WO2016189962A1

WO2016189962A1 - Makeup cosmetic not having powdery look and having surface-treated cosmetic powder and pigment-grade titanium oxide blended therein

Info

Publication number: WO2016189962A1
Application number: PCT/JP2016/060110
Authority: WO
Inventors: 敏彦太田; 登志也谷口
Original assignee: 三好化成株式会社
Priority date: 2015-05-25
Filing date: 2016-03-29
Publication date: 2016-12-01
Also published as: JP2016216423A

Abstract

Provided is a makeup cosmetic not having a powdery look, having a more natural finish, having excellent concealment ability, and a natural finish. This makeup cosmetic has blended therein: a cosmetic powder that has been surface treated using dimethiconol having a molecular weight of 300-200,000 and amino silane; and a pigment-grade titanium oxide having an average particle diameter of 0.2-0.5 µm. The makeup cosmetic is characterized by having 5.0-80.0 (% by mass) said cosmetic powder and 0.5-30.0 (% by mass) pigment-grade titanium oxide blended therein, relative to the total amount of makeup cosmetic.

Description

Makeup cosmetic without whitening, which is formulated with surface treated cosmetic powder and pigment grade titanium oxide

The present invention relates to a cosmetic powder surface-treated with dimethiconol and an aminosilane, and to a makeup cosmetic composition containing a pigment-class titanium oxide with high hiding power, which is free from natural whitening even when concealing stains, freckles, small wrinkles, etc. The present invention relates to a makeup cosmetic having a smooth finish.

Conventional makeup cosmetics are cosmetics developed for the purpose of concealing skin problems such as stains, freckles, small wrinkles and uneven color and making the skin color look beautiful. As such concealing means, metal oxides which are white and highly concealable such as lead oxide, zinc oxide and titanium oxide have been used for a long time. In particular, in recent years, titanium oxide having an average particle diameter of 0.2 to 0.5 μm, which has high hiding power, is blended to compensate for high hiding power. However, due to the high content of this titanium oxide, the scattering of light in the wavelength region around 500 nm for blue to green light, which is generally referred to as one of the causes of whitening, is increased, and whitening due to this hiding power is caused. I could not avoid the unnaturalness.
For this reason, providing a cosmetic that can look natural for a long time and cover skin problems has become a major issue for makeup cosmetics. From this point of view, new technological developments that have been made so far include, for example, a technology that gives a skin feeling with a powder having a cover of trouble due to defocusing effect and an outermost coat structure resembling the stratum corneum. And a technology to eliminate whitening with titanium oxide coated iron oxide coated skin oxide pigment or organic red pigment, etc., the correspondence to cosmetics with hiding power within a range that does not impair the usability to a certain extent is remarkably advanced It has been. However, for cosmetics that require even higher hiding power, such technology can not cope with it, and is a technology that embodies cosmetics with high hiding power and a natural finish and excellent usability. Development was desired.

On the other hand, until now, the surface of plate-like powders has been surface-coated with inorganic salts, amino acids, silicones, alkylsilanes, fluorine, etc., and there are many cosmetic powders with hydrophobicity and slipperiness, The surface-treated plate-like powder, the powder cosmetic itself containing it suppresses scattering of light in a wavelength range around 500 nm, generally referred to as blue to green light, and has high coverage, The powder for plate-like cosmetics which loses whitening and brings about a natural finish was not provided now.

JP 10-130117 Japanese Patent Application Publication No. 2003-55151 Patent Document 1: JP-A-2007-145778

The present invention suppresses scattering of light in a wavelength region around 500 nm associated with blue to green light, which is generally referred to as one of the causes of whitening in cosmetics having high hiding power, and there is no whitening. An object is to provide a makeup cosmetic that has a natural finish and covers skin problems.

(1) The present invention is a makeup cosmetic comprising a cosmetic powder surface-treated with dimethiconol having a molecular weight of 300 to 200,000 and an aminosilane and pigment grade titanium oxide having an average particle diameter of 0.2 to 0.5 μm. And 5.0 to 80.0 (mass%) of the powder for the cosmetic and 0.5 to 30.0 (mass%) of the pigment grade titanium oxide with respect to the whole makeup cosmetic. The present invention relates to a formulated makeup cosmetic.

