JP2008031137A - Composite organic powder and cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide uniformly coated composite organic powder excellent in an outline-emphasizing effect, and to provide a cosmetic compounded with the powder. <P>SOLUTION: The composite organic powder is characterized by coating the surface of semi-spherical to approximately semi-spherical organic powder with a colored pigment treated with an octyltrialkoxysilane and/or an organic dye treated with the same, and the cosmetic compounded with the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, the surface of an organic powder having a hemispherical shape to a substantially hemispherical surface is coated with a colored pigment and / or an organic coloring matter treated with octyltrialkoxysilane, so that the surface of the organic powder is more uniformly colored and / or The present invention relates to a composite organic powder and a cosmetic that are coated with an organic pigment and are excellent in the effect of enhancing the outline of a face or a three-dimensional object.

  When we coat the surface of organic powder having a hemispherical to almost hemispherical shape with an inorganic or organic material, the brightness at an angle of 70 to 80 degrees away from the incident angle of light is emphasized. It has been found that optical materials can be obtained.

  However, even when trying to coat the organic powder in a hemispherical form uniformly with colored pigments and / or organic dyes, specific dyes can be coated uniformly, but other dyes and colored pigments can only be unevenly coated. Will occur. It is unclear why such a phenomenon occurs, and countermeasures have been required.

  As a result of intensive studies, the present inventors have found that this phenomenon involves static electricity. Therefore, when mechanical coating treatment is performed using static electricity, the surface of the organic powder having a hemispherical to substantially hemispherical shape can be easily and uniformly coated with the color pigment and / or the organic dye. It became. That is, the present inventors have found that a uniform treatment can be achieved by coating a hemispherical organic powder, which is a base particle, with a color pigment and / or an organic dye having a surface treatment excellent in charging characteristics. Therefore, as a result of examining various surface treatment agents, it is possible to treat organic dyes among various surface treatments, and as a highly effective one, negative surface charge can be obtained by surface treatment with octyltrialkoxysilane. It has been found that it increases and easily becomes a uniform coating state. Furthermore, since the treatment can be easily performed, it has been found that even when mechanically coated, the organic powder having a hemispherical shape has little damage and the shape is properly maintained. And the composite organic powder obtained using such a method showed the performance excellent in the effect which emphasizes the outline of a face and a solid object.

The invention described in the present application basically includes the following configuration.
[1] A composite organic powder, wherein the surface of a hemispherical to substantially hemispherical organic powder is coated with a color pigment treated with octyltrialkoxysilane and / or the treated organic dye.
[2] A cosmetic comprising the composite organic powder according to [1] above.

  In the present invention, the surface of the hemispherical to substantially hemispherical organic powder is coated with the octyltrialkoxysilane-treated color pigment and / or the treated organic dye, so that the surface of the organic powder is more uniformly colored and / or It is obvious to provide a composite organic powder coated with an organic pigment and excellent in the effect of enhancing the contour of a face or a three-dimensional object, and a combination cosmetic thereof.

Hereinafter, the present invention will be described in detail.
The constitution of the present invention resides in a composite organic powder characterized in that the surface of a hemispherical to substantially hemispherical organic powder is coated with a colored pigment and / or an organic dye that has been treated with octyltrialkoxysilane. The organic powder used in the present invention is not particularly limited as long as it has an average primary particle diameter in the range of 1 to 1000 μm and has a hemispherical to substantially hemispherical form including a substantially lens-like form. It may or may not contain pigments or pigments inside, for example, non-spherical fine particle polymer LMX made by Sekisui Plastics Co., Ltd., which is supplied industrially, whether synthetic or natural, is known. (Refer to http://www.tech-p.com/product/development/biconvex.html. Searched on April 29, 2005) Also, wheat starch and tapioca starch have similar forms and are useful.
In addition, the average primary particle diameter referred to in the present invention is a value measured using (volume) average particle diameter or particle diameter measured from an electron micrograph when measuring the particle size distribution using laser light. means.

