Emulsion cosmetic

Abstract

Provided is an emulsion cosmetic which contains a composite powder of titanium oxide and an ultraviolet light absorber, has an excellent ultraviolet light shielding effect, and has a good feeling when used. The emulsified cosmetic contains: a composite powder A of titanium oxide and 4-tert-butyl-4 '-methoxydibenzoylmethane in an amount of 21 mass% or less relative to the total mass of the emulsified cosmetic; zinc oxide B; a UV absorber C other than a composite powder A of titanium oxide and 4-tert-butyl-4 '-methoxydibenzoylmethane, a silicone oil D in an amount of 20-60 mass% with respect to the total mass of the emulsion cosmetic, and an aqueous medium E.

Description

TECHNICAL FIELD

[0001] The present application relates to an emulsified cosmetic. BACKGROUND

[0002] Ultraviolet rays become a cause of photoaging such as wrinkles, sagging, and dullness of the skin, and therefore, in order to improve the ultraviolet ray protection effect, an ultraviolet ray protection agent such as an organic ultraviolet ray absorber, an inorganic ultraviolet ray scattering agent (for example, a metal oxide such as titanium oxide or zinc oxide), or the like is incorporated in a cosmetic.

[0003] In order to obtain a sufficient ultraviolet ray protection effect, it is necessary to use a sufficient amount of an ultraviolet ray protection agent as necessary. However, there are concerns about the influence of an organic ultraviolet ray absorber on the skin, the appearance of the skin made white by an ultraviolet ray scattering agent, and the like, and it is required to balance a sufficient ultraviolet ray protection effect and a use feeling.

[0004] Of ultraviolet rays from sunlight, 99% of ultraviolet rays that reach the ground surface are ultraviolet rays in the UVA region (wavelength 320 nm to 400 nm), and therefore, it is required to incorporate an ultraviolet ray absorber that absorbs ultraviolet rays in the vicinity of the UVA region in a skin external agent such as a cosmetic.

[0005] As one way of incorporating an organic ultraviolet ray absorber into a cosmetic that is suitable for the skin, a composite powder in which an inorganic powder is complexed with an ultraviolet ray absorber that is an organic compound is known, and a composite powder of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane is proposed. 4-tert-Butyl-4'-methoxydibenzoylmethane (also referred to as "avobenzone") is known as an ultraviolet ray absorber that can absorb a wide range of ultraviolet rays in the UVA region.

[0006] As one way of incorporating an organic ultraviolet ray absorber into a cosmetic, a composite powder in which an inorganic powder is complexed with an ultraviolet ray absorber that is an organic compound is known, and a composite powder of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane is proposed. For example, a water-in-oil type skin external agent containing a composite powder of titanium oxide and an ultraviolet ray absorber and a whitening compound is disclosed in Patent Literature 1, and as the ultraviolet ray absorber contained in the composite powder of titanium oxide and an ultraviolet ray absorber, 4-tert-butyl-4'-methoxydibenzoylmethane can be cited.

[0007] Patent Literature 1: Japanese Patent Application Laid-Open No. 2017-031081

[0008] For an emulsified cosmetic having an ultraviolet ray shielding effect, in addition to a high ultraviolet ray shielding effect, it is also desirable that the use feeling when applied to the skin be good.

[0009] A composite powder of titanium oxide and an ultraviolet absorber (hereinafter, also referred to as "composite powder") is excellent in ultraviolet absorption effect, and thus is useful for emulsified cosmetics in which a high ultraviolet shielding effect is desired, and various improvements on formulations incorporating such a composite powder have been proposed as disclosed in Patent Document 1.

[0010] The composite powder described in Patent Document 1 is excellent in ultraviolet shielding effect, but when the content of the composite powder is increased in order to obtain a sufficient ultraviolet shielding effect, the sense of use can sometimes be lowered.

[0011] As a method for obtaining a sufficient ultraviolet shielding effect without increasing the content of the composite powder, it can be considered to use other organic ultraviolet absorbers or inorganic ultraviolet scatterers at the same time, but new problems such as the generation of a sticky feeling when using other organic ultraviolet absorbers, the generation of a rubbing feeling when increasing the content of solid ultraviolet scatterers, and the like can sometimes occur. SUMMARY

[0012] An object of an embodiment of the present application is to provide an emulsified cosmetic containing a composite powder of titanium oxide and an ultraviolet absorber, which is excellent in ultraviolet shielding effect and good in sense of use.

[0013] A specific method for solving the above-described problem includes the following embodiments.

[0014] [1] An emulsified cosmetic containing:

[0015] a composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane in an amount of 21% by mass or less relative to the total mass of the emulsified cosmetic;

[0016] zinc oxide B;

[0017] an ultraviolet absorber C other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane;

[0018] a silicone oil D in an amount of 20% by mass to 60% by mass relative to the total mass of the emulsified cosmetic; and

[0019] an aqueous medium E.

[0020] [2] The emulsified cosmetic according to [1], wherein the content of the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane is 1% by mass to 21% by mass relative to the total mass of the emulsified cosmetic.

[0021] [3] The emulsified cosmetic according to [1] or [2], wherein the content of the zinc oxide B is 1% by mass to 20% by mass relative to the total mass of the emulsified cosmetic.

[0022] [4] The emulsified cosmetic according to any one of [1] to [3], wherein the content of the ultraviolet absorber C other than the composite powder A of the titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane is 1 to 20 mass% with respect to the total mass of the emulsified cosmetic.

[0023] [5] The emulsified cosmetic according to any one of [1] to [4], wherein the ultraviolet absorber C other than the composite powder A of the titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane contains ethylhexyl methoxy cinnamate.

[0024] [6] The emulsified cosmetic according to any one of [1] to [5], further containing an ultraviolet absorber F other than the composite powder A of the titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane and the ultraviolet absorber C, the ultraviolet absorber F being contained in the aqueous medium E.

[0025] [7] The emulsified cosmetic according to any one of [1] to [6], further containing a silicone-based surfactant.

[0026] [8] The emulsified cosmetic according to any one of [1] to [7], which is a sunscreen cosmetic.

[0027] Effects of Invention

[0028] According to an embodiment of the present application, an emulsified cosmetic containing a composite powder of titanium oxide and an ultraviolet absorber is provided, which is excellent in ultraviolet shielding effect and good in use feeling. DETAILED DESCRIPTION

[0029] Hereinafter, one example of an embodiment of the emulsified cosmetic of the present application will be described in detail. The description of the necessary conditions described below is based on a representative embodiment of the present application, but is not limited to this embodiment of the present application, and can be appropriately changed and implemented within the scope of the object of the present application.

[0030] In the present application, a numerical range indicated using "~" means a range including the lower limit value and the upper limit value of the numerical values described before and after the "~".

[0031] In the numerical ranges described in stages in the present application, the upper limit value or the lower limit value described in a certain numerical range can be replaced with the upper limit value or the lower limit value of the numerical range described in another stage. Also, in the numerical ranges described in the present application, the upper limit value or the lower limit value described in a certain numerical range can be replaced with the value shown in the examples.

[0032] In the present application, a combination of two or more preferred modes is a more preferred mode.

[0033] In the present application, in the case where a plurality of substances corresponding to each component are present in the water-in-oil cosmetic, the amount of each component in the water-in-oil cosmetic means the total amount of the plurality of substances present in the emulsified cosmetic, unless otherwise specified.

[0034] As the emulsified cosmetic, there are a water-in-oil emulsified cosmetic and an oil-in-water emulsified cosmetic, which are emulsions each containing an "oil phase" and a "water phase".

[0035] In the present application, the "oil phase" means a continuous phase in a water-in-oil type formulation and a dispersed phase in an oil-in-water type formulation, and includes a liquid medium containing the oil phase and a component dispersed or dissolved in the liquid medium.

[0036] In the present specification, the "water phase" means a dispersed phase in a water-in-oil type formulation and a continuous phase in an oil-in-water type formulation, and includes a liquid medium containing the dispersed phase and a component dispersed or dissolved in the liquid medium.

[0037] In the present application, "good feeling in use" means that the emulsified cosmetic has good spreadability when applied to the skin, and that no tacky feeling is felt in the skin after the application is completed. In addition, in the present application, "tacky" means the feeling after the emulsified cosmetic is applied to the skin, and means the feeling accompanying the adhesion or cohesion between the fingers or the like and the skin to which the emulsified cosmetic is applied.

[0038] In the present application, the meaning of "mass%" is the same as that of "weight%".

