Solid powder cosmetics

Abstract

To provide a solid powder cosmetic that has a strong glitter feeling and excels in impact resistance and adhesiveness.SOLUTION: A solid powder cosmetic comprises following components (A)-(C): (A) luminescent powder with an average particle size of 80 μm or more; (B) oil-soluble polyurethane; and (C) liquid oil having an alkyl group with 7 or more carbon atoms, the content of the component (A) being 20-70 mass%.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a solid powder cosmetic. [Background technology]

[0002] In solid powder cosmetics, in order to achieve a strong glitter finish, a large amount of glitter powder with a large particle size so that the presence of each particle can be seen is generally blended. However, when such glitter powder with a large particle size is contained in a cosmetic base, compression molding is difficult, and molding defects tend to occur and impact resistance tends to be poor. In addition, glitter powder with a large particle size has poor adhesion to the skin and is prone to falling off due to skin movement, etc., resulting in poor cosmetic wear.

[0003] Disclosed methods for improving the impact resistance of solid powder cosmetics containing a large amount of glittering powder include a method of combining 60% by mass or more of glittering powder with a liquid oil and a solid oil having a specific polarity (Patent Document 1), a method of combining 30 to 90% by mass of glittering powder with 0.1 to 5% by mass of metal soap (Patent Document 2), and a method of combining 10 to 60% of glittering powder with polyether-modified silicone and / or polyglycerin-modified silicone and silicone oil (Patent Document 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-215822 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-280626 [Patent Document 3] Japanese Patent Application Publication No. 2017-119644 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology of Patent Document 1 could not suppress the foreign body sensation that is characteristic of glitter powders with large particle sizes when applied to the skin, and it was difficult to provide sufficient impact resistance. Furthermore, the technology of Patent Document 2 improved impact resistance, but had problems such as glitter powder easily falling off from the applied film and poor makeup wear. Furthermore, the technology of Patent Document 3 increased the slipperiness of cosmetics using silicone oil, so when glitter powders with large particle sizes were used, they were difficult to adhere to the skin, and the makeup wear was not sufficient.

[0006] An object of the present invention is to provide a solid powder cosmetic that has a strong glittery feel and is excellent in impact resistance and adhesion. [Means for solving the problem]

[0007] As a result of intensive research into solving the above problems, the present inventors discovered that by combining an oil-soluble polyurethane with a specific liquid oil and using this as a binder to produce a solid powder cosmetic, it is possible to improve the adhesion of large particle size glittering powders to the skin, resulting in excellent cosmetic wear and improved impact resistance, and thus completed the present invention.

[0008] That is, the present invention provides the following components (A) to (C): (A) Glittering powder with an average particle size of 80 μm or more (B) Oil-soluble polyurethane (C) An oil that is liquid at 25°C and has an alkyl group with 7 or more carbon atoms The solid powder cosmetic is characterized by containing the above, and the content of component (A) is 20 to 70 mass %. [Effects of the Invention]

[0009] The solid powder cosmetic of the present invention contains glittering powder with a large particle size, yet has good adhesion to the skin, so that it does not come off even when applied to areas of the skin that move a lot, such as the eyelids, and provides excellent cosmetic wear. Furthermore, even when a relatively large amount of glittering powder with a large particle size is blended, it is unlikely to feel like a foreign body upon application, and a coating film with a strong glittery feel is obtained without impairing the feel in use, and it also has excellent impact resistance and fill moldability, making it possible to prevent breakage during production and distribution. DETAILED DESCRIPTION OF THE INVENTION

[0010] In this specification, "%" means "% by mass" unless otherwise specified. When a numerical range is expressed using "to", the range is inclusive of both ends of the range.

[0011] The glittering powder of component (A) is not particularly limited as long as it is one that can be commonly used in cosmetics. Specific examples include titanium mica, bismuth oxychloride, organic pigment-treated titanium mica, titanium dioxide-coated mica, titanium dioxide-coated synthetic phlogopite, titanium dioxide-coated bismuth oxychloride, iron oxide titanium mica, Prussian blue-treated titanium mica, carmine-treated titanium mica, fish scale foil, glass powder such as titanium dioxide-coated glass powder, titanium oxide-coated synthetic phlogopite, glittering pigments such as polyethylene terephthalate-aluminum-epoxy laminated powder, polyethylene terephthalate-aluminum laminated powder, polyethylene terephthalate-polyolefin laminated film powder, and polyethylene terephthalate-polymethyl methacrylate laminated film powder, metal powders such as aluminum powder, gold powder, and silver powder, and composite powders such as fine particle titanium oxide-coated mica titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide. These powders may be used alone or in combination. Among these, preferred glitter pigments include glass powders such as titanium dioxide-coated glass powder, titanium dioxide-coated synthetic phlogopite, titanium oxide-coated synthetic phlogopite, and resin laminate powders such as polyethylene terephthalate-aluminum-epoxy laminate powder, polyethylene terephthalate-aluminum laminate powder, polyethylene terephthalate-polyolefin laminate film powder, and polyethylene terephthalate-polymethyl methacrylate laminate film powder. In the present invention, glitter powders having an average particle size of 80 μm or more are used. From the viewpoints of glitteriness and adhesion to skin, the average particle size of the glitter powder is preferably 80 μm to 200 μm, more preferably 100 to 150 μm. In this specification, the average particle size of a powder such as a glitter powder refers to a value measured by the following method. (Method for measuring average particle size) It is calculated from the particle diameters measured for 10 particles in an arbitrary field of view using a scanning electron microscope.

