JP2017095394A - Aerosol Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol cosmetic having excellent low irritation.SOLUTION: There is provided an aerosol cosmetic obtained by filling a stock solution and a propellant in an aerosol container, wherein the propellant contains a liquid petroleum gas, the liquid petroleum gas contains isobutane, the content of the isobutane in 100 vol.% of the liquid petroleum gas is 80 vol.% or more and the stock solution contains polyethylene glycol and a polyglycerol fatty acid ester.SELECTED DRAWING: None

Description

  The present invention relates to an aerosol cosmetic.

  Conventionally, various aerosol products are distributed and used in various parts such as the face, hands, body, scalp and hair.

  In these aerosol products, the stock solution and the propellant are filled in an aerosol container. For example, in Patent Document 1, 1) the content of glycerin and / or diglycerin is 45 to 60% by mass, and 2) A post-form dosage form of a warm cosmetic is disclosed, wherein the water content is 25% by mass or less, and 3) the foaming gas content is 1 to 2% by mass. ing.

JP 2005-350378 A

  Patent Document 1 describes that by using isobutane as a main gas for foaming, primary stimulation derived from the gas is less likely to occur. However, for use on delicate parts such as the face, further hypoallergenic cosmetics are required.

  The subject of this invention is providing the aerosol cosmetics excellent in low irritation.

The present invention
An aerosol cosmetic in which a stock solution and a propellant are filled in an aerosol container,
The propellant contains liquefied petroleum gas, the liquefied petroleum gas contains isobutane, and the content of the isobutane in 100% by volume of the liquefied petroleum gas is 80% by volume or more;
The aerosol solution contains polyethylene glycol and polyglycerin fatty acid ester.

  ADVANTAGE OF THE INVENTION According to this invention, the aerosol cosmetics excellent in low irritation can be provided.

  The aerosol cosmetic composition of the present invention is an aerosol container filled with a stock solution and a propellant. The aerosol cosmetic composition of the present invention is a combination of the three combinations of polyethylene glycol and polyglycerin fatty acid ester contained in the stock solution and isobutane contained in the propellant, which significantly reduces irritation caused by the cosmetic composition. Hereinafter, each component of the aerosol cosmetic of the present invention will be described.

The stock solution contains polyethylene glycol and polyglycerin fatty acid ester as essential components.
The stock solution may further contain components other than the essential components (other components). Only one type of essential component or other components may be used, or two or more types may be used.

  Although the number average molecular weight of the said polyethylene glycol is not specifically limited, From a viewpoint of reducing the irritation | stimulation to skin, Preferably it is 50-10000, More preferably, it is 100-5000. Only 1 type may be used for the said polyethylene glycol, and 2 or more types from which a number average molecular weight differs may be used.

  The content of the polyethylene glycol in 100% by mass of the stock solution is preferably 0.1 to 10.0% by mass, more preferably 0.5 to 8.0% by mass, from the viewpoint of reducing irritation to the skin. is there. The content is the total content of all polyethylene glycols contained in the stock solution.

  Examples of the polyglyceryl fatty acid ester include diglyceryl monostearate, diglyceryl monooleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl monooleate, hexaglyceryl monolaurate, hexaglyceryl monomyristate Polyglycerin fatty acid monoesters such as hexaglyceryl monostearate, hexaglyceryl monooleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monolinoleate; Polyglycerin fatty acid diesters such as diglyceryl acid, decaglyceryl distearate, decaglyceryl diisostearate; Polyglyceryl fatty acid triesters such as tetraglyceryl acid, hexaglyceryl tristearate, decaglyceryl tristearate, decaglyceryl trioleate; tetraglyceryl pentastearate, tetraglyceryl pentaoleate, hexaglyceryl pentastearate, pentaoleic acid And polyglycerin fatty acid pentaesters such as hexaglyceryl. As for the said polyglyceryl fatty acid ester, only 1 type may be used and 2 or more types may be used. Among these, from the viewpoint of reducing irritation to the skin, polyglycerol fatty acid monoester is preferable.

