Solid cosmetics

Abstract

A solid cosmetic comprises 10-80 mass% of a volatile oil (A) (excluding cyclic siloxanes), 1-6 mass% of an organically modified clay mineral (B), and 0.1-4 mass% of an aqueous component (C), wherein the water in the aqueous component (C) is not more than 2 mass% and the rheometer hardness of the solid cosmetic is 30-200.

Description

Technical Field

[0001] The present invention relates to solid cosmetics.

Background Art

[0002] Solid cosmetics such as eyeliners are blended with volatile cyclic silicone compounds in order to provide a smooth spread and a fitting application feel. On the other hand, there are concerns about the impact of cyclic silicone compounds on the environment, and their use has been regulated in recent years (for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In solid cosmetics that do not use cyclic silicone compounds, a smooth spread and a fitting application feel cannot be obtained, and the filling property is deteriorated, making production difficult.

[0005] An object of the present invention is to provide a solid cosmetic that can obtain a good application feel and has a good filling property without using a cyclic silicone compound.

Means for Solving the Problems

[0006] The solid cosmetic according to one aspect of the present invention contains 10% by mass or more and 80% by mass or less of a volatile oil component (excluding cyclic siloxane), 1% by mass or more and 6% by mass or less of an organically modified clay mineral, Aqueous components containing water and polyhydric alcohols: 0.1% by mass or more 4% by mass or less, and The water content in the aqueous component is 0.5% by mass or more and 2% by mass or less relative to the total amount of the solid cosmetic composition. has a rheometer hardness of 30 to 200. [Effects of the Invention]

[0007] According to one aspect of the present invention, a solid cosmetic composition can be provided that has a good application feel and good filling properties without using a cyclic silicone compound. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described in detail below. The solid cosmetic composition according to this embodiment contains (A) a volatile oil (excluding cyclic siloxanes), (B) an organically modified clay mineral, and (C) an aqueous component. In this specification, a solid cosmetic composition refers to a solidified cosmetic composition including a base material.

[0009] Volatile oils, excluding cyclic siloxanes, are oil components that evaporate at room temperature. Here, cyclic siloxanes are siloxanes with a cyclic structure containing a dimethylsiloxane unit in which a silicon atom with two methyl groups is bonded to an oxygen atom. While such cyclic siloxanes have traditionally been used as ingredients in cosmetics, concerns about their environmental impact have been raised in recent years.

[0010] Examples of volatile oils other than cyclic siloxanes include hydrocarbon oils such as isododecane, and chain-like silicone oils such as dimethylpolysiloxane (dimethicone) and methylphenylpolysiloxane. These volatile oils may be used individually or in mixtures of two or more.

[0011] The amount of volatile oils other than cyclic siloxanes blended into the solid cosmetic composition is 10% by mass or more and 80% by mass or less, preferably 20% by mass or more and 70% by mass or less, and more preferably 30% by mass or more and 60% by mass or less. If the amount of volatile oils blended into the solid cosmetic composition is less than 10% by mass, the solid cosmetic composition may not spread smoothly and provide a comfortable application feel, and if it exceeds 80% by mass, the viscosity of the solid cosmetic composition may decrease during manufacturing, and the cosmetic composition may not solidify.

[0012] Organically modified clay minerals are clay minerals that have acquired the properties of organic compounds through interaction with organic compounds. Examples of organically modified clay minerals include disteardimonium hectorite, dimethylalkylammonium hectorite, benzyldimethylstearylammonium hectorite, and magnesium aluminum silicate treated with distearyldimethylammonium chloride. These organically modified clay minerals may be used individually or in mixtures of two or more.

[0013] The amount of organically modified clay minerals included in the solid cosmetic composition is 1% by mass or more and 6% by mass or less, preferably 2% by mass or more and 5% by mass or less, and more preferably 3% by mass or more and 4% by mass or less. If the amount of organically modified clay minerals included is less than 1% by mass, the solid cosmetic composition may not spread smoothly and provide a comfortable, fitted feel when applied. If it exceeds 6% by mass, the viscosity of the solid cosmetic composition may increase during manufacturing, leading to a decrease in filling ability.

