Water-in-oil cosmetics

Abstract

To provide a water-in-oil type cosmetic that has quick color changing during application, excellent color uniformity of a cosmetic film after application, high make-up lasting quality, and excellent stability.SOLUTION: A water-in-oil type cosmetic contains: easily disintegratable capsule particles having the average particle diameter 10 to 300 μm which contain one kind or more of coloring pigment and at least one kind of resin in an inner layer, and contain hydrophilic pigment titanium oxide in an outer layer; silicone resin; and titanium oxide of pigment whose surface is treated by hydrophobic treatment agent having hydrophobic group of the carbon number 8 to 24, by which the cosmetic is excellent in color-changing speed during application, color uniformity of a cosmetic film after application, make-up lasting quality, and stability.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] Water-in-oil cosmetic compositions have been used in cosmetics that require long-lasting makeup because they form a highly water-resistant cosmetic film. On the other hand, in recent years, in cosmetics that impart color, attention has been focused on the color-changing effect that allows users to enjoy the gap between the appearance color of the formulation and the color change after application, and the inclusion of capsule-type pigments in which color pigments are encapsulated in easily disintegrating capsule particles has been investigated. For example, a color-changing composition has been proposed that combines releasable microcapsules, an aqueous phase, and a hydrophilic gelling agent to present a white appearance while exhibiting a makeup effect after application to the skin (see, for example, Patent Document 1). Other proposed products include an oil-based cosmetic that contains a liquid oil, a solid oil or oil gelling agent, microcapsules, an aqueous component, a lipophilic active agent, or a water-containing oil, and exhibits improved stability and emollient effects in addition to rapid color change (see, for example, Patent Document 2), and a water-in-oil sunscreen product that contains multilayer capsules containing hydrophobic titanium oxide, hydrophobic zinc oxide, and a pigment, and exhibits a white appearance while presenting a natural color after application, and is non-gritty and has excellent stability (see, for example, Patent Document 3).

[0003] [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-135385 [Patent Document 2] WO2019 / 069362 Brochure [Patent Document 3] Japanese Patent Application Publication No. 2017-515864 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the case of Patent Document 1, although the color change is rapid, the color tone of the temporarily disintegrated aggregates changes depending on the force applied during application, so the color of the cosmetic film after application is not uniform, and some non-uniformly dispersed aggregates may remain, resulting in poor cosmetic wear. In the case of the technology of Patent Document 2, the surface of the color pigment released from the microcapsules upon application to the skin is hydrophilic and compatible with hydrophilic substances, but it is difficult to disperse in an oily solvent, resulting in poor color uniformity of the cosmetic film after application. Furthermore, in the technology of Patent Document 3, the color pigment released from the pigment-containing multilayer capsules is difficult to disperse in an oily solvent, resulting in poor color uniformity of the cosmetic film after application, and as the capsule content increases, it aggregates at the interface of the water-in-oil emulsion, destabilizing the interface and potentially impairing stability.

[0006] Therefore, an object of the present invention is to provide a water-in-oil cosmetic which changes color quickly during application, provides a cosmetic film with excellent color uniformity after application, has long-lasting cosmetic properties, and is highly stable. [Means for solving the problem]

[0007] In view of these circumstances, the present inventors have conducted extensive research and have found that a water-in-oil cosmetic composition that exhibits excellent speed of color change during application, uniformity of color of the cosmetic film after application, cosmetic long-lasting properties, and stability can be obtained by containing easily disintegrating capsule particles with an average particle size of 10 to 300 μm, which contain one or more types of color pigments and at least one type of resin in an inner layer and hydrophilic pigment titanium oxide in an outer layer, and further containing a pigment titanium oxide that has been surface-treated with a silicone resin and a hydrophobic treatment agent having a hydrophobic group having 8 to 24 carbon atoms, and has thus been able to complete the present invention.

[0008] That is, the present invention is [1] The following components (A) to (C): (A) Easily disintegrating capsule particles having an average particle size of 10 to 300 μm, which contain one or more color pigments and at least one resin in the inner layer and hydrophilic pigment titanium oxide in the outer layer. (B) Silicone resin (C) Titanium oxide having an average particle size of 0.1 to 1 μm, which has been surface-treated with a hydrophobic treatment agent (C1) having a hydrophobic group having 8 to 24 carbon atoms. The present invention provides a water-in-oil cosmetic comprising: [2] [1] The water-in-oil cosmetic according to [1], wherein the component (B) is a fluorine-modified silicone resin. [3] The water-in-oil cosmetic composition according to [1] or [2] further contains component (D) ethanol. [4] The water-in-oil cosmetic composition according to any one of [1] to [3] further contains a component (E) a water-dispersible ultraviolet absorber that is solid at 25°C. [5] The water-in-oil cosmetic preparation according to any one of [1] to [4], wherein the component (A) contains polyester-1. [6] The water-in-oil cosmetic preparation according to any one of [1] to [5], wherein the mass ratio (A) / (C) of the component (A) to the component (C) is 0.1 to 10.0. [7] The water-in-oil cosmetic composition according to any one of [1] to [6] further contains a component (F) polyglycerin monoalkyl ester. [8] The water-in-oil cosmetic preparation according to any one of [1] to [7], wherein the component (E) is a benzotriazole-type ultraviolet absorber.

