JP7079610B2 - Water-based emulsified cosmetics in oil for impregnation - Google Patents

Description

INDUSTRIAL APPLICABILITY The present invention comprises a cross-linked polyether-modified silicone or a cross-linked polyglycerin-modified silicone in a water-in-oil emulsified cosmetic for impregnation, which is impregnated into an impregnated body and then applied to the skin from the impregnated body with a finger or an applicator. The present invention relates to improvement of usability and correction effect of pores, etc. by blending an acrylic polymer or a siliconeized purulan having a dendrimer type siloxane structure in a side chain.

Conventionally, it has been common to use a bottle or a tube as a container for accommodating liquid cosmetics. However, with bottles and tubes, it is difficult to carry around when going out, and it is also difficult to easily perform makeup, so in recent years, liquid cosmetics have been impregnated into impregnated bodies such as sponges built in compact containers. , Cosmetics in the form of containers have been developed that are applied to the skin from an impregnated body using a finger or an applicator when used.

However, in the case of water-in-oil emulsified cosmetics that are removed from the impregnated body with a finger or an applicator and applied to the skin, it is necessary to consider the filling suitability and retention of the impregnated body. It cannot be said that the feeling of use and the effect of correcting pores and fine wrinkles are always sufficient.

Therefore, it is desired to develop a water-in-oil emulsified cosmetic for impregnation that can exhibit an excellent feeling of use and a correction effect of pores and fine wrinkles while maintaining the filling suitability and retention in the impregnated body.

Japanese Unexamined Patent Publication No. 2017-176816 Japanese Patent Application Laid-Open No. 2013-530252

The present invention has been made in view of the background art, and an object thereof is to be excellent in a cosmetic applied to the skin from an impregnated body with a finger or an application tool while maintaining the filling suitability and retention property in the impregnated body. It is an object of the present invention to provide a water-in-oil emulsified cosmetic for impregnation that can exert a feeling of use and a correction effect such as pores.

As a result of diligent studies by the present inventors to achieve the above object, an acrylic having a predetermined amount of crosslinked polyether-modified silicone or crosslinked polyglycerin-modified silicone and a predetermined amount of dendrimer-type siloxane structure in the side chain. By blending the polymer, it is possible to obtain a water-in-oil emulsified cosmetic for impregnation, which has an excellent feeling of use and an effect of correcting pores, etc., while maintaining the filling suitability and retention in the impregnated body. We have found and completed the present invention.

That is, in the present invention, (A) cross-linked polyether-modified silicone or cross-linked polyglycerin-modified silicone 0.4 to 6% by mass, and (B) acrylic polymer having a dendrimer-type siloxane structure in the side chain 0.3 to It is a water-in-oil emulsified cosmetic for impregnation, which contains 8% by mass and is impregnated into a fiber body made of polyester fiber .

Further, the present invention is a water-in-oil emulsified cosmetic for impregnation, characterized in that the viscosity measured at a temperature of 30 ° C. using a B-type rotational viscometer is 4000 to 28000 mPa · s.

Further, the present invention is a water-in-oil emulsified cosmetic for impregnation, which comprises impregnating an impregnated body, removing the impregnated body from the impregnated body with a finger or a coating tool, and applying the mixture to the skin.

Further, the present invention is a cosmetic product characterized in that an impregnated body impregnated with the above-mentioned water-in-oil emulsified cosmetic for impregnation is incorporated in a compact container having airtightness.

According to the present invention, it is possible to provide a water-in-oil emulsified cosmetic for impregnation, which is excellent in usability and correction effect of pores and the like while maintaining filling suitability and retention in an impregnated body.

In the present invention, a crosslinked polyether-modified silicone or a crosslinked polyglycerin-modified silicone is blended as the component (A).

The cross-linked polyether-modified silicone (also referred to as a polyether-modified silicone cross-linked product) is a polyether-modified silicone cross-linked product such as, for example, (dimethicone / (PEG-10 / 15)) cross-polymer. The cross-linked polyether-modified silicone includes a cross-linked alkyl-polyether-modified silicone, and this cross-linked alkyl-polyether-modified silicone is a further alkyl-modified version of the cross-linked polyether-modified silicone (alkyl co-modified type). ), For example, (PEG-10 / lauryldimethicone) crosspolymer, (PEG-15 / lauryldimethicone) crosspolymer and the like can be mentioned.

