WO2023127275A1 - Water-in-oil emulsified solid cosmetic material - Google Patents
Water-in-oil emulsified solid cosmetic material Download PDFInfo
- Publication number
- WO2023127275A1 WO2023127275A1 PCT/JP2022/040297 JP2022040297W WO2023127275A1 WO 2023127275 A1 WO2023127275 A1 WO 2023127275A1 JP 2022040297 W JP2022040297 W JP 2022040297W WO 2023127275 A1 WO2023127275 A1 WO 2023127275A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- oil
- solid cosmetic
- oil emulsified
- wax
- Prior art date
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- A61K8/00—Cosmetics or similar toiletry preparations
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/29—Titanium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/31—Hydrocarbons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/12—Face or body powders for grooming, adorning or absorbing
Definitions
- the present invention relates to a water-in-oil emulsified solid cosmetic. More particularly, the present invention relates to a water-in-oil emulsified solid cosmetic that can be suitably used for makeup cosmetics such as foundation, concealer, blush, eyeshadow, eyebrow, blusher and lipstick, sunscreen cosmetics, and the like. .
- the water-in-oil emulsified solid cosmetic has the advantages of giving a smooth feel to the skin, being easy to use because it is solid, and having good usability such as portability.
- water-in-oil emulsified solids that have sufficient hardness, have a fresh and transparent feel, finish quickly, have a good feeling of use without creaking, and are excellent in both shape retention and feeling in use.
- cosmetics (a) silicone oil, (b) wax containing refined rice wax having an iodine value and an acid value of 3.0 or less, and (c) polyoxyalkylene-modified organopolysiloxane are blended, and the wax contains the above
- a solid water-in-oil emulsified cosmetic containing a refined rice wax content of 30% by mass or more has been proposed (see, for example, Patent Document 1).
- the water-in-oil emulsified solid cosmetic uses wax to solidify the water-in-oil emulsified cosmetic.
- the content of wax in the water-in-oil emulsified cosmetic is high, the surface of the water-in-oil emulsified cosmetic becomes hard.
- the content of wax in the water-in-oil emulsified cosmetic is reduced in order to soften the surface of the water-in-oil emulsified cosmetic, the oil may seep out from the surface of the water-in-oil emulsified cosmetic.
- the present invention has been made in view of the above-mentioned prior art. To provide a water-in-oil type emulsified solid cosmetic that liquefies when stress is applied, is excellent in usability, and imparts a smooth feeling on a coating surface.
- the present invention provides a water-in-oil emulsified solid cosmetic comprising (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) powder, wherein the present invention relates to a water-in-oil emulsified solid cosmetic containing ceresin, isoparaffin wax and fatty acid ester wax as wax components.
- the surface is hard to crack (crack) even at low temperatures, and although it is solid at room temperature, it liquefies when external stress is applied, and can be used.
- a water-in-oil type emulsified solid cosmetic which has excellent properties and imparts a smooth feeling on the application surface.
- Fig. 1 is a schematic explanatory diagram schematically showing the structure of the water-in-oil emulsified solid cosmetic composition of the present invention
- 1 is a drawing-substitute transmission electron micrograph of a water-in-oil emulsified solid cosmetic obtained in Example 1 of the present invention.
- the water-in-oil emulsified solid cosmetic composition of the present invention contains (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) powder.
- the water-in-oil emulsified solid cosmetic composition of the present invention contains the components (A) to (D), especially the components (A) to (C), and the wax component (A) is ceresin or isoparaffin. Since it contains a base wax and a fatty acid ester-based wax, it is difficult for oil to perspire, the surface is hard to crack (crack) even at low temperatures, and although it is solid at room temperature, it is resistant to external stress. It liquefies when applied, is excellent in usability, and exhibits an excellent property of imparting a dry feeling to the application surface.
- Wax component contains ceresin, isoparaffin wax and fatty acid ester wax.
- Ceresin is a microcrystalline n-paraffinic hydrocarbon compound having 29 to 35 carbon atoms, which is obtained by refining ozokerite, which is called zokerite, which is mined near petroleum production areas. Ceresin has a melting point of about 60-95° C. and is therefore solid at room temperature. Ceresin is readily commercially available from, for example, Nikko Spain Corporation.
- the water-in-oil emulsified solid cosmetic since ceresin is contained in the water-in-oil emulsified solid cosmetic, the water-in-oil emulsified solid cosmetic is less likely to perspire oil, and cracks on the surface even at low temperatures ( It is solid at room temperature, but liquefies when external stress is applied, and exhibits excellent usability.
- the content of ceresin in water-in-oil emulsified solid cosmetics suppresses perspiration of oil and the occurrence of cracks (cracks) at low temperatures.
- it is preferably 3% by mass or more, and from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 6% by mass or less. preferable.
- Isoparaffin wax is a type of petroleum wax, and is a wax that mainly contains isoparaffin.
- the water-in-oil emulsified solid cosmetic contains isoparaffin wax, the water-in-oil emulsified solid cosmetic hardly causes perspiration of oil, and even at low temperatures, it does not adhere to the surface. It is hard to crack (crack), and although it is solid at room temperature, it liquefies when external stress is applied, and exhibits excellent properties such as excellent usability.
- isoparaffinic waxes made of branched aliphatic hydrocarbons having 31 to 50 carbon atoms are preferable from the viewpoint of excellent adhesiveness when heated and suppressing perspiration of oil.
- the water-in-oil emulsified solid cosmetic may contain an appropriate amount of paraffin wax other than ceresin and isoparaffin wax within a range that does not impair the object of the present invention.
- paraffin waxes include, for example, n-paraffin waxes composed of linear aliphatic hydrocarbons having 20 to 36 carbon atoms, but the present invention is limited only to such examples. isn't it.
- microcrystalline wax can be suitably used as the isoparaffinic wax.
- the melting point of microcrystalline wax is higher than that of n-paraffin wax, 72-101°C.
- Microcrystalline wax is a wax that is readily commercially available from Sankei Sangyo Co., Ltd., for example.
- the isoparaffin-based wax content in the water-in-oil emulsified solid cosmetic is preferably 0.1% by mass or more from the viewpoint of suppressing cracking due to perspiration and shrinkage of oil in the water-in-oil emulsified solid cosmetic. , from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 0.3% by mass or less.
- fatty acid ester-based waxes include plant-based waxes such as carnauba wax (also called carnauba wax), candelilla wax, rice wax, sunflower wax, and Japanese wax, but the present invention is limited only to such examples. isn't it.
- Fatty acid ester-based waxes have the property of combining oily raw materials and the property of adjusting hardness.
- fatty acid ester-based waxes having a melting point of 80° C. or higher are preferred, and carnauba wax is more preferred, from the viewpoint of sufficiently expressing the property of binding oily raw materials.
- the content of the fatty acid ester wax in the water-in-oil emulsified solid cosmetic is preferably 0.1% by mass or more from the viewpoint of suppressing cracking due to perspiration and shrinkage of the oil content of the water-in-oil emulsified solid cosmetic. Preferably, it is 0.2% by mass or less from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin.
- waxes other than ceresin, isoparaffin wax and fatty acid ester wax may be contained in an appropriate amount within a range that does not hinder the object of the present invention.
- waxes include, for example, animal-derived waxes such as beeswax and gay wax, but the present invention is not limited to such examples. These waxes may be used alone or in combination of two or more. Although the melting point of the other wax is not particularly limited, it is usually preferably from 60 to 120°C.
- a volatile silicone oil is a liquid silicone oil that has fluidity at room temperature (25°C).
- Volatile silicone oils include, for example, volatile silicone oils having a boiling point of 300° C. or less at 1 atm, linear or branched chains having a viscosity of preferably 10 cs or less, more preferably 5 cs or less at room temperature (25° C.) silicone oil, etc., but the present invention is not limited to such examples.
- Each of these volatile silicone oils may be used alone, or two or more of them may be used in combination.
- cyclic silicone oils having 4 to 6 silicon atoms and linear silicone oils having 2 to 5 silicon atoms are preferred.
- volatile silicone oils include cyclopentasiloxane, hexamethylcyclotrisiloxane (D3), octamethyltetracyclosiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), and the like.
- cyclic silicone oil cyclic silicone oil; short-chain dimethicone (methylpolysiloxane) [methylpolysiloxane having a viscosity of 2 cs, 1.5 cs or 1 cs at room temperature (25 ° C.)], methyltrimethicone, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane Examples include chain silicone oils such as siloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and dodecamethylpentasiloxane, but the present invention is not limited to these examples. Each of these volatile silicone oils may be used alone, or two or more of them may be used in combination.
- the content of the volatile silicone oil in the water-in-oil emulsified solid cosmetic is determined from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied and suppressing cracking due to shrinkage. It is preferably 5% by mass or more, more preferably 6% by mass or more, and from the viewpoint of suppressing sweating of the oil content of the water-in-oil emulsified solid cosmetic, preferably 25% by mass or less, more preferably 23% by mass or less, More preferably, it is 22% by mass or less.
- volatile oils include paraffinic hydrocarbon oils such as isododecane, isodecane, isohexadecane, n-decane, n-undecane, and n-dodecane, cyclodecane, light liquid isoparaffin, and hydrogenated polyisobutene having a polymerization degree of 15 to 50.
- paraffinic hydrocarbon oils such as isododecane, isodecane, isohexadecane, n-decane, n-undecane, and n-dodecane
- cyclodecane light liquid isoparaffin
- hydrogenated polyisobutene having a polymerization degree of 15 to 50.
- Other hydrocarbon oils such as isoparaffinic hydrocarbon oils such as hydrogenated polyisobutene and cyclic paraffinic hydrocarbon oils such as cyclododecane can be mentioned, but the present invention is not limited to these examples. These volatile oils may be used
- Non-volatile oil In the present invention, after applying a water-in-oil type emulsified solid cosmetic, it suppresses the evaporation of water from the skin, keeps the skin moist, and provides a "moist feeling" (emollient effect), which is a property of softening the skin. From the viewpoint of application, it is preferable to use a combination of a volatile silicone oil and a non-volatile oil.
- Nonvolatile oils include, for example, nonvolatile silicone oils (silicone oils other than the volatile silicone oils) and ester oils, but the present invention is not limited to these examples.
- Specific examples of nonvolatile oils include dimethicone (methylpolysiloxane), diphenylsiloxyphenyl trimethicone, diisostearyl malate, and ethylhexyl methoxycinnamate, which have a viscosity of 10 cs, 6 cs, or 5 cs at normal temperature (25° C.).
- the present invention is not limited only to such examples.
- Each of these non-volatile oils may be used alone, or two or more of them may be used in combination.
- the amount of non-volatile oil suppresses the evaporation of water from the skin after applying the water-in-oil emulsified solid cosmetic, imparts a moist feeling (emollient effect), and improves the usability of the water-in-oil emulsified solid cosmetic. From the viewpoint of improving the should be adjusted to
- (C) Silicone-based surfactant In the present invention, since the water-in-oil type emulsified solid cosmetic contains a silicone-based surfactant, emulsification of the volatile silicone oil is promoted, and the water-in-oil type A dry feeling is imparted to the application surface of the emulsified solid cosmetic.
- the silicone-based surfactant preferably has a silicone skeleton in its main skeleton and hydrophilic groups in its side chains.
- silicone-based surfactants include polyoxyalkylene-modified silicones and polyglycerin-modified silicones, but the present invention is not limited to these examples.
- Specific examples of silicone-based surfactants include polyethylene glycol (9) polydimethylsiloxyethyl dimethicone (PEG-9 polydimethylsiloxyethyl dimethicone) (the number in parentheses indicates the number of moles of ethylene oxide added; the same shall apply hereinafter).
- silicone-based surfactants are commercially available from Shin-Etsu Chemical Co., Ltd., for example.