[0009] In addition, the present technology can further adopt the following configurations. [9] The water-in-oil cosmetic preparation according to any one of [1] to [8], wherein the mass ratio (D) / [(D)+(H)] of the component (D) ethanol to the component (H) polyhydric alcohol is 0.1 to 1.0.

[10] The water-in-oil cosmetic composition according to any one of [1] to [9] further contains an organically modified clay mineral as a component (G) as an oil phase thickener. [Effects of the Invention]

[0010] The cosmetic of the present invention changes color quickly during application, provides a cosmetic film with excellent color uniformity after application, and has long-lasting cosmetic properties and excellent stability. DETAILED DESCRIPTION OF THE INVENTION

[0011] Preferred embodiments of the present invention are described in detail below. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. In this specification, percentages are expressed by mass unless otherwise specified. In this specification, when a numerical range is expressed using "to", the range includes both ends of the range. Furthermore, the "average particle size" in this specification is a value (median diameter D50) obtained by observing the surface condition using a scanning electron microscope (JEOL, JSM-7800prime) and measuring with an image analyzer (Luzex AP, Nireco Corporation), and refers to the major axis of the particles.

[0012] The component (A) used in the present invention is a disintegrating capsule particle having an average particle size of 10 to 300 μm, which contains one or more color pigments and at least one resin in the inner layer and a hydrophilic pigment titanium oxide in the outer layer. The component (A) particles are prepared by dispersing a mixture containing the color pigment and resin to form colored core particles, and then coating the outer layer with a powder layer containing the hydrophilic pigment titanium oxide, resulting in a layer with different colors between the inner and outer layers. The color pigment in the inner layer is a pigment that produces a color other than white, and may be uniformly mixed with the resin and then dried to form a core. The inner layer may contain any one selected from the group consisting of 1,3-butanediol polyethylene glycol and dipropylene glycol as a plasticizer for the resin. The outer powder layer contains titanium oxide, but may also contain multiple powders other than the color powder to adjust capsule quality, such as, but not limited to, extender powders such as zinc oxide, boron nitride, silica, talc, and mica. The outer layer may be made of titanium oxide alone or in a mixture of titanium dioxide and titanium dioxide. The readily disintegrating nature of component (A) means that the capsules disintegrate when rubbing the capsules against the skin, dispersing the pigment inside, releasing a layer containing the coloring pigment from the inside and causing a color change during application. It is preferable that the capsules do not disintegrate as much as possible when mixed in a fluid during cosmetic production, and that the capsules have a moderate hardness that allows them to disintegrate under pressure or friction during use.

[0013] Each component contained in component (A) will be explained below. The hydrophilic pigment titanium dioxide of component (A) can be any particle shape or structure that is commonly used in cosmetics and can be used without any particular restrictions. The average particle size of the titanium dioxide contained in component (A) is not particularly limited, but is preferably 0.07 to 4.0 μm, more preferably 0.1 to 1.0 μm, from the viewpoints of the covering power of the cosmetic film after application and the uniformity of color, as it is used as a pigment.

[0014] The content of the hydrophilic pigment titanium oxide contained in component (A) is preferably 10 to 60 mass %, more preferably 15 to 50%, and even more preferably 20 to 40%, from the viewpoint of rapid color change during application.

[0015] The color pigment contained in component (A) is not particularly limited by particle shape (spherical, acicular, plate-like, irregular, etc.), particle size (smoke-like, fine particles, pigment-grade, etc.), particle structure (porous, nonporous, etc.), etc., but specific examples include colored inorganic pigments such as iron oxide, ultramarine, carbon black, chromium oxide, chromium hydroxide, and Prussian blue; colored organic pigments such as Red No. 201, Red No. 202, Red No. 104, Red No. 226, Red No. 228, Yellow No. 5, and Blue No. 1; and natural dyes such as carmine. One or more of these can be used. Among these, iron oxide and ultramarine are preferred from the standpoint of stability.

[0016] The resin contained in component (A) is not particularly limited, and any resin commonly used in cosmetics can be used. Specific examples include polyacrylamide, polymethacrylic acid, polyacrylic acid, polyacrylic acid-polymethacrylic acid copolymer, polyacrylic acid-polyacrylamide copolymer, polyhydroxyethyl methacrylate, poly(N,N-ethylaminoethyl methacrylate), acrylate / ammonium methacrylate copolymer, polyethylene glycol, polyester (e.g., polyester-1), polyester emulsion, polyaminomethacrylate, polyvinylpyrrolidone, ammonium acryloyldimethyltaurate / VP copolymer, sucrose, cellulose, ethyl cellulose, hydroxypropyl methylcellulose, polyvinyl alcohol, and shellac. One or more of these can be used. Among these, polyester-1 is preferred from the viewpoint of both rapid color change during application and stability.

