JP6174346B2 - Cosmetics - Google Patents

Description

  The present invention contains agar gel particles having an average particle diameter of 0.5 to 10 mm containing powder, one or more selected from carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer, and natural gum. In more detail, the agar gel particles disintegrate easily when applied to the skin, and there are no debris, and they are entangled with the aqueous medium and spread uniformly on the skin. It relates to cosmetics with excellent skin familiarity.

  Technologies related to water-based gel particles that exhibit various functions have been studied in the past. For example, by mixing a water-soluble active ingredient in gel particles and dispersing it in the outer layer, the active ingredient is directly dispersed in the outer layer. In some cases, the stability of the active ingredient is superior or the effect of the active ingredient is felt stronger than in the case of the above. Moreover, a usability and a texture can be changed by mix | blending the system different from an outer layer as a gel particle. Therefore, a technique for obtaining a small spherical substance using calcium alginate that utilizes the property of being gelled by crosslinking with a polyvalent metal such as calcium alginate (see, for example, Patent Document 1) or gel by thermoreversibility such as agar or gelatin. A technique in which hydrogel particles are prepared using a gelling agent that generates a gel (see, for example, Patent Document 2), and visible particles made of agar, sodium alginate, etc. are dispersed and suspended in an aqueous base material having a specific gravity. Cosmetics (see, for example, Patent Document 3) and the like have been studied and known.

JP 63-139108 A JP 2010-131479 A Japanese Patent Laid-Open No. 2002-20228

  However, cosmetics containing a small spherical substance by calcium alginate as in Patent Document 1 have a small spherical substance insoluble film residue after the small spherical substance collapses, and after application, the residual part is removed from the skin by some method. The film had to be removed, and the film was not uniform and the skin was not familiar. Further, even in the case of gel particles using agar or gelatin as in Patent Document 2, in a cosmetic in which a lot of powder is blended in gel particles, the powder settles with time due to the weight of the powder, or the powder There is a problem that the free ions of the gel particles collapse, and the viscosity of the aqueous medium in which the gel particles are dispersed is lowered. Just by adding a water-soluble polymer excellent in salt resistance and ion resistance, It has been difficult to provide a cosmetic containing gel particles having a large elongation spread and being unable to be applied uniformly and having an excellent feeling of use. Furthermore, in skin cosmetics in which gel particles having a visible size of 0.1 to 5 mm are dispersed and suspended in an aqueous base having a specific gravity as in Patent Document 3, the gel particles slip on the skin and disintegrate. There was a problem that there was no residue.

  On the other hand, in the cosmetics market, not only the makeup effect and skin care effect after application of cosmetics, but also the appearance and feel of the cosmetics themselves are important factors. This is one of the attractions. Conventionally, as one of the visual effects, cosmetics have been proposed that are intended to change the shape and color tone during use. In particular, in visual cosmetics, makeup cosmetics have been proposed to disperse pigment particles by applying them to the skin or shearing force from a pump, and evenly disperse them, but in skin care cosmetics, There have been few visual presentations at the time of use, and it has been demanded in the cosmetics market. The act of spreading the gel particles floating in the cosmetics evenly on the skin while disintegrating them during application is one of the appeals of the product as a visual effect.

In addition, in order to uniformly disperse the agar gel particles in the aqueous medium, not only the hardness of the gel particles but also the aqueous medium needs to be hard. In order to be entangled, it is considered necessary to use an aqueous gel solution having a viscosity in an aqueous medium. However, if the agar gel particles are simply dispersed in the aqueous gel solution, the agar gel particles will slip on the skin and will not disintegrate, or there will be residual fragments, and a uniform spread will not be obtained. Stickiness sometimes occurred.
Therefore, a cosmetic containing agar gel particles, in which agar gel particles containing powder are dispersed in an aqueous gel solution, the particles easily disintegrate when applied to the skin, and the spread and skin familiarity are excellent. It was sought after.

  In view of the above situation, as a result of intensive studies, the present inventor obtained agar gel particles containing powder and solidified with agar and having an average particle size of 0.5 to 10 mm from carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer. By dispersing in one or more selected aqueous media in combination with a natural gum, the polymer and natural gum are intertwined with the agar gel particles, and the particles slip when applied to the skin. The present invention was completed by discovering that a cosmetic material that easily disintegrates and spreads uniformly without spreading and that is excellent in familiarity with the skin can be obtained, and that the above problems can be solved.

That is, the present invention
Disperse agar gel particles having an average particle size of 0.5 to 10 mm containing powder in an aqueous medium containing one or more selected from carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer and natural gum. The present invention provides cosmetics characterized by the above.

  The cosmetic is characterized in that 35 to 90% by mass of the powder is a plate-like powder having an average particle size of 40 to 250 μm.

  The makeup as described above, wherein one of the agar gel particles is compressed at a rate of 0.1 mm / second using a texture analyzer at 25 ° C., and the disintegration strength (maximum load value) is 0.5 to 9 g. A fee is provided.

  The cosmetic is characterized in that the natural gum is xanthan gum.

  The viscosity of the aqueous medium at 25 ° C. is 65,000 to 85000 mPa · s.

  The cosmetic is characterized by being a skin care cosmetic.

  The cosmetic of the present invention is a cosmetic that is easily disintegrated and spreads evenly when applied to the skin without slipping, and is excellent in familiarity with the skin.

