TWI644684B - Oil-based sunscreen lotion - Google Patents

Abstract

The present invention provides an oil-in-water type sunscreen cosmetic which is a water which inhibits adhesion, stickiness and secondary adhesion of an ultraviolet absorber, and which does not wrinkle, can be uniformly coated, and has transparency. Tender feel and moisturizing.

The oil-in-water type sunscreen cosmetic of the present invention contains: (A) an oil-soluble ultraviolet absorber, (B) a dextrin fatty acid ester, and (C) an acrylic polymer, and the following conditions (1) to (3) are satisfied. (1) (D) the powder content is 5% by mass or less; (2) the mass ratio (A/B) of the (A) oil-soluble ultraviolet absorber to the (B) dextrin fatty acid ester is 2.5 or more. 47 or less; (3) The mass ratio (A/C) of the oil-soluble ultraviolet absorber (A) to the (C) acrylic polymer is 4.5 or more and 35 or less.

Description

Oil-based sunscreen lotion

The present invention relates to an oily sunscreen cosmetic in water.

The sunscreen cosmetic is a SPF (Sun Protection Factor) having a high barrier to ultraviolet light irradiation, and is blended with an ultraviolet absorber or an ultraviolet scattering agent. In particular, the oil-in-oil composition containing these oils is widely used because it can obtain a high SPF sunscreen cosmetic which is excellent in water resistance.

However, the water-based composition in the oil may be sticky and sticky during coating, and may have a rubbing feeling or a dead white due to the ultraviolet scattering agent. Moreover, if the water-type composition of the oil having high SPF is to be produced without blending the ultraviolet scattering agent, the ultraviolet absorber will become highly blended, causing greasy and sticky conditions, and further, due to the clothes. A situation in which dirt adheres due to secondary adhesion.

On the other hand, in order to improve the adhesion or stickiness, it is revealed that the oil-based sunscreen makeup is composed of a polyoxymethane gel composition, an organically modified clay mineral, an oil-soluble ultraviolet absorber and a water-soluble polymer. Material (Patent Document 1). Further, in order to obtain a feeling of firmness and softness, it is revealed that oily particles having a specific particle diameter are combined with a solid oil component, a dextrin fatty acid ester, and a liquid oil, and then dispersed in water containing polyvinyl alcohol. In the phase, a composition other than the composition is used to suppress sticking (Patent Document 2).

Further, it is disclosed that a sunscreen cosmetic blended with a specific benzotriazole derivative can reduce the dyeing property of diethylaminohydroxybenzhydryl benzoic acid hexyl ester on clothes (Patent Document) Offer 3).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 3579778

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2011-46629

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2007-182388

The present invention relates to an oil-in-water type sunscreen cosmetic comprising: (A) an oil-soluble ultraviolet absorber, (B) a dextrin fatty acid ester, and (C) an acrylic polymer, and satisfying the following conditions (1) ~(3): (1) (D) powder content is 5% by mass or less; (2) (A) mass ratio of oil-soluble ultraviolet absorber to (B) dextrin fatty acid ester (A/B) 2.5 or more and 47 or less; (3) The mass ratio (A/C) of the (A) oil-soluble ultraviolet absorber and (C) acrylic polymer is 4.5 or more and 35 or less.

Moreover, the present invention relates to the above-described oil-in-water type sunscreen cosmetic, wherein the mass ratio (B/C) of the (B) dextrin fatty acid ester to the (C) acrylic polymer is 0.2 or more and 3.0 or less.

As described in the above Patent Document 1 or 2, by forming an oil-in-water type sunscreen cosmetic, although stickiness or stickiness is suppressed to some extent, it is still not sufficiently satisfactory. Again, if The use of a water-soluble tackifier to obtain the stability of the oil-based composition in water causes a problem of "wrinkling" during coating. Further, the secondary adhesion problem of the sunscreen cosmetic incorporating the ultraviolet absorber is limited by the combination of the ultraviolet absorbers, and the improvement has not yet been achieved.

Therefore, the present invention provides an oil-in-water type which suppresses adhesion, stickiness, secondary adhesion of an ultraviolet absorber, prevents wrinkling of a coating film, and can be uniformly applied, and has a moisturizing feeling and a moisturizing feeling with transparency. Sunscreen cosmetics.

Therefore, the inventors of the present invention have found various combinations of (A) oil-soluble ultraviolet absorbers, (B) dextrin fatty acid esters, and (C) acrylic polymers, and The mass ratio of the component A to the component (B) and the mass ratio of the component (A) to the component (C) are in a specific range, and the total amount of the powder contained is 5% by mass or less. The cosmetic can suppress the stickiness, stickiness, and secondary adhesion of the oil-soluble ultraviolet absorber, prevent the coating film from wrinkling, can be uniformly applied, and have a transparent feeling of use and a moisturizing feeling. In addition, the oil-based sunscreen cosmetic having a mass ratio of the component (B) to the component (C) is in a specific range, and the adhesion of the oil-soluble ultraviolet absorber can be suppressed, the adhesion, the secondary adhesion, and the coating can be prevented. The film wrinkles, can be uniformly applied, and has a water-repellent feeling of use and a moisturizing feeling, and can further maintain the moisturizing feeling while maintaining the moisturizing feeling of the coating film while suppressing the feeling of pressure on the skin after application. The touch of the skin becomes good afterwards.

According to the present invention, it is possible to provide adhesion, stickiness, secondary adhesion to clothing, and uniform coating of the coating film without wrinkles, and a transparent feeling of transparency. A sunscreen lotion which is excellent in moisturizing effect and which has a moisturizing sensation, suppresses the feeling of pressure on the skin after application, and has a good touch after application.

Hereinafter, embodiments of the present invention will be described in detail.

The (A) oil-soluble ultraviolet absorber used in the present invention may, for example, be salicylic acid such as trimethylcyclohexyl salicylate, octyl salicylate or triethanolamine salicylate; or amino benzoic acid or ethyl Dihydroxypropyl p-aminobenzoic acid, p-amino benzoic acid glyceride, octyl dimethyl-p-aminobenzoic acid, p-dimethylamino benzoic acid amyl ester, p-dimethylamino benzoic acid-2 -Ethylhexyl ester and the like amino-based benzoic acid; 4-(2-β-glucopyranosyloxy)propoxy-2-hydroxydiphenyl ketone, dihydroxydimethoxydiphenyl ketone , sodium dihydroxydimethoxydiphenyl ketone disulphonate, 2-hydroxy-4-methoxydiphenyl ketone, 2-hydroxy-4-methoxydiphenyl ketone-5-sulfuric acid, 2, 2'-Dihydroxy-4-methoxydiphenyl ketone, 2,4-dihydroxydiphenyl ketone, 2,2',4,4'-tetrahydroxydiphenyl ketone, 2,2'-di Diphenyl ketones such as hydroxy-4,4'-dimethoxydiphenyl ketone, 2-hydroxy-4-N-octyloxydiphenyl ketone; p-methoxycinnamic acid-2-ethylhexyl Ester (Uvinul MC80; manufactured by BASF), di-p-methoxycinnamic acid mono-2-ethylhexanoic acid glyceride, 2,5-diisopropyl cinnamic acid methyl ester, 2, 4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-three (Uvinul T150; manufactured by BASF), trimethoxy cinnamic acid methyl bis(trimethyl decyloxy) decyl isoamyl ester, p-methoxy cinnamic acid isopropyl ester. A cinnamic acid system such as a diisopropyl cinnamic acid ester mixture or a p-methoxy hydrogenated cinnamic acid diethanolamine salt; 2-phenyl-benzimidazole-5-sulfuric acid, 4-isopropyldibenzopyridylmethane, 4-tert-butyl-4'-methoxybenzhydrylmethane (PARSOL® 1789; manufactured by DSM Nutrition Japan), such as benzhydrylmethane; octocrylene (PARSOL® 340; DSM Nutrition Japan Co., Ltd., dimethoxybenzylidene dioxyimidazolium propionate 2-ethylhexyl ester (SOFT SHADE DH; manufactured by Ajinomoto Co., Ltd.), 1-(3,4-dimethoxy group) Phenyl)-4,4-dimethyl-1,3-pentanedione, cinoxadate, methyl-O-aminobenzoate, 3-(4-methylbenzylidene) camphor Xinji San Ketone, diethylaminohydroxybenzhydryl benzoic acid hexyl ester (Uvinul Aplus; manufactured by BASF Corporation), bisethylhexyloxyphenol methoxyphenyl trisole (TINOSORB S; manufactured by BASF Corporation), methylene bisbenzotriazolyl tetramethyl butyl phenol (TINOSORB M; manufactured by BASF Corporation), one or two or more kinds of these may be used. When the component (A) is used as the solid component (A) at room temperature (25 ° C), it is preferably used in a liquid oil at room temperature to further enhance the stability. In the case of the liquid ester oil (ingredient (F)), it is more preferably used at room temperature.