  In addition to being able to obtain a peculiar optical effect by making it hemispherical to substantially hemispherical, when blended into cosmetics, the amount of blended into the product is limited because the spherical powder is too slippery As a result, there is a problem that the effective effect is difficult to be obtained, but since there is no substantial limitation on the blending amount in the preparation when it is in a hemispherical to substantially hemispherical form, there is a merit that it is easy to achieve both feel and effect.

  When resin powder is used as the hemispherical organic powder used in the present invention, a resin formed from a synthetic resin such as an acrylic resin, a methacrylic resin, a vinyl resin such as a styrene resin, or a silicone resin is used. In addition, wheat starch and tapioca starch can be used.

  In the present invention, the surface of the hemispherical to substantially hemispherical organic powder is coated with a colored pigment and / or an organic dye that has been treated with octyltrialkoxysilane. The coating method is a mechanical coating method. , Spray drying, fluidized bed drying, wet coating treatment, dry coating treatment, and the like, and mechanical coating is particularly preferable. The term “mechanical” refers to coating using a medium stirring type mill such as a ball mill, an attritor (for example, an attritor manufactured by Mitsui Mining Co., Ltd.), a bead mill, or a grinding device. As the medium, beads or rings such as zirconia, alumina, ceramics, and stainless steel can be used, and the size may be appropriately selected according to the apparatus. Further, the rotational speed of the apparatus varies depending on the size of the medium, the filling rate, etc., but it is important that the shape of the hemispherical to substantially hemispherical organic powder is not changed by the treatment. Since the shape of the hemisphere is unstable, there is a problem that if the processing conditions are strong, the peripheral portion is lost and fine powder is generated, resulting in poor optical characteristics and feel.

  For reference, an example of test conditions when the above-described attritor is used is shown below. The test is an example of a dry type. Alumina beads having a diameter of 5.5 mm are used as the filler. In the case of a vessel having a volume of 5 L, 7.7 kg of filler is charged, and 0.5 kg of hemispherical to approximately hemispherical organic powder and octyltrialkoxysilane-treated color pigment and / or the same organic pigment are charged in total. And mixing for 10 minutes at 300 rpm. When carried out under these conditions, a powder in which the surface of the organic powder is uniformly coated with the colored pigment and / or the organic pigment treated with the octyltrialkoxysilane is obtained while maintaining the shape of the hemispherical organic powder properly.

  The primary particle diameter of the color pigment and / or organic pigment treated with octyltrialkoxysilane used in the present invention is preferably less than 1 μm. The reason for selecting octyltrialkoxysilane is that it has excellent charging characteristics when treated with octyltrialkoxysilane. When the potential when various surface-treated pigments were contact-charged using a non-contact type static electricity measuring device was examined, silicone treatment, N-acylated amino acid treatment, organic titanate treatment, perfluoroalkyl phosphate ester salt treatment ( Those treated with octyltrialkoxysilane treatment are characterized by a large amount of charged potential compared with fluorine treatment) and untreated. When combined with the above hemispherical to substantially hemispherical organic powder, the larger the charging potential, the more uniform the surface of the hemispherical resin powder is. The alkoxy group of the octyltrialkoxysilane used in the present invention is preferably selected from a methoxy group, an ethoxy group, a propoxy group, and an isopropoxy group, and the ethoxy group is the most preferable in view of safety and cost during processing. preferable. In addition, it is preferable that a heat treatment is performed during the octyltrialkoxysilane surface treatment.

  The treatment amount of the octyltrialkoxysilane with respect to the color pigment and / or the organic dye inorganic pigment is preferably in the range of 0.1 to 15% by mass with respect to the mass of the color pigment and / or the treated organic dye, Preferably the range of 1-12 mass% is mentioned. As a method of treating octyltrialkoxysilane with a colored pigment and / or the same treated organic dye, for example, the octyltrialkoxysilane is mixed with the colored pigment and / or the treated organic dye using a mixer or a bead mill, and then heated. And a method of forming a slurry of octyltrialkoxysilane dissolved in a solvent and a colored pigment and / or the same treated organic dye using a mixer or bead mill, then removing the solvent and heat-treating, a colored pigment and / or Alternatively, there may be mentioned a method of adding octyltrialkoxysilane to the aqueous slurry of the treated organic dye, followed by filtration, drying and heat treatment.