- the lower limit of the content of the silicone surfactant in the water-in-oil emulsified solid cosmetic promotes emulsification of the volatile silicone oil and imparts a dry feeling to the surface on which the water-in-oil emulsified solid cosmetic is applied. From the viewpoint, it is preferably 1% by mass or more, more preferably 1.5% by mass or more, and the upper limit of the content is preferably 3% by mass or less from the same viewpoint as described above.
- the water-in-oil emulsified solid cosmetic may contain an appropriate amount of a surfactant other than the silicone-based surfactant within a range that does not hinder the object of the present invention.
- a surfactant other than silicone-based surfactant include nonionic fatty acid ester-based surfactants having an HLB of 5 or less, such as sorbitan sesquiisostearate, but the present invention provides only such examples. is not limited to
- the water-in-oil emulsified solid cosmetic contains powder from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied. included in the fee.
- Powders include inorganic particles and organic powders. These powders may be used alone or in combination. Among powders, inorganic powders can be preferably used.
- inorganic powder examples include titanium oxide, black titanium oxide, red iron oxide, yellow iron oxide, black iron oxide, mica, red iron oxide, sericite, talc, kaolin, bentonite, magnesium oxide, zinc oxide, aluminum oxide, oxide
- examples include zirconium, chromium oxide, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, silicon carbide, and barium sulfate, but the present invention is not limited to these examples. These metal oxide particles may be used alone or in combination.
- the surface of the powder is preferably treated with silicone from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied and suppressing cracking due to shrinkage.
- Powder that has been subjected to silicone treatment is powder that has silicone adhered to all or part of its surface.
- silicones used for silicone treatment include triethoxycaprylsilane, dimethicone (methylpolysiloxane), and methicone, but the present invention is not limited to these examples.
- the silicone content in the silicone-treated powder is not particularly limited, but is usually about 0.5 to 3% by mass.
- the average primary particle size of the powder is not particularly limited, but from the viewpoint of improving the dispersibility in the water-in-oil emulsified solid cosmetic, it is preferably 0.1 ⁇ m or more, more preferably 0.3 ⁇ m or more, and still more preferably 1 ⁇ m. As described above, it is more preferably 3 ⁇ m or more, and from the viewpoint of reducing rough feeling when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 200 ⁇ m or less, more preferably 100 ⁇ m or less, and still more preferably 80 ⁇ m or less. , and more preferably 50 ⁇ m or less.
- the average primary particle size of powder means the median size obtained from the volume-based particle size distribution measured by the laser scattering method.
- the amount of powder varies depending on the type of powder, and cannot be determined unconditionally.
- the content of the silicone surfactant in the water-in-oil emulsified solid cosmetic is preferably 10 mass from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied to the skin. % or more, more preferably 15% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less from the viewpoint of suppressing cracking due to perspiration and shrinkage of the oil content of the water-in-oil emulsified solid cosmetic. be.
- the powder may be used in combination with the crosspolymer, if necessary, to the extent that the object of the present invention is not hindered.
- the crosspolymer is a component that imparts an appropriate feel to the water-in-oil type emulsified solid cosmetic and spreads it on the skin.
- crosspolymers examples include (vinyl dimethyl/methicone silsesquioxane) crosspolymer, (vinyl dimethicone/lauryl dimethicone) crosspolymer, (vinyl dimethicone/methicone silsesquioxane) crosspolymer, (diphenyl dimethicone/vinyl diphenyl dimethicone). /silsesquioxane) crosspolymer, (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenylvinyldimethicone) crosspolymer, etc., but the present invention is not limited to these examples. These crosspolymers may be used alone or in combination.
- an appropriate amount of an ultraviolet scattering agent can be used in order to impart light scattering properties to the water-in-oil emulsified solid cosmetic composition.
- the ultraviolet scattering agent is usually fine particles having a particle diameter of about 10 to 40 nm, and is used separately from the powder.
- ultraviolet scattering agents examples include titanium oxide particles and zinc oxide particles, but the present invention is not limited to these examples.
- a chelating agent such as ethylenediaminetetraacetic acid sodium salt, an ultraviolet absorber, an antioxidant, a coloring agent, a thickener, a preservative, an antioxidant, and a texture improver.
- the water-in-oil emulsified solid cosmetic composition may contain other ingredients such as agents, moisturizing agents, fragrances, pH adjusters and astringents in appropriate amounts. These components may be used alone or in combination of two or more.
- the water-in-oil emulsified solid cosmetic may contain a water-soluble organic solvent, if necessary.
- water-soluble organic solvents include ethanol, propanol, butanol, ethylene glycol, diethylene glycol, propanediol, glycerin, diglycerin, phenoxyethanol, etc., but the present invention is not limited to these examples.
- the water-soluble organic solvents may be used alone or in combination of two or more.
- the content of the water-soluble organic solvent in the water-in-oil emulsified solid cosmetic composition varies depending on the type of the water-soluble organic solvent, and cannot be generally determined, but is usually preferably 20% by mass or less.
- the content of the water-soluble organic solvent in the water-in-oil emulsified solid cosmetic is 1% by mass. It is preferable that it is above.
- the water-in-oil type emulsified solid cosmetic In the water-in-oil type emulsified solid cosmetic, the remainder of the components (A) to (D) and optionally contained components is water. Therefore, the water-in-oil emulsified solid cosmetic composition contains water-in-oil emulsified solid cosmetics so that the content of each of the above-described components (A) to (D) and optionally contained components is at a predetermined value. Water is contained in the emulsified solid cosmetic. In addition, it is preferable to use purified water as water.
- a water-in-oil emulsified solid cosmetic is obtained, for example, by mixing components (A) to (D), water, and optional ingredients. It can be obtained by putting the dispersion into a container of a predetermined shape and molding it. When preparing the dispersion, each component may be mixed while being heated, if necessary, in order to uniformly disperse each component.
- the water-in-oil emulsified solid cosmetic can be used, for example, by filling it in a container such as a resin container or a metal container having a predetermined shape on the inner surface.
- the shape of the water-in-oil emulsified solid cosmetic differs depending on the use of the water-in-oil emulsified solid cosmetic, so it cannot be determined unconditionally.
- Examples of the shape of the water-in-oil emulsified solid cosmetic composition include a stick shape, a plate shape, and a cylindrical shape, but the present invention is not limited to these examples.
- the water-in-oil emulsified solid cosmetic obtained as described above does not easily cause perspiration of oil, does not easily crack (crack) on the surface even at low temperatures, and is solid at room temperature but externally. It liquefies when subjected to a stress, is excellent in usability, and exhibits excellent properties such as imparting a smooth feeling to the applied surface.
- the water-in-oil emulsified solid cosmetic of the present invention exhibits such excellent properties is not clear, but the water-in-oil emulsified solid cosmetic contains (A) a wax component and (B) a volatile silicone. Since the oil and (C) the silicone surfactant are contained, the water-in-oil emulsified solid cosmetic composition forms a so-called "card house structure", and the ceresin contained in the wax component (A). form the walls of the card house structure, and the isoparaffin-based wax and fatty acid ester-based wax contained in the wax component (A) stabilize the card house structure.
- the water-in-oil emulsified solid cosmetic composition of the present invention contains a volatile silicone oil 2 and an aqueous component 3 (silicone surfactant and water) in a chamber composed of a wax component 1 as shown in FIG.
- a card house structure is formed in which the containing component (water-in-oil emulsified component) and the powder 4 are confined, and when an external stress is applied to the water-in-oil emulsified solid cosmetic, the chamber is It collapses, and a component (water-in-oil emulsified component) containing a volatile silicone oil 2 and an aqueous component 3 and powder 4 are released from the chamber, and the released component becomes a cream and is applied to the skin.
- FIG. 1 is a schematic explanatory diagram schematically showing the structure of the water-in-oil emulsified solid cosmetic of the present invention, and the present invention is not limited by the schematic explanatory diagram. .
- water-in-oil emulsified solid cosmetics are less prone to perspiration of oil, less prone to cracks (cracks) on the surface even at low temperatures, and are solid at room temperature but externally. It liquefies when stress is applied, has excellent usability, and has excellent properties such as giving a smooth feeling on the application surface, so it is used in makeup such as foundation, concealer, cheek, eye shadow, eyebrow, blush, and lipstick. It can be suitably used for cosmetics, sunscreen cosmetics and the like.
- Examples 1-21 and Comparative Examples 1-15 Each component shown in Tables 1 and 2 (the unit of the amount of each component: mass%) was mixed so as to have a uniform composition, the resulting dispersion was degassed, and a water-in-oil emulsified solid having a predetermined shape was obtained. A water-in-oil emulsified solid cosmetic was obtained by filling a mold having an inner surface shape corresponding to the cosmetic.
- the powder used had an average primary particle size in the range of 0.1 to 50 ⁇ m, and the light scattering agent used had a particle size in the range of 0.005 to 0.05 ⁇ m.
- the details of the components listed in each table are as follows.
- ⁇ Short-chain dimethicone methylpolysiloxane with a viscosity of 10 cs at 25° C.
- ⁇ Silicone-treated titanium oxide titanium oxide surface-treated with dimethicone
- ⁇ Silicone-treated oxide red iron oxide: red oxide surface-treated with dimethicone Iron/silicone treated Yellow iron oxide: Yellow iron oxide surface treated with dimethicone/Silicone treated Black iron oxide: Black iron oxide surface treated with dimethicone/Silicone treated mica: Surface treated with dimethicone mica/titanium oxide/mica/tin oxide/triethoxycaprylylsilane: powder surface-treated with triethoxycaprylylsilane (silicone)/(vinyldimethyl/methicone silsesquioxane) crosspolymer: powder Ingredients that can be used in combination with the body ⁇ EDTA-2Na: Ethylenediaminetetraacetic acid diso
- Example 2 A transmission electron micrograph of the water-in-oil emulsified solid cosmetic obtained in Example 1 is shown in FIG. In FIG. 2, the white linear portion is the plate-like wax, and the black portion is the component containing oil, aqueous component and powder.
- the water-in-oil emulsified solid cosmetic has a card house structure in which the oil, the aqueous component, and the powder 4 are confined inside a chamber composed of wax. I understand.
- a water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then placed in oil.
- the surface of the water-type emulsified solid cosmetic is visually observed at room temperature and evaluated according to the following evaluation criteria.
- ⁇ The water-in-oil emulsified solid cosmetic is slightly solidified (accepted).
- x The water-in-oil emulsified solid cosmetic does not solidify (failed).
- a water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is applied. is observed for ease of removal when taken with a puff at room temperature, and evaluated based on the following evaluation criteria.
- a water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is The cosmetic is solid when taken with a puff at room temperature, and it is examined whether it changes to a liquid state when force is applied to the cosmetic, and evaluated based on the following evaluation criteria.
- x The cosmetic is not solid when taken with a puff (failed).
- the water-in-oil emulsified solid cosmetic with at least one evaluation of "x" is disqualified.
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Abstract
Provided is a water-in-oil emulsified solid cosmetic material which contains (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) a powder, wherein the (A) wax component contains ceresin, an isoparaffin wax and a fatty acid ester wax. The provided cosmetic material imparts a dry feeling to the coated surface, is a solid at room temperature yet liquefies when external pressure is applied thereto, has superb use properties, is unlikely to exhibit cracking (splitting) in the surface thereof even at low temperatures, and is unlikely to exhibit sweating from the oil component thereof.
Description
本発明は、油中水型乳化固形化粧料に関する。さらに詳しくは、本発明は、ファンデーション、コンシーラー、チーク、アイシャドウ、アイブロウ、頬紅、口紅などのメーキャップ化粧料、日焼け止め化粧料などに好適に使用することができる油中水型乳化固形化粧料に関する。
The present invention relates to a water-in-oil emulsified solid cosmetic. More particularly, the present invention relates to a water-in-oil emulsified solid cosmetic that can be suitably used for makeup cosmetics such as foundation, concealer, blush, eyeshadow, eyebrow, blusher and lipstick, sunscreen cosmetics, and the like. .
