Water-in-oil emulsion cosmetic composition

Abstract

Provided is a water-in-oil type emulsion cosmetic composition capable of providing better ductility than an oily cosmetic composition having the same properties. A water-in-oil type emulsion cosmetic composition according to the present invention comprises: an oily component (component A) that is solid at 25 DEG C and that has a melting point of 65-100 DEG C (inclusive), said oily component being selected from the group consisting of animal and vegetable oils and hydrocarbon oils; an oily component (component B) that is liquid at 25 DEG C and that is selected from the group consisting of vegetable oils and fatty acid triglycerides; a nonionic surfactant (component C) having a straight saturated alkyl chain having 13 or more carbon atoms and having an HLB value of 2.8 to 8.0 (inclusive); and water (component D), wherein the content of the component D is from 15.0% by mass to 50.0% by mass (inclusive).

Description

Technical Field

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

[0002] As oily cosmetic compositions, hair oil, hair stick, hair clay, hair balm and the like are known. Background Art

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

[0004] In addition, Patent Document 2 listed below discloses a hair cream comprising a liquid oil (A) and a curing agent (B) for curing the liquid oil (A), wherein the content of the liquid oil (A) is 70% to 99% by mass and the content of the curing agent (B) is 1% to 30% by mass.

[0005] Prior art literature Patent Literature Patent Document 1: Japanese Patent Application Publication No. 2000-143454 Patent Document 2: Japanese Patent Application Publication No. 2020-050613 Summary of the invention Problems to be solved by the invention Known are oily cosmetic compositions having moderately hard properties such as hair creams and hard properties such as hair clays. These oily cosmetic compositions contain an oily component that is solid at 25°C in order to impart hardness to the oily cosmetic composition.

[0006] However, it is difficult to sufficiently improve the spreading property of conventional oily cosmetic compositions containing oily components that are solid at 25°C.

[0007] An object of the present invention is to provide a water-in-oil emulsified cosmetic composition which has better spreadability than an oily cosmetic composition having the same properties.

[0008] Means used to solve problems The inventors of the present invention have conducted intensive studies on a cosmetic composition that can improve the spreadability compared to an oily cosmetic composition having the same properties and containing an oily component that is solid at 25° C. As a result, the inventors of the present invention have found that the above-mentioned problems can be solved by the following cosmetic composition.

[0009] The present invention provides a water-in-oil emulsified cosmetic composition, wherein the water-in-oil emulsified cosmetic composition comprises the following component (A), the following component (B), the following component (C), and the following component (D), wherein the content of the component (D) is 15.0 mass % or more and 50.0 mass % or less.

[0010] Component (A): an oily component selected from the group consisting of animal and vegetable oils and hydrocarbon oils, having a melting point of 65°C or higher and 100°C or lower and being solid at 25°C Ingredient (B): an oily component selected from the group consisting of vegetable oils and fatty acid triglycerides, which is liquid at 25°C 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 The water-in-oil emulsified cosmetic composition of the present invention preferably contains the following component (E).

[0011] Ingredient (E): Polyglyceryl Polyricinoleate The water-in-oil emulsified cosmetic composition of the present invention preferably contains the following component (F).

[0012] Component (F): a phosphoric acid-based surfactant having an HLB value of greater than 8.0 and less than 12.0 In the water-in-oil emulsified cosmetic composition of the present invention, the content of an oily component that is liquid at 25° C. selected from the group consisting of the component (B) and ester oils other than the component (B), hydrocarbon oils, and silicone oils is preferably 15.0% by mass or more and 70.0% by mass or less.

[0013] The water-in-oil emulsified cosmetic composition of the present invention comprises the following component (G), and the content of an oily component selected from the group consisting of the component (B) and ester oils other than the component (B), hydrocarbon oils, and silicone oils that is liquid at 25° C. is preferably 5.0% by mass or more and 25.0% by mass or less.

[0014] Ingredient (G): Powder The water-in-oil emulsified cosmetic composition of the present invention is preferably a hair cosmetic composition.

[0015] Effects of the Invention The water-in-oil emulsified cosmetic composition of the present invention comprises a specific component (A), a specific component (B), a specific component (C) and a specific component (D), wherein the content of the component (D) is 15.0% by mass or more and 50.0% by mass or less. The water-in-oil emulsified cosmetic composition of the present invention has the above-mentioned structure, and thus can have better ductility than an oily cosmetic composition having the same properties.

[0016] When the water-in-oil emulsified cosmetic composition of the present invention is a hair cosmetic composition, the component (B) can well style the hair. When the water-in-oil emulsified cosmetic composition of the present invention is a skin cosmetic composition, the component (B) can well impart moisturizing feeling to the skin. DETAILED DESCRIPTION

[0017] Hereinafter, the present invention will be described in detail.

[0018] The water-in-oil emulsified cosmetic composition of the present invention comprises: an oily component selected from the group consisting of animal and vegetable oils and hydrocarbon oils, having a melting point of 65° C. or higher and 100° C. or lower and being solid at 25° C.; an oily component selected from the group consisting of vegetable oils and fatty acid triglycerides, being liquid at 25° C.; a nonionic surfactant having a linear saturated alkyl chain having 13 or more carbon atoms and an HLB value of 2.8 or higher and 8.0 or lower; and water.

[0019] In this specification, the above-mentioned “oil component selected from the group consisting of animal and vegetable oils and hydrocarbon oils, having a melting point of 65° C. to 100° C. and being solid at 25° C.” may be referred to as “component (A)”.

[0020] In this specification, the above-mentioned “oil component selected from the group consisting of vegetable oils and fatty acid triglycerides and being liquid at 25° C.” may be referred to as “component (B)”.

[0021] In this specification, the above-mentioned “nonionic surfactant having a linear saturated alkyl chain having 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)”.

[0022] In this specification, the above-mentioned "water" may be referred to as "component (D)".

[0023] Thus, the water-in-oil emulsified cosmetic composition of the present invention comprises component (A), component (B), component (C), and component (D).

[0024] In the water-in-oil emulsified cosmetic composition of the present invention, the content of the component (D) is 15.0% by mass or more and 50.0% by mass or less.

[0025] In the water-in-oil emulsified cosmetic composition of the present invention, since it has the above-mentioned structure, it can make the ductility better than the oily cosmetic composition having the same properties. For example, when the water-in-oil emulsified cosmetic composition of the present invention is a hair cream, it can make the ductility better than the conventional hair cream (oily cosmetic composition). In addition, when the water-in-oil emulsified cosmetic composition of the present invention is a hair clay, it can make the ductility better than the conventional hair clay (oily cosmetic composition).

[0026] The reason why the water-in-oil emulsified cosmetic composition of the present invention can have better spreadability than an oily cosmetic composition having the same properties is presumed to be as follows.

