JP2023044437A - emulsified cosmetic composition - Google Patents

Abstract

To provide an emulsified cosmetic composition that is excellent in bactericidal action, non-stickiness, moisture retention, and low alcohol odor, and is less prone to spillage.SOLUTION: An emulsified cosmetic composition contains component (A): a lower alcohol, component (B): a bivalent alcohol and/or trivalent alcohol, component (C): a thickener, component (D): a nonionic surfactant including polyglyceryl fatty acid ester, with an HLB value of 8.0-15.0, component (E): a bactericidal component, and component (F): disodium edetate, with the content of component (A) being 8.0-25.0 mass% and the content of component (B) being 8.0-18.0 mass%.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to an emulsified cosmetic composition.

It is generally known that lower alcohols with 1 to 3 carbon atoms such as ethanol and isopropyl alcohol have a bactericidal action against bacteria and viruses, and liquid disinfectants containing lower alcohols are widely used. However, since such a liquid sterilant is liquid, there is a problem that it runs down and drips when applied to a sterilized site such as the palm of the hand. In addition, the spray-type sterilant has a problem such as diffusing in the air. Furthermore, using a disinfectant containing a high concentration of lower alcohol may cause rough hands.

Patent Documents 1 and 2 disclose a disinfecting composition containing 20% by mass or more of a lower alcohol having 1 to 3 carbon atoms and a bactericidal agent, and having bactericidal action and moisturizing properties.

JP 2017-132711 A JP 2018-158890 A

The antiseptic compositions disclosed in Patent Documents 1 and 2 are more comfortable to use and suppress dripping when compared to liquid disinfectants containing lower alcohols at a high concentration. However, compared with conventional emulsified cosmetic compositions such as hand creams, the stickiness is strong and the feeling of moisturizing is insufficient, and there is a problem with the feeling of use. In addition, although the disinfectant composition suppresses dripping, it slips down while maintaining the gel-like form, and there is room for improvement in suppressing dripping. Furthermore, when a large amount of lower alcohol is blended, there is also a problem that the alcohol smell is strong.

Accordingly, an object of the present invention is to provide an emulsified cosmetic composition which is excellent in bactericidal activity, non-stickiness, moisturizing feeling and low-alcohol odor, and in which dripping is suppressed.

The present inventors have made intensive studies to achieve the above objects, and found that component (A): lower alcohol, component (B): dihydric alcohol and / or trihydric alcohol, component (C): thickener, component ( D): a nonionic surfactant containing a polyglycerol fatty acid ester and having an HLB value of 8.0 to 15.0, component (E): a bactericidal component, and component (F): a component containing sodium edetate According to the emulsified cosmetic composition in which the content ratios of (A) and component (B) are within specific ranges, it is excellent in bactericidal action, non-stickiness, moisturizing feeling, and low-alcohol odor, and suppresses dripping. I found out. The present invention has been completed based on these findings.

That is, the present invention contains the following component (A), the following component (B), the following component (C), the following component (D), the following component (E), and the following component (F),
Provided is an emulsified cosmetic composition in which the content of component (A) is 8.0 to 25.0% by mass and the content of component (B) is 8.0 to 18.0% by mass.
Component (A): Lower alcohol Component (B): Dihydric alcohol and/or trihydric alcohol Component (C): Thickener Component (D): Contains polyglycerol fatty acid ester and has an HLB value of 8.0 to 15.0. 0 nonionic surfactant component (E): bactericidal component component (F): sodium edetate

The content of polyglycerin fatty acid ester is preferably 2.0 to 8.0% by mass.

The emulsified cosmetic composition of the present invention is excellent in bactericidal action, non-stickiness, moisturizing feeling, and low-alcohol odor, and hardly causes dripping when applied to the sterilized site. Therefore, the emulsified cosmetic composition of the present invention has excellent stability and excellent feeling during use.

The emulsified cosmetic composition of the present invention contains at least a lower alcohol, a dihydric alcohol and/or a trihydric alcohol, a thickener, a nonionic surfactant, a bactericidal component, and sodium edetate. The nonionic surfactant contains polyglycerin fatty acid ester and has an HLB value of 8.0 to 15.0. In this specification, the lower alcohol is "component (A)", the dihydric alcohol and / or trihydric alcohol is "component (B)", the thickener is "component (C)", and the polyglycerol fatty acid ester is The nonionic surfactant having an HLB value of 8.0 to 15.0 is called "component (D)", the bactericidal component is called "component (E)", and sodium edetate is called "component (F)". Sometimes.

