Sunscreen cosmetic

Abstract

The purpose of the present invention is to provide a sunscreen cosmetic which can be incorporated with an ultraviolet light absorber but does not incorporate an ultraviolet light absorber, and which has a high ultraviolet light protection capability, and which has excellent natural skin color and smoothness when applied. The present invention provides a sunscreen cosmetic containing the following components (A) to (E): (A) a metal oxide which is coated with a hydrophobizing agent and has an average particle diameter of 0.01 to 0.1 [mu] m; (B) a metal oxide coated with a hydrophobizing agent and having an average particle diameter of more than 0.1 [mu] m and less than 0.2 [mu] m; (C) a metal oxide which has an average particle diameter of 0.2-3.0 [mu] m and is coated with a hydrophobizing agent; (D) a non-volatile oil that is liquid at 25 DEG C; and (E) a surfactant, the metal oxides of the component (A), the component (B), and the component (C) may be the same or different and are one or more selected from titanium oxide and zinc oxide, and the total content of the component (A), the component (B), and the component (C) is 10-45 mass%.

Description

Technical Field

[0001] The present invention relates to sunscreen cosmetics. Background Art

[0002] Sunscreen cosmetics are often used in skin care cosmetics, color cosmetics, especially base makeup products such as sunscreen creams and foundations.

[0003] Regarding sunscreen cosmetics having an ultraviolet ray defense effect, in order to protect the skin from ultraviolet rays, an ultraviolet absorber and an ultraviolet scattering agent are usually blended. The ultraviolet absorber is formed of an organic compound, and ethylhexyl methoxycinnamate, hexyl diethylaminohydroxybenzoyl benzoate, etc. are used. As the ultraviolet scattering agent, metal oxides such as titanium dioxide, zinc oxide, cerium oxide, and iron oxide, which are inorganic powders, are mainly used.

[0004] The ultraviolet absorber has advantages such as high transparency and good extensibility. On the other hand, due to its irritation to the skin and its impact on the environment, in recent years, the demand for sunscreen cosmetics without ultraviolet rays has been increasing. In order to achieve sufficient ultraviolet ray defense ability without using an ultraviolet absorber, it is necessary to shield UVA waves and UVB waves only by using an ultraviolet scattering agent. Regarding the ultraviolet scattering agent, depending on the particle diameter of the metal oxide, the wavelength region to be shielded is different. Usually, a metal oxide having a particle diameter of less than 0.1 μm is called "fine particles", and it is considered to have a high ultraviolet ray defense ability. On the other hand, a metal oxide having a particle diameter of 0.2 μm or more is called "pigment grade", and although its ultraviolet ray defense ability is inferior to that of the fine particle metal oxide, it has makeup effects such as an effect of brightening the skin and an effect of correcting uneven skin tone. So far, a technique has been developed to impart ultraviolet ray defense ability by combining ultraviolet scattering agents having different particle diameters in the above-mentioned sunscreen cosmetics without ultraviolet absorbers, especially in base makeup cosmetics such as foundations.

[0005] For example, as in Patent Document 1, in the prior art, there is a technique of an oil-in-water type emulsified sunscreen cosmetic, which improves the poor usability caused by a large amount of blending of an ultraviolet scattering agent powder and the poor cleanability caused by blending of an ultraviolet scattering agent powder in a sunscreen cosmetic containing no ultraviolet absorber but containing hydrophobized zinc oxide and hydrophobized titanium oxide as ultraviolet scattering agent powders. In addition, for example, as in Patent Document 2, there is proposed a cosmetic characterized by being a titanium dioxide powder obtained by firing titanium dioxide having needle-like protrusions on the particle surface at 500 to 800 °C, having an apparent average particle diameter of 100 to 500 nm, an average crystallite diameter measured by X-ray diffraction method of 15 to 30 nm, and a specific surface area of 10 to 30 m 2 / g. Thus, the following cosmetics are proposed. By incorporating titanium dioxide powder with excellent hiding power and red light selective transmission function into the cosmetics, it can hide freckles, age spots, etc. while making the unevenness of the skin such as pores less obvious, providing a natural makeup effect.

[0006] In addition, for example, there is also a new technology such as Patent Document 3 that improves the dispersion state of ultraviolet absorbing particles such as titanium dioxide in the "intermediate region" that is neither "fine particles" nor "pigment grade". This technology forms base particles and multiple ultraviolet absorbing particles attached to the base particles, and the average particle size of the ultraviolet absorbing particles is 175 nm or less, thereby preventing aggregation and improving the ultraviolet shielding characteristics.

[0007] Prior Art Documents

[0008] Patent Documents

[0009] Patent Document 1: Japanese Patent Application Laid-Open No. 2013-43875

[0010] Patent Document 2: Japanese Patent Application Laid-Open No. 2017-119622

[0011] Patent Document 3: Japanese Patent Application Laid-Open No. 2013-221148 Summary of the Invention

[0012] Problems to be Solved by the Invention

[0013] For example, in Patent Document 1, in order to achieve a high ultraviolet protection effect, regarding the powders of zinc oxide and titanium dioxide as ultraviolet scattering agents with ultraviolet protection ability, the technical core is to use "fine particles" with an average primary particle size of 10 to 100 nm, and it did not occur to use powders in the "intermediate region" that are neither "fine particles" nor "pigment grade". In addition, it was not realized how to simultaneously achieve the smooth and good usability, ultraviolet blocking ability, and natural skin color as described in the present invention when a large amount is incorporated.

[0014] In addition, even though there is an invention such as Patent Document 2 that achieves a natural makeup effect through "pigment grade" metal oxides, when a large amount is incorporated, there are cases where satisfactory quality cannot be obtained in terms of balancing the natural skin color makeup effect and the ultraviolet shielding ability.

[0015] Furthermore, for example, in Patent Document 3, although the ultraviolet blocking characteristics brought about by simply improving the dispersibility of titanium dioxide in the "intermediate region" that is neither "fine particles" nor "pigment grade" were evaluated, it was not found that the combination of these three types of metal oxides, namely "fine particles", "intermediate region", and "pigment grade", can bring the following effects: not only improving the ultraviolet blocking ability but also having a natural skin color.

[0016] An object of the present invention is to provide a sunscreen cosmetic that has high ultraviolet ray defense ability even in a sunscreen cosmetic that can be formulated with an ultraviolet absorber but is not formulated with an ultraviolet absorber, and has excellent natural skin color and smoothness during application.

[0017] Means for Solving the Problem

[0018] In view of such circumstances, the inventors of the present application have conducted in-depth research in order to achieve high ultraviolet ray defense ability, natural skin color, and smoothness during application in a sunscreen cosmetic that can be formulated with an ultraviolet absorber but is not formulated with an ultraviolet absorber. As a result, it has been found that by combining powders obtained by covering metal oxides of three particle sizes, namely, metal oxides having an average particle size of 0.01 to 0.1 μm, metal oxides having an average particle size greater than 0.1 μm and less than 0.2 μm, and metal oxides having an average particle size of 0.2 to 3.0 μm, with each being covered with a hydrophobizing agent, a sunscreen cosmetic having excellent above-mentioned qualities can be achieved, and the present invention has been completed based on the above-mentioned findings.

[0019] That is, the present invention can provide a sunscreen cosmetic containing the following components (A) to (E):

[0020] (A) A metal oxide having an average particle size of 0.01 to 0.1 μm coated with a hydrophobizing agent;

[0021] (B) A metal oxide having an average particle size greater than 0.1 μm and less than 0.2 μm coated with a hydrophobizing agent;

[0022] (C) A metal oxide having an average particle size of 0.2 to 3.0 μm coated with a hydrophobizing agent;

[0023] (D) A non-volatile oil that is liquid at 25°C;

[0024] (E) A surfactant,

[0025] The metal oxides of the component (A) may be the same or different, and are one or more selected from titanium oxide and zinc oxide. The metal oxide of the component (B) is one or more selected from titanium oxide and zinc oxide. The metal oxide of the component (C) is one or more selected from titanium oxide and zinc oxide.

[0026] The total content of the component (A), the component (B), and the component (C) is 10 to 45% by mass.

[0027] The above-mentioned sunscreen cosmetic preferably further contains a volatile hydrocarbon oil as component (F).

[0028] The aforementioned component (A) is preferably one or more selected from zinc oxide and titanium oxide coated with iron oxide.

[0029] The content of the aforementioned component (B) is preferably 2 to 25% by mass.

[0030] The content of the aforementioned component (C) can be 1 to 15% by mass.

[0031] The mass ratio of the contents of the aforementioned component (A) and component (B) is preferably (A):(B) = 6 to 25:2 to 20.

[0032] The mass ratio of the contents of the aforementioned component (B) and component (C) is preferably (B):(C) = 2 to 20:2 to 7.

[0033] The mass ratio of the contents of the aforementioned component (A), component (B), and component (C) is preferably (A):(B):(C) = 6 to 25:2 to 20:2 to 7.

[0034] The aforementioned component (E) is preferably one or more selected from polyhydroxystearic acid, PEG-30 dimer hydroxystearate, and (acrylate / ethylhexyl acrylate / polydimethylsiloxane methacrylate) copolymer.

[0035] The hydrophobizing agent for the aforementioned component (A) and / or component (B) is preferably one or more selected from polydimethylsiloxane, alkylalkoxysilane, polyglycerol fatty acid ester, acyl amino acid or its salt, and fatty acid or its salt.

[0036] The proportion of the total content mass of the aforementioned component (A), component (B), and component (C) relative to the content mass of the aforementioned component (D) is preferably [(A)+(B)+(C)] / (D) = 0.5 to 5.

[0037] The total average particle size of the aforementioned component (A), component (B), and component (C) is preferably 60 to 240 nm.

[0038] The aforementioned sunscreen cosmetic preferably does not contain 5% by mass or more of an organic ultraviolet absorber, or does not contain an organic ultraviolet absorber.

[0039] It preferably further contains an inorganic powder and / or an organic powder in addition to the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C). The aforementioned inorganic powder contains one or more selected from silica, talc, mica, and synthetic mica, and the aforementioned organic powder preferably contains one or more selected from cellulose, silk, and starch.

[0040] The aforementioned sunscreen cosmetic can be a cosmetic that is also a color cosmetic.

