TWI597067B - Spray-type sunscreen cosmetic - Google Patents

Description

Spray type sunscreen cosmetics

The present invention relates to a spray-type sunscreen cosmetic which comprises a water-based emulsion containing bisethylhexyloxyphenol methoxyphenyltriazine and a specific ester oil as a stock solution, and a liquefied gas as a propellant. The detailed description relates to a spray-type sunscreen cosmetic which is excellent in stability and does not clog the nozzle, can be uniformly sprayed on the skin and hair, and has high transparency and no stickiness.

Sunscreen cosmetics are used to block the ultraviolet rays in the sun to protect the skin from the harmful effects caused by ultraviolet rays. At present, metal oxides such as zinc oxide and titanium oxide and organic ultraviolet absorbers have been developed. A sunscreen lotion with high UV protection. However, when a large amount of metal oxide is blended, problems such as an unconformity of the powder or an unnatural whiteness after application are caused, and an organic ultraviolet absorber having a high ultraviolet ray-protecting effect is mostly poorly soluble. (Difficult to dissolve in water and non-polar oils), and there are problems in stability, and various reviews have been carried out at present (see, for example, Patent Documents 1, 2).

On the other hand, spray-type sunscreen cosmetics can be easily applied to the skin. A wide range of hair, especially spray formulations, are excellent in use because the fingers are not wetted by the makeup and can not be applied evenly by hand. Therefore, a spray type dosage form is also being applied to a sunscreen cosmetic (refer to, for example, Patent Documents 3 and 4).

Prior technical document Patent document

Patent Document 1: Special Open 2010-100553

Patent Document 2: JP-A-2011-236201

Patent Document 3: JP-A-2008-543939

Patent Document 4: JP-A-2010-270060

The spray-type cosmetic is a spray agent, which is a spray-type type of a powder such as a metal oxide having a UV-blocking effect and a poorly soluble ultraviolet absorber because it is a special environment in which a liquefied gas and a compressed gas coexist and is pressurized. Aggregation and crystallization occur in the preparation container, and as a result, for example, the ultraviolet ray-preventing effect is lowered, particularly in the case of a spray formulation, the clogging nozzle and the ejection property are deteriorated, and there is a problem that the spray is uneven. Further, it is possible to form fine spray particles using a liquefied gas. Therefore, the subject of the present invention is to provide a non-soluble ultraviolet absorber having a high ultraviolet ray defense ability by coherently coexisting with a liquefied gas, which has a high ultraviolet ray-defense effect and can be uniformly sprayed on the skin and hair without stickiness. Greasy high transparency spray sunscreen Cosmetics are the subject.

In view of the current status quo, the present inventors conducted intensive review and found that by combining a mixture of bis-hexyloxyphenol methoxy methoxytriazine containing a poorly soluble ultraviolet absorber, a water-based emulsion with a specific ester oil And liquefied gas, a spray-type sunscreen lotion with high UV protection effect, evenly sprayed on the skin and hair, and without transparency.

That is, the present invention provides the following constituents.

[1] A spray-type sunscreen cosmetic comprising the following components (a) to (c): (a) bisethylhexyloxyphenol methoxyphenyl triazine, 1 to 3% by mass, ( b) a diester of propylene glycol and a fatty acid having 8 to 10 carbon atoms, 5 to 50% by mass, (c) ethylhexyl methoxycinnamate, and a stock solution of an aqueous emulsion of 5 to 15% by mass of oil, The mass ratio of the component (a) to the components (b) and (c) is in the range of 1:10 to 1:20 with the spray of the liquefied gas as the propellant.

[2] The spray-type sunscreen cosmetic according to [1], wherein the water-based emulsion in the oil further contains the component (d) polyoxygenated oil.

[3] The spray type sunscreen cosmetic according to [1] or [2], wherein the ratio of the water-type emulsion to the liquid gas in the oil in the spray-type sunscreen cosmetic is 15 in the oil-based emulsion. ~40% by mass and liquefied gas are 60~85%.

