Oil-in-water emulsion cosmetic and massage method

Abstract

To provide an oil-in-water type emulsion cosmetic which has an excellent penetration feeling and can reduce stickiness after use while exhibiting massage properties.SOLUTION: There is provided an oil-in-water type emulsion cosmetic which comprises: a component (A1) and a component (A2): a dimethylpolysiloxane having a kinematic viscosity at 25°C in a specific range, a component (B): a vegetable fat and oil having a melting point of 25 to 50°C and / or a fatty acid triglyceride having a melting point of 25 to 50°C, a component (C): one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, hexa(hydroxystearate / stearic acid / rosinic acid)dipentaerythrityl, tetra(hydroxystearic acid / isostearic acid) dipentaerythrityl and dipentaerythrityl hexahydroxystearate, component (D): a polyhydric alcohol and a component (E): water.SELECTED DRAWING: None

Description

[Technical Field] 【0001】 This invention relates to an oil-in-water emulsion cosmetic. Furthermore, this invention relates to a massage method using the above-mentioned oil-in-water emulsion cosmetic. [Background technology] 【0002】 In beauty massages aimed at reducing swelling, providing a lifting effect, and offering a refreshing effect, oil-in-water cosmetics such as massage creams have been used to enhance these effects. 【0003】 The above-mentioned cosmetic product is required to have properties that allow for appropriate slipperiness and resistance to move the skin during application, while minimizing the feeling of friction caused by direct contact between the fingers and the skin. To achieve these properties, it is necessary to incorporate a certain amount of oily components to harden the product, thereby creating resistance during massage and improving its slipperiness (for example, Patent Document 1). Conventionally, cosmetics with a relatively heavy application feel were often used, prioritizing massage properties, and it was common practice to wash off the cosmetic product after massaging. [Prior art documents] [Patent Documents] 【0004】 [Patent Document 1] Japanese Patent Publication No. 2001-39851 [Overview of the project] [Problems that the invention aims to solve] 【0005】 In recent years, easy massage treatments that do not require rinsing, and methods of using massage cosmetics as a leave-on skincare product have been proposed. However, when using conventional massage cosmetics that are intended to be rinsed off, there are issues such as slow penetration and the feeling that the product remains on the skin for a long time due to the emphasis on the duration of the massage, or a sticky feeling after the massage, which can be unpleasant when used as a leave-on product. 【0006】 Therefore, the objective of the present invention is to provide an oil-in-water emulsion cosmetic that exhibits massage properties, has excellent penetration, and reduces stickiness after use. [Means for solving the problem] 【0007】 The inventors diligently studied to solve the above problems and found that an oil-in-water emulsion cosmetic containing the following components (A) to (E) exhibits massage properties, has excellent penetration, and reduces stickiness after use. The present invention was completed based on these findings. 【0008】 In other words, the present invention provides an oil-in-water emulsion cosmetic composition containing the following components (A1), (A2), (B), (C), (D), and (E). Component (A1): Kinematic viscosity of 100-1000 mm 2 Dimethylpolysiloxane / s Component (A2): Kinematic viscosity of 30,000 to 100,000 mm² 2 Dimethylpolysiloxane / s Ingredient (B): Vegetable oils with a melting point of 25-50°C, and / or fatty acid triglycerides with a melting point of 25-50°C. Component (C): At least one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, hexakis(hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl, tetrakis(hydroxystearic acid / isostearic acid) dipentaerythrityl, and hexahydroxystearic acid dipentaerythrityl Component (D): Polyhydric alcohol Component (E): Water 【0009】 It is preferable that the oil-in-water type emulsified cosmetic further contains the following component (F). Component (F): Nonionic surfactant 【0010】 It is preferable that the oil-in-water type emulsified cosmetic further contains the following component (G). Component (G): Water-soluble polymer 【0011】 It is preferable that the oil-in-water type emulsified cosmetic further contains the following component (H). Component (H): An oily component that is solid at 25°C other than the above component (B) 【0012】 It is preferable that the oil-in-water type emulsified cosmetic further contains the following component (I). Component (I): An oily component that is liquid at 25°C 【0013】 Also, it is preferable that the above oil-in-water type emulsified cosmetic is used without being washed off. 【0014】 Also, it is preferable that the above oil-in-water type emulsified cosmetic is used when massaging. 【0015】 The present invention also provides a massage method including an application step of applying the above oil-in-water type emulsified cosmetic to the skin and a massage step of massaging the portion to which the above oil-in-water type emulsified cosmetic has been applied after the above application step, and not including a step of rinsing the applied portion after the above massage step. 