[0027] In a general oily cosmetic composition, hardness is imparted by forming a specific structure with an oily component that is solid at 25°C in an oily component that is liquid at 25°C. However, in an oily cosmetic composition, the size of the above structure is large, and it is considered that the ductility characteristics cannot be fully improved. In contrast, in the water-in-oil emulsified cosmetic composition of the present invention, hardness is imparted by a structure formed by an oily component that is solid at 25°C (component (A)), but the formation of the above structure is inhibited to a certain extent due to the presence of a dispersed aqueous phase, and the size of the formed structure becomes smaller. Therefore, in the water-in-oil emulsified cosmetic composition of the present invention, ductility can be improved compared with an oily cosmetic composition having the same properties.

[0028] The above mechanism is merely a hypothesis, and the reason why the water-in-oil emulsified cosmetic composition of the present invention can have better spreadability than an oily cosmetic composition having the same properties is not limited thereto.

[0029] In addition, in the water-in-oil emulsified cosmetic composition of the present invention, stickiness can be effectively suppressed.

[0030] When the water-in-oil emulsified cosmetic composition of the present invention is a hair cosmetic composition, it can well style hair.

[0031] When the water-in-oil emulsified cosmetic composition of the present invention is a skin cosmetic composition, it can provide a good moisturizing feeling to the skin.

[0032] In addition, the water-in-oil emulsified cosmetic composition of the present invention can also improve the coating properties. Therefore, the water-in-oil emulsified cosmetic composition taken out with fingers can be spread well on the palm, and when applied to hair or skin, the water-in-oil emulsified cosmetic composition can be transferred well and evenly to the hair or skin.

[0033] Furthermore, the water-in-oil emulsified cosmetic composition of the present invention can improve wash-off properties.

[0034] The water-in-oil emulsified cosmetic composition of the present invention may contain polyglyceryl polyricinoleate.

[0035] In this specification, the above-mentioned "polyglycerol polyricinoleate" may be referred to as "component (E)".

[0036] The water-in-oil emulsified cosmetic composition of the present invention may contain a phosphoric acid-based surfactant having an HLB value of greater than 8.0 and 12.0 or less.

[0037] In this specification, the above-mentioned “phosphoric acid-based surfactant having an HLB value of more than 8.0 and 12.0” may be referred to as “component (F)”.

[0038] The water-in-oil emulsified cosmetic composition of the present invention may contain powder.

[0039] In this specification, the above-mentioned “powder” may be referred to as “component (G)”.

[0040] The water-in-oil emulsified cosmetic composition of the present invention may contain other components in addition to components (A) to (G).

[0041] The above-mentioned components, for example, component (A), component (B), component (C), component (E), component (F), component (G), and other components may be used alone or in combination of two or more.

[0042] In this specification, "solid at 25°C" means a property without fluidity at 25°C, and also includes a property of being semisolid (paste-like) at 25°C. On the other hand, "liquid at 25°C" means a property having fluidity at 25°C.

[0043] In the present specification, the content of each component refers to the total content of all components contained in the water-in-oil emulsified cosmetic composition. For example, the content of component (A) refers to the total content of all components (A) in the water-in-oil emulsified cosmetic composition.

[0044] Hereinafter, the details of each component used in the water-in-oil emulsified cosmetic composition of the present invention will be described.

[0045] (ingredient (A)) Component (A) is an oily component (at least one oily component that is solid at 25°C) selected from the group consisting of animal and vegetable oils and hydrocarbon oils, having a melting point of 65°C or higher and 100°C or lower and being solid at 25°C. Component (A) is an excipient. In addition, by using component (A), the manageability of hair can be improved. Component (A) may be used alone or in combination of two or more.

[0046] In this specification, the “animal and vegetable oil” in the component (A) may be referred to as “component (A1)”, and the “hydrocarbon oil” may be referred to as “component (A2)”.

[0047] Therefore, component (A) is an oily component selected from the group consisting of component (A1) and component (A2) having a melting point of 65° C. to 100° C. and being solid at 25° C. The melting point of component (A) is preferably 70° C. or higher.

[0048] Component (A1) is an animal or vegetable oil having a melting point of 65° C. to 100° C. and being solid at 25° C. The melting point of component (A1) is preferably 70° C. or higher.

[0049] Examples of the component (A1) include carnauba wax, sunflower seed wax, candelilla wax, rice bran wax, and hydrogenated castor oil.

[0050] Component (A2) is a hydrocarbon oil having a melting point of 65° C. to 100° C. and being solid at 25° C. The melting point of component (A2) is preferably 70° C. or higher.

[0051] Examples of the component (A2) include microcrystalline wax, paraffin wax, polyethylene wax, ceresin, ozokerite, and synthetic wax (Fischer-Tropsch wax, etc.).

[0052] From the viewpoint of further suppressing stickiness, component (A) preferably contains component (A2). From the viewpoint of further improving the durability of the hairstyle after hair styling, component (A) more preferably contains component (A1) and component (A2). In this case, the shaping property can be further improved, and the manageability of hair can be further improved.

[0053] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (A1) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more, and is 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 above the lower limit and below the upper limit, the durability of the hairstyle after hair styling can be further improved. When the content of component (A1) is below the upper limit, stickiness can be effectively suppressed.

[0054] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (A2) is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, and further preferably 7.0% by mass or more, and preferably 35.0% by mass or less, more preferably 30.0% by mass or less, and further preferably 25.0% by mass or less. If the content of component (A2) is at least the above lower limit, the shaping property can be further improved, and the manageability of the hair can be further improved. If the content of component (A2) is at most the above upper limit, the spreadability can be further improved. In addition, the emulsification stability can be further improved.

[0055] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (A) is preferably 5.0% by mass or more, more preferably 7.0% by mass or more, and further preferably 10.0% by mass or more, and preferably 35.0% by mass or less, more preferably 30.0% by mass or less, and further preferably 25.0% by mass or less. If the content of component (A) is at least the above lower limit, the shaping property can be further improved, and the manageability of the hair can be further improved. If the content of component (A) is at most the above upper limit, the spreadability can be further improved. In addition, the emulsification stability can be further improved.

[0056] (Ingredient (B)) Component (B) is an oily component selected from the group consisting of vegetable oils and fatty acid triglycerides and being liquid at 25°C (at least one oily component being liquid at 25°C). By using component (B) in combination with component (A), the ductility can be improved. In addition, by using component (B), the manageability of hair can be improved. Furthermore, by using component (B), moisturizing feeling can be well imparted to the skin. Component (B) can be used alone or in combination of two or more.

[0057] In this specification, the “vegetable oil” in the component (B) may be referred to as “component (B1)”, and the “fatty acid triglyceride” may be referred to as “component (B2)”.

[0058] Therefore, the component (B) is an oily component that is liquid at 25°C and is selected from the group consisting of the component (B1) and the component (B2).

[0059] Ingredient (B1) is a vegetable oil that is liquid at 25°C.

