Emulsion-type cosmetics

Abstract

To provide emulsified cosmetics that have good compatibility with skin when applied, are difficult to cause secondary adhesion even over time, and maintain the brightness of finish.SOLUTION: Provided is an emulsified cosmetic containing the following components (A), (B) and (C): (A) 0.1 to 30 mass% of a silicone film forming agent; (B) polysilicone-15; and (C) 0.1 to 4 mass% of an ester oil other than the component (B), the mass ratio (A) / ((B)+(C)) of the component (A) to the total amount of the components (B) and (C) being 0.25 or more.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an emulsion-type cosmetic preparation. [Background technology]

[0002] BACKGROUND ART Cosmetics containing film-forming ingredients have been investigated to date with the aim of improving the uniformity of cosmetic films and the durability of cosmetic films. For example, Patent Document 1 describes that a cosmetic containing a specific resin composition obtained by fractionating carnauba wax, liquid oil, and powder has a smooth, non-sticky feel when used, excellent adhesion to the skin, and cosmetic long-lasting properties, and forms a uniform cosmetic film to produce excellent cosmetic effects. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2013 / 147113 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional cosmetics have had problems with secondary adhesion of the cosmetic film over time and maintaining brightness over time. [Means for solving the problem]

[0005] The present inventors have discovered that by combining a silicone film-forming agent, an ester oil, and polysilicone-15 in a specific ratio, it is possible to obtain an emulsion-type cosmetic that has good compatibility upon application, is resistant to secondary adhesion over time, and provides a bright, lasting finish, and has thus completed the present invention.

[0006] The present invention comprises the following components (A), (B) and (C): (A) 0.1 to 30 mass% of a silicone film-forming agent, (B) Polysilicone-15, (C) 0.1 to 4 mass% of ester oil other than component (B) Contains The present invention relates to an emulsion-type cosmetic preparation in which the mass ratio (A) / ((B)+(C)) of component (A) to the total amount of components (B) and (C) is 0.25 or more. [Effects of the Invention]

[0007] The emulsion-type cosmetic of the present invention has good compatibility when applied, is resistant to secondary adhesion over time, and provides a lasting brightness of the finish. DETAILED DESCRIPTION OF THE INVENTION

[0008] Component (A) used in the present invention is a silicone-based film-forming agent. Any film-forming agent that is commonly used in cosmetics can be used as the film-forming agent, and those that are solid at 25°C are preferred. Examples of the film-forming agent of component (A) include trimethylsiloxysilicate, fluorine-modified silicone resin, and acrylic silicone resin.

[0009] Among the components (A), component (A-1) trimethylsiloxysilicate is not limited as long as it is a compound used in ordinary cosmetics, and is a compound having a crosslinked structure with a siloxane structure as the main skeleton, such as [(CH3)3SiO 1 / 2 ] m [SiO2] n (m is 1 to 3, n is 0.5 to 8) is preferred. From the viewpoints of cosmetic durability and finish, the component (A-1) trimethylsiloxysilicate preferably has a mass-average molecular weight of 1,000 to 10,000, more preferably 2,000 to 9,000, and even more preferably 3,000 to 6,000. Furthermore, its form may be any of liquid, gum, paste, or solid at 25°C, but from the viewpoints of cosmetic durability and finish, a solid form is preferred. From the viewpoint of blendability, it can be used in the form of a solution or dispersion diluted with a solvent, or in the form of a solution or dispersion obtained by premixing. The solvent used for dilution or dispersion is preferably one or more selected from dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and isododecane, with volatile dimethylpolysiloxane and decamethylcyclopentasiloxane being more preferred. Volatile refers to a flash point of 35 to 87°C.

[0010] Commercially available products of component (A-1) include those dissolved in a solvent in advance, such as KF-7312J (50% solids decamethylcyclopentasiloxane solution), KF-9021 (50% decamethylcyclopentasiloxane solution), and X21-5249 (50% decamethylcyclopentasiloxane solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.), SS4267 (35% dimethylpolysiloxane solution), and SR1000 (all manufactured by Momentive Performance Materials Japan, LLC), BY11-018 (30% cyclopentasiloxane solution) (manufactured by Dow Corning Toray Silicones), and BELSIL TMS 803 (manufactured by Wacker Chemie AG).

