Solid powder cosmetic

Abstract

Provided are: a solid powder cosmetic which has a matte feeling, does not have any color difference in appearance before and after use, and has excellent filling moldability and good access properties; and a method for producing the solid powder cosmetic. A solid powder cosmetic which is obtained by adding a solvent to a cosmetic base containing the following components (A) and (B): (A) a non-bright powder obtained by covering (a-2) a plate-like powder with (a-1) a colored iron oxide, (B) a non-volatile oil, (a-1) a colored iron oxide, (a-2) a colored iron oxide, (a-1) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, (a-2) a colored iron oxide, the solid powder cosmetic does not contain colored iron oxide which is not covered on the powder component or the content of the iron oxide relative to the total amount of the cosmetic is less than 15 mass%, and the solid powder cosmetic does not contain bright powder or the content of the bright powder relative to the total amount of the cosmetic is less than 15 mass%. And the content mass ratio (a-1) of the (a-1) to the colored iron oxide that is not covered with the powder component, namely (a-1): (the colored iron oxide that is not covered with the powder component) is 100: 0-20: 80.

Description

Technical Field

[0001] The present invention relates to solid powder cosmetics and a method for manufacturing the same. Background Art

[0002] Solid powder cosmetics are composed of a powder component and an oily component, and are used in makeup cosmetics such as eyeshadow, blush, and foundation. Generally, known methods for molding solid powder cosmetics are a dry method and a wet method. In the dry method, the powder component and the oily component are mixed, filled into a mold, and pressed and molded. In the wet method, a solvent is mixed into the powder component and the oily component to form a slurry, and after the obtained slurry is filled into a mold and pressed, the solvent is dried and removed to form a molded product. In solid powder cosmetics using the wet method, a soft and moist feeling in use is obtained. On the other hand, due to the difference in the orientation of the powder on the pressed surface and inside of the cosmetics, there may sometimes be a difference in the appearance color before and after use.

[0003] To solve such problems, for example, the following solutions have been proposed: a solid powder cosmetic characterized by being a solid powder cosmetic containing silica having an oil absorption of 100 ml / 100 g or more and a colored pigment, the solid powder cosmetic being manufactured by adding a volatile solvent to the powder cosmetic to form a slurry, and then filling the slurry into a container and removing the aforementioned solvent (Patent Document 1); a solid powder cosmetic in which, based on the total amount of the solid powder cosmetic, the contents of the powder component and the oily component are 70 to 95% by mass and 5 to 30% by mass, respectively, and the oily component contains hydrogenated castor oil fatty acid ester and heavy liquid isoparaffin (Patent Document 2); etc.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2011-105626

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2019-119716 Summary of the Invention

[0008] However, in the case of using the above technologies, in solid powder cosmetics having a matte appearance, the filling moldability and the good pick-up property (when a user picks up the cosmetics with a finger, an application tool, etc., the cosmetics adhering to the finger, the application tool, etc. become appropriate) are sometimes poor.

[0009] Therefore, an object of the present invention is to provide: solid powder cosmetics and a method for manufacturing the same that have no color difference in appearance before and after use, or have little color difference in appearance, and in addition, have excellent matte feeling, filling moldability, and good pick-up property.

[0010] The inventors of the present invention conducted in-depth research and found that: in solid powder cosmetics using the wet method, by combining a non-glossy powder obtained by covering a colored iron oxide on a plate-shaped powder and a non-volatile oil agent, a solid powder cosmetic with excellent matte feeling, no color difference in appearance before and after use, filling and molding properties, and pick-up properties was obtained, and the present invention was completed.

[0011] That is, the present invention provides the following. [1]

[0013] A solid powder cosmetic, which is obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B):

[0014] (A) A non-glossy powder obtained by covering (a-1) a colored iron oxide on (a-2) a plate-shaped powder,

[0015] (B) A non-volatile oil,

[0016] The solid powder cosmetic does not contain a colored iron oxide that is not covered on the powder component, or the content of the iron oxide relative to the total amount of the cosmetic is 15% by mass or less,

[0017] The solid powder cosmetic does not contain a glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less,

[0018] The mass ratio of the aforementioned (a-1) to the colored iron oxide that is not covered on the powder component (a-1): (colored iron oxide not covered on the powder component) is 100:0 to 20:80. [2]

[0020] The solid powder cosmetic according to [1], wherein the aforementioned (a-2) is one or more selected from mica and synthetic fluorophlogopite. [3]

[0022] The solid powder cosmetic according to [1] or [2], wherein the glossy powder is substantially not contained, or the content of the glossy powder relative to the total amount of the cosmetic is 5% or less. [4]

[0024] The solid powder cosmetic according to [1] or [2], wherein the aforementioned component (B) is one or more selected from the group consisting of hydrocarbon oils, silicone oils, and ester oils. [5]

[0026] A method for manufacturing a solid powder cosmetic, which is a method for manufacturing a solid powder cosmetic obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B):

[0027] (A) A non-glossy powder obtained by covering (a-1) colored iron oxides on (a-2) plate-shaped powder

[0028] (B) A non-volatile oil

[0029] The solid powder cosmetic does not contain colored iron oxides that are not covered on the powder components, or the content of the iron oxides relative to the total amount of the cosmetic is 15% by mass or less.

[0030] The solid powder cosmetic does not contain glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less.

[0031] The mass ratio of the aforementioned (a-1) to the colored iron oxides that are not covered on the powder components (a-1): (colored iron oxides that are not covered on the powder components) is 100:0 to 20:80.

