Ultraviolet protection cosmetic

Abstract

To provide an ultraviolet protection cosmetic that exhibits a high ultraviolet protection effect and transparency.SOLUTION: An ultraviolet protection cosmetic containing an ultraviolet scattering agent is provided, the cosmetic containing titanium dioxide (A) having an average particle diameter of 0.2 μm or more and 2.0 μm or less. Therein, combining the titanium dioxide (A) with the ultraviolet scattering agent achieves an excellent ultraviolet protection effect and transparency.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present disclosure relates to UV protective cosmetics. [Background technology]

[0002] Generally, ultraviolet rays are broadly classified into the UV-C range of 200-280 nm, which is absorbed by the ozone layer; the UV-B range of 280-320 nm, which causes reddening of the skin upon exposure, known as sunburn; and the UV-A range of 320-400 nm, which causes darkening of the skin after the redness has subsided, known as suntan. Due to the harmful effects of UV-A and UV-B on the skin as described above, there is a high demand for UV protective cosmetics.

[0003] The UV protection agents incorporated into UV protective cosmetics are broadly divided into UV absorbers, which are organic compounds, and UV scattering agents, which are inorganic metal oxides such as fine particle titanium oxide, fine particle zinc oxide, and fine particle cerium oxide. From the perspective of transparency after application and UV protection effect, UV scattering agents preferably have a small scattering effect in the visible range and a large scattering effect in the UV range, and are generally designed to have a primary particle size of 100 nm or less.

[0004] While UV protection agents are required to have a high UV protection effect, there are issues with incorporating a high amount of UV protection agent, such as a poor feel to the skin and a white cast after application.

[0005] Therefore, UV protective cosmetics have been developed that contain ingredients that improve the UV protective effect, thereby providing high UV protective effects even when the amount of UV protective agent is reduced. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-205644 [Patent Document 2] Patent Publication No. 2021-102557 [Patent Document 3] Japanese Patent Publication No. 2024-037616 Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Documents 1 and 2, spherical titanium oxide or hollow silica particles are used as SPF booster agents, and the SPF boosting effect on UV absorbers is confirmed, but the effect on UV scattering agents is not confirmed.

[0008] In Patent Document 3, the use of a powder derived from grape seed extract as an SPF booster agent has been confirmed to have an SPF boosting effect on ultraviolet absorbers and ultraviolet scattering agents, but in order to achieve an SPF value of 50 or more, it was necessary to use an ultraviolet absorber and an ultraviolet scattering agent in combination.

[0009] Furthermore, although all of the above patent documents confirm the effect on SPF, which is an index of protection against UV-B among ultraviolet rays, they have not confirmed the effect on UVAPF, which is an index of protection against UV-A. [Means for solving the problem]

[0010] An example of the present disclosure is as follows: [Section 1] An ultraviolet protective cosmetic containing an ultraviolet scattering agent, (A) Titanium oxide having an average particle size of 0.2 μm or more and 2.0 μm or less A cosmetic comprising: [Section 2] Item 2. The UV protective cosmetic composition according to Item 1, wherein the UV scattering agent is at least one selected from titanium oxide and zinc oxide other than (A). [Effects of the Invention]

[0011] The UV protective cosmetic composition of the present disclosure has high UV protective effect and transparency due to the incorporation of a UV scattering agent and (A) titanium oxide having an average particle size of 0.2 μm or more and 2.0 μm or less in combination. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present disclosure will be described in detail below. Note that the units of content are all % by weight unless otherwise specified.

[0013] The UV protective cosmetic composition according to the present disclosure is a UV protective cosmetic composition containing an UV scattering agent, (A) Contains titanium oxide having an average particle size of 0.2 μm or more and 2.0 μm or less. The UV protective cosmetic composition according to the present disclosure has high UV protection effect and transparency.

[0014] <(A) Titanium oxide> The UV protective cosmetic composition according to the present disclosure contains titanium oxide (A) having an average particle size of 0.2 μm or more and 2.0 μm or less.

[0015] The shape of the titanium oxide (A) is not particularly limited, and examples thereof include granular, rod-like, strip-like, spindle-like, sea urchin-like, peanut-like, and irregular shapes, with the sea urchin-like or peanut-like shapes being preferred.

