Oil-in-water-type emulsion composition

Abstract

To provide an oil-in-water-type emulsion composition which allows easy spreading during application, can be applied without slipping, adheres firmly to the skin, and prevents white appearance.SOLUTION: An oil-in-water-type emulsion composition comprises the following components (A), (B), (C), (D), and (E): (A) a cationically modified clay mineral substituted with a quaternary ammonium ion, (B) a polyether-modified silicone in an amount of 0.1 to 10 mass%, (C) a sorbitan fatty acid ester, (D) a volatile hydrocarbon oil, and (E) a silicone-free coloring pigment treated with an amino acid, wherein the mass ratio (B) / (C) of component (B) to component (C) is from 1 to 300.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a water-in-oil emulsion composition. [Background technology]

[0002] Conventionally, water-in-oil emulsion cosmetics that spread well when applied and provide excellent covering power have been investigated. For example, Patent Document 1 describes that a water-in-oil emulsion cosmetic containing a polar oil, a hydrocarbon oil, a polyoxyalkylene alkyl-co-modified organopolysiloxane, and a powder that has been surface-treated with an N-acylamino acid and a methylpolysiloxane has a smooth feel when used, spreads easily, and has excellent dispersion stability of the powder. Patent Document 2 describes that a water-in-oil emulsion composition containing a cation-modified clay mineral substituted with a quaternary ammonium ion, a liquid phenyl-modified silicone, a sorbitan fatty acid ester, and a polyether-modified silicone is excellent in spreadability upon application, adhesion to the skin, and covering power. Patent Document 3 describes a water-in-oil emulsion cosmetic that contains a hydrophobically treated color pigment, a volatile oil, a cationically modified clay mineral substituted with a quaternary ammonium ion, and a spherical organic powder, which blends well with the skin during application, does not spread heavy, and has a non-sticky feel when used. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-108952 A [Patent Document 2] JP 2022-185577 A [Patent Document 3] JP 2019-73460 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors have discovered that in a water-in-oil emulsion cosmetic that contains a cationically modified clay mineral substituted with a quaternary ammonium ion, a nonionic surfactant, and a volatile silicone oil, when a powder that has been compositely treated with an amino acid and silicone is used, there is an issue that a white cast occurs after application. [Means for solving the problem]

[0005] The present inventors have discovered that by using a combination of a cation-modified clay mineral substituted with a quaternary ammonium ion, a polyether-modified silicone, a sorbitan fatty acid ester, a volatile hydrocarbon oil, and a silicone-free amino acid-treated color pigment, with the polyether-modified silicone and the sorbitan fatty acid ester in a specific ratio, it is possible to obtain a water-in-oil emulsion composition that is easy to spread during application, can be applied without slipping, adheres to the skin, and is suppressed from leaving a white cast.

[0006] The present invention comprises the following components (A), (B), (C), (D) and (E): (A) Cation-modified clay minerals substituted with quaternary ammonium ions; (B) 0.1 to 10 mass% of polyether-modified silicone, (C) sorbitan fatty acid ester, (D) volatile hydrocarbon oils; (E) Silicone-free, amino acid-treated color pigments and the mass ratio (B) / (C) of component (B) to component (C) is 1 to 300. Effect of the Invention

[0007] The water-in-oil emulsion composition of the present invention is easy to spread during application, can be applied without slipping, adheres to the skin, and prevents white cast. It also has excellent fit to the skin and allows for a beautiful finish in a short time. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The cationically modified clay mineral of component (A) used in the present invention is substituted with a quaternary ammonium ion, and can be used without any limitation as long as it is one used in ordinary cosmetics. For example, cationically modified clay minerals obtained by substituting layered clay minerals such as bentonite, laponite, hectorite, montmorillonite, and magnesium aluminum silicate with a quaternary ammonium salt type cationic surfactant are preferred. Here, the quaternary ammonium salt type cationic surfactant is represented by the following formula (1):

[0009] [ka]

[0010] (In the formula, R 1 represents an alkyl group having 10 to 22 carbon atoms or a benzyl group, R 2 represents a methyl group or an alkyl group having 10 to 22 carbon atoms; R 3 and R 4 represents an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms, and X represents a halogen atom or a methyl sulfate residue. It is expressed as follows.