[0039] [Emulsified cosmetic]

[0040] The emulsified cosmetic of the present application contains: a composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane in an amount of 21 mass% or less with respect to the total mass of the emulsified cosmetic; zinc oxide B; an ultraviolet absorber C other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane; a silicone oil D in an amount of 20 mass% to 60 mass% with respect to the total mass of the emulsified cosmetic; and an aqueous medium E.

[0041] The emulsified cosmetic of the present application has an excellent ultraviolet shielding effect and a good feeling in use by having the structure described above.

[0042] [Formulation of emulsified cosmetic]

[0043] The emulsified cosmetic of the present application can be an oil-in-water emulsified cosmetic (O / W emulsified cosmetic) or a water-in-oil emulsified cosmetic (W / O emulsified cosmetic), and can be selected according to the purpose of the emulsified cosmetic.

[0044] In particular, from the viewpoint of stabilizing the ultraviolet absorbing component such as the composite powder A, the emulsified cosmetic of the present application is more preferably a water-in-oil emulsified cosmetic (W / O emulsified cosmetic).

[0045] In the case where the emulsified cosmetic of the present application is an oil-in-water emulsion (O / W emulsion) or a water-in-oil emulsion (W / O emulsion), from the viewpoint of the stability of the composite powder A and the use feeling, the ratio of the water phase / oil phase is preferably 20 / 80 to 80 / 20, more preferably 30 / 70 to 70 / 30, on a mass basis.

[0046] Each component contained in the emulsified cosmetic of the present application is described in detail.

[0047] [Composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane (composite powder A)]

[0048] The emulsified cosmetic of the present application contains the composite powder A.

[0049] The composite powder A is a composite powder of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane.

[0050] The emulsified cosmetic of the present application contains 21 mass% or less of the composite powder A relative to the total mass of the emulsified cosmetic. The emulsified cosmetic can contain one kind of the composite powder A alone, or two or more kinds.

[0051] The emulsified cosmetic of the present application can improve the shielding effect of ultraviolet rays (UVA region and / or UVB region) that are harmful to the skin by containing the composite powder A.

[0052] The emulsified cosmetic of the present application can contain one kind of the composite powder A alone, or two or more kinds.

[0053] The titanium oxide constituting the composite powder A is not particularly limited, and can be titanium oxide of any crystal type such as anatase type, rutile type, and brookite type. From the viewpoint of improving the ultraviolet shielding ability, the crystal type of the titanium oxide is preferably the rutile type.

[0054] The titanium oxide can be titanium oxide subjected to surface treatment with inorganic substances such as aluminum hydroxide, silicon oxide, and zirconium oxide, or titanium oxide subjected to surface treatment with fatty acids such as stearic acid, isostearic acid, and lauric acid, or titanium oxide subjected to surface treatment with both inorganic substances and fatty acids. By subjecting the titanium oxide to surface treatment with inorganic substances such as aluminum hydroxide, it is possible to deactivate the titanium oxide. Furthermore, by subjecting the titanium oxide to surface treatment with fatty acids such as stearic acid, it is possible to hydrophobize the surface of the titanium oxide.

[0055] The average primary particle diameter of the titanium oxide is preferably, for example, 1 nm to 90 nm, more preferably 5 nm to 50 nm, from the viewpoint of the ultraviolet shielding ability and the appearance of the emulsified cosmetic becoming good.

[0056] The average primary particle diameter of the titanium oxide is determined as follows: 1000 or more of the particles are photographed using a transmission electron microscope, and the photographed particles are subjected to image processing using an image analysis particle size distribution measuring device, and the value obtained by measuring the circle equivalent diameter is determined. In the case where a commercially available product is used as the titanium oxide, the average primary particle diameter described in the catalog or the like can be directly applied.

[0057] In the composite powder A, the ultraviolet absorber that is complexed with the titanium oxide is 4-tert-butyl-4'-methoxydibenzoylmethane from the viewpoint of the shielding effect of the ultraviolet rays in the vicinity of the UVA region. Hereinafter, 4-tert-butyl-4'-methoxydibenzoylmethane will be appropriately referred to as its alias, avobenzone.

[0058] The composite powder A preferably has a surface treatment layer containing avobenzone on the surface of the titanium oxide. The surface treatment layer is preferably present on the entire surface of the titanium oxide, but a portion where the surface treatment layer is not present can also be present. The bonding mode of the surface of the titanium oxide (in the case where the titanium oxide is surface-treated with at least one of an inorganic substance and a fatty acid, the inorganic substance or the fatty acid disposed on the surface) and avobenzone is not particularly limited as long as it is a mode in which the titanium oxide and avobenzone are integrated, and can be chemical bonding such as covalent bonding, or non-chemical bonding such as adsorption.

[0059] In addition, the presence of avobenzone on the surface of the titanium oxide can be confirmed by measuring the reflectance spectrum of the composite powder A.

[0060] The ratio of the titanium oxide to avobenzone in the composite powder A is not particularly limited. From the viewpoint of the ultraviolet shielding ability, the ratio of the titanium oxide to avobenzone in the composite powder A can be, for example, 0.03 parts by mass to 1 part by mass of avobenzone with respect to 1 part by mass of the titanium oxide.

[0061] The average particle diameter of the composite powder A is preferably less than 1 μm. If the average particle diameter of the composite powder A is less than 1 μm, the coloring of the emulsified cosmetic caused by the composite powder A itself can be suppressed, and the so-called whitening is less likely to occur. From the viewpoint of the ultraviolet shielding effect and the use feeling, the average particle diameter of the composite powder A is more preferably 1 nm to 500 nm, and further preferably 3 nm to 100 nm.

[0062] The average particle diameter of the composite powder A can be measured by the same method as the average primary particle diameter of the titanium oxide.

[0063] As the composite powder A, for example, the composite powder disclosed in International Publication No. 2010 / 098249 can be used. The composite powder A in the present application can also be obtained as a commercial product. As the commercial product of the composite powder A, HXMT-100ZA of TAYCA Co., Ltd. and the like can be given. HXMT-100ZA is a composite powder in which a surface treatment layer containing 4-tert-butyl-4'-methoxydibenzoylmethane is formed on the surface of titanium oxide subjected to surface treatment with aluminum hydroxide and stearic acid.

[0064] The content of the composite powder A in the emulsified cosmetic of the present application is 31% by mass or less relative to the total mass of the emulsified cosmetic.

[0065] The content of the composite powder A is preferably 1% to 21% by mass, and more preferably 3% to 17% by mass relative to the total mass of the emulsified cosmetic from the viewpoints of the ultraviolet shielding effect and the use feeling becoming more favorable.

[0066] 〔Zinc Oxide B〕

[0067] The emulsified cosmetic of the present application contains zinc oxide B.

[0068] The zinc oxide B can function as an ultraviolet scattering agent in the emulsified cosmetic.

[0069] The zinc oxide B preferably has a powder form.

[0070] The average primary particle diameter of the zinc oxide B is not particularly limited, and is preferably 1 nm to 90 nm, and more preferably 5 nm to 50 nm from the viewpoints of the ultraviolet shielding effect and the appearance of the emulsified cosmetic.

[0071] The average primary particle diameter of the zinc oxide B can be measured in the same manner as the measurement method of the average primary particle diameter of the above-described titanium oxide.

[0072] In the case where a commercial product is used as the zinc oxide B, the average primary particle diameter described in the catalog or the like can be directly applied.

[0073] The zinc oxide B can be zinc oxide in which at least a part of the surface of the zinc oxide is subjected to surface treatment. By using zinc oxide in which a part or the entire surface of the zinc oxide is subjected to surface treatment, for example, in the case where the zinc oxide B is contained in the oil phase of the emulsified cosmetic, the affinity with the oil phase sometimes becomes more favorable.

[0074] As the surface-treated zinc oxide B, zinc oxide subjected to surface treatment with a fatty acid, zinc oxide subjected to surface treatment with an alkylalkoxysilane, and the like can be given.

[0075] The fatty acid used for the surface treatment of the zinc oxide B is not particularly limited.

[0076] For example, from the viewpoint of further improving the dispersion stability of zinc oxide B, a fatty acid having 10 to 22 carbon atoms is preferred, a fatty acid having 12 to 20 carbon atoms is more preferred, a fatty acid having 16 to 20 carbon atoms is further preferred, and a fatty acid having 18 carbon atoms, i.e., stearic acid and / or isostearic acid, is particularly preferred.

[0077] In addition, the "fatty acid" described herein includes fatty acids and salts thereof.

[0078] As the salt, for example, a Ca salt, a Mg salt, a Zn salt, and an Al salt can be given.

[0079] The surface treatment of zinc oxide B with a fatty acid can be performed, for example, by mixing and stirring zinc oxide in a fatty acid for a certain period of time.

[0080] The alkylalkoxysilane used for the surface treatment of zinc oxide B is not particularly limited.