[0060] Examples of the component (B1) include avocado oil, argan oil, olive oil, rice bran oil, soybean oil, corn oil, castor oil, grape seed oil, macadamia oil, jojoba oil, macadamia nut oil, camellia seed oil, eucalyptus oil, coconut oil, safflower oil, palm oil, palm kernel oil, almond oil, rose hip oil, camellia oil, kiwi seed oil, camellia oil, almond oil, sesame oil, soybean oil, hazelnut oil, peppermint oil, carrot oil, lavender oil, meadowfoam seed oil, and sunflower seed oil.

[0061] Component (B2) is a fatty acid triglyceride that is liquid at 25°C.

[0062] Examples of component (B2) include triethylhexanoin, tricaprylin, tricaprin, triundecanoic acid, tristearin, triisostearin, tripalmitin, triundecanoic acid, tri-2-heptylundecanoic acid, tribehenin, trimyristin, trilaurin, triolein, trilinolein, and tripalmitin. Palmitoleic acid glyceryl, triacetyl hydroxystearic acid glyceryl, triacetyl ricinoleic acid glyceryl, trihydroxystearic acid glyceryl, tri(caprylic acid / capric acid) glyceryl, tri(caprylic acid / capric acid / myristic acid / stearic acid) glyceryl, tri(caprylic acid / capric acid / isostearic acid / adipic acid) glyceryl, tri(caprylic acid / capric acid / lauric acid) glyceryl, tri(caprylic acid / capric acid / linoleic acid) glyceryl, tri(caprylic acid / capric acid / stearic acid) glyceryl, tritallow fatty acid glyceryl, tri(tallow fat) Fatty acid / mink oil fatty acid / cod liver oil fatty acid) glyceride, tri(mink oil fatty acid / palmitic acid) glyceride, tri(coconut oil fatty acid) glyceride, trilanolin fatty acid glyceride, tri(ricinoleic acid / caproic acid / caprylic acid / capric acid) glyceride, tri(C10-18) fatty acid glyceride, tri(C12-18) fatty acid glyceride, hydrogenated tri(C12-18) fatty acid glyceride, tri(C12-20) fatty acid glyceride, tri(C18-36) fatty acid Glycerides, tri-branched fatty acid (C10-40) glycerides, tri-branched fatty acid (C12-31) glycerides, (hydrogenated rosin / diisostearate) glyceride, tri(palm oil fatty acid / palm kernel oil fatty acid / olive oil fatty acid / macadamia oil fatty acid / rapeseed oil fatty acid) glyceride, tri(castor fatty acid / olive fatty acid) glyceride, tri(behenic acid / isostearate / eicosanedioic acid) glyceride and tri(mink oil fatty acid / palmitic acid) glyceride, etc.

[0063] The component (B) preferably contains the component (B2), and more preferably contains the component (B1) and the component (B2). In this case, the ductility can be further improved and the stickiness can be further suppressed.

[0064] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of the component (B1) is preferably 0.3% by mass or more, more preferably 1.0% by mass or more, and preferably 20.0% by mass or less, more preferably 15.0% by mass or less. When the content of the component (B1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0065] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of the component (B2) is preferably 1.0% by mass or more, more preferably 3.0% by mass or more, and preferably 50.0% by mass or less, more preferably 40.0% by mass or less. When the content of the component (B2) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0066] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (B) is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, and preferably 50.0% by mass or less, more preferably 40.0% by mass or less. When the content of component (B) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0067] (Ingredient (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 emulsified cosmetic composition can be prepared. Component (C) may be used alone or in combination of two or more.

[0068] Component (C) has a linear saturated alkyl chain having 13 or more carbon atoms. The carbon number in the linear saturated alkyl chain is preferably 15 or more, more preferably 17 or more, and preferably 23 or less. When the carbon number is greater than or equal to the above lower limit and less than or equal to the above upper limit, the emulsification property can be further improved.

[0069] Component (C) preferably has no branched saturated alkyl chain having 13 or more carbon atoms, and also preferably has no unsaturated alkyl chain having 13 or more carbon atoms. Component (C) more preferably has no branched saturated alkyl chain having 13 or more carbon atoms, and no unsaturated alkyl chain having 13 or more carbon atoms.

[0070] The HLB value of component (C) is 2.8 to 8.0, preferably 3.0 or more, more preferably 3.2 or more, preferably 7.0 or less, more preferably 6.0 or less. When the HLB value is greater than the lower limit and less than the upper limit, the water-in-oil emulsification property can be further improved.

[0071] Examples of the component (C) include glycerol fatty acid esters, polyglycerol fatty acid esters, sorbitan fatty acid esters, and polyoxyethylene alkyl ethers.

[0072] Examples of the glycerol fatty acid esters include glyceryl behenate, glyceryl stearate, glyceryl palmitate, and glyceryl myristic acid. Examples of the polyglycerol fatty acid esters include diglyceryl monostearate, decaglyceryl tristearate, polyglyceryl pentastearate-4, polyglyceryl pentastearate-6, polyglyceryl pentastearate-10, polyglyceryl decastearate-10, and polyglyceryl heptadecanoate-10. 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 ethylene oxide of 2 to 5 and an alkyl group having a carbon number of 14 to 22. More specifically, examples include POE (5) behenyl ether, POE (2) cetyl ether, and POE (2) stearyl ether.

[0073] 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 property of the water-in-oil type can be further improved.

[0074] 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)”.

[0075] Therefore, the component (C) preferably includes the component (C1). The water-in-oil emulsified cosmetic composition preferably includes the component (C1).

[0076] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of the component (C1) 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 the component (C1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the emulsification properties of the water-in-oil emulsified cosmetic composition can be further improved.

[0077] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (C) 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. If the content of component (C) is greater than the above lower limit and less than the above upper limit, the emulsification properties of the water-in-oil type can be further improved.

[0078] (Ingredient (D)) Component (D) is water. Component (D) is preferably purified water.

[0079] From the viewpoint of forming a water-in-oil emulsion system, the content of the 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 emulsified cosmetic composition.

[0080] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (D) 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 greater than or equal to the above lower limit and less than or equal to the above upper limit, the emulsion stability can be further improved.

[0081] (Ingredient (E)) Component (E) is polyglycerol polyricinoleate. The above-mentioned water-in-oil emulsified cosmetic composition preferably contains component (E). By using component (E), the dispersion stability of the water-in-oil emulsified cosmetic composition can be improved. More specifically, by using component (E), the sedimentation of emulsified particles (aqueous phase) can be effectively suppressed. Therefore, the operability in the process of filling the water-in-oil emulsified cosmetic composition into a container can be improved. Component (E) can be used alone or in combination of two or more.

[0082] The average number of moles of glycerin added in component (E) is preferably 2 or more, more preferably 3 or more, and is preferably 10 or less, more preferably 7 or less.