Hereinafter, the present invention will be described in detail.
The cosmetic of the present invention is a cosmetic in which agar gel particles having an average particle size of 0.5 to 10 mm containing powder are dispersed in water to such an extent that they can be visually recognized, and the agar gel particles disintegrate when used. The agar gel particles of the present invention are gel particles obtained by solidifying water containing powder with agar.

The agar used for the agar gel particles used in the present invention is used as a solidifying agent and is a known natural polymer, and any of them can be used regardless of its origin and origin. The agar may be so-called low-strength agar (disclosed in JP-A-5-317008) in which molecules are cut by acid treatment in order to adjust the jelly strength. The jelly strength of the agar is not particularly limited, but is preferably ²⁰ to 2000 g / cm ² , more preferably 30 to 1000 g / cm ² . Here, jelly strength is 1.5% by mass (hereinafter, simply referred to as “%”). Agar is heated and dissolved in water and left at 20 ° C. for 15 hours to solidify the surface of the gel. The maximum mass that can withstand 20 seconds per cm ² . When agar with a jelly strength in this range is used, it is difficult to form a hard solid, so that a cosmetic with particularly good uniformity in the decorative film can be obtained. As such agar, commercially available products such as AX-100 and UP-37 (manufactured by Ina Food Industry Co., Ltd.) can be used.

  In the present invention, the agar content is preferably 0.3 to 2.5%, more preferably 0.5 to 1.5% in the agar gel particles. If it is in this range, the impact resistance will be very good, it will not disintegrate when mixed with an aquatic medium, it will disintegrate easily on the skin, and it has excellent skin familiarity and uniform stretch spread. You can get a fee.

  The powder used for the agar gel particles of the present invention is usually a powder used for cosmetics and the like, spherical, plate-like, needle-like shape, fumes, fine particles, pigment grade particle size, It is not particularly limited by the particle structure such as porous or nonporous, and examples thereof include inorganic powders, glitter powders, organic powders, pigment powders, and composite powders.

  Specifically, titanium oxide, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silica, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, water Chromium oxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, synthetic sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, hydroxyapatite, boron nitride Inorganic powders such as bismuth oxychloride, titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, aluminum powder, polyethylene terephthalate / aluminum / epoxy laminated powder Bright powders such as polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder; nylon powder, polymethyl methacrylate powder, acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer Organic powders such as powder, polyethylene powder, polystyrene powder, alkyl acrylate copolymer, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, crystalline cellulose, N-acyl lysine Pigment powders such as organic tar pigments and lake pigments of organic pigments; particulate titanium oxide coated mica titanium, particulate zinc oxide coated mica titanium, Barium-coated mica titanium, titanium oxide-containing silica, the composite powder and the like, such as zinc oxide-containing silica and the like, can be used alone or in combination of two or more thereof.

  Among these powders, it is preferable to use a plate-like powder having an average particle diameter of 40 to 250 μm from the viewpoint of making the agar gel particles easily disintegrate on the skin and improving the elongation. Furthermore, the aspect ratio of the powder is preferably high from the viewpoint of familiarity with the skin of the agar gel particles, and more preferably 90 or more.

  These powders are one or more of fluorine compounds, silicone compounds, metal soaps, lecithins, hydrogenated lecithins, collagens, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes, surfactants, etc. Surface treatment may be performed using For example, silicon dioxide treatment, aluminum oxide treatment, treatment with silicone compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, trimethylsiloxysilicic acid, fluorine such as perfluoropolyether phosphoric acid, perfluoroalkyl phosphoric acid, fluorine-modified silicone Treatment with compound, metal soap treatment such as zinc laurate, amino acid treatment such as N-long chain acylamino acid, oil treatment such as higher fatty acid, higher alcohol, ester, wax, treatment with hydrogenated phospholipid, silane coupling agent A certain N-octyl silylation process, the isopropyl triisostearoyl titanate process which is a titanate coupling agent, etc. are mentioned. When the hydrophobized surface-treated powder is 50% or less of the powder used for the agar gel particles, the powder tends to be uniformly dispersed in the agar solution during the production of the agar gel particles. It is preferable because of its excellent particle moldability and impact resistance.

  Examples of commercially available powders include PDM-40L, 20L, 10L, and 5L as synthetic phlogopite, and FLAMENCO SPARKLE RED 420J (manufactured by BASF) as titanium oxide-coated mica. .

  In the present invention, the content of the powder of the agar gel particles is 3.0 to 8.0% in the agar gel particles from the viewpoint of impact resistance and easy disintegration on the skin to improve the elongation spread. preferable. Moreover, it is preferable that 35-90% in the powder of an agar gel particle is a plate-shaped powder with an average particle diameter of 40-250 micrometers, More preferably, it is 40-75%. If it is within this range, it is possible to obtain a cosmetic excellent in skin familiarity and uniform elongation.

  The agar gel particles in the present invention contain water. The water content is preferably 55 to 90%, more preferably 65 to 80% in the agar gel particles from the viewpoints of stability, disintegration, and manufacturability of the agar gel particles.

  The agar gel particles in the present invention may contain other arbitrary components in addition to the above components as long as the effects of the present invention are not impaired. For example, water-soluble polymers other than agar, oily components, water-insoluble polymers, aqueous components, surfactants, oil gelling agents, moisturizers, ultraviolet absorbers, antioxidants, preservatives, chelating agents, fragrances, Examples include cosmetic ingredients.

  In agar gel particles, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, methylcellulose, hydroxymethylcellulose, bidoxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, sodium alginate, carrageenan, quinseed gum, xanthan gum, gellan gum Can contain one or more water-soluble polymers selected from native gellan gum, guar gum, roast bean gum, pectin, polyvinyl alcohol, etc., and the physical properties of agar gel particles by containing the water-soluble polymer Strength can be reinforced.