  Examples of color pigments and organic dyes in the color pigments and / or organic dyes treated with octyltrialkoxysilane used in the present invention include iron oxide, iron hydroxide, iron titanate inorganic red pigments, γ-oxidation Inorganic brown pigments such as iron, inorganic yellow pigments such as yellow iron oxide and ocher, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, chromium hydroxide, chromium oxide, Inorganic green pigments such as cobalt oxide and cobalt titanate, inorganic blue pigments such as bitumen and ultramarine blue, tar dyes, tar dyes raked, natural dyes, natural dyes raked, etc. As tar pigments, 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 226, Red 227, Red 228, Red 230, Red 401, Red 505, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Yellow 204, Yellow 401, Blue 1 No. 2, Blue No. 2, Blue No. 201, 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 No. 207, etc. Natural pigments include carminic acid, laccaic acid, calsamine, bradylin, crocin and the like.

  The coverage of the hemispherical to substantially hemispherical organic powder in the composite organic powder of the present invention and the octyltrialkoxysilane-treated colored pigment and / or the treated organic dye is in a mass ratio of 50:50 to It is preferably in the range of 95: 5.

  In the present invention, the composite organic powder thus obtained can be blended in cosmetics, resins, paints, paper, inks, paints, anti-counterfeiting materials and the like.

  In the cosmetic of the present invention, in addition to the above composite organic powder, various pigments used in cosmetics, ultraviolet absorbers, oils, surfactants, fluorine compounds, resins, adhesives, preservatives, fragrances, moisturizers, Components such as salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusting agents, insect repellents, polymerization initiators, plasticizers, physiologically active components, catalysts, or thickeners can be used.

  Examples of the pigment used in the cosmetic of the present invention include titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, kaolin, and sericite. , Muscovite, synthetic mica, phlogopite, saucite, biotite, lithia mica, silicic acid, anhydrous silicic acid, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate , Metal tungstate, hydroxyapatite, vermiculite, hydrite, bentonite, montmorillonite, hectorite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride Silica etc .; Organic powders include polyamide powder, polyester powder, silicone elastomer, silicone resin powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, polytetrafluoroethylene powder, polymethyl Methacrylate powder, cellulose powder, silk powder, nylon powder such as 12 nylon and 6 nylon, polyacryl powder, polyacryl elastomer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol Resin, fluorine resin, silicon resin, acrylic resin, melamine resin, epoxy resin, polycarbonate resin, Crystal fiber powder, starch powder, lauroyl lysine, etc .; surfactant metal salt powder (metal soap) includes zinc stearate, aluminum stearate, calcium stearate, magnesium stearate, zinc myristate, magnesium myristate, cetyl lin Zinc oxide, calcium cetyl phosphate, sodium cetyl phosphate, etc .; colored pigments include iron oxide, iron hydroxide, inorganic red pigments of iron titanate, inorganic brown pigments such as γ-iron oxide, yellow iron oxide, loess, etc. Inorganic yellow pigments, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate, bitumen and ultramarine blue Inorganic blue pigments such as raked tar pigments, Dye raked and synthetic organic powders made by combining these powders; Pearl pigments include titanium oxide coated mica, titanium oxide coated mica, bismuth oxychloride, titanium oxide coated bismuth oxychloride, titanium oxide coated Talc, fish scale foil, titanium oxide-coated colored mica, titanium oxide / iron oxide-coated mica, etc .; as metal powder pigments, aluminum powder, copper powder, stainless steel powder, etc .; as fine metal oxide pigments, fine particle titanium oxide, fine particle oxidation Zinc, fine particle cerium oxide, etc .; As tar pigments, 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 No., Red No. 228, Red No. 230, Red No. 401, Red No. 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, Green No. 3, Green No. 201, Green No. 204, Green No. 205 Orange 201, orange 203, orange 204, orange 206, orange 207, etc. Examples of natural pigments include pigments selected from carminic acid, lacqueric acid, calsamine, bradylin, crocin and the like. The primary particle diameter of these pigments is not particularly limited as long as it is in the range of 1 nm to 30 μm, and the form thereof is not particularly limited, such as a spherical shape, a plate shape, a rod shape, a spindle shape, and an indefinite shape.

