Emulsion composition

Abstract

To provide an emulsion composition that does not cause slipperiness on skin during application, shows intimate contact with the skin, can sufficiently cover pores, and has reduced stickiness in the skin after application.SOLUTION: An emulsion composition contains following components (A), (B), (C), (D) and (E): (A) sorbitan fatty acid ester, (B) a coloring pigment treated with a surface preparation agent including an alkyl group having three or more carbon atoms, (C) a nonvolatile oil that is liquid at 25°C, (D) carbonate, (E) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an emulsion composition. [Background technology]

[0002] In makeup cosmetics such as foundation, the cosmetics need to be firmly attached to the skin in order to cover pores. For example, Patent Document 1 describes a composite powder consisting of silicone rubber particles whose surfaces are coated with silicone resin, and a water-in-oil emulsion cosmetic containing a non-volatile oil agent other than silicone oil, which makes the skin look brighter, has excellent spreadability and adhesion, and is effective in hiding pores. On the other hand, sunscreen cosmetics containing carbonates are known. For example, Patent Document 2 describes a sunscreen cosmetic composition containing an inorganic UV scattering agent made of a hydrophobic fine metal oxide particle, tubular basic magnesium carbonate, and oil, and Patent Document 3 describes a cosmetic composition having UV-A and / or UV-B protection, which contains at least one inorganic UV filter and surface-reacted calcium carbonate. In these cosmetic compositions, the ultraviolet protection effect is improved by using carbonates. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-172872 A [Patent Document 2] JP 2011-236182 A [Patent Document 3] Special Publication No. 2020-506953 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional emulsion cosmetics tend to slip on the skin when applied, making it difficult to feel that the cosmetics are fully attached to the skin, and also have poor adhesion to pores, making it impossible to cover pores sufficiently.Another issue is that the cosmetics leave a sticky feeling on the skin after application. [Means for solving the problem]

[0005] The present inventors have discovered that an emulsion composition which solves the above-mentioned problems can be obtained by using a combination of a sorbitan fatty acid ester, a specific surface-treated color pigment, a non-volatile oil which is liquid at 25°C, and a carbonate.

[0006] The present invention comprises the following components (A), (B), (C), (D) and (E): (A) sorbitan fatty acid ester, (B) a color pigment that has been treated with a surface treatment agent containing an alkyl group having 3 or more carbon atoms; (C) a non-volatile oil that is liquid at 25°C; (D) carbonate, (E)Water The present invention relates to an emulsion composition comprising the above-mentioned compound. Effect of the Invention

[0007] The emulsion composition of the present invention reduces the slippery feeling when applied, improves the adhesion to the skin after application, and can sufficiently cover pores, while reducing the sticky feeling on the skin after application. The term "slippery feeling" refers to the feeling that when the emulsion cosmetic is applied to the face using the fingertips, it spreads over the skin indefinitely, as if a liquid oil were being spread, and there is no real feeling that the emulsion cosmetic is spreading while adhering to the skin. The term "adherence" refers to the fact that the emulsion composition on the skin after application follows the movement of the skin even when the facial skin is moved, such as by changing facial expressions, but does not come off from the surface of the skin, and that the emulsion composition is firmly attached without being partially gathered due to wrinkles or fine wrinkles. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The component (A) used in the present invention is a sorbitan fatty acid ester. The sorbitan fatty acid ester preferably has an HLB of 1 to 10, more preferably 2 to 7, and even more preferably 3 to 6, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition. Here, 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.

[0009] Examples of sorbitan fatty acid esters include sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and sorbitan sesquioleate. From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition, sorbitan monoisostearate, sorbitan monooleate, and sorbitan sesquistearate are preferred, sorbitan monoisostearate and sorbitan sesquistearate are more preferred, and sorbitan monoisostearate is even more preferred. As the sorbitan fatty acid ester of component (A), commercially available products can be used, such as Span 120 (HLB 4.7) (manufactured by Croda) as sorbitan monoisostearate, NIKKOL SS-15V (HLB 4.2) as sorbitan sesquistearate, and NIKKOL SO-10V (HLB 4.3) as sorbitan monooleate (all manufactured by Nikko Chemicals).

[0010] From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin after application, and obtaining a stable emulsion composition, the content of component (A) is preferably 0.05 to 5 mass % of the total composition, more preferably 0.08 to 3 mass %, and even more preferably 0.2 to 2 mass %.