Among these, from the viewpoint of the ultraviolet absorbing effect, it is preferably: p-methoxycinnamic acid-2-ethylhexyl ester (Uvinul MC80; manufactured by BASF Corporation), 2, 4, 6-three [4] -(2-ethylhexyloxycarbonyl)anilino]-1,3,5-three (Uvinul T150; manufactured by BASF Corporation), 4-t-butyl-4'-methoxybenshydrylmethane (PARSOL® 1789; manufactured by DSM Nutrition Japan), Oaklin (PARSOL® 340; DSM) Diethyl benzylidene dioxyimidazolium propionate 2-ethylhexyl ester (SOFT SHADE DH; manufactured by Ajinomoto Co., Ltd.), diethylaminohydroxybenzhydryl benzoic acid Ester (Uvinul Aplus; manufactured by BASF), bisethylhexyloxyphenol methoxyphenyl three One or two or more kinds of methylene bisbenzotriazolyl tetramethyl butyl phenol (manufactured by BASF Corporation) and methylene bistristriazolyl tetramethyl butyl phenol (manufactured by BASF Corporation) may be used, and more preferably two or more.

The content of the component (A) used in the oil-based sunscreen cosmetic in the water is preferably 0.6% by mass or more, more preferably 2% by mass or more, and further preferably from the viewpoint of the ultraviolet protection effect. 5 mass% or more. In addition, the content of the component (A) used in the oil-based sunscreen cosmetic in the present invention is preferably 30% by mass or less from the viewpoint of suppressing stickiness and stickiness and maintaining a feeling of moisturizing use. More preferably, it is 25% by mass or less, and further preferably 20% by mass or less. The content of the component (A) used in the oil-based sunscreen cosmetic in the water is preferably 18% by mass or less, more preferably 16% by mass or less, from the viewpoint of further reducing the pressure feeling after application. .

Further, the content of the component (A) in the oil-based sunscreen cosmetic is preferably 0.6 to 30% by mass, more preferably 2 to 25% by mass, still more preferably 5 to 20% by mass, and further preferably 5 ~18% by mass, and further preferably 5 to 16% by mass.

(B) The ester of the dextrin fatty acid ester fatty acid and the dextrin used in the present invention, the fatty acid preferably has a carbon number of 8 to 24, more preferably a carbon number of 14 to 18; and the fatty acid is a linear or branched chain. The saturated or unsaturated fatty acid; the average degree of polymerization of the above component (B) is preferably from 10 to 50, more preferably from 20 to 30.

Specific examples thereof include palmitic acid dextrin ester, palmitic acid/2-ethylhexanoate dextrin ester, stearic acid dextrin ester, palmitic acid/stearic acid dextrin ester, oleic acid dextrin ester, and the like. One or two or more kinds of these may be used, and one or more of these may be used.

Commercially available products include, for example, palmitic acid dextrin ester (LEOPERL KL2, LEOPERL KS2, LEOPERL TL2), palmitic acid/2-ethylhexanoic acid dextrin ester (LEOPERL TT2), and myristic acid dextrin ester (LEOPERL MKL2). ) (all manufactured by Chiba Powder Co., Ltd.) and the like.

The content of the component (B) used in the oil-based sunscreen cosmetic in the water is preferably 0.1% by mass or more, more preferably from the viewpoint of suppressing adhesion or secondary adhesion of the oil-soluble ultraviolet absorber. It is 0.3% by mass or more, more preferably 0.5% by mass or more, and more preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 2% by mass or less. Further, the content of the component (B) in the oil-based sunscreen cosmetic is preferably from 0.1 to 5% by mass, more preferably from 0.3 to 3% by mass, even more preferably from 0.5 to 2% by mass.

In addition, the content of the component (B) in the oil-based sunscreen cosmetic is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, from the viewpoint of preventing secondary adhesion, eliminating the feeling of pressure, and improving the feeling of refreshment. Furthermore, it is more preferably 0.25 mass% or more, and is preferably 2 mass% or less, more preferably 1.5 mass% or less, and still more preferably 1.3 mass% or less. Further, the content of the component (B) in the oil-based sunscreen cosmetic is preferably 0.1 to 2% by mass, more preferably 0.25 to 1.5. The amount %, and more preferably 0.25 to 1.3% by mass.

The present invention can suppress the stickiness or secondary adhesion of the oil-soluble ultraviolet absorber, suppress stickiness or stickiness, and obtain a feeling of tenderness. The mass ratio (A/B) of the components (A) and (B) is 2.5 or more. And 47 or less. The mass ratio (A/B) of the components (A) and (B) suppresses secondary adhesion, eliminates wrinkles, and eliminates stickiness. It is preferably 3 or more, more preferably 5 or more, still more preferably 6 or more, and preferably 40 or less, from the viewpoint of being sticky, having a good moisturizing feeling, being transparently fused to the skin, and having a feeling of moisturizing use. More preferably, it is 30 or less, and further preferably 25 or less. Further, the mass ratio (A/B) of the components (A) and (B) is preferably 3 to 40, more preferably 5 to 30, and still more preferably 6 to 25.

The (C) acrylic polymer used in the present invention is preferably a monomer selected from the group consisting of methacrylic acid, acrylic acid, methacrylic acid ester, acrylate, methacrylamide, and acrylamide. Examples of the homopolymer of the constituent unit or the copolymer containing two or more kinds of the monomers include a carboxyvinyl polymer (Synthalen K, L; and Wako Pure Chemical Industries, Ltd.), an alkyl modified carboxyvinyl group. Polymer (PEMULEN TR-1, TR-2; Lubrizol), polypropylene decylamine sold by SEPPIC (SEPIGEL 305), (sodium acrylate/sodium acrylonitrile dimethyl taurate) copolymer (SIMULGEL) EG), (hydroxyethyl acrylate/sodium acryloyldimethyltaurate) copolymer (SIMULGEL FL, SIMULGEL NS, SEPIPLUS S, SEPINOV EMT 10), (acrylamide/ammonium acrylate) copolymer (SEPIPLUS 265) ), polyacrylate-13 (SEPIPLUS 400) and the like. One type or two or more types of acrylic polymers selected from the above may be used.

In the case of using one or more selected from the group consisting of an alkyl modified carboxyvinyl polymer and a (sodium acrylate/sodium acrylonitrile dimethyl taurate) copolymer, even a small amount is used. It can still make the preparation stable, and the wrinkle prevention effect and lifting during coating It is preferable from the viewpoint of feeling.

The content of the component (C) used in the oil-based sunscreen cosmetic in the water is preferably 0.1% by mass or more, more preferably 0.25% by mass or more, and further preferably from the viewpoint of stability of the preparation. 0.3% by mass or more, and more preferably 0.4% by mass or more. Further, the content of the component (C) in the oil-based sunscreen cosmetic in water is preferably 2% by mass or less, more preferably 1.5, from the viewpoint of wrinkles or sticking at the time of application due to the polymer. The mass% or less, more preferably 1.2% by mass or less, further preferably 1% by mass or less, and further preferably 0.8% by mass or less. Further, the content of the component (C) in the oil-based sunscreen cosmetic is preferably 0.1 to 2% by mass, more preferably 0.25 to 1.5% by mass, still more preferably 0.3 to 1.2% by mass, and further preferably 0.4. ~1.2% by mass. In addition, the content of the component (C) in the oil-based sunscreen cosmetic is preferably 0.25 to 1% by mass in terms of wrinkles and moisturizing feeling at the time of application, and from the viewpoint of refreshing feeling. More preferably, it is 0.3 to 0.8% by mass. In addition, the content of the component (C) is the content of the active ingredient contained in the product containing the acrylic polymer (purity: mass%), and is not the content of the commercially available raw material (mixed raw material) (quality) %).

