Water-in-oil emulsion cosmetic composition

The water-in-oil emulsion cosmetic composition addresses the challenge of insufficient spreadability in oil-based compositions by using specific components to enhance texture and spreadability, achieving improved application and emulsification.

JP2025168730APending Publication Date: 2025-11-12MANDOM CORP
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Patent Information

Application Number
JP2024073435
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-11-12

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Abstract

To provide a water-in-oil emulsion cosmetic composition that can impart a matte texture and a dry texture to an application object and can spread better than an oil-based cosmetic composition having the same properties.SOLUTION: The water-in-oil emulsion cosmetic composition of the present invention contains: an oil component (component A) that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, and is selected from the group consisting of animal and vegetable oils and hydrocarbon oils; a powder (component B); a nonionic surfactant (component C) that has a linear saturated alkyl chain containing 13 or more carbon atoms and has an HLB value of 2.8 or higher and 8.0 or lower; water (component D); and an oil component (component E) that is liquid at 25°C and is selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils, wherein a content of the component B is 5.0 to 50.0 mass%, a content of the component D is 15.0 to 50.0 mass%, and a content of the component E is 5.0 to 50.0 mass%.SELECTED DRAWING: None
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Description

[Technical Field]

[0001] The present invention relates to a water-in-oil emulsion cosmetic composition. [Background technology]

[0002] Known oily cosmetic compositions include hair oil, hair stick, hair clay, and hair balm.

[0003] For example, Patent Document 1 below discloses an oily hair cosmetic composition containing (A) 12-hydroxystearic acid, (B) one or more hydrocarbon oils, and (C) one or more silicone derivatives.

[0004] Furthermore, Patent Document 2 listed below discloses a hair balm containing a liquid oil (A) and a solidifying agent (B) that solidifies the liquid oil (A), in which the content of the liquid oil (A) is 70% to 99% by mass and the content of the solidifying agent (B) is 1% to 30% by mass. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-143454 [Patent Document 2] Japanese Patent Publication No. 2020-050613 Summary of the Invention [Problem to be solved by the invention]

[0006] Oil-based cosmetic compositions having moderately hard properties, such as hair balms and hair clays, are known. These oil-based cosmetic compositions contain an oil component that is solid at 25°C to impart hardness to the oil-based cosmetic composition.

[0007] However, it is difficult to sufficiently improve the spreadability of conventional oil-based cosmetic compositions that contain oily ingredients that are solid at 25°C.

[0008] Also known are oil-based cosmetic compositions that contain powder in addition to an oily component that is solid at 25° C. These oil-based cosmetic compositions can impart a matte texture (a texture with reduced gloss) and a dry texture (a texture with reduced stickiness) to objects to which they are applied, such as skin and hair, due to the powder.

[0009] However, it is particularly difficult to sufficiently improve the spreadability of conventional oil-based cosmetic compositions that contain an oil component that is solid at 25°C and a powder.

[0010] An object of the present invention is to provide a water-in-oil emulsion cosmetic composition that can impart a matte texture and a dry texture to an object to which it is applied, and that can spread more easily than an oil-based cosmetic composition having the same properties. [Means for solving the problem]

[0011] The present invention provides a water-in-oil emulsion cosmetic composition comprising the following components (A), (B), (C), (D), and (E), wherein the content of component (B) is 5.0% by mass or more and 50.0% by mass or less, the content of component (D) is 15.0% by mass or more and 50.0% by mass or less, and the content of component (E) is 5.0% by mass or more and 50.0% by mass or less.

[0012] Component (A): An oily component that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, selected from the group consisting of animal and vegetable oils and hydrocarbon oils. Component (B): Powder Component (C): A nonionic surfactant having a linear saturated alkyl chain with 13 or more carbon atoms and an HLB value of 2.8 or more and 8.0 or less. Ingredient (D): Water Component (E): An oily component that is liquid at 25°C and is selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils.

[0013] The water-in-oil emulsion cosmetic composition of the present invention preferably contains the following component (F).

[0014] Ingredient (F): Polyglyceryl polyricinoleate

[0015] The water-in-oil emulsion cosmetic composition of the present invention preferably contains the following component (G).

[0016] Ingredient (G): Phosphate surfactant with an HLB value of over 8.0 and 12.0 or less

[0017] In the water-in-oil emulsion cosmetic composition of the present invention, the component (E) preferably contains the following component (EX).

[0018] Ingredient (EX): An oily ingredient that is liquid at 25°C and is selected from the group consisting of vegetable oils and fatty acid triglycerides.

[0019] The water-in-oil emulsion cosmetic composition of the present invention preferably does not contain any non-volatile silicone oil that is liquid at 25°C, or contains it in an amount of 5.0 mass % or less.

[0020] The water-in-oil emulsion cosmetic composition of the present invention is preferably a hair cosmetic composition. [Effects of the Invention]

[0021] The water-in-oil emulsion cosmetic composition of the present invention comprises specific component (A), specific component (B), specific component (C), specific component (D), and specific component (E). In the water-in-oil emulsion cosmetic composition of the present invention, the content of component (B) is 5.0% by mass or more and 50.0% by mass or less, the content of component (D) is 15.0% by mass or more and 50.0% by mass or less, and the content of component (E) is 5.0% by mass or more and 50.0% by mass or less. Because the water-in-oil emulsion cosmetic composition of the present invention has the above-mentioned configuration, it is possible to impart a matte texture and a dry texture to the object to which it is applied, and it can spread more easily than an oil-based cosmetic composition having the same properties. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described in detail below.

[0023] The water-in-oil emulsion cosmetic composition of the present invention comprises an oily component that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, and is selected from the group consisting of animal and vegetable oils and hydrocarbon oils; a powder; a nonionic surfactant that has a linear saturated alkyl chain with 13 or more carbon atoms and an HLB value of 2.8 or higher and 8.0 or lower; water; and an oily component that is liquid at 25°C and is selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils.

[0024] In this specification, the above-mentioned "oil component that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, selected from the group consisting of animal and vegetable oils and hydrocarbon oils" may be referred to as "component (A)."

[0025] In this specification, the above-mentioned "powder" may be referred to as "component (B)".

[0026] In this specification, the above-mentioned "nonionic surfactant having a linear saturated alkyl chain with 13 or more carbon atoms and an HLB value of 2.8 or more and 8.0 or less" may be referred to as "component (C)".

[0027] In this specification, the above-mentioned "water" may be referred to as "component (D)."

[0028] In this specification, the above-mentioned "oil component that is liquid at 25°C and is selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils" may be referred to as "component (E)".

[0029] Therefore, the water-in-oil emulsion cosmetic composition of the present invention comprises component (A), component (B), component (C), component (D), and component (E).