[0016] To improve dispersion stability and durability in the dispersion medium during the production of cosmetics, titanium oxide (A) can be coated on its particle surface with a hydrous oxide or oxide of a metal such as aluminum, silicon, zirconium, iron, cerium, or tin, although there are no limitations on the metal salts used for this purpose. Furthermore, it is useful to subject these titanium oxides to a water- and / or oil-repellent treatment before blending them into cosmetics. The water- and / or oil-repellent treatment can be achieved by treating with silicone compounds such as dimethylpolysiloxane and methylhydrogenpolysiloxane; silane-, titanate-, aluminum-, or zirconium-based coupling agents; fluorine compounds such as perfluoroalkyl phosphate compounds; hydrocarbons; lecithin; amino acids; polyethylene; wax; or metallic soaps.

[0017] The number-average particle diameter of titanium oxide (A) may be 0.15 μm or more, 0.2 μm or more, 0.5 μm or more, 0.8 μm or more, or 1.0 μm or more, preferably 0.2 μm or more, and more preferably 0.8 μm or more. Alternatively, it may be 3.0 μm or less, 2.5 μm or less, 2.0 μm or less, 1.8 μm or less, 1.5 μm or less, 1.0 μm or less, 0.5 μm or less, or 0.2 μm or less, preferably 2.5 μm or less, more preferably 1.5 μm or less, and even more preferably 1.0 μm or less. It is preferable that the number-average particle diameter of titanium oxide (A) be within the above range, from the viewpoint of optimally achieving the effects of the present disclosure.

[0018] Commercially available titanium oxide (A) products include ST-705SA (number average particle diameter: 0.25 μm, manufactured by Titan Kogyo Co., Ltd.), ST-710EC (number average particle diameter: 0.3 μm, manufactured by Titan Kogyo Co., Ltd.), ST-750SA (number average particle diameter: 1.0 μm, manufactured by Titan Kogyo Co., Ltd.), ST-750EC (number average particle diameter: 1.0 μm, manufactured by Titan Kogyo Co., Ltd.), and MP-100 (number average particle diameter: 1.0 μm, manufactured by Teika Corporation).

[0019] The amount of titanium oxide (A) in the cosmetic is preferably 3% or more, more preferably 5% or more, from the viewpoint of high UV protection effect and transparency, and is preferably 20% or less, more preferably 10% or less.

[0020] <UV scattering agent> The UV protective cosmetic composition according to the present disclosure contains an UV scattering agent.

[0021] Examples of the ultraviolet scattering agent include metal oxides such as titanium oxide other than (A), zinc oxide, iron oxide, and cerium oxide, and are preferably titanium oxide other than (A) and zinc oxide, and more preferably zinc oxide. These may be used alone, or preferably two or more types including zinc oxide are used in combination.

[0022] From the viewpoint of ultraviolet protection effect, the ultraviolet scattering agent preferably has a number-average particle size of 10 nm or more and less than 150 nm, more preferably 15 nm or more and less than 100 nm, and even more preferably 20 nm or more and less than 80 nm. The shape of these particles is not particularly limited, and examples thereof include granular, rod-like, strip-like, spindle-like, sea urchin-like, peanut-like, and irregular shapes.

[0023] The ultraviolet scattering agent is preferably surface-coated, for example, with a silicone treatment, an alkyl treatment, an alkylsilane treatment, a metal soap treatment, a water-soluble polymer treatment, an amino acid treatment, an acylated amino acid treatment, a lecithin treatment, an organic titanate treatment, a polyol treatment, an acrylic resin treatment, a methacrylic resin treatment, or a urethane resin treatment.

[0024] The amount of the ultraviolet scattering agent is preferably 3% or more, more preferably 5% or more, from the viewpoint of high ultraviolet protection effect and transparency in the cosmetic product, and is preferably 30% or less, more preferably 15% or less, from the viewpoint of high ultraviolet protection effect and transparency in the cosmetic product.

[0025] In the present disclosure, the number-average particle diameter is measured using a transmission electron microscope (product name: JEM-2100, manufactured by JEOL Ltd.) at an accelerating voltage of 80 kV and a magnification of 50,000. One hundred primary particles in the image are randomly sampled, and their particle diameters (average values ​​of major and minor axes) are measured. The number average of the 100 particles is calculated, which can be used as the number-average particle diameter.

[0026] [Other ingredients] Furthermore, the cosmetic preparation of the present disclosure may contain other ingredients commonly used in cosmetics, such as water, surfactants, liquid oils, alcohols, powders other than titanium oxide (A) and UV protection agents, gelling agents and thickeners, antiperspirants, moisturizers, antibacterial agents, preservatives, antioxidants, pH adjusters, chelating agents, fragrances, refreshing agents, anti-inflammatory agents, skin-beautifying ingredients (whitening agents, cell activators, skin roughness improving agents, blood circulation promoters, skin astringents, antiseborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, etc., to the extent that the effects of the present disclosure are not lost. These ingredients may be used alone or in combination of two or more.

