Topical skin preparation in aerosol form

Abstract

To provide a topical skin preparation that exhibits an enhanced skin firmness effect and achieves excellent spraying conditions.SOLUTION: A topical skin preparation in aerosol form is provided, 100 mass% of the preparation comprises: (A) 0.01 to 1.5 mass% of sorbitan fatty acid ester; (B) 0.01 to 3 mass% of polyoxyethylene hydrogenated castor oil; (C) 1 to 20 mass% of polyhydric alcohol; (D) 0.001 to 0.5 mass% of ectoin; and (E) water. With respect to the total of (A) to (E) being 97 to 99 vol.%, 1 to 3 vol.% of a propellant (F) is included. The propellant (F) is nitrogen and / or carbon dioxide. It is preferable that the preparation comprises a ball. It is further preferable that the preparation comprises plant extract (G) by replacing part of the water (E).SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to an aerosol topical skin preparation, and particularly to an aerosol topical skin preparation that improves the firmness of the skin and has a good spraying state.

Background Art

[0002] Conventionally, products in the form of aerosols as topical skin preparations have been variously developed in view of ease of application and simplicity in use. Also, carbon dioxide (carbonic acid gas) is used as a propellant for aerosol products in view of the effect of increasing blood flow in the skin during application and consideration for the environment.

[0003] For example, Patent Document 1 discloses an aerosol cosmetic for the purpose of providing an aerosol cosmetic having uniform bubble texture, good foam retention, and excellent massage persistence, which contains (A) an anionic surfactant, (B) an anionic polymer, and (C) a cationic polymer having a cationic charge density of 5.0 meq / g or less, and the mass ratio (A) / ((B)+(C)) of component (A) to the total amount of components (B) and (C) is 6 or more, and (D) carbon dioxide gas. Also, Patent Document 2 discloses an aerosol cosmetic for the purpose of providing an aerosol cosmetic in which the volatilization of carbon dioxide gas from the foam ejected from the container is suppressed, the carbon dioxide gas concentration in the foam is high, and the skin after application is uniformly reddened and improved to bright skin, which contains (A) a water-soluble thickener, (G) water, and has a stock solution with a pH of 7.1 or more and 10 or less, and (C) carbon dioxide gas, and the pH of the cosmetic immediately after spraying is 6 or more and 7.0 or less.

[0004] Furthermore, Patent Document 3 discloses a foaming aerosol composition comprising a stock solution and a propellant containing carbon dioxide gas, with the aim of providing a foaming aerosol composition in which the ejected foam has good usability and does not sag immediately during application, while reducing stickiness and slipperiness on the application surface such as skin and hair after application. In this composition, the stock solution contains a cationic compound having a dimethylaminoethyl methacrylate cross-linked structure.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, Patent Document 1 relates to the uniformity of the ejected foam, good foam retention, and the persistence of massage. Patent Document 2 relates to suppressing the volatilization of carbon dioxide gas from the foam ejected from the container, having a high carbon dioxide gas concentration in the foam, uniformly reddening the skin after application, and improving bright skin. Cited Document 3 relates to a foam with good usability that does not sag immediately during application, while reducing stickiness and slipperiness on the application surface such as skin and hair after application. None of them have considered improving the firmness effect of the skin.

[0007] Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, provide an aerosol topical skin preparation with improved firmness effect of the skin and good ejection state.

Means for Solving the Problems

[0008] As a result of intensive studies to solve the above problems, the present inventors have found that the above object can be achieved by combining carbon dioxide (CO2, carbon dioxide gas) with a specific component, and have completed the present invention.

[0009] That is, the aerosol skin external preparation of the present invention (A) 0.01 to 0.5% by mass of sorbitan fatty acid ester, and (B) 0.01 to 3% by mass of polyoxyethylene hydrogenated castor oil, and (C) 1 to 20% by mass of polyhydric alcohol, and (D) 0.001 to 0.5% by mass of ectoin, and has (E) Water is added to make the total amount of (A) to (E) 100% by mass, It has 1 to 3% by volume of (F) propellant with respect to 97 to 99% by volume of the total amount of (A) to (E), It is characterized in that the (F) propellant is nitrogen and / or carbon dioxide.

[0010] Further, the aerosol skin external preparation of the present invention preferably has a ball, and it is preferable to replace a part of the (E) water with (G) plant extract and have the (G) plant extract.