[0030] In the water-in-oil emulsion cosmetic composition of the present invention, the content of component (B) is 5.0% by mass or more and 50.0% by mass or less, the content of component (D) is 15.0% by mass or more and 50.0% by mass or less, and the content of component (E) is 5.0% by mass or more and 50.0% by mass or less.

[0031] The water-in-oil emulsion cosmetic composition of the present invention has the above-mentioned constitution, and therefore can impart a matte texture and a dry texture to the object to which it is applied, and can spread more easily than an oil-based cosmetic composition having the same properties.

[0032] In the water-in-oil emulsion cosmetic composition of the present invention, component (B) is used in a specific content, and therefore it is possible to impart a matte texture and a dry texture to an object to which it is applied. When the water-in-oil emulsion cosmetic composition of the present invention is a hair cosmetic composition, it is possible to impart a matte texture and a dry texture to hair after styling. When the water-in-oil emulsion cosmetic composition of the present invention is a skin cosmetic composition, it is possible to impart a matte texture and a dry texture to skin after application.

[0033] Furthermore, in the water-in-oil emulsion cosmetic composition of the present invention, components (A) to (E) are used in combination, and components (B), (D), and (E) are used in specific amounts, so that the composition can spread more easily than oil-based cosmetic compositions having the same properties. For example, when the water-in-oil emulsion cosmetic composition of the present invention is a hair balm, it can spread more easily than conventional hair balms (oil-based cosmetic compositions). Furthermore, when the water-in-oil emulsion cosmetic composition of the present invention is a hair clay, it can spread more easily than conventional hair clay (oil-based cosmetic compositions).

[0034] The reason why the water-in-oil emulsion cosmetic composition of the present invention can spread better than an oil-based cosmetic composition having the same properties is presumed to be as follows.

[0035] In typical oil-based cosmetic compositions, hardness is imparted by the formation of a specific structure in an oil component that is liquid at 25°C, such as an oil component that is solid at 25°C. However, in oil-based cosmetic compositions, the size of these structures is relatively large, and it is thought that this does not allow for sufficient improvement in spreadability. In contrast, in the water-in-oil emulsion cosmetic composition of the present invention, hardness is imparted by the structure formed by the oil component that is solid at 25°C (component (A)), but the presence of the dispersed aqueous phase inhibits the formation of these structures to some extent, and the size of the structures formed is relatively small. For this reason, the water-in-oil emulsion cosmetic composition of the present invention can spread better than oil-based cosmetic compositions with the same properties.

[0036] It should be noted that the above mechanism is merely a hypothesis, and the reason why the water-in-oil emulsion cosmetic composition of the present invention can spread better than an oil-based cosmetic composition having the same properties is not limited to this.

[0037] Furthermore, the water-in-oil emulsion cosmetic composition of the present invention can have good formability, thereby improving the emulsification properties of the water-in-oil type.

[0038] The water-in-oil emulsion cosmetic composition of the present invention also has improved applicability, allowing the water-in-oil emulsion cosmetic composition taken up with the fingers to be easily spread on the palm, and also allowing the water-in-oil emulsion cosmetic composition to be easily and uniformly transferred to the hair or skin when applied to the hair or skin.

[0039] Furthermore, the water-in-oil emulsion cosmetic composition of the present invention can have good wash-off properties.

[0040] When the water-in-oil emulsion cosmetic composition of the present invention is a hair cosmetic composition, it can also provide good hair management, and when the water-in-oil emulsion cosmetic composition of the present invention is a skin cosmetic composition, it can also provide a moisturizing feel to the skin.

[0041] The water-in-oil emulsion cosmetic composition of the present invention may contain polyglyceryl polyricinoleate.

[0042] In this specification, the above-mentioned "polyglyceryl polyricinoleate" may be referred to as "component (F)."

[0043] The water-in-oil emulsion cosmetic composition of the present invention may contain a phosphate surfactant having an HLB value of more than 8.0 and not more than 12.0.

[0044] In this specification, the above-mentioned "phosphate surfactant having an HLB value of more than 8.0 and not more than 12.0" may be referred to as "component (G)".

[0045] The water-in-oil emulsion cosmetic composition of the present invention may contain components other than components (A) to (G).

[0046] The above components, for example, component (A), component (B), component (C), component (E), component (F), component (G), and other components, may each be used alone or in combination of two or more.

[0047] In this specification, "solid at 25°C" means a state that is not fluid at 25°C, and includes a state that is semi-solid (paste-like, etc.) at 25°C. On the other hand, "liquid at 25°C" means a state that is fluid at 25°C.

[0048] In this specification, the content of each component refers to the total content of all of the components contained in the water-in-oil emulsion cosmetic composition. For example, the content of component (A) refers to the total content of all components (A) in the water-in-oil emulsion cosmetic composition.

[0049] Hereinafter, each component used in the water-in-oil emulsion cosmetic composition of the present invention will be described in detail.

[0050] (Component (A)) Component (A) is an oily component that is solid at 25°C (at least one oily component that is solid at 25°C) and has a melting point of 65°C or higher and 100°C or lower, selected from the group consisting of animal and vegetable oils and hydrocarbon oils. Component (A) is an excipient. Use of component (A) can also improve hair manageability. Component (A) may be used alone or in combination of two or more types.

[0051] In this specification, of component (A), the above-mentioned "animal and vegetable oil" may be referred to as "component (A1)," and the above-mentioned "hydrocarbon oil" may be referred to as "component (A2)."

[0052] Therefore, component (A) is an oily component that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, selected from the group consisting of components (A1) and (A2).The melting point of component (A) is preferably 70°C or higher.

[0053] Component (A1) is an animal or vegetable oil that has a melting point of 65° C. or higher and 100° C. or lower and is solid at 25° C. The melting point of component (A1) is preferably 70° C. or higher.

[0054] Examples of the component (A1) include carnauba wax, sunflower seed wax, candelilla wax, rice bran wax, and hydrogenated castor oil.

[0055] Component (A2) is a hydrocarbon oil that is solid at 25° C. and has a melting point of 65° C. or higher and 100° C. or lower. The melting point of component (A2) is preferably 70° C. or higher.

[0056] Examples of the component (A2) include microcrystalline wax, paraffin wax, polyethylene wax, ceresin, ozokerite, and synthetic waxes (such as Fischer-Tropsch wax).

[0057] From the viewpoint of further reducing stickiness, it is preferable that component (A) contains component (A2). From the viewpoint of further increasing the durability of the styled hairstyle, it is more preferable that component (A) contains component (A1) and component (A2). In this case, it is possible to further improve styliability and further improve hair manageability.

