Water-in-oil emulsion cosmetic

Abstract

This product provides a water-in-oil emulsion cosmetic that does not slip during application, forms a uniform cosmetic film, and exhibits excellent emulsification stability. [Solution] The following components (A) to (E); (A) Volatile hydrocarbon oils (B) One or more selected from dimethylpolysiloxane and disiloxane (C) Ethanol (D) Metal oxides (E) Nonionic surfactants (F)Water An oil-in-oil emulsion cosmetic containing the following, wherein the mass ratio of component (A) to component (B) is (A) / (B) = 0.1 to 10.

Description

Technical Field

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

Background Art

[0002] Water-in-oil emulsion cosmetics are widely used in skincare cosmetics, makeup cosmetics, especially base makeup items such as foundations.

[0003] Emulsion cosmetics that can provide not only moisture but also oil to the skin have been extensively studied in the cosmetic field as a dosage form with high added value. Generally, emulsion cosmetics are roughly classified into oil-in-water emulsion cosmetics and water-in-oil emulsion cosmetics according to the continuous phase. Water-in-oil emulsion cosmetics cover the skin surface with an oil film, prevent the evaporation of moisture, and protect the skin from drying. Therefore, they have excellent characteristics such as emollient effect, moisturizing effect, and treatment effect on the skin. So far, various improvements have been made to water-in-oil emulsion cosmetics to meet both the usability such as smooth spreading and adhesion to the skin and the stability over time.

[0004] For example, technologies related to water-in-oil emulsion cosmetics containing hydrophobic silica, water-soluble polymers, lipophilic surfactants with an HLB value of 7 or less, oil, and water (see, for example, Patent Document 1), and technologies related to water-in-oil emulsion cosmetics containing 0.05 to 10.0% by weight of polyether-modified silicone, 0.05 to 5.0% by weight of water-soluble polymer electrolyte, and 0.05 to 5.0% by weight of inorganic salts and / or organic salts, and containing either one or both of glycerin branched fatty acids and / or unsaturated fatty acid esters, and sorbitan branched fatty acids and / or unsaturated fatty acid esters (see, for example, Patent Document 2). Also, there is a technology related to a water-in-oil emulsion composition containing one or more selected from glycerin monooleate, glycerin monoisostearate, and polyoxyethylene glyceryl monoisostearate, an aqueous component, and an oily component containing (C) a solid oil component and satisfying specific conditions (see, for example, Patent Document 3).

Prior Art Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2006-160714 [Patent Document 2] Japanese Patent Publication No. 2002-348210 [Patent Document 3] Japanese Patent Publication No. 2008-24630 [Disclosure of the Invention] [Problems that the invention aims to solve]

[0006] The present invention aims to provide a water-in-oil emulsion cosmetic that does not slip during application, forms a uniform cosmetic film, and exhibits excellent emulsification stability. [Means for solving the problem]

[0007] In view of these circumstances, the inventors diligently studied how to achieve a water-in-oil emulsion cosmetic that spreads smoothly on the skin and forms a uniform cosmetic film. As a result, they discovered that by combining a water-in-oil emulsion cosmetic containing a metal oxide and a nonionic surfactant with a volatile hydrocarbon and a short-chain silicone among volatile silicones in a ratio of 0.1 to 1.0, and further including ethanol, a water-in-oil emulsion cosmetic that spreads smoothly without streaks and forms a uniform cosmetic film can be realized. Based on these findings, the inventors completed the present invention.

[0008] In other words, the present invention comprises the following components (A) to (E); (A) Volatile hydrocarbon oils (B) One or more selected from dimethylpolysiloxane and disiloxane (C) Ethanol (D) Metal oxides (E) Nonionic surfactants (F)Water The present invention provides a water-in-oil emulsion cosmetic containing the following, wherein the mass ratio of component (A) to component (B) is (A) / (B) = 0.1 to 10. [Effects of the Invention]

[0009] The present invention provides a water-in-oil emulsion cosmetic that does not slip during application, forms a uniform cosmetic film, and exhibits excellent emulsification stability. [Best Mode for Carrying Out the Invention]

[0010] The details of the present invention are described below. In this specification, "~" means a range including the values ​​before and after it. In this invention, "average particle diameter" refers to the median diameter D50 value obtained by measurement using an image analysis device (Luzex AP, manufactured by Nireco). In the case of an asymmetric shape, in this invention, the median diameter D50 obtained from the distribution of the largest particle diameter is taken as the average particle diameter.

