Solid cosmetic

Abstract

To provide a solid cosmetic that exhibits excellent storage stability over time.SOLUTION: A solid cosmetic comprises: (A) sunflower wax; (B) an alkylene oxide derivative, a non-volatile hydrocarbon oil, a sterol derivative, or a plant-based oil; and (C) a liquid oil component, where the component (A) forms a card-house structure that retains the component (C) internally.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a solid cosmetic containing wax.

Background Art

[0002] Solid cosmetics may be used as cosmetics such as lipsticks and foundations. A solid cosmetic is obtained by shaping various components into a solid form using wax or the like. Since it is generally more difficult to spread a solid cosmetic than a liquid cosmetic, various improvements have been made to achieve good elongation on the skin and reduced stickiness.

[0003] On the other hand, in order to maintain moldability, solid cosmetics generally contain wax or the like, but it is known that solid cosmetics containing wax often have insufficient stability. Specifically, a phenomenon called bleeding, sweating, or powdering may occur, in which a part of the surface components of the solid cosmetic oozes out during storage over time. Since these phenomena impair the commercial value as a cosmetic, various improvements have been attempted (for example, Patent Document 1).

[0004] However, according to the studies by the present inventors, it has been found that there is still room for further improvement in the stability over time of solid cosmetics. Specifically, it has been found that when an emollient is combined with a solid cosmetic containing candelilla wax, which is generally used as wax, for the purpose of moisturizing or the like, the stability over time tends to deteriorate. For this reason, a technique that can achieve both moisture retention and stability over time while maintaining the shape as a solid cosmetic by including wax has been desired.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

[0006] The present invention has been studied and completed from the above viewpoints. According to the present invention, a solid cosmetic excellent in storage stability over time is provided.

[0007] According to the present invention, the following inventions are provided. [1] (A) Sunflower wax, (B) The following (B1) to (B4): (B1) An alkylene oxide derivative, (B2) A nonvolatile hydrocarbon oil, (B3) A sterol derivative, and (B4) A vegetable oil An emollient agent selected from the group consisting of, and (C) A liquid oil component A solid cosmetic containing, wherein the component (A) forms a card house structure that holds the component (C) inside. [2] The component (B1) is represented by the following formula (1): R 1 O-[(AO) p (EO) q -R 2 (1) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average addition molar numbers of an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group, respectively, 1 ≦ p ≦ 70, 1 ≦ q ≦ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass, The oxyalkylene group and the oxyethylene group may be added in a block form or in a random form, R 1 and R 2 may be the same or different hydrocarbon groups having 1 to 4 carbon atoms or hydrogen atoms, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R 1 and R 2 is 0.15 or less) A compound represented by, the solid cosmetic according to [1] or [2]. [3] (B2) component is hydrogenated polyisobutene or polybutene, the solid cosmetic according to [1] or [2]. [4] (B3) component is phytosterol / dimer linoleic acid higher alcohol ester, the solid cosmetic according to [1] or [2]. [5] (B4) component is an oily extract obtained from plants of the Acataceae family, the solid cosmetic according to [1] or [2]. [6] (B) component is (B1) component, the solid cosmetic according to [1] or [2]. [7] (A) component and (B) component contents are 5-20% by mass and 0.01-20% by mass respectively based on the total mass of the solid cosmetic, the oily solid cosmetic according to any one of [1] to [6]. [8] (D) Further comprising a colorant, the solid cosmetic according to any one of [1] to [7]. [9] (E) Further comprising a powder, the solid cosmetic according to any one of [1] to [8].

[10] The solid cosmetic according to any one of [1] to [9], which is an oily solid cosmetic.

[11] The solid cosmetic according to any one of [1] to [9], which is a water-in-oil type solid cosmetic.

[12] The oily solid cosmetic according to any one of [1] to

[11] , which is molded into a stick shape.

[0008] According to the present invention, there is provided a solid cosmetic having excellent stability over time with sweating and powdering suppressed under room temperature or high temperature conditions. Detailed description of the invention

[0009] [Solid cosmetic] The solid cosmetic according to the present invention (hereinafter sometimes simply referred to as "cosmetic") contains (A) sunflower wax, (B) emollient, and (C) liquid oil. These components are described as follows.

