Water-in-oil type emulsified cosmetic composition

Abstract

To provide a water-in-oil type emulsified cosmetic composition that exhibits excellent stability and usability while reducing the use of petroleum-derived materials and silicone compounds.SOLUTION: A water-in-oil type emulsified cosmetic composition comprises (A) 5.0-50.0 wt.% of an oily component having a natural origin index of 0.90 or more for the total oily component as calculated from ISO16128, (B) 1.0-40.0 wt.% of a powder, (C) 1.5-8.0 wt.% of a lipophilic surfactant, (D) 0.1-3.0 wt.% of a lipophilic thickener, (E) 3.0-20.0 wt.% of a polyhydric alcohol, and (F) water.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] In recent years, there has been a growing demand for cosmetics that minimize the use of petroleum-derived raw materials and silicone compounds, etc., in light of concerns about their impact on the environment, animals, plants, and the human body. However, petroleum-derived raw materials and silicone compounds are essential raw materials for ensuring the stability of cosmetics and providing them with excellent usability. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-188370 Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 discloses a makeup cosmetic that has excellent hiding power, a natural finish, and is stable and easy to use. However, the makeup cosmetic disclosed in Patent Document 1 contains a silicone compound as an oil-soluble film-forming agent and / or oily component. Furthermore, cyclomethicone, a type of silicone compound contained as a base in the makeup cosmetic disclosed in Patent Document 1, is a petroleum-derived raw material. Therefore, there has been a demand for a cosmetic that has excellent stability and ease of use while reducing, or preferably completely eliminating, petroleum-derived raw materials and silicone compounds. Therefore, an object of the present invention is to provide a water-in-oil emulsion cosmetic composition that has reduced amounts of petroleum-derived raw materials and silicone compounds and has excellent stability and ease of use. [Means for solving the problem]

[0005] The present inventors have conducted extensive research into water-in-oil emulsion cosmetic compositions that have reduced amounts of petroleum-derived raw materials and silicone compounds and that have excellent stability and ease of use. As a result, they have surprisingly found that by blending components (A) to (F), it is possible to obtain water-in-oil emulsion cosmetic compositions that have excellent stability and ease of use. In the present invention, in consideration of concerns about the impact on the environment, human body, etc., oily components that are not derived from petroleum or silicone are mainly used as oily components. Oily components that are not derived from petroleum or silicone are often inferior in stability and usability to petroleum-derived raw materials or silicone compounds. The present inventors have succeeded in obtaining a water-in-oil emulsion cosmetic composition that has excellent stability and usability by adopting the composition of the present invention, even when oily components that are not derived from petroleum or silicone are mainly used. The present invention is based on this finding. Accordingly, the present invention relates to the following: [1] (A) 5.0 to 50.0% by weight of oil components with a natural origin index of 0.90 or more as calculated according to ISO 16128 (B) Powder 1.0~40.0% by weight (C) Lipophilic surfactant 1.5 to 8.0% by weight (D) Lipophilic thickener 0.1 to 3.0% by weight (E) Polyhydric alcohol 3.0 to 20.0% by weight (F)Water A water-in-oil emulsion cosmetic composition comprising: [2] The water-in-oil emulsion cosmetic composition according to [1], comprising (C) three or more lipophilic surfactants selected from polyglycerin fatty acid esters composed of fatty acids having 12 to 22 carbon atoms and sorbitan fatty acid esters composed of fatty acids having 12 to 22 carbon atoms. [3] The water-in-oil emulsion cosmetic composition according to [1] or [2], which contains an organically modified clay mineral and a sugar fatty acid ester as the lipophilic thickener (D). [4] The water-in-oil emulsion cosmetic composition according to any one of [1] to [3], which has a natural origin index of 90% or more as a water-in-oil emulsion cosmetic composition calculated according to ISO 16128. [5] The water-in-oil emulsion cosmetic composition according to any one of [1] to [4], which is a makeup cosmetic. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide a water-in-oil emulsion cosmetic composition that has reduced amounts of petroleum-derived raw materials and silicone compounds and has excellent stability and ease of use. DETAILED DESCRIPTION OF THE INVENTION

[0007] The present invention will be described in detail below. In this specification, unless otherwise specified, the expression "a to b" for numerical values ​​a and b is equivalent to "a or more and b or less." In other words, the expression "a to b" includes the numerical values ​​a and b at both ends. In such an expression, when a unit is added only to the numerical value b, the unit is also applied to the numerical value a.