  The average degree of polymerization of polyglycerol in the polyglycerol fatty acid ester is preferably 2 to 10, more preferably 6 to 10, from the viewpoint of reducing irritation to the skin.

  The fatty acid in the polyglycerin fatty acid ester is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, more preferably 12 to 12 carbon atoms, from the viewpoint of reducing irritation to the skin. 18 fatty acids.

  The content of the polyglycerol fatty acid ester in 100% by mass of the stock solution is preferably 0.1 to 10.0% by mass, more preferably 0.5 to 5.0% by mass, from the viewpoint of reducing irritation to the skin. It is. The content is the total content of all polyglycerin fatty acid esters contained in the stock solution.

  When the aerosol cosmetic composition of the present invention is used as a foam-type aerosol cosmetic composition, the stock solution further contains a higher fatty acid and / or salt thereof, N-acyl amino acid salt, xanthan gum, polyethylene glycol fatty acid ester, polyvalent other than polyethylene glycol. It is preferable to contain components such as alcohol, monoalkyl phosphate ester salt, polyoxyethylene hydrogenated castor oil, and water.

  The higher fatty acid and / or a salt thereof (hereinafter also referred to as a higher fatty acid (salt)) is either one or both of a higher fatty acid and a higher fatty acid salt. It is effective for improvement. Only 1 type may be used for the said higher fatty acid (salt), and 2 or more types may be used for it.

  Examples of the higher fatty acid include higher fatty acids having 12 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and behenic acid; vegetable oils such as olive oil, coconut oil, palm oil, and cottonseed oil Animal oils such as fish oil and beef tallow. Among these, from the viewpoint of foamability and foaminess, higher fatty acid salts having 12 to 22 carbon atoms are preferable, and lauric acid, myristic acid, palmitic acid, and stearic acid are more preferable.

  Examples of the salt in the higher fatty acid salt include alkali metal salts such as sodium salt and potassium salt; alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

  The higher fatty acid salt may be mixed with a higher fatty acid salt prepared in advance, or the higher fatty acid and the base may form a salt in the stock solution.

  The content of higher fatty acid (salt) in 100% by mass of the stock solution is preferably 0.01 to 20.0% by mass, more preferably 0.05 to 2.0% by mass as the amount of higher fatty acid. The content is the total content of all higher fatty acids (salts) contained in the stock solution (content when converted as higher fatty acids).

  The said N-acyl amino acid salt improves the foamability of foam-form aerosol cosmetics. The N-acyl amino acid salt may be used alone or in combination of two or more.

  Examples of the acyl group in the N-acyl amino acid salt include linear or branched aliphatic acyl groups having 8 to 24 carbon atoms. Specifically, for example, octanoyl group, decanoyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, isostearoyl group, oleoyl group, linoleoyl group, behenyl group, acyl group derived from coconut oil fatty acid (hereinafter, coconut oil) Oil fatty acid acyl group), an acyl group derived from palm oil fatty acid (hereinafter referred to as palm fatty acid acyl group), and the like.

  Examples of amino acids in the N-acyl amino acid salt include glycine, dimethylglycine, trimethylglycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophan, cystine, cysteine, methionine, proline, hydroxyproline, Examples include aspartic acid, glutamic acid, asparagine, glutamine, arginine, histidine, lysine, and sarcosine. Among these, glycine and glutamic acid are preferable and glutamic acid is more preferable from the viewpoint of good foamability.

  Examples of the salt in the N-acyl amino acid salt include alkali metal salts such as sodium salt and potassium salt; alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

  Among them, the N-acyl amino acid salt is preferably N-acyl glutamate, such as sodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, sodium stearoyl glutamate, Examples include coconut oil fatty acid acyl glutamate sodium (cocoyl glutamate sodium), coconut oil fatty acid acyl glutamate potassium (cocoyl glutamate potassium), coconut oil fatty acyl glutamate triethanolamine (cocoyl glutamate triethanolamine) and the like.

