Powdered solid cosmetic and its method of use

Abstract

To provide a powder solid cosmetic containing niacinamide.SOLUTION: There is provided a powder solid cosmetic comprising the following components (A) to (D): (A) a silicone mixture containing an aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer and diphenylsiloxyphenyl trimethicone, in which the content ratio of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the mixture is 5 mass% or more and the content ratio of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the powder solid cosmetic is 0.5 mass% or more, (B) one or more powders selected from cellulose (excluding crystalline cellulose), silica, coral powder, diatomaceous earth, perlite and a composite powder thereof, (C) one or more powders selected from a crystalline cellulose, a polyamide, starch, a modified starch and a composite powder thereof and (D) niacinamide, wherein the content ratio of the component (D) is 1.5 to 10 mass% in 100 mass% of the total of the components (A) to (D) and the remaining components.SELECTED DRAWING: None

Description

Technical Field

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

Background Art

[0002] Niacinamide (nicotinic acid amide) is a kind of water-soluble vitamin B group and is known as an effective ingredient for improving wrinkles in quasi-drugs. Niacinamide can be formulated in a large amount in emulsion cosmetics, water-dispersion cosmetics, and oil-based cosmetics. However, since niacinamide exhibits high water solubility, moisture in the cosmetic or moisture from outside the cosmetic (for example, dew drops due to moisture in the air, lotion or emulsion remaining on the surface of a makeup press, accidental adhesion of water in the usage environment of the cosmetic, etc.) attracts niacinamide, and there is a problem that crystals of niacinamide precipitate after the moisture evaporates.

[0003] Patent Document 1 describes a cosmetic containing niacinamide, metal oxide fine particles, and one or more selected from spherical silica, spherical cellulose, and spherical borosilicate particles. Patent Document 2 describes a solid powdered cosmetic containing (A) a specific silicone mixture, (B) one or more powders selected from cellulose (excluding crystalline cellulose), silica, coral powder, diatomaceous earth, perlite, and composite powders thereof, and (C) one or more powders selected from crystalline cellulose, polyamide, starch, modified starch, and composite powders thereof, and a method for using the same.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention provides a powder or solid cosmetic composition containing niacinamide as an active ingredient, wherein the niacinamide is stably incorporated after contact with water. [Means for solving the problem]

[0006] The present invention relates to a powdered solid cosmetic composition containing components (A) to (D), (A) A silicone mixture comprising an aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer and diphenylsiloxyphenyl trimethicone, wherein the content of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the mixture is 5% by mass or more. The aforementioned powdered solid cosmetic composition contains 0.5% by mass or more of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer. (B) One or more powders selected from cellulose (excluding crystalline cellulose), silica, coral powder, diatomaceous earth, perlite, and composite powders thereof. (C) One or more powders selected from crystalline cellulose, polyamide, starch, modified starch, and composite powders thereof. (D) Contains niacinamide, This is a powdered solid cosmetic composition in which the total of components (A) to (D) and the remainder is 100% by mass, and component (D) accounts for 1.5 to 10% by mass. [Effects of the Invention]

[0007] According to the present invention, a powdered solid cosmetic composition containing niacinamide as an active ingredient can be obtained, which exhibits excellent stability when in contact with moisture. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows the surface condition of the powdered solid cosmetic composition of the example after a water droplet test. [Figure 2] This figure shows the surface condition of the comparative powder-solid cosmetic composition after the same test as the example. [Modes for carrying out the invention]

[0009] <Powdered and solid cosmetic> Component (A) is a silicone mixture containing an aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer and diphenylsiloxyphenyl trimethicone, wherein the content of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the mixture (A) is 5% by mass or more, and the content of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the powdered solid cosmetic is 0.5% by mass or more.