As these cross-linked polyether-modified silicones and cross-linked alkyl / polyether-modified silicones, commercially available products may be used as they are. For example, a gel kneaded with various cosmetic oils (for example, dimethicone, mineral oil, trioctanoin, squalane, etc.) sold by Shin-Etsu Silicone Co., Ltd. under the product numbers KSG21, KSG210, KSG240, KSG310, KSG330, KSG340, etc. Examples include dispersions.

Examples of the crosslinked polyglycerin-modified silicone of the component (A) include dimethicone (dimethicone / polyglycerin-3) crosspolymer (“KSG-710”; manufactured by Shin-Etsu Chemical Co., Ltd.).

The crosslinked polyglycerin-modified silicone of the component (A) includes an alkyl group-containing crosslinked polyglycerin-modified silicone, and the alkyl group-containing crosslinked polyglycerin-modified silicone includes mineral oil (lauryldimethicone / polyglycerin). 3) Cross-polymer ("KSG-810"; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), isododecane (lauryldimethicone / polyglycerin 3) cross-polymer ("KSG-820; manufactured by Shin-Etsu Chemical Industry Co., Ltd."), Triocta Noin (lauryl dimethicone / polyglycerin 3) cross-polymer ("KSG-830"; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), Squalane (lauryl dimethicone / polyglycerin 3) cross-polymer ("KSG-840"; Shin-Etsu Chemical Industry Co., Ltd.) (Manufactured by Co., Ltd.) and the like.

The blending amount of the component (A) is 0.4 to 6% by mass in the total amount of the cosmetic. The blending amount of the component (A) affects the feeling of use and the correction effect of pores, etc., and if the blending amount is less than 0.4% by mass, a moist feeling of use cannot be obtained and the correction effect of pores, etc. is poor. Will be enough. On the other hand, if the blending amount is more than 6% by mass, the freshness is impaired and the spread becomes heavy when applied.

In the present invention, an acrylic polymer having a dendrimer type siloxane structure in the side chain or a siliconeized pullulan is blended as the component (B).

The acrylic polymer having a dendrimer-type siloxane structure in the side chain is a polymer having an acrylic polymer as a main chain and a dendrimer-type polysiloxane in the side chain. A dendrimer is a resinous polymer having highly regular branches radially from one nucleus.

Examples of the acrylic polymer of the present invention include polymers whose constituent monomers are the monomers represented by the following general formula (1).

In the general formula (1), R is a hydrogen atom or a methyl group, preferably a methyl group. A is an alkylene group having 1 to 10 carbon atoms, preferably a methylene group, an ethylene group, and a propylene group, and particularly preferably a propylene group. D is a group corresponding to a dendrimer type polysiloxane and is represented by the following general formula (2).

R ¹ is an alkyl group or an aryl group having 1 to 10 carbon atoms, and examples of the alkyl group include a methyl group, a methyl group, a propyl group, a butyl group, a pentyl group, an isopropyl group, an isobutyl group, a cyclopentyl group and a cyclohexyl group. Is exemplified, and examples of the aryl group include a phenyl group and a naphthyl group. Among these, a methyl group and a phenyl group are preferable, and a methyl group is particularly preferable.
X ¹ is a silylalkyl group represented by the following formula (3) when i = 1.

In formula (3), R ¹ is the same as described above. R ² is an alkylene group having 2 to 10 carbon atoms, and is a linear alkylene group such as an ethylene group, a propylene group, a butylene group and a hexylene group; a methylmethylene group, a methylethylene group, a 1-methylpentylene group and 1 , A branched alkylene group such as a 4-dimethylbutylene group is exemplified. Among these, an ethylene group, a methylethylene group, a hexylene group, a 1-methylpentylene group and a 1,4-dimethylbutylene group are preferable, and an ethylene group is particularly preferable. R ³ is an alkyl group having 1 to 10 carbon atoms, and examples thereof include a methyl group, an ethyl group, a propyl group, a butyl group and an isopropyl group.

