JP5133119B2 - Cosmetic powder - Google Patents

Description

The present invention is cosmetic inorganic powder consisting of inorganic powder and / or inorganic powder in addition to the processing hydrophobized treated with silane complexes with organic acids or alcohols, as well as inorganic for the cosmetic The present invention relates to a cosmetic containing powder.

Makeup cosmetics have the function of covering the defects of skin and dressing beautifully. Normally such a make-feature, largely depends on the optical effects, such as hiding properties and additive color effect of the powder KaradaHara fee. Therefore, in order to maintain such an optical effect, it is necessary that the powder raw material stays on the skin in the state when it is put on. Typically, over time, flour KaradaHara fee or physically drop out, wet with sweat and sebum, found in a phenomenon called the so-called makeup to or got different optical effect. The cause of the falling of the makeup, which is a cause of the makeup collapse, may be due to the degree of adhesion of the powder, the flow due to sweat or sebum, and the like.

Various studies have been made to improve makeup retention. Among these, for physical removal, a method of forming a film of an adhesive polymer such as a methacrylate ester derivative on the skin (for example, patents) Reference 1 and Patent Document 2), and there is a countermeasure such as a method of blending a wax base having a good fixing property into cosmetics (for example, refer to Patent Document 3), etc. the corresponding method, such as powder treatment in water and oil repellency polymer (e.g., Patent Document 4, Patent Document 5, refer to Patent Document 6) is exist.

  On the other hand, it is already known to use a water-soluble sugar derivative such as sodium hyaluronate in the surface treatment of the powder. By such surface treatment, the dry feeling is lower than that of the untreated powder. It is known that the makeup retention and the aqueous medium dispersibility are improved while suppressing the above-mentioned (see, for example, Patent Document 7 and Patent Document 8). Compared to alkyl phosphate treatment or the like, it is not large, and the maintenance of the moisture retention of the treatment also has a problem. In order to improve such a point and further improve the aqueous medium dispersibility, dimethyldisianol was reacted with hyaluronic acid to form a complex, and this was used to perform powder coating, which was water-soluble. A technique for fixing with cationic molecules has been developed. (For example, refer to Patent Document 9 and Patent Document 10) Such surface treatment is particularly suitable for organic powder having a large number of lipophilic groups and reactive groups on the surface, and the aqueous medium dispersibility of the organic powder. However, there is no example in which such a treatment is performed on an inorganic powder with few reactive groups present on the surface, and the treatment effect is not known at all.

In addition, it has already been disclosed that cosmetic powders excellent in water and oil repellency can be produced by a silicone baking treatment or a perfluoroalkyl phosphate treatment (see, for example, Patent Document 11 and Patent Document 12) . The effect of improving the longevity of these items is clearly recognized as described above. However, in such a treatment, even if the effect of improving the longevity of cosmetics in the sense that the remaining amount of cosmetics is improved, there is a problem with the persistence of the appearance beauty. That is, since a lot of cosmetics remain, there are cases where the uneven distribution of the cosmetics is conspicuous due to this residual. This phenomenon was also due to the fact that secondary agglomeration was easily promoted by the surface treatment. In addition, in such a treatment, suppression of dryness that appears due to the application of the powder is also observed, but it has not reached a sufficiently moist feeling in the skin.

  On the other hand, it has not been known at all to treat the surface of an inorganic powder with a silane complex with an organic acid or alcohol. In addition, it has not been known at all that such a treated powder has an unprecedented cosmetic goodness with a large amount of cosmetics remaining and low non-uniformity.

JP 2002-60322 A Japanese Patent Application Laid-Open No. 07-187951 Japanese Patent Laid-Open No. 02-20620 JP 2003-146829 A JP 2002-194337 A JP 2001-2524 A Japanese Patent Laid-Open No. 62-209011 JP 05-32525 A JP 2005-247720 A JP 2005-213362 A Japanese Patent Laid-Open No. 2003-73235 JP 2003-95639 A

The present invention has been made under such circumstances, and an object of the present invention is to provide an inorganic powder for cosmetics that has good makeup and has a moisturizing effect and avoids agglomeration of the powder.