  The water-soluble polymer is preferably 0.001 to 3%, more preferably 0.01 to 1% in the agar gel particles. This range is preferable in terms of strength, disintegration, and stability of the agar gel particles.

  In the present invention, the average particle size of the agar gel particles is 0.5 to 10 mm. When it is smaller than 0.5 mm, it is difficult to be seen as a grain and the appearance is poor, and when it exceeds 10 mm, the entanglement with the aqueous medium is insufficient when disintegrated, and uniform elongation and spread cannot be obtained. Moreover, it is preferable that it is 1-7 mm from a viewpoint of the beauty of an external appearance, and skin familiarity. The average particle diameter of the agar gel particles is the average of the maximum diameter of each particle measured by visual observation. For example, any 10 agar gel particles can be taken out, the maximum diameter of each particle can be measured, and the average particle diameter can be calculated.

  In addition, since the agar gel particles are used after being disintegrated, one agar gel particle is prepared at a room temperature (25 ° C.) at a texture analyzer TA. Using XTplus (manufactured by Stable Micro Systems), a probe made of a columnar polyacetal resin (manufactured by Delrin (registered trademark) DuPont) having a diameter of 12.5 mm was used as a probe, and compressed at a speed of 0.1 mm / sec. It is preferable that the collapse strength (maximum load value) applied during the collapse is 0.5 to 9 g. Within this range, a product with very good impact resistance can be obtained, and a cosmetic that easily disintegrates on the skin can be obtained. Furthermore, since the cosmetics which disintegrate easily on skin can be obtained as it is 1-7g, it is more preferable.

  The method for producing the agar gel particles is not particularly limited. For example, water and agar are heated and dissolved at about 90 ° C., cooled to about 50 ° C., added with powder, and cooled and solidified to obtain the source of the agar gel particles. To produce an agar gel. The agar gel is heated again to about 70 ° C. and dropped into an oily component such as silicone oil or hydrocarbon oil at about 25 ° C. to obtain particulate agar gel particles. If the agar gel melt | dissolved by heating at this time is cooled to about 50-60 degreeC and oily components, such as a silicone oil and hydrocarbon oil, are dripped at about 5-30 degreeC, since it approximates spherical and the external appearance shape becomes beautiful, it is preferable. The obtained agar gel particles are washed with purified water to remove surface oil and used.

  The present invention is a cosmetic prepared by dispersing the agar gel particles in an aqueous medium containing one or more selected from a carboxyvinyl polymer and an alkyl-modified carboxyvinyl polymer, and a natural gum. The aqueous medium of the present invention is a medium containing water and dispersing agar gel particles.

  This aqueous medium contains one or more selected from carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers, which have a yield value and prevent sedimentation and shrinkage of agar gel particles in the aqueous medium. In combination with a natural gum, the agar gel particles and the aqueous medium are entangled, and the agar gel particles do not escape on the skin and do not leave any residue, contributing to a uniform stretch.

  The carboxyvinyl polymer and the alkyl-modified carboxyvinyl polymer are a copolymer obtained by crosslinking acrylic acid mainly with a small amount of allyl sucrose, or an alkylated product thereof. In particular, the alkyl group to be alkylated preferably has 10 to 30 carbon atoms, and the alkyl-modified carboxyvinyl polymer is preferably an (acrylic acid / alkyl acrylate (C10-30)) copolymer. These copolymers preferably have an average molecular weight of about 50,000 to 3,000,000, and more preferably 750,000 or more.

  Examples of commercially available carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers include, for example, carbopol 940, carbopol 941, carbopol 980 (manufactured by LUBRIZOL ADVANCED MATERIALS), and alkyl-modified carboxyvinyl polymer Pemulene TR. -1, Pemulen TR-2 (manufactured by NOVEON), Carbopol 1342, Carbopol 1382 (manufactured by LUBRIZOL ADVANCED MATERIALS) and the like.

  The carboxyvinyl polymer and the alkyl-modified carboxyvinyl polymer can be used alone or in combination of two or more, and neutralized and thickened by adding an alkali to sodium hydroxide, potassium hydroxide, triethanolamine, arginine or the like. It is more preferable to contain.

  In the present invention, the content of the carboxyvinyl polymer and the alkyl-modified carboxyvinyl polymer is preferably 0.001 to 1%, more preferably 0.01 to 0.5% in the aqueous medium. Within this range, sedimentation and shrinkage of the agar gel particles in the aqueous medium can be prevented, and entanglement with the agar gel particles is excellent.

  In the present invention, a natural gum is contained in the aqueous medium. Natural gum is xanthan gum, sclerotium gum, locust bean gum, guar gum, tamarind gum, quince seed gum, karaya gum, arabic gum, tragacanth gum, gutty gum, arabinogalactan, agar, carrageenan, alginic acid, ferceleran, pectin, It is a polysaccharide obtained by extraction or extraction from nature such as quince, curdlan, pullulan, dextran, gellan gum, gelatin, etc., or production by microorganisms or cultivation with enzymes. The natural gum is that the agar gel particles are easily disintegrated on the skin without peeling off the agar gel particles and the aqueous medium on the skin at the time of application, and contributes to uniform spread.