  Further, these pigments may or may not be subjected to various surface treatments for water repellency and hydrophilicity. Examples of surface treatments include, for example, methylhydrogenpolysiloxane treatment, silicone resin treatment, silicone gum treatment, acrylic silicone treatment, organosiloxane treatment such as fluorinated silicone treatment, metal soap treatment such as zinc stearate treatment, silane coupling, etc. Silane treatment such as agent treatment, alkylsilane treatment, organic titanate treatment, organic aluminate treatment, perfluoroalkylsilane, perfluoroalkyl phosphate ester salt, perfluoropolyether, fluorine compound treatment such as fluorinated acrylate treatment, N- Amino acid treatment such as lauroyl-L-lysine treatment, oil agent treatment such as squalane treatment, acrylic treatment such as alkyl acrylate treatment, inorganic oxide treatment such as silica, alumina, zirconia treatment, agar treatment, etc. seed It is possible to use a combination of above.

  Moreover, it is preferable to mix | blend the component which shows adhesiveness at the time of cosmetics application | coating, such as wax, resin, paste, gum, and a thickener, in the cosmetics of this invention. A composite organic powder having a hemispherical to substantially hemispherical shape has a characteristic that, when these components are blended, it is easy to spontaneously make a structure in which convex surfaces are arranged outside the skin by orienting on the skin. If these components are contained in the cosmetic in the range of about 0.1 to 15% by mass, more preferably in the range of 0.3 to 5% by mass, based on the total amount of the preparation, the optical properties are more There is an advantage that can be easily obtained.

  Examples of thickeners include gum arabic, tragacanth, arabinogalactan, locust bean gum (carob gum), guar gum, caraya gum, carrageenan, pectin, agar, quince seed (malmello), starch (rice, corn, potato, wheat) ), Plant polymers such as algae colloids, tant gum and locust bean gum, microbial polymers such as xanthan gum, dextran, succinoglucan and pullulan, animal polymers such as collagen, casein, albumin and gelatin, carboxymethyl starch , Starch-based polymers such as methylhydroxypropyl starch, methylcellulose, ethylcellulose, methylhydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose, hydroxy Propylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose polymers such as cellulose powder, alginic acid polymers such as sodium alginate and propylene glycol alginate, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc. Vinyl polymer, polyoxyethylene polymer such as polyethylene glycol, polyoxyethylene polyoxypropylene copolymer polymer, acrylic polymer such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, polyethylene Imine, cationic polymer, bentonite, magnesium aluminum silicate, laponite, smectite, saponite, hectorite Examples include inorganic thickeners such as silicic anhydride, and oil-soluble gelling agents include metal soaps such as aluminum stearate, magnesium stearate, zinc myristate, N-lauroyl-L-glutamic acid, α, amino acid derivatives such as γ-di-n-butylamine, dextrin palmitate, dextrin stearate, dextrin fatty acid ester such as dextrin 2-ethylhexanoate palmitate, sucrose palmitate, sucrose stearate, etc. Benzylidene derivatives of sorbitol such as sucrose fatty acid ester, monobenzylidene sorbitol, dibenzylidene sorbitol, dimethylbenzyl dodecyl ammonium montmorillonite clay, dimethyl dioctadecyl ammonium montmorillo Gelling agent selected from organic modified clay minerals such as Itokure like. These may be used alone or in combination of two or more as required.

