Sunscreen cosmetic

Abstract

The present invention provides a sunscreen cosmetic that has an excellent ultraviolet protection effect and a good feeling during application, and is free from the precipitation of crystals and is therefore stable.　The present invention relates to a sunscreen cosmetic comprising the following components (A), (B) and (C), wherein the mass ratio (A1 / A2) of the component (A1) to the component (A2) is 3.5-120, the mass ratio (B / (A1 + A2)) of the component (B) to the total amount of the component (A1) and the component (A2) is 2.7-9, and the mass ratio (B1 / A) of the component (B1) to the component (A) is less than 1. (A) A water-insoluble organic ultraviolet absorber which has a solid form at 25°C and comprises (A1) ethylhexyl triazone and (A2) bis-ethylhexyloxyphenol methoxytriazine, in an amount of 10-20% by mass; (B) an oil agent which has a liquid form at 25°C and comprises (B1) a water-insoluble organic ultraviolet absorber having a liquid form at 25° C, in an amount of 12-40% by mass; and (C) ethanol, in an amount of 48-78% by mass.

Description

Sunscreen cosmetics

[0001] The present invention relates to a sunscreen cosmetic.

[0002] Sunscreen cosmetics contain ultraviolet absorbers and ultraviolet scattering agents to achieve high ultraviolet protection. In particular, sunscreen cosmetics for people who spend time outdoors are required to have a high SPF value, which is an index of protection against sunburn caused primarily by UVB, and a high PA value (also known as UVAPF value), which is an index of protection against UVA. Ethylhexyl triazone and bisethylhexyloxyphenol methoxytriazine are used as ultraviolet absorbers that provide these ultraviolet protection effects (Patent Document 1). However, because these excellent ultraviolet absorbers are solid at room temperature, it has been necessary to incorporate a large amount of liquid oil into liquid sunscreen cosmetics in order to stably incorporate them (Patent Document 1).

[0003] (Patent Document 1) JP 2017-780554 A

[0004] The present invention relates to a sunscreen cosmetic composition containing the following components (A), (B), and (C), in which the mass ratio (A1 / A2) of component (A1) to component (A2) is 3.5 or more and 120 or less, the mass ratio (B / (A1+A2)) of component (B) to the total amount of components (A1) and (A2) is 2.7 or more and 9 or less, and the mass ratio (B1 / A) of component (B1) to component (A) is less than 1. (A) 10% by mass or more and 20% by mass or less of a water-insoluble organic ultraviolet absorber that is solid at 25°C, comprising (A1) ethylhexyl triazone and (A2) bisethylhexyloxyphenol methoxytriazine, (B) 12% by mass or more and 40% by mass or less of an oil agent that is liquid at 25°C, comprising (B1) a water-insoluble organic ultraviolet absorber that is liquid at 25°C, and (C) 48% by mass or more and 78% by mass or less of ethanol. Detailed Description of the Invention

[0005] The present invention relates to a stable sunscreen cosmetic that contains a water-insoluble organic ultraviolet absorber that is solid at 25°C, has excellent ultraviolet protection effect, feels good to the touch when applied, and is inhibited from crystal precipitation.

[0006] The present inventors have discovered that by setting the contents of ethylhexyl triazone and bisethylhexyloxyphenol methoxytriazine, the content of liquid oil containing a liquid UV absorber, and the content ratio thereof within certain ranges, and further dissolving them in ethanol to form a composition, it is possible to obtain a stable sunscreen cosmetic that has excellent UV protection effects, feels good to the touch when applied, and is inhibited from crystallizing out of the water-insoluble UV absorber that is solid at room temperature.

[0007] According to the present invention, there is provided a stable sunscreen cosmetic which contains a water-insoluble ultraviolet absorber that is solid at 25°C, has excellent ultraviolet protection effect, feels good to the touch when applied, and is inhibited from crystal precipitation.