[0032] One embodiment of the present invention is a solid powder cosmetic, which is a solid powder cosmetic obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B):

[0033] (A) A non-glossy powder obtained by covering (a-1) iron oxide red and / or iron oxide yellow on (a-2) plate-shaped powder

[0034] (B) A non-volatile oil

[0035] The solid powder cosmetic does not contain iron oxide red and / or iron oxide yellow that are not covered on the powder components, or the content of the iron oxides relative to the total amount of the cosmetic is 15% by mass or less.

[0036] The solid powder cosmetic does not contain glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less. The mass ratio of the aforementioned (a-1) to the iron oxide red and / or iron oxide yellow that are not covered on the powder components (a-1): (iron oxide red and / or iron oxide yellow that are not covered on the powder components) is 100:0 to 20:80.

[0037] Another embodiment of the present invention is a solid powder cosmetic, which is a solid powder cosmetic obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B):

[0038] (A) A non-glossy powder obtained by covering (a-1) iron oxide red and / or iron oxide yellow on (a-2) synthetic fluorophlogopite,

[0039] (B) A non-volatile oil,

[0040] The solid powder cosmetic does not contain iron oxide red and / or iron oxide yellow (wherein component (A) is excluded), or the content of this iron oxide type (iron oxide red and / or iron oxide yellow) relative to the total amount of the cosmetic is 15% by mass or less.

[0041] The solid powder cosmetic does not contain a glossy powder or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less. The mass ratio of the aforementioned (a-1) to the iron oxide red and / or iron oxide yellow not covered on the powder component is 100:0 to 20:80. Detailed implementation manners

[0042] Hereinafter, the implementation manners of the present invention will be described. It should be noted that the present invention is not limited to the following implementation manners. In this specification, "X to Y" representing a range means "X or more and Y or less" including X and Y. It should be noted that in this specification, the percentage (%) is based on mass unless otherwise specified. In addition, in this specification, when the content of a certain component is described, when there are two or more of such components, it means the total amount thereof.

[0043] The solid powder cosmetic of the present invention has excellent matte feeling, no appearance color difference before and after use (hereinafter, also simply referred to as no appearance color difference), filling and molding property, and pick-up property.

[0044] When providing a cosmetic having saturation, colored bright powders can be used. However, due to their brightness, when trying to give the cosmetic a matte finish, their blending amount is restricted. Also, when providing a cosmetic having saturation in the same way, iron oxides having saturation can be used. However, in a solid powder cosmetic formed by wet molding, if such iron oxides are directly used, there is a significant difference in appearance before and after use, and also the moldability is insufficient (Comparative Example 2 described later). As the reason, the inventors presume that it is because of the manufacturing method derived from the wet process, and the orientation of the pressed surface of the cosmetic and the powder inside becomes different by blending iron oxides. The inventors have found such a problem, and as a solution, they have found that by using a non-bright powder obtained by covering a colored iron oxide on a plate-like powder as the main component in a colored iron oxide for a wet process (a method of adding a solvent to a cosmetic base to form a slurry, filling it into a container, and then removing the solvent to obtain a solid powder cosmetic), and also by minimizing the content of bright powders, the above effects can be achieved.

[0045] Hereinafter, each component of the present invention will be described.

[0046] (Component (A); a non-bright powder obtained by covering (a-1) a colored iron oxide on (a-2) a plate-like powder)

[0047] Component (A) in the present invention is a non-bright powder obtained by covering (a-1) a colored iron oxide on (a-2) a plate-like powder.

[0048] The non-bright powder used in the present invention refers to a powder without brightness, and the presence or absence of brightness is measured by the following colorimetric method. Using a gloss meter GlossMeter VG7000 (manufactured by Nippon Denshoku Industries Co., Ltd.), 10 mg of a bright powder is uniformly coated on a black artificial skin film measuring longitudinally 10 cm × transversely 6 cm to form a powder coating film, which is placed on the sample stage, and the glossiness at an incident angle of 60° and a measurement angle of 60° is measured and defined as follows.

[0049] The glossiness at a measurement angle of 60° is 3 or more: having brightness

[0050] The glossiness at a measurement angle of 60° is less than 3: without brightness

[0051] The non-bright powder preferably has a glossiness of 0 to 2.5.

[0052] The above-mentioned (a-1) is not particularly limited as long as it is a colored iron oxide used in ordinary cosmetics. "Colored" refers to a color with saturation, preferably a color having hue, lightness, and saturation. Having saturation means a color whose saturation does not substantially become 0. Here, for saturation, for example, the colorimetric value C* (saturation) of the color value defined in the CIE1976L*a*b* colorimetric system can be measured using a spectrophotometer SE7700 (manufactured by Nippon Denshoku Industries Co., Ltd.). For example, as the colored iron oxide, iron oxide red (Indian red), iron oxide yellow, etc. can be cited.

[0053] It should be noted that the component (A) can be in a form where only (a-1) covers the (a-2) plate-shaped powder (i.e., the covering powder is only the component (a-1)). The component (A) can also be in a form composed of the (a-2) plate-shaped powder and the (a-1) colored iron oxide. By being in such a form, it is easy to obtain the effects of the present invention such as no appearance color difference before and after use, so it is preferred.

[0054] The above-mentioned (a-2) is a plate-shaped powder. The plate-shaped powder refers to a powder whose average particle diameter is larger than the average thickness. Specifically, the aspect ratio is preferably 3 or more, and it can be 3 to 1000, and can be 5 to 100. The aspect ratio is calculated from the ratio of the average particle diameter to the average thickness of the particle, and is defined as aspect ratio = (average particle diameter / average thickness). It should be noted that the average particle diameter is calculated as follows: Using a scanning electron microscope, for 10 particles in an arbitrary field of view, the particle diameter (maximum diameter) is observed, and the result is calculated from the obtained result. In addition, the particle thickness is obtained in the same way, and the aspect ratio is calculated by dividing the particle diameter by the thickness.