[0058] The content of component (A1) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, and preferably 15.0% by mass or less, more preferably 10.0% by mass or less, and even more preferably 5.0% by mass or less. When the content of component (A1) is equal to or greater than the above-mentioned lower limit and equal to or less than the above-mentioned upper limit, the durability of the styled hairstyle can be further improved. When the content of component (A1) is equal to or less than the above-mentioned upper limit, stickiness can be effectively suppressed.

[0059] The content of component (A2) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 5.0% by mass or more, particularly preferably 7.0% by mass or more, and preferably 35.0% by mass or less, more preferably 30.0% by mass or less, and even more preferably 25.0% by mass or less. When the content of component (A2) is equal to or greater than the lower limit, shapability can be further improved and hair manageability can be further improved. When the content of component (A2) is equal to or less than the upper limit, spreadability can be further improved. Emulsion stability can also be further improved.

[0060] The content of component (A) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, even more preferably 7.0% by mass or more, particularly preferably 10.0% by mass or more, and preferably 35.0% by mass or less, more preferably 30.0% by mass or less, and even more preferably 25.0% by mass or less. When the content of component (A) is equal to or greater than the lower limit, shapability can be further improved and hair manageability can be further improved. When the content of component (A) is equal to or less than the upper limit, spreadability can be further improved. Furthermore, emulsion stability can be further improved.

[0061] (Component (B)) Component (B) is a powder. By using component (B), it is possible to impart a matte texture and a dry texture to the object to which it is applied. Furthermore, by using component (B), it is possible to adjust the feel of use of the water-in-oil emulsion cosmetic composition. Only one type of component (B) may be used, or two or more types may be used in combination.

[0062] Examples of component (B) include clay minerals, silica (silicic anhydride), diatomaceous earth (diatomaceous earth), calcium carbonate, magnesium carbonate, aluminum oxide, barium sulfate, red iron oxide, yellow iron oxide, black iron oxide, chromium oxide, ultramarine, Prussian blue, carbon black, titanium oxide, titanium dioxide, zinc oxide, cellulose powder, and starch (such as octenyl succinic acid corn starch ester metal salt).

[0063] The clay minerals may be natural or synthetic.

[0064] Examples of the clay minerals include kaolin group clay minerals, antigorite group clay minerals, pyrophyllite group clay minerals, mica group clay minerals, smectite group clay minerals, vermiculite group clay minerals, chlorite group clay minerals, and organically modified clay minerals.

[0065] Examples of the kaolin group clay minerals include kaolin, nacrite, dickite, and halloysite.

[0066] Examples of the antigorite group clay minerals include antigorite, amesite, and cronsteadite.

[0067] Examples of the pyrophyllite group clay minerals include pyrophyllite and talc.

[0068] Examples of the mica group clay minerals include illite, glauconite, celadonite, sericite, mica, muscovite, chrome muscovite, and biotite.

[0069] Examples of the smectite clay minerals include bentonite, montmorillonite, beidellite, nontonite, saponite, hectorite, and lucentite.

[0070] Examples of the vermiculite clay minerals include vermiculite.

[0071] Examples of the chlorite group clay minerals include chlorite.

[0072] The organically modified clay minerals include smectite clay minerals or vermiculite clay minerals that have been organically modified. Quaternary ammonium salt cationic surfactants are preferably used for the organic modification. Examples of the quaternary ammonium salt cationic surfactants include alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, and benzalkonium chloride.

[0073] Component (B) preferably contains a powder (at least one powder) selected from the group consisting of kaolin, silica, diatomaceous earth, talc, and bentonite, which makes it easier to impart hard properties to the water-in-oil emulsion cosmetic composition.

[0074] In this specification, the above-mentioned "powder selected from the group consisting of kaolin, silica, diatomaceous earth, talc, and bentonite" may be referred to as "component (B1)."

[0075] Therefore, it is preferable that component (B) contains component (B1).The water-in-oil emulsion cosmetic composition preferably contains component (B1).

[0076] The content of component (B1) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and preferably 50.0% by mass or less, and more preferably 40.0% by mass or less. When the content of component (B1) is above the above-mentioned lower limit and below the above-mentioned upper limit, a matte texture and a dry texture can be imparted to the object to which it is applied more satisfactorily. Furthermore, when the content of component (B1) is above the above-mentioned lower limit and below the above-mentioned upper limit, the properties of the water-in-oil emulsion cosmetic composition can be made hard.

[0077] In order to impart a matte texture and a dry texture to the object to which the composition is applied, the content of component (B) is 5.0 mass % or more and 50.0 mass % or less in 100 mass % of the water-in-oil emulsion cosmetic composition.

[0078] The content of component (B) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 10.0% by mass or more, and preferably 40.0% by mass or less. When the content of component (B) is above the above-mentioned lower limit and below the above-mentioned upper limit, a matte texture and a dry texture can be imparted to the object to which it is applied more satisfactorily. Furthermore, when the content of component (B) is above the above-mentioned lower limit and below the above-mentioned upper limit, the properties of the water-in-oil emulsion cosmetic composition can be made hard.

[0079] (Component (C)) Component (C) is a nonionic surfactant having a linear saturated alkyl chain with 13 or more carbon atoms and an HLB value of 2.8 or more and 8.0 or less. Component (C) is an emulsifier. By using component (C), a water-in-oil emulsion cosmetic composition can be obtained. Only one type of component (C) may be used, or two or more types may be used in combination.

[0080] Component (C) has a linear saturated alkyl chain having at least 13 carbon atoms. The number of carbon atoms in the linear saturated alkyl chain is preferably at least 15, more preferably at least 17, and preferably at most 23. When the number of carbon atoms is at least the above lower limit and at most the above upper limit, emulsification properties can be further improved.

[0081] Component (C) preferably does not have a branched saturated alkyl chain having 13 or more carbon atoms, and also preferably does not have an unsaturated alkyl chain having 13 or more carbon atoms. Component (C) more preferably does not have both a branched saturated alkyl chain having 13 or more carbon atoms and an unsaturated alkyl chain having 13 or more carbon atoms.

[0082] The HLB value of component (C) is 2.8 or more and 8.0 or less, preferably 3.0 or more, more preferably 3.2 or more, and preferably 7.0 or less, more preferably 6.0 or less. When the HLB value is equal to or more than the above lower limit and equal to or less than the above upper limit, the water-in-oil emulsification properties can be further improved.

[0083] Examples of component (C) include glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, and polyoxyethylene alkyl ethers.