[0008] One embodiment of the sunscreen cosmetic of the present invention is a sunscreen cosmetic comprising the following components (A), (B), and (C): (A) 10% by mass or more and 20% by mass or less of a water-insoluble organic ultraviolet absorber that is solid at 25°C, the water-insoluble organic ultraviolet absorber comprising (A1) ethylhexyl triazone and (A2) bisethylhexyloxyphenol methoxytriazine; (B) 12% by mass or more and 40% by mass or less of an oil agent that is liquid at 25°C, the oil agent comprising (B1) a water-insoluble organic ultraviolet absorber that is liquid at 25°C; and (C) 48% by mass or more and 78% by mass or less of ethanol; wherein the mass ratio (A1 / A2) of component (A1) to component (A2) is 3.5 to 120; the mass ratio (B / (A1+A2)) of component (B) to the total amount of components (A1) and (A2) is 2.7 to 9; and the mass ratio (B1 / A) of component (B1) to component (A) is less than 1.

[0009] Component (A) of the cosmetic of the present invention is a water-insoluble organic UV absorber that is solid at 25°C and contains (A1) ethylhexyl triazone and (A2) bisethylhexyloxyphenol methoxytriazine. "Solid at 25°C" means that it has no fluidity at 25°C under 1 atmosphere. "Water-insoluble" means that its solubility in water is 1% by weight or less. As an organic UV absorber, it is also an organic compound. (A1) Ethylhexyl triazone (also known as 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine) is a type of triazine UV absorber that exhibits excellent UV absorption, particularly in the UVB wavelength region. It is solid at 25°C and has good stability. A commercially available product of ethylhexyl triazone is "Uvinal T150" (BASF Japan Ltd.). (A2) Bis-ethylhexyloxyphenol methoxytriazine (also known as 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine) is also a type of triazine-based ultraviolet absorber that absorbs ultraviolet light over a wide wavelength range from UVA to UVB, is solid at 25°C, and has high photostability. An example of a commercially available bis-ethylhexyloxyphenol methoxyphenyl triazine product that can be used is "Tinosorb S" (BASF Japan Ltd.).

[0010] In addition to components (A1) and (A2), examples of the water-insoluble organic UV absorber that is solid at 25°C include 4-tert-butyl-4'-methoxydibenzoylmethane, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, drometrizole trisiloxane, and 2-ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate. These water-insoluble organic UV absorbers can be used alone or in combination of two or more. Of these, it is more preferable to use one or two selected from hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate and drometrizole trisiloxane. Commercially available products of these components include "PARSOL 1789" (4-tert-butyl-4'-methoxydibenzoylmethane) (manufactured by DSM); "UVINUL APLUS" (2-(4-diethylamino-2-hydroxybenzoyl)hexyl benzoate), "UVINUL M40" (2-hydroxy-4-methoxybenzophenone); "Mosacare A440" (drometrizole trisiloxane) (manufactured by UFC CORPORATION); "Soft Shade DH" (2-ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate) (manufactured by Ajinomoto Co., Inc.); "SUN-SHEL DMTS" (drometrizole trisiloxane) (manufactured by SERA SOO); and "Tinosorb A2B" (trisbiphenyltriazine) (manufactured by BASF), and the like.

[0011] From the viewpoint of obtaining a stable sunscreen cosmetic having excellent UV protection effect and free from crystal precipitation, component (A) is preferably contained in an amount of 10% by mass or more, more preferably 10.5% by mass or more, and even more preferably 11% by mass or more, of the total amount of the sunscreen cosmetic of the present invention. From the same viewpoint, it is preferably contained in an amount of 20% by mass or less, more preferably 18% by mass or less, and even more preferably 16% by mass or less. Specifically, it is preferably 10% by mass or more and 20% by mass or less, more preferably 10.5% by mass or more and 18% by mass or less, and even more preferably 11% by mass or more and 16% by mass or less. The total amount of the sunscreen cosmetic of the present invention refers to the total amount of the cosmetic composition, and, if a propellant is contained in the formulation, it refers to the total amount of the concentrate excluding the propellant.