[0012] The content of component (A) in the solid powder cosmetic of the present invention is in the range of 20 to 70%, preferably 30 to 60%, and more preferably 40 to 50%, from the viewpoints of glitteriness and impact resistance.

[0013] The oil-soluble polyurethane (B) used in the present invention can be any polyurethane that is soluble in oily components, but is preferably one that is soluble in at least 1% of cetyl 2-ethylhexanoate at 30° C. The structure of the oil-soluble polyurethane is not particularly limited, but from the viewpoints of impact resistance, adhesion to the skin, etc., it is preferable that the polyurethane has a hydrophobic portion (b1) and a hydrophilic portion (b2).

[0014] The (b1) hydrophobic portion preferably contains a structural unit derived from an isocyanate compound, such as 1,6-hexamethylene diisocyanate, 1,3-bis(isocyanatomethyl)benzene, 1,3-bis(isocyanatomethyl)cyclohexane, 2,4-toluene diisocyanate, or 2,6-toluene diisocyanate. Of these, 1,6-hexamethylene diisocyanate is preferred.

[0015] Furthermore, from the viewpoints of impact resistance, adhesion to skin, etc., it is preferable that the (b1) hydrophobic portion further contains a structural unit derived from a hydrogenated polyolefin polyol. Examples of hydrogenated polyolefin polyols include hydrogenated polybutadiene polyols and hydrogenated polyisoprene polyols, and among these, hydrogenated polybutadiene diols are preferred.

[0016] From the viewpoints of impact resistance, adhesion to skin, etc., it is preferable that the (b1) hydrophobic portion further contains a structural unit derived from a dimer diol. Examples of dimer diols include dimer dilinoleyl alcohol and dimer dioleyl alcohol, with dimer dilinoleyl alcohol being preferred, and hydrogenated dimer dilinoleyl alcohol being particularly preferred.

[0017] The (b2) hydrophilic portion preferably contains a structural unit derived from a low molecular weight diol from the viewpoints of impact resistance, adhesion to the skin, etc. Examples of low molecular weight diols include ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, and diethylene glycol, with ethylene glycol and 1,4-butylene glycol being preferred.

[0018] Suitable embodiments of the oil-soluble polyurethane component (B) include the following (i) and (ii): In this specification, "terminal" means "both terminals". (i) (a) Hydrogenated polybutadiene with isocyanate groups at the ends and (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), (ii) (c) Hydrogenated polybutadiene having terminal hydroxyl groups, (d) Diisocyanate compound, and (b) HO-R 3 -OH(R in the formula 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond),

[0019] (a) is not particularly limited as long as it is a hydrogenated polybutadiene having an isocyanate group at its terminal, for example, a compound represented by the following general formula (1):

[0020] [ka]

[0021] (In the formula, R 1 , R 2 are each independently a C1-C6 alkylene group, n is an integer of 10 to 100, and n1 and n2 each independently represent 0 or 1.

[0022] R 1 , R 2are each independently the same or different and represent a C1 to C6 alkylene group, and the alkylene may be linear or branched. Examples of the C1 to C6 alkylene group include methylene, ethylene, n-propylene, n-butylene, n-pentylene, and n-hexylene. R 1 The alkylene group in R is preferably a C1 to C2 alkylene group. 2 The alkylene group is preferably a C5 to C6 alkylene group. The alkylene group is preferably linear. n represents an integer of 10 to 100, and more preferably, n is in the range of 15 to 55. n1 and n2 are each independently the same or different and represent 0 or 1.

[0023] There are various types of structures of the repeating unit "C4H8" in the hydrogenated polybutadiene portion (general formula (6) below) of general formula (1), as shown in the following general formulas (7a) to (7d).

[0024] [ka]

[0025] [ka]

[0026] The hydrogenated polybutadiene portion in the hydrogenated polybutadiene having an isocyanate group at its terminal may consist of only one type of repeating unit as exemplified above, or may contain two or more types of repeating units arranged regularly or randomly. The three-dimensional structures of the repeating units "C4H8" constituting the hydrogenated polybutadiene portion (general formula (6) above) of general formula (1) may be the same or different, and all structures of the hydrogenated polybutadiene portion represented by general formula (6) are encompassed by the present invention. An example of the hydrogenated polybutadiene having an isocyanate group at its terminal, represented by general formula (1), is a compound represented by the following general formula (2).

[0027] [ka]

[0028] (wherein, in the formula (2), n represents an integer of 10 to 100). The compound of general formula (2) is a hydrogenated polybutadiene having an isocyanate group at the end of the general formula (1), 1 is an ethylene group, R 2 corresponds to the case where n1=n2=1, where n1 is a hexamethylene group.

