Oil-based cosmetics

Abstract

This invention provides a novel oil-based cosmetic that does not require a volatile liquid, has excellent spreadability during application, quickly transforms into a powdery texture after application, and offers superior makeup longevity. [Solution] The oily cosmetic composition according to the present invention has a kinematic viscosity of 4 to 20 mm at 25°C. 2 The solution contains a non-volatile oil (a), spherical particles (b), a film-forming agent (c), and a colorant (d), all of which have a boiling point of less than 290°C at 1 atmosphere and a temperature of / s, with a mass ratio of spherical particles (b) to non-volatile oil (a) of 1.0 to 3.5.

Description

[Technical Field]

[0001] This invention relates to oil-based cosmetics. [Background technology]

[0002] Oil-based cosmetics are a type of cosmetic formulation commonly used in foundations, eyeshadows, and the type or amount of oils and powders incorporated into these cosmetics can be changed to achieve a variety of functions and textures.

[0003] The present inventors previously proposed in Patent Document 1 an oil-based powder foundation containing spherical particles, titanium dioxide, a film-forming agent, a volatile oil agent, and a surfactant. The oil-based powder foundation described in Patent Document 1 has the excellent spreadability characteristic of oil-based products, while also having the function of quickly changing to a powdery feel after application, and also exhibiting excellent makeup longevity (resistance to sebum and sweat). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-176122 [Overview of the project] [Problems that the invention aims to solve]

[0005] The oil-based powder foundation described in Patent Document 1 contains a relatively large amount of volatile oils, and therefore requires an airtight container for storage. However, if the composition does not contain volatile liquids, or has a low content of volatile liquids, various containers other than airtight containers can be used, and changes in composition due to drying can be minimized.

[0006] Therefore, the object of the present invention is to provide a novel oil-based cosmetic composition that does not require a volatile liquid, has excellent spreadability when applied, quickly transforms into a powdery texture after application, and has excellent staying power. [Means for solving the problem]

[0007] The following embodiments are specific means for solving the above problems. <1> The kinematic viscosity at 25°C is 4-20 mmHg. 2 It contains a non-volatile oil (a), spherical particles (b), a film-forming agent (c), and a colorant (d), which have a temperature of / s and a boiling point of 290°C or higher at 1 atmosphere. An oily cosmetic composition in which the mass ratio of the content of the spherical particles (b) to the content of the non-volatile oil (a) is 1.0 to 3.5. <2> The content of volatile liquids with a boiling point of less than 290°C at 1 atmosphere is less than 5% by mass. <1> Oil-based cosmetics as described above. <3> The non-volatile oil (a) has a content of 15 to 50% by mass. <1> or <2> Oil-based cosmetics as described above. <4> The content of the aforementioned spherical particles (b) is 30 to 65% by mass. <1> ~ <3> An oil-based cosmetic as described in any one of the following items. <5> Further containing wax (e), <1> ~ <4> An oil-based cosmetic as described in any one of the following items. <6> Free from silicone compounds <1> ~ <5> An oil-based cosmetic as described in any one of the following items. <7> The naturally derived index (excluding water), calculated in accordance with ISO 16128, is 90% or higher. <1> ~ <6> An oil-based cosmetic as described in any one of the following items. <8> Foundation, eyeshadow, eyebrow products, blush, or primer / makeup products, <1> ~ <7> An oil-based cosmetic as described in any one of the following items. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a novel oil-based cosmetic composition that does not require a volatile liquid, has excellent spreadability during application, quickly transforms into a powdery texture after application, and has excellent staying power. [Modes for carrying out the invention]

[0009] The following describes in detail specific embodiments to which the present invention is applied. In this specification, the notation "x~y" using numerical values ​​x and y shall mean "inclusive of x or greater than or equal to y" unless otherwise specified. If a unit is attached only to the numerical value y in such notation, that unit shall also apply to the numerical value x.