[0011] Component (B) is a color pigment that has been treated with a surface treatment agent that contains an alkyl group having 3 or more carbon atoms. The color pigments include 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. Examples of the color pigments used in the composite pigments include composite pigments in which the color pigments and pearl pigments are combined. Examples of the pearl pigments used in the composite pigments include natural or synthetic inorganic powders such as mica, phlogopite, sericite, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, and plate-like alumina powder. Specific examples of the 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. Among these, metal oxides are preferred, and it is more preferred to include at least one or more selected from titanium oxide, zinc oxide, yellow iron oxide, black iron oxide, and red iron oxide, and it is even more preferred to include at least one or more selected from titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide.

[0012] Examples of the treatment with a surface treatment agent containing an alkyl group having 3 or more carbon atoms include surface treatments such as alkylalkoxysilane treatment, metal soap treatment, acylated amino acid treatment, lecithin treatment, and organic titanate treatment. The alkylalkoxysilane treatment may be one having a linear or branched alkyl group having 6 to 20 carbon atoms. In the alkylalkoxysilane treatment, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, the number of carbon atoms in the alkyl group constituting the alkylalkoxysilane is preferably 6 to 18, more preferably 8 to 14, even more preferably 8 to 12, and even more preferably 8. In addition, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, the alkyl group constituting the alkylalkoxysilane is preferably linear. Examples of the alkylalkoxysilane treatment include triethoxycaprylylsilane treatment and trimethoxycaprylylsilane treatment. From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, triethoxycaprylylsilane treatment is preferred.

[0013] In the acylated amino acid treatment, the amino acids constituting the acylated amino acid include proline, hydroxyproline, alanine, glycine, sarcosine, lysine, aspartic acid, glutamic acid, etc., and salts thereof are also included. The number of carbon atoms in the alkyl group constituting the acyl group in the acylated amino acid treatment includes linear or branched alkyl groups having 3 to 23 carbon atoms. In the acylated amino acid treatment, from the viewpoint of reducing the feeling of slipping on the skin of the emulsion composition when applied and improving the skin adhesion after application, the amino acid constituting the acylated amino acid is preferably at least one or more selected from lysine, aspartic acid, and glutamic acid, more preferably at least one or more selected from aspartic acid and glutamic acid, and even more preferably glutamic acid. In addition, from the viewpoint of reducing the feeling of slipping on the skin of the emulsion composition when applied and improving the skin adhesion after application, the number of carbon atoms of the alkyl group constituting the acyl group of the acylated amino acid is preferably 7 to 21, more preferably 11 to 17, and even more preferably 13 to 17. In addition, from the viewpoint of reducing the feeling of slipping on the skin of the emulsion composition when applied and improving the skin adhesion after application, the alkyl group constituting the acyl group of the acylated amino acid is preferably straight-chained.

[0014] Examples of the acylated amino acid treatment include stearoyl glutamic acid treatment, lauroyl aspartic acid treatment, dilauroyl glutamic acid lysine treatment, lauroyl lysine treatment, etc., and from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, at least one or more selected from stearoyl glutamic acid treatment, lauroyl aspartic acid treatment, and dilauroyl glutamic acid lysine treatment are preferred, at least one or more selected from stearoyl glutamic acid treatment and lauroyl aspartic acid treatment are more preferred, and stearoyl glutamic acid treatment is preferred. Examples of the salts include Na, Ca, Al, Mg, Zn, Zr, and Ti salts, and Na salts are preferred. In addition, the acylated amino acid treatment is preferably used in combination with a silicone treatment from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application.

[0015] The organic titanate treatment may be an alkyl titanate treatment, such as a long-chain carboxylic acid type, a pyrophosphate type, a phosphorous acid type, or an amino acid type alkyl titanate treatment. As the organic titanate treatment, a long-chain carboxylic acid type alkyl titanate treatment is preferred from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application. Examples of the long-chain carboxylic acid type alkyl titanate treatment include isopropyl triisostearoyl titanate treatment, isopropyl trioctanoyl titanate treatment, isopropyl dimethacryl isostearoyl titanate treatment, isopropyl isostearoyl diacryl titanate treatment, diisostearoyl ethylene titanate treatment, and the like. From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, at least one or more treatments selected from the isopropyl triisostearoyl titanate treatment and the isopropyl trioctanoyl titanate treatment are preferred, and the isopropyl triisostearoyl titanate treatment is more preferred. The organic titanate treatment is preferably used in combination with the acylated amino acid treatment from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application.