In the present invention, the component (B) is obtained from the viewpoint of suppressing secondary adhesion, preventing wrinkles after application, obtaining uniform dispersion coating properties, and preventing the feeling of pressure on the skin after application, and obtaining a refreshing and good touch. The mass ratio (B/C) to (C) is preferably 0.2 or more, more preferably 0.25 or more, still more preferably 0.4 or more, and is preferably 3.0 or less, more preferably 2.8 or less, and further preferably 2.7. The following is further preferably 2.6 or less. Here, the term "compressive feeling" means that the present invention has a feeling of being uncomfortable when it is applied to the skin such as a thick film which is required to be coated, since the film is formed after application.

The mass ratio (B/C) of the components (B) to (C) is preferably 2.35 or less, more preferably 2.0 or less, from the viewpoint of reducing the feeling of pressure on the skin after application and further improving the refreshing feeling. More preferably, the system is 1.8 or less. Further, the mass ratio (B/C) of the components (B) to (C) is preferably 0.2 to 3.0, more preferably 0.25 to 2.35, and still more preferably 0.4 to 1.8.

Just suppress the stickiness. The mass ratio (B/C) of the components (B) to (C) is preferably 0.4 or more, more preferably 0.6 or more, from the viewpoint of stickiness, improvement in water tenderness, and transparency. Further, the mass ratio (B/C) of the components (B) to (C) is preferably 0.4 to 2.8, more preferably 0.6 to 2.7, and still more preferably 1 to 2.6.

In the present invention, the mass ratio (A/C) of the components (A) to (C) is 4.5 or more in terms of improving stability, ultraviolet protection effect, and preventing wrinkles or sticking during coating. It is more preferably 5 or more, and further preferably 6.5 or more, and further preferably 7 or more from the viewpoint of preventing wrinkles from occurring. The mass ratio (A/C) of the components (A) to (C) is 35 or less, preferably 33 or less, more preferably 30 or less, and more preferably 25 or less from the viewpoint of maintaining moisture retention. Further, the mass ratio (A/C) of the components (A) and (C) is 4.5 to 35, preferably from the viewpoint of suppressing wrinkles or sticking, and improving the sustainability of the coating film and moisturizing feeling. It is 5 to 33, more preferably 6.5 to 30, further preferably 7 to 30, further preferably 7 to 27, and further preferably 6.5 to 25.

In the present invention, the powder of the component (A) and the component other than the component (B) are present as a powder in the oil-in-water sunscreen cosmetic of the present invention. In the present invention, the "powder" which conforms to the component (D) may, for example, be an inorganic powder such as an organic powder or an ultraviolet scattering agent, or a composite powder in which an inorganic powder is coated with an inorganic powder.

Specific examples thereof include inorganic white pigments such as talc, kaolin, sericite, muscovite, titanium oxide, and iron oxide; inorganic red pigments such as iron oxide (red Dan) and iron titanate; and inorganic yellow such as yellow iron oxide and loess. Inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate; inorganic blue pigments such as ultramarine blue and iron blue; titanium oxide coated mica and titanium oxide coated Oxygen oxychloride Cerium oxychloride, titanium oxide coated talc, fish scale foil, pigmented titanium oxide coated mica and other pearl pigments; aluminum powder, copper powder and other metal powder pigments; synthetic mica, phlogopite, red mica, biotite, lithium mica, strontium Stone, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium citrate, calcium citrate, aluminum citrate, strontium ruthenate, strontium ruthenate, metal tungstate, alpha-iron oxide, hydrated iron oxide, cerium oxide, An inorganic powder such as hydroxyapatite; an organic powder such as a nylon powder, a polyethylene powder, a benzoguanamine powder, a microcrystalline cellulose or a polyfluorene oxide powder. Further, for example, an ultraviolet ray scattering agent such as fine particle titanium oxide or fine particle zinc oxide, or a composite powder coated with an inorganic powder on an organic powder may be mentioned. The water-in-oil type sunscreen cosmetic of the present invention preferably contains titanium oxide as the (D) powder from the viewpoint of ensuring stability.

The content of the above-mentioned (D) powder is 5% by mass or less, preferably 3% by mass or less based on the total amount of the oil-based sunscreen cosmetic in view of the transparency at the time of application or the feeling of moisturizing at the time of application. More preferably, it is 2.7% by mass or less, particularly preferably 2.5% by mass or less, more preferably 2% by mass or less, further preferably 1% by mass or less, more preferably 0.8% by mass or less, and further preferably 0.5% by mass. The following is further preferably 0.3% by mass or less. Further, in the present invention, the case where (D) the powder content is 0 is included.

The oil-in-water type sunscreen cosmetic of the present invention may further contain (E) ethanol from the viewpoint of enhancing the feeling of use. In view of the above, the content of the component (E) in the oil-based sunscreen cosmetic is preferably 0.1% by mass or more, more preferably 1% by mass or more, further preferably 2% by mass or more, and further preferably more. It is 5% by mass or more, more preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 12% by mass or less. Further, the content of the component (E) in the oil-based sunscreen cosmetic is preferably 0.1 to 20% by mass, more preferably 1 to 15% by mass, still more preferably 2 to 12% by mass, and further preferably 5 ~12% by mass.

The oil-in-water type sunscreen cosmetic of the present invention is an ester oil which is liquid-containing at room temperature (25 ° C) in addition to the component (A) and which is a component (F). Specific examples of the component (F) include: octyl dodecyl myristate, isocetyl myristate, tris-2-ethylhexanoate, glyceryl triisostearate, and the like. Propylene glycol stearate, diethylhexyl sebacate, trimethylpropyl tri-2-ethylhexanoate, di-2-ethylhexyl succinate, bis(octanoic acid) propylene glycol, 2-cyano-3,3-diphenylacrylate-2-ethylhexyl ester, tris(octanoic acid) glyceride, trimethylolpropyl tricaprylate, tricaprylate, dioctanoic acid Alcohol ester, dimyristate, diethylene glycol dilaurate, pentaerythritol tetra-2-ethylhexanoate, glyceryl distearate, diisostearyl malate, benzoic acid Base ester (C ₁₂ ~ C ₁₅ ), octyl lauryl lactate, propylene glycol monostearate, propylene glycol oleate, oleyl lactate, propylene glycol dihexanoate, diisopropyl sebacate, single Ethylene glycol stearate, diethylene glycol diacetate, neopentyl glycol dicaprate, neopentyl glycol di-2-ethylhexanoate, di-coco fatty acid glyceride, dilauric acid Glyceride, sesquioleate , ethylene glycol monooleate, cetyl lactate, diethyl sebacate, castor oil fatty acid methyl ester, ethylene glycol palmitate, polyethylene glycol dilaurate and bis(trimethylacetic acid) One or two or more selected from the group consisting of tripropylene glycol esters.

Among these, an ester of a fatty acid having 12 to 18 carbon atoms and a branched alcohol having a carbon number of 14 to 22, a tris(C ₁₂ -C ₁₈ branched fatty acid) glyceride, and a C ₂ -C ₁₈ dicarboxylic acid II are preferred. C ₂ -C ₁₈ alkyl) ester, alkyl benzoate (C ₁₂ ~ C ₁₅ ), etc., more preferably octyl dodecyl myristate, isocetyl myristate, tri- 2-ethylhexanoic acid glyceride, diisopropyl sebacate, diethylhexyl sebacate, neopentyl glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, benzoin Acid alkyl ester (C ₁₂ ~ C ₁₅ ), diisostearyl malate.

The content of the component (F) in the oil-based sunscreen cosmetic in water is preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, and more preferably from the viewpoint of the above. 12% by mass or less, more preferably 8% by mass Hereinafter, it is more preferably 7 mass% or less. Further, the content of the component (F) in the oil-based sunscreen cosmetic is preferably 0.5 to 12% by mass, more preferably 1 to 8% by mass, and still more preferably 2 to 7% by mass. Further, when the component (A) contains an ultraviolet ray absorbing material which is solid at normal temperature (25 ° C), it is preferably 1% by mass or more in order to improve the solubility or stability of the component (A).