[0027] Examples of the surfactant include anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants.

[0028] Examples of anionic surfactants include saturated or unsaturated fatty acid salts, alkylbenzenesulfonates, alkyl or alkenyl sulfates, alkylsulfonates, alkyl or alkenyl ether carboxylates, α-sulfofatty acid salts, N-acylamino acid salts, phosphoric acid mono- or diester salts, and sulfosuccinic acid ester salts.

[0029] Examples of cationic surfactants include alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylamidoalkyltrimethylammonium salts, alkyldimethylamines and salts thereof, alkoxyalkyldimethylamines and salts thereof, and alkylamidoalkyldimethylamines and salts thereof.

[0030] Examples of nonionic surfactants include polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, alkyl glucosides, alkyl alkanolamides, alkyl glyceryl ethers, higher fatty acid sucrose esters, polyglycerin fatty acid esters, polyoxyalkylene hydrogenated castor oil, alkyl saccharides, polyether-modified silicones, and polyglycerin-modified silicones.

[0031] Examples of amphoteric surfactants include betaine surfactants such as alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, and alkylhydroxysulfobetaine, and sultaine surfactants such as laurylhydroxysultaine.

[0032] Examples of liquid oils include natural animal and vegetable oils, hydrocarbon oils, ester oils, silicone oils, higher alcohols, and higher fatty acids.

[0033] Examples of natural animal and vegetable oils include avocado oil, linseed oil, almond oil, perilla oil, olive oil, kaya oil, cod liver oil, apricot kernel oil, wheat germ oil, sesame oil, rice germ oil, rice bran oil, camellia oil, safflower oil, cinnamon oil, turtle oil, soybean oil, camellia oil, evening primrose oil, corn oil, rapeseed oil, palm oil, palm kernel oil, castor oil, sunflower oil, jojoba oil, macadamia nut oil, coconut oil, peanut oil, lanolin, reduced lanolin, and egg yolk oil.

[0034] Examples of hydrocarbon oils include squalane, squalene, liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, polybutene, α-olefin oligomer, pristane, and polyisobutylene.

[0035] The fatty acids constituting the ester oil may be saturated or unsaturated, preferably saturated. The fatty acids constituting the ester oil may be linear, branched, or cyclic, preferably linear or branched. The number of carbon atoms in the fatty acids constituting the ester oil may be 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, preferably 6 or more, more preferably 8 or more, and may be 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 12 or less, or 8 or less, preferably 30 or less.

[0036] The alcohol constituting the ester oil may be monohydric or polyhydric (e.g., dihydric or trihydric), or a combination thereof. The alcohol constituting the ester oil may be saturated or unsaturated, preferably saturated. The alcohol constituting the ester oil may be linear, branched, or cyclic, preferably linear or branched. The number of carbon atoms in the alcohol constituting the ester oil may be 1 or more, 2 or more, 3 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, or 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 12 or less, 8 or less, 6 or less, 4 or less, or 3 or less.

[0037] Examples of monohydric alcohols constituting ester oils include alcohols in which one hydrogen atom of an aliphatic hydrocarbon is substituted with a hydroxy group. The number of carbon atoms in the monohydric alcohol constituting the ester oil, when monovalent, may be 1 or more, 2 or more, 3 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, and may be 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 12 or less, or 8 or less, preferably 30 or less, more preferably 20 or less.

[0038] Examples of dihydric alcohols constituting the ester oil include glycols such as ethylene glycol, propylene glycol, propanediol, etc. When the alcohol constituting the ester oil is dihydric, the number of carbon atoms may be 2 or more, 3 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, and may be 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 12 or less, 8 or less, 6 or less, 4 or less, or 3 or less, and is preferably 10 or less.

[0039] Examples of trihydric alcohols constituting the ester oil include glycerin, etc. The number of carbon atoms in the trihydric alcohol constituting the ester oil may be 2 or more, 3 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, and may be 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 8 or less, 10 or less, 12 or less, 8 or less, 6 or less, 4 or less, or 3 or less, and is preferably 10 or less.