The spray type sunscreen cosmetic of the invention can stably blend the poorly soluble ultraviolet absorber, has high ultraviolet defense effect, has no sticky feeling and is transparent after application, and has good sprayability and uniformity after a long time. Sprayed on the skin and hair, it has the advantage of excellent usability.

Hereinafter, the configuration of the present invention will be described in detail. In the present specification, when "X~Y" indicates a numerical range, the range includes X and Y at both ends.

The spray-type sunscreen cosmetic of the present invention is a container containing a water-based emulsion of the components (a) to (c) and a liquefied gas as a propellant, and is filled in a container having a pressure-resistant regulating valve. The spray system can be adjusted to spray (fog), foam (bubble), etc. depending on the purpose of use, and can be maintained in a spray state or can be used after being pushed by hand. In the present invention, the spray type is preferred from the viewpoint of being uniformly sprayed on the skin and the hair. Therefore, the ratio of the water-based emulsion to the liquefied gas in the oil in the spray is preferably 15 to 40% by mass in the oil (hereinafter referred to simply as "%"), and the liquefied gas system is 60. ~85% is preferred, the water-based emulsion is 20-30%, and the liquefied gas system is 70-80% (the total amount of water-based emulsion and liquefied gas is 100%). In this range, no crystal precipitation is observed even after a long period of time, and when it is used as a spray-type sunscreen cosmetic, it has excellent stability and can be uniformly sprayed.

(water-based emulsion in oil: stock solution)

The component (a) used in the present invention is a poorly soluble ultraviolet absorber which is poorly soluble in water and a non-polar oil, and the component is 2,4-bis-[{4-(2-ethylhexyloxy-2-hydroxy}) -Phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine. INCI name (International Nomenclature Cosmetic Ingredient labeling Name, international nomenclature for cosmetic ingredients) is diethylhexyloxyphenol The oxyphenyltriazine is commercially available, for example, as a sunscreen agent Tinosorb S (manufactured by BASF Corporation).

The content of the component (a) in the aqueous emulsion in the oil of the present invention is 1 to 3%. When the content is less than 1%, the ultraviolet protection effect becomes low, and when it exceeds 3%, the feeling of application when the hand is applied becomes heavy and the touch is inferior.

The component (b) used in the present invention is a diester of propylene glycol and a fatty acid having 8 to 10 carbon atoms, and is a liquid ester oil at 25 °C. Specific examples thereof include propylene glycol dicaprate, propylene glycol dicaprylate, and propylene glycol di(octanoic acid). These may be used alone or in combination of two or more.

The content of the component (b) in the aqueous emulsion in the oil of the present invention is 5 to 50%, more preferably 15 to 40%. When the content is less than 5%, the component (a) may precipitate due to passage of time, which may cause clogging of the bottle mouth. When the content exceeds 50%, the greasy feeling of the skin becomes strong after use, and the touch is inferior. When the content is 15 to 40%, it can be uniformly sprayed, and it can be made into a finished product which is excellent in touch.

The component (c) used in the present invention is ethylhexyl methoxycinnamate, which is a liquid ultraviolet absorber at 25 °C. The content of the component (c) in the aqueous emulsion of the oil is 5 to 15% by mass, more preferably 7 to 12%. When the content is less than 5%, the component (a) will precipitate out over time, causing the bottle to be blocked. Possibility, when it exceeds 15%, it will produce a sticky feeling and cause the feeling to be inferior. When the content is 7 to 12%, it can be uniformly sprayed, and it can be made into a finished product which is excellent in touch.

In the oil-type emulsion of the present invention, the mass ratio of the component (a) to the components (b) and (c) (a): (b) + (c) is 1:10 to 1:20, more preferably 1:10~1:15. In this range, a cosmetic material having excellent stability and no stickiness can be obtained.