[0014] Aqueous components are components that dissolve easily in water. Examples of aqueous components include water, lower alcohols such as ethanol, and polyhydric alcohols such as glycerin. These aqueous components may be used individually or in mixtures of two or more.

[0015] The aqueous component content is 0.1% by mass or more and 4% by mass or less in the solid cosmetic composition, preferably 0.5% by mass or more and 3% by mass or less, and more preferably 1% by mass or more and 2% by mass or less. If the amount of aqueous component is less than 0.1% by mass, the solid cosmetic composition may not spread smoothly and provide a comfortable application feel, and if it exceeds 4% by mass, the viscosity may increase during the manufacturing of the solid cosmetic composition, resulting in reduced filling properties.

[0016] Furthermore, the water content in the aqueous component (water contained in the aqueous component) is 2% by mass or less, preferably 1.5% by mass or less, and more preferably 1% by mass or less. If the water content in the aqueous component (C) exceeds 2% by mass, it may not be possible to uniformly disperse it during manufacturing, and a stable solid cosmetic composition may not be obtainable. The lower limit for the water content contained in the aqueous component is 0% by mass, but in this case, the aqueous component may contain unavoidable moisture.

[0017] In this embodiment, the solid cosmetic composition is preferably a gel-like mixture of an organically modified clay mineral (B) and an aqueous component (C). Here, the mixture refers to a state in which the aqueous component is impregnated into the organically modified clay mineral. Gel-like state refers to a state in which a colloidal solution (sol) loses its fluidity and becomes jelly-like.

[0018] In this embodiment, the solid cosmetic composition preferably contains a polyhydric alcohol as the aqueous component (C), and more preferably contains water and a polyhydric alcohol as the aqueous component.

[0019] Examples of polyhydric alcohols include diols such as 1,3-propanediol, propylene glycol, 1,3-butylene glycol, and 1,2-hexanediol, and triols such as glycerin. These polyhydric alcohols may be used individually or in mixtures of two or more. Among these, diols are preferred, and 1,3-butylene glycol is more preferred.

[0020] The mass ratio of polyhydric alcohol to aqueous component (C) is not particularly limited. In the solid cosmetic composition of this embodiment, the mass ratio of polyhydric alcohol to aqueous component (C) is 0.1 or more and 1 or less, preferably 0.2 or more and 1 or less, and more preferably 0.25 or more and 1 or less.

[0021] The solid cosmetic according to this embodiment preferably further contains hydrophobic silica. Hydrophobic silica refers to silica whose surface has been hydrophobized. Examples of hydrophobic silica include dimethylsilylated silica, trimethylsilylated silica, and the like. These hydrophobic silicas may be used alone or in combination of two or more.

[0022] The blending amount of hydrophobic silica is not particularly limited, but in the solid cosmetic, it is preferably 0.1% by mass or more and 1% by mass or less, more preferably 0.2% by mass or more and 0.8% by mass or less, and still more preferably 0.3% by mass or more and 0.5% by mass or less. By setting the blending amount of hydrophobic silica to 0.1% by mass or more and 1% by mass or less, the stability of the obtained solid cosmetic can be improved.

[0023] The solid cosmetic according to this embodiment has a rheometer hardness of 30 to 200. Here, the rheometer hardness is the average value obtained by measuring two points by inserting a disk needle with a diameter of 3 mm into a bar-shaped solid cosmetic maintained at a temperature of 25°C at a speed of 2 cm / min to a depth of 1 mm using a rheometer (manufactured by Rheotech Co., Ltd., FUDOU Rheometer).

[0024] The solid cosmetic of this embodiment may further contain at least any one of a solid oil component, a liquid oil component (excluding volatile oil components), and a film-forming agent.