[0055] The average particle diameter of (a-2) is, for example, 3 to 30 μm.

[0056] (a-2) is not particularly limited as long as it is a plate-like powder usually used in cosmetics. For example, it can include: extender pigments such as mica, sericite, synthetic fluorophlogopite, synthetic sericite, aluminum silicate, magnesium silicate, aluminum magnesium silicate, cleavage talc powder, plate-like silica anhydride, plate-like alumina, plate-like kaolin, plate-like boron nitride, plate-like titanium dioxide, plate-like cellulose, etc.; resin laminated powders such as mica titanate, bismuth oxychloride, fish scale foil, polyethylene terephthalate / aluminum / epoxy resin laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, etc. One of these can be used, or two or more can be used in combination. Among these, (a-2) is preferably mica and / or synthetic fluorophlogopite, and more preferably synthetic fluorophlogopite. It should be noted that what is used in this application is a "non-glossy powder" obtained by covering (a-2) plate-like powder with (a-1) colored iron oxide, which is different from synthetic fluorophlogopite covered with iron oxide such as a so-called pearlescent agent (glossy powder). Moreover, the component (A) of the present invention is a non-glossy powder obtained by covering (a-2) plate-like powder with (a-1) colored iron oxide.

[0057] In addition, as long as the component (A) is non-glossy, (a-2) can be glossy, but (a-2) is also preferably non-glossy.

[0058] The covering amount of the aforementioned (a-1) relative to the total amount of the aforementioned component (A) is not particularly limited, and is preferably 10 to 80%, more preferably 15 to 60%.

[0059] The method of covering the plate-like powder with iron oxide must be carried out in such a way that the obtained powder becomes non-glossy. For example, by covering (a-2) plate-like powder in such a way that (a-1) colored iron oxide with a larger particle size (for example, an average particle size of 40 to 400 nm, preferably 70 to 250 nm, more preferably more than 100 nm and 250 nm or less) is obtained, non-glossiness can be formed through the light scattering effect based on the covering of (a-1). Examples of the method of covering iron oxide include: a method of adding a water-soluble metal salt such as ferric chloride to an aqueous suspension of plate-like powder, performing neutralization decomposition to precipitate hydrated iron oxide and then calcining; a method of spray-drying a dispersion of plate-like powder and iron oxide powder using the electrostatic force between the plate-like powder and the iron oxide powder in a spray dryer; etc. Through these methods, by appropriately setting reaction conditions (reaction time, reaction temperature, etc.) in such a way that non-glossiness is achieved, non-glossy powder can be obtained. As the component (A), commercially available products can also be used. Examples of commercially available products include NK-Red, NK-Yellow (both manufactured by Nippon Koken Kogyo Co., Ltd.), etc.

[0060] As the component (A), in terms of further eliminating the appearance color difference before and after use, it is also suitable to use a combination of synthetic fluorophlogopite coated with iron oxide red and synthetic fluorophlogopite coated with iron oxide yellow. When using a combination of synthetic fluorophlogopite coated with iron oxide red and synthetic fluorophlogopite coated with iron oxide yellow, the compounding mass ratio of the two components is, for example, synthetic fluorophlogopite coated with iron oxide red:synthetic fluorophlogopite coated with iron oxide yellow = 1:0.1 to 1:10, and can also be 1:0.5 to 1:5.

[0061] The average particle size of the component (A) is, for example, 3 to 30 μm.

[0062] The content of the aforementioned component (A) in the cosmetic (when there are two or more types of component (A), it is the total amount) is not particularly limited. From the viewpoints of no appearance color difference, moldability, ease of taking, etc., as the lower limit value, it is preferably 5% or more, more preferably 10% or more, further preferably 15% or more, further preferably 20% or more, and particularly preferably 25% or more. As the upper limit value, it is preferably 90% or less, more preferably 80% or less, further more preferably 70% or less, and can also be 60% or less, 50% or less, or 45% or less.

[0063] (Component (B): non-volatile oil)

[0064] By compounding the component (B), the moldability in the system of the compounded component (A) is improved. It should be noted that in this specification, the volatile oil agent refers to an oily component that has a boiling point of 260°C or lower under normal pressure and is liquid and has fluidity at normal temperature (25°C), and the non-volatile oil refers to an oil agent other than this.

