Water-in-oil emulsion cosmetic composition

Abstract

The present invention provides a water-in-oil emulsion cosmetic composition containing (A) a hydrophobized pigment, (B) a silicon atom-containing film-forming agent, (C) a silicone surfactant having an HLB value of 2 to 8, and optionally (D) a non-volatile oil, in which component (A) is a hydrophobized pigment in which one or more inorganic pigments, excluding calcium phosphate pigments, have been surface-treated with a hydrophobizing agent excluding bisbenzoyl compounds, and the ratio of the mass of component (B) to the total mass of components (C) and (D) is 1.0 to 9.0; and the water-in-oil emulsion cosmetic composition does not contain a fluoroether compound.

Description

Technical Field

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

Background Art

[0002] Foundation is used to make the skin look beautiful by making skin irregularities and pores less noticeable, and it comes in various forms such as powder type, liquid type, cream type, etc. In order to maintain a beautiful finish throughout the day, foundation is required to have persistence. For example, Japanese Patent Application Laid-Open No. 2005-255623 discloses a water-in-oil type foundation, which is said to have an excellent lasting effect.

[0003] Currently, the COVID-19 pandemic is occurring worldwide, and the habit of wearing masks has become common and essential. In such a situation, in addition to the above characteristics, the property that foundation does not transfer to the mask (non-transfer property) becomes important. However, conventionally, it has been rare to wear a mask while wearing makeup, and even if worn, it has been limited to a short time. Therefore, the non-transfer property of foundation has rarely been a problem, and the composition therefor is not known at present.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, an object of the present invention is to provide a cosmetic composition that not only has good persistence, concealment, and comfort of finish, but also has excellent non-transfer properties with respect to materials that touch the skin (especially masks).

Means for Solving the Problems

[0005] The present invention provides a water-in-oil emulsion cosmetic composition comprising (A) a hydrophobic pigment, (B) a film-forming agent containing silicon atoms, and (C) a silicone-based surfactant having an HLB value of 2 to 8, and optionally (D) a non-volatile oil, wherein component (A) is a hydrophobic pigment in which one or more inorganic pigments, excluding calcium phosphate-based pigments, are surface-treated with a hydrophobic agent, excluding bisbenzoyl compounds, the ratio of the mass of component (B) to the total mass of components (C) and (D) is 1.0 to 9.0, and the composition does not contain fluoroether compounds.

[0006] The cosmetic composition of the present invention is a water-in-oil (W / O) emulsion cosmetic composition.

[0007] Prior art has shown that oil-in-water (O / W) foundations allow for fresh and comfortable application. However, because they use hydrophilic components, including pigments, it is difficult to achieve high adhesion to the skin, and excellent durability cannot be realized. Moreover, conventional W / O foundations contain hydrophobic components, resulting in superior durability compared to O / W foundations, and opacity can also be improved by sufficiently dispersing a large amount of pigment in the oil phase. However, with the composition of conventional W / O foundations, the stickiness and thickness of the makeup layer make it difficult to improve non-transfer properties to masks, etc.

[0008] The water-in-oil emulsion cosmetic composition of the present invention solves the problems of both the O / W and W / O types described above, and not only has good durability, concealment and finish comfort, but also excellent non-transfer properties to materials that come into contact with the skin (especially masks).

[0009] First, by setting the ratio of the mass of component (B) to the total mass of components (C) and (D) (sometimes expressed as "B / (C+D)") within a specific range, the adhesion of component (B) when applied to the skin is prevented. Furthermore, because a pigment hydrophobized with a specific hydrophobic agent is used, it is possible to create a uniform and thin makeup layer. These factors work together to significantly improve the non-transferability to masks and other materials.

[0010] Using pigments hydrophobized with specific hydrophobic agents allows for an increase in the amount of pigment that can be included in cosmetics, and also improves dispersibility, thus enhancing opacity. Furthermore, it prevents significant stickiness in the makeup layer and allows for the creation of thin films, ensuring a comfortable finish.

[0011] Furthermore, if B / (C+D) is below the lower limit of the present invention, the adhesiveness becomes excessive, and if it exceeds the upper limit, the function as a foundation is impaired. Also, if a large amount of conventional pigment is added to improve opacity, the pigment tends to aggregate within component (B), resulting in a thick, uneven makeup layer, which not only has poor non-transfer properties but also impairs the comfort of the finish.