[0008] (Component A: an oil component with a natural origin index of 0.90 or higher as calculated according to ISO 16128) The composition of the present invention contains 5.0 to 50.0 wt % of oily components having a natural origin index calculated according to ISO 16128 of 0.90 or more for the entire oily components. Examples of oily components include squalane, white beeswax, Japan wax, spermaceti, carnauba wax, candelilla wax, montan wax, cetyl alcohol, stearyl alcohol, isostearyl alcohol, lauryl alcohol, behenyl alcohol, glyceryl tribehenate, avocado oil, linseed oil, almond oil, argania spinosa kernel oil, olive oil, cacao butter, sesame oil, wheat germ oil, safflower oil, shea butter, turtle oil, camellia oil, persic oil, castor oil, grape seed oil, jojoba butter, macadamia nut oil, macadamia nut oil fatty acid phytosteryl, coconut oil, rosehip oil, soybean oil, egg yolk oil, hydrogenated castor oil, hydrogenated oil, beef tallow, mink oil, lanolin, and oily components extracted from these components. In addition, oily components prepared from fossil fuels include, for example, silicones (chain silicone oils such as methylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; and cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane), mineral oil (liquid paraffin), petrolatum, and ceresin.

[0009] "The natural origin index calculated according to ISO 16128 is 0.90 or more for the entire oily components" means that the natural origin index calculated for the "entire" oily components contained in the composition of the present invention, rather than for individual oily components, is 0.90 or more. The natural origin index calculated for the entire oily components is preferably 0.92 or more, more preferably 0.94 or more, even more preferably 0.95 or more, still more preferably 0.97 or more, and most preferably 0.99 or more. In the composition of the present invention, the oil component preferably contains multiple components, and the natural origin index of each oil component is preferably 0.90 or higher, more preferably 0.92 or higher, even more preferably 0.94 or higher, even more preferably 0.95 or higher, even more preferably 0.97 or higher, and most preferably 0.99 or higher. When the oil component contains multiple components, it may contain a hydrocarbon oil having 10 to 22 carbon atoms with a high natural origin index and an ester oil that is liquid at 25°C with a high natural origin index.

[0010] Examples of hydrocarbon oils having 10 to 22 carbon atoms and a high index of natural origin include light isoparaffin, plant-derived squalane, animal-derived squalane, undecane, tridecane, and isododecane. Ester oils with a high natural index that are liquid at 25°C include octyldodecyl myristate, caprylic / capric triglyceride, diglyceryl diisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, pentaerythrityl tetraisostearate, octyldodecyl stearoyloxystearate, hexyl laurate, isoacyl laurate, coco-caprylate / caprate, isocetyl myristate, and isostearyl isostearate.

[0011] The content of component A based on the total amount of the composition is not particularly limited as long as the effects of the present invention are obtained, but it can be 5.0 to 50.0 wt %, 15.0 to 45.0 wt %, 20.0 to 40.0 wt %, or 25.0 to 35.0 wt %.

[0012] The composition of the present invention may contain a petroleum-derived oily component such as silicone, but the content thereof is preferably 5.0 wt % or less, more preferably 4.0 wt % or less, even more preferably 3.0 wt % or less, even more preferably 2.0 wt % or less, even more preferably 1.0 wt % or less, and most preferably 0 wt %, based on the total amount of the composition.