  Examples of oils include, for example, avocado oil, linseed oil, almond oil, ibotarou, eno oil, olive oil, cacao butter, kapok wax, kaya oil, carnauba wax, liver oil, candelilla wax, kyounin oil, whale wax, hardened oil, wheat germ Oil, sesame oil, rice germ oil, rice bran oil, sugarcane wax, sasanqua oil, safflower oil, shea butter, cinnamon oil, cinnamon oil, jojoballow, shellac wax, turtle oil, soybean oil, tea seed oil, camellia oil, evening primrose oil Corn oil, rapeseed oil, Japanese Kiri oil, Nukarou, germ oil, Persic oil, palm oil, palm kernel oil, castor oil, hydrogenated castor oil, castor oil fatty acid methyl ester, sunflower oil, grape oil, bayberry wax, jojoba oil, Macadamia nut oil, beeswax, cottonseed oil, cotton wax, molasses, mollusc kernel oil, montan C, palm oil, hydrogenated palm oil, tricoconut oil fatty acid glyceride, peanut oil, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, lanolin fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol Acetate, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, egg yolk oil, etc .; hydrocarbon oils such as ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax, liquid paraffin, pristane, polyisobutylene, microcrystalline wax, petrolatum, etc. Higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, oleic acid, linol Linolenic acid, arachidonic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), isostearic acid, 12-hydroxystearic acid, etc .; higher alcohols include lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, Hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl decanol, octyldodecanol, cetostearyl alcohol, 2-decyltetradecinol, cholesterol, phytosterol, POE cholesterol ether, monostearyl glycerol ether (batyl alcohol), monooleyl glyceryl Ether (ceralkyl alcohol), etc .; ester oils include diisobutyl adipate, adipic acid 2-hexyldecyl, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate Trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, Triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2 sebacate Ethylhexyl, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, cholesteryl 12-hydroxystearylate, dipentaerythritol fatty acid ester, isopropyl myristate, Octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, diisostearyl malate, etc. Glyceride oils include acetoglyceryl, glyceryl triisooctanoate, glyceryl triisostearate, glyceryl triisopalmitate, Glyceryl stearate, di-2-heptyl undecanoic acid, glyceryl trimyristate, diglyceryl, and the like myristyl isostearate.

  Various silicone compounds are also preferably used. For example, dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, dimethylsiloxane / methylphenylsiloxane copolymer, etc. Cyclic siloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, tetramethyltetraphenylcyclotetrasiloxane, etc., highly polymerized gum-like dimethylpolysiloxane, gum Silicone gum such as a dimethylsiloxane / methylphenylsiloxane copolymer, and a cyclic polysiloxane solution of the silicone gum, trimethylsiloxysilicate, Cyclic polysiloxane solution siloxy silicic acid, higher alkoxy-modified silicones such as stearoxysilicone silicone, higher fatty acid-modified silicones, alkyl-modified silicones, amino-modified silicone, silicone resin, silicone resin, methyl trimethicone and the like.

  Examples of the ultraviolet absorber used in the cosmetic of the present invention include homomenthyl salicylate, octocrylene, diparamethoxycinnamate mono-2-ethylhexanoate glyceryl, paraaminobenzoic acid and its ester, 4-tert-butyl-4 '-Methoxydibenzoylmethane, 4- (2-β-glucopyranosyloxy) propoxy-2-hydroxybenzophenone, octyl salicylate, methyl 2,5-diisopropylcinnamate, 2- [4- (diethylamino) -2- Hydroxybenzoyl] benzoic acid hexyl ester, sinoxate, dihydroxydimethoxybenzophenone, dihydroxydimethoxybenzophenone sodium disulfonate, dihydroxybenzophenone, dimethicodiethylbenzalmalonate, 1- (3,4-dimethoxyphenyl) Nyl) -4,4-dimethyl-1,3-pentanedione, dimethoxybenzylidenedioxoimidazolidinepropionate 2-ethylhexyl, tetrahydroxybenzophenone, terephthalylidene dicanfursulfonic acid, 2,4,6-tris [4- (2-Ethylhexyloxycarbonyl) anilino] -1,3,5-triazine, methylbis (trimethylsiloxy) silylisopentyl trimethoxycinnamate, drometrizol trisiloxane, amyl paradimethylaminobenzoate, paradimethylaminobenzoic acid 2-ethylhexyl, octyl paramethoxycinnamate, isopropyl dimethoxycinnamate / diisopropyl cinnamate ester mixture, 2-hydroxy-4-methoxybenzophenone, hydroxymethoxybenzophenonesulfonic acid And trihydrate thereof, sodium hydroxymethoxybenzophenonesulfonate, phenylbenzimidazolesulfonic acid, ferulic acid, 2,2′-methylenebis (6- (2H-benzotriazol-2-yl) -4- (1,1,3) , 3-tetramethylbutyl) phenol) and the like.