Xi ^{+ 1} is a group selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group, and the above-mentioned silyl alkyl group. a ⁱ is an integer from 0 to 3. i is an integer of 1 to 10, and indicates the number of layers of the silylalkyl group, that is, the number of repetitions of the silylalkyl group. Therefore, when the number of layers is 1, the dendrimer-type polysiloxane structure D is represented by the following general formula (4), which is one of the suitable examples of the dendrimer-type polysiloxane structure contained in the component of the present invention. Is.

In the general formula (4), R ¹ , R ² , and R ³ are the same as described above, and R ⁴ is the same as the hydrogen atom or the above R ¹ . a ¹ is the same as a ⁱ , but the average total number of a ¹ in one molecule is 0 to 7.
Further, as one of the suitable dendrimer type polysiloxane structures, a group represented by the following general formula (5) can be mentioned.

The acrylic polymer of the present invention comprises, in addition to the dendrimer-type polysiloxane-containing (meth) acrylic acid-based monomer represented by the above general formula (1), another (meth) acrylic acid alkyl ester monomer as a constituent monomer. It is preferably an acrylic polymer. For example, lower alkyl (meth) acrylates such as methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate; glycidyl (meth) acrylate; (meth). N-butyl acrylate, isobutyl (meth) acrylate, tert-butyl (meth) acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, (meth) Examples thereof include higher (meth) acrylates such as octyl acrylate, lauryl (meth) acrylate, and stearyl (meth) acrylate. In the present invention, it is preferable to have at least methyl methacrylate as a constituent monomer.

Further, the acrylic polymer of the present invention can also use other vinyl-based monomers as constituent monomers. For example, lower fatty acid vinyl esters such as vinyl acetate and vinyl propionate; higher fatty acid esters such as vinyl butyrate, vinyl caproate, vinyl 2-ethylhexanoate, vinyl laurate, vinyl stearate; styrene, vinyltoluene, benzyl (meth). ) Aromatic vinyl-type monomers such as acrylate, phenoxyethyl (meth) acrylate, vinylpyrrolidone; (meth) acrylamide, N-methylol (meth) acrylamide, N-methoxymethyl (meth) acrylamide, isobutoxymethoxy (meth). Amid group-containing vinyl-type monomers such as acrylamide and N, N-dimethyl (meth) acrylamide; hydroxyl group-containing vinyl-type monomers such as hydroxyethyl (meth) acrylate and hydroxypropyl alcohol (meth) acrylate; (meth). ) Acrylic acid, itaconic acid, crotonic acid, fumaric acid, maleic acid and other carboxylic acid-containing vinyl-type monomers, tetrahydrofurfuryl (meth) acrylate, butoxyethyl (meth) acrylate, ethoxydiethylene glycol (meth) acrylate, polyethylene glycol. Ester bond-containing vinyl-type monomers such as (meth) acrylate, polypropylene glycol mono (meth) acrylate, hydroxybutyl vinyl ether, cetyl vinyl ether, 2-ethylhexyl vinyl ether; (meth) acryloxypropyltrimethoxysilane, at one end (meth). ) Acrylic group-containing polydimethylsiloxane, unsaturated group-containing silicone compound such as polydimethylsiloxane containing a styryl group at one end; butadiene; vinyl chloride; vinylidene chloride; (meth) acrylonitrile; dibutyl fumarate; anhydrous Maleic acid; Dodecyl anhydride succinic acid; (meth) acrylic glycidyl ether: (meth) acrylic acid, itaconic acid, crotonic acid, fumaric acid, maleic acid and other radically polymerizable unsaturated carboxylic acids, alkali metal salts, ammonium salts and organic Amin salts; radically polymerizable unsaturated monomers having sulfonic acid groups such as styrene sulfonic acid, and their alkali metal salts, ammonium salts, organic amine salts; 2-hydroxy-3-methacrylicoxypropyltrimethylammonium chloride. Such as quaternary ammonium salts derived from (meth) acrylic acid, methacrylic acid esters of alcohols having tertiary amine groups such as methacrylic acid diethylamine esters, and quaternary ammonium salts thereof. Will be done.