[0012] From the viewpoint of obtaining a stable sunscreen cosmetic having excellent UV protection effect and free from crystal precipitation, the content of component (A1) is preferably 1.5% by mass or more, more preferably 1.8% by mass or more, and even more preferably 2% by mass or more, based on the total amount of the sunscreen cosmetic of the present invention. From the same viewpoint, the content is preferably 10% by mass or less, more preferably 9% by mass or less, and even more preferably 7% by mass or less. Specifically, the content is preferably 1.5% by mass or more and 10% by mass or less, more preferably 1.8% by mass or more and 9% by mass or less, and even more preferably 2% by mass or more and 7% by mass or less. On the other hand, from the viewpoint of obtaining a stable sunscreen cosmetic having excellent UV protection effect and free from crystal precipitation, the content of component (A2) is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and even more preferably 0.05% by mass or more, based on the total amount of the sunscreen cosmetic of the present invention. From the same viewpoint, the content is preferably 1% by mass or less, more preferably 0.9% by mass or less, and even more preferably 0.8% by mass or less. Specifically, it is preferably 0.01% by mass or more and 1% by mass or less, more preferably 0.02% by mass or more and 0.9% by mass or less, and even more preferably 0.05% by mass or more and 0.8% by mass or less. From the viewpoint of obtaining a stable sunscreen cosmetic that has excellent UV protection effect, a good feel upon application, and is free from crystal precipitation, the mass ratio (A1 / A2) of component (A1) to component (A2) is preferably 3.5 or more, more preferably more than 5.0, and even more preferably 5.5 or more. From the same viewpoint, it is preferably 120 or less, more preferably less than 100, even more preferably 50 or less, and even more preferably 10 or less. Specifically, it is preferably 3.5 or more and 120 or less, more preferably more than 5.0 and less than 100, even more preferably 5.5 or more and 50 or less, and even more preferably 3.7 or more and 10 or less.

[0013] Furthermore, 2-ethylhexyl paramethoxycinnamate, oxybenzone, and octocrylene are all known components as ultraviolet absorbers, but from the viewpoint that even if the amount of component (B1), a water-insoluble ultraviolet absorber that is liquid at 25°C, is small, crystal precipitation of component (A), a water-insoluble ultraviolet absorber that is solid at 25°C, can be suppressed, the total content of these three components in the sunscreen cosmetic of the present invention is preferably 1% by mass or less, more preferably 0.5% by mass or less, and even more preferably substantially 0.

[0014] Component (B) is an oily agent that is liquid at 25°C and contains (B1) a water-insoluble organic ultraviolet absorber that is liquid at 25°C. It is used for the purposes of dissolving component (A) and achieving a non-sticky feel in use, but in the present invention it also acts to improve the feel upon application. "Liquid at 25°C" means that it has fluidity at 25°C under 1 atmosphere. The (B1) water-insoluble organic UV absorber contained in component (B) that is liquid at 25°C is preferably one or more selected from 2-ethoxyethyl paramethoxycinnamate, a mixture of isopropyl paramethoxycinnamate and diisopropyl cinnamate, methyl bis(trimethylsiloxy)silylisopentyl trimethoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, amyl paradimethylaminobenzoate, 2-ethylhexyl paradimethylaminobenzoate, ethylene glycol salicylate, 2-ethylhexyl salicylate, butyloctyl salicylate, benzyl salicylate, and homomenthyl salicylate. From the viewpoint of enhancing the UV protection effect and dissolving component (A), it is even more preferable to contain 2-ethylhexyl salicylate. Commercially available liquid water-insoluble organic ultraviolet absorbers include, for example, "PARSOL EHS" (2-ethylhexyl salicylate), "PARSOL HMS" (homomenthyl salicylate), and "PARSOL SLX" (Polysilicone-15 (INCI name: Polysilicone-15) (dimethicodiethylbenzalmalonate)) (all manufactured by DSM).

[0015] Component (B) contains an oil other than component (B1) that is liquid at 25° C. Examples of liquid oils other than component (B1) include one or more oils that are liquid at 25° C. selected from ester oils other than component (B1), hydrocarbon oils, ether oils, silicone oils, and fluorinated oils. Of these, from the standpoint of usability such as smoothness during application, it is preferable to contain an ester oil other than component (B1), and it is more preferable to contain one or more oils selected from hydrocarbon oils, ether oils, and silicone oils in addition to an ester oil other than component (B1).