  Further, as alcohols, lower alcohols such as ethanol, propanol, isopropanol, sugar alcohols such as sorbitol, maltose, maltitol, etc., sterols, cholesterol, sitosterol, phytosterols, lanosterol, etc., glucose, sucrose, lactose, raffinose, Trehalose, xylitol, glycerin, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, polyglycerin, hyaluronic acid, chondroitin sulfate, pyrrolidone carboxylate, Polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, ethyl glucosi Etc. The.

  In the cosmetics of this invention, it is possible to mix | blend said composite organic powder in the range of 1-99.9 mass% with respect to the total amount of cosmetics. In order to obtain an effective effect, it is preferable to mix the composite organic powder at a concentration as high as possible, more preferably 25 to 99.9% by mass with respect to the total amount of the cosmetic.

  The cosmetics of the present invention include makeup cosmetics such as foundation, concealer, blusher, white powder, eye shadow, mascara, eyeliner, face powder, lipstick, lip gloss, nail color, body powder, body milk or body lotion. And other basic cosmetics such as sunscreen, makeup base, emulsion, cream, milk, essence and other basic cosmetics, hair dyes, hair cosmetics such as hair manicure or hair spray, etc. Lipsticks and makeup bases have the advantage that the design effect of the composite organic powder can be easily obtained.

  Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.

  After mixing 100 parts by weight of yellow No. 4 aluminum lake, which is a kind of organic dye, and 5 parts by weight of octyltriethoxysilane using a mixer, the mixture is heat treated at 100 ° C. for 3 hours, and treated with 5% by weight of octyltriethoxysilane. A No. 4 aluminum lake was obtained. Next, 70 parts by mass of hemispherical organic powder (Techpolymer average primary particle diameter 10 μm, cross-linked polymethyl methacrylate manufactured by Sekisui Plastics Co., Ltd.) and 30 parts by mass of yellow octyltriethoxysilane 5 mass% treated yellow No. 4 aluminum lake are coarsened. Mixed. Using a dry attritor (Mitsui Mining Co., Ltd., volume 5 L), 7.7 Kg of alumina beads having a diameter of 5.5 mm were added as a filler, and 0.5 Kg of the above coarsely mixed raw material was added thereto, under the condition of 300 rpm. And mixed for 10 minutes. As a result of observing the surface state of the obtained powder using a scanning electron microscope, the surface of the hemispherical organic powder is cleanly covered with octyltriethoxysilane-treated yellow No. 4 aluminum lake as shown in FIG. I found out.

  10 parts by weight of this composite organic powder is mixed with 40 parts by weight of ethyl alcohol, mixed with 160 parts by weight of clear lacquer, and then pulverized with ultrasonic waves for 5 minutes using an applicator with a slit width of 0.1 mm to polyethylene terephthalate When the film was applied to the film and dried, the film was characterized in that color and brightness were emphasized at an angle of 60 degrees or more from the incident angle.

  A product was obtained in the same manner as in Example 1 except that Yellow No. 5 aluminum lake was used instead of Yellow No. 4 aluminum lake in Example 1. As a result of observing the surface state of the obtained powder using a scanning electron microscope, the surface of the hemispherical organic powder was cleanly covered with octyltriethoxysilane-treated yellow No. 5 aluminum lake as shown in FIG. I found out. As a result of applying the composite organic powder to the film as described above and evaluating the optical characteristics, the film was characterized in that the color and brightness were emphasized at an angle of 60 degrees or more from the incident angle.