[0011] Among the components (A), the component (A-2) fluorine-modified silicone resin is a compound represented by the general formula (1): R 1 p SiO (4-p) / 2 (1) (In the formula, R 1 is a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group, or a group represented by the general formula -R 2 -Rf(R 2represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf represents a perfluoroalkyl group having 1 to 8 carbon atoms), and 2 -Rf is an essential functional group, and p is an average number in the range of 1.0≦p≦1.8. Preferably, the compound has a structure represented by the following formula: From the viewpoint of adhesion to the skin, the fluorine-modified silicone resin has silanol groups in the molecule, and the proportion of OH groups in the silanol groups is preferably 0.1 to 5 mass %, more preferably 0.5 to 5 mass %, based on the mass of the resin.

[0012] Component (A-2) is preferably a solid at 25°C, and from the viewpoint of compatibility, it can be used in the form of a solution or dispersion diluted with a solvent, or in the form of a solution or dispersion obtained by pre-mixing. As the solvent for dilution or dispersion, it is preferable to dissolve it in cyclic silicone, dimethylpolysiloxane, etc. As the cyclic silicone, it is preferable to dissolve it in one or more selected from octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5). As such fluorine-modified silicone resins, commercially available products such as XS66-B8226, XS66-C1191, and XS66-B8636 (all manufactured by Momentive Performance Materials), which have the INCI name "Trifluoropropyldimethyl / Trimethylsiloxysilicate," can be used.

[0013] Among the components (A), the component (A-3) acrylic silicone resin includes vinyl polymers having a carbosiloxane dendrimer structure in the side chain, and acrylic-silicone graft copolymers. Examples of vinyl polymers having a carbosiloxane dendrimer structure in the side chain include silicone dendrimer-acrylic copolymers, which can be produced according to the production methods described in, for example, Japanese Patent Application Laid-Open Nos. 11-1530 and 2000-63225. The number average molecular weight of the vinyl polymer having a carbosiloxane dendrimer structure used in the present invention is preferably 3,000 to 2,000,000, more preferably 5,000 to 800,000, from the viewpoint of cosmetic durability and finish. In terms of cosmetic durability and finish, the composition is preferably in a solid state. The vinyl polymer having a carbosiloxane dendrimer structure can be blended in a solid state, but it can also be dissolved in a solvent before use. Examples of the solvent include silicone oil and hydrocarbon oil, and one or more selected from dimethylpolysiloxane, decamethylcyclopentasiloxane, and isododecane can be used.

[0014] The vinyl polymer having a carbosiloxane dendrimer structure in its side chain is preferably a silicone dendrimer-acrylic copolymer, and is preferably labeled as "(Acrylates / Polytrimethylsiloxymethacrylate) Copolymer" (INCI name: "Acrylates / Polytrimethylsiloxymethacrylate Copolymer") in cosmetics. Commercially available products such as FA4001CM (30% by mass decamethylcyclopentasiloxane solution), FA4002ID (40% by mass isododecane solution), and FA4003DM (40% by mass dodecamethylpentasiloxane solution) (all manufactured by Dow Corning Toray Co., Ltd.) that have been dissolved in a solvent in advance can be used.

[0015] The acrylic-silicone graft copolymer is a radical polymer of an organopolysiloxane compound having a radically polymerizable group at one end of the molecular chain and a radically polymerizable monomer mainly composed of acrylate and / or methacrylate. For example, the acrylic-silicone graft copolymers described in JP-A-2-25411 and JP-A-2-132141, as well as the acrylic-silicone graft copolymers described in JP-A-3-162442 and JP-A-2003-104825 can be used.

[0016] The acrylic-silicone graft copolymer is preferably one having the cosmetic labeling name "(Acrylates / Dimethicone) Copolymer" (INCI name "Acrylates / Dimethicone Copolymer"), and commercially available products such as KP545 (30% by mass decamethylcyclopentasiloxane solution), KP549 (40% by mass methyltrimethicone solution), and KP550 (40% by mass isododecane solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.) that have been dissolved in a solvent in advance can be used.

[0017] From the viewpoints of achieving excellent compatibility with the skin and long-lasting makeup, component (A) preferably contains one or more compounds selected from trimethylsiloxysilicate, fluorine-modified silicone resins, and vinyl polymers having a carbosiloxane dendrimer structure in the side chain, and more preferably contains at least trimethylsiloxysilicate.