[0010] (A) Sunflower wax The cosmetic according to the present invention comprises sunflower wax (hereinafter sometimes referred to as component (A)). Sunflower wax is solid at normal temperature and imparts moldability to solid cosmetics. Sunflower wax has a characteristic that when combined with a liquid oil component described later, it forms a card house structure in which the sunflower wax holds the liquid oil component inside. It is considered that sunflower wax has a high effect of suppressing sweating and powdering due to an effective card house structure.

[0011] Sunflower wax is generally used in cosmetics, and it is a plant-derived wax obtained when sunflower seed oil is dewaxed. It is a solid oil mainly composed of long-chain saturated fatty acid esters composed of long-chain alcohols and long-chain fatty acids, and has a melting point in the range of 70 to 85°C. In INCI (International Nomenclature of Cosmetic Ingredients), it is Helianthus Annuus (Sunflower) Seed Wax (Japanese name: sunflower seed wax). Examples of commercially available products include refined sunflower wax (manufactured by Yokose Oil & Fat Industry Co., Ltd.).

[0012] The content of component (A) can be arbitrarily adjusted according to the purpose etc., but based on the total mass of the cosmetic, it is preferably 5 to 20% by mass, and more preferably 7 to 15% by mass.

[0013] (B) Emollient The cosmetic according to the present invention contains an emollient (hereinafter sometimes referred to as component (B)). The emollient has the effect of covering the skin surface when the solid cosmetic is spread on the skin and preventing the evaporation of moisture from the skin. And the emollient generally causes sweating or powdering from the solid cosmetic in the state before the solid cosmetic is applied to the skin. However, in the present invention, sweating or powdering is suppressed by using it in combination with component (A), and the effect of preventing the evaporation of moisture from the skin by component (B) is preferentially exhibited.

[0014] Such an emollient is (B1) alkylene oxide derivative, (B2) non-volatile hydrocarbon oil, (B3) sterol derivative, and (B4) plant oil selected from the group consisting of. These emollients will be described in more detail as follows.

[0015] (B1) alkylene oxide derivative The alkylene oxide derivative has a structure in which alkylene oxides such as oxyethylene and oxypropylene are polymerized as the main structure, and has hydrogen, a lower hydrocarbon group, a hydroxyl group, etc. at the terminal. The alkylene oxide derivative also has the function of improving the moist feeling of the skin.

[0016] The alkylene oxide derivative used in the cosmetic according to the present invention is not particularly limited, but is preferably a compound represented by the following formula (1). R 1 O-[(AO) p (EO) q -R 2 (1) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average number of moles of addition of an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group, respectively, 1 ≦ p ≦ 70, 1 ≦ q ≦ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass. The oxyalkylene group and the oxyethylene group may be added in a block form or in a random form, R 1 and R 2 may be the same or different and are a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, R 1 and R 2 (where the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R

[0017] In the compound represented by the above formula (1), AO is an oxyalkylene group having 3 to 4 carbon atoms. For example, an oxypropylene group, an oxybutylene group, an oxyisobutylene group, a trimethylene group, or a tetramethylene group can be mentioned. Preferably, an oxypropylene group or an oxybutylene group can be mentioned. p is the average number of moles of addition of an oxyalkylene group having 3 to 4 carbon atoms, 1 ≦ p ≦ 70, preferably 2 ≦ p ≦ 20. q is the average number of moles of addition of an oxyethylene group, 1 ≦ q ≦ 70, preferably 2 ≦ q ≦ 20. Also, as (p + q), preferably 8 to 100.

[0018] Also, in the compound represented by the above formula (1), the ratio of the oxyethylene group to the total of the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group is preferably 20 to 80% by mass. The order of addition of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms is not particularly limited. Also, the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms may be added in a block form or in a random form, but preferably in a random form. Here, the block form includes not only a two-stage block but also a three-stage block.

[0019] R 1 and R 2Even if the same type is used, or a hydrocarbon group having 1 to 4 carbon atoms and a hydrogen atom are mixed, or different hydrocarbon groups having 1 to 4 carbon atoms are mixed, it is acceptable. However, for R 1 and R 2 among the hydrocarbon groups, the ratio of the number of hydrogen atoms to the number of hydrocarbon groups, Y / X, where Y is the number of hydrogen atoms and X is the number of hydrocarbon groups, is 0.15 or less, preferably 0.06 or less. That is, R 1 and R 2 may be hydrogen, but the ratio is preferably small, and it is preferable that R 1 and R 2 are all hydrocarbon groups.