  The content of the N-acyl amino acid salt in 100% by mass of the stock solution is preferably 0.1 to 20.0% by mass, more preferably 0.5 to 10.0% by mass from the viewpoint of foamability. . The content is the total content of all N-acyl amino acid salts contained in the stock solution.

  The xanthan gum is an effective component for improving the foaminess of foam aerosol cosmetics. Furthermore, it is effective in forming dense bubbles with a high bubble density.

  The content of xanthan gum in 100% by mass of the stock solution is preferably 0.01 to 0.4% by mass, more preferably 0.05 to 0.3% by mass, from the viewpoints of foam density and foaminess.

  The above-mentioned polyethylene glycol fatty acid ester is effective in improving the foaminess of foam aerosol cosmetics. Furthermore, it is effective in forming dense bubbles with a high bubble density. Moreover, precipitation of crystals, such as a salt, is suppressed and the effect of reducing a possibility that aerosol will be clogged is also exhibited. The polyethylene glycol fatty acid ester may be used alone or in combination of two or more.

  Examples of the polyethylene glycol fatty acid ester include monofatty acid polyethylene glycol such as polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol monooleate; polyethylene glycol dilaurate, polyethylene glycol distearate, diisostearate Examples include difatty acid polyethylene glycols such as polyethylene glycol acid and polyethylene glycol dioleate. Among these, monofatty acid polyethylene glycol is preferred from the viewpoint of enhancing the foam density, foaminess, and crystal precipitation suppression effect.

  The fatty acid in the polyethylene glycol fatty acid ester is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, and still more preferably a fatty acid having 12 to 18 carbon atoms.

  Moreover, the average addition mole number of ethylene oxide in the said polyethylene glycol fatty acid ester becomes like this. Preferably it is 100-300, More preferably, it is 120-280.

  The content of the polyethylene glycol fatty acid ester in 100% by mass of the stock solution is preferably 0.01 to 3.0% by mass, more preferably 0.1 to 2.0% by mass from the viewpoint of foam density and foaminess. is there. The above content is the total content of all polyethylene glycol fatty acid esters contained in the stock solution.

  Polyhydric alcohols other than the above polyethylene glycol are effective in the foamy foam cosmetic foam. Only one type of polyhydric alcohol other than the polyethylene glycol may be used, or two or more types may be used.

  Examples of polyhydric alcohols other than polyethylene glycol include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, isoprene glycol, dipropylene glycol, 1,3-butylene glycol (1,3-butanediol), 1,2- Butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, glycerin (1,2,3-propanetriol), diglycerin, polyglycerin, sorbitol , Maltitol, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside and the like.

  The content of the polyhydric alcohol in 100% by mass of the stock solution is preferably 0.5 to 40.0% by mass, more preferably 10.0 to 30.0% by mass from the viewpoint of foam density and foaminess. . The content is the total content of all the polyhydric alcohols contained in the stock solution, and includes the polyethylene glycol.

  The monoalkyl phosphate ester salt is effective in increasing the foam smoothness of foamed aerosol cosmetics. As for the said monoalkyl phosphate ester salt, only 1 type may be used and 2 or more types may be used.

  From the viewpoint of improving foam quality, the number of carbon atoms of the alkyl group in the monoalkyl phosphate ester salt is preferably 8 to 24, more preferably 10 to 20, and still more preferably 12 to 18.

  Examples of the salt in the monoalkyl phosphate ester salt include alkali metal salts such as sodium salt and potassium salt; alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

  Specific examples of monoalkyl phosphate salts include sodium lauryl phosphate, disodium lauryl phosphate, potassium lauryl phosphate, potassium cetyl phosphate, diethanolamine cetyl phosphate, and the like.

  The content of the monoalkyl phosphate ester salt in 100% by mass of the stock solution is preferably 0.01 to 10.0% by mass, more preferably 0.05 to 3.0% by mass, from the viewpoint of increasing the smoothness of the foam. %. The above content is the total content of all monoalkyl phosphate esters contained in the stock solution.