[0025] Solid oils are oil components that are solid at room temperature. Examples of solid oils include solid fats and oils such as cocoa butter, coconut oil, hydrogenated coconut oil, palm oil, and hydrogenated castor oil; linear hydrocarbons such as polyethylene and paraffin wax; branched saturated hydrocarbons such as microcrystalline wax; hydrocarbons such as ceresin wax, Japanese wax, montan wax, and Fischertrop's wax; waxes such as beeswax, carnauba wax, candelilla wax, rice bran wax, jojoba oil, rice bran wax, montan wax, kapok wax, bayberry wax, shellac wax, sugarcane wax, hexyl lauryl phosphate, and POE cholesterol ether; higher fatty acids such as myristic acid, palmitic acid, stearic acid, and behenic acid; and higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, and cetostearyl alcohol. These solid oils may be used individually or in mixtures of two or more types.

[0026] The amount of solid oil blended is not particularly limited, but is preferably 0.5% by mass or more and 20% by mass or less in the solid cosmetic composition, more preferably 5% by mass or more and 15% by mass or less, and even more preferably 10% by mass or more and 15% by mass or less. When the amount of solid oil blended is 0.5% by mass or more, a comfortable application feel is easily obtained, and when it is 20% by mass or less, the viscosity does not increase easily during the manufacture of the solid cosmetic composition, and the decrease in filling ability is suppressed.

[0027] Liquid oils, excluding the volatile oils mentioned above, are oil components that are liquid at room temperature. Examples of liquid oils include ester oils such as cetyl octanoate, hexyl laurate, isopropyl myristate, octyl palmitate, isocetyl stearate, isopropyl isostearate, octyl isopalmitate, isodecyl isostearate, 2-ethylhexyl succinate, and diethyl sebacate, as well as liquid paraffin, squalane, squalene, and paraffin. These liquid oils may be used individually or in mixtures of two or more.

[0028] The amount of liquid oil incorporated is not particularly limited, but is preferably 20% by mass or less, more preferably 15% by mass or less, and even more preferably 10% by mass or less in the solid cosmetic composition. When the amount of liquid oil incorporated is 20% by mass or less, the deterioration of the cosmetic's longevity is suppressed and the product's functionality can be maintained.

[0029] A film-forming agent is a component that forms a film when applied to the skin. Examples of film-forming agents include trimethylsiloxysilicate, tri(trimethylsiloxy)silylpropylcarbamate pullulan, dimethylaminomethacrylate quaternary salt, vinylpyrrolidone / methacrylate-N,N-dimethyl-ethyl anti-ioethyl copolymer, silicone / polyether polyurethane resin, (methacryloyloxyethyl carboxybetaine / methacrylate alkyl) copolymer, dextrin, (vinylpyrrolidone / VA) copolymer, alkyl acrylate copolymer ammonium, polyvinyl alcohol, ethyl polyacrylate, (alkyl acrylate / octylacrylamide) copolymer, (acrylates / propyl trimethicone methacrylate) copolymer, polyvinyl acetate, (alkyl acrylate / dimethicone) copolymer, polyether graft acrylic silicone, and fluoro-modified silicone resin. These film-forming agents may be used individually or in combination of two or more.

[0030] The amount of film-forming agent is not particularly limited, but is preferably 1% by mass or more and 20% by mass or less in the solid cosmetic composition, more preferably 3% by mass or more and 15% by mass or less, and even more preferably 5% by mass or more and 13% by mass or less. When the amount of film-forming agent is 1% by mass or more, the stability of the solid cosmetic composition after application is obtained, and when it is 20% by mass or less, the flexibility of the applied film is maintained and the deterioration of the cosmetic function is suppressed.

[0031] The solid cosmetic composition of this embodiment may contain other components besides the above-mentioned components, such as colorants, stabilizers, surfactants (excluding dispersants), antioxidants, preservatives, and fillers, to the extent that it does not impair the effects of the present invention.

[0032] Colorants are components that color solid cosmetics. Examples of colorants include inorganic white pigments such as red iron oxide, yellow iron oxide, black iron oxide, and zinc oxide; inorganic red pigments such as iron titanate; inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine and Prussian blue; metal powder pigments such as aluminum powder and copper powder; organic pigments such as zirconium, barium, or aluminum lake; and natural pigments such as chlorophyll and β-carotene. These colorants may be used individually or in mixtures of two or more.