[0029] (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2 to C6 alkylene group which may have an ether bond), examples of the glycol represented by the formula (1) include ethylene glycol (HOCH2CH2OH), propylene glycol (HOCH2CH(OH)CH3), 1,3-butylene glycol (HOCH2CH2CH(OH)CH3), 1,4-butylene glycol (HOCH2CH2CH2CH2OH), and diethylene glycol (HOCH2CH2OCH2CH2OH, general formula (5) below).

[0030] [ka]

[0031] (c) Hydrogenated polybutadiene having terminal hydroxyl groups is not particularly limited, but examples thereof include compounds represented by the following general formula (3).

[0032] [ka]

[0033] (wherein n represents an integer of 10 to 100)

[0034] In the general formula (3), the hydrogenated polybutadiene moiety (general formula (6)) has the same meaning as above.

[0035] (d) Examples of diisocyanate compounds include 1,6-hexamethylene diisocyanate, 1,3-bis(isocyanatomethyl)benzene, 1,3-bis(isocyanatomethyl)cyclohexane, 2,4-toluene diisocyanate, and 2,6-toluene diisocyanate. Among these, 1,6-hexamethylene diisocyanate represented by the following general formula (4) is preferred.

[0036] [ka]

[0037] (i): (a) hydrogenated polybutadiene with isocyanate groups at the terminals and (b) HO-R 3 -OH(in the formula, R 3 When producing a polyurethane by polyaddition of a glycol represented by the formula (a):(b), where (a):(b) represents a linear or branched C2-C6 alkylene group which may have an ether bond, the molar ratio (a):(b) is preferably 1:4 to 4:1, more preferably 2:3 to 3:2, even more preferably 4:5 to 4:3, and still more preferably 9:10 to 10:9. In this case, the weight average molecular weight (Mw) of (a) is preferably 1,000 to 3,000.

[0038] (ii): (c) Hydrogenated polybutadiene having terminal hydroxyl groups, (d) Diisocyanate compound, and (b) HO-R 3 -OH(R in the formula 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), the molar ratio (c):(b) is preferably 1:4 to 4:1, more preferably 2:3 to 3:2, even more preferably 4:5 to 4:3, and still more preferably 9:10 to 10:9.

[0039] The weight average molecular weight (Mw) of the polyurethane obtained in (i) or (ii) is preferably 10,000 to 150,000, more preferably 15,000 to 130,000, and even more preferably 20,000 to 110,000.

[0040] The hydrophilic parts of the polyurethane (i) or (ii) associate with each other to form multiple ring-shaped clusters (clusters), and when the hydrophobic parts of the polyurethane come into contact with the liquid oil of component (C), which will be described later, it has a hydrophilic group associative thickening mechanism. Based on this mechanism, the three-dimensional structure is finely divided to form a transparent gel, and since the hydrophobic parts of the polyurethane are low-crystalline hydrocarbons, they impart flexibility and oil solubility, and it is thought that the polar groups of the hydrophilic parts of the polyurethane interact with each other to impart gelling and restoring power.

[0041] Examples of commercially available products of component (B) include Oilkemia 5S polymer (Rubrizol, INCI name: Tri(caprylic / capric)glyceryl, Polyurethane-79) and Oilkemia 5S CC polymer (Rubrizol, INCI name: Tri(caprylic / capric)glyceryl, Hydrogenated Polyolefin (C6-20), (HDI / Trimethylolhexyllactone) Crosspolymer).

[0042] The content of component (B) in the solid powder cosmetic of the present invention is not particularly limited, but from the viewpoints of impact resistance, adhesion to the skin, etc., it is preferably 0.1 to 6%, more preferably 0.5 to 3%.

[0043] In the present invention, component (C) is an oily agent that is liquid at 25°C and has an alkyl group containing 7 or more carbon atoms. When the alkyl group has 7 or more carbon atoms, a highly elastic gel can be formed when combined with component (B). From the viewpoint of impact resistance, etc., the number of carbon atoms in the alkyl group is preferably 7 to 40. As component (C) an oily agent that is liquid at 25°C and has an alkyl group containing 7 or more carbon atoms, any of hydrocarbon oils, ester oils, fatty acids, higher alcohols, etc., regardless of their origin (e.g., animal oil, vegetable oil, synthetic oil, etc.), can be used as long as it is liquid at 25°C and has an alkyl group containing 7 or more carbon atoms in its structure. However, from the viewpoint of impact resistance, adhesion to skin, etc., hydrocarbon oils and ester oils are preferred. Specific examples include hydrocarbon oils such as heavy liquid isoparaffin, light liquid isoparaffin, liquid paraffin, squalane, squalene, polybutene, and polyisobutene, jojoba oil, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, cetyl isooctanoate (cetyl 2-ethylhexanoate), isononyl isononanoate, isotridecyl isononanoate, tritridecyl trimellitate, isopropyl myristate, neopentyl glycol di-2-ethylhexanoate, pentaerythrityl tetraoctanoate, ethyl laurate, hexyl laurate, and 2-ethylhexyl methoxycinnamate. ester oils such as isopropyl palmitate, ethylhexyl palmitate, octyldodecyl myristate, glyceryl trioctanoate, polyglyceryl diisostearate, diglyceryl isostearate, diisostearyl malate, glyceryl tribehenate, pentaerythritol rosinate, neopentyl glycol dioctanoate, oleyl oleate, octyldodecyl oleate, decyl oleate, macadamia nut oil fatty acid phytosteryl, and caprylic / capric triglyceride; fatty acids such as isostearic acid and oleic acid; and higher alcohols such as oleyl alcohol and isostearyl alcohol, and these can be used alone or in combination.Among these, hydrocarbon oils such as liquid paraffin and squalane, and ester oils such as cetyl isooctanoate (cetyl 2-ethylhexanoate), tritridecyl trimellitate, diglyceryl isostearate, and diisostearyl malate are preferred from the viewpoints of filling moldability and impact resistance.