[0010] For aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymers, commercially available products such as KF-8002, KF-8004, KF-880, KF-867 (all manufactured by Shin-Etsu Chemical Co., Ltd.), BELSIL ADM 1370, BELSIL ADM 1650 (both manufactured by Asahi Kasei Wacker Silicone Co., Ltd.), DOWSIL SF 8452 C, and DOWSIL SS-3551 (both manufactured by Dow Chemical Japan Ltd.) can be used. Diphenylsiloxyphenyl trimethicone can be a commercially available product such as KF-56A (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0011] Component (A) may also include other silicone compounds such as dimethicone, methylphenylpolysiloxane, diphenyldimethicone, trimethylsiloxyphenyldimethicone, and phenyltrimethicone. (A) The content of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in the silicone mixture is 5% by mass or more, preferably 5.0 to 20.0% by mass, and more preferably 6.0 to 15.0% by mass.

[0012] (B) component is one or more powders selected from cellulose (excluding crystalline cellulose), silica, coral powder, diatomaceous earth, perlite, and composite powders thereof. As the cellulose excluding crystalline cellulose, regenerated cellulose can be used. The composite powder is a powder in which two or more powders are integrated, a powder in which the surface of one kind of powder is coated with another kind of powder, and the like.

[0013] (B) component can use, as commercially available products, cellulose (spherical) (GE - 800; manufactured by Toshiba Color Pigment Co., Ltd.), silica (spherical) (Silica Micro Bead P - 1500; manufactured by JGC Catalysts & Chemicals Ltd.), coral powder (Marine Bio C - 08; manufactured by Marine Bio Co., Ltd.), perlite (ImerCare 270P - Scrub; manufactured by Kotobuki Shokai Co., Ltd.), etc.

[0014] (C) component is one or more powders selected from crystalline cellulose (natural cellulose), polyamide (nylon - 12), starch, modified starch, and composite powders thereof. The composite powder is a powder in which two or more powders are integrated, a powder in which the surface of one kind of powder is coated with another kind of powder, and the like. Furthermore, the composite powder may be a mixture premixed with a metal oxide powder having an average particle diameter of 0.01 to 0.20 μm. In that case, in 100% by mass of the composite powder, the content ratio of one or more powders selected from crystalline cellulose (natural cellulose), polyamide (nylon - 12), starch, and modified starch is preferably 40% by mass or more, and more preferably 50% by mass or more.

[0015] (C) component can use, as commercially available products, modified starch (octenyl succinic acid corn starch Al: DRY - FLO PURE; manufactured by Nurion Japan Co., Ltd.), crystalline cellulose (Ceolus PH - F20JP; manufactured by Asahi Kasei Corporation), etc.

[0016] (D) component is niacinamide (nicotinic acid amide).

[0017] The powder solid cosmetic of the present invention contains the total of the component (A), the component (B), the component (C), the component (D), and the remaining components including the powder component is 100% by mass. The "remaining components including the powder component" are components that are not involved in the manifestation of the effects of the invention but are for forming the powder solid cosmetic or manifesting the functions as a cosmetic (for example, the coloring effect by a colorant). In 100% by mass of the powder solid cosmetic of the present invention, the content ratio of the component (B) is preferably 2.0 to 15.0% by mass, more preferably 3.0 to 12.0% by mass, and still more preferably 5.0 to 10.0% by mass. In 100% by mass of the powder solid cosmetic of the present invention, the content ratio of the component (C) is preferably 0.5 to 21% by mass, more preferably 2.0 to 15.0% by mass, and still more preferably 4.0 to 10.0% by mass. In 100% by mass of the powder solid cosmetic of the present invention, the content ratio of the component (D) is 1.5 to 10% by mass. From the viewpoints of having a good anti-wrinkle effect and not impairing the usability, 1.5 to 10.0% by mass is preferable, 2.0 to 8.0% by mass is more preferable, and 4.5 to 5.5% by mass is still more preferable. However, in 100% by mass of the powder solid cosmetic of the present invention, the content ratio of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer is 0.5% by mass or more, and preferably 0.8% by mass or more.