  Among the natural gums, xanthan gum is preferable from the viewpoint of entanglement with agar gel particles and uniform elongation. Xanthan gum is a natural gum derived from microorganisms obtained by fermenting carbohydrates such as glucose with the genus Xanthomanas. Such xanthan gum is not particularly limited as long as it is used in ordinary cosmetics, and commercially available products include GLINSTED XANTHAN CLEAR 80 (manufactured by DANISCO), echo gum (manufactured by Gokyo Sangyo), Celtrol. (Made by Koei Kogyo Co., Ltd.).

  The natural gum used in the present invention is preferably 0.001 to 3%, more preferably 0.01 to 1% in an aqueous medium. Within this range, the agar gel particles and the aqueous medium are entangled with each other, and the agar gel particles can be uniformly extended and spread without escaping.

  In the present invention, when the viscosity of the aqueous medium at 25 ° C. is 65000 mPa · s to 85000 mPa · s, the settling of the agar gel particles is prevented, and it is easy to scoop with hands, without sagging on the skin even during application. It is preferable because it can be stretched and spread with an appropriate thickness.

  There is no problem even if the aqueous medium in the present invention is colored with a colorant such as a pigment or dye usually used in cosmetics. In addition, it can be recognized that the agar gel particles are dispersed in appearance, and from the viewpoint of beauty, the aqueous medium is preferably transparent, and when opaque, it is preferably a color different from the agar gel particles.

  In the aqueous medium in the present invention, in addition to the above components, other arbitrary components may be contained within a range not impairing the effects of the present invention. For example, water-soluble polymers other than the above, oily components, water-insoluble polymers, aqueous components, surfactants, oil gelling agents, moisturizers, ultraviolet absorbers, antioxidants, preservatives, chelating agents, fragrances, Examples include cosmetic ingredients and powders.

  As an oil-based component, if it is a raw material normally used for cosmetics, it will not specifically limit, It can use. For example, hydrocarbons, fats and oils, higher alcohols, waxes, hardened oils, regardless of origin such as animal oils, vegetable oils, synthetic oils, and properties such as solid oils, semi-solid oils, liquid oils, volatile oils, etc. Ester oils, fatty acids, silicone oils, fluorine-based oils, lanolin derivatives, oil-based gelling agents, oil-soluble UV absorbers, and the like. Specifically, hydrocarbons such as liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene, paraffin wax, ceresin wax, microcrystalline wax, fisher trops wax, olive oil, castor oil, jojoba oil, mink oil, macadamian Vegetable oils such as nut oil, beeswax, carnauba wax, candelilla wax, waxes such as gay wax, owl, montan wax, cetyl 2-ethylhexanoate, isotridecyl isostearate, isopropyl myristate, isopropyl palmitate, octyl myristate Dodecyl, cetyl trioctanoate, glyceryl tri-2-ethylhexanoate, polyglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, rosin acid Terelite ester, neopentyl glycol dioctanoate, diisostearyl malate, cholesterol fatty acid ester, N-lauroyl-L-glutamate di (cholesteryl, behenyl, octyldodecyl), esters such as macadamian nut fatty acid phytosteryl, stearic acid , Fatty acids such as lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, higher alcohols such as cetyl alcohol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, perfluoropolyether, perfluorodecane, perfluorooctane, etc. Fluorinated oils, lanolin, lanolin acetate, lanolin derivatives such as lanolin fatty acid isopropyl, lanolin alcohol, dextrin fatty acid ester, sucrose fat Esters, starch fatty acid esters, oily gelling agents such as 12-hydroxystearic acid, aluminum stearate, calcium stearate, ethyl paraaminobenzoate, 2-ethylhexyl paramethoxycinnamate, 4-tert-butyl-4'- Examples thereof include oil-soluble ultraviolet absorbers such as methoxydibenzoylmethane, octyltriazone, bisethylhexyloxyphenol methoxyphenyltriazine, hexyl diethylaminohydroxybenzoylbenzoate, methylenebisbenzotriazolyltetramethylbutylphenol, and oxybenzone. These oil agents can use 1 type (s) or 2 or more types as needed.

  Examples of water-insoluble polymers include alkyl acrylate copolymers, alkyl methacrylate copolymers, alkyl acrylate / styrene copolymers, polyvinyl acetate, silicone-containing polymers, and the like. 1 type, or 2 or more types can be used, and these aqueous dispersions can also be used.

  In addition to the above components, the aqueous component is used for the purpose of feeling adjustment, moisturizing, cooling, preserving, etc., and alcohols such as ethanol and isopropyl alcohol, propylene glycol, 1,3-butylene glycol, dipropylene Examples thereof include glycols such as glycol and polyethylene glycol, and glycerols such as glycerin, diglycerin, and polyglycerin. These can be used alone or in combination of two or more.

  Examples of the water-soluble polymer include sodium chondroitin sulfate, hyaluronic acid, gum arabic, polyvinyl pyrrolidone, sodium polyacrylate, polyacrylic acid amide, etc., in addition to the above components, for the purpose of viscosity modifiers, feel modifiers, etc. These can be used alone or in combination of two or more.

