and the like attached to the flat cellulose powder may be removed by a known drying means such as air drying, hot air drying, vacuum drying, and reduced pressure drying.

  The content of the component (b) in the powder cosmetic of the present invention is not particularly limited, but 0.5 to 80% is preferable because it is excellent in the effect of reducing the burden on the skin, and the effect is 1 to 50%. Is more preferable because it is particularly remarkable.

  In addition to the above-mentioned components, the powder cosmetic of the present invention usually includes components used in cosmetics, surfactants, oils, ultraviolet absorbers, oil gelling agents, water-soluble polymers, alcohols, etc. Aqueous components, oil-soluble film forming agents such as trimethylsiloxysilicic acid, paraoxybenzoic acid derivatives, preservatives such as phenoxyethanol, vitamins, cosmetic ingredients, fragrances and the like can be appropriately contained within a range not impairing the effects of the present invention. .

  Surfactants include glycerin fatty acid esters and alkylene glycol adducts thereof, polyglycerin fatty acid esters and alkylene glycol adducts thereof, propylene glycol fatty acid esters and alkylene glycol adducts thereof, sorbitan fatty acid esters and alkylene glycol adducts thereof, and sorbitol. Fatty acid esters and their alkylene glycol adducts, polyalkylene glycol fatty acid esters, polyoxyalkylene-modified silicones, non-ionic surfactants such as polyoxyalkylene alkyl co-modified silicones, fatty acids such as stearic acid and lauric acid and their Inorganic or organic salts, alkylbenzene sulfates, alkyl sulfonates, α-olefin sulfonates, dialkyl sulfosuccinates, α -Sulfonated fatty acid salt, acylmethyl taurate salt, N-methyl-N-alkyl taurine salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, Anionic surfactants such as polyoxyethylene alkylphenyl ether phosphates, N-acyl-N-alkyl amino acid salts, alkylamine salts, polyamines and alkanoylamine fatty acid derivatives, alkylammonium salts, alicyclic ammonium salts, etc. Examples include cationic surfactants, phospholipids, amphoteric surfactants such as N, N-dimethyl-N-alkyl-N-carboxymethylammonium betaine, and the like, and one or more of them can be used. .

  Examples of the oil include hydrocarbons such as paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, fisher trops wax, polyethylene wax, liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene, carnauba wax, beeswax, etc. , Natural waxes such as lanolin wax and candelilla, glyceryl 2-ethylhexanoate, pentaerythritol ester of rosin acid, cetyl isooctanoate, isopropyl myristate, diglyceryl triisostearate, dipentaerythritol fatty acid ester, diiso malate Esters such as stearyl, dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), stearic acid, behenic acid Fatty acids such as 12-hydroxystearic acid, higher alcohols such as cetanol, stearyl alcohol, and behenyl alcohol, lanolin derivatives such as lanolin fatty acid isopropyl, lanolin alcohol, N-laureuil L-glutamic acid di (cholesteryl, behenyl, octyldodecyl), etc. These amino acid derivatives, fluorine-based oils such as perfluoropolyether, perfluorodecane, and perfluorooctane can be used, and one or more of these can be used.

  As the ultraviolet absorber, any one usually used in cosmetics may be used. For example, 2-hydroxy-4-methoxybenzophenone, 2,4,6-trianilino-para- (carbo-2′-ethylhexyl- 1'-oxy) -1,3,5-triazine and other benzophenone series, salicylic acid series such as 2-ethylhexyl salicylate, PABA series such as ethyl paradihydroxypropylbenzoate, and cinnamic acids such as paramethoxycinnamic acid-2-ethylhexyl Examples thereof include dibenzoylmethane series such as 4-tert-4′-methoxydibenzoylmethane, and one or more of them can be used.

  As the oil gelling agent, any one can be used as long as it is usually used in cosmetics. Examples thereof include dextrin fatty acid ester, sucrose fatty acid ester, starch fatty acid ester, hydroxystearic acid, calcium stearate, and the like. Or 2 or more types can be used.

  The aqueous component may be any water or water-soluble component, for example, lower alcohols such as ethyl alcohol and propyl alcohol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, 1,2 -Glycerols such as pentanediol and polyethylene glycol, glycerols such as glycerin, diglycerin and polyglycerin, plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender and rose, etc. The molecules include cellulose derivatives such as methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, sodium alginate, carrageen Nan, quince seed gum, agar, gelatin, xanthan gum, locust bean gum, pectin, gellan gum and other natural polymers, polyvinyl alcohol, carboxy vinyl polymer, alkyl-added carboxy vinyl polymer, sodium polyacrylate, sodium polymethacrylate , Synthetic polymers such as glyceryl acrylate, polyvinyl pyrrolidone, and the like, and one or more of them can be used.