[0041] Advantages of the Invention

[0042] According to the present invention, it is possible to provide a sunscreen cosmetic that still has high ultraviolet ray defense ability in a sunscreen cosmetic without blending an ultraviolet absorber, and has excellent natural skin color and smoothness during application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a graph showing the ultraviolet light / visible light transmittance % of the coating film (Example 1, 7, Comparative Examples 1, 2, 3, 4). As for the conditions, the liquid foundations of Example 1, 7, Comparative Examples 1, 2, 3, 4 were applied to each sample PMMA plate at 2 mg / cm 2 , and then left standing for 15 minutes. Then, using an SPF analyzer (UV-2000S manufactured by Labsphere), the transmittance in the UVA wave and UVB wave regions (290 - 450 nm) was measured.

[0044] Figure 2 is a graph showing the visible light spectral reflectance % of the coating film (Example 1, 7, Comparative Examples 1, 2, 3, 4). As for the conditions, the liquid foundations of Example 1, 7, Comparative Examples 1, 2, 3, 4 were applied at 0.1 g to a 20 mm × 20 mm black artificial leather, and then left standing for 15 minutes. Then, using a spectrophotometer (Spectro1 manufactured by KLV Co., Ltd.) TM , the spectral reflectance in the visible light region (400 - 700 nm) was measured every 10 nm.

[0045] Figure 3 is a graph showing a comprehensive evaluation list of the ultraviolet light transmittance %, visible light reflectance %, and visual evaluation of skin color of the coating film (Example 1, 7, Comparative Examples 1, 2, 3, 4). DETAILED DESCRIPTION OF THE INVENTION

[0046] ​​​A preferred embodiment of the present invention will be described in detail. However, the present invention is not limited to the following preferred embodiments and can be freely changed within the scope of the present invention. It should be noted that in this specification, percentages are expressed on a mass basis unless otherwise specified. In addition, in this specification, when a numerical range is expressed using "~", the range includes the numerical values at both ends. In addition, the upper limit value (hereinafter) and the lower limit value (above) of each numerical range (~) can be arbitrarily combined as desired. In addition, the "average particle diameter" in the present invention is the number average value (D50) obtained by observing the surface state using a scanning electron microscope (manufactured by JEOL, JSM-7800prime) and measuring 1000 particles using an image analysis device (LUZEX AP, manufactured by NIRECO Corporation). It should be noted that in the case of an asymmetric shape, in the present invention, the median particle diameter D50 obtained from the distribution of the maximum particle diameter is used as the average particle diameter. It should also be noted that 1 μm is also expressed as 1000 nm.

[0047] The "metal oxide having an average particle diameter of 0.01 to 0.1 μm coated with a hydrophobizing agent" used in the present invention is obtained by coating a metal oxide having a specific average particle diameter with a hydrophobizing agent. The "metal oxide having an average particle diameter greater than 0.1 μm and less than 0.2 μm coated with a hydrophobizing agent" for component (B) is obtained by coating a metal oxide having a specific average particle diameter with a hydrophobizing agent. The "metal oxide having an average particle diameter of 0.2 to 3.0 μm coated with a hydrophobizing agent" for component (C) is obtained by coating a metal oxide having a specific average particle diameter with a hydrophobizing agent. Each of component (A) to component (C) used in the present invention is a metal oxide coated with a hydrophobizing agent, and the present invention includes these three types.

[0048] Regarding the "metal oxide having a specific average particle diameter coated with a hydrophobizing agent" of component (A), component (B), and component (C) used in the present invention, as metal oxides having an ultraviolet blocking ability used in ordinary cosmetics and the like, for example, metal oxides such as titanium oxide, iron oxide, cerium oxide, zirconium oxide, and zinc oxide can be mentioned. In particular, titanium oxide and / or zinc oxide are included in the metal oxides.

[0049] In addition, the metal oxides of component (A), component (B), and component (C) used in the present invention may also be iron oxide-coated metal oxides whose surfaces are further coated with iron oxides or hydroxides, or iron-doped metal oxides in which iron is doped inside the metal oxides. For example, as such iron oxides or hydroxides, there may be mentioned: titanium oxide or zinc oxide whose surface is coated with iron oxide, i.e., iron oxide-coated titanium oxide or iron oxide-coated zinc oxide; iron-doped titanium oxide or iron-doped zinc oxide obtained by doping iron inside titanium oxide or zinc oxide; and so on. In addition, each layer may be coated with silicon oxides or hydroxides, or aluminum oxides or hydroxides.

[0050] The shape of the metal oxides used in the present invention may be any shape commonly used in cosmetics, and shapes such as spherical, plate-like, and needle-like are not particularly limited. Any shape can be used, and one kind or a combination of two or more kinds can be used.

[0051] The average particle diameter of each of components (A), (B), and (C) used in the present invention refers to the average particle diameter of "the powder of titanium oxide and / or zinc oxide", and is assumed to be the size formed by components other than the organic hydrophobizing surface treatment agent. For example, the average particle diameter of each of components (A), (B), and (C) can be obtained by measuring the metal oxide before hydrophobization treatment. Regarding the metal oxides of components (A), (B), and (C) used in the present invention, oxides of one or more elements selected from Al (aluminum), Mg (magnesium), Sn (tin), Co (cobalt), Fe (iron), Si (silicon), Zn (zinc), Ti (titanium), Ce (cerium), etc. may be contained on the surface or inside of the metal oxide. Preferably, the object is a substance in which these inorganic components (elements) such as Al are included and the metal oxide is granulated, and its content (mass% of pure component) is not particularly limited, and is preferably 60 mass% or more. However, when components (A), (B), and (C) are used as particles and utilized as a composite powder with other powders, the average particle diameter of other powder components other than components (A), (B), and (C) is not considered, and the average particle diameter of the particles of each of components (A), (B), and (C) is always taken as the standard.

[0052] It should be noted that the contents of titanium oxide and zinc oxide are considered in terms of the mass percentage of the pure components in 100% by mass (hereinafter referred to as “%”) of the metal oxide powder coated with each hydrophobizing agent. In addition, for the case of the content of the metal oxide, it is also considered in terms of the mass percentage of the pure components in the same way. The mass percentage of the pure components can also be obtained by measuring a sample prepared by a conventional method by ICP (Inductively Coupled Plasma; ARCOS (SPECTRO Analytical Instruments GmbH, Germany)) emission analysis. In the case of commercially available products, it can be judged based on the content described in the SDS.

[0053] <Component (A)>

[0054] In the present invention, the “powder of titanium oxide and / or zinc oxide” of the component (A) “metal oxide having an average particle size of 0.01 to 0.1 μm coated with a hydrophobizing agent” can be one kind or a combination of two or more kinds. The “powder of titanium oxide and / or zinc oxide” used as the component (A) is a metal oxide having an average particle size in the range of 0.01 or more and 0.1 μm or less.

[0055] As commercially available products, MT-01 (average particle size: 0.01 μm, stearic acid-treated titanium oxide, manufactured by TAYCA CO., LTD.), SMT-500SAM (average particle size: 0.035 μm, polydimethylsiloxane-treated titanium oxide, manufactured by TAYCA Co., Ltd.), MZY-505M (average particle size: 0.025 μm, polydimethylsiloxane-treated zinc oxide, manufactured by TAYCA Co., Ltd.), MZX-304OTS (average particle size: 0.035 μm, triethoxyoctylsilane-treated zinc oxide, manufactured by TAYCA Co., Ltd.), XZ-100F-LF (average particle size: 100 nm, silicone-treated zinc oxide, manufactured by Sakai Chemical Industry Co., Ltd.) etc. can be cited. Among these, titanium oxide coated with zinc oxide and / or iron oxide is preferred, and zinc oxide is preferred from the viewpoint of achieving natural skin color.

[0056] The content (in terms of mass percentage of the pure components) of titanium oxide and / or zinc oxide of the component (A) used in the present invention is not particularly limited. As a suitable lower limit, it is preferably 3% by mass (hereinafter referred to as “%”) or more, more preferably 5% or more, and further preferably 8% or more, relative to the total amount of the sunscreen cosmetic. In addition, as a suitable upper limit, it is preferably 35% or less, more preferably 30% or less, and further preferably 27% or less. As a suitable range, it is preferably 6 to 25% by mass (hereinafter abbreviated as “%”), and more preferably 10 to 25%.

[0057] In addition, when using one or two or more components (A), the total average particle size of component (A) is preferably 0.01 to 0.1 μm, more preferably 0.02 to 0.05 μm. If it is within this range, the ultraviolet ray defense ability is high and the smoothness during application is excellent, so it is more preferred. It should be noted that the so-called total average particle size of component (A), in the case of separately containing metal oxides with the same average particle size, the average particle size of component (A) can be adopted. In the case of using metal oxides with multiple different average particle sizes, it is the weighted average particle size [the sum of each (average particle size × content) / the sum of each content].

[0058] <Component (B)>

[0059] The component (B) “titanium oxide and / or zinc oxide having the aforementioned specific average particle size coated with a hydrophobizing agent” used in the present invention can adopt the same definition as the aforementioned component (A). The “powder of titanium oxide and / or zinc oxide” used as this component (B) is preferably a metal oxide with an average particle size in the range greater than 0.1 μm and less than 0.2 μm. As a suitable lower limit, it is preferably in the range of 0.11 or more. In addition, as a suitable upper limit, it is preferably 0.18 μm or less, more preferably in the range of 0.11 or more and 0.18 μm or less.

[0060] As commercially available products, Solaveil HTP-1 (average particle size 0.16 μm, stearic acid-treated titanium oxide, manufactured by Croda), Solaveil XTP-1 (average particle size 0.145 μm, stearic acid-treated titanium oxide, manufactured by Croda), MP-18 (average particle size 180 nm, titanium oxide, manufactured by TAYCA Co., Ltd.), composite powders based on them, such as MTXO70 series (NL (matrix: nylon), CS (matrix: corn starch)) (average particle sizes are all 0.145 μm, stearic acid and alumina-treated titanium oxide 60-70% coated powder, manufactured by Hayate Material) etc. can be cited.

[0061] The content of titanium oxide and / or zinc oxide in component (B) used in the present invention (in terms of mass% of pure component content) is not particularly limited. Relative to the total amount of the sunscreen cosmetic, as a suitable lower limit, it is preferably 0.1 mass% (hereinafter referred to as %) or more, more preferably 1% or more, further preferably 3% or more. In addition, as a suitable upper limit, it is preferably 30% or less, more preferably 27% or less, further preferably 25% or less. As a range, it is preferably 4 to 30%, more preferably 4 to 25%, further preferably 8 to 25%.