In view of such a situation, the present inventors have sought for a powder that has excellent makeup retention and moisturizing effect and can avoid agglomeration of powder, and as a result of earnest research efforts, The inventors have found that powder treated with a silane composite coating has such an effect, and have completed the invention. That is, the present invention is as follows.
(1) An inorganic powder for cosmetics coated with a silane complex with an organic acid or alcohol , wherein the silane complex with the organic acid or alcohol is hyaluronic acid dimethylsilanediol, lactate monomethylsilanetriol, and Ri der one or more selected from methylsilanol tri PEG-8- glyceryl cocoate, wherein said inorganic powder is a sericite and / or mica, or hydrophobized titania sericite, of Inorganic powder for cosmetics.
( 2 ) The coating amount of the silane complex with the organic acid or alcohol is 0.001 to 20% by mass with respect to the coating powder, The inorganic powder for cosmetics according to (1) body.
( 3 ) The inorganic powder for cosmetics according to (1) or (2) , wherein the sericite and / or mica is subjected to a hydrophobic treatment.
( 4 ) The hydrophobizing treatment is selected from perfluoroalkyl treatment, perfluoroalkyl phosphate treatment, hydrogenmethylpolysiloxane baking treatment, dimethylpolysiloxane baking treatment, metal soap coating treatment, acylated amino acid salt coating treatment1 The inorganic powder for cosmetics according to ( 3 ), characterized in that it is a seed or two or more kinds.
( 5 ) The inorganic powder for cosmetics according to ( 3 ) or ( 4 ), wherein a coating amount by the hydrophobization treatment is 0.05 to 20% by mass with respect to the coated powder.
(6) (1), characterized in that it contains a cosmetic inorganic powder according to any one of - (5), cosmetics.
( 7 ) The cosmetic according to ( 6 ), which is a solid powder cosmetic.
(8) (1) cosmetic inorganic powder according to any one of - (5), characterized in that 0.01 to 100% by weight based on coating powder to be contained in cosmetics Cosmetics according to ( 6 ) or ( 7 ).
( 9 ) It is obtained by adding a solvent to a cosmetic base composed of powder and oil as a slurry, filling the slurry in an inner dish, and then removing the solvent, ( 7 ) or ( 8 ) Solid powder cosmetics.

According to the present invention, excellent cosmetic durability and moisturizing effect, can provide avoidable cosmetic inorganic powder aggregation of the powder.

