Oily rod-like cosmetic

Abstract

The present invention provides an oil-based rod-like cosmetic comprising (A) a solid oil, (B) a spherical powder having an average particle diameter of 1-50 [mu] m, (C) a volatile component, (D) a coating agent, and (E) a colorant, and containing (A1) rice chaff wax as component (A).

Description

Technical Field

[0001] The present invention relates to an oily stick cosmetic. Background Art

[0002] Eyeliner pencils, concealer pencils, etc. having a pencil shape or an automatic pencil type in which the core is sent out and used are used for parts where the coating part is thin or narrow, such as the edge of the eyelid, parts where skin blemishes are to be covered, etc. As the core material, an oily stick cosmetic composed of a solid oil such as wax and a powder component such as a coloring material is generally used, but the composition of the cosmetic is also improved according to the required functions, usability, makeup feeling, etc.

[0003] For example, in an eyeliner pencil, in addition to characteristics related to functions such as formability that can maintain the shape in the case of thinning, color development, clarity of the drawn line, and resistance to secondary adhesion that can suppress secondary adhesion of the cosmetic due to blinking, a usability that feels smooth and soft (creamy feeling) during coating is also sought. In addition, regarding the makeup feeling, for example, there are a glossy feeling, a matte feeling, a pearlescent feeling, etc., and the textures are diverse. In recent years, people tend to prefer a matte makeup feeling.

[0004] As a method of imparting a matte makeup feeling, for example, a technique of blending a silicone elastomer is proposed in Japanese Patent Laid-Open No. 2000-281532 and Japanese Patent Laid-Open No. 2019-014670, a technique of blending a clay mineral is proposed in Japanese Patent Laid-Open No. 2020-105142, and a technique of increasing the wax content is proposed in Japanese Patent Laid-Open No. 2023-62540. Summary of the Invention

[0005] However, regarding the technique of blending a silicone elastomer, since the silicone elastomer is a mixture with a non-volatile oil, it is difficult to make the coating film uniform, and the resistance to secondary adhesion is also insufficient. Regarding the technique of blending a clay mineral, due to its high oil absorbency, a dry feeling is generated, the smoothness during coating deteriorates, and there is a tendency for the creamy feeling to be insufficient. Regarding the technique of increasing the wax content, since the cosmetic becomes hard, the coatability and the creamy feeling are insufficient, the outline of the drawn line tends to become unclear, and there is also a tendency that it is difficult to balance color development and formability in a thin core shape. In addition, if only the cosmetic is made soft, poor formability is likely to occur, it is likely to be deformed (become uneven) during coating, and the outline of the drawn line tends to be skewed.

[0006] The present invention has been completed in view of the above circumstances, and an object thereof is to provide an oily stick cosmetic having sufficient formability and capable of satisfying all conditions of a creamy usability, non-deformability during coating, and a drawn line having sufficient matte feeling, color development, clarity of outline, and resistance to secondary adhesion.

[0007] In order to solve the above problems, the following invention is provided.

[0008] [1] An oil-based stick cosmetic, which contains (A) a solid oil, (B) spherical powder with an average particle diameter of 1 to 50 μm, (C) a volatile component, (D) a film-forming agent, and (E) a coloring material. As the above-mentioned component (A), it contains (A1) rice (ORYZASATIVA) bran wax. [2] The oil-based stick cosmetic according to [1], wherein the content of the above-mentioned component (A) is 3 to 25% by mass based on the total amount of the oil-based stick cosmetic. [3] The oil-based stick cosmetic according to [1] or [2], wherein the content of the above-mentioned component (A1) is 0.1 to 10% by mass based on the total amount of the oil-based stick cosmetic. [4] The oil-based stick cosmetic according to any one of [1] to [3], wherein the content of the above-mentioned component (A1) is 1 to 70% by mass based on the total amount of the above-mentioned component (A). [5] The oil-based stick cosmetic according to any one of [1] to [4], wherein, as the above-mentioned component (A), it further contains (A2) hydrocarbon wax, and the mass ratio [(A1) / (A2)] of the above-mentioned component (A1) to the hydrocarbon contained in the above-mentioned (A2) hydrocarbon wax is 1 / 30 to 2 / 1. [6] The oil-based stick cosmetic according to any one of [1] to [5], wherein the above-mentioned component (B) is spherical silica encapsulating a metal oxide. [7] The oil-based stick cosmetic according to any one of [1] to [6], wherein the above-mentioned component (D) is trimethylsiloxysilicate. [8] The oil-based stick cosmetic according to any one of [1] to [7], wherein the content of the above-mentioned component (C) is 10 to 40% by mass based on the total amount of the oil-based stick cosmetic. [9] The oil-based stick cosmetic according to any one of [1] to [8], wherein the total content of the paste oil and the liquid oil contained in the above-mentioned oil-based stick cosmetic is 0.1 to 20% by mass based on the total amount of the oil-based stick cosmetic.