[0033] The amount of colorant added is not particularly limited, but is preferably 0.1% by mass or more and 40% by mass or less in the solid cosmetic composition, more preferably 0.3% by mass or more and 35% by mass or less, and even more preferably 0.5% by mass or more and 30% by mass or less.

[0034] Stabilizers are components that provide viscosity or adhesiveness to solid cosmetics to maintain their shape. Examples of stabilizers include dextrin fatty acid esters, sucrose fatty acid esters, cellulose derivatives, aluminum isostearate, dibutylethylhexanoyl glutamide, dibutyllauroyl glutamide, (bis-dialkyl(C14-18)amide (ethylenediamine / hydrogenated dimer dilinoleic acid) copolymer, (VP / eicosene) copolymer, etc. These stabilizers may be used individually or in combination of two or more.

[0035] Examples of activators include hydrogenated lecithin, sorbitan laurate, sorbitan palmitate, sorbitan oleate, sorbitan stearate, sorbitan isostearate, sorbitan sesquioleate, sorbitan trioleate, sorbitan tristearate, and sorbitan sesquiisostearate.

[0036] The amount of activator is not particularly limited, but is preferably 0.01% by mass or more and 20% by mass or less in the solid cosmetic composition, more preferably 0.1% by mass or more and 10% by mass or less, and even more preferably 0.5% by mass or more and 5% by mass or less.

[0037] Examples of antioxidants include ascorbic acid, α-tocopherol, dibutylhydroxytoluene, and butylhydroxyanisole.

[0038] Examples of preservatives include parahydroxybenzoic acid esters, phenoxyethanol, octoxyglycerin, benzoic acid, salicylic acid, carbolic acid, sorbic acid, parachlormethacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, and trichlorocarbanilide.

[0039] The formulation of the solid cosmetic composition according to this embodiment is not particularly limited and can be applied using, for example, an application tool such as a tip, sponge, puff, or brush. Among these application tools, a brush is preferred.

[0040] The container in which the solid cosmetic composition according to this embodiment is filled is not particularly limited, and can be used, for example, as a cosmetic container such as a jar or a pencil-type container. Among these cosmetic containers, a jar is preferred. Here, a jar refers to a bottle-type container with a wide opening.

[0041] The uses of the solid cosmetic composition according to this embodiment are not particularly limited and can be used, for example, as a foundation, lipstick, eyeshadow, blush, eyeliner, mascara, etc. Among these uses, the use as an eyeliner is preferred.

[0042] The method for producing the solid cosmetic according to this embodiment is not particularly limited. For example, the above-mentioned (A) volatile oil and (B) organically modified clay mineral are placed in a mixing container such as a disper and mixed while heating. The above-mentioned aqueous component is added to this and stirred while heating to produce a bulk. The heating temperature is not particularly limited, but is 50°C to 95°C, preferably 55°C to 90°C, and more preferably 60°C to 85°C.

[0043] When adding solid oils, liquid oils (excluding volatile oils), film-forming agents, and other components (colorants, stabilizers, surfactants, antioxidants, preservatives, fillers, etc.), add them simultaneously with or before / after the addition of the aqueous components. Pour the resulting bulk into cosmetic containers such as jars. At this time, fill the cosmetic containers while filtering the bulk.

[0044] The bulk material filled into cosmetic containers is heated and dried. The drying temperature should be less than 50°C. The method of heating (drying) the bulk material is arbitrary; for example, cosmetic containers such as jars filled with the bulk material can be dried in a constant temperature bath equipped with a degassing device.

[0045] Furthermore, the heating time for the bulk is arbitrary, for example, from 3 minutes to 3 hours. Then, the bulk filled into cosmetic containers is cooled as needed to obtain a solid (solid cosmetic). The cooling temperature and cooling time are arbitrary, for example, about 5 minutes at room temperature.

[0046] In the solid cosmetic composition of this embodiment, as described above, volatile oils other than cyclic siloxanes are used as the volatile oil component, and since cyclic siloxanes are not included, the environmental impact can be reduced.