[0018] The powder solid cosmetic of the present invention can further contain, as the component (E), a mixture of a metal oxide powder having an average particle diameter of 0.01 to 0.20 μm and a powder having a larger average particle diameter than the metal oxide powder. The content ratio of the metal oxide powder in the mixture is preferably 20 to 70% by mass, and more preferably 20 to 50% by mass. By containing the component (E), the SPF value of the solid cosmetic can be improved. Examples of the metal oxide powder include titanium dioxide, fine-particle titanium dioxide, iron oxide, fine-particle iron oxide, zinc oxide, fine-particle zinc oxide, and cerium oxide. These metal oxide powders may also be compounded with silica, aluminum hydroxide, aluminum oxide, magnesium stearate, etc. As the powder having a larger average particle size than the aforementioned metal oxide powder, one or more selected from layered silicate minerals and synthetic layered silicate compounds are preferred. Examples of these include synthetic layered talc, mica, sericite, synthetic fluorophlogopite, and (fluoride / hydroxylation / oxidation) / (Mg / K / silicon).

[0019] Component (E) can be, for example, a mixture of talc, silica-coated titanium dioxide fine particles, and a mixture of titanium dioxide fine particles (titanium dioxide content 64.05% by mass) (talc JA-46R; manufactured by Asada Flour Milling Co., Ltd., titanium dioxide fine particles MT-500SA; manufactured by Teika Co., Ltd.).

[0020] (E) When component is included, the content ratio in the powdered solid cosmetic is preferably 5 to 40.0% by mass, and more preferably 10 to 25.0% by mass, of 100% by mass of the powdered solid cosmetic of the present invention.

[0021] The solid powder cosmetic composition may contain the following other known cosmetic components, to the extent that they do not impair the effects of the present invention. Furthermore, powder components such as fillers and colorants do not participate in the manifestation of the invention's effects, but are components used to form the powder-solid cosmetic composition and to exhibit cosmetic functions (for example, the coloring effect of the colorant). Talc, titanium dioxide-coated talc microparticles, mica, titanium dioxide-coated mica, boron nitride, kaolin, synthetic fluorophlogopite, (fluoride / hydroxide / oxidation) / (Mg / K / silicon), hydrated silica, barium sulfate, alumina, aluminum hydroxide, zirconia, zinc oxide, cerium oxide, ultramarine, Prussian blue, and other inorganic powders, lauroyl lysine, nylon-6, (HDI / trimethylol hexyllactone) crosspolymer, (HDI / PPG / polycaprolactone) crosspolymer Polypolymer, polymethyl methacrylate, alkyl polyacrylate, methyl methacrylate crosspolymer, (butyl acrylate / glycol dimethacrylate) crosspolymer, (methyl methacrylate / glycol dimethacrylate) crosspolymer, polymethylsilsesquioxane, (vinyl dimethicone / methicone silsesquioxane) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, polysilicone-1 Organic powders such as crosspolymers, polysilicone-22, and metal soaps; glycerin, propylene glycol, sorbitol, polyethylene glycol, dipropylene glycol, 1,3-butylene glycol, diglycerin, ethylhexylglycerin, pentanediol, hexanediol, caprylyl glycol, mannitol, POE methyl glycoside, biopolymers, sucrose and other humectants; mineral oil, petrolatum, paraffin wax, ceresin, polyethylene, hydrogenated polyisobutene, hydrogenated polydecene, synthetic waxes, squalane, esters of higher fatty acids and higher alcohols, oils and fats and other emollient components; preservatives and disinfectants such as methylparaben, ethylparaben, phenoxyethanol, sodium dehydroacetate, isopropylmethylphenol; surfactants such as esters of fatty acids and glycerin or glycerin polymers, esters of fatty acids and sucrose; dipalmitate ascorbic acid, Oil-soluble vitamins such as tocopherol, tocopherol acetate, and retinol palmitate, and their derivatives, pH adjusters such as amino acids and their derivatives, potassium hydroxide, sodium hydroxide, magnesium sulfate, triethanolamine, aminomethylpropanol, aminomethylpropanediol, citric acid, sodium citrate, lactic acid, sodium lactate, UV absorbers such as (para)ethylhexyl methoxycinnamate, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, octocrylene, bis-ethylhexyloxyphenol methoxyphenyl triazine, antioxidants, fragrances, preservatives, chelating agents, and antioxidants.