  Polyoxyethylene hydrogenated castor oil is effective in increasing the fineness of foam of foam-type aerosol cosmetics. As for the said polyoxyethylene hydrogenated castor oil, only 1 type may be used and 2 or more types may be used.

  The average number of moles of ethylene oxide added in the polyoxyethylene hydrogenated castor oil is preferably 10 to 100, more preferably 30 to 60, from the viewpoint of forming fine bubbles.

  The content of polyoxyethylene hydrogenated castor oil in 100% by mass of the stock solution is preferably 0.05 to 5.0% by mass, more preferably 0.1 to 1.0%, from the viewpoint of forming fine bubbles. % By mass. The above content is the total content of all polyoxyethylene hydrogenated castor oils contained in the stock solution.

  The water is not particularly limited, but purified water is preferable. The content of water in 100% by mass of the stock solution is preferably 45 to 98% by mass, more preferably 50 to 95% by mass, from the viewpoint of forming good bubbles.

  In addition to the above components, the stock solution includes, for example, anionic surfactants, cationic surfactants, nonionic surfactants; fragrances; ethanol; cyclopentasiloxane, hydrogen dimethicone, caprylyl methicone, dimethicone, etc. Silicone oils; fatty acid ester oils such as isopropyl myristate, ethylhexyl palmitate and cetyl 2-ethylhexanoate; preservatives such as phenoxyethanol, octoxyglycerin and methylparaben; cooling agents such as menthol, menthyl glyceryl ether, camphor and peppermint oil Anti-inflammatory agents such as dipotassium glycyrrhizinate and stearyl glycyrrhizinate; plant extract extracts such as peonies, buttonpi, loquat and aloe; carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, hydroxy Thickening polymers such as ethyl cellulose; tocopherol, antioxidant such as dibutylhydroxytoluene; arbutin, whitening agents such as ascorbic acid; silica, talc, may include a powder such as nylon powder.

  The stock solution can be prepared by a conventional method. For example, the above-mentioned constituent components are mixed and a known method, specifically, a method of stirring with a homomixer or the like can be mentioned.

  The aerosol cosmetic propellant of the present invention contains liquefied petroleum gas (LPG) containing isobutane gas.

  The content of isobutane in 100% by volume of liquefied petroleum gas is 80% by volume or more, and preferably 90% by volume or more.

  Examples of liquefied petroleum gas other than isobutane include propane, butane, and isopentane.

  The content of the liquefied petroleum gas in the total amount of the stock solution and the propellant of 100% by mass is preferably 1.0 to 10.0% by mass, more preferably 1.0 to 8.0% by mass.

  In the propellant, as the amount of isobutane in the liquefied petroleum gas increases, the internal pressure of the aerosol container hardly increases. Therefore, in the present invention, it is preferable to further contain carbon dioxide gas from the viewpoint of increasing the internal pressure and increasing the momentum of discharge.

  The content of carbon dioxide gas in the total amount of the stock solution and the propellant of 100% by mass is preferably 0.1 to 2.0% by mass, more preferably 0.1 to 1.5% by mass.

  Although it does not specifically limit as another propellant, For example, gas (especially compressed gas), such as air, nitrogen, nitrous oxide; dimethyl ether (DME), a fluorocarbon, etc. are mentioned.

  The content of the propellant in the total amount of the stock solution and the propellant of 100% by mass is preferably 1.1 to 12.0% by mass, more preferably 1.1 to 9.5% by mass.

  The aerosol cosmetic composition of the present invention can be produced by filling an aerosol container with a stock solution and a propellant by a conventional method.

  Examples of the discharge form of the aerosol cosmetic material include a spray form and a foam form. From the viewpoint that the hypoallergenicity can be further improved even in the form of a foam, the aerosol cosmetic composition of the present invention is a foam form. Aerosol cosmetics are preferred.

  The aerosol cosmetic composition of the present invention can be used for various parts such as the face, hands, body, scalp and hair, but can be suitably used as a skin cosmetic composition because of its extremely low irritation. It can also be used on delicate parts such as the face.