[0040] Examples of polyhydric alcohols (tetrahydric or higher) constituting the ester oil include sugar alcohols such as pentaerythritol. The number of carbon atoms in the polyhydric alcohols (tetrahydric or higher) constituting the ester oil may be 2 or more, 3 or more, 5 or more, 6 or more, 8 or more, 10 or more, 15 or more, 20 or more, or 25 or more, and may be 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 16 or less, 12 or less, 10 or less, 8 or less, 6 or less, 4 or less, or 3 or less, preferably 10 or less.

[0041] The molecular weight of the ester oil may be 100 or more, 200 or more, 300 or more, 500 or more, 750 or more, 1000 or more, 1200 or more, 1500 or more, preferably 300 or more, and may be 3000 or less, 2500 or less, 2000 or less, 1500 or less, 1000 or less, or 500 or less.

[0042] Ester oils include diisobutylene adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, tetra-2-ethyl Pentaerythritol hexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isocetyl palmitate Propyl, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, cholesteryl 12-hydroxystearate, dipentaerythritol fatty acid ester, isopropyl myristate, 2-octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl-L-glutamic acid-2- Examples of suitable glycerides include octyldodecyl diester, diisostearyl malate, acetoglyceride, triisooctanoic acid glyceride, triisostearate glyceride, triisopalmitic acid glyceride, tri-2-ethylhexanoic acid glyceride, monostearate glyceride, di-2-heptylundecanoic acid glyceride, trimyristate glyceride, tri(caprylic / capric acid)glyceryl, tricoconut oil fatty acid glyceride, and acetated lanolin.

[0043] Examples of silicone oils include dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, and alkyl-modified silicones.

[0044] Examples of higher alcohols include oleyl alcohol, decyltetradecanol, isostearyl alcohol, and 2-octyldodecanol.

[0045] Examples of higher fatty acids include oleic acid and isostearic acid.

[0046] Examples of alcohols include lower alcohols such as ethanol and isopropanol, and polyhydric alcohols such as glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butylene glycol, 1,3-propanediol, pentylene glycol, ethylhexylglycerin, sorbitol, xylitol, maltitol, erythritol, mannitol, and lactitol.

[0047] Examples of powders other than titanium oxide (A) and ultraviolet protection agents include inorganic powders, organic powders, metal soap powders, colorants, pearl pigments, and metal powders.

[0048] Examples of inorganic powders include mica, synthetic mica, sericite, synthetic sericite, talc, kaolin, silicon carbide, silicates, barium sulfate, bentonite, smectite, aluminum oxide, silica, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, aluminum hydroxide, magnesium hydroxide, boron nitride, hydroxyapatite, alumina, lauroyl lysine, and metal soap powder.

[0049] Examples of organic powders include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane, benzoguanamine powder, polymethylbenzoguanamine powder, tetrafluoroethylene powder, polymethyl methacrylate powder, silk powder, nylon powder (12 nylon, 6 nylon), styrene-acrylic acid copolymer powder, divinylbenzene-styrene copolymer powder, vinyl resin powder, urea resin powder, phenolic resin powder, fluororesin powder, epoxy resin powder, polycarbonate resin powder, rice starch, and lauroyl lysine.

[0050] Examples of metal soap powders include powders of zinc stearate, aluminum stearate, calcium stearate, magnesium stearate, zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, and zinc sodium cetyl phosphate.

[0051] Examples of coloring agents include inorganic white pigments such as zinc oxide and calcium titanate, inorganic colored pigments such as yellow iron oxide, red iron oxide, black iron oxide, carbon black, ultramarine, Prussian blue, Prussian blue titanium oxide, black titanium oxide, chromium oxide, chromium hydroxide, and titanium-titanium oxide sintered products, tar dyes such as Red No. 104, Red No. 201, Red No. 202, Red No. 226, Red No. 230, Yellow No. 401, Blue No. 1, and Blue No. 404 and their lakes, natural dyes such as carminic acid, laccaic acid, carthamine, brazilin, and crocin and their lakes, and composite powders made by combining these powders.

[0052] Examples of pearl pigments include fish scale foil, titanium mica, red iron oxide-coated (titanium oxide / aluminum hydroxide) mixture, red iron oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, iron oxide-coated titanium mica, organic pigment-coated mica, titanium oxide / silicic acid composite-coated mica, titanium oxide-coated talc, silicon dioxide / red iron oxide composite-coated aluminum, titanium oxide-coated borosilicate (Ca / Na), resin-coated plate aluminum powder, and titanium oxide / yellow iron oxide / red iron oxide / lauryl methacrylate / EG dimethacrylate copolymer mixture.

[0053] Examples of metal powder include aluminum powder, copper powder, and stainless steel powder.