In the oil-type emulsion of the oil of the present invention, the component (d) polyoxyxylene oil may be further blended. The component (d) is not particularly limited, but is preferably a liquid at 25 ° C, and examples thereof include octamethylcyclotetraoxane, decamethylcyclopentaoxane, and dodecamethylcyclopentanyloxy. Alkane, hexamethyldipolyoxane, octamethyltrioxane, tetradecyltetraoxane, methyl polytrimethyloxane, octyl polytrimethyloxane, dimethyl One type or two or more types of the above may be used as the polyoxyalkylene or the methylphenyl polyoxyalkylene. In general, many ultraviolet absorbers are known to have poor compatibility with polyoxyxene oil, and since component (a) is not an exception, the content of polyoxyxene oil is preferably as small as possible, but considering sunscreen cosmetics. When using the feeling, it is preferred to blend about 1 to 20% of the water-based emulsion in the oil. If it is in this range, it can be obtained with good stability and a refreshing feeling of use. a polyfluorene oxide powder such as polymethyl sesquioxane which is widely used as a tactile sensitizer, and a polyoxyxide surface which is a metal oxide which protects against ultraviolet rays. When the material is processed, it is more preferable from the viewpoint of improving the stability.

Further, the water-based emulsion in the oil of the present invention can be appropriately mixed in order to impart various effects as needed within the range not impairing the effects of the present invention. a component blended in a general cosmetic, that is, an oil component other than the components (b) to (d), a surfactant, an aqueous component, an ultraviolet absorber other than the components (a) and (c), a powder, Water-soluble polymer, humectant, antioxidant, anti-fading agent, preservative, medicinal ingredient, stabilizer, pigment, flavor, etc.

The oily component is not particularly limited as long as it is used in general cosmetics other than the components (b) to (d), and examples thereof include solid oils, semi-solid oils, and liquid oils of any nature, such as animal oil, vegetable oil, and synthetic oil. , volatile oil hydrocarbons, oils, waxes, hydrogenated oils, ester oils, fatty acids, higher alcohols, fluorine-based oils, lanolin derivatives, oily gelling agents, oil-soluble resins Wait.

Specific examples include mobile paraffin, squalane, petrolatum, paraffin wax, ground wax, microcrystalline wax, polyethylene glycol, brown carbon wax, Fischer-Tropsch wax, light mobile isoparaffin, and different ten Oils such as dioxane, hydrocarbons, wood wax, olive oil, sunflower oil, eucalyptus oil, macadamia nut oil, beeswax, palm wax, rehmannia wax, cetyl wax, jojoba oil, cetyl wax Octanoic acid, isopropyl myristate, isopropyl palmitate, octyldodecanol myristate, glyceryl tricaprylate, diglyceryl diisostearate, diglyceryl triisostearate, three Eucalyptus glyceride, diisostearyl malate, neopentyl glycol dicaprate, tridecyl isodecanoate, isotridecyl isononate, alkanol benzoate, Ester esters of diisopropyl sebacate, diethylhexyl sebacate, cholesterol fatty acid esters, N-laurel-L-glutamic acid-bis (cholesterol, behenyl alcohol, octyldodecanol) , higher alcohols such as stearyl alcohol, hexadecanol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, perfluorooctane Fluorine oils such as alkane, perfluoropentane, perfluoropolyether, lanolin, lanolin acetate, lanolin fatty acid isopropanol, lanolin alcohol and other lanolin derivatives, dextrin valerate, dextrin laurel Acid ester, dextrin palmitate, dextrin myristate, dextrin stearate, dextrin behenate, dextrin coconut oil fatty acid ester, (palmitic acid/valeric acid) dextrin, sucrose fatty acid Oil-soluble resin such as ester, starch fatty acid ester, 12-hydroxystearate, calcium stearate, oil gelling agent, pentaerythritol hydrogenated rosinate, specific alkyl methyl polyoxyalkyl acrylate Wait. These oily components may be used in one or more kinds as needed, and from the viewpoint of stability, an alkanol benzoate, diisopropyl sebacate, diethylhexyl sebacate is preferred. .