[0083] Examples of the component (E) include polyglyceryl polyricinoleate-3, polyglyceryl polyricinoleate-5, and polyglyceryl polyricinoleate-6.

[0084] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (E) 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 (E) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the dispersion stability of the water-in-oil emulsified cosmetic composition can be further improved.

[0085] (ingredient (F)) Component (F) is a phosphoric acid-based surfactant having an HLB value of greater than 8.0 and less than 12.0. The water-in-oil emulsified cosmetic composition preferably contains component (F). By using component (F), the emulsion stability can be further improved. Component (F) can be used alone or in combination of two or more.

[0086] The HLB value of component (F) is preferably 8.1 or more, more preferably 9.0 or more, and preferably 11.5 or less.

[0087] Examples of the component (F) include monoalkyl phosphate salts such as sodium lauryl phosphate, sodium cetyl phosphate, and diethanolamine cetyl phosphate; and polyoxyethylene alkyl ether phosphate salts such as sodium polyoxyethylene lauryl ether phosphate, sodium polyoxyethylene cetyl ether phosphate, sodium polyoxyethylene oleyl ether phosphate, sodium polyoxyethylene alkylphenyl ether phosphate, and triethanolamine polyoxyethylene alkylphenyl ether phosphate.

[0088] Component (F) preferably contains a phosphoric acid-based surfactant (at least one phosphoric acid-based surfactant) selected from the group consisting of alkyl phosphoric acid esters and / or salts thereof and polyoxyalkylene alkyl ether phosphoric acid and / or salts thereof.

[0089] In the present specification, the above-mentioned “phosphoric acid-based surfactant selected from the group consisting of alkyl phosphate esters and / or salts thereof and polyoxyalkylene alkyl ether phosphoric acid and / or salts thereof” may be referred to as “component (F1)”, the above-mentioned “alkyl phosphate esters and / or salts thereof” may be referred to as “component (F11)”, and the above-mentioned “polyoxyalkylene alkyl ether phosphoric acid and / or salts thereof” may be referred to as “component (F12)”.

[0090] Therefore, the component (F) preferably includes the component (F1). The component (F1) is a phosphoric acid-based surfactant selected from the group consisting of the components (F11) and (F12). The water-in-oil emulsified cosmetic composition preferably includes the component (F1).

[0091] Component (F11) may be an alkyl phosphate ester, an alkyl phosphate ester salt, or both an alkyl phosphate ester and an alkyl phosphate ester salt.

[0092] The alkyl phosphate is a compound in which the hydrogen atoms in one or more of the three hydroxyl groups of phosphoric acid are replaced by alkyl groups. The alkyl phosphate may be a monoester, a diester, a triester, or a mixture of two or more thereof.

[0093] The number of carbon atoms in the alkyl group of the ester part in the alkyl phosphate is preferably 12 or more, more preferably 14 or more, preferably 36 or less, more preferably 30 or less, and further preferably 22 or less. The alkyl group of the ester part in the alkyl phosphate may be linear or branched, and is preferably linear.

[0094] Examples of the salts in the alkyl phosphate salts include inorganic salts, organic amine salts, and basic amino acid salts. Examples of the inorganic salts 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; zinc salts, etc. Examples of the organic amine salts include monoethanolamine salts, diethanolamine salts, and triethanolamine salts. Examples of the basic amino acid salts include arginine salts and lysine salts, etc.

[0095] Examples of the component (F11) include lauryl phosphoric acid, sodium lauryl phosphate, disodium lauryl phosphate, diethanolamine lauryl phosphate, triethanolamine lauryl phosphate, potassium lauryl phosphate, cetyl phosphoric acid, potassium cetyl phosphate, triethanolamine cetyl phosphate, and diethanolamine cetyl phosphate.

[0096] Examples of commercially available products of the component (F11) include "Phosten HLP" (manufactured by Nikko Chemical Co., Ltd.) and "Hostaphat CC" (manufactured by Clariant Japan Co., Ltd.).

[0097] Component (F12) may be polyoxyalkylene alkyl ether phosphoric acid, may be polyoxyalkylene alkyl ether phosphate, or may be both polyoxyalkylene alkyl ether phosphoric acid and polyoxyalkylene alkyl ether phosphate.

[0098] The polyoxyalkylene alkyl ether phosphoric acid 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 the alkylene oxide constituting the polyoxyalkylene residue in the polyoxyalkylene alkyl ether include alkylene oxides having 2 to 4 carbon atoms such as ethylene oxide, propylene oxide, and butylene oxide. The polyoxyalkylene is preferably polyoxyethylene. The polyoxyalkylene may contain only one alkylene oxide, or may contain two or more alkylene oxides.

[0099] The monovalent saturated aliphatic alcohol residue constituting the polyoxyalkylene alkyl ether includes 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 a straight chain.

[0100] The polyoxyalkylene alkyl ether phosphoric acid may be in the form of a monoester, a diester, a triester, or a mixture of two or more thereof.

[0101] Examples of the salt 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 column of the component (F11).

[0102] Examples of the component (F12) include polyoxyalkylene cetearyl ether phosphates such as tri(ceteareth-4) phosphate and tri(ceteareth-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.

[0103] The component (F) preferably comprises a phosphoric acid-based surfactant (at least one phosphoric acid-based surfactant) selected from the group consisting of tri(ceteareth-4)phosphate, tri(ceteareth-5)phosphate, di(C12-15)pareth-4 phosphoric acid, di(C12-15)pareth-6 phosphoric acid, and salts thereof. The component (F1) is preferably a phosphoric acid-based surfactant (at least one phosphoric acid-based surfactant) selected from the group consisting of tri(ceteareth-4)phosphate, tri(ceteareth-5)phosphate, di(C12-15)pareth-4 phosphoric acid, di(C12-15)pareth-6 phosphoric acid, and salts thereof.

[0104] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of the component (F1) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and even more preferably 0.7% by mass or more, and is preferably 10.0% by mass or less, and more preferably 5.0% by mass or less. When the content of the component (F1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the emulsion stability can be further improved.

[0105] In 100% by mass of the water-in-oil emulsified cosmetic composition, the content of component (F) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and further preferably 0.7% by mass or more, and is preferably 10.0% by mass or less, and more preferably 5.0% by mass or less. When the content of component (F) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the emulsion stability can be further improved.

[0106] (Ingredient (G)) Component (G) is a powder. The above-mentioned water-in-oil emulsified cosmetic composition preferably contains component (G). By using component (G), a matte texture with suppressed gloss can be given to hair, or the feeling of use of the water-in-oil emulsified cosmetic composition can be adjusted. Component (G) can be used alone or in combination of two or more.

[0107] Examples of the component (G) include clay minerals, silicon dioxide (anhydrous silicic acid), 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 (octenyl succinate corn starch metal salt, etc.).

[0108] The above-mentioned clay minerals may be natural or synthetic.

[0109] 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.