[0062] In addition, when using one or two or more components (B), the total average particle diameter of component (B) is preferably greater than 0.1 μm and less than 0.2 μm, more preferably 0.11 to 0.18 μm. When in this range, the ultraviolet ray defense ability is high and the natural skin color is excellent, so it is more preferable. In addition, it may be a substance obtained by coating the surface of titanium oxide and / or zinc oxide with iron oxide, or a substance obtained by doping iron into the interior of titanium oxide and / or zinc oxide. It should be noted that the total average particle diameter of component (B) can be defined in the same way as the total average particle diameter of the aforementioned component (A).

[0063] <Component (C)>

[0064] The titanium oxide and / or zinc oxide with the aforementioned specific average particle diameter coated with a hydrophobizing agent used in the present invention can be defined in the same way as the aforementioned component (A). The "powder of titanium oxide and / or zinc oxide" used as this component (C) is preferably a metal oxide with an average particle diameter in the range of 0.2 or more and 3.0 μm or less.

[0065] As commercially available products, there can be mentioned substances obtained by treating MP-1133 (average particle diameter 0.27 μm, titanium oxide, manufactured by TAYCA Co., Ltd.) with triethoxy octylsilane, disodium stearoyl glutamate, lecithin, etc., MPY-70M (average particle diameter 0.7 μm, titanium oxide treated with polydimethylsiloxane, manufactured by TAYCA Co., Ltd.), MPY-100M (average particle diameter 1 μm, titanium oxide treated with polydimethylsiloxane, manufactured by TAYCA Co., Ltd.), XZ-300F-LF (average particle diameter 300 nm, zinc oxide treated with silicone, manufactured by Sakai Chemical Industry Co., Ltd.), XZ-1000F-LF (average particle diameter 1000 nm, zinc oxide treated with silicone, manufactured by Sakai Chemical Industry Co., Ltd.), XZ-3000F-LF (average particle diameter 3000 nm, zinc oxide treated with silicone, manufactured by Sakai Chemical Industry Co., Ltd.), etc.

[0066] The content of titanium oxide and / or zinc oxide of component (C) used in the present invention is not particularly limited. Relative to the total amount of the sunscreen cosmetic, as a suitable lower limit, it is preferably 0.1% by mass (hereinafter referred to as %), more preferably 1% or more, further preferably 2% or more. In addition, as a suitable upper limit, it is preferably 30% or less, more preferably 27% or less, further preferably 25% or less. As a suitable range, it is preferably 3 to 20%, more preferably 3 to 15%, further preferably 3 to 10%.

[0067] In addition, when using one or two or more components (C), the total average particle size of component (C) is preferably an average particle size of 0.2 to 3.0 μm, more preferably 0.25 to 1.0 μm. When in this range, the natural skin color is excellent, so it is more preferable. In addition, it may be a substance obtained by coating the surface of titanium oxide and / or zinc oxide with iron oxide, or a substance obtained by doping iron into the interior of titanium oxide and / or zinc oxide. It should be noted that the total average particle size of component (C) can be defined in the same way as the total average particle size of the aforementioned component (A).

[0068] Regarding the total mass of the three components, namely the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C), used in the present invention, as a suitable lower limit, it is preferably 10% or more, more preferably 15% or more, and further preferably 20% or more. In addition, as a suitable upper limit, it is preferably 45% or less, more preferably 42% or less, and further preferably 39% or less. As a suitable value, it is 10 to 45%, further preferably 15 to 42%, and more preferably 20 to 39%. In addition, regarding the mass ratio of component (A), component (B), and component (C), a suitable range of (A):(B) is 6 to 25:2 to 20, and / or a suitable range of (B):(C) is 2 to 20:2 to 7 is preferred, and a suitable range of (A):(B):(C) is 6 to 25:2 to 20:2 to 7 is preferred, more preferably (A):(B):(C)=10 to 25:3 to 15:2 to 7. When in this range, it is preferred in terms of achieving a high ultraviolet ray defense effect, natural skin color, and smoothness during application.

[0069] In addition, regarding the total average particle size (the further average value of the respective average particle sizes) of the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C), as a suitable lower limit, it is preferably 60 nm or more, more preferably 70 nm or more, and further preferably 80 nm or more. In addition, as a suitable upper limit, it is preferably 240 nm or less, more preferably 200 nm or less, and further preferably 160 nm or less. As a suitable range, it is preferably 60 to 240 nm, more preferably 70 to 200 nm, and further preferably 80 to 160 nm. The ultraviolet ray defense effect is high, and the natural skin color and smoothness during application are excellent, so it is preferred. The method for obtaining the total average particle size of the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C) is the weighted average particle size of the average particle size of the aforementioned component (A), the average particle size of the aforementioned component (B), and the average particle size of the aforementioned component (C) [the sum of each (average particle size × content) / the sum of each content].

[0070] <Hydrophobized surface treatment agent>

[0071] The hydrophobizing surface treatment agent used in the present invention for component (A), component (B), and component (C) is not particularly limited. At room temperature, it can be a solid, a semi-solid, or a liquid, and there is no limitation on its properties. It can be chemisorption with reactivity to the surface of metal oxides or physical adsorption, without particular limitation. For example, silicone compounds, amino acids or their salts, treatment agents having a fatty group with 8 to 24 carbon atoms, coupling agents, such as silane-based, aluminum-based, titanium-based, etc., like alkylalkoxysilane treatment. They can be used alone or in combination of two or more. Component (A), component (B), and component (C) can be treated with the same hydrophobizing surface treatment agent or each can be treated with a different hydrophobizing surface treatment agent.

[0072] As silicone compounds, for example, polydimethylsiloxane, amino-modified silicone, polydimethylsiloxanol, methylhydrogenpolysiloxane, etc. can be cited. As amino acids or their salts, amino acids such as theanine, hydroxyproline, serine, etc. can be cited. As surface treatment agents having a structure with a fatty group having 8 to 24 carbon atoms, for example, hydrocarbons, lecithin, hydrogenated phospholipids, peptides, polyurethanes, N-acyl amino acids (for example, lauroyl lysine, sodium dilauroyl glutamate lysine, disodium stearoyl glutamate, sodium lauroyl aspartate, etc.), polyethylene oxide, fatty acids or their salts (for example, stearic acid, isostearic acid, zinc stearate, magnesium stearate, zinc myristate, zinc laurate, etc.), fatty acid esters (for example, vegetable oils, animal oils, glycerol fatty acid esters, polyglycerol fatty acid esters, etc., polysaccharide fatty acid esters (for example, dextrin fatty acid esters, inulin fatty acid esters, etc.)), fatty acid amides, ceramides, etc. can be cited.

[0073] As coupling agents, for example, triethoxyoctylsilane, aminopropyltriethoxysilane, triisostearoyl titanate isopropoxide, etc. can be cited.

[0074] Particularly for component (A) and component (B), among the above, it is preferred to perform surface treatment with a hydrophobizing treatment agent having one or more selected from alkyl, alkoxy, acyl, and acylamino groups having 8 to 24 carbon atoms. Specifically, it is even more preferably one or more selected from polydimethylsiloxane, alkylalkoxysilane, polyglycerol fatty acid esters, acyl amino acids or their salts, and fatty acids or their salts. In addition, each component can be treated with a combination of two or more surface treatment agents. When in this range, it is preferred from the viewpoints of achieving a high ultraviolet protection effect and smoothness during application.

[0075] Particularly with respect to component (C), among the above, it is preferable to perform surface treatment using a hydrophobizing agent having one or more selected from alkyl groups, alkoxy groups, acyl groups, and acylamino groups having 8 to 24 carbon atoms. Specifically, it is even more preferable to use one or more selected from alkylalkoxysilanes, polyglycerol fatty acid esters, acyl amino acids or their salts, lecithin, and fatty acids or their salts. In addition, two or more surface treatment agents can be combined to treat component (C). When in this range, it is preferable from the viewpoints of natural skin color and smoothness during application.

[0076] Regarding the treatment amount of the hydrophobizing agent for component (A) used in the present invention, preferably, when the particle mass of titanium oxide and / or zinc oxide particles having a specific average particle size of the aforementioned component (A) is set to 100%, as an example, when a hydrophobizing agent amount of 0.5% or more is added for treatment, the powder amount to be treated is calculated as 99.5%. Regarding the hydrophobizing agent amount, as a suitable lower limit, it is preferably 0.5% or more, more preferably 1%, further preferably 2% or more. In addition, as a suitable upper limit, it is preferably 25% or less, more preferably 20% or less, further preferably 15% or less, and even more preferably 10% or less. As a suitable range, it is more preferably 0.5 to 15%, and further preferably 1 to 15%. When in this range, it is preferable from the viewpoints of high ultraviolet ray protection effect and smoothness during application.

[0077] Regarding the treatment amount of the hydrophobizing agent for component (B) used in the present invention, preferably, when the particle mass of titanium oxide and / or zinc oxide particles having a specific average particle size of the aforementioned component (B) is set to 100%, hereinafter, calculated in the same manner as the above component (A), as a suitable lower limit, the hydrophobizing agent amount is preferably 0.5% or more, more preferably 1%, further preferably 2% or more. In addition, as a suitable upper limit, it is preferably 20% or less, more preferably 15% or less, further preferably 10% or less, and even more preferably 8% or less. As a suitable range, it is preferably 0.5 to 20%, preferably 0.01 to 15%, more preferably 0.5 to 10%, and further preferably 1 to 8%. When in this range, it is preferable from the viewpoints of high ultraviolet ray protection effect and smoothness during application.

[0078] Regarding the treatment amount of the hydrophobizing agent for the component (C) used in the present invention, preferably, when the particle mass of titanium oxide and zinc oxide particles having a specific average particle size of the aforementioned component (C) is set to 100%, hereinafter, calculated in the same manner as the above component (A), as a suitable lower limit, the hydrophobizing agent amount is preferably 0.01% or more, more preferably 0.05%, still more preferably 0.1% or more. In addition, as a suitable upper limit, it is preferably 5% or less, more preferably 3% or less, still more preferably 2% or less. As a suitable range, it is preferably 0.01 to 5%, more preferably 0.05 to 3%, still more preferably 0.1 to 3%. When it is in this range, it is preferable from the viewpoints of natural skin color and smoothness during application.