[0044] The content of component (C) in the solid powder cosmetic of the present invention is not particularly limited, but from the viewpoints of impact resistance, adhesion to the skin, etc., it is preferably 6 to 30%, more preferably 10 to 25%.

[0045] The above components (B) and (C) can be prepared by polymerizing (B) in the presence of (C) or by mixing (B) and (C) in advance to form a urethane gel containing (B) and (C), which can also be incorporated into the solid powder cosmetic of the present invention. For example, in component (C), (a) hydrogenated polybutadiene having isocyanate groups at its terminals and (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), and a polyaddition reaction is carried out to obtain a urethane gel containing the polyurethane (i) and (C). In addition, (c) hydrogenated polybutadiene with terminal hydroxyl groups, (b) HO-R 3 -OH(in the formula, R 3 represents a linear or branched C2-C6 alkylene group which may have an ether bond), and component (C), are charged and mixed uniformly, and then (d) a diisocyanate compound is added and reacted to obtain a urethane gel containing the polyurethane (ii) and (C).

[0046] From the viewpoints of impact resistance, packing moldability, etc., the solid powder cosmetic of the present invention preferably further contains component (D), a glittering powder having an average particle size of 60 μm or less. The type of component (D) can be the same as that of component (A) above. Meanwhile, the glittering powder of component (D) has an average particle size of 60 μm or less. From the viewpoints of impact resistance, packing moldability, etc., the average particle size of the glittering powder of component (D) is preferably 10 μm to 60 μm, more preferably 20 to 50 μm.

[0047] From the viewpoints of glitteriness, impact resistance, filling moldability, etc., the solid powder cosmetic of the present invention preferably further contains kaolin as component (E). Any kaolin commonly used in cosmetics can be used without particular limitation, but those with an average particle size of 0.01 to 20 μm are preferred, and 0.1 to 10 μm are more preferred. The content of component (E) is not particularly limited, but is, for example, preferably 2 to 30%, more preferably 4 to 20%.

[0048] In addition to the above-mentioned components (A) to (E), the solid powder cosmetic of the present invention may contain optional components commonly used in cosmetics, such as powders other than component (A), surfactants, UV absorbers, anti-fading agents, antioxidants, cosmetic ingredients, preservatives, and fragrances, as long as the effects of the present invention are not impaired.

[0049] Powders other than component (A) may be powders commonly used in cosmetics, and are not particularly limited in terms of shape (plate-like, needle-like, etc.), particle size (aerosol, fine particles, pigment-grade, etc.), particle structure (porous, non-porous, etc.), etc., including inorganic powders, organic powders, pigment powders, metal powders, composite powders, etc. Specific examples include white inorganic pigments such as titanium oxide, zinc oxide, cerium oxide, and barium sulfate; colored inorganic pigments such as iron oxide, carbon black, titanium-titanium oxide sintered product, chromium oxide, chromium hydroxide, Prussian blue, and ultramarine; white inorganic pigments such as muscovite, phlogopite, lepidolite, biotite, synthetic mica, sericite (sericite), synthetic sericite, silicon carbide, bentonite, smectite, aluminum oxide, magnesium oxide, zirconium oxide, antimony oxide, diatomaceous earth, aluminum silicate, aluminum magnesium metasilicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, and boron nitride; Examples of suitable materials include color extender powders, copolymer resins such as fluororesins and cellulose-based resins, organic low-molecular-weight powders such as zinc stearate and N-acylysine, natural organic powders such as silk powder, cellulose powder, and dextrin powder, organic pigment powders such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, and Yellow No. 401, as well as zirconium, barium, and aluminum lakes such as Red No. 3, Red No. 104, Red No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Green No. 3, and Blue No. 1, as well as metal powders such as aluminum powder, gold powder, and silver powder, and fibers such as polyester, rayon, and cellulose. These materials may be surface-treated with fluorine compounds, silicone oils, powders, oils, gelling agents, emulsion polymers, surfactants, and the like. These materials may be used alone or in combination, or may be combined.