[0010] <Oil-based cosmetics> The oily cosmetic composition according to this embodiment has a kinematic viscosity of 4 to 20 mm at 25°C. 2 The product contains a non-volatile oil (a) (hereinafter also referred to as "component (a)"), spherical particles (b) (hereinafter also referred to as "component (b)"), a film-forming agent (c) (hereinafter also referred to as "component (c)"), and a colorant (d) (hereinafter also referred to as "component (d)"), with a boiling point of 290°C or higher at 1 atmosphere and a volume of / s, wherein the mass ratio of the content of component (b) to the content of component (a) is 1.0 to 3.5.

[0011] The oily cosmetic composition according to this embodiment does not require a volatile liquid, yet exhibits excellent spreadability during application, quickly transforms into a powdery texture after application, and has excellent staying power. The reason for this is not entirely clear, but it is presumed to be as follows: During application, the low-viscosity non-volatile oil agent (a) provides excellent spreadability, and after application, the spherical particles (b) provide a powdery texture. Furthermore, the spherical particles (b) on the skin surface are fixed by the film-forming agent (c), resulting in excellent staying power.

[0012] The following describes in detail each component contained in the oily cosmetic composition according to this embodiment. Each of the following components may be used individually or in combination of two or more.

[0013] [Non-volatile oils (a)] In this specification, "non-volatile" means that the boiling point at 1 atmosphere is 290°C or higher.

[0014] The non-volatile oil component (a) has a kinematic viscosity of 4-20 mm at 25°C. 2The kinematic viscosity of the non-volatile oil at 25°C is 4 mm². 2 A viscosity of 20 mmHg or higher tends to make the good spreadability characteristic of oily materials more noticeable. Furthermore, the kinematic viscosity of the non-volatile oil at 25°C is 20 mmHg. 2 A viscosity of less than / s results in good spreadability during application and tends to produce a good powdery feel after application. The kinematic viscosity of non-volatile oils at 25°C is 4-18 mm². 2 It is preferable that it be / s, which is 4-15mm 2 A value of / s is more preferable. Note that the kinematic viscosity was measured at 25°C using a B-type viscometer.

[0015] As a non-volatile oil agent, it has a kinematic viscosity of 4-20 mm at 25°C. 2 The oil is not particularly limited as long as it is s and can be used in cosmetics. Examples of non-volatile oils include ester oils such as dicaprylyl carbonate, (capric acid / caprylic acid) coconut alkyl, heptyl undecylenate, hydrogenated olive oil ethylhexyl / hydrogenated olive oil unsaponifiables, ethyl isostearate, and hexyl laurate; hydrocarbon oils such as (C15-19) alkanes and liquid paraffin. Among these, plant-derived oils are preferred from the viewpoint of reducing environmental impact.

[0016] As the non-volatile oil agent, commercially available products can also be used. For example, as commercially available products of dicaprylyl carbonate, Cetiol CC (manufactured by BASF) and the like can be mentioned. As commercially available products of (capric acid / caprylic acid) coconut alkyl, Liponate CCC MB (manufactured by Vantage Specialty Ingredients), Cetiol C5C (manufactured by BASF) and the like can be mentioned. As commercially available products of heptyl undecylenate, LexFeel Natural (manufactured by INOLEX) and the like can be mentioned. As commercially available products of hydrogenated olive oil ethylhexyl / hydrogenated olive oil unsaponifiable matter, Natura-Tec Plantsil (manufactured by H. Holstein Co., Ltd.), VAS (Vegetable Alternative to Silicone) (manufactured by Kowa Co., Ltd.) and the like can be mentioned. As commercially available products of ethyl isostearate, EIS-V (manufactured by Kao Alcohol Industry Co., Ltd.) and the like can be mentioned. As commercially available products of hexyl laurate, KAK HL (manufactured by Kao Alcohol Industry Co., Ltd.) and the like can be mentioned. As commercially available products of (C15-19) alkane, Jeechem NDA-5 (manufactured by Jeen International Corporation), EMOSMART L19 (manufactured by SEPPIC S.A.) and the like can be mentioned. As commercially available products of liquid paraffin, liquid paraffin No.50S (manufactured by Mitsuho Chemical Industry Co., Ltd.) and the like can be mentioned.

[0017] The content of component (a) is preferably 15 to 50% by mass, more preferably 18 to 45% by mass, and even more preferably 20 to 40% by mass.