That is, the emulsified cosmetic composition of the present invention contains at least component (A), component (B), component (C), component (D), component (E) and component (F). The emulsified cosmetic composition of the present invention may contain components other than the above components (A) to (F). In addition, each component contained in the emulsified cosmetic composition of the present invention, for example, each component such as components (A) to (F) and other components may be used alone or in combination of two or more. may be used.

[Component (A)]
Component (A) is a lower alcohol. Component (A) is a monohydric lower alcohol and exerts a bactericidal action in the emulsified cosmetic composition. Only 1 type may be used for a component (A), and 2 or more types may be used for it.

Component (A) includes monohydric alcohols having 1 to 4 carbon atoms, such as methanol, ethanol, 1-propyl alcohol, 2-propyl alcohol and 1-butanol.

The content of component (A) in the emulsified cosmetic composition of the present invention is 8.0 to 25.0% by mass, preferably 11.0% by mass, based on 100% by mass of the emulsified cosmetic composition of the present invention. 0 to 22.0% by mass, more preferably 12.0 to 18.0% by mass. When the content ratio is 8.0% by mass or more, the bactericidal action is excellent. When the content is 25.0% by mass or less, the alcohol smell is suppressed, the moisturizing feeling is excellent, and the stability of the emulsified cosmetic composition is excellent. The content of component (A) is the total content of all components (A) in the emulsified cosmetic composition of the present invention.

[Component (B)]
Component (B) is a dihydric alcohol and/or a trihydric alcohol. The emulsified cosmetic composition of the present invention exhibits excellent bactericidal action by containing the component (B) together with the component (A). Only one kind of component (B) may be used, or two or more kinds thereof may be used.

Examples of the dihydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,2-pentanediol, 1 ,2-hexanediol, 1,2-octanediol, 1,2-decanediol, 1,2-dodecanediol, and (poly)alkylene glycols such as polyethylene glycol and polypropylene glycol. Among them, dihydric alcohols having 2 to 12 carbon atoms are preferred, and 1,3-butylene glycol and dipropylene glycol are more preferred. Moreover, glycerin is mentioned as said trihydric alcohol.

As the component (B), dihydric alcohol alone, trihydric alcohol alone, or a combination of dihydric alcohol and trihydric alcohol can be blended. When a dihydric alcohol and a trihydric alcohol are blended together, the emulsified cosmetic composition of the present invention exhibits a more excellent bactericidal action.

The content of component (B) in the emulsified cosmetic composition of the present invention is 8.0 to 18.0% by mass, preferably 9.0% by mass, based on 100% by mass of the emulsified cosmetic composition of the present invention. 0 to 17.0% by mass, more preferably 10.0 to 16.0% by mass. When the content ratio is 8.0% by mass or more, excellent bactericidal action and moisturizing feeling are obtained. When the content is 18.0% by mass or less, non-stickiness is excellent. The content of component (B) is the total content of all components (B) in the emulsified cosmetic composition of the present invention.

The content of the dihydric alcohol in the emulsified cosmetic composition of the present invention is not particularly limited, but should be 2.0 to 18.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, more preferably 5.0 to 17.0% by mass, still more preferably 10.0 to 15.0% by mass. When the content is 2.0% by mass or more, the bactericidal action and moisturizing effect are even more excellent. When the content is 18.0% by mass or less, non-stickiness is even more excellent. The dihydric alcohol content is the total content of all dihydric alcohols in the emulsified cosmetic composition of the present invention.

The content of the trihydric alcohol in the emulsified cosmetic composition of the present invention is not particularly limited, but should be 0.5 to 15.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, more preferably 1.0 to 13.0% by mass, still more preferably 2.0 to 10.0% by mass. When the content is 0.5% by mass or more, the bactericidal action and moisturizing effect are even more excellent. When the content is 15.0% by mass or less, the non-stickiness is further excellent, and the stability of the emulsified cosmetic composition is also excellent. The trihydric alcohol content is the total content of all trihydric alcohols in the emulsified cosmetic composition of the present invention.