Polyfunctional vinyl-based monomers can also be used, for example, trimethylolpropanetri (meth) acrylate, pentaerythritol tri (meth) acrylate, ethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, and the like. Polyethylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, trimethyl propantrioxyethyl (meth) Unsaturated group-containing silicone compounds such as acrylate, tris (2-hydroxyethyl) isocyanurate di (meth) acrylate, tris (2-hydroxyethyl) isocyanurate tri (meth) acrylate, and styryl group-blocking polydimethylsiloxane. Illustrated.

Further, a vinyl-based monomer containing a fluorinated organic group can also be used, and for example, one represented by the general formula: CH ₂ = CR ⁵ COOR ^f is preferably used. In the formula, R ⁵ is a hydrogen atom or a methyl group, and R ^f is a fluorinated organic group, for example,-(CH ₂ ) x- (CF ₂ ) y-R ⁶ [x = an integer of 0 to 3, An integer from y = 1 to 20, R ⁶ = H, F, -CH (CF ₃ ) ₂ or -CF (CF ₃ ) ₂ ], a linear or branched fluoroalkyl group, or -CH ₂ CH. _2- (CF ₂ ) m-CFR ^7- [OCF ₂ CF (CF ₃ )] n-OC ₃ F ₇ [m = 0 or 1, n = 0 to 5 integer, R ⁷ is F or CF ₃ ], Examples thereof include a fluoroalkyloxyfluoroalkylene group.

The acrylic polymer having the dendrimer type polysiloxane structure of the present invention in the side chain can be produced by polymerizing the above-mentioned monomer by a known method such as a radical polymerization method. The radical polymerization can be carried out, for example, by heating in a solution with a radical initiator, and a chain transfer agent can also be added if necessary. Specifically, for example, it can be produced according to the method described in Patent Documents 1 and 2.
The number average molecular weight of the acrylic polymer is preferably 3,000 to 2,000,000, more preferably 5,000 to 800,000.

Commercially available products can also be used as the acrylic polymer of the component (A) of the present invention, for example, Dow Corning ^(R) FA4001CM Silicone Acrylate [(Acrylate / polytrimethylsiloxy methacrylate) copolymer 30% and decamethylcyclopentasiloxane]. 70% Mixture, Toray Dow Corning Silicone Co., Ltd.], Dow Corning ^(R) FA4002ID Silicone Acrylate [(Acrylate / Polytrimethylsiloxy methacrylate) Copolymer 40% and Isododecan 60% Mixture, Toray Dow Corning. Made by Silicone Co., Ltd.].

The siliconeized pullulan of the component (B) is a compound represented by the following general formula (6).

In the above formula (6), R means a hydrogen atom or a [(CH ₃ ) ₃ SiO] ₃ Si (CH ₂ ) ₃ NHCO group. In siliconeized purulan, the binding ratio of the silicone compound to the reactive functional group of purulan varies depending on the type, but usually, the average number of bonds (substitution degree) of the silicone compound per 1 unit of the constituent sugar of the polysaccharide compound is 0.5 to. It is preferably 3.0. In the present invention, the degree of substitution is converted from the Si content (mass%) in the compound. In addition, when blending silicone-ized pullulan, it is possible to improve the ease of blending and the usability by dissolving it in low molecular weight silicone oil or light isoparaffin.

As the siliconeized pullulan used in the present invention, a tri (trimethylsiloxy) silylpropylcarbamide acid pullulan represented by the following formula (7) is preferable.

In the above formula (7), PL represents a glucose residue of pullulan.

As the silicone-ized pullulan, those manufactured by a known production method can be used (for example, Japanese Patent Application Laid-Open No. 10-29910). As commercially available products, for example, TSPL-30-ID (tri (trimethylsiloxy) silylpropylcarbamide pullulan, manufactured by Shinetsu Chemical Industry Co., Ltd., 30% isododecane solution), TSPL-30-D5 (tri (trimethylsiloxy) silyl). Pullulan propylcarbamide, manufactured by Shin-Etsu Chemical Industry Co., Ltd., 30% decamethylcyclopentasiloxane solution) can be mentioned.