<1> cosmetic inorganic powder cosmetic inorganic powder present invention, the coating treatment with the silane complexes with organic acid or alcohol, or the coating treatment with the silane complexes with organic acid or alcohol and Hydrophobized powder.
The silane complex coating treatment with an organic acid or alcohol applied to the inorganic powder for cosmetics of the present invention is performed by mixing and reacting an organic acid and an alkyl (C1-4) silane in advance, and bonding with an ester or ether bond A silane complex with an organic acid or alcohol, which is made into a composite, is coated on the surface of an inorganic powder, and is fixed by heating or acid / alkali treatment, if desired. For example, the silane complex can be dissolved in a volatilizable solvent, sprayed and volatilized. Preferable examples of the volatilizable solvent include methylene chloride. Preferred examples of the organic acid constituting the silane complex include salicylic acid, lactic acid, hyaluronic acid, pectin, ascorbic acid, manuronic acid, pantothenic acid, hydroxyproline, alginic acid, and the like. Examples of the alcohol include polyethylene glycol and glycerin. The polyhydric alcohol can be preferably exemplified. Such an organic acid or alcohol may have a substituent, and examples of the substituent include an acyl group, a phosphoryl group, a polyhydric alcohol residue, and a carboxylic acid residue. Examples of the silane include methyl silane triol, dimethyl silane diol, trimethyl silanol, and the like, but methyl silane triol or dimethyl silane diol is particularly preferable. Preferred examples of such a silane complex with an organic acid or alcohol include methylsilanol manuronate, dimethiconol panthenol, 5,6-di-o-dimethylsilis ascorbate, dimethicone PEG-7 phosphate, Dimethylsilanediol hyaluronate, monomethyltrisilanol lactate, PEG-8-glyceryl cocoate (methylsilanol / polyoxyethylene coconut fatty acid glycerin condensate), PCA methylsilanol, ascorbylmethylsilanol pectinate, methylsilanol hydroxyproline aspartate, methylsilanol Examples thereof include carboxymethyl theophylline alginate . In order to prepare the inorganic powder for cosmetics of the present invention, an organic acid or alcohol is reacted with an alkylsilane by the above-mentioned means to prepare a silane complex, which can also be used. Already commercially available silane composites can also be purchased and used. Preferable commercially available products include, for example, Algisium C (registered trademark; methylsilanol manuronate), PRO-AA (5,6-di-o-dimethylsilis ascorbate), DSHCN (hyaluron) sold by Exsymol. Dimethylsilanediol), LASILIUM (monomethyltrisilanol lactate), sold by Biosil Technologies, Inc., AMINO DL-30 (dimethiconol panthenol), Pecosil PSE: dimethicone PEG sold by Phoenix Chemical Examples include -7 phosphate. Of these, dimethylsilanediol hyaluronate, monomethylsilanetriol lactate, and methylsilanol triPEG-8-glyceryl cocoate are particularly preferable, and are treated so as to be 0.001 to 20% by mass with respect to the total amount of the powder. Preferably, it is 0.1-5 mass%. In the coating treatment using these, an inorganic powder is dispersed in a 1 to 20 times volume liquid carrier, for example, one or more solvents selected from water, ethanol, isopropanol, methylene chloride, and the like. The solution of the silane complex is added to the solution, and then the liquid carrier is removed by vacuum concentration or the like. In the inorganic powder for cosmetics of the present invention, it is preferable to perform a hydrophobic treatment in addition to the silane composite coating treatment. Such hydrophobizing treatment includes (per) fluoroalkylsilane coupling agent and (per) fluoroalkylation treatment with (per) fluoroalkyl phosphate diethanolamine, hydrogen methylpolysiloxane baking, dimethylpolysiloxane baking, zinc stearate A metal soap coating treatment such as, for example, an acylated amino acid salt coating treatment such as aluminum N-lauroylglutamate can be suitably exemplified. Such a hydrophobizing treatment may be performed prior to the silane complex coating treatment or may be performed after the silane complex treatment. Particularly preferred is a method in which the hydrophobization treatment is performed in advance, and then the silane complex treatment is performed. As the hydrophobizing treatment in such a case, (per) fluoroalkylation treatment and hydrogenmethylpolysiloxane baking treatment can be particularly preferably exemplified. By performing the processing in such an order, the uniform maintainability is remarkably improved. In addition, as a secondary effect, the aqueous carrier dispersibility and the dryness-inhibiting effect during use become prominent. Such a hydrophobization treatment is preferably performed so as to be 0.05 to 20% by mass and further 0.5 to 3% by mass with respect to the total amount of the powder. In the inorganic powder for cosmetics of the present invention, for example, if the hydrophobizing treatment is a perfluoroalkyl treatment, a coupling treatment using a silylating agent having a perfluoroalkyl group or a perfluoroalkyl phosphoric acid is performed. An ester diethanolamine salt or the like may be coated. Hydrogenmethylpolysiloxane baking or dimethylpolysiloxane baking can be performed by dissolving in a solvent such as methylene chloride and uniformly coating, followed by baking at 100 to 400 ° C. Metal soap coating is made of metal such as aluminum stearate. soap can be prepared by mechanochemically coating. In the case of acylated amino acid treatment, the powder is dispersed in an aqueous solution of sodium N-lauroyl glutamate, and then an aqueous solution of aluminum chloride is added to precipitate the aluminum N-acyl glutamate on the powder, followed by drying. Can be prepared. Among these processing, perfluoroalkyl processing, such as hydrogen methyl polysiloxane baking can be particularly preferably exemplified. Perfluoroalkyl treatment is an alkyltrialkoxysilane, dialkoxydialkylsilane or alkoxytrialkylsilane having an alkyl group containing a perfluoroalkyl structure having only a carbon-carbon bond and a carbon-fluorine bond in the alkyl group. It means a powder that is treated with an alkylsilane or the like and chemically modified on the powder surface with an alkyl group containing the perfluoroalkyl structure in the alkyl group. The alkyl group having such a perfluoroalkyl structure is preferably an alkyl group having 3 to 20 carbon atoms and having 50% or more of its hydrogen substituted with fluorine atoms. For example, a pentafluoropropyl group, hepta fluoropentyl group, tridecafluorooctyl group, heptadecafluorodecyl group, Application Benefits deca octadecyl group and the like can be preferably exemplified. By performing silane coupling with the silane coupling agent having these groups, a perfluoroalkyl-treated powder can be obtained. The throughput, powder: perfluoroalkyl treatment agent = 8 0: 2 0-99: preferably performed 1 processing. Further, such treated powders are commercially available, and such commercially available treated powders can also be used in the present invention. Examples of such commercially available products include HF sericite and HF titania sericite (both manufactured by Teika Co., Ltd.). In the case of baking treatment with hydrogenmethylpolysiloxane or dimethylpolysiloxane, 0.1-20 parts by weight of the silicone is coated on the powder with respect to the base powder, and then baked at 80-200 ° C. That's fine. For metal soap treatment, powder and fatty acid soap coexist in an aqueous carrier, and a soluble metal salt such as aluminum chloride or zinc chloride is added to deposit metal soap on the powder, which is taken out and dried. If so, a metal soap coating powder can be obtained. An acylated amino acid salt-coated powder can also be produced according to the same method. The metal soap or acylated amino acid salt is preferably used in an amount of 0.1 to 20% by weight based on the base powder.