[Component (C)]
Component (C) is a thickener. By blending the component (C), dripping can be suppressed when applied to the sterilized site, and the stability of the emulsified cosmetic composition is excellent. Only one kind of component (C) may be used, or two or more kinds thereof may be used.

Component (C) includes, for example, water-soluble thickeners such as natural polymers, semi-synthetic polymers, and synthetic polymers having water solubility. Examples of water-soluble natural polymers include gum arabic, tragacanth gum, xanthan gum, guar gum, locust bean gum, karaya gum, irismos, quince seed, gelatin, shellac, rosin, casein, carrageenan, and pectin. Examples of the water-soluble semisynthetic polymer include carboxymethylcellulose, sodium carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, methylcellulose, ethylcellulose, sodium alginate, ester gum, nitrocellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, and crystalline cellulose. Cellulosic thickeners such as. Examples of the water-soluble synthetic polymer include polyvinyl alcohol; carboxyvinyl polymer; polyvinyl methyl cellulose; polyamide resin; polyethylene glycol; sodium polyacrylate; , (acrylates/steareth-20 methacrylate) copolymer, (acrylates/steareth-20 methacrylate) crosspolymer, (acrylates/beheneth-25 methacrylate) copolymer and (acrylates/vinyl neodecanoate) crosspolymer agents. Among them, water-soluble semi-synthetic polymers and water-soluble synthetic polymers are preferred, and cellulose-based thickeners and carboxyvinyl polymers are more preferred.

When a carboxyvinyl polymer or an acrylic acid/methacrylic acid ester copolymer is used as a thickener, it is usually used after being neutralized with a basic substance. Examples of basic substances include alkanolamines such as triethanolamine and monoethanolamine; inorganic bases such as ammonia, sodium hydroxide and potassium hydroxide; basic amino acids such as arginine and the like. The amount of the basic substance to be added is an amount sufficient to neutralize the carboxyvinyl polymer and the acrylic acid/methacrylic acid ester copolymer, and may be appropriately blended according to the type and amount of use of these components. .

The content of component (C) in the emulsified cosmetic composition of the present invention is not particularly limited, but is 0.05 to 0.8% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 0.1 to 0.5% by mass. When the content is 0.05% by mass or more, dripping when applied to a sterilized site can be further suppressed, and the stability of the emulsified cosmetic composition is more excellent. When the content is 0.8% by mass or less, the non-stickiness is excellent. The content of component (C) is the total content of all components (C) in the emulsified cosmetic composition of the present invention.

[Component (D)]
Component (D) is a nonionic surfactant containing polyglycerin fatty acid ester and having an HLB value of 8.0 to 15.0. By using such a component (D), even when the component (A) and the component (B) are contained in the above-mentioned content ratio, it is possible to suppress dripping when applied to the sterilized site, Moreover, the stability of the emulsified cosmetic composition is excellent. Component (D) may contain only one type of nonionic surfactant, or may contain two or more types.

The HLB value of component (D) is 8.0-15.0, preferably 9.0-13.0. When the HLB value is within the above range, even when the component (A) and the component (B) are contained in the above content ratio, dripping can be suppressed when applied to the sterilized site, Moreover, the stability of the emulsified cosmetic composition is excellent. The above HLB value refers to the HLB (Hydrophile-Lipophile Balance) value of all nonionic surfactants in the emulsified cosmetic composition of the present invention. good. The HLB value of each nonionic surfactant can be calculated by the Griffin method. Then, the HLB value of the entire nonionic surfactant is calculated according to the mass ratio in the nonionic surfactant. For example, when x parts by mass of a nonionic surfactant with an HLB value of a and y parts by mass of an HLB value of b are used, the HLB value of the entire nonionic surfactant is a×x/ It is calculated by (x+y)+b×y/(x+y).

Component (D) contains at least a polyglycerol fatty acid ester. Examples of the polyglycerol fatty acid ester include diglyceryl monocaprylate, decaglyceryl monocaprylate, hexaglyceryl monocaprate, tetraglyceryl monolaurate, hexaglyceryl monolaurate, decaglyceryl monolaurate, poly(4-10 ) glyceryl, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate, poly(2-10) glyceryl monostearate, diglyceryl monooleate, poly(2-10) glyceryl monooleate, mono Hexaglyceryl oleate, diglyceryl sesquioleate, poly(2-10) glyceryl diisostearate, decaglyceryl distearate, poly(6-10) glyceryl distearate, diglyceryl triisostearate, poly(10) glyceryl tristearate and polyglycerin fatty acid esters having a polyglycerin degree of polymerization of 2 to 10.