[0084] Examples of the glycerin fatty acid esters include glyceryl behenate, glyceryl stearate, glyceryl palmitate, and glyceryl myristate. Examples of the polyglycerin fatty acid esters include diglyceryl monostearate, decaglyceryl tristearate, polyglyceryl-4 pentastearate, polyglyceryl-6 pentastearate, polyglyceryl-10 pentastearate, polyglyceryl-10 decastearate, and polyglyceryl-10 hepta(behenate / stearate). Examples of the sorbitan fatty acid esters include sorbitan stearate and sorbitan palmitate. Examples of the polyoxyethylene alkyl ethers include polyoxyethylene alkyl ethers having an average addition mole number of oxyethylene of 2 to 5 and an alkyl group carbon number of 14 to 22, and more specifically, POE(5) behenyl ether, POE(2) cetyl ether, and POE(2) stearyl ether.

[0085] Component (C) preferably contains a nonionic surfactant (at least one nonionic surfactant) selected from the group consisting of sorbitan stearate, glyceryl behenate, and glyceryl stearate, and more preferably contains a nonionic surfactant (at least one nonionic surfactant) selected from the group consisting of sorbitan stearate and glyceryl behenate. In this case, the emulsification properties of the water-in-oil type can be further improved.

[0086] In this specification, the above-mentioned "nonionic surfactant selected from the group consisting of sorbitan stearate, glyceryl behenate, and glyceryl stearate" may be referred to as "component (C1)."

[0087] Therefore, it is preferable that component (C) contains component (C1).The water-in-oil emulsion cosmetic composition preferably contains component (C1).

[0088] The content of component (C1) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and preferably 10.0% by mass or less, more preferably 7.0% by mass or less. When the content of component (C1) is equal to or greater than the above lower limit and equal to or less than the above upper limit, the water-in-oil emulsification properties can be further improved.

[0089] The content of component (C) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and preferably 10.0% by mass or less, more preferably 7.0% by mass or less. When the content of component (C) is equal to or greater than the above lower limit and equal to or less than the above upper limit, the emulsification properties of the water-in-oil emulsion cosmetic composition can be further improved.

[0090] (Component (D)) Component (D) is water. Component (D) is preferably purified water.

[0091] From the viewpoint of forming a water-in-oil emulsion system, the content of component (D) is 15.0% by mass or more and 50.0% by mass or less in 100% by mass of the water-in-oil emulsion cosmetic composition.

[0092] The content of component (D) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 20.0% by mass or more, more preferably 25.0% by mass or more, and preferably 45.0% by mass or less, more preferably 40.0% by mass or less. When the content of component (D) is equal to or greater than the above lower limit and equal to or less than the above upper limit, emulsion stability can be further improved.

[0093] (Component (E)) Component (E) is an oily component that is liquid at 25°C (at least one oily component that is liquid at 25°C) selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils. By using component (E) in combination with component (A), it is possible to improve spreadability. Furthermore, by using component (E), it is possible to improve hair manageability. Furthermore, by using component (E), it is possible to impart a good moisturizing feel to the skin. Only one type of component (E) may be used, or two or more types may be used in combination.

[0094] In this specification, of component (E), the above-mentioned "vegetable oil" may be referred to as "component (E1)," the above-mentioned "ester oil" may be referred to as "component (E2)," the above-mentioned "hydrocarbon oil" may be referred to as "component (E3)," and the above-mentioned "silicone oil" may be referred to as "component (E4)."

[0095] Therefore, component (E) is an oily component that is liquid at 25°C and is selected from the group consisting of components (E1), (E2), (E3) and (E4).

[0096] Component (E1) is a vegetable oil that is liquid at 25°C.

[0097] Examples of component (E1) include avocado oil, argan oil, olive oil, rice bran oil, soybean oil, corn oil, castor oil, grape seed oil, kukui nut oil, jojoba oil, macadamia nut oil, crambe abyssinica seed oil, eucalyptus oil, coconut oil, safflower oil, palm oil, palm kernel oil, almond oil, rosehip oil, camellia oil, kiwi fruit seed oil, camellia oil, apricot kernel oil, sesame oil, soybean oil, hazelnut oil, peppermint oil, carrot oil, lavender oil, meadowfoam oil, and sunflower oil.

[0098] Component (E2) is an ester oil that is liquid at 25°C.

[0099] Examples of component (E2) include fatty acid triglycerides, isononyl isononanoate, isopropyl myristate, ethylhexyl palmitate (octyl palmitate), cetyl ethylhexanoate, isodecyl isononanoate, hexyl laurate, isoamyl laurate, diisobutyl adipate, ethylhexyl isononanoate (octyl isononanoate), isodecyl isononanoate, octyldodecyl myristate, diethylhexyl succinate, octyldodecyl oleate, octyldodecyl isostearate, diisostearyl malate, diethylhexyl sebacate, pentaerythritol tetra-2-ethylhexanoate, pentaerythrityl tetraoctanoate, and pentaerythrityl tetraisostearate.

[0100] The fatty acid triglycerides (liquid fatty acid triglycerides at 25°C) include glyceryl tri-2-ethylhexanoate (triethylhexanoin), glyceryl tricaprylate, glyceryl tricaprate, glyceryl triundecylate, glyceryl tristearate, glyceryl triisostearate, glyceryl tripalmitate, glyceryl triundecanoate, glyceryl tri-2-heptylundecanoate, glyceryl tribehenate, glyceryl trimyristate, glyceryl trilaurate, and glyceryl trioleate. Glyceryl Trilinoleate, Glyceryl Tripalmitoleate, Glyceryl Triacetylhydroxystearate, Glyceryl Triacetylricinoleate, Glyceryl Trihydroxystearate, Caprylic / Capric Triglyceride, Caprylic / Capric / Myristic / Stearic Triglyceride, Caprylic / Capric / Isostearic / Adipic Triglyceride, Caprylic / Capric / Lauric Triglyceride, Caprylic / Capric / Linoleic Triglyceride glyceryl tri(caprylic / capric / stearic acid), glyceryl tri(tallowate), glyceryl tri(tallowate / mink oil / cod liver oil), glyceryl tri(mink oil / palmitate), glyceryl tri(coconut oil), glyceryl tri(lanolinate), glyceryl tri(ricinoleate / caproate / caprylic acid / capric acid), C10-18 triglycerides, C12-18 triglycerides, hydrogenated C12-18 triglycerides, C12-20 triglycerides Examples of glyceryl are glyceryl lyceryl, C18-36 triglyceride, C10-40 tri-branched glyceryl, C12-31 tri-branched glyceryl, hydrogenated rosin / diisostearate glyceryl, triglyceride palmate / palm kernelate / oliveate / macadamiate / rapeseed acid glyceryl, triglyceride castorate / olive acid glyceryl, triglyceride behenate / isostearate / eicosanedioate, and triglyceride mink acid / palmitate.

[0101] Component (E3) is a hydrocarbon oil that is liquid at 25°C.