[0011] Specifically, dodecyl trimethyl ammonium chloride, myristyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, myristyl dimethyl ethyl ammonium chloride, cetyl dimethyl ethyl ammonium chloride, stearyl dimethyl ethyl ammonium chloride, behenyl dimethyl ethyl ammonium chloride, myristyl diethyl methyl ammonium chloride, cetyl diethyl methyl ammonium chloride, stearyl diethyl methyl ammonium chloride, behenyl diethyl methyl ammonium chloride, Examples of the above-mentioned compounds include benzyl dimethyl myristyl ammonium chloride, benzyl dimethyl cetyl ammonium chloride, benzyl dimethyl stearyl ammonium chloride, benzyl dimethyl behenyl ammonium chloride, benzyl methyl ethyl cetyl ammonium chloride, benzyl methyl ethyl stearyl ammonium chloride, distearyl dimethyl ammonium chloride, dibehenyl dihydroxyethyl ammonium chloride, and compounds in which the chloride of each of the above-mentioned compounds is replaced with a bromide compound, and further examples thereof include dipalmityl propyl ethyl ammonium methyl sulfate. Among these, it is preferable to contain one or more selected from benzyl dimethylstearyl ammonium chloride and dimethyl distearyl ammonium chloride, and dimethyl distearyl ammonium chloride is more preferable.

[0012] The cationic modified clay mineral obtained by substituting the layered clay mineral with a quaternary ammonium salt type cationic surfactant preferably contains one or more selected from dimethyl distearyl ammonium hectorite, dimethyl distearyl ammonium bentonite, and benzyl dimethyl stearyl ammonium hectorite, more preferably contains one or more selected from dimethyl distearyl ammonium hectorite and benzyl dimethyl stearyl ammonium hectorite, and even more preferably contains dimethyl distearyl ammonium hectorite. In addition, examples of commercially available products include Benton 38, Benton 38VCG, and Benton 27 (all manufactured by Elementis Japan Co., Ltd.).

[0013] The organically modified clay mineral can also be used as a dispersion diluted with a solvent, because it improves workability and has an excellent effect of thickening oil. Specifically, it is preferable to use a premix gel in which an organic modified clay mineral is dispersed in a solvent in advance. The solvent is not limited as long as it can be thickened by an organic modified clay mineral, but from the viewpoint of the thickening effect of oil, it is preferable to include one or more selected from octyl dodecanol, mineral oil, volatile silicone oil, tri(caprylic acid / capric acid) glyceryl, and alkyl benzoate (C12-15), and more preferably to include one or more selected from tri(caprylic acid / capric acid) glyceryl, and alkyl benzoate (C12-15). The content of the organically modified clay mineral in the premix gel is preferably 5 to 25 mass%, more preferably 10 to 20 mass%, and even more preferably 10 to 18 mass%, from the viewpoints of improving workability, thickening effect of oil, and suppressing oil separation from the thickened oily gel itself. As the premix gel, commercially available products such as Bentone Gel EUGV, which contains 10 mass% cation-modified clay minerals, Bentone Gel MIOV, Bentone Gel VS-5 PCV, which contains 18 mass% cation-modified clay minerals, Bentone Gel PTM, which contains 15 mass% (all manufactured by Elementis Japan), and BENTONE GEL GTCC V and BENTONE GEL TN V, which contain 12.5 mass% cation-modified clay minerals (all manufactured by Elementis Specialties), can be used.

[0014] One or more kinds of component (A) can be used, and the content is preferably 0.01% by mass or more in the total composition, more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less, from the viewpoint of improving spread during application, adhesion to the skin, and covering power of the finish. The content of component (A) is preferably 0.01 to 5% by mass in the total composition, more preferably 0.1 to 4% by mass, and even more preferably 0.3 to 3% by mass.

[0015] The polyether-modified silicone of component (B) is one that is used in ordinary cosmetics, and examples thereof include dimethylpolysiloxanes having polyoxyethylene or polyoxypropylene groups, and dimethylpolysiloxanes to which polyethylene glycol has been added, which are used in ordinary cosmetics. The dimethylpolysiloxane may be partially fluorine-modified. As the polyether-modified silicone, from the viewpoints of excellent spreadability during application and ability to be applied without slipping, dimethylpolysiloxane having a polyoxyethylene group or a polyoxypropylene group is preferred, and dimethylpolysiloxane having at least a polyoxyethylene group is more preferred. It is preferable that the polyether-modified silicone does not include a crosslinked type. From the viewpoints of excellent viscosity stability, excellent spreadability during application, and ability to be applied without slipping, such polyether-modified silicones preferably have an HLB of 1 or more, more preferably 3 or more, and preferably 12 or less, more preferably 10 or less, even more preferably 8 or less, and even more preferably 6 or less.