The blending amount of the component (B) is 0.3 to 8% by mass in the total amount of the cosmetic. If the blending amount is less than 0.3% by mass, a moist feeling of use cannot be obtained when applied, and the fit is insufficient. In addition, the effect of correcting pores tends to decrease with the passage of time. On the other hand, if the blending amount exceeds 8% by mass, stickiness occurs, the feeling of use is inferior, and the make-up is liable to be twisted.

The water-in-oil emulsified cosmetic for impregnation of the present invention is a water-in-oil emulsified cosmetic for impregnation, which is used by impregnating an impregnated body and applying it to the skin from the impregnated body with a finger or an application tool.

The impregnating body for impregnating the water-in-oil emulsified cosmetic for impregnation of the present invention includes a non-woven fabric made of a single or mixed material such as resin, pulp and cotton, a fiber body processed with resin, and a foam such as sponge. Examples include a porous body having a continuous mechanism. The materials include NBR (acrylonitrile butadiene rubber), SBR (styrene butadiene rubber), NR (natural rubber), urethane, nylon, polyolefin, polyester, EVA (vinyl acetate), PVA (polyvinyl alcohol), silicon, and elastomer. However, the impregnated material that can contain the contents is not limited to these materials, but is a fiber body formed by using polyester fiber and has a hardness of 40 to 60 (). It is preferable to use a value measured by an F hardness meter) and a density of 0.006 to 0.1 g / cm ³ .

Examples of the application tool for taking the water-in-water emulsifying cosmetic for impregnation from the impregnated body and applying it to the skin include sponges, puffs, chips and the like which are usually used when applying the liquid cosmetic to the skin.

The oil content to be blended in the water-in-water emulsified cosmetic for impregnation of the present invention is not particularly limited as long as it is an oily component that can be blended in ordinary cosmetics, and is, for example, silicone oil, synthetic ester oil, and hydrocarbon oil. , Higher fatty acids, higher alcohols, oils and fats, waxes and the like.

Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane, and cyclic polysiloxanes such as decamethylpolysiloxane, dodecamethylpolysiloxane, and tetramethyltetrahydrogenpolysiloxane. Illustrated.

Synthetic ester oils include isopropyl myristate, cetyl octanate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate. , Lanolin acetate, Isocetyl stearate, Isocetyl isostearate, Cholesteryl 12-hydroxystearyl, Di-2-ethylhexylateethylene glycol, Dipentaerythritol fatty acid ester, N-alkylglycol monoisostearate, Neopentyl glycol dicaprate, Appleic acid Diisostearyl, di-2-heptylundecanoate glycerin, tri-2-ethylhexylatetrimethylolpropane, triisostearate trimethylrolpropane, tetra-2-ethylhexylatepentaneerythritol, tory2-ethylhexylateglycerin, triisostearate tri Methylol propane, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleic acid oil, acetoglyceride, palmitic acid 2-heptylun Decyl, diisobutyl adipate, N-lauroyl-L-glutamate-2-cutyldodecyl ester, di-2-heptylundecyl adipate, ethyllaurate, di-2-ethylhexyl sebatate, 2-hexyldecyl myristate, palmitic acid Examples thereof include 2-hexyldecyl acid, 2-hexyldecyl adipate, diisopropyl sebatate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, and crotamiton (C ₁₃ H ₁₇ NO).

Examples of the hydrocarbon oil include liquid paraffin, zokerite, squalene, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax and the like.

Higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behen (behenin) acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, tortric acid, isostearic acid, linoleic acid, linoleic acid, and eicosapentaenoic acid. (EPA), docosahexaenoic acid (DHA) and the like are exemplified.

Higher alcohols include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; monostearyl glycerin ether (bacyl alcohol), 2-decyltetradecinol, and lanolin alcohol. Examples thereof include branched alcohols such as cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.