[0022] The powdered solid cosmetic composition of the present invention may consist of a powder phase containing components (A) to (D) and components (A) to (E) of the present invention, but the content of the powder phase is preferably 70 to 95% by mass, more preferably 80 to 93% by mass, of 100% by mass of the cosmetic composition, and the oil phase is the remainder of the total 100% by mass.

[0023] The powdered solid cosmetic composition containing components (A) to (D) and (A) to (E) of the present invention can be used as a powdered makeup cosmetic composition including powder foundation, pressed powder, solid face powder, blush, powder eyeshadow, powder eyebrow, and powder eyeliner. Furthermore, powdered solid cosmetics containing ingredients (A) to (E) can improve the SPF value due to the action of ingredient (E), and can therefore be used as sunscreen cosmetics.

[0024] The powdered solid cosmetic of the present invention can be used by applying it to the skin after attaching it to a dry sponge (makeup puff) or a sponge moistened with water, as is a common method of use.

[0025] <Method for manufacturing powdered solid cosmetics> The present invention provides a method for producing a powdered solid cosmetic by melting and mixing an oil phase containing component (A) at room temperature, or heating it to 40-100°C if necessary. Next, a powder phase containing components (B), (C), (D), and optionally (E) is uniformly mixed, and the oil phase is added and mixed at room temperature using a Henschel mixer to prepare a mixture. The resulting mixture is then filled into a container and press-molded. The oil phase may contain, in addition to component (A), any cosmetic components in liquid, gel, or solid form. [Examples]

[0026] (A) component Diphenylsiloxyphenyl trimethicone: KF-56A (manufactured by Shin-Etsu Chemical Co., Ltd.) Dimethicone: KF-96A-10CS (Shin-Etsu Chemical Co., Ltd.) Aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer: KF-8004 (Shin-Etsu Chemical Co., Ltd.) (B) Component Cellulose (spherical): GE-800 (Tohshoku Pigment Co., Ltd.) (C) Component Polyamide (Nylon-12): Orgasol 2002D NAT COS (manufactured by Arkema Corporation) (E) Component A mixture of talc, fine-particle titanium dioxide, magnesium stearate, and aluminum hydroxide (titanium dioxide content 28% by mass): TTC-30N (manufactured by Miyoshi Chemical Co., Ltd.)

[0027] (Coloring agent ingredients) Silica-coated titanium oxide (pigment grade): JR-800 (manufactured by Teika Co., Ltd.) Iron oxide (pigment grade): TAROX synthetic iron oxide (manufactured by Titanium Industry Co., Ltd.)

[0028] (Filler component) Talc: Talc JA-46R (manufactured by Asada Flour Milling Co., Ltd.) Mica: Sericite FSE (manufactured by Sanshin Mining Co., Ltd.) Titanium oxide coated mica: Silk MT-505 (manufactured by Nippon Koken Kogyo Co., Ltd.) Boron nitride: BN-06H (manufactured by Ina Trading Co., Ltd.) (Oil phase components) Hexanediol: HYDROLITE 6 O (manufactured by Simrise Co., Ltd.)

[0029] Examples 1-2, Comparative Examples 1-3 Using the ingredients shown in Table 1, powdered and solid cosmetic compositions were obtained by the following method. (Preparation method) The powder phase was prepared by uniformly mixing components (B), (C), (D), and (E) from Table 1, along with the colorant and filler, in a Henschel mixer. Next, it was added and mixed at 25°C to the oil phase, which consisted of pre-mixed components (A) and liquid components. The resulting mixture was then pulverized using a pulverizer such as an atomizer. After passing it through a sieve, it was placed in a metal dish (55.0 mm × 46.8 mm × 5.0 mm), a cosmetic container, at a concentration of 9,890 mm. 3 The aforementioned amount of cosmetic was filled and pressed. Each obtained powdered and solid cosmetic composition was evaluated against the following criteria. The results are shown in Table 1.

[0030] <Stability evaluation (crystal precipitation)> Cosmetic container (55.0mm x 46.8mm x 5.0mm, 12,870mm) 3 The powdered solid cosmetic compositions of the examples and comparative examples, filled to capacity 9,890 ml. 3 The mixture was left to stand at 25°C for 12 hours and allowed to air dry completely. Water (tap water) was dropped onto the surface of the powdered solid cosmetic in the container from a height of 1 cm, at a distance from each dropper (approximately 0.2 mL / drop). After standing at room temperature until the dropped water droplets had completely disappeared, the surface of the cosmetic was visually inspected according to the following criteria.