[0110] Examples of the kaolin group clay minerals include kaolin, nacrite, dickite, and halloysite.

[0111] Examples of the antigorite clay minerals include antigorite, ferrocene, and chlorite.

[0112] Examples of the pyrophyllite group clay minerals include pyrophyllite and talc.

[0113] Examples of the mica-group clay minerals include illite, glauconite, chalcanthite, sericite, mica, muscovite, chrome muscovite, and biotite.

[0114] Examples of the smectite clay minerals include bentonite, montmorillonite, beidellite, nontronite, saponite, hectorite, and synthetic hectorite (lucentite).

[0115] Examples of the vermiculite-group clay mineral include vermiculite and the like.

[0116] Examples of the chlorite group clay mineral include chlorite and the like.

[0117] Examples of the organically modified clay minerals include organically modified clay minerals obtained by organically modifying smectite clay minerals or vermiculite clay minerals. In the organic modification treatment, a quaternary ammonium salt type cationic surfactant is preferably used. Examples of the quaternary ammonium salt type cationic surfactants include alkyl trimethyl ammonium chloride, dialkyl dimethyl ammonium chloride, and benzalkonium chloride.

[0118] Component (G) preferably contains a powder (at least one powder) selected from the group consisting of kaolin, silica, diatomaceous earth, talc, and bentonite. In this case, the properties of the water-in-oil emulsified cosmetic composition can be easily made hard.

[0119] 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 (G1)”.

[0120] Therefore, the component (G) preferably contains the component (G1). The water-in-oil emulsified cosmetic composition preferably contains the component (G1).

[0121] The content of component (G1) in 100% by mass of the water-in-oil emulsified cosmetic composition 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 is preferably 50.0% by mass or less, more preferably 40.0% by mass or less, even more preferably 30.0% by mass or less, even more preferably 20.0% by mass or less, even more preferably 10.0% by mass or less, and particularly preferably 5.0% by mass or less.

[0122] The content of component (G) in 100% by mass of the water-in-oil emulsified cosmetic composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and preferably 50.0% by mass or less, more preferably 40.0% by mass or less.

[0123] (Other ingredients) The water-in-oil emulsified cosmetic composition may contain other ingredients other than the above-mentioned components (A) to (G). Examples of the above-mentioned other ingredients include an oily component that is solid at 25°C different from component (A), an oily component that is liquid at 25°C different from component (B), a surfactant (anionic surfactant, cationic surfactant, nonionic surfactant, amphoteric surfactant, etc.) different from both component (C) and component (F), a polyol, a thickener, a moisturizer, a bactericide, a pearlescent agent, an anti-inflammatory agent, a refreshing agent, a pH adjuster, a fragrance, an ultraviolet absorber, an antioxidant, a metal ion chelating agent (chelating agent), a film-forming polymer, a coloring agent, a pigment, a vitamin, an amino acid, a astringent, a whitening agent, an animal or plant extract, an acid, and an alkali. The above-mentioned other ingredients may be used alone or in combination of two or more.

[0124] <Oil-based component that is solid at 25°C, different from component (A)> The water-in-oil emulsified cosmetic composition preferably contains an oily component that is solid at 25°C (hereinafter sometimes referred to as an oily component (X) that is solid at 25°C) different from the component (A). The oily component (X) that is solid at 25°C is an oily component that has a melting point of less than 65°C or more than 100°C and is solid at 25°C. The oily component (X) that is solid at 25°C is preferably an oily component that has a melting point of less than 65°C and is solid at 25°C.

[0125] Examples of the oily component (X) that is solid at 25° C. include vaseline, stearyl alcohol, avocado butter, mango butter, Astragalus mume seed butter, and beeswax.

[0126] <Oil-based component that is liquid at 25°C, different from component (B)> The water-in-oil emulsified cosmetic composition preferably contains an oily component that is liquid at 25°C, different from component (B) (hereinafter, sometimes referred to as an oily component (X) that is liquid at 25°C). The oily component (X) that is liquid at 25°C is an oily component that is liquid at 25°C, different from both vegetable oil and fatty acid triglyceride.

[0127] Examples of the oily component (X) that is liquid at 25° C. include hydrocarbon oils, silicone oils, and ester oils.

[0128] Examples of the hydrocarbon oil (hydrocarbon oil that is liquid at 25° C.) include α-olefin oligomers, squalane (synthetic squalane, vegetable squalane), squalene, liquid isoparaffins, liquid paraffins (mineral oil), (C13-15) alkanes, hydrogenated polyisobutene, hydrogenated polydecene, light isoparaffins (isododecane), light liquid isoparaffins, and liquid isoparaffins.

[0129] Examples of the above silicone oil (silicone oil that is liquid at 25°C) include methylpolysiloxane, methylphenylsiloxane, highly polymerized methylpolysiloxane, poly(oxyethylene·oxypropylene)methylpolysiloxane copolymer, cyclopentasiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyoxyethylene·methylpolysiloxane copolymer, aminoethylaminopropylmethylsiloxane·dimethylpolysiloxane copolymer, and polydimethylsiloxanol, etc.

[0130] Examples of the above ester oil (ester oil that is liquid at 25°C) include isononyl isononanoate, isopropyl myristate, ethylhexyl palmitate (octyl palmitate), cetyl ethylhexanoate, isodecyl neopentanoate, 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), pentaerythritol tetraoctanoate, and pentaerythritol tetraisostearate, etc.

[0131] <Hydrophilic surfactant with an HLB value greater than 12.0> From the viewpoint of further improving the emulsification stability of the water-in-oil type, in the above water-in-oil type emulsified cosmetic composition, it is preferred that the content of the hydrophilic surfactant (hereinafter sometimes referred to as hydrophilic surfactant (X)) with an HLB value greater than 12.0 is small. The above water-in-oil type emulsified cosmetic composition preferably does not contain the hydrophilic surfactant (X) or contains the hydrophilic surfactant (X) at a content of 3.0 mass% or less. When the above water-in-oil type emulsified cosmetic composition contains the hydrophilic surfactant (X), in 100 mass% of the above water-in-oil type emulsified cosmetic composition, the content of the hydrophilic surfactant (X) is preferably 3.0 mass% or less, more preferably 2.0 mass% or less, and further preferably 1.0 mass% or less. Especially in the water-in-oil type emulsified cosmetic composition, when the content of the hydrophilic surfactant (X) is more than the content of the surfactant with an HLB value of 12.0 or less, it may not be possible to maintain the water-in-oil type emulsion composition.

[0132] (Other details of the water-in-oil type emulsified cosmetic composition) The method for producing the water-in-oil emulsified cosmetic composition is not particularly limited, and a known method for producing a water-in-oil emulsified cosmetic composition can be used. As the method for producing the water-in-oil emulsified cosmetic composition, for example, a method in which each component is mixed and emulsified while being heated to obtain a mixed solution, and then the obtained mixed solution is cooled and solidified. As a method for mixing each component, a method using a stirring device such as a dispersing mixer and a paddle mixer can be mentioned.