[0012] As described above, the present invention achieves non-transfer properties, durability, opacity, and a comfortable finish through an exquisite balance of factors such as the type of film-forming agent, the surface treatment of the pigment, and the ratio of the film-forming agent to the non-volatile component (including surfactant).

[0013] As a hydrophobic agent, at least one compound selected from the group consisting of silicone compounds, silane compounds, amino acid derivatives, sugar derivatives, organic titanates, phospholipids, metallic soaps, fatty acids, oils, and organic polymers can be used. By using such a hydrophobic agent, it is possible to further improve opacity and finish comfort while maintaining non-transfer properties and durability.

[0014] (B) Preferably, the component is at least one compound selected from the group consisting of trialkylsiloxysilicate, polyalkylsilsesquioxane, (meth)acrylate silicone, and carbosiloxane dendrimer. Using such a component can further improve non-transfer properties and durability while maintaining opacity and finish comfort.

[0015] The water-in-oil emulsion cosmetic composition may further contain at least one compound selected from the group consisting of polyols, spherical powders, organically modified clay minerals, and volatile oils. If a polyol is included, its content is preferably less than 6% by mass on a total basis. The content of volatile oil is preferably 25 to 55% by mass, more preferably 30 to 50% by mass, and even more preferably 35 to 45% by mass on a total basis.

[0016] Polyols provide moisturizing properties to the skin and also have preservative properties. By keeping their content within the above range, the comfort of the finish can be improved while maintaining non-transferability, durability, and opacity. Volatile oils impart spreadability to the cosmetic composition. By keeping their content within the above range, the comfort of the finish can be further improved while maintaining non-transferability, durability, and opacity.

[0017] The water-in-oil emulsion cosmetic composition preferably has a viscosity of 1000 mPa·s or less at 25°C and preferably exhibits a two-phase shaking form. Low viscosity facilitates the thinning of the makeup layer, and the two-phase shaking form allows for a reduction in the amount of component (C), making it easier to adjust the B / (C+D) value within the above range.

[0018] The present invention provides a cosmetic method for the care and / or makeup of keratinous substances, comprising the application of a water-in-oil emulsion cosmetic composition to keratinous substances, particularly to skin.

[0019] The present invention also provides a makeup method in which a water-in-oil emulsion cosmetic composition provides a non-transfer effect, long-lasting effect, high concealing effect, and comfortable finish to a keratin substance to which it is applied. [Effects of the Invention]

[0020] The present invention provides a cosmetic composition that not only has good durability, concealing properties, and finish comfort, but also excellent non-transfer properties to materials that come into contact with the skin (especially masks). [Modes for carrying out the invention]

[0021] The water-in-oil emulsion cosmetic composition according to the embodiment contains (A) a hydrophobic pigment, wherein component (A) is a hydrophobic pigment in which one or more inorganic pigments, excluding calcium phosphate-based pigments, are surface-treated with a hydrophobic agent, excluding bisbenzoyl compounds.

[0022] Examples of inorganic pigments used for surface treatment include metal oxides such as titanium dioxide, iron oxide, zinc oxide, cerium oxide, aluminum oxide, red iron oxide, Prussian blue, chromium oxide, and chromium hydroxide; metal complexes such as manganese violet and cobalt titanate; and carbon black. Titanium dioxide is known as a white pigment, and iron oxide is known as a red, yellow, or black colored pigment. By combining these appropriately, the desired color tone can be achieved. Note that inorganic pigments do not include calcium phosphate pigments such as hydroxyapatite.

[0023] The hydrophobic agent may be at least one compound selected from the group consisting of silicone compounds, silane compounds, amino acid derivatives, sugar derivatives, organic titanates, phospholipids, metal soaps, fatty acids, oils, and organic polymers. It is preferable to use two or more hydrophobic agents. When using two hydrophobic agents, two of the silicone compounds, silane compounds, amino acid derivatives, and organic titanates are preferred. Note that bisbenzoyl compounds such as 4-tert-butyl-4-4-methoxybenzoylmethane are not included as hydrophobic agents.

[0024] Examples of silicone compounds include dialkyl polysiloxanes such as monomethyl polysiloxane (methicone) and dimethyl polysiloxane (dimethicone). Examples of silane compounds include trialkyl alkoxysilanes such as trimethyl methoxysilane and triethoxycaprylylsilane.