The makeup cosmetics which concern on this invention can mention the following as a preferable aspect.
(2) The pigment grade titanium oxide may be uncoated or coated, but preferably coated, for example, silicone, silicone resin, fluorine, alkylsilane, oil, metal soap and amino acid Pigment grade titanium oxide treated with a coating material selected from the group consisting of, but not limited to these examples.
(3) The powder for cosmetics is blended with 20.0 to 80.0 (mass%) and the pigment grade titanium oxide is blended for 2.0 to 20.0 (mass%) with respect to the whole makeup cosmetic. The makeup cosmetics as described in (1) or (2).
(4) The makeup according to any one of (1) to (3), containing 5.0 to 70 (mass%) of the cosmetic powder treated with dimethiconol and aminosilane relative to the whole makeup cosmetic. Cosmetics.
(5) The make-up cosmetic according to any one of (1) to (4), wherein the surface treatment is carried out at a compounding ratio of the dimethiconol and the aminosilane of 100/5 to 100/25 (% by mass).
(6) The aminosilane is N-2 (aminoethyl) 3-aminopropyltrimethoxysilane, N-2 (aminoethyl) 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane The makeup cosmetic according to any one of (1) to (5), which is at least one aminosilane selected from the group consisting of ethoxysilanes.
(7) The makeup cosmetic according to any one of (1) to (6), wherein the aminosilane is 3-aminopropyltriethoxysilane.

The cosmetic powder surface-treated with dimethiconol and aminosilane and the powder cosmetic containing a predetermined pigment grade titanium oxide are whitened by the cosmetic powder while having high hiding power by the pigment grade titanium oxide. It suppresses scattering of light in the wavelength range around 500 nm, which is one of the causes of floating, and provides a natural finish without whitening.

Hereinafter, the present invention will be described in detail.
(1) Dimethiconol Dimethiconol used in the present invention refers to silicone having a molecular weight of 300 to 200,000 having hydroxyl groups at both ends of a linear dimethylpolysiloxane skeleton. This dimethiconol is in the form of oil, a dilution with another silicone oil, or a dimethiconol emulsion consisting of an emulsion with water. Emulsions of dimethiconol include those obtained by mechanically emulsifying an oil of dimethiconol and those obtained by emulsion polymerization using low molecular weight siloxane as a starting material. Any type of emulsion may be used as long as the emulsifier upon emulsification is highly safe.

Dimethiconol used in the present invention can be suitably used in the form of oil and emulsion. If the molecular weight is less than 300, the volatility is high and the loss in the surface treatment step increases, making it difficult to obtain a product of constant quality. If the molecular weight is more than 200,000, the viscosity is high, the reactivity is poor, and handling is difficult.

(2) Aminosilane As the aminosilane used in the present invention, N-2 (aminoethyl) 3-aminopropyltrimethoxysilane, N-2 (aminoethyl) 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, An example is 3-aminopropyltriethoxysilane. 3-aminopropyltriethoxysilane is preferred from the viewpoint of the safety of reaction byproducts.

(3) Powder for cosmetics surface-treated with dimethiconol and aminosilane The compounding ratio of dimethiconol and aminosilane in the powder for cosmetics treated with dimethiconol and aminosilane used in the present invention is dimethiconol / aminosilane = 100/5 to 100/25 (Mass%) is preferable. When the weight ratio of aminosilane is less than 5.0% by weight, the fixing power of the treatment agent to the powder is weak, and when it is blended in cosmetics, the light scattering suppression effect in the wavelength range around 500 nm is low, and the whitening prevention effect Is low. In addition, when the weight ratio of aminosilane is more than 25.0% by mass, the fixing power of the treatment agent to the powder is increased, but when it is blended in a cosmetic, it lacks the uniform dispersibility of titanium oxide and has a natural finish. Lose.

As a suitable example of the compounding ratio of dimethiconol and aminosilane, the compounding ratio of dimethiconol and aminosilane mixed and heat-dried at a temperature of about 130 ° C is desirable and the compounding ratio is not sticky and does not show rubber elasticity. .
In general, silicone compositions that do not exhibit rubber elasticity are referred to as silicone gels. As a method of defining this silicone gel, there is a measuring method by a durometer defined in ISO 7619-1 as a method of measuring rubber hardness. In this measurement method, there is a measurement method using durometer type AO which can measure soft rubber hardness, but the above-mentioned reaction product of the present invention belongs to silicone gel, and the preferred silicone gel measurement value according to ISO 7619-1 is less than 10, More preferably, it is less than 5, still more preferably 0.
As such a silicone cross-linked product of dimethiconol and aminosilane, a solid referred to as silicone elastomer corresponds to this. The silicone cross-linked product suitable in the present invention is a silicone having no rubber elasticity and is generally referred to as a silicone gel and has properties which can not be measured by a rubber hardness tester.