<2> Cosmetics of the Present Invention The cosmetics of the present invention are characterized by containing the powder for cosmetics of the present invention as an essential component . The cosmetic of the present invention is not limited as long as it is a dosage form usually used as a special cosmetic, but a solid powder cosmetic is preferred. The solid powder cosmetic of the present invention is obtained by coating a powder with a fat / oil component of 5 to 25% by mass as desired, and molding the powder into a solid, and suitable examples of the molding means include pressure molding. it can. The method for producing the solid powder cosmetic is not particularly limited, and may be any of a press molding method, a wet molding method, etc. The press molding method is performed by mixing and dispersing the powder component and the oily component and then filling the inner dish. This is a method of pressure molding. In the wet molding method, powder and oil are mixed and dispersed, and then a solvent such as water, alcohol, light isoparaffin, cyclomethicone, and low molecular weight dimethicone is added to form a slurry with some fluidity. filling of the container, and removing the solvent by pulling pressure, etc.. To secure the effect of the present invention, since it is possible to improve the effect by dispersing agglomerated without the powder in the product, a wet molding method is preferred. In the cosmetic of the present invention, the content of cosmetic inorganic powder of the invention that are essential components, but no particular limitation as long as it is an amount that effects of such powder appears, relative to the total amount of the cosmetic 1-60 mass% is preferable, More preferably, it is 10-40 mass%. If such a powder is less than the lower limit, it is difficult to achieve the effects of the present invention. If the upper limit is exceeded, the degree of freedom of the cosmetic dosage form is reduced, and the feeling of use, the moisturizing effect, and the effect of holding the makeup are weakened.

The external preparation for skin of the present invention can contain, in addition to such components, optional components that are usually used in powder cosmetics. Examples of such optional ingredients include macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, and hardened coconut oil. Oil, wax, etc., liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum , hydrocarbons such as microcrystalline wax; oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, higher fatty acids such as undecylenic acid; cetyl alcohol, stearyl alcohol, Isosutearirua Call, behenyl alcohol, octyldodecanol, myristyl alcohol, higher alcohols such as Setosuteari luer alcohol; isooctane cetyl, isopropyl myristate, isostearate hexyl decyl, diisopropyl adipate, sebacic di-2-ethylhexyl, cetyl lactate, malate Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate; dimethylpolysiloxane, methylphenylpolysiloxane Sun, chain polysiloxane such as diphenylpolysiloxane; cyclic polysiloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane; amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oils such as silicone oils such as modified polysiloxanes such as fluorine-modified polysiloxanes; Anionic surfactants such as fatty acid soaps (sodium laurate, sodium palmitate, potassium lauryl sulfate), triethanolamine ethers of alkyl sulfates; Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide; imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazo Nium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkylbetaines, amide betaines, sulfobetaines, etc.), amphoteric surfactants such as acylmethyltaurine; sorbitan fatty acid esters (sorbitan monostearate) Rates, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE) sorbitan monooleate, monostearate polyoxyethylated sorbitan, etc., POE sorbit fatty acid esters (POE- sorbit monolaurate over preparative etc.), POE glycerol fatty acid ester (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonyl phenyl ether, etc.) Pluronic type compound, POE-POP alkyl ethers (POE-POP2- Deshirutetoradeshi Rue ether, etc.), Tetronic acids, POE castor oil and hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), sucrose fatty acid ester , nonionic surfactants such as alkyl glucoside, polyethylene glycol, glycerin, 1, 3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol Polyhydric alcohols such as dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol; sodium pyrrolidonecarboxylate, Moisturizing ingredients such as lactic acid and sodium lactate; powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc. whose surface may be treated The surface may be treated, inorganic pigments such as bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide; the surface may be treated, mica titanium, Pearl agents such as fish phosphorus foil and bismuth oxychloride; red 202 which may be raked, red 228 , Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow 204, Yellow 203, Blue 1, Green Organic pigments such as 201, purple 201 and red 204; organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer; paraaminobenzoic acid UV absorbers; anthranilic acid UV Absorber; salicylic acid UV absorber; cinnamic acid UV absorber ; benzophenone UV absorber; sugar UV absorber; 2- (2'-hydroxy-5'-t-octylphenyl) benzotriazole, 4-methoxy UV absorbers such as -4'-t-butyldibenzoylmethane; lower alcohols such as ethanol and isopropanol; Min A or a derivative thereof, vitamin B hydrochloride, vitamin B DOO Riparumiteto, vitamin B ₂ dioctanoate, vitamin B _12, vitamin B ₆ or derivative thereof, vitamin B or vitamin B such as derivatives thereof; alpha-tocopherol, beta- Preferred examples include vitamins such as tocopherol, γ-tocopherol and vitamin E acetate, vitamin D, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone and the like; and antibacterial agents such as phenoxyethanol. The cosmetic of the present invention can be produced by treating these components according to a conventional method.

  Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to such examples.

According to the formulation shown below was produced cosmetic inorganic powder of the present invention. That is, using a disper, the mixture was gradually added to the mixture while stirring the mixture at 200 rpm. After the entire amount has been added, it is dispersed for 10 minutes at a speed of 7000 rpm, vacuum defoamed, dried at 20 ° C. under reduced pressure for 4 days, and then pulverized with a pulverizer equipped with a 0.7 mmφ round hole screen. Thus, the cosmetic powder 1 of the present invention was obtained. In the same manner, Comparative Powder 1 (Table 2) obtained by treating sericite that had not been hydrophobized with dimethyldiallylammonium chloride / acrylamide copolymer and dimethylsilanediol hyaluronate, In place of “site”, an inorganic powder 2 for cosmetics of the present invention using sericite that has not been hydrophobized was also prepared.

  Similarly, cosmetic inorganic powder 3 was produced according to the following formulation.

Cosmetic 1 which is the cosmetic of the present invention was produced according to the following formulation. That is, according to the prescription shown below, the ingredients of A are mixed with a Henschel mixer, pulverized with a pulverizer equipped with a 0.9 mmφ round hole screen, sprayed with the ingredients of B while being mixed again with a Henschel mixer, coated, and 1 mm herring Trituration with a pulverizer equipped with a bone screen, added thereto 1/3 times mass light isoparaffin, were kneaded in a kneader, and processed into a slurry of the capillary region, which was filled in a metal dish, under reduced pressure, the solvent The light isoparaffin which is is volatilized, removed and molded to obtain a cosmetic 1 which is the cosmetic of the present invention. In a similar operation, cosmetics 1 cosmetic Comparative Example 1 the powder 1 was replaced by sericite for, (sometimes referred to hereinafter simply siliconized) hydrogen methyl polysiloxanylalkyl down with sintered processed sericite The comparative example 2 substituted with the comparative powder 2, the comparative example 3 substituted with the comparative powder 1, and the cosmetic 2 substituted with the inorganic powder 2 for cosmetics of the present invention were also produced.

<Test Example 1>
After placing 6 parts of 2cm x 4cm on the inner part of the forearm and marking the position of the part so that the position of the part can be seen, one is 40 mg of cosmetic 1, 1 is 40 mg of cosmetic 2, and one is a comparative example 40 mg of 1 was applied to 40 mg of Comparative Example 2, and 40 mg of Comparative Example 3 was applied to one. After spending 4 hours in normal living conditions, remove a 2 cm diameter pulp disk impregnated with 1% ethanolic solution of picric acid at each site for 30 seconds, and quickly remove the entire forearm with warm soapy water. And washed. After washing, the mixture was allowed to stand for 10 minutes, and the color difference (ΔE) between the part other than the part and the part where the pulp disk was placed was measured with a Konica Minolta color difference meter CR400, and the degree of dyeing of picric acid was examined. The results are shown in Table 5. From this, it can be seen that the cosmetic of the present invention remains without losing makeup for a long time and protects the skin. Here, the fact that there are almost no picric acid-stained sites proves that there are no broken parts in the decorative film formed on the skin. Such an effect is expressed by the silanol complex coating, but the degree thereof is more remarkable when the hydrophobized film is present in the lower layer of the silanol complex coating. It can also be seen that the double treatment of the silanol derivative coating treatment is more preferable.

<Test Example 2>
About the said cosmetics 1, cosmetics 2, and Comparative Examples 1-3, the usability evaluation by the specialized panelist was performed. The evaluation items of usability are the covering power and the naturalness of the finish. The evaluation criteria are score 1: not felt, score 2: insufficient, score 3: neither good nor impossible, score 4: excellent . A rating was given. The results are shown in Table 6. From this result, cosmetic inorganic powder of the present invention while utilizing the properties of the substrate, it is understood that prevents its makeup. Further, from the observation result of the cosmetic film with a video microscope, the temporal change of the cosmetic was observed in the comparative example 1 and the comparative example 2 in comparison with the cosmetic 1, and the aggregation of powder was recognized.