[0054] Examples of ultraviolet absorbers include ethylhexyl methoxycinnamate, octocrylene, dimethicodiethyl benzalmalonate, polysilicon-15, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate, bisethylhexyloxyphenol methoxyphenyl triazine, oxybenzone-3, methylene bisbenzotriazolyl tetramethylbutylphenol, phenylbenzimidazole sulfonic acid, homosalate, and ethylhexyl salicylate.

[0055] Examples of thickeners and gelling agents include metal soaps such as aluminum stearate, magnesium stearate, and zinc myristate; amino acid derivatives such as N-lauroyl-L-glutamic acid dibutylamide; dextrin fatty acid esters such as ester compounds of palmitic acid and dextrin, ester compounds of stearic acid and dextrin, and ester compounds of palmitic acid, 2-ethylhexanoic acid, and dextrin; sucrose fatty acid esters such as sucrose palmitate and sucrose stearate; and fructooligosaccharides. Fructooligosaccharide fatty acid esters such as stearic acid esters, fructooligosaccharide 2-ethylhexanoate esters, benzylidene derivatives of sorbitol such as monobenzylidene sorbitol and dibenzylidene sorbitol, oil-based thickeners and gelling agents such as organically modified clay minerals such as dimethylbenzyldodecylammonium montmorillonite clay and dimethyldioctadecylammonium montmorillonite clay, gum arabic, galactan, guar gum, carrageenan, pectin, agar, quince seed (quince), starch (rice, rice bran, etc.), Examples of suitable polymers include plant-based polymers such as sorghum, potato, and wheat, and locust bean gum; microbial polymers such as xanthan gum, dextrin, and pullulan; animal polymers such as collagen, casein, and gelatin; starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch; cellulose-based polymers such as methylcellulose, ethylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, sodium cellulose sulfate, and crystalline cellulose; alginic acid-based polymers such as sodium alginate and propylene glycol alginate ester; vinyl-based polymers such as polyvinyl methyl ether, carboxyvinyl polymer, and alkyl-modified carboxyvinyl polymer; polyoxyethylene-based polymers, polyoxyethylene-polyoxypropylene copolymer-based polymers, acrylic polymers such as sodium polyacrylate, polyethyl acrylate, and polyacrylamide; clay minerals such as bentonite, magnesium aluminum silicate, hectorite, and silicic anhydride; and aqueous thickeners and gelling agents such as polyethyleneimine and cationic polymers.

[0056] Examples of antiperspirants include aluminum chlorohydrate, aluminum chloride, aluminum sesquichlorohydrate, zirconyl hydroxychloride, aluminum zirconium hydroxychloride, aluminum zirconium glycine complex, and the like.

[0057] Examples of moisturizing agents include urea, hyaluronic acid, chondroitin sulfate, pyrrolidone carboxylate, polyoxyethylene methyl glucoside, and polyoxypropylene methyl glucoside.

[0058] Examples of antiseptics and antibacterial agents include alkyl parahydroxybenzoates, benzoic acid, sorbic acid, potassium sorbate, phenoxyethanol, salicylic acid, carbolic acid, parachlormetacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizers, and salts thereof.

[0059] Examples of antioxidants include tocopherol, butylhydroxyanisole, dibutylhydroxytoluene, and phytic acid.

[0060] Examples of pH adjusters include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, malic acid, carbonic acid, etc., and salts thereof.

[0061] Examples of chelating agents include alanine, edetic acid, etidronic acid, diethylenetriaminepentaacetic acid, polyphosphoric acid, metaphosphoric acid, and salts thereof.

[0062] Examples of cooling agents include L-menthol, peppermint oil, eucalyptus oil, and the like.

[0063] Examples of anti-inflammatory agents include allantoin, azulene, glycyrrhizinic acid, glycyrrhetinic acid, tranexamic acid, and salts thereof.

[0064] Examples of skin-beautifying ingredients include whitening agents such as placenta extract, arbutin, glutathione, and saxifrage extract; cell activators such as royal jelly, photosensitizers, cholesterol derivatives, and calf blood extract; skin roughness improving agents; blood circulation promoters such as nonylic acid valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, and γ-oryzanol; skin astringents such as tannic acid; and antiseborrheic agents such as sulfur and thianthrol.

[0065] Examples of vitamins include vitamins A, B, C, D, E, nicotinic acids, pantothenic acids, and derivatives thereof other than the above-mentioned components.

[0066] Examples of amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, tryptophan, and the like.

[0067] Examples of nucleic acids include deoxyribonucleic acid.