(4) Powder for Cosmetics for Surface Treatment The surface-treated powder used in the present invention is a powder for cosmetics to be blended in a cosmetic. The cosmetic powder may be any of generally used inorganic powder, organic powder or inorganic / inorganic complex, inorganic / organic complex, organic / organic complex, and one kind alone or two kinds or more suitably Powders which can be used in combination, which are safe for the human body and the skin, and which can be substantially used in cosmetics and which have a particle diameter in the entire range can be applied. In addition, as long as the geometrical aspect is usually used for a cosmetic, it may be any shape such as spherical, hemispherical, star, polyhedron, spindle, needle, plate, etc. It may be either porous or porous.

The average particle size is preferably in the range of 0.01 to 500 μm, more preferably 0.1 to 100 μm. If the particle size is less than 0.01 μm, strong aggregation may occur to reduce the feeling of use or lightness, and if it is more than 500 μm, the physical roughness may be strong and the adhesion to the skin may be reduced. In addition, according to the shape of powder particle, an average particle diameter selects suitably according to principles, such as a microscopy, a light scattering method, a laser analysis method, a liquid phase sedimentation method, an electrical resistance method, and measures it.

As inorganic powder, sericite, natural mica, calcined mica, synthetic mica, synthetic sericite, alumina, mica, talc, kaolin, bentonite, smectite, montmorillonite, hectorite, zeolite, calcium carbonate, magnesium carbonate, anhydrous silica , Magnesium silicate, aluminum silicate, aluminum magnesium silicate, calcium silicate, barium silicate, strontium silicate, calcium phosphate, magnesium oxide, barium sulfate, magnesium aluminometasilicate, iron oxide, chromium oxide, titanium oxide, Zinc oxide, cerium oxide, aluminum oxide, magnesium oxide, chromium hydroxide, bitumen, ultramarine, aluminum hydroxide, magnesium sulfate, silicon carbide, metal tungstate, magnesium aluminate, Sodium aluminosilicate, chlorohydroxyaluminum, clay, hydroxyapatite, ceramic powder, boron nitride, aluminum nitride, titanium nitride, silicon nitride, silicone carbide, cobalt titanate, iron titanate, lithium cobalt titanate, cobalt aluminate, Inorganic blue pigment, aluminum powder, gold powder, silver powder, iron powder, platinum powder, low-order titanium oxide, fine-grain titanium oxide, butterfly-like barium sulfate, petal-like zinc oxide, tetrapot-like zinc oxide, fine-particle zinc oxide, titanium oxide coated Mica, titanium oxide coated mica, titanium oxide coated silica, titanium oxide coated synthetic mica, bismuth oxychloride, titanium oxide coated talc, fish scale foil, titanium oxide coated colored mica, titanium oxide coated borosilicate (sodium / calcium), titanium oxide Coated borosilicate (calcium / aluminium), zinc oxide coated talc, zinc oxide coated mica, zinc oxide coated silica, bengala coated mica, bengala coated mica titanium, bengala, black iron oxide coated mica titanium, carmic acid coated mica titanium, carmine, Bituminous coated mica titanium, stainless steel powder, kappa powder, tourmaline powder, mango violet, cobalt violet, glass fiber, carbon fiber, silicon carbide fiber, alumina fiber, β-wollastonite, zonolite, potassium titanate fiber, aluminum borate fiber, Metal powder pigments such as basic magnesium sulfate fiber, silicon nitride fiber, metal tungstate, aluminum powder and the like can be mentioned.

As the organic powder, polyamide, polyacrylic acid, acrylic ester, polyester, polyethylene, polypropylene, polystyrene, styrene / acrylic acid copolymer, divinylbenzene, styrene copolymer, polyurethane, vinyl resin, urea resin, melamine resin , Benzoguanamine, polymethylbenzoguanamine, polyethylene terephthalate, polymethyl methacrylate such as polymethyl methacrylate, cellulose, silk, phenolic resin, epoxy resin, epoxy resin, polycarbonate, silicone resin powder, silicone rubber powder, Teflon (registered trademark) powder, etc. fluorocarbon resin Powders such as powders, zinc stearate, aluminum stearate, calcium stearate, magnesium stearate, zinc myristate, magnesium myristate Metal soaps such as zinc cetyl phosphate, calcium cetyl phosphate, zinc sodium cetyl phosphate etc., acryloyl chloride, alkyl phosphate, chitin, chitosan, polysaccharide powder, protein powder, carbon black, and organic dyes can be further mentioned. As Rei, Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 230 No. Red 401, Red 505, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Yellow No. 204, Yellow No. 401, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 404, Blue No. 404, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange 207 Tar dyes etc., carminic acid, laccaic acid, carthamin, brazilin, and natural dyes such as crocin.