[0050] As the surfactant, any surfactant that is commonly used in cosmetics can be used, including nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc.

[0051] Examples of ultraviolet absorbers include benzophenone-based, PABA-based, cinnamic acid-based, and salicylic acid-based absorbers, such as 4-tert-butyl-4'-methoxydibenzoylmethane, oxybenzone, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, diethylaminohydroxybenzoylhexyl benzoate, and bisethylhexyloxyphenol methoxyphenyl triazine.

[0052] Examples of antioxidants include tocopherol and ascorbic acid, examples of cosmetic ingredients include vitamins, anti-inflammatory agents, and herbal medicines, and examples of preservatives include paraoxybenzoic acid esters, phenoxyethanol, and 1,2-pentanediol.

[0053] The solid powder cosmetic of the present invention is a cosmetic base containing a powder as the main component, and an oily component, and optionally an aqueous component, a surfactant, etc. dispersed in the powder, which is then molded into a solid form. The solid powder cosmetic of the present invention can be produced by a commonly known method. For example, the following method can be mentioned. (Dry molding method) A cosmetic base in which components (A) to (C) and other optional ingredients are uniformly dispersed is filled into a container such as a metal dish or a resin dish, and compression molded. (Wet molding method) A cosmetic base in which components (A) to (C) and other optional ingredients are uniformly dispersed is mixed with a solvent such as water or ethanol to form a slurry, which is then filled and molded, and the solvent is then removed and molded. It is preferable to use a wet molding method for production, as this makes it easier to obtain the effects of the present invention more significantly.

[0054] As the solvent used in the wet molding method, both non-volatile and volatile solvents can be used, but volatile solvents with a boiling point of 260 ° C or less at normal pressure are preferred, specifically, as aqueous components, low-boiling alcohols such as water, ethanol, isopropyl alcohol, etc., as oily components, low-boiling hydrocarbon oils such as isododecane, isohexadecane, light liquid isoparaffin, etc., low-boiling chain or cyclic silicone oils such as low-polymerization dimethylpolysiloxane, methyltrimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, etc., low-boiling fluorine compounds such as low-boiling perfluoropolyether, etc., can be used alone or in combination of two or more kinds as a mixture, but in the present invention, aqueous components are preferred.These solvents can be removed by commonly known methods such as vacuum suction, heat drying, absorbing and removing using absorbents such as paper or nonwoven fabric when pressurized, or removing through a discharge hole provided on the press mold, etc. The amount of the solvent is preferably 50 to 150 parts by mass, more preferably 70 to 125 parts by mass, per 100 parts by mass of the cosmetic base.

[0055] The solid powder cosmetic of the present invention can be used for, but is not particularly limited to, body powder, foundation, blush, face powder, eye shadow, eye liner, eyebrow powder, etc., and is particularly suitable for use in eye shadow, etc. As a method of use, the cosmetic may be applied directly or with a small tool such as a finger, a puff, a sponge tip, or a brush. [Example]

[0056] The present invention will be explained in more detail below with reference to examples, but the present invention is not limited to the following examples.

[0057] Manufacturing Example 1 Preparation of polyurethane gel: A 3 L three-neck flask was charged with 899 parts of hydroxyl-terminated hydrogenated polybutadiene (molecular weight 2200), 2450 parts of cetyl 2-ethylhexanoate, and 128 parts of hexamethylene diisocyanate, and the mixture was mixed uniformly. While controlling the temperature at 60°C, 0.9 parts of dibutyltin dilaurate was added, and after stirring for 3 hours, 24 parts of ethylene glycol was added. After the addition was completed, the mixture was stirred at 80°C for 10 hours, and then 18 parts of ethanol was added to complete the reaction. The weight-average molecular weight of the polyurethane in the resulting polyurethane gel was 50,000 as determined by GPC measurement (polystyrene equivalent). 30 parts of the resulting gel were heated and dissolved with 70 parts of liquid paraffin at 85°C and cooled to 30°C. The load value of the gel obtained was 5 N when measured using a load measuring machine (manufactured by FUDOH) with a 2 cm diameter spherical adapter, 2 cm / min, and 10 mm penetration.

[0058] (Examples 1 to 17, Comparative Examples 1 to 9) Solid powder cosmetics were prepared according to the following manufacturing method using the formulations shown in Tables 1 to 3 below. The resulting solid powder cosmetics were evaluated using the following evaluation methods for the following evaluation items: glitter feel, absence of foreign body sensation upon application, adhesion of glitter powder, absence of glitter powder loss due to movement, impact resistance, and filling moldability. The results are also shown in Tables 1 to 3.