[0020] Specific alkylene oxide derivatives include, for example, polyoxyethylene(10 mol)polyoxypropylene(10 mol)dimethyl ether, polyoxyethylene(9 mol)polyoxypropylene(2 mol)dimethyl ether, polyoxyethylene(14 mol)polyoxypropylene(7 mol)dimethyl ether, polyoxyethylene(6 mol)polyoxypropylene(14 mol)dimethyl ether, polyoxyethylene(15 mol)polyoxypropylene(5 mol)dimethyl ether, polyoxyethylene(25 mol)polyoxypropylene(25 mol)dimethyl ether, polyoxyethylene(9 mol)polyoxybutylene(2 mol)dimethyl ether, polyoxyethylene(14 mol)polyoxybutylene(7 mol)dimethyl ether, polyoxyethylene(10 mol)polyoxypropylene(10 mol)diethyl ether, polyoxyethylene(10 mol)polyoxypropylene(10 mol)dipropyl ether, polyoxyethylene(10 mol)polyoxypropylene(10 mol)dibutyl ether, and etc. are mentioned. Among these, Polyoxyethylene (9 moles) polyoxypropylene (2 moles) dimethyl ether, Polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether, or Polyoxyethylene (36 moles) polyoxypropylene (41 moles) dimethyl ether is preferred, Polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether is particularly preferred.

[0021] (B2) Non-volatile hydrocarbon oil The non-volatile hydrocarbon oil used as an emollient in the cosmetic of the present invention is a relatively high-viscosity one among hydrocarbon oils. Specifically, the non-volatile hydrocarbon oil generally has a kinematic viscosity of 3,000 mm 2 / s or more, preferably 5,000 mm 2 / s or more, more preferably 10,000 mm 2 / s or more. By having such a relatively high kinematic viscosity, when the cosmetic is applied to the skin, it can adhere to the skin and strongly exert an emollient effect. On the other hand, so as not to impair the good elongation when applying the solid cosmetic, the non-volatile hydrocarbon oil generally has a kinematic viscosity of 500,000 mm 2 / s or less, preferably 100,000 mm 2 / s or less, more preferably 30,000 mm 2 / s or less. The kinematic viscosity can be measured in accordance with JIS K2283.

[0022] Among such non-volatile hydrocarbon oils, preferred ones include hydrogenated polyisobutene or polybutene. Hydrogenated polyisobutene is a hydrocarbon oil obtained by hydrogenating a copolymer of isobutene and n-butene.

[0023] (B3) Sterol derivative One of the emollient agents that can be used in the cosmetics according to the present invention is a sterol derivative, which is a sterol-based oil having a sterol skeleton, particularly an ester form. In the present invention, the sterol derivative is not particularly limited as long as it can be used in cosmetics and pharmaceuticals, but particularly, a phytosterol derivative or a cholesterol derivative is preferable. Further, the sterol derivative may be used alone or in combination of two or more kinds.

[0024] As the phytosterol derivative, an ester form having a phytosterol (plant sterol) skeleton that can be used in cosmetics and pharmaceuticals is preferable. For example, phytosterol-based oils such as acyl amino acid phytosterol / higher alcohol ester, dimer dilinoleic acid phytosterol / higher alcohol ester, and phytosterol fatty acid ester can be mentioned.

[0025] Examples of the acyl amino acid phytosterol / higher alcohol ester include di(phytosteryl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, (phytosteryl / decylditetradecyl) myristoyl methyl-β-alanine and the like. Examples of the dimer dilinoleic acid phytosterol / higher alcohol ester include (phytosteryl / behenyl) dimer dilinoleate, (phytosteryl / isostearyl / cetyl / stearyl / behenyl) dimer dilinoleate, dimer dilinoleoyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate, di(isostearyl / phytosteryl) dimer dilinoleate and the like.