The polyglycerin fatty acid ester may be an alkylene oxide adduct of polyglycerin fatty acid ester. Examples of the alkylene oxide adducts of the polyglycerol fatty acid esters include polyoxyethylene glyceryl monostearate and polyoxyethylene glyceryl monooleate. The polyglycerol fatty acid ester may be used alone or in combination of two or more.

Among the above polyglycerin fatty acid esters and alkylene oxide adducts thereof, those having an HLB value (individual HLB value of each compound) within the above range are preferred.

Component (D) may contain nonionic surfactants other than polyglycerin fatty acid esters. Examples of the other nonionic surfactants include sorbitan fatty acid esters, monoglycerin fatty acid esters, alkylene oxide adducts thereof, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, and polyoxyethylene. Sorbit fatty acid ester, polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene sterol and its derivatives, polyoxyethylene lanolin and its derivatives, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil and the like.

The content of component (D) in the emulsified cosmetic composition of the present invention is not particularly limited, but is 2.0 to 8.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 2.5 to 6.0% by mass. When the content is 2.0% by mass or more, the stability of the emulsified cosmetic composition is excellent. When the content is 8.0% by mass or less, non-stickiness is superior. The content of component (D) is the total content of all components (D) in the emulsified cosmetic composition of the present invention.

The content of the polyglycerol fatty acid ester in the emulsified cosmetic composition of the present invention is not particularly limited, but is 2.0 to 8.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 2.5 to 6.0% by mass. When the content is 2.0% by mass or more, dripping when applied to a sterilized site can be further suppressed, and the stability of the emulsified cosmetic composition is more excellent. When the content is 8.0% by mass or less, non-stickiness is superior. The polyglycerin fatty acid ester content is the total content of all polyglycerin fatty acid esters in the emulsified cosmetic composition of the present invention.

The content of polyglycerol fatty acid ester in component (D) is not particularly limited, but is preferably 60.0% by mass or more, more preferably 80.0% by mass, relative to 100% by mass of component (D). % or more, more preferably 90.0 mass % or more, and particularly preferably 95.0 mass % or more. When the content is 60.0% by mass or more, dripping when applied to a sterilized site can be further suppressed, and the stability of the emulsified cosmetic composition is more excellent.

[Component (E)]
Component (E) is a bactericidal component, particularly a bactericidal component other than components (A), (B), and polyhydric alcohols other than component (B). By using component (E) in combination with component (A) and component (B), the emulsified cosmetic composition of the present invention exhibits sufficient bactericidal action. Only one kind of component (E) may be used, or two or more kinds thereof may be used.

Examples of component (E) include isopropylmethylphenol, benzalkonium chloride, benzethonium chloride, chlorhexidine hydrochloride, phenol, trichlorocarbanilide, chlorhexidine gluconate, triclosan, halocarbanes such as triclocarban, piroctone olamine, and zinc pyrithione. , salicylic acid, sorbic acid, lysozyme chloride, aluminum phenolsulfonate, and the like.

The content of component (E) in the emulsified cosmetic composition of the present invention is not particularly limited, but is 0.01 to 5.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 0.02 to 1.0% by mass. When the content is 0.01% by mass or more, the bactericidal action is excellent. When the content is 5.0% by mass or less, the stability of the emulsified cosmetic composition is excellent. The content of component (E) is the total content of all components (E) in the emulsified cosmetic composition of the present invention.

[Component (F)]
Component (F) is sodium edetate (sodium ethylenediaminetetraacetate), which is a chelating agent that exerts a chelating effect on a wide range of metals. By using component (F) in combination with component (A), component (B), and component (E), the emulsified cosmetic composition of the present invention exhibits sufficient bactericidal activity. Only one kind of component (F) may be used, or two or more kinds thereof may be used.

Component (F) includes, for example, disodium edetate, trisodium edetate, and tetrasodium edetate.

The content of component (F) in the emulsified cosmetic composition of the present invention is not particularly limited, but is 0.01 to 0.5% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 0.03 to 0.3% by mass. When the content is 0.01% by mass or more, the bactericidal action is excellent. When the content is 0.5% by mass or less, the stability of the emulsified cosmetic composition is excellent. The content of component (F) is the total content of all components (F) in the emulsified cosmetic composition of the present invention.