[0031] <Cosmetic Stability> 4: A slight, discontinuous ring-shaped elevation is observed, following the shape of the water droplet. 3: A ring-shaped bulge is observed, following the shape of the water droplet. 2: An annular protrusion with a diameter larger than that of a water droplet is observed. 1: A ring-shaped protrusion with a larger diameter than a water droplet is observed, and the protrusion is larger than in 2.

[0032] <Presence or absence of white deposits> 5: No white precipitates are observed in the ring-shaped elevation. 4: Slight white precipitates are visible on part of the ring-shaped elevation. 3: Slight white precipitates can be seen along the ring-shaped elevation. 2: White precipitates are visible along the ring-shaped elevation. 1: A clear white precipitate is visible around the entire circumference of the ring-shaped protrusion.

[0033] [Table 1]

[0034] As is clear from Table 1, a comparison of Examples 1 and 2 with Comparative Examples 1 to 3 showed that the amount of white precipitate differed depending on the presence or absence of the aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer in component (A) and the niacinamide content in component (D). Based on these test results, the present invention provides a powdered solid cosmetic containing niacinamide as an active ingredient, which suppresses the crystal precipitation of niacinamide even in the event of unintended contact with water, and exhibits excellent stability when in contact with moisture.

[0035] Prescription Examples 1-3 As powdered solid cosmetic compositions containing components (A) to (D) of the present invention, a powder foundation (Formulation Example 1), a high SPF pressed powder (Formulation Example 2), and a highlighter powder (Formulation Example 3) were prepared. Table 2 shows Formulation Examples 1 to 3.

[0036] [Table 2] [Industrial applicability]

[0037] The powdered solid cosmetic of the present invention can be used as a powdered makeup cosmetic selected from powder foundation, pressed powder, highlighter powder, solid face powder, blush, powder eyeshadow, powder eyebrow powder, and powder eyeliner, and can also be used for sun protection purposes.

Claims

1. A powdered solid cosmetic containing components (A) to (D), (A) A silicone mixture comprising an aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer and diphenylsiloxyphenyl trimethicone, wherein the content of the aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer in the mixture is 5% by mass or more and 15% by mass or less. The content of the aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer in the aforementioned powdered solid cosmetic composition is 0.5% by mass or more and 1.0% by mass or less. (B) One or more powders selected from cellulose (excluding crystalline cellulose), silica, coral powder, diatomaceous earth, perlite, and composite powders thereof. (C) One or more powders selected from crystalline cellulose, polyamide, starch, modified starch, and composite powders thereof. (D) Contains niacinamide, A powdered solid cosmetic composition in which, of the total of components (A) to (D) and the remainder by mass, component (D) is present in an amount of 1.5 to 10% by mass.

2. The powdered solid cosmetic composition according to claim 1, wherein the total of components (A) to (D) and the remainder is 100% by mass, the content of component (B) is 2.0 to 15.0% by mass, and the content of component (C) is 0.5 to 21% by mass.

3. The powdered solid cosmetic according to claim 1, wherein the content of aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer in the silicone mixture of component (A) in the powdered solid cosmetic is 20.0% by mass or less.

4. Furthermore, in the aforementioned powdered solid cosmetic composition, (E) Contains a mixture of metal oxide powder having an average particle size of 0.01 to 0.20 μm and powder having an average particle size larger than that of the metal oxide powder. The powder with a larger average particle size than the aforementioned metal oxide powder is a layered silicate mineral or a synthetic layered silicate compound. The powdered solid cosmetic composition according to claim 1, wherein the content of the metal oxide powder in the mixture is 20 to 70% by mass.

5. The powdered solid cosmetic according to claim 1, which is a powdered makeup cosmetic selected from powder foundation, pressed powder, highlighter powder, solid face powder, blush, powder eyeshadow, powder eyebrow powder, and powder eyeliner.

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