[0017] The method for producing component (A) is not particularly limited, and may include, for example, the steps of homogeneously mixing a color pigment and a resin (and a plasticizer) in a solvent to produce a mixed solution 1, spray-drying the mixed solution 1 to produce core particles in which the color pigment is surrounded by a resin, homogeneously mixing the produced core particles with titanium oxide and, if there is another powder layer, the powder layer and the solvent to produce a mixed solution 2, and spray-drying the mixed solution 2 to produce capsule particles in which a coating layer of a powder layer containing titanium oxide is formed on the outside of the resin. The spray drying may be a spray-drying method.

[0018] Specific examples of component (A) include commercially available products such as MAGICOLOR-103RP, MAGICOLOR-103YP, MAGICOLOR-103BP (titanium dioxide 20-35%, iron oxide 43-53%, mica, dimethyl silylated silica, polyester-1, average particle size 50-60 μm), MAGICOLOR-103UB (titanium dioxide 20-35%, ultramarine blue, mica, dimethyl silylated silica, polyester-1, average particle size 50-60 μm) (all manufactured by BIOGENICS), Tagra Cap (titanium oxide, iron oxide, polymethyl methacrylate, mannitol, hydrogenated lecithin, particle size 70-250 μm) (manufactured by Tagra biotechnology), and MicroBead (titanium oxide, iron oxide, mica, sucrose, ethyl cellulose, hydroxypropyl methylcellulose, average particle size 300 μm) (manufactured by Salvona Technologies).

[0019] The average particle size of the easily disintegrable particles of component (A) is 10 to 300 μm, preferably 20 to 250 μm, and more preferably 30 to 200 μm, from the viewpoint of the speed of color change during application. This range is preferable for achieving a good feel in use and uniform color.

[0020] The content of component (A) is preferably 0.1 to 20%, more preferably 0.5 to 10%, and even more preferably 1 to 5%, from the viewpoints of the speed of color change during application and the uniformity of the color of the cosmetic film after application.

[0021] The silicone resin component (B) used in the present invention has an organopolysiloxane skeleton and forms a film on the skin. Component (B) is soluble in oils such as silicone oils and volatile hydrocarbon oils, and any film-forming material can be used as long as it has film-forming properties. In the present invention, film formation refers to the formation of a film after applying a 40% solution of the silicone resin in a soluble solvent to a glass plate using a 400 μm-thick applicator and drying at room temperature for 24 hours.

[0022] Component (B) used in the present invention is not particularly limited, and examples thereof include trimethylsiloxysilicate, polymethylsilsesquioxane, polymethylsilsesquioxane / trimethylsiloxysilicate, trifluoroalkyldimethyltrimethylsiloxysilicate, acrylic-silicone graft copolymer, long-chain alkyl-modified acrylic-silicone graft copolymer, and polyvinylpyrrolidone-modified methylpolysiloxane, and these can be used alone or in combination. The inclusion of these improves the dispersibility of the pigment titanium dioxide and color pigment released as component (A) disintegrates upon rubbing onto the skin, thereby enhancing the color uniformity of the cosmetic film after application. Furthermore, the formation of a film with excellent water resistance and sebum resistance leads to improved cosmetic wear. Furthermore, component (B), which has excellent dispersibility in oil-based solvents, inhibits the aggregation of component (A) at the emulsion interface and improves stability. Among these, trifluoroalkyldimethyltrimethylsiloxysilicate is particularly preferred from the viewpoint of its high dispersibility in oil-based solvents and its enhanced color uniformity and stability of the cosmetic film after application. Commercially available products include XS66-B8226 (50% cyclopentasiloxane solution), XS66-C1191, and XS66-B8636 (50% dimethicone solution) (all manufactured by Momentive Performance Materials Japan).

[0023] From the viewpoint of color uniformity and stability of the cosmetic film after application, the content of component (B) is preferably 0.1 to 10% by mass, more preferably 1 to 5% by mass. This range improves the dispersibility of component (A), facilitates spreading on the skin, and enhances the color uniformity of the cosmetic film after application.

[0024] Component (C) used in the present invention is titanium dioxide that has been surface-treated with a hydrophobic treatment agent (C1) having a hydrophobic group with 8 to 24 carbon atoms. It is believed that physical friction between the powder particles upon application to the skin promotes the disintegration of component (A), thereby improving the speed of color change during application. Furthermore, because component (C) has high dispersibility in the outer oil layer, its inclusion in combination with component (B) is expected to further improve the dispersibility on the skin of the pigment titanium dioxide and color pigment released from component (A) upon application, thereby enhancing the color uniformity of the cosmetic film after application.

[0025] The titanium oxide contained in component (C) can be any titanium oxide commonly used in cosmetics, regardless of particle shape, particle structure, or surface treatment. The average particle size of the titanium oxide contained in component (C) is preferably 0.1 to 1.0 μm from the viewpoints of the speed of color change during application after application and the uniformity of the color of the cosmetic film. Within this range, the disintegration of component (A) during application and the speed of color change during application can be promoted.

