JP7097734B2 - Powder cosmetics - Google Patents

Description

The present invention relates to powder cosmetics.

Conventionally, many kinds of preservatives and fungicides have been used in cosmetics such as cosmetics and quasi-drugs, and among them, benzoic acids and phenoxyethanol have been widely used as preservatives and fungicides for cosmetics. However, these preservatives and disinfectants avoid cosmetics containing these preservatives and disinfectants due to some skin-sensitive users called sensitive skin and diversification of choices such as the recent expansion of natural tastes. The number of consumers is increasing, and preservatives and bactericides are being studied in cosmetics (Patent Documents 1 and 2). Furthermore, it is known that zinc oxide contained in cosmetics for the purpose of ultraviolet scattering agents and colorants has antibacterial and antifungal effects, and it is known that the effects differ depending on the specific surface area. (Patent Document 3).

Japanese Unexamined Patent Publication No. 2004-182640 Japanese Unexamined Patent Publication No. 2007-1947 Japanese Unexamined Patent Publication No. 2010-168286

On the other hand, in powder cosmetics, when an organic resin raw material such as polyurethane or nylon is contained, it is widely used because it improves flexibility and adhesion to the skin, while the organic resin powder adsorbs a specific preservative. It is known that the antiseptic power tends to be deactivated when the content of the organic resin powder is increased. In addition, if the organic resin powder is spherical, the contact area with the skin is small, and although it is flexible, the cohesive force between the powders is high, so when applying it on the skin using props, the scattering property is enhanced. There was a tendency for the powdered skin to become less familiar with the skin.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a powder cosmetic product which does not scatter during use and is highly elastic, improves pore hiding effect and makeup lasting, and maintains antiseptic power. And.

In such a situation, the present inventor has conducted diligent research to solve the above problems, and as a result, a powder cosmetic containing a specific amount of polyurethane powder and organic resin powder and a specific amount of zinc oxide of a specific size. However, they have found that even when they do not substantially contain a bactericidal preservative such as paraoxybenzoic acid or phenoxyethanol, they suppress the scattering of powder during use and maintain effective preservative power, and have completed the present invention. Furthermore, it was also found that even when the organic resin powder is spherical, the dispersibility of each powder is improved, the uniform adhesion to the skin is improved, and the scattering property is reduced.

That is, the present invention has the following components (A) and (B).
(A) At least 30% by mass or more of organic resin powder containing 20% by mass or more of polyurethane powder (B) 0.1 to 5% by mass of surface-treated fine particle zinc oxide having an average primary particle diameter of 20 to 150 nm.
A powder cosmetic containing, and has a preservative content of less than 0.1% by mass.

INDUSTRIAL APPLICABILITY The present invention provides a powder cosmetic containing substantially no preservative, which has antiseptic power, does not scatter during use and is rich in elasticity, improves pore hiding effect and makeup lasting. Is.

In the present invention, the average particle size is the average value on the device of the width and length of the powder measured in the dispersed state in water using a laser diffraction / scattering type particle size distribution measuring device (average particle size value with an integrated volume of 50%). ) Is measured.

The component (A) of the present invention contains at least 30% by mass (hereinafter, may be abbreviated as "%") of an organic resin powder containing a polyurethane powder in a cosmetic, and the polyurethane powder is a cosmetic. It contains 20% or more. As the organic resin powder, any organic resin powder can be used as long as it is usually used for cosmetics. Ingredient (A) can impart a silky feel and good spreadability to powder cosmetics, and the shape is not particularly limited, but in addition to a true spherical shape, an elliptical shape or a part or the whole of a spherical surface can be covered. A substantially spherical shape having irregularities is preferably used. If it is spherical, the whole is composed of a single component, the inner core and the outer shell are composed of different components such as the core-shell type, and the different components are dispersed inside. Hollow powder having a cavity inside, and those containing or impregnating a beneficial component inside can be used without particular limitation. Specifically, organic powder such as polyurethane powder, cellulose powder, nylon powder, polymethylmethacrylate powder, polyethylene powder, silicone resin powder, and inorganic surface such as silica powder and aluminosilicate powder. Examples include powder. The average particle size of the spherical powder is preferably 2 to 40 μm, more preferably 5 to 30 μm. This range is preferable because it is easy to blur at the time of application and the soft focus effect is excellent. These may be used alone or in admixture of two or more. These have been treated with one or more of fluorine-based compounds, silicone-based compounds, metal soaps, lecithin, amino acid derivatives, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, surfactants, etc. May be.