[0011] In the present invention, component (A), the volatile hydrocarbon oil, is a hydrocarbon oil having a boiling point of 260°C or lower at atmospheric pressure. Such volatile hydrocarbons are not particularly limited, but examples include light isoparaffins, isododecane, isohexadecane, etc., and one or more of these may be used in combination. Commercial products include IP Solvent 1620, IP Solvent 2028 (both manufactured by Idemitsu Petrochemical Co., Ltd.), and PERMETHYL 99A (manufactured by PRESPERS). Among these, from the viewpoint of non-slip and uniform cosmetic film formation, one or more selected from the group consisting of isododecane, isohexadecane, and light liquid isoparaffins are preferred, and isododecane is even more preferred as the volatile hydrocarbon.

[0012] In the present invention, the content of component (A) is not particularly limited, but it is preferably 1 to 30% by mass (hereinafter simply abbreviated as "%") relative to the total amount of cosmetic composition, and more preferably 5 to 20%. Within this range, it is more preferable because it is superior in terms of non-slip properties and uniform cosmetic film.

[0013] One or more of the components (B) of the present invention, selected from dimethylpolysiloxane and disiloxane, are dimethylsiloxane or polymers thereof, represented by the following general formula. (CH3)3SiO[Si(CH3)2O] n Si(CH3)3(1) (In the formula, n is between 0 and 2000.) In the present invention, component (B) disiloxane is the compound n=0 in formula (1) above. Component (B) in the present invention is not particularly limited as long as it is commonly used in cosmetics, and various kinematic viscosities can be used. For example, kinematic viscosities at 25°C can range from 0.65 to 1,000,000 CS, but 0.65 to 100 CS is preferred, 0.65 to 10 CS is more preferred, and 0.65 to 5 CS is even more preferred. Within this range, it is preferable because it is superior in terms of non-slippage and uniform cosmetic film. In the present invention, from the viewpoint of non-slippage and uniform cosmetic film, it is preferable to use one or more volatile compounds selected from dimethylpolysiloxane and disiloxane. Here, volatility refers to compounds that volatilize at room temperature with a low boiling point (boiling point of 260°C or less at normal pressure). Component (B) of the present invention can be a commercially available product, such as KF-96L-0.65cs, KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96L-5cs, KF-96L-10cs, KF-96L-20cs, KF-96L-50cs, KF-96L-100cs, KF-96L-1000cs (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0014] In the present invention, the content of component (B) is not particularly limited, but it is preferably 0.5 to 30% and more preferably 1 to 20% relative to the total amount of cosmetic composition. Within this range, it is preferable because it provides superior non-stickiness and a uniform cosmetic film.

[0015] In the present invention, the mass ratio of component (A) to component (B) described above is (A) / (B) = 0.1 to 10, and the product can be obtained by appropriately including them within this range. However, it is preferable to further specify the amount ratio of the components to be included, as this can lead to a higher effect. Such an amount ratio is not particularly limited, but the lower limit of the mass ratio of component (A) to component (B) (A) / (B) is preferably 0.1 or higher, more preferably 0.5 or higher, and even more preferably 0.7 or higher. The upper limit is preferably 10 or lower, more preferably 5 or lower, and even more preferably 3 or lower. This range is preferable because it provides superior non-slipperiness and emulsification stability. Furthermore, it has been found that by setting the mass ratio of components (A) and (B) of the present invention to this extent, a user experience similar to that of conventional water-in-oil emulsion cosmetics using volatile oils mainly composed of cyclic silicone oil can be obtained.

[0016] In this invention, component (C) is ethanol. Any commercially available ethanol commonly used in cosmetics can be used as component (C) in this invention, for example, 95-degree undenatured ethanol, various types of ethanol, etc.

[0017] In the present invention, the content of component (C) is not particularly limited, but is preferably 0.1 to 25%, more preferably 0.2 to 20%, and especially preferably 0.5 to 15% relative to the total amount of cosmetic composition. This range is more preferable because it provides superior non-slip properties and a uniform cosmetic film.