[0016] In the present invention, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and is calculated by Griffin's formula. When a surfactant is composed of two or more nonionic surfactants, the HLB of the mixed surfactant is calculated as follows. The HLB of the mixed surfactant is the phase arithmetic average of the HLB values ​​of each nonionic surfactant based on their blending ratio. Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of nonionic surfactant X. Wx denotes the mass (g) of the nonionic surfactant X having a value of HLBx.

[0017] Examples of polyether-modified silicones include cetyl PEG / PPG-10 / 1 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG-12 dimethicone, PEG10-dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, etc. Among these, from the viewpoint of excellent spreadability during application and application without slipping, it is preferable to contain one or more types selected from cetyl PEG / PPG-10 / 1 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG-12 dimethicone, and PEG10-dimethicone, more preferably to contain one or more types selected from cetyl PEG / PPG-10 / 1 dimethicone, PEG / PPG-19 / 19 dimethicone, and PEG-12 dimethicone, and even more preferably to contain cetyl PEG / PPG-10 / 1 dimethicone.

[0018] One or more kinds of component (B) can be used, and the content is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, and 10% by mass or less, preferably 5% by mass or less, more preferably 3% by mass or less, in terms of excellent spreadability during application, application without slipping, improved adhesion to the skin, and suppression of white cast, based on the total composition. The content of component (B) is 0.1 to 10% by mass, preferably 0.5 to 5% by mass, more preferably 1 to 3% by mass, based on the total composition.

[0019] The component (C) used in the present invention is a sorbitan fatty acid ester. From the viewpoints of viscosity stability, excellent spreadability during application, and ability to be applied without slipping, the sorbitan fatty acid ester preferably has an HLB of 1 or more, more preferably 2 or more, and even more preferably 3 or more, and preferably 10 or less, more preferably 7 or less, and even more preferably 6 or less. Here, the HLB is calculated in the same manner as for the component (B) above.

[0020] Examples of sorbitan fatty acid esters include sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, sorbitan sesquioleate, etc., and from the viewpoint of excellent spreadability during application and application without slipping, it is preferable to contain one or more types selected from sorbitan monoisostearate, sorbitan monooleate, and sorbitan sesquistearate, more preferably one or more types selected from sorbitan monoisostearate and sorbitan sesquistearate, and even more preferably sorbitan monoisostearate. Examples of sorbitan fatty acid esters that can be used as component (C) include commercially available products such as Span 120 (HLB 4.7) (manufactured by Croda) for sorbitan monoisostearate, NIKKOL SS-15V (HLB 4.2) for sorbitan sesquistearate, and NIKKOL SO-10V (HLB 4.3) for sorbitan monooleate (all manufactured by Nikko Chemicals).

[0021] One or more of the components (C) can be used, and the content is preferably 0.0003% by mass or more in the total composition, more preferably 0.0033% by mass or more, even more preferably 0.016% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less, from the viewpoints of excellent spreadability during application, application without slipping, improved adhesion to the skin, and suppression of white cast. The content of the component (C) is preferably 0.0003 to 10% by mass in the total composition, more preferably 0.0033 to 5% by mass, and even more preferably 0.016 to 3% by mass.

[0022] In the present invention, the mass ratio (B) / (C) of component (B) to component (C) is preferably 1 or more, and is preferably 300 or less, more preferably 150 or less, and even more preferably 60 or less, from the viewpoints of excellent spreadability during application, application without slipping, improved adhesion to the skin, suppression of white cast, excellent fit to the skin, and enabling a beautiful finish in a short time. In addition, the mass ratio (B) / (C) of component (B) to component (C) is preferably 1 to 300, more preferably 1 to 150, and even more preferably 1 to 60.

[0023] Component (D) is a volatile hydrocarbon oil. Volatile means that it has a flash point of 35 to 87°C. Examples of volatile hydrocarbon oils include paraffinic hydrocarbon oils such as n-decane, n-undecane, and n-dodecane; isoparaffinic hydrocarbon oils such as isodecane, isododecane, and hydrogenated polyisobutene; and cyclic paraffinic hydrocarbon oils such as cyclodecane and cyclododecane. Among these, hydrocarbon oils having 8 to 16 carbon atoms are preferred, hydrocarbon oils having 10 to 16 carbon atoms are more preferred, and hydrocarbon oils having 12 carbon atoms are even more preferred. Among these, isoparaffinic hydrocarbon oils are preferred, and isododecane and hydrogenated polyisobutene having 12 carbon atoms are more preferred.