[0065] Component (B) in the present invention may be any non-volatile oil agent commonly used in cosmetics, and can be used regardless of the origin such as animal oil, vegetable oil, synthetic oil, etc., and the properties such as solid oil, semi-solid oil, liquid oil, etc. For example, hydrocarbons, oils and fats, ester oils, fatty acids, higher alcohols, silicone oils, fluorine-based oils, lanolin derivatives, etc. can be cited. Specifically, for example, liquid paraffin, squalane, petrolatum, polybutene, hydrogenated polyisobutene (heavy liquid isoparaffin), paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene / propylene copolymer, lignite wax, Fischer-Tropsch wax, etc. hydrocarbons, Japanese lacquer wax, olive fruit oil, castor seed oil, mink oil, macadamia nut oil, etc. oils and fats, beeswax, carnauba wax, candelilla wax, cetyl wax, etc. waxes, triglyceride (ethylhexanoate), cetyl isooctanoate, isopropyl myristate, isopropyl palmitate, diisostearyl malate, octyldodecyl myristate, cetyl alcohol 2-ethylhexanoate, triglyceride octanoate, neopentyl glycol di(ethylhexanoate), cholesteryl fatty acid ester, dipentaerythritol fatty acid ester, cholesteryl / behenyl / octyldodecanol lauroyl glutamate, jojoba seed oil, etc. ester oils, stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, etc. fatty acids, stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, etc. higher alcohols, (high degree of polymerization) dimethylpolysiloxane (polydimethylsiloxane, methylpolysiloxane), methylphenylpolysiloxane, partially crosslinked organopolysiloxane, fluorine-modified polysiloxane, etc. polysiloxanes, perfluorodecane, perfluorooctane, perfluoropolysiloxane, etc. fluorine-based oil agents, lanolin, acetylated lanolin, isopropyl lanolate, lanolin alcohol, etc. lanolin derivatives, dextrin fatty acid ester, sucrose fatty acid ester, 12-hydroxystearic acid, starch fatty acid ester, aluminum isostearate, calcium stearate, etc. oil gelling agents, etc. Component (B) may be used alone as 1 kind, or may be used in combination of 2 or more kinds. Among these, from the viewpoints of moldability, ease of handling, etc., component (B) is preferably at least 1 kind selected from the group consisting of hydrocarbon oil, ester oil and silicone oil, more preferably contains at least ester oil and / or silicone oil, and for the aspects of moldability and ease of handling, component (B) is further more preferably contains at least ester oil and silicone oil, and further preferably contains silicone oil and diisostearyl malate, and particularly preferably contains silicone oil and diisostearyl malate with a kinematic viscosity at 25°C of 8 mm 2 / s or more and less than 20 mm 2 / s. When containing ester oil and silicone oil, the mass ratio of content is, for example, 1:0.1 to 1:10, and may also be 1:0.5 to 1:5.

[0066] The aforementioned ester oil is not particularly limited. From the viewpoint of moldability and the like, it preferably contains at least one selected from the group consisting of triglyceride (ethylhexanoate), cetyl isooctanoate, isopropyl myristate, isopropyl palmitate, diisostearyl malate, octyldodecyl myristate, cetyl alcohol 2-ethylhexanoate, triglyceride caprylate, and neopentyl glycol di(ethylhexanoate), and more preferably contains diisostearyl malate and / or cetyl alcohol 2-ethylhexanoate.

[0067] The kinematic viscosity of the aforementioned silicone oil at 25 °C is not particularly limited, and preferably 4 to 50 mm 2 / s, more preferably 6 to 30 mm 2 / s, and even more preferably 8 to 25 mm 2 / s. Further, from the aspects of moldability and ease of handling, component (B) is further preferably at least composed of a silicone oil having a kinematic viscosity of 8 mm 2 / s or more and less than 20 mm 2 / s. In addition, as the silicone oil, it is preferably at least composed of dimethylpolysiloxane, and it may also be only dimethylpolysiloxane.

[0068] The content of the aforementioned component (B) in the cosmetic (when there are two or more types of component (B), it is the total amount) is not particularly limited. For example, as the lower limit value, it is 3% or more, and it may also be 5% or more. From the viewpoints of moldability, ease of handling, etc., as the lower limit value, it is preferably 15% or more, more preferably 18% or more, and as the upper limit value, it is preferably 40% or less, more preferably 30% or less. In addition, the content of component (B) in the cosmetic is preferably 15 to 40%, more preferably 18 to 30%. It should be noted that as component (B), it does not include the oil agent used as a surface treatment agent for powders.

[0069] The solid powder cosmetic of the present invention does not contain colored iron oxides that are not covered on the powder component or the content of the iron oxides in the cosmetic (when there are two or more types of the iron oxides, it is the total amount) is 15% or less. By not containing colored iron oxides that are not covered on the powder component or the content of the iron oxides in the cosmetic being 15% or less, effects are exerted in terms of no appearance color difference before and after use and moldability. Preferably, the solid powder cosmetic does not contain colored iron oxides that are not covered on the powder component or the content of the iron oxides in the cosmetic is 10% by mass or less, 5% by mass or less, 3% by mass or less, 1% by mass or less, 0.5% by mass or less, or 0.1% by mass or less.

[0070] The colored iron oxides in the solid powder cosmetic of the present invention that are not covered by the powder component refer to: iron oxides incorporated in the cosmetic in a state not covered by the powder component. The powder component in the colored iron oxides not covered by the powder component is not limited to the plate-like powder in the above (a-2). The colored iron oxides not covered by the powder component are preferably monomeric colored iron oxides (i.e., do not form a composite powder with other powders), and more preferably iron oxide red and / or iron oxide yellow. It is preferred that the iron oxides are not contained or the content of the iron oxides in the cosmetic is 5% or less, and still more preferably the iron oxides are not contained. One embodiment of the solid powder cosmetic of the present invention is as follows: it does not contain iron oxide red and / or iron oxide yellow (where component (A) is excluded) or the content of the iron oxides relative to the total amount of the cosmetic is 15% by mass or less, 10% by mass or less, 5% by mass or less, 3% by mass or less, 1% by mass or less, 0.5% by mass or less, or 0.1% by mass or less.

[0071] One suitable embodiment of the present invention is as follows: it does not contain iron oxides not covered by the powder component or the content of the iron oxides in the cosmetic is 15% or less. In this case, it becomes even more difficult to generate an appearance color difference. The iron oxides in the solid powder cosmetic of the present invention that are not covered by the powder component refer to iron oxides incorporated in the cosmetic in a state not covered by the powder component. The powder component in the iron oxides not covered by the powder component is not limited to the plate-like powder in the above (a-2). The iron oxides not covered by the powder component are preferably monomeric iron oxides (i.e., do not form a composite powder with other powders). It is preferred that the iron oxides are not contained or the content of the iron oxides in the cosmetic is 5% or less, and still more preferably the iron oxides are not contained. One embodiment of the solid powder cosmetic of the present invention is as follows: it does not contain iron oxide red monomer, iron oxide yellow monomer, and iron oxide black monomer, or the content of the iron oxides relative to the total amount of the cosmetic (total amount) is 15% by mass or less, 10% by mass or less, 5% by mass or less, 3% by mass or less, 1% by mass or less, 0.5% by mass or less, or 0.1% by mass or less.