[0013] 《Powder; Component B》 The powder of component B is not limited as long as it is used in the relevant technical field as a color pigment, extender pigment, or UV scattering agent and does not impair the effects of the present invention. Examples of such powders include inorganic powders (e.g., titanium oxide, zinc oxide, fine particle titanium oxide, low-temperature calcined zinc oxide, talc, mica, alumina, kaolin, sericite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate, sodium silicate, hydrous silicic acid, silicic acid anhydride, hydroxyapatite, zeolite, boron nitride, yellow iron oxide, black iron oxide, red iron oxide, barium sulfate, aluminum hydroxide, manganese violet, chromium oxide, chromium hydroxide, titanium dioxide, etc.). cobalt phosphate, ultramarine, ferric iron, aluminum powder, etc.); and organic powders (for example, nylon powder, polyethylene powder, alkyl polymethacrylate, polystyrene, alkyl acrylate-styrene copolymer, cellulose powder, crystalline cellulose, cellulose acetate, lipoamino acid powder, organic pigments (Red 201, Red 202, Red 226, etc.), aluminum lake organic pigments (Blue 1, Blue 2, Red 2, Red 3, Red 102, Red 104, Yellow 3, Yellow 5, etc.), β-carotene, carmine, gardenia yellow, etc.).

[0014] The powder may be surface-treated to improve dispersibility in oily components and stability of emulsions. Examples of surface treatments include amino acid treatments such as N-acylglutamic acid, lecithin treatment, metal soap treatment, fatty acid treatment, glycerin fatty acid ester treatment, glycolipid treatment, and alkyl phosphate ester treatment. Examples of surface-treated powders include hydrophobized titanium oxide fine particle, hydrophobized titanium oxide, and hydrophobized iron oxide.

[0015] The powder contained in the composition of the present invention has a natural origin index calculated according to ISO 16128 of preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.99 or more for the entire powder. When multiple powders are contained, the natural origin index of all the contained powders is preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.99 or more. It is preferable not to use powders that have been surface-treated with petroleum-derived materials, such as silicones such as methylhydrogenpolysiloxane and methylpolysiloxane.

[0016] The content of component B based on the total amount of the composition is not particularly limited as long as the effects of the present invention are obtained, but it can be 1.0 to 40.0 wt %, 5.0 to 38.0 wt %, 10.0 to 35.0 wt %, 15.0 to 32.0 wt %, or 20.0 to 30.0 wt %.

[0017] Lipophilic surfactant (component C) The composition of the present invention contains a lipophilic surfactant, which is added to the composition of the present invention for the purposes of forming an emulsion and imparting stability. The lipophilic surfactant is not particularly limited as long as it does not impair the effects of the present invention. As the lipophilic surfactant, a lipophilic surfactant having an HLB value of, for example, 1.0 to 8.5, preferably 1.5 to 7.0, and more preferably 2.0 to 6.0 can be used.

[0018] The composition of the present invention preferably contains at least two lipophilic surfactants, more preferably at least three lipophilic surfactants. When the composition of the present invention contains two lipophilic surfactants, it preferably contains at least one polyglycerin fatty acid ester-based lipophilic surfactant (hereinafter sometimes referred to as component C1) and at least one sorbitan fatty acid ester-based lipophilic surfactant (hereinafter sometimes referred to as component C2). When the composition of the present invention contains three lipophilic surfactants, it preferably contains at least two polyglycerin fatty acid ester-based lipophilic surfactants and at least one sorbitan fatty acid ester-based lipophilic surfactant, and most preferably contains polyglyceryl monoisostearate, condensed polyglyceryl ricinoleate, and sorbitan sesquiisostearate. When the composition of the present invention contains at least two polyglycerin fatty acid ester-based lipophilic surfactants and at least one sorbitan fatty acid ester-based lipophilic surfactant, usability and stability are further improved.