Oils include avocado oil, camellia oil, evening primrose oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern ka oil, castor oil, and flaxseed oil. , Saflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese millet oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, triisopalmitic acid Liquid fats and oils such as glycerin; cacao butter, palm oil, horse fat, hardened palm oil, palm oil, beef fat, sheep fat, hardened beef fat, palm kernel oil, pork fat, beef bone fat, mokuro kernel oil, hardened oil, beef leg Examples thereof include solid fats and oils such as fats, mokurou, and hardened castor oil.

Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, Ibotaro, whale wax, montan wax, nukarou, lanolin, capoc wax, lanolin acetate, liquid lanolin, sugar cane, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojo. Examples thereof include barrow, hard lanolin, cellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether and the like.

Examples of the water compounded in the present invention include water and water-soluble components. Examples of the water-soluble component include lower alcohols, moisturizers, water-soluble polymers (natural, semi-synthetic, synthetic, inorganic) and the like.

Examples of the lower alcohol include ethanol, propanol, butanol, pentanol, hexanol and the like.

Moisturizing agents include glycerin, diethylene glycol, butylene glycol, polyethylene glycol, hexylene glycol, xylitol, sorbitol, martitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, elastin, amino acids, nucleic acids, cholesteryl-12-. Examples thereof include hydroxystearate, sodium lactate, bile acid salt, dl-pyrrolidone carboxylate, short chain soluble collagen, diglycerin (EO) PO adduct, isaiyobara extract, sardine extract, melilot extract and the like. To.

Natural water-soluble polymers include ala-avia gum, tragacanto gum, galactan, guar gum, locust bean gum, tamarint gum, carob gum, karaya gum, carrageenan, pectin, canten, quince seed (malmero), algae colloid (cassow extract), starch (rice, corn). , Potato, wheat), plant-based water-soluble polymers such as glycyrrhizic acid; microbial-based water-soluble polymers such as xanthan gum, dextran, succinoglycan, and burran; animal-based water-soluble polymers such as collagen, casein, albumin, and gelatin. Etc. are exemplified.

Semi-synthetic water-soluble polymers include starch-based water-soluble polymers such as carboxymethyl starch and methyl hydroxypropyl starch; methyl cellulose, nitrocellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, cellulosic sodium sulfate, hydroxypropyl cellulose, and carboxy. Cellulose-based water-soluble polymers such as methyl cellulose (CMC), crystalline cellulose, and cellulose powder; arginic acid-based water-soluble polymers such as sodium alginate and propylene glycol alginate are exemplified.

Examples of the synthetic water-soluble polymer include vinyl-based water-soluble polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, and carboxyvinyl polymer (carbopol); polyethylene glycol 20,000, 4,000,000, 600, etc. Polyoxyethylene-based water-soluble polymer such as 000; Copolymer-based water-soluble polymer such as polyoxyethylene polyoxypropylene copolymer; Acrylic-based water-soluble polymer such as sodium polyacrylate, polyethyl acrylate, and polyacrylamide. In addition, polyethylene imine, cationic polymer, etc. are exemplified.

In the water-in-oil emulsified cosmetic for impregnation of the present invention, an emulsifier of HLB 7 or less can be used as an emulsifier. Examples of the emulsifier having an HLB of 7 or less include polyether-based silicones such as polyether-modified silicones; polyoxyethylene-hardened sardines such as POE (5), POE (7.5), and POE (10) hardened sardines; dipolyhydroxy. Stearic acid esters: High molecular weight lipophilic activators such as dipolyhydroxypolyglyceryl-2 stearate, PEG30 dipolyhydroxystearate; cetyldimethiconecopolyol and the like.

Among the emulsifiers, poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, polyoxyethylene methylpolysiloxane copolymer, silicone chain-branched methylpolysiloxane copolymer, alkyl-chain branched polyoxyethylenemethylpoly Siloxane copolymer, alkyl chain / silicone chain branched polyoxyethylene methyl polysiloxane copolymer, cross-linked polyoxyethylene methyl polysiloxane, alkyl group-containing cross-linked polyoxyethylene methyl polysiloxane, branched polyglycerin-modified silicone, It is preferable to use a polyether-modified silicone such as an alkyl group-branched polyglycerin-modified silicone.