Furthermore, the powder to be surface-treated in the present invention has, for example, aluminum, calcium, magnesium, cerium, silicon, zirconium, titanium, zinc, iron, cobalt, etc., in order to improve the affinity and adhesion to the surface treatment agent. It may be coated with at least one oxide or hydrous oxide of manganese, nickel and tin.

(5) Surface Treatment In the present invention, the above-mentioned various powders may be used as they are for the surface treatment of the present invention, or treated powders subjected to other conventionally known surface treatments may be used. As other surface treatment, for example, surface treatment with fluorine compound, surface treatment with silicone, surface treatment with silicone resin, surface treatment with pendant, surface agent treatment with silane coupling, surface treatment with titanium coupling Surface treatment with oil, surface treatment with N-acylated lysine, surface treatment with metal soap, surface treatment with amino acid, surface treatment with inorganic compound, plasma surface treatment, mechanochemical surface treatment, etc. may be mentioned. In addition, after the surface treatment of the present invention is performed, the various surface treatments may be performed according to the formulation of the cosmetic to be blended and the purpose thereof, as long as the effects of the present invention are not impaired.

As a method of treatment, the following may be mentioned as dry treatment. (A) Dry processing of stirring, mixing, heating and drying dimethiconol and aminosilane that form powder and silicone without using a solvent. (B) Dry process using a small amount of water or alcohol to form silicone, stirring, mixing, heating and drying dimethiconol and aminosilane and powder. Moreover, the following are mentioned as a wet process. (C) A wet treatment in which a large amount of water or a slurry of alcohol, silicone and powder is formed, and then the solvent is distilled off and the residue is heated and dried. The treatment method is generally selected from any of the above, but a wet method is preferable from the viewpoint of more uniform treatment. The alcohol referred to in the present invention is ethanol or isopropyl alcohol.

The heating and drying conditions are preferably in the range of 100 to 150 ° C. in order to avoid coloring of the aminosilane by heating. At temperatures lower than 100 ° C., the reaction rate is slow and the production efficiency is poor. Drying above 150 ° C. causes thermal degradation of the aminosilane and the white powder turns yellow.

In addition, in order to enhance the reactivity and the adhesion to the powder particles when processing dimethiconol and aminosilane, an acidic substance or an alkaline substance may be added. The acidic substance is not particularly limited, and examples thereof include organic acids such as lactic acid, citric acid, malic acid and succinic acid, hydrochloric acid, sulfuric acid, phosphoric acid, aluminum chloride, zinc chloride, magnesium chloride, polyaluminum chloride, aluminum sulfate, zinc sulfate Etc. can be used.

The alkaline substance is not particularly limited, and examples thereof include alkali metal hydroxides such as potassium hydroxide, sodium hydroxide and lithium hydroxide, alkaline earth metal hydroxides such as calcium hydroxide, magnesium hydroxide and barium hydroxide, Alkali metal carbonates such as potassium carbonate and sodium carbonate, ammonia, triethanolamine and the like can be used.

(6) Makeup Cosmetics The makeup cosmetic of the present invention includes powders, oils, surfactants, lower alcohols, polyhydric alcohols, moisturizers, preservatives, polymers, antioxidants, UV protection other than the above-mentioned present invention. It is possible to blend agents, perfumes, various drugs and the like in a qualitative and quantitative range that does not impair the intended effect of the present invention.

As powder other than the component in this invention which can be mix | blended to this invention, the powder normally used in cosmetics can be mentioned. For example, talc, kaolin, mica, sericite (sericite), muscovite, biotite, phlogopite, synthetic mica, vermiculite, magnesium carbonate, calcium carbonate, aluminum carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate , Tungstate metal salt, silica, zeolite, calcined calcium sulfate, calcined gypsum, calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, inorganic powder of metal soap (zinc myristate, calcium palmitate, aluminum stearate etc.), polyamide resin Organic powder such as powder, polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder and the like.

Inorganic white pigments such as titanium dioxide and zinc oxide: inorganic red pigments such as iron oxide (bengara) and iron titanate: inorganic brown pigments such as γ-iron oxide: inorganic yellow pigments such as yellow iron oxide and yellow earth : Inorganic black pigments such as black iron oxide, carbon, low-order titanium oxide, etc .: inorganic purple pigments such as mango violet, cobalt violet etc .: inorganic green pigments such as chromium oxide, chromium hydroxide, cobalt titanate etc: ultramarine blue, bitumen blue Inorganic blue pigments such as: titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, pearlescent pigments such as bismuth oxychloride, fish paste, etc .: metals such as aluminum powder, copper powder Powder pigment: Red 202, red 205, red 220, red 228, red 405, orange 203, orange 204, yellow 20 Organic pigments such as No. 5, Yellow 401, Blue 404: Red No. 3, Red 104, Red No. 227, Red No. 401, Orange No. 205, Yellow No. 4, Yellow No. 202, Green No. 3, Green No. 3, Blue No. 1 And organic pigments such as zirconium, barium, aluminum lake, etc. Natural pigments such as chlorophyll, β-carotene and the like can be mentioned.