[0025] The amino acid derivative can be a derivative of an amino acid such as glycine, alanine, sarcosine, proline, hydroxyproline, aspartic acid, glutamic acid, lysine, etc. As the derivative, an acylated amino acid acylated with a fatty acid is preferred. The fatty acid used for acylation is preferably a saturated or unsaturated fatty acid having 1 to 22 carbon atoms, more preferably a saturated or unsaturated fatty acid having 8 to 20 carbon atoms.

[0026] Examples of saturated fatty acids having 8 to 20 carbon atoms include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, cerotic acid, etc. Examples of unsaturated fatty acids having 8 to 20 carbon atoms include, for example, myristoleic acid, palmitoleic acid, sapienic acid, oleic acid, eicosadienoic acid, nervonic acid, linolelaidic acid, α-linolenic acid, arachidonic acid, eicosapentaenoic acid, erucic acid, docosahexaenoic acid, etc.

[0027] Examples of acylated amino acids include stearoyl glutamic acid, lauroyl glutamic acid, myristoyl glutamic acid, lauroyl aspartic acid, stearoyl lysine, lauroyl lysine, myristoyl lysine, etc. Preferred acylated amino acids are stearoyl glutamic acid, myristoyl glutamic acid and lauroyl aspartic acid. The acylated amino acid may be a salt with sodium, potassium, calcium, magnesium, aluminum.

[0028] Examples of sugar derivatives used as hydrophobic agents include polysaccharide fatty acid esters such as dextrin palmitate, dextrin myristate, and dextrin isostearate, as well as glycolipids. Examples of organic titanates include titanate coupling agents such as isopropyltriisostearoyl titanate. Phospholipids include lecithin and hydrogenated lecithin, and fatty acids such as lauric acid, myristic acid, stearic acid, isostearic acid, and palmitic acid, as well as fatty acid esters and fatty acid amides can be used.

[0029] Examples of metal soaps used as hydrophobic agents include stearic acid soap, 12-hydroxystearic acid soap, behenic acid soap, montanic acid soap, and lauric acid soap. Examples of oils include waxes, waxes, and fats. Examples of organic polymers include urethane compounds, acrylic compounds, (meth)acrylic compounds, polyisobutylene, and polyethylene.

[0030] Furthermore, in obtaining hydrophobic pigments, aluminum hydroxide may be used as a surface treatment agent in addition to the hydrophobic agent mentioned above. In particular, when the inorganic pigment is a catalytically active substance such as titanium dioxide, aluminum hydroxide is effective in blocking its catalytic activity.

[0031] (A) The amount of component is preferably 5 to 35% by mass, more preferably 10 to 30% by mass, and even more preferably 15 to 25% by mass, based on the total amount of the cosmetic composition. When the content of component (A) is within the above range, the opacity and durability are further enhanced, and a thinner film can be formed.

[0032] Furthermore, with respect to component (A), the mass of the portion derived from the hydrophobic agent is preferably 1 to 15% by mass, more preferably 2 to 12% by mass, and even more preferably 3 to 10% by mass, based on the total mass of the hydrophobic pigment. When the content of the hydrophobic agent is within the above range, the dispersibility of the pigment is improved, and the opacity and durability are further enhanced. In addition, the oil absorption of the pigment is suppressed, the viscosity of the cosmetic composition is reduced, and a thinner film can be formed.

[0033] The water-in-oil emulsion cosmetic composition according to the embodiment contains a film-forming agent containing silicon atoms (B). Compound (B) is also called a film-forming agent containing silicon atoms. As component (B), trialkylsiloxysilicate, polyalkylsilsesquioxane, (meth)acrylate silicone, and carbosiloxane dendrimer can be used. The alkyl group in trialkylsiloxysilicate and polyalkylsilsesquioxane is preferably an alkyl group having 1 to 3 carbon atoms, and includes methyl group, ethyl group, 1-propyl group, and 2-propyl group (isopropyl group). Furthermore, trimethylsiloxysilicate is preferred as the trialkylsiloxysilicate, and polymethylsilsesquioxane is preferred as the polyalkylsilsesquioxane. Of these, trialkylsiloxysilicate, particularly trimethylsiloxysilicate, is preferred.