  Surfactants are used for the purpose of pigments and dye dispersants, wetting agents, feel modifiers, etc., glycerin fatty acid esters and alkylene glycol adducts thereof, polyglycerin fatty acid esters and alkylene glycol adducts thereof, Propylene glycol fatty acid ester and alkylene glycol adduct thereof, sorbitan fatty acid ester and alkylene glycol adduct thereof, fatty acid ester of sorbitol and alkylene glycol adduct thereof, polyalkylene glycol fatty acid ester, polyoxyalkylene alkyl ether, glycerin alkyl ether, polyoxy Ethylene alkyl phenyl ether, polyoxyalkylene-modified silicone, polyoxyalkylene alkyl co-modified silicone, glycerin-modified silicone, Nonionic surfactants such as reoxyalkylene silicone co-modified silicone, alkylbenzene sulfate, alkyl sulfonate, α-olefin sulfonate, dialkyl sulfosuccinate, α-sulfonated fatty acid salt, acylmethyl taurate, N-methyl-N-alkyl taurate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl phenyl ether phosphate, N- Anionic surfactants such as acyl amino acid salts and N-acyl-N-alkyl amino acid salts, cationic fields such as alkylamine salts, polyamines and alkanoylamine fatty acid derivatives, alkylammonium salts and alicyclic ammonium salts Active agents, lecithin, N, N-dimethyl -N- alkyl -N- carboxymethyl amphoteric surface active agents such as ammonium betaine and the like, can be used more than those one or.

  Examples of oil gelling agents include metal soaps such as aluminum stearate, magnesium stearate, zinc myristate, amino acid derivatives such as N-lauroyl-L-glutamic acid, α, γ-di-n-butylamine, dextrin palmitate, Dextrin fatty acid esters such as dextrin stearic acid ester, dextrin 2-ethylhexanoic acid palmitic acid ester, sucrose fatty acid esters such as sucrose palmitic acid ester, sucrose stearic acid ester, benzylidene of sorbitol such as monobenzylidene sorbitol, dibenzylidene sorbitol Examples thereof include organically modified clay minerals such as derivatives, dimethylbenzyl dodecyl ammonium montmorillonite clay, and dimethyl dioctadecyl ammonium montmorillonite clay.

  As the ultraviolet absorber, any of those usually used in cosmetics may be used. For example, salicylic acid series such as homomenthyl 2-salicylate, octyl salicylate, triethanolamine salicylate; paraaminobenzoic acid, ethyldihydroxypropylparaaminobenzoic acid, PABA series such as glyceryl paraaminobenzoic acid, octyldimethylparaaminobenzoic acid, amyl paradimethylaminobenzoate, 2-ethylhexyl paradimethylaminobenzoate; 4- (2-β-glucopyranosyloxy) propoxy-2-hydroxy Benzophenone, dihydroxydimethoxybenzophenone, sodium dihydroxydimethoxybenzophenone disulfonate, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5 Sulfuric acid, 2,2′-dihydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2,2′4,4′-tetrahydroxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2 Benzophenone series such as -hydroxy-4-N-octoxybenzophenone; 2-ethylhexyl paramethoxycinnamate (also known as octyl paramethoxycinnamate), glyceryl di-2-methoxyhexanoate mono-2-ethylhexanoate, 2 , 5-Diisopropylcinnamate methyl, 2,4,6-tris [4- (2-ethylhexyloxycarbonyl) anilino] -1,3,5-triazine, Trimethoxycinnamate methylbis (trimethylsiloxy) silyl Isopentyl, isopropyl paramethoxycinnamate / diisopropyl Cinnamic acid systems such as lucinic acid ester mixture, p-methoxyhydrocinnamic acid diethanolamine salt; 2-phenyl-benzimidazole-5-sulfuric acid, 4-isopropyldibenzoylmethane, 4-tert-butyl-4′-methoxy Benzoylmethane series such as dibenzoylmethane; 2-cyano-3,3-diphenylpropane-2-enoic acid 2-ethylhexyl ester (also known as octocrylene), dimethoxybenzylidenedioxoimidazolidinepropionate 2-ethylhexyl, 1- (3,4-dimethoxyphenyl) -4,4-dimethyl-1,3-pentanedione, sinoxate, methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenyl acrylate, 3- (4 -Methylbenzylidene) camphor, octyltri Zon, 4- (3,4-dimethoxyphenyl methylene) -2,5-dioxo-1-imidazolidine-propionic acid 2-ethylhexyl, and the like.

  Examples of the humectant include protein, mucopolysaccharide, collagen, elastin, keratin, and the like. Examples of the antioxidant include α-tocopherol, ascorbic acid, and the like. Examples of the preservative include paraoxybenzoate phenoxyethanol. 1,3-butylene glycol, 1,2-pentanediol and the like, and examples of cosmetic ingredients include vitamins, anti-inflammatory agents, herbal medicines and the like.

  Although the manufacturing method of an aqueous medium is not specifically limited, For example, it can obtain by stirring and mixing water, a carboxyvinyl polymer, an alkyl-modified carboxyvinyl polymer, and a natural gum using a stirrer such as Desper.

  The cosmetic of the present invention can be produced by mixing agar gel particles and an aqueous medium. However, the shearing force is mixed so that the agar gel particles do not collapse. For example, the cosmetic of the present invention can be obtained by putting an aqueous medium in a paddle mixer, then pouring the agar gel particles and the aqueous medium in layers in this order, and slowly rotating and mixing the paddle.

  In the production of cosmetics containing agar gel particles and an aqueous medium, the content ratio of the agar gel particles and the aqueous medium is 25:75 to 45:55 in terms of the appearance and uniformity of the coating film. Preferably there is.

  The cosmetics of the present invention obtained as described above are base preparations, foundations, face colors, blushers, eye colors, lipsticks and other makeup cosmetics, skin lotions, cosmetics and other skin care cosmetics, hair gels, hairdressing agents. It can be applied to hair care cosmetics such as body cosmetics and fragrances. In particular, the skin care cosmetic is preferable because the cosmetic of the present invention can have both a high skin care function and a visual effect at the time of use.