[0026] The hydrophobic treatment agent (C1) containing 8 to 24 carbon atoms contained in component (C) enhances the dispersibility of titanium dioxide in the outer oil layer. Component (C) is adsorbed onto the pigment titanium dioxide and coloring pigment released from component (A) upon application to the skin, improving their dispersibility and presumably playing a role in enhancing the color uniformity of the cosmetic film after application. Component (C1) is not particularly limited as long as it can be hydrophobized, and specific examples include silicone compounds (e.g., alkyl-modified silicones), coupling agents (e.g., silane-based coupling agents such as alkylalkoxysilane-treated coupling agents, aluminum-based coupling agents, titanium-based coupling agents, etc.), fluorine compounds (e.g., perfluoroalkylalkoxysilane-treated coupling agents), hydrocarbon waxes, polyethylene oxide, lecithin / hydrogenated phospholipids, N-acylamino acid treatments (e.g., lauroyl lysine treatment, sodium dilauroyl glutamate lysine treatment, disodium stearoyl glutamate treatment, sodium lauroyl aspartate treatment), fatty acid and salt treatments, fatty alcohol treatments, fatty acid ester treatments (e.g., polysaccharide fatty acid esters, fats and oils such as triglycerides), fatty acid amide treatments, sphingolipid treatments, and the like, and these may be used after being subjected to double or triple or more treatments. Among these, from the viewpoint of improving the uniformity of the color of the cosmetic film after application, triethoxycaprylylsilane treatment, isopropyl titanium triisostearate treatment, metal soap treatment, fatty acid ester treatment, polyethylene oxide treatment, lecithin / hydrogenated phospholipid treatment, and N-acyl amino acid treatment are preferred.

[0027] From the viewpoint of achieving uniformity in the color of the cosmetic film after application, the amount of component (C1) to be treated is preferably 0.1 to 7%, more preferably 0.5 to 5%, of component (C). There are no particular limitations on the method of surface treatment, and this surface treatment can be carried out using either a dry method or a wet method.

[0028] From the viewpoint of the speed of color change during application, the content of component (C) is preferably 0.01% to 30%, more preferably 0.5% to 20%, and even more preferably 1 to 10%. Within this range, it is expected that the disintegration of component (A) can be promoted, the viscosity of the cosmetic film can be significantly increased, and it can be spread, all of which can improve the speed of color change during application.

[0029] From the viewpoint of the uniformity of the color of the cosmetic film after application, the content ratio of component (A) to component (C) is preferably component (A) / component (C) from 0.1 to 50, more preferably from 0.5 to 20, and even more preferably from 1.0 to 10. When component (A) / component (C) is within this range, it is expected that the dispersibility of the pigment titanium oxide and color pigment released from component (A) will be improved by the presence of (C), and both can improve the uniformity of the color of the cosmetic film after application.

[0030] The water-in-oil cosmetic of the present invention preferably further contains component (D) ethanol. It is preferably contained in an amount of 1 to 15%, more preferably 1 to 10%. This range improves the speed of color change, improves color uniformity, and maintains color stability.

[0031] The water-in-oil cosmetic of the present invention may also contain component (H) a polyhydric alcohol. Examples include glycerin, pentaerythritol, trimethylolpropane, ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,3-propanediol, pentylene glycol, hexylene glycol, isoprene glycol, dipropylene glycol, tripropylene glycol, diethylene glycol, 1,2-pentanediol, ethylhexylglycerin, caprylyl glycol, polyethylene glycol, diglycerin, polyglycerin, glycol ether, and the like. While there are no particular restrictions on the content, it is preferable that the mass ratio (D) / [(D)+(H)] of component (D) to component (H) is 0.1 to 1.0. A content in this range is even more preferable. This range improves stability, color change speed, and color uniformity.

[0032] The water-in-oil cosmetic of the present invention preferably also contains component (E), a water-dispersible UV absorber that is solid at 25°C. The inclusion of component (E) is preferred because it enhances the effect of improving the speed of color change and color uniformity during application. Adding solid particles to the internal aqueous phase promotes rapid adhesion to the skin when the internal aqueous phase disperses after application, making component (A) more likely to be caught and rubbed on the skin, accelerating the formation of a cosmetic film and improving the speed of color change during application and cosmetic durability.

[0033] The component (E) of the present invention is not particularly limited as long as it is one normally used in cosmetics, and any of these can be used. Specific examples include bisethylhexyloxyphenol methoxyphenyl triazine and methylenebisbenzotriazolyltetramethylbutylphenol, and one or more of these can be used. Among these, methylenebisbenzotriazolyltetramethylbutylphenol is more preferred from the viewpoint of stability. Commercially available products include Tinosorb S Aqua (manufactured by BASF), Parsol Max (manufactured by DSM), and K22-M40 (manufactured by Dainippon Kasei Co., Ltd.).

[0034] The content of component (E) of the present invention is preferably 0.1 to 10%, more preferably 0.5 to 5%, and even more preferably 1 to 4%, in terms of solid content, from the viewpoints of the speed of color change during application, cosmetic durability, and stability over time. This range is preferable because cosmetic durability and stability are improved, there is no stickiness, and the speed of color change and color uniformity are improved.