As an oil component which can be mix | blended with the makeup cosmetics of this invention, the oil component normally used in cosmetics can be mentioned. For example, as fats and oils, avocado oil, camellia oil, macadamia nut oil, mink oil, olive oil, castor oil, jojoba oil, triglycerin, glycerin trioctanoate etc .: As solid fats and oils, coconut oil, hardened coconut oil, palm oil, beef tallow, Goat oil, wax wax, hydrogenated castor oil, etc .: wax, beeswax, cannaura wax, carnauba wax, ibotabalo, iridescent wax, spermaceti wax, lanolin, reduced lanolin etc., hydrocarbon, liquid paraffin, squalane, paraffin, ceresin, vaseline, squalene, micro Crystalline wax etc .: As higher fatty acids, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, isostearic acid, linoleic acid, linolenic acid etc.

As higher alcohols, lauryl alcohol, cetyl alcohol, stearyl alcohol, behnyl alcohol, oleyl alcohol, monostearyl glycerol ether, monopalmityl glycerol ether, cholesterol, phytosterol, isostearyl alcohol etc .: As ester oil, isopropyl myristate, octane Acids cetyl, octyldodecyl myristate, butyl stearate, decyl oleate, ethylene glycol dioctanoate, diisostearyl malate, trimethylolpropane trioctanoate, pentaerythritol tetraoctanoate, glycerol trioctanoate, trimethylolpropane triisostearate, Glycerin triisostearate, ethyl acetate, butyl acetate, amyl acetate etc .: Silico Examples of the silicone oil include dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, silicone resin forming a three-dimensional network structure, silicone rubber, etc. It is not a thing. In addition, these oils can be used by optionally selecting one or two or more in the makeup cosmetic of the present invention.

In the makeup cosmetic of the present invention, a surfactant which can be usually blended in the cosmetic can be used regardless of the presence or absence of its ionicity. Specifically, as an anionic surfactant, for example, a base for soap, a fatty acid soap such as sodium laurate, a higher alkyl sulfate ester salt such as sodium lauryl sulfate, polyoxyethylene (hereinafter abbreviated as POE) lauryl sulfate triethanol Alkyl ether sulfuric acid ester salts such as amines, N-acyl sarcosine acids such as sodium lauroyl sarcosine, higher fatty acid amide sulfonates such as coconut oil fatty acid methyl taurid sodium, phosphoric acid ester salts such as POE stearyl ether phosphate, Sulfosuccinates such as sodium 2-ethylhexyl sulfosuccinate, alkylbenzene sulfonates such as sodium dodecylbenzene sulfonate, N-acyl glutamates such as N-stearoyl glutamic acid disodium, hydrogenated coconut oil Higher fatty acid ester sulfates such as sodium fatty acid glycerin sulfate, sulfated salts such as funnel oil, POE alkyl ether carboxylate, POE alkyl allyl ether carboxylate, α-olefin sulfonate, higher fatty acid ester sulfonate And secondary alcohol sulfates, higher fatty acid alkylolamide sulfates, sodium lauroyl monoethanolamide succinate, N-palmitoyl aspartic acid ditriethanolamine, casein sodium and the like.

Examples of cationic surfactants include alkyl trimethyl ammonium salts such as stearyl trimethyl ammonium chloride, dialkyl dimethyl ammonium salts such as distearyl dimethyl ammonium chloride, alkyl pyridinium salts such as cetyl pyridinium chloride, alkyl quaternary ammonium salts, alkyl dimethyl benzyl ammonium And salts thereof, alkylisoquinolinium salts, dialkylmorphonium salts, POE alkylamines, alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, benzethonium chloride and the like.

As a double-sided surfactant, for example, 2-undecyl-N, N. Examples thereof include imidazoline amphoteric surfactants such as sodium N- (hydroxyethylcarboxymethyl) -2-imidazoline, and betaine amphoteric surfactants such as lauryl dimethylaminoacetic acid betaine.