  The powder cosmetic of the present invention can be implemented in either a powder form or a solid form. Among these, a solid form is preferable because a uniform makeup film, a feeling of burden, and a long-lasting makeup effect can be easily obtained. Further, the powder cosmetic of the present invention can be applied to products such as sunscreen, makeup base, foundation, concealer, white powder, blusher, eye shadow, etc., especially used for foundation, white powder, blusher, eye shadow, etc. Those that do are preferred.

  A preferred embodiment of the powder cosmetic of the present invention is a solid powder cosmetic, and as an example of a production method thereof, after mixing the powder containing (a) and (b) and an oil component, The method of compression molding to a metal dish is mentioned. Another aspect is a powdery powder cosmetic, and the production method thereof is to mix the powder containing (a) and (b) with an oily component as necessary, and then pulverize the mixture into a container. The method of filling is mentioned.

  Next, the present invention will be described in more detail with reference to production examples and examples of amino-modified silicone-treated powder and flat cellulose. Note that these do not limit the present invention.

Production example 1
Production of amino-modified silicone-treated titanium oxide 5 parts by mass of amino-modified silicone (KF8003 / Shin-Etsu Chemical Co., Ltd.) is dissolved in 70 parts by mass of isopropyl alcohol, and titanium oxide (CR-50: average particle size of 0.25 μm / Ishihara Sangyo) 95 parts by mass) was added. After mixing it with a super mixer (SMP-2 / manufactured by Kawata), isopropyl alcohol was evaporated and dried at 80 ° C. This dried product was pulverized with an atomizer (LM-05 / Dalton) to obtain powdered amino-modified silicone-treated titanium dioxide (5% treatment).

Production Example 2
Production of amino-modified silicone-treated mica 3 parts by weight of amino-modified silicone (KF867S / Shin-Etsu Chemical Co., Ltd.), 97 parts by weight of mica (Y-2300: average particle size 19 μm / manufactured by Yamaguchi Mica) and 10 parts by weight of water The mixture was mixed for 3 hours with a crusher (ZOD type / manufactured by Ishikawa Factory) and heated at 100 ° C. for 4 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain powdered amino-modified silicone-treated mica (3% treatment).

Production Example 3
Production of amino-modified silicone-treated talc (1)
3 parts by weight of amino-modified silicone (KF8004 / Shin-Etsu Chemical Co., Ltd.), 97 parts by weight of talc (EX-15: average particle size 15 μm / manufactured by Yamaguchi Mica) and 10 parts by weight of water are mixed for 3 hours in a thunder crusher. And heated at 90 ° C. for 3 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain a powdery amino-modified silicone-treated talc (3% treatment).

Production Example 4
Manufacture of amino-modified silicone-treated talc (2)
2 parts by mass of amino-modified silicone (SF8451C / manufactured by Toray Dow Corning Silicone) and 98 parts by mass of talc (JA-13R: average particle size 6 μm / manufactured by Asada Flour Milling Co., Ltd.) are mixed for 10 minutes with a super mixer, and 70 ° C. For 5 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain a powdery amino-modified silicone-treated talc (2% treatment).

Production Example 5
Production of Phospholipid-treated Flat Cellulose Powder As a raw material, purified cellulose pulp-derived cellulose powder (W-400G / manufactured by Nippon Paper Chemicals Co., Ltd.) was used. First, a cellulose powder (48.5 parts by mass) from which adsorbed moisture has been sufficiently removed by drying under reduced pressure at 40 ° C. to 0.1% or less is placed in a zirconia grinding container (capacity 500 ml) that can be sealed, and zirconia grinding balls. (Diameter 20 mm) was added, and hydrogenated lecithin (Resinol S-10 / manufactured by Nikko Chemicals) was added in an amount of 1.5 parts by mass.

  Then, using a planetary ball mill (P-5 type / manufactured by Fritsch, Germany), at a rotation speed of 200 rpm (pulverization energy of about 10 G (gravity acceleration)), 10-minute pulverization and 10-minute pause are defined as one cycle. A cycle was performed to obtain a phospholipid-treated flat cellulose powder (3% treatment).