【Effects of the Invention】 【0016】 The oil-in-water emulsion cosmetic of the present invention exhibits massage properties while providing excellent penetration and suppressing stickiness after use. Therefore, a massage cream using the above oil-in-water emulsion cosmetic can be used without rinsing. [Modes for carrying out the invention] 【0017】 Unless otherwise specified in this specification, "X~Y" representing a numerical range means "X or more and Y or less". Also, unless otherwise specified in this specification, the mass % representing the content of an ingredient is the value with the total mass of the oil-in-water emulsion cosmetic composition set to 100% by mass. 【0018】 Furthermore, in this specification, "solid" at 25°C means that the substance is solid or semi-solid (paste-like) at 25°C and is not "liquid." Also, "liquid" means that when 50g of the sample is placed in a glass bottle with a radius of 2cm and a height of 7cm, and the glass bottle is inverted at a temperature of 25°C, the sample will drip from the glass bottle within 5 minutes immediately after inversion. 【0019】 Furthermore, in this invention, "massability" refers to the property of improving the ease of massage by applying the agent, and this property means that it lasts for a sufficient amount of time for massage. More specifically, it refers to the property and its duration that makes it easier to move the skin with the hands (fingers, palms, etc.) by having an appropriate amount of slipperiness and resistance when applied, and also makes it difficult to feel friction as if the hands were directly touching the skin by feeling the presence of the agent (the applied layer of the agent) between the hands and the skin. Furthermore, "penetration" refers to how well the product blends into the skin. Specifically, it means that after a certain amount of time has passed since application or massage, the product penetrates the skin and the feeling of residue disappears. In other words, a lack of penetration means that the product remains on the skin for a long time during massage, and in such cases, the user experience is diminished when using the product without rinsing it off. Furthermore, "stickiness" refers to the viscous feeling experienced after the product has penetrated the skin. 【0020】 [Oil-in-water emulsion cosmetic] The oil-in-water emulsion cosmetic composition of the present invention has a kinematic viscosity of 100 to 1000 mm at 25°C. 2 Dimethylpolysiloxane with a viscosity of 30,000 to 100,000 mm² at 25°C. 2 It contains dimethylpolysiloxane ( / s); vegetable oils and / or fatty acid triglycerides with a melting point of 25-50°C; at least one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, dipentaerythrityl hexa(hydroxystearate / stearate / rosinate), dipentaerythrityl tetra(hydroxystearate / isostearate), and dipentaerythrityl hexahydroxystearate; a polyhydric alcohol; and at least water. 【0021】 In this specification, the above-mentioned "kinematic viscosity at 25°C is 100 to 1000 mm²" 2 Dimethylpolysiloxane with a viscosity of 30,000 to 100,000 mm² at 25°C is referred to as "Component (A1)," and the above "Kinematic viscosity at 25°C is 30,000 to 100,000 mm²" is referred to as "Component (A1)." 2 The above-mentioned "dimethylpolysiloxane which is / s" may be referred to as "Component (A2)", the above-mentioned "vegetable oils and / or fatty acid triglycerides with a melting point of 25-50°C" as "Component (B)", the above-mentioned "at least one compound selected from the group consisting of lauroyl glutamate di(octyldodecyl / phytosteryl / behenyl), hexa(hydroxystearate / stearate / rosinate)dipentaerythrityl, tetra(hydroxystearate / isostearate)dipentaerythrityl, and hexahydroxystearate dipentaerythrityl" as "Component (C)", the above-mentioned "polyhydric alcohol" as "Component (D)", and the above-mentioned "water" as "Component (E)". In other words, the oil-in-water emulsion cosmetic composition of the present invention contains at least Component (A1), Component (A2), Component (B), Component (C), Component (D), and Component (E). 【0022】 The oil-in-water type emulsified cosmetic of the present invention preferably contains a nonionic surfactant. Further, the oil-in-water type emulsified cosmetic of the present invention preferably contains a water-soluble polymer. The oil-in-water type emulsified cosmetic of the present invention may contain an oily component that is solid at 25°C other than component (B). The oil-in-water type emulsified cosmetic of the present invention may contain an oily component that is liquid at 25°C. In this specification, the above "nonionic surfactant" may be referred to as "component (F)", the above "water-soluble polymer" may be referred to as "component (G)", the above "oily component that is solid at 25°C other than component (B)" may be referred to as "component (H)", and the above "oily component that is liquid at 25°C" may be referred to as "component (I)". The above oil-in-water type emulsified cosmetic may contain component (F), component (G), component (H), and component (I), and may also contain components other than components (A1) to (I). 【0023】 <Component (A1)> Component (A1) is dimethylpolysiloxane (dimethicone) having a kinematic viscosity of 100 to 1000 mm 2 / s. Due to the non-stickiness of the compound itself, component (A1) exhibits an effect of suppressing stickiness after penetration. In addition, by improving the slipperiness during application and enhancing the thickness feeling (the feeling of the presence of the applied layer) of the agent coating layer, the massaging property is improved. Component (A1) may be used alone or in combination of two or more. In this specification, the kinematic viscosity is the value measured under the condition of 25°C in accordance with JIS K 2283. 