Examples of lipophilic nonionic surfactants include sorbitan fatty acid esters such as sorbitan monoisostearate and sorbitan sesquioleate, glycerin polyglycerin fatty acids such as glycerin monostearate, and propylene glycol fatty acids such as propylene glycol monostearate Esters, hydrogenated castor oil derivatives, glycerin alkyl ethers and the like can be mentioned.

Examples of hydrophilic nonionic surfactants include POE sorbitan fatty acid esters such as POE sorbitan monostearate POE sorbite fatty acid esters such as POE sorbite monooleate POE glycerol fatty acid esters such as POE glycerol monoisostearate POE stearyl ether, POE alkyl ether such as POE cholestanol ether POE alkyl phenyl ether such as POE nonyl phenyl ether, pluronic type such as pluronic POE, polyoxypropylene (hereinafter abbreviated as POP) POE such as cetyl ether・ POE alkyl ether, tetra POE such as tetronic, tetra POP ethylene diamine condensate, POE castor oil, POE castor oil such as POE hydrogenated castor oil Body, POE beeswax lanolin derivative, alkanolamide, POE propylene glycol fatty acid ester, POE alkylamine, POE fatty acid amide, sucrose fatty acid ester, POE nonylphenylformaldehyde condensate, alkylethoxydimethylamine oxide, trioleyl phosphate etc. However, it is not limited to the above-mentioned surfactant. In addition, these surfactants can be optionally selected and blended one or two or more in the makeup cosmetic of the present invention.

The form which the makeup cosmetics of this invention can take is not specifically limited, For example, a makeup base, foundation, white powder, blusher, lipstick, mascara, eye shadow, an eyeliner etc. can be taken.

EXAMPLES The present invention will be specifically described with reference to the following examples, but the present invention is not limited to these examples. The compounding amount is% by weight unless otherwise specified.

[Production of cosmetic powder treated with dimethiconol and aminosilane]
Example 1 (Dimethiconol / Aminosilane Ratio = 100/5 Mass%)
Charge 1 kg of Talc JA-13R (Asada Powder Co., Ltd.) into a universal mixer, and mix a mixed aqueous solution of 550 g of water and 0.9 g of aminopropyltriethoxysilane (KBE-903: Shin-Etsu Chemical Co., Ltd.) and mix for 10 minutes Do. Furthermore, 18 g of dimethiconol (molecular weight 400, viscosity 16 cst) was added and mixed and stirred for 15 minutes to make a powder mixture into a soft paste. It was taken out and dried at 130 ° C. for 16 hours in a dryer. The mixture was crushed by a pulverizer to obtain surface-treated 3% talc.

Example 2 (Dimethiconol / Aminosilane Ratio = 100/20 Mass%)
In a 20-liter container, 5 liters of water and 1 kg of sericite FSE (Sanshin Mining Co., Ltd.) are charged, and dispersed at 2000 rpm for 5 minutes in a Disper mixer (Primemics AM-40) at an internal temperature of 20 ° C. It was in the state of slurry. A water emulsion of dimethiconol (Production Example 1 below) 92.7 g was added and stirred at 2500 rpm for 5 minutes. Then, 166 g of a 5% by weight aqueous solution of KBE-903 was added. The pH was adjusted to 10.5 with an aqueous 1 N NaOH solution, and then the reaction was carried out with stirring at 3000 rpm for 30 minutes. After filtration with a centrifugal dehydrator and washing with 5 liters of water, the dewatered cake was dried in a drier at 130 ° C. for 16 hours. After drying, it was crushed by a pulverizer to obtain surface treated 5% sericite.

Example 3 (Dimethiconol / Aminosilane Ratio = 100/20 Mass%)
5 liters of water and 1 kg of mica Y-2300 (Yamaguchi Mica Co., Ltd.) are charged in a 20 liter container, and dispersed at 2000 rpm for 5 minutes with a Disper mixer (Primemics: AM-40) at an internal temperature of 20 ° C. It was in the state of slurry. A water emulsion of dimethiconol (Production Example 1 below) 92.7 g was added and stirred at 2500 rpm for 5 minutes. Then, 166 g of a 5% by weight aqueous solution of KBE-903 was added. The pH was adjusted to 10.5 with an aqueous 1 N NaOH solution, and then the reaction was carried out with stirring at 3000 rpm for 30 minutes. After filtration with a centrifugal dehydrator and washing with 5 liters of water, the dewatered cake was dried in a drier at 130 ° C. for 16 hours. After drying, it was crushed by a pulverizer to obtain surface-treated 5% mica.