[0018] [Spherical particles (b)] In this specification, "spherical" includes not only true spheres but also substantially spherical, ellipsoidal spheres, etc., and means those having a ratio of the major axis to the minor axis (aspect ratio) of 1.0 to 1.5, preferably 1.0 to 1.2. The spherical particles as component (b) may have a smooth surface, may have pores on the surface, or may have minute irregularities on the surface.

[0019] The volume-average particle diameter of the spherical particles is preferably 5 to 30 μm, more preferably 6 to 25 μm, and even more preferably 7 to 20 μm. When the volume-average particle diameter of the spherical particles is within the above range, the feel, finish, and soft-focus function (blurring function that makes pores and other imperfections less noticeable) of the oily cosmetic composition according to this embodiment tend to be good. The volume-average particle diameter is the particle diameter (median diameter) at which the cumulative volume distribution curve reaches 50% when drawn from the smallest diameter side in the particle size distribution measured by laser diffraction and scattering.

[0020] The material of the spherical particles is preferably selected from the viewpoint of dispersibility (wettability of the spherical particles) and usability in oily cosmetics. Examples of spherical particles include cellulose powder, cellulose acetate powder, calcium carbonate powder, silica powder, and urethane powder. Among these, plant-derived spherical particles such as cellulose and cellulose acetate are preferred from the viewpoint of reducing environmental impact.

[0021] Commercially available spherical particles can also be used. For example, commercially available cellulose powders include CELLULOBEADS D-10, CELLULOBEADS D-5 (both manufactured by Daito Chemical Industries, Ltd.), Selfflow C-25 (manufactured by JNC Corporation), RUBLALEAF KCX (manufactured by Dainichi Seika Kogyo Co., Ltd.), and GE-800 (manufactured by Toshiki Pigment Co., Ltd.). Commercially available cellulose acetate powders include BELLOCEA S7 (manufactured by Daicel Corporation) and Selfflow TA-25 (manufactured by JNC Corporation). Commercially available calcium carbonate powders include Karumaru SCS-M5 (manufactured by Sakai Chemical Industry Co., Ltd.) and NL-QC10 (manufactured by New Lime Co., Ltd.). Commercially available silica powders include SB-700 (manufactured by Miyoshi Chemical Co., Ltd.). Commercially available urethane powders include TP Powder D-400 and D-800 (both manufactured by Toshiki Pigment Co., Ltd.).

[0022] The content of component (b) is preferably 30 to 65% by mass, and more preferably 35 to 60% by mass.

[0023] The mass ratio of the content of component (b) to the content of component (a) is set to 1.0 to 3.5. When the content of component (b) is 1.0 times or more than the content of component (a), a good powdery feel tends to be obtained after application. Furthermore, when the content of component (b) is 3.5 times or less than the content of component (a), the spreadability during application tends to be good, and the makeup tends to last longer after application. The mass ratio of the content of component (b) to the content of component (a) is preferably 1.1 to 3.0, and more preferably 1.1 to 2.3.

[0024] [Film-forming agent (c)] The film-forming agent, component (c), is a paste or solid at 25°C and dissolves in the non-volatile oil, component (a), to form a film on the skin.

[0025] Examples of film-forming agents include rosin resins (hydrogenated pentaerythrityl rosinate, pentaerythrityl rosinate, glyceryl rosinate, etc.), acrylic resins with an acrylic polymer as the main chain and hydrophobic groups in the side chains, natural ester resins (candelilla wax extract, carnauba wax extract), sugar fatty acid esters (dextrin isostearate, etc.), modified starch, isobutene resins (polyvinyl isobutyl ether, polyisobutylene, etc.), and vinyl acetate resins. Among these, dextrin isostearate and candelilla wax extract are preferred from the viewpoint of cosmetic longevity and reduction of environmental impact.

[0026] From the viewpoint of spreading the film-forming agent evenly during use, it is preferable to dissolve it in a solvent before use. Examples of solvents include triethylhexanoin.