Effects of the Invention

[0011] According to the present invention, it is possible to provide an aerosol skin external preparation with improved firmness of the skin and a good spraying state.

Modes for Carrying Out the Invention

[0012] Hereinafter, the aerosol skin external preparation of the present invention will be specifically described. The aerosol skin external preparation of the present invention (A) 0.01 to 0.5% by mass of sorbitan fatty acid ester, and (B) 0.01 to 3% by mass of polyoxyethylene hydrogenated castor oil, and (C) 1 to 20% by mass of polyhydric alcohol, and (D) Ectoin 0.001 to 0.5% by mass, and has, (E) Water is added to make the total amount of (A) to (E) 100% by mass, Based on 97 to 99% by volume of the total amount of (A) to (E), it has (F) a propellant of 1 to 3% by volume, The (F) propellant is nitrogen and / or carbon dioxide. By this, it is possible to provide an aerosol topical skin preparation with improved firming effect on the skin and good spraying state. Furthermore, it is possible to provide an aerosol topical skin preparation with improved tightening effect.

[0013] In the present invention, the (A) sorbitan fatty acid ester is an ester of sorbitan and a fatty acid, and is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal topical skin preparation. For example, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monooleate, sorbitan monostearate, sorbitan isostearate, sorbitan tristearate, sorbitan sesquistearate, sorbitan sesquiisostearate, sorbitan sesquioleate, sorbitan trioleate, etc. can be used, and among them, sorbitan sesquioleate is preferable.

[0014] Also, in the present invention, the (B) polyoxyethylene hydrogenated castor oil is obtained by etherifying hydrogenated castor oil with a polyoxyethylene compound, and is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal topical skin preparation. For example, POE(5) hydrogenated castor oil, POE(10) hydrogenated castor oil, POE(20) hydrogenated castor oil, POE(30) hydrogenated castor oil, POE(40) hydrogenated castor oil, POE(50) hydrogenated castor oil, POE(60) hydrogenated castor oil, POE(80) hydrogenated castor oil, POE(100) hydrogenated castor oil, etc. can be used, and among them, POE(30) hydrogenated castor oil, POE(40) hydrogenated castor oil, POE(50) hydrogenated castor oil, POE(60) hydrogenated castor oil are preferable.

[0015] Furthermore, in the present invention, examples of the polyhydric alcohol (C) include one or more selected from the group consisting of glycerin, 1,3-butylene glycol, propylene glycol, propane diol, 1,2-hexanediol, pentylene glycol, pentaerythritol, hexylene glycol, diglycerin, polyglycerin, diethylene glycol, polyethylene glycol, dipropylene glycol, polypropylene glycol, ethylene glycol-propylene glycol copolymer, and polymers thereof.

[0016] Furthermore, in the present invention, the ectoine (D) is a compound having a carboxy group and an amino group represented by C6H 10 N2O2, and is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal external preparation for skin.

[0017] In the present invention, the water (E) is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal external preparation for skin. For example, generally used purified water, pure water, ultrapure water, etc. can be used.

[0018] Furthermore, in the present invention, the nitrogen used as the propellant (F) is N2, nitrogen gas, and is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal external preparation for skin. By using nitrogen and / or carbon dioxide, in particular, an aerosol external preparation for skin with a good spraying state can be provided.

[0019] Furthermore, in the present invention, the carbon dioxide used as the propellant (F) is CO2, carbon dioxide gas, and is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal external preparation for skin. By using carbon dioxide as the propellant, since it can be blended immediately before using the carbon dioxide and the base components, the effect of carbon dioxide is further improved, which is preferable.

[0020] In addition, the aerosol external preparation for skin of the present invention (A) Sorbitan fatty acid ester: 0.01 to 1.5% by mass, and (B) Polyoxyethylene hydrogenated castor oil: 0.01 to 3% by mass, and (C) Polyhydric alcohol: 1 to 20% by mass, and (D) Ectoin: 0.01 to 0.5% by mass, and has Furthermore, (E) water is added to make the total amount of (A) to (E) 100% by mass, It is more preferable to have 1 to 3% by volume of the (F) propellant with respect to 97 to 99% by volume of the total amount of (A) to (E). Thereby, the firmness effect of the skin can be improved, and an aerosol topical preparation for skin with a good spraying state can be provided. Furthermore, an aerosol topical preparation for skin with an even more improved firming effect can be provided. Also, when having both nitrogen and carbon dioxide, the mass ratio of nitrogen to carbon dioxide is preferably 1:9 to 9:1.