【0024】 From the viewpoints of the stickiness suppressing effect and the massaging property, the kinematic viscosity of component (A1) at 25°C is preferably 200 to 600 mm 2 / s. 【0025】 As component (A1), commercially available products can also be used. Commercially available products include, for example, the product name "DOWSIL SH200C FLUID 1000cSt" (kinematic viscosity at 25°C: 1000 mm 2 / s), the product name "DOWSIL SH200C FLUID 350cSt" (kinematic viscosity at 25°C: 350 mm 2 / s), Product name "DOWSIL SH200C FLUID 100cSt" (Kinematic viscosity at 25℃: 100mm 2 Examples include / s) (manufactured by Dow Chemical Company). 【0026】 The content of component (A1) is preferably 0.5 to 6.0% by mass, and more preferably 0.7 to 2.0% by mass, in the oil-in-water emulsion cosmetic. A content of 0.5% by mass or more of component (A1) can further suppress stickiness after use and further improve massage properties. A content of 6.0% by mass or less of component (A1) can further improve penetration. 【0027】 <Ingredient (A2)> Component (A2) has a kinematic viscosity of 30,000 to 100,000 mm². 2 The active ingredient is dimethylpolysiloxane (dimethicone) / s. Component (A2) can suppress stickiness by forming a film. Furthermore, it improves penetration. Component (A2) may be used alone or in combination of two or more types. 【0028】 The kinematic viscosity of component (A2) at 25°C is preferably 50,000 to 80,000 mm² from the viewpoint of anti-stickiness effect and penetration. 2 It is / s. 【0029】 For component (A2), commercially available products can also be used. For example, a commercially available product with the product name "KF-96H-30,000 cs" (kinematic viscosity at 25°C: 30,000 mm²) can be used. 2 / s), Product name "KF-96H-50,000 cs" (Kinematic viscosity at 25℃: 50,000 mm) 2 / s), Product name "KF-96H-60,000 cs" (Kinematic viscosity at 25℃: 60,000 mm²) 2 / s), Product name "KF-96H-100,000 cs" (Kinematic viscosity at 25℃: 100,000 mm²) 2 / s) (Manufactured by Shin-Etsu Chemical Co., Ltd.); Product name "DOWSIL SH200 FLUID 30,000 cSt" (Kinematic viscosity at 25℃: 30,000 mm) 2 / s), "DOWSIL SH200 FLUID 60,000 cSt" (kinematic viscosity at 25℃: 60,000 mm²) 2 / s), "DOWSIL SH200 FLUID 100,000 cSt" (kinematic viscosity at 25℃: 100,000 mm²) 2 Examples include / s) (manufactured by Dow Chemical Company). 【0030】 The content of component (A2) is preferably 0.05 to 1.5% by mass, and more preferably 0.1 to 0.7% by mass, in the oil-in-water emulsion cosmetic. A content of 0.05% by mass or more of component (A2) can further suppress stickiness after use and further improve penetration. A content of 1.5% by mass or less of component (A2) can further suppress stickiness after use and further improve penetration. 【0031】 In this invention, a high level of stickiness suppression is achieved by using in combination components (A1) and (A2), which have different mechanisms of action. Furthermore, a moderate level of penetration is achieved by using in combination component (A1), which has a relatively low penetration sensation, and component (A2), which improves penetration sensation. 【0032】 <Ingredient (B)> Component (B) is a vegetable oil with a melting point of 25-50°C, and / or a fatty acid triglyceride with a melting point of 25-50°C. Because component (B) has a melting point near body temperature, it melts during application and massage, thereby providing a feeling of penetration. It also improves the effect of suppressing stickiness after penetration. Furthermore, it increases the resistance during application, improving the massageability. Component (B) may be used alone or in combination of two or more types. 【0033】 Examples of vegetable oils with a melting point of 25-50°C include shea butter, mango butter (mango seed oil), and Astrocaryum murumuru seed butter. Examples of fatty acid triglycerides with a melting point of 25-50°C include tri(caprylic / capric / myristic / stearic acid) glyceryl and tri(palm oil fatty acid / palm kernel oil fatty acid / olive oil fatty acid / macadamia nut oil fatty acid / rapeseed oil fatty acid) glyceryl. Among these, vegetable oils with a melting point of 25-50°C are preferred as component (B). 【0034】 The content of component (B) is preferably 5.0 to 25.0% by mass, and more preferably 7.0 to 15.0% by mass, in the oil-in-water emulsion cosmetic. A content of 5.0% by mass or more of component (B) can further suppress stickiness after use. Furthermore, it can further improve the feeling of penetration. In addition, it can further improve the massage properties. A content of 25.0% by mass or less of component (B) can further suppress stickiness after use caused by component (B) itself. 【0035】 <Component (C)> Component (C) is at least one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, dipentaerythrityl hexa(hydroxystearic acid / stearic acid / rosinic acid), dipentaerythrityl tetra(hydroxystearic acid / isostearate), and dipentaerythrityl hexahydroxystearate. Component (C) can improve penetration and also improve the effect of suppressing stickiness after use. Component (C) may be used alone or in combination of two or more types. 【0036】 The content of component (C) is preferably 0.5 to 4.0% by mass, and more preferably 1.0 to 3.0% by mass, in the oil-in-water emulsion cosmetic. A content of 0.5% by mass or more of component (C) allows for a more appropriate level of penetration while suppressing stickiness caused by oily components other than component (C). A content of 4.0% by mass or less allows for further suppression of stickiness derived from component (C). 