[0047] In the solid cosmetic composition of this embodiment, organic modified clay minerals and aqueous components are blended with volatile oils excluding cyclic siloxanes, resulting in a smooth application and a comfortable, fitted feel. Therefore, the solid cosmetic composition of this embodiment provides a smooth application and a comfortable, fitted feel even without using cyclic siloxanes (hereinafter referred to as having excellent usability or excellent usability).

[0048] Furthermore, in the solid cosmetic composition of this embodiment, 10% to 80% by mass of volatile oils excluding cyclic siloxanes are blended with 1% to 6% by mass of organically modified clay minerals and 0.1% to 4% by mass of aqueous components, with water content in the aqueous component being 2% by mass or less, and the rheometer hardness being set to 30 to 200, thereby suppressing an increase in viscosity during the manufacture of the solid cosmetic composition. Therefore, the solid cosmetic composition of this embodiment has good filling properties even without using cyclic siloxanes.

[0049] Furthermore, the solid cosmetic composition of this embodiment has a smooth spread and provides a comfortable, fitted application. Therefore, the solid cosmetic composition of this embodiment has good filling properties and excellent usability. Moreover, the solid cosmetic composition of this embodiment can be uniformly dispersed during manufacturing, allowing for the stable production of the solid cosmetic composition.

[0050] In the solid cosmetic composition of this embodiment, as described above, the organic modified clay mineral and aqueous component are blended as a gel-like mixture, which further suppresses the increase in viscosity during manufacturing, resulting in a smoother spread and a more comfortable application feel.

[0051] In this embodiment, as described above, the inclusion of a polyhydric alcohol in the aqueous component stabilizes the gel-like mixture of organically modified clay minerals and the aqueous component. Therefore, the solid cosmetic composition of this embodiment consistently provides excellent usability and good filling properties.

[0052] In this embodiment, as described above, by adjusting the mass ratio of polyhydric alcohol to aqueous component to 0.1 or more and 1 or less, the gel-like mixture of organically modified clay mineral and aqueous component can be further stabilized. Therefore, the solid cosmetic composition of this embodiment can be obtained more stably with excellent usability and good filling properties.

[0053] In this embodiment, as described above, the inclusion of hydrophobic silica further stabilizes the gel-like mixture of organically modified clay minerals and aqueous components. Therefore, the solid cosmetic composition of this embodiment provides even more stable excellent usability and good filling properties.

[0054] In this embodiment, as described above, by including one or more components such as a film-forming agent, a solid oil, and a liquid oil other than the volatile oil described above as other components, it is possible to add functions derived from each of these components and adjust the properties of the solid cosmetic composition.

[0055] In this embodiment, as described above, applying the solid cosmetic with a brush results in a smoother application and a more comfortable, fitted feel. Therefore, the solid cosmetic of this embodiment offers excellent usability.

[0056] In this embodiment, as described above, filling a jar container with solid cosmetic material can give the solid cosmetic material a premium feel. Furthermore, the solid cosmetic material of this embodiment has suppressed viscosity increase during manufacturing and excellent fillability, making it easy to fill into such jar containers.

[0057] As described above, the solid cosmetic composition of this embodiment is suitable for use as an eyeliner because it has excellent usability, providing a smooth application and a comfortable feel when applied. [Examples]

[0058] The present invention will be further described below with reference to examples. In the following, "parts" and "%" refer to mass unless otherwise specified. Furthermore, various tests and evaluations will be conducted according to the methods described below.

[0059] <Test specimen> (A) Volatile oils excluding cyclic siloxanes and (B) organically modified clay minerals are added to a homomixer (Primix, Lab Solution) and the base is kneaded. Next, (C) aqueous components are added to the homomixer and stirred to prepare the bulk. The bulk is filled into a jar container and cooled at room temperature for about 10 minutes. The resulting solid (solid cosmetic) is used as the test specimen.

[0060] <Rheometer hardness (filling properties)> Using a rheometer (FUDOU rheometer, manufactured by Rheotec), a 3mm diameter disc needle was inserted 1mm into the test specimen at a needle insertion speed of 20mm / min. The peak was measured, and the read peak was defined as the rheometer hardness. For each test specimen, the packing performance was evaluated from the rheometer hardness of 2 tests (average of 2 measurements).