In the present invention, the total of the components (A) and (F) and the component (B) are suppressed from the viewpoint of suppressing adhesion or secondary adhesion of the ultraviolet absorber, obtaining a feeling of moisturizing use, and suppressing the feeling of pressure. The mass ratio ((A+F)/B) is preferably 2.75 or more, more preferably 5 or more, and preferably 80 or less, and more preferably 60 or less, thereby further suppressing secondary adhesion and further improving the use of water. From the viewpoint of sensation, it is preferably 50 or less, more preferably 30 or less, and from the viewpoint of further reducing the feeling of pressure, the optimum is 10 or more. Further, the total mass of the components (A) and (F) and the mass ratio of the component (B) ((A+F)/B) are preferably 2.75 to 60, more preferably 5 to 30.

In the present invention, in order to improve the stability of the preparation, the total of the components (A) and (F) and the mass ratio of the component (C) ((A + F) / C) are preferably 4.6 or more, more preferably 10 The above is preferably 300 or less, more preferably 200 or less, further preferably 70 or less, and still more preferably 45 or less. Further, the total of the components (A) and (F) and the mass ratio of the component (C) ((A + F) / C) are preferably 4.6 to 300, more preferably 10 to 200.

In the oil-in-water type sunscreen cosmetic of the present invention, in order to enhance the fusion at the time of drying during coating, polyethylene glycol may be further contained as the component (G). The component (G) is preferably one in which the number average molecular weight obtained by the GPC method using polystyrene is 1000 or more, and preferably the molecular weight is from 1,000 to 2,500,000, more preferably from 1,000 to 30,000. More preferably, the above molecular weight is from 10,000 to 30,000.

As the component (G), polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 6000, and polyethylene glycol 20000 (all of which are manufactured by Sanyo Chemical Industries Co., Ltd.) can be used. Things.

Among these, in order to make the touched skin smooth, it is preferably polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 6000, polyethylene glycol 20000, more preferably polyethylene glycol. 20000.

The component (G) may be used singly or in combination of two or more. The content of the component (G) is preferably 0.001% by mass or more, more preferably 0.01% by mass, in terms of the oil-based sunscreen cosmetic. The above-mentioned, and more preferably, it is 0.05% by mass or more, and is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 1% by mass or less from the viewpoint of suppressing stickiness and sticking during drying. Further, the content of the component (G) in the oil-based sunscreen cosmetic is preferably 0.001 to 5% by mass, more preferably 0.01 to 3% by mass, still more preferably 0.05 to 1% by mass.

In the oil-in-water type sunscreen cosmetic of the present invention, in order to enhance the refreshing feeling at the time of coating, a polyoxygenated oil may be contained as the component (H). The specific viscosity of the (H) component at 25 ° C is preferably 50 mPa. s the following, better system 1~30mPa. s, and then better 1~20mPa. s.

The polyoxyphthalic acid is preferably dimethyl polyoxyalkylene or dimethylcyclopolyoxyalkylene, and the viscosity at 25 ° C is preferably 20 mPa. s below dimethyl polyoxane, octamethylcyclopolyoxyalkylene, and more preferably at 25 ° C viscosity at 20 mPa. The dimethyl polyoxane below s. The viscosity was measured at 25 ° C using a B-type viscometer (TOKI SANGYO VISCOMETER TVB-10M, manufactured by Toki Sangyo Co., Ltd.) at a rotor of 1, 60 rpm and 1 minute.

The component (H) may be used alone or in combination of two or more. The content of the component (H) is preferably 0.1% by mass or more, more preferably 0.2% by weight in the oil-based sunscreen cosmetic. The mass% or more, and more preferably 0.3% by mass or more, is preferably 5% by mass or less, more preferably 3, from the viewpoint of suppressing stickiness. The mass% or less, and more preferably 2% by mass or less. Further, the content of the component (H) in the oily sunscreen cosmetic in water is preferably 0.1 to 5% by mass, more preferably 0.2 to 3% by mass, still more preferably 0.3 to 2% by mass.

The oil-in-water type sunscreen cosmetic of the present invention contains water. The water content in the oil-based sunscreen cosmetic is preferably 40% by mass or more, more preferably 50% by mass or more, from the viewpoints of a moisturizing feeling, a refreshing feeling, a feeling of pressure reduction, and a moderate viscosity balance. Furthermore, it is more preferably 55 mass% or more, further preferably 60 mass% or more, and more preferably 90 mass% or less, and still more preferably 85 mass% or less.

In the oil-in-water type sunscreen cosmetic of the present invention, in addition to the above components and water, a nonionic surfactant and an anionic interface activity which are usually blended in a cosmetic can be used within a range not impairing the effects of the present invention. Surfactant such as a surfactant, a cationic surfactant, or an amphoteric surfactant; a lower alcohol, a water-soluble solvent other than the lower alcohol, an oil agent other than the (A) component, the (F) component, and the (H) component, and a fluorine compound , resin, active ingredients, acids, alkalis, tackifiers, antibacterial preservatives, perfumes, moisturizers, salts, solvents, antioxidants, chelating agents, pH adjusters, insect repellents, physiologically active ingredients and other ingredients.

Among the above surfactants, the nonionic surfactant preferably has an HLB of 10 to 20 and a preferred HLB of 12 to 18 as a nonionic surfactant. Further, when two or more kinds of nonionic surfactants are used, it is preferred that the HLB of the mixed nonionic surfactant is within the above range.

Here, HLB (Hydrophilic-Lypophilic Balance) refers to the molecular weight of the hydrophilic group portion of the total molecular weight of the surfactant, and Griffin is used for the nonionic surfactant system. The formula is obtained.

The HLB of the mixed surfactant composed of two or more types of nonionic surfactants was determined as follows. The HLB of the mixed surfactant is composed of HLB of each nonionic surfactant. The value is obtained by adding the average of the blending ratios.

Mixed HLB=Σ(HLBx×Wx)/ΣWx

HLBx represents the HLB value of the nonionic surfactant X.

Wx represents the weight (g) of the nonionic surfactant X having an HLBx value.

Examples of the nonionic surfactant include sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, and polyoxyethylene. Fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxygen Vinyl castor oil, polyoxyethylene hardened castor oil, polyoxyethylene hardened castor oil fatty acid ester, polyoxyethylene plant solid alkanol ether, polyoxyethylene phytosterol ether, polyoxyethylene cholesteryl ether, polyoxyethylene Cholesterol ether, polyoxyethylene modified organic polyoxane, polyoxyethylene. Alkyl co-modified organic polyoxane and the like.

Among these, polyoxyethylene hardened castor oil, polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and more preferably polyoxyethylene hardening Castor oil, polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester.

The non-ionic surfactant may be used alone or in combination of two or more. From the viewpoint of stability, the content is preferably 0.001% by mass or more, more preferably in the oil-based sunscreen cosmetic. It is 0.005 mass% or more, more preferably 0.01 mass% or more, and is preferably 8% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less. Further, the content of the nonionic surfactant in the oily sunscreen cosmetic in water is preferably 0.001 to 8% by mass, more preferably 0.005 to 5% by mass, still more preferably 0.01 to 3% by mass.

The oil-based sunscreen cosmetic of the present invention may contain an anionic interface Sex agent. Examples of the anionic surfactant include fatty acid salts having a carbon number of 12 to 24 such as sodium laurate, potassium palmitate, and stearic acid; and alkyl sulfate salts such as sodium lauryl sulfate and potassium lauryl sulfate; An alkyl ether sulfate salt such as oxyethylene lauryl sulfate triethanolamine; N-mercapto sarcosinate such as sodium lauryl sarcosinate; and a fatty acid such as N-myristyl-N-methyl taurate Amine sulfonate; alkyl phosphate such as sodium monostearyl phosphate; polyoxyethylene alkyl ether phosphate such as polyoxyethylene oleyl ether phosphate, sodium polyoxyethylene stearyl ether phosphate; Long-chain sulfosuccinates such as sodium hexyl sulfosuccinate; monosodium N-lauric acid glutamic acid, sodium N-stearyl sulfonyl-N-methyl taurate, N-stearyl sulfhydryl- Long chains such as sodium L-glutamate, N-stearyl sulfhydryl-L-glutamic acid arginine, sodium N-stearyl glutamate, N-myristyl-L-glutamate N-decyl glutamate and the like. Among these, a fatty acid decyl sulfonate is preferred, and the fatty acid is preferably a fatty acid decyl sulfonate having a carbon number of 12 to 24, more preferably sodium N-stearyl sulfonyl-N-methyl taurate. .