[0016] From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application and improving the adhesion to the skin after application, the treatment with a surface treatment agent containing an alkyl group having 3 or more carbon atoms preferably includes at least one or more treatments selected from alkylalkoxysilane treatment, metal soap treatment, acylated amino acid treatment, and organic titanate treatment, more preferably includes at least one or two or more treatments selected from alkylalkoxysilane treatment, acylated amino acid treatment, and organic titanate treatment, even more preferably includes at least one or two or more treatments selected from acylated amino acid treatment and organic titanate treatment, and even more preferably includes at least one or two or more treatments selected from disodium stearoyl glutamate treatment and isopropyl triisostearoyl titanate.

[0017] The surface treatment of the color pigment with a surface treatment agent containing an alkyl group having 3 or more carbon atoms can be carried out by a conventional method. The amount of the surface treatment agent to be used is preferably 0.1 to 20% by mass, more preferably 0.5 to 10% by mass, and even more preferably 1 to 7% by mass, based on the mass of the color pigment.

[0018] The color pigment of component (B) can be one type or two or more types, and the content is preferably 1 to 20 mass % of the total composition, more preferably 2 to 18 mass %, and even more preferably 6 to 13 mass %, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application. The content of component (B) is the mass of the color pigment after treatment with the surface treatment agent.

[0019] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is preferably 0.003 to 4, more preferably 0.006 to 2, even more preferably 0.008 to 1, and even more preferably 0.009 to 0.5, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling.

[0020] Component (C) is a non-volatile oil that is liquid at 25°C. "Liquid at 25°C" means that the viscosity at 25°C is 10,000 mPa s or less. Here, the viscosity is measured using a B-type viscometer (TVB-10M, manufactured by Toki Sangyo Co., Ltd.), rotor No. 4, 60 rpm, 60 seconds. Moreover, the term "non-volatile" refers to a material whose evaporation amount at 25°C for 6 hours is less than 20%, as measured by the following method (1). Method (1): Place a 90mm diameter filter paper in a 120mm diameter glass petri dish, place 1g of sample on the filter paper, and store in a room with 65% RH (25℃). After 6 hours, measure the residue of the sample and calculate the amount of evaporation.

[0021] The non-volatile oil of component (C) may be any oil that is commonly used in cosmetics, and examples thereof include linear or branched hydrocarbon oils such as liquid paraffin, liquid isoparaffin, squalane, and squalene; monoester oils such as ethylhexyl paramethoxycinnamate, octyldodecyl myristate, isotridecyl isononanoate, and isononyl isononanoate; diester oils such as neopentyl glycol dicaprate, propylene glycol dicaprate, and diisostearyl malate; triester oils such as glyceryl tri-2-ethylhexanoate and glyceryl tri(caprylic acid / capric acid); tetraester oils such as dipentaerythrityl tetraisostearate; silicone oils such as dimethylpolysiloxane, caprylyl methicone, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and higher alcohol-modified organopolysiloxane; and fluorine oils such as fluoropolyether and perfluoroalkyl ether silicone. Among these, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application and improving the adhesion to the skin and pore covering power after application, it is preferable to contain at least one or two or more types selected from linear or branched hydrocarbon oils, monoester oils, diester oils, triester oils, tetraester oils, and silicone oils, more preferably to contain at least one or two or more types selected from linear or branched hydrocarbon oils, monoester oils, diester oils, and silicone oils, even more preferably to contain at least one or two or more types selected from branched hydrocarbon oils, monoester oils, diester oils, and silicone oils, and even more preferably to contain at least one or two or more types selected from liquid isoparaffin, ethylhexyl paramethoxycinnamate, methylphenylpolysiloxane, caprylyl methicone, and propylene glycol dicaprate.

[0022] Component (C) may be used alone or in combination with two or more kinds, and from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application and improving the adhesion to the skin and the ability to cover pores after application, the content is preferably 0.5 to 35 mass% of the total composition, more preferably 2 to 25 mass%, even more preferably 5 to 20 mass%, and even more preferably 7 to 17 mass%.