[0061] Storage stability was evaluated according to the following criteria. A rating of A indicated good filling properties for the test specimen (solid cosmetic). If the rating was B, a rheometer hardness of less than 30 indicated poor stability due to low solidification strength, and a rheometer hardness exceeding 200 indicated poor filling properties due to poor adhesion and release of the cosmetic during use. A: The rheometer hardness is 30-200. B: Rheometer hardness less than 30 or greater than 200

[0062] <Melting viscosity> The melt viscosity (mPa·s) was measured at 80°C with varying shear rates using a rheometer (FUDOU rheometer, manufactured by Rheotec). A melt viscosity of less than 4000 mPa·s was considered to indicate good packing performance of the test specimen, while a melt viscosity of 4000 mPa·s or more was considered to indicate poor packing performance.

[0063] <Usability> A panel of makeup experts (N=5) evaluated the usability of the cosmetic product by applying the test sample to a brush and drawing a line (applying) it along the edge of their eye. The usability was evaluated according to the following criteria, with A indicating good performance and B and C indicating poor performance. A: They responded that it spreads smoothly and fits well. B: Responded that the product was smooth to apply but lacked a good fit, or that it had a good fit but poor stretchability. C: They responded that it was not very stretchy and didn't fit well.

[0064] Examples and comparative examples will be described below.

[0065] [Example 1] Test specimens were prepared and evaluated using a mixture of 2.4 parts polyethylene, 9 parts paraffin, 1.6 parts microcrystalline wax, 11.87 parts isododecane, 26.96 parts dimethicone, 10.2 parts trimethylsiloxysilicate, 0.03 parts pullulan tri(trimethylsiloxy)silylpropylcarbamate, 3 parts sorbitan sesquiisostearate, 3.5 parts disteardimonium hectorite, 0.3 parts dimethylsilylated silica, 29.4 parts iron oxide, 1 part aqueous component (0.5 parts water, 0.5 parts 1,3-butylene glycol), and 0.74 parts other (0.24 parts antioxidant, 0.5 parts preservative). The composition and evaluation are shown in Table 1.

[0066] [Example 2] The test specimens were prepared and evaluated in the same manner as in Example 1, except that the amount of dimethicone was 25.96 parts and the amount of aqueous components was 2 parts (1 part water, 1 part 1,3-butylene glycol). The composition and evaluation are shown in Table 1.

[0067] [Example 3] The test specimens were prepared and evaluated in the same manner as in Example 1, except that the amount of dimethicone was 27.46 parts and the amount of disteardimonium hectorite was 3 parts. The composition and evaluation are shown in Table 1.

[0068] [Example 4] The test specimens were prepared and evaluated in the same manner as in Example 4, except that the amount of dimethicone was 26.46 parts and the amount of aqueous components was 2 parts (1 part water, 1 part 1,3-butylene glycol). The composition and evaluation are shown in Table 1.

[0069] [Example 5] A test specimen was prepared and evaluated in the same manner as in Example 1, except that polyethylene was omitted, the amount of paraffin was 9.9 parts, the amount of microcrystalline wax was 1.1 parts, the amount of dimethicone was 27.96 parts, and the amount of aqueous component was 2 parts (1 part water, 1 part 1,3-butylene glycol). The composition and evaluation are shown in Table 1.

[0070] [Example 6] The test specimens were prepared and evaluated in the same manner as in Example 6, except that the amount of dimethicone was 29.46 parts, the amount of disteardimonium hectorite was 3 parts, and the amount of aqueous components was 1 part (0.5 parts water, 0.5 parts 1,3-butylene glycol). The composition and evaluation are shown in Table 1.

[0071] [Example 7] A test specimen was prepared and evaluated in the same manner as in Example 5, except that 0.8 parts of polyethylene were added, 1.3 parts of microcrystalline wax were added, and 26.96 parts of dimethicone were added. The composition and evaluation are shown in Table 1.

[0072] [Example 8] The test specimens were prepared and evaluated in the same manner as in Example 7, except that the amount of dimethicone was 28.46 parts, the amount of disteardimonium hectorite was 3 parts, and the amount of aqueous components was 1 part (0.5 parts water, 0.5 parts 1,3-butylene glycol). The composition and evaluation are shown in Table 1.