The polyurethane powder contained in the component (A) is a general term for polymers having a urethane bond, and is not particularly limited as long as it is usually produced by double addition of a compound having an isocyanate group and a hydroxyl group, but is hexamethylene diisocyanate (hexamethylene diisocyanate). Examples thereof include those having HDI), and specific examples thereof include (HDI / trimethylolhexyl lactone) cross polymer, (HDI / PPG / polycaprolactone) cross polymer and the like. The polyurethane powder preferably has an average particle size of 2 to 40 μm, and if it is in this range, excellent effects can be obtained particularly in terms of elasticity and smoothness at the time of coating. Further, even if it is a composite powder, the composition is not limited as long as the surface is polyurethane. The polyurethane powder is preferably spherical in terms of feel.

As such polyurethane powder, commercially available products such as plastic powders D-200, D-400, D-800, CS-400, etc. (all manufactured by Toiro Pigment Co., Ltd.) can be used. Organic powders other than polyurethane powder include Olgasol 2002D (average particle size 20 μm, manufactured by Atofina Japan), which is a nylon powder, and Matsumoto Microsphere M100 (average particle size 8 μm), which is an alkyl polyacrylate powder. , Matsumoto Microsphere S100, S102 (all manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.), Techpolymer ACX-806C, Techpolymer ACX-1502C (all manufactured by Sekisui Kasei Kogyo Co., Ltd.), TOSPERL 145 (average), which is a silicone resin powder. Particle size 4.5 μm, manufactured by Momentive Performance Materials Japan GK), TOSPERL 150KA (average particle size 5 μm, manufactured by Momentive Performance Materials Japan GK), a silicone resin powder with irregularities on the surface. And other commercially available products can be used. These have been treated with one or more of fluorine-based compounds, silicone-based compounds, metal soaps, lecithin, amino acid derivatives, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, surfactants, etc. May be.

The content of the component (A) in the present invention is 30% or more, preferably 30 to 50%. Of the component (A), the polyurethane powder may be contained in the cosmetic in an amount of 20% or more, and all of the component (A) may be polyurethane powder. Within this range, the effect of the present invention can be predominantly exerted in antiseptic.

The component (B) surface-treated zinc oxide of the present invention refers to zinc oxide having a treatment agent attached, adsorbed or coated on the surface thereof, and the treatment may be either physical or chemical, and zinc oxide may be treated. It may be applied to all or part of the surface of. Zinc oxide is preferably treated with a surface treatment to prevent surface activity and eluted metal ions from the viewpoint of affecting the skin.

The treatment agent is not limited to organic or inorganic, and the fineness of the coating is not particularly limited. The shape of the component (B) of the present invention is not particularly limited, and may be spherical, needle-shaped, plate-shaped, or the like. Zinc oxide, which is the base of the component (B), preferably has an average particle size in the range of 20 to 100 nm. Commercially available products such as -50 (manufactured by Ishihara Sangyo Co., Ltd.), fine particle zinc oxide MZ-500, MZ-300, MZ-200 (manufactured by Teika Co., Ltd.), and XZ-100F (manufactured by Sakai Chemical Industry Co., Ltd.) can be used.

The inorganic surface treatment agent is not particularly limited, and specific examples thereof include silica, hydrous silica, alumina, aluminum hydroxide, iron oxide and the like, and one or more of these may be used. can. Examples of commercially available surface-treated products include silica-coated MZ-500HP (manufactured by TAYCA) and Max Wright ZS-032-D (manufactured by Showa Denko).

The organic surface treatment agent is not particularly limited, and specific examples thereof include silicone, fluorine, organic titanate, metal soap, lecithin and the like, and one or more of these can be used.

Examples of the silicone treatment agent include chain silicones such as low polymerization degree dimethylpolysiloxane, high degree of polymerization degree dimethylpolysiloxane, and methylphenylpolysiloxane, modified silicones such as amino-modified silicone, alkyl-modified silicone, and alkoxy-modified silicone, and trimethylsiloxy. Examples thereof include silicone resins such as silicic acid and acrylic-silicone graft copolymers, silicone rubbers, partially or fully crosslinked organopolysiloxanes, silylating agents, silane coupling agents and the like.