As a poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, the commercially available product is DOWN CORNING TORAY TS Polymer 50-D5; manufactured by Dow Corning, PEG / PPG-20 / 22 butyl ether dimethicone (“KF-6012”). ”; PEG / PPG-20 / 20 dimethicone (“SH3749”; manufactured by Toray Dow Corning Silicone), lauryl PEG / PPG-18 / 18 methicone (“ 5200 Formulation Aid”; Toray. Dow Corning), PEG / PPG-19 / 19 dimethicone (“BY22-008”; Toray Dow Corning) and the like.

As commercially available polyoxyethylene methyl polysiloxane copolymers, PEG-3 dimethicone (“KF-6015”; manufactured by Shinetsu Chemical Industry Co., Ltd.) and PEG-9 methyl ether dimethicone (“KF-6016”; Shinetsu Chemical Industry Co., Ltd.) PEG-10 dimethicone (“KF-6017”; manufactured by Shinetsu Chemical Industry Co., Ltd.), PEG-11 methyl ether dimethicone (“KF-6011”; manufactured by Shinetsu Chemical Industry Co., Ltd.), PEG-9 dimethicone (“KF-”) 6013 ”; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), PEG-12 dimethicone (“SH3771M”, “SH3772M”, “SH3773M”, “SH3775M”, etc .; manufactured by Toray Dow Corning Co., Ltd.) and the like.

The amount of the emulsifier to be blended and the combination of several types are not particularly limited, but in an emulsified makeup product in which a powder is usually blended in an amount of 10% or more, the emulsifier is adsorbed on the powder, so that the blending amount of the emulsifier is large. If the amount of the emulsifier is increased, the usability tends to be inferior. However, when the dendrimer type siloxane-containing acrylic polymer is used in combination, the amount of the emulsifier can be reduced. If the agent) is suppressed to less than 5%, it is preferable in terms of usability.

The water-in-oil emulsified cosmetic for impregnation of the present invention can be produced by a conventional method by blending other components within a range that does not impair the effects of the present invention.

Other ingredients include fine particle powder, pigment grade powder, thickener, metal ion blocker, amino acid, organic amine, pH adjuster, skin nutrient, vitamin, antioxidant, antioxidant, fragrance, etc. Can be mentioned.

As thickeners, Arabic gum, carrageenan, karaya gum, tragacanto gum, carob gum, quince seed (malmero), casein, dextrin, gelatin, sodium pectinate, sodium aragnate, methyl cellulose, ethyl cellulose, CMC, hydroxyethyl cellulose, hydroxypropyl cellulose, PVA, PVM, PVP, Sodium Polyacrylate, Carboxyvinyl Polymer, Locust Bean Gum, Gua Gum, Tamarinto Gum, Dialkyldimethylammonium Sulfate Cellulose, Xanthan Gum, Aluminum Magnesium Silica, Bentnite, Hectrite, A1Mg Silica, Laponite, Examples thereof include silicic anhydride, dextrin fatty acid ester, and organically modified clay minerals. As the dextrin fatty acid ester, palmitic acid dextrin ester, palmitic acid / 2-ethylhexanoic acid) dextrin ester is known. While disteardimonium hectorite is preferable in terms of stability, it is known to be heavy in usability. According to the present invention, a stable composition can be obtained without blending such a thickener.

As the powder for adjusting the usability, a silicone resin, a silicone rubber or the like forming a three-dimensional network structure can be blended.

The water-in-oil emulsified cosmetic for impregnation of the present invention can be applied to cosmetics, pharmaceuticals, and quasi-drugs widely applied to the outer skin. Examples of applications include products such as foundations, makeup bases, serums, emulsions, creams, and dermatological ointments.

The water-in-oil emulsified cosmetic for impregnation of the present invention can be made into a container form suitable for carrying by impregnating the impregnated body with the impregnated body and then storing it in a compact container having airtightness.

Hereinafter, the present invention will be described in more detail with reference to Examples, but these Examples are not limited to the present invention. The numerical value indicating the blending amount in the table indicates the mass% in the total amount of cosmetics. When a commercially available raw material product is used, the amount of the actual content (solid content) excluding the solvent and the like is displayed.