[0081] For example, from the viewpoint of dispersion stability, the alkyl group in the alkylalkoxysilane is preferably an alkyl group having 6 to 18 carbon atoms (for example, hexyl, octyl, decyl, and octadecyl).

[0082] For example, from the viewpoint of further improving the dispersion stability of zinc oxide B, the alkoxy group in the alkylalkoxysilane is preferably an alkoxy group having 1 to 3 carbon atoms (for example, methoxy, ethoxy, and propoxy).

[0083] As a specific example of the alkylalkoxysilane used for the surface treatment of zinc oxide B, trimethoxyhexylsilane, trimethyloctylsilane, trimethyidecylsilane, trimethyloctadecylsilane, triethoxyhexylsilane, triethyloctylsilane (cosmetic designation name: triethyloctylsilane), triethyidecylsilane, and triethyloctadecylsilane can be given.

[0084] Among them, triethyloctylsilane is more preferred as the alkylalkoxysilane used for the surface treatment of zinc oxide.

[0085] The surface treatment of zinc oxide B with an alkylalkoxysilane can be performed, for example, by mixing and stirring zinc oxide in an alkylalkoxysilane for a certain period of time.

[0086] The emulsified cosmetic of the present application can contain only one kind of zinc oxide B, or can contain two or more kinds.

[0087] From the viewpoint of bettering the ultraviolet shielding effect and the use feeling, the content of zinc oxide B in the emulsified cosmetic of the present application is preferably 1 to 20 mass%, and more preferably 3 to 15 mass%, relative to the total mass of the emulsified cosmetic.

[0088] Ultraviolet absorber C other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane

[0089] The emulsified cosmetic of the present application contains an ultraviolet absorber C other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane (hereinafter, also referred to as "ultraviolet absorber C").

[0090] The ultraviolet absorber C is preferably an organic compound having an action of absorbing ultraviolet rays.

[0091] The ultraviolet absorber C contained in the emulsified cosmetic of the present application can be an ultraviolet absorber absorbing ultraviolet rays in the UVA region (i.e., wavelength of 320 nm or more and 400 nm or less) (hereinafter, also referred to as UVA absorber), can be an ultraviolet absorber absorbing ultraviolet rays in the UVB region (i.e., wavelength of 280 nm or more and less than 320 nm) (hereinafter, also referred to as UVB absorber), or can be an ultraviolet absorber having both the functions of UVA absorber and UVB absorber.

[0092] The ultraviolet absorber C can be contained singly in the emulsified cosmetic, or can be contained in two or more kinds. As a preferred combination when two or more kinds of other ultraviolet absorber C are contained, a combination of one or more kinds of UVA absorber and one or more kinds of UVB absorber can be given, but is not limited thereto.

[0093] The emulsified cosmetic of the present application can contain, as the ultraviolet absorber C, an organic ultraviolet absorber which can be used in the field of medical supplies or cosmetics. As the organic ultraviolet absorber, various kinds of organic ultraviolet absorbers described in known documents can be given. For example, the compound group described in paragraphs 0018 and 0021 of Japanese Patent No. 6359947 can be used as the organic ultraviolet absorber contained in the emulsified cosmetic of the present application.

[0094] As the organic ultraviolet absorber, a triazine compound, a benzoic acid compound, an anthranilic acid compound, a salicylic acid compound, a cinnamic acid compound, a benzotriazole compound, a dibenzoylmethane compound, a benzophenone compound, a benzimidazole compound, a benzoyl piperazine compound, a dibenzoylmethane compound, a benzoxazole compound, a phenyl acrylate compound, an imidazoline compound, a camphor compound, a benzalmalonate compound, and the like can be given, but are not limited thereto.

[0095] As the ultraviolet absorber C, ethylhexyl methoxy cinnamate as a cinnamic acid compound is preferred from the viewpoint of further improving the solubility of the ultraviolet absorber in the medium and the UVB shielding effect.

[0096] Also, from the viewpoints of a better UVA shielding effect and a better use feeling, diethylaminohydroxybenzoyl hexyl benzoate, which is a benzophenone-based ultraviolet absorber, can be contained.

[0097] The content of the ultraviolet absorber C is preferably 1 to 20 mass% and more preferably 3 to 15 mass% with respect to the total mass of the emulsified cosmetic.

[0098] Ultraviolet absorber F other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane and the ultraviolet absorber C

[0099] The emulsified cosmetic of the present application can further contain an ultraviolet absorber F other than the composite powder A of titanium oxide and 4-tert-butyl-4'-methoxydibenzoylmethane and the ultraviolet absorber C (hereinafter, also referred to as "other ultraviolet absorber F").

[0100] From the viewpoint of a better use feeling, it is preferable that the other ultraviolet absorber F be contained in the aqueous medium E described later. As the other ultraviolet absorber F, Tinosorb M (BASF Corporation), which is an aqueous dispersion of methylenebis-tetrazyl tetramethylbutylphenol, is preferable.

[0101] The ultraviolet absorber F contained in the emulsified cosmetic of the present application can be an ultraviolet absorber that absorbs ultraviolet rays in the UVA region (i.e., a wavelength of 320 nm or more and less than 400 nm) (hereinafter, also referred to as a UVA absorber), an ultraviolet absorber that absorbs ultraviolet rays in the UVB region (i.e., a wavelength of 280 nm or more and less than 320 nm) (hereinafter, also referred to as a UVB absorber), or an ultraviolet absorber having both the functions of a UVA absorber and a UVB absorber.

[0102] In the case where the emulsified cosmetic contains the other ultraviolet absorber F, the other ultraviolet absorber F can be contained singly in one kind or two or more kinds. As a preferable combination when two or more kinds of the other ultraviolet absorber F are contained, a combination of one or more kinds of a UVA absorber and one or more kinds of a UVB absorber can be given, but is not limited thereto.

[0103] The content of the other ultraviolet absorber F is preferably 1 to 20 mass% and more preferably 3 to 15 mass% with respect to the total mass of the emulsified cosmetic.

[0104] In the emulsified cosmetic of the present application, from the viewpoint of a better balance between the ultraviolet shielding effect and the use feeling, the total content of the ultraviolet absorbers, i.e., the total content of the composite powder A, the ultraviolet absorber C, and the other ultraviolet absorber F is preferably 1 to 30 mass% and more preferably 3 to 15 mass%.

[0105] Silicone oil D

[0106] The silicone oil D is contained in an amount of 20 to 60 mass% relative to the total mass of the emulsified cosmetic of the present application.

[0107] As the silicone oil D contained in the emulsified cosmetic, linear or branched polysiloxanes such as trisiloxane, methyl trimethicone, dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, methylhydrogenpolysiloxane, diphenylsiloxyphenyltrimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetramethyltetrahydrocyclotetrasiloxane, and octylpolymethylsiloxane can be mentioned. Among these, dimethylpolysiloxane (dimethicone) or decamethylcyclopentasiloxane is preferable as the silicone oil D.

[0108] The silicone oil can be obtained as a commercial product, and as the commercial product of the silicone oil D in the present application, KF-96L-0.65cs, KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96L-5cs, KF-96A-6cs, KF-96-10cs, KF-96-20cs, KF-995, KF-56A (all of which are products of Shin-Etsu Chemical Co., Ltd.), SH200 C Fluid 1CS, SH200 Fluid 1.5CS, SH200 C 2CS, SH200 C Fluid 5CS, SH200 C Fluid 6CS, SH200 C Fluid 10CS, SH200 C Fluid 20CS, 2-1184 Fluid, SH245 Fluid, DC246 Fluid, DC345 Fluid, SS-3408 (all of which are products of Dow Corning Toray Co., Ltd.), TSF404, TSF405, TSF4045 (all of which are products of Momentive Performance Materials Inc.), and the like can be mentioned.

[0109] The emulsified cosmetic of the present application can contain only one kind of silicone oil D, or can contain two or more kinds.

[0110] The content of the silicone oil D in the emulsified cosmetic of the present application is 20 to 60 mass% relative to the total mass, and from the viewpoint of improved use feeling, it is more preferably 25 to 35 mass% relative to the total mass of the emulsified cosmetic.

[0111] When the content of the silicone oil D in the water-in-oil cosmetic of the present application is within the above range, the ultraviolet absorbing agent is contained in an amount in which an effective ultraviolet shielding effect can be obtained, and there is a tendency to obtain a good use feeling.

[0112] [Water-based medium E]

[0113] The emulsified cosmetic of the present application contains the water-based medium E.

[0114] As the water-based medium E, water, a mixture of water and a water-soluble monovalent alcohol such as ethanol, a mixture of water and a water-soluble polyhydric alcohol such as glycerin, and the like can be given.