  The particle size distribution measurement is performed after a suspension in which 50 mg of the obtained powder is dispersed in 10 ml of distilled water is dropped into a sample circulation tank using water as a medium of the particle size distribution measurement device and the concentration is adjusted to an appropriate concentration. did. As a result, the average particle size of the powder was 17 μm.

  In observation with a scanning electron microscope, a very small amount of the obtained powder was placed on a sample stage of the scanning electron microscope, dried under reduced pressure, and then a metal such as gold or platinum was vapor-deposited to obtain a microscopic sample. From the image obtained by observing this microscopic sample at an acceleration voltage of 20 to 25 kV and an enlargement ratio of 500 to 10,000 times, the thickness of particles having the same size as the average particle size measured above was measured, The average thickness was determined from them. As a result, the average thickness was 2 μm.

  The powder thus obtained has an average particle diameter of 17 μm, an average thickness of 2 μm, and flat cellulose particles (phospholipid-treated flat cellulose having a flatness (average particle diameter / average thickness) of 8.5). Powder).

Production Example 6
Production of ceramide-treated flat cellulose powder In the same manner as in Production Example 4, as a grinding aid, 1 part by mass of ceramide 2 (Ceramide TIC-001 / Takasago International Corporation) and cellulose powder 49 instead of 1.5 parts by mass of phospholipids Ceramide-treated flat cellulose (2% treatment) was produced using parts by mass.

  The powder thus obtained has an average particle diameter of 20 μm, an average thickness of 2 μm, and flat cellulose particles having a flatness (average particle diameter / average thickness) of 10 (ceramide-treated flat cellulose powder). Met.

Production Example 7
Production of phytosterol-treated flat cellulose powder Using 2 parts by mass of phytosterol and 48 parts by mass of cellulose powder instead of 1.5 parts by mass (3%) of phospholipid as a grinding aid in the same manner as in Production Example 4, phytosterol Treated flat cellulose (4% treatment) was produced.

  The powder thus obtained has an average particle size of 22 μm, an average thickness of 2.5 μm, and flat cellulose particles (phytosterol-treated flatness) having a flatness (average particle size / average thickness) of 8.8. Cellulose powder).

Examples 1 to 6 and Comparative Examples 1 to 5: Solid Foundation A solid foundation having the composition shown in Table 1 was prepared by the following production method. In addition, the feeling of use and longevity were evaluated by the following evaluation methods. The results are also shown in Table 1.

* 1: Y-2300 (Yamaguchi Mica)
* 2: Titanium oxide (CR-50) treated with dimethylpolysiloxane 3% * 3: Mica (Y-2300) treated with dimethylpolysiloxane 3% * 4: Titanium oxide (CR-50) 3% treated with perfluorooctyltriethoxysilane * 5: Mica (Y-2300) treated with 3% perfluorooctyltriethoxysilane * 6: W-400G (Nippon Paper Chemical Co., Ltd. average particle size approx. 25μm, flatness 3 or less)
* 7: KF867S (Shin-Etsu Chemical Co., Ltd.)

(Production method)
A: Components 1 to 20 are mixed.
B: Components 21 to 25 are added to A and mixed.
C: B is pulverized with a pulverizer.
D: C was press-filled into a resin dish to obtain a solid foundation.

〔Evaluation method〕
Twenty professional cosmetics evaluation panels used the solid foundations of Examples and Comparative Examples described in Table 1, and evaluated “lightness of spread” and “no burden” at the time of application. As for the effect of suppressing makeup collapse, after 5 hours of application of cosmetics, oil glow is evaluated for “no shine”, color change is “no dullness”, and localization is “no blurring / no pore removal” did. Each item was evaluated on a five-point scale according to the following evaluation criteria, given a score for each sample, and the average score of all panels was determined according to the following criteria.
Evaluation criteria:
[Evaluation Result]: [Score]
Very good: 5 points Good: 4 points Normal: 3 points Somewhat bad: 2 points Bad: 1 point Judgment criteria:
[Average score]: [Judgment]
4.5 or more: ◎
3.5 or more and less than 4.5: ○
1.5 or more and less than 3.5: △
Less than 1.5: ×