[0102] Examples of component (E3) include α-olefin oligomer, squalane (synthetic squalane, vegetable squalane), squalene, liquid isoparaffin, liquid paraffin (mineral oil), (C13-15) alkane, hydrogenated polyisobutene, hydrogenated polydecene, light isoparaffin (isododecane), light liquid isoparaffin, and liquid isoparaffin.

[0103] Component (E4) is a silicone oil that is liquid at 25°C.

[0104] Examples of component (E4) include methylpolysiloxane, methylphenylsiloxane, highly polymerized methylpolysiloxane, poly(oxyethylene-oxypropylene)methylpolysiloxane copolymer, cyclopentasiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyoxyethylene-methylpolysiloxane copolymer, aminoethylaminopropylmethylsiloxane-dimethylpolysiloxane copolymer, and dimethiconol.

[0105] Component (E) preferably contains an oily component that is liquid at 25°C (at least one oily component that is liquid at 25°C) selected from the group consisting of vegetable oils and fatty acid triglycerides, more preferably a fatty acid triglyceride, and even more preferably a vegetable oil and a fatty acid triglyceride. In this case, spreadability can be improved and stickiness can be further reduced.

[0106] In this specification, the above-mentioned "oil component that is liquid at 25°C and is selected from the group consisting of vegetable oils and fatty acid triglycerides" may be referred to as "component (EX)".

[0107] Therefore, it is preferable that component (E) contains component (EX).The water-in-oil emulsion cosmetic composition preferably contains component (EX).

[0108] The content of component (EX) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 5.0% by mass or more, and preferably 40.0% by mass or less, more preferably 30.0% by mass or less. When the content of component (EX) is equal to or greater than the above lower limit and equal to or less than the above upper limit, the spreadability can be further improved. In addition, the manageability of hair can be further improved.

[0109] The content of the vegetable oil (component (E1): vegetable oil that is liquid at 25°C) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, even more preferably 3.0% by mass or more, and preferably 20.0% by mass or less, more preferably 10.0% by mass or less.

[0110] The content of the fatty acid triglyceride (a fatty acid triglyceride that is liquid at 25°C) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 5.0% by mass or more, and preferably 40.0% by mass or less, more preferably 30.0% by mass or less.

[0111] The content of component (E) in 100% by mass of the water-in-oil emulsion cosmetic composition is 5.0% by mass or more and 50.0% by mass or less. The content of component (E) in 100% by mass of the water-in-oil emulsion cosmetic composition is preferably 10.0% by mass or more and preferably 30.0% by mass or less. When the content of component (E) is equal to or more than the above lower limit and equal to or less than the above upper limit, spreadability can be further improved. In addition, hair manageability can be further improved. When the content of component (E) is equal to or less than the above upper limit, shapability can be further improved.

[0112] From the viewpoint of enhancing hair styling power, the water-in-oil emulsion cosmetic composition preferably does not contain or contains 5.0% by mass or less of a non-volatile silicone oil that is liquid at 25° C. When the water-in-oil emulsion cosmetic composition contains a non-volatile silicone oil that is liquid at 25° C., the content of the non-volatile silicone oil that is liquid at 25° C. in 100% by mass of the water-in-oil emulsion cosmetic composition is preferably 5.0% by mass or less, and more preferably 3.0% by mass or less. Note that non-volatile silicone oil refers to a silicone oil that is not volatile at 25° C.

[0113] (Component (F)) Component (F) is polyglyceryl polyricinoleate. The water-in-oil emulsion cosmetic composition preferably contains component (F). Use of component (F) can enhance the dispersion stability of the water-in-oil emulsion cosmetic composition. More specifically, use of component (F) can effectively suppress sedimentation of emulsion particles (aqueous phase). This can improve the handleability, etc., of the water-in-oil emulsion cosmetic composition during the process of filling it into a container. Only one type of component (F) may be used, or two or more types may be used in combination.

[0114] The average number of moles of glycerin added in component (F) is preferably 2 or more, more preferably 3 or more, and preferably 10 or less, more preferably 7 or less.

[0115] Examples of component (F) include polyglyceryl-3 polyricinoleate, polyglyceryl-5 polyricinoleate, and polyglyceryl-6 polyricinoleate.

[0116] The content of component (F) in 100% by mass of the water-in-oil emulsion cosmetic composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and preferably 10.0% by mass or less, more preferably 5.0% by mass or less. When the content of component (F) is equal to or greater than the above lower limit and equal to or less than the above upper limit, the dispersion stability of the water-in-oil emulsion cosmetic composition can be further improved.

[0117] (Component (G)) Component (G) is a phosphate surfactant having an HLB value of more than 8.0 and not more than 12.0. The water-in-oil emulsion cosmetic composition preferably contains component (G). The use of component (G) can further enhance emulsion stability. Component (G) may be used alone or in combination of two or more types.

[0118] The HLB value of component (G) is preferably 8.1 or more, more preferably 9.0 or more, and preferably 11.5 or less.

[0119] Examples of component (G) include monoalkyl phosphate salts such as sodium lauryl phosphate, sodium cetyl phosphate, and diethanolamine cetyl phosphate; and polyoxyethylene alkyl ether phosphate salts such as polyoxyethylene lauryl ether sodium phosphate, polyoxyethylene cetyl ether sodium phosphate, polyoxyethylene oleyl ether sodium phosphate, polyoxyethylene alkylphenyl ether sodium phosphate, and polyoxyethylene alkylphenyl ether triethanolamine phosphate.

[0120] Component (G) preferably contains a phosphate surfactant (at least one phosphate surfactant) selected from the group consisting of alkyl phosphate esters and / or salts thereof, and polyoxyalkylene alkyl ether phosphates and / or salts thereof.

[0121] In this specification, the above-mentioned "phosphate surfactant selected from the group consisting of alkyl phosphate esters and / or salts thereof, and polyoxyalkylene alkyl ether phosphates and / or salts thereof" may be referred to as "component (G1)," the above-mentioned "alkyl phosphate esters and / or salts thereof" may be referred to as "component (G11)," and the above-mentioned "polyoxyalkylene alkyl ether phosphates and / or salts thereof" may be referred to as "component (G12)."

[0122] Therefore, component (G) preferably includes component (G1). Component (G1) is a phosphate surfactant selected from the group consisting of components (G11) and (G12). The water-in-oil emulsion cosmetic composition preferably includes component (G1).

[0123] Component (G11) may be an alkyl phosphate ester, an alkyl phosphate ester salt, or both an alkyl phosphate ester and an alkyl phosphate ester salt.

[0124] The alkyl phosphate ester is a compound in which the hydrogen atom of one or more of the three hydroxyl groups of phosphoric acid is substituted with an alkyl group. The alkyl phosphate ester may be a monoester, a diester, a triester, or a mixture of two or more of these.