[0018] One or more types of component (A) can be used, and from the viewpoints of achieving good compatibility upon application, suppressing secondary adhesion over time, and improving skin brightness, the content is 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more, and 30% by mass or less, preferably 20% by mass or less, more preferably 10% by mass or less, and even more preferably 6% by mass or less, of the total composition. The content of component (A) is 0.1 to 30% by mass, preferably 0.3 to 20% by mass, more preferably 0.5 to 10% by mass, and even more preferably 1 to 6% by mass.

[0019] The component (B) used in the present invention is polysilicone-15. As polysilicone-15, commercially available products such as Parsol SLX (manufactured by DSM) can be used. From the viewpoints of achieving good compatibility upon application, suppressing secondary adhesion over time, and improving skin brightness, the content of component (B) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.5% by mass or more, and is preferably 20% by mass or less, more preferably 10% by mass or less, and even more preferably 8% by mass or less, based on the total composition. The content of component (B) is preferably 0.05 to 20% by mass, more preferably 0.1 to 10% by mass, and even more preferably 0.5 to 8% by mass.

[0020] Component (C) used in the present invention is an ester oil other than component (A). The ester oil is not limited as long as it is one that is commonly used in cosmetics, but non-volatile ester oils are preferred. Here, "non-volatile" means that it does not have a flash point between 35 and 87°C, and preferably has fluidity in the form of a liquid or paste at 25°C.

[0021] Examples of such ester oils include isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, tricyclodecanemethyl isononanoate, hexyl laurate, octyldodecyl malate, cetyl 2-ethylhexanoate, 2-hexyldecyl 2-ethylhexanoate, isopropyl myristate, 2-hexyldecyl myristate, octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, ethyl isostearate, isopropyl isostearate, and isostearate. Isobutyl phosphate, 2-hexyldecyl isostearate, 2-ethylhexyl hydroxystearate, octyldodecyl oleate, oleyl oleate, octyldodecyl ricinoleate, octyl paramethoxycinnamate, monoester oils such as propylene carbonate; di-2-hexylhexyl succinate, bis-ethoxydiglycol succinate, di(caprylic / capric)propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate, glyceryl diisostearate, diisostearic acid Diester oils such as polyglyceryl, propanediol diisostearate, diisostearyl malate, di(phytosteryl / octyldodecyl) lauroyl glutamate, di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, neopentyl glycol di-2-ethylhexanoate, neopentyl glycol dioctanoate; trimethylolpropane triisostearate, glyceryl triisostearate, triisostearyl Triester oils such as diglyceryl phosphate, jojoba oil, trimethylolpropane tri-2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, caprylic / capric triglyceride, glyceryl trioctanoate, tritridecyl trimellitate, macadamia nut oil, olive oil, castor oil, jojoba oil, avocado oil, and sunflower oil; pentaerythrityl tetraoctanoate, diglyceryl tetraisostearate, dipentaerythrityl tetraisostearate, and pentaerythrityl tetraisostearate.

[0022] Of these, from the viewpoints of good compatibility upon application and excellent skin compatibility, monoester oils are preferred, octyl paramethoxycinnamate and isononyl isononanoate are more preferred, and those containing at least octyl paramethoxycinnamate are even more preferred.

[0023] Component (C) may be used alone or in combination with two or more other compounds, and from the viewpoint of improving compatibility upon application, the content is 0.1 mass% or more, preferably 0.3 mass% or more, more preferably 0.5 mass% or more, even more preferably 1 mass% or more, and 4 mass% or less of the total composition. The content of component (C) is 0.1 to 4 mass%, preferably 0.3 to 4 mass%, more preferably 0.5 to 4 mass%, and even more preferably 1 to 4 mass% of the total composition.

[0024] In the present invention, the mass ratio (A) / ((B)+(C)) of component (A) to the total amount of components (B) and (C) is, from the viewpoints of achieving good compatibility upon application, suppressing secondary adhesion over time, and improving skin brightness, 0.25 or more and preferably 5 or less, more preferably 2 or less, and even more preferably 1 or less. Furthermore, the mass ratio (A) / ((B)+(C)) of component (A) to the total amount of components (B) and (C) is 0.25 or more and preferably 0.25 to 5, more preferably 0.25 to 2, and even more preferably 0.25 to 1.