【0037】 <Ingredient (D)> Component (D) is a polyhydric alcohol. Component (D) improves massage properties by increasing the resistance during application and enhancing the perceived thickness of the applied layer. Component (D) may be used alone or in combination of two or more types. 【0038】 Examples of component (D) include glycols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and 1,2-decanediol; glycerin compounds such as glycerin, diglycerin, and polyglycerin; and sugar alcohols such as xylitol, trehalose, maltitol, mannitol, sorbitol, erythritol, arabitol, ribitol, galactitol, glucitol, and erythritol. 【0039】 The content of component (D) is not particularly limited, but is preferably 5.0 to 30.0% by mass, and more preferably 10.0 to 20.0% by mass, in the oil-in-water emulsion cosmetic. When the content of component (D) is 5.0% by mass or more, the massage properties can be further improved. When the content of component (D) is 30.0% by mass or less, stickiness after application can be further reduced. In addition, the feeling of penetration can be further improved. 【0040】 <Ingredient (E)> Component (E) is water. Component (E) acts as a medium for forming an oil-in-water emulsion. Component (E) is not particularly limited, but purified water is preferred. 【0041】 The content of component (E) is preferably 35.0 to 80.0% by mass, and more preferably 40.0 to 70.0% by mass, in the oil-in-water emulsion cosmetic. 【0042】 <Ingredients (F)> Component (F) is a nonionic surfactant. Component (F) acts as an emulsifier to form an oil-in-water emulsion. Component (F) may be used alone or in combination of two or more types. 【0043】 Examples of component (F) include sorbitan fatty acid esters, glycerin fatty acid esters and their alkylene oxide adducts, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkylphenyl formaldehyde condensates, polyoxyethylene sterols and their derivatives, polyoxyethylene lanolin and its derivatives, alkyl glucosides, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, and polyoxyethylene castor oil. 【0044】 Examples of sorbitan fatty acid esters include sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monopalmitate, sorbitan monolaurate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquistearate, sorbitan sesquioleate, sorbitan sesquiisostearate, and sorbitan coconut oil fatty acid. Examples of alkylene oxide adducts of sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan monococonut oil fatty acid, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate. 【0045】 The above-mentioned glycerin fatty acid esters include both monoglycerin fatty acid esters and polyglycerin fatty acid esters. Examples of monoglycerin fatty acid esters include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monobehenate, glyceryl monooleate, glyceryl monoerucate, glyceryl sesquioleate, glyceryl distearate, glyceryl diisostearate, and glyceryl diarachinate. Examples of the above-mentioned polyglycerin fatty acid esters include polyglycerin fatty acid esters with a degree of polymerization of 2 to 10, such as diglyceryl monocaprylate, decaglyceryl monocaprylate, hexaglyceryl monocaprate, tetraglyceryl monolaurate, hexaglyceryl monolaurate, decaglyceryl monolaurate, poly(4-10)glyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate, poly(2-10)glyceryl monostearate, diglyceryl monooleate, hexaglyceryl monooleate, diglyceryl sesquioleate, poly(2-10)glyceryl diisostearate, poly(6-10)glyceryl distearate, diglyceryl triisostearate, and poly(10)glyceryl tristearate. Furthermore, examples of alkylene oxide adducts of glycerin fatty acid esters include polyoxyethylene glyceryl monostearate and polyoxyethylene glyceryl monooleate. 【0046】 Examples of the above-mentioned polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxypropylene cetyl ether, polyoxypropylene isocetyl ether, polyoxypropylene stearyl ether, and polyoxypropylene oleyl ether. 【0047】 The above polyoxyalkylene fatty acid esters include both polyoxyalkylene mono fatty acid esters and polyoxyalkylenedi fatty acid esters. Examples of polyoxyalkylene mono fatty acid esters include polyethylene glycol mono fatty acid esters such as polyethylene glycol monooleate, polyethylene glycol monostearate, and polyethylene glycol monolaurate; and propylene glycol mono fatty acid esters such as propylene glycol monostearate, propylene glycol monolaurate, and propylene glycol monooleate. Examples of polyoxyalkylenedi fatty acid esters include polyethylene glycol di fatty acid esters such as polyethylene glycol dilaurate, polyethylene glycol dimyristate, polyethylene glycol dipalmitate, polyethylene glycol distearate, polyethylene glycol diisostearate, and polyethylene glycol dibehenate. 【0048】 The alkyl glucosides mentioned above are not particularly limited, but include alkyl glucosides having an alkyl group with 12 to 22 carbon atoms. Examples include lauryl glucoside, myristyl glucoside, hexadecyl glucoside (cetyl glucoside), octadecyl glucoside (stearyl glucoside), cetearyl glucoside, arachidyl glucoside, coconut oil alkyl glucoside, and alkyl glucosides (12 to 22 carbon atoms) which are mixtures thereof. 【0049】 The content of component (F) is not particularly limited, but is preferably 0.3 to 4.0% by mass, and more preferably 0.5 to 2.0% by mass, in the oil-in-water emulsion cosmetic. When the content of component (F) is 0.3% by mass or more, the emulsion stability is further improved. When the content of component (F) is 4.0% by mass or less, the stickiness after application caused by component (F) itself can be further suppressed. 