[0035] Furthermore, the water-in-oil cosmetic of the present invention may contain component (F), a polyglycerol monoalkyl ester. Component (F) is a polyglycerol alkyl ester in which a monoalkyl group is bonded to the glycerol chain, and its inclusion in the internal aqueous layer is expected to further enhance the dispersibility of component (E), contributing to the speed of color change during application, cosmetic longevity, and stability.

[0036] Component (F) is not particularly limited, and any of those commonly used in cosmetics can be used. Specific examples include decaglyceryl caprate, decaglyceryl laurate, decaglyceryl myristate, decaglyceryl oleate, decaglyceryl stearate, decaglyceryl isostearate, hexaglyceryl caprate, hexaglyceryl laurate, hexaglyceryl myristate, hexaglyceryl oleate, hexaglyceryl stearate, hexaglyceryl isostearate, pentaglyceryl caprate, pentaglyceryl laurate, pentaglyceryl myristate, pentaglyceryl oleate, pentaglyceryl stearate, and pentaglyceryl isostearate, and these can be used alone or in combination. Among these, from the viewpoint of improving the speed of color change during application and stability, it is preferable that the average degree of polymerization of glycerin is 5 or more, the monoalkyl chain preferably has 14 to 18 carbon atoms, and the HLB is preferably 7 or more. Specific examples include, but are not limited to, polyglyceryl-10 laurate, and examples of commercially available products include NIKKOL Decaglyn 1-L (manufactured by Nikko Chemicals Co., Ltd.).

[0037] The content of component (F) is preferably 0.01 to 5%, more preferably 0.1 to 3%, from the viewpoints of speed of color change during application, cosmetic durability, and improved stability.

[0038] It is also preferable to contain component (G) an organically modified clay mineral as an oil layer thickener. There are no particular restrictions on the content, but the lower limit is preferably 0.1% or more, more preferably 0.5% or more, and even more preferably 1% or more. The upper limit is preferably 5% or less, more preferably 4% or less, and even more preferably 3% or less. Within this range, stability and color uniformity can be improved. Specifically, one or more of disteardimonium hectorite, stearalkonium hectorite, etc. can be contained.

[0039] In addition to the above-mentioned components (A) to (G), the cosmetic preparation of the present invention may contain, depending on the intended purpose, aqueous components other than components (D) and (H), powders other than components (A) and (C), oils, oil layer thickeners other than component (G), surfactants other than component (F), UV absorbers other than component (E), moisturizers, anti-fading agents, antioxidants, cosmetic ingredients, preservatives, fragrances, and other ingredients within quantitative and qualitative ranges that do not impair the effects of the present invention. In particular, aqueous components refer to water and components that dissolve or disperse in water. Water is not limited to purified water and can include water extracted from natural sources, steam-distilled water from plants, and other waters. The pH, salt content, and other impurity content are not particularly limited. Furthermore, water-soluble and insoluble substances that dissolve in water may be dispersed and included, and the term "aqueous components" refers to the entire components of the inner aqueous layer. The content is preferably 15% or more as the lower limit, more preferably 20% or more as the upper limit, and is preferably 60% or less, more preferably 50% or less, and even more preferably 40% or less as the upper limit. This range is more preferable in terms of excellent color uniformity and makeup durability.

[0040] The method for producing the cosmetic of the present invention is not particularly limited, but examples include a method in which an oily solvent containing components (B) and (C), and optionally component (G), is pre-dispersed, and then, if components (D), (E), (F), and (H) are also present, an aqueous component containing these components is added, emulsified, and then component (A) is mixed in, or component (A) is pre-mixed into the oil phase and emulsified. It is anticipated that, with continued application, the hydrophilic pigment titanium dioxide and coloring pigment of component (A) will disperse onto the skin, and the other components will have the effect of improving the color uniformity of the cosmetic film after application. In water-in-oil cosmetics, considering the rapidity of color change during application, it is preferable to include component (A) in the outer oil phase, since the powder in the outer phase tends to adhere to the skin after application. However, the surface of component (A) is not particularly lipophilic and tends to be difficult to disperse in the outer oil phase. Therefore, the present invention has the effect of accelerating color change and further improving finer secondary dispersion after primary capsule collapse, thereby achieving color uniformity.

[0041] The cosmetic of the present invention is not particularly limited, and examples thereof include makeup cosmetics such as a makeup base, foundation, eye color, lipstick, and lip balm, skin care cosmetics such as emulsions, beauty serums, and sunscreens, hair care cosmetics such as hair milk and hair protectants, and body cosmetics such as body milk. Among these, the cosmetic of the present invention is preferably used in makeup cosmetics such as sunscreens, makeup bases, foundations, eye color, blush, lipstick, and lip balm, and more preferably in makeup bases, foundations, and sunscreens, since the effects of the present invention are significantly exhibited. In particular, the cosmetic is more suitable for use in cosmetics that require an effect of preventing sebum breakdown.