[0026] Examples of the phytosterol fatty acid ester include Macadamia nut oil fatty acid phytosteryl, Lanolin fatty acid phytosteryl, Phytosteryl stearate, Phytosteryl isostearate, Phytosteryl hydroxystearate, Phytosteryl oleate, Dihydrophytosteryl oleate, Phytosteryl ricinoleate, Phytosteryl nonanoate, Phytosteryl rice bran oil fatty acid, Phytosteryl palmitate, Phytosteryl 2-ethylhexanoate, Phytosteryl capric acid, Phytosteryl laurate, Phytosterol butyrate and the like can be mentioned.

[0027] Moreover, as commercially available products of the above phytosterol derivatives, for example, Erdrew PS-203, Erdrew PS-304, Erdrew PS-306, Erdrew APS-307 (each trade name, manufactured by Ajinomoto Co., Inc.), YOFCO-MAS, Prandul-PB, Prandul-S, Prandul-G, Raspland PI-DA (each trade name, manufactured by Nippon Seika Co., Ltd.) and the like can be mentioned.

[0028] As the cholesterol derivative, an ester form having a cholesterol skeleton that can be used in cosmetics and pharmaceuticals is preferable. For example, cholesterol-based oil components selected from acylamino acid cholesterol / higher alcohol esters and cholesterol fatty acid esters can be mentioned. Examples of the acylamino acid cholesterol / higher alcohol ester include di (cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, and di (cholesteryl / octyldodecyl) lauroyl glutamate and the like can be mentioned.

[0029] Examples of cholesterol fatty acid esters include cholesteryl macadamia nut oil fatty acid, cholesteryl hydroxystearate, cholesteryl lanolin fatty acid, branched fatty acid (C 12-31 ) cholesteryl, cholesteryl stearate, cholesteryl isostearate, cholesteryl oleate, dihydrocholesteryl oleate, cholesteryl ricinoleate, and cholesteryl nonanoate and the like.

[0030] Examples of commercially available products of the above cholesterol derivatives include Erdrew CL-301, Erdrew CL-202 (each a trade name, manufactured by Ajinomoto Co., Inc.), Estemol CHS (trade name, manufactured by Nisshin Oillio Group, Ltd.), YOFCO-MAC, YOFCO CLE-S, YOFCO CLE-NH (each a trade name, manufactured by Nippon Seika Co., Ltd.), and the like.

[0031] In the present invention, in particular, phytosterol / dimer dilinoleic acid / higher alcohol ester is preferably used as the above sterol derivative.

[0032] (B4) Vegetable oil One of the emollient agents that can be used in the cosmetic according to the present invention is vegetable oil. Vegetable oil is an oily extract collected from various plants and can be collected from the roots, stems, leaves, fruits, seeds, etc. of plants by compression, extraction, or the like. In the present invention, sunflower wax is not included in vegetable oil.

[0033] The plants from which plant oils are to be extracted are not particularly limited. Generally, for cosmetic use, plant oils extracted from plants selected from the Poaceae family, Lamiaceae family, Pedaliaceae family, Camelliaceae family, Asteraceae family, Oleaceae family, Buxaceae family, or Euphorbiaceae family are used. In the present invention as well, it is preferable to use plant oils selected from among these. And among these, an oily extract obtained from a plant of the Euphorbiaceae family is preferable. The plant oil obtained from a plant of the Euphorbiaceae family is rich in oleic acid and linoleic acid, has a high emollient effect, and the contained vitamin A and vitamin E also have the effect of preventing the oxidation of the oil. Further, vitamin E removes active oxygen and also exhibits an anti-aging effect on the skin. As such a plant oil obtained from a plant of the Euphorbiaceae family, argan oil is preferably used.

[0034] The cosmetic according to the present invention contains, as an emollient, any one of the above (B1) to (B4), or a combination thereof, and among these, it is particularly preferable to contain (B1). (B1) exhibits an especially excellent effect of suppressing sweating and powdering. Also, the content of the component (B) can be arbitrarily selected according to the purpose, but the content of the component (B) is preferably 0.01 to 20% by mass, more preferably 0.05 to 10% by mass, based on the total mass of the cosmetic.