[0034] Component (B) may be handled in a state dissolved in a volatile oil, in which case it may be used together with the volatile oil. Examples of such volatile oils include cyclopentasiloxane, methyl trimethicone, dimethicone, isododecane, and butyl acetate. The amount of volatile oil will be added to the amount of volatile oil described later.

[0035] (B) The content of component (B) may be 2 to 12% by mass, preferably 3 to 10% by mass, and more preferably 4 to 8% by mass, based on the total amount of the cosmetic composition. When the content of component (B) is within the above range, not only are the concealing properties and durability improved, but the cosmetic can also be made more comfortable to wear.

[0036] The water-in-oil emulsion cosmetic composition according to the embodiment contains a silicone-based surfactant having a (C)HLB value of 2 to 8.

[0037] Component (C) has a chemical structure containing hydrophilic groups in its polysiloxane skeleton or side chains. The HLB value of the silicone surfactant changes depending on the type of hydrophilic group. Examples of hydrophilic groups include polyether groups such as polyethylene glycol (hereinafter also referred to as "PEG") and polypropylene glycol (hereinafter also referred to as "PPG"), and polyglycerin groups. Component (C) may be further modified with alkyl groups (polyether-alkyl copolymerization, polyglycerin-alkyl copolymerization). The silicone chains of component (C) may be linear or branched. Two or more silicone chains may be crosslinked by hydrophilic groups. The number of ethylene oxide units in polyethylene glycol is not particularly limited and may be 1 or more, 2 or more, 3 or more, 4 or more, 5 or more, or 6 or more. The number of ethylene oxide units may also be 11 or less, 10 or less, or 9 or less.

[0038] The HLB value of component (C) is 2 to 8, and may be 2 to 7, 3 to 7, 3 to 6, or 4 to 6. Furthermore, the HLB value of component (C) may be 1 or higher, 2 or higher, or 3 or higher. Examples of component (C) include commercially available products such as KF-6012(registered trademark) (PEG / PPG-20 / 22 butyl ether dimethicone, HLB=7.0), KF-6015(registered trademark) (PEG-3 dimethicone, HLB=4.5), KF-6016(registered trademark) (PEG-9 methyl ether dimethicone, HLB=4.5), KF-6017(registered trademark) (PEG-10 dimethicone, HLB=4.5), and KF-6028(registered trademark) (PEG-9 poly Examples include methylsiloxyethyl dimethicone (HLB=4.0), KF-6038 (registered trademark) (lauryl PEG-9 polymethylsiloxyethyl dimethicone, HLB=3.0), KF-6048 (registered trademark) (cetyl PEG / PPG-10 / 1 dimethicone, HLB=3.5), KF-6100 (registered trademark), KF-6104 (registered trademark), KE-6105 (registered trademark), and KF-6106 (registered trademark) (product names, manufactured by Shin-Etsu Chemical Co., Ltd.).

[0039] (C) The content of component (C) is more preferably 1 to 5% by mass on a basis of the total amount of the cosmetic composition. When the content of component (C) is within the above range, the emulsified state is more stable, and the opacity and persistence can be further enhanced.

[0040] The water-in-oil emulsion cosmetic composition according to the embodiment may contain (D) a non-volatile oil. Examples of component (D) include cyclic alkylene carbonates (e.g., propylene carbonate), fatty alcohols with 8 to 22 carbon atoms (e.g., octyldodecanol), fatty acid esters of monohydric or polyhydric alcohols (e.g., isopropyl myristate, isononyl isononanoate, pentaerythrityl tetraisostearate, castor oil), alkyl benzoates, aliphatic hydrocarbons (e.g., hydrogenated polyisobutene), liquid lanolin, olive oil, mineral oil, squalane, polysiloxanes (e.g., dimethicone), and aromatic polysiloxanes (e.g., phenyl trimethicone). A non-volatile oil refers to a non-evaporable oil component that is liquid at room temperature (i.e., in the range of 15 to 25°C) and atmospheric pressure (i.e., 1 atmosphere).

[0041] The content of component (D) is preferably 8% by mass or less, more preferably 6% by mass or less, and even more preferably 4% by mass or less, based on the total amount of the cosmetic composition. The content may be 0% by mass. When the content of component (D) is within the above range, dryness and tightness of the skin are less likely to occur after application, resulting in a more comfortable finish.