油中水型乳化固形化粧料は、皮膚に対して滑らかな感触を与え、固形であることから使いやすく、持ち運びなどの使用性が良好であるという利点を有する。
The water-in-oil emulsified solid cosmetic has the advantages of giving a smooth feel to the skin, being easy to use because it is solid, and having good usability such as portability.
近年、充分な硬度を有し、瑞々しく透明感があり、仕上がりが早く、きしみがない良好な使用感触を有し、保型性と使用感の双方に優れている油中水型乳化固形化粧料として、（ａ）シリコーン油、（ｂ）ヨウ素価および酸価が３．０以下である精製ライスワックスを含むワックスおよび（ｃ）ポリオキシアルキレン変性オルガノポリシロキサンが配合され、ワックス中における前記精製ライスワックスの含有率が３０質量％以上である固形状油中水型乳化化粧料が提案されている（例えば、特許文献１参照）。
In recent years, water-in-oil emulsified solids that have sufficient hardness, have a fresh and transparent feel, finish quickly, have a good feeling of use without creaking, and are excellent in both shape retention and feeling in use. As cosmetics, (a) silicone oil, (b) wax containing refined rice wax having an iodine value and an acid value of 3.0 or less, and (c) polyoxyalkylene-modified organopolysiloxane are blended, and the wax contains the above A solid water-in-oil emulsified cosmetic containing a refined rice wax content of 30% by mass or more has been proposed (see, for example, Patent Document 1).
油中水型乳化固形化粧料には、前記固形状油中水型乳化化粧料に見られるように、当該油中水型乳化化粧料を固形化させるためにワックスが使用されている。しかし、油中水型乳化化粧料におけるワックスの含有率が高いとき、当該油中水型乳化化粧料の表面が固くなるため、当該油中水型乳化化粧料が収容されている容器から当該油中水型乳化化粧料を取り出し難いという欠点がある。そこで、油中水型乳化化粧料の表面を柔らかくするために当該油中水型乳化化粧料におけるワックスの含有率を低くした場合、当該油中水型乳化化粧料の表面から油分が滲み出したり、油滴が発生する現象（以下、「油分の発汗」という）が発生したり、低温下で当該油中水型乳化化粧料にひび割れ（亀裂）が発生したりするという欠点がある。
As seen in the solid water-in-oil emulsified cosmetic, the water-in-oil emulsified solid cosmetic uses wax to solidify the water-in-oil emulsified cosmetic. However, when the content of wax in the water-in-oil emulsified cosmetic is high, the surface of the water-in-oil emulsified cosmetic becomes hard. There is a drawback that it is difficult to take out the medium-water type emulsified cosmetic. Therefore, when the content of wax in the water-in-oil emulsified cosmetic is reduced in order to soften the surface of the water-in-oil emulsified cosmetic, the oil may seep out from the surface of the water-in-oil emulsified cosmetic. However, there are drawbacks such as the occurrence of a phenomenon in which oil droplets are generated (hereinafter referred to as "oil perspiration"), and the occurrence of cracks in the water-in-oil emulsified cosmetic composition at low temperatures.
本発明は、前記従来技術に鑑みてなされたものであり、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れており、塗布面でサラサラ感を付与する油中水型乳化固形化粧料を提供することを課題とする。
The present invention has been made in view of the above-mentioned prior art. To provide a water-in-oil type emulsified solid cosmetic that liquefies when stress is applied, is excellent in usability, and imparts a smooth feeling on a coating surface.
本発明は、（Ａ）ワックス成分、（Ｂ）揮発性シリコーン油、（Ｃ）シリコーン系界面活性剤および（Ｄ）粉体を含有してなる油中水型乳化固形化粧料であって、前記ワックス成分がセレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックスを含有する油中水型乳化固形化粧料に関する。
The present invention provides a water-in-oil emulsified solid cosmetic comprising (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) powder, wherein the The present invention relates to a water-in-oil emulsified solid cosmetic containing ceresin, isoparaffin wax and fatty acid ester wax as wax components.
本発明によれば、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れており、塗布面でサラサラ感を付与する油中水型乳化固形化粧料が提供される。
According to the present invention, it is difficult for oil perspiration to occur, the surface is hard to crack (crack) even at low temperatures, and although it is solid at room temperature, it liquefies when external stress is applied, and can be used. To provide a water-in-oil type emulsified solid cosmetic which has excellent properties and imparts a smooth feeling on the application surface.
本発明の油中水型乳化固形化粧料は、前記したように、（Ａ）ワックス成分、（Ｂ）揮発性シリコーン油、（Ｃ）シリコーン系界面活性剤および（Ｄ）粉体を含有する。本発明の油中水型乳化固形化粧料は、前記（Ａ）成分～（Ｄ）成分、なかでも前記（Ａ）成分～（Ｃ）成分を含有し、前記（Ａ）ワックス成分がセレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックスを含有しているので、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れており、塗布面でサラサラ感を付与するという優れた性質を発現する。
As described above, the water-in-oil emulsified solid cosmetic composition of the present invention contains (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) powder. The water-in-oil emulsified solid cosmetic composition of the present invention contains the components (A) to (D), especially the components (A) to (C), and the wax component (A) is ceresin or isoparaffin. Since it contains a base wax and a fatty acid ester-based wax, it is difficult for oil to perspire, the surface is hard to crack (crack) even at low temperatures, and although it is solid at room temperature, it is resistant to external stress. It liquefies when applied, is excellent in usability, and exhibits an excellent property of imparting a dry feeling to the application surface.
（Ａ）ワックス成分
ワックス成分は、セレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックスを含有する。 (A) Wax component The wax component contains ceresin, isoparaffin wax and fatty acid ester wax.
ワックス成分は、セレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックスを含有する。 (A) Wax component The wax component contains ceresin, isoparaffin wax and fatty acid ester wax.
〔セレシン〕
セレシンは、石油産地の近辺で採れる地ロウと称されるオゾケライトを精製することによって得られる、炭素数が２９～３５である微結晶性のｎ－パラフィン系炭化水素化合物である。セレシンは、約６０～９５℃の融点を有することから、室温で固形を有する。セレシンは、例えば、日興リカ（株）などから商業的に容易に入手することができる。 [Ceresin]
Ceresin is a microcrystalline n-paraffinic hydrocarbon compound having 29 to 35 carbon atoms, which is obtained by refining ozokerite, which is called zokerite, which is mined near petroleum production areas. Ceresin has a melting point of about 60-95° C. and is therefore solid at room temperature. Ceresin is readily commercially available from, for example, Nikko Rica Corporation.
セレシンは、石油産地の近辺で採れる地ロウと称されるオゾケライトを精製することによって得られる、炭素数が２９～３５である微結晶性のｎ－パラフィン系炭化水素化合物である。セレシンは、約６０～９５℃の融点を有することから、室温で固形を有する。セレシンは、例えば、日興リカ（株）などから商業的に容易に入手することができる。 [Ceresin]
Ceresin is a microcrystalline n-paraffinic hydrocarbon compound having 29 to 35 carbon atoms, which is obtained by refining ozokerite, which is called zokerite, which is mined near petroleum production areas. Ceresin has a melting point of about 60-95° C. and is therefore solid at room temperature. Ceresin is readily commercially available from, for example, Nikko Rica Corporation.
本発明においては、油中水型乳化固形化粧料にセレシンが含有されていることから、当該油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れるという優れた性質を発現する。
In the present invention, since ceresin is contained in the water-in-oil emulsified solid cosmetic, the water-in-oil emulsified solid cosmetic is less likely to perspire oil, and cracks on the surface even at low temperatures ( It is solid at room temperature, but liquefies when external stress is applied, and exhibits excellent usability.
油中水型乳化固形化粧料におけるセレシンの含有率は、油分の発汗および低温下でのひび割れ（亀裂）の発生を抑制し、室温下で固体であるが外的応力が加わったときに液化させ、使用性を向上させる観点から、３質量％以上であることが好ましく、油中水型乳化固形化粧料を皮膚に塗布したときの塗布性を向上させる観点から、６質量％以下であることが好ましい。
The content of ceresin in water-in-oil emulsified solid cosmetics suppresses perspiration of oil and the occurrence of cracks (cracks) at low temperatures. , from the viewpoint of improving usability, it is preferably 3% by mass or more, and from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 6% by mass or less. preferable.
〔イソパラフィン系ワックス〕
イソパラフィン系ワックスは、石油系ワックスの一種であり、主としてイソパラフィンを含有するワックスである。本発明においては、油中水型乳化固形化粧料にイソパラフィン系ワックスが含有されていることから、当該油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れるという優れた性質を発現する。 [Isoparaffin wax]
Isoparaffin wax is a type of petroleum wax, and is a wax that mainly contains isoparaffin. In the present invention, since the water-in-oil emulsified solid cosmetic contains isoparaffin wax, the water-in-oil emulsified solid cosmetic hardly causes perspiration of oil, and even at low temperatures, it does not adhere to the surface. It is hard to crack (crack), and although it is solid at room temperature, it liquefies when external stress is applied, and exhibits excellent properties such as excellent usability.
イソパラフィン系ワックスは、石油系ワックスの一種であり、主としてイソパラフィンを含有するワックスである。本発明においては、油中水型乳化固形化粧料にイソパラフィン系ワックスが含有されていることから、当該油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れるという優れた性質を発現する。 [Isoparaffin wax]
Isoparaffin wax is a type of petroleum wax, and is a wax that mainly contains isoparaffin. In the present invention, since the water-in-oil emulsified solid cosmetic contains isoparaffin wax, the water-in-oil emulsified solid cosmetic hardly causes perspiration of oil, and even at low temperatures, it does not adhere to the surface. It is hard to crack (crack), and although it is solid at room temperature, it liquefies when external stress is applied, and exhibits excellent properties such as excellent usability.
イソパラフィン系ワックスのなかでは、加熱時の粘着性に優れており、油分の発汗を抑制する観点から、炭素数が３１～５０である分枝鎖状脂肪族炭化水素からなるイソパラフィン系ワックスが好ましい。
Among the isoparaffinic waxes, isoparaffinic waxes made of branched aliphatic hydrocarbons having 31 to 50 carbon atoms are preferable from the viewpoint of excellent adhesiveness when heated and suppressing perspiration of oil.
なお、油中水型乳化固形化粧料には、本発明の目的を阻害しない範囲内でセレシンおよびイソパラフィン系ワックス以外の他のパラフィン系ワックスが適量で含まれていてもよい。他のパラフィン系ワックスとしては、例えば、炭素数が２０～３６である直鎖状脂肪族炭化水素からなるｎ－パラフィン系ワックスなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。
The water-in-oil emulsified solid cosmetic may contain an appropriate amount of paraffin wax other than ceresin and isoparaffin wax within a range that does not impair the object of the present invention. Other paraffin waxes include, for example, n-paraffin waxes composed of linear aliphatic hydrocarbons having 20 to 36 carbon atoms, but the present invention is limited only to such examples. isn't it.
本発明においては、イソパラフィン系ワックスとしてマイクロクリスタリンワックスを好適に使用することができる。マイクロクリスタリンワックスの融点は、ｎ－パラフィンワックスよりも高く、７２～１０１℃である。マイクロクリスタリンワックスは、例えば、山桂産業（株）などから商業的に容易に入手することができるワックスである。
In the present invention, microcrystalline wax can be suitably used as the isoparaffinic wax. The melting point of microcrystalline wax is higher than that of n-paraffin wax, 72-101°C. Microcrystalline wax is a wax that is readily commercially available from Sankei Sangyo Co., Ltd., for example.