【0050】 <Ingredients (G)> Component (G) is a water-soluble polymer. The inclusion of component (G) further enhances the perceived thickness of the applied layer and improves massage properties. Furthermore, the breakdown of the structure due to component (G) during massage further improves penetration. Component (G) may be used alone or in combination of two or more types. 【0051】 Component (G) is not particularly limited, but examples include gelatin, alginate; polysaccharide polymers such as xanthan gum, guar gum, carrageenan, pectin, and locust bean gum; cellulosic water-soluble polymers such as methylcellulose, ethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, and carboxymethylcellulose; carboxyvinyl polymers, alkyl-modified carboxyvinyl polymers, alkyl acrylate copolymers, (acrylates / steareth-20 methacrylate) copolymers, (acrylates / steareth-20 methacrylate) crosspolymers, (acrylates / beheneth-25 methacrylate) copolymers, (acrylates / vinyl neodecanoate) crosspolymers, (sodium acrylate / sodium acryloyldimethyl taurate) copolymers, (hydroxyethyl acrylate / sodium acryloyldimethyl taurate) copolymers, and acrylic water-soluble polymers such as polyacrylate crosspolymer-6. In particular, from the viewpoint of further improving emulsion stability, it is preferable that component (G) contains an acrylic water-soluble polymer. 【0052】 The content of component (G) is preferably 0.05 to 3.5% by mass, more preferably 0.1 to 2.0% by mass, and even more preferably 0.2 to 1.0% by mass, in the oil-in-water emulsion cosmetic. A content of 0.05% by mass or more of component (G) allows for better massage properties and a greater sense of penetration. A content of 3.5% by mass or less of component (G) allows for further suppression of the stickiness of component (G) itself. 【0053】 <Ingredients (H)> Component (H) is an oily component that is solid at 25°C, other than component (B). The inclusion of component (H) imparts appropriate resistance to the cosmetic, further improving its massage properties. Furthermore, it enhances penetration. In addition, it further reduces stickiness. 【0054】 Examples of component (H) include waxes, higher alcohols, hydrocarbon oils, higher fatty acids, and fatty acid triglycerides that are solid at 25°C. Only one type of component (H) may be used, or two or more types may be used. 【0055】 Examples of waxes that are solid at 25°C include carnauba wax, candelilla wax, beeswax, rice bran wax, shellac wax, and whale wax. 【0056】 Examples of higher alcohols that are solid at 25°C include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, isostearyl alcohol, 2-octyldodecanol, oleyl alcohol, arachidyl alcohol, behenyl alcohol, and batyl alcohol. 【0057】 Examples of hydrocarbon oils that are solid at 25°C include ceresin, paraffin, microcrystalline wax, polyethylene wax, and petrolatum. 【0058】 Examples of solid high-grade fatty acids at 25°C (for example, fatty acids with 8 to 22 carbon atoms) include lauric acid, myristic acid, palmitic acid, and stearic acid. 【0059】 Examples of fatty acid triglycerides that are solid at 25°C include glyceryl tristearate, glyceryl tribehenate, glyceryl trimyristate, and glyceryl tri(behenate / isostearate / eicosanedioate). 【0060】 The content of component (H) is not particularly limited, but is preferably 0.5 to 10.0% by mass, and more preferably 1.0 to 7.0% by mass, in the oil-in-water emulsion cosmetic. When the content of component (H) is 0.5% by mass or more, the massage properties and penetration sensation can be further enhanced. Furthermore, stickiness after application can be further suppressed. When the content of component (H) is 10.0% by mass or less, stickiness after application can be further suppressed. 【0061】 <Component (I)> Component (I) is a liquid oily component at 25°C. The inclusion of component (I) improves slipperiness, enhances massage properties, and increases penetration. Component (I) may be used alone or in combination of two or more types. 【0062】 Component (I) is not particularly limited, but examples include hydrocarbon oils, vegetable oils, ester oils, higher fatty acids, and dimethylpolysiloxanes other than components (A1) and (A2), which are liquid at 25°C. 【0063】 Examples of hydrocarbon oils that are liquid at 25°C include α-olefin oligomers, mineral oil, hydrogenated polyisobutene, isododecane, light isoparaffin, light liquid isoparaffin, squalane, synthetic squalane, vegetable squalane, liquid paraffin, and liquid isoparaffin. 【0064】 Examples of vegetable oils that are liquid at 25°C include jojoba oil. 【0065】 Examples of ester oils that are liquid at 25°C include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, 2-ethylhexyl palmitate, oleyl oleate, octyldodecyl myristate, octyldodecyl oleate, ethyl isostearate, isopropyl isostearate, propylene glycol isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, and tri-2-ethylhexanoate. Examples include glyceryl ethylhexanoate, caprylic / capric triglyceride, glyceryl triisopalmitate, pentaerythritol tetra-2-ethylhexanoate, diisopropyl adipate, isocetyl octanoate, isostearyl octanoate, isocetyl isostearate, octyldodecyl isostearate, octyldodecyl dimethyloctanoate, isononyl isononanoate, pentaerythrityl tetraoctanoate, and pentaerythrityl tetraisostearate. 【0066】 Examples of high-grade fatty acids that are liquid at 25°C (for example, fatty acids with 8 to 22 carbon atoms) include isostearic acid and oleic acid. 