[0042] The water-in-oil emulsion cosmetic composition according to the embodiment may contain (E1) a volatile oil. Component (E1) is an oily component that is liquid at room temperature and atmospheric pressure and gradually vaporizes. Examples of component (E1) include cyclopentasiloxane, methyl trimethicone, octamethyltrisiloxane, dimethicone, butyl acetate, isododecane, isohexadecane, and petroleum volatiles.

[0043] The content of component (E1) is preferably 25 to 55% by mass, more preferably 30 to 50% by mass, and even more preferably 35 to 45% by mass, based on the total amount of the cosmetic composition. When the content of component (E1) is within the above range, a thinner film can be formed without impairing the concealing properties and durability, and the finished comfort is also superior. Furthermore, after application to the skin, it is less likely to cause tightness due to dryness, skin irritation, or a feeling of occlusion, making it more preferable in terms of usability.

[0044] The water-in-oil emulsion cosmetic composition according to the embodiment may contain (E2) organically modified clay mineral. Component (E2) is clay that has been hydrophobically modified with organic molecules and has a thickening effect.

[0045] Examples of clays used in component (E2) include kaolinite, dickite, nacrite, donbascite, antigorite, bertierine, pyrophyllite, montmorillonite, beiderite, vermiculite, talc, stevensite, hectorite, saponite, chlorite, and sepiolite, which are modified to be hydrophobic with organic molecules. Examples of organic molecules include quaternary ammonium salts, more specifically disteardimonium chloride and stearalkonium chloride. Component (E2) includes disteardimonium hectorite and stearalkonium hectorite.

[0046] Component (E2) may be handled in a dispersed state in volatile oils and / or non-volatile oils, in which case it may be used together with volatile oils and / or non-volatile oils.

[0047] Examples of such volatile oils include cyclopentasiloxane, octamethyltrisiloxane, isododecane, isohexadecane, petroleum volatiles, methyl trimethicone, and ethanol. Examples of non-volatile oils include propylene carbonate, crambe abyssinica seed oil, castor oil, olive fruit oil, octyldodecanol, isopropyl myristate, liquid lanolin, mineral oil, hydrogenated polyisobutene, phenyl trimethicone, pentaerythrityl tetraisostearate, and alkyl benzoate. The amount of volatile or non-volatile oil coexisting with component (E2) is added to the amount of volatile or non-volatile oil described later. Examples of component (E2) include the BENTON GEL series (product name, manufactured by Elementis), such as BENTON GEL ISD V.

[0048] The inclusion of component (E2) improves the stability of the emulsified state, provides excellent water resistance and sebum resistance after application to the skin, and can suppress bleeding due to sebum, etc. The content of component (E2) may be 0.05 to 1.5% by mass, preferably 0.1 to 1.2% by mass, and more preferably 0.5 to 1.0% by mass, based on the total amount of the cosmetic composition.

[0049] The water-in-oil emulsion cosmetic composition according to the embodiment may contain an (E3) dispersant. An example of the (E3) component is polyhydroxystearic acid. The content of the (E3) component is more preferably 0.05 to 2.0% by mass, and even more preferably 0.1 to 1.0% by mass, based on the total amount of the cosmetic composition.

[0050] The water-in-oil emulsion cosmetic composition according to the embodiment contains (F) an aqueous phase component. Component (F) includes (F1) water and may also include at least one of (F2) a polyol and (F3) a monool.

[0051] The content of component (F1) may be 3 to 25% by mass, preferably 5 to 22% by mass, and more preferably 7 to 20% by mass, based on the total mass of the cosmetic composition. When the content of component (F1) is within the above range, the emulsified state is less likely to become unstable, the viscosity of the cosmetic composition is further reduced, and it becomes easier to form a thin film.

[0052] Examples of component (F2) include polyols having 1 to 8 carbon atoms. Examples of component (F2) include ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, glycerin, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol. The content of component (F2) may be less than 6% by mass, preferably less than 4% by mass, and more preferably less than 3% by mass, based on the total amount of the cosmetic composition. When the content of component (F2) is within the above range, the moisturizing effect can be further enhanced without destabilizing the emulsified state.