[0018] The metal oxide as component (D) in the present invention is not particularly limited by the shape such as spherical, plate-like, needle-like, etc., the particle diameter such as smoke-like, fine particles, pigment grade, the particle structure such as porous or non-porous, etc., as long as it is a metal oxide usually used in cosmetics, and any of them can be used. Component (D) of the present invention can use, for example, oxides of elements such as Al (aluminum), Mg (magnesium), Sn (tin), Zn (zinc), Co (cobalt), Fe (iron), Zr (zirconium), Ti (titanium), and Ce (cerium). Component (D) of the present invention has the function of coloring cosmetics and imparting covering power. Specifically, examples include iron oxides such as aluminum oxide, magnesium oxide, tin oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, titanium dioxide, cerium oxide, etc. These may be used alone or in combination of two or more. Among these, one or more selected from the group consisting of zinc oxide, titanium dioxide, and iron oxide are preferred, and zinc oxide and / or titanium dioxide are more preferred.

[0019] In the present invention, the metal oxide may be surface-treated by known methods using, if necessary, silicone compounds, silane treatment, fluorine compounds, metal soaps, collagen, hydrocarbons, higher fatty acids, lecithin, higher alcohols, esters, waxes, waxes, amino acids, surfactants, etc., or a compound thereof may be used. In the present invention, hydrophobic treatment of the surface of the metal oxide is particularly preferred because it prevents aggregation of metal oxides, resulting in superior emulsification stability and a uniform cosmetic film. As the surface treatment agent, one or more selected from the group consisting of metal soaps, amino acids, silicone compounds, and lecithin is preferred, and one or more selected from the group consisting of metal soaps, amino acids, and silicone compounds is more preferred. Here, the metal soap of the surface treatment agent in the present invention is one neutralized with a fatty acid and a base, and examples include zinc stearate, magnesium stearate, zinc myristate, and zinc laurate. Furthermore, the amino acid of the surface treatment agent in the present invention includes not only amino acids such as theanine, but also salts of amino acids and their derivatives. Examples include N-acylated amino acids or their salts, specifically, disodium stearoyl glutamate and sodium dilauroyl glutamate lysine. The silicone compounds used as surface treatment agents in this invention include methylpolysiloxane and hydrogenpolysiloxane. The silane treatments used as surface treatment agents in this invention include, for example, triethoxycaprylylsilane and aminopropyltriethoxysilane. In this invention, it is preferable to use a combination of multiple surface-treated metal oxides, and in particular, to use a combination of two or more metal oxides surface-treated with different surface treatment agents. The amount of surface treatment agent applied to the metal oxide in this invention is not particularly limited, but is preferably 0.5-5%, more preferably 1-4%, and even more preferably 2-3%.

[0020] In the present invention, the content of component (D) is not particularly limited, but is preferably 0.1 to 25%, more preferably 0.5 to 20%, and even more preferably 1 to 15% relative to the total amount of cosmetic composition. This range is preferable because it results in a more uniform cosmetic film.

[0021] Component (E), the nonionic surfactant in the present invention, has both a lipophilic group and a hydrophilic group in the same molecule and is a surfactant that exhibits nonionic properties when dissolved in water. The HLB of component (E) in the present invention is not particularly limited. However, since the present invention is of the water-in-oil type, from the viewpoint of emulsion stability, the HLB is preferably 7 or less, more preferably 5 or less. In the present invention, the lower limit value of the HLB is not particularly limited, and is preferably 1 or more, more preferably 2 or more. Component (E) in the present invention is not particularly limited as long as it is a nonionic surfactant, and may be linear, may contain a branched structure, or any of these, and one or more of these can be contained in combination as necessary.

[0022] Here, in the present invention, HLB is a value representing the balance between the hydrophilicity and lipophilicity of the surfactant, and in the present invention, specifically, it can be obtained by the following Kawakami's formula. HLB = 7 + 11.7 log (Mw / Mo) (Here, Mw represents the molecular weight of the hydrophilic group and Mo represents the molecular weight of the new oil group, respectively.)

[0023] In the present invention, component (E) is not particularly limited as long as it is a nonionic surfactant and is obtained by appropriate selection. However, using two or more in combination is preferable because a higher effect can be expected. In particular, using (E1) a silicone surfactant and (E2) a sugar fatty acid ester or a glycerin fatty acid ester is more preferable because it is more excellent in emulsion stability.