[0027] Commercially available film-forming agents can also be used. For example, commercially available pentaerythrityl hydrogenated rosinate products include Ester Gum HP (manufactured by Arakawa Chemical Industries, Ltd.). Commercially available candelilla wax extract products include Candelilla Resin E-1 (manufactured by Nippon Natural Products Co., Ltd.). Commercially available carnauba wax extract products include TOWAX-1B4 (manufactured by Toa Chemical Co., Ltd.). Commercially available dextrin isostearate products include Unifilma HVY and Unifilma Liquid TEH (75% by mass triethylhexanoin solution) (both manufactured by Chiba Flour Milling Co., Ltd.).

[0028] The content of component (c) is preferably 0.1 to 15% by mass, more preferably 0.5 to 12% by mass, and even more preferably 1 to 10% by mass.

[0029] [Color material (d)] The colorant, which is component (d), is not particularly limited as long as it can be used in cosmetics. The colorant is not limited to chromatic colors, but may also be achromatic, and may be a pearler, glosser, etc. Examples of colorants include inorganic white pigments such as titanium dioxide and zinc oxide; inorganic red pigments such as iron oxide (red iron oxide) and iron titanate; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and ochre; inorganic black pigments such as black iron oxide and lower titanium oxide; inorganic purple pigments such as manganese 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; carbon black pigments such as carbon black and graphite; metal powders such as aluminum powder, gold powder, silver powder, and copper powder; pearlers such as titanium oxide coated mica and iron oxide titanium oxide coated mica; and boron nitride. Examples include: glazing agents such as chromium and mica; organic pigments such as Red No. 104, Red No. 201, Red No. 202, Red No. 218, Red No. 219, Red No. 220, Red No. 223, Red No. 225, Red No. 226, Red No. 227, Red No. 228, Red No. 504, Orange No. 201, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 201, Yellow No. 203, Yellow No. 204, Yellow No. 403, Blue No. 1, Blue No. 404, Green No. 3, Green No. 201, Green No. 202, Green No. 204, and Violet No. 201; and natural pigments such as β-carotene, cochineal dye, red cabbage dye, riboflavin, crocin, anthraquinone, canthaxanthin, and safflower dye.

[0030] The colorant may be surface-treated to enhance its wettability with non-volatile oils. Examples of surface treatment agents include fluorine compounds, silane coupling agents, metal soaps, fatty acids, and plant-derived esters. Among these, plant-derived esters are preferred from the viewpoint of reducing environmental impact, and polyglyceryl-2 tetraisostearate is more preferred.

[0031] The content of component (d) is preferably 0.1 to 30% by mass, more preferably 1 to 25% by mass, and even more preferably 5 to 20% by mass.

[0032] [Wax (e)] The oily cosmetic composition according to this embodiment may contain wax (e) (hereinafter also referred to as "component (e)") in order to form a solid type cosmetic composition, for example.

[0033] Examples of waxes include natural waxes such as sunflower wax, carnauba wax, candelilla wax, beeswax, Japanese wax, and rice bran wax; mineral waxes such as polyethylene wax, paraffin wax, microcrystalline wax, and ceresin; saturated fatty acids such as myristic acid, palmitic acid, stearic acid, arachidic acid, and behenic acid; higher fatty acid esters such as cetyl palmitate; and higher alcohols such as cetanol, stearyl alcohol, and behenyl alcohol. Among these, plant-derived waxes are preferred from the viewpoint of reducing environmental impact.

[0034] If the oily cosmetic composition according to this embodiment contains component (e), its content is preferably 0.1 to 5% by mass, more preferably 0.5 to 4% by mass, and even more preferably 1 to 3.5% by mass.

[0035] [Surfactants (f)] The oily cosmetic composition according to this embodiment may contain a surfactant (f) (hereinafter also referred to as "component (f)") in order to enhance the wettability of component (b) and component (d) to the non-volatile oil agent.

[0036] As component (f), a nonionic surfactant with an HLB (Hydrophilic-Lypophilic Balance) value of 10 or less is preferred, and a nonionic surfactant with an HLB value of 6 or less is more preferred. The HLB value is a value that indicates the balance between hydrophilicity and lipophilicity, and is determined by Griffin's formula. If there are two or more surfactants, the HLB value is the arithmetic mean of the values ​​obtained by multiplying the HLB value of each surfactant by the blending ratio of each surfactant.