[0053] Examples of (F3) components include monools having 1 to 3 carbon atoms. Examples of (F3) components include ethanol, 1-propanol, and 2-propanol (isopropanol). The content of (F3) component may be 1 to 25% by mass, and preferably 5 to 20% by mass, based on the total amount of the cosmetic composition. When the content of (F3) component is within the above range, a uniform film is more easily formed, and the opacity and durability can be further enhanced.

[0054] The water-in-oil emulsion cosmetic composition according to the embodiment may contain (G) spherical powder. Examples of component (G) include silica, cellulose, starch, and mixtures thereof, with hydrophobized silica, hydrophobized cellulose, and hydrophobized starch being preferred, and hydrophobized silica being more preferred. The content of component (G) may be 0.1 to 10% by mass, and preferably 0.5 to 5% by mass, based on the total amount of the cosmetic composition.

[0055] The water-in-oil emulsion cosmetic composition according to this embodiment may further contain an antibacterial agent, an antioxidant, a fragrance, an active ingredient, and the like.

[0056] In the water-in-oil emulsion cosmetic composition according to the embodiment, the ratio of the mass of component (B) to the total mass of components (C) and (D) is 1.0 to 9.0. This ratio is preferably 1.2 to 9.0, more preferably 1.5 to 9.0, and even more preferably 2.0 to 9.0. If components other than component (D) contain non-volatile oils, these are also included in the calculation of the above ratio. Furthermore, even if component (E1) (volatile oil) is present, its content is not used in the calculation of the above ratio.

[0057] The water-in-oil emulsion cosmetic composition according to the embodiment preferably has a viscosity of 1000 mPa·s or less, and more preferably 800 mPa·s or less, at 25°C. Viscosity is measured using a rotational viscometer (for example, a Rheolab QC manufactured by Anton Parr), by inserting an ST22-4V-40 spindle into the water-in-oil emulsion cosmetic composition housed in a container with an inner diameter of 4.5 cm and kept at 25°C, and measuring at a rotational speed of 100 rpm for 3 minutes. As for the form of the water-in-oil emulsion cosmetic composition, a two-phase vibration form is preferred because it allows for a lower content of component (C).

[0058] The water-in-oil emulsion cosmetic composition according to this embodiment is C4F9OCH3, C4F9OC2H5, C5F 11 It does not contain fluoroether compounds such as OC2H5, C3F7OC4H9, and C4F9OC4H9.

[0059] The water-in-oil emulsion cosmetic composition according to this embodiment can be manufactured, for example, by the following steps: Components (A), (B), (C), (D), (E1), (E2), (E3), and (G) are mixed to obtain a mixture. Separately, components (F1), (F2), and (F3) are mixed to obtain a mixture. Finally, the water-in-oil emulsion cosmetic composition can be obtained by mixing both mixtures. [Examples]

[0060] The present invention will be described below with reference to examples, but the present invention is not limited to the following examples.

[0061] (Examples 1-19 and Comparative Examples 1-6) A water-in-oil emulsion cosmetic composition was prepared according to the following steps 1 to 3, using the compositions listed in Tables 1 to 3. Step 1: (A) pigment (hydrophobic or non-hydrophobic pigment), (B) film-forming agent containing silicon atoms, (C) silicone-based surfactant with a low HLB value (HLB value of 2-8), (D) non-volatile oil, (E1) volatile oil, (E2) organically modified clay mineral, (E3) dispersant, and (G) spherical powder were mixed at room temperature using a homogenizer. Step 2: (F) The aqueous phase components were mixed at room temperature using a homogenizer. Step 3: The mixture obtained in Step 2 was added to the mixture obtained in Step 1 and emulsified using a homogenizer.