[0133] The water-in-oil emulsified cosmetic composition can be used in a form filled in a container, for example. Examples of the container include a tube container, a dispenser container (pump container), a can container, and a delivery container. The container is preferably a can container.

[0134] The use of the water-in-oil emulsified cosmetic composition is not particularly limited. Examples of the use of the water-in-oil emulsified cosmetic composition include hair cosmetics such as hair styling agents and wash-off care agents; skin cosmetics such as moisturizing cosmetics (for fingers, body, face, scalp, etc.). The water-in-oil emulsified cosmetic composition is, for example, a hair cosmetic composition or a skin cosmetic composition.

[0135] The water-in-oil emulsified cosmetic composition has the property of improving the manageability of hair, and is therefore preferably a hair cosmetic composition. In addition, the water-in-oil emulsified cosmetic composition has the property of providing a moisturizing feeling to the skin, and may therefore also be a skin cosmetic composition. Furthermore, the water-in-oil emulsified cosmetic composition may also be a cosmetic composition that can be used as both a hair cosmetic and a skin cosmetic. As described above, the water-in-oil emulsified cosmetic composition may be applied to the skin for the purpose of moisturizing, etc., in addition to being applied to the hair as a hair cosmetic.

[0136] The properties of the water-in-oil emulsified cosmetic composition are not particularly limited. The water-in-oil emulsified cosmetic composition may be in a gel state, a paste state, a mud state, a solid state, or other states. The water-in-oil emulsified cosmetic composition is preferably in a paste state or a mud state. The water-in-oil emulsified cosmetic composition is preferably a paste-like water-in-oil emulsified cosmetic composition (so-called hair cream), and is also preferably a mud-like water-in-oil emulsified cosmetic composition (so-called hair mud).

[0137] Hereinafter, the preferred aspects of the difference between the cream-like water-in-oil emulsified cosmetic composition and the mud-like water-in-oil emulsified cosmetic composition will be particularly described.

[0138] <Paste-like water-in-oil emulsified cosmetic composition (hair cream)> In 100% by mass of the water-in-oil emulsified cosmetic composition (cream-like water-in-oil emulsified cosmetic composition), the content of component (B1) is preferably 0.3% by mass or more, more preferably 1.0% by mass or more, and even more preferably 2.0% by mass or more, and is preferably 15.0% by mass or less, and more preferably 10.0% by mass or less. When the content of component (B1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0139] In 100% by mass of the water-in-oil emulsified cosmetic composition (cream-like water-in-oil emulsified cosmetic composition), the content of component (B2) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and further preferably 15.0% by mass or more, and is preferably 50.0% by mass or less, and more preferably 40.0% by mass or less. When the content of component (B2) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0140] In 100% by mass of the water-in-oil emulsified cosmetic composition (cream-like water-in-oil emulsified cosmetic composition), the content of component (B) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and further preferably 15.0% by mass or more, and is preferably 50.0% by mass or less, and more preferably 40.0% by mass or less. When the content of component (B) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0141] In 100% by mass of the water-in-oil emulsified cosmetic composition (cream-like water-in-oil emulsified cosmetic composition), the content of an oily component that is liquid at 25° C. selected from the group consisting of component (B) and ester oils other than component (B), hydrocarbon oils, and silicone oils is preferably 15.0% by mass or more, more preferably 30.0% by mass or more, and even more preferably 35.0% by mass or more, and is preferably 70.0% by mass or less, and more preferably 60.0% by mass or less. When the content of the oily component that is liquid at 25° C. is not less than the above lower limit and not more than the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved. In addition, the above-mentioned "an oily component that is liquid at 25°C and is selected from the group consisting of component (B), ester oil other than component (B), hydrocarbon oil and silicone oil" means in other words "an oily component that is liquid at 25°C and is selected from the group consisting of vegetable oil, fatty acid triglyceride, ester oil other than vegetable oil, ester oil other than fatty acid triglyceride, hydrocarbon oil and silicone oil".

[0142] <Pulp-like water-in-oil emulsified cosmetic composition (hair mud)> In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of component (B1) is preferably 0.3% by mass or more, more preferably 1.0% by mass or more, and preferably 20.0% by mass or less, more preferably 15.0% by mass or less. When the content of component (B1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0143] In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of component (B2) is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, and preferably 30.0% by mass or less, more preferably 20.0% by mass or less. When the content of component (B2) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0144] In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of component (B) is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, and preferably 30.0% by mass or less, more preferably 25.0% by mass or less. When the content of component (B) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved.

[0145] In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of an oily component that is liquid at 25°C selected from the group consisting of component (B), ester oils other than component (B), hydrocarbon oils, and silicone oils is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and preferably 30.0% by mass or less, and more preferably 25.0% by mass or less. If the content of the oily component that is liquid at 25°C is greater than or equal to the lower limit and less than or equal to the upper limit, the spreadability can be further improved. In addition, the manageability of the hair can be further improved. In addition, the "oily component that is liquid at 25°C selected from the group consisting of component (B), ester oils other than component (B), hydrocarbon oils, and silicone oils" is, in other words, "an oily component that is liquid at 25°C selected from the group consisting of vegetable oils, fatty acid triglycerides, ester oils other than vegetable oils, ester oils other than fatty acid triglycerides, hydrocarbon oils, and silicone oils".

[0146] The water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition) preferably contains component (G). By using component (G), the properties of the water-in-oil emulsified cosmetic composition can be made hard. From the viewpoint of imparting a matte (dull) texture in addition to the effect of imparting a hard property to the water-in-oil emulsified cosmetic composition, component (G) preferably contains component (G1). Therefore, the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition) preferably contains component (G1).

[0147] In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of component (G) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and preferably 50.0% by mass or less, more preferably 40.0% by mass or less. When the content of component (G) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the properties of the water-in-oil emulsified cosmetic composition can be made hard.

[0148] In 100% by mass of the water-in-oil emulsified cosmetic composition (muddy water-in-oil emulsified cosmetic composition), the content of the component (G1) is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and preferably 50.0% by mass or less, more preferably 40.0% by mass or less. When the content of the component (G1) is greater than or equal to the above lower limit and less than or equal to the above upper limit, the properties of the water-in-oil emulsified cosmetic composition can be made hard.

[0149] Example The present invention will be described in detail below with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.

[0150] In Examples and Comparative Examples, the following components were used.