[0021] Furthermore, the aerosol topical preparation for skin of the present invention preferably has a ball. Thereby, the components in the aerosol topical preparation for skin can be more dispersed and subdivided, and an aerosol topical preparation for skin with an even more improved firmness effect of the skin can be provided, and an aerosol topical preparation for skin with an even more improved firming effect can be provided. Such a ball is not particularly limited as long as the effects of the present invention can be obtained and it can be used in a normal topical preparation for skin. For example, a ball made of stainless steel can be used. Also, the size of the ball is not limited, and it can be used as long as it can be put into the aerosol topical preparation for skin and stirred.

[0022] Furthermore, in the aerosol topical preparation for skin of the present invention, it is preferable to replace a part of the (E) water with (G) plant extract and have the (G) plant extract. Thereby, the effects of the (G) plant extract can be more improved, and an aerosol topical preparation for skin with an even more improved firmness effect of the skin can be provided, and an aerosol topical preparation for skin with an even more improved firming effect can be provided.

[0023] Examples of the (G) plant extract include various extracted components such as chamomile extract, parsley extract, ivy extract, rice extract, rice bran extract, hop extract, magnolia bark extract, schizandra extract, gentian extract, marjoram extract, birch extract, peony extract, soapwort extract, loofah extract, capsicum extract, lemon extract, gentiana extract, perilla extract, aloe extract, rosemary extract, sage extract, thyme extract, eucalyptus extract, tea extract, seaweed extract, cucumber extract, clove extract, carrot extract, chestnut extract, witch hazel extract, mulberry extract, chingpi extract, pecan nut extract, grapefruit extract, lime extract, passion fruit extract, loquat extract, grape extract, rose fruit extract, clary extract, peppermint extract, etc.

[0024] In the present invention, the external preparation for skin is not particularly limited as long as it can be used on human skin or the like, and is mainly a cosmetic, but does not exclude the uses of quasi-drugs, pharmaceuticals, etc. Further, the cosmetics include basic cosmetics, makeup cosmetics, hair cosmetics, bath agents, etc.

[0025] Furthermore, in the present invention, other components, etc. can be appropriately added as long as the effects of the present invention are not impaired. Any components other than the above can be blended within qualitative and quantitative ranges, and components usually blended in external preparations for skin, particularly cosmetics, such as surfactants, oily components, humectants, antioxidants, fragrances, various vitamin agents, chelating agents, coloring agents, ultraviolet absorbers, medicinal components, inorganic salts, etc. can be blended.

[0026] Examples of compatible components include, as nonionic surfactants, for example, polyglyceryl monofatty acid, polyglyceryl polyfatty acid, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil derivative, polyoxyethylene sterol, polyoxyethylene hydrogenated sterol, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, sucrose fatty acid ester, and the like.

[0027] Examples of amphoteric surfactant components include, for example, imidazoline-based amphoteric surfactants such as 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy 2-sodium salt, and betaine-based surfactants such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine, sulfobetaine, and the like.

[0028] Examples of polymer components include, for example, xanthan gum, gellan gum, gum arabic, tragacanth gum, galactan, guar gum, carrageenan, pectin, agar, quince seed, dextran, pullulan, casein, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, gelatin methyl cellulose, sodium alginate, carboxyvinyl polymer, and the like.

[0029] Examples of moisturizing components include, for example, xylitol, sorbitol, maltitol, sodium chondroitin sulfate, elastin, glucosamine, hyaluronic acid, cyclodextrin, collagen, bile salts, and the like.

[0030] Examples of the active ingredient include vitamins such as vitamin A, vitamin B, vitamin C, vitamin D, and vitamin E, and their derivatives, various salts such as urea, creatinine, CoQ10, astaxanthin, polyphenol, ceramide, and the like.

[0031] Examples of the ultraviolet absorber include benzophenone derivatives such as 2-hydroxy-4-methoxybenzophenone, para-aminobenzoic acid derivatives such as para-aminobenzoic acid, methoxycinnamic acid derivatives such as octyl paramethoxycinnamate, salicylic acid derivatives such as octyl salicylate and phenyl salicylate, urocanic acid, ethyl urocanate, 4-tert-butyl-4'methoxydibenzoylmethane, benzotriazole, and the like.