[0125] The number of carbon atoms in the alkyl group of the ester moiety in the alkyl phosphate ester is preferably 12 or more, more preferably 14 or more, and preferably 36 or less, more preferably 30 or less, and even more preferably 22 or less. The alkyl group of the ester moiety in the alkyl phosphate ester may be linear or branched, but is preferably linear.

[0126] Examples of the alkyl phosphate salt include inorganic salts, organic amine salts, and basic amino acid salts. Examples of the inorganic salt include alkali metal salts such as sodium salts and potassium salts; alkaline earth metal salts such as magnesium salts and calcium salts; ammonium salts; aluminum salts; and zinc salts. Examples of the organic amine salt include monoethanolamine salts, diethanolamine salts, and triethanolamine salts. Examples of the basic amino acid salt include arginine salts and lysine salts.

[0127] Examples of component (G11) include lauryl phosphate, sodium lauryl phosphate, disodium lauryl phosphate, diethanolamine lauryl phosphate, triethanolamine lauryl phosphate, potassium lauryl phosphate, cetyl phosphate, potassium cetyl phosphate, triethanolamine cetyl phosphate, and diethanolamine cetyl phosphate.

[0128] Commercially available products of component (G11) include those under the trade name "Hostene HLP" (manufactured by Nikko Chemicals Co., Ltd.) and those under the trade name "Hostaphat CC" (manufactured by Clariant Japan Co., Ltd.).

[0129] Component (G12) may be a polyoxyalkylene alkyl ether phosphate, may be a polyoxyalkylene alkyl ether phosphate salt, or may be both a polyoxyalkylene alkyl ether phosphate and a polyoxyalkylene alkyl ether phosphate salt.

[0130] The polyoxyalkylene alkyl ether phosphate is a phosphoric acid ester of an ether (polyoxyalkylene alkyl ether) composed of a polyoxyalkylene residue and a monovalent saturated aliphatic alcohol residue. Examples of oxyalkylenes constituting the polyoxyalkylene residue in the polyoxyalkylene alkyl ether include oxyalkylenes having 2 to 4 carbon atoms, such as oxyethylene, oxypropylene, and oxybutylene. The polyoxyalkylene is preferably polyoxyethylene. The polyoxyalkylene may contain only one type of oxyalkylene, or may contain two or more types of oxyalkylenes.

[0131] The monovalent saturated aliphatic alcohol residue constituting the polyoxyalkylene alkyl ether contains a monovalent saturated aliphatic hydrocarbon group. Examples of the monovalent saturated aliphatic hydrocarbon group include saturated aliphatic hydrocarbon groups having 10 to 36 carbon atoms (preferably 12 to 18 carbon atoms), such as lauryl, cetyl, and stearyl. The monovalent saturated aliphatic hydrocarbon group is preferably linear.

[0132] The polyoxyalkylene alkyl ether phosphate may be a monoester, a diester, a triester, or a mixture of two or more of these.

[0133] Examples of the salts of the polyoxyalkylene alkyl ether phosphate include inorganic salts, organic amine salts, and basic amino acid salts. Examples of the inorganic salts, organic amine salts, and basic amino acid salts include the salts exemplified in the section for component (G11) above.

[0134] Examples of component (G12) include polyoxyalkylene cetearyl ether phosphates such as triceteareth-4 phosphate and triceteareth-5 phosphate; polyoxyalkylene alkyl (C12-15) ether phosphates such as di(C12-15) pareth-4 phosphate, di(C12-15) pareth-6 phosphate and di(C12-15) pareth-8 phosphate; and salts thereof.

[0135] Component (G) preferably contains a phosphate surfactant (at least one phosphate surfactant) selected from the group consisting of triceteareth-4 phosphate, triceteareth-5 phosphate, di(C12-15) pareth-4 phosphate, di(C12-15) pareth-6 phosphate, and salts thereof. Component (G1) preferably contains a phosphate surfactant (at least one phosphate surfactant) selected from the group consisting of triceteareth-4 phosphate, triceteareth-5 phosphate, di(C12-15) pareth-4 phosphate, di(C12-15) pareth-6 phosphate, and salts thereof.

[0136] The content of component (G1) in the water-in-oil emulsion cosmetic composition (100% by mass) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, and preferably 10.0% by mass or less, more preferably 5.0% by mass or less. When the content of component (G1) is equal to or greater than the above-mentioned lower limit and equal to or less than the above-mentioned upper limit, emulsion stability can be further improved.

[0137] In 100% by mass of the above water-in-oil type emulsified cosmetic composition, the content of component (G) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.7% by mass or more, preferably 10.0% by mass or less, and more preferably 5.0% by mass or less. When the content of component (G) is not less than the above lower limit and not more than the above upper limit, the emulsion stability can be further enhanced.

[0138] (Other components) The above water-in-oil type emulsified cosmetic composition may contain other components in addition to the above components (A) to (G). Examples of the above other components include an oily component that is solid at 25°C and different from component (A), an oily component that is liquid at 25°C and different from component (E), surfactants (anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, etc.) that are different from both component (C) and component (G), polyhydric alcohols, thickeners, humectants, bactericides, pearlescent agents, anti-inflammatory agents, cooling agents, pH adjusters, fragrances, ultraviolet absorbers, antioxidants, sequestering agents (chelating agents), film-forming polymers, dyes, pigments, vitamins, amino acids, astringents, whitening agents, animal and plant extracts, acids, and alkalis. Each of the above other components may be used alone or two or more thereof may be used.

[0139] <An oily component that is solid at 25°C and different from component (A)> The above water-in-oil type emulsified cosmetic composition preferably contains an oily component that is solid at 25°C and different from component (A) (hereinafter sometimes referred to as an oily component (X) that is solid at 25°C). The oily component (X) that is solid at 25°C is an oily component that is solid at 25°C and has a melting point of less than 65°C or more than 100°C. The oily component (X) that is solid at 25°C preferably is an oily component that is solid at 25°C and has a melting point of less than 65°C.

[0140] Examples of the oily component (X) that is solid at 25°C include petrolatum, stearyl alcohol, shea butter, mango butter, astrocaryum murumuru seed butter, and beeswax.

[0141] <A hydrophilic surfactant having an HLB value exceeding 12.0> From the viewpoint of further enhancing the emulsion stability of water-in-oil emulsions, it is preferable that the water-in-oil emulsion cosmetic composition contains a small amount of a hydrophilic surfactant with an HLB value exceeding 12.0 (hereinafter, sometimes referred to as hydrophilic surfactant (X)). It is preferable that the water-in-oil emulsion cosmetic composition does not contain a hydrophilic surfactant (X) or contains a hydrophilic surfactant (X) in an amount of 3.0% by mass or less. When the water-in-oil emulsion cosmetic composition contains a hydrophilic surfactant (X), the content of the hydrophilic surfactant (X) in 100% by mass of the water-in-oil emulsion cosmetic composition is preferably 3.0% by mass or less, more preferably 2.0% by mass or less, and even more preferably 1.0% by mass or less. In particular, if the content of the hydrophilic surfactant (X) in a water-in-oil emulsion cosmetic composition is greater than the content of surfactants with an HLB value of 12.0 or less, the water-in-oil emulsion state may not be maintained.