[0151] (ingredient (A)) Carnauba wax (melting point: 88°C) Sunflower wax (melting point: 78°C) Rice bran wax (melting point: 78°C) Candelilla wax (melting point: 70°C) Microcrystalline wax 1 ("HI-MIC1090" manufactured by Nippon Seira Co., Ltd., melting point: 88°C) Microcrystalline wax 2 ("MULTIWAX W-835" manufactured by Sonneborn, melting point: 76°C) Paraffin 1 (melting point: 73°C) (Ingredient (B)) Glyceryl tri-2-ethylhexanoate Tri(caprylic / capric)glyceryl castor oil Deep Sea Camelina Seed Oil Argan Oil Jojoba Oil (Ingredient (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) (Ingredient (D)) Purified water (Ingredient (E)) Polyglyceryl Polyricinoleate-5 Polyglyceryl Polyricinoleate-6 Polyglyceryl Polyricinoleate-3 (ingredient (F)) Tri(ceteareth-4) phosphate (HLB value: 10.0~11.0) (Ingredient (G)) Kaolin Silicon dioxide (other) Sodium di(oleth-8) phosphate (HLB value: 12.5) Distearate PEG-250 (HLB value: 19.2) Mineral oil (liquid at 25°C) Hydrogenated polyisobutene (oil-based component that is liquid at 25°C) Isononyl isononanoate (liquid oily ingredient at 25°C) Isopropyl myristate (an oily component that is liquid at 25°C) Polyglyceryl Octostearate-6 (an oily ingredient that is liquid at 25°C) Vaseline (an oily ingredient that is solid at 25°C) Paraffin 2 (melting point: 53°C) Stearyl alcohol (solid oily ingredient at 25°C) Beeswax (solid oily component at 25°C) Avocado butter (solid oily component at 25°C) POE (20) triisostearate (HLB value: 8.0) Ceteth-40 (HLB value: 20.0) Glycerin (polyol) Dipropylene glycol (polyol) (Examples 1 to 17 and Comparative Examples 1 to 5) The ingredients shown in Tables 1 to 5 below (the unit of the ingredients is mass %) were mixed and emulsified while heating to prepare a mixed solution. 50 g of the obtained mixed solution was injected into a tank container (cylindrical, with a bottom diameter of 45 mm and a height of 45 mm). After injection, the mixed solution was cooled and solidified by standing for 24 hours to prepare a water-in-oil emulsified cosmetic composition. The amount of ingredients in the table (the amount of ingredients in 100% by mass of the water-in-oil emulsified cosmetic composition) is expressed as the amount of pure ingredients (unit: mass %).

[0152] In addition, the water-in-oil emulsified cosmetic compositions prepared in Examples 1 to 10 were paste-like water-in-oil emulsified cosmetic compositions (hair creams), and the water-in-oil emulsified cosmetic compositions prepared in Examples 11 to 17 were mud-like water-in-oil emulsified cosmetic compositions (hair muds). In addition, the water-in-oil emulsified cosmetic composition prepared in Comparative Example 1 was a cosmetic composition having properties different from both the paste and mud forms. In Comparative Examples 2 and 3, the compositions could not be emulsified, so the subsequent evaluations were not performed. Furthermore, in Comparative Examples 4 and 5, the compositions could not be emulsified into water-in-oil types, and oil-in-water emulsified cosmetic compositions were obtained, so the evaluations other than Test Example 3 were not performed.

[0153] (Comparative Example 1: Oily cosmetic composition (hair cream)) The ingredients shown in Table 6 below were mixed (the mixing unit is mass %), heated and mixed to prepare a mixed solution. 50 g of the obtained mixed solution was poured into a can container (cylindrical, bottom diameter 45 mm, height 45 mm). After the injection, the mixed solution was left to stand for 24 hours to cool and solidify, thereby preparing an oily cosmetic composition (hair cream). The mixing amount in the table (the mixing amount in 100 mass % of the oily cosmetic composition) is expressed as the mixing amount of the pure component (unit: mass %).

[0154] (Comparative Example 2: Oily cosmetic composition (hair clay)) The ingredients shown in Table 6 below were mixed (the mixing unit is mass %), heated and mixed to prepare a mixed solution. 50 g of the obtained mixed solution was injected into a can container (cylindrical, bottom diameter 45 mm, height 45 mm). After injection, the mixed solution was cooled and solidified by standing for 24 hours to prepare an oily cosmetic composition (hair clay). The mixing amount in the table (the mixing amount in 100 mass % of the oily cosmetic composition) is expressed as the mixing amount of the pure component (unit: mass %).

[0155] (evaluate) The obtained water-in-oil emulsified cosmetic composition and oily cosmetic composition were evaluated as follows: Test Examples 1 to 4 were evaluated by three professional panelists, and the evaluation results were determined by consultation.

[0156] (Test Example 1: Ductility) The spreadability of the obtained water-in-oil emulsified cosmetic composition was evaluated as compared with an oily cosmetic composition having the same properties. That is, the water-in-oil emulsified cosmetic composition (hair cream) prepared in Examples 1 to 10 was compared with the oily cosmetic composition (hair cream) prepared in Comparative Example 1. In addition, the water-in-oil emulsified cosmetic composition (hair clay) prepared in Examples 11 to 17 was compared with the oily cosmetic composition (hair clay) prepared in Comparative Example 2. Furthermore, the water-in-oil emulsified cosmetic composition prepared in Comparative Example 1 was compared with the oily cosmetic composition (hair cream) prepared in Comparative Example 1.

[0157] About 1 g of the obtained cosmetic composition was taken on the palm, and the palms of both hands were rubbed together. The spreadability when the composition was spread on the palms was evaluated according to the following criteria.

[0158] <Evaluation Criteria for Ductility> ○ (good): The ductility is significantly better than that of the comparative example. × (poor): ductility is slightly better than that of the comparative example or equal to or lower than that of the comparative example (Test Example 2: Hair neatness) About 1 g of the obtained water-in-oil emulsified cosmetic composition was taken on the palm of the hand, spread on the palm, and applied to a medium-length wig with loose waves (manufactured by YUKARI JAPAN) in a manner of grasping the hair, and the hair was styled (hairstyle with curls). The hair of the wig was visually observed 3 hours after the hair was styled, and the manageability of the hair was evaluated according to the following criteria.

[0159] <Evaluation Criteria for Hair Regularity> ○ (Good): Maintains wavy hair × (bad): hair is messy or curls are uncurled, and the hairstyle cannot be maintained (Test Example 3: Sticky) The wig immediately after hair styling in Test Example 2 was touched by hand. As a result, the wig that was styled using the water-in-oil emulsified cosmetic composition obtained in Example did not feel sticky. On the other hand, the wig that was styled in the same manner as in Test Example 2 using the oil-in-water emulsified cosmetic composition obtained in Comparative Examples 4 and 5 was touched by hand and felt sticky.

[0160] (Test Example 4: Moisturizing Feel) After styling hair in Test Example 2, when the water-in-oil emulsified cosmetic composition remaining on the palm was spread on the back of the hand, the water-in-oil emulsified cosmetic composition obtained in Example felt moist and good moisturizing feeling.

[0161] The compositions and results are shown in Tables 1 to 6 below.