[0016] Examples of ester oils other than the component (B1) include esters of straight-chain or branched-chain fatty acids and straight-chain or branched-chain alcohols or polyhydric alcohols.Specifically, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, isotridecyl isononanoate, isononyl isononanoate, dicaprylyl carbonate, propylheptyl caprylate, diisopropyl sebacate, triethylhexanoin, cetyl lactate, myristyl lactate, dicaprylyl carbonate, lanolin acetate, isocetyl stearate, isostearin Isocetyl ester, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythrityl tetra-2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, trimethylolpropane triisostearate Cetyl propane, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, diethylhexyl naphthalenedicarboxylate, alkyl benzoate (C12-15), cetearyl isononanoate, tri(caprylic / capric)glycerin, butylene glycol (dicaprylic / capric), glyceryl trilaurate, glyceryl trimyristate, glyceryl tripalmitate, glyceryl triisostearate, glyceryl tri-2-heptylundecanoate, glyceryl tribehenate, triglyceride cocoate, Examples of the surfactant include castor oil fatty acid methyl ester, oleyl oleate, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, di-2-ethylhexyl succinate, triethyl citrate, and tripropylene glycol dipivalate.Among the ester oils other than component (B1), from the viewpoint of dissolving a water-insoluble UV absorber that is solid at 25° C., one or more selected from isopropyl myristate, isopropyl palmitate, neopentyl glycol dicaprate, pentaerythrityl tetra-2-ethylhexanoate, caprylic / capric triglyceride, butylene glycol dicaprylate / caprate, 2-hexyldecyl myristate, isotridecyl isononanoate, isononyl isononanoate, dicaprylyl carbonate, propylheptyl caprylate, diisopropyl sebacate, and triethylhexanoin are more preferred. Vegetable oils and animal oils containing these may also be used, such as olive oil, jojoba oil, macadamia nut oil, medfoam oil, castor oil, safflower oil, sunflower oil, avocado oil, canola oil, apricot kernel oil, rice germ oil, and rice bran oil.

[0017] Examples of the hydrocarbon oil include liquid paraffin, squalane, squalene, n-octane, n-heptane, cyclohexane, light isoparaffin, and liquid isoparaffin, and from the viewpoint of usability, liquid paraffin and squalane are preferred. Examples of the ether oil include cetyl-1,3-dimethylbutyl ether, dicapryl ether, dilauryl ether, and diisostearyl ether.

[0018] Examples of the silicone oil include dimethylpolysiloxane, methylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane, etc. Examples of the fluorine oil include fluoropolyether, perfluoroalkyl ether silicone, etc.

[0019] From the viewpoint of dissolving component (A) and suppressing the feel and stickiness upon application, the content of component (B) is preferably 12% by mass or more, more preferably 12.5% ​​by mass or more, and even more preferably 13% by mass or more, of the total amount of the sunscreen cosmetic of the present invention. From the same viewpoint, the content is preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably less than 30% by mass, and even more preferably less than 24% by mass. Specifically, the content is preferably 12% by mass or more and 40% by mass or less, more preferably 12.5% ​​by mass or more and 35% by mass or less, even more preferably 13% by mass or more and less than 30% by mass, and even more preferably 13% by mass or more and less than 24% by mass. Note that, in the present invention, even if the content of component (B) is less than 30% by mass, or even less than 24% by mass, component (A) can be sufficiently dissolved and the feel and stickiness after application can be suppressed.

[0020] From the viewpoint of obtaining a superior UV protection effect while dissolving component (A), (B1) the water-insoluble organic UV absorber that is liquid at 25°C is preferably contained in an amount of 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, based on the total amount of the sunscreen cosmetic of the present invention. From the same viewpoint, it is preferably contained in an amount of 8% by mass or less, more preferably 7% by mass or less, and even more preferably 5% by mass or less. Specifically, it is preferably 1% by mass or more and 8% by mass or less, more preferably 2% by mass or more and 7% by mass or less, and even more preferably 3% by mass or more and 5% by mass or less. Furthermore, from the viewpoint of obtaining a good feel upon application, specifically an excellent sticky feeling and a cool feeling, the content of (B1) the water-insoluble organic UV absorber that is liquid at 25°C is preferably less than the content of component (A), and the mass ratio (B1 / A) of component (B1) to component (A) is preferably less than 1, more preferably 0.7 or less, and even more preferably 0.5 or less. The mass ratio (B1 / A) is preferably 0.1 or more, more preferably 0.2 or more, and even more preferably 0.3 or more.