[0024] In (E1), examples of silicone surfactants include polyglycerin-modified silicones such as lauryl polyglyceryl 3-polydimethylsiloxyethyl dimethicone, PEG-9 methyl ether dimethicone, PEG-10 dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG-9 polydimethylsiloxyethyl dimethicone, polyoxyethylene-butylene-dimethylpolysiloxane copolymer, and polyoxyethylene-polyoxypropylene-butylene-dimethylpolysiloxane copolymer. Among these, polyether-modified silicones or polyglycerin-modified silicones are preferred, and polyether-modified silicones are more preferred. Specifically, one or more selected from the group consisting of cetyl PEG / PPG-10 / 1 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, and lauryl PEG-9 polydimethylsiloxyethyl dimethicone are preferred.

[0025] In (E2), the sugar fatty acid ester is an ester of a fatty acid and a sugar. The fatty acid may be branched or unbranched, and the number of carbon atoms in the fatty acid is not particularly limited, but the lower limit is preferably 8 or more, more preferably 10 or more, and even more preferably 14 or more. The upper limit is preferably 22 or less, and more preferably 18 or less. Within this range, it is more preferable because it provides better emulsification stability. The sugar in the sugar fatty acid ester is not particularly limited, but examples include glucose, sucrose, and sorbitan. While there is no particular limit to the sugar fatty acid ester, specific examples include sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoisostearate, sorbitan diisostearate, sorbitan triisostearate, sorbitan monostearate, sorbitan sesquistearate, sorbitan distearate, sorbitan sesquiisostearate, sorbitan triisostearate, methyl glucose sesquistearate, and sucrose fatty acid esters. Among these, one or more selected from the group consisting of sucrose fatty acid esters, sorbitan sesquioleate, and sorbitan sesquiisostearate are preferred.

[0026] In (E2), the glycerin fatty acid ester is an ester of a fatty acid and glycerin. In the present invention, the glycerin in the glycerin fatty acid ester may be polymerized, and the degree of polymerization of glycerin is not particularly limited, but the lower limit is preferably 1 or more, and more preferably 2 or more. The upper limit is preferably 16 or less, more preferably 10 or less, and more preferably 6 or less. Within this range, it is more preferable because it is superior in terms of non-slippage and emulsification stability. While the glycerin fatty acid ester is not particularly limited, specific examples of polyglycerin fatty acid esters include polyglyceryl-10 stearate, polyglyceryl-10 diisostearate, polyglyceryl-10 tristearate, polyglyceryl-6 isostearate, polyglyceryl-5 trioleate, polyglyceryl-10 laurate, polyglyceryl-2 isostearate, and polyglyceryl-2 diisostearate. Among these, one or more selected from the group consisting of polyglyceryl-10 laurate, polyglyceryl-2 isostearate, and polyglyceryl-2 diisostearate are preferred.

[0027] In the present invention, the content of component (E) is not particularly limited, but is preferably 0.1 to 6% and more preferably 0.5 to 4% relative to the total amount of cosmetic composition. This range is more preferable because it results in a more uniform cosmetic film and superior emulsification stability.

[0028] In this invention, component (F) water may be tap water, purified water obtained by distillation, hot spring water, deep sea water, etc. Alternatively, plant extracts such as aloe vera, witch hazel, witch hazel, cucumber, lemon, lavender, or rose water may be used.

[0029] In the present invention, the content of component (F) is not particularly limited, but it is preferably 10-60% of the total amount of cosmetic composition, and more preferably 15-50%. This range is preferable because it provides superior emulsification stability and prevents slipperiness.

[0030] In the present invention, component (G) is an oil that is liquid at 25°C other than components (A) and (B). Component (G) in the present invention is not particularly limited as long as it is commonly used in cosmetics, and examples include hydrocarbon oils, ester oils, higher alcohols, silicone oils, fluorinated oils, etc. For example, hydrocarbon oils such as liquid paraffin, squalane, polybutene, and polyisobutylene, jojoba oil, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, octyl palmitate, glyceryl tri-2-ethylhexanoate, polyglyceryl diisostearate, polyglyceryl isostearate, polyglyceryl-10 decaethylhexanoate, ethylhexyl hydroxystearate, diethylhexyl succinate, and tridecyl trimelliticate. Examples include ester oils such as diisostearyl malate, polyglyceryl triisostearate, isotridecyl isononanoate, and neopentyl glycol dioctanoate; higher alcohols such as oleyl alcohol, octyldodecanol, and decyltetradecanol; silicone oils such as dimethiconol, methylphenylpolysiloxane, cyclopentasiloxane, trifluoropropylcyclotetrasiloxane, and trifluoropropylcyclopentasiloxane; and fluorinated oils such as perfluoropolyethers. In the present invention, one or more of these can be used in combination.