[0042] Furthermore, the formulation of the cosmetic of the present invention is a water-in-oil cosmetic because the effects of the present invention are most pronounced. However, the shape of the item is not particularly limited, and it may be a solid, stick, paste, cream, or liquid. Furthermore, a propellant can be added to make the cosmetic of the present invention into an aerosol or spray formulation. The propellant is not particularly limited as long as it is one typically used in cosmetics. Specific examples include liquefied petroleum gas, dimethyl ether, nitrogen, nitrous oxide, and carbon dioxide. The container is also not particularly limited, and may be a cushion-shaped foam material pre-impregnated with the cosmetic, a container with an applicator, a tube container, a dispenser container, a jar container, or the like. [Example]

[0043] Description of the Examples The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples.

[0044] Examples 1 to 26 and Comparative Examples 1 to 6: Foundation (cream type) The foundations shown in Tables 1 to 3 were prepared, and the following evaluations were carried out on the speed of color change during application, the color uniformity of the cosmetic film after application, the makeup durability, and stability, and were judged according to the following criteria. The results are also shown.

[0045] [Table 1] *1: MAGICOLOR-103RP (manufactured by BIOGENICS) (red iron oxide 43-53%, polyester 1, mica, dimethyl silylated silica, titanium dioxide 20-35%, average particle size 50-60 μm) *2: MAGICOLOR-103YP (manufactured by BIOGENICS) (yellow iron oxide 43-53%, polyester 1, mica, dimethyl silylated silica, titanium dioxide 20-35%, average particle size 50-60 μm) *3: MAGICOLOR-103BP (manufactured by BIOGENICS) (black iron oxide 43-53%, polyester 1, mica, dimethyl silylated silica, titanium dioxide 20-35%, average particle size 50-60 μm) *4: MAGICOLOR-103UB (manufactured by BIOGENICS) (ultramarine blue 43-53%, polyester 1, mica, dimethylsilyl silica, titanium dioxide 20-35%, average particle size 50-60 μm) *5: OTS-2 Titanium CR-50 (triethoxycaprylylsilane) 2% treatment (manufactured by Daito Kasei Kogyo Co., Ltd.) *6: ITT-2 TiO2 CR-50(2) (isopropyl titanium triisostearate) 2% (manufactured by Daito Kasei Kogyo Co., Ltd.) *7: CR-50 treated with 3% zinc laurate (manufactured by Ishihara Sangyo Kaisha) (manufactured by Daito Kasei Kogyo Co., Ltd.) *10: Chemisnow MR-5C (manufactured by Soken Chemical Engineering Co., Ltd.) *11: XS66-B8226 (50% solids, D5 solvent, manufactured by Momentive Performance Materials Japan) *12: Silicon KF-7312J (solid content 50%, D5 solvent, manufactured by Shin-Etsu Chemical Co., Ltd.) *14: Silicon KF-96A (6CS) (Shin-Etsu Chemical Co., Ltd.) *15: K22-M40 (methylenebisbenzotriazolyltetramethylbutylphenol 40%, BG, phenoxyethanol, polyglyceryl-10 laurate 8%, manufactured by Mizunihon Kasei Co., Ltd.)

[0046] [Table 2] *16: TINOSORB S AQUA (bis-ethylhexyloxyphenol methoxyphenyl triazine 20%, AMP, polymethyl methacrylate, polyoxyethylene dodecyl sulfate sodium, manufactured by BASF Japan Ltd.) *18: DECAGLYN IL (manufactured by Nippon Surfactant Co., Ltd.)

[0047] [Table 3] *8: TIPAQUE CR-50 (manufactured by Ishihara Sangyo Kaisha) *9: SA-Titanium CR-50 (80%) (Dimethicone) 2% (Miyoshi Chemical Industry Co., Ltd.) *13: Estergum HP (manufactured by Arakawa Chemical Industries, Ltd.) *17: EUSOLEX 232 (Merck) *19: TINOSORB S (manufactured by BASF Japan)

[0048] (Production methods shown in Tables 1 to 3) (Components not listed in each table are not added.) A. Disperse ingredients 5 to 13 with ingredients 18 and 19, then disperse ingredient 17 dissolved in ingredients 14, 15, and 16, ingredients 20 to 22, and ingredients 23 to 26, and mix evenly. B. Mix ingredients 27 to 35 uniformly and disperse. Add B to CA and emulsify, then add ingredients 1 to 4 and mix. The DC is degassed and the foundation is filled into a container.

[0049] (Evaluation method) The following evaluation items were evaluated by the following methods. (Evaluation items) B. The speed of color change during application B. Uniformity of the color of the cosmetic film after application C. Makeup lasts 2. Stability

[0050] (Evaluation method 1) (a. Speed ​​of color change during application, b. Uniformity of color of makeup film after application, c. Makeup durability) A use test of the foundation was conducted by a 20-member expert evaluation panel, and each panel member rated and scored the following on a 6-point absolute scale for a) the speed of color change during application and b) the uniformity of the color of the makeup film after application. The average score was calculated from the total scores of all panelists for each sample, and judged according to the following 4-point rating criteria. c) Makeup staying power was evaluated using the same method to see whether the makeup had come off 8 hours after applying each sample to the skin. <Evaluation criteria> (Evaluation result): (Score) Very good: 6 points Good: 5 points Fairly good: 4 points Average: 3 points Slightly poor: 2 points Defective: 1 point <4-level evaluation criteria> (Judgment): (Evaluation criteria) ◎: Over 4.0 points: (Very good) ○: Over 3.5 points, 4.0 points or less: (Good) △: Over 2.0 points and 3.5 points or less: (slightly poor) ×: 2.0 points or less: (defective)