[0073] [Example 9] A test specimen was prepared and evaluated in the same manner as in Example 7, except that the amount of dimethicone was 29.46 parts, the amount of disteardimonium hectorite was 1 part, and 1 part of 1,2-hexanediol was added instead of 1 part of 1,3-butylene glycol in the aqueous component. The composition and evaluation are shown in Table 1.

[0074] [Example 10] The test specimens were prepared and evaluated in the same manner as in Example 9, except that the amount of dimethicone was 28.46 parts and the amount of disteardimonium hectorite was 2 parts. The composition and evaluation are shown in Table 2.

[0075] [Example 11] A test specimen was prepared and evaluated in the same manner as in Example 10, except that the amount of dimethicone was 26.76 parts, the amount of disteardimonium hectorite was 5 parts, the amount of aqueous component was 1 part (0.5 parts water, 0.5 parts 1,2-hexanediol), and dimethylsilylated silica was not included. The composition and evaluation are shown in Table 2.

[0076] [Example 12] The test specimens were prepared and evaluated in the same manner as in Example 7, except that the amount of dimethicone was 24.96 parts and the amount of aqueous components was 4 parts (2 parts water, 2 parts 1,3-butylene glycol). The composition and evaluation are shown in Table 2.

[0077] [Example 13] Except for using 26.76 parts of dimethicone and 0.5 parts of dimethylsilylated silica, test specimens were prepared and evaluated in the same manner as in Example 7. The composition and evaluation are shown in Table 2.

[0078] [Example 14] Except for omitting paraffin, using 20 parts microcrystalline wax, and 18.96 parts dimethicone, test specimens were prepared and evaluated in the same manner as in Example 5. The composition and evaluation are shown in Table 2.

[0079] [Example 15] The test specimens were prepared and evaluated in the same manner as in Example 14, except that 12 parts of carnauba wax were used instead of microcrystalline wax, and the amount of dimethicone was set to 26.96 parts. The composition and evaluation are shown in Table 2.

[0080] [Example 16] The test specimens were prepared and evaluated in the same manner as in Example 15, except that 12 parts of candelilla wax were added instead of carnauba wax. The composition and evaluation are shown in Table 2.

[0081] [Example 17] A test specimen was prepared and evaluated in the same manner as in Example 14, except that 8.1 parts of alkyl (C30-45) methicone and 6.9 parts of olefin (C30-45) were added instead of microcrystalline wax, and the amount of dimethicone was set to 23.96 parts. The composition and evaluation are shown in Table 2.

[0082] [Example 18] A test specimen was prepared and evaluated in the same manner as in Example 7, except that the aqueous component contained no water and 2 parts of 1,3-butylene glycol. The composition and evaluation are shown in Table 2.

[0083] [Example 19] A test specimen was prepared and evaluated in the same manner as in Example 7, except that the aqueous component did not contain 1,3-butylene glycol and contained 2 parts water. The composition and evaluation are shown in Table 3.

[0084] [Example 20] A test specimen was prepared and evaluated in the same manner as in Example 7, except that the aqueous component contained 0.5 parts water and 1.5 parts 1,3-butylene glycol. The composition and evaluation are shown in Table 3.

[0085] [Example 21] A test specimen was prepared and evaluated in the same manner as in Example 7, except that the aqueous component contained 1.5 parts water and 0.5 parts 1,3-butylene glycol. The composition and evaluation are shown in Table 3.

[0086] [Example 22] The test specimens were prepared and evaluated in the same manner as in Example 7, except that 1 part glycerin was added instead of 1 part 1,3-butylene glycol in the aqueous component. The composition and evaluation are shown in Table 3.

[0087] [Example 23] The test specimens were prepared and evaluated in the same manner as in Example 7, except that one part of propanediol (1,3-propanediol) was added instead of one part of 1,3-butylene glycol in the aqueous component. The composition and evaluation are shown in Table 3.