[0025] The emulsion-type cosmetic of the present invention may further contain a surfactant, which is preferable because it provides excellent makeup durability and an even finish after application to the skin. There are no limitations on the surfactant as long as it is one that is commonly used in cosmetics, but from the viewpoint of cosmetic durability, nonionic surfactants are preferred. Examples of nonionic surfactants include sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, polyethylene glycol fatty acid esters, sucrose fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyoxyethylene phytostanol ether, polyoxyethylene phytosterose ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, alkyl glyceryl ether-modified silicones, polyether-modified silicones, polyoxyalkylene-alkyl co-modified silicones, and polyoxyalkylene-fluoroalkyl co-modified silicones.

[0026] Of these, from the viewpoint of enhancing the dispersibility and solubility of water and water-soluble components in oil, silicone surfactants are preferred, and polyether-modified silicones are more preferred. Examples of polyether-modified silicones that can be used include commercially available products such as SH3771M, SH3772M, SH3773M, SH3775M, SH3749, and DC5200 (all manufactured by Dow Corning Toray Co., Ltd.), and KF-6011, KF-6012, KF-6013, KF-6015, KF-6016, KF6017, and KF-6004 (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0027] In order to enhance the dispersibility and solubility of water and water-soluble components in oil, the nonionic surfactant preferably has an HLB value of 1 or more and 7 or less, and more preferably an HLB value of 2 or more and 6 or less, in the case of water-in-oil emulsion cosmetics.

[0028] Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and for nonionic surfactants, it can be calculated using Griffin's formula. The HLB of a surfactant mixture consisting of two or more nonionic surfactants can be calculated as follows: The HLB of the surfactant mixture is the arithmetic average of the HLB values ​​of each nonionic surfactant based on their blending ratio.

[0029] Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of nonionic surfactant X. Wx is the weight (g) of nonionic surfactant X having a value of HLBx

[0030] The nonionic surfactants can be used alone or in combination of two or more, and from the viewpoint of achieving excellent cosmetic durability and a smooth finish after application to the skin, the content is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, and is preferably 8% by mass or less, more preferably 5% by mass or less, and even more preferably 2% by mass or less, based on the total composition. The content of the nonionic surfactant is preferably 0.1 to 8% by mass, more preferably 0.3 to 5% by mass, and even more preferably 0.5 to 2% by mass.

[0031] The emulsion cosmetic of the present invention may further contain a coloring pigment. The color pigments are those used in ordinary cosmetics, such as titanium oxide, zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red iron oxide, iron oxide red, iron blue red, ultramarine blue red, chromium oxide, chromium hydroxide, and other metal oxides, manganese violet, cobalt titanate, and other metal complexes, as well as inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 2 Examples of the pigments to be treated include synthetic organic pigments such as Red No. 20, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, and Blue No. 404; and natural organic pigments such as β-carotene, caramel, and paprika color, as well as composites of these colored pigments and composite pigments combining these colored pigments with pearl pigments. Examples of the pearl pigments to be treated include natural or synthetic inorganic powders such as mica, phlogopite, talc, silica, sericite, mica, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, and plate-like alumina powder. Specific examples of composite pigments include titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated mica titanium, iron oxide-coated synthetic phlogopite, chromium oxide-coated mica titanium, titanium oxide-coated glass powder, iron oxide-coated glass powder, titanium oxide-containing glass powder, and iron oxide-containing glass powder. The color pigment is preferably at least one or more selected from titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide, and more preferably contains at least titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide.

[0032] These color pigments can be used as they are, or they can be used after being subjected to a hydrophobic treatment. Examples of hydrophobic treatments include surface treatments such as silicone treatment, alkyl treatment, alkylsilane treatment, metal soap treatment, water-soluble polymer treatment, amino acid treatment, acylated amino acid treatment, lecithin treatment, organic titanate treatment, polyol treatment, acrylic resin treatment, methacrylic resin treatment, urethane resin treatment, fluorine compound treatment, etc. Among these, from the viewpoints of good adhesion to the skin and suppression of secondary adhesion, it is preferable to include one or more of the silicone treatment, alkylsilane treatment, amino acid treatment, and acylated amino acid treatment, and it is more preferable to include at least a silicone treatment. The color pigment can be subjected to a hydrophobic treatment by a conventional method.