[0035] (C) Liquid oil The cosmetic according to the present invention further comprises a liquid oil (hereinafter sometimes referred to as component (C)). The liquid oil is an oil that is generally used in cosmetics and is liquid at normal temperature (25°C). More specifically, an oil having a hardness of less than 0.1 N at 25°C is a liquid oil. This hardness can be measured with a rheometer manufactured by Rheotech Co., Ltd. with a pressure-sensitive axis of 5φ, a needle penetration speed of 2 cm / min, and a penetration of 3 mm. In the present invention, it is assumed that the emollients (B1) to (B4) described above are not included in the component (C).

[0036] Such liquid oils include Ester oils such as pentaerythrityl tetraethylhexanoate, di(phytosteryl / octyldodecyl) lauroyl glutamate, triisostearin, glyceryl diisostearate, triethylhexanoin, (phytosteryl / behenyl) dimer dilinoleate, (phytosteryl / isostearyl / cetyl / stearyl / behenyl) dimer dilinoleate, isopropyl palmitate, triisostearin, ethylhexyl palmitate, myristyl myristate, isopropyl myristate, tripropylene glycol dipivalate, diisopropyl sebacate, isodecyl neopentanoate, isocetyl isostearate, cetyl 2-ethylhexanoate, 2-heptylundecyl palmitate, diisobutyl adipate, 2-hexyldecyl sebacate, isopropyl myristate, 2-octyldodecyl oleate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, glyceryl tri-2-heptylundecanoate, glyceryl diisostearate, glyceryl triisostearate, glyceryl trioctanoate, glyceryl triisopalmitate, trimethylolpropane tri-2-ethylhexanoate, or pentaerythritol tetra-2-ethylhexanoate; Chain silicone oils such as dimethylpolysiloxane or methylphenylpolysiloxane (diphenylsiloxyphenyltrimethicone); Cyclic silicone oils such as octamethylcyclotetrasiloxane or decamethylcyclopentasiloxane; Higher alcohols, fatty acids, triglycerides, and Fluorine-modified oils etc. can be mentioned.

[0037] In the cosmetic according to the present invention, the component (A) and the component (C) form a so-called card house structure. The card house structure is a structure in which wax components present as solid plate-like crystals in the composition physically mesh with each other, and a liquid oil component is retained in the internal space thereof. The properties of such a card house structure vary depending on the type of wax, and furthermore, by blending an appropriate emollient for the combination of the wax and the liquid oil component, sweating or powdering is suppressed. In the present invention, excellent properties are realized by appropriately combining this wax, emollient, and liquid component.

[0038] (D) Colorant The cosmetic according to the present invention contains the above-mentioned components (A) to (C) as essential components, but may further contain other additives. One such additive is a colorant (hereinafter sometimes referred to as component (D)).

[0039] As the component (D), it can usually be arbitrarily selected from colorants used in cosmetics and used. The shape may be powdery or lake-like (a state in which oil is kneaded). It may be an inorganic pigment, an organic pigment, or a pearlescent agent. At this time, it is desirable that the colorant dissolves or disperses in the component (A) that adheres to the skin or lips and does not dissolve or disperse in the component (C). If the colorant also disperses in the component (C), care must be taken because secondary adhesion, which easily adheres to clothing, masks, etc. after application to the skin or lips, is likely to occur.

[0040] Examples of colorants include inorganic white pigments (titanium dioxide, zinc oxide), inorganic red pigments (iron oxide (red iron oxide), iron titanate), inorganic brown pigments (γ-iron oxide), inorganic yellow pigments (yellow iron oxide, loess), inorganic black pigments (black iron oxide, carbon, lower titanium oxide), inorganic purple pigments (mango violet, cobalt violet), inorganic green pigments (chromium oxide, chromium hydroxide, cobalt titanate), inorganic blue pigments (ultramarine, navy blue), pearl pigments (titanium dioxide-coated mica, titanium dioxide-coated bismuth oxychloride, titanium dioxide-coated talc, colored titanium dioxide-coated mica, bismuth oxychloride, fish scale foil), metal powder pigments (aluminum powder, copper powder), organic pigments (Red No. 202, Red No. 205, Red No. 220, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 40, Blue No. 404), zirconium, barium, aluminum lake organic pigments (Red No. 3, Red No. 104, Red No. 227, Red No. 401, Orange No. 205, Yellow No. 4, Yellow No. 20, Green No. 3, Blue No. 1), natural pigments (chlorophyll, carotenoid-based (β-carotene), carthamin, cochineal, chalcone, curcumin, betanin, flavonol, flavone, anthocyanidin, anthraquinone, naphthoquinone), functional pigments (boron nitride, photochromic pigment, synthetic fluorophlogopite, iron-containing synthetic fluorophlogopite, fine particle composite powder (hybrid fine powder)), and the like.