As is clear from the results in Table 1, the solid foundations of Examples 1 to 6 of the present invention have “lightness of extension”, “no sense of burden”, “no shine” 5 hours after applying cosmetics. ”,“ No dullness ”, and“ No loss of pores / pores ”.
On the other hand, Comparative Example 1 which does not contain the powder surface-treated with the amino-modified silicone of component (a) has a non-uniform adhesion to the skin when applied, a heavy elongation, and a dry powdery finish. It was inferior to “lightness of growth” and “no burden”. In addition, after 5 hours of application, it was inferior to “no shine” and “no gaps in pores”, such as noticeable shine and pore removal.
In addition, in Comparative Example 2 containing a silicone-treated powder instead of the surface-treated powder of amino-modified silicone (a), the finish is inferior in “no burden” such as feeling a powdery dry feeling in the finish. It was. In addition, after 5 hours from application, the shine was noticeable, the lack of shine was inferior, and the pores were slightly removed.
Further, in Comparative Example 3 containing a powder treated with a fluorine compound instead of the powder surface-treated with the amino-modified silicone of (a), the affinity for the skin is low, and there is a sense of incongruity in spreading and spreading. It is inferior to “lightness of spreading” and “no sense of burden” such as feeling as if the makeup film floats up from the skin, and localization of the makeup film progresses even after 5 hours of application, “no wrinkles or pore removal” Was particularly inferior.
Furthermore, in Comparative Example 4 which does not contain the flat cellulose of the component (b), it is inferior to “lightness of extension” and “no feeling of burden” such as a feeling of discomfort with the spread and the decorative film after application, Even after 5 hours, it was inferior to “no shine” and “no dullness”.
In Comparative Example 5 in which the amino-modified silicone was simply mixed together with the oil in the cosmetic, powder aggregation was observed, in particular, aggregation of flat cellulose occurred, and the cosmetic film after application had a feeling of weight and discomfort. It was inferior to “Nana”, and after 5 hours, it was inferior to “No dullness” and “No loss of pores and pores”.

Example 7: Powdered white powder (component) (%)
1. Amino-modified silicone-treated mica 15 of Production Example 2
2. Flat cellulose of Production Example 15 15
3. Stearic acid (5%) treated yellow iron oxide 0.2
4). Stearic acid (5%) treated bengara 0.1
5. Stearic acid (5%) treated black iron oxide 0.05
6). Barium sulfate * 8 4
7). Silicone composite spherical powder * 9 10
8). 8. Amino-modified silicone-treated talc * 10 Remaining amount Silicone-treated iron oxide / titanium oxide coated mica * 11 2
10. Methyl methacrylate cross polymer * 12 5
11. Methylparaben 0.1
12 Dilinoleic acid di (phytosteryl / stearyl /
Behenyl / isostearyl / cetyl) * 13 1
13. Squalane 0.5
14 Rosemary extract 0.1
15. Perfume appropriate amount * 8: Plate-like barium sulfate HL (manufactured by Sakai Chemical Industry Co., Ltd.)
* 9: KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 10: EX-15WA3 (manufactured by Yamaguchi Mica)
* 11: Dimethylpolysiloxane (3%) treated RELIEF COLOR PINK (manufactured by JGC Catalysts & Chemicals)
* 12: Matsumoto Microsphere M-305 (Matsumoto Yushi Seiyaku Co., Ltd.)
* 13: PLANDOOL-S (Nippon Seika Co., Ltd.)

(Production method)
A: Components 1 to 11 are mixed.
B: Components 12 to 15 are mixed with A.
C: B is pulverized.
D: C was filled into a container to obtain a powdery white powder.
The effect of the powdery white powder of Example 7 of the present invention was evaluated in accordance with Example 1. As a result, it was found that “lightness of spread”, “no feeling of burden”, 5 hours after cosmetic application. It was excellent in all items of “No shine”, “No dullness”, and “No loss of pores”.

Example 8: Solid blusher (component) (%)
1. Amino-modified silicone-treated titanium oxide of Production Example 1 2
2. Amino-modified silicone-treated talc of Production Example 3 15
3. Amino-modified silicone-treated mica * 14 20
4). Flat cellulose 5 of Production Example 6
5. Red 226 0.5
6). Octyltriethoxysilane (5%) treated sericite 15
7). Nylon powder (spherical: average particle size 10 μm) 5
8). Boron nitride 5
9. Talc remaining 10. Silicone elastomer powder * 15 1
11. Zinc myristate 1
12 Mica titanium * 16 4
13. Methylparaben 0.2
14 Dimethylpolysiloxane * 17 3
15. PEG-10 hydrogenated castor oil 0.5
16. Squalane 3
17. Di-2-ethylhexyl succinate 3
18. Sage oil 0.1
19. Astaxanthin 0.001
20. Perfume appropriate amount * 14: Mica Y-2300WA3 (manufactured by Yamaguchi Mica)
* 15: Trefill E-506C (manufactured by Toray Dow Corning)
* 16: TIMIRON STARLUSTER MP-115 (Merck)
* 17: KF-96 (10CS) (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Production method)
A: Components 1 to 13 are mixed with a Henschel mixer.
B: Components 14 to 20 are mixed with A.
C: B is pulverized with a pulverizer.
D: C was filled in a resin dish and pressure-molded to obtain a solid blusher.
When the effect of the solid blusher of Example 8 of the present invention was evaluated according to Example 1, it was found to be “lightness of spread”, “no feeling of burden”, 5 hours after applying cosmetics. It was excellent in all items of “No shine”, “No dullness”, and “No loss of pores”.