[0162]

[0163]

[0164]

[0165]

[0166]

[0167]

[0168] Hereinafter, formulation examples of the water-in-oil emulsified cosmetic composition of the present invention are shown.

[0169] (Formula Example 1: Hair Cream) Carnauba wax 2.0 mass% Rice bran wax 1.0 mass% Microcrystalline wax (melting point: 88°C) 3.0% by mass 2-Ethylhexanoin glyceryl 20.0 mass% Castor oil 3.0 mass% Argan oil 2.0 mass% Glyceryl behenate 1.5% by mass Polyglycerol polyricinoleate - 52.0 mass% Mineral oil residue Hydrogenated polyisobutylene 3.0 mass% Stearyl alcohol 1.0 mass% Polyglycerol octastearate - 61.5% by mass Tri(ceteareth-4) phosphate 1.5% by mass Distearate PEG-250 0.1 mass% Spices to taste Glycerin 3.0 mass% Tocopherol acetate 0.5 mass% Phenoxyethanol 0.8 mass% 1,2-Pentanediol 0.8 mass% Water 30.0 mass% Total 100.0 mass% (Formula Example 2: Hair Cream) Sunflower seed wax 3.0 mass% Microcrystalline wax (melting point: 88°C) 3.0% by mass Paraffin wax (melting point: 73°C) 3.0 mass% Paraffin wax (melting point: 53°C) 6.0 mass% Tri(caprylic / capric)glyceride 20.0% by mass Castor oil 4.0 mass% Deep sea camellia seed oil 1.0 mass% Argan oil 1.0 mass% Glyceryl behenate 1.0 mass% Polyoxyethylene (5E.O.) behenyl ether 1.0 mass% Polyglycerol polyricinoleate - 62.0% by mass Mineral oil residue Polyglycerol octastearate - 61.5% by mass Tri(ceteareth-4) phosphate 1.5% by mass Distearate PEG-250 0.1 mass% POE (20) triisostearate 3.0 mass% Spices to taste Glycerin 3.0 mass% Phenoxyethanol 0.8 mass% 1,2-Octanediol 0.5% by mass Hydrolyzed keratin 0.5% by mass Water 32.0 mass% Total 100.0 mass% (Formulation Example 3: Skin protection ointment) Microcrystalline wax (melting point: 88°C) 3.0% by mass Paraffin wax (melting point: 73°C) 2.0 mass% Paraffin wax (melting point: 53°C) 6.0 mass% Tri(caprylic / capric)glyceride 15.0% by mass Jojoba oil 5.0 mass% Avocado oil 5.0 mass% Deep sea camellia seed oil 3.0 mass% Glyceryl behenate 1.0 mass% Sorbitan stearate 1.0 mass% Polyoxyethylene (5E.O.) behenyl ether 1.0 mass% Polyglycerol polyricinoleate - 62.0% by mass Mineral oil residue Distearate PEG-250 0.1 mass% Glycerin 3.0 mass% Phenoxyethanol 0.5 mass% 1,2-Octanediol 0.5% by mass Hydrolyzed hyaluronic acid 0.5% by mass Water 35.0 mass% Total 100.0 mass% (Formula Example 4: Mud) Carnauba wax 2.0 mass% Rice bran wax 1.0 mass% Microcrystalline wax (melting point: 88°C) 5.0% by mass Paraffin wax (melting point: 73°C) 3.0 mass% 2-Ethylhexanoin 8.0% by mass Castor oil 4.0 mass% Sorbitan stearate 2.0 mass% Polyglycerol polyricinoleate - 52.0 mass% Mineral oil residue Tri(ceteareth-4) phosphate 1.5% by mass Distearate PEG-250 0.3 mass% Kaolin 20.0 mass% Mica 5.0 mass% Dipropylene glycol 3.0 mass% Tocopherol acetate 0.5 mass% Phenoxyethanol 0.8 mass% 1,2-Pentanediol 0.8 mass% Spices to taste Water 30.0 mass% Total 100.0 mass% (Formula Example 5: Mud) Carnauba wax 2.0 mass% Rice bran wax 1.0 mass% Microcrystalline wax (melting point: 88°C) 5.0 mass% 2-Ethylhexanoin 8.0% by mass Castor oil 4.0 mass% Glyceryl stearate 3.0 mass% Polyglycerol polyricinoleate - 32.0 mass% Mineral oil residue Tri(ceteareth-4) phosphate 1.0 mass% POE (20) triisostearate 3.0 mass% Distearate PEG-250 0.5 mass% Kaolin 20.0 mass% Silicon dioxide 3.0 mass% Bentonite 2.0 mass% Medicinal charcoal 0.5 mass% Dipropylene glycol 3.0 mass% Tocopherol acetate 0.5 mass% Phenoxyethanol 0.8 mass% 1,2-Pentanediol 0.8 mass% Spices to taste Water 30.0 mass% Total 100.0 mass%

Claims

1. A water-in-oil emulsified cosmetic composition, wherein: The water-in-oil emulsified cosmetic composition comprises the following component A, the following component B, the following component C and the following component D, The content of the component D is 15.0 mass % or more and 50.0 mass % or less, Component A: an oily component selected from the group consisting of animal and vegetable oils and hydrocarbon oils, having a melting point of 65° C. to 100° C. and being solid at 25° C., Component B: an oily component selected from the group consisting of vegetable oils and fatty acid triglycerides, which is liquid at 25°C, Component C: a nonionic surfactant having a linear saturated alkyl chain having 13 or more carbon atoms and an HLB value of 2.8 or more and 8.0 or less, Ingredient D: Water.

2. The water-in-oil emulsified cosmetic composition according to claim 1, wherein The water-in-oil emulsified cosmetic composition comprises the following ingredient E, Ingredient E: Polyglyceryl Polyricinoleate.

3. The water-in-oil emulsified cosmetic composition according to claim 1 or 2, wherein: The water-in-oil emulsified cosmetic composition comprises the following ingredient F, Component F: a phosphoric acid-based surfactant having an HLB value of greater than 8.0 and less than or equal to 12.

0.

4. The water-in-oil emulsified cosmetic composition according to claim 1 or 2, wherein: The content of an oily component that is liquid at 25° C. and selected from the group consisting of the component B and ester oils other than the component B, hydrocarbon oils, and silicone oils is 15.0% by mass or more and 70.0% by mass or less.

5. The water-in-oil emulsified cosmetic composition according to claim 1 or 2, wherein: The water-in-oil emulsified cosmetic composition comprises the following ingredient G, The content of an oily component that is liquid at 25° C. and selected from the group consisting of the component B and ester oils other than the component B, hydrocarbon oils, and silicone oils is 5.0% by mass or more and 25.0% by mass or less, Ingredient G: powder.

6. The water-in-oil emulsified cosmetic composition according to claim 1 or 2, wherein: The water-in-oil emulsified cosmetic composition is a hair cosmetic composition.

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