[0062] The notation for the compounds in Tables 1-3 is as follows: Hydrophobic pigment 1: Titanium dioxide, aluminum hydroxide (92%), dimethicone, disodium stearoyl glutamate (8%) Hydrophobic pigment 2: Iron oxide (yellow), aluminum hydroxide (92%), dimethicone, disodium stearoyl glutamate (8%) Hydrophobic pigment 3: Iron oxide (red), aluminum hydroxide (92%), dimethicone, disodium stearoyl glutamate (8%) Hydrophobic pigment 4: Iron oxide (black), aluminum hydroxide (92%), dimethicone, disodium stearoyl glutamate (8%) Hydrophobic pigment 5: Titanium dioxide (98%), dimethicone (2%) Hydrophobic pigment 6: Iron oxide (yellow) (98%), dimethicone (2%) Hydrophobic pigment 7: Iron oxide (red) (98%), dimethicone (2%) Hydrophobic pigment 8: Iron oxide (black) (98%), dimethicone (2%) Hydrophobic pigment 9: Titanium dioxide, aluminum hydroxide (97%), sodium myristoyl glutamate (3%) Hydrophobic pigment 10: Iron oxide (yellow), aluminum hydroxide (97%), sodium myristoyl glutamate (3%) Hydrophobic pigment 11: Iron oxide (red), aluminum hydroxide (97%), sodium myristoyl glutamate (3%) Hydrophobic pigment 12: Iron oxide (black), aluminum hydroxide (97%), sodium myristoyl glutamate (3%) Hydrophobic pigment 13: Titanium dioxide, aluminum hydroxide (98%), triethoxycaprylylsilane (2%) Hydrophobic pigment 14: Iron oxide (yellow) (98%), triethoxycaprylylsilane (2%) Hydrophobic pigment 15: Iron oxide (red) (98%), triethoxycaprylylsilane (2%) Hydrophobic pigment 16: Iron oxide (black) (98%), triethoxycaprylylsilane (2%) Hydrophobic pigment 17: Titanium dioxide, aluminum hydroxide (98%), isopropyl titanium triisostearate, sodium lauroyl aspartate (2%) Hydrophobic pigment 18: Iron oxide (yellow) (98%), isopropyl titanium triisostearate, sodium lauroyl aspartate (2%) Hydrophobic pigment 19: Iron oxide (red) (98%), isopropyl titanium triisostearate, sodium lauroyl aspartate (2%) Hydrophobic pigment 20: Iron oxide (black) (98%), isopropyl titanium triisostearate, sodium lauroyl aspartate (2%)

[0063] [Table 1] JPEG0007855587000002.jpg225149

[0064] [Table 2] JPEG0007855587000004.jpg225149

[0065] [Table 3]

[0066] The properties of the water-in-oil emulsion cosmetic compositions of the examples and comparative examples were measured according to the following method.

[0067] [Evaluation of non-transferability to the mask, durability, concealment, and finished comfort] Ten cosmetic experts (aged 25-55) applied the water-in-oil emulsion cosmetic compositions of the examples and comparative examples to the skin. The concealment of blemishes and pores, as well as the comfort of the finish, were evaluated according to the following criteria. Durability was evaluated 4 or 8 hours after application, according to the following criteria. Non-transferability to masks was evaluated 4 or 8 hours after wearing a surgical mask with the applied product, according to the following criteria. "Blemishes" refer to areas that appear darker than the surrounding skin due to the deposition of pigments such as melanin on the skin's surface or within the skin. This test assumed that the condition of the cosmetic composition applied to the skin in the morning would be evaluated in the evening.

[0068] Evaluation criteria for non-transferability to masks A: Excellent (e.g., there is almost no transfer of cosmetics to the mask even after 8 hours.) B: Excellent (Example: There is almost no transfer of cosmetic product to the mask after 4 hours, but after 8 hours, transfer of cosmetic product to the mask is observed in 1-2 people.) C: Fairly good (Example: There is almost no transfer of cosmetic product to the mask after 4 hours, but after 8 hours, transfer of cosmetic product to the mask is observed in 3-5 people.) D: Slightly inferior (Example: After 4 hours, transfer of cosmetic ingredients to the mask is observed in 1-2 people.) E: Inferior (Example: After 4 hours, transfer of cosmetic ingredients to the mask was observed in 3-5 people.) F: Very poor (Example: After 4 hours, transfer of cosmetic ingredients to the mask was observed in 6-10 people.)

[0069] Criteria for evaluating sustainability A: Excellent (e.g., makeup doesn't smudge even after 8 hours.) B: Excellent (Example: Makeup doesn't smudge after 4 hours, but after 8 hours, 1-2 people's makeup smudges.) C: Fairly good (Example: Makeup doesn't smudge after 4 hours, but after 8 hours, 3-5 people experience makeup smudging.) D: Slightly inferior (e.g., 1-2 people's makeup will be smudged after 4 hours.) E: Inferior (Example: After 4 hours, 3-5 people's makeup will be smudged.) F: Very poor (Example: 6-10 people's makeup will be ruined after 4 hours.)