Example 9: Solid eyebrow (component) (%)
1. Amino-modified silicone-treated titanium oxide 3 of Production Example 1
2. Flat cellulose 5 of Production Example 6
3. Mica 10
4). Dimethylpolysiloxane (3%) treated talc 30
5. Bengala 0.5
6). Yellow iron oxide 5
7). Black iron oxide 1.5
8). Lauroyl lysine 1
9. Synthetic wax 2
10. Phospholipid (1%) treated sericite Silica 5
12 Dehydroacetic acid Na 0.3
13. Liquid paraffin 2
14 Trioleic acid PEG-20 acid sorbitan 0.2
15. Cholesteryl hydroxystearate 1.5
16. Hydrolyzed collagen 0.01
17. Perfume

(Production method)
A: Components 1 to 11 are mixed uniformly with a super mixer.
B: Components 12 to 17 are dissolved by heating at 70 ° C. and added to A.
C: B is pulverized.
D: C was press-filled into a resin dish to obtain a solid eyebrow.
When the effect of the solid eyebrow of Example 9 of the present invention was evaluated according to Example 1, it was found to be “lightness of spread”, “no feeling of burden”, 5 hours after cosmetic application. It was excellent in all items of “No shine”, “No dullness”, and “No loss of pores”.

Example 10: Solid eye shadow (component) (%)
1. Amino-modified silicone-treated mica 5 of Production Example 2
2. Amino-modified silicone-treated talc of Production Example 3 20
3. Flat cellulose 5 of Production Example 5
4). Red No. 202 1
5. Blue 404 No.0.2
6). Black iron oxide 0.1
7). Ultramarine 0.5
8). Silicone-treated silicic acid / titanium oxide coated mica * 18 10
9. Mica titanium * 19 10
10. Conger-covered mica titanium * 20 5
11. Titanium oxide coated synthetic phlogopite * 21 10
12 Titanium oxide coated borosilicate * 22 5
13. 14. Sericite treated with dimethylpolysiloxane (3%) Sorbitan sesquistearate 1
15. Heavy isoparaffin 3
16. Mineral oil (10mm ² / s: 25 ° C) 5
17. Dimethicone * 17 2
18. Xicon extract 0.2
19. Novara extract 0.1
* 18: Timilon Splendid Violet (Merck) treated with dimethylpolysiloxane (3%)
* 19: FLAMENCO ULTRA SPARKLE 4500 (manufactured by BASF)
* 20: DUOCROME BR (manufactured by BASF)
* 21: HELIOS R100S (Topy Industries, Ltd.)
* 22: Metashine MT1080RB (manufactured by Nippon Sheet Glass Co., Ltd.)

(Production method)
A: Components 1 to 13 are mixed uniformly.
B: Components 14 to 17 are heated and dissolved at 70 ° C.
C: B and components 18 and 19 are mixed with A.
D: Process by sieving C.
E: D was press-filled into a metal pan to obtain a solid eye shadow.
When the effect of the solid eye shadow of Example 10 of the present invention was evaluated according to Example 1, it was found to be “lightness of spread”, “no feeling of burden”, and 5 hours of cosmetic application. It was excellent in all the following items: “No shine”, “No dullness”, and “No loss of pores”.