  Cosmetics 3 and 4 as cosmetics of the present invention were produced in the same manner as cosmetics 1 in accordance with the formulation in Table 7 below. From the results in Table 8, it was revealed that the cosmetic 1 containing the powder surface-treated with hyaluronic acid dimethylsilanediol had higher moisturizing power than silane complexes with other organic acids or alcohols.

ここで、化粧料用無機粉体１におけるヒアルロン酸ジメチルシランジオールを乳酸モノメチルシランジオールに変えたものを化粧料用無機粉体４とし、これを配合した化粧料を化粧料３、化粧料用無機粉体１におけるヒアルロン酸ジメチルシランジオールをメチルシラノールトリPEG−８−グリセリルココエートに変えたものを化粧料用無機粉体５とし、これを配合した化粧料を化粧料４とした。

Here, what the hyaluronic acid dimethyl silane diol in cosmetic inorganic powder 1 was changed to lactate monomethyl silane di-ol as a cosmetic inorganic powder 4, cosmetics 3 cosmetics containing this, cosmetics Inorganic powder 1 was obtained by changing hyaluronic acid dimethylsilane diol to methylsilanol triPEG-8-glyceryl cocoate as cosmetic inorganic powder 5 .

According to Table 9 below, using the same procedure as in Example 1, cosmetic inorganic powder 6 that is the inorganic powder for cosmetic of the present invention was prepared. Using this inorganic powder 6 for cosmetics, cosmetic 5 which is the cosmetic of the present invention was prepared. When this was evaluated by the method of Test Example 1, the ΔE value was 0.11, and the same effect was confirmed.

In accordance with the following formulation, Cosmetic 6 which is the cosmetic of the present invention was produced. That is, according to the formulation shown below, the ingredients are mixed with a Henschel mixer, pulverized with a pulverizer equipped with a 0.9mmφ round hole screen, sprayed with the ingredients of B while being mixed again with a Henschel mixer, coated, and 1mm herringbone screen Was pulverized with a palverizer equipped with, and filled in a metal pan, and then pressure-molded to obtain cosmetic 6 as the cosmetic of the present invention. When this was evaluated by the method of Test Example 1, a similar effect was confirmed with a ΔE value of 0.13, but the effect did not reach the cosmetic 1 by the slurry method.

The present invention can be applied to cosmetics such as solid powder cosmetics.

Claims (9)

An inorganic powder for cosmetics coated with a silane complex with an organic acid or alcohol, wherein the silane complex with the organic acid or alcohol is hyaluronic acid dimethylsilanediol, lactate monomethylsilanetriol, and methylsilanoltriol. PEG-8-glyceryl coco
One or more selected from ate,
An inorganic powder for cosmetics, wherein the inorganic powder is sericite and / or mica, or hydrophobized titania sericite. The inorganic powder for cosmetics according to claim 1 , wherein a coating amount of the silane complex with the organic acid or alcohol is 0.001 to 20 mass% with respect to the coated powder. The inorganic powder for cosmetics according to claim 1 or 2 , wherein the sericite and / or mica is hydrophobized. The hydrophobic treatment is one or two selected from perfluoroalkyl treatment, perfluoroalkyl phosphate treatment, hydrogen methylpolysiloxane baking treatment, dimethylpolysiloxane baking treatment, metal soap coating treatment, acylated amino acid salt coating treatment. The inorganic powder for cosmetics according to claim 3 , wherein the inorganic powder is a seed or more. The inorganic powder for cosmetics according to claim 3 or 4 , wherein a coating amount by the hydrophobizing treatment is 0.05 to 20% by mass with respect to the coated powder. A cosmetic comprising the inorganic powder for cosmetics according to any one of claims 1 to 5 . The cosmetic according to claim 6 , which is a solid powder cosmetic. The inorganic powder for cosmetics according to any one of claims 1 to 5 is 0.01 to 100% by mass with respect to the coating powder contained in the cosmetics. Cosmetics according to 6 or 7 . Cosmetic base consisting of powder and oil, as a slurry with the addition of solvent, by filling the inner tray to the slurry, characterized in that it is obtained by removing the solvent, according to claim 7 or 8 Solid powder cosmetics.