[0037] Examples of nonionic surfactants with an HLB value of 10 or less include sorbitan esters such as sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquiisostearate, and sorbitan sesquioleate; diglyceryl esters such as diglyceryl monoisostearate and diglyceryl monooleate; sucrose fatty acid esters, polyoxyethylene alkyl ethers, and polyoxyethylene hydrogenated castor oil. Among these, plant-derived nonionic surfactants are preferred from the viewpoint of reducing environmental impact.

[0038] If the oily cosmetic composition according to this embodiment contains component (f), its content is preferably 0.1 to 5% by mass, more preferably 0.3 to 4% by mass, and even more preferably 0.5 to 3% by mass.

[0039] [Other ingredients] (Volatile liquid) The oily cosmetic composition according to this embodiment does not necessarily require a volatile liquid, but may contain one. In this specification, "volatile" means that the boiling point at 1 atmosphere is less than 290°C. Examples of volatile liquids include (C9-12) alkanes, isododecane, n-tridecane, and water.

[0040] The content of the volatile liquid is preferably less than 5% by mass, more preferably 3% by mass or less, even more preferably 1% by mass or less, and may be 0% by mass (i.e., no volatile liquid).

[0041] (Organically modified bentonite) The oil-based cosmetic according to this embodiment may contain organically modified bentonite for viscosity adjustment or the like. Organically modified bentonite is a kind of colloidal hydrous aluminum silicate having a three-layer structure, and a typical one is obtained by modifying a clay mineral with a quaternary ammonium salt-type cationic surfactant. Examples of organically modified bentonite include dimethyldistearylammonium hectorite (distearyldimonium hectorite), dimethylalkylammonium hectorite, benzyldimethylstearylammonium hectorite, and aluminum magnesium silicate treated with distearyldimethylammonium chloride.

[0042] (Others) In addition to the above components, the oil-based cosmetic according to this embodiment may contain powders other than component (b) and component (d) (such as barium sulfate), ultraviolet absorbers, antioxidants, preservatives, etc. Also, as long as it does not interfere with the effects of the present invention, it may contain non-volatile oil agents other than component (a) (outside the range of kinematic viscosity at 25°C of 4 to 20 mm 2 / s).

[0043] [Method for preparing oil-based cosmetic] The method for preparing the oil-based cosmetic according to this embodiment is not particularly limited, and a known method for preparing an oil-based cosmetic can be adopted. An example of the preparation method is as follows. First, component (a) and component (c), and component (e), component (f), and other components that are blended as necessary are heated to 80 to 90°C and dissolved. Next, component (b) and component (d), and other components that are blended as necessary are added to the obtained liquid and stirred. After stirring, it is left standing at 80 to 90°C to defoam, filled into a container, and cooled.

[0044] Furthermore, from the viewpoint of reducing environmental impact, the oily cosmetic composition according to this embodiment preferably does not contain silicone compounds. In addition, from the viewpoint of reducing environmental impact, the oily cosmetic composition according to this embodiment preferably has a naturally derived index (excluding water) calculated in accordance with ISO 16128 (hereinafter simply abbreviated as "naturally derived index") of 90% or more, more preferably 95% or more, and even more preferably 98% or more.

[0045] [Uses of oil-based cosmetics] The oil-based cosmetic composition according to this embodiment possesses the excellent spreadability characteristic of oil-based materials, while also having the function of quickly transforming into a powdery texture after application, and exhibiting excellent makeup retention (resistance to sebum and sweat). For this reason, the oil-based cosmetic composition according to this embodiment can be suitably used as a foundation (solid or liquid type), eyeshadow, eyebrow powder, blush, makeup base, etc. [Examples]

[0046] The present invention will be described more specifically below with reference to examples, but the present invention is not limited to these examples.

[0047] <Examples 1-11 and Comparative Examples 1-5> The oily cosmetic compositions of Examples 1-11 and Comparative Examples 1-5 were prepared as follows. First, component (a) or oil, component (c), component (e), and component (f) from the components shown in Tables 1-3 below were mixed and heated to 80-90°C to dissolve. Next, component (b), component (d), and other components were added to the resulting liquid and stirred. After stirring, the mixture was allowed to stand at 80-90°C to remove bubbles, filled into containers, and cooled. In Tables 1-3, the numerical values ​​in the column for each component represent the blending ratio (unit: mass%) of that component, and a blank space means that the component was not blended. Also, the kinematic viscosity in Tables 1-3 all represents the value at 25°C.