  The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.

Production Examples A1 to A8: Agar Gel Particles Agar gel particles shown in Table 1 were produced by the following production method.

Note 1: Inagar Agar UP-37CS (manufactured by Ina Food Industry Co., Ltd.)
Note 2: Carbopol 1382 (manufactured by LUBRIZOL ADVANCED MATERIALS)
Note 3: Kelcogel LT100 (Dainippon Sumitomo Pharma Co., Ltd.)
Note 4: PDM-40L (Topy Industries, Ltd.)
Note 5: PDM-5L (Topy Industries, Ltd.)
Note 6: High filler K-5 (Matsumura Sangyo Co., Ltd.)

(Production method)
A. After neutralizing by adding a part of component 11 and components 2 and 3, the remaining amounts of components 1 and 4 and component 11 are added and mixed.
B. Mix ingredients 5-10.
C. A is heated and dissolved uniformly at 90 ° C., then cooled, and B is added at 50 ° C. and mixed. D. Furthermore, the agar gel was obtained by solidifying by cooling.
E. D was heated to 70 ° C., cooled to 50 ° C., and then dropped into silicone oil at 25 ° C. to obtain particulate agar gel particles having a diameter of about 3.5 mm.
F. The agar gel particles obtained in E were washed with purified water.

Production Example B 2 ~B9: to produce an aqueous medium shown in an aqueous medium in Table 2 in the following manufacturing method.

Note 7: Carbopol 980 (LUBRIZOL ADVANCED MATERIALS)
Note 8: GRINSTED XANTHAN CLEAR80 (DANISCO)
Note 9: GRANULATED AMIGEL (made by AMI)

(Production method)
After neutralization by adding a part of component 11 and components 1 to 3, the remaining amounts of components 4 to 10 and component 11 were added and mixed uniformly using a desper to obtain an aqueous medium.

Example 8-1 3, Comparative Examples 1 to 3: shows skin care cosmetics Table 3 were produced skin care cosmetic composition of Example 8-1 3 and Comparative Examples 1 to 3 in the following manufacturing method. The obtained agar gel particles were evaluated by measuring the decay strength by the following method. The obtained skin care cosmetics were evaluated by the following methods for the familiarity of the agar gel particles with the skin and the uniform elongation of the cosmetics. These results are also shown in Table 3.

(Production method)
The aqueous medium agar gel particles as in Production Example B 2 ~B9 of Preparation A1 to A8, and mixed at a ratio shown in Table 3, was filled in a jar container, to obtain a skin care cosmetics.

(Collapse strength)
For the disintegration strength, after putting the cosmetic in an airtight container and storing at room temperature for 2 hours, 10 agar gel particles of each sample were taken out and measured by the following measurement method to obtain an average value of each sample. Judgment was made based on judgment criteria.
At room temperature (25 ° C.), 1 sample (particle size: 3.5 mm) was added to the texture analyzer TA. Using XTplus (manufactured by Stable Micro Systems), a probe made of a columnar polyacetal resin (manufactured by Delrin (registered trademark) DuPont) having a diameter of 12.5 mm was used as a probe, and compressed at a speed of 0.1 mm / sec. The collapse strength (maximum load value) required for the collapse was determined.

5 grade absolute evaluation (collapse strength): (judgment)
Over 9g: x (too hard)
Over 7g and under 9g: ○ (Slightly hard but no problem)
1-7 g: ◎ (very good hardness)
0.5g or more and less than 1g: ○ (Slightly soft but no problem)
Less than 0.5 g: x (too soft)

(Skin familiarity, uniform spread)
A panel test is conducted by 20 panelists specializing in cosmetics evaluation, and each panel member gives a rating based on the following evaluation criteria and gives a score. The average value is calculated from the scores of all panel members for each sample, and the following judgment is made. Judgment was made in four stages according to criteria. The skin familiarity was evaluated by paying attention to the remaining pieces of the agar gel particles, and the uniform spread was evaluated for the entire cosmetic.

(Skin familiarity)
5 grade absolute evaluation
(Score): (Evaluation)
5 points: Excellent skin familiarity, no residue of agar gel particles present. 4 points: Excellent skin familiarity, no agar gel particle residues left.
3 points: Normal
2 stores: Slightly unfamiliar with skin, and some agar gel particles remain
1 point: Skin conformance is poor, and agar gel particles remain

4-step criteria
(Judgment): (Average score)
: Over 4 points (very good)
○: More than 3 points and 4 points or less (good)
Δ: Over 2 points and under 3 points (slightly poor)
×: 2 points or less (defect)

(Uniform stretch spread)
5 grade absolute evaluation
(Score): (Evaluation)
5 points: Very smooth and uniform spread
4 points: Smooth and uniform stretch
3 points: Normal
2 points: Slightly uneven spread
1 point: non-uniform spread

4-step criteria
(Judgment): (Average score)
: Over 4 points (very good)
○: More than 3 points and 4 points or less (good)
Δ: Over 2 points and under 3 points (slightly poor)
×: 2 points or less (defect)

(result)
As apparent from Table 3, the skin care cosmetic of Example 8-1 3 agar gel particles are dispersed in a transparent aqueous component, had a good appearance. Moreover, since the agar gel particles disintegrate on the skin and are finely dispersed in the aqueous medium, the skin is very smooth and has a uniform spread and excellent skin familiarity.
Furthermore, the agar gel particles obtained from Example 8-1 3, result of the collapse strength were measured, all collapse strength was intended to fall numerical width of 0.5～9G.