[0023] The carbonate of component (D) is preferably a bivalent metal carbonate, such as calcium carbonate, magnesium carbonate, barium carbonate, etc. Among these, from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the skin adhesion and pore covering power after application, it is preferable to include at least one or more selected from calcium carbonate and magnesium carbonate, and calcium carbonate is more preferable. In addition, from the viewpoint of reducing the sticky feeling of the skin after application, it is preferable to include at least one or more selected from calcium carbonate and magnesium carbonate, and magnesium carbonate is more preferable. Furthermore, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and pore-covering power after application, and reducing the sticky feeling, it is preferable that the emulsion composition contains a combination of calcium carbonate and magnesium carbonate. The carbonate of component (D) is used alone. When it is used as a surface treatment agent for powders or as a composite powder raw material, the carbonate does not exist alone in the composition, and therefore the effect of the present invention cannot be obtained.

[0024] The shape of the carbonate of component (D) is not limited, and may be any of spindle-like, rod-like, spherical, plate-like, needle-like, fibrous, petal-like, and the like. The shape of the carbonate of component (D) is preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, fibrous, or petal-shaped, more preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, or fibrous, and even more preferably spindle-shaped, rod-shaped, or plate-shaped, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0025] In addition, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, the volume average particle diameter of the carbonate is preferably 0.1 to 50 μm, more preferably 1 to 30 μm, and even more preferably 6 to 20 μm. Furthermore, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin during application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, the particle size (aspect ratio) of the major axis relative to the average thickness of the carbonate is preferably 1 to 100, more preferably 1.3 to 50, and even more preferably 1.6 to 30. Here, the volume average particle size is measured by a laser diffraction scattering particle size distribution analyzer (LA-920, manufactured by Horiba, Ltd.) In the present invention, the volume average particle size is the average particle size based on volume, and is defined as the 50% median size. The aspect ratio is calculated from the ratio of the volume average particle size to the average thickness of the particles, and is defined as aspect ratio=(volume average particle size / average thickness). The average particle thickness is determined by taking the number average of the thicknesses of 10 to 50 base particles observed and measured using a scanning electron microscope or a transmission electron microscope.

[0026] As the carbonate of component (D), commercially available products can be used. Examples of calcium carbonate that can be used include light calcium carbonate (manufactured by Omi Chemical Industry Co., Ltd., volume average particle size 7.5 μm, spindle shape, aspect ratio 1.9) and SCS-M5 (manufactured by Sakai Chemical Industry Co., Ltd., volume average particle size 5 μm, spherical, aspect ratio 1), and examples of magnesium carbonate include heavy magnesium carbonate (manufactured by Kyowa Chemical Industry Co., Ltd., volume average particle size 16 μm, plate shape, aspect ratio 26).

[0027] Component (D) may be used alone or in combination with two or more kinds. From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, the content is preferably 0.1 to 10 mass %, more preferably 0.5 to 8 mass %, and even more preferably 1.2 to 5 mass % of the total composition.

[0028] In the present invention, the mass ratio (B) / (D) of component (B) to component (D) is preferably 0.2 to 100, more preferably 0.5 to 70, even more preferably 0.8 to 35, and even more preferably 1 to 20, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0029] In the present invention, the content of water as component (E) is preferably 20 to 80 mass % of the total composition, more preferably 30 to 70 mass %, even more preferably 40 to 60 mass %, and even more preferably 45 to 55 mass %.

[0030] The emulsion composition of the present invention may further contain a film-forming agent, which can reduce the slippery feeling of the emulsion composition on the skin when applied and improve the adhesion to the skin after application. Such film-forming agents include those commonly used in cosmetics, such as fluorine-modified silicone resins, trimethylsiloxysilicate, acrylic silicone resins, and alkylsilsesquioxane resins.

[0031] The fluorine-modified silicone resin may be represented by the following general formula (1): R 1 g SiO (4-g) / 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 2 represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf represents a perfluoroalkyl group having 1 to 8 carbon atoms), 2 -Rf is an essential functional group, and g is an average number in the range of 1.0≦g≦1.8. 1 may be the same or different) Preferably, the compound has a structure represented by the following formula:

[0032] Such fluorine-modified silicone resins are preferably those labeled as "trifluoroalkyldimethyltrimethylsiloxysilicate" (INCI name: "Trifluoropropyldimethyl / Trimethylsiloxysilicate") in cosmetics, and commercially available products such as XS66-B8226 (50% by mass decamethylcyclopentasiloxane solution) and XS66-B8636 (50% by mass dimethylpolysiloxane (10cs) solution) (both manufactured by Momentive Performance Materials) that have been dissolved in a solvent in advance can be used.

[0033] Trimethylsiloxysilicate is a compound with a crosslinked structure based on a siloxane structure, [(CH3)3SiO 1 / 2 ] S [SiO2] T (S is 1 to 3, T is 0.5 to 8) is preferable.