The anionic surfactant may be used alone or in combination of two or more. From the viewpoint of stability, the content is preferably 0.001% by mass or more, more preferably 0.001% by mass or more, more preferably in the oil-based sunscreen cosmetic. 0.005 mass% or more, more preferably 0.01 mass% or more, and more preferably 1 mass% or less, more preferably 0.5 mass% or less, further preferably 0.1 mass% or less, and further preferably 0.05 mass% or less. The specific range is preferably 0.001 to 1% by mass, more preferably 0.005 to 0.5% by mass, still more preferably 0.01 to 0.1% by mass, and still more preferably 0.01 to 0.05% by mass.

The cation surfactant and the amphoteric surfactant may be used singly or in combination of two or more kinds, and the amount is preferably 0.5% by mass or less, more preferably 0.1% by mass or less, and further more preferably in an oil-based sunscreen cosmetic. It is preferably 0.01% by mass or less, and further preferably is not contained.

In the oil-in-water type sunscreen cosmetic of the present invention, a polyol other than the component (G) may be contained as a water-soluble solvent other than the component (E). As a polyol other than the above (G) component For example, propylene glycol, isoprene glycol, 1,3-butylene glycol, 1,3-propanediol, hexanediol, trimethylolpropane, glycerin, sorbitol, etc. are mentioned. Among these, one or two or more selected from the group consisting of propylene glycol, isoprene glycol, 1,3-butylene glycol, 1,3-propanediol, hexanediol, and glycerin are preferred in terms of moisture retention. More preferably, it is 1,3-butanediol, 1,3-propanediol, propylene glycol, isoprene, and glycerol. The content of the polyol other than the component (G) is preferably from 0.1 to 25% by mass, more preferably from 0.5 to 20% by mass, even more preferably from 1 to 15% by mass, based on the oil-based sunscreen cosmetic.

The oil-in-water type sunscreen cosmetic of the present invention may contain an oil agent other than the component (A), the component (F) and the component (H). Examples of the oil agent include vegetable oils such as jojoba oil and olive oil; animal oils such as liquid lanolin; and linear or branched hydrocarbon oils such as liquid paraffin, light isoparaffin, squalane, and squalene; A number of high alcohols ranging from 14 to 22. Among these, a hydrocarbon oil is preferred, and from the viewpoint of ease of dispersion, a flow of isoalkane is more preferable. The oil content of the component (A), the component (F) and the component (H) is preferably 0.1 to 25% by mass, more preferably 0.5 to 20% by mass, even more preferably in the oil-based sunscreen cosmetic. It is 1 to 15% by mass.

Examples of the active ingredient include water-soluble vitamins such as ascorbic acid, nicotinamide, and nicotinic acid; cortex extract, licorice extract, aloe extract, field horsetail extract, tea extract, cucumber extract, and clove Extract, Carrot Extract, Witch Hazel Extract, Placenta Extract, Seaweed Extract, Horse Chestnut Extract, Grapefruit Extract, Lohan Cypress Extract, Royal Jelly Extract, Eucalyptus Extract, Lohan Cypress Extract Liquid, etc., plant extracts, etc. Examples of the acid include citric acid, tartaric acid, lactic acid, phosphoric acid, succinic acid, and adipic acid. Examples of the base include potassium hydroxide, sodium hydroxide, triethanolamine, and 2-amino-2-methyl-1- Propanol, arginine, sodium carbonate, and the like.

The present invention may contain a polymer other than the component (B) or the component (C) or a tackifier. Examples of the polymer or the tackifier include sodium alginate, carrageenan, carboxymethylcellulose, hydroxyethylcellulose, guar gum, tri-sacral gum, carboxymethyl chitosan, sodium hyaluronate, Oxazoline modified polyoxo, N, N-dimethylamine ethyl methacrylate diethyl sulfate. N,N-dimethyl methacrylate. a polyethylene glycol dimethacrylate copolymer or the like.

The content of the polymer or the thickener other than the component (B) and the component (C) is preferably less than 2 in the total amount of the oil-based sunscreen cosmetic in terms of ensuring stability and preventing wrinkles. %, more preferably less than 1% by mass, further more than 0.8% by mass, more preferably less than 0.5% by mass, and even more preferably less than 0.3% by mass. The tackifier other than the component (B) and the component (C) may not be contained.

The dosage form of the oil-in-water type sunscreen cosmetic of the present invention can be applied to a liquid type, an emulsion form, a cream form, a paste form, etc., as long as it is an oily type emulsion type, and can be used in a sheet. Or it is collected in a spray container and applied in a mist form or in a mousse-like coating.

The viscosity (25 ° C) of the oil-in-water type sunscreen cosmetic of the present invention is preferably 4000 mPa from the viewpoint of feeling of use and stability. Above s, better system 5000mPa. Above s, and preferably 100000 mPa. s below, better system 80,000 mPa. s below. The "viscosity" here is less than 20000mPa. s, when using a B-type viscometer (TOKI SANGYO VISCOMETER TVB-10M, manufactured by Toki Sangyo Co., Ltd.), the value measured at rotor No. 4, 30 rpm, and 1 minute is as high as 20,000 mPa. In the case of s or more, a value measured by a rotor T-D, 5 rpm, and 1 minute using a B-type viscometer (TOKI SANGYO VISCOMETER TVB-10R, manufactured by Toki Sangyo Co., Ltd.) was used.

The oil-in-water type sunscreen cosmetic of the present invention can be produced, for example, as follows. The method includes the steps of: adding an aqueous phase of the component (C) to a part of the water to be stirred; and further adding a base to the aqueous phase. On the other hand, there is a step of heating and stirring the oil phase containing the component (A) and the component (B) at 80 ° C or higher. Added in the above water phase After the above oil phase is stirred, the other components are added and stirred. When the solid (G) is added, the component (G) is added to a part of the water, heated to a temperature equal to or higher than the melting point of the component (G), stirred and melted, and added together with the other components.

In the above embodiment, the present invention further discloses the following oil-in-water type sunscreen cosmetic.

<1> An oil-based sunscreen cosmetic comprising: (A) an oil-soluble ultraviolet absorber, (B) a dextrin fatty acid ester, and (C) an acrylic polymer, and satisfying the following conditions (1) to (1) 3): (1) (D) powder content is 5% by mass or less; (2) (A) mass ratio of oil-soluble ultraviolet absorber to (B) dextrin fatty acid ester (A/B) is 2.5 or more 40 or less; (3) The mass ratio (A/C) of the oil-soluble ultraviolet absorber (A) to the (C) acrylic polymer is 4.5 or more and 35 or less.

<2> The oil-in-water type sunscreen cosmetic according to the above <1>, wherein the mass ratio (B/C) of the component (B) to the component (C) is preferably 0.2 or more and 3 or less.

<3> The oil-in-water type sunscreen cosmetic according to the above <1> or <2>, wherein (D) the powder content is preferably 5% by mass or less, more preferably 2.7% by mass or less, and particularly preferably 2.5 mass%. % or less, preferably 2% by mass or less, more preferably 1% by mass or less, further preferably 0.8% by mass or less, further preferably 0.5% by mass or less, and further preferably 0.3% by mass or less.

(4) The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned items, wherein the component (A) is preferably a salicylic acid-based, a-amino-benzoic acid-based or diphenyl ketone. , cinnamic acid, benzhydrylmethane, octocrylene, dimethoxybenzylidene dioxyimidazolium propionate 2-ethylhexyl ester, 1-(3,4-dimethyl Oxyphenyl)-4,4-dimethyl-1,3-pentanedione, cinoxadate, methyl-O-aminobenzoate, 3-(4-methylbenzylidene Camphor, octyl three Ketone, diethylaminohydroxybenzhydryl benzoic acid hexyl ester, bisethylhexyloxyphenol methoxyphenyl three One or two or more kinds of methylene bisbenzotriazolyl tetramethyl butyl phenol are selected.

<5> The oil-in-water type sunscreen cosmetic according to any one of <1> to <4> above, wherein the component (A) is preferably 2-ethylhexyl p-methoxycinnamate, 2, 4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-three , 4-tert-butyl-4'-methoxydibenzoylmethane, octocrylene, dimethoxybenzylidene dioxyimidazolium propionate-2-ethylhexyl ester, two Ethylaminobenzobenzyl benzoic acid hexyl ester, bisethylhexyloxyphenol methoxyphenyl three One or two or more kinds of methylene bisbenzotriazolyl tetramethyl butyl phenol are selected.