[0021] The mass ratio (B / (A1+A2)) of component (B) to the total amount of component (A1) and component (A2) is preferably 2.7 or more and 9 or less from the viewpoints of dissolving component (A1) and component (A2), suppressing crystal precipitation, improving the feel upon application, and obtaining excellent UV protection effect. From the same viewpoints, it is preferably 2.8 or more, more preferably 2.9 or more, even more preferably 3.0 or more, preferably 8.7 or less, more preferably 8.5 or less, and even more preferably 8.3 or less. Specifically, it is preferably 2.8 or more and 8.7 or less, more preferably 2.9 or more and 8.5 or less, and even more preferably 3.0 or more and 8.3 or less. Furthermore, from the viewpoint of the feel upon use, the mass ratio (B / A) of component (B) to component (A) is preferably 1 or more and 3 or less, more preferably 1 or more and 2.2 or less, and even more preferably 1 or more and 2 or less.

[0022] Component (C) is ethanol. From the viewpoints of dissolving all of components (A) and (B) to form a stable sunscreen cosmetic and providing a cool, non-sticky feel upon application, the ethanol content is preferably 48% by mass or more, more preferably 49% by mass or more, and even more preferably 49.5% by mass or more, of the total amount of the sunscreen cosmetic of the present invention. From the same viewpoints, the ethanol content is preferably 78% by mass or less, more preferably 77% by mass or less, and even more preferably 75% by mass or less. Specifically, 48% by mass or more and 78% by mass or less is preferred, 49% by mass or more and 77% by mass or less is more preferred, and 49.5% by mass or more and 75% by mass or less is more preferred. Furthermore, from the viewpoints of usability such as stickiness and a cool feel, the mass ratio of component (C) to the total amount of components (A) and (B) (C / A+B) is preferably 0.9 to 3.0, more preferably 1.5 to 3.0. The above-mentioned effect of ethanol is particularly pronounced when the sunscreen cosmetic of the present invention is filled in a squirt-type container.

[0023] In addition to the above-mentioned components, the sunscreen cosmetic of the present invention may contain UV scattering agents, oil gelling agents, surfactants, water-soluble polymers, neutralizing agents, disinfectants, anti-inflammatory agents, preservatives, colorants, chelating agents, whitening agents, antiperspirants, cooling agents, insect repellents, physiologically active ingredients, antioxidants, fragrances, etc. Since the sunscreen cosmetic of the present invention contains components (A) and (B) dissolved in ethanol as described above, the water content is preferably 10% by mass or less, more preferably 5% by mass or less. Furthermore, the water / ethanol mass ratio is preferably 0 or more and less than 0.25, more preferably 0.01 or more and less than 0.15, and even more preferably 0.02 or more and less than 0.1. From the viewpoint of the feel upon application, the sunscreen cosmetic of the present invention preferably contains less than 1% by mass of surfactant, more preferably less than 0.5% by mass, and even more preferably 0% by mass.

[0024] The sunscreen cosmetic of the present invention may be in the form of a liquid composition containing the above-mentioned components, but is more preferably in the form of a sunscreen cosmetic in which the liquid composition is filled in a spray container. When the sunscreen cosmetic of the present invention is a liquid composition, for example, the liquid composition filled in the container can be taken up in the hand and applied to the skin. Furthermore, "sprayed" may mean ejection in the form of droplets or in the form of a mist. From the viewpoint of the feel upon application, ejection in the form of a mist is preferred. Spray containers include aerosol containers and pump spray containers.

[0025] A formulation (aerosol formulation) in which the composition is filled in an aerosol container contains the composition and a propellant. An aerosol formulation using the sunscreen cosmetic composition of the present invention (hereinafter also referred to as the composition) can provide a cooling sensation by spraying and applying the composition to the skin. The composition used as an aerosol concentrate in the aerosol formulation and its preferred embodiments are the same as those described above. That is, the content of the components in the aerosol concentrate is preferably within the above-mentioned range. Examples of propellants used in aerosol formulations include liquefied petroleum gas (LPG) such as ethane, propane, normal butane, isobutane, isopentane, and mixtures thereof; ethers such as dimethyl ether; compressed gases such as nitrogen and carbon dioxide; and the like, and one or more of these can be used.

[0026] In the aerosol formulation, the ratio of the mass of the composition (aerosol concentrate) to the propellant is not particularly limited as long as the composition can be sprayed onto the skin, but from the viewpoint of aerosol performance and the stability of component (A), the mass ratio of the composition to the propellant is preferably in the range of 1:0.01 to 1:10, more preferably 1:0.05 to 1:7.5. When the propellant is LPG, the mass ratio of the composition to LPG is even more preferably 1:0.5 to 1:5. When the propellant is dimethyl ether, the mass ratio of the composition to dimethyl ether is even more preferably 1:0.1 to 1:5. When the propellant is carbon dioxide, the mass ratio of the composition to carbon dioxide is even more preferably 1:0.1 to 1:0.5.