[0034] As the trimethylsiloxysilicate, the cosmetic label name "trimethylsiloxysilicate" (INCI name "Trimethylsiloxysilicate") is preferred, and commercially available products such as KF-7312T (60% by mass methyltrimethicone solution), KF-7312L (50% dimethylpolysiloxane (2cs) solution), KF-7312J (50% by mass decamethylcyclopentasiloxane solution), and KF-7312K (50% by mass dimethylpolysiloxane (6cs) solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.) that have been dissolved in advance in a solvent can be used.

[0035] Examples of the acrylic silicone resin include 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 those described in JP-A Nos. 11-1530 and 2000-63225.

[0036] As the vinyl polymer having a carbosiloxane dendrimer structure in the side chain, a silicone dendrimer-acrylic copolymer is preferred, and the cosmetic label name "(Acrylates / Polytrimethylsiloxymethacrylate) Copolymer" (INCI name "Acrylates / Polytrimethylsiloxymethacrylate Copolymer") is preferred, and commercially available products such as FA4001CM (30% by mass decamethylcyclopentasiloxane solution), FA4002ID (40% by mass isododecane solution), and DOWSIL FA 4003 DM Silicone Acrylate (40% by mass dimethylpolysiloxane (2cs) solution) (all manufactured by Dow Toray) that have been dissolved in advance in a solvent can be used.

[0037] Examples of the acrylic-silicone graft copolymer include those described in JP-A-2-25411. 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 advance in a solvent can be used.

[0038] As the alkylsilsesquioxane resin, for example, those described in JP-A-4-312511 can be used. 3 SiO 1.5 A silanol group-containing organopolysilsesquioxane consisting of units (wherein R 3 represents a substituted or unsubstituted monovalent hydrocarbon group) per 100 parts by mass of (R 4 3Si) a Z (wherein, R 4represents a substituted or unsubstituted monovalent hydrocarbon group, a represents 1 or 2, and Z represents a hydrogen atom, a hydroxyl group, or a hydrolyzable group when a is 1, or represents -O-, -N(X)-, or -S- when a is 2. Here, X represents a hydrogen atom, a monovalent hydrocarbon group having 1 to 4 carbon atoms, or R 4 3Si-), and 5 to 100 parts by mass of a silicone compound represented by R 3 SiO 1.5 Unit 50-99 mol%, R 4 3SiO 0.5 Examples include silicone resins consisting of 1 to 50 mol % of units. The alkylsilsesquioxane resin is preferably one having the cosmetic labeling name "polypropylsilsesquioxane cyclopentasiloxane" (INCI name "POLYPROPYLSILSESQUIOXANECYCLOPENTASILOXANE"). Commercially available products that can be used include, for example, 670FLUID (manufactured by Dow Toray Industries, Inc.), which is polypropylsilsesquioxane, and DOWSIL MQ-1640 FLAKE RESIN (a mixture of 37% by mass polypropylsilsesquioxane and 63% by mass trimethylsiloxysilicate) (manufactured by Dow Toray Industries, Inc.), which is a mixture of polypropylsilsesquioxane and trimethylsiloxysilicate.

[0039] From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application, the film-forming agent preferably contains at least one or more selected from trimethylsiloxysilicate, acrylic silicone resin, and alkylsilsesquioxane resin, more preferably an acrylic silicone resin, and even more preferably a vinyl polymer having a carbosiloxane dendrimer structure in its side chain.

[0040] One or more types of film-forming agents can be used, and the content is preferably 0.1 to 10 mass % of the total composition, more preferably 0.5 to 7 mass %, and even more preferably 1.5 to 4 mass %, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application.

[0041] The emulsion composition of the present invention may further contain an oil agent that is solid or semi-solid at 25°C, which can reduce the slippery feeling of the emulsion composition on the skin when applied and improve the adhesion to the skin and pore-covering power after application. "Solid or semi-solid at 25°C" means that the viscosity at 25°C is greater than 10,000 mPa·s. Here, the viscosity is measured using a B-type viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.), rotor No. 4, 12 rpm, 60 seconds (however, for viscosity of 50,000 mmPa·s or more, rotor No. 4, 3 rpm, 60 seconds).