[10] The oil-based stick cosmetic according to any one of [1] to [9], wherein the ratio of the content of the above-mentioned component (A) to the total content of the paste oil and the liquid oil contained in the above-mentioned oil-based stick cosmetic is 0.1 to 30.

[0009] According to the oily stick cosmetic described in the above [1], by having the above composition, it can have sufficient formability and can meet all the conditions of a creamy feel in use, non-deformability during coating, and the drawn line having sufficient matte feeling, color development property, clarity of contour, and resistance to secondary adhesion. The inventors of the present invention speculate the reasons for being able to exhibit the above effects as follows. The inventors believe that by combining rice bran wax and spherical powder having a specific size and formulating them in a cosmetic containing solid oil such as wax that can obtain a matte feeling and the above component (C), the cosmetic can be given a hardness that can sufficiently maintain its shape and the property of being able to be coated without the contour of the drawn line being distorted due to physical properties that are likely to collapse once stretched. Thus, the inventors speculate that even with a weak force, a drawn line can be formed while maintaining a uniform and sufficiently color-developing film thickness, and the resistance to secondary adhesion based on the above component (D) can also be sufficiently obtained.

[0010] According to the present invention, an oily stick cosmetic can be provided that has sufficient formability and can meet all the conditions of a creamy feel in use, non-deformability during coating, and the drawn line having sufficient matte feeling, color development property, clarity of contour, and resistance to secondary adhesion. Detailed implementation mode

[0011] [Oily stick cosmetic] The oily stick cosmetic of the present implementation mode contains (A) solid oil (sometimes also referred to as component (A)), (B) spherical powder with an average particle size of 1 to 50 μm (sometimes also referred to as component (B)), (C) volatile component (sometimes also referred to as component (C)), (D) film-forming agent (sometimes also referred to as component (D)), and (E) colorant (sometimes also referred to as component (E)).

[0012] (Solid oil) Examples of solid oil include waxes such as rice bran wax (rice bran wax), beeswax, carnauba wax (COPERNICIA CERIFERA), candelilla wax (EUPHORBIA CERIFERA), sunflower seed wax, spermaceti, lanolin; solid oils such as hydrogenated castor oil, hydrogenated jojoba oil, palm oil, Japanese lacquer (RHUS SUCCEDANEA) fruit wax; hydrocarbons such as paraffin wax, microcrystalline wax, candelilla wax hydrocarbon, Fischer-Tropsch wax, polyethylene; esters such as trimyristin, cholesterol fatty acid ester; higher alcohols such as stearyl alcohol, behenyl alcohol; silicone such as acrylic-modified silicone; sugar fatty acid esters such as dextrin palmitate, stearoyl inulin, etc.

[0013] It should be noted that in this specification, solid oil refers to an oil that does not show fluidity at 40°C. The melting point of the solid oil can be 40°C or higher. It should be noted that the melting point of the solid oil is measured by the following method.

[0014] Weigh a sample of about 5 mg and place it in an aluminum sample dish. Attach an aluminum lid to the dish and set it in a differential scanning calorimeter "DSC7020" (manufactured by Hitachi High-Tech Science Corporation, trade name). Using an electric cooling unit "Polyscience" (manufactured by Hitachi High-Tech Science Corporation, trade name), under a nitrogen flow rate of 30 - 35 mL / min, keep the sample and the reference sample at -10°C for 1 minute, then heat them from 0°C to 120°C at a heating rate of 10°C / min, and cool them from 120°C to -10°C under a cooling condition of -10°C / min. After keeping them at -10°C for 5 minutes, then heat them from -10°C to 120°C again at a heating rate of 10°C / min to obtain an endothermic melting curve. Take the peak temperature of the endothermic melting curve during the second heating at this time as the melting point.

[0015] Component (A) can be used alone or in combination of two or more.

[0016] From the viewpoints of formability, creamy feel in use, and non-deformability during coating, the content of component (A) can be 3 - 25% by mass, can be 5 - 20% by mass, or can be 7 - 18% by mass based on the total amount of the oily stick cosmetic.