【0067】 As for dimethylpolysiloxane other than the liquid components (A1) and (A2) at 25°C mentioned above, commercially available products can also be used. For example, a commercially available product is "DOWSIL SH200C FLUID 3000cSt" (kinematic viscosity at 25°C: 3000mm²). 2 / s), product name "DOWSIL SH200C FLUID 5000cSt" (Kinematic viscosity at 25℃: 5000mm 2 / s), "DOWSIL SH200 FLUID 10000cSt" (kinematic viscosity at 25℃: 10000mm 2 / s), "DOWSIL SH200 FLUID 12500cSt" (kinematic viscosity at 25℃: 12500mm 2 Examples include / s) (manufactured by Dow Chemical Company). 【0068】 The content of component (I) is preferably 3.0 to 20.0% by mass, and more preferably 5.0 to 15.0% by mass, in the oil-in-water emulsion cosmetic. A content of 3.0% by mass or more of component (I) allows for greater massage and penetration properties. A content of 20.0% by mass or less further suppresses the stickiness of component (I) itself. 【0069】 Furthermore, the above oil-in-water emulsion cosmetic composition may contain other ingredients besides those listed above (A1) to (I). These other ingredients may include, for example, lower alcohols such as ethanol, surfactants other than ingredient (F) (such as lecithin), antioxidants, preservatives, cooling agents, blood circulation-promoting agents, UV absorbers, plant extracts, fragrances, pH adjusters, etc., as appropriate depending on the purpose. 【0070】 The method for producing the above oil-in-water emulsion cosmetic is not particularly limited and can be produced by known methods. Examples of methods for producing the above oil-in-water emulsion cosmetic include adding the above-mentioned components and mixing them using known mixing equipment such as a disper mixer or a paddle mixer. 【0071】 The above oil-in-water emulsion cosmetic is preferably a skin cosmetic, such as a moisturizing cosmetic, a wrinkle-improving cosmetic, or a cosmetic used for massage. Particularly preferred is a cosmetic used during massage (a skin cosmetic applied during massage). The properties of the above oil-in-water emulsion cosmetic are not particularly limited, but examples include creams, lotions, and gels, with cream being particularly preferred. 【0072】 The above-mentioned oil-in-water emulsion cosmetic composition can be used, for example, as a cosmetic, quasi-drug, pharmaceutical, or general merchandise. The areas to which the above-mentioned oil-in-water emulsion cosmetic composition can be applied are not particularly limited, but examples include the face (forehead, around the eyes, corners of the eyes, cheeks, around the mouth, etc.) and the body (arms, elbows, back of the hands, fingertips, feet, knees, heels, neck, armpits, back, etc.). Among these, it is particularly preferred to use it on the face. 【0073】 The above oil-in-water emulsion cosmetic provides moderate slipperiness and resistance (massage properties) for a certain period of time required for massage after application (for example, 30 seconds or more, preferably 1 minute or more). Furthermore, it exhibits good penetration, and after a few minutes, the agent feels as if it has penetrated the skin, and the feeling of residue disappears. In addition, stickiness after penetration is reduced. For this reason, there is no need to rinse off or wash the face again after massaging with the above oil-in-water emulsion cosmetic. Therefore, the above oil-in-water emulsion cosmetic can be used without rinsing. 【0074】 [Massage method using oil-in-water emulsion cosmetics] Furthermore, as an embodiment of the present invention, a massage method using the above-mentioned oil-in-water emulsion cosmetic is provided. As described above, the above-mentioned oil-in-water emulsion cosmetic has massage properties, excellent penetration, and furthermore, stickiness is reduced after penetration. For this reason, unlike ordinary massage creams, the oil-in-water emulsion cosmetic does not need to be rinsed off in the massage method using the above-mentioned oil-in-water emulsion cosmetic. Accordingly, the present invention can provide a massage method using the above-mentioned oil-in-water emulsion cosmetic that does not require rinsing. 【0075】 The above massage method includes, for example, an application step of applying the oil-in-water emulsion cosmetic to the skin, and a massage step of massaging the area to which the oil-in-water emulsion cosmetic has been applied after the application step, but does not include a step of washing off the applied area after the massage step. In the massage step, for example, the area to which the oil-in-water emulsion cosmetic has been applied is massaged by moving the hands (palms and fingers) with a certain amount of pressure to loosen the muscles. [Examples] 【0076】 The present invention will be described in more detail below based on examples, but the present invention is not limited to these examples. Unless otherwise specified, the amounts listed in the table are the amounts of each component (i.e., the amount of the active ingredient in each raw material) and are expressed in "mass%". Note that "MONTANOV202" and "SIMULGEL NS" are indicated as raw material amounts. 【0077】 Examples 1-15, Comparative Examples 1-10 Oil-in-water emulsion cosmetics for the examples and comparative examples were prepared by conventional methods according to the compositions listed in Table 1 and subjected to the evaluation tests described below. The evaluation results are also shown in Table 1. 