油中水型乳化固形化粧料におけるイソパラフィン系ワックスの含有率は、油中水型乳化固形化粧料の油分の発汗および収縮による割れを抑制する観点から、０．１質量％以上であることが好ましく、油中水型乳化固形化粧料を皮膚に塗布したときの塗布性を向上させる観点から、０．３質量％以下であることが好ましい。
The isoparaffin-based wax content in the water-in-oil emulsified solid cosmetic is preferably 0.1% by mass or more from the viewpoint of suppressing cracking due to perspiration and shrinkage of oil in the water-in-oil emulsified solid cosmetic. , from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 0.3% by mass or less.
〔脂肪酸エステル系ワックス〕
脂肪酸エステル系ワックスとしては、例えば、カルナバワックス（カルナバロウともいう）、キャンデリラワックス、ライスワックス、ヒマワリワックス、モクロウなどの植物系ワックスが挙げられるが、本発明は、かかる例示のみに限定されるものではない。脂肪酸エステル系ワックスは、油性を有する原料を纏める性質および硬度を調整する性質を有している。脂肪酸エステル系ワックスのなかでは、油性を有する原料を纏める性質を十分に発現させる観点から、８０℃以上の融点を有する脂肪酸エステル系ワックスが好ましく、カルナバワックスがより好ましい。 [Fatty acid ester wax]
Examples of fatty acid ester-based waxes include plant-based waxes such as carnauba wax (also called carnauba wax), candelilla wax, rice wax, sunflower wax, and Japanese wax, but the present invention is limited only to such examples. isn't it. Fatty acid ester-based waxes have the property of combining oily raw materials and the property of adjusting hardness. Among fatty acid ester-based waxes, fatty acid ester-based waxes having a melting point of 80° C. or higher are preferred, and carnauba wax is more preferred, from the viewpoint of sufficiently expressing the property of binding oily raw materials.
脂肪酸エステル系ワックスとしては、例えば、カルナバワックス（カルナバロウともいう）、キャンデリラワックス、ライスワックス、ヒマワリワックス、モクロウなどの植物系ワックスが挙げられるが、本発明は、かかる例示のみに限定されるものではない。脂肪酸エステル系ワックスは、油性を有する原料を纏める性質および硬度を調整する性質を有している。脂肪酸エステル系ワックスのなかでは、油性を有する原料を纏める性質を十分に発現させる観点から、８０℃以上の融点を有する脂肪酸エステル系ワックスが好ましく、カルナバワックスがより好ましい。 [Fatty acid ester wax]
Examples of fatty acid ester-based waxes include plant-based waxes such as carnauba wax (also called carnauba wax), candelilla wax, rice wax, sunflower wax, and Japanese wax, but the present invention is limited only to such examples. isn't it. Fatty acid ester-based waxes have the property of combining oily raw materials and the property of adjusting hardness. Among fatty acid ester-based waxes, fatty acid ester-based waxes having a melting point of 80° C. or higher are preferred, and carnauba wax is more preferred, from the viewpoint of sufficiently expressing the property of binding oily raw materials.
油中水型乳化固形化粧料における脂肪酸エステル系ワックスの含有率は、油中水型乳化固形化粧料の油分の発汗および収縮による割れを抑制する観点から、０．１質量％以上であることが好ましく、油中水型乳化固形化粧料を皮膚に塗布したときの塗布性を向上させる観点から、０．２質量％以下であることが好ましい。
The content of the fatty acid ester wax in the water-in-oil emulsified solid cosmetic is preferably 0.1% by mass or more from the viewpoint of suppressing cracking due to perspiration and shrinkage of the oil content of the water-in-oil emulsified solid cosmetic. Preferably, it is 0.2% by mass or less from the viewpoint of improving the applicability when the water-in-oil emulsified solid cosmetic is applied to the skin.
〔その他のワックス〕
なお、本発明においては、本発明の目的を阻害しない範囲内でセレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックス以外のその他のワックスが適量で含まれていてもよい。 [Other waxes]
In addition, in the present invention, waxes other than ceresin, isoparaffin wax and fatty acid ester wax may be contained in an appropriate amount within a range that does not hinder the object of the present invention.
なお、本発明においては、本発明の目的を阻害しない範囲内でセレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックス以外のその他のワックスが適量で含まれていてもよい。 [Other waxes]
In addition, in the present invention, waxes other than ceresin, isoparaffin wax and fatty acid ester wax may be contained in an appropriate amount within a range that does not hinder the object of the present invention.
その他のワックスとしては、例えば、ミツロウ、ゲイロウなどの動物由来のワックスなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらのワックスは、それぞれ単独で用いてもよく、２種類以上を併用してもよい。その他のワックスの融点は、特に限定されないが、通常、６０～１２０℃であることが好ましい。
Other waxes include, for example, animal-derived waxes such as beeswax and gay wax, but the present invention is not limited to such examples. These waxes may be used alone or in combination of two or more. Although the melting point of the other wax is not particularly limited, it is usually preferably from 60 to 120°C.
（Ｂ）揮発性シリコーン油
本発明においては、油中水型乳化固形化粧料に揮発性シリコーン油が含有されていることから、当該油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、さらに塗布面でサラサラ感を付与するという優れた性質を発現する。 (B) Volatile silicone oil In the present invention, since the water-in-oil emulsified solid cosmetic contains a volatile silicone oil, the water-in-oil emulsified solid cosmetic does not cause perspiration of oil. It is hard and does not easily crack (crack) on the surface even at low temperatures.
本発明においては、油中水型乳化固形化粧料に揮発性シリコーン油が含有されていることから、当該油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、さらに塗布面でサラサラ感を付与するという優れた性質を発現する。 (B) Volatile silicone oil In the present invention, since the water-in-oil emulsified solid cosmetic contains a volatile silicone oil, the water-in-oil emulsified solid cosmetic does not cause perspiration of oil. It is hard and does not easily crack (crack) on the surface even at low temperatures.
揮発性シリコーン油は、常温（２５℃）で流動性を有する液状シリコーン油である。揮発性シリコーン油としては、例えば、１気圧における沸点が３００℃以下である揮発性シリコーン油、室温（２５℃）で好ましくは１０ｃｓ以下、より好ましくは５ｃｓ以下の粘度を有する直鎖状または分岐鎖状のシリコーン油などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらの揮発性シリコーン油は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。揮発性シリコーン油のなかでは、ケイ素原子数が４～６である環状シリコーン油およびケイ素原子数が２～５である鎖状シリコーン油が好ましい。
A volatile silicone oil is a liquid silicone oil that has fluidity at room temperature (25°C). Volatile silicone oils include, for example, volatile silicone oils having a boiling point of 300° C. or less at 1 atm, linear or branched chains having a viscosity of preferably 10 cs or less, more preferably 5 cs or less at room temperature (25° C.) silicone oil, etc., but the present invention is not limited to such examples. Each of these volatile silicone oils may be used alone, or two or more of them may be used in combination. Among the volatile silicone oils, cyclic silicone oils having 4 to 6 silicon atoms and linear silicone oils having 2 to 5 silicon atoms are preferred.
揮発性シリコーン油の具体例としては、シクロペンタシロキサン、ヘキサメチルシクロトリシロキサン（Ｄ３）、オクタメチルテトラシクロシロキサン（Ｄ４）、デカメチルシクロペンタシロキサン（Ｄ５）、ドデカメチルシクロヘキサシロキサン（Ｄ６）などの環状シリコーン油；短鎖ジメチコン（メチルポリシロキサン）〔常温（２５℃）における粘度が２ｃｓ、１．５ｃｓまたは１ｃｓであるメチルポリシロキサン〕、メチルトリメチコン、ヘプタメチルヘキシルトリシロキサン、ヘプタメチルオクチルトリシロキサン、ヘキサメチルジシロキサン、オクタメチルトリシロキサン、デカメチルテトラシロキサン、ドデカメチルペンタシロキサンなどの鎖状シリコーン油などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらの揮発性シリコーン油は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。
Specific examples of volatile silicone oils include cyclopentasiloxane, hexamethylcyclotrisiloxane (D3), octamethyltetracyclosiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), and the like. cyclic silicone oil; short-chain dimethicone (methylpolysiloxane) [methylpolysiloxane having a viscosity of 2 cs, 1.5 cs or 1 cs at room temperature (25 ° C.)], methyltrimethicone, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane Examples include chain silicone oils such as siloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and dodecamethylpentasiloxane, but the present invention is not limited to these examples. Each of these volatile silicone oils may be used alone, or two or more of them may be used in combination.
油中水型乳化固形化粧料における揮発性シリコーン油の含有率は、油中水型乳化固形化粧料を塗布したときの粉体感（パウダリー感）を付与し、収縮による割れを抑制する観点から、好ましくは５質量％以上、より好ましくは６質量％以上であり、油中水型乳化固形化粧料の油分の発汗を抑制する観点から、好ましくは２５質量％以下、より好ましくは２３質量％以下、さらに好ましくは２２質量％以下である。
The content of the volatile silicone oil in the water-in-oil emulsified solid cosmetic is determined from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied and suppressing cracking due to shrinkage. It is preferably 5% by mass or more, more preferably 6% by mass or more, and from the viewpoint of suppressing sweating of the oil content of the water-in-oil emulsified solid cosmetic, preferably 25% by mass or less, more preferably 23% by mass or less, More preferably, it is 22% by mass or less.
〔その他の揮発油〕
本発明においては、本発明の目的を阻害しない範囲内で揮発性シリコーン油以外のその他の揮発油が適量で含まれていてもよい。 [Other volatile oils]
In the present invention, other volatile oils other than volatile silicone oils may be contained in appropriate amounts within a range that does not hinder the object of the present invention.
本発明においては、本発明の目的を阻害しない範囲内で揮発性シリコーン油以外のその他の揮発油が適量で含まれていてもよい。 [Other volatile oils]
In the present invention, other volatile oils other than volatile silicone oils may be contained in appropriate amounts within a range that does not hinder the object of the present invention.
その他の揮発油としては、イソドデカン、イソデカン、イソヘキサデカン、ｎ－デカン、ｎ－ウンデカン、ｎ－ドデカンなどのパラフィン系炭化水素油、シクロデカン、軽質流動イソパラフィン、前記重合度が１５～５０の水添ポリイソブテン以外の水添ポリイソブテンなどのイソパラフィン系炭化水素油、シクロドデカンなどの環状パラフィン炭化水素油などの炭化水素油が挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらの揮発性油は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。
Other volatile oils include paraffinic hydrocarbon oils such as isododecane, isodecane, isohexadecane, n-decane, n-undecane, and n-dodecane, cyclodecane, light liquid isoparaffin, and hydrogenated polyisobutene having a polymerization degree of 15 to 50. Other hydrocarbon oils such as isoparaffinic hydrocarbon oils such as hydrogenated polyisobutene and cyclic paraffinic hydrocarbon oils such as cyclododecane can be mentioned, but the present invention is not limited to these examples. These volatile oils may be used alone or in combination of two or more.
〔不揮発油〕
本発明においては、油中水型乳化固形化粧料を塗布した後に、皮膚からの水分の蒸発を抑制し、皮膚のうるおいを保ち、皮膚を柔らかくする性質である「しっとり感」（エモリエント効果）を付与する観点から、揮発性シリコーン油と不揮発油とを併用することが好ましい。 [Non-volatile oil]
In the present invention, after applying a water-in-oil type emulsified solid cosmetic, it suppresses the evaporation of water from the skin, keeps the skin moist, and provides a "moist feeling" (emollient effect), which is a property of softening the skin. From the viewpoint of application, it is preferable to use a combination of a volatile silicone oil and a non-volatile oil.