[0041] (D) When used, the content of the component is preferably 0.1 to 15% by mass, more preferably 4 to 10% by mass, based on the total mass of the entire cosmetic. If the content of the (D) component is excessively low, the coloring effect on the skin and the like by the cosmetic may not be sufficiently obtained, and if it is excessively high, secondary adhesion and the like may easily occur.

[0042] (E) powder The cosmetic according to the present invention can further contain powder (hereinafter sometimes referred to as component (E)) as an additive. As the powder, it can be selected and used from those generally used in cosmetics, and any powder such as spherical powder and plate-like powder can be used.

[0043] Examples of the spherical powder include spherical resin powders such as polymethyl methacrylate, organopolysiloxane elastomer, polystyrene, polyamide resin (nylon), polyethylene, copolymer of styrene and acrylic acid, benzoguanamine resin, polytetrafluoroethylene, and silicone resin.

[0044] Examples of the plate-like powder include inorganic powders such as mica, synthetic mica, talc, sericite, aluminum oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, calcium sulfate, chromium oxide, chromium hydroxide, aluminum silicate, magnesium silicate, aluminum magnesium silicate, kaolin, silicon carbide, barium sulfate, bentonite, smectite, and boron nitride; organic powders such as N-acyl lysine; and composite powders such as fine particle titanium oxide-coated mica titan, fine particle zinc oxide-coated mica titan, and barium sulfate-coated mica titan.

[0045] When the component (E) is used, its content is preferably 30% by mass or less, more preferably 20% by mass or less, based on the total mass of the whole cosmetic.

[0046] (F) Other additives In addition to the above-described components, the cosmetic according to the present invention can optionally contain additives generally used in cosmetics. Examples of such additives include oily thickeners, ultraviolet absorbers, film-forming agents, water-soluble polymers, water-soluble drugs, oil-soluble drugs, sequestering agents, antioxidants, and water, which can be appropriately blended as needed.

[0047] The cosmetic according to the present invention is a solid cosmetic containing the above-described components and can take any form within that range. However, since the excellent properties of the cosmetic according to the present invention are likely to be exhibited in cosmetics with a high oil content, the cosmetic according to the present invention is preferably an oil-based cosmetic or an oil-in-water type cosmetic. Further, the cosmetic according to the present invention can be applied as a solid cosmetic to lipsticks, lip glosses, lip bases for primers, lipstick overcoats, lip creams, and the like. In particular, it is preferably applied to a cosmetic formed in a stick shape, for example, a lipstick.

Examples

[0048] [Examples 1 to 11 and Comparative Examples 1 to 12] Oil-based solid cosmetics were prepared by blending the components shown in Table 1 below. The properties of the cosmetics in each example were evaluated by the following methods.

[0049] [High-temperature stability (50°C for 1 h)] The cosmetic was spread on a metal dish, and the surface state after holding at 50°C for 1 hour was observed and evaluated according to the following criteria. A: No sweating B: No visible greasiness or droplets C: Visible droplets are observed D: Visible droplets cover more than half of the surface E: The entire surface is wet

[0050] [Powdering (RT1W)] The cosmetic was spread on a metal dish, and the final surface state after holding for 1 week while periodically changing the temperature between room temperature and 50°C was observed and evaluated according to the following criteria. A: No powdering B: Sweating marks are observed within a range of 1 / 4 or less of the surface, but no powdering C: Sweating marks are observed within a range of 1 / 2 or less of the surface, but no powdering D: Sweating marks are observed within a range of more than 1 / 2 of the surface, but no powdering E: White powder appears on the surface and the color has changed

[0051] [Sweating (on dish)] The cosmetic was spread on a metal dish, and the surface state was observed after being kept for 2 days while periodically changing the temperature between 45°C and -5°C, and evaluated according to the following criteria. A: No sweating B: No shininess or droplets C: Obvious droplets are visible D: Obvious droplets cover more than half of the surface, and some droplets are dripping E: The entire dish is wet