[0048] <Rating> For the oil-based cosmetics of Examples 1-11 and Comparative Examples 1-5, six expert panelists conducted practical use tests and evaluated four items: "spreadability," "powdery feel," "finish," and "makeup longevity." The evaluation was based on a 1-5 point scale as shown below, and the average score (rounded to two decimal places) was evaluated according to the four-level A-D evaluation criteria shown below. The results are shown in Tables 1-3 below. (Rating) 5 points: Very good 4 points: Good 3 points: Average 2 points: Slightly inferior 1 point: Inferior (Evaluation Criteria) A: Average score of 4.1 or higher B: The average score is between 3.1 and 4.0 C: Average score is between 2.1 and 3.0 D: The average score is 2.0 or lower.

[0049] [Table 1]

[0050] [Table 2]

[0051] [Table 3]

[0052] The details of each component used in Examples 1-11 and Comparative Examples 1-5 are as follows. *1 Dicaprylyl carbonate: Manufactured by BASF, Cetiol CC *2 (Capric / Capric Acid) Coconut Alkyl: Manufactured by Vantage Specialty Ingredients, Liponate CCC MB *3 Ethyl isostearate: Manufactured by Higher Alcohol Industry Co., Ltd., EIS-V *4 Hexyl laurate: Manufactured by KAK HL, Higher Alcohol Industry Co., Ltd. *5 Liquid paraffin: Manufactured by Sanko Chemical Industry Co., Ltd., Liquid paraffin No. 50S *6 Squalane: Sugar squalane, manufactured by Nikko Chemicals Co., Ltd. *7 Jojoba seed oil: Refined jojoba oil manufactured by Yokozeki Oil & Fat Industry Co., Ltd. *8 Cellulose powder (average volume particle size: 14 μm): Manufactured by Daito Chemical Industries, Ltd., CELLULOBEADS D-10 *9 Cellulose acetate powder (average volume particle size: 7 μm): Manufactured by Daicel Corporation, BELLOCEA S7 *10 Urethane powder (average volume particle size: 7 μm): Manufactured by Toshiki Pigment Co., Ltd., TP Powder D-800 *11 Dextrin isostearate: Manufactured by Chiba Flour Milling Co., Ltd., Unifilma HVY *12 Candelilla wax extract: Manufactured by Nippon Natural Products Co., Ltd., Candelilla resin E-1 *13 Trimethylsiloxysilicate / dimethicone mixture: Manufactured by Shin-Etsu Chemical Co., Ltd., KF-7312K (Resin component: 60%, Dimethicone: 40%) *14 Polyglyceryl-2 tetraisostearate-treated titanium dioxide: Manufactured by Daito Chemical Industries, Ltd., PGQ Titanium Dioxide R250 *15 Polyglyceryl-2 tetraisostearate-treated iron oxide red: Manufactured by Daito Chemical Industries, Ltd., PGQ Red No. 211P *16 Polyglyceryl-2 tetraisostearate-treated iron oxide yellow: Manufactured by Daito Chemical Industries, Ltd., PGQ Yellow No. 602F *17 Polyglyceryl-2 tetraisostearate-treated iron oxide black: Manufactured by Daito Chemical Industries, Ltd., PGQ Black 710P *18 Silicone-treated titanium oxide: Manufactured by Miyoshi Chemical Co., Ltd., SA-Titanium CR-50 (100%) *19 Silicone-treated iron oxide yellow: Manufactured by Miyoshi Chemical Co., Ltd., SA-Yellow LL-100P (100%) *20 Silicone-treated iron oxide red: Manufactured by Miyoshi Chemical Co., Ltd., SA-Red R-516PS (100%) *21 Silicone-treated iron oxide black: Manufactured by Miyoshi Chemical Co., Ltd., SA-Black BL-100P (100%) *22 Sunflower wax: Manufactured by Yokozeki Oil & Fat Industry Co., Ltd., refined sunflower wax *23 Carnauba wax: Manufactured by Kato Yoko Co., Ltd., Carnauba wax No. 1 *24 Ceresin: Purified ceresin N, manufactured by Nikko Rica Co., Ltd. *25 Sorbitan sesquioleate: Manufactured by Kao Corporation, Leodor AO-15V *26 (C9-12) Alkan: Manufactured by Jeechem International Corporation, Jeechem NDA-LC *27 Isododecane: Manufactured by Maruzen Petrochemical Co., Ltd., Markazol® *28 Barium sulfate: Plate-type barium sulfate H-LFM, manufactured by Sakai Chemical Industry Co., Ltd. *29 Disteardimonium hectorite: Elementis, BENTONE 38