[0079] As a method for surface-treating the metal oxides of the component (A), component (B), and component (C) used in the present invention, there is no particular limitation, and known treatment methods for powder modification used in conventional cosmetics can be used. For example, a wet method using a solvent, a dry method for treatment in a gas phase, etc. can be used. Particularly preferably, after mixing with a volatile solvent or an oil agent, it is made into a dispersion or dried to form a fine powder. If the treatment is carried out by a wet method using a specific volatile solvent such as an alcohol solvent such as isopropanol, a hydrocarbon solvent such as hexane or isododecane, or a volatile organosilicon solvent such as polydimethylsiloxane, the surface treatment becomes uniform and the dispersibility is improved, so it is preferred. Specifically, in the case of the wet method, it is preferable to dissolve the hydrophobizing agent in a solvent, add a metal oxide (for example, the metal oxide having a specific average particle size of the aforementioned component (A)), and uniformly stir and mix using a mixer such as a Henschel mixer, a kneader, an ultra-high speed mixer, a bead mill, or a roll mill to disperse or wet it. In addition, there is no particular limitation for the subsequent steps, and it can be a method of including it as a dispersion in a sunscreen cosmetic without recovering the solvent, a method of recovering or evaporating the solvent, drying and homogenizing, and then pulverizing, etc. In addition, in the case of pulverizing in a dry state, as the pulverizing method, equipment such as a jet mill, an atomizer, or a grinder for generally crushing granulated powder can be cited.

[0080] <Component (D)>

[0081] The non-volatile oil in a liquid state at 25°C of the component (D) used in the present invention is not particularly limited as long as it is a substance usually formulated in cosmetics, and can be appropriately selected. For example, hydrocarbon oils, ester oils, higher alcohols having 12 to 22 carbon atoms, fatty acids having 12 to 22 carbon atoms, organosilicon oils, etc. can be cited, and one kind or a combination of two or more kinds can be contained.

[0082] As hydrocarbon oils, for example, liquid paraffin, liquid isoparaffin, heavy liquid isoparaffin, squalane, pristane, squalene, etc. can be cited. One or more than two kinds selected from these can be used.

[0083] As ester oils, for example, isononyl isononanoate, isotridecyl isononanoate, octyldodecyl myristate, isopropyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, isopropyl isostearate, oleyl oleate, octyldodecyl ricinoleate, 2-ethylhexyl p-methoxycinnamate, tocopheryl acetate, alkanol benzoates such as (C12-15) alcohol benzoate, isopropyl palmitate, ethylhexyl palmitate, 2-hexyldecyl palmitate and other monoester oils, di-2-ethylhexyl sebacate, diisopropyl sebacate, diethylene glycol didecanoate, neopentyl glycol didecanoate, neopentyl glycol bis(2-ethylhexanoate), diisostearyl malate and other diester oils, tri(2-ethylhexanoic acid) glyceride, (caprylic / capric) triglyceride and other triester oils, etc. One or more than two kinds selected from these can be used.

[0084] As higher alcohols having 12 to 22 carbon atoms, for example, oleyl alcohol, 2-decyltetradecanol, dodecanol, isostearyl alcohol, octyldodecanol, etc. can be cited. As fatty acids having 12 to 22 carbon atoms, for example, oleic acid, isostearic acid, linoleic acid, linolenic acid, etc. can be cited. One or more than two kinds selected from these can be used.

[0085] As commercially available products, Salacos 913 (manufactured by NISSHIN Oillio Group, Ltd.), UVINUL MC80 (manufactured by BASF SE) can be cited. One or more than two kinds selected from these can be used.

[0086] As organosilicon oils, in addition to linear organosilicon oils such as polydimethylsiloxane, modified organosilicons having substituents such as phenyl-modified organosilicon and methylhydrogenpolysiloxane can be cited. As commercially available products, KF-96A-6CS (manufactured by Shin-Etsu Chemical Co., Ltd.), Silicone SH556FLUID (manufactured by Toray Dow Corning Co., Ltd.), KF-99 (manufactured by Shin-Etsu Chemical Co., Ltd.), etc. can be cited. One or more than two kinds selected from these can be used.

[0087] Particularly preferably, an ester oil having a molecular weight of 600 or less is preferred, more preferably an ester oil having a molecular weight of 500 or less, and still more preferably an ester oil having a molecular weight of 400 or less. Specifically, for example, isopropyl myristate (Mw: 270.45), isononyl isononanoate (Mw: 284.48), (C12-15) alcohol benzoate (Mw: 290), isopropyl palmitate (Mw: 298.5), ethyl oleate (Mw: 310.51), isotridecyl isononanoate (Mw: 340.58), decyl tetradecyl alcohol (Mw: 354.65), octyl palmitate (Mw: 368), cetyl alcohol ethylhexanoate (Mw: 368.64), triglyceride (ethylhexanoic acid) (Mw: 470.7), etc. can be cited. In addition, as an ultraviolet absorber, octyl methoxycinnamate (Mw: 290.4) can also be cited. In addition, one kind or a combination of two or more kinds can be blended. When it is in these ranges, the smoothness at the time of application is excellent, and thus it is preferred.

[0088] The content of the component (D) used in the present invention is not particularly limited. As a suitable lower limit relative to the total amount of the sunscreen cosmetic, it is preferably 5% by mass or more, more preferably 10% or more, still more preferably 15% or more. In addition, as a suitable upper limit, it is preferably 85% or less, more preferably 70% or less, still more preferably 55% or less. As a suitable range, it is preferably 5 to 85%, more preferably 10 to 70%, still more preferably 15 to 55%. When it is in this range, the comprehensive evaluation of the ultraviolet ray defense ability and the smoothness at the time of application are excellent, and thus it is more preferred.

[0089] It should be noted that regarding the ratio of the total content mass of the aforementioned components (A), (B) and (C) to the content mass of the component (D), as a suitable lower limit of [(A)+(B)+(C)] / (D), it is preferably 0.5 or more, more preferably 0.7 or more, still more preferably 0.7 or more. In addition, as a suitable upper limit of this, it is preferably 5 or less, more preferably 4 or less, still more preferably 3.5 or less. A more suitable value is preferably [(A)+(B)+(C)] / (D)=0.5 to 5, more preferably 0.7 to 4, preferably 0.9 to 3.5. When it is in this range, it is preferred from the viewpoints of high ultraviolet ray defense effect and smoothness at the time of application.

[0090] <Component (E)>

[0091] The component (E) used in the present invention is a surfactant, and any substance that is usually formulated in cosmetics can be used without particular limitation, and it can be appropriately selected. For example, it can be combined to contain one or more selected from silicone surfactants, sugar fatty acid esters, glycerol fatty acid esters, polyglycerol fatty acid esters, surfactants having a hydroxy fatty acid group, etc. Among them, from the viewpoints of high ultraviolet ray defense effect and smoothness during application, silicone surfactants and surfactants having a hydroxy fatty acid group are preferred.

[0092] Examples of the silicone surfactant include polyether-modified silicone having a polyether chain as a hydrophilic group, polyglycerol-modified silicone having a polyglycerol chain as a hydrophilic group, etc. It can also be a graft copolymer having a polyorganosiloxane main chain and a hydrophilic group in the side chain, or a linear block copolymer or a crosslinked polymer obtained by alternately bonding a polyorganosiloxane group and a hydrophilic group, or a graft copolymer having an acrylic polymer main chain and a polyorganosiloxane group in the side chain. The aforementioned polyorganosiloxane group can be linear or can have a branched structure, and can be a substance obtained by co-modifying with an organic group such as an alkyl group or a fluorine-substituted alkyl group. Examples of commercially available products include KF-6028P (manufactured by Shin-Etsu Chemical Co., Ltd.), KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.), KF-6105 (manufactured by Shin-Etsu Chemical Co., Ltd.), KF-6019 (manufactured by Shin-Etsu Chemical Co., Ltd.), ABIL EM 90 (manufactured by EVONIC GOLDSCHMIDT), ABIL EM 97S (manufactured by EVONIC GOLDSCHMIDT), KP-578 (manufactured by Shin-Etsu Chemical Co., Ltd.), ES-5600 (manufactured by Dow Toray Co., Ltd.), etc.

[0093] Examples of commercially available products of the surfactant having a hydroxy fatty acid group include Salacos HS-6C (manufactured by NISSHIN Oillio Group, Ltd.), CITHROL DPHS-SO-(JP) (manufactured by Croda), etc.

[0094] Among them, (acrylate / ethylhexyl acrylate / polydimethylsiloxane methacrylate) copolymer, polyhydroxystearic acid, and PEG-30 dimer hydroxystearate are particularly preferred. These are excellent in terms of comprehensive evaluation of ultraviolet ray defense ability, and thus are more preferred.

[0095] The content of the component (E) used in the present invention is not particularly limited. Relative to the total amount of the sunscreen cosmetic, as a suitable lower limit, it is preferably 0.1% or more, more preferably 0.5% or more, and further preferably 1.0% or more. In addition, as a suitable upper limit, it is preferably 6% or less, more preferably 5% or less, and further preferably 4% or less. As a suitable range, it is preferably 0.1 - 6%, more preferably 0.5 - 5%, and further preferably 1.0 - 4.0%. When it is in this range, the comprehensive evaluation of the ultraviolet ray defense ability and the smoothness during application are excellent, so it is more preferable.

[0096] It should be noted that regarding the ratio of the total mass of the aforementioned component (A) and component (B) to the content mass of component (E), as a suitable lower limit value of [(A)+(B)] / (E), it is preferably 0.1 or more, more preferably 0.2 or more, and further preferably 0.3 or more. In addition, as a suitable upper limit value of this, it is preferably 15 or less, more preferably 10 or less, and further preferably 9 or less. A more suitable value is preferably [(A)+(B)] / (E)=0.1 - 15, more preferably 0.2 - 10, and preferably 0.3 - 9. When it is in this range, it is preferable from the viewpoints of high ultraviolet ray defense effect and smoothness during application.