[0024] One or more kinds of component (D) can be used, and the content is preferably 1% by mass or more, more preferably 5% by mass or more, and even more preferably 10% by mass or more, preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less, in terms of excellent spreadability during application, application without slipping, and improved adhesion to the skin. The content of component (D) is preferably 1 to 50% by mass, more preferably 5 to 40% by mass, and even more preferably 10 to 30% by mass, in the total composition.

[0025] Component (E) is a silicone-free, amino acid treated color pigment. The color pigments are those used in ordinary cosmetics, such as metal oxides such as titanium oxide, zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red ocher, Prussian blue, ultramarine, chromium oxide, and chromium hydroxide, metal complexes such as manganese violet and cobalt titanate, and 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. 220, Red No. 226, Red No. 227, Red No. 229, Red No. 230, Red No. 231, Red No. 232, Red No. 233, Red No. 234, Red No. 235, Red No. 236, Red No. 237, Red No. 238, Red No. 239, Red No. 240, Red No. 241, Red No. 242, Red No. 243, Red No. 244, Red No. 245, Red No. 246, Red No. 247, Red No. 248, Red No. 249 ...9, Red No. 240, Red No. 241, Red No. 242, Red No. 243, Red No. 244, Red No. 245, Red No. 246, Red No. 247, Red No Examples of the pigments include synthetic organic pigments, organic dyes and their lake pigments, such as Color 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 404; and natural organic dyes, such as β-carotene, caramel, and paprika dye. Examples of the pigments include composites of these color pigments and mixed pigments in which these color pigments are diluted with extender pigments such as barium sulfate and talc. As the color pigment, from the viewpoint of improving the covering power of the finish and the clean makeup finish feeling of the entire face, it is preferable that the color pigment contains a metal oxide, more preferably contains one or more types selected from titanium oxide, zinc oxide, yellow iron oxide, black iron oxide, and red iron oxide, and further preferably contains one or more types selected from titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide.

[0026] The color pigment of component (E) is one that has been treated with an amino acid, including one that has been treated with an amino acid or an acylated amino acid, with the acylated amino acid being preferred. Examples of amino acids for treating color pigments include proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, glutamic acid, and the like, and salts thereof are also included. The fatty acid constituting the acyl group of the acylated amino acid is preferably a fatty acid having 1 to 23 carbon atoms, more preferably a fatty acid having 8 to 20 carbon atoms, and among these, stearoyl glutamic acid, cocoyl glutamic acid, lauroyl aspartic acid, dilauroyl glutamic acid lysine, and lauroyl lysine are even more preferred. Examples of salts thereof include Na, Ca, Al, Mg, Zn, Zr, and Ti salts. Specifically, from the viewpoints of improving adhesion to the skin, suppressing white cast, having excellent fit to the skin, and being able to achieve a beautiful finish in a short amount of time, those treated with disodium stearoyl glutamate, sodium lauroyl aspartate, or disodium cocoyl glutamate are preferred, and those treated with sodium lauroyl aspartate or disodium cocoyl glutamate are more preferred. The amino acid treatment can be carried out according to a conventional method. The color pigment of component (E) may be subjected to a hydrophobic treatment in combination with a compound other than an amino acid, but does not include a silicone treatment from the viewpoint of suppressing powderiness and white cast.

[0027] The color pigment of component (E) can be used alone or in combination of two or more, and the content is preferably 0.1% by mass or more in the total composition, more preferably 1% by mass or more, even more preferably 5% by mass or more, preferably 30% by mass or less, more preferably 25% by mass or less, and even more preferably 20% by mass or less, from the viewpoints of improving the covering power of the finished product, adhesion to the skin, suppressing white cast, excellent fit to the skin, and enabling a beautiful finish in a short time. The content of component (E) is preferably 0.1 to 30% by mass in the total composition, more preferably 1 to 25% by mass, and even more preferably 5 to 20% by mass.