[0017] From the viewpoints of sufficient formability, creamy feel in use, non-deformability during coating, and forming a drawn line with sufficient matte feeling, color development property, contour clarity, and secondary adhesion resistance, the oily stick cosmetic of the present embodiment contains rice bran wax ((A1) component sometimes) as component (A).

[0018] Regarding rice bran wax, rice bran wax containing an ester of an alcohol having 22 - 36 carbon atoms and a fatty acid having 16 - 34 carbon atoms can be used.

[0019] As rice bran wax, commercially available products such as "NC-1720" (manufactured by Cerrica Noda Co., Ltd., trade name), "Rice Wax SS-2" (manufactured by Bosso Oil Co., Ltd., trade name), "Refined Rice Wax S-100" (manufactured by Yokoseki Oil Industry Co., Ltd., trade name) can be used.

[0020] The saponification value of rice bran wax can be 70 - 95 or 75 - 95. The melting point of rice bran wax can be 70 - 90°C or 75 - 85°C.

[0021] From the viewpoints of highly satisfying the creamy feel, sufficient formability, non-deformability during coating, and sharpness of the outline of the drawn line, the content of the (A1) component may be 0.1 to 10% by mass, may be 0.3 to 8% by mass, or may be 0.5 to 7% by mass based on the total amount of the oily stick cosmetic.

[0022] In addition, from the viewpoints of formability and creamy feel, the content of the (A1) component may be 1 to 70% by mass, may be 5 to 60% by mass, or may be 7 to 40% by mass based on the total amount of the (A) component.

[0023] From the viewpoints of further improving formability, color development, and sharpness of the outline, the oily stick cosmetic of the present embodiment may contain the (A1) component and hydrocarbon wax (also referred to as the (A2) component) as the (A) component. In this specification, hydrocarbon wax refers to a solid oil containing 30% by mass or more of hydrocarbons. The (A2) component may be used alone or in combination of two or more.

[0024] From the viewpoint of formability, as the (A2) component, the above-mentioned hydrocarbons, candelilla wax, etc. may be used. From the viewpoint of formability, the (A2) component may also contain polyethylene. The (A2) component may be used alone or in combination of two or more.

[0025] When the oily stick cosmetic of the present embodiment further contains the (A2) component as the (A) component, from the viewpoints of further improving formability, color development, and sharpness of the outline, the mass ratio of the hydrocarbon contained in the (A1) component to the (A2) component [(A1) / (A2)] may be 1 / 30 to 2 / 1, may be 1 / 25 to 4 / 3, or may be 1 / 12 to 1 / 1. In addition, from the viewpoints of creamy feel and non-deformability, the total content of the (A1) component and the hydrocarbon contained in the (A2) component may be 3 to 25% by mass, may be 5 to 20% by mass, may be 6 to 19% by mass, or may be 8 to 18% by mass based on the total amount of the oily stick cosmetic.

[0026] (Spherical powder with an average particle diameter of 1 to 50 μm) As the (B) component, spherical inorganic particles, spherical organic particles, and spherical composite powder containing metal oxide may be used. The spherical composite powder containing metal oxide may be spherical inorganic particles encapsulating metal oxide.

[0027] In this specification, the average particle diameter of the spherical powder refers to the value of the volume average particle diameter measured by a laser diffraction / scattering particle size distribution analyzer (manufactured by HORIBA, LA-960) in the state of dry powder. It should be noted that the volume average particle diameter is the average particle diameter based on volume and is the 50% median particle diameter. The average particle diameter of the spherical powder can refer to the catalog value of the raw material.

[0028] Examples of the spherical inorganic particles include silica, calcium carbonate, magnesium carbonate, etc. They can be porous. As the spherical inorganic particles, commercially available products such as "SUNSIL130L" (manufactured by SUNJIN CHEMICAL, trade name, average particle diameter: 7 μm), "Silica Micro Beads P-1500" (manufactured by JGC Catalysts & Chemicals Ltd., trade name, average particle diameter: 11 μm), "Spherical Calcium Carbonate Karumaru SCS-M5" (manufactured by Sakai Chemical Industry Co., Ltd., trade name, average particle diameter: 5 μm) can be used.

[0029] Examples of the spherical organic particles include methyl methacrylate cross-linked polymer, nylon spherical powder, cross-linked silicone, silk powder, polyurethane powder, etc. As the spherical organic particles, commercially available products such as "Matsumoto Microsphere M503B" (manufactured by Matsumoto Yushi Seiyaku Co., Ltd., trade name, average particle diameter: 20 μm), "Nylon-12" (manufactured by Toray Industries, Inc., trade name, average particle diameter: 5 μm), "KSP-101" (manufactured by Shin-Etsu Chemical Co., Ltd., trade name, average particle diameter: 5 μm) can be used.