[0051] (Evaluation Method 2) (2. Stability) Regarding the second stability of the foundation, each sample was placed in a thermostatic chamber at 50°C for one month, and the appearance was observed and evaluated according to the following criteria. <Judgment criteria> (Judgment): (Evaluation) ◎: No separation or aggregation at all ○: Very little separation or aggregation △: Significant separation or aggregation ×: Significant separation or aggregation

[0052] As is clear from the results in Table 1, Examples 1 to 26 were cosmetics that were excellent in terms of the speed of color change during application, the uniformity of the color of the cosmetic film after application, the long-lasting makeup, and stability. On the other hand, Comparative Example 1, which did not contain component (A), did not undergo color change during application. Furthermore, Comparative Example 2, which did not contain component (B), and Comparative Example 3, which contained pentaerythrityl hydrogenated rosinate instead of component (B), exhibited poor dispersibility of the pigment titanium oxide and color pigment released from component (A) upon application, resulting in insufficient color uniformity in the cosmetic film after application. Furthermore, component (A) tended to aggregate at the emulsion interface, resulting in poor stability. Comparative Example 4, which did not contain component (C), exhibited poor dispersibility of the pigment titanium oxide and color pigment released from component (A) upon application to the skin, resulting in poor dispersibility on the skin of the cosmetic film after application, resulting in a lack of color uniformity. Furthermore, Comparative Example 5, which contained untreated titanium oxide instead of component (C), exhibited poor dispersibility on the skin of the pigment titanium oxide and color pigment released from component (A) upon application, resulting in a lack of color uniformity in the cosmetic film after application, resulting in insufficient cosmetic wear. Furthermore, in Comparative Example 6, which contained dimethicone-treated titanium oxide instead of component (C), the dispersibility of component (C) in the oily solvent was insufficient, and therefore the pigment titanium oxide and coloring pigment released from component (A) upon application were poorly dispersible on the skin, and the color of the cosmetic film after application was also lacking in uniformity.

[0053] Example 27: Water-in-oil sunscreen (Component) (mass%) 1. Red iron oxide capsules *1 0.5 2. Yellow iron oxide capsules *2 0.5 3. Black iron oxide capsules *3 1.0 4. Mica 2.0 5. 0.5% phospholipid-treated titanium dioxide (average particle size 0.4 μm) 10.0 6. Silicone-treated zinc oxide (average particle size 25 nm) 2.0 7. Talc 1.0 8. Methyl methacrylate crosspolymer *10 1.0 9. Dimethicone (1.5CS) 20.0 10. Ethylhexyl methoxycinnamate 10.0 11.PEG-9 Polymethyldimethyl 4.0 Siloxyethyl Dimethicone 3.0 12. Polydimethyl Lauryl PEG-9 Siloxyethyl Dimethicone 1.0 13. Trifluoroalkyldimethyltrimethylsiloxysilicate*11 0.5 14. Dimethicone *14 2.0 15. Phenyl Trimethicone 2.0 16. Disteardimonium Hectorite 1.0 17. Stearalkonium Hectorite 1.0 18. Ethanol 5.0 19.1,3 Butylene Glycol 3.0 20. Methylenebisbenzotriazolyltetramethyl Butylphenol water dispersion*15 1.5 21. Ethylhexylglycerin 0.5 22.BHT 0.005 23. Phenoxyethanol 0.02 24. Polyglyceryl-10 Isostearate 5.0 25. Remaining purified water

[0054] (Manufacturing method) A. Disperse ingredients 1 to 17 evenly. B. Disperse ingredients 18 to 23 evenly. B was added to CA and emulsified to obtain a water-in-oil sunscreen.

[0055] The water-in-oil sunscreen of Example 27 obtained in this manner was a cosmetic product that exhibited excellent speed of color change during application, uniform color of the cosmetic film after application, cosmetic long-lasting effect, and stability.

[0056] Example 28: Water-in-oil base cosmetic (Component) (mass%) 1. Red iron oxide capsules *1 3.0 2. Yellow iron oxide capsules *2 3.0 3. Black iron oxide capsules *3 3.0 4. Mica 2.0 5. Titanium dioxide treated with 2% stearoyl glutamic acid disodium (Average particle size 0.25μm) 2.0 6. Dimethicone-treated zinc oxide microparticles (average particle size 35 nm) 2.0 7. Talc 1.0 8. Nylon-12 1.0 9. Methyl Trimethicone 20.0 10. Ethylhexyl methoxycinnamate 10.0 11. PEG-9 Polymethyldimethyl Siloxyethyl Dimethicone 3.0 12. Polydimethyl Lauryl PEG-9 Siloxyethyl Dimethicone 1.0 13. Trifluoroalkyldimethyltrimethylsiloxysilicate*11 3.0 14. Dimethicone *14 2.0 15. Phenyl Trimethicone 2.0 16. Isononyl isononanoate 1.0 17. Disteardimonium Hectorite 1.0 18. Ethanol 5.0 19. Dipropylene Glycol 5.0 20. Methylenebisbenzotriazolyltetramethyl Butylphenol water dispersion*15 1.5 21. Diglycerin 1.0 22.BHT 0.005 23. Phenoxyethanol 0.02 24. Pentaglyceryl Isostearate 2.0 25. Remaining purified water

[0057] (Manufacturing method) A. Disperse ingredients 1 to 17 evenly. B. Disperse ingredients 18 to 23 evenly. B was added to CA and emulsified to obtain a water-in-oil base.