[0027] Examples of aerosol containers used for aerosol formulations include known pressure-resistant containers made of metal, plastic, etc., and double-structure containers in which an inner bag is housed inside a pressure-resistant container. In double-structure containers, it is preferable that the inner bag is filled with the composition, which is an aerosol concentrate, and a propellant is filled between the pressure-resistant container and the inner bag.

[0028] The method for preparing the aerosol formulation is not particularly limited. For example, the aerosol formulation can be prepared by filling the aerosol container with the composition as an aerosol concentrate, attaching a valve, and then filling the propellant through the valve.

[0029] Furthermore, a formulation obtained by filling the composition into a pump spray container is also called a pump spray formulation. For example, a pump spray formulation is prepared by mixing all components except ethanol and dissolving them by heating at 80°C. Once dissolution is confirmed, the mixture is cooled to room temperature and then mixed with ethanol to obtain a concentrate. The concentrate obtained is then filled into a pump spray container.

[0030] Another aspect of the present invention is a method for using a sunscreen cosmetic, in which the composition is ejected from a spray container in the form of droplets or a mist and applied to the skin. By using the cosmetic of the present invention in this manner, excellent UV protection effects are obtained, the feel upon application is good, and crystal precipitation of the water-insoluble UV absorber that is solid at 25°C is suppressed.