(6) The water-based sunscreen cosmetic according to any one of the above-mentioned items, wherein the component (A) is preferably contained in an oil-based sunscreen cosmetic in an amount of 0.6% by mass or more. 2% by mass or more, more preferably 5% by mass or more, more preferably 30% by mass or less, more preferably 25% by mass or less, further preferably 20% by mass or less, and still more preferably 18% by mass or less. Further, it is preferably 16% by mass or less.

<7> The oil-in-water type sunscreen cosmetic according to any one of <1> to <6>, wherein the component (B) is preferably an ester of a saturated or unsaturated fatty acid and a dextrin having a linear or branched chain. The preferred fatty acid has a carbon number of 8 to 24, and the preferred fatty acid has a carbon number of 14 to 18, and the average degree of polymerization is preferably 10 to 50, more preferably 20 to 30.

<8> The oil-in-water type sunscreen cosmetic according to any one of the above <1> to <7>, wherein the component (B) is preferably a palmitic acid dextrin ester, palmitic acid/2-ethylhexanoic acid paste. One or more selected from the group consisting of a refined ester, a stearic acid dextrin ester, a palmitic acid/stearic acid dextrin ester, an oleic acid dextrin ester, an isopalmitic acid dextrin ester, and an isostearic acid dextrin ester.

The oil-based sunscreen lotion of any one of the above-mentioned <1> to <8>, wherein the content of the component (B) in the oil-based sunscreen cosmetic is preferably 0.1% by mass or more. It is preferably 0.2% by mass or more, more preferably 0.25 mass% or more, further preferably 0.3% by mass or more, further preferably 0.5% by mass or more, more preferably 5% by mass or less, and still more preferably 3% by mass or less. Further, it is preferably 2% by mass or less, more preferably 1.5% by mass or less, and further preferably 1.3% by mass or less.

<10> The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned items, wherein the mass ratio (A/B) of the component (A) to the component (B) is preferably 3 or more. It is preferably 5 or more, more preferably 6 or more, and is preferably 40 or less, more preferably 30 or less, and still more preferably 25 or less.

<11> The oil-in-water type sunscreen cosmetic according to any one of <1> to <10> above, wherein the component (C) is preferably a methacrylic acid, an acrylic acid, a methacrylic acid ester, an acrylate, or a The monomer selected from the group consisting of acrylamide and acrylamide is a homopolymer of a constituent unit or a copolymer containing two or more kinds of such monomers, more preferably a carboxyvinyl polymer or an alkyl modified carboxyvinyl group. Polymer, polypropylene decylamine, (sodium acrylate/sodium propylene dimethyl dimethyl sulfonate) copolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, (acrylamide) One type or two or more types are selected from the group consisting of a copolymer of ammonium acrylate and a polyacrylate-13.

The oil-based sunscreen lotion of any one of the above-mentioned <1> to <11>, wherein the content of the component (C) in the oil-based sunscreen cosmetic is preferably 0.1% by mass or more. It is preferably 0.25 mass% or more, more preferably 0.3 mass% or more, further preferably 0.4 mass% or more, more preferably 2 mass% or less, more preferably 1.5 mass% or less, further preferably 1.2 mass% or less. Furthermore, it is more preferably 1% by mass or less, and further preferably 0.8% by mass or less.

<13> The oil-in-water type sunscreen cosmetic according to any one of the above <1> to <12>, The mass ratio (B/C) of the component (B) to the component (C) is preferably 0.2 or more, more preferably 0.25 or more, still more preferably 0.4 or more, and further preferably 0.6 or more, and preferably 3 The following is more preferably 2.8 or less, particularly preferably 2.7 or less, most preferably 2.6 or less, further preferably 2.35 or less, further preferably 2.0 or less, and further preferably 1.8 or less.

<14> The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned items, wherein the mass ratio (A/C) of the component (A) to the component (C) is preferably 5 or more. It is preferably 6.5 or more, more preferably 7 or more, and is preferably 33 or less, more preferably 30 or less, and still more preferably 25 or less.

<15> The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned <1> to <14> wherein the component (D) is preferably a composite of an inorganic powder coated with an organic powder, an inorganic powder, and an organic powder. One or two or more kinds of the powders are selected.

The water-based sunscreen lotion according to any one of the above-mentioned items, wherein the component (D) is preferably titanium oxide, and the titanium oxide in the oil-based sunscreen cosmetic is preferably contained. The amount is 5% by mass or less, more preferably 3% by mass or less.

<17> The oil-in-water type sunscreen lotion according to any one of <1> to <16> above which preferably further contains (E) ethanol.

<18> The water-based sunscreen cosmetic according to the above <17>, wherein the content of the component (E) in the oil-based sunscreen cosmetic is preferably 0.1% by mass or more, more preferably 1% by mass or more, and particularly The amount is preferably 2% by mass or more, preferably 5% by mass or more, more preferably 20% by mass or less, further preferably 15% by mass or less, and further preferably 12% by mass or less.

<19> The oil-in-water type sunscreen lotion according to any one of <1> to <18> which further preferably contains (F) an ester oil which is liquid at 25 °C.

<20> The water-based sunscreen cosmetic according to the above <19>, wherein the component (F) is preferably an ester of a fatty acid having a carbon number of 12 to 18 and a branched alcohol having a carbon number of 14 to 22, and a third (C ₁₂ ~ One or more selected from the group consisting of a C ₁₈ branched fatty acid) glyceride, a C ₂ -C ₁₈ dicarboxylic acid di(C ₂ -C ₁₈ alkyl) ester, and an alkyl benzoic acid ester (C ₁₂ -C ₁₅ ) More preferably, it is octyl lauryl myristate, isocetyl myristate, tris-2-ethylhexanoate, diisopropyl sebacate, diethylhexyl sebacate. , di-2-ethylhexanoic acid neopentyl glycol ester, neopentyl glycol dicaprate, alkyl benzoate (C ₁₂ ~ C ₁₅ ), and diisostearyl malate Or two or more.

The oily-type sunscreen lotion according to any one of the above-mentioned items <1> to <20>, which preferably contains (F) an ester oil which is liquid at 25 ° C, and (A) component and ( The sum of the components of F) and the mass ratio of (B) component ((A+F)/B) are preferably 2.75 or more, more preferably 5 or more, still more preferably 10 or more, and more preferably 80 or less. More preferably, it is 60 or less, further preferably 50 or less, and further preferably 30 or less.

<22> The oil-in-water type sunscreen lotion according to any one of the above-mentioned <1> to <21> which preferably contains (F) an ester oil which is liquid at 25 ° C, and (A) component and ( The sum of the components of F) and the mass ratio of (C) component ((A+F)/C) is preferably 4.6 or more, more preferably 10 or more, and is preferably 300 or less, more preferably 200 or less, and further More preferably, it is 70 or less, and further preferably 45 or less.

<23> The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned <1> to <22>, which preferably further comprises (G) polyethylene glycol, and (G) polyethylene glycol is preferably The number average molecular weight is 1000 or more, the (G) component is better, the coefficient average molecular weight is 1000 to 2,500,000, the (G) component is further better, the coefficient average molecular weight is 1,000 to 30,000, and the (G) component and the optimum coefficient are average molecular weights of 20,000 to 30,000.

<24> The water-based sunscreen cosmetic according to the above <23>, wherein the content of the component (G) in the oil-based sunscreen cosmetic is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, and further More preferably, it is 0.05% by mass or more, and preferably 5% by mass or less, more preferably It is preferably 3 mass% or less, and more preferably 1 mass% or less.

<25> The oil-in-water type sunscreen lotion according to any one of the above <1> to <24>, which further preferably contains (H) polyoxyphthalic acid.

<26> The water-based sunscreen cosmetic according to the above <25>, wherein the (H) component is preferably a viscosity at 25 ° C of 50 mPa. s below, better, the viscosity at 25 ° C is 1 ~ 30mPa. s, and further preferably the viscosity at 25 ° C is 1 ~ 20 mPa. Further, it is more preferable to select one or two kinds of dimethylpolysiloxane and dimethylcyclopolysiloxane, and more preferably dimethylcyclopolysiloxane.