[0058] The water-in-oil base of Example 28 obtained in this manner was a cosmetic that exhibited excellent speed of color change during application, uniformity of color of the cosmetic film after application, long-lasting makeup, and stability.

[0059] Example 29: Solid water-in-oil foundation (Component) (mass%) 1. Polyethylene wax 2.0 2.CameleonCaps Yellow (Yellow Iron Oxide, Titanium Dioxide, Acrylate / Ammonium Methacrylate Copolymer, Cellulose Acetate, Magnesium Stearate, Propylene Glycol Stearate, particle size 70~250μm) (Tagra biotechnology) 0.5 3.CameleonCaps Red (Red Iron Oxide, Titanium Dioxide, Acrylate / Ammonium Methacrylate Copolymer, Cellulose Acetate, Magnesium Stearate, Propylene Glycol Stearate, particle size 70~250μm) (Tagra biotechnology) 0.5 4. Lauroyl Lysine *20 2.0 5. Titanium dioxide treated with 2% dextrin fatty acid ester (average particle size 0.27 μm) 2.0 6. Fine particle zinc oxide 2.0 7. Talc 1.0 8. Silica *21 1.0 9. Methyl Trimethicone 20.0 10. Ethylhexyl methoxycinnamate 10.0 11. PEG-9 Polymethyldimethylsiloxyethyl Dimethicone 3.0 12. Polydimethyl Lauryl PEG-9 Siloxyethyl Dimethicone 1.0 13. Trimethylsiloxysilicate *12 10.0 14. Dimethicone *13 2.0 15. Isostearyl Malate 2.0 16. Disteardimonium Hectorite 1.0 17. Stearalkonium Hectorite 1.0 18. Ethanol 5.0 19.1,3 Butylene Glycol 5.0 20. Methylenebisbenzotriazolyltetramethyl Butylphenol water dispersion*15 10.0 21. Tripropylene glycol 1.0 22.BHT 0.005 23. Phenoxyethanol 0.02 24. Polyglyceryl-10 Oleate 1.0 25. Remaining purified water *20: Amihope LL (Ajinomoto Co., Inc.) *21: SILICA MICRO BEAD BA-1 (Nippon Shokubai Kasei Co., Ltd.)

[0060] (Manufacturing method) A. Dissolve and disperse ingredients 1 to 17 uniformly. B. Disperse ingredients 18 to 23 evenly. B was added to CA and emulsified to obtain a water-in-oil foundation, which was then melted and poured into a container, and solidified after cooling.

[0061] The solid water-in-oil foundation of Example 29 obtained in this manner was a cosmetic product that exhibited excellent speed of color change during application, uniformity of color of the cosmetic film after application, cosmetic long-lasting effect, and stability.

Claims

1. The following components (A) to (C): (A) Easily disintegrating capsule particles having an average particle size of 10 to 300 μm, which contain one or more color pigments and at least one resin in the inner layer and hydrophilic pigment titanium oxide in the outer layer. (B) Silicone resin (C) titanium oxide having an average particle size of 0.1 to 1 μm that has been surface-treated with a hydrophobizing agent (C1) having a hydrophobic group having 8 to 24 carbon atoms; Further, it contains component (D) ethanol, Further, the composition contains component (G) an organically modified clay mineral. Water-in-oil cosmetics.

2. 2. The water-in-oil cosmetic according to claim 1, wherein said component (B) is a fluorine-modified silicone resin.

3. The water-in-oil cosmetic composition according to claim 1 or 2, further comprising a component (E) a water-dispersible ultraviolet absorber that is solid at 25°C.

4. 4. The water-in-oil cosmetic according to claim 1, wherein the resin of component (A) contains polyester-1.

5. 5. The water-in-oil cosmetic according to claim 1, wherein the mass ratio (A) / (C) of the components (A) and (C) is 0.1 to 10.

0.

6. The water-in-oil cosmetic according to any one of claims 1 to 5, further comprising a component (F) polyglycerol monoalkyl ester.

7. 4. The water-in-oil cosmetic according to claim 3, wherein the component (E) is a benzotriazole-type ultraviolet absorber.

8. 8. The water-in-oil cosmetic according to claim 1, which may further contain a component (H) polyhydric alcohol, and wherein the mass ratio of the component (D) to the component (H), (D) / [(D)+(H)], is 0.1 to 1.

0.

9. 9. The water-in-oil cosmetic according to claim 1, wherein the outer oil layer of the water-in-oil cosmetic contains component (A).

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