[0115] In the present application, water-soluble means a substance that can be dissolved in at least 0.1 mass% in pure water at a liquid temperature of 25°C.

[0116] The water used in the water-based medium E is not particularly limited as long as it is water that can be used in cosmetics.

[0117] As specific examples of the water, natural water, purified water, distilled water, ion-exchange water, pure water, and ultrapure water (for example, Milli-Q water) can be given.

[0118] As the water, for example, from the viewpoint of having few impurities, purified water, distilled water, ion-exchange water, pure water, or ultrapure water is preferred.

[0119] As the water-soluble monovalent alcohol used in the water-based medium E, ethanol can be given.

[0120] As the water-soluble polyhydric alcohol used in the water-based medium E, glycerin, polyglycerin, ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butanediol (also referred to as "BG"), 1,2-pentanediol, 1,2-hexanediol, polyethylene glycol, glucose, galactose, sucrose, sorbitol, maltitol, erythritol, xylitol, trehalose, and the like can be given.

[0121] Among them, from the viewpoint of making the use feeling of the emulsified cosmetic even better, 1,3-butanediol is preferred.

[0122] By containing a polyhydric alcohol in the water-based medium E, there is a tendency for the moisturizing feeling in the emulsified cosmetic to be further improved and for the use feeling to be made even better.

[0123] In the case where the water-based medium E in the emulsified cosmetic of the present application contains a polyhydric alcohol, it can contain only one kind of polyhydric alcohol, or it can contain two or more kinds.

[0124] The content of the water-based medium E in the emulsified cosmetic of the present application is not particularly limited, and for example, relative to the total mass of the emulsified cosmetic, it is preferably 10 mass% to 45 mass%, preferably 15 mass% to 40 mass%, and further preferably 20 mass% to 35 mass%.

[0125] 〔Other components〕

[0126] The emulsified cosmetic of the present application can further contain other components used in cosmetics, in addition to the composite powder A, the zinc oxide B, the ultraviolet absorber C, the silicone oil D, and the aqueous medium E, within a range not impairing the effects.

[0127] As the other components, there can be mentioned surfactants such as silicone-based surfactants, oil agents other than the silicone oil D, silicone gels, organic or inorganic particles as a use-feeling adjuster, effective components contained in cosmetics according to the purpose, additive components such as coloring pigments (hereinafter, also simply referred to as "additive components"), and the like.

[0128] - Silicone-based surfactants -

[0129] The emulsified cosmetic of the present application can further contain a silicone-based surfactant.

[0130] By the emulsified cosmetic further containing a silicone-based surfactant, the emulsification stability of the emulsified cosmetic becomes more excellent.

[0131] As the silicone-based surfactant, there is no particular limitation as long as it can be used in the field of pharmaceuticals, quasi-pharmaceuticals, or cosmetics.

[0132] As the silicone-based surfactant, there can be mentioned, for example, polyether-modified silicone-based surfactants, polyether-alkyl co-modified silicone-based surfactants, polyglycerin-modified silicone-based surfactants, or polyglycerin-alkyl co-modified silicone-based surfactants.

[0133] As the silicone-based surfactant, specifically, there can be mentioned polyether-modified silicone-based surfactants such as PEG-10 dimethicone, PEG-3 dimethicone, PEG-12 dimethicone, PEG / PPG-19 / 19 dimethicone, silicone 13, PEG-9 dimethiconyl polydimethylsiloxane, and the like;

[0134] polyether-alkyl co-modified silicone-based surfactants such as lauryl PEG-9 dimethiconyl polydimethylsiloxane, and the like; polyglycerin-modified silicone-based surfactants such as bis-PEG / PPG-20 / 20 dimethicone polyglyceryl-3, polyglyceryl-3 dimethiconyl polydimethylsiloxane, polyglyceryl-3 disiloxane dimethicone, and the like; and

[0135] polyglycerin-alkyl co-modified silicone-based surfactants such as lauryl polyglyceryl-3 dimethiconyl polydimethylsiloxane, and the like.

[0136] Among the above-mentioned silicone-based surfactants, a polyether-modified silicone surfactant having a silicone chain branch is preferable from the viewpoint of uniformity of the oil phase in the emulsified cosmetic of the present application.

[0137] The polyether-modified silicone surfactant having a silicone chain branch refers to a polyether-modified silicone surfactant having a structure in which one or more than two silicone-bonded chains branch from a silicone-bonded chain constituting the main chain of the polyether-modified silicone surfactant.

[0138] As the polyether-modified silicone-based surfactant having a silicone chain branch, for example, PEG-10 polydimethylsiloxane, PEG-3 polydimethylsiloxane, PEG-12 polydimethylsiloxane, PEG / PPG-19 / 19 polydimethylsiloxane, polysilicone 13, PEG-9 polydimethylsiloxyle polydimethylsiloxane, methyl polysiloxane • cetyl methyl polysiloxane • poly(oxyethylene • oxypropylene) methyl polysiloxane copolymer, lauryl PEG-9 polydimethylsiloxyle polydimethylsiloxane, bis-butyl polydimethylsiloxane polyglyceryl-3, polyglyceryl-3 polydimethylsiloxyle polydimethylsiloxane, polyglyceryl-3 disiloxane polydimethylsiloxane, and lauryl polyglyceryl-3 polydimethylsiloxyle polydimethylsiloxane are exemplified, with PEG-9 polydimethylsiloxyle polydimethylsiloxane being preferable.

[0139] The silicone-based surfactant can be a commercially available product or a synthetic product.

[0140] The silicone-based surfactant is not particularly limited, and examples thereof include KF-6017 (Shin-Etsu Chemical Co., Ltd.), KF-6019 (Shin-Etsu Chemical Co., Ltd.), KF-6015 (Shin-Etsu Chemical Co., Ltd.), SH3772M (Dow Corning Toray Co., Ltd.), SH3775M (Dow Corning Toray Co., Ltd.), BY-11-030 (Dow Corning Toray Co., Ltd.), KF-6004 (Shin-Etsu Chemical Co., Ltd.), KF-6011 (Shin-Etsu Chemical Co., Ltd.), FZ-2222, FZ-2233, KF-6028 (Shin-Etsu Chemical Co., Ltd.), ABIL EM90 (manufactured by Goldschmidt), KF-6048 (Shin-Etsu Chemical Co., Ltd.), KF-6038 (Shin-Etsu Chemical Co., Ltd.), KF-6104, KF 6106 (Shin-Etsu Chemical Co., Ltd.), KF-6100 (Shin-Etsu Chemical Co., Ltd.), KF-6105 (Shin-Etsu Chemical Co., Ltd.), and the like.

[0141] The silicone-based surfactant can be contained alone or in combination with two or more kinds.

[0142] The content of the silicone-based surfactant is preferably 0.1% by mass or more, preferably 0.1% to 15% by mass, and more preferably 1.0% to 10% by mass, relative to the total mass of the emulsified cosmetic, from the viewpoint of uniformity of the oil phase.

[0143] - Other surfactants -

[0144] The emulsified cosmetic of the present application can contain a surfactant other than the silicone-based surfactant (also referred to as "other surfactant").

[0145] The other surfactant can be any one of an ionic surfactant and a nonionic surfactant.

[0146] As the ionic surfactant, for example, an alkyl sulfonate, an alkyl sulfate, a monoalkyl phosphate, and lecithin can be given.

[0147] As the nonionic surfactant, for example, a sorbitan fatty acid ester, a glycerin fatty acid ester, an organic acid monoglyceride, a polyglycerin fatty acid ester, a propylene glycol fatty acid ester, a polyglycerin condensed ricinoleic acid ester, a sucrose fatty acid ester, a polyethylene glycol fatty acid ester, a polyoxyethylene alkyl ether, a polyoxypropylene alkyl ether, a polyoxyethylene alkyl phenyl ether, a polyoxyethylene fatty acid ester, a polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene glycerin fatty acid ester, a polyoxyethylene propylene glycol fatty acid ester, a polyoxyethylene castor oil, and a polyoxyethylene hydrogenated castor oil can be given.

[0148] As the other surfactant, from the viewpoint of emulsion stability, a sorbitan fatty acid ester is preferred.

[0149] The water-in-oil cosmetic of the present application can contain only one kind of other surfactant, or can contain two or more kinds of other surfactants, in the case where it contains other surfactants.

[0150] In the case where the emulsified cosmetic of the present application contains other surfactants, the content of the other surfactants in the emulsified cosmetic is not particularly limited. As the content of the other surfactants, for example, it is preferably 0.01 to 5 mass%, more preferably 0.05 to 3 mass%, and further preferably 0.1 to 2 mass%, relative to the total mass of the emulsified cosmetic.