【0078】 The details of the ingredients listed in Table 1 are as follows: <Ingredients (A1)> Dimethylpolysiloxane a: Trade name "DOWSIL(TM) SH200C FLUID 350cSt", manufactured by Dow Chemical Company, kinematic viscosity: 350 mmHg 2 / s Dimethylpolysiloxane c: Trade name "DOWSIL(TM) SH200C FLUID 100cSt", manufactured by Dow Chemical Company, kinematic viscosity: 100 mmHg 2 / s <Ingredient (A2)> Dimethylpolysiloxane b: Trade name "DOWSIL(TM) SH200 60,000 cSt", manufactured by Dow Chemical Company, kinematic viscosity: 60,000 mmHg 2 / s Dimethylpolysiloxane d: Trade name "DOWSIL(TM) SH200 100,000 cSt", manufactured by Dow Chemical Company, kinematic viscosity: 100,000 mmHg 2 / s <Ingredient (B)> Mango seed oil: Product name "CroPure Mango Butter-SO-(JP)", manufactured by CRODA, semi-solid, melting point 26-36°C Shea butter: Product name "Star Shea Butter refind", manufactured by IMCD Benelux BV, semi-solid, melting point 30-38°C Astrocaryum murumuru seed butter: Trade name "Murumuru Butter", manufactured by IMCD Benelux BV, semi-solid, melting point approximately 34°C <Component (C)> Lauroyl glutamate di(octyldodecyl / phytosteryl / behenyl): Product name "Eldew PS-306R", manufactured by Ajinomoto Healthy Supply Co., Ltd. Hexa(hydroxystearic acid / stearic acid / rosinic acid)dipentaerythrityl: Product name "Cosmol 168ARV", manufactured by Nisshin Oillio Group Co., Ltd. Tetra(hydroxystearate / isostearate)dipentaerythrityl: Product name "Cosmol 168EV", manufactured by Nisshin Oillio Group Co., Ltd. Dipentaerythrityl hexahydroxystearate: Product name "Cosmol 168M", manufactured by Nisshin Oillio Group Co., Ltd. <Ingredient (D)> Glycerin DPG: Dipropylene glycol 1,3-Butylene glycol <Ingredients (F)> MONTANOV202: Product name "MONTANOV202", manufactured by SEPPIC SA, contains arachidyl glucoside as ingredient (F), and raw materials containing arachidyl alcohol and behenyl alcohol as ingredient (I). Polyoxyethylene sorbitan monostearate (20E.O.): Product name "Leodor TW-S120V", manufactured by Kao Corporation. Glyceryl stearate: Brand name "CUTINA GMS-V", manufactured by BASF. <Ingredients (G)> Polyacrylate Crosspolymer-6: Product name "SEPIMAX ZEN", manufactured by SEPPIC SA. Xanthan gum: Product name "Echo Gum T", manufactured by Sumitomo Pharma & Food Co., Ltd. SIMULGEL NS: Product name "SIMULGEL NS", manufactured by SEPPIC SA, contains (hydroxyethyl acrylate / sodium acryloyldimethyl taurate) copolymer as component (G), polysorbate 60 and sorbitan isostearate as component (F), squalane as component (I), and water as component (E). <Ingredients (H)> Vaseline: Product name "White Vaseline 1S", manufactured by Sonneborn. Microcrystalline wax: Product name "MULTIWAX W-835", manufactured by Sonneborn. <Component (I)> Squalane: Product name "NIKKOL Sugar Squalane", manufactured by Nippon Surfactant Industry Co., Ltd. Dimethylpolysiloxane e: Trade name "DOWSIL(TM) SH200 12,500 cSt", manufactured by Dow Chemical Company, kinematic viscosity: 12,500 mmHg 2 / s <Other ingredients> Potassium hydroxide: pH adjuster 【0079】 [evaluation] Approximately 2g of the above oil-in-water emulsion cosmetic was applied to the face by hand, and the applied area was massaged by applying pressure from the center outwards with the entire fingertips. Based on the feel after application, "massageability," "penetration," and "non-stickiness after application" were evaluated sensorily according to the following criteria. Each evaluation was performed by three professional evaluators. 【0080】 (1) Massage properties The following evaluation criteria were used to assess the sensation (appropriate slipperiness and resistance) and the duration of that sensation during the massage described above. ◎(Excellent): The massageable sensation lasts for more than 1 minute, and the resistance and slipperiness are good. ○ (Good): The massage-like feel lasts for more than 1 minute, but the application feel is slightly weak in terms of resistance or slightly less slippery. △(Practical): The duration of the massageable sensation is 20 seconds or more and less than 1 minute. × (Poor): The product has little or no slipperiness or resistance, making it unsuitable for massage. Alternatively, the duration of the massage-like feel is less than 20 seconds, making it unsuitable for massage. 【0081】 (2) Penetration feeling During the above massage, the time it took for the residual feeling of the agent to disappear was evaluated according to the following criteria. ◎(Excellent): The residue of the agent disappeared after 3 minutes of application. ○ (Good): The residue of the agent disappeared within 3 to 5 minutes after application. × (Poor): Even after 5 minutes had passed since application, a residue of the agent remained. 【0082】 (3) No stickiness after penetration During the massage described above, the skin was evaluated based on the following criteria, specifically by touching it with the hand after the residue of the product had disappeared (penetrated) and whether or not it felt sticky. ◎ (Excellent): Almost no stickiness is felt, or none at all. ○ (Good): Although it feels slightly sticky, it's not unpleasant to use even without rinsing. △ (Usable): Although it feels sticky, it's usable without needing to be rinsed off. × (Poor): It feels very sticky and is practically unpleasant to use without rinsing. 