[0030] Examples of the metal oxides that make up the spherical composite powder containing metal oxides include titanium oxide, zinc oxide, iron oxide, etc.

[0031] The average particle diameter of the metal oxide can be 1 to 1000 nm, 3 to 500 nm, 5 to 100 nm, or 8 to 50 nm.

[0032] Examples of the matrix of the composite powder include silica, titanium oxide, zinc oxide, iron oxide, etc.

[0033] The spherical composite powder containing a metal oxide can be spherical inorganic particles (such as the above-mentioned matrix) encapsulating the above metal oxide. Such composite powders can be commercially available products. For example, “SUNSIL TIN 40” (manufactured by SUNJIN CHEMICAL, average particle size: 5 μm), “SUNSIL TIN 50” (manufactured by SUNJIN CHEMICAL, trade name, average particle size: 5 μm), “SH219” (manufactured by SUNJIN CHEMICAL, trade name, average particle size: 5 μm), “SH219AS” (manufactured by SUNJIN CHEMICAL, trade name, average particle size: 5 μm), “PC ball WT-35H” (manufactured by Suzuki Oil & Fat Co., Ltd., trade name, average particle size: 3 μm), “Pulsear SIZ-30” (manufactured by Suzuki Oil & Fat Co., Ltd., trade name, volume average particle size: 4 μm), “Ainaflex IWS22S13” (manufactured by Nippon Sheet Glass Co., Ltd., volume average particle size: 4 μm), etc. can be cited.

[0034] From the viewpoint of further improving the creamy feel in use, the color development of the drawn line, and the clarity of the contour, the oily stick cosmetic of the present embodiment may contain spherical silica encapsulating titanium oxide as the component (B).

[0035] (B) component can be used alone or in combination of two or more.

[0036] From the viewpoint of satisfying the creamy feel in use, sufficient formability, non-deformability during coating, and clarity of the contour of the drawn line at a high level, the content of the component (B) can be 0.5 to 35% by mass, can be 1 to 30% by mass, or can be 3 to 20% by mass based on the total amount of the oily stick cosmetic.

[0037] (Volatile component) As the component (C), volatile silicone oils and volatile hydrocarbon oils can be cited.

[0038] As the volatile silicone oil, low molecular weight linear siloxanes such as dimethylpolysiloxane can be cited; cyclic siloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; branched siloxanes such as methylpolymethyltrisiloxane.

[0039] As the volatile hydrocarbon oil, isododecane, undecane, tridecane, light liquid isoparaffin, etc. can be cited.

[0040] (C) component may have a boiling point of 250 °C or lower, may have a boiling point of 210 °C or lower, or may have a boiling point of 200 °C or lower at 1 atmosphere (101.325 kPa).

[0041] (C) component can be used alone or in combination of two or more kinds.

[0042] From the viewpoints of creamy feel in use, non-deformability during coating, and resistance to reattachment, the content of (C) component, based on the total amount of the oily stick cosmetic, can be 10 to 40% by mass, can be 15 to 30% by mass, or can be 17 to 27% by mass.

[0043] (Film-forming agent) As the (D) component, there can be mentioned silicone resins such as trimethylsiloxysilicate, polyalkylsilsesquioxane, acrylic (ester) / stearyl acrylate / polydimethylsiloxymethacrylate copolymer, acrylic (ester) / polydimethylsiloxane copolymer and other acrylic-silicone resins and silicone-based film-forming agents, candelilla resin, etc. From the viewpoints of balanced color development, resistance to reattachment, and creamy feel in use, the (D) component can be trimethylsiloxysilicate.

[0044] (D) component can be used alone or in combination of two or more kinds.

[0045] From the viewpoints of color development and resistance to reattachment, the content of (D) component, based on the total amount of the oily stick cosmetic, can be 3 to 35% by mass, or can be 5 to 30% by mass. From the viewpoints of creamy feel in use and formability, it can be 10 to 28% by mass.

[0046] (Colorant) As the (E) component, there can be mentioned colored inorganic pigments, colored organic pigments, pearlescent pigments, etc.