[0019] Component C1 is preferably a fatty acid having 12 to 22 carbon atoms in the fatty acid moiety, more preferably a fatty acid having 14 to 22 carbon atoms, and most preferably a fatty acid having 16 to 20 carbon atoms. Specific examples of component C1 include polyglyceryl monoisostearate, condensed polyglyceryl ricinoleate, polyglyceryl diisostearate, polyglyceryl decaisostearate, polyglyceryl decaoleate, and polyglyceryl triisostearate. It is preferable to use both polyglyceryl monoisostearate and condensed polyglyceryl ricinoleate, and it is preferable to use polyglyceryl monoisostearate having a glycerin polymerization number of 2 to 10. It is preferable to use condensed polyglyceryl ricinoleate having a glycerin polymerization number of 3 to 6. Component C2 includes sorbitan sesquiisostearate, sorbitan diisostearate, sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, sorbitan sesquioleate, etc. Sorbitan sesquiisostearate is the most preferred. When the composition of the present invention contains component C1 and component C2, the content of component C1 relative to the content of component C2 (content of component C1 / content of component C2) is, for example, 0.3 to 5.0, 0.5 to 4.0, 0.7 to 3.5, 1.0 to 3.2, 1.5 to 3.0, or 2.0 to 3.0.

[0020] The content of component C based on the total weight of the composition is not particularly limited as long as the effects of the present invention are obtained, but may be 1.5 to 8.0 wt%, 2.0 to 7.5 wt%, 2.5 to 7.0 wt%, 3.0 to 6.5 wt%, or 3.5 to 6.0 wt%. If an excessive amount of lipophilic surfactant, specifically more than 8.0 wt%, is added to the composition of the present invention, the usability of the composition will deteriorate. When the composition of the present invention contains component C1 and component C2, the content of component C1 can be, for example, 0.5 to 7.0 wt %, 1.5 to 6.0 wt %, or 2.5 to 5.0 wt %. The content of component C2 can be, for example, 0.3 to 6.0 wt %, 0.5 to 5.0 wt %, or 1.0 to 3.0 wt %.

[0021] The lipophilic surfactant contained in the composition of the present invention has a natural origin index calculated according to ISO 16128 of the entire lipophilic surfactant, preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.99 or more.When a plurality of lipophilic surfactants are contained, the natural origin index of all the lipophilic surfactants contained is preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.99 or more. The composition of the present invention may contain a surfactant other than component C, as long as the effects of the present invention are not impaired. It is preferable that the composition of the present invention does not contain, as lipophilic surfactants, lipophilic surfactants derived from petroleum or silicone, such as polyoxyethylene-methylpolysiloxane copolymer, poly(oxyethylene-oxypropylene)methylpolysiloxane copolymer, polyglycerin-modified silicone, alkyl-modified polyether-modified silicone, polyoxyethylene alkyl ether, and polyoxyethylene hydrogenated castor oil.

[0022] Lipophilic thickener (ingredient D) The composition of the present invention contains a lipophilic thickener. The lipophilic thickener is added to improve stability and usability. As the lipophilic thickener, an organically modified clay mineral (hereinafter sometimes referred to as component D1) or a sugar fatty acid ester (hereinafter sometimes referred to as component D2) is preferably used, and it is more preferable to use both an organically modified clay mineral and a sugar fatty acid ester. When the composition of the present invention contains both an organically modified clay mineral and a sugar fatty acid ester, usability and stability are further improved.

[0023] Component D1 that can be used in the composition of the present invention includes known clay minerals such as hectorite, montmorillonite, saponite, bentonite, and smectite, which have been treated with an organic cation. The organic cation used to modify the clay mineral can be one or more selected from ammonium compounds such as alkylammonium chlorides, with distearyldimonium chloride being preferred. Specific examples of component D1 that can be used in the composition of the present invention include dimethyl distearyl ammonium hectorite, dimethyl distearyl ammonium bentonite, benzyl dimethyl stearyl ammonium hectorite, dioctadecyl dimethyl ammonium salt-modified montmorillonite, octadecyl dimethyl benzyl ammonium salt-modified montmorillonite, dihexadecyl dimethyl ammonium salt-modified montmorillonite, and dimethyl distearyl ammonium smectite.