[Other ingredients]
The emulsified cosmetic composition of the present invention may contain components (other components) other than the above components such as components (A) to (F). The other ingredients are not particularly limited, and include, for example, ingredients commonly used in cosmetics and quasi-drugs. Specifically, for example, water; oily components; higher alcohols; polyhydric alcohols other than component (B); anti-inflammatory agents such as glycyrrhizic acid and salts thereof; cooling agents such as menthol; and salts thereof, lactic acid and its salts, sodium hydroxide, pH adjusters such as triethanolamine; fragrances; ultraviolet absorbers; antioxidants; preservatives; sequestering agents other than component (F); vitamins; amino acids; astringents; whitening agents; animal and plant extracts; neutralizing agents; Only one kind of each of the other components may be used, or two or more kinds thereof may be used.

The emulsified cosmetic composition of the present invention preferably contains an oily component and water as the other components. In this specification, the oily component may be referred to as "component (G)" and water as "component (H)".

Component (G) is an oily component such as vegetable oil, ester oil, silicone oil, hydrocarbon oil and wax. Only one kind of component (G) may be used, or two or more kinds thereof may be used.

Examples of the vegetable oils include macadamia nut oil, eucalyptus oil, coconut oil, avocado oil, safflower oil, olive oil, palm oil, palm kernel oil, kukui nut oil, shea butter, cocoa butter, almond oil, and sunflower oil. , rosehip oil, olive squalane, camellia oil, kiwifruit seed oil, camellia oil, apricot kernel oil, sesame oil, soybean oil, jojoba oil, castor oil, hazelnut oil, meadowfoam oil, peppermint oil, argan oil, carrot oil, lavender oil, sugar squalane, damask rose flower wax, centifolia rose flower wax, Jasminum flower wax, camellia oil, hydrogenated products thereof (e.g., hydrogenated castor oil, hydrogenated jojoba oil, hydrogenated palm oil, hydrogenated avocado oil, hydrogenated soybean oil, etc.).

Examples of the ester oils include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, 2-ethylhexyl palmitate, octyldodecyl myristate, isopropyl isostearate, propylene glycol isostearate, 2- Cetyl ethylhexanoate, glyceryl tri-2-ethylhexanoate, caprylic/capric triglyceride, isononyl isononanoate, diisopropyl adipate, pentaerythrityl tetraoctanoate, pentaerythritol tetraisostearate, diisostearyl malate , erythrityl triethylhexanoate, 2-ethylhexyl hydroxystearate, hexa(hydroxystearate/stearate/rosinate) dipentaerythrityl, tetra(hydroxystearate/isostearate) dipentaerythrityl, hexahydroxystearate dipentaerythrityl, (ethylhexanoate/stearate) Acid/adipate) glyceryl, tri(caprylate/caprate/myristate/stearate) glyceryl, hexa(behenate/benzoate/ethylhexanoate) dipentaerythrityl, alkyl benzoate (C12-15) and the like.

Examples of the silicone oil include, but are not limited to, methylpolysiloxane (dimethylpolysiloxane), dimethylsilicone oils such as highly polymerized methylpolysiloxane; methylphenylsilicone oils such as methylphenylpolysiloxane; Cyclic silicone oils such as methylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane; aminopropylmethylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylmethyl Modified silicones such as amino-modified silicones such as siloxane/dimethylsiloxane copolymers, carboxy-modified silicones, fatty acid-modified silicones, alcohol-modified silicones, aliphatic alcohol-modified silicones, epoxy-modified silicones, fluorine-modified silicones, and alkyl-modified silicones; polysiloxane, dimethiconol, and the like.

Examples of the hydrocarbon oils include α-olefin oligomers, petrolatum, isoparaffin, light isoparaffin, light liquid isoparaffin, squalane, synthetic squalane, vegetable squalane, liquid isoparaffin, liquid paraffin, etc., hydrogenated polyisobutene, hydrogenated (tetradecenyl/ methyl pentadecene), isododecane, and the like.

Examples of the wax include carnauba wax, candelilla wax, beeswax, rice bran wax, shellac wax, whale wax, lanolin, and sunflower seed wax.