[0031] In relation to the above-described embodiment, the present invention further discloses the following embodiment: <1> A sunscreen cosmetic comprising the following components (A), (B), and (C), in which the mass ratio (A1 / A2) of component (A1) to component (A2) is 3.5 or more and 120 or less, the mass ratio (B / (A1+A2)) of component (B) to the total amount of components (A1) and (A2) is 2.7 or more and 9 or less, and the mass ratio (B1 / A) of component (B1) to component (A) is less than 1. (A) 10% by mass or more and 20% by mass or less of a water-insoluble organic UV absorber that is solid at 25°C, comprising (A1) ethylhexyl triazone and (A2) bisethylhexyloxyphenol methoxytriazine, (B) 12% by mass or more and 40% by mass or less of an oil solution that is liquid at 25°C, comprising (B1) a water-insoluble organic UV absorber that is liquid at 25°C, (C) 48% by mass or more and 78% by mass or less of ethanol. <2> The cosmetic preparation according to <1>, wherein component (A) further contains one or more selected from 4-tert-butyl-4'-methoxydibenzoylmethane, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, drometrizole trisiloxane, and 2-ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate. <3> The cosmetic according to <1> or <2>, wherein the content of component (A1) is preferably from 1.5 to 10% by mass, more preferably from 1.8 to 9% by mass, and even more preferably from 2 to 7% by mass, based on the total amount of the sunscreen cosmetic. <4> The cosmetic according to any one of <1> to <3>, wherein the content of component (A2) is preferably from 0.01 to 1% by mass, more preferably from 0.02 to 0.9% by mass, and even more preferably from 0.05 to 0.8% by mass, based on the total amount of the sunscreen cosmetic. <5> The cosmetic according to any one of <1> to <4>, wherein the mass ratio of component (A1) to component (A2) (A1 / A2) is preferably from 3.6 to less than 100, more preferably from 3.6 to 50, and even more preferably from 3.7 to 10. <6> The cosmetic according to any one of <1> to <5>, wherein the total content of 2-ethylhexyl paramethoxycinnamate, oxybenzone, and octocrylene is 1% by mass or less.<7> The cosmetic preparation according to any one of <1> to <6>, wherein component (B1) is one or more ultraviolet absorbers that are liquid at 25°C and are selected from 2-ethoxyethyl paramethoxycinnamate, a mixture of isopropyl paramethoxycinnamate and diisopropyl cinnamate, bis(trimethylsiloxy)silylisopentyl methyl trimethoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, amyl paradimethylaminobenzoate, 2-ethylhexyl paradimethylaminobenzoate, ethylene glycol salicylate, 2-ethylhexyl salicylate, butyloctyl salicylate, benzyl salicylate, and homomenthyl salicylate. <8> The cosmetic preparation according to any one of <1> to <7>, wherein component (B) is an oil that is liquid at 25°C and contains an ester oil other than component (B1). <9> The cosmetic preparation according to <8>, wherein component (B) further contains one or more oils that are liquid at 25°C and are selected from hydrocarbon oils, ether oils, silicone oils, and fluorinated oils. <10> The cosmetic preparation according to any one of <1> to <9>, wherein the content of component (B) is preferably from 12.5% ​​to 35% by mass, and more preferably from 13% to less than 30% by mass, of the total amount of the sunscreen cosmetic preparation. <11> The cosmetic preparation according to any one of <1> to <10>, wherein the content of component (B1) is preferably from 1% to 8% by mass, more preferably from 2% to 7% by mass, and even more preferably from 3% to 5% by mass, of the total amount of the sunscreen cosmetic preparation. <12> The cosmetic preparation according to any one of <1> to <11>, wherein the mass ratio (B1 / A) of component (B1) to component (A) is preferably less than 1, more preferably 0.7 or less, even more preferably 0.5 or less, preferably 0.1 or more, more preferably 0.2 or more, and even more preferably 0.3 or more. <13> The cosmetic preparation according to any one of <1> to <12>, wherein the mass ratio (B / (A1+A2)) of component (B) to the total amount of component (A1) and component (A2) is preferably 2.7 or more and 8.7 or less, more preferably 2.8 or more and 8.5 or less, and even more preferably 3.0 or more and 8.3 or less. <14> The cosmetic preparation according to any one of <1> to <13>, wherein the mass ratio (B / A) of component (B) to component (A) is preferably 1 or more and 3 or less, more preferably 1 or more and 2.2 or less, and even more preferably 1 or more and 2 or less.<15> The cosmetic preparation according to any one of <1> to <14>, wherein the ethanol content is preferably 49% by mass or more and 77% by mass or less, and more preferably 49.5% by mass or more and 75% by mass or less. <16> The cosmetic preparation according to any one of <1> to <15>, wherein the mass ratio (C / A+B) of component (C) to the total amount of component (A) and component (B) is preferably 0.9 or more and 3.0 or less, and more preferably 1.5 or more and 3.0 or less. <17> The cosmetic preparation according to any one of <1> to <16>, wherein the water content is 10% by mass or less. <18> A sunscreen cosmetic preparation comprising the composition according to any one of <1> to <17> filled into a spray-type container. <19> The cosmetic preparation according to <18>, wherein the spray-type container is an aerosol container or a pump spray container. <20> A sunscreen cosmetic preparation comprising the composition according to any one of <1> to <17> filled into a spray-type container. <21> The sunscreen cosmetic according to <20>, wherein the spray container is an aerosol container or a pump spray container. <22> A method for using the sunscreen cosmetic, comprising spraying the cosmetic according to any one of <18> to <21> in the form of droplets or mist from a spray container and applying it to the skin.

[0032] The present invention will now be described in more detail with reference to examples, but the present invention is not limited to these examples.

[0033] [Production of Sunscreen Cosmetics] All of the ingredients listed in Tables 1 to 3, except for ethanol, were mixed and dissolved by heating at 80°C. Once dissolution was confirmed, the mixture was cooled to room temperature and ethanol was mixed in to obtain a stock solution. The obtained stock solution was filled into a pump spray container to produce a sunscreen cosmetic.

[0034] [Evaluation of Sunscreen Cosmetics] The pump spray sunscreen cosmetics or their concentrates obtained above were evaluated for (1) UV protection effect, (2) effect of inhibiting crystal precipitation of components (A1) and (A2), (3) stickiness, and (4) feel immediately after application. The results obtained are shown in Tables 1 to 3.

[0035] (1) UV protection effect The composition (undiluted solution) was applied at a concentration of 2 mg / cm 2The solution was applied to a PMMA plate and the in vitro SPF was measured using an SPF analyzer. A: In vitro SPF 30 or more B: In vitro SPF 20 or more and less than 30 C: In vitro SPF 10 or more and less than 20 D: In vitro SPF 10 or less

[0036] (2) Crystal precipitation suppression effect The crystal precipitation of the composition (undiluted solution) was evaluated when stored at −5° C. A: No crystal precipitation after 6 months of storage B: No crystal precipitation after 2 weeks of storage C: Slight crystal precipitation after 2 weeks of storage D: Crystal precipitation after 2 weeks of storage