[0142] (Other details of the water-in-oil emulsion cosmetic composition) The method for producing the water-in-oil emulsion cosmetic composition is not particularly limited, and any known method for producing a water-in-oil emulsion cosmetic composition can be used. Examples of methods for producing the water-in-oil emulsion cosmetic composition include a method in which the components are mixed and emulsified while being heated to obtain a mixture, and then the mixture is cooled and solidified. Examples of methods for mixing the components include a method using a stirring device such as a disper mixer or a paddle mixer.

[0143] The water-in-oil emulsion cosmetic composition can be used, for example, in a form filled in a container. Examples of the container include a tube container, a dispenser container (pump container), a jar container, and a propelling container. The container is preferably a jar container.

[0144] The use of the water-in-oil emulsion cosmetic composition is not particularly limited. Examples of uses of the water-in-oil emulsion cosmetic composition include hair cosmetics such as hair styling agents and after-bath treatments; and skin cosmetics such as moisturizing cosmetics (for hands, body, face, scalp, etc.). The water-in-oil emulsion cosmetic composition is, for example, a hair cosmetic composition or a skin cosmetic composition.

[0145] The water-in-oil emulsion cosmetic composition is preferably a hair cosmetic composition, since it can impart a matte texture and a dry texture to hair after styling and can make hair well-manageable. The water-in-oil emulsion cosmetic composition can also be a skin cosmetic composition, since it can impart a matte texture and a dry texture to skin after application and can impart a moisturizing feel. Furthermore, the water-in-oil emulsion cosmetic composition may be a cosmetic composition that can be used in combination as both a hair cosmetic and a skin cosmetic. As described above, the water-in-oil emulsion cosmetic composition can be applied to hair as a hair cosmetic, and can also be applied to skin for the purpose of moisturizing, etc.

[0146] The properties of the water-in-oil emulsion cosmetic composition are not particularly limited. The properties of the water-in-oil emulsion cosmetic composition may be gel-like, balm-like, clay-like, solid, or other properties. The properties of the water-in-oil emulsion cosmetic composition are preferably balm-like or clay-like. The water-in-oil emulsion cosmetic composition is preferably a balm-like water-in-oil emulsion cosmetic composition (so-called hair balm), and is also preferably a clay-like water-in-oil emulsion cosmetic composition (so-called hair clay). [Example]

[0147] The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to the following examples.

[0148] In the examples and comparative examples, the following components were used.

[0149] (Component (A)) Carnauba wax (melting point: 88°C) Sunflower seed wax (melting point: 78°C) Rice bran wax (melting point: 78°C) Candelilla wax (melting point: 70°C) Microcrystalline wax 1 (Nippon Seiro Co., Ltd. "HI-MIC1090", melting point: 88°C) Microcrystalline wax 2 (Sonneborn "MULTIWAX W-835", melting point: 76°C) Paraffin wax 1 (melting point: 73°C)

[0150] (Component (B)) Kaolin silica

[0151] (Component (C)) Sorbitan stearate (HLB value: 4.5) Glyceryl behenate (HLB value: 3.4) Polyoxyethylene (5E.O.) Behenyl Ether (HLB value: 7.0) Glyceryl stearate (HLB value: 3.0)

[0152] (Component (D)) purified water

[0153] (Component (E)) Ingredient (E) equivalent to ingredient (EX): Glyceryl tri-2-ethylhexanoate Caprylic / Capric Triglyceride Castor oil Cranberry Abyssinica Seed Oil argan oil jojoba oil

[0154] Ingredient (E) not corresponding to ingredient (EX): Mineral oil Hydrogenated Polyisobutene Isononyl isononanoate Isopropyl myristate

[0155] (Component (F)) Polyglyceryl-5 Polyricinoleate Polyglyceryl-6 Polyricinoleate Polyglyceryl-3 Polyricinoleate

[0156] (Component (G)) Triceteareth-4 phosphate (HLB value: 10.0-11.0)

[0157] (others) Vaseline (oil-based ingredient that is solid at 25°C) Paraffin wax 2 (melting point: 53°C) Stearyl alcohol (solid oil component at 25°C) Shea butter (solid oil component at 25°C) Sodium dioleth-8 phosphate (HLB value: 12.5) PEG-250 distearate (HLB value: 19.2) Triisostearin POE (20) glyceryl (HLB value: 8.0) Ceteth-40 (HLB value: 20.0) Glycerin (polyhydric alcohol) Dipropylene glycol (polyhydric alcohol)

[0158] (Examples 1 to 16 and Comparative Examples 1 and 2) The ingredients shown in Tables 1 to 3 below were blended (combination units are mass %), and the ingredients were mixed and emulsified while heating to prepare a mixed liquid. 50 g of the resulting mixed liquid was poured into a jar (cylindrical, bottom diameter 45 mm, height 45 mm). After pouring, the mixed liquid was allowed to stand for 24 hours to cool and solidify, thereby preparing a water-in-oil emulsion cosmetic composition. The blend amounts in the tables (combination amounts relative to 100% by mass of the water-in-oil emulsion cosmetic composition) are shown as the pure blend amount (unit: mass %).

[0159] The water-in-oil emulsion cosmetic compositions prepared in Examples 1 to 16 were clay-like water-in-oil emulsion cosmetic compositions (hair clay). In Comparative Example 1, the composition could not be emulsified, so further evaluations were not performed. In Comparative Example 2, the composition could not be emulsified into a water-in-oil emulsion, and an oil-in-water emulsion cosmetic composition was obtained, so further evaluations were not performed.

[0160] (Comparative Example 1: Oil-based cosmetic composition (hair clay)) The ingredients shown in Table 4 below were blended (blending units are mass%) and heated and mixed to prepare a mixed liquid. 50 g of the resulting mixed liquid was poured into a jar (cylindrical, bottom diameter 45 mm, height 45 mm). After pouring, the mixed liquid was allowed to stand for 24 hours to cool and solidify, thereby preparing an oil-based cosmetic composition (hair clay). The blend amounts in the table (blending amounts relative to 100% by mass of the oil-based cosmetic composition) are shown as pure blend amounts (unit: mass%).

[0161] (evaluation) The obtained water-in-oil emulsion cosmetic composition and oil-based cosmetic composition were evaluated as follows: Test Examples 1 to 3 were evaluated by a panel of three experts, who discussed and decided the evaluation results.