The content of component (G) in the emulsified cosmetic composition of the present invention is not particularly limited, but is 1.0 to 15.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention. is preferred, and more preferably 3.0 to 12.0% by mass. When the content is 1.0% by mass or more, the moisturizing feeling is excellent, the viscosity is increased, dripping can be further suppressed when applied to the sterilized site, and the emulsified cosmetic composition is stabilized. superior in terms of performance. When the content is 15.0% by mass or less, the non-stickiness is excellent, and the stability of the emulsified cosmetic composition is excellent. The content of component (G) is the total content of all components (G) in the emulsified cosmetic composition of the present invention.

Component (H) is water, and although not particularly limited, purified water is preferred. The content of component (H) in the emulsified cosmetic composition of the present invention is preferably 20.0 to 84.0% by mass with respect to 100% by mass of the emulsified cosmetic composition of the present invention, and more It is preferably 40.0 to 70.0% by mass. When the content is 20.0% by mass or more, the non-stickiness is excellent, and the stability of the emulsified cosmetic composition is excellent. When the content is 84.0% by mass or less, the moisturizing feeling is excellent, and the stability of the emulsified cosmetic composition is excellent.

The higher alcohol acts as an emulsifying aid in the emulsified cosmetic composition of the present invention, further improving the stability of the emulsified cosmetic composition. Examples of the higher alcohols include cetyl alcohol, stearyl alcohol, isostearyl alcohol, myristyl alcohol, 2-octyldodecanol, oleyl alcohol, and behenyl alcohol. Only one type of the higher alcohol may be used, or two or more types may be used.

The content of the higher alcohol in the emulsified cosmetic composition of the present invention is preferably 0.5 to 8.0% by mass, more preferably 0.5 to 8.0% by mass, based on 100% by mass of the emulsified cosmetic composition of the present invention. It is 1.0 to 5.0% by mass. When the content is 0.5% by mass or more, the stability of the emulsified cosmetic composition is further improved. When the content is 8.0% by mass or less, non-stickiness is superior.

The emulsified cosmetic composition of the present invention preferably contains only a small amount or substantially no anionic surfactant, cationic surfactant, and amphoteric surfactant. That is, the emulsified cosmetic composition of the present invention does not contain an anionic surfactant, cationic surfactant, and amphoteric surfactant, or the anionic surfactant in the emulsified cosmetic composition of the present invention , the cationic surfactant, and the amphoteric surfactant, with respect to 100% by mass of the emulsified cosmetic composition of the present invention, 1% by mass or less (preferably 0.5% by mass or less, more preferably is 0.3% by mass or less). When the content of the surfactant is 1% by mass or less, the stability of the composition is excellent, and stickiness during application can be further suppressed.

The emulsified cosmetic composition of the present invention is an emulsified cosmetic composition, preferably an oil-in-water (O/W) type emulsified cosmetic composition. Examples of dosage forms of the emulsified cosmetic composition of the present invention include creams and milky lotions.

The emulsified cosmetic composition of the present invention is used, for example, as cosmetics, quasi-drugs, pharmaceuticals, miscellaneous goods, and the like. Specifically, it is preferably used in face cosmetics (moisturizing cosmetics, massage cosmetics, etc.), body cosmetics (moisturizing cosmetics, massage cosmetics, deodorant cosmetics, etc.), hand cosmetics, and the like.

The emulsified cosmetic composition of the present invention is preferably a skin cosmetic composition that is applied to the skin (skin). The site to which the emulsified cosmetic composition of the present invention is applied is not particularly limited. , knees, heels, neck, armpits, and back.

The emulsified cosmetic composition of the present invention is not particularly limited, and can be produced by a known or commonly used method. For example, there is a method of mixing each of the above components and stirring with a homomixer to emulsify each component.

The emulsified cosmetic composition of the present invention comprises a lower alcohol [component (A)], a dihydric alcohol and/or trihydric alcohol [component (B)], a bactericidal component [component (E)], and sodium edetate. By blending with [Component (F)], an excellent bactericidal action can be exhibited even if the content ratio of Component (A) and Component (B) is low. In addition, a low alcoholic odor can be obtained due to the low content of component (A). Then, as a surfactant, a nonionic surfactant [component (D)] containing polyglycerin fatty acid ester and having an HLB value of 8.0 to 15.0 is added to form a stable emulsified state. can do. By adding a thickening agent [component (C)], it is possible to sufficiently increase the viscosity while suppressing the stickiness, and the moisturizing feeling is excellent, and dripping is less likely to occur. Therefore, the emulsified cosmetic composition of the present invention has excellent stability and excellent feeling during use.