[0042] The oil agent that is solid at 25°C is not limited as long as it is one that is usually used in cosmetics, and ester wax, hydrocarbon wax, etc. can be used. Examples of oil agents that are solid at 25°C and contain ester wax include animal wax, vegetable wax, etc., and examples of oil agents that are solid at 25°C and contain hydrocarbon wax include mineral wax, synthetic wax, etc. More specifically, examples of oil agents that are solid at 25°C and contain ester wax include vegetable waxes such as shea butter, rice bran wax, carnauba wax, candelilla wax, and beeswax, and examples of oil agents that are solid at 25°C and contain hydrocarbon wax include ceresin, paraffin wax, microcrystalline wax, polyethylene wax, and polyolefin wax.

[0043] Semi-solid oils at 25°C include cholesterol derivatives such as cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl macadamia nut oil fatty acid, and N-lauroyl-L-glutamic acid di(cholesteryl, behenyl, octyldodecyl); N-lauroyl-L-glutamic acid di(phytosteryl, behenyl, 2-octyldodecyl), N-lauroyl-L-glutamic acid di(phytosteryl, 2-octyldodecyl), isostearic acid phytosteryl, oleic acid phytosteryl, dimer dilinoleic acid (phytosteryl) Phytosterol derivatives such as dipentaerythritol hexaoxystearate, dipentaerythritol rosinate, etc.; triglycerides such as caprylic / capric / myristic / stearic acid triglyceride, glyceryl trilanolinate, and glyceryl tribehenate; partially hydrogenated triglycerides such as hardened oils, lanolin, soft lanolin fatty acids, lanosterol derivatives, petrolatum, and hydrogenated castor oil dimer dilinoleate.

[0044] The oil agent which is solid or semi-solid at 25°C preferably contains at least one or more selected from vegetable waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, petrolatum, and hydrogenated castor oil dimer dilinoleate, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing the sticky feeling, It is more preferable that the composition contains at least one or more selected from vegetable waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, and petrolatum, and further preferable that the composition contains vegetable waxes, phytosterol derivatives, and triglycerides, and further preferable that the composition contains triglycerides.

[0045] One or more types of oil agents that are solid or semi-solid at 25°C can be used, and the content is preferably 0.05 to 8 mass% of the total composition, more preferably 0.06 to 5 mass%, and even more preferably 0.07 to 3 mass%, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0046] The emulsion composition of the present invention may further contain a volatile oil, which can reduce the slippery feeling of the emulsion composition on the skin when applied. Here, the volatile oil refers to an oil whose evaporation amount at 25° C. for 6 hours is 20% or more, as measured by the following method (1). Method (1): Place a 90mm diameter filter paper in a 120mm diameter glass petri dish, place 1g of sample on the filter paper, and store in a room with 65% RH (25℃). After 6 hours, measure the residue of the sample and calculate the amount of evaporation.

[0047] The volatile oil may be any oil that is commonly used in cosmetics, and examples of the oil include silicone oil, hydrocarbon oil, and ether oil. Examples of silicone oils include linear dimethylpolysiloxane and cyclic dimethylpolysiloxane. The linear dimethylpolysiloxane may be either linear or branched, and linear dimethylpolysiloxanes include dimethylpolysiloxane (1.5cs) and dimethylpolysiloxane (2cs), while branched dimethylpolysiloxanes include methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane. Examples of cyclic dimethylpolysiloxanes include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. Examples of the hydrocarbon include isododecane, isotridecane, isohexadecane, light isoparaffin, and light liquid isoparaffin. Examples of the ether oil include ethyl perfluorobutyl ether.

[0048] Of these, from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied, it is preferable to contain at least one or more types selected from silicone oils and hydrocarbon oils, more preferable to contain at least one or more types selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, isododecane, and light liquid isoparaffin, and even more preferable to contain at least one or more types selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, and light liquid isoparaffin.

[0049] One or more types of volatile oils can be used, and the content is preferably 1 to 30 mass % of the total composition, more preferably 3 to 20 mass %, and even more preferably 5 to 15 mass %, from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied.

[0050] The emulsion composition of the present invention may further contain a silicone-based surfactant, which reduces the slippery feeling of the emulsion composition on the skin when applied and improves the adhesion to the skin after application, making it possible to obtain a stable emulsion composition. As the silicone-based surfactant, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition, the HLB value of the silicone-based surfactant is preferably 1 to 8, more preferably 2 to 7, and even more preferably 3 to 6. Here, 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.