[0097] <Optional component>

[0098] In the sunscreen cosmetic of the present invention, in addition to the above components, as components commonly used in cosmetics, powders other than component (A), component (B), and component (C), oil agents other than component (D), volatile oil agents such as polydimethylsiloxane and isododecane, volatile hydrocarbon oils, water, water-based components other than water such as ethanol and polyols, oil gelling agents, ultraviolet absorbers, water-soluble polymers, oil-soluble film-forming agents, thickeners, preservatives such as p-hydroxybenzoic acid derivatives and phenoxyethanol, beauty components, fragrances, pH regulators, stabilizers, antioxidants, metal chelating agents, astringents, anti-inflammatory agents, etc. can be appropriately contained within the range that does not impair the effects of the present invention. One or more than two kinds can be selected from these.

[0099] The present invention can also use a volatile hydrocarbon oil as component (F). The volatile hydrocarbon oil is a hydrocarbon oil having a boiling point of 260°C or lower under normal pressure. Such volatile hydrocarbons are not particularly limited. For example, it can be mentioned that light mobile isoparaffins obtained by polymerizing or copolymerizing (the degree of polymerization is preferably 4 - 6) hydrocarbons having side chains such as isooctane, isododecane, isocetane, isoeicosene, isoparaffins, or their mixtures, isobutene, n-butene, etc., and then hydrogenating them. One kind can be used as needed or two or more kinds can be used in combination.

[0100] As commercial products, Marukasol R (manufactured by Maruzen Petrochemical Co., Ltd.), CETIOL (registered trademark) ULTIMATE (manufactured by BASF Japan Ltd.), ARLAMOL HD (Croda Japan), IP Solvent 1620, IP Solvent 2028 (both manufactured by Idemitsu Petrochemical Co., Ltd.), DEDRAFLOW 5 (manufactured by CIT), PERMETHYL 99A (manufactured by PRESPERS), AEC Isododecane (manufactured by A and E Connock (Perfumery and Cosmetics) Ltd.), CreasilID CG (manufactured by CIT Sarl), Fancol ID (manufactured by Elementis Specialties), Oristar IDD (manufactured by Orient Stars LLC), Permethyl 99A (manufactured by Presperse Corp), ISODODECANE (manufactured by IMCDINEOS Oligomers), Ritacane ID (manufactured by RITA Corporation), etc. can be cited.

[0101] Among these, from the viewpoints of smooth spread and appropriate film-forming speed of the makeup film, one or more selected from the group consisting of saturated hydrocarbon oils having a side chain with 4 to 18 carbon atoms, isododecane, (C9-12) alkane, tetradecane, isocetane, and undecane / tridecane are preferred, and isododecane is more preferred.

[0102] As commercial products of these volatile hydrocarbon oils, IP Solvent 1620MU, IP Solvent 2028MU (both manufactured by Idemitsu Kosan Co., Ltd.), ISOPAR (manufactured by Esso Chemical Company), Marukasol R (manufactured by Maruzen Petrochemical Co., Ltd.), Jeechem NDA-LC (Jeen International Corporation), PARAFOL 12RSPO-MB, PARAFOL 14RSPO-MB (SASPL Germany GmbH), SMART C5, SILKFLO 362 (IMCD Japan Co., Ltd.), DEDRAFLOW 5, Creasil IH CG (CIT SARL), etc. can be cited.

[0103] The content of the component (F) used in the present invention is not particularly limited. With respect to the total amount of the sunscreen cosmetic, as a suitable lower limit, it is preferably 1% or more, more preferably 3% or more, and further preferably 5% or more. In addition, as a suitable upper limit, it is preferably 16% or less, more preferably 10% or less, and further preferably 8% or less. As a suitable range, it is preferably 1 to 16%, more preferably 3 to 10%. When it is within this range, it is preferable from the viewpoint of the smoothness during application.

[0104] In the sunscreen cosmetic of the present invention, powders other than the component (A), the component (B), and the component (C) may also be contained. The powder is preferably one or more selected from organic powders, inorganic powders, and biodegradable powders, and more preferably an organic powder and / or an inorganic powder. The shape of the powder is not particularly limited. The presence or absence of fine irregularities and large irregularities on the surface, hollow, porous, or non-porous surface shapes of the powder are also not particularly limited. As specific component names of the powder, for example, silica, alumina, calcium carbonate, magnesium carbonate, zirconium oxide, cerium oxide, calcium carbonate, barium sulfate, talc, mica, synthetic mica, cellulose, silk, nylon, starches such as corn starch, polylactic acid, calcium silicate, magnesium silicate, polymethyl methacrylate, polymethylsilsesquioxane, polystyrene, alkyl acrylate polymers, polyethylene, polyurethane, etc. may be mentioned. One or more selected from these can be used. Among these, preferably one or more selected from inorganic powders such as silica, alumina, calcium carbonate, magnesium carbonate, zirconium oxide, cerium oxide, calcium carbonate, barium sulfate, calcium silicate, magnesium silicate, talc, mica, and synthetic mica; organic powders such as cellulose, cellulose acetate, silk, and starches; and biodegradable powders such as polylactic acid. Among them, particularly, more preferably inorganic powders such as silica, mica, and synthetic mica, and / or natural organic powders such as cellulose, silk, and starches, and one or more selected from these can be used. When these are contained, the natural skin color and the smoothness during application are excellent, and thus it is preferable.

[0105] In addition, it may be a compounded substance containing an inorganic powder such as a metal oxide or an organic powder such as a pigment inside, and its internal structure is not particularly limited.

[0106] As specific commercially available products, for example, as silica, Sillica micro bead P-1505 (manufactured by JGC Catalysts & Chemicals Ltd.) (average particle diameter: 7.7 μm), Sunsphere L-51 (manufactured by AGC Si-Tech Co., Ltd.) (average particle diameter: 5 μm), Sunsphere L-51 (manufactured by AGC Si-Tech Co., Ltd.) (average particle diameter: 3 μm), Godball E-90C (manufactured by Suzuki Oil & Fat Flavors Co., Ltd.) (average particle diameter: 30 μm), Sunsphere NP-200 (manufactured by AGC Si-Tech Co., Ltd.) (average particle diameter: 20 μm), Sunsphere NP-100 (manufactured by AGC Si-Tech Co., Ltd.) (average particle diameter: 10 μm), SunsphereNP-30 (manufactured by AGC Si-Tech Co., Ltd.) (average particle diameter: 4 μm), Silica Micro Bead N-1505 (manufactured by JGC Catalysts & Chemicals Ltd.) (average particle diameter: 10 μm), SILNO350 (manufactured by ABC NANOTECH Co., Ltd.) (average particle diameter: 9 μm), etc. can be mentioned. As cellulose, CELLULOBEADS D-5 (manufactured by Rengo Co., Ltd.) (average particle diameter: 10 μm) can be mentioned. As starch, medicinal corn starch (JPCS-YN) (manufactured by JAPAN CORN STARCH Co., Ltd.) (average particle diameter: 15 μm), etc. can be mentioned. As polylactic acid, MAKIBEADS ECO D-5 (manufactured by Daito Kasei Kogyo Co., Ltd.) (average particle diameter: 5 μm), etc. can be mentioned.

[0107] The powder used in the present invention may be pre-coated on the surface or may be kept in an untreated state, and there is no particular limitation.

[0108] In the sunscreen cosmetic of the present invention, an oil agent other than component (D) may be further contained, as long as it is an oil agent commonly used in cosmetics or the like, and there is no particular limitation, and it may be in any form of solid, paste or liquid.

[0109] It should be noted that in the sunscreen cosmetic of the present invention, although an organic ultraviolet absorber may be contained as an oil agent other than component (D), it is preferably substantially free of an organic ultraviolet absorber. Among them, as the organic ultraviolet absorber, although the following components may be contained, it is more preferably substantially free of them. In the present invention, when the content of the organic ultraviolet absorber is, for example, less than 5% by mass, 4%, 3%, 2%, or 1% based on the total amount of the sunscreen cosmetic, or when no organic ultraviolet absorber is contained, the effects of the present invention are further exerted, and thus it is preferred.

[0110] As the aforementioned organic ultraviolet absorber, specifically, for example, ethylhexyl methoxycinnamate, ethoxyethyl methoxycinnamate, a mixture of isopropyl methoxycinnamate and diisopropyl cinnamate, methylbis(trimethylsiloxysilyl) isopentyl trimethoxycinnamate, pentyl dimethylaminobenzoate, 2-ethylhexyl dimethylaminobenzoate, ethylene glycol salicylate, ethylhexyl salicylate, benzyl salicylate, homomenthyl salicylate, octocrylene, dimethyl diethyl benzylidene malonate, 2-ethylhexyl dimethoxyl benzylidene dioxoimidazolidine propionate, diethylamino hydroxybenzoyl hexyl benzoate, 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl) anilino]-1,3,5-triazine, cresol triazole trisiloxane, 4-tert-butyl-4'-methoxybenzoylmethane, 2-hydroxy-4-methoxybenzophenone, etc. can be cited.

[0111] Among these, in particular, it may contain one or more selected from ethylhexyl methoxycinnamate, ethylhexyl salicylate, dimethyl diethyl benzylidene malonate, diethylamino hydroxybenzoyl hexyl benzoate, 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl) anilino]-1,3,5-triazine, cresol triazole trisiloxane. The less the amount used, the more the effects of the present invention can be exerted.

[0112] The sunscreen cosmetic of the present invention can be prepared by a conventional method. It can be implemented in various forms such as emulsion, cream, paste, etc. In addition, it can be implemented in various forms such as an oil-in-water emulsion in which the oil phase forms the outer phase of the emulsion as the continuous phase, a water-in-oil emulsion in which the water phase forms the outer phase of the emulsion as the continuous phase, an oily composition containing only one phase of the oil phase, etc. From the viewpoint of achieving smoothness during application, an oil-in-water emulsion is preferred.

[0113] The sunscreen cosmetic of the present invention can be implemented, for example, in the form of products such as emulsions and creams, sunscreens, makeup primers, foundations, lipsticks, concealers, blushes, etc. It is preferably applied to the skin. Products with makeup effects such as foundations and makeup primers are more likely to exhibit excellent effects on natural skin color, so they are preferred. It can be applied to one or more selected from these. The present invention is expected to be a product that can exert a sunscreen effect.