【0083】 [Table 1] 【0084】 The oil-in-water emulsion cosmetic composition of the examples was found to have emulsification stability, exhibit massage properties, have excellent penetration, and reduce stickiness after use. On the other hand, when component (D) was not included, the emulsification stability was poor, and it penetrated immediately after application, resulting in poor massage properties (Comparative Example 1). Furthermore, when either component (A1) or component (A2), or both components (A1) and (A2) were not included, stickiness after application could not be suppressed (Comparative Examples 2, 3, 8). In addition, when dimethylpolysiloxane, which does not correspond to component (A1) or component (A2), was used, stickiness after application could not be reduced (Comparative Example 10). Moreover, when component (B) was not included, when both components (B) and (C) were not included, and when both components (B) and (C) were not included and other solid oily components were used instead, the composition did not change with body temperature, resulting in poor penetration and inability to suppress stickiness after application (Comparative Examples 4, 5, 9). Furthermore, even when component (C) was not included, stickiness after application could not be suppressed (Comparative Examples 6, 7). 【0085】 Furthermore, Table 2 below shows examples of formulations of the present invention. 【0086】 [Table 2] 【0087】 Variations of the present invention are described below. [Note 1] An oil-in-water emulsion cosmetic containing the following ingredients (A1), (A2), (B), (C), (D), and (E). Component (A1): Kinematic viscosity at 25°C is 100-1000 mm² 2 Dimethylpolysiloxane / s Component (A2): Kinematic viscosity at 25°C is 30,000 to 100,000 mm² 2 Dimethylpolysiloxane / s Ingredient (B): Vegetable oils with a melting point of 25-50°C, and / or fatty acid triglycerides with a melting point of 25-50°C. Ingredient (C): At least one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, dipentaerythrityl hexa(hydroxystearate / stearate / rosinate), dipentaerythrityl tetra(hydroxystearate / isostearate), and dipentaerythrityl hexahydroxystearate. Ingredient (D): Polyhydric alcohol Ingredient (E): Water [Note 2] Furthermore, the oil-in-water emulsion cosmetic described in Appendix 1 contains the following ingredient (F). Ingredient (F): Nonionic surfactant [Note 3] Furthermore, the oil-in-water emulsion cosmetic composition described in Appendix 1 or 2 contains the following ingredient (G). Component (G): Water-soluble polymer [Note 4] Furthermore, an oil-in-water emulsion cosmetic as described in any one of the following appendices 1 to 3, containing the following ingredient (H). Component (H): An oily component other than component (B) that is solid at 25°C. [Note 5] Furthermore, an oil-in-water emulsion cosmetic as described in any one of the following appendices 1 to 4, containing the following ingredient (I). Ingredient (I): Oily component that is liquid at 25°C [Note 6] An oil-in-water emulsion cosmetic described in any one of the notes 1 to 5, which is used without rinsing. [Note 7] An oil-in-water emulsion cosmetic used for massage, as described in one of the notes 1 to 6. [Note 8] The process includes an application step of applying an oil-in-water emulsion cosmetic described in any one of Appendix 1 to 7 to the skin, and a massage step of massaging the area to which the oil-in-water emulsion cosmetic was applied after the application step. A massage method that does not include a step of washing off the applied area after the massage step.

Claims

[Claim 1] This is an oil-in-water emulsion cosmetic containing the following ingredients (A1), (A2), (B), (C), (D), (E), and (F), The oil-in-water emulsion cosmetic composition wherein the content of component (A1) is 0.5 to 6.0% by mass, the content of component (A2) is 0.05 to 1.5% by mass, the content of component (B) is 5.0 to 25.0% by mass, the content of component (C) is 0.5 to 4.0% by mass, and the content of component (D) is 5.0 to 30.0% by mass. Component (A1): Kinematic viscosity at 25°C is 100-1000 mm² ２ Dimethylpolysiloxane / s Component (A2): Kinematic viscosity at 25°C is 30,000 to 100,000 mm² ２ Dimethylpolysiloxane / s Component (B): Vegetable oils with a melting point of 25-50°C, and / or fatty acid triglycerides with a melting point of 25-50°C. Component (C): At least one compound selected from the group consisting of di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, dipentaerythrityl hexa(hydroxystearate / stearate / rosinate), dipentaerythrityl tetra(hydroxystearate / isostearate), and dipentaerythrityl hexahydroxystearate. Ingredient (D): Polyhydric alcohol Ingredient (E): Water Ingredient (F): Nonionic surfactant [Claim 2] Furthermore, the oil-in-water emulsion cosmetic composition according to claim 1, further comprising the following ingredient (G). Component (G): Water-soluble polymer [Claim 3] Furthermore, the oil-in-water emulsion cosmetic composition according to claim 1 or 2, further comprising the following component (H). Component (H): An oily component other than component (B) that is solid at 25°C. [Claim 4] Furthermore, the oil-in-water emulsion cosmetic composition according to claim 1 or 2, further comprising the following component (I). Ingredient (I): Oily component that is liquid at 25°C [Claim 5] An oil-in-water emulsion cosmetic according to claim 1 or 2, which is used without rinsing. [Claim 6] An oil-in-water emulsion cosmetic composition according to claim 1 or 2, for use during massage. [Claim 7] A step of applying the oil-in-water emulsion cosmetic composition according to claim 1 or 2 to the skin, The process also includes a massage step in which the area to which the oil-in-water emulsion cosmetic has been applied is massaged after the application step. A massage method that does not include a step of washing off the applied area after the massage step.

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