Examples of the fluorine treatment agent include fluorine compounds such as fluorine-modified silicone, perfluoroalkyl phosphoric acid and its salt, perfluoropolyether, fluoroalkoxysilane, perfluoropolyetheralkylphosphoric acid and its salt, and perfluoroalkylsilane. ..

Examples of the organic titanate treatment agent include long-chain carboxylic acid type, pyrophosphoric acid type, phosphorous acid type, amino acid type and the like, and alkyl titanates having an alkyl group having 8 to 24 carbon atoms are preferable. Specifically, the alkyl titanate is, as a long-chain carboxylic acid type alkyl titanate, isopropyltriisostearoyl titanate, isopropyltrioctanoyl titanate, isopropyldimethacrylisostearoyl titanate, isopropylisostearoyldiacryl titanate, diisostearoylethylene. Examples thereof include titanate, and examples of the pyrophosphate type alkyl titanate include tetraisopropylbis (dioctylphosphite) titanate, tetraoctylbis (ditridecylphosphite) titanate, and tetra (2,2-diallyloxymethyl-1-butyl) bis (2,2-diallyloxymethyl-1-butyl) bis. Ditridecylphosphite) titanate and the like, and examples of the phosphite-type alkyl titanate include isopropyltri (dioctylpyrophosphate) titanate, bis (dioctylpyrophosphate) oxyacetate titanate, bis (dioctylpyrophosphate) ethylene titanate and the like. Examples of the amino acid type alkyl titanate include isopropyltri (N-amide ethyl / aminoethyl) titanate. In the present invention, among these alkyl titanates, it is preferable to select a long-chain carboxylic acid type alkyl titanate, and it is particularly preferable to select isopropyltriisostearoyl titanate because the affinity with the skin is improved.

The metal soap treatment agent is composed of, for example, fatty acids such as myristic acid, lauric acid and stearic acid and metals such as zinc, calcium and magnesium, and specifically, magnesium myristate, zinc laurate and stearic acid. Examples thereof include zinc acid and magnesium stearate. In addition, lecithin obtained from soybeans, milk, beef liver, egg yolk, etc. and its hydrogenated additives, lysolecithin such as lysized, lecithin such as hydrogenated lysolecithin, amino acids such as stearoyl glutamic acid, palmitoyl glutamic acid, lauroyl aspartic acid and salts thereof, Examples thereof include higher amino acids such as stearic acid, lauric acid and myristic acid.

The component (B) in the present invention is preferably hydrophobized. Examples of the hydrophobizing agent include silicone treatment agents, fluorine treatment agents, organic titanate treatment agents, metal soap treatment agents, lecithin treatment agents and the like, which are the organic surface treatment agents, and in particular, dispersibility and uniformity of the cosmetic film. In this respect, a silicone treatment agent, a fluorine treatment agent, and an organic titanate treatment agent are preferable.

The method for hydrophobizing the component (B) is not particularly limited, and the component (B) can be produced by a commonly known method. For example, a hydrophobizing agent and powder particles to be treated are added to a solvent, and the mixture is stirred with a ball mill or the like, dried as necessary, washed with water and filtered repeatedly to remove impurities, and then dried. By pulverizing, the desired hydrophobized powder can be obtained. Further, several kinds of compounds which are surface treatment agents can be surface-treated at the same time, and it is also possible to perform surface treatment with any one compound in advance and then surface-treat another compound. The amount of these treatments varies depending on the type of surface treatment agent, its combination, and the type of powder to be treated, and is not particularly limited, but is 0.1 to 15% with respect to the powder to be surface-treated. Is preferable. When the treatment amount is within this range, a surface-treated powder having particularly excellent water resistance and adhesion to the skin can be obtained.

The fine particle zinc oxide, which is the mother body of the component (B), elutes zinc ions in the presence of water, and zinc in these fine particle zinc oxide 1% (containing 5 to 30% alcohol) aqueous solution (ultrasonic dispersion 30 min). The amount of ion elution may be 10 ppm or more, and it is more preferable that the elution is suppressed as much as possible by surface treatment from the viewpoint of skin irritation.