On the other hand, in Comparative Example 1 in which the powder is not contained in the agar gel particles, the agar gel particles are hard and inferior in disintegration, so that there is a lack of dispersibility in the aqueous medium, and there is uniform spread and skin. In terms of familiarity, a good one was not obtained.
In Comparative Example 2 containing no carboxyvinyl polymer or alkyl-modified carboxyvinyl polymer in the aqueous medium, the viscosity of the aqueous medium is low, the agar gel particles settle, a good appearance cannot be obtained, and the agar gel particles In addition, it was difficult to pick up the aqueous medium uniformly, so that it was lacking in usability, and the uniform spread on the skin and the familiarity with the skin were poor.
In Comparative Example 3 which does not contain xanthan gum in the aqueous medium, the viscosity of the aqueous medium is about the same as that of Example 1, but the entanglement between the agar gel particles on the skin and the aqueous medium during application is weak, Uniform stretch spread and skin familiarity were poor.

Example 16: Cosmetic liquid (ingredient) (%)
Agar gel particles (white)
1. Agar (Note 1) 0.5
2. Alkyl-modified carboxyvinyl polymer (Note 2) 0.05
3. Triethanolamine 0.05
4). Gellan gum 0.05
5.1,3-Butylene glycol 20
6). Titanium oxide-coated synthetic phlogopite (Note 10) 4
7). Titanium oxide 1
8). Sorbitan sesquioleate 0.1
9. Liquid paraffin 2
10. Dimethylpolysiloxane (20 mm ² / s: 25 ° C.) 2
11. Sodium acetyl hyaluronate 0.001
12 Methyl paraoxybenzoate 0.1
13. Purified water remaining (100%)
Aqueous medium 14. Alkyl-modified carboxyvinyl polymer (Note 2) 0.07
15. Triethanolamine 0.07
16. Xanthan 1
17. Hydroxypropyl methylcellulose 0.35
18. 1,3-Butylene glycol 14
19. Edetate disodium 0.1
20. Methyl paraoxybenzoate 0.1
21. Purified water remaining (100%)
Content ratio (parts by mass) of agar gel particles 30
Content ratio of aqueous medium (parts by mass) 70
(Note 10) SHARON SUPER SPARKLE VIOLET 7600G (manufactured by CQV)

(Production method)
Agar gel particles A. After neutralizing by adding a part of component 13 and components 2 and 3, the remaining amounts of components 1 and 4 and component 13 are added and mixed.
B. Mix ingredients 5-12.
C. A is heated and dissolved uniformly at 90 ° C., then cooled, and B is added at 50 ° C. and mixed. D. Furthermore, the agar gel was obtained by solidifying by cooling.
E. D was heated to 70 ° C., cooled to 50 ° C., and dropped into 5 ° C. hydrocarbon oil to obtain particulate agar gel particles having a diameter of about 5.0 mm.
F. The agar gel particles obtained in E were washed with purified water.
Aqueous medium G. After neutralization by adding a part of component 21 and components 14 and 15, the remaining amounts of components 16 to 20 and component 21 were uniformly mixed using a desper to obtain an aqueous medium.
・ Cosmetic H. F30 parts by mass and G70 parts by mass were mixed and filled into a container with a dispenser to obtain a serum.

  The cosmetic liquid of the present invention has white gel particles dispersed therein, agar gel particles dispersed in a transparent aqueous medium, and a good appearance. In addition, since the agar gel particles were disintegrated and finely dispersed in the aqueous medium at the time of application, they were excellent in smoothness and uniform elongation and skin familiarity.

Example 17 Gel cream (ingredient) (%)
Agar gel particles Agar (Note 1) 1.6
2. Alkyl-modified carboxyvinyl polymer (Note 2) 0.08
3. Triethanolamine 0.08
4.1,3-Butylene glycol 20
5. Acrylates Copolymer (Note 11) 1
6). Titanium oxide 0.5
7). Talc 2
8). Mica titanium 4
9. Hydrogenated lecithin 5
10. Polyoxyethylene (10) cholesteryl ether 0.01
11. Acrylic acid / alkyl acrylate (C3-8)
Copolymer liquid (Note 12) 0.05
12 Sodium acetyl hyaluronate 1
13. Methyl paraoxybenzoate 0.1
14 Purified water remaining (100%)
Aqueous medium 15. Alkyl-modified carboxyvinyl polymer (Note 2) 0.1
16. Carboxyvinyl polymer (Note 7) 0.05
17. Sodium hydroxide 0.05
18. Xanthan 0.9
19.1,3-Butylene glycol 8
20. Edetate disodium 0.1
21. Glycerin 10
22. Tocopherol 0.1
23. Methyl paraoxybenzoate 0.1
24. PEG-400 (Note 13) 10
25. Purified water remaining (100%)
Content ratio (parts by mass) of agar gel particles 60
Content ratio of aqueous medium (parts by mass) 40
Note 11: Snowleaf S (manufactured by Shodate Plastic Industry Co., Ltd.)
Note 12: Ultrazol V-280C (manufactured by Ganz Kasei)
Note 13: Polyethylene glycol 20000 (manufactured by NOF Corporation)

(Production method)
Agar gel particles A. After neutralizing by adding a part of component 14 and components 2 and 3, the remaining amounts of component 1 and component 14 are added and mixed.
B. Ingredients 4-13 are mixed.
C. A is heated and dissolved uniformly at 90 ° C., then cooled, and B is added at 50 ° C. and mixed. D. Furthermore, the agar gel was obtained by solidifying by cooling.
E. D is heated to 70 ° C., cooled to 50 ° C., and then dropped into a mixed oil of silicone oil and hydrocarbon oil (1: 1) at 25 ° C. to form particulate agar gel particles having a diameter of about 6.5 mm. Obtained.
F. The agar gel particles obtained in E were washed with purified water.
Aqueous medium G. After neutralizing by adding component 17 to a part of component 25 and components 15 and 16, the remaining amounts of components 18 to 24 and component 25 were uniformly mixed using a desper to obtain an aqueous medium.
-Gel cream H. F60 parts by mass and G40 parts by mass were mixed and filled in a jar container to obtain a gel cream.