本発明においては、油中水型乳化固形化粧料を塗布した後に、皮膚からの水分の蒸発を抑制し、皮膚のうるおいを保ち、皮膚を柔らかくする性質である「しっとり感」（エモリエント効果）を付与する観点から、揮発性シリコーン油と不揮発油とを併用することが好ましい。 [Non-volatile oil]
In the present invention, after applying a water-in-oil type emulsified solid cosmetic, it suppresses the evaporation of water from the skin, keeps the skin moist, and provides a "moist feeling" (emollient effect), which is a property of softening the skin. From the viewpoint of application, it is preferable to use a combination of a volatile silicone oil and a non-volatile oil.
不揮発油は、化粧料に使用することができる不揮発油であればよく、特に制限されない。不揮発油としては、例えば、不揮発性シリコーン油（前記揮発性シリコーン油以外のシリコーン油）、エステル油などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。不揮発油の具体例としては、例えば、常温（２５℃）における粘度が１０ｃｓ、６ｃｓまたは５ｃｓであるジメチコン（メチルポリシロキサン）、ジフェニルシロキシフェニルトリメチコン、リンゴ酸ジイソステアリル、メトキシケイ皮酸エチルヘキシルなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらの不揮発油は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。
The non-volatile oil is not particularly limited as long as it can be used in cosmetics. Nonvolatile oils include, for example, nonvolatile silicone oils (silicone oils other than the volatile silicone oils) and ester oils, but the present invention is not limited to these examples. Specific examples of nonvolatile oils include dimethicone (methylpolysiloxane), diphenylsiloxyphenyl trimethicone, diisostearyl malate, and ethylhexyl methoxycinnamate, which have a viscosity of 10 cs, 6 cs, or 5 cs at normal temperature (25° C.). However, the present invention is not limited only to such examples. Each of these non-volatile oils may be used alone, or two or more of them may be used in combination.
不揮発油の量は、油中水型乳化固形化粧料を塗布した後に、皮膚からの水分の蒸発を抑制し、しっとり感（エモリエント効果）を付与とともに、油中水型乳化固形化粧料の使用性を向上させる観点から、揮発性シリコーン油と不揮発油との質量比（揮発油／不揮発油）の値が好ましくは０．１６～１．０、より好ましくは０．１７～１．０となるように調整することが望ましい。
The amount of non-volatile oil suppresses the evaporation of water from the skin after applying the water-in-oil emulsified solid cosmetic, imparts a moist feeling (emollient effect), and improves the usability of the water-in-oil emulsified solid cosmetic. From the viewpoint of improving the should be adjusted to
（Ｃ）シリコーン系界面活性剤
本発明においては、油中水型乳化固形化粧料にシリコーン系界面活性剤が含有されていることから、揮発性シリコーン油の乳化が促進され、当該油中水型乳化固形化粧料の塗布面にサラサラ感が付与される。 (C) Silicone-based surfactant In the present invention, since the water-in-oil type emulsified solid cosmetic contains a silicone-based surfactant, emulsification of the volatile silicone oil is promoted, and the water-in-oil type A dry feeling is imparted to the application surface of the emulsified solid cosmetic.
本発明においては、油中水型乳化固形化粧料にシリコーン系界面活性剤が含有されていることから、揮発性シリコーン油の乳化が促進され、当該油中水型乳化固形化粧料の塗布面にサラサラ感が付与される。 (C) Silicone-based surfactant In the present invention, since the water-in-oil type emulsified solid cosmetic contains a silicone-based surfactant, emulsification of the volatile silicone oil is promoted, and the water-in-oil type A dry feeling is imparted to the application surface of the emulsified solid cosmetic.
シリコーン系界面活性剤は、主骨格にシリコーン骨格を有し、側鎖に親水性基を有することが好ましい。シリコーン系界面活性剤としては、ポリオキシアルキレン変性シリコーン、ポリグリセリン変性シリコーンなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。シリコーン系界面活性剤の具体例としては、例えば、ポリエチレングリコール（９）ポリジメチルシロキシエチルジメチコン（ＰＥＧ－９ポリジメチルシロキシエチルジメチコン）（カッコ内の数字はエチレンオキシドの付加モル数を示す。以下同様）、ポリエチレングリコール（１０）ポリジメチルシロキシエチルジメチコン（ＰＥＧ－１０ジメチコン）、ラウリルポリエチレングリコール（９）ポリジメチルシロキシエチルジメチコン（ラウリルＰＥＧ－９ポリジメチルシロキシエチルジメチコン）などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらのシリコーン系界面活性剤は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。シリコーン系界面活性剤は、例えば、信越化学工業（株）などから商業的に容易に入手することができる。
The silicone-based surfactant preferably has a silicone skeleton in its main skeleton and hydrophilic groups in its side chains. Examples of silicone-based surfactants include polyoxyalkylene-modified silicones and polyglycerin-modified silicones, but the present invention is not limited to these examples. Specific examples of silicone-based surfactants include polyethylene glycol (9) polydimethylsiloxyethyl dimethicone (PEG-9 polydimethylsiloxyethyl dimethicone) (the number in parentheses indicates the number of moles of ethylene oxide added; the same shall apply hereinafter). , polyethylene glycol (10) polydimethylsiloxyethyl dimethicone (PEG-10 dimethicone), lauryl polyethylene glycol (9) polydimethylsiloxyethyl dimethicone (lauryl PEG-9 polydimethylsiloxyethyl dimethicone) and the like. It is not limited only to such examples. Each of these silicone-based surfactants may be used alone, or two or more of them may be used in combination. Silicone-based surfactants are commercially available from Shin-Etsu Chemical Co., Ltd., for example.
油中水型乳化固形化粧料におけるシリコーン系界面活性剤の含有率の下限値は、揮発性シリコーン油の乳化を促進し、当該油中水型乳化固形化粧料の塗布面にサラサラ感を付与する観点から、好ましくは１質量％以上、より好ましくは１．５質量％以上であり、当該含有率の上限値は、前記と同様の観点から、好ましくは３質量％以下である。
The lower limit of the content of the silicone surfactant in the water-in-oil emulsified solid cosmetic promotes emulsification of the volatile silicone oil and imparts a dry feeling to the surface on which the water-in-oil emulsified solid cosmetic is applied. From the viewpoint, it is preferably 1% by mass or more, more preferably 1.5% by mass or more, and the upper limit of the content is preferably 3% by mass or less from the same viewpoint as described above.
〔シリコーン系界面活性剤以外の界面活性剤〕
なお、油中水型乳化固形化粧料には、本発明の目的を阻害しない範囲内でシリコーン系界面活性剤以外の界面活性剤を適量で含有させることができる。シリコーン系界面活性剤以外の界面活性剤としては、例えば、セスキイソステアリン酸ソルビタンなどのＨＬＢが５以下である非イオン性の脂肪酸エステル系界面活性剤などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。 [Surfactant other than silicone surfactant]
The water-in-oil emulsified solid cosmetic may contain an appropriate amount of a surfactant other than the silicone-based surfactant within a range that does not hinder the object of the present invention. Examples of surfactants other than silicone-based surfactants include nonionic fatty acid ester-based surfactants having an HLB of 5 or less, such as sorbitan sesquiisostearate, but the present invention provides only such examples. is not limited to
なお、油中水型乳化固形化粧料には、本発明の目的を阻害しない範囲内でシリコーン系界面活性剤以外の界面活性剤を適量で含有させることができる。シリコーン系界面活性剤以外の界面活性剤としては、例えば、セスキイソステアリン酸ソルビタンなどのＨＬＢが５以下である非イオン性の脂肪酸エステル系界面活性剤などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。 [Surfactant other than silicone surfactant]
The water-in-oil emulsified solid cosmetic may contain an appropriate amount of a surfactant other than the silicone-based surfactant within a range that does not hinder the object of the present invention. Examples of surfactants other than silicone-based surfactants include nonionic fatty acid ester-based surfactants having an HLB of 5 or less, such as sorbitan sesquiisostearate, but the present invention provides only such examples. is not limited to
（Ｄ）粉体
油中水型乳化固形化粧料には、油中水型乳化固形化粧料を塗布したときの粉体感（パウダリー感）を付与する観点から粉体が油中水型乳化固形化粧料に含有される。 (D) Powder The water-in-oil emulsified solid cosmetic contains powder from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied. included in the fee.
油中水型乳化固形化粧料には、油中水型乳化固形化粧料を塗布したときの粉体感（パウダリー感）を付与する観点から粉体が油中水型乳化固形化粧料に含有される。 (D) Powder The water-in-oil emulsified solid cosmetic contains powder from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied. included in the fee.
粉体としては、無機粒子および有機粉体が挙げられる。これらの粉体は、それぞれ単独で用いてもよく、併用してもよい。粉体の中では、無機粉体を好適に用いることができる。
Powders include inorganic particles and organic powders. These powders may be used alone or in combination. Among powders, inorganic powders can be preferably used.
無機粉体としては、例えば、酸化チタン、黒色酸化チタン、赤色酸化鉄、黄色酸化鉄、黒色酸化鉄、マイカ、ベンガラ、セリサイト、タルク、カオリン、ベントナイト、酸化マグネシウム、酸化亜鉛、酸化アルミニウム、酸化ジルコニウム、酸化クロム、炭酸マグネシウム、炭酸カルシウム、ケイ酸アルミニウム、ケイ酸マグネシウム、炭化ケイ素、硫酸バリウムなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらの金属酸化物粒子は、それぞれ単独で用いてもよく、併用してもよい。
Examples of inorganic powder include titanium oxide, black titanium oxide, red iron oxide, yellow iron oxide, black iron oxide, mica, red iron oxide, sericite, talc, kaolin, bentonite, magnesium oxide, zinc oxide, aluminum oxide, oxide Examples include zirconium, chromium oxide, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, silicon carbide, and barium sulfate, but the present invention is not limited to these examples. These metal oxide particles may be used alone or in combination.
粉体は、油中水型乳化固形化粧料を塗布したときの粉体感（パウダリー感）を付与し、収縮による割れを抑制する観点から、その表面にシリコーン処理が施されていることが好ましい。シリコーン処理が施されている粉体は、その表面の全部または一部にシリコーンが付着している粉体である。シリコーン処理に用いられるシリコーンとしては、トリエトキシカプリルシラン、ジメチコン（メチルポリシロキサン）、メチコンなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。シリコーン処理が施されている粉体におけるシリコーンの含有率は、特に限定されないが、通常、０．５～３質量％程度である。
The surface of the powder is preferably treated with silicone from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied and suppressing cracking due to shrinkage. Powder that has been subjected to silicone treatment is powder that has silicone adhered to all or part of its surface. Examples of silicones used for silicone treatment include triethoxycaprylsilane, dimethicone (methylpolysiloxane), and methicone, but the present invention is not limited to these examples. The silicone content in the silicone-treated powder is not particularly limited, but is usually about 0.5 to 3% by mass.
粉体の平均一次粒子径は、特に限定されないが、油中水型乳化固形化粧料における分散性を向上させる観点から、好ましくは０．１μｍ以上、より好ましくは０．３μｍ以上、さらに好ましくは１μｍ以上、さらに一層好ましくは３μｍ以上であり、油中水型乳化固形化粧料を肌に塗布したときにざらつき感を低減させる観点から、好ましくは２００μｍ以下、より好ましくは１００μｍ以下、さらに好ましくは８０μｍ以下、さらに一層好ましくは５０μｍ以下である。粉体の平均一次粒子径は、レーザー散乱法で測定された体積基準粒度分布から求められたメジアン径を意味する。
The average primary particle size of the powder is not particularly limited, but from the viewpoint of improving the dispersibility in the water-in-oil emulsified solid cosmetic, it is preferably 0.1 μm or more, more preferably 0.3 μm or more, and still more preferably 1 μm. As described above, it is more preferably 3 μm or more, and from the viewpoint of reducing rough feeling when the water-in-oil emulsified solid cosmetic is applied to the skin, it is preferably 200 μm or less, more preferably 100 μm or less, and still more preferably 80 μm or less. , and more preferably 50 μm or less. The average primary particle size of powder means the median size obtained from the volume-based particle size distribution measured by the laser scattering method.