[0024] Examples of component D2 that can be used in the composition of the present invention include dextrin fatty acid esters such as dextrin palmitate, dextrin oleate, and dextrin stearate; sucrose fatty acid esters such as sucrose distearate, sucrose coconut fatty acid, and sucrose tetrastearate triacetate; and inulin fatty acid esters such as inulin stearate. When the composition of the present invention contains component D1 and component D2, the content of component D1 relative to the content of component D2 (content of component D1 / content of component D2) is, for example, 0.5 to 5.0, 1.0 to 4.0, 1.5 to 3.5, or 1.5 to 2.5.

[0025] The content of component D based on the total amount of the composition is not particularly limited as long as the effects of the present invention are obtained, but may be 0.1 to 3.0 wt %, 0.5 to 2.5 wt %, or 1.0 to 2.0 wt %. If an excessive amount of lipophilic thickener, specifically more than 3.0 wt %, is added to the composition of the present invention, the usability of the composition will deteriorate. When the composition of the present invention contains component D1 and component D2, the content of component D1 can be, for example, 0.3 to 2.5 wt % or 0.5 to 2.0 wt %, and the content of component D2 can be, for example, 0.2 to 1.5 wt % or 0.3 to 1.0 wt %.

[0026] The lipophilic thickener contained in the composition of the present invention has a natural origin index calculated according to ISO 16128 of preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.99 or more. When multiple lipophilic thickeners are contained, the natural origin index of all the contained lipophilic thickeners is preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, and most preferably 0.97 or more.

[0027] <Polyhydric alcohol; ingredient E> The composition of the present invention contains a polyhydric alcohol, which is added to improve the feel during use (moisturizing properties), preservative properties, and emulsion stability. The polyhydric alcohol is not particularly limited as long as the effects of the present invention are obtained, but examples thereof include diethylene glycol, triethylene glycol, trimethylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,11-undecanediol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, glycerin, diglycerin, polyglycerin, 3-methyl-1,3-butanediol, 1,3-butylene glycol, 1,2-octanediol, 1,2-decanediol, 1,2-dodecanediol, 1,2-pentanediol, 1,2-hexanediol, and caprylyl glycol. The polyhydric alcohol is preferably a polyhydric alcohol having 3 to 5 carbon atoms and 2 to 3 oxygen atoms, and more preferably 1,3-butylene glycol. Polyhydric alcohols are commonly used in cosmetics to provide moisturizing and antiseptic properties.

[0028] The content of component E based on the total weight of the composition is not particularly limited as long as the effects of the present invention are obtained, but may be 3.0 to 20.0 wt %, 5.0 to 18.0 wt %, 8.0 to 16.0 wt %, or 10.0 to 15.0 wt %. If an excessive amount of polyhydric alcohol, specifically more than 20.0 wt %, is added to the composition of the present invention, the usability of the composition may deteriorate.

[0029] The polyhydric alcohol contained in the composition of the present invention has a natural origin index of the entire polyhydric alcohol calculated according to ISO 16128 of preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.98 or more. When multiple polyhydric alcohols are contained, the natural origin index of all the contained polyhydric alcohols is preferably 0.90 or more, more preferably 0.92 or more, even more preferably 0.94 or more, even more preferably 0.95 or more, even more preferably 0.97 or more, and most preferably 0.98 or more.

[0030] Water; Component F The composition of the present invention contains water. The content of component F in the composition of the present invention based on the total weight of the composition is not particularly limited as long as the effects of the present invention are obtained, but it can be, for example, 15.0 to 50.0 wt %, 20.0 to 45.0 wt %, 25.0 to 40.0 wt %, or 28.0 to 35.0 wt %. The content of water may be more or less than the content of the oily component.