[0028] In the present invention, the mass ratio (E) / (C) of component (E) to component (C) is preferably 2 or more, more preferably 3 or more, and even more preferably 5 or more, and is preferably 1000 or less, more preferably 400 or less, and even more preferably 250 or less, from the viewpoints of excellent spreadability during application, application without slipping, improved adhesion to the skin, suppression of white cast, excellent fit to the skin, and ability to achieve a beautiful finish in a short time. In addition, the mass ratio (E) / (C) of component (E) to component (C) is preferably 2 to 1000, more preferably 3 to 400, and even more preferably 5 to 250.

[0029] In the present invention, the mass ratio (D) / (E) of component (D) to component (E) is preferably 1.2 or more, more preferably 1.4 or more, even more preferably 1.6 or more, and is preferably 10 or less, more preferably 7 or less, and even more preferably 3 or less, from the viewpoints of improving adhesion to the skin, suppressing white cast, providing excellent fit to the skin, and enabling a beautiful finish in a short time. Moreover, the mass ratio (D) / (E) of component (D) to component (E) is preferably 1.2 to 10, more preferably 1.4 to 7, and even more preferably 1.6 to 3.

[0030] The water-in-oil emulsion composition of the present invention may further contain a powder other than the component (E). As the powder other than component (E), those usually used in cosmetics, such as extender pigments and luster pigments, can be used.

[0031] Examples of the extender pigments include those used in ordinary cosmetics, such as inorganic extender pigments such as magnesium silicate, aluminum silicate, talc, sericite, mica, synthetic fluorophlogopite, glass powder, phlogopite, kaolin, clay, bentonite, hectorite, zeolite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, and magnesium carbonate, as well as composite powders of these.

[0032] The luster pigments may be those used in ordinary cosmetics, such as plate-like powders of mica, synthetic phlogopite, glass, silica, alumina, etc., the surface of which is coated with colorants such as titanium oxide, iron oxide, silicon oxide, Prussian blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, organic pigments, etc., and film rolls cut into any shape such as polyethylene terephthalate-polymethyl methacrylate laminated powder, polyethylene terephthalate-aluminum vapor-deposited powder, and polyethylene terephthalate-gold vapor-deposited laminated powder may also be used. Further, organic powders such as polyethylene powder, polypropylene powder, polymethyl methacrylate powder, nylon powder, polytetrafluoroethylene powder, silicone powder, silicone rubber powder, silk powder, urethane powder, cellulose powder, starch powder, and polyethylene fluoride; inorganic powders such as silica, magnesium carbonate, and calcium carbonate; acylated lysine powders such as lauroyl lysine; and metal soap powders which are higher fatty acid metal salts can be used.

[0033] Powders other than component (E) may be used as they are, or may be subjected to a hydrophobic treatment by a conventional method before use. Examples of the hydrophobic treatment include surface treatments such as fluorine compound treatment, 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, and urethane resin treatment. As the hydrophobic treatment of the extender pigment, silicone treatment, alkylsilane treatment, metal soap treatment, amino acid treatment, acylated amino acid treatment, and organic titanate treatment are preferred, and among these, treatment with an acylated amino acid is more preferred. From the viewpoint of suppressing powdery feeling and white cast, treatment with an acylated amino acid that does not contain silicone is even more preferred, and at least talc that does not contain silicone and has been treated with an acylated amino acid is even more preferred.

[0034] The powder other than component (E) may be used alone or in combination of two or more, and the content is preferably 0.1 mass% or more in the total composition, more preferably 0.2 mass% or more, and even more preferably 0.3 mass% or more, and is preferably 20 mass% or less, more preferably 10 mass% or less, and even more preferably 5 mass% or less, from the viewpoint of excellent spreadability during application. The content of the powder other than component (E) is preferably 0.1 to 20 mass% in the total composition, more preferably 0.2 to 10 mass%, and even more preferably 0.3 to 5 mass%.

[0035] The water-in-oil emulsion composition of the present invention may further contain a non-volatile oil. Non-volatile means that it has no flash point or has a flash point of 89°C or higher. The non-volatile oil is preferably liquid at 25° C. Liquid at 25° C. means that the oil has fluidity at 25° C., and includes cream-like and paste-like oils.

[0036] The non-volatile oil may be any oil that is commonly used in cosmetics, and examples thereof include hydrocarbon oils, ester oils, ether oils, silicone oils, and higher alcohols. Examples of the hydrocarbon oil include linear or branched hydrocarbon oils such as liquid paraffin, liquid isoparaffin, hydrogenated polyisobutene, squalane, and squalene.