<27> The water-based sunscreen cosmetic according to the above <25> or <26>, wherein the content of the component (H) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and still more preferably 0.3%. The mass% or more is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 2% by mass or less.

<28> The oil-in-water type sunscreen lotion according to any one of the above <1> to <27>, wherein the HLB system 10-20 which is preferably a nonionic surfactant and more preferably a nonionic surfactant is used. Further, the HLB system of the nonionic surfactant is 12-18.

<29> The water-based sunscreen lotion according to the above <28>, wherein the content of the nonionic surfactant is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and still more preferably 0.01% by mass or more. It is preferably 8% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less.

<30> The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned items, wherein the anionic surfactant further preferably contains an anionic surfactant, and the anionic surfactant is preferably contained in an amount of 0.001% by mass or more. More preferably, it is 0.005 mass% or more, further preferably 0.01 mass% or more, more preferably 1 mass% or less, more preferably 0.5 mass% or less, further preferably 0.1 mass% or less, and further preferably 0.05 mass%. %the following.

The oil-in-water type sunscreen cosmetic according to any one of the above-mentioned items <1> to <30>, which preferably further contains an anionic surfactant, and preferably contains a fatty acid decyl sulfonic acid or a salt thereof. More preferably, it contains a fatty acid decyl sulfonic acid or a salt thereof derived from a fatty acid having 12 to 24 carbon atoms, and more preferably contains N-stearyl sulfonyl-N-methyl taurate.

The oil-in-water type sunscreen lotion of any one of the above-mentioned <1> to <31>, further preferably contains a polyol other than the (G) component, and more preferably contains 1,3-butyl One or two or more kinds of polyhydric alcohols are selected from the group consisting of diol, 1,3-propanediol, propylene glycol, isopropyl diol and glycerin.

<33> The water-based sunscreen cosmetic according to the above <32>, wherein the polyol content other than the component (G) is preferably 0.1 to 25% by mass, more preferably 0.5 to 20% by mass, and further preferably 1 to 15% by mass.

The oily-type sunscreen lotion according to any one of the above-mentioned items, wherein the oil-based sunscreen lotion (A), the component (F), and the component (H) are preferably contained.

<35> The oil-in-water type sunscreen cosmetic according to any one of <1> to <34>, wherein the viscosity at 25 ° C is preferably 4,000 mPa ‧ or more, more preferably 5000 mPa ‧ s or more, and is preferably It is 100000 mPa ̇ s or less, more preferably 80,000 mPa ‧ s or less.

[Examples]

Hereinafter, the present invention will be further described in detail by way of examples, but the invention is not limited thereto.

At the beginning of the description, the functional evaluation, secondary adhesion, and stability evaluation methods performed in the following Examples 1 to 14 and Comparative Examples 1 to 7 will be described.

(1) Evaluation of the sense of use

10 persons by professional reviewers, for the actual use of the oil-type defense shown in Table 1 and Table 2 When drying the cosmetics, there is no stickiness. Sticky, with or without wrinkles (evenly dispersed, no unevenness), tenderness. The respective use characteristics such as transparency and moisturizing feeling were evaluated in accordance with the following evaluation criteria. The average value of the evaluation results is shown in Tables 1 and 2.

(evaluation benchmark) (a) Whether there is stickiness. Sticky

5 points: Sticky. Very sticky

4 points: Sticky. Less sticky

3 points: normal (all of the above)

2 points: sticky. More sticky feeling

1 point: Sticky. Very sticky

(b) Whether there is wrinkling (evenly dispersed, no unevenness occurs)

5 points: no wrinkles, even dispersion, unevenness, very little

4 points: no wrinkles, even dispersion, less unevenness

3 points: normal (all of the above)

2 points: easy to wrinkle, not evenly dispersed, uneven

1 point: wrinkles, dispersion, unevenness

(d) Water tenderness. Transparency

5 points: transparent to the skin, feeling very tender

4 points: transparent to the skin, feeling supple

3 points: Although it is not easy to be transparent to the skin, it feels tender

2 points: not easily transparent to the skin, no water tenderness

1 point: skin is white, no water tenderness

(e) moisturizing

5 points: skin moisture is very high

4 points: high skin moisturizing

3 points: normal (all of the above)

2 points: less moisturizing skin

1 point: skin moisturizing is very small

(2) Secondary adhesion evaluation

The sample was uniformly coated on a PMMA plate at 2 mg/cm ² and allowed to dry. After the sample was dried, the absorption spectrum (wavelength: 350 nm) transmittance (%) of the predetermined eight places on the PMMA plate was measured using an SPF analyzer (SPF 290S plus, manufactured by Optometricus USA, Inc.), and the average of eight points was obtained. Thereafter, the coated surface of the PMMA plate was placed on the face paper, and a load of 450 g was applied from above the PMMA plate for 10 minutes, and after adhering to the face paper, the transmittance (%) of the PMMA plate was measured. The difference (%) in transmittance before and after attachment was calculated, and the smaller the difference, the lower the secondary adhesion was evaluated. The difference in transmittance (%) is shown in Tables 1 and 2.

(3) Stability evaluation Stability evaluation

The sample was stored at room temperature of 30 ° C for one month, and it was visually confirmed whether or not the oil phase was separated in the cosmetic. The presence or absence of oil phase separation was evaluated based on the following criteria.

×: See the obvious oil phase separation

△: I saw a slight oil phase separation

○: No oil phase separation was seen

[Examples 1 to 14 and Comparative Examples 1 to 7]

The oil-based sunscreen cosmetics shown in Tables 1 and 2 are manufactured according to the usual method, and the above is performed. Evaluation. The results are combined and summarized in Tables 1 and 2.

*1 Uvinul MC80 (manufactured by BASF Corporation)

*2 Uvinul Aplus (manufactured by BASF)

*3 LEOPERL KL2 (made by Chiba Powder Co., Ltd.)

*4 LEOPERL MKL2 (manufactured by Chiba Powder Co., Ltd.)

※5 S faith MX-10 (made by Sakamoto Pharmaceutical Co., Ltd.)

*6 PEMULEN TR-1 (made by Lubrizol)

*7 SIMULGEL EG (manufactured by SEPPIC), the content is the purity value of the polymer in parentheses

From the results of Tables 1 and 2, the oil-in-water type sunscreen cosmetics of the present invention (Examples 1 to 14) can suppress sticking and stickiness due to the ultraviolet absorber, and prevent wrinkles during coating. It can be applied evenly, has good water and transparency, and has a good moisturizing feeling. Moreover, the secondary adhesion to clothes and the like is also low, and the storage stability is also good.

On the other hand, in Comparative Example 1 and Comparative Example 3 in which the component (B) was another component or the component (B) was not contained, adhesion and stickiness were observed, and secondary adhesion was also large. Further, in Comparative Example 2 and Comparative Example 4, which did not contain the component (C) or the component (C), the storage stability was low, wrinkles occurred during coating, and the moisturizing feeling and the water tenderness were insufficient. . Further, in Comparative Examples 5 and 6 in which the mass ratio (A/B) of the component (A) to the component (B) was 2.5 or more and 47 or less, adhesion and stickiness were observed, and wrinkles and the like were also generated. difference. In Comparative Example 6 in which the mass ratio (A) of the component (A) to the component (C) was 4.5 or more and 35 or less, the stability was poor and the separation of the preparation was observed.

[Example 15 and Comparative Example 8]

The water-in-oil type sunscreen cosmetics of Example 15 and Comparative Example 8 described in Table 3 were produced, and the state of the coating film and the persistence of the moisturizing feeling were evaluated.

(Production method)

. At the room temperature, the component (C) was added while stirring in a water-dispensing tank, and the alkali phase was added to adjust the aqueous phase. The components (A) and (B) were heated and stirred at about 80 ° C to adjust to an oil phase. Thereafter, an oil phase was added to the aqueous phase, and the water-based sunscreen cosmetic described in Table 3 was obtained by stirring.

(1) Coating film state (appearance evaluation)

0.2 g of a cosmetic material was applied to a circular shape of 4 cm in diameter of artificial leather made of urethane, and the mixture was immersed for 1 minute using an index finger. Thereafter, it was allowed to stand overnight for drying.

The state of the film was visually judged by three professional examiners in accordance with the following evaluation criteria. The average value of the evaluation results is shown in Table 3.

(evaluation benchmark)

5 points: A uniform film is formed.