[0052] [Sweating (stick)] After the cosmetic was molded into a stick shape, the surface state was observed after being kept for 2 days while periodically changing the temperature between 45°C and -5°C, and evaluated according to the following criteria. A: No sweating B: Shininess is observed within the range of 1 / 2 or less of the surface C: Shininess is observed in the range of more than 1 / 2 of the surface D: Obvious droplets are visible within the range of 1 / 2 or less of the surface E: Obvious droplets are present in the range of more than 1 / 2 of the surface, and dripping of droplets is also observed at multiple locations

[0053] [Moisturizing effect] The cosmetic was spread on the skin, and its moisturizing effect was evaluated according to the following criteria. A: The moisturizing effect was extremely excellent B: The moisturizing effect was excellent C: A sufficient moisturizing effect was felt D: It was felt that the moisturizing effect was slightly insufficient E: The moisturizing effect was insufficient

[0054]

Table 1-1

[0055]

Table 1-2

[0056] Candelilla wax has been frequently used in conventional cosmetics. However, when the component (B) and the component (C) are combined, for example, although the moisturizing effect is improved, the stability tends to deteriorate. For example, when an emollient is added to Comparative Example 1, various stabilities become slightly inferior to the equivalent level (Comparative Examples 2 to 6). On the other hand, when candelilla wax is changed to sunflower wax, not only the moisturizing effect but also the stability is improved (Examples 1 to 5). It was found that the stability is unexpectedly improved by combining the component (B), which is generally considered to impart a moisturizing effect, only when sunflower wax is used as the component (A) (wax). This is presumably because there are differences in the card house structures formed by candelilla wax and sunflower wax. Such an effect was similarly observed with respect to the case where the component (B3) was combined with candelilla wax (Comparative Example 7).

[0057] [Examples 12 to 13 and Comparative Examples 13 - 14] An oil-in-water solid cosmetic was prepared by blending the components shown in Table 1 below. For each cosmetic example, the properties were evaluated in the same manner as described above.

[0058] [Table 2]

[0059] From these results, it can be seen that the effects of the present invention can be obtained not only in oil-based solid cosmetics but also in oil-in-water solid cosmetics.

Claims

1. (A) sunflower wax, (B) the following (B1) to (B4): (B1) an alkylene oxide derivative, (B2) a non-volatile hydrocarbon oil, (B3) a sterol derivative, and (B4) a vegetable oil selected from the group consisting of, and (C) a liquid oil component A solid cosmetic containing the same, wherein the component (A) forms a card house structure that holds the component (C) inside. A solid cosmetic.

2. The component (B1) is represented by the following formula (1): R １ O-[(AO) ｐ (EO) ｑ -R ２ (1) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average number of moles of addition of an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group, respectively, 1 ≤ p ≤ 70, 1 ≤ q ≤ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass, The oxyalkylene group and the oxyethylene group may be added in a block form or in a random form, R １ and R ２ may be the same or different and are each a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R １ and R ２ is 0.15 or less) The solid cosmetic according to claim 1, which is a compound represented by the formula:

3. The solid cosmetic according to claim 1 or 2, wherein the component (B2) is hydrogenated polyisobutene or polybutene.

4. The solid cosmetic according to claim 1 or 2, wherein the component (B3) is phytosteryl dimer dilinoleate / higher alcohol ester.

5. The solid cosmetic according to claim 1 or 2, wherein the component (B4) is an oily extract obtained from a plant of the Araceae family.

6. The solid cosmetic according to claim 1 or 2, wherein the component (B) is the component (B1).

7. The content of the component (A) and the component (B) is 5 to 20% by mass and 0.01 to 20% by mass, respectively, based on the total mass of the solid cosmetic. The oily solid cosmetic according to claim 1 or 2.

8. The solid cosmetic according to claim 1 or 2, further comprising a (D) coloring agent.

9. The solid cosmetic according to claim 1 or 2, further comprising a (E) powder.

10. The solid cosmetic according to claim 1 or 2, which is an oily solid cosmetic.

11. The solid cosmetic according to claim 1 or 2, which is a water-in-oil solid cosmetic.

12. The oily solid cosmetic according to claim 1 or 2, molded in a stick shape.

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