[0047] As the colored inorganic pigments, there can be mentioned iron oxide red, iron oxide yellow, iron oxide black, cobalt oxide, ultramarine, Prussian blue, titanium oxide, zinc oxide, etc. As the pearlescent pigments, there can be mentioned pigments obtained by covering the surfaces of mica, synthetic phlogopite, glass, silica, alumina, talc, etc. with colorants such as titanium oxide, iron oxide, silica, Prussian blue, chromium oxide, tin oxide, chromium hydroxide, gold, silver, carmine, organic pigments, etc., mica titanate, fish scale foil, bismuth oxychloride, flaky aluminum powder, etc. As the colored organic pigments, there can be mentioned Red No. 228, Red No. 226, Blue No. 404, Red No. 202, Red No. 201, Yellow No. 4 aluminum lake, Blue No. 1 aluminum lake, etc., natural pigments (carmine, safflower, etc.).

[0048] (E) component can be used alone or in combination of two or more kinds.

[0049] When the oily stick cosmetic of the present embodiment contains a pearlescent pigment as the component (E), since the coating film has a matte feeling, it is possible to form a line that more prominently shows the pearlescent feeling (luster) generated by the pearlescent pigment.

[0050] From the viewpoints of formability, color development property, and creamy feel in use, the content of the component (E) may be 5 to 50% by mass, may be 8 to 40% by mass, or may be 10 to 35% by mass based on the total amount of the oily stick cosmetic.

[0051] (Other components) In the oily stick cosmetic of the present embodiment, as components other than the above components (A) to (E), if they are components commonly used in cosmetics, oily components (other oily components) other than the component (A), the component (C), and the component (D), powder components (other powder components) other than the component (B) and the component (E), etc. can be used without particular limitation. The other components may be used singly or in combination of two or more.

[0052] As the other oily components, they may be oil agents other than the component (A). For example, paste oils and liquid oils can be used. As the paste oil, for example, petrolatum, dipentaerythritol hexahydroxystearate / hexastearate / hexapinonate, dipentaerythritol tetrahydroxystearate / tetraisostearate, dipentaerythritol pentaisostearate, dipentaerythritol hexahydroxystearate, glyceryl trioctanoate / decanoate / myristate / stearate, hydrogenated castor oil isostearate, phytosteryl oleate, sucrose hexaoleate / hexapalmitate / hexastearate, phytosteryl macadamiate, bis-diglycerol polyacyladipate-2, phytosteryl / isostearyl / cetyl / stearyl / behenyl dimer dilinoleate, etc. can be cited.

[0053] As the liquid oil, for example, sorbitan sesquiisostearate, sorbitan isostearate, sorbitan sesquioleate, cetyl ethylhexanoate, ethylhexyl palmitate, glyceryl tri(ethylhexanoate), isotridecyl isononanoate, isostearyl isostearate, neopentyl glycol di(ethylhexanoate), caprylic / capric triglyceride, neopentyl glycol dicaprate, propanediol diisostearate, trimethylolpropane tri(ethylhexanoate), octyldodecyl myristate, octyldodecyl stearoyloxystearate, diisostearyl malate, polyglyceryl triisostearate, dipentaerythritol pentaisostearate, trimethylolpropane triisostearate and other ester oils can be cited; silicone oils such as non-volatile polydimethylsiloxane and methylphenyl polysiloxane; hydrocarbon oils such as liquid paraffin, squalane, olefin oligomers, and hydrogenated polyisobutene; vegetable oils such as sunflower seed oil, jojoba (SIMMONDSIA CHINENSIS) seed oil, olive oil, and castor oil; higher alcohols such as isostearyl alcohol, octyldodecanol, and oleyl alcohol, etc.

[0054] In the oily stick cosmetic of the present embodiment, the total content of the paste oil and the liquid oil may be 0.1 to 20% by mass, may be 0.5 to 15% by mass, or may be 1 to 10% by mass based on the total amount of the oily stick cosmetic. It should be noted that in this specification, the liquid oil refers to an oily component having a melting point of 25°C or lower and a viscosity at 25°C of 1,000,000 mPa·s or lower.

[0055] In the oily stick cosmetic of the present embodiment, from the viewpoints of further improving the creamy feel, matte feeling of the drawn line, color developability, clarity of the contour, and resistance to secondary adhesion, the proportion of the content of the component (A) relative to the total content of the paste oil and the liquid oil may be 0.1 to 30, may be 0.2 to 20, or may be 0.3 to 16.

[0056] As other powder components, if they are powders commonly used in cosmetics, they can be used without particular limitation. For example, extender powders other than the component (B) can be cited. There is no particular limitation on the shape of the powder, and it can have shapes such as spherical, plate-like, needle-like, smoky, fine particles, pigment-grade particle sizes, and particle structures such as porous and non-porous.