[0059] (Manufacturing method) (Examples 1 to 16, Comparative Examples 1 to 9) A. Mix ingredients (1) to (7), (18) to (20), and (22) to (24) uniformly. B. Heat ingredients (8) to (17) and (21) to 70°C and mix uniformly. B is added to CA to prepare a cosmetic base material, and 95 parts by mass of purified water and 5 parts by mass of ethanol are added to 100 parts by mass of the cosmetic base material, and the mixture is mixed and kneaded. D. 2 g of pressure is placed in a 2 cm x 2 cm metal dish, and four sheets of 0.02 mm thick cellulose paper are placed on the surface. Then, using a press, pressure is applied at 2 kgf / cm. 2 The purified water and ethanol were removed by pressing twice for 3 seconds at a pressure of 1000 kJ / min, and then the mixture was dried at 70°C for 8 hours to obtain a solid powder cosmetic. Example 17 A. Mix (1), (2), (18), (20), (22) to (24) uniformly. B. Heat 8, 12, and 21 to 70°C and mix evenly. Add B to CA and mix evenly. D. 2 g is filled into a metal dish container, and the pressure is 80 kgf / cm 2 The mixture was pressed under a pressure of 1000 to obtain a solid powder cosmetic.

[0060] (Evaluation items) B. Glittery feel B. No foreign body sensation when applied C. Adhesion of glittering powder (Evaluation method) A use test was conducted by a panel of 10 cosmetic evaluation specialists. Each panelist rated and scored the "glitter feeling," "absence of foreign body sensation upon application," and "adhesion of glitter powder" on a 5-point scale upon application using the following evaluation criteria. The average score was calculated from the total scores of all panelists, and a judgment was made according to the following criteria. (Evaluation criteria) (Rating): (Evaluation) 5: Very good 4: Good 3: Normal 2: Bad 1: Very bad (Judgment criteria) (Judgment): (Average score) ◎: More than 4 points ○: More than 3 points and 4 points or less △: More than 2 points and 3 points or less ×: 2 points or less

[0061] (Evaluation items) 2. No loss of glitter powder due to movement (Evaluation method) 10 mg of solid powder cosmetic was applied to an area of ​​2 cm x 2 cm on artificial leather (7 cm x 7 cm), and then one end of the artificial leather was fixed and moved 50 times with a displacement of 30 mm at a speed of 100 mm / s. The condition of the applied film after the movement was evaluated on a 4-point scale by a panel of 10 cosmetic evaluation experts according to the following evaluation criteria, and the average score of all panelists was judged according to the following criteria. (Evaluation criteria) (Rating): (Evaluation) 4: Almost no change 3: Slight cracks in the makeup film, glitter powder missing 2: The cosmetic film is cracked and the glitter powder is missing 1: Large cracks in the cosmetic film and missing glitter powder (Judgment criteria) (Average score of n=5): (Judgment) ◎: 3.5 or above 〇: 3.0 or more and less than 3.5 △: 2.0 or more and less than 3.0 ×: Less than 2.0

[0062] (Evaluation items) E. Impact resistance (Evaluation method) Six samples of each solid powder cosmetic product of the Examples and Comparative Examples were prepared, one sample was used as a standard, and five samples were placed in a metal dish and allowed to freely drop upright onto an acrylic plate from a height of 50 cm. The surface condition after the drop was observed and compared with that of the standard. Each eye shadow was given a score according to the following evaluation criteria, and the average score for the number of tests (N) = 5 was calculated and judged according to the following four-level evaluation criteria. (Evaluation criteria) (Score) :(Evaluation) 4: No change 3: There are slight cracks, but it does not affect usability. 2: Cracks and gaps 1: Large cracks and gaps (Judgment criteria) ◎: 3.5 or above 〇: 3.0 or more and less than 3.5 △: 2.0 or more and less than 3.0 ×: Less than 2.0

[0063] (Evaluation items) F. Filling and molding properties (Evaluation method) The solid powder cosmetics of the Examples and Comparative Examples were measured for needle penetration hardness (g / cm) using a rheometer (FUDOH Rheometer, manufactured by Rheotec Co., Ltd.). 2) was measured under the measurement conditions (needle diameter: 2 mm, speed: 1 cm / min, depth: 1 mm), the average value of the number of tests (N) = 3 was calculated, and the result was judged according to the following four-level judgment criteria. (Evaluation criteria) (Score) :(Evaluation) 4:500g / cm 2 End 3: 200g / cm 2 More than 400g / cm 2 less than 2:100g / cm 2 More than 200g / cm 2 less than 1:100g / cm 2 less than (Judgment criteria) ◎: 3.5 or above 〇: 3.0 or more and less than 3.5 △: 2.0 or more and less than 3.0 ×: Less than 2.0

[0064] [Table 1]

[0065] [Table 2]

[0066] [Table 3]

[0067] As can be seen from Tables 1 to 3, the solid powder cosmetics of Examples 1 to 17 were excellent in glitter feel, absence of foreign body sensation upon application, adhesion of the glitter powder, absence of loss of the glitter powder due to movement, impact resistance, and filling moldability. On the other hand, Comparative Example 1, which did not contain component (A), and Comparative Example 2, which used a glittering powder with an average particle size of 80 μm or less instead of component (A), did not provide a satisfactory glittery feel. Furthermore, Comparative Example 3, which did not contain component (B), was unable to maintain the cosmetic film when movement was applied, and the glittering powder was prone to chipping. Comparative Example 4, which used water-soluble polyurethane instead of component (B), did not provide satisfactory impact resistance or filling moldability. Furthermore, Comparative Example 5, which used dextrin palmitate, an oil-based gelling agent, instead of component (B), did not provide satisfactory adhesion or other properties. Comparative Examples 6 to 9, which used paste oil, solid oil, or silicone oil instead of component (C), tended to cause the glittering powder to feel like a foreign body when applied.