[0031] <Hydrophilic surfactant; ingredient G> The composition of the present invention may contain a hydrophilic surfactant. By containing a hydrophilic surfactant, the preservative properties of the composition of the present invention can be improved. Examples of the hydrophilic surfactant include polyglyceryl monolaurate.

[0032] The content of component G based on the total amount of the composition is not particularly limited as long as the effects of the present invention are obtained, but it can be, for example, 0.001 to 1.0% by weight.

[0033] <<Water-in-oil emulsion cosmetic composition>> The composition of the present invention can be produced according to a conventional method, and can be made into a dosage form such as a liquid, emulsion, paste, cream, gel, or solid. The composition of the present invention can be provided as makeup cosmetics such as a makeup base, foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow cream, overcoat, and lipstick; or as skin care cosmetics such as sunscreen, but is particularly suitable as a makeup cosmetic, particularly a foundation. In view of recent trends in environmental protection, it is preferable that the cosmetic composition of the present invention does not contain microplastic beads (MPB).

[0034] The composition of the present invention has a natural origin index calculated for the entire composition of preferably 90% or more, more preferably 92% or more, even more preferably 94% or more, even more preferably 95% or more, even more preferably 97% or more, and most preferably 99% or more. In this specification, the natural origin index calculated for the entire composition includes water.

[0035] <Silicone compounds> The composition of the present invention preferably does not contain a silicone compound. In this specification, the term "silicone compound" refers to compounds having a siloxane (-Si-O-Si-) structure in the molecule (e.g., silicones and siloxanes) and silanes (monosilane, oligosilane, polysilane, and silane derivatives such as alkylsilane and alkoxysilane). The composition of the present invention preferably does not contain one or more of silicone oil, silicone surfactant and the powder that is surface-treated with silicone compound, and more preferably does not contain any of these components.Even if the composition of the present invention contains silicone oil, silicone surfactant and / or the powder that is surface-treated with silicone compound, the total content of these components is preferably 5.0 wt% or less, more preferably 4.0 wt% or less, even more preferably 3.0 wt% or less, even more preferably 2.0 wt% or less, even more preferably 1.0 wt% or less, most preferably 0.1 wt% or less based on the total amount of composition.

[0036] 《Optional ingredients》 In addition to the above-mentioned components, the composition of the present invention may contain appropriate components that are usually incorporated into cosmetics, such as preservatives, within the scope that does not impair the effects of the present invention. [Example]

[0037] The present invention will be described in more detail below with reference to examples, but these examples are not intended to limit the scope of the present invention. Unless otherwise specified, % indicates % by weight.

[0038] In this example, foundations were prepared with the component compositions shown in Table 1. All of the prepared foundations had a natural origin index of 99% or more. ·Raw materials used (Component A) Natural origin index of component A as a whole: 0.99 Light isoparaffin (natural origin index 1.00) Plant-derived squalane (natural index 1.00) Octyldodecyl myristate (natural origin index 0.99) Caprylic / capric triglyceride (natural index 1.00) Macadamia nut oil (natural origin index 1.00) ·Shea butter (natural origin index 1.00) (Component B) Hydrophobic treated titanium dioxide particles (natural origin index 1.00) Hydrophobic titanium dioxide (natural origin index 0.97) Hydrophobic treated iron oxide (natural origin index 1.00) Talc (natural origin index 1.00) (Component C) Polyglyceryl monoisostearate (HLB value 4.7; natural origin index 1.00) Condensed Polyglyceryl Ricinoleate (HLB 3.3; Natural Origin Index 1.00) Sorbitan sesquiisostearate (HLB value 4.5; natural origin index 1.00) (Component D) Dimethyl distearyl ammonium hectorite (natural index 0.98) Palmitic acid dextrin (natural origin index 1.00) (Component E) 1,3-butylene glycol (natural origin index 0.98) (hydrophilic surfactant) Polyglyceryl monolaurate For example, the natural origin index of component A as a whole in Example 1 is calculated as (8 / 26.2×1.0+5 / 26.2×1.00+5 / 26.2×0.99+7 / 26.2×1.00+1 / 26.2×1.00+0.2 / 26.2×1.00)=0.99.