As the surfactant, any of the surfactants generally used for cosmetics can be used, and examples thereof include a nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant. Specific examples thereof include glycerin fatty acid esters and alkylene glycol additions thereof, polyglycerin fatty acid esters and alkylene glycol additions thereof, sorbitol fatty acid esters and alkylene glycol additions thereof, and sucrose fatty acid esters. Polyoxyethylene hardened castor oil, polyoxyalkylene alkyl co-modified organopolyoxyalkylene, polyether modified organopolyoxyalkylene, and the like. These surfactants may be used in combination with one or more of them, but it is necessary to blend a nonionic surfactant of HLB 7 or less in order to prepare an aqueous emulsion in oil. Among them, from the viewpoint of stability, a nonionic surfactant composed of an ester conjugate of polyhydroxystearic acid, such as dimeric hydroxystearic acid PEG-30, and a lipophilic polyoxynoxy surfactant such as PEG. -9 polydimethyl oxirane ethyl polydimethyl siloxane, lauryl PEG-9 polydimethyl oxirane ethyl polydimethyl oxane, etc. are preferred.

Examples of the water-based component include distilled water derived from plants such as ionized water, distilled water, pure water, hot spring water, rose water, lavender water, and the like, and other alcohol-soluble solvents such as ethanol and isopropyl alcohol. An alcohol such as propylene glycol, 1,2-pentanediol, 1,3-butylene glycol, dipropylene glycol or polyethylene glycol; or a glycerol such as glycerin, diglycerin or polyglycerin.

Examples of the ultraviolet absorber include a benzophenone type, a PABA type, a cinnamic acid type, a salicylic acid type, and a polyfluorene type. Specific examples thereof include 2-[4-(diethylamine)-2-hydroxybenzhydryl]benzoic acid hexyl ester, benzophenone, and 4-third-4'-methoxybenzhydrylmethane. , 2-hydroxy-4-methoxybenzophenone, salicylic acid 2-ethylhexane, p-dihydroxypropyl benzoic acid ethyl ester, dimethoxybenzylidene dioxoimidazolidinyl propionic acid 2-ethylhexyl ester, 2,2'-methylenebis[6-(2H-benzotriazolyl-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol ], 1,3,5-triazine-2,4-bis-[{4-(2-ethylhexyloxy-2-hydroxy)-phenyl}-6-(4-methoxyphenyl)- 1,3,5-triazine, diethyl dimethylbenzylmalonate, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid and sodium salt thereof, polyoxyloxa-15 Wait.

The powder may be a powder which is generally used for cosmetics, and for the purpose of adjusting the touch, for example, polyfluorene powder, talc, sericite, cerium oxide, mica, kaolin, calcium carbonate, alumina, poly Powders such as ethylene powder, polymethyl methacrylate, and nylon powder. In addition, a metal oxide powder, for example, zinc oxide, titanium oxide, cerium oxide, or the like, may be used in order to impart an ultraviolet ray-protecting effect, and one or more of these may be used in combination. The powders may be subjected to well-known surface treatment methods such as ceria treatment, alumina treatment, aluminum hydroxide treatment, fluorine compound treatment, polyoxane treatment, polyfluorene treatment. Oxygen resin treatment, pendant treatment, Silane coupling agent treatment, titanate coupling agent treatment, decane treatment, oil treatment, N-acetyl lysine treatment, polyacrylic acid treatment, Surface treatment is carried out by methods such as metal soap treatment, acrylic resin treatment, and metal oxide treatment. However, in the present invention, when the metal oxide powder is blended in a large amount, the transparency is lowered and the uncomfortable feeling is enhanced, and the blending amount is 10% or less in the water-based emulsion in the oil, and more preferably 5 %the following.