Comparative Example 1

  An untreated yellow No. 4 aluminum lake was used in place of the octyltriethoxysilane-treated yellow No. 4 aluminum lake of Example 1, and a product was obtained in the same manner as in Example 1. As a result of observing the surface state of the obtained powder using a scanning electron microscope, the surface of the hemispherical organic powder was exposed as shown in FIG. 3, and the octyltriethoxysilane-treated yellow No. 4 aluminum was exposed. The rake was only covered unevenly. Further, when this sample was processed into a film, this film had an effect of slightly enhancing the color and lightness at an angle of 60 degrees or more from the incident angle. It was quite weak.

Comparative Example 2

  An untreated yellow No. 5 aluminum lake was used in place of the octyltriethoxysilane-treated yellow No. 5 aluminum lake of Example 2, and a product was obtained in the same manner as in Example 2. As a result of observing the surface state of the obtained powder using a scanning electron microscope, the surface of the hemispherical organic powder was exposed as shown in FIG. 4, and the octyltriethoxysilane treated yellow No. 5 aluminum was exposed. The rake was only covered unevenly. Further, when this sample was processed into a film, this film had an effect of slightly enhancing the color and lightness at an angle of 60 degrees or more from the incident angle. It was quite weak.

  A product was obtained in the same manner as in Example 1 except that the mixing mass ratio of the hemispherical organic powder of Example 1 and the octyltriethoxysilane-treated yellow No. 4 aluminum lake was changed from 70:30 to 85:15. When the surface of the obtained powder was observed using a scanning electron microscope, it was confirmed that the surface was uniformly coated. Further, when this sample was processed into a film, this film had an effect of enhancing color and brightness at an angle of 60 degrees or more from the incident angle.

  A product was obtained in the same manner as in Example 2 except that the mixing mass ratio of the hemispherical organic powder of Example 2 and the octyltriethoxysilane-treated yellow No. 5 aluminum lake was changed from 70:30 to 90:10. When the surface of the obtained powder was observed using a scanning electron microscope, it was confirmed that the surface was uniformly coated. Further, when this sample was processed into a film, this film had an effect of enhancing color and brightness at an angle of 60 degrees or more from the incident angle.

  100 parts by mass of yellow iron oxide which is a kind of colored inorganic pigment and 5 parts by mass of octyltriethoxysilane were mixed in 1000 parts by mass of isopropyl alcohol and stirred well. After the solvent was distilled off under reduced pressure and heated, heat treatment was performed at 115 ° C. for 6 hours to obtain yellow iron oxide treated with 5% by mass of octyltriethoxysilane. Next, 92 parts by mass of hemispherical organic powder (Techpolymer average primary particle diameter of 10 μm, cross-linked polymethyl methacrylate manufactured by Sekisui Plastics Co., Ltd.) and 8 parts by mass of yellow iron oxide treated with 5% by mass of the octyltriethoxysilane were roughly mixed. . Using a dry attritor (Mitsui Mining Co., Ltd., volume 5 L), 7.7 Kg of alumina beads having a diameter of 5.5 mm were added as a filler, and 0.5 Kg of the above coarsely mixed raw material was added thereto, under the condition of 300 rpm. And mixed for 10 minutes. When the surface state of the obtained powder was observed using a scanning electron microscope, it was confirmed that the powder was uniformly coated. Further, when this sample was processed into a film, this film had an effect of enhancing color and brightness at an angle of 60 degrees or more from the incident angle.