[0072] For the solid powder cosmetic of the present invention, the mass ratio of the aforementioned (a-1) to the aforementioned colored iron oxides not covered by the powder component (a-1): (colored iron oxides not covered by the powder component) is 100:0 to 20:80. However, from the viewpoints of no appearance color difference, moldability, ease of taking, etc., it is more preferably 100:0 to 50:50, 100:0 to 60:40, 100:0 to 70:30, 100:0 to 80:20, or 100:0 to 90:10.

[0073] The solid powder cosmetic of the present invention does not contain a brightening powder or the content of the brightening powder in the cosmetic is 15% by mass or less. From the viewpoints of no appearance color difference, moldability, ease of taking, etc., it is preferably not to contain a brightening powder or the content of the brightening powder in the cosmetic is 5% by mass or less, 3% by mass or less, 1% by mass or less, 0.5% by mass or less, or 0.1% by mass or less, and more preferably not to contain the brightening powder (the content of the brightening powder is 0% by mass). The brightening powder refers to a powder having brightness. Specifically, it refers to a powder having brightness measured by the above colorimetric method.

[0074] The above-mentioned brightening powder is not particularly limited as long as it is a powder having brightness. Specifically, for example, it can include: mica coated with titanium dioxide, synthetic fluorophlogopite coated with titanium dioxide, mica titania coated with iron oxide black, mica titania coated with iron oxide / iron oxide black, mica titania coated with ammonium ferrocyanide, mica titania coated with carmine, mica titania coated with carmine / ammonium ferrocyanide, mica titania coated with iron oxide / carmine, mica titania coated with iron oxide / ammonium ferrocyanide, mica titania coated with an organic pigment, mica titania coated with a metal powder, synthetic fluorophlogopite coated with a metal powder, glass powder, glass flakes coated with titanium dioxide, glass powder coated with a metal powder, aluminum flakes, alumina flakes coated with titanium dioxide, silica flakes coated with titanium dioxide, aluminum coated with iron oxide / silica, polyethylene terephthalate / aluminum / epoxy resin laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, goniochromatic luster pigment, fish scale foil, gold powder, calcium aluminoborosilicate / titanium dioxide / tin oxide, synthetic fluorophlogopite / titanium dioxide / tin oxide, and silver powder, etc.

[0075] The solid powder cosmetic of the present invention can also use iron oxide black for color adjustment. When combining iron oxide black, it is preferably to use iron oxide black monomer (that is, not a composite powder with other powders).

[0076] The manner in which the solid powder cosmetic of the present invention contains a surfactant is also preferable. As the surfactant, any surfactant commonly used in cosmetics may be used, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and the like. Among them, from the viewpoint of the effects of the present invention, nonionic surfactants are preferably used. Examples of nonionic surfactants include glycerol fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, fatty alcohol ethoxylates, polyoxyethylene alkyl phenyl ethers, alkyl glucosides, and the like, and one or more of them may be used. Among them, nonionic surfactants having an HLB of 3 or more and 7 or less, or 3 or more and 6 or less are preferably used. Examples of such surfactants include glyceryl myristate (HLB value: 3.5), glyceryl monostearate (HLB value: 4.0), sorbitan sesquistearate (HLB 4.0), sorbitan sesquiisostearate (HLB 4.0), sorbitan monooleate (HLB 4.3), diglyceryl monostearate (HLB value: 5.0), diglyceryl monooleate (HLB value: 6.5), diglyceryl dioleate (HLB value: 7.0), diglyceryl monoisostearate (HLB value: 5.5), tetraglyceryl monostearate (HLB value: 6.0), tetraglyceryl monooleate (HLB value: 6.0), POE(5) glyceryl triisostearate (HLB value: 3.0), POE(10) glyceryl triisostearate (HLB value: 5.0), POE(20) glyceryl triisostearate (HLB value: 8.0), POE(5) decyltetradecyl ether (HLB value: 6.0), and POE(5) cholesteryl ether (HLB value: 7.0).

[0077] In the solid powder cosmetic of the present invention, to the extent that the effects of the present invention are not impaired, various components other than the essential components may be appropriately contained as needed, such as powders other than component (A), surfactants, aqueous components, water-soluble polymers, solid ultraviolet absorbers, humectants, anti-fading agents, antioxidants, defoaming agents, beauty components, preservatives, food flavorings, etc. to impart various effects. There is no particular limitation, and as a corrective material in the solid powder cosmetic (a material other than the above component (A) and other functional materials for imparting a makeup effect), talc, sericite, and their surface-treated powders can be used. These corrective materials are, for example, 20 to 90% in the solid powder cosmetic, and may be 30 to 80%.

[0078] As the aqueous component, any of water and components soluble in water may be used, and examples thereof include: glycols such as propylene glycol, 1,3-butanediol, dipropylene glycol, polyethylene glycol; glycerols such as glycerin, diglycerol, polyglycerol; plant extracts such as aloe vera, witch hazel, hamamelis virginiana, cucumber, lemon, lavender, rose. In the present invention, in order not to impair the obtained effects, the content of the aqueous component in the solid powder cosmetic is more preferably 20% or less, 15% or less, 10% or less, 5% or less, 3% or less, or 1% or less.