[0162] (Test Example 1: Stretch) The resulting water-in-oil emulsion cosmetic compositions were evaluated for their good spreadability compared to oil-based cosmetic compositions having the same properties. That is, the water-in-oil emulsion cosmetic compositions (hair clay) prepared in Examples 1 to 16 were compared with the oil-based cosmetic composition (hair clay) prepared in Comparative Example 1.

[0163] Approximately 1 g of the obtained cosmetic composition was placed in the palm of the hand, and the palms of both hands were rubbed together to spread it on the palms. The ease of spreading was evaluated according to the following criteria.

[0164] <Evaluation criteria for stretch> ◯ (Good): Compared to Comparative Example 1, spread is clearly better. × (bad): Compared to Comparative Example 1, the spreadability is only slightly better or is equal to or less than that of Comparative Example 1.

[0165] (Test Example 2: Matte texture and dry texture (hair after styling)) Approximately 1 g of the obtained water-in-oil emulsion cosmetic composition was placed in the palm of the hand, spread over the palm, and then applied to a short-haired wig (manufactured by Eucalyptus Japan Co., Ltd.), which was then styled so that the bangs were raised backward. The hair of the wig was visually observed immediately after styling. The hair of the wig was also touched with the hand immediately after styling. The matte texture and dry texture were evaluated according to the following criteria.

[0166] <Evaluation criteria for matte texture and dry texture (hair after styling)> ◯ (Good): The hair is not shiny after styling, and the hair feels completely or almost completely sticky after styling (it has a matte and dry texture). × (bad): The hair after styling is clearly shiny, or the hair after styling is clearly sticky (either a matte texture or a dry texture is not imparted).

[0167] (Test Example 3: Application to skin) After styling the hair in Test Example 2, the water-in-oil emulsion cosmetic composition remaining on the palm was spread over the back of the hand, and the water-in-oil emulsion cosmetic composition obtained in the example provided a moist and good feeling of moisturization. Furthermore, the skin after application was free of any shininess and felt almost no or no stickiness.

[0168] The compositions and results are shown in Tables 1 to 4 below.

[0169] [Table 1]

[0170] [Table 2]

[0171] [Table 3]

[0172] [Table 4]

[0173] Formulation examples of the water-in-oil emulsion cosmetic composition of the present invention are shown below.

[0174] (Formulation example 1: Hair clay) Carnauba wax 1.0% by mass Rice bran wax 1.0% by mass Microcrystalline wax (melting point: 88°C) 5.0% by mass Paraffin wax (melting point: 73°C) 3.0% by mass Glyceryl tri-2-ethylhexanoate 8.0% by mass Castor oil 4.0% by mass Sorbitan stearate 2.0% by mass Polyglyceryl-5 polyricinoleate 2.0% by mass Mineral oil balance Triceteareth-4 phosphate 1.5% by mass PEG-250 distearate 0.3% by mass Kaolin 30.0% by mass Dipropylene glycol 3.0% by mass Tocopherol acetate 0.5% by mass Phenoxyethanol 0.8% by mass 1,2-pentanediol 0.8% by mass Fragrance (appropriate amount) Water 30.0% by mass Total 100.0% by mass

[0175] (Formulation example 2: Hair clay) Carnauba wax 1.0% by mass Sunflower wax 1.0% by mass Microcrystalline wax (melting point: 88°C) 5.0% by mass Paraffin wax (melting point: 73°C) 3.0% by mass Glyceryl tri-2-ethylhexanoate 8.0% by mass Argan oil 1.0% by mass Sorbitan stearate 2.0% by mass Polyglyceryl-5 polyricinoleate 2.0% by mass Isododecane 3.0% by mass Mineral oil balance Triceteareth-4 phosphate 1.5% by mass PEG-250 distearate 0.3% by mass Kaolin 20.0% by mass Mica 5.0% by mass Glycerin 3.0% by mass Tocopherol acetate 0.5% by mass Phenoxyethanol 0.8% by mass 1,2-octanediol 0.3% by mass Fragrance (appropriate amount) Water 30.0% by mass Total 100.0% by mass

[0176] (Formulation example 3: Hair clay) Carnauba wax 1.0% by mass Sunflower wax 1.0% by mass Microcrystalline wax (melting point: 88°C) 2.0% by mass Paraffin wax (melting point: 73°C) 3.0% by mass Glyceryl tri-2-ethylhexanoate 8.0% by mass Sorbitan stearate 2.0% by mass Polyglyceryl-5 polyricinoleate 2.0% by mass Isododecane 3.0% by mass Mineral oil balance Triceteareth-4 phosphate 1.5% by mass Kaolin 35.0% by mass Mica 5.0% by mass Glycerin 3.0% by mass Tocopherol acetate 0.5% by mass Phenoxyethanol 0.8% by mass Propylene glycol 0.3% by mass Fragrance (appropriate amount) Water 30.0% by mass Total 100.0% by mass

Claims

1. The composition includes the following components A, B, C, D, and E: The content of the component B is 5.0% by mass or more and 50.0% by mass or less, The content of the component D is 15.0% by mass or more and 50.0% by mass or less, A water-in-oil emulsion cosmetic composition, wherein the content of component E is 5.0% by mass or more and 50.0% by mass or less. Component A: an oily component that is solid at 25°C and has a melting point of 65°C or higher and 100°C or lower, selected from the group consisting of animal and vegetable oils and hydrocarbon oils Component B: Powder Component C: a nonionic surfactant having a linear saturated alkyl chain with 13 or more carbon atoms and an HLB value of 2.8 or more and 8.0 or less. Component D: Water Component E: an oily component that is liquid at 25°C and is selected from the group consisting of vegetable oils, ester oils, hydrocarbon oils, and silicone oils

2. 2. The water-in-oil emulsion cosmetic composition according to claim 1, comprising the following component F: Ingredient F: Polyglyceryl polyricinoleate

3. 3. The water-in-oil emulsion cosmetic composition according to claim 1, further comprising the following component G: Component G: Phosphate surfactant with an HLB value of more than 8.0 and not more than 12.0

4. 3. The water-in-oil emulsion cosmetic composition according to claim 1, wherein the component E comprises the following component EX: Component EX: An oily component that is liquid at 25°C and is selected from the group consisting of vegetable oils and fatty acid triglycerides.

5. 3. The water-in-oil emulsion cosmetic composition according to claim 1, which does not contain any non-volatile silicone oil that is liquid at 25°C or contains 5.0% by mass or less of such non-volatile silicone oil.

6. 3. The water-in-oil emulsion cosmetic composition according to claim 1, which is a hair cosmetic composition.

Citation Information

Patent Citations

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