[0031] In the present invention, although the components (G), (A), and (B) can be obtained by appropriately including them, it is preferable to specify the mass ratio of the components to be included, as this can lead to a higher effect. The mass ratio of components (G), (A), and (B) (G) / [(A)+(B)] is not particularly limited, but the lower limit of (G) / [(A)+(B)] is preferably greater than 0, more preferably 0.0001 or greater, and even more preferably 0.001 or greater. The upper limit is preferably 1 or less, more preferably 0.7 or less, and even more preferably 0.1 or less. This range is preferable because it provides superior non-slip properties and a uniform cosmetic film.

[0032] In the present invention, component (H), the oil-soluble film-forming agent, is a film-forming agent that is soluble in oil. Here, "soluble in oil" means that when the film-forming agent is mixed with a solvent oil (for example, volatile silicone oils such as cyclic silicone oil or short-chain dimethicone, volatile hydrocarbons, etc.) at 60°C, it becomes homogeneous. In the present invention, the film-forming agent is not particularly limited, but is a solution in which 40% is dissolved in a soluble solvent, applied to a glass plate with a 400 μm thick applicator, and a film is formed after drying at room temperature for 24 hours. Specifically, examples include hydrocarbon film-forming agents such as polyethylene and polypropylene, acrylic acid polymer film-forming agents such as acrylates copolymer and (styrene / acrylates) copolymer, and silicone film-forming agents such as trimethylsiloxysilicate, polymethylsilsesquioxane, and (acrylates / dimethicone) copolymer. Among these, silicone film-forming agents are preferred, trimethylsiloxysilicate or (acrylates / dimethicone) copolymer is more preferred, and trimethylsiloxysilicate is even more preferred.

[0033] The content of component (H) in the present invention is not particularly limited, but is preferably 0.1 to 10%, more preferably 0.5 to 5%, and even more preferably 1 to 3% relative to the total amount of cosmetic composition. This range is preferable because it provides superior non-slip properties and a uniform cosmetic film.

[0034] In the present invention, component (I) polyalkylene glycol is a glycol in which oxyalkylene groups are polymerized. The polyoxyalkylene groups in the present invention are not particularly limited, but examples include polypropylene glycol in which propylene oxide structural units are polymerized, polyethylene glycol in which ethylene oxide structural units are polymerized, polybutylene glycol in which butylene oxide structural units are polymerized, or copolymers thereof. The properties of the polyalkylene glycol in the present invention are not particularly limited, but it may be liquid, solid, or a mixture thereof. Examples include polypropylene glycol, tripropylene glycol, dipropylene glycol, polyethylene glycol, etc. In the present invention, one or more selected from the group consisting of tripropylene glycol, dipropylene glycol, and polyethylene glycol are preferred.

[0035] The content of component (I) in the present invention is not particularly limited, but is preferably 1 to 20%, more preferably 3 to 15%, and even more preferably 5 to 10% of the total amount of cosmetic composition. This range is preferable because it provides superior non-slip properties and a uniform cosmetic film.

[0036] In addition to the above-mentioned components (A) to (I), the water-in-oil emulsion cosmetic composition of the present invention may contain, to the extent that it does not impede the effects of the present invention, components commonly used in cosmetics, such as oily components other than components (A), (B), and (G), powders other than component (D), surfactants other than component (E), fibers, alcohols (monohydric alcohols, polyhydric alcohols, etc. other than component (C)), water-soluble polymers, aqueous components such as humectants other than component (I), sugars, antioxidants, defoaming agents, beauty ingredients, preservatives, fragrances, etc.

[0037] The water-in-oil emulsion cosmetic composition of the present invention can be manufactured by conventional methods. For example, it can be obtained by emulsifying an oily portion containing components (A), (B), (D), (E), (G), and (H) with an aqueous portion containing components (C), (F), and (I), but the manufacturing method is not limited to this.

[0038] The properties of the water-in-oil emulsion cosmetic composition of the present invention are not particularly limited and may be liquid, gel, cream, semi-solid, solid, stick, or any other form.