粉体の量は、当該粉体の種類によって異なるので一概には決定することができないことから、当該粉体の種類に応じて適宜決定することが好ましい。油中水型乳化固形化粧料におけるシリコーン系界面活性剤の含有率は、油中水型乳化固形化粧料を皮膚に塗布したときの粉体感（パウダリー感）を付与する観点から、好ましくは１０質量％以上、より好ましくは１５質量％以上であり、油中水型乳化固形化粧料の油分の発汗および収縮による割れを抑制する観点から、好ましくは３０質量％以下、より好ましくは２５質量％以下である。
The amount of powder varies depending on the type of powder, and cannot be determined unconditionally. The content of the silicone surfactant in the water-in-oil emulsified solid cosmetic is preferably 10 mass from the viewpoint of imparting a powdery feel when the water-in-oil emulsified solid cosmetic is applied to the skin. % or more, more preferably 15% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less from the viewpoint of suppressing cracking due to perspiration and shrinkage of the oil content of the water-in-oil emulsified solid cosmetic. be.
なお、粉体は、必要により、本発明の目的を阻害しない範囲内でクロスポリマーと併用されていてもよい。クロスポリマーは、油中水型乳化固形化粧料に適度な感触を付与し、皮膚上での延びを与える成分である。
It should be noted that the powder may be used in combination with the crosspolymer, if necessary, to the extent that the object of the present invention is not hindered. The crosspolymer is a component that imparts an appropriate feel to the water-in-oil type emulsified solid cosmetic and spreads it on the skin.
クロスポリマーとしては、例えば、（ビニルジメチル／メチコンシルセスキオキサン）クロスポリマー、（ビニルジメチコン／ラウリルジメチコン）クロスポリマー、（ビニルジメチコン／メチコンシルセスキオキサン）クロスポリマー、（ジフェニルジメチコン／ビニルジフェニルジメチコン／シルセスキオキサン）クロスポリマー、（ジメチコン／ビニルジメチコン）クロスポリマー、（ジメチコン／フェニルビニルジメチコン）クロスポリマーなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。これらのクロスポリマーは、それぞれ単独で用いてもよく、併用してもよい。
Examples of crosspolymers include (vinyl dimethyl/methicone silsesquioxane) crosspolymer, (vinyl dimethicone/lauryl dimethicone) crosspolymer, (vinyl dimethicone/methicone silsesquioxane) crosspolymer, (diphenyl dimethicone/vinyl diphenyl dimethicone). /silsesquioxane) crosspolymer, (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenylvinyldimethicone) crosspolymer, etc., but the present invention is not limited to these examples. These crosspolymers may be used alone or in combination.
〔紫外線散乱剤〕
本発明においては、油中水型乳化固形化粧料に光線を散乱させる性質を付与するために紫外線散乱剤を適量で用いることができる。紫外線散乱剤は、通常、１０～４０ｎｍ程度の粒子径を有する微粒子であることから、前記粉体と区別して用いられる。 [Ultraviolet scattering agent]
In the present invention, an appropriate amount of an ultraviolet scattering agent can be used in order to impart light scattering properties to the water-in-oil emulsified solid cosmetic composition. The ultraviolet scattering agent is usually fine particles having a particle diameter of about 10 to 40 nm, and is used separately from the powder.
本発明においては、油中水型乳化固形化粧料に光線を散乱させる性質を付与するために紫外線散乱剤を適量で用いることができる。紫外線散乱剤は、通常、１０～４０ｎｍ程度の粒子径を有する微粒子であることから、前記粉体と区別して用いられる。 [Ultraviolet scattering agent]
In the present invention, an appropriate amount of an ultraviolet scattering agent can be used in order to impart light scattering properties to the water-in-oil emulsified solid cosmetic composition. The ultraviolet scattering agent is usually fine particles having a particle diameter of about 10 to 40 nm, and is used separately from the powder.
紫外線散乱剤としては、例えば、酸化チタン粒子、酸化亜鉛粒子などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。
Examples of ultraviolet scattering agents include titanium oxide particles and zinc oxide particles, but the present invention is not limited to these examples.
（Ｅ）他の成分
本発明においては、必要により、例えば、エチレンジアミン四酢酸ナトリウム塩などのキレート剤、紫外線吸収剤、酸化防止剤、着色剤、増粘剤、防腐剤、抗酸化剤、感触改良剤、保湿剤、香料、ｐＨ調整剤、収斂剤などの他の成分を油中水型乳化固形化粧料に適量で含有させてもよい。これらの成分は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。 (E) Other components In the present invention, if necessary, for example, a chelating agent such as ethylenediaminetetraacetic acid sodium salt, an ultraviolet absorber, an antioxidant, a coloring agent, a thickener, a preservative, an antioxidant, and a texture improver. The water-in-oil emulsified solid cosmetic composition may contain other ingredients such as agents, moisturizing agents, fragrances, pH adjusters and astringents in appropriate amounts. These components may be used alone or in combination of two or more.
本発明においては、必要により、例えば、エチレンジアミン四酢酸ナトリウム塩などのキレート剤、紫外線吸収剤、酸化防止剤、着色剤、増粘剤、防腐剤、抗酸化剤、感触改良剤、保湿剤、香料、ｐＨ調整剤、収斂剤などの他の成分を油中水型乳化固形化粧料に適量で含有させてもよい。これらの成分は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。 (E) Other components In the present invention, if necessary, for example, a chelating agent such as ethylenediaminetetraacetic acid sodium salt, an ultraviolet absorber, an antioxidant, a coloring agent, a thickener, a preservative, an antioxidant, and a texture improver. The water-in-oil emulsified solid cosmetic composition may contain other ingredients such as agents, moisturizing agents, fragrances, pH adjusters and astringents in appropriate amounts. These components may be used alone or in combination of two or more.
油中水型乳化固形化粧料には、必要により、水溶性有機溶媒を含有させてもよい。水溶性有機溶媒としては、例えば、エタノール、プロパノール、ブタノール、エチレングリコール、ジエチレングリコール、プロパンジオール、グリセリン、ジグリセリン、フェノキシエタノールなどが挙げられるが、本発明は、かかる例示のみに限定されるものではない。水溶性有機溶媒は、それぞれ単独で用いてもよく、２種類以上を併用してもよい。油中水型乳化固形化粧料における水溶性有機溶媒の含有率は、当該水溶性有機溶媒の種類によって異なるので一概には決定することができないが、通常、２０質量％以下であることが好ましい。また、水溶性有機溶媒を油中水型乳化固形化粧料に含有させることによる効果を十分に発現させる観点から、油中水型乳化固形化粧料における水溶性有機溶媒の含有率は、１質量％以上であることが好ましい。
The water-in-oil emulsified solid cosmetic may contain a water-soluble organic solvent, if necessary. Examples of water-soluble organic solvents include ethanol, propanol, butanol, ethylene glycol, diethylene glycol, propanediol, glycerin, diglycerin, phenoxyethanol, etc., but the present invention is not limited to these examples. The water-soluble organic solvents may be used alone or in combination of two or more. The content of the water-soluble organic solvent in the water-in-oil emulsified solid cosmetic composition varies depending on the type of the water-soluble organic solvent, and cannot be generally determined, but is usually preferably 20% by mass or less. In addition, from the viewpoint of sufficiently expressing the effect of including the water-soluble organic solvent in the water-in-oil emulsified solid cosmetic, the content of the water-soluble organic solvent in the water-in-oil emulsified solid cosmetic is 1% by mass. It is preferable that it is above.
油中水型乳化固形化粧料において、前記（Ａ）成分～（Ｄ）成分および必要に応じて含有される成分の残部は、水である。したがって、油中水型乳化固形化粧料に含有される前記（Ａ）成分～（Ｄ）成分および必要に応じて含有される成分の各成分の含有率が所定値となるように油中水型乳化固形化粧料に水が含有される。なお、水として精製水を用いることが好ましい。
In the water-in-oil type emulsified solid cosmetic, the remainder of the components (A) to (D) and optionally contained components is water. Therefore, the water-in-oil emulsified solid cosmetic composition contains water-in-oil emulsified solid cosmetics so that the content of each of the above-described components (A) to (D) and optionally contained components is at a predetermined value. Water is contained in the emulsified solid cosmetic. In addition, it is preferable to use purified water as water.
（Ｆ）油中水型乳化固形化粧料
油中水型乳化固形化粧料は、例えば、（Ａ）成分～（Ｄ）成分、水および必要に応じて含有される成分を混合し、得られた分散体を所定形状の容器に入れて成形することによって得ることができる。前記分散体を調製する際には、各成分が均一に分散するようにするために、必要により各成分を加熱しながら混合してもよい。 (F) Water-in-oil emulsified solid cosmetic A water-in-oil emulsified solid cosmetic is obtained, for example, by mixing components (A) to (D), water, and optional ingredients. It can be obtained by putting the dispersion into a container of a predetermined shape and molding it. When preparing the dispersion, each component may be mixed while being heated, if necessary, in order to uniformly disperse each component.
油中水型乳化固形化粧料は、例えば、（Ａ）成分～（Ｄ）成分、水および必要に応じて含有される成分を混合し、得られた分散体を所定形状の容器に入れて成形することによって得ることができる。前記分散体を調製する際には、各成分が均一に分散するようにするために、必要により各成分を加熱しながら混合してもよい。 (F) Water-in-oil emulsified solid cosmetic A water-in-oil emulsified solid cosmetic is obtained, for example, by mixing components (A) to (D), water, and optional ingredients. It can be obtained by putting the dispersion into a container of a predetermined shape and molding it. When preparing the dispersion, each component may be mixed while being heated, if necessary, in order to uniformly disperse each component.
油中水型乳化固形化粧料は、例えば、内面に所定形状を有する樹脂容器、金属容器などの容器に充填して使用することができる。
The water-in-oil emulsified solid cosmetic can be used, for example, by filling it in a container such as a resin container or a metal container having a predetermined shape on the inner surface.
油中水型乳化固形化粧料の形状は、当該油中水型乳化固形化粧料の用途などによって異なるので一概には決定することができないことから、当該用途に応じて適宜決定することが好ましい。前記油中水型乳化固形化粧料の形状としては、例えば、スティック状、プレート状、円柱状などが挙げられるが、本発明は、かかる例示のみに限定されるものではない。
The shape of the water-in-oil emulsified solid cosmetic differs depending on the use of the water-in-oil emulsified solid cosmetic, so it cannot be determined unconditionally. Examples of the shape of the water-in-oil emulsified solid cosmetic composition include a stick shape, a plate shape, and a cylindrical shape, but the present invention is not limited to these examples.
以上のようにして得られる油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れており、塗布面でサラサラ感を付与するという優れた性質を発現する。
The water-in-oil emulsified solid cosmetic obtained as described above does not easily cause perspiration of oil, does not easily crack (crack) on the surface even at low temperatures, and is solid at room temperature but externally. It liquefies when subjected to a stress, is excellent in usability, and exhibits excellent properties such as imparting a smooth feeling to the applied surface.
本発明の油中水型乳化固形化粧料がこのように優れた性質を発現する理由は定かではないが、当該油中水型乳化固形化粧料に（Ａ）ワックス成分、（Ｂ）揮発性シリコーン油および（Ｃ）シリコーン系界面活性剤が含有されているので、当該当該油中水型乳化固形化粧料にいわゆる「カードハウス構造」が形成され、また（Ａ）ワックス成分に含有されているセレシンが当該カードハウス構造の壁を形成し、（Ａ）ワックス成分に含有されているイソパラフィン系ワックスおよび脂肪酸エステル系ワックスがカードハウス構造を安定化させることに基づくものと推測される。
The reason why the water-in-oil emulsified solid cosmetic of the present invention exhibits such excellent properties is not clear, but the water-in-oil emulsified solid cosmetic contains (A) a wax component and (B) a volatile silicone. Since the oil and (C) the silicone surfactant are contained, the water-in-oil emulsified solid cosmetic composition forms a so-called "card house structure", and the ceresin contained in the wax component (A). form the walls of the card house structure, and the isoparaffin-based wax and fatty acid ester-based wax contained in the wax component (A) stabilize the card house structure.