Examples of the humectant include protein, mucopolysaccharide, collagen, elastin, keratin, etc., antioxidants such as α-tocopherol, ascorbic acid, and the like, and cosmetic ingredients such as vitamins, anti-inflammatory agents, crude drugs, and the like, and preservatives such as Monohydroxybenzoate, phenoxyethanol, 1,2-pentanediol, and the like.

The method for producing the aqueous emulsion in the oil of the present invention is not particularly limited and can be prepared according to a usual method. For example, the component (a) can be thermally dissolved in the component (b) and the component (c), and further with other oily components. The surfactant is mixed and the aqueous component is emulsified to obtain. Further, when the powder is blended, it is preferably emulsified after sufficiently dispersing in advance in the oil component or the water component.

The mass ratio of the oily component to the aqueous component in the water-type emulsion of the oil of the present invention (oily component): (aqueous component) varies depending on the formulation, but is preferably 1:3 to 3:1, and 1:2~ 2:1 is better. Further, the content of the emulsifier in the aqueous emulsion in the oil of the present invention is such that the aqueous component can be emulsified in an oily component in an amount of from 0.1 to 5% by weight of the aqueous emulsion. If it is in these ranges, it can be stably emulsified, and even if crystallization does not occur over time, it can be obtained when making a spray-type sunscreen cosmetic. A finished product that is excellent in stability and can be sprayed evenly.

(spraying agent)

The liquid gas system used in the present invention may be used in combination of one or more selected from the group consisting of hydrocarbons having 2 to 5 carbon atoms and dimethyl ether. Examples of the hydrocarbon having 2 to 5 carbon atoms include ethane, propane, n-butane, isobutane, n-pentane, isopentane, and neopentane. Among them, since the spray container can be compatible with the oil phase other than the water-based emulsion in the oil and can reduce the interaction with the internal water phase, the stability over a long period of time can be improved, and it is preferable to use a lipophilic hydrocarbon. . Further, from the viewpoint of the stability at a high temperature, it is preferred to use a liquefied petroleum gas (hereinafter referred to as LPG 0.15) having a pressure of 0.15 MPa at 20 ° C.

The filling method of the spray of the present invention is not particularly limited, and the water-type emulsion in the oil prepared according to the usual method may be filled in a pressure resistant container, and the spray pressure regulating valve is fixed to the container, and then injected through the pressure regulating valve. Liquefied gas. Further, a spray product can be produced by providing the spray portion for the purpose of the spray pressure regulating valve. Further, depending on the viscosity of the water-based emulsion in the oil, etc., in order to homogenize the filling process, the oil phase, the water phase, and the powder for forming the water-based emulsion in the oil may be individually filled and then injected. Liquefied gas.

[Examples]

The invention will now be described in further detail by way of examples. And the invention is not caused by There are any restrictions on these examples.

Examples 1 to 6 and Comparative Examples 1 to 8: The spray type sunscreen cosmetic was prepared according to the composition shown in Table 1 and the following production method. The obtained cosmetic was evaluated in accordance with the following method, and the results are shown in Table 1.

A: The dissolved components (1) to (3) and (6) to (8) are heated. B: After mixing the components (4) to (5) and (9) and (10) in A, (11) was uniformly dispersed. C: The components (12) to (16) were mixed, added to B, and emulsified to obtain a stock solution. D: After filling 9 g of the raw liquid obtained in C in a pressure-resistant container made of transparent glass and aluminum, the pressure-resistant regulating valve was fixed, and 21 g of LPG 0.15 was filled in the pressure-resistant container by the pressure-resistant regulating valve. Spray-type sunscreen lotion.

(Evaluation Method 1: Crystallization)

The spray compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled in a pressure-resistant container made of transparent glass, and placed in an accelerated test over time stability at -20 ° C for 2 weeks to be recovered. The presence or absence of crystal precipitation was visually confirmed at 25 °C.

[judgement standard]

(decision): (evaluation)

○: No crystal precipitation was observed.