[0114] The equipment used in the production of the sunscreen cosmetics of the present invention may be any equipment commonly used in the production of cosmetics, without particular limitation. Examples include Henschel mixers, kneaders, supermixers, media dispersers, roll mills, homogenizers, mortar mills, AGIDISPER, triple mixers, high-pressure dispersers, etc. Particularly in the dispersion process of component (A), component (B), and component (C), from the viewpoints of excellent dispersibility, high UV protection effect, and excellent natural skin color, a roll mill, a media disperser, or a mortar mill is more preferred.

[0115] It should be noted that the present invention [1] may appropriately add the technical features or technical content after the following [2]. In addition, the present technology may also adopt the following configurations or technical features.

[0116] [1] A sunscreen cosmetic or composition containing the following components (A) to (E):

[0117] (A) A metal oxide having an average particle diameter of 0.01 to 0.1 μm coated with a hydrophobizing agent;

[0118] (B) A metal oxide having an average particle diameter greater than 0.1 μm and less than 0.2 μm coated with a hydrophobizing agent;

[0119] (C) A metal oxide having an average particle diameter of 0.2 to 3.0 μm coated with a hydrophobizing agent;

[0120] (D) A non-volatile oil that is liquid at 25°C;

[0121] (E) A surfactant,

[0122] The metal oxides of the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C) may be the same or different, and are one or more selected from titanium oxide and zinc oxide.

[0123] The total content of the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C) is 10 to 45% by mass.

[0124] · [2] The sunscreen cosmetic according to the aforementioned [1], which further contains a volatile hydrocarbon oil as component (F).

[0125] · [3] The sunscreen cosmetic or composition according to the aforementioned [1] or [2], wherein the aforementioned component (A) is one or more selected from zinc oxide and titanium oxide coated with iron oxide.

[0126] · [4] The sunscreen cosmetic or composition according to any one of the aforementioned [1] to [3], wherein the content of the aforementioned component (B) is 2 to 25% by mass.

[0127] ·[5] The sunscreen cosmetic or composition according to any one of [1] to [4] above, wherein the content of the foregoing component (C) is 1 to 15% by mass.

[0128] ·[6] The sunscreen cosmetic or composition according to any one of [1] to [5] above, wherein the mass ratio of the content of the foregoing component (A) to component (B) is (A):(B) = 6 to 25:2 to 20.

[0129] ·[7] The sunscreen cosmetic or composition according to any one of [1] to [6] above, wherein the mass ratio of the content of the foregoing component (B) to component (C) is (B):(C) = 2 to 20:2 to 7.

[0130] ·[8] The sunscreen cosmetic or composition according to any one of [1] to [7] above, wherein the mass ratio of the content of the foregoing component (A), component (B), and component (C) is (A):(B):(C) = 6 to 25:2 to 20:2 to 7.

[0131] ·[9] The sunscreen cosmetic or composition according to any one of [1] to [8] above, wherein the foregoing component (E) is one or more selected from polyhydroxystearic acid, PEG-30 dimer hydroxystearate, and (acrylate / ethylhexyl acrylate / polydimethylsiloxane methacrylate) copolymer.

[0132] ·

[10] The sunscreen cosmetic or composition according to any one of [1] to [9] above, wherein the hydrophobizing agent for the foregoing component (A) and component (B) is one or more selected from polydimethylsiloxane, alkylalkoxysilane, polyglycerol fatty acid ester, acyl amino acid or its salt, and fatty acid or its salt.

[0133] ·

[11] The sunscreen cosmetic or composition according to any one of [1] to

[10] above, wherein the ratio of the total content mass of the foregoing component (A), component (B), and component (C) to the content mass of the foregoing component (D) is [(A)+(B)+(C)] / (D) = 0.5 to 5.

[0134] ·

[12] The sunscreen cosmetic or composition according to any one of [1] to

[11] above, wherein the total average particle size of the foregoing component (A), component (B), and component (C) is 60 to 240 nm.

[0135] ·

[13] The sunscreen cosmetic or composition according to any one of [1] to

[12] above, wherein the foregoing sunscreen cosmetic does not contain 5% by mass or more of an organic ultraviolet absorber, or substantially does not contain an organic ultraviolet absorber, or does not contain an organic ultraviolet absorber.

[0136] ·

[14] The sunscreen cosmetic or composition according to any one of [1] to

[13] above further contains inorganic powder and / or organic powder in addition to the aforementioned component (A), the aforementioned component (B), and the aforementioned component (C). The aforementioned inorganic powder includes one or more selected from silica, talc, mica, and synthetic mica, and the aforementioned organic powder includes one or more selected from organic powders such as cellulose, silk, and starch.

[0137] ·

[15] The sunscreen cosmetic or composition according to any one of [1] to

[14] above, wherein the aforementioned sunscreen cosmetic is also a makeup cosmetic.

[0138] Examples

[0139] Hereinafter, examples are given to illustrate the present invention in detail. It should be noted that these do not limit the present invention.

[0140] Examples 1 to 28 and Comparative Examples 1 to 7: Water-in-oil emulsified cosmetics (liquid foundation)

[0141] Prepare liquid foundations having the compositions shown in Tables 1 to 5 according to the following manufacturing method. For the obtained liquid foundations, evaluations of "UVB protection ability", "UVA protection ability", "Comprehensive evaluation of ultraviolet protection ability", "Natural skin color", and "Smoothness during application" are carried out using the following evaluation methods. The results are shown together in Tables 1 to 5.

[0142] [Table 1]

[0143]

[0144] *1: MZX-304OTS (manufactured by TAYCA Co., Ltd.)

[0145] *2: MZ-505M (manufactured by TAYCA Co., Ltd.)

[0146] *3: MZ-505T (manufactured by TAYCA Co., Ltd.)

[0147] *4: SMT-500SAM (manufactured by TAYCA Co., Ltd.)

[0148] *5: MT-01 (manufactured by TAYCA Co., Ltd.)

[0149] *6: SP Solaveil XTP1 MBAL (manufactured by CRODA Corporation)

[0150] *10: Disodium stearoyl glutamate 3% treated MP-1133 (manufactured by TAYCA Co., Ltd.)

[0151] *16: FINSOLV TN (manufactured by Innospec Active Chemicals)

[0152] *17: Salacos913 (manufactured by NISSHIN Oillio)

[0153] *18: PALMESTER 1543 (manufactured by PALMOLEO)

[0154] *19: Salacos HS-6C (manufactured by NISSHIN Oillio)

[0155] *22: KF-6028P (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0156] *23: KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0157] *24: ABIL EM 97S (manufactured by EVONIK)

[0158] *25: OTS-2RED R-516P (manufactured by Daito Kasei Kogyo Co., Ltd.)

[0159] *26: OTS-2YELLOW YP-1200P (manufactured by Daito Kasei Kogyo Co., Ltd.)

[0160] *27: OTS-2BLACK BL-100P (manufactured by Daito Kasei Kogyo Co., Ltd.)

[0161] *28: SA-TALC Hi-Filler K-5 (manufactured by Miyoshi Kasei Co., Ltd.)

[0162] *29: BENTONE 38V BC (manufactured by Elementis)

[0163] *30: ISODODECANE (manufactured by IMCD)

[0164] *31: BELSIL DM 1PLUS (manufactured by Wacker Asahikasei Silicone)

[0165] [Table 2]

[0166]

[0167] *7: Sodium stearoyl glutamate 3% treated MP-18 (manufactured by TAYCA Co., Ltd.)

[0168] *8: MPY-18M (manufactured by TAYCA Co., Ltd.)

[0169] *9: Solaveil XT-100 (manufactured by CRODA, 47% dispersion of (C12-15) alkyl benzoate)

[0170] [Table 3]

[0171]

[0172] *11: Lecithin 0.5% treated MP-1133 (manufactured by TAYCA Co., Ltd.)

[0173] *12: Sodium lauroyl glutamate lysine 1% treated MP-1133 (manufactured by TAYCA Co., Ltd.)

[0174] *13: Triethoxysilane octyl 2% treated MP-1133 (manufactured by TAYCA Co., Ltd.)

[0175] *14: MPY-70M (manufactured by TAYCA Co., Ltd.)

[0176] *15: MPY-100M (manufactured by TAYCA Co., Ltd.)

[0177] [Table 4]

[0178]

[0179] *20: KP-578 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0180] *21: CITHROL DPHS-SO-(JP) (manufactured by CRODA)

[0181] [Table 5]

[0182]

[0183] [Manufacturing method: Tables 1-5] (Examples 1-28 and Comparative Examples 1-7: Do not contain ingredients not described.)

[0184] (1): Use a roll mill to uniformly disperse Ingredients 1-30.

[0185] (2): Use a roll mill to uniformly disperse Ingredients 31-34.

[0186] (3): Add (2) and Ingredient 35 to (1), and after uniformly dispersing.

[0187] (4): Add Ingredients 36-38 to (3), and emulsify using a triple mixer to obtain a water-in-oil type emulsified liquid foundation for cosmetics.

[0188] (Evaluation method)

[0189] I. UVB Defense Ability

[0190] After applying the prepared water-in-oil emulsion cosmetic to each PMMA plate sample at 2 mg / cm 2 and allowing it to stand for 15 minutes, the transmittance in the UVA and UVB wave regions (290 - 450 nm) was measured using an SPF analyzer (UV-2000S manufactured by Labsphere), and the determination was made using the transmittance at 300 nm.

[0191] <Evaluation Criteria>

[0192] (Determination): (Evaluation)

[0193] ◎ (Excellent): Transmittance is 0 or more and 0.4 or less

[0194] 〇 (Good): Transmittance is greater than 0.4 and 0.7 or less

[0195] △ (Slightly Unqualified): Transmittance is greater than 0.7 and 0.9 or less

[0196] × (Unqualified): Transmittance is greater than 0.9

[0197] II. UVA Defense Ability

[0198] Apply the prepared bulk to the PMMA substrate, measure the transmittance in the 290 - 450 nm region using an SPF analyzer, and make the determination using the transmittance at 380 nm.

[0199] <Evaluation Criteria>

[0200] (Determination): (Evaluation)

[0201] ◎ (Excellent): Transmittance is greater than 0 and 6 or less

[0202] 〇 (Good): Transmittance is greater than 6 and 13 or less

[0203] △ (Qualified): Transmittance is greater than 13 and 19 or less

[0204] × (Unqualified): Transmittance is greater than 19

[0205] III. Comprehensive Evaluation of UV Defense Ability

[0206] Evaluate the UV defense ability as a comprehensive evaluation combining the above I. UVB defense ability and II. UVA defense ability. Record ◎ (excellent) as 7 points, 〇 (good) as 5 points, △ (qualified) as 3 points, and × (unqualified) as 1 point, and evaluate at 6 levels based on the total score.