[0068] Example 18: Eyebrows Eyebrow creams were produced according to the following recipe and manufacturing method. (Component) (%) 1. Barium sulfate 1.0 2. Methyl parahydroxybenzoate 2.0 3. Kaolin 5.0 4. Bismuth oxychloride 1.0 5. Hemp cellulose 0.5 6. Yellow iron oxide 1.0 7. Black iron oxide 4.5 8. Red iron oxide 1.0 9. Mica remaining amount 10. Amino-modified silicone 1% treated mica 10.0 11. Titanium oxide coated synthetic phlogopite (average particle size 40 μm) 10.0 12. Titanium oxide coated glass powder (average particle size 120 μm) 30.0 13. Oil-soluble polyurethane*1 0.3 14. Liquid Paraffin 10.0 15. Tripropylene glycol 0.3 16. Hydrogenated castor oil 0.3 17. Ethanol 0.3 18. Acrylates Copolymer 1.0 19. Marituka Flower Extract 0.01 20. Tocopherol 0.1 21. Pentaerythrityl tetraethylhexanoate 8.0 22. (PEG-15 / Lauryl Dimethicone) Crosspolymer 2.0 *1 Oilkemia 5S CC polymer (Rubrizol, INCI name: Tri(caprylic / capric)glyceryl, hydrogenated polyolefin (C6-20), (HDI / trimethylolhexyllactone) crosspolymer) (Manufacturing method) A. Mix 1 to 13 uniformly. B. Heat 14 to 22 to 70°C and mix evenly. B is added to CA to prepare a cosmetic base material, and 95 parts by mass of purified water and 5 parts by mass of ethanol are added to 100 parts by mass of the cosmetic base material, and the mixture is mixed and kneaded. D. 2 g is filled into a 2 cm x 2 cm metal dish, and four sheets of 0.02 mm thick cellulose paper are placed on the surface. Then, using a press, 2 kgf / cm 2 The purified water and ethanol were removed by pressing twice for 3 seconds at a force of 1000 psi, and then the eyebrow pencil was dried at 70°C for 8 hours to obtain an eyebrow pencil. The eyebrow product obtained in this manner was satisfactory in all respects: glittery feel, absence of foreign body sensation when applied, adhesion of the glitter powder, absence of glitter powder loss due to movement, impact resistance, and filling moldability.

[0069] Example 19: Cheek color A cheek color was produced according to the following formulation and manufacturing method. (Component) (%) 1.Synthetic phlogopite 10.0 2. Kaolin 5.0 3. Red No. 226 0.5 4. Red No. 202 0.2 5. (PET / polymethyl methacrylate) laminated powder (average particle size 150 μm) 25.0 6. Red iron oxide 0.2 7. Talc 5.0 8. Mica remaining amount 9. Sericite 10.0 10.2% Dimethicone Surface-treated Synthetic Phlogopite 10.0 11. Boron nitride 5.0 12. Titanium mica (average particle size 40 μm) 8.0 13. Zinc Oxide 2.0 14. Methyl parahydroxybenzoate 0.1 15. Oil-soluble polyurethane*1 4.0 16. Sorbitan Sesquiisostearate 2.0 17. PEG-9 Polydimethylsiloxyethyl Dimethicone 0.2 18. Mineral oil 5.0 19. Vaseline 5.0 20. Dimethicone (6CS) 10.0 21. Dipropylene glycol 0.1 22. Jojoba oil 0.3 23. Lavender oil 0.3 24.Fragrance 0.2 (Manufacturing method) A. Mix 1 to 14 uniformly. B. Heat 15 to 24 to 70°C and mix evenly. Add B to CA and mix evenly. After crushing the DC, 20 g was placed in a metal dish and subjected to 200 kgf / cm 2 The cheek color was obtained by pressing and molding using the force of the powder. The cheek color obtained in this manner was satisfactory in all respects: glittery feel, absence of foreign body sensation upon application, adhesion of the glitter powder, absence of glitter powder loss due to movement, impact resistance, and filling moldability.