[0051] The silicone-based surfactant may be any that is commonly used in cosmetics, and examples thereof include silicone-based surfactants such as linear or branched polyether-modified silicones, such as polyoxyethylene-methylpolysiloxane copolymers and poly(oxyethylene-oxypropylene)methylpolysiloxane copolymers, alkyl-modified polyether-modified silicones, and alkyl-chain-co-modified polyether-modified silicones. As the silicone-based surfactant, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition, linear or branched-chain polyether-modified silicones and alkyl-modified polyether-modified silicones are preferred, linear or branched-chain polyether-modified silicones are more preferred, and linear polyether-modified silicones are even more preferred. One or more types of silicone-based surfactants can be used, and the content is preferably 1 to 8 mass %, more preferably 2 to 6.5 mass %, and even more preferably 3 to 5.5 mass %, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition.

[0052] In addition to the above-mentioned components, the emulsion composition of the present invention may contain components that are usually used in cosmetics, for example, extender pigments such as talc, powders other than those mentioned above, polymeric compounds, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, germicides, skin activators, moisturizers, and cooling agents.

[0053] The emulsion composition of the present invention can be produced according to a conventional method, and can be any of a water-in-oil type emulsion composition, an oil-in-water type emulsion composition, etc. Also, it can be in the form of a liquid, emulsion, paste, cream, gel, solid, etc., with the paste, cream, and solid forms being preferred.

[0054] The emulsion composition of the present invention is preferably applied as a water-in-oil emulsion cosmetic, and can be applied as makeup cosmetics such as a makeup base, foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, lipstick, etc.; ultraviolet protection cosmetics such as a sunscreen lotion, sunscreen cream, etc. It is suitable as a makeup cosmetic. EXAMPLES

[0055] Examples 1 to 11 and Comparative Example 1 Water-in-oil emulsion cosmetics having the compositions shown in Tables 1 and 2 were prepared and evaluated for the lack of slippery feeling when applied, the adhesion to the skin after application, the ability to cover pores, and the lack of stickiness on the skin after application. The results are shown in Tables 1 and 2.

[0056] (Production method) Components (A), (C) and other oily components were heated and stirred at 80°C to prepare an oil phase mixture, and a powder phase containing components (B), (D) and other powders that had been previously ground and mixed was added to the oil phase mixture and mixed using a homomixer. Then, an aqueous phase heated to 80°C was added and mixed, followed by cooling to room temperature to obtain a water-in-oil emulsion cosmetic.

[0057] (Evaluation method) (1) No slippery feeling when applied: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers and applied it to the face. They then evaluated the lack of slippery feeling during application according to the following criteria. The results were shown as the total score given by the three expert evaluators. The "slippery feeling" refers to the feeling that when a water-in-oil emulsion cosmetic is applied to the face using a fingertip or the like, it continues to spread on the skin as if a liquid oil were being spread, and there is no real feeling that the water-in-oil emulsion cosmetic is spreading while adhering to the skin. 5; There is clearly no sense of slipping upwards. 4: I feel like there is almost no slippage. 3: I don't feel like it slides around much. 2: I feel like there is a slight slippery sensation. 1: I can clearly feel a sense of slipping upwards.

[0058] (2) Skin adhesion after application: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers, applied it to their face, and then evaluated the adhesion of the product to the skin after application according to the following criteria. The results were shown as the total score given by the three expert evaluators. The term "tight adhesion" refers to the fact that the water-in-oil emulsion composition on the skin after application follows the movement of the skin and does not come off from the surface of the skin even when the facial skin is moved, for example by changing facial expressions, and that the composition adheres firmly to the skin without gathering in parts due to large or small wrinkles. 5; I can clearly feel the adhesion. 4; I feel like it adheres very well. 3; I feel a sense of closeness. 2: I don't feel like it adheres well. 1: There is clearly no sense of adhesion.

[0059] (3) Pore coverage: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic onto their fingers, applied it to the face, spread it, and then evaluated its pore-covering ability according to the following criteria. The results were shown as the total score given by the three expert evaluators. 5;I feel like my pores are clearly hidden. 4;I feel like my pores are hidden. 3;I feel like my pores are almost completely hidden. 2;I feel like my pores aren't hidden very well. 1; I feel like my pores are not clearly hidden.

[0060] (4) No stickiness on the skin after application: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers, applied it to the face, then touched the skin after application and evaluated the lack of stickiness according to the following criteria. The results are shown as the total score of the three expert evaluators. 5;There is no noticeable stickiness. 4;It feels almost non-sticky. 3;It doesn't feel too sticky. 2: It feels a little sticky. 1: There is a noticeable stickiness.