In the present invention, the components (A) and (B) are preferably compounded in advance in that they exhibit the effects of the present application. The compounding treatment may be a simple mixing in which the components (A) and (B) are mixed and stirred in advance, or a mechanochemical treatment in which a forced pressure is applied.

The present invention is a powder cosmetic containing substantially no bactericidal preservative. Specific examples of bactericidal preservatives include benzoic acid, sorbic acid, dehydroacetic acid, salicylic acid and salts thereof, alkyl paraoxybenzoate, chlorphenesin, phenoxyethanol, isopropylmethylphenol, benzalkonium chloride, and chlorhexidine gluconate. Benzalkonium diols such as caprylyl glycol, hexylene glycol, and pentylene glycol are mentioned, and substantially not contained means that the cosmetic content of these bactericidal preservatives is less than 0.1%, preferably 0.05. %, More preferably not contained.

In the powder cosmetics of the present invention, in addition to the ingredients (A) and (B), powders usually used for cosmetics can be used without particular limitation as long as the effects of the present application are not impaired. Specifically, Conjo, ultramarine, carbon black, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, titanium oxide, zinc oxide, cerium oxide, mica, sericite, talc, kaolin, silicon carbide, barium sulfate, Inorganic powders such as boron nitride, bright powders such as bismuth oxychloride and aluminum powder, organic tar pigments, pigment powders such as lake pigments of organic pigments, titanium oxide coated mica, iron oxide treated mica, Composite powder of iron oxide-coated mica titanium, organic pigment-treated mica titanium, silicon dioxide / titanium oxide-coated mica, titanium oxide-coated glass powder, iron oxide-titanium oxide-coated glass powder, titanium oxide-containing silicon dioxide, barium sulfate-coated mica titanium, etc. Etc., and one or more of these can be used. Further, these powders may be used by subjecting them to a surface treatment with a commonly known treatment agent such as a fluorine compound, a silicone compound and a surfactant. The blending amount of the above powder is not particularly limited, but is preferably 50 to 70% with respect to the powder cosmetic.

In the present invention, it is preferable that the component (C) contains the following surface coating treatment agent (a) and the plate-like powder surface-treated with the following surface coating treatment agent (b).
(A) Double-ended reactive diorganopolysiloxane represented by the following general formula (1) R ¹ R ² ₂ SiO- (R ² ₂ SiO) _L -SiR ¹ R ² ₂ (1)
(In the formula, each R ¹ represents a hydroxyl group, each R ² independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents an integer of 3 to 10,000).
(B) Amino group-containing silane compound represented by the following general formula (2)
R ³ R ⁴ mSiX _(3-m) (2)
(In the formula, R ³ represents a hydrocarbon group having at least one amino group and having 1 to 20 carbon atoms, R ⁴ represents an alkyl group having 1 to 4 carbon atoms, and X represents an alkoxy group having 1 to 4 carbon atoms. Represents, m is 0 or 1)

The surface coating treatment agent (a) used in the present invention is a double-ended reactive diorganopolysiloxane, and is a double-ended hydroxysilyl group-modified silicone represented by the following general formula (1).
R ¹ R ² ₂ SiO- (R ² ₂ SiO) _L -SiR ¹ R ² ₂ (1)
(In the formula, each R ¹ represents a hydroxyl group, each R ² independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents an integer of 3 to 10,000).

The form of the above (a) is not particularly limited, but in the present invention, it is preferable to use it in the form of a water suspension or a water emulsion in terms of improving the feel and the like of the component (A). As the method for preparing the water emulsion of (a), a commonly known method may be used, and a method of emulsion polymerization using a low molecular weight cyclic siloxane as a starting material or a method of emulsifying an oily double-ended reactive diorganopolysiloxane. Etc. are exemplified.

The surface coating treatment agent (b) used in the present invention is an amino group-containing silane compound and is represented by the following general formula (2).
R ³ R ⁴ mSiX _(3-m) (2)
(In the formula, R ³ represents a hydrocarbon group having at least one amino group and having 1 to 20 carbon atoms, R ⁴ represents an alkyl group having 1 to 4 carbon atoms, and X represents an alkoxy group having 1 to 4 carbon atoms. Represented, m is 0 or 1)

Preferred examples of the above (b) are not particularly limited, and examples thereof include N- (2-aminoethyl) -3-aminopropyltriethoxysilane, 3-aminopropyltriethoxysilane, and 3-aminopropyltrimethoxysilane. can.