4 points: A substantially uniform film is formed.

3 points: I saw a slightly uneven part of the film.

2 points: It is not possible to form a uniform film.

1 point: A uniform film was not formed.

(2) Continuation of moisturizing

About 0.1 g of the cosmetic material was taken by the professional examiner, and the area of about 2 cm × 5 cm was applied to the inner side of the forearm, and the moisturizing feeling after 3 hours was evaluated according to the following evaluation criteria. The average value of the evaluation results is shown in Table 3.

(evaluation benchmark)

5 points: skin moisture is very high

4 points: high skin moisturizing

3 points: skin moisture is slightly higher

2 points: less moisturizing skin

1 point: skin moisturizing is very small

*1, *3, and *6 are the same as Table 1.

It is understood from Table 3 that the components (A), (B), and (C) are contained, and A/B is 2.5 or more and 47 or less, A/C is 4.5 or more and 35 or less, and B/C is 0.2 or more and 3 The following oil-based sunscreen lotion has a good state after application, and thus has a good touch after application and a moisturizing feeling.

[Examples 16 to 27 and Comparative Examples 9 to 10]

The oil-in-water type sunscreen cosmetics of Examples 16 to 27 and Comparative Examples 9 to 10 described in Table 4 were applied to the skin for coating properties (whether or not wrinkles), the persistence of moisturizing feeling, and the feeling of pressure after application. The evaluation was carried out in accordance with the evaluation criteria described later. The average value of the evaluation results is shown in Table 4.

(Production method)

. At the room temperature, the component (C) was added while stirring with a disperser in a mixing tank in which a part of water was placed, and the alkali was added to adjust the aqueous phase. The components (A) and (B) were heated and stirred at about 80 ° C to adjust to an oil phase. The component (G) is added to the remaining water and heated and stirred. Thereafter, an oil phase is added to the aqueous phase, and the remaining components are added by stirring to obtain an oily sunscreen cosmetic in water.

(1) The presence or absence of wrinkles (uniform dispersion, no unevenness)

About 0.1 g of the cosmetic material was taken by three professional examiners, and an area of about 2 cm × 5 cm was applied to the back of the hand, and evaluation was performed in accordance with the following evaluation criteria.

5 points: no wrinkles, uniform dispersion, uneven unevenness

4 points: no wrinkles, uniform dispersion, less unevenness

3 points: normal (all of the above)

2 points: easy to wrinkle, not evenly dispersed, uneven

1 point: wrinkled, undispersed, uneven

(2) Continuation of moisturizing

About 0.1 g of cosmetics was taken by the professional examiner, and the area of about 2 cm × 5 cm was applied to the inside of the forearm, and the moisturizing feeling after 3 hours was evaluated according to the following evaluation criteria.

5 points: skin moisture is very high

4 points: high skin moisturizing

3 points: skin moisture is slightly higher

2 points: less moisturizing skin

1 point: skin moisturizing is very small

(3) Whether there is pressure feeling after coating

About 0.1 g of the cosmetic material was taken by three professional examiners, and an area of about 2 cm × 5 cm was applied to the back of the hand, and evaluation was performed in accordance with the following evaluation criteria.

5 points: no feeling of oppression at all

4 points: almost no feeling of oppression

3 points: a little feeling of oppression

2 points: feel the sense of oppression

1 point: The pressure is very strong

(4) refreshing feeling

About 0.1 g of the cosmetic material was taken by three professional examiners, and an area of about 2 cm × 5 cm was applied to the back of the hand, and evaluation was performed in accordance with the following evaluation criteria.

5 points: very refreshing

4 points: a sense of refreshment

3 points: slightly refreshing

2 points: not very refreshing

1 point: no refreshing feeling

(5) Measuring conditions of viscosity

When the viscosity is less than 20000 mPa ‧ at 25 ° C, the B-type viscometer (TOKI SANGYO VISCOMETER TVB-10M) rotor N0.4, 30 rpm, 1 min is measured, when the viscosity is above 20000 mPa ̇s The measurement was carried out by a B-type viscometer (TOKI SANGYO VISCOMETER TVB-10R) rotor TD, 5 rpm, and 1 min.

*1, *2, *3, and *6 are the same as Table 1.

*8 series PEMULEN TR-2 (made by Lubrizol)

※9 Series Cosmol 525 (Nissin Oillio Group Co., Ltd.)

*10 series Finsolv TN (Innospec Active Chemicals LLC)

※11 series PEG-20000S (Sanyo Chemical Industry Co., Ltd.)

※12 series KF-96A-10CS (manufactured by Shin-Etsu Chemical Co., Ltd.)

As is apparent from Table 4, the oil-in-water type sunscreen cosmetic of the present invention prevents crease, maintains a moisturizing feeling, suppresses a feeling of pressure, and has a refreshing feeling of use. In Comparative Example 9, which did not contain the component (B), wrinkles and moisturizing feeling did not persist. In Comparative Example 10 in which B/C was out of the range of 0.2 or more and 3 or less, there was a feeling of pressure, and a refreshing feeling of use could not be obtained.

The formulation examples of the oil-in-water type sunscreen cosmetic of the present invention are listed below. It can be expected to achieve excellent results.

Formulation Example 1 (water-based sunscreen)

Formulation Example 2 (oil-type sunscreen)

*1: Amount of active ingredient

Formulation Example 3 (oil-based sunscreen)

Formulation Example 4 (oil-type sunscreen)

Claims (12)

An oil-based sunscreen cosmetic comprising: (A) an oil-soluble ultraviolet absorber, (B) a dextrin fatty acid ester, (C) an acrylic polymer, and (D) a powder, and satisfying the following conditions ( 1)~(5): (1) (B) The content of the dextrin fatty acid ester in the oily sunscreen cosmetic is 0.1% by mass or more and 2% by mass or less; (2) (D) Oily sunscreen in water The powder content in the cosmetic is 0% by mass or more and 5% by mass or less; (3) The mass ratio (A/B) of the (A) oil-soluble ultraviolet absorber to the (B) dextrin fatty acid ester is 2.5 or more. And (47) (A) the mass ratio (A/C) of the oil-soluble ultraviolet absorber to the (C) acrylic polymer is 4.5 or more and 35 or less; (5) the (C) acrylic polymer, A homopolymer containing a monomer selected from methacrylic acid, acrylic acid, methacrylic acid ester, acrylate, methacrylamide, and acrylamide as a constituent unit, or two or more kinds of these monomers Copolymer. The water-oil type sunscreen cosmetic according to the first aspect of the invention, wherein the mass ratio (B/C) of the component (B) to the component (C) is 0.2 or more and 3 or less. The water-based sunscreen lotion according to claim 1 or 2, wherein the powder content of the (D) water-based sunscreen cosmetic is 3% by mass or less. The water-based sunscreen cosmetic according to claim 1 or 2, wherein the mass ratio (A/B) of the component (A) to the component (B) is 5 or more and 30 or less. The water-oil type sunscreen cosmetic according to claim 1 or 2, wherein the mass ratio (A/C) of the component (A) to the component (C) is 5 or more and 35 or less. For example, the oil-in-water type sunscreen cosmetic material of claim 1 or 2, wherein (B) water The content of the dextrin fatty acid ester in the oil-type emulsified cosmetic is 0.25 mass% or more and 1.5 mass% or less. The water-based sunscreen cosmetic according to the first or second aspect of the invention, wherein the content of the acrylic polymer in the (C) water-based emulsion cosmetic is 0.1% by mass or more and 2% by mass or less. The water-based sunscreen cosmetic according to claim 1 or 2, further comprising (F) an ester oil which is liquid at 25 ° C; and a total of (A) component and (F) component, and (B) The mass ratio of the component ((A+F)/B) is 12 or more and 22 or less. An oil-in-water type sunscreen cosmetic according to claim 1 or 2, further comprising (F) an ester oil which is liquid at 25 ° C; and a total of (A) component and (F) component, and (C) The mass ratio of the component ((A+F)/C) is 4.6 or more and 300 or less. An oil-in-water type sunscreen cosmetic according to claim 1 or 2, which further contains (E) ethanol. An oil-in-water type sunscreen cosmetic according to claim 1 or 2, which further comprises (G) polyethylene glycol. An oil-in-water type sunscreen cosmetic according to claim 1 or 2, which further comprises (H) a polyoxygenated oil.