[0033] As the coloring pigment, it is preferable to use a combination of one or more selected from hydrophobized yellow iron oxide, hydrophobized black iron oxide, and hydrophobized red iron oxide with hydrophobized titanium oxide, and it is more preferable to use a combination of one or more selected from silicone-treated yellow iron oxide, silicone-treated black iron oxide, and silicone-treated red iron oxide with silicone-treated titanium oxide.

[0034] One or more color pigments can be used, and in order to achieve a beautiful makeup effect on the skin, the content is preferably 1 to 30 mass % of the total composition, more preferably 3 to 25 mass %, and even more preferably 4 to 18 mass %.

[0035] In the present invention, the water content is preferably 1% by mass or more, more preferably 10% by mass or more, and preferably 60% by mass or less, more preferably 40% by mass or less, based on the total composition, from the viewpoint of excellent usability. The water content is preferably 1 to 60% by mass, more preferably 10 to 40% by mass, based on the total composition.

[0036] In addition to the above-mentioned components, the emulsion cosmetic of the present invention can contain various components used in ordinary cosmetics, provided that the effects of the present invention are not impaired. These components include, for example, oily components other than those mentioned above, powders other than those mentioned above, water-soluble polymers, antioxidants, vitamins, preservatives, pH adjusters, fragrances, plant extracts, moisturizers, colorants, cooling agents, antiperspirants, disinfectants, skin activators, etc.

[0037] The emulsion cosmetic of the present invention can be produced by a conventional method and can be either a water-in-oil emulsion cosmetic or an oil-in-water emulsion cosmetic, with water-in-oil emulsion cosmetic being preferred. Furthermore, the formulation may be in the form of a liquid, emulsion, paste, cream, gel, solid, or the like. The emulsion-type cosmetic of the present invention can be used for cosmetics, quasi-drugs, and pharmaceutical applications, and can be applied, for example, as makeup cosmetics such as makeup base, foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, and lipstick; and ultraviolet protection cosmetics such as sunscreen emulsion and sunscreen cream. It is suitable as a makeup cosmetic. [Example]

[0038] Examples 1 to 9, Comparative Examples 1 to 4 Water-in-oil emulsion cosmetics (base cosmetics) with the compositions shown in Table 1 were prepared and evaluated for compatibility when applied to the skin, the absence of secondary adhesion to the mask 4 hours after application, and the brightness of the skin 4 hours after application. The results are also shown in Table 1.

[0039] (Manufacturing method) At 25°C, the powder component was added to an oil phase component containing components (A), (B), and (C) and dispersed, and then the aqueous phase component was added and stirred with a homomixer to produce a water-in-oil emulsion cosmetic.

[0040] (Evaluation method) Five expert evaluators evaluated each cosmetic product's compatibility with the skin when applied, then applied foundation (Sofina Alblanc Trans Clear White Foundation UV Powder) over it, and then put on a mask (pleated mask, material: nonwoven fabric). After four hours, they evaluated the lack of secondary adhesion to the mask and the brightness of the skin using the following criteria. The results are shown as the total scores of the five experts.

[0041] (1) Absorption when applied to the skin: 5: Very familiar. 4;Familiar. 3: Somewhat familiar. 2: Not very familiar. 1: Not familiar at all.

[0042] (2) No secondary adhesion to the mask after 4 hours of application to the skin: 5;There is no foundation on the mask. 4; There is almost no foundation on the mask. 3: There isn't much foundation on the mask. 2: There is foundation on the mask. 1: There is a lot of foundation on the mask.

[0043] (3) Skin brightness after 4 hours of application: 5;Makeup skin looks brighter. 4;Makeup skin looks slightly brighter. 3; My makeup-covered skin doesn't look very bright. 2; Makeup does not look bright. 1. My makeup-covered skin doesn't look bright at all.

[0044] [Table 1]

Claims

1. The following components (A), (B), (C), and (D): (A) 0.5 to 6% by mass of a silicone film-forming agent, (B) 0.1 to 10 mass% of polysilicone-15, (C) 0.1 to 4 mass% of an ester oil other than component (B) that is liquid or pasty at 25°C, (D) Nonionic surfactant 0.1 to 2% by mass Contains An emulsion-type cosmetic preparation, wherein the mass ratio (A) / ((B)+(C)) of component (A) to the total amount of components (B) and (C) is 0.25 or more and 2 or less.

2. 2. The emulsion-type cosmetic according to claim 1, wherein component (A) contains at least trimethylsiloxysilicate.

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