[0037] Ester oils include monoester oils, diester oils, triester oils and tetraester oils. Examples of monoester oils include monoesters of aliphatic or aromatic monocarboxylic or dicarboxylic acids having 2 to 24 carbon atoms. Specific examples include cetyl 2-ethylhexanoate, cetyl octanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, isopropyl palmitate, octyl palmitate, palmitate, and ethylhexyl hexanoate. Examples of the lactose-soluble oleate include 2-hexyldecyl butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, octyldodecyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, alkyl benzoate (C12 to C15), and octyldodecyl 12-stearoyl stearate.

[0038] Examples of diester oils include diesters of dicarboxylic acids having 3 to 18 carbon atoms and difatty acid esters of polyhydric alcohols. Specific examples include propylene glycol dicaprylate, neopentyl glycol dicaprate, glycol distearate, propylene glycol diisostearate, glyceryl diisostearate, glyceryl monomyristate monoisostearate, glycerin di-2-heptylundecanoate, di-2-ethylhexyl succinate, diisopropyl sebacate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, diisobutyl adipate, di-2-heptylundecyl adipate, and di-2-ethylhexyl sebacate.

[0039] Triester oils include tri-fatty acid esters of trivalent or higher polyhydric alcohols, and specific examples include glyceryl trimyristate, glyceryl triisopalmitate, glyceryl tri-2-heptylundecanoate, trimethylolpropane triethylhexanoate, trimethylolpropane trioctanoate, tri(caprylic / capric)glyceryl, trioleate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, olive oil, and jojoba oil.

[0040] Examples of tetraester oils include tetra fatty acid esters of polyhydric alcohols having 4 or more valences, and specific examples thereof include pentaerythritol tetra(behenic acid / benzoic acid / ethylhexanoic acid), pentaerythritol tetraethylhexanoate, pentaerythritol tetraoctanoate, and pentaerythritol tetra-2-ethylhexanoate.

[0041] The ether oils include dialkyl ethers, specifically, dihexyl ether, dicaprylyl ether, cetyl-1,3-dimethylbutyl ether, and the like.

[0042] Examples of silicone oils include crosslinked methylpolysiloxane, network methylpolysiloxane, dimethylpolysiloxane, methyltrimethicone, dimethylcyclopolysiloxane, methylphenylpolysiloxanes such as diphenylsiloxyphenyltrimethicone, and higher alcohol-modified organopolysiloxanes.

[0043] Examples of higher alcohols include those having a straight or branched alkyl or alkenyl group having 10 to 24 carbon atoms, such as lauryl alcohol, myristyl alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyldodecanol, and oleyl alcohol.

[0044] The non-volatile oil may be used alone or in combination of two or more, and the content is preferably 1% by mass or more, more preferably 3% by mass or more, even more preferably 6% by mass or more, preferably 40% by mass or less, more preferably 25% by mass or less, and even more preferably 16% by mass or less in the total composition from the viewpoint of excellent spreadability during application. The content of the non-volatile oil is preferably 1 to 40% by mass, more preferably 3 to 25% by mass, and even more preferably 6 to 16% by mass in the total composition.

[0045] In the water-in-oil emulsion composition of the present invention, the content of ethanol is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 1% by mass or more, preferably 10% by mass or less, more preferably 7% by mass or less, and even more preferably 5% by mass or less, in terms of excellent spreadability during application. The content of non-volatile oil is preferably 0.1 to 10% by mass, more preferably 0.3 to 7% by mass, and even more preferably 1 to 5% by mass, in the total composition.

[0046] In the present invention, from the viewpoint of excellent spreadability during application, the water content is preferably 5% by mass or more, more preferably 8% by mass or more, and even more preferably 10% by mass or more, and is preferably 55% by mass or less, more preferably 45% by mass or less, and even more preferably 35% by mass or less, based on the total composition. The water content is preferably 5 to 55% by mass, more preferably 8 to 45% by mass, and even more preferably 10 to 35% by mass.

[0047] The water-in-oil emulsion composition of the present invention may contain, in addition to the above-mentioned components, components that are usually used in cosmetics, such as oil components other than those mentioned above, surfactants other than those mentioned above, powders other than those mentioned above, water-soluble polymers, antioxidants, fragrances, preservatives, thickeners, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, germicides, skin activators, moisturizers, and refreshing agents.