  The gel cream of the present invention had a good appearance with agar gel particles dispersed in a transparent aqueous medium. In addition, since the agar gel particles were disintegrated and finely dispersed in the aqueous medium at the time of application, they were excellent in smoothness and uniform elongation and skin familiarity.

Example 18 Body Gel Agar Gel Particle-1 (Pale Yellow)
(Ingredient) (%)
1. Agar (Note 1) 1.6
2. Carboxyvinyl polymer (Note 7) 0.08
3. Triethanolamine 0.08
4.1,3-Butylene glycol 20
5. Yellow iron oxide 2
6). Titanium oxide 0.5
7). Talc 1
8). Titanium dioxide coated synthetic phlogopite 5
9. Hydrogenated lecithin 0.05
10. Polyoxyetherene (10) Cholesteryl ether 0.01
11. Acrylic acid / alkyl acrylate (C3-8)
Copolymer liquid (Note 12) 0.05
12 Jojoba oil 1
13. Methyl paraoxybenzoate 0.1
14 Purified water remaining (100%)

Agar gel particle-2 (white)
(Ingredient) (%)
1. Agar (Note 1) 1.6
2. Carboxyvinyl polymer (Note 7) 0.08
3. Triethanolamine 0.08
4.1,3-Butylene glycol 20
5. Synthetic phlogopite 1
6). Titanium oxide 0.5
7). Talc 2
8). Titanium dioxide and anhydrous silicic acid-treated mica 5
9. Hydrogenated lecithin 0.05
10. Polyoxyetherene (10) Cholesteryl ether 0.01
11. Acrylic acid / alkyl acrylate (C3-8)
Copolymer liquid (Note 12) 0.05
12 Dimethylpolysiloxane (20 mm ² / s: 25 ° C.) 1
13. Methyl paraoxybenzoate 0.1
14 Purified water remaining (100%)
Aqueous medium 15. Alkyl-modified carboxyvinyl polymer (Note 2) 0.1
16. Carboxyvinyl polymer (Note 7) 0.05
17. Sodium hydroxide 0.05
18. Xanthan 0.9
19.1,3-Butylene glycol 8
20. Edetate disodium 0.1
21. Glycerin 10
22. Tocopherol 0.1
23. Methyl paraoxybenzoate 0.1
24. Ethanol 5
25. Purified water remaining (100%)
Content ratio (parts by mass) of agar gel particles 60
Content ratio of aqueous medium (parts by mass) 40

(Production method)
・ Agar gel particles-1
A. After neutralizing by adding a part of component 14 and components 2 and 3, the remaining amounts of component 1 and component 14 are added and mixed.
B. Ingredients 4-13 are mixed.
C. A is heated and dissolved uniformly at 90 ° C., then cooled, and B is added at 50 ° C. and mixed. D. Furthermore, the agar gel was obtained by solidifying by cooling.
E. D is heated to 70 ° C., cooled to 50 ° C., then dropped into a mixed oil of silicone oil and hydrocarbon oil (1: 1) at 25 ° C., and particulate agar gel particles having a diameter of about 6.5 mm 1 was obtained.
F. The agar gel particles-1 obtained in E were washed with purified water.
Agar gel particle-2
G. It manufactured similarly to the agar gel particle-1.
Aqueous medium H. After neutralizing by adding component 17 to a part of component 25 and components 15 and 16, the remaining amounts of components 18 to 24 and component 25 were uniformly mixed using a desper to obtain an aqueous medium.
・ Body gel I. F30 parts by mass, G30 parts by mass and H40 parts by mass were mixed and filled in a jar container to obtain a body gel.

  In the body gel of the present invention, the agar gel particles-1 and the agar gel particles-2 were dispersed in a transparent aqueous medium and had a good appearance. In addition, since the agar gel particles were disintegrated and finely dispersed in the aqueous medium at the time of application, they were excellent in smoothness and uniform elongation and skin familiarity.

Claims (6)

Disperse agar gel particles having an average particle size of 0.5 to 10 mm containing powder in an aqueous medium containing one or more selected from carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer and natural gum. Ri greens and cosmetic, characterized in that the powder comprises a plate-like powder having an average particle size of 40 to 250 [mu] m. The cosmetic according to claim 1 , wherein the content of the plate-like powder having an average particle size of 40 to 250 µm in the powder is 35 to 90% by mass .   The disintegration strength (maximum load value) when one of the agar gel particles is compressed at 0.1 mm / second using a texture analyzer at 25 ° C is 0.5 to 9 g. Cosmetics according to 1 or 2.   The cosmetic according to any one of claims 1 to 3, wherein the natural gum is xanthan gum.   The cosmetic according to any one of claims 1 to 4, wherein the aqueous medium has a viscosity at 25 ° C of 65,000 to 85000 mPa · s. The cosmetic according to any one of claims 1 to 5, wherein the cosmetic is a skin care cosmetic.