Further, as a preferable mode of the component (C) used in the present invention, a polymerization having a fine three-dimensional crosslinked structure of silicone by a condensation reaction of the above-mentioned surface coating treatment agents (a) and (b) is performed. A powder whose surface is coated with a substance (hereinafter referred to as "silicone microcrosslinked product"). The silicone microcrosslinked product may be a compound having no rubber elasticity, and the mass ratio of (a) and (b) is generally the surface coating treatment agent (a): surface coating treatment agent (b) = 100. : 0.1 to 100: 35 is preferable. If the amount of the surface coating treatment agent (b) is less than 0.1%, it becomes a viscous silicone oil or gum, and if it is more than 35%, it becomes an elastic silicone elastomer, and the surface coating-treated powder becomes water repellent. Tends to decrease.

Further, the silicone microcrosslinked product is preferably a polymer having no rubber elasticity, that is, rubber hardness. A polymer having no rubber hardness has a measured value of less than 10, more preferably less than 5, and even more preferably 0 in the measurement method (soft rubber hardness measurement) by the durometer type AO defined in ISO7619-1. Is.

The component (C) is preferably contained in the cosmetic in an amount of 5 to 80%. Within this range, the powder cosmetic of the present invention is preferable in terms of moist feeling, smooth spreading and spreading, excellent adhesion feeling, and no scattering.

In addition to the above components, the powder cosmetics of the present invention include oily components, aqueous components, surfactants, polymers, colorants, powders, ultraviolet absorbers, antioxidants, fragrances, beauty ingredients and the like. It can be appropriately contained within a range that does not interfere with the effect.

As the oily component, any of those usually used for cosmetics can be used regardless of the shape of solid oil, semi-solid oil, liquid oil and the like. Specifically, solid oils such as paraffin wax, esterine wax, microcrystallin wax, polyethylene wax, Fishertroph wax, olive oil, castor oil, jojoba oil, mink oil, macadamian nut oil and other fats and oils, squalane, polybutene, etc. Hydrocarbon oils such as hydrogenated polyisobutene, liquid paraffin, vaseline, cetyl isooctanate, cetyl 2-ethylhexanoate, glyceryl tri2-ethylhexanate, glyceryl tri (capril / capric acid), diglyceryl isostearate, diisostearic acid Diglyceryl, diglyceryl triisostearate, decaglyceryl nonaisostearate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, isononyl isononanoate, isotridesyl isononanoate, pentaerythrit ester of loginate, cholesterol fatty acid ester, dimerate Esters such as (isostearyl / phytosteryl), di-lauroyl-L-glutamate (cholesteryl behenyl octyldodecyl), dimethylpolysiloxane, cyclic silicone, phenyl-modified polysiloxane, fluorine-modified polysiloxane, amino-modified polysiloxane, Examples thereof include silicone oils such as alkyl-modified polysiloxanes. In terms of a silky feel, it is preferable to use an oil agent that is liquid at 25 ° C. Vaseline, macadamia nut fatty acid phytosteryl, hexa (hydroxystearic acid / stearic acid / logonic acid) dipentaerythrityl, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimer dilinoleic acid dimer dilinoleyl bis (behenyl) / Isostearyl / Phytosteryl), macadamia nut oil polyglyceryl-6 esters behenate, (isostearic acid / behenic acid) (glyceryl / polyglyceryl-6) esters and the like may be used in combination with a paste-like oily component at 25 ° C. The content of these oils is not particularly limited, but is preferably 1 to 20% by mass, more preferably 1 to 15% by mass.

Further, as the aqueous component, for example, in addition to water and ethanol, glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, tripropylene glycol, 1,2-pentanediol and polyethylene glycol, glycerin, and the like. Examples thereof include glycerols such as diglycerin and polyglycerin, and plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender and rose.