[0151] - Oil agent other than silicone oil D -

[0152] The emulsified cosmetic of the present application can contain an oil agent other than silicone oil D (also referred to as other oil agent). In the case where it is configured as an emulsified product, the oil agent is a component that becomes a solvent or a dispersion medium in a composition that forms an oil phase. As the oil agent, it is not particularly limited as long as it is liquid at room temperature (25°C).

[0153] As the other oil agent, an ester oil, a hydrocarbon oil, and the like can be given.

[0154] The emulsified cosmetic can contain only one kind of other oil agent, or can contain two or more kinds of other oil agents.

[0155] As the ester oil, pentaerythritol tetraethylhexanoate, cetyl alcohol ethylhexanoate, jojoba oil, di(phytosteryl / octyldodecyl) lauroyl glutamate, triisostearin, glycerin diisostearate, triethyl hexanoin, dipolydiolinic acid (phytosteryl / behenyl) ester, dipolydiolinic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) ester, isopropyl palmitate, macadamia fatty acid phytosteryl ester, pentaerythritol tetra(behenic acid / benzoic acid / ethylhexanoic acid) ester, ethylhexyl palmitate, myristyl myristate, tripropyleneglycol dineopentanoate, isotridecyl isononanoate, and the like can be given.

[0156] The hydrocarbon oil can be either of a straight chain and a branched chain. As the hydrocarbon oil, isodecane, isododecane, isohexadecane, and the like isomeric alkanes (isoparaffins) having 8 to 16 carbon atoms, and the like can be given.

[0157] The content of the oil agent in the emulsified cosmetic is preferably, for example, 5% by mass or more and 80% by mass or less, more preferably 10% by mass or more and 80% by mass or less, and further preferably 20% by mass or more and 60% by mass or less, relative to the total mass of the emulsified cosmetic, with respect to the total mass of the oil phase other than the composite powder A.

[0158] In the case where the emulsified cosmetic of the present application is a water-in-oil type emulsified cosmetic, it is preferable to contain 50% by mass or more of the silicone oil D relative to the total mass of the oil phase other than the composite powder A. If the content of the silicone oil D in the oil phase other than the composite powder A of the emulsified cosmetic is 50% by mass or more, the water resistance and the use feeling (refreshing feeling) of the emulsified cosmetic have a tendency to improve.

[0159] In addition, the total content of the silicone oil D and other oil agents is the content of the oil agent included together with the silicone gel when a commercially available product of the silicone gel described later is used in the production of the emulsified cosmetic of the present application.

[0160] Silicone Gel

[0161] From the viewpoint of emulsion stability and the like, the emulsified cosmetic of the present application can contain a silicone gel.

[0162] In the present application, the silicone gel refers to a silicone crosslinked product in which silicone chains constituting the main chain skeleton are crosslinked to each other by a polyether chain, a polyglycerol chain, a silicone chain, or the like.

[0163] Depending on the structure of the chain used in the crosslinking, there are a polyether-modified silicone gel, a polyglycerol-modified silicone gel, a polyether-alkyl co-modified silicone gel, a polyglycerol-alkyl co-modified silicone gel, and the like. These can be used without any limitation in the emulsified cosmetic of the present application.

[0164] As the silicone gel, specifically, (dimethicone / (PEG-10 / 15) crosspolymer, (PEG-15 / lauryl dimethicone) crosspolymer, (PEG-10 / lauryl dimethicone) crosspolymer, (PEG-15 / lauryl dimethicone methicone) crosspolymer, (dimethicone / polyglyceryl-3) crosspolymer, (lauryl dimethicone / polyglyceryl-3) crosspolymer, (polyglyceryl-3 / lauryl dimethicone methicone) crosspolymer, (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenyl vinyl dimethicone) crosspolymer, (vinyl dimethicone / lauryl dimethicone) crosspolymer, (lauryl dimethicone methicone / divinyl dimethicone) crosspolymer, and the like can be mentioned.

[0165] As the commercially available product of the silicone gel, KSG-210, KSG-240, KSG-310, KSG-320, KSG-330, KSG-340, KSG-320Z, KSG-350Z, KSG-360Z, KSG-380Z, KSG-710, KSG-810, KSG-820, KSG-830, KSG-840, KSG-820Z, KSG-850Z, KSG-15, KSG-1510, KSG-16, KSG-1610, KSG-18A, KSG-19, KSG-016F, KSG-41A, KSG-42A, KSG-43A, KSG-44A, KSG-042Z, KSG-045Z, KSG-048Z (all of which are products of Shin-Etsu Chemical Co., Ltd.), and the like can be mentioned.

[0166] In the silicone gel, from the viewpoints of easiness of availability, swellability to oil agents such as silicone oil D, and emulsion stability, it is preferable that at least one selected from the group consisting of (dimethicone / (PEG-10 / 15) crosspolymer and (dimethicone / vinyl dimethicone) crosspolymer be used, and more preferably (dimethicone / (PEG-10 / 15) crosspolymer and (dimethicone / vinyl dimethicone) crosspolymer be used at the same time.

[0167] When the silicone gel is contained in the emulsified cosmetic, the content of the silicone gel in the emulsified cosmetic is, for example, preferably 0.1% by mass to 8% by mass, more preferably 0.25% by mass to 4.5% by mass, and further preferably 0.5% by mass to 3% by mass, with respect to the total mass of the emulsified cosmetic.

[0168] The emulsified cosmetic can contain one silicone gel alone, or two or more silicone gels. In the case of containing two or more silicone gels, the above-mentioned content is the total content of the two or more silicone gels.

[0169] [Particle having a particle diameter of 5 μm to 50 μm]

[0170] The emulsified cosmetic of the present application preferably contains a particle having a particle diameter of 5 μm to 50 μm. By containing a particle having a particle diameter of 5 μm to 50 μm, the stickiness of the application surface of the emulsified cosmetic can be effectively suppressed. The particle can be an inorganic particle, or a resin particle (organic particle).

[0171] In the present application, the particle diameter of the particle refers to a value obtained by photographing 1000 or more using a transmission electron microscope, image processing each of the photographed particles using an image analysis type particle size distribution measuring device, and measuring the circle equivalent diameter. In the case of using a commercially available product, the average particle diameter described in the catalog or the like can be directly applied.

[0172] The form of the particle can also be a spherical shape, a plate shape, a cubic shape, or the like in the dry state, and a particle maintaining such a clear three-dimensional structure can be preferably used as the specific particle.

[0173] The particle diameter of the particle is preferably 5 μm to 50 μm, more preferably 10 μm to 50 μm, and further preferably 10 μm to 45 μm. By having a particle diameter of 5 μm or more, there is a tendency to improve the suppression effect of stickiness and to obtain a good tactile sensation. Also, by having a particle diameter of 50 μm or less, the particle can be suppressed from falling off from the coating film of the emulsified cosmetic, being significantly protruded, and the like, and there is a tendency for the tactile sensation to be further improved.

[0174] The particle can be an inorganic particle, or a resin particle, and any of the particles can be used to obtain a good tactile sensation in which the stickiness is suppressed on the application surface of the emulsified cosmetic. On the other hand, from the viewpoint of obtaining a light use feeling, the particle is preferably a resin particle.

[0175] As examples of the resin particle, particles containing a resin or a high molecule such as nylon, polyethylene, polypropylene, melamine, polyphenylene sulfide, polyether sulfone, polyamide imide, polylactic acid, ethyl cellulose, polydimethylsiloxane (silicone), polydimethylsiloxane alcohol, vinyl polydimethylsiloxane, silsesquioxane, polyethylene oxide, or a crosslinked polymer thereof, an acrylate-based crosslinked polymer, collagen, and the like can be given, and from the viewpoint of suppressing stickiness, a particle containing an acrylate-based crosslinked polymer is preferable.

[0176] In the present application, the acrylate-based crosslinked polymer refers to a crosslinked polymer containing a structural unit derived from an acrylate and / or a methacrylate.