Production Example 1 (Production of Dimethiconol Emulsion)
In a 2-liter polyethylene beaker, 450 g of octamethylcyclotetrasiloxane, 500 g of ion-exchanged water, and 6.75 g of sodium lauroyl methyl taurine are prepared and premixed by a homomixer stirring at 2,000 rpm, and then 4 g of citric acid is added. The temperature was raised to 0 ° C., and emulsion polymerization was performed for 24 hours by a homomixer 5,000 rpm. A water emulsion of dimethiconol was obtained by emulsification dispersion once at 50 MPa with a table-top pressure homogenizer (manufactured by APV Gaulin). Then, 10% sodium carbonate was added to adjust to pH 7 to obtain a water emulsion. The water emulsion was dried at 105 ° C. for 3 hours, and the solid content obtained by volatilizing the water was determined to have a molecular weight in terms of PS by GPC of 100,000. The solids content was 45.0%.

[Examples 4 to 9 and Comparative Examples 1 to 9]
Powder cosmetic (powder foundation) having the composition shown in Table 1: Examples 4 to 9, Table 2: Comparative Examples 1 to 6, and Table 3-1: Comparative Examples 7 to 9 were prepared by the following manufacturing method.

[Manufacturing Method] Examples 4 to 9
A: Components (1) to (12) were HANIL LAB. Grind, mix and agitate with MIXER 4 times for 30 seconds.
B: Ingredients (13) to (17) are mixed in advance uniformly at 50 ° C to 60 ° C.
C: The components (13) to (17) are dropped into a pulverized powder.
D: HANIL LAB. Mix and stir four times with MIXER for 30 seconds.

[Production Method] Comparative Examples 1 to 6
A: Components (1) to (13) were HANIL LAB. Grind, mix and agitate with MIXER 4 times for 30 seconds.
B: Components (14) to (18) are mixed in advance uniformly at 50 ° C to 60 ° C.
C: Add components (14) to (18) dropwise to the pulverized powder.
D: HANIL LAB. Mix and stir four times with MIXER for 30 seconds.

[Production Method] Comparative Examples 7 to 9
A: Components (1) to (11) were treated as HANIL LAB. Grind, mix and agitate with MIXER 4 times for 30 seconds.
B: Ingredients (12) to (16) are mixed in advance uniformly at 50 ° C to 60 ° C.
C: Add ingredients (12) to (16) dropwise to the pulverized powder.
D: HANIL LAB. Mix and stir four times with MIXER for 30 seconds.

* 1: TALC JA-46R (Talc, manufactured by Asada Powder Co., Ltd.)
* 2: SA TALC JA-46R (dimethicone coated talc, Miyoshi Kasei Co., Ltd.)
* 3: SAST-UFTR-Z (dimethicone / stearic acid coated fine particle titanium oxide, manufactured by Miyoshi Kasei Co., Ltd.) fine particle titanium oxide with an average particle diameter of 35 nm coated with dimethicone / stearic acid * 4: SA-PFC Pigment coated titanium oxide with an average particle diameter of 0.25 μm coated with dimethicone-407 (dimethicone coated pigment grade titanium oxide, manufactured by Miyoshi Kasei Co., Ltd., PFC-407: Typek PFC 407, manufactured by Ishihara Sangyo Co., Ltd.)
* 5: SA-YELLOW-LL-100P, SA-RED R-516PS, SA-BLACK BL-100P (dimethicone coated iron oxide, manufactured by Miyoshi Kasei Co., Ltd.)

* 6: SI-TALC JA-13R (Methicon-coated talc, Miyoshi Kasei Co., Ltd.)
* 7: SA-TALC JA-13R (dimethicone coated talc, manufactured by Miyoshi Kasei Co., Ltd.)
* 8: SA-SERICITE FSE (dimethicone coated sericite, manufactured by Miyoshi Kasei Co., Ltd.)
* 9: SA-MICA Y-2300 (dimethicone coated mica, manufactured by Miyoshi Kasei Co., Ltd.)
* 10: TALC-JA-46R (Talc, manufactured by Asada Powder Co., Ltd.)
* 11: SA-TALC JA-46R (dimethicone coated talc, Miyoshi Kasei Co., Ltd.)
* 12: SAST-UFTR-Z (dimethicone / stearic acid coated fine particle titanium oxide, manufactured by Miyoshi Kasei Co., Ltd.)
* 13: SA-PFC-407 (dimethicone coated pigment grade titanium oxide, manufactured by Miyoshi Kasei, PFC-407: Typek PFC 407, manufactured by Ishihara Sangyo Co., Ltd.)
* 14: SA-YELLOW-LL-100P, SA-RED R-516PS, SA-BLACK BL-100P (dimethicone coated iron oxide, manufactured by Miyoshi Kasei Co., Ltd.)