Surfactants include stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, 12-hydroxystearic acid, poly12-hydroxystearic acid, fatty acid soaps, acylglutamates, alkyl phosphates, etc. Anionic surfactants such as polyoxyalkylene-added alkyl phosphates, cationic surfactants such as alkylamine salts and alkyl quaternary ammonium salts, glycerin fatty acid esters and their alkylene glycol adducts, propylene glycol fatty acid esters and Examples thereof include nonionic surfactants such as the alkylene glycol adduct, the sorbitan fatty acid ester and the alkylene glycol adduct, the sucrose fatty acid ester, the polyoxyalkylene-modified organopolysiloxane, and the glycerin-modified organopolysiloxane.

Examples of the ultraviolet absorber include silicic acid derivative, aminobenzoic acid derivative, salicylic acid derivative, benzophenone derivative, phenylbenzoimidazole derivative, phenylbenzotriazole derivative and the like, and beauty ingredients include rosemary extract, chamomile extract and collagen. Examples thereof include hyaluronic acid and ceramide.

The powder cosmetic of the present invention contains powder as a main component, and can be applied to makeup cosmetics such as foundation, white powder, eye color, teak color, and eyebrow, and skin care cosmetics such as body powder and whitening powder. The shape can be used in either powder form (loose powder) or solid form obtained by molding powder. In addition, the method of use includes a method of using with a hand, a finger, a brush, a puff, a sponge, etc., but in terms of the non-scattering property which is the effect of the present invention, a powdered cosmetic or a brush can be used. Suitable for use in puffs and puffs.

The powder cosmetic of the present invention can be produced by a commonly known method. Although not particularly limited, for example, the following methods can be mentioned.
(1) A method of mixing a powder component containing components (A), (B) and other powders with an oil agent and other components, and then pulverizing the powder into a powder.
(2) A method in which a powder component containing components (A), (B) and other powders is mixed with an oil agent and other components, then filled in a container and compressed / molded.
(3) A powder component containing the components (A) and (B) and other powders, an oil agent, and other components are mixed, a solvent is added to form a slurry, and then the container is filled with the solvent. Method of removing, compressing, molding, etc.

Hereinafter, the present invention will be described in more detail with reference to examples. It should be noted that these do not limit the present invention in any way.

Examples 1 to 11 and Comparative Examples 1 to 6: Face powder Face powder was produced by the composition shown in Tables 1 to 3 below and the method shown below. For each of the obtained samples, (a) scattering property during use, (b) elasticity, (c) pore hiding effect, (d) makeup retention, and (b) antiseptic power were evaluated, and these evaluation results are shown in the table. Described in 1 to 3.

＊１：プラスチックパウダーＣＳ－４００（根上工業社製）
＊２：プラスチックパウダーＤ－４００（根上工業社製）
＊３：プラスチックパウダーＤ－２００（根上工業社製）
＊４：ＯＲＧＡＳＯＬ２００２Ｄ（アトフィナ・ジャパン社製）
＊５：ＫＳＰ－１００（信越化学工業社製）
＊６：マツモトマイクロスフェアＭ－３０５ＱＤ７（松本油脂製薬社製）
＊７：マツモトマイクロスフェアＳ－１００（松本油脂製薬社製）
＊８：ゴッドボールＥ－９０Ｃ（鈴木油脂工業社製）
＊９：コスメシリカＣＱ４（富士シリシア化学社製）
＊１０：ＭＺＹ－５０５Ｍ（テイカ社製）
＊１１：ＭＺＹ－３０３Ｍ（テイカ社製）
＊１２：ＭＺＸ－３０４ＯＴＳ（テイカ社製）
＊１３：ＭＺＹ－２０３Ｓ（テイカ社製）
＊１４：ＸＺ－１００Ｆ-ＬＰ（堺化学工業社製）
＊１５：ＸＺ－３００Ｆ-ＬＰ（堺化学工業社製）
＊１６：ＭＺ－３００（テイカ社製）
＊１７：ＥＸ－１５（ヤマグチマイカ社製）に成分（ａ）２．５％と成分（ｂ）を０．３％表面処理したもの