[0177] As the acrylate cross-linked polymer, there can be mentioned methyl methacrylate cross-linked polymer, (methyl methacrylate / ethylene glycol dimethacrylate) cross-linked polymer, (butyl acrylate / ethylene glycol dimethacrylate) cross-linked polymer, (acrylic acid / VP) cross-linked polymer, (acrylic acid / choline glycol phosphate acrylate) cross-linked polymer, (acrylic acid Na / acryloyl dimethyl taurate / dimethyl acrylamide) cross-linked polymer, (butyl acrylate / isopropyl acrylamide / PEG-18 dimethacrylate) cross-linked polymer, (acrylate / alkyl acrylate (C10-30)) cross-linked polymer, (acrylate / alkyl acrylate (C10-30)) cross-linked polymer K, (acrylate / alkyl acrylate (C10-30)) cross-linked polymer Na, (acrylate / ethylhexyl acrylate) cross-linked polymer, (acrylate / ethylhexyl acrylate / glycidyl methacrylate) cross-linked polymer, (acrylate / vinyl isodecanoate) cross-linked polymer, (acrylate / vinyl isodecanoate) cross-linked polymer Na, (acrylate / PEG-4 dimethacrylate) cross-linked polymer, (acrylate / vinyl neodecanoate) cross-linked polymer, (acrylate / alkyl methacrylate (C12, 13) / methoxyethyl acrylate) cross-linked polymer, (acrylate / stearyl methacrylate-20) cross-linked polymer, (acrylate / cetyl methacrylate-20) cross-linked polymer, (acrylate / trimethylsiloxy propyl methacrylate) cross-linked polymer, (acrylate / behenyl polyether-25 methacrylate) cross-linked polymer Na, (acrylate / methoxy methacrylate PEG-90) cross-linked polymer,

[0178] (Acryloyldimethyltaurate Na / VP) Crosspolymer, (Acryloyldimethyltaurate Na / Diaerylate PEG-8) Crosspolymer, (Acryloyldimethyltaurate Ammonium / Carboxyethylammonium Acrylate) Crosspolymer, (Acryloyldimethyltaurate Ammonium / Stearyl Alcohol Methacrylate-25) Crosspolymer, (Acryloyldimethyltaurate Ammonium / Behenyl Alcohol Polyoxet-25 Methacrylate) Crosspolymer, (Dimethylpropanediol Dimethacrylate / Ethylene Glycol Dimethacrylate) Crosspolymer, (Styrene / Acrylate / Polydimethylsiloxane Acrylate) Crosspolymer, (Styrene / Stearyl Methacrylate) Crosspolymer, (Polyurethane-24 / Methacrylate Methyl) Crosspolymer, (Diethylaminoethyl Methacrylate / HEMA / Perfluorohexylethyl Methacrylate) Crosspolymer, (Stearyl Methacrylate / Lauryl Methacrylate) Crosspolymer, (Methacrylate Methyl / Methacrylate PEG / PPG-4 / 3) Crosspolymer, (Lauryl Methacrylate / Ethylene Glycol Dimethacrylate) Crosspolymer, (Lauryl Methacrylate / Methacrylate Na) Crosspolymer, Acrylate Na Crosspolymer, Lauryl Acrylate Crosspolymer, Acrylate Crosspolymer, Acrylate Crosspolymer-2-Na, Acrylate Crosspolymer-3, Acrylate Crosspolymer-4, Acrylate Polyacrylate Crosspolymer-9-AMP, Acrylate Crosspolymer K, Ethylene Glycol Dimethacrylate Crosspolymer, Polyacrylate-1 Crosspolymer, Polyacrylate-2 Crosspolymer, Polyacrylate Crosspolymer-1-Na, Polyacrylate Crosspolymer-10, Polyacrylate Crosspolymer-11, Polyacrylate Crosspolymer-14, Polyacrylate Crosspolymer-3, Polyacrylate Crosspolymer-5, Polyacrylate Crosspolymer-6, Allyl Methacrylate Crosspolymer, Propyltriacryloxysilane Methacrylate Crosspolymer, and the like.

[0179] The substance containing the above-described acrylate crosslinking polymer and adopting a particle form can be preferably used as the resin particle in the present application.

[0180] In addition, in the above-described examples of the acrylate crosslinking polymer, "VP" indicates "vinyl pyrrolidone", "HEMA" indicates "hydroxyethyl methacrylate", and "AMP" indicates "aminomethyl propanol".

[0181] The resin particle can contain only one acrylate crosslinking polymer, or can contain two or more.

[0182] Further, as the inorganic particle, there can be mentioned a silica particle, a porous silica particle, zinc oxide, mica, kaolin, bentonite, calcium carbonate, talc, and the like.

[0183] As the silica particles, there can be mentioned silica, silanized silica, dimethylsilanized silica, polydimethylsiloxane silica, and the like.

[0184] As commercially available products of the particles which can be used as the sensate, there can be mentioned Matsumoto Microsphere (registered trademark, the same hereinafter) S-100 (Matsumoto Yushi-Seiyaku Co., Ltd., acrylate cross-linked polymer particles, 20 μm), Matsumoto Microsphere S-102 (Matsumoto Yushi Seiyaku Co., Ltd., acrylate cross-linked polymer particles, 20 μm), Matsumoto Microsphere M (Matsumoto Yushi Seiyaku Co., Ltd., acrylate cross-linked polymer particles, 15 μm), Matsumoto Microsphere M-305 (Matsumoto Yushi Seiyaku Co., Ltd., acrylate cross-linked polymer particles, 15 μm), Techpolymer ACX-1502C (Sekisui Chemical Co., Ltd., particle diameter 15 μm), Techpolymer ACX-2502 (Sekisui Chemical Co., Ltd.), and SILICA MICRO BEAD (Nippon Chemical Industry Co., Ltd., silica particles, particle diameter: 5 μm), and the like.

[0185] In the case where the emulsified cosmetic contains the particles, from the viewpoint of coexisting skin affinity, inhibition of stickiness, and ultraviolet shielding effect, the content of the particles is preferably 0.5 to 5.0% by mass, more preferably 0.5 to 4.0% by mass, relative to the total mass of the emulsified cosmetic.

[0186] - Additive Ingredient -

[0187] As the additive ingredient, for example, there can be mentioned a functional ingredient which shows an effective cosmetic effect (moisturizing effect, whitening effect, skin tightening effect, and the like) when used in a cosmetic (so-called cosmetic and pharmaceutical cosmetic).

[0188] As such a functional ingredient, mention can be made of ascorbic acid derivatives such as L-ascorbyl palmitate, magnesium ascorbyl phosphate; carotenoids such as beta-carotene, astaxanthin, zeaxanthin, lycopene, and lutein; vitamin E such as tocopherol and tocotrienol; retinol derivatives such as retinol palmitate; ubiquinones such as coenzyme Q10; glycosylceramides, galactosylceramides, and other sphingolipids; collagen such as hydrolyzed collagen and water-soluble collagen; amino acids such as acetyl hydroxyproline; hydrolyzed lupin protein; nicotinamide; extract of Uncaria gambier; extract of Radix Ophiopogonis; dipotassium glycyrrhizinate (also referred to as "glycyrrhizinate 2K"); and the like.

[0189] As an additive ingredient other than the above, mention can be made of fatty acids, lipophilic thickeners, water-soluble organic solvents (ethanol and the like), preservatives (phenoxyethanol, methyl paraben, and the like), pH adjustors (sodium hydroxide, potassium hydroxide, hydrochloric acid, and the like), emollients, humectants, antioxidants (sodium citrate and the like), stabilizers (magnesium sulfate and the like), colorants, fragrances, and the like.

[0190] These additive ingredients can be ingredients having two or more functions in one ingredient.

[0191] The emulsified cosmetic of the present application can contain a coloring pigment. As the coloring pigment, there is no particular limitation, and a coloring pigment that can be used in a cosmetic can be appropriately selected and used according to the hue desired for the emulsified cosmetic.

[0192] As inorganic pigments, mention can be made of, for example, iron oxide (red), iron oxide (yellow), and the like, and as organic pigments, mention can be made of, for example, commercial product DK D&C RED No. 7 (manufactured by DAITO KASEI CO., LTD.) and the like.

[0193] The type and content of the coloring pigment can be appropriately selected and used according to the hue desired for the emulsified cosmetic.

[0194] In the case where the emulsified cosmetic of the present application contains other ingredients, it can contain only one other ingredient, or two or more other ingredients.

[0195] In the case where the emulsified cosmetic of the present application contains other ingredients, the content of the other ingredients is not particularly limited, and can be appropriately set according to the purpose.

[0196] < Form of preparation >

[0197] The emulsified cosmetic of the present application can be a water-in-oil type emulsified cosmetic, or an oil-in-water type emulsified cosmetic.

[0198] From the viewpoint of ultraviolet shielding effect and better use feeling, a water-in-oil type emulsified cosmetic is preferred.

[0199] The dosage form of the emulsified cosmetic of the present application is not particularly limited, and examples thereof include creams, lotions, gels, sticks, and the like.

[0200] <Usage>

[0201] The usage of the emulsified cosmetic of the present application is not particularly limited.

[0202] The emulsified cosmetic of the present application is preferably used as a skin care cosmetic, a sunscreen cosmetic, a makeup cosmetic (e.g., a base makeup), or the like.