本発明の油中水型乳化固形化粧料は、図１に示されるようにワックス成分１で構成される部屋の内部に揮発性シリコーン油２および水性成分３（シリコーン系界面活性剤および水）を含む成分（油中水型乳化成分）と粉体４とが閉じ込められているカードハウス構造を形成しており、当該油中水型乳化固形化粧料に外的応力が加わったとき、前記部屋が崩壊し、当該部屋から揮発性シリコーン油２および水性成分３を含む成分（油中水型乳化成分）と粉体４とが放出され、放出された成分がクリーム状になり、これを皮膚に塗布したとき、油中水型乳化固形化粧料に含まれている揮発性成分が揮発することから、当該油中水型乳化固形化粧料の伸びがよくなり、パウダリー感およびサラサラ感が皮膚に付与されるものと考えられる。
The water-in-oil emulsified solid cosmetic composition of the present invention contains a volatile silicone oil 2 and an aqueous component 3 (silicone surfactant and water) in a chamber composed of a wax component 1 as shown in FIG. A card house structure is formed in which the containing component (water-in-oil emulsified component) and the powder 4 are confined, and when an external stress is applied to the water-in-oil emulsified solid cosmetic, the chamber is It collapses, and a component (water-in-oil emulsified component) containing a volatile silicone oil 2 and an aqueous component 3 and powder 4 are released from the chamber, and the released component becomes a cream and is applied to the skin. When this is done, the volatile components contained in the water-in-oil emulsified solid cosmetic are volatilized, so that the water-in-oil emulsified solid cosmetic spreads well, imparting a powdery and dry feeling to the skin. It is considered to be
なお、図１は、本発明の油中水型乳化固形化粧料の構造を説明するために模式的に示した概略説明図であり、本発明は、当該概略説明図によって限定されるものではない。
FIG. 1 is a schematic explanatory diagram schematically showing the structure of the water-in-oil emulsified solid cosmetic of the present invention, and the present invention is not limited by the schematic explanatory diagram. .
以上説明したように、油中水型乳化固形化粧料は、油分の発汗が発生しがたく、低温下でも表面にひび割れ（亀裂）の発生がしがたく、室温下で固体であるが外的応力が加わったときに液化し、使用性に優れており、塗布面でサラサラ感を付与するという優れた性質を有することから、ファンデーション、コンシーラー、チーク、アイシャドウ、アイブロウ、頬紅、口紅などのメーキャップ化粧料、日焼け止め化粧料などに好適に使用することができる。
As described above, water-in-oil emulsified solid cosmetics are less prone to perspiration of oil, less prone to cracks (cracks) on the surface even at low temperatures, and are solid at room temperature but externally. It liquefies when stress is applied, has excellent usability, and has excellent properties such as giving a smooth feeling on the application surface, so it is used in makeup such as foundation, concealer, cheek, eye shadow, eyebrow, blush, and lipstick. It can be suitably used for cosmetics, sunscreen cosmetics and the like.
次に、本発明の油中水型乳化固形化粧料を実施例に基づいてさらに詳細に説明するが、本発明は、かかる実施例のみに限定されるものではない。
Next, the water-in-oil emulsified solid cosmetic of the present invention will be described in more detail based on Examples, but the present invention is not limited only to these Examples.
実施例１～２１および比較例１～１５
表１および表２に示す各成分（各成分の量の単位：質量％）を均一な組成となるよう混合し、得られた分散体を脱気した後、所定形状の油中水型乳化固形化粧料に対応する内面形状を有する成形型内に充填することにより、油中水型乳化固形化粧料を得た。 Examples 1-21 and Comparative Examples 1-15
Each component shown in Tables 1 and 2 (the unit of the amount of each component: mass%) was mixed so as to have a uniform composition, the resulting dispersion was degassed, and a water-in-oil emulsified solid having a predetermined shape was obtained. A water-in-oil emulsified solid cosmetic was obtained by filling a mold having an inner surface shape corresponding to the cosmetic.
表１および表２に示す各成分（各成分の量の単位：質量％）を均一な組成となるよう混合し、得られた分散体を脱気した後、所定形状の油中水型乳化固形化粧料に対応する内面形状を有する成形型内に充填することにより、油中水型乳化固形化粧料を得た。 Examples 1-21 and Comparative Examples 1-15
Each component shown in Tables 1 and 2 (the unit of the amount of each component: mass%) was mixed so as to have a uniform composition, the resulting dispersion was degassed, and a water-in-oil emulsified solid having a predetermined shape was obtained. A water-in-oil emulsified solid cosmetic was obtained by filling a mold having an inner surface shape corresponding to the cosmetic.
なお、粉体として平均一次粒子径が０．１～５０μｍの範囲内にあるものを使用し、光散乱剤として粒子径が０．００５～０．０５μｍの範囲内にあるものを使用した。各表に記載の成分の詳細は、以下のとおりである。
The powder used had an average primary particle size in the range of 0.1 to 50 μm, and the light scattering agent used had a particle size in the range of 0.005 to 0.05 μm. The details of the components listed in each table are as follows.
・短鎖ジメチコン：２５℃における粘度が１０ｃｓであるメチルポリシロキサン
・シリコーン処理酸化チタン：ジメチコンで表面処理が施された酸化チタン
・シリコーン処理酸化赤色酸化鉄：ジメチコンで表面処理が施された赤色酸化鉄
・シリコーン処理酸化黄色酸化鉄：ジメチコンで表面処理が施された黄色酸化鉄
・シリコーン処理酸化黒色酸化鉄：ジメチコンで表面処理が施された黒色酸化鉄
・シリコーン処理マイカ：ジメチコンで表面処理が施されたマイカ
・酸化チタン／マイカ／酸化スズ／トリエトキシカプリリルシラン：トリエトキシカプリリルシラン（シリコーン）で表面処理が施された粉体
・(ビニルジメチル／メチコンシルセスキオキサン)クロスポリマー：粉体と併用が可能な成分
・ＥＤＴＡ－２Ｎａ：エチレンジアミン四酢酸二ナトリウム塩 ・Short-chain dimethicone: methylpolysiloxane with a viscosity of 10 cs at 25° C. ・Silicone-treated titanium oxide: titanium oxide surface-treated with dimethicone ・Silicone-treated oxide red iron oxide: red oxide surface-treated with dimethicone Iron/silicone treated Yellow iron oxide: Yellow iron oxide surface treated with dimethicone/Silicone treated Black iron oxide: Black iron oxide surface treated with dimethicone/Silicone treated mica: Surface treated with dimethicone mica/titanium oxide/mica/tin oxide/triethoxycaprylylsilane: powder surface-treated with triethoxycaprylylsilane (silicone)/(vinyldimethyl/methicone silsesquioxane) crosspolymer: powder Ingredients that can be used in combination with the body ・EDTA-2Na: Ethylenediaminetetraacetic acid disodium salt
・シリコーン処理酸化チタン：ジメチコンで表面処理が施された酸化チタン
・シリコーン処理酸化赤色酸化鉄：ジメチコンで表面処理が施された赤色酸化鉄
・シリコーン処理酸化黄色酸化鉄：ジメチコンで表面処理が施された黄色酸化鉄
・シリコーン処理酸化黒色酸化鉄：ジメチコンで表面処理が施された黒色酸化鉄
・シリコーン処理マイカ：ジメチコンで表面処理が施されたマイカ
・酸化チタン／マイカ／酸化スズ／トリエトキシカプリリルシラン：トリエトキシカプリリルシラン（シリコーン）で表面処理が施された粉体
・(ビニルジメチル／メチコンシルセスキオキサン)クロスポリマー：粉体と併用が可能な成分
・ＥＤＴＡ－２Ｎａ：エチレンジアミン四酢酸二ナトリウム塩 ・Short-chain dimethicone: methylpolysiloxane with a viscosity of 10 cs at 25° C. ・Silicone-treated titanium oxide: titanium oxide surface-treated with dimethicone ・Silicone-treated oxide red iron oxide: red oxide surface-treated with dimethicone Iron/silicone treated Yellow iron oxide: Yellow iron oxide surface treated with dimethicone/Silicone treated Black iron oxide: Black iron oxide surface treated with dimethicone/Silicone treated mica: Surface treated with dimethicone mica/titanium oxide/mica/tin oxide/triethoxycaprylylsilane: powder surface-treated with triethoxycaprylylsilane (silicone)/(vinyldimethyl/methicone silsesquioxane) crosspolymer: powder Ingredients that can be used in combination with the body ・EDTA-2Na: Ethylenediaminetetraacetic acid disodium salt
実施例１で得られた油中水型乳化固形化粧料の透過型電子顕微鏡写真を図２に示す。図２において、白い線状の部分は、板状のワックスであり、黒い部分は、油分、水性成分および粉体を含む成分である。
A transmission electron micrograph of the water-in-oil emulsified solid cosmetic obtained in Example 1 is shown in FIG. In FIG. 2, the white linear portion is the plate-like wax, and the black portion is the component containing oil, aqueous component and powder.
図２に示された結果から、油中水型乳化固形化粧料には、ワックスで構成される部屋の内部に油分、水性成分および粉体４が閉じ込められているカードハウス構造が形成されていることがわかる。
From the results shown in FIG. 2, the water-in-oil emulsified solid cosmetic has a card house structure in which the oil, the aqueous component, and the powder 4 are confined inside a chamber composed of wax. I understand.
次に、前記で得られた油中水型乳化固形化粧料の性能として、油分の発汗、ひび割れ、固化の程度、使用性、チクソトロピー性およびパウダリー（粉体）感を以下の方法に基づいて評価した。その結果を表３および表４に示す。
Next, as the performance of the water-in-oil emulsified solid cosmetic obtained above, the degree of perspiration, cracking, solidification of oil, usability, thixotropy and powdery (powder) feeling were evaluated based on the following methods. bottom. The results are shown in Tables 3 and 4.
（１）油分の発汗
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、当該容器を５０℃の恒温槽に保管し、保管開始から１ヵ月経過後に恒温槽から取り出し、室温下で油中水型乳化固形化粧料の表面を目視で観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料の表面にオイルの滲みがなく、油滴が認められない（合格）。
〇：油中水型乳化固形化粧料の表面にオイルの滲みがやや認められるが、油滴が認められない（合格）。
×：油中水型乳化固形化粧料の表面にオイルの滲みおよび油滴が認められる（不合格）。 (1) Perspiration of oil A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), and the container is placed in a constant temperature bath of 50°C. After one month from the start of storage, it is taken out from the constant temperature bath, the surface of the water-in-oil emulsified solid cosmetic is visually observed at room temperature, and evaluated according to the following evaluation criteria.
〔Evaluation criteria〕
⊚: No oil bleeding and no oil droplets were observed on the surface of the water-in-oil emulsified solid cosmetic (pass).
◯: Some oil bleeding was observed on the surface of the water-in-oil emulsified solid cosmetic, but no oil droplets were observed (accepted).
x: Oil bleeding and oil droplets are observed on the surface of the water-in-oil emulsified solid cosmetic (failed).
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、当該容器を５０℃の恒温槽に保管し、保管開始から１ヵ月経過後に恒温槽から取り出し、室温下で油中水型乳化固形化粧料の表面を目視で観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料の表面にオイルの滲みがなく、油滴が認められない（合格）。
〇：油中水型乳化固形化粧料の表面にオイルの滲みがやや認められるが、油滴が認められない（合格）。
×：油中水型乳化固形化粧料の表面にオイルの滲みおよび油滴が認められる（不合格）。 (1) Perspiration of oil A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), and the container is placed in a constant temperature bath of 50°C. After one month from the start of storage, it is taken out from the constant temperature bath, the surface of the water-in-oil emulsified solid cosmetic is visually observed at room temperature, and evaluated according to the following evaluation criteria.