[0039] Each evaluation item was evaluated as follows: ·Usability Ten evaluation panelists applied the prepared foundation to their faces and conducted a sensory evaluation based on the feel of the foundation when applied. The evaluation criteria were as follows: ◎: Seven or more people answered that it spreads smoothly and blends well with the skin. 〇: 5-6 people answered that it spreads smoothly and blends well with the skin. △: 3-4 people answered that it spreads smoothly and blends well with the skin. ×: Less than 2 people answered that it spreads smoothly and blends well with the skin

[0040] ·Stability The prepared bulk was filled into a glass bottle and stored under various conditions (room temperature, 40°C, cycle (-5°C to 40°C / day)) for 30 days, and the state change was evaluated. ◎: No change in any condition 〇: There was some change, but it was within the range that did not cause any problems in use. △: Solidification or separation was confirmed under one condition ×: Solidification or separation was observed under two or more conditions.

[0041] In terms of usability and stability, any product with even one △ or × was deemed outside the acceptable range. The results are shown in the table.

[0042] [Table 1]

[0043] Examples 1 to 9 Examples 1 to 9, which contained all of the components A to F in the specified amounts, were judged to be at a level in terms of usability and stability that allowed them to be used as products. In Examples 5 and 6, which contained only two types of lipophilic surfactants as Component C, both usability and stability were good and were judged to be at a level suitable for use as products. In Examples 7 and 8, which contained only an organically modified clay mineral as component D, both usability and stability were good and were judged to be at a level suitable for use as a product. Examples 2 and 3, which contain a polyglycerol fatty acid ester composed of two types of fatty acids having 12 to 22 carbon atoms, a sorbitan fatty acid ester composed of one type of fatty acid having 12 to 22 carbon atoms, an organically modified clay mineral, and a sugar fatty acid ester, both showed particularly good usability and stability.

[0044] Comparative Examples 1 to 5 In Comparative Example 1, which did not contain component C, both usability and stability were significantly worsened. In Comparative Example 2, which contained an excessive amount of component C, usability was significantly worsened. In Comparative Example 3, which did not contain component D, both usability and stability were worsened. In Comparative Example 4, which contained an excessive amount of component D, usability was worsened. In Comparative Example 5, which did not contain component E, both usability and stability were worsened and it was determined that the product was unacceptable. [Industrial Applicability]

[0045] According to the present invention, it is possible to provide a water-in-oil emulsion cosmetic composition that has reduced amounts of petroleum-derived raw materials and silicone compounds and has excellent stability and ease of use.

Claims

1. (A) 5.0 to 50.0% by weight of oily components having a natural origin index calculated according to ISO 16128 of 0.90 or more as a whole. (B) Powder 1.0 to 40.0% by weight (C) Lipophilic surfactant 1.5 to 8.0% by weight (D) Lipophilic thickener 0.1 to 3.0% by weight (E) Polyhydric alcohol 3.0 to 20.0% by weight (F) Water A water-in-oil emulsion cosmetic composition comprising:

2. 2. The water-in-oil emulsion cosmetic composition according to claim 1, comprising, as (C) lipophilic surfactants, three or more selected from the group consisting of polyglycerol fatty acid esters composed of fatty acids having 12 to 22 carbon atoms and sorbitan fatty acid esters composed of fatty acids having 12 to 22 carbon atoms.

3. 3. The water-in-oil emulsion cosmetic composition according to claim 1, comprising an organically modified clay mineral and a sugar fatty acid ester as the lipophilic thickener (D).

4. 3. The water-in-oil emulsion cosmetic composition according to claim 1, wherein the water-in-oil emulsion cosmetic composition has a natural origin index of 90% or more as calculated in accordance with ISO 16128.

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

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