* 15: TALC JA-13R (Talc, manufactured by Asada Powder Co., Ltd.)
* 16: SERICITE FSE (Serisite, manufactured by Sanshin Mining Co., Ltd.)
* 17: MICA Y-2300 (Mica, manufactured by Yamaguchi Mica Co., Ltd.)
* 18: TALC-JA-46R (Talc, manufactured by Asada Powder Co., Ltd.)
* 19: SAST-UFTR-Z (dimethicone / stearic acid coated fine particle titanium oxide, manufactured by Miyoshi Kasei Co., Ltd.)
* 20: SA-PFC-407 (dimethicone coated pigment grade titanium oxide, manufactured by Miyoshi Kasei, PFC-407: Typek PFC 407, manufactured by Ishihara Sangyo Co., Ltd.)
* 21: SA-YELLOW-LL-100P, SA-RED R-516PS, SA-BLACK BL-100P (dimethicone coated iron oxide, manufactured by Miyoshi Kasei Co., Ltd.)

[Evaluation method 1: Spectroscopic measurement]
1. Spectrometer: CM-700d, manufactured by KONIKA MINOLTA 2. Illumination and light receiving optical system: SCE (regular reflection light removal)
3. Measurement method A sensory evaluation expert panel of 5 persons is provided with four fixed area areas (5 cm × 6 cm) on the forearm, and 10 mg of a sample is uniformly applied with a puff. Next, the spectrum is measured with CM-700d, and the average value of four points is calculated. Next, the average value of the reflectance at the measurement wavelength of 470 nm to 530 nm is calculated.

[Measurement value, evaluation result]

As is clear from the results of Table 4-1, the powder foundation containing the cosmetic powder of the present invention example 1, 2 and 3 is a powder foundation containing the existing cosmetic powder so far. By comparison, it turned out that it has the outstanding white floating prevention effect.

[Evaluation method 2: sensory evaluation]
Evaluation of feeling in use by sensory evaluation using the sensory evaluation panel of 5 persons using Comparative Examples 2, 3 and 6 shown in Table 1 and Comparative Examples 2, 3 and 6 shown in Table 1 and the following 5 items and each Conducted by consultation according to the judgment criteria.

As shown in Table 5, the cosmetic powder surface-coated with the aminosilane and dimethiconol according to the present invention and the powder cosmetic containing pigment grade titanium oxide are of pigment grade titanium oxide in order to strengthen the hiding power. Even when the content is increased, it has a natural finish without whitening as compared with powder cosmetics containing conventional cosmetic powders. Good results were also obtained with respect to the deterioration of the slipperiness and the color blur due to aging, which tend to occur when the content of pigment grade titanium oxide is high.

The cosmetic powder surface-treated with dimethiconol and aminosilane and the powder cosmetic containing a predetermined pigment grade titanium oxide are whitened by the cosmetic powder while having high hiding power by the pigment grade titanium oxide. Industrial applicability is large by suppressing scattering of light in a wavelength region around 500 nm, which is one of the causes of floating, and providing a natural finish without whitening.

Claims

A makeup cosmetic comprising a cosmetic powder surface-treated with dimethiconol having a molecular weight of 300 to 200,000 and an aminosilane and pigment grade titanium oxide having an average particle diameter of 0.2 to 0.5 μm. A makeup cosmetic comprising the cosmetic powder in an amount of 5.0 to 80.0 (% by mass) and the pigment grade titanium oxide in an amount of 0.5 to 30.0 (% by mass) based on the whole.
The makeup cosmetic according to claim 1, wherein the pigment grade titanium oxide is a coated pigment grade titanium oxide.
The powder for cosmetics is blended with 20.0 to 80.0 (mass%) and the pigment grade titanium oxide is blended for 2.0 to 20.0 (mass%) with respect to the whole makeup cosmetic. The makeup cosmetics as described in 1 or 2.
The makeup cosmetic according to any one of claims 1 to 3, containing 5.0 to 70 (mass%) of the cosmetic powder treated with dimethiconol and aminosilane relative to the whole makeup cosmetic.
The make-up cosmetic according to any one of claims 1 to 4, wherein the surface treatment is carried out at a compounding ratio of the dimethiconol and the aminosilane of 100/5 to 100/25 (% by mass).
The aminosilane is selected from N-2 (aminoethyl) 3-aminopropyltrimethoxysilane, N-2 (aminoethyl) 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane The makeup cosmetic according to any one of claims 1 to 5, which is at least one aminosilane selected from the group consisting of
The make-up cosmetic according to any one of claims 1 to 6, wherein the aminosilane is 3-aminopropyltriethoxysilane.