[0207] <Determination Criteria>

[0208] (Judgment): (Evaluation)

[0209] AA: Total score is greater than 12 points

[0210] A: Total score is greater than 8 points and less than or equal to 12 points

[0211] B: Total score is greater than 6 points and less than 8 points

[0212] C: Total score is greater than 4 points and less than 6 points

[0213] D: Total score is less than or equal to 4 points

[0214] IV. Natural skin color

[0215] Ten professional cosmetic judges conduct sensory evaluation on the naturalness of skin color when each cosmetic is applied to the face. When the skin color is natural, it is recorded as "6". When there are phenomena such as a reddish tint, a bluish tint, or excessive covering power in the skin color, it is evaluated according to the degree, and the unnatural situation is recorded as "1", and a 6-level evaluation is carried out.

[0216] <Evaluation criteria>: Natural skin color

[0217]

[0218] <Judgment criteria>

[0219] (Judgment): (Evaluation): Natural skin color

[0220] AA: Average score is 5.0 or more and less than 6.0

[0221] A: Average score is 4.2 or more and less than 5.0

[0222] B: Average score is 3.5 or more and less than 4.2

[0223] C: Average score is 2.2 or more and less than 3.5

[0224] D: Average score is 1.0 or more and less than 2.2

[0225] It should be noted that after applying 0.1 g to a 20 mm × 20 mm black artificial leather and allowing it to stand for 15 minutes, the spectral reflectance (%) in the visible light region (400 - 700 nm) is measured every 10 nm using a spectrocolorimeter (Spectro1TM manufactured by KLV Co., Ltd.).

[0226] Evaluate the cumulative reflectance % in the range of 400 - 500 nm (blue), the cumulative reflectance % in the range of 600 - 700 nm (red), and the ratio of 400 - 500 nm (blue) / 600 - 700 nm (red).

[0227] The following preferred ranges are the same as the above preferred ranges AA to B.

[0228] 400 - 500 nm ((blue): 23.0 - 35.0%

[0229] 600 - 700 nm (red): 35.0 - 65.0%

[0230] Ratio of 400 - 500 nm (blue) / 600 - 700 nm (red): 0.4 - 0.6

[0231] Figure 2 Among them, as representative examples, the visible light spectral reflectance % of the coating film (Examples 1 and 7, Comparative Examples 1, 2, 3, and 4) is shown.

[0232] V. Smoothness during application

[0233] Ten professional judges conducted a sensory evaluation of the smoothness of the application feeling when each cosmetic was applied to the face. The case with the smoothest application feeling was recorded as "6", and the case with the least smooth application feeling was recorded as "1", and the evaluation was carried out on a 6 - level scale.

[0234] <Evaluation criteria>: Smoothness during application

[0235]

[0236] <Judgment criteria>: Smoothness during application

[0237] (Judgment): (Evaluation)

[0238] AA: The average score is 5.0 or more and less than 6.0

[0239] A: The average score is 4.2 or more and less than 5.0

[0240] B: The average score is 3.5 or more and less than 4.2

[0241] C: The average score is 2.2 or more and less than 3.5

[0242] D: The average score is 1.0 or more and less than 2.2

[0243] The water - in - oil emulsified cosmetics (liquid foundation) of Examples 1 to 28 shown in Tables 1 to 5 are excellent in the evaluations of "UVA defense ability", "UVB defense ability", "Comprehensive evaluation of ultraviolet defense ability", "Natural skin color", and "Smoothness during application".

[0244] The water - in - oil emulsified cosmetics (liquid foundation) described in Comparative Examples 1 to 7 were evaluated as follows.

[0245] Comparative Example 1, in which Component (A) was replaced with Component (B), had high "UVA protection ability", "UVB protection ability", and "comprehensive evaluation of UV protection ability", but was slightly inferior in terms of "natural skin color" and "smoothness during application".

[0246] Comparative Example 2, in which Component (B) was replaced with Component (A), had low "UVA protection ability" and "UVB protection ability", insufficient "comprehensive evaluation of UV protection ability", and poor "smoothness during application".

[0247] Comparative Example 3, which did not contain Component (A) and Component (B) and was replaced with Component (C), had slightly lower "UVB protection ability", excessive covering power in terms of "natural skin color", and insufficient "smoothness during application".

[0248] Comparative Example 4, which did not contain Component (A) and Component (C) and was replaced with Component (B), had unexpectedly high "comprehensive evaluation of UV protection ability", but the "natural skin color" was unnaturally pale and insufficient in terms of "smoothness during application".

[0249] Comparative Example 5, which did not contain Component (B) and Component (C) and was replaced with Component (A), had low "UVA protection ability", insufficient "comprehensive evaluation of UV protection ability", and insufficient "natural skin color" and "smoothness during application".

[0250] Comparative Example 6, in which the total content mass of Components (A) to (C) was as low as 7.46%, had low "UVA protection ability", insufficient "comprehensive evaluation of UV protection ability", and did not have the effect of being able to impart "natural skin color".

[0251] Comparative Example 6, in which the total content mass of Components (A) to (C) was as high as 51.1%, had slightly poor "UVB protection ability" and was insufficient in terms of "natural skin color" and "smoothness during application".

[0252] Example 30: Water-in-oil sunscreen cosmetic

[0253]

[0254]

[0255] *32: Solaveil HTP-1 (manufactured by Croda, average particle size 0.16 μm)

[0256] *33: Dextrin palmitate / ethylhexanoate 2.7% treated MP-1133 (manufactured by TAYCA Co., Ltd.)

[0257] *34: CETIOL SN-1 (manufactured by BASF, molecular weight 368.64)

[0258] *35: CERAPHYL 28 (manufactured by Ashland Inc., molecular weight 314)

[0259] *36: ABIL EM-90 (manufactured by EVONIK Corporation)

[0260] *37: KF-96-2CS (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0261] *38: KF-96-6CS (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0262] *39: CELLULOBEARDSD-10 (manufactured by Daito Kasei Kogyo Co., Ltd.)

[0263] *40: HCS160M5 (manufactured by JGC Catalysts & Chemicals Ltd.)

[0264] (Manufacturing method)

[0265] (1): Roll-disperse components 1 to 6 uniformly.

[0266] (2): Add components 7 to 14 to (1), and after uniform dispersion.

[0267] (3): Add components 15 to 19 to (2), and emulsify using a triple mixer to obtain a water-in-oil type sunscreen cosmetic.

[0268] The water-in-oil type sunscreen cosmetic of Example 30 is excellent in "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application".

[0269] Example 31: Water-in-oil type sunscreen cosmetic

[0270]

[0271] *41: MT-150EX (manufactured by TAYCA Co., Ltd., average particle size 15 nm)

[0272] *42: MIRITOL GTEH (manufactured by BASF SE, molecular weight 470.7)

[0273] *43: COSMOL 41V (manufactured by NISSHIN Oillio Group, Ltd.)

[0274] *44: CRS-75 (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.)

[0275] *45: AMIHOPE LL (manufactured by Ajinomoto Co., Inc.)

[0276] *46: TMS-05DCA (manufactured by TAYCA Co., Ltd.)

[0277] (Manufacturing method)

[0278] (1): Roll and disperse components 1 - 6 evenly.

[0279] (2): Add components 7 - 12 to (1), and after dispersing evenly.

[0280] (3): Add components 13 - 16 to (2), and emulsify using a triple mixer to obtain a water-in-oil type sunscreen cosmetic.

[0281] The "UVA defense ability", "UVB defense ability", "Comprehensive evaluation of UV defense ability", "Natural skin color", and "Smoothness during application" of the water-in-oil type sunscreen cosmetic of Example 31 are excellent.

[0282] Example 32: Water-in-oil type sunscreen makeup base

[0283]

[0284]

[0285] *47: Myristic acid 5% treated MZ-300 (manufactured by TAYCA Co., Ltd.)

[0286] *48: Disodium stearoyl glutamate 3% treated R-516P (manufactured by Titan Kogyo, Ltd.)

[0287] *49: Disodium stearoyl glutamate 3% treated YP-1200P (manufactured by Titan Kogyo, Ltd.)

[0288] *50: Disodium stearoyl glutamate 3% treated BL-100P (manufactured by Titan Kogyo, Ltd.)

[0289] *51: SILFORM FLEXIBLE RESIN (manufactured by Momentive)

[0290] (Manufacturing method)

[0291] (1): Roll and disperse components 1 - 9 and a part of 12 evenly.

[0292] (2): Add the remainder of components 10 - 12 and 13 to (1), and after dispersing evenly.

[0293] (3): Add components 14 - 16 to (2), and emulsify using a triple mixer to obtain a water-in-oil type sunscreen makeup base cosmetic.

[0294] The "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application" of the water-in-oil sunscreen makeup base of Example 32 are excellent.

[0295] Example 33: Oil-in-water sunscreen cosmetic

[0296]

[0297]

[0298] *52: MTY-100SAS (manufactured by TAYCA Co., Ltd.) (average particle size 15 nm)

[0299] *53: Treated MZ-500 (manufactured by TAYCA Co., Ltd.) with 10% polydimethylsiloxane and 3% triethoxysilane

[0300] *54: KF-6019 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0301] *55: RISOCAST ODSHS (manufactured by KOKYU ALCOHOL KOGYO CO., LTD.)

[0302] *56: PLANDOOL-S (manufactured by Nippon Fine Chemical Co., Ltd.)

[0303] *57: Sunfact GMR-90 (manufactured by Sun Chemical Corporation)

[0304] *58: HCO-80 (manufactured by *Nippon Surfactant Industries Co., Ltd.)

[0305] *59: HCO-10 (manufactured by *Nippon Surfactant Industries Co., Ltd.)

[0306] *60: SIMULGEL EG QD (manufactured by SEPPIC)

[0307] *61: TREMOIST-TP (manufactured by Nippon Fine Chemical Co., Ltd.)

[0308] (Manufacturing method)

[0309] (1): Roll-disperse Components 1 to 8 uniformly.

[0310] (2): Add Components 9 to 14 to (1) and disperse uniformly at 80°C.