[0070] Criteria for evaluating concealment A: Excellent (e.g., blemishes and pores are completely concealed.) B: Excellent (Example: No blemishes are visible, but pores are visible on 1-2 people.) C: Fairly good (Example: No blemishes are visible, but pores are visible on 3-5 people.) D: Slightly inferior (e.g., blemishes and pores are visible in 1-2 people.) E: Inferior (Example: 3-5 people have visible blemishes and pores.) F: Very poor (e.g., blemishes and pores are visible in 6-10 people.)

[0071] Evaluation criteria for comfort of the finished product A: Excellent (e.g., no feeling of confinement, and absolutely no resistance to changes in facial expression.) B: Excellent (Example: There is a slight sense of confinement, but I don't feel any resistance to changes in facial expression.) C: Slightly good (Example: There is a sense of confinement, but there is no resistance to changes in facial expression.) D: Slightly inferior (e.g., feeling a sense of confinement and resistance to changes in facial expression.) E: Inferior (Example: There is a strong sense of confinement, and there is a strong resistance to changes in facial expression.) F: Very poor (Example: There is a strong feeling of constriction, and there is a strong resistance to changing facial expressions. In addition, skin irritation due to dryness is also felt.)

[0072] [Stability Assessment] The water-in-oil emulsion cosmetic compositions of the examples and comparative examples were placed in transparent containers, sealed with lids, and stored at 50°C for one month. A water-in-oil emulsion cosmetic composition stored similarly at room temperature for one month was used as the control. The appearance of the water-in-oil emulsion cosmetic compositions after storage was visually observed and compared to the control. If any of the following caking and powder aggregation were observed, it was judged as "B: Not good," and if there was no difference from the control, it was judged as "A: Good." Caking... This refers to a condition where the settled pigment remains solid even after shaking the container 10 times by hand. Powder aggregation... This refers to a situation where, even after shaking the powder 10 times by hand, the pigment remains unevenly dispersed, resulting in color inconsistencies.

[0073] The results above are summarized in Tables 4-6 below. [Table 4]

[0074] [Table 5]

[0075] [Table 6]

Claims

1. A water-in-oil emulsion cosmetic composition for skin, comprising (A) a hydrophobic pigment, (B) a film-forming agent containing silicon atoms, (C) a silicone-based surfactant having an HLB value of 2 to 8, a volatile oil, and (D) a non-volatile oil, (A) Component is a hydrophobic pigment in which one or more inorganic pigments, excluding calcium phosphate-based pigments, are surface-treated with a hydrophobic agent, excluding bisbenzoyl compounds. The ratio of the mass of component (B) to the total mass of components (C) and (D) is between 1.0 and 9.

0. It does not contain fluoroether compounds. Component (B) is at least one compound selected from the group consisting of trialkylsiloxysilicate, polyalkylsilsesquioxane, (meth)acrylate silicone, and carbosiloxane dendrimer. A water-in-oil emulsion cosmetic composition having a volatile oil content of 25 to 55% by mass on a total basis.

2. The water-in-oil emulsion cosmetic composition for skin according to claim 1, wherein the hydrophobic agent is at least one compound selected from the group consisting of silicone compounds, silane compounds, amino acid derivatives, sugar derivatives, organic titanates, phospholipids, metallic soaps, fatty acids, oils, and organic polymers.

3. The water-in-oil emulsion cosmetic composition for skin according to claim 1 or 2, further comprising at least one compound selected from the group consisting of polyols, spherical powders, and organically modified clay minerals.

4. The water-in-oil emulsion cosmetic composition for skin according to claim 3, wherein the polyol content is less than 6% by mass on a total basis.

5. A water-in-oil emulsion cosmetic composition for skin according to any one of claims 1 to 4, wherein the vibration mode is two-phase.

6. A cosmetic method for the care and / or makeup of keratin substances, comprising applying the water-in-oil emulsion cosmetic composition according to any one of claims 1 to 5 to the skin.

7. The makeup method according to claim 6, wherein the water-in-oil emulsion cosmetic composition provides to the skin to which it is applied a non-transfer effect, a long-lasting effect, a high concealing effect, and a comfortable finish.

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