[0057] Specifically, examples of extender pigments include mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, montmorillonite, alumina, plate-like silica, magnesia, zirconia, chromium oxide, aluminum hydroxide, magnesium hydroxide, etc.; examples of ultraviolet scatterers include fine titanium oxide, fine zinc oxide, etc.; examples of organic powders include acrylonitrile-methyl methacrylate copolymer powder, vinylidene chloride-methyl methacrylate copolymer, polyethylene powder, polystyrene powder, polymethylsilsesquioxane powder, wool powder, cellulose powder, N-acyl lysine powder, etc.; and examples of metal soaps include magnesium stearate, zinc myristate, aluminum stearate, calcium stearate, etc.

[0058] These powder components can be hydrophobic-treated powders. Examples of hydrophobic treatment include higher fatty acids, metal soaps, oils and fats, waxes, silicone compounds, fluorine compounds, surfactants, and dextrin fatty acid esters.

[0059] In the oily stick cosmetic of the present embodiment, the total content of the oily components (including component (A), component (C), and component (D)) can be 30 to 90% by mass, 35 to 85% by mass, or 40 to 80% by mass based on the total amount of the oily stick cosmetic.

[0060] In the oily stick cosmetic of the present embodiment, the total content of the powder components (including component (B) and component (E)) can be 10 to 70% by mass, 15 to 65% by mass, or 20 to 60% by mass based on the total amount of the oily stick cosmetic.

[0061] In addition to the above components, the oily stick cosmetic of the present embodiment may further contain components commonly used in cosmetics, such as surfactants, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, ultraviolet absorbers, ultraviolet scatterers, chelating agents, anti-inflammatory agents, moisturizing agents, etc.

[0062] The oily stick cosmetic of the present embodiment can be manufactured, for example, by the following steps. Mix the oily components, and mix other components as needed, and heat to melt. Mix the powder components in the obtained melt, and uniformly disperse the mixture by a three-roll mill or a stirrer. Then, the mixture (cosmetic base material) is formed by an extrusion molding machine, die molding, or container filling, etc., whereby an oily stick cosmetic can be obtained.

[0063] The shape of the oily stick cosmetic is not particularly limited, but the shape of the cross-section of the oily stick cosmetic orthogonal to the long axis direction can be, for example, a circle, an ellipse, a triangle, a rectangle, or a polygon (the number of corners is 5 or more), a water droplet shape, a heart shape, etc.

[0064] When the cross-sectional shape is a circle or an ellipse, the diameter or the short diameter passing through the center of the ellipse may be 0.5 to 10 mm, 1.0 to 5.0 mm, or 1.3 to 3.0 mm.

[0065] When the cross-sectional shape is a shape other than a circle or an ellipse, as long as the outer edge is contained within a circle with a diameter of 10 mm, the diameter of the shortest part passing through the center can be 0.5 to 10 mm, 1.0 to 5 mm, or 1.5 to 3 mm regardless of the shape.

[0066] The oily stick cosmetic of this embodiment is preferably used as an eyeliner, eye shadow, concealer, highlighter, lip liner, eye bag pencil, etc. In addition, the oily stick cosmetic of this embodiment can be used for a pencil-type cosmetic product in which the stick-shaped cosmetic is built into a machine container used to send out the stick-shaped cosmetic, or a wooden shaft / resin shaft container, etc.

[0067] The oily stick cosmetic of this embodiment has a creamy feel during use, and can effectively provide a desired makeup effect with a good makeup feel to the face (especially the edges of the eyes) where it is difficult to draw strongly.

[0068] [Example] Hereinafter, the present invention will be described in more detail based on examples, but the technical scope of the present invention is not limited to these examples.

[0069] [Preparation of oily stick cosmetics] (Examples 1 to 27 and Comparative Examples 1 to 3) According to the following preparation method, the oily stick cosmetics (eyeliners) shown in Tables 1 to 5 (Example 18 is eye shadow) were prepared.

[0070] <Preparation method> The powder component is mixed with the mixture after the oil component is melted at 80-100°C, and the mixture is uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material is filled in a metal mold and molded into a cylindrical shape with a diameter of 2 mm. It should be noted that in Example 18, the cylindrical shape is molded into a diameter of 5 mm.

[0071] [Evaluation of Oily Stick Cosmetics] The obtained oily stick-shaped cosmetics were evaluated for various items based on the following evaluation methods. The results are shown in Tables 1 to 5.