[0203] The emulsified cosmetic of the present application is suitable as a sunscreen cosmetic, because it contains the composite powder A and the ultraviolet absorber C, and has both a good ultraviolet shielding effect and a good use feeling.

[0204] <Manufacturing method of emulsified cosmetic>

[0205] The manufacturing method of the emulsified cosmetic of the present application is not particularly limited.

[0206] The emulsified cosmetic of the present application can be manufactured according to a publicly known manufacturing method of an emulsified cosmetic. Hereinafter, an example of the manufacturing method of the emulsified cosmetic of the present application will be described when the emulsified cosmetic of the present application is a water-in-oil emulsified cosmetic, but the manufacturing method of the emulsified cosmetic of the present application is not limited to the following.

[0207] In the case where the emulsified cosmetic of the present application is a water-in-oil emulsified cosmetic, for example, it can be manufactured by mixing and stirring an oil phase composition containing oil phase components and an aqueous phase composition containing aqueous phase components.

[0208] For example, in the case where the composite powder A and the zinc oxide B are incorporated into the oil phase, an oil phase composition containing the composite powder A, the zinc oxide B, and other oil phase components (e.g., the silicone oil D, the silicone-based surfactant, and other arbitrary components) can be prepared, and the obtained oil phase composition and the aqueous phase composition can be mixed to manufacture a water-in-oil emulsified cosmetic.

[0209] The aqueous phase composition can be obtained, for example, by stirring and mixing an aqueous medium E containing water and ethanol and other aqueous phase components (e.g., a polyol and other arbitrary components).

[0210] The emulsification method when the water-in-oil emulsified cosmetic is obtained by mixing the oil phase composition and the aqueous phase composition is not particularly limited, and can be performed according to a conventional method.

[0211] When the oil phase composition and the aqueous phase composition are mixed, the oil phase composition and the aqueous phase composition can be mixed at once, or the mixing can be performed while one of them is added little by little to the other.

[0212] The mixing method is not particularly limited.

[0213] As the mixing method, for example, a method of mixing by stirring can be given.

[0214] A general stirring device can be used for the stirring.

[0215] The emulsification treatment method is not particularly limited.

[0216] As the emulsification treatment method, for example, a method of emulsifying by stirring can be given.

[0217] In the emulsification treatment based on stirring, a general emulsification device can be used.

[0218] As the emulsification device, for example, a homogenizer and a homomixer can be given.

[0219] The conditions of the emulsification treatment are not particularly limited, and can be appropriately set according to the kind of the emulsification device, the composition and the amount of the oil phase composition and the water phase composition, and the like.

[0220] The obtained emulsified cosmetic of the present application is excellent in the ultraviolet shielding effect and the use feeling, and can be preferably used as various cosmetics, particularly, a sunscreen cosmetic.

[0221] Examples

[0222] Hereinafter, the water-in-oil type cosmetic of the present application will be further specifically described by way of examples. However, the water-in-oil type cosmetic of the present application is not limited to the following examples as long as it does not deviate from the gist thereof.

[0223] In addition, in the following examples, "%" is "mass %" unless otherwise specified.

[0224] The emulsified cosmetic of each of the examples shown below can be preferably used as a sunscreen cosmetic.

[0225] [Preparation of emulsified cosmetic]

[0226] [Example 1]

[0227] An emulsified cosmetic was prepared in the following manner in accordance with the formulation described in Table 1, such that the total amount of each component became 100 mass %.

[0228] (Preparation of oil phase component)

[0229] Ethylhexyl methoxycinnamate (trade name: Uvinul MC80N, manufactured by BASF Corporation: ultraviolet absorber C) and diethylamino hydroxybenzoyl hexyl benzoate (trade name: Uvinul A Plus Granular, manufactured by BASF Corporation: ultraviolet absorber C) were warmed to 80°C to be dissolved.

[0230] In the obtained solution, cyclopentasiloxane (trade name: KF-995, Shin-Etsu Chemical Co., Ltd.: silicone oil D), avobenzone composite titanium oxide (trade name: HXMT-100ZA, TAYCA Co., Ltd.: composite powder A), triethoxycaprylylsilane-treated zinc oxide (trade name: MZX-508OTS, average primary particle diameter: 25 nm, manufactured by TAYCA Co., Ltd., zinc oxide B), and PEG-9 dimethicone copolyol (trade name: KF-6028, Shin-Etsu Chemical Co., Ltd.: silicone-based surfactant) were sufficiently mixed with a disperser at room temperature (25°C, the same below).

[0231] After that, further, dimethicone (trade name: KF-96A-5cs, Shin-Etsu Chemical Co., Ltd.: silicone oil D), (dimethicone / vinyl dimethicone) crosslinked polymer (trade name: KSG-16, Shin-Etsu Chemical Co., Ltd.), and (dimethicone / (PEG-10 / 15) crosslinked polymer (trade name: KSG-210, Shin-Etsu Chemical Co., Ltd.), (butyl acrylate / ethylene glycol dimethacrylate) crosslinked polymer (trade name: Matsumoto Micro Sphere S-100, particle diameter: 15 μm, Matsumoto Yushi-Seiyaku Co., Ltd.), sorbitan sesquioleate (trade name: NIKKOL SO-15V, Nikko Chemicals Co., Ltd.), diphenylsiloxyphenyl trimethylsiloxy silane (trade name: KF-56A, Shin-Etsu Chemical Co., Ltd.), trimethylsiloxysilylaminocarbamoyl amylopectin (trade name: TSP-30-D5, silicone-modified amylopectin, Shin-Etsu Chemical Co., Ltd.), and the coloring pigments described in Table 1 were mixed while stirring at room temperature (25°C: the same below) to make them uniform, thereby obtaining an oil phase composition.

[0232] (Preparation of the water phase component)

[0233] To purified water (aqueous medium E), methylene bis-benzotriazolyl tetramethylbutylphenol (trade name: Tinosorb M, manufactured by BASF Corporation: other ultraviolet absorber F, water dispersion), phenoxyethanol (preservative), 1,3-butanediol (polyhydric alcohol: aqueous medium E), ethanol (monohydric alcohol: aqueous medium E), magnesium sulfate and sodium citrate as pH adjustors, dipotassium glycyrrhizinate as a functional ingredient, Persea gratissima leaf extract, Bigflower Fagraea leaf extract, Centaurea cyanus flower extract, and antioxidant capsule (trade name: smart vector UV-CE (C00013), manufactured by BASF Corporation) as functional ingredients were added, and further, a perfume was added, and stirring was performed at room temperature to make uniform, whereby an aqueous phase composition was obtained.

[0234] (Preparation of emulsified cosmetics)

[0235] Next, the oil phase composition and the aqueous phase composition were mixed by a conventional method, and using a homogenizer (trade name: HM-310, manufactured by AS ONE Corporation) under the conditions of 3000 rpm for 15 minutes, whereby the emulsified cosmetic of Example 1 was obtained.

[0236] [Examples 2 to 12, Comparative Examples 1 to 4]

[0237] The emulsified cosmetics of Examples 2 to 12 and Comparative Examples 1 to 4 were obtained in the same manner as in Example 1, except that each component was changed to the components and amounts described in Table 1 or Table 2.

[0238] The total amount of silicone oil D with respect to the total amount of the emulsified cosmetic is shown in Tables 1 to 2.

[0239] [Assessment]

[0240] 1. Ultraviolet shielding effect

[0241] Based on the composition of the composite powder A and the ultraviolet absorber C contained in each of the emulsified cosmetics of Examples 1 to 12 and Comparative Examples 1 to 4, the values of SPF and PA of each emulsified cosmetic were calculated using the SPF simulator (Sunscreen Simulator (https: / / sunscreensimulator.basf.com / Sunscreen_Simulator / )) provided by BASF Corporation.

[0242] The calculated SPF was classified as follows.

[0243] - SPF classification -

[0244] a: 45 or more

[0245] b: 35 or more but less than 45

[0246] c: 25 or more but less than 35

[0247] d: less than 25

[0248] - PA grade -

[0249] The grades were classified as follows in the calculated PA.

[0250] a: 18 or more

[0251] b: 16 or more but less than 18

[0252] c: 10 or more but less than 16

[0253] d: less than 10

[0254] Since the ultraviolet shielding ability requires both the SPF and PA to be good, the ultraviolet shielding effect of each emulsified cosmetic was evaluated by the evaluation criteria of the following 4 stages.

[0255] - Criteria for the ultraviolet shielding effect -

[0256] A: the results of both the SPF and PA are a

[0257] B: the results of both the SPF and PA are b or more (however, the case where the results of both are a is excluded)

[0258] C: the results of both the SPF and PA are c or more (however, the results of both are not a or b)

[0259] D: either the SPF or PA is d

[0260] If the evaluation criteria are "A", "B", and "C", it is acceptable in practical use, and "A" and "B" are preferred, and "A" is more preferred.