EXAMPLES The present invention will be described in more detail below based on examples, but the present invention is not limited only to these examples. The compounding amounts shown in the table are the compounding amounts of each component (that is, the compounding amount of the active ingredient in each raw material; so-called pure content), and are expressed in "% by mass" unless otherwise specified. Also, "-" in the table indicates that it was not blended.

Examples and Comparative Examples Cosmetic compositions of Examples and Comparative Examples were prepared by a conventional method using each component (components (A) to (H)) shown in the table and other components.

The main ingredients listed in the table are as follows.

<Component (C)>
Hydrophobized hydroxypropyl methylcellulose: trade name "Sangelose 60L", manufactured by Daido Kasei Co., Ltd. <Nonionic surfactant>
Polyoxyethylene cetyl ether: trade name “EMALEX 120”, manufactured by Nippon Emulsion Co., Ltd. Decaglyceryl monostearate: trade name “NIKKOL DECAGLYN 1-SV”, manufactured by Nippon Surfactant Kogyo Co., Ltd. Decaglyceryl distearate: trade name “NIKKOL DECAGLYN 2” -SV", manufactured by Nippon Surfactant Kogyo Co., Ltd. Polyglyceryl monooleate: trade name "NIKKOL DGMO-CV", manufactured by Nippon Surfactant Kogyo Co., Ltd. Glyceryl monostearate: trade name "CUTINA GMS-V", manufactured by BASF Japan Co., Ltd.

(evaluation)
Each cosmetic composition obtained in Examples and Comparative Examples was evaluated as follows. The evaluation results are shown in the table. "-" in the table indicates that evaluation was not performed. In addition, since no emulsified composition was obtained in Comparative Example 8, other evaluations were not performed.

(1) Absence of dripping Each cosmetic composition obtained in Examples and Comparative Examples was applied to the back of the hand, and dripping during application was evaluated. Then, the lack of dripping was judged according to the following criteria.
[criterion]
A (excellent): Does not drip from the back of the hand.
B (Good): Feels looser than A, but does not drip from the back of the hand.
C (defective): Dripping from the back of the hand.

(2) Moisturizing feeling Each cosmetic composition obtained in Examples and Comparative Examples was applied to the back of the hand, and the moisturizing feeling was evaluated after it was felt that it was absorbed into the skin. Then, the moist feeling was evaluated according to the following criteria.
[criterion]
A (excellent): Strong feeling of moistness and moistness is felt on the skin of the applied part.
B (Good): Moisturizing and moist feeling is felt on the skin of the applied part.
C (poor): Moisturizing and moist feeling is not felt at all on the skin of the applied part, or it is slightly felt.

(3) Absence of stickiness Each cosmetic composition obtained in Examples and Comparative Examples was applied to the back of the hand, and the stickiness was evaluated after it was felt that the composition was absorbed into the skin. The non-stickiness was evaluated according to the following criteria.
[criterion]
A (excellent): No stickiness is felt after application.
B (Good): Slight stickiness is felt after application.
C (Poor): Stickiness is clearly felt after application.

(4) Absence of Alcohol Smell Each of the cosmetic compositions obtained in Examples and Comparative Examples was applied to the back of the hand, and the alcohol odor was evaluated while it was blended with the skin. Then, the lack of alcohol smell was evaluated according to the following criteria.
[criterion]
A (excellent): No alcohol odor is perceived.
B (Good): Slight alcohol odor is perceived.
C (poor): Alcohol odor is clearly perceived.