[0079] As the water-soluble polymer, it may contain: natural water-soluble polymers such as guar gum, sodium chondroitin sulfate, sodium hyaluronate, gum arabic, sodium alginate, carrageenan, glucosaminoglycan, collagen, elastin, keratin; semi-synthetic water-soluble polymers such as methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose; synthetic water-soluble polymers such as carboxyvinyl polymer, polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate.

[0080] As the solid ultraviolet absorber, examples include: benzophenone-based, p-aminobenzoic acid-based, 4-tert-butyl-4'-methoxydibenzoylmethane, benzophenone. As the antioxidant, examples include α-tocopherol, ascorbic acid. As the beauty component, examples include vitamins, proteins, anti-inflammatory agents, crude drugs. As the preservative, examples include parabens, phenoxyethanol.

[0081] Examples of the solid powder cosmetic of the present invention include makeup cosmetics such as foundation, blush, lipstick, eyeshadow, eyebrow pencil, concealer, and skin care cosmetics such as sunscreen cosmetics. Cosmetics that significantly exhibit the effects of the present invention are makeup cosmetics such as foundation, eyeshadow, and blush.

[0082] The solid powder cosmetic of the present invention can be obtained as follows: A solvent is added to a cosmetic base mixed with component (A), component (B), and other components as required, and dispersed to form a slurry, which is filled into a container and then the solvent is removed. The method of mixing the cosmetic base is not particularly limited and can be a commonly known method. In addition, the method of removing the solvent (the method of forming) can adopt a commonly known method, for example, after filling the cosmetic base in a slurry state, pressure is applied to remove the excess solvent and then drying is carried out; a commonly known method such as using an absorber such as paper or non-woven fabric to remove the solvent, or removing the solvent through a discharge hole. As the solvent, aqueous components such as water and ethanol, and volatile oil agents can be mentioned. Among them, in terms of moldability and ease of use, the solvent is preferably a volatile oil agent. For example, as the volatile oil agent, light isoparaffin, isododecane, isocetane, cyclic polysiloxane, etc. can be used. The added solvent is preferably 15 to 40 parts by mass, more preferably 20 to 30 parts by mass, based on 100 parts by mass of the cosmetic base material.

[0083] It should be noted that the above solvent volatilizes basically 100%, so the content of the components in the solid powder cosmetic is the same as the content of the components in the cosmetic base.

[0084] It should be noted that in the wet method (a method of adding a solvent to a cosmetic base, dispersing to form a slurry, filling it into a container, and then removing the solvent), the flowing slurry-like cosmetic base is filled into the container, and the cosmetic base flows during filling. Therefore, there is a tendency to have a structure in which plate-like powders are oriented in the flow direction. In particular, the plate-like powders near the surface tend to be oriented parallel to the surface strongly, and the solid powder cosmetic formed by the wet method becomes a state in which the plate-like powders are regularly arranged. It is considered that the orientation of the plate-like powders of the solid powder cosmetic formed by the dry method becomes random. Therefore, in each forming method, the structure of the obtained cosmetic also becomes different. Furthermore, depending on the solvent used above, the orientation of the powders and the local presence of the oil agent also become different, so the structure of the obtained cosmetic becomes different.

[0085] In addition, the present invention can also adopt the following constitution.

[0086] <1>

[0087] A solid powder cosmetic, which is a solid powder cosmetic obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent, and the cosmetic base contains the following components (A), (B):

[0088] (A) A non-glossy powder obtained by covering (a-2) plate-like powders with (a-1) colored iron oxides

[0089] (B) Non-volatile oil,

[0090] The solid powder cosmetic does not contain colored iron oxides that are not covered by the powder component, or the content of the iron oxides relative to the total amount of the cosmetic is 15% or less.

[0091] The solid powder cosmetic does not contain brightening powder, or the content of the brightening powder relative to the total amount of the cosmetic is 15% or less.

[0092] The mass ratio of the aforementioned (a-1) to the colored iron oxides that are not covered by the powder component is (a-1): (colored iron oxides not covered by the powder component) = 100:0 to 20:80.

[0093] <2>

[0094] The solid powder cosmetic according to <1>, wherein the aforementioned (a-2) is one or more selected from mica and synthetic fluorophlogopite.

[0095] <3>

[0096] The solid powder cosmetic according to <1> or <2>, wherein the aforementioned brightening powder is substantially not contained, or the content of the brightening powder relative to the total amount of the cosmetic is 5% or less.

[0097] <4>

[0098] The solid powder cosmetic according to any one of <1> to <3>, wherein the aforementioned component (B) is one or more selected from the group consisting of hydrocarbon oil, silicone oil, and ester oil.

[0099] <5>

[0100] The solid powder cosmetic according to <4>, wherein the aforementioned ester oil contains diethyl malate and / or cetyl 2-ethylhexanoate.

[0101] <6>

[0102] The solid powder cosmetic according to any one of <1> to <5>, wherein the aforementioned component (A) is a combination of synthetic fluorophlogopite coated with iron oxide red and synthetic fluorophlogopite coated with iron oxide yellow. Specific examples

[0104] The following are examples for detailed description of the present invention. It should be noted that these do not arbitrarily limit the present invention.

[0105] Examples 1 to 14, Comparative Examples 1 to 5: Solid powder cosmetic (eyeshadow)

[0106] A solid powder cosmetic having the formulations shown in Tables 1 to 2 below was prepared according to the following production method, and the following evaluation method was used to evaluate each of the items: (1) appearance color difference before and after use, (2) moldability, (3) ease of picking up, and (4) matte feeling. The results are also shown in Tables 1 and 2.

[0107] [Table 1]

[0108]

[0109] ※1 Iron oxide red coverage: 50%

[0110] ※2 Iron oxide yellow coverage: 20%

[0111] ※3 Metashine 1080RR (manufactured by Nippon Sheet Glass Co., Ltd.) ※4 TWINCLE PEARL 410 (manufactured by Nippon Koken Co., Ltd.)