×: Crystals were found to precipitate.

(Evaluation method 2: No nozzle is blocked)

The spray compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled in a pressure-resistant container made of aluminum (model: shaft: 0.4 m diameter, outer cover: 0.8 × 0.55 mm diameter, button: 0.5 mm diameter). The samples were stored at 5 ° C and 40 ° C for 1 month, and the samples were returned to room temperature, and sprayed at intervals of 25 ° C for 10 seconds. The sprayability at the time of use was evaluated by the following evaluation criteria.

[judgement standard]

(decision): (evaluation)

○: It can be used in a uniform spray state until it is used up.

×: The spray state was uneven, and the nozzle was clogged on the way and could not be used.

(Evaluation method 3: transparency)

The spray compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were placed in a pressure-resistant container made of aluminum, and a black hair bundle of 10 cm was sprayed from a position of 15 cm for 3 seconds to visually observe that it was just sprayed. The state of the time.

[judgement standard]

(decision): (evaluation)

○: It is transparent after spraying.

×: I feel very white and obvious.

(Evaluation method 4: no sticky feeling)

Entrusted 20 subjects who specially evaluated cosmetics, sprayed the spray compositions of Examples 1 to 6 and Comparative Examples 1 to 8 on the left forearm for 3 seconds, then wiped them by hand, from use to use. For the "no sticky feeling", each of the following evaluation criteria was used for the 5-stage evaluation, and each sample was evaluated, and the average points of the evaluation points of all the subjects were determined according to the following criteria.

[judgement standard]

(Comment): (Results)

5 points: excellent

4 points: good

3 points: ordinary

2 points: slightly worse

1 point: not good

[judgement standard]

(Judgment): (Average points)

◎: 4.5~5.0 points

○: 3.5~ less than 4.5 points

△: 2.0~ not up to 3.5 points

×: 1.0~ not up to 2.0 points

From the results of Table 1, it can be clearly seen that the spray type sunscreen cosmetics of Examples 1 to 6 did not find the precipitation of bisethylhexyloxyphenol methoxyphenyl triazine, even at low temperature or high temperature. For the finished product with excellent stability, it has no sticky feeling on the touch and is a finished product with excellent usability.

With respect to the results, in Comparative Examples 1 to 3 in which the different ester oils were blended instead of the component (B), the precipitation of bisethylhexyloxyphenol methoxyphenyltriazine was found, which was a problematic product with stability. Regarding triisooctanoic acid glyceride and cetearyl octanoate, it is inferior to the touch. In Comparative Example 4 in which the content of the component (B) was high, there was a feeling of stickiness and a poor touch. In Comparative Example 5 in which the component (C) was not blended, no crystal precipitation was observed, and Comparative Example 6 in which the content of the component (C) was high was inferior in the feeling of touch. When the content ratio of the component (A): the component (B) + (C) is exceeded, crystal precipitation is found, and the product is stable in stability.

From the above results, by combining the components of the present invention, it was revealed that a spray-type sunscreen cosmetic having excellent stability and no stickiness can be obtained.

Example 7: Spray type sunscreen

(Note 1) Fine particle titanium oxide MTY-110M3S (manufactured by TAYCA Co., Ltd.)

(Production method)

A: The component (8) is dispersed in an appropriate amount of the component (2) and the component (7).

B: Heating dissolved components (1) to (3).

C: The components (4) to (6) and B were mixed in A to uniformly disperse.

D: The components (9) to (12) are mixed, added to C and emulsified to obtain a stock solution.

E: After filling 6 g of the raw liquid obtained by D in a pressure-resistant container made of aluminum, the pressure regulating valve is fixed. The pressure-resistant container was filled with 24 g of LPG 0.15 in the pressure-resistant container to obtain a spray-type sunscreen cosmetic.