[0088] [Example 24] Test specimens were prepared and evaluated in the same manner as in Example 7, except that 1 part 1,2-hexanediol was added instead of 1 part 1,3-butylene glycol in the aqueous component. The composition and evaluation are shown in Table 3.

[0089] [Comparative Example 1] A test sample was prepared and evaluated in the same manner as in Example 1, except that 10 parts hydrogenated polyisobutene, 30.03 parts cyclopentasiloxane, and 1.8 parts PEG-10 dimethicone were blended, with 10 parts trimethylsiloxysilicate and 1.2 parts sorbitan sesquiisostearate, and no isododecane, dimethicone, or aqueous components were included. The composition and evaluation are shown in Table 3.

[0090] [Comparative Example 2] The test specimens were prepared and evaluated in the same manner as in Example 1, except that the amount of dimethicone was 27.96 parts and no aqueous components were included. The composition and evaluation are shown in Table 3.

[0091] [Comparative Example 3] The test specimens were prepared and evaluated in the same manner as in Example 7, except that the amount of dimethicone was 20.96 parts and the amount of aqueous components was 8 parts (4 parts water, 4 parts 1,3-butylene glycol). The composition and evaluation are shown in Table 3.

[0092] [Table 1]

[0093] [Table 2]

[0094] [Table 3]

[0095] Tables 1-3 show that solid cosmetic compositions containing isododecane, dimethicone, disteardimonium hectorite, and an aqueous component, with a disteardimonium hectorite content of 1-5% by mass, an aqueous component content of 0.5-4% by mass, and a water content of 0.5-2% by mass in the aqueous component, exhibited good usability and filling properties (Examples 1-24).

[0096] In contrast, while solid cosmetic compositions containing cyclopentasiloxane exhibited good usability and filling properties, concerns arose regarding the environmental impact of the cyclopentasiloxane (Comparative Example 1). Furthermore, solid cosmetic compositions containing isododecane, dimethicone, and disteardimonium hectorite, without cyclopentasiloxane and without any aqueous components, exhibited poor usability and filling properties (Comparative Example 2). Moreover, solid cosmetic compositions containing 8% by mass of aqueous components (with a water content of 4% by mass) exhibited poor filling properties (Comparative Example 3).

[0097] These results indicate that a solid cosmetic composition containing 10% to 80% by mass of volatile oils excluding cyclic siloxanes, 1% to 6% by mass of organically modified clay minerals, and 0.1% to 4% by mass of aqueous components, with water content of 2% or less by mass in the aqueous components, and a rheometer hardness of 30 to 200, is less environmentally conscious, has excellent usability, and good filling properties.

[0098] Although embodiments of the present invention have been described above, the present invention is not limited to any particular embodiment, and various modifications and changes are possible within the scope of the invention as described in the claims.

[0099] This application claims priority based on Japanese Patent Application No. 2020-179702, filed on 27 October 2020, the entire contents of which are incorporated herein by reference.

Claims

1. Volatile oils (excluding cyclic siloxanes) in an amount of 10% to 80% by mass, Organically modified clay minerals in an amount of 1% to 6% by mass, It contains 0.1% to 4% by mass of an aqueous component including water and polyhydric alcohols, The water content in the aqueous component is 0.5% by mass or more and 2% by mass or less relative to the total amount of the solid cosmetic composition. A solid cosmetic with a rheometer hardness of 30 to 200.

2. The solid cosmetic composition according to claim 1, wherein the mixture of the organically modified clay mineral and the aqueous component is in the form of a gel.

3. The solid cosmetic composition according to claim 1 or 2, wherein the mass ratio of the polyhydric alcohol to the aqueous component is 0.1 or more and 1 or less.

4. The solid cosmetic composition according to any one of claims 1 to 3, further containing hydrophobic silica.

5. A solid cosmetic composition according to any one of claims 1 to 4, further comprising at least one of a solid oil, a liquid oil (excluding the volatile oil), and a film-forming agent.

6. A solid cosmetic composition according to any one of claims 1 to 5, which is applied with a brush.

7. A solid cosmetic composition according to any one of claims 1 to 6, which is filled in a jar container.

8. A solid cosmetic composition according to any one of claims 1 to 7, which is an eyeliner.

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