[0061] [Table 1]

[0062] [Table 2]

[0063] *1: Sorbitan monoisostearate: Croda, Span 120, *2: Polyoxyethylene-methylpolysiloxane copolymer: Shin-Etsu Chemical Co., Ltd., KF-6017, *3: 2-Ethylhexyl paramethoxycinnamate: BASF, Uvinal MC80, *4: Methylphenylpolysiloxane: Dow Toray, DOWSIL FZ-209, *5: Dimethylpolysiloxane (2cs): Shin-Etsu Chemical Co., Ltd., KF-96L-2cs, *6: Light liquid isoparaffin: NOF Corp., Pearleem 4, *7: (Acrylates / polytrimethylsiloxy methacrylate) copolymer-dimethicone mixture: Dow Toray, DOWSIL FA 4003 DM Silicone Acrylate (40% by mass dimethicone (2cs) solution), *8: Glyceryl tribehenate: Croda, Synchrowax HR-C, *9: Dimethicone-Stearoyl Glutamate Disodium Complex Treated Titanium Dioxide: SA / NAI-TR-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *10: Dimethicone / Stearoyl Glutamate Disodium Complex Treated Bengala: SA / NAI-R-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemicals Co., Ltd. *11: Dimethicone / Stearoyl Glutamate 2Na Complex Treated Yellow Iron Oxide: SA / NAI-Y-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *12: Dimethicone / Stearoyl Glutamate 2Na composite treated black iron oxide: SA / NAI-B-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *13: Dimethicone / Stearoyl Glutamate Disodium Complex Treated Talc: SA / NAI-TA-46R MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *14: Amino acid-titanate composite treated titanium dioxide: ASI treated titanium dioxide (titanium dioxide (approximately spherical, average particle size 0.2 μm) 98% by mass, coated with 1.5% by mass of isopropyl triisostearoyl titanate, 0.42% by mass of sodium lauroyl aspartate, and 0.08% by mass of zinc chloride) manufactured by Daito Kasei Kogyo Co., Ltd. *15: Amino acid-titanate composite treated red iron oxide: Daito Kasei Kogyo Co., Ltd., ASI treated red iron oxide (iron oxide (needle-shaped, average particle size (length) 0.9 μm, average width 0.08 μm) 98% by mass, coated with 1.5% by mass of isopropyl triisostearoyl titanate, 0.42% by mass of sodium lauroyl aspartate, and 0.08% by mass of zinc chloride), *16: Amino acid-titanate composite treated yellow iron oxide: ASI treated yellow iron oxide (coated in the same way as *15), manufactured by Daito Kasei Kogyo Co., Ltd. *17: Amino acid-titanate composite treated black iron oxide: ASI treated black iron oxide (coated in the same way as *15), manufactured by Daito Kasei Kogyo Co., Ltd. *18: Amino acid-titanate composite treated talc: ASI treated talc, manufactured by Daito Kasei Kogyo Co., Ltd. *19: Dimethicone-treated silica: Miyoshi Chemicals, A-SB-300 (7%), *20: Calcium carbonate: Omi Chemical Industry Co., Ltd., light calcium carbonate (volume average particle size 7.5 μm, spindle shape, aspect ratio 1.9) *21: Calcium carbonate: Sakai Chemical Industry Co., Ltd., SCS-M5, (volume average particle size 5 μm, spherical, aspect ratio 1) *22: Magnesium carbonate: Kyowa Chemical Industry Co., Ltd., heavy magnesium carbonate (volume average particle size 16 μm, plate-like, aspect ratio 26)

Claims

1. The following components (A), (B), (C), (D) and (E): (A) sorbitan fatty acid ester, (B) a color pigment treated with at least one or more surface treatment agents selected from an acylated amino acid treatment and an organic titanate treatment; (C) a non-volatile oil that is liquid at 25°C; (D) carbonate, (E) Water Contains The mass ratio (B) / (D) of the component (B) to the component (D) is 1 to 20; Water-in-oil emulsion composition.

2. 2. The water-in-oil emulsion cosmetic according to claim 1, wherein the component (D) comprises at least one or more carbonates selected from calcium carbonate and magnesium carbonate.

3. 3. The water-in-oil emulsion composition according to claim 1, wherein the mass ratio (A) / (B) of component (A) to component (B) is 0.003 to 4.

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