[0048] The water-in-oil emulsion composition of the present invention can be produced according to a conventional method. The water-in-oil emulsion composition of the present invention can be in the form of a liquid, emulsion, paste, cream, gel, or the like. The water-in-oil emulsion composition of the present invention is preferably used as a water-in-oil emulsion cosmetic, more preferably as a water-in-oil emulsion cosmetic for skin, even more preferably as an ultraviolet ray protective cosmetic or a makeup cosmetic, and even more preferably as a makeup cosmetic. The water-in-oil emulsion composition of the present invention can be used, for example, as makeup cosmetics such as a makeup base, foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, and lipstick; UV protection cosmetics such as a sunscreen lotion and a sunscreen cream; and skin care cosmetics such as a skin care lotion, a skin care cream, a BB cream, and a beauty serum. EXAMPLES

[0049] Examples 1 to 11 and Comparative Examples 1 to 3 A water-in-oil emulsion cosmetic (liquid foundation) with the composition shown in Table 1 was manufactured and evaluated for a finish without a white cast, adhesion after application, ease of spreading during application, feeling of the foundation fitting the skin without being slippery at the end of application, and ability to quickly apply the foundation in a short time. The results are also shown in Table 1.

[0050] (Manufacturing method) A powder phase containing component (E) was added to an oil phase containing components (A), (B), (C), and (D) and dispersed therein, and then the aqueous phase components were added and stirred with a homomixer to obtain a water-in-oil emulsion cosmetic.

[0051] (Evaluation method) Five expert evaluators conducted a sensory evaluation of each water-in-oil emulsion cosmetic product using the following criteria: no white cast on the finish, adhesion after application, ease of spreading during application, feeling of the foundation fitting the skin without feeling sticky at the end of application, and ability to apply the foundation quickly and in a short time. The results are shown as the cumulative scores of the five experts.

[0052] (1) No white cast finish: 5;The makeup does not look white at all on the skin. 4;The makeup doesn't look too white on the skin. 3; The makeup on the skin looks a bit off-white. 2; Makeup looks pale and unnatural. 1; Makeup on the skin looks very white and unnatural.

[0053] (2) Adhesion after application: 5. It doesn't slip at all and adheres well to the skin. 4. It does not slip on the skin and adheres well to the skin. 3: It slides a little on the skin and doesn't feel very tight. 2; It slides on top and doesn't feel like it's sticking well. 1: It slides quite a bit and doesn't feel like it adheres to the skin at all.

[0054] (3) Ease of spreading during application: 5;Very easy to stretch. 4;Easy to stretch. 3;Somewhat easy to stretch. 2;It's not very easy to stretch. 1;Difficult to stretch.

[0055] (4) The feeling that the foundation fits well on the skin without slipping after application: 5; Fits very nicely on the skin. 4;Fits against the skin. 3;Fits slightly against the skin. 2;It doesn't fit the skin very well. 1;Doesn't fit well on the skin.

[0056] (5) Foundation can be applied quickly and in a short time: 5;Can produce a beautiful finish in a very short time. 4;It can be completed in a short time. 3;It takes some time to finish. 2;It takes a long time to finish. 1;It takes a very long time to complete.

[0057]

Table 1

Claims

1. The following components (A), (B), (C), (D) and (E): (A) a cationically modified clay mineral substituted with a quaternary ammonium ion; (B) polyether-modified silicone 0.1 to 10 mass% (C) sorbitan fatty acid ester, (D) volatile hydrocarbon oils; (E) Silicone-free, amino acid-treated color pigments and the mass ratio (B) / (C) of component (B) to component (C) is 1 to 300.

2. 2. The water-in-oil emulsion composition according to claim 1, wherein the content of component (A) is 0.01 to 5 mass%, the content of component (C) is 0.0003 to 10 mass%, the content of component (D) is 1 to 50 mass%, and the content of component (E) is 0.1 to 30 mass%.

3. 3. The water-in-oil emulsion composition according to claim 1 or 2, wherein component (E) is a silicone-free, acylated amino acid treated color pigment.

4. 4. The water-in-oil emulsion composition according to any one of claims 1 to 3, wherein the mass ratio (E) / (C) of component (E) to component (C) is 2 to 1,000.

5. The water-in-oil emulsion composition according to any one of claims 1 to 4, which is a makeup cosmetic.

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