[0053] The dimethicone contained in the trimethylsiloxysilicate / dimethicone mixture used in Example 4 has a kinematic viscosity of 6 mm at 25°C. 2 Since it is / s and has a boiling point of 290°C or higher at 1 atmosphere, it corresponds to component (a).

[0054] As shown in Tables 1-3, the oily cosmetic compositions of Examples 1-11, which contained components (a) to (d) and had a mass ratio of component (b) content to component (a) content of 1.0-3.5, exhibited excellent spreadability during application, a non-sticky powdery feel after application, and excellent makeup longevity. In contrast, the oily cosmetic compositions of Comparative Examples 1 and 2, which used an oil with high kinematic viscosity instead of component (a), showed poor spreadability during application and did not provide a powdery feel after application. Furthermore, the oily cosmetic composition of Comparative Example 3, in which the mass ratio of component (b) content to component (a) content was less than 1.0, did not provide a powdery feel after application. On the other hand, the oily cosmetic composition of Comparative Example 4, in which the mass ratio of component (b) content to component (a) content was greater than 3.5, showed poor spreadability during application and poor makeup longevity. Furthermore, the oil-based cosmetic composition of Comparative Example 5, which did not contain ingredient (c), had an inferior finish after application and poor staying power.

[0055] Furthermore, the oil-based cosmetics of Examples 1-4 and 6-11 are suitable as solid-type foundations, and the oil-based cosmetic of Example 5 is suitable as a liquid-type foundation. For reference, examples of formulations other than foundations are shown in Table 4 below. In Table 4, the numerical values ​​in the column for each component represent the blending ratio (unit: mass%) of that component, and a blank space means that the component is not included. Also, the kinematic viscosity in Table 4 is the value at 25°C. The oil-based cosmetic of Formulation Example 1 is suitable as an eyeshadow, the oil-based cosmetic of Formulation Example 2 is suitable as a blush, and the oil-based cosmetic of Formulation Example 3 is suitable as a makeup base.

[0056] [Table 4]

Claims

1. Kinematic viscosity at 25°C is 4-20 mmHg ２ It contains a non-volatile oil (a), spherical particles (b), a film-forming agent (c), and a colorant (d), which are s and have a boiling point of 290°C or higher at 1 atmosphere. An oily cosmetic composition in which the mass ratio of the content of the spherical particles (b) to the content of the non-volatile oil (a) is 1.0 to 3.

5.

2. The oily cosmetic composition according to claim 1, wherein the content of a volatile liquid having a boiling point of less than 290°C at 1 atmosphere is less than 5% by mass.

3. The oily cosmetic composition according to claim 1 or 2, wherein the content of the non-volatile oil agent (a) is 15 to 50% by mass.

4. The oily cosmetic composition according to claim 1 or 2, wherein the content of the spherical particles (b) is 30 to 65% by mass.

5. The oily cosmetic composition according to claim 1 or 2, further comprising wax (e).

6. An oily cosmetic composition according to claim 1 or 2, which does not contain a silicone compound.

7. An oily cosmetic composition according to claim 1 or 2, wherein the naturally derived index (excluding water), calculated in accordance with ISO 16128, is 90% or more.

8. An oil-based cosmetic according to claim 1 or 2, which is a foundation, eyeshadow, eyebrow powder, blush, or base cosmetic.

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