[0311] (3): Uniformly disperse Components 15 to 23 at 80°C, add (2), and emulsify using a triple mixer to obtain an oil-in-water type sunscreen cosmetic.

[0312] The "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application" of the water-in-oil type sunscreen in Example 33 are excellent.

[0313] Example 34: Oil-in-water type liquid foundation (labeled with SPF·PA)

[0314]

[0315]

[0316] *62: XZ-100F (manufactured by Sakai Chemical Industry Co., Ltd.)

[0317] *63: KP-541 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0318] *64: Cosmol 525 (manufactured by NISSHIN Oillio Group, molecular weight 356.5)

[0319] *65: CARNATION (manufactured by SONNEBORN)

[0320] *66: HOSTAPHAT KW340D (manufactured by Clariant·Japan)

[0321] *67: Godball D11-796C (manufactured by Suzuki Oil & Fat Co., Ltd.)

[0322] (Manufacturing method)

[0323] (1): Uniformly roll-disperse Components 1 to 5.

[0324] (2): Uniformly roll-disperse Components 15 to 21.

[0325] (3): Add Components 6 to 14 to (1) and uniformly disperse at 80°C.

[0326] (4): Uniformly disperse Components 22 to 27 at 80°C in (2), add (3), and emulsify using a triple mixer to obtain an oil-in-water type liquid foundation.

[0327] The "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application" of the water-in-oil type liquid foundation in Example 35 are excellent.

[0328] Example 36: Water-in-Oil Solid Concealer (Marked with SPF·PA)

[0329]

[0330]

[0331] *68: JNP-81 (manufactured by Japan Natural Products Co., Ltd.)

[0332] (Manufacturing method)

[0333] (1): Roll and disperse Components 1 to 11 evenly.

[0334] (2): Add Components 12 to 16 to (1) and disperse evenly at 90°C.

[0335] (3): Disperse Components 17 to 20 evenly in (2) at 90°C, add (2), emulsify using a triple mixer, and fill into an airtight stick container to obtain a water-in-oil stick concealer.

[0336] The "UVA defense ability", "UVB defense ability", "Comprehensive evaluation of UV defense ability", "Natural skin color", and "Smoothness during application" of the water-in-oil liquid foundation in Example 36 are excellent.

[0337] Example 37: Oil-based Liquid Foundation (Marked with SPF·PA)

[0338]

[0339]

[0340] *69: Sodium Lauroyl Glutamate Lysine 3% Treated R-516P (manufactured by Titan Kogyo, Ltd.)

[0341] *70: Sodium Lauroyl Glutamate Lysine 3% Treated YP-1200P (manufactured by Titan Kogyo, Ltd.)

[0342] *71: Sodium Lauroyl Glutamate Lysine 3% Treated BL-100P (manufactured by Titan Kogyo, Ltd.)

[0343] *72: ABIL WAX 9840 (manufactured by EVONIK)

[0344] (Manufacturing method)

[0345] (1): Roll and disperse Components 1 to 9 evenly.

[0346] (2): Add Component 10 - 16 to (1) and disperse evenly to obtain an oil-in-water liquid foundation.

[0347] The "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application" of the oil-based liquid foundation of Example 37 are excellent.

[0348] Example 38: Oil-based solid foundation (labeled with SPF·PA)

[0349]

[0350] *73: KF-54 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0351] *74: Rheopearl ISK2 (manufactured by Chiba Flour Milling Co., Ltd.)

[0352] *75: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0353] *76: KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0354] (Manufacturing method)

[0355] (1): Perform roll dispersion on Components 1 - 10 evenly.

[0356] (2): Add Components 11 - 15 to (1), disperse evenly, dissolve at 90°C, and pour into an airtight tank container to obtain an oil-based solid foundation.

[0357] The "UVA protection ability", "Natural skin color", and "Smoothness during application" of the oil-based solid foundation of Example 38 are excellent.

[0358] Example 39: Water-in-oil sunscreen cosmetic

[0359]

[0360] (Manufacturing method)

[0361] (1): Heat Components 3 and 4, mix 1 and 2 evenly, and perform roll dispersion.

[0362] (2): Add Components 5, 6, and 7 - 15 dissolved in (1) and disperse evenly.

[0363] (3): Add Components 16 - 20 to (2) and emulsify using a triple mixer to obtain a water-in-oil sunscreen cosmetic.

[0364] The "UVA protection ability", "UVB protection ability", and "Comprehensive evaluation of UV protection ability" of the water-in-oil sunscreen cosmetic of Example 39 are excellent.

[0365] Example 40: Water-in-oil type blush (labeled with SPF·PA)

[0366]

[0367]

[0368] *77: PELEMOL 6GPR (manufactured by PHOENIX CHMICAL INC)

[0369] *78: JEECHEM NDA-LC (manufactured by JEEN INTERNATIONAL CORPORATION)

[0370] *79: PARAFOL 12-97 (manufactured by SASOL LTD)

[0371] *80: Unifilma HVY (manufactured by Chiba Flour Milling Co., Ltd.)

[0372] *81: Substance obtained by coating 98% of *39 CELLULOBEARDSD-10 (manufactured by Daito Kasei Kogyo Co., Ltd.) with 2% of myristic acid using dry treatment

[0373] (Manufacturing method)

[0374] (1): Uniformly mix components 8 - 10 in 1 - 7, and perform roll dispersion.

[0375] (2): Add components 14 - 16 and 11 - 13 dissolved in (1), and after uniformly dispersing.

[0376] (3): Add components 18 - 22 to (2), and perform emulsification using a triple mixer to obtain a water-in-oil type blush.

[0377] The "UVA defense ability", "UVB defense ability", "Comprehensive evaluation of UV defense ability", "Natural skin color", and "Smoothness during application" of the water-in-oil type blush in Example 39 are excellent.

[0378] Example 40: Solid powder foundation (labeled with SPF·PA)

[0379]

[0380]

[0381] *82: Micromica MK-200K (manufactured by Katakura&Co-op Agri Corporation)

[0382] *83: KF-6018 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0383] *84: Sensiva SC50 (manufactured by Schulke & Mayr GmbH)

[0384] (Manufacturing method)

[0385] (1): Use a Henschel mixer (manufactured by Mitsui Miike Co., Ltd.) to uniformly disperse Components 1 to 11.

[0386] (2): Uniformly mix and dissolve Components 12 to 18.

[0387] (3): While stirring (1) using a Henschel mixer, add (2) and uniformly disperse.

[0388] (4): Grind (3) using a grinder.

[0389] (5): Mix (4) with an appropriate amount of isododecane to obtain a slurry-like mixture.

[0390] (6): Fill (5) into a metal dish, perform compression molding, and then dry it to remove the solvent to obtain a solid powder foundation.

[0391] The "UVA protection ability", "UVB protection ability", "Comprehensive evaluation of UV protection ability", "Natural skin color", and "Smoothness during application" of the solid powder foundation of Example 40 (labeled with SPF·PA) are excellent.

Claims

1. A sunscreen cosmetic, which contains the following components (A) to (E): (A) A metal oxide having an average particle diameter of 0.01 to 0.1 μm coated with a hydrophobizing agent; (B) A metal oxide having an average particle diameter greater than 0.1 μm and less than 0.2 μm coated with a hydrophobizing agent; (C) A metal oxide having an average particle diameter of 0.2 to 3.0 μm coated with a hydrophobizing agent; (D) A non-volatile oil that is liquid at 25°C; (E) A surfactant, The metal oxides of the component (A), the component (B), and the component (C) may be the same or different, and are one or more selected from titanium oxide and zinc oxide, The total content by mass of the component (A), the component (B), and the component (C) is 10 to 45% by mass.

2. The sunscreen cosmetic according to claim 1, which further contains a volatile hydrocarbon oil as the component (F).

3. The sunscreen cosmetic according to claim 1 or 2, wherein The metal oxide of the component (A) is one or more selected from zinc oxide and titanium oxide coated with iron oxide.

4. The sunscreen cosmetic according to claim 1 or 2, wherein, The content of the component (B) is 2 to 25% by mass.

5. The sunscreen cosmetic according to claim 1 or 2, wherein The content of the component (C) is 1 to 15% by mass.

6. The sunscreen cosmetic according to claim 1 or 2, wherein, The mass ratio of the content of the component (A) to the component (B) is (A):(B) = 6 to 25:2 to 20.

7. The sunscreen cosmetic according to claim 1 or 2, wherein The mass ratio of the content of the component (B) to the component (C) is (B):(C) = 2 to 20:2 to 7.

8. The sunscreen cosmetic according to claim 1 or 2, wherein, The mass ratio of the content of the component (A), the component (B), and the component (C) is (A):(B):(C) = 6 to 25:2 to 20:2 to 7.

9. The sunscreen cosmetic according to claim 1 or 2, wherein, The component (E) is one or more selected from polyhydroxystearic acid, PEG-30 dimer hydroxystearate, and (acrylate / ethylhexyl acrylate / polydimethylsiloxane methacrylate) copolymer.

10. The sunscreen cosmetic according to claim 1 or 2, wherein, The hydrophobizing agents for the component (A) and the component (B) are one or more selected from polydimethylsiloxane, alkylalkoxysilane, polyglycerol fatty acid ester, acyl amino acid or its salt, and fatty acid or its salt.

11. The sunscreen cosmetic according to claim 1 or 2, wherein, The ratio of the total content by mass of the component (A), the component (B), and the component (C) to the content of the component (D) is [(A)+(B)+(C)] / (D) = 0.5 to 5.

12. The sunscreen cosmetic according to claim 1 or 2, wherein, The total average particle diameter of the component (A), the component (B), and the component (C) is 60 to 240 nm.

13. The sunscreen cosmetic according to claim 1 or 2, wherein, The sunscreen cosmetic does not contain more than 5% by mass of an organic ultraviolet absorber, or does not contain an organic ultraviolet absorber.

14. The sunscreen cosmetic according to claim 1 or 2, which further contains an inorganic powder and / or an organic powder other than the component (A), the component (B), and the component (C), The inorganic powder contains one or more selected from silica, talc, mica, and synthetic mica, The organic powder contains one or more selected from cellulose, silk, and starch.

15. The sunscreen cosmetic according to claim 1 or 2, wherein, The sunscreen cosmetic is also a color cosmetic.

Images