[0068] Examples of hormones include estradiol, ethenylestradiol, and the like.

[0069] <Method of manufacturing UV protective cosmetics> The method for producing the UV protective cosmetic composition of the present disclosure is not particularly limited, and known production methods can be used. For example, a method in which the raw materials are stirred to uniformly disperse them while heating as necessary can be used. If necessary, a high-dispersion machine such as a roller mill, high-pressure homogenizer, bead mill, or microfluidizer can be used. The cosmetic composition may be molded, and the molding may be dry molding or wet molding.

[0070] <Form of UV protection cosmetics> The formulation and product form of the UV protective cosmetic composition according to the present disclosure are not particularly limited, and can be applied to products that require UV protection functions (SPF and PA).

[0071] <Shape of UV protection cosmetics> The form of the UV protective cosmetic composition of the present disclosure during storage is not particularly limited, and examples thereof include liquid, emulsion, cream, paste, gel, sheet, solid, semi-solid, powder, etc. The form during use is also not particularly limited, and examples thereof include liquid, emulsion, foam, mist, cream, paste, gel, sheet, solid, semi-solid, powder, etc.

[0072] <Where UV protection cosmetics should be applied> The areas to which the UV protective cosmetic composition of the present disclosure may be applied are not particularly limited, and examples include the face, head, hands, arms, feet, legs, shoulders, chest, waist, buttocks, back, hair, beard, eyelashes, etc.

[0073] <UV protection cosmetic container> The container for the UV protective cosmetic according to the present disclosure is not particularly limited, and examples include bottle containers, jar containers, tube containers, pump containers, non-aerosol containers, aerosol containers, containers with applicators, compact containers, dispenser containers, and powder containers.

[0074] <Evaluation of UV protection effect> In the evaluation test for the "ultraviolet ray protection effect" shown in this specification, each formulation prepared by a conventional method was applied to a PMMA plate (HELIOPLATE HD6 manufactured by Helioscreen) at a concentration of 1.3 mg / cm. 2 The product was applied evenly, and the in-vitro SPF and in-vitro UVAPF were measured using an SPF analyzer (UV-2000S, manufactured by Labsphere). The total score based on the obtained values ​​was used as the evaluation result according to the following evaluation criteria.

[0075] [Evaluation criteria for UV protection effect] In-vitro SPF 50 or above: 3 points 30 or more but less than 50: 2 points 20 or more but less than 30: 1 point Less than 20: 0 points In-vitro UVAPF 16 or above: 3 points 8 or more but less than 16: 2 points 4 or more but less than 8: 1 point Less than 4: 0 points

[0076] [Evaluation results of UV protection effect] 5 points or more: ◎ 4 points:〇 3 points:△ 2 points or less:×

[0077] <Transparency evaluation> In the evaluation test for "transparency" shown in this specification, 0.03 g of each formulation prepared by a conventional method was dropped onto the skin on the inside of the upper arm, spread over an area of ​​3 cm x 3 cm, and after 15 minutes, the applied area was observed and evaluated according to the following evaluation criteria.

[0078] [Transparency evaluation criteria] Very transparent:◎ Transparent:〇 Slightly white: △ It looks clearly white :×

[0079] In Examples 1 to 15, it was confirmed that even when the particle size and amount of (A) titanium oxide were changed, they had high UV protection effect and transparency compared to Comparative Examples 1 to 3.

[0080] [Table 1]

[0081] [Table 2]

[0082] Example 16: Sunscreen Cream The following ingredients were mixed uniformly to the following contents (%) to obtain a sunscreen cream. JPEG2025176867000003.jpg72121 *1: ST-750SA (Titanium Industries Co., Ltd.) *2: STV-455 (manufactured by Titanium Industries Co., Ltd.) *3: MZ-505T (manufactured by Teika Corporation)

[0083] The sunscreen cream obtained in Example 16 had high UV protection effect and transparency. [Industrial Applicability]

[0084] The present disclosure can provide an ultraviolet protective cosmetic having high ultraviolet protection effect and transparency, and the cosmetic can be used as a variety of cosmetic products that require ultraviolet protection function (SPF and PA).

Claims

1. An ultraviolet protective cosmetic containing an ultraviolet scattering agent, (A) Titanium oxide having an average particle size of 0.2 μm or more and 2.0 μm or less A cosmetic comprising:

2. 2. The cosmetic according to claim 1, wherein the ultraviolet scattering agent is at least one selected from titanium oxide other than (A) and zinc oxide.

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