[0032] In the present invention, the skin external preparation can be produced by a usual method for producing cosmetics. After being produced by heating an oil phase component and an aqueous phase component or using a D-phase emulsification method, etc., it can be produced by filling a propellant.

[0033] Furthermore, the method of using the skin external preparation of the present invention is not particularly limited as long as it can be applied to the skin or the like. The external preparation may be directly applied to the skin by hand, or may be directly applied from a container or the like.

[0034] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. The numbers in the table regarding the following formulations indicate mass% or volume%.

Examples

[0035] (Examples 1 to 3 and Comparative Examples 1 to 2) According to the formulations (mass%) described in Table 1 below, a stock solution composition was prepared, and the propellant in the ratio (mass%) described in Table 1 below was filled into the stock solution composition at the ratio (volume%) described in Table 1 below to produce aerosol skin external preparations of Examples 1 to 3 and Comparative Examples 1 to 2. Regarding the obtained aerosol skin external preparations of Examples 1 to 3 and Comparative Examples 1 to 2, the following "confirmation of spraying state" was performed, and the results are also shown in Table 1.

[0036] (Confirmation of spraying state) For the aerosol topical skin preparations of Examples 1 to 3 and Comparative Examples 1 and 2, the spraying state was confirmed and evaluated according to the following evaluation criteria. <Evaluation criteria> ○: The mist is uniform, fine, and spreads over a wide range △: The mist is slightly coarse but spreads over a wide range ×: The mist is non-uniform, coarse, and has a small spread

[0037] [Table 1]

[0038] From the results in Table 1 above, the spraying states of the aerosol topical skin preparations of Examples 1 to 3 were good. On the other hand, the spraying states of the aerosol topical skin preparations of Comparative Examples 1 and 2 were poor.

[0039] (Examples 4 to 12 and Comparative Example 3) According to the formulations (mass %) described in Tables 2 and 3 below, stock solutions were prepared, and 2% by volume of a filler (mass ratio of nitrogen to carbon dioxide is 75% by mass: 25% by mass) was filled into 98% by volume of such stock solutions to produce the aerosol topical skin preparations of Examples 4 to 12 and Comparative Example 3. For the obtained aerosol topical skin preparations of Examples 4 to 12 and Comparative Example 3, the following "Skin elasticity test" was conducted, and the results were also shown in Tables 2 and 3.

[0040] (Skin elasticity test) Five professional panelists (all female) used the aerosol topical skin preparations of Examples 4 to 12 and Comparative Example 3 continuously for one week, and a sensory evaluation was conducted on the skin elasticity after continuous use and evaluated according to the following evaluation criteria. <Evaluation criteria> A: Extremely good (The number of people who answered that the skin elasticity has increased compared to before continuous use is 5) B: Quite good (The number of people who answered that the skin elasticity has increased compared to before continuous use is 4) C: Good (The number of people who answered that the skin elasticity has increased compared to before continuous use is 3) D: Slightly bad (2 people answered that the elasticity of the skin had improved compared to before use) E: Bad (Less than 1 person answered that the elasticity of the skin had improved compared to before use)

[0041]

Table 2

[0042]

Table 3

[0043] From the results of Table 2 and Table 3 above, the skin elasticity of the aerosol skin external preparation of Examples 4 to 12 was good. On the other hand, the aerosol skin external preparation of Comparative Example 3 had poor skin elasticity. From this, it was found that the skin elasticity was improved by using the aerosol skin external preparation of the present invention.

Claims

1. (A) 0.01 to 0.5% by mass of sorbitan fatty acid ester, and (B) 0.01 to 3% by mass of polyoxyethylene hydrogenated castor oil, and (C) 1 to 20% by mass of polyhydric alcohol, and (D) 0.001 to 0.5% by mass of ectoine, and having (E) adding water to make the total amount of (A) to (E) 100% by mass, having 1 to 3% by volume of (F) propellant with respect to 97 to 99% by volume of the total amount of (A) to (E), an aerosol topical skin preparation characterized in that the (F) propellant is nitrogen and / or carbon dioxide.

2. The aerosol topical skin preparation according to Claim 1, having a ball.

3. The aerosol topical skin preparation according to Claim 1 or Claim 2, wherein a part of the (E) water is replaced with (G) plant extract and having the (G) plant extract.

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