  Hereinafter, the present invention will be described in more detail based on examples and the like, but the present invention is not limited only to such examples.

Examples 1-5 and Comparative Examples 1-3
After the stock solution having the composition shown in Table 1 is filled into an aerosol container (φ35 mm × 105 mm, aluminum can, full container amount: 91 ml), the aerosol valve is clinched into the container, and then sprayed with the composition described in Table 1 The agent was filled from the stem, a suitable spout was attached, and a foam aerosol cosmetic was obtained. The total amount of the stock solution and the propellant filled in the aerosol container is 50 g.

  Details of each raw material in Examples and Comparative Examples are as follows. In addition, the amount described in Table 1 is not the amount of merchandise but the amount of each component (amount of active ingredient).

Polyethylene glycol: PEG-1500 (manufactured by Sanyo Chemical Industries, Ltd .: number average molecular weight 1500)
Decaglyceryl monomyristate: Glysurf 10MM (Aoki Yushi Kogyo Co., Ltd.)
Myristic acid: EDENOR C14-99 (manufactured by Emery Oleochemicals)
Sodium cocoyl glutamate: Amino Surfact ACDS-L (Asahi Kasei Chemicals)
Xanthan gum: Echo gum T (DSP Gokyo Food & Chemical Co., Ltd.)
Polyethylene glycol monostearate: Emanon 3199VB (manufactured by Kao Corporation: 150 added moles of ethylene oxide)
Glycerin: Concentrated glycerin for makeup (manufactured by Sakamoto Pharmaceutical Co., Ltd.)
Sodium lauryl phosphate: NIKKOL SLP-N (manufactured by Nikko Chemicals)
Polyoxyethylene hydrogenated castor oil: EMALEX HC-50 (manufactured by Nippon Emulsion Co., Ltd .: 50 moles of added ethylene oxide)

  About the foam-form aerosol cosmetics prepared in Examples and Comparative Examples, “skin irritation” was evaluated by the following method. The results are shown in Table 1.

[Test example: Evaluation of skin irritation]
After having the face washed away with hot water of 40 ° C. by 10 evaluation panels, the face was actually washed with the foam aerosol cosmetics of each Example and each Comparative Example, and “ The sensory evaluation was performed for the presence or absence of “skin irritation” such as “burning sensation”, “tingling sensation”, “burning sensation”, and scored according to the evaluation points divided into 5 levels from 1 point to 5 points below.
In addition, evaluation made the result of the evaluation score (score) obtained with the largest number of people the result of each sample.

[Evaluation score (score) criteria]
5 points (evaluation point 5): no skin irritation (skin irritation is low)
4 points (evaluation point 4): 3 points for slightly feeling skin irritation (evaluation point 3): 2 points for feeling skin irritation (evaluation point 2): 1 point for strongly feeling skin irritation (evaluation point 1): Skin irritation Feels very strong (high skin irritation)

  From the above results, the foam aerosol cosmetics of Examples 1 to 5 in which the stock solution contains both polyethylene glycol and polyglycerin fatty acid ester and the propellant contains isobutane are in contrast to those of Comparative Examples 1 to 3. It can be seen that the stimulus is small and has a good feeling of use.

  The aerosol cosmetic composition of the present invention can be used as a cleaning agent for the face, hands, body, scalp and hair.

Claims (4)

An aerosol cosmetic in which a stock solution and a propellant are filled in an aerosol container,
The propellant contains liquefied petroleum gas, the liquefied petroleum gas contains isobutane, and the content of the isobutane in 100% by volume of the liquefied petroleum gas is 80% by volume or more;
An aerosol cosmetic, wherein the stock solution contains polyethylene glycol and polyglycerin fatty acid ester.   The aerosol cosmetic according to claim 1, wherein the propellant further contains carbon dioxide gas.   The aerosol cosmetic composition according to claim 1 or 2, which is a foam aerosol cosmetic composition.   The aerosol cosmetic according to any one of claims 1 to 3, which is a skin cosmetic.