[0261] 2. Use feeling

[0262] The use feeling of each emulsified cosmetic of Examples 1 to 12 and Comparative Examples 1 to 4 prepared above was evaluated.

[0263] 2-1. Spreading property

[0264] Ten professional evaluators were asked to spread the emulsified cosmetic on the face with the fingers, and the spreading property of the cosmetic spread on the skin was evaluated with the evaluation criteria of the following 4 stages.

[0265] Then, the evaluation scores of 10 persons were averaged, and the evaluation grade corresponding to the value rounded off at the first digit after the decimal point was set as the evaluation result of the spreadability. The results are shown in Tables 1 to 2.

[0266] The spreadability is one of the important use senses when the cosmetic is applied to the face, and good spreadability at the time of application brings good use sense.

[0267] If the evaluation grade is "A", "B", and "C", it is acceptable in practical use, and preferably "A" and "B", and more preferably "A".

[0268] -Reference-

[0269] A: Strongly felt to be good in spreadability

[0270] B: Slightly felt to be good in spreadability

[0271] C: Spread on the skin, but not felt to be good in spreadability

[0272] D: Felt to be bad in spreadability

[0273] 2-2. Stickiness

[0274] Ten professional evaluators were asked to apply the emulsified cosmetic to the face with the fingers, and to evaluate the stickiness after the application with the following four-stage evaluation reference.

[0275] Then, the evaluation scores of 10 persons were averaged, and the evaluation grade corresponding to the value rounded off at the first digit after the decimal point was set as the evaluation result of the stickiness.

[0276] The results are shown in Tables 1 to 2.

[0277] If the evaluation grade is "A", "B", and "C", it is acceptable in practical use, and preferably "A" and "B", and more preferably "A".

[0278] -Reference-

[0279] A: No feeling of stickiness

[0280] B: Almost no feeling of stickiness

[0281] C: Slightly felt to be good in spreadability

[0282] D: Strongly felt to be good in spreadability

[0283] In Tables 1 to 2, "%" described in the column of each component means "% by mass".

[0284] In Tables 1 to 2, "-" described in the column of each component means that the component corresponding to the column is not contained.

[0285] Details of each component described in Tables 1 to 2 are as follows.

[0286] [Oil phase component]

[0287] -Composite powder A-

[0288] Avobenzone composite titanium oxide (trade name: HXMT-100ZA, TAYCA Co., Ltd.)

[0289] -Zinc oxide B-

[0290] Triethoxycaprylylsilane-treated zinc oxide (trade name: MZX-508OTS, average primary particle diameter: 25 nm, TAYCA Co., Ltd.)

[0291] -Ultraviolet absorber C-

[0292] Ethylhexyl methoxy cinnamate (Uvinul MC80N, BASF Corporation)

[0293] Polysilicone-15 (PARSOL SLX, DSM Nutritional Products Ltd.)

[0294] Diethylamino hydroxybenzoyl hexyl benzoate (Uvinul A Plus Granular, BASF Corporation)

[0295] -Silicone oil D-

[0296] Polydimethylsiloxane (KF-96A-5cs, Shin-Etsu Chemical Co., Ltd.)

[0297] Diphenylsiloxyphenyl polytrimethylsiloxane (KF-56A, Shin-Etsu Chemical Co., Ltd.)

[0298] Cyclopentasiloxane: KF-995 (Shin-Etsu Chemical Co., Ltd.)

[0299] -Ester oil-

[0300] Cetyl 2-ethylhexanoate (NIKKOL CIO, Nikko Chemicals Co., Ltd.)

[0301] -Use feeling adjuster-

[0302] Dimethicone / vinyl dimethicone crosscopolymer (KSG-16, Shin-Etsu Chemical Co., Ltd.)

[0303] Butyl acrylate / ethylene glycol dimethacrylate crosscopolymer (Matsumoto Microsphere S-100, particle diameter: 15 μm, Matsumoto Yushi Seiyaku Co., Ltd.)

[0304] Dimethicone / (PEG-10 / 15) crosscopolymer (KSG-210, Shin-Etsu Chemical Co., Ltd.)

[0305] Trimethylsiloxysilylaminocarbamoyl amylopectin (TSP-30-D5, silicone-modified amylopectin, Shin-Etsu Chemical Co., Ltd.)

[0306] -Coloring pigments-

[0307] Iron oxide (red) (SA / NAI-R10D5, Miyoshi Kasei, Inc.)

[0308] Iron oxide (yellow) (SA / NAI-Y10D5, Miyoshi Kasei, Inc.)

[0309] Organic colorant (red) (DK D&C RED No. 7, Daito Kasei Kogyo Co., Ltd.)

[0310] -Silicone-based surfactants-

[0311] PEG-9 dimethicone ethyl dimethicone (KF-6028, Shin-Etsu Chemical Co., Ltd.)

[0312] -Sorbitan fatty acid esters-

[0313] Sorbitan sesquioleate (NIKKOL SO-15V, Nikko Chemicals Co., Ltd.)

[0314] [Water phase ingredients]

[0315] -Aqueous medium E-

[0316] Water (purified water)

[0317] Monohydric alcohol (ethanol)

[0318] Polyhydric alcohol (1,3-butanediol)

[0319] -Other UV absorbers F-

[0320] Methylene bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M, BASF Corporation)

[0321] -pH adjuster-

[0322] Magnesium sulfate

[0323] Sodium citrate

[0324] -Functional ingredients-

[0325] Dipotassium glycyrrhizinate

[0326] Kaffir lime leaf extract (Citrus hystrix leaf extract, MARUZEN PHARMACEUTICALS CO., LTD.)

[0327] Exocarpium Morindae Officinalis extract (YAMAKAWA BOEKI CO., LTD.)

[0328] Centaurea cyanus flower extract (Centaurea cyanus extract BG-J, MARUZEN PHARMACEUTICALS CO., LTD.)

[0329] Antioxidant capsule (Smart Vector UV-CE (C00013), BASF Corporation)

[0330] -Preservatives-

[0331] Phenoxyethanol [Table 1]

[0332]

[0333] [Table 2]

[0334]

[0335] As is apparent from the results shown in Tables 1 to 2, the emulsified cosmetics of the examples all solved the problems of the present application, and had excellent UV shielding effects and good use feeling, relative to the emulsified cosmetics of the comparative examples.

[0336] On the other hand, the emulsified cosmetic of Comparative Example 1, which did not contain UV absorber C, did not have sufficient UV shielding effect.

[0337] The emulsified cosmetic of Comparative Example 2, which did not contain UV absorber C and had too much content of composite powder A, had poor spreadability, especially when applied to the skin.

[0338] The emulsified cosmetic of Comparative Example 3 which does not contain the ultraviolet absorber C and has a large amount of the zinc oxide B relative to the composite powder A is poor in spreadability when applied to the skin, and the emulsified cosmetic of Comparative Example 4 which does not use the zinc oxide B relative to the composite powder A and contains only the ultraviolet absorber C is significantly tacky when applied to the skin.

Claims

1. An emulsified cosmetic product containing: A composite powder A containing less than 21% by mass of titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane relative to the total mass of emulsified cosmetics; Zinc oxide B; UV absorber C, excluding the composite powder A containing titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane; Silicone oil D, relative to the total mass of emulsified cosmetics, is 20% to 60% by mass; and Aqueous medium E.

2. The emulsified cosmetic according to claim 1, wherein, The content of the composite powder A of titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane is 1% to 21% by mass relative to the total mass of the emulsified cosmetic.

3. The emulsified cosmetic according to claim 1 or 2, wherein, The content of zinc oxide B is 1% to 20% by mass relative to the total mass of the emulsified cosmetic.

4. The emulsified cosmetic according to claim 1 or 2, wherein, The content of the ultraviolet absorber C, excluding the composite powder A containing titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane, is 1% to 20% by mass relative to the total mass of the emulsified cosmetic.

5. The emulsified cosmetic according to claim 1 or 2, wherein, The ultraviolet absorber C, excluding the composite powder A containing titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane, contains ethylhexyl methoxycinnamate.

6. The emulsified cosmetic according to claim 1 or 2, further comprising, in addition to the composite powder A of titanium dioxide and 4-tert-butyl-4'-methoxydibenzoylmethane, and the ultraviolet absorber C, the ultraviolet absorber F being contained in the aqueous medium E.

7. The emulsified cosmetic according to claim 1, further comprising a silicone-based surfactant.

8. The emulsified cosmetic according to claim 1 or 2, wherein it is a sunscreen cosmetic.

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