[0039] Examples of water-in-oil emulsion cosmetics of the present invention include skincare cosmetics such as lotions and toners, face masks, facial cleansers, massage cosmetics, hair cosmetics, sunscreens, body cosmetics such as body creams, beauty serums such as daytime serums, eye area cosmetics such as eye creams, lip care cosmetics such as lip essences and lip balms, and makeup cosmetics such as foundations, primers, concealers, eyeshadows, blushes, lipsticks, mascaras, and eyebrow products. Among these, makeup cosmetics are preferred, and one or more selected from the group consisting of foundations, primers, and concealers are more preferred. [Examples]

[0040] The present invention will be described in detail below with reference to examples. However, these examples do not limit the present invention in any way.

[0041] Examples 1-20 and Comparative Examples 1-6: Water-in-oil liquid foundation Water-in-oil liquid foundations were prepared according to the formulations shown in Tables 1-3 below, and evaluated for a. non-slippage, b. uniform makeup film, and c. emulsification stability using the evaluation methods described below. The results are also shown in Tables 1-3.

[0042] (Evaluation method) For items A and B below, a usage test was conducted by a panel of 20 experts for each sample. Each panel member applied each sample to their entire face. For (A), a sample was considered good if it did not feel slippery when 0.2 mL was applied to the skin and the application process was completed within 10 seconds. For (B), a sample was considered good if the cosmetic film was uniform after application. The evaluation was made according to the following criteria. Here, an expert panel refers to women in their 20s to 50s who have received training in the sensory evaluation of cosmetics and are capable of evaluating according to certain standards.

[0043] <Evaluation Criteria> (i) Lack of cheating (b) a uniform cosmetic film

[0044] <Judgment criteria> (Judgment): (Evaluation) A: Out of 20 people, 16 or more responded that it was good. B: Out of 20 people, 11 to 15 responded that it was good. C: Out of 20 people, 6 to 10 responded that it was good. D: Out of 20 people, 5 or fewer responded that it was good.

[0045] (Evaluation method) For item (c) below, each sample was filled into a No. 6 standard bottle at 50g and stored in a 40°C constant temperature bath. Emulsification stability was visually confirmed and judged according to the following criteria.

[0046] <Evaluation Criteria> (h) Emulsification stability

[0047] <Judgment criteria> (Judgment): (Evaluation) A: No change after 1 month. B: Separation has occurred at 1 month. C: Separation has occurred after 2 weeks. D: Separation has occurred after one week. Here, separation refers to a state where the supernatant can be seen by tilting the standard bottle.

[0048] [Table 1]

[0049] [Table 2]

[0050] [Table 3]

[0051] *1: IP Solvent 1620 (manufactured by Idemitsu Kosan Co., Ltd.) *2: 3% zinc laurate treatment *3: Treated with 3% triethoxycaprylylsilane

[0052] (Manufacturing method) A: Mix and dissolve components (1) to (15) uniformly at 80°C. B: Add components (16) to (23) to A and mix and disperse uniformly using a roll mill. C: Mix ingredients (24) to (27) uniformly. Add C to D:B and emulsify in a disper mixer at 2000 rpm for 5 minutes at room temperature. E:D was filled into a container to obtain a water-in-oil liquid foundation.

[0053] As is clear from the results in Tables 1-3, the examples of the present invention showed superior performance compared to the comparative examples in terms of non-slippage, uniform cosmetic film formation, and emulsification stability. On the other hand, in Comparative Example 1, because it did not contain volatile hydrocarbon oil, the cosmetic film was slippery, the uniformity of the film was also impaired, and satisfactory quality could not be obtained. In Comparative Example 2, liquid paraffin, a non-volatile hydrocarbon oil, was used instead of volatile hydrocarbon oil, but the cosmetic film was slippery, the uniformity of the film was also impaired, and satisfactory quality could not be obtained. In Comparative Example 3, because it did not contain dimethylpolysiloxane, the film was slippery, a uniform cosmetic film could not be formed, and the emulsion stability was also poor, resulting in unsatisfactory quality. In Comparative Example 4, because it did not contain ethanol, the film was slippery, and satisfactory quality could not be obtained. In Comparative Example 5, the A / B ratio was less than 0.1, and although the uniformity of the cosmetic film and the uniformity of the cosmetic film were somewhat good, the film was slippery, and satisfactory quality could not be obtained. In Comparative Example 6, the A / B ratio was greater than 10, and although there was some lack of slipperiness and the uniformity of the cosmetic film was somewhat good, satisfactory quality in terms of emulsion stability could not be obtained.