* 1: Plastic powder CS-400 (manufactured by Negami Kogyo Co., Ltd.)
* 2: Plastic powder D-400 (manufactured by Negami Kogyo Co., Ltd.)
* 3: Plastic powder D-200 (manufactured by Negami Kogyo Co., Ltd.)
* 4: ORGASOL 2002D (manufactured by Atofina Japan)
* 5: KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 6: Matsumoto Microsphere M-305QD7 (manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.)
* 7: Matsumoto Microsphere S-100 (manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.)
* 8: God Ball E-90C (manufactured by Suzuki Oil & Fat Industry Co., Ltd.)
* 9: Cosmetic silica CQ4 (manufactured by Fuji Silysia Chemical Ltd.)
* 10: MZY-505M (manufactured by TAYCA)
* 11: MZY-303M (manufactured by TAYCA)
* 12: MZX-304OTS (manufactured by TAYCA)
* 13: MZY-203S (manufactured by TAYCA)
* 14: XZ-100F-LP (manufactured by Sakai Chemical Industry Co., Ltd.)
* 15: XZ-300F-LP (manufactured by Sakai Chemical Industry Co., Ltd.)
* 16: MZ-300 (manufactured by TAYCA)
* 17: EX-15 (manufactured by Yamaguchi Mica) surface-treated with 2.5% of component (a) and 0.3% of component (b).

(Production method)
A. Ingredients 1 to 16 are uniformly mixed with a Henschel type mixer and pulverized with an atomizer.
B. The mixed pulverized product of Ingredients 1 to 16 and Ingredients 17 to 30 are added to a Henschel type mixer and mixed uniformly.
C. After the components 31 to 32 were additionally added and dispersed, the atomizer was pulverized, and the mixture was sieved to obtain a face powder.

<Evaluation method>
(B) Non-scattering during use (b) Elasticity (c) Pore hiding effect (d) Makeup lasting 10 people have a sensory test panel to use the powder cosmetic, and (b) in use Each panel evaluated the non-scattering property, (b) elasticity, (c) pore hiding effect, and (d) makeup stickiness on a 7-point scale by absolute evaluation, and the average value of the scores of all the panels of each sample. Judgment was made according to the four-step criteria. (B) The lack of scattering during use is whether powder was scattered when using the cosmetic, (b) Elasticity is whether the elasticity was felt when using the cosmetic, and (c) Pore hiding. Regarding the effect, whether or not the pores of the skin after application of the cosmetic were not conspicuous, and (d) for the cosmetic elasticity, the state of the cosmetic film 6 hours after the normal life after application was evaluated.

(Evaluation criteria)
(Score): (Evaluation)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad

(criterion)
(Average score) (Judgment)
5 points or more: Very good: ◎
3 points or more and less than 5 points: Excellent: ○
1 point or more and less than 3 points: Inferior: △
Less than 1 point: Very inferior: ×

(E) Antiseptic power 11 g of the face powders of Examples 1 to 11 and Comparative Examples 1 to 6 were filled in a gold plate having a diameter of 55 mm to prepare a compression-molded product, and the following bacterial solution was formed on the surface thereof. 1 mL is dropped into different places, placed in two humidity conditions of 96 RH% and 100 RH%, and a temperature condition of 25 ° C., and the growth state of the bacteria after 2 weeks is observed visually or with a stereomicroscope, and all the bacteria are observed. The seeds that did not grow were marked with ○, and the seeds that had grown even partially were marked with ×.
≪Bacteria and bacterial fluid≫
Mold 1: Aspergillus brasiliensis (ATCC number: 9642)
Mold 2: Asperguillus terreus (NBRC number: 6346)
Mold 3: Penicillium citrinum (NBRC number: 6352)
Bacterial solution: Concentration 1.0 × 105 ～ 1.0 × 106 CFU / mL respectively

(Evaluation results)
As shown in Tables 1 to 3, the face powders of the examples have (a) non-scattering property during use, (b) elasticity, (c) pore hiding effect, (d) makeup retention (e) antiseptic power. It was an excellent powdery cosmetic for all items.
Further, Examples 1 to 11 and Comparative Examples 1, 2, 5, and 6 showed an effect of suppressing the growth of bacteria, but Comparative Example 1 containing no component (A) was effective in terms of elasticity and pore hiding effect. Comparative Example 2 in which the amount of the polyurethane powder was small was not satisfactory in terms of non-scattering property during use and cosmetic durability.
Bacterial growth was observed in Comparative Example 3 containing the preservative methyl paraoxybenzoate without containing the component (B), and bacteria grew in Comparative Example 4 containing zinc oxide having a different component particle size. .. On the other hand, Comparative Example 6 containing the preservative methyl paraoxybenzoate without containing the component (B) is satisfactory in terms of elasticity and cosmetic durability because it has antiseptic properties but does not contain the component (A). It wasn't a thing.