For the crosslinked polyether-modified silicones shown in Table 1, KSG-210 manufactured by Shin-Etsu Silicone Co., Ltd., which comprises 20-30% by mass of (dimethicone / (PEG-10 / 15)) crosspolymer and 70-80% by mass of dimethicone, was used. For dendrimer-type siloxane-containing acrylic polymers, use Dow CorningR FA4001CM Silicone Acrylate, which consists of 30% by mass of polymer and 70% by mass of decamethyl opentasiloxane, or Dow CorningR FA4002CM Silicone Acrylate, which consists of 40% by mass of polymer and 60% by mass of isododecane. As for trimethylsiloxysilicic acid, SSD-R3 manufactured by Shin-Etsu Silicone Co., Ltd., which was composed of 50% by mass of trimethylsiloxysilicic acid and 50% by mass of decamethylcyclopentasiloxane, was used and blended so as to have the actual amount in the table.

The evaluation items "moistness", "no stickiness", and "pore correction effect" were evaluated by a sensory test by 10 panelists for each of the case of applying with a finger and the case of applying a puff. As the impregnated body, a fiber body formed by using polyester fiber (hardness 40 to 60 (measured value by F hardness meter), density 0.018 g / cm ³ ) was used.

As shown in Table 1, in Examples 1 to 8, good results could be obtained for all the evaluation items.

Usually, in foundations and the like, fine particle titanium oxide is blended in order to impart SPF. For example, when fine particle titanium oxide of 3% by mass or more is blended, it is generally easy to feel a squeaky feeling and a powdery feeling, and the evaluation of the wrinkle and the powdery feeling after 3 hours tends to be inferior. It was confirmed that in the water-in-oil emulsified cosmetic for impregnation of the present invention, good results can be obtained in all the evaluation items even when fine particle titanium oxide is blended.

The viscosities of Examples 1 to 8 are about 4000 to 28000 mPa · S measured at a temperature of 30 ° C. using a B-type rotational viscometer, and all of them can be easily filled and impregnated into the impregnated body. It was confirmed that it could be stably retained in the impregnated body for a long period of time after impregnation. Further, when it is less than 4000 mPa · s, the fit feeling is insufficient and it is difficult to obtain the pore correction effect, and when it exceeds 28000 mPa · s, kinking tends to occur with time. The ratio of the non-volatile oil content to the total oil content is preferably 15 to 60%, and if it is less than 15% or more than 60%, the effect of the present invention is difficult to obtain.

Hereinafter, a prescription example of the water-in-oil emulsified cosmetic for impregnation according to the present invention will be shown. The unit of the blending amount is mass%. When a commercially available raw material product is used, the amount of the actual content (solid content) excluding the solvent and the like is displayed.

In Formulation Examples 1 and 2, a dimethicone (dimethicone / polyglycerin-3) crosspolymer was blended as the crosslinked polyglycerin-modified silicone of the component (A), and in Formulation Examples 3 and 4, the crosslinked type of the component (A) was added. As a polyether-modified silicone, a (dimethicone / (PEG-10 / 15)) crosspolymer is blended.

All of the cosmetics shown in the prescription examples are excellent in usability, pore correction effect, and storage stability, and can be applied to various makeup products.

Claims (4)

(A) Cross-linked polyether-modified silicone or cross-linked polyglycerin-modified silicone 0.4 to 6% by mass,
(B) Acrylic polymer having a dendrimer type siloxane structure in the side chain of 0.3 to 8% by mass and
A water-in-oil emulsified cosmetic for impregnation, which comprises impregnating a fiber body made of polyester fiber . The water-in-oil emulsified cosmetic for impregnation according to claim 1, wherein the viscosity measured at a temperature of 30 ° C. using a B-type rotational viscometer is 4000 to 28000 mPa · s. The water-in-oil emulsified cosmetic for impregnation according to claim 1 or 2, wherein the impregnated body is impregnated and the impregnated body is removed from the impregnated body with a finger or an application tool and applied to the skin. A cosmetic product comprising an impregnated body impregnated with the water-in-oil emulsified cosmetic for impregnation according to any one of claims 1 to 3 in a compact container having airtightness.