[0054] Example 21: Water-in-oil BB cream A water-in-oil BB cream was prepared using the composition and manufacturing method shown below. (composition) (%) (1) Isododecane 15 (2) Dimethylpolysiloxane (kinematic viscosity at 25°C: 2 CS) 10 (3) Lauryl PEG-9 Polydimethylsiloxyethyl dimethicone 0.8 (4) PEG-9 Polydimethylsiloxyethyl Dimethicone 0.4 (5) Sorbitan sesquiisostearate 0.6 (6) Neopentyl glycol diethylhexanoate 10 (7) 2-ethylhexyl paramethoxycinnamate 5 (8) 2-(4-diethylamino-2-hydroxybenzoyl) Hexyl benzoate 2 (9) Trimethylsiloxysilicate 2 (10) Disodium N-stearoyl-L-glutamate 3% treated titanium dioxide (average particle size 300nm) 9 (11) Triethoxycaprylylsilane 2% treated black iron oxide 0.3 (12) Triethoxycaprylylsilane 2% treated yellow iron oxide 1.8 (13) Triethoxycaprylylsilane 2% treated red iron oxide 0.6 (14) Triethoxycaprylylsilane 2% treated talc 1 (15) Dimethyldistearylammonium hectorite 1.5 (16) Benzyldimethylstearylammonium hectorite 0.6 (17) Spherical silica 5 (18) Purified water remaining amount (19) Ethanol 5 (20) Tripropylene glycol 10

[0055] (Manufacturing method) A: Heat components (1) to (9) to 80°C and mix and dissolve them uniformly. B: Add components (10) to (17) to A and mix and disperse uniformly using a roll mill. C: Mix ingredients (18) to (20) uniformly. Add C to D:B and emulsify in a disper mixer at 2000 rpm for 5 minutes at room temperature. E:D was filled into a container to obtain a water-in-oil BB cream.

[0056] The water-in-oil BB cream of Example 21 obtained as described above was excellent in all aspects: "non-stickiness," "uniform makeup film," and "emulsification stability."

[0057] Example 22: Water-in-oil shaking foundation A water-in-oil shaking foundation was prepared using the composition and manufacturing method shown below. (composition) (%) (1) Isododecane 15 (2) Dimethylpolysiloxane (kinematic viscosity at 25°C: 2 CS) 10 (3) Cetyl PEG / PPG-10 / 1 Dimethicone 1.2 (4) Polyglyceryl-2 diisostearate 0.6 (5) Neopentyl glycol diethylhexanoate 10 (6) 2-ethylhexyl paramethoxycinnamate 5 (7) 2-(4-diethylamino-2-hydroxybenzoyl) Hexyl benzoate 2 (8)(Acrylates / Dimethicone) Copolymer 2 (9) Zinc laurate 3% treated titanium dioxide (Average particle size 300nm) 9 (10) Triethoxycaprylylsilane 2% treated black iron oxide 0.3 (11) Triethoxycaprylylsilane 2% treated yellow iron oxide 1.8 (12) Triethoxycaprylylsilane 2% treated red iron oxide 0.6 (13) Triethoxycaprylylsilane 2% treated talc 1 (14) Spherical silica 5 (15) Purified water remaining amount (16) Ethanol 5 (17) Tripropylene glycol 10

[0058] (Manufacturing method) A: Heat components (1) to (8) to 80°C and mix and dissolve them uniformly. B: Add components (9) to (14) to A and mix and disperse uniformly using a roll mill. C: Mix ingredients (15) to (17) uniformly. Add C to D:B and emulsify in a disper mixer at 2000 rpm for 5 minutes at room temperature. E:D was filled into a container to obtain a water-in-oil shaking foundation.

[0059] The water-in-oil shaking foundation of Example 22 obtained as described above was excellent in all aspects: "non-stickiness," "uniform makeup film," and "emulsification stability."

Claims

[Claim 1] The following components (A) to (E): (A) Volatile hydrocarbon oils (B) One or more selected from dimethylpolysiloxane and disiloxane (C) Ethanol (D) Metal oxides (E) Nonionic surfactants (F) Water An oil-in-oil emulsion cosmetic containing the following, wherein the mass ratio of component (A) to component (B) is (A) / (B) = 0.1 to 10.

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