Example 12: Body powder A body powder was produced by the following formulation and manufacturing method.
(Ingredient) (%)
1. 1. (HDI / PPG / Polycaprolactone) Crosslinked polymer * 1 22.0
2. 2. (Vinyl dimethicone / methicone silsesquioxane)
Cross polymer * 18 20.0
3. 3. Cellulose spherical powder (average particle diameter 30 μm) * 19 10.0
4. Zinc oxide * 16 3.0
5.35 nm Hydrogen Dimethicone Treated Fine Particle Titanium Oxide * 20 5.0
6. Yellow iron oxide 0.4
7. Black iron oxide 0.01
8. Mica remaining amount 9. Component (C) 2% surface coating synthetic phlogopite * 21 20.0
10. Ingredient (C) 5% surface coating sericite * 22 5.0
11. Amino-modified silicone 3% treated mica 3.0
12. Bismuth Oxychloride 2.0
13. Dipropylene glycol 0.3
14. Isotridecyl isononanoate 2.0
15. Liquid paraffin 2.0
16. Fragrance 0.5
* 18: KSP-102 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 19: CELLOLOBEADS D-30 (manufactured by Daito Kasei Kogyo Co., Ltd.)
* 20: MZY-303S (manufactured by TAYCA)
* 21: Processed synthetic phlogopite PDM-10S (manufactured by Topy Industries) coated with (a) 1.8% and (b) 0.2% * 22: Sericite JS-1 (manufactured by TAYCA) (A) 4.0% and component (b) 0.5% coated with (manufacturing method)
A. Mix 1 to 12 evenly with a super mixer.
B. 13 to 16 are uniformly mixed and dissolved.
C. Add B to A and mix uniformly.
D. C was pulverized and filled in a container to obtain body powder.
The obtained body powder was a powdery cosmetic that was excellent in all items of non-scattering property, elasticity, pore hiding effect, makeup lasting, and antiseptic power during use.

Example 13: Cheek color A cheek color was produced by the following formulation and manufacturing method.
(Ingredient) (%)
1. 1. Spherical silica (average particle diameter 5 μm) 5.0
2. 2. (HDI / trimethylolhexyl lactone)
Cross-linked polymer (average particle size 30 μm) * 3 25.0
3. 3. Silicone resin spherical powder (average particle diameter 3 μm) 10.0
4. Red No. 226 0.04
5. Red No. 202 0.25
6. Mica remaining amount 7. Acylated amino acid surface coated talc 20.0
8. Dimethicone 5% Surface Covered Sericite 10.0
9. Synthetic phlogopite iron 3.0
10. Boron Nitride 2.0
11. Pentylene glycol 0.08
12. Refined jojoba oil 0.5
13. Liquid paraffin 2.0
14. Fragrance 0.5
(Production method)
A. Mix 1 to 10 uniformly with a super mixer.
B. 11 to 14 are mixed uniformly.
C. Add B to A and mix uniformly.
D. C was filled in a container to obtain a cheek color.
The obtained cheek color was a powdered cosmetic that was excellent in all items of non-scattering property during use, elasticity, pore hiding effect, makeup lasting, and antiseptic power.

Example 14: Eye color An eye color was produced by the following formulation and manufacturing method.
(Ingredient) (%)
1. 1. (HDI / trimethylolhexyl lactone)
Cross-linked polymer (average particle size 10 μm) * 2 50.0
2. 2. Yellow iron oxide 2.0
3. 3. Black iron oxide 0.5
4. Boron Nitride (Average Particle Diameter 20-35 μm) 5.0
5. Talc 5.0
6. N-lauroyl-L-lysine powder 8.0
7. Mica remaining amount 8. Mica Titanium * 23 10.0
9. Titanium oxide coated synthetic phlogopite * 24 5.0
10. Titanium oxide coated glass powder * 25 3.0
11. Methylpolysiloxane treated silica-coated zinc oxide * 26 4.0
12. Hexanediol 0.05
13. Didimethylpolysiloxane (10CS) 1.0
14. Sorbitan sesquiisostearate 1.0
15. Diisostearyl malate 