Example 11: Solid sunscreen foundation (component) (%)
1. Amino-modified silicone-treated mica * 14 5
2. Flat cellulose 5 of Production Example 6
3. Fine zinc oxide (average particle size 15 nm) 8
4). Nylon powder * 23 7
5. Silicone composite spherical powder * 9 1
6). Zinc laurate (5%) treated sericite 10
7). 7. Methyl hydrogen (2%) treated talc Titanium oxide (average particle size 0.25 μm) 8.5
9. Silicic anhydride (average particle size 5μm) 1
10. Fischer-Tropsch wax (powder) 1
11. Bengala treated with methyl hydrogen (2%) 0.9
12 Methyl hydrogen (2%) treated yellow iron oxide 1.9
13. Methyl hydrogen (2%) treated black iron oxide 0.5
14 Sericite treated with zinc lauroyl glutamate (3%) 10
15. Diisostearyl malate 1
16. Glyceryl tri-2-ethylhexanoate 3.5
17. Hexa (hydroxystearic acid / stearic acid /
Rosinic acid) dipentaerythrityl 0.5
18. Dimethicone * 17 1.5
19. Isotridecyl isononanoate 3
20. Sodium hyaluronate (1%) aqueous solution 1
21. Hydrolyzed collagen (1%) aqueous solution 1
22. Theanine 0.01
* 23: Olgasol 2002D (manufactured by Arkema)

(Production method)
A: Components 1 to 14 are mixed with a Henschel mixer.
B: Components 15 to 19 are mixed with A.
C: B is pulverized with a pulverizer.
D: Add 20 to 22 to C, and size through a sieve.
E: D was filled in a resin pan and pressure-molded to obtain a solid sunscreen foundation.
When the effect of the solid sunscreen foundation of Example 11 of the present invention was evaluated according to Example 1, it was found to be “lightness of spread”, “no feeling of burden”, cosmetic coating 5 It was excellent in all items of “no shine”, “no dullness”, and “no dullness / porosity” after time.

Example 12: Powdered body powder (component) (%)
1. Amino-modified silicone-treated talc 50 of Production Example 3
2. Flat cellulose of Production Example 5 25
3. Red 226 0.1
4). Yellow No.4 0.2
5. Black iron oxide 0.05
6). Bengala 0.2
7). Silicone resin powder * 24 7
8). 8. Mica remaining amount Porous silica * 25 5
10. Fragrance 1
11. L-Menthol 0.5
* 24: Tospearl 2000B (Toray Dow Corning)
* 25: God ball E2-824C (manufactured by Suzuki Yushi Kogyo Co., Ltd.)

(Production method)
A: Components 1 to 9 are mixed uniformly with a Henschel mixer.
B: Components 10 and 11 are added to A and mixed uniformly.
C: B was filled in a container to obtain a powdered body powder.
The effect of the powdered body powder of Example 12 of the present invention was evaluated according to Example 1, and the result was “lightness of spread”, “no feeling of burden”, and 5 hours of cosmetic application. It was excellent in all the following items: “No shine”, “No dullness”, and “No loss of pores”.

Claims (10)

The following components (a) and (b);
(A) Powder treated with amino-modified silicone (b) A powder cosmetic comprising flat cellulose powder.   The powder according to claim 1, wherein the flat cellulose powder of the component (b) has an average particle size of 1 to 100 µm, an average thickness of 0.01 to 10 µm, and a flatness of 4 to 200. Body cosmetics.   The powder cosmetic according to claim 1 or 2, wherein the component (b) is a flat cellulose powder obtained by mechanically grinding a cellulosic material and a grinding aid.   4. The powder cosmetic according to claim 3, wherein the grinding aid contains a flat cellulose powder of component (b) which is an amphiphilic substance.   The amphiphilic substance contains a flat cellulose powder of component (b) which is one or more selected from the group consisting of phospholipid, ceramide, cholesterol or a derivative thereof and phytosterol or a derivative thereof. The powder cosmetic according to claim 4.   The flat cellulose powder of the said component (b) uses 0.1-12 mass parts of amphiphilic substances with respect to 100 mass parts of cellulosic substances, The Claim 4 or 5 characterized by the above-mentioned. Powder cosmetics.   The powder cosmetic according to any one of claims 3 to 6, comprising a flat cellulose powder of component (b), wherein the mechanical pulverization is performed by a planetary ball mill.   The powder cosmetic according to any one of claims 1 to 7, wherein the powder treated with the amino-modified silicone of component (a) is contained in an amount of 1 to 90% by mass in the total powder.   The powder treated with the amino-modified silicone of the component (a) is obtained by treating the amino-modified silicone with 0.1 to 10 parts by mass with respect to 100 parts by mass of the powder. The powder cosmetic according to any one of 8.   The powder cosmetic according to any one of claims 1 to 9, wherein the powder cosmetic is solid.