[0037] (3) Stickiness The composition (undiluted) was filled into a pump spray container. Five expert panelists sprayed 0.4 g onto one arm, and the stickiness immediately after application was evaluated based on the following criteria, and the five panelists totaled their scores. 1 point: Sticky 2 points: Slightly sticky 3 points: Not very sticky 4 points: Not sticky at all (Evaluation of total scores) A: Total score is 15 points or more B: Total score is 10 points or more but less than 15 points C: Total score is 5 points or more but less than 10 points D: Total score is less than 5 points

[0038] (4) Cooling sensation The composition (undiluted) was filled into a pump spray container. Five expert panelists sprayed 0.4 g onto one arm, and the cooling sensation immediately after application was evaluated based on the following criteria, and the five panelists gave a total score of 1 point: not cooling at all 2 points: not cooling 3 points: cooling 4 points: very cooling (Evaluation of total score) A: total score of 15 points or more B: total score of 10 points or more but less than 15 points C: total score of 5 points or more but less than 10 points D: total score of less than 5 points

[0039]

[0040]

[0041]

Claims

1. A sunscreen cosmetic comprising the following components (A), (B) and (C), in which the mass ratio (A1 / A2) of component (A1) to component (A2) is 3.5 or more and 120 or less, the mass ratio (B / (A1+A2)) of component (B) to the total amount of components (A1) and (A2) is 2.7 or more and 9 or less, and the mass ratio (B1 / A) of component (B1) to component (A) is less than 1. (A) (A1) 10% by mass or more and 20% by mass or less of a water-insoluble organic ultraviolet absorber that is solid at 25°C, comprising ethylhexyl triazone and bis-ethylhexyloxyphenol methoxytriazine, (B) (B1) 12% by mass or more and 40% by mass or less of an oil agent that is liquid at 25°C, comprising a water-insoluble organic ultraviolet absorber that is liquid at 25°C, (C) 48% by mass or more and 78% by mass or less of ethanol.

2. A sunscreen cosmetic composition according to claim 1, wherein component (B) is an oil agent which is liquid at 25°C and contains an ester oil other than component (B1).

3. A sunscreen cosmetic composition according to claim 2, wherein component (B) further comprises one or more oils which are liquid at 25°C and are selected from the group consisting of hydrocarbon oils, ether oils, silicone oils and fluorine oils.

4. The sunscreen cosmetic according to any one of claims 1 to 3, wherein component (B1) contains one or more ultraviolet absorbers which are liquid at 25°C and are selected from 2-ethoxyethyl paramethoxycinnamate, a mixture of isopropyl paramethoxycinnamate and diisopropyl cinnamate, bis(trimethylsiloxy)silylisopentyl methyl trimethoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, amyl paradimethylaminobenzoate, 2-ethylhexyl paradimethylaminobenzoate, ethylene glycol salicylate, 2-ethylhexyl salicylate, butyloctyl salicylate, benzyl salicylate, and homomenthyl salicylate.

5. A sunscreen cosmetic composition according to any one of claims 1 to 4, wherein the content of component (B) is 12% by mass or more and less than 30% by mass.

6. A sunscreen cosmetic preparation according to any one of claims 1 to 5, wherein component (A) further comprises one or more water-insoluble organic ultraviolet absorbers which are solid at 25°C and are selected from the group consisting of 4-tert-butyl-4'-methoxydibenzoylmethane, 2-(4-diethylamino-2-hydroxybenzoyl)hexyl benzoate, 2-hydroxy-4-methoxybenzophenone, and drometrizole trisiloxane.

7. A sunscreen cosmetic composition according to any one of claims 1 to 6, wherein the water content is 10% by mass or less.

8. A sunscreen cosmetic composition according to any one of claims 1 to 7, wherein the total content of 2-ethylhexyl paramethoxycinnamate, oxybenzone and octocrylene is 1 mass% or less.

9. A sunscreen cosmetic comprising the composition according to any one of claims 1 to 8 filled in a spray-type container.

10. The cosmetic preparation according to claim 9, wherein the spray container is an aerosol container or a pump spray container.

11. A method for using a sunscreen cosmetic, comprising ejecting the cosmetic material according to claim 9 or 10 in the form of droplets or mist from a spray container and applying the cosmetic material to the skin.

Images