[0072] <Evaluation of the feeling of use and makeup> Five members of the cosmetic evaluation expert panel used a push-out pencil-shaped container with the cosmetic materials of the examples and comparative examples stored as the core material to apply it to the edges of the eyes, and evaluated it from the viewpoints of creamy usability, clarity of the outline of the drawn line, non-deformability, matte feeling, and good color development (covering power). It should be noted that in each evaluation, a five-level evaluation was conducted according to the following evaluation criteria, scores were given to each sample, and then the average score of all panel members was judged according to the following judgment criteria. [Score: Evaluation Criteria] 5 points: Very good 4 points: Good 3 points: Ordinary 2 points: Slightly poor 1 point: Poor [Judgment Criteria (Average Score of Scores)] ◎: 4 or more ○: 3 or more and less than 4 △: 2 or more and less than 3 ×: Less than 2

[0073] [Secondary Adhesion Resistance] After applying 1 cm × 3 cm of the cosmetic material on a biological skin plate (manufactured by Biurax Co., Ltd.), after 5 minutes, then rub it back and forth with a finger 3 times, and evaluate it in 4 levels with the naked eye according to the following evaluation criteria. [Judgment Criteria] ◎: The cosmetic material does not adhere to the finger and the coating film has no change. ○: The cosmetic material is slightly transferred to the finger, but the coating film has no change. △: Some of the cosmetic material is transferred to the finger and the coating film becomes thinner. ×: The cosmetic material is transferred to the finger and almost no coating film remains.

[0074] [Formability] After filling the cosmetic material substrate into a metal mold with a rod shape and cooling and solidifying it, the state of the taken-out formed product is evaluated in 4 levels with the naked eye according to the following evaluation criteria. [Judgment Criteria] ◎: Formed in the shape of the metal mold △: Slight bending occurs in the formed product ×: Bending occurs in the formed product, or the cosmetic material substrate does not solidify or separate

[0075] [Table 1]

[0076] [Table 2]

[0077] [Table 3]

[0078] [Table 4]

[0079] [Table 5]

[0080] The details of the solid oils and powder components shown in Tables 1 to 5 and in the following examples are as described below.

[0081] (Solid oil) Rice bran wax: "NC-1720" (manufactured by Noda Cerica Co., Ltd., trade name) Polyethylene: "PERFORMASW-84Synthetic Wax" (manufactured by NuCera Solutions LLC, trade name) Candelilla wax: "Refined Candelilla Wax MK-4" (manufactured by Yokoseki Oil & Fat Co., Ltd., trade name, hydrocarbon content: about 40% by mass) Candelilla wax hydrocarbon: "Refined Candelilla Wax MD-21" (manufactured by Yokoseki Oil & Fat Co., Ltd., trade name, hydrocarbon content: about 80% by mass)

[0082] (Powder component) Spherical powder B-1: Spherical silica encapsulating titanium oxide (12 nm) (manufactured by SUNJIN CHEMICAL, trade name "SH219", average particle size: 5 μm) Spherical powder B-2: Spherical silica encapsulating hydrophobic titanium oxide (12 nm) (manufactured by SUNJIN CHEMICAL, trade name "SH219AS", average particle size: 5 μm) Spherical powder B-3: Spherical silica (manufactured by SUNJIN CHEMICAL, trade name "SUNSIL130L", average particle size: 7 μm) Spherical powder B-4: Methyl methacrylate cross-linked polymer (manufactured by Matsumoto Yushi Seiyaku Co., Ltd., trade name "Matsumoto Microsphere M503B", average particle size: 20 μm) Platy powder P-1: Platy silica (manufactured by Osaka Gas Chemical Co., Ltd., trade name "OVEILDR1", particle size: 11 μm)

[0083] (Example 28: Eyeliner)

[0084] <Manufacturing Method> In the mixture after melting the oily component at 80 - 100°C, the powder component was mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 2 mm.

[0085] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed that the evaluation results were as follows: creamy feel in use "○", clarity of the contour of the drawn line "◎", non-deformability "◎", matte finish "◎", good degree of color development (coverage) "○", resistance to secondary adhesion "◎", formability "◎". It should be noted that for the above eyeliner, the pearlescent finish was also evaluated on the basis of the matte finish, and the evaluation result was "◎".

[0086] (Example 29: Eyeliner)

[0087] <Manufacturing Method> In the mixture after melting the oily component at 80 - 100°C, the powder component was mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 3 mm.

[0088] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed that the evaluation results were as follows: creamy feel in use "○", clarity of the contour of the drawn line "◎", non-deformability "◎", matte finish "◎", good degree of color development (coverage) "○", resistance to secondary adhesion "◎", formability "◎". It should be noted that for the above eyeliner, the pearlescent finish was also evaluated on the basis of the matte finish, and the evaluation result was "◎".