In Example 7, although the portion to which the spray adhered immediately after the ejection appeared to be whitened, it was then transparent, and the precipitation of bisethylhexyloxyphenol methoxyphenyltriazine was not observed, and the nozzle was not clogged. A spray-type sunscreen lotion with no sticky feeling.

Example 8: Spray type sunscreen

14. Pure water 26.32 (Note 2) IPSE (manufactured by Nippon Seika Co., Ltd.) (Note 3) FINEX-50S-LP2 (manufactured by Nippon Chemical Co., Ltd.)

(Production method)

A: The dissolved components (1) to (3) are heated.

B: The components (4) to (10) are mixed in A to be uniformly dispersed.

C: The components (11) to (14) were mixed, added to B, and emulsified.

D: After filling 9 g of the raw liquid obtained by C in a pressure vessel made of aluminum, the pressure regulating valve is fixed. 21 g of LPG 0.15 was filled in the pressure-resistant container by the pressure-resistant regulating valve to obtain a spray-type sunscreen cosmetic.

In Example 8, no precipitation of bisethylhexyloxyphenol methoxyphenyltriazine was observed, and it was a spray-type sunscreen cosmetic having no sticky feeling on the touch.

Example 9: Spray type sunscreen

(Note 4) UVINUL A PLUS (manufactured by BASF Corporation) (Note 5) SH200C FLUID 6CS (manufactured by Dow Corning Toray Co., Ltd.) (Note 6) Neosolue-EHS (manufactured by Nippon Seika Co., Ltd.)

(Production method)

A: The dissolved components (1) to (4) are heated.

B: The components (5) to (8) are mixed in A to be uniformly dispersed.

C: The components (9) to (10) are mixed, added to B, and emulsified.

D: After filling 9 g of the raw liquid obtained by C in a pressure vessel made of aluminum, the pressure regulating valve is fixed. 15 g of LPG 0.15 and 6 g of dimethyl ether were filled in the pressure-resistant container by the pressure-resistant regulating valve to obtain a spray-type sunscreen cosmetic.

In Example 9, no precipitation of bisethylhexyloxyphenol methoxyphenyltriazine was observed, and it was a spray-type sunscreen cosmetic having no sticky feeling on the touch.

Example 10: Spray type sunscreen

(Production method)

A: The dissolved components (1) to (4) are heated.

B: The components (5) to (8) are mixed in A to uniformly disperse (9).

C: The components (10) to (12) were mixed, added to B, and emulsified to obtain a stock solution.

D: After filling 9 g of the raw liquid obtained in C in a pressure-resistant container made of transparent glass and aluminum, the pressure-resistant regulating valve was fixed, and 21 g of LPG 0.15 was filled in the pressure-resistant container by the pressure-resistant regulating valve. Spray-type sunscreen lotion.

In Example 10, no precipitation of bisethylhexyloxyphenol methoxyphenyltriazine was observed, and it was a spray-type sunscreen cosmetic having no sticky feeling on the touch.

Claims (3)

A spray type sunscreen cosmetic characterized by comprising the following components (a) to (c): (a) bisethylhexyloxyphenol methoxyphenyl triazine, 1 to 3% by mass, (b) propylene glycol a diester formed with a fatty acid having 8 to 10 carbon atoms, 5 to 50% by mass, (c) ethylhexyl methoxycinnamate, a stock solution of an aqueous emulsion of 5 to 15% by mass of oil, and as a spray The liquefied gas spray of the agent, and the mass ratio of the component (a) to the components (b) and (c) in the above-mentioned oil-type emulsion is in the range of 1:10 to 1:20. The spray-type sunscreen cosmetic according to claim 1, wherein the water-based emulsion in the oil further contains the component (d) polyoxyxylene oil. The spray type sunscreen cosmetic according to claim 1 or 2, wherein the filling ratio of the water-type emulsion to the liquid gas in the oil in the spray-type sunscreen cosmetic is 15 to 40% by mass of the water-based emulsion in the oil and The liquefied gas is 60 to 85%.