  After mixing 100 parts by mass of red 202, which is a kind of organic dye, and 5 parts by mass of octyltriethoxysilane using a mixer, the mixture was heat treated at 100 ° C. for 3 hours, and treated with 5% by mass of octyltriethoxysilane, red 201. Got. Next, 80 parts by mass of hemispherical organic powder (wheat starch) and 20 parts by mass of Red Oct. 201 treated with 5% by mass of the octyltriethoxysilane were roughly mixed. Using a dry attritor (Mitsui Mining Co., Ltd., volume 5 L), 7.7 Kg of alumina beads having a diameter of 5.5 mm were added as a filler, and 0.5 Kg of the above coarsely mixed raw material was added thereto, under the condition of 300 rpm. And mixed for 10 minutes. When the surface state of the obtained powder was observed using a scanning electron microscope, it was confirmed that the powder was uniformly coated. Further, when this sample was processed into a film, this film had an effect of enhancing color and brightness at an angle of 60 degrees or more from the incident angle.

  A product was obtained in the same manner as in Example 6 except that Blue No. 1 aluminum lake was used instead of Red No. 202 used in Example 6. When the surface state of the obtained powder was observed using a scanning electron microscope, it was confirmed that the powder was uniformly coated. Further, when this sample was processed into a film, this film had an effect of enhancing color and brightness at an angle of 60 degrees or more from the incident angle.

  A product was obtained in the same manner as in Example 1 except that the blue No. 1 aluminum lake was used instead of the yellow No. 4 aluminum lake in Example 1. As a result of observing the surface state of the obtained powder using a scanning electron microscope, it was found that the surface of the hemispherical organic powder was neatly covered with octyltriethoxysilane-treated blue No. 1 aluminum lake. As a result of applying the composite organic powder to the film as described above and evaluating the optical characteristics, the film was characterized in that the color and brightness were emphasized at an angle of 60 degrees or more from the incident angle.

  Cosmetics were manufactured with the formulation and manufacturing method shown in Table 1 using the powders manufactured in the examples. The unit of the blending amount is mass%.

  The powder components were mixed with a mixer. The liquid component which melt | dissolved uniformly was thrown in there, and also mixed. The obtained component was filled in a container to obtain a product.

  The product of Example 8 was excellent in the effect of enhancing the contour of the face.

A water-in-oil liquid foundation was produced using the powder produced in the examples according to the formulation and production method shown in Table 2. The unit of the blending amount is mass%.
The dimethicone copolyol / decamethylcyclopentasiloxane solution uses BY22-008M manufactured by Toray Dow Corning Co., Ltd., and KSG-16 manufactured by Shin-Etsu Chemical Co., Ltd. is used as the silicone gel. Pigment plastic powder D-800 was used.

  Component B was mixed well using a mixer. On the other hand, Component A was heated to 80 ° C. and mixed well so as to be uniform. To this, component B was gradually added with stirring and gradually cooled to 50 ° C. Next, Component C was heated to 80 ° C. and dissolved uniformly, and then slowly cooled to 50 ° C. Component C was added to component A under stirring, further stirred well, and cooled to room temperature. The obtained solution was filled in a container to obtain a product.

  The product thus obtained was excellent in enhancing the contour of the face. In addition, depending on how the light was applied, effects such as making the skin look brighter, wrinkles and texture were less noticeable were observed.

The example of the scanning electron micrograph of the hemispherical organic powder coat | covered with the yellow 4 No. 4 aluminum lake treated with 5 mass% of octyl triethoxysilane of Example 1 is shown. The example of the scanning electron micrograph of the hemispherical organic powder coat | covered with the 5 mass% process yellow 5 aluminum lake of the octyl triethoxysilane of Example 2 is shown. The example of the scanning electron micrograph of the hemispherical organic powder coat | covered with the untreated yellow No. 4 aluminum lake of the comparative example 1 is shown. The example of the scanning electron micrograph of the hemispherical organic powder coat | covered with the untreated yellow No. 5 aluminum lake of the comparative example 2 is shown.

Claims (2)

  A composite organic powder obtained by coating the surface of a hemispherical to substantially hemispherical organic powder with a color pigment treated with octyltrialkoxysilane and / or the treated organic dye.   A cosmetic comprising the composite organic powder according to claim 1.

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