[0089] (Example 30: Eyeliner)

[0090] <Manufacturing Method> In the mixture after melting the oily component at 80 - 100°C, the powder component was mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 2 mm.

[0091] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed to have an evaluation of "◎" for the creamy texture, "◎" for the clarity of the contour of the drawn line, "◎" for non-deformability, "◎" for the matte finish, "○" for the good degree of color development (coverage), "◎" for the resistance to secondary adhesion, and "◎" for the formability.

[0092] (Example 31: Concealer)

[0093] <Manufacturing method> In a mixture after melting the oily components at 80 - 100 °C, the powder components were mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 10 mm.

[0094] <Evaluation> For the obtained concealer, except for applying it to the back of the hand using a push-up stick-type container, the same evaluation as above was conducted, and the results were confirmed to have an evaluation of "◎" for the creamy texture, "◎" for the clarity of the contour of the drawn line, "◎" for non-deformability, "◎" for the matte finish, "◎" for the good degree of color development (coverage), "◎" for the resistance to secondary adhesion, and "◎" for the formability.

[0095] (Example 32: Eyeliner)

[0096] <Manufacturing method> In a mixture after melting the oily components at 80 - 100 °C, the powder components were mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 2 mm.

[0097] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed to have an evaluation of "○" for the creamy texture, "◎" for the clarity of the contour of the drawn line, "◎" for non-deformability, "◎" for the matte finish, "○" for the good degree of color development (coverage), "◎" for the resistance to secondary adhesion, and "◎" for the formability.

[0098] (Example 33: Eyeliner)

[0099] <Manufacturing method> In a mixture after melting the oily component at 80 to 100 °C, the powder component was mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 2 mm.

[0100] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed to have an evaluation of "◎" for the creamy feel during use, "◎" for the clarity of the outline of the drawn line, "◎" for non-deformability, "◎" for a matte finish, "◎" for the good degree of color development (coverage), "◎" for resistance to secondary adhesion, and "◎" for formability.

[0101] (Example 34: Eyeliner)

[0102] <Manufacturing method> In a mixture after melting the oily component at 80 to 100 °C, the powder component was mixed and uniformly dispersed using a three-roll mill to obtain a cosmetic base material. The obtained cosmetic base material was filled into a metal mold and formed into a cylindrical shape with a diameter of 2 mm.

[0103] <Evaluation> After conducting the same evaluation as above on the obtained eyeliner, it was confirmed to have an evaluation of "◎" for the creamy feel during use, "◎" for the clarity of the outline of the drawn line, "◎" for non-deformability, "◎" for a matte finish, "◎" for the good degree of color development (coverage), "◎" for resistance to secondary adhesion, and "◎" for formability.

Claims

1. An oily stick cosmetic comprising (A) a solid oil, (B) a spherical powder having an average particle size of 1 to 50 μm, (C) a volatile component, (D) a film-forming agent, and (E) a colorant. As the component (A), (A1) rice bran wax is contained.

2. The oily stick cosmetic according to claim 1, wherein The content of the component (A) is 3 to 25% by mass based on the total amount of the oily stick cosmetic.

3. The oily stick cosmetic according to claim 1 or 2, wherein: The content of the component (A1) is 0.1 to 10% by mass based on the total amount of the oily stick cosmetic.

4. The oily stick cosmetic according to claim 1 or 2, wherein: The content of the component (A1) is 1 to 70% by mass based on the total amount of the component (A).

5. The oily stick cosmetic according to claim 1 or 2, wherein: As the component (A), the component further contains (A2) a hydrocarbon wax, The mass ratio of the component (A1) to the hydrocarbons contained in the hydrocarbon wax (A2) [(A1) / (A2)] is 1 / 30 to 2 / 1.

6. The oily stick cosmetic according to claim 1 or 2, wherein: The component (B) is spherical silica containing a metal oxide.

7. The oily stick cosmetic according to claim 1 or 2, wherein: The component (D) is trimethylsiloxysilicate.

8. The oily stick cosmetic according to claim 1 or 2, wherein: The content of the component (C) is 10 to 40% by mass based on the total amount of the oily stick cosmetic.

9. The oily stick cosmetic according to claim 1 or 2, wherein: The total content of the paste oil and the liquid oil contained in the oily stick cosmetic is 0.1 to 20% by mass based on the total amount of the oily stick cosmetic.

10. The oily stick cosmetic according to claim 1 or 2, wherein: The content of the component (A) is 0.1 to 30 based on the total content of the paste oil and the liquid oil contained in the oily stick cosmetic.

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