(5) Bactericidal action To each cosmetic composition obtained in Examples and Comparative Examples, bacterial solution 1 (Escherichia coli) and bacterial solution 2 (Staphylococcus aureus) were added, stirred for 5 minutes, and then mixed with an agar medium. After culturing for 48 hours, the bacterial count was evaluated. For evaluation, the ratio of the number of bacteria killed by contact with each cosmetic composition to the number of bacteria in the bacterial solution before adding each cosmetic composition was calculated. Then, the bactericidal activity was determined according to the following criteria.
[criterion]
A (excellent): 99.99% or more of bacteria were killed in both bacterial solution 1 and bacterial solution 2.
B (good): 99.9% or more and less than 99.99% of bacteria were killed in both bacterial solution 1 and bacterial solution 2, or 99.9% or more in either bacterial solution 1 or bacterial solution 2 , less than 99.99% of the bacteria were killed, and on the other hand, more than 99.99% of the bacteria were killed.
C (poor): Less than 99.9% of bacteria were killed in at least one of bacterial solution 1 and bacterial solution 2.

(6) Stability Each of the cosmetic compositions obtained in Examples and Comparative Examples was sealed in a transparent glass container and allowed to stand in a constant temperature bath whose temperature was varied from 5° C. to 45° C. in a 24-hour cycle for 1 week. . After standing for one week, each cosmetic composition was visually observed. Then, the stability was judged according to the following criteria.
[criterion]
A (excellent): No separation or aggregation observed, creamy.
B (Good): Slightly separated or aggregated, but creamy.
C (poor): Separation and aggregation are clearly observed, and the film is non-uniform.

As shown in the table, the emulsified cosmetic compositions of the present invention (Examples) were evaluated as excellent in bactericidal action, non-stickiness, moisturizing feeling, low alcohol odor, and stability, and in that dripping was suppressed. was done. On the other hand, when the content of component (A) is low (Comparative Example 1), when component (F) is not blended (Comparative Example 9), and when another chelating agent is used instead of component (F) (comparative Examples 10 and 11) were both evaluated as having poor bactericidal action. When the content of component (A) was high (Comparative Examples 2 and 3), it was evaluated that the alcohol smell was strong. When the content of component (B) was low (Comparative Example 4), it was evaluated as having poor moisturizing sensation. When the content of component (B) was high (Comparative Example 5), it was evaluated as inferior in non-stickiness. When the polyglycerol fatty acid ester was not used as the nonionic surfactant (Comparative Examples 6 and 7), dripping occurred, and the feeling of use was evaluated as inferior. When the HLB value of the nonionic surfactant was low (Comparative Example 8), emulsification did not occur and an emulsified composition could not be produced.

Furthermore, formulation examples of the emulsified cosmetic composition of the present invention are shown below.
Formulation Example 1: Hand Cream Ethanol 15.0% by mass
Dipropylene glycol 5.0% by mass
Glycerin 5.0% by mass
Carboxyvinyl polymer 0.4% by mass
Decaglyceryl monostearate (HLB: 9.5) 3.0% by mass
Polyglyceryl monooleate (HLB: 5.5) 1.0% by mass
Benzalkonium chloride 0.08% by mass
Disodium edetate 0.08% by mass
Shea butter 2.0% by mass
Isopropyl myristate 1.0% by mass
Liquid paraffin 1.0% by mass
Behenyl alcohol 1.5% by mass
Cetanol 0.3% by mass
Perfume 0.1% by mass
Remainder of purified water

Formulation Example 2: Hand Cream Ethanol 18.0% by mass
1,3-butylene glycol 4.0 mass%
Glycerin 10.0% by mass
Xanthan gum 0.3% by mass
Decaglyceryl distearate (HLB: 9.5) 5.0% by mass
Benzethonium chloride 0.05% by mass
Disodium edetate 0.2% by mass
Isononyl isononanoate 1.0% by mass
Squalane 2.0% by mass
Beeswax 1.0% by mass
Behenyl alcohol 1.0% by mass
Cetanol 0.8% by mass
Perfume 0.08% by mass
Remainder of purified water

Claims (2)

Containing the following component (A), the following component (B), the following component (C), the following component (D), the following component (E), and the following component (F),
An emulsified cosmetic composition in which the content of component (A) is 8.0 to 25.0% by mass and the content of component (B) is 8.0 to 18.0% by mass.
Component (A): Lower alcohol Component (B): Dihydric alcohol and/or trihydric alcohol Component (C): Thickener Component (D): Contains polyglycerol fatty acid ester and has an HLB value of 8.0 to 15.0. 0 nonionic surfactant component (E): bactericidal component component (F): sodium edetate The emulsified cosmetic composition according to claim 1, wherein the content of the polyglycerin fatty acid ester is 2.0 to 8.0% by mass.