[0070] Example 20: Foundation A foundation was produced according to the following recipe and method. (Component) (%) 1. Yellow iron oxide treated with 3% stearoyl glutamic acid disodium 2 2. 0.8g of red iron oxide treated with 3% stearoyl glutamic acid disodium 3. Titanium oxide coated glass powder (average particle size: 120 μm) 20.0 4. Lauroyl Lysine 2.0 5. Amino-modified silicone 1% treated synthetic phlogopite 3.0 6. Zinc laurate 2% treated talc remaining 7. Titanium oxide coated synthetic phlogopite (average particle size: 45 μm) 3.0 8. Spherical Silica 2.0 9. Spherical (HDI / PPG / Polycaprolactone) Crosspolymer 3.0 10. Sodium dilauroyl glutamate lysine 2% treated titanium dioxide 1.0 11. Zinc Oxide 2.0 12. Ethylhexyl paramethoxycinnamate 6.0 13. Diethylaminohydroxybenzoylhexyl benzoate 3.0 14. Tripropylene glycol 0.5 15. Glyceryl tri-2-ethylhexanoate 8.0 16. Squalane 8.0 17. Meadowfoam Oil 5.0 18. Diethylhexyl succinate 1.0 19. Oil-soluble polyurethane*1 2.0 20. Hydrogenated Polybutene 2.0 21. Diphenylsiloxyphenyl Trimethicone 1.0 22. Dextrin palmitate 1.0 23. Sorbitan sesquiisostearate 0.2 24. Diisostearyl Malate 1.0 25. Sodium Hyaluronate 0.1 26. Tocopherol 0.1 27.1,3-butylene glycol 0.5 28. Glycerin 1.0 29.Purified water 1.0 (Manufacturing method) A. Mix 1 to 11 uniformly. B. Heat 12 to 24 to 70°C and mix evenly. C. Mix 25 to 29 uniformly. D. At 25°C, add B and C to A and mix evenly with a universal mixer. The ED was filled into a container using a filling machine with a screw feeder, and then press-molded with a flower-shaped relief to obtain a foundation. The foundation obtained in this manner was satisfactory in all respects: glitter feel, absence of foreign body sensation when applied, adhesion of the glitter powder, absence of glitter powder loss due to movement, impact resistance, and filling moldability.

[0071] Example 21: Face Powder A face powder was produced according to the following recipe and manufacturing method. (Component) (%) 1. Dimethicone-treated titanium oxide coated glass powder (average particle size 80 μm) 40.0 2. Kaolin 5.0 3. Cellulose spherical powder 5.0 4. Zinc Oxide 3.0 5. Hydrogen Dimethicone-treated Fine Titanium Dioxide 5.0 6. Yellow iron oxide 0.4 7. Black iron oxide 0.01 8. Mica remaining amount 9.2% surface coating synthetic phlogopite 20.0 10.5% surface coated sericite 5.0 11. Amino-modified silicone 3% treated mica 3.0 12. Oil-soluble polyurethane*1 1.0 13. Dipropylene glycol 0.3 14. Isotridecyl isononanoate 2.0 15. Liquid Paraffin 7.0 16.Fragrance 0.5 (Manufacturing method) A. Mix 1 to 11 uniformly. B. Mix 12 to 16 uniformly and dissolve. Add B to CA and mix evenly. The DC was pulverized and filled into a container to obtain a face powder. The face powder obtained in this manner was satisfactory in all respects: glittery feel, absence of foreign body sensation when applied, adhesion of the glitter powder, absence of glitter powder loss due to movement, impact resistance, and filling moldability. [Industrial Applicability]

[0072] The solid powder cosmetic of the present invention contains glittering powder with a large particle size, yet has excellent adhesion to the skin, impact resistance, etc., and has a good feel when used, and therefore can be suitably used as an eye shadow or the like that imparts a strong glitter feel.

Claims

1. The following components (A) to (C): (A) Glittering powder with an average particle size of 80 μm to 200 μm (B) Oil-soluble polyurethane (C) An oil agent that is liquid at 25°C and has an alkyl group having 7 or more carbon atoms wherein the content of component (A) is 20 to 70% by mass, and the solid powder cosmetic is obtained by adding an aqueous component to a composition containing components (A) to (C) to form a slurry, filling the slurry into a container, and then removing the aqueous component.

2. 2. The solid powder cosmetic preparation according to claim 1, wherein the component (B) is a polyurethane having a hydrophobic portion (b1) and a hydrophilic portion (b2), wherein the hydrophobic portion (b1) contains a structural unit derived from an isocyanate compound, and the hydrophilic portion (b2) contains a structural unit derived from a low-molecular-weight diol.

3. 3. The solid powder cosmetic according to claim 2, wherein the isocyanate compound is hexamethylene diisocyanate.

4. 4. The solid powder cosmetic preparation according to claim 2, wherein the hydrophobic portion (b1) of the component (B) further contains a structural unit derived from a hydrogenated polyolefin polyol.

5. 3. The solid powder cosmetic according to claim 2, wherein the low molecular weight diol is 1,4-butanediol or ethylene glycol.

6. 6. The solid powder cosmetic according to claim 1, wherein the component (C) is a hydrocarbon oil or an ester oil.

7. 7. The solid powder cosmetic according to claim 1, wherein the content of said component (B) is 0.5 to 6% by mass.

8. 8. The solid powder cosmetic preparation according to claim 1, wherein the content of said component (C) is 6 to 30% by mass.

9. 9. The solid powder cosmetic according to claim 1, further comprising component (D) a glittering powder with an average particle size of 60 μm or less.

10. The solid powder cosmetic preparation according to any one of claims 1 to 9, further comprising component (E) kaolin.

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