〔Evaluation criteria〕
⊚: No oil bleeding and no oil droplets were observed on the surface of the water-in-oil emulsified solid cosmetic (pass).
◯: Some oil bleeding was observed on the surface of the water-in-oil emulsified solid cosmetic, but no oil droplets were observed (accepted).
x: Oil bleeding and oil droplets are observed on the surface of the water-in-oil emulsified solid cosmetic (failed).
（２）ひび割れ
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、当該容器を０℃の恒温槽に保管し、保管開始から１ヵ月経過後に恒温槽から取り出し、室温下で油中水型乳化固形化粧料の表面を目視で観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料の表面にひび割れ（亀裂）が認められない（合格）。
×：油中水型乳化固形化粧料の表面にひび割れ（亀裂）が明らかに認められる（不合格）。 (2) Cracking A water-in-oil emulsified solid cosmetic liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), and the container is stored in a constant temperature bath at 0°C. Then, one month after the start of storage, it is taken out from the constant temperature bath, the surface of the water-in-oil emulsified solid cosmetic is visually observed at room temperature, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
A: No cracks (cracks) were observed on the surface of the water-in-oil emulsified solid cosmetic (accepted).
x: Cracks (cracks) are clearly observed on the surface of the water-in-oil emulsified solid cosmetic (failed).
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、当該容器を０℃の恒温槽に保管し、保管開始から１ヵ月経過後に恒温槽から取り出し、室温下で油中水型乳化固形化粧料の表面を目視で観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料の表面にひび割れ（亀裂）が認められない（合格）。
×：油中水型乳化固形化粧料の表面にひび割れ（亀裂）が明らかに認められる（不合格）。 (2) Cracking A water-in-oil emulsified solid cosmetic liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), and the container is stored in a constant temperature bath at 0°C. Then, one month after the start of storage, it is taken out from the constant temperature bath, the surface of the water-in-oil emulsified solid cosmetic is visually observed at room temperature, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
A: No cracks (cracks) were observed on the surface of the water-in-oil emulsified solid cosmetic (accepted).
x: Cracks (cracks) are clearly observed on the surface of the water-in-oil emulsified solid cosmetic (failed).
（３）固化の程度
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、油中水型乳化固形化粧料の表面を室温下で目視にて観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料が固化している（合格）。
〇：油中水型乳化固形化粧料がやや固化している（合格）。
×：油中水型乳化固形化粧料が固化しない（不合格）。 (3) Degree of solidification A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then placed in oil. The surface of the water-type emulsified solid cosmetic is visually observed at room temperature and evaluated according to the following evaluation criteria.
〔Evaluation criteria〕
A: The water-in-oil emulsified solid cosmetic is solidified (accepted).
◯: The water-in-oil emulsified solid cosmetic is slightly solidified (accepted).
x: The water-in-oil emulsified solid cosmetic does not solidify (failed).
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、油中水型乳化固形化粧料の表面を室温下で目視にて観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：油中水型乳化固形化粧料が固化している（合格）。
〇：油中水型乳化固形化粧料がやや固化している（合格）。
×：油中水型乳化固形化粧料が固化しない（不合格）。 (3) Degree of solidification A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then placed in oil. The surface of the water-type emulsified solid cosmetic is visually observed at room temperature and evaluated according to the following evaluation criteria.
〔Evaluation criteria〕
A: The water-in-oil emulsified solid cosmetic is solidified (accepted).
◯: The water-in-oil emulsified solid cosmetic is slightly solidified (accepted).
x: The water-in-oil emulsified solid cosmetic does not solidify (failed).
（４）使用性
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、当該化粧料を室温下でパフに取るときの取れやすさを観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料をパフに容易に取ることができる（合格）。
〇：化粧料をパフに容易ではないが、パフに取ることができる（合格）。
×：化粧料をパフに容易に取ることが困難である（不合格）。 (4) Usability A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is applied. is observed for ease of removal when taken with a puff at room temperature, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The cosmetic can be easily taken with the puff (accepted).
◯: The cosmetic was not easily puffed, but could be puffed (passed).
x: It is difficult to easily take the cosmetic with the puff (failed).
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、当該化粧料を室温下でパフに取るときの取れやすさを観察し、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料をパフに容易に取ることができる（合格）。
〇：化粧料をパフに容易ではないが、パフに取ることができる（合格）。
×：化粧料をパフに容易に取ることが困難である（不合格）。 (4) Usability A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is applied. is observed for ease of removal when taken with a puff at room temperature, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The cosmetic can be easily taken with the puff (accepted).
◯: The cosmetic was not easily puffed, but could be puffed (passed).
x: It is difficult to easily take the cosmetic with the puff (failed).
（５）チクソトロピー性
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、当該化粧料を室温下でパフに取るときに当該化粧料が固体であり、当該化粧料に力を加えたときに液状に変化するかどうかを調べ、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料をパフに取るときに当該化粧料が固体であり、当該化粧料に力を加えたときに液状に変化する（合格）。
×：化粧料をパフに取るときに当該化粧料が固体ではない（不合格）。 (5) Thixotropic property A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is The cosmetic is solid when taken with a puff at room temperature, and it is examined whether it changes to a liquid state when force is applied to the cosmetic, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The cosmetic is solid when taken with a puff, and changes to a liquid state when a force is applied to the cosmetic (acceptance).
x: The cosmetic is not solid when taken with a puff (failed).
約８０℃に加温することによって液状にした油中水型乳化固形化粧料を室温（約２５℃）下でファンデーション用容器に充填し、１時間放置した後、当該化粧料を室温下でパフに取るときに当該化粧料が固体であり、当該化粧料に力を加えたときに液状に変化するかどうかを調べ、以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料をパフに取るときに当該化粧料が固体であり、当該化粧料に力を加えたときに液状に変化する（合格）。
×：化粧料をパフに取るときに当該化粧料が固体ではない（不合格）。 (5) Thixotropic property A water-in-oil emulsified solid cosmetic that has been liquefied by heating to about 80°C is filled in a foundation container at room temperature (about 25°C), left to stand for 1 hour, and then the cosmetic is The cosmetic is solid when taken with a puff at room temperature, and it is examined whether it changes to a liquid state when force is applied to the cosmetic, and evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The cosmetic is solid when taken with a puff, and changes to a liquid state when a force is applied to the cosmetic (acceptance).
x: The cosmetic is not solid when taken with a puff (failed).
（６）パウダリー感
油中水型乳化固形化粧料を肌に塗布した後、肌を手指で触ったときのパウダリー感を以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料の塗布面にべたつきが感じられず、サラサラ感が感じられる（合格）。
×：化粧料の塗布面にべたつきが感じられるか、またはサラサラ感が感じられない（不合格）。 (6) Powdery feeling After applying the water-in-oil emulsified solid cosmetic to the skin, the powdery feeling when the skin is touched with fingers is evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The surface to which the cosmetic was applied did not feel sticky, and the skin felt dry (accepted).
x: Stickiness is felt on the surface to which the cosmetic is applied, or dry feeling is not felt (failed).
油中水型乳化固形化粧料を肌に塗布した後、肌を手指で触ったときのパウダリー感を以下の評価基準に基づいて評価する。
〔評価基準〕
◎：化粧料の塗布面にべたつきが感じられず、サラサラ感が感じられる（合格）。
×：化粧料の塗布面にべたつきが感じられるか、またはサラサラ感が感じられない（不合格）。 (6) Powdery feeling After applying the water-in-oil emulsified solid cosmetic to the skin, the powdery feeling when the skin is touched with fingers is evaluated based on the following evaluation criteria.
〔Evaluation criteria〕
⊚: The surface to which the cosmetic was applied did not feel sticky, and the skin felt dry (accepted).
x: Stickiness is felt on the surface to which the cosmetic is applied, or dry feeling is not felt (failed).
なお、表中、「×」の評価が１つでも存在している油中水型乳化固形化粧料は、不合格である。
In addition, in the table, the water-in-oil emulsified solid cosmetic with at least one evaluation of "x" is disqualified.
表３に示された結果から、各実施例で得られた油中水型乳化固形化粧料は、いずれも、室温下で固化しており、油中水型乳化固形化粧料の表面にオイルの滲みや油滴の発生がなく、低温で保存しても油中水型乳化固形化粧料の表面にひび割れ（亀裂）の発生がなく、化粧料をパフに取るときに当該化粧料が固体であり、当該化粧料に力を加えたときに液状に変化し、化粧料をパフに容易に取ることができるとともに、化粧料の塗布面にべたつきが感じられず、サラサラ感が感じられることがわかる。
From the results shown in Table 3, all of the water-in-oil emulsified solid cosmetics obtained in each example were solidified at room temperature, and oil was deposited on the surface of the water-in-oil emulsified solid cosmetics. There is no bleeding or oil droplets, there is no cracking (cracking) on the surface of the water-in-oil emulsified solid cosmetic even when stored at a low temperature, and the cosmetic is solid when taken with a puff. , when force is applied to the cosmetic, the cosmetic changes to a liquid state, the cosmetic can be easily taken with a puff, and the coated surface of the cosmetic does not feel sticky and gives a smooth feeling.
１ ワックス成分
２ 揮発性シリコーン油
３ 水性成分
４ 粉体 1 wax component 2 volatile silicone oil 3aqueous component 4 powder
２ 揮発性シリコーン油
３ 水性成分
４ 粉体 1 wax component 2 volatile silicone oil 3
Claims (1)
- （Ａ）ワックス成分、（Ｂ）揮発性シリコーン油、（Ｃ）シリコーン系界面活性剤および（Ｄ）粉体を含有してなる油中水型乳化固形化粧料であって、前記（Ａ）ワックス成分がセレシン、イソパラフィン系ワックスおよび脂肪酸エステル系ワックスを含有する油中水型乳化固形化粧料。 A water-in-oil emulsified solid cosmetic comprising (A) a wax component, (B) a volatile silicone oil, (C) a silicone surfactant and (D) powder, wherein the (A) wax A water-in-oil emulsified solid cosmetic containing ceresin, isoparaffin wax and fatty acid ester wax as ingredients.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-214288 | 2021-12-28 | ||
| JP2021214288 | 2021-12-28 |
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| WO2023127275A1 true WO2023127275A1 (en) | 2023-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2022/040297 WO2023127275A1 (en) | 2021-12-28 | 2022-10-28 | Water-in-oil emulsified solid cosmetic material |
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| TW (1) | TW202327547A (en) |
| WO (1) | WO2023127275A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115099A1 (en) * | 2012-01-30 | 2013-08-08 | 株式会社 資生堂 | Makeup cosmetic |
| WO2020067420A1 (en) * | 2018-09-28 | 2020-04-02 | 株式会社 資生堂 | Water-in-oil emulsified solid cosmetic |
| JP2021123596A (en) * | 2020-02-06 | 2021-08-30 | 株式会社コーセー | Oil-in-water type emulsified solid cosmetic |
-
2022
- 2022-10-28 WO PCT/JP2022/040297 patent/WO2023127275A1/en active Application Filing
- 2022-11-01 TW TW111141558A patent/TW202327547A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115099A1 (en) * | 2012-01-30 | 2013-08-08 | 株式会社 資生堂 | Makeup cosmetic |
| WO2020067420A1 (en) * | 2018-09-28 | 2020-04-02 | 株式会社 資生堂 | Water-in-oil emulsified solid cosmetic |
| JP2021123596A (en) * | 2020-02-06 | 2021-08-30 | 株式会社コーセー | Oil-in-water type emulsified solid cosmetic |
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