[0112] [Table 2]

[0113]

[0114] (Production method)

[0115] A. Ingredients (1) to (7) and (14) were uniformly mixed.

[0116] B. Ingredients (8) to (13) were uniformly mixed.

[0117] C. B was added to A to form a cosmetic base. To 100 parts by mass of the cosmetic base, 20 parts by mass of isododecane or water was added and mixed and kneaded, and 2.5 g of the mixture was filled into a metal plate container (2.5 cm × 2 cm × 0.3 cm).

[0118] D. From above, where 2 sheets of cellulose paper with a thickness of 0.02 mm were overlapped on the surface of C, compression molding was carried out at 2 kgf / cm 2 while sucking and removing isododecane or water for 4 seconds, and then dried at 70°C for 8 hours to obtain a solid powder cosmetic (eyeshadow).

[0119] (Evaluation items)

[0120] (1) Appearance color difference before and after use

[0121] (Evaluation method)

[0122] For each sample, the color of the surface of the sample before use and the color of the surface of the sample after wiping the cosmetic surface 10 times with a cosmetic patch were measured separately using a spectrophotometric colorimeter SE-2000 (Nippon Denshoku Industries Co., Ltd.). After calculating the ΔE value in the Hunter color system, the determination was made according to the following four-level determination criteria.

[0123] (4-stage judgment criteria)

[0124] (Judgment): (Judgment criteria)

[0125] ◎: ΔE is less than 3

[0126] ○: ΔE is 3 or more and less than 4

[0127] △: ΔE is 4 or more and less than 4.5

[0128] ×: ΔE is 4.5 or more

[0129] (Evaluation items)

[0130] (2) Moldability

[0131] (Evaluation method)

[0132] For each specimen before drying with the solvent removed by suction, using a rheometer (manufactured by RHEOTECH, FUDOH Rheometer Co., Ltd.), measure the penetration hardness (g / cm 2 ) under the measurement conditions (needle: 2 mm, speed: 2 cm / minute, depth: 1 mm), calculate the average value with the number of tests (N) = 3, and make a judgment according to the following 4-stage judgment criteria.

[0133] (4-stage judgment criteria)

[0134] (Judgment): (Judgment criteria)

[0135] ◎: 200 g / cm 2 or more

[0136] ○: 150 g / cm 2 or more and less than 200 g / cm 2

[0137] △: 100 g / cm 2 or more and less than 150 g / cm 2

[0138] ×: less than 100 g / cm 2

[0139] (Evaluation items)

[0140] (3) Ease of handling

[0141] (4) Matt finish

[0142] (Evaluation method)

[0143] For each sample, a usage test was conducted based on 20 members of the professional evaluation panel for cosmetics evaluation. For each item, a 5 - stage evaluation and scoring were carried out according to the following evaluation criteria, and the average score of all evaluation panel members for each sample was calculated, and the determination was made according to the following determination criteria.

[0144] (3) Regarding the ease of picking up, it was evaluated whether the amount adhering to the finger when picking up the sample with the finger was appropriate.

[0145] (4) Regarding the matte feeling, the appearance of the surface of the sample was visually evaluated whether it was matte.

[0146] (Evaluation criteria)

[0147] (Scoring): (Evaluation)

[0148] 5: Very good

[0149] 4: Good

[0150] 3: Ordinary

[0151] 2: Slightly bad

[0152] 1: Bad

[0153] (Determination criteria)

[0154] (Determination): (Average score)

[0155] ◎: 4.0 or above

[0156] ○: Above 3.5 and below 4.0

[0157] △: Above 2.0 and below 3.5

[0158] ×: Below 2.0

[0159] The results in Tables 1 and 2 show that the solid powder cosmetics of Examples 1 - 14 are excellent in all items. It should be noted that in Examples 1 - 14, the measured value ΔE of the appearance color difference before and after use is all 3.5 or less. On the other hand, in Comparative Example 1 where the amount of colored iron oxides not covering the powder component is more than the amount of (a - 1) in Component (A), satisfactory results cannot be obtained in terms of appearance color difference. In addition, in Comparative Example 2 without Component (A), satisfactory results cannot be obtained in terms of appearance color difference and formability. In Comparative Example 3 where the content of bright powder exceeds 15%, satisfactory results cannot be obtained in terms of formability and matte feeling. In Comparative Example 4 where the content of colored iron oxides not covering the powder component exceeds 15%, satisfactory results cannot be obtained in terms of appearance color difference and formability.

[0160] Example 15: Solid powder cosmetic (blush)

[0161] A solid powder cosmetic (blush) was manufactured according to the following formulation and manufacturing method.

[0162]

[0163]

[0164] (Manufacturing method)

[0165] A. Ingredients (1) to (8) were uniformly mixed.

[0166] B. Ingredients (9) to (13) were uniformly mixed.

[0167] C. B was added to A to form a cosmetic base. To 100 parts by mass of the cosmetic base, 20 parts by mass of isododecane was added and mixed and kneaded. 2.5 g of the mixture was filled into a metal tray container (2.5 cm × 2 cm × 0.3 cm).

[0168] D. From above where 2 cellulose papers with a thickness of 0.02 mm were overlapped on the surface of C, compression molding was carried out with a mold at 2 kgf / cm 2 while sucking and removing isododecane for 4 seconds, and then dried at 70 °C for 8 hours to obtain a solid powder cosmetic (blush).

[0169] The solid powder cosmetic (blush) obtained as above was satisfactory in all aspects of no appearance color difference, moldability, ease of picking up, and matte feeling.

[0170] Example 16: Solid powder cosmetic (eyeshadow)

[0171] A solid powder cosmetic (eyeshadow) was manufactured according to the following formulation and manufacturing method.

[0172]

[0173] (Manufacturing method)

[0174] A. Ingredients (1) to (5) were uniformly mixed.

[0175] B. Ingredients (6) to (8) were uniformly mixed.

[0176] C. B was added to A to form a cosmetic base. To 100 parts by mass of the cosmetic base, 20 parts by mass of isododecane was added and mixed and kneaded. 2.5 g of the mixture was filled into a metal tray container (2.5 cm × 2 cm × 0.3 cm).

[0177] D. From above where 2 cellulose papers with a thickness of 0.02 mm were overlapped on the surface of C, compression molding was carried out with a mold at 2 kgf / cm 2Compression molding was carried out, and isododecane was removed by suction for 4 seconds, and then dried at 70 °C for 8 hours to obtain a solid powder cosmetic (eyeshadow).

[0178] The solid powder cosmetic (eyeshadow) obtained as above is satisfactory in all aspects of no appearance color difference, formability, ease of application, and matte feeling.

[0179] Example 17: Solid powder cosmetic (eyeshadow)

[0180] A solid powder cosmetic (eyeshadow) was manufactured according to the following formulation and manufacturing method.

[0181]

[0182] (Manufacturing method)

[0183] A. Ingredients (1) to (8) were uniformly mixed.

[0184] B. Ingredients (9) to (11) were uniformly mixed.

[0185] C. B was added to A to form a cosmetic base. 20 parts by mass of isododecane was added to 100 parts by mass of the cosmetic base and mixed and kneaded, and 2.5 g of the mixture was filled into a metal pan container (2.5 cm × 2 cm × 0.3 cm).

[0186] D. From above where 2 cellulose papers with a thickness of 0.02 mm were overlapped on the surface of C, compression molding was carried out with a mold at 2 kgf / cm 2 while removing by suction for 4 seconds, and then dried at 70 °C for 8 hours to obtain a solid powder cosmetic (eyeshadow).

[0187] The solid powder cosmetic (eyeshadow) obtained as above is satisfactory in all aspects of no appearance color difference, formability, ease of application, and matte feeling.

[0188] Example 18: Solid powder cosmetic (foundation)

[0189] A solid powder cosmetic (foundation) was manufactured according to the following formulation and manufacturing method.

[0190]

[0191] (Manufacturing method)

[0192] A. Ingredients (1) to (3), (7) to (10) were uniformly mixed.

[0193] B. Ingredients (4) to (6) were uniformly mixed.

[0194] C. Add B to A to form a cosmetic base. To 100 parts by mass of the cosmetic base, add 50 parts by mass of a water / ethanol mixed solution and mix and knead. Fill 2.5 g of the mixture into a metal plate container (2.5 cm × 2 cm × 0.3 cm).

[0195] D. From above, where two cellulose papers with a thickness of 0.02 mm are overlapped on the surface of C, use a mold to perform compression molding under 2 kgf / cm 2 while sucking and removing the water / ethanol mixed solution for 4 seconds, and then dry at 70 °C for 8 hours to obtain a solid powder cosmetic (foundation).

[0196] The solid powder cosmetic (foundation) obtained as above is satisfactory in all aspects of no appearance color difference, moldability, ease of use, and matte feeling.

[0197] This application is based on Japanese Patent Application No. 2022-212766 filed on December 28, 2022, and its disclosure is incorporated herein by reference in its entirety.

Claims

1. A solid powder cosmetic, which is obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B): (A) A non-glossy powder obtained by covering (a-1) colored iron oxides on (a-2) plate-shaped powder (B) A non-volatile oil The solid powder cosmetic does not contain colored iron oxides not covered on the powder components, or the content of the iron oxides relative to the total amount of the cosmetic is 15% by mass or less The solid powder cosmetic does not contain glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less The mass ratio of the content of (a-1) to the colored iron oxides not covered on the powder components, (a-1): (colored iron oxides not covered on the powder components), is 100:0 to 20:80 2. The solid powder cosmetic according to claim 1, wherein, (a-2) is one or more selected from mica and synthetic fluorophlogopite 3. The solid powder cosmetic according to claim 1 or 2, wherein It does not contain the glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 5% by mass or less 4. The solid powder cosmetic according to claim 1 or 2, wherein Component (B) is one or more selected from the group consisting of hydrocarbon oil, silicone oil, and ester oil 5. The solid powder cosmetic according to claim 4, wherein, The ester oil contains diethyl malate and / or cetyl 2-ethylhexanoate 6. The solid powder cosmetic according to claim 1 or 2, wherein, Component (A) is a combination of synthetic fluorophlogopite coated with iron oxide red and synthetic fluorophlogopite coated with iron oxide yellow 7. A method for manufacturing a solid powder cosmetic, which is a method for manufacturing a solid powder cosmetic obtained by filling a slurry formed by adding a solvent to a cosmetic base into a container and then removing the solvent. The cosmetic base contains the following components (A) and (B): (A) A non-glossy powder obtained by covering (a-1) colored iron oxides on (a-2) plate-shaped powder (B) A non-volatile oil The solid powder cosmetic does not contain colored iron oxides not covered on the powder components, or the content of the iron oxides relative to the total amount of the cosmetic is 15% by mass or less The solid powder cosmetic does not contain glossy powder, or the content of the glossy powder relative to the total amount of the cosmetic is 15% by mass or less The mass ratio of the content of (a-1) to the colored iron oxides not covered on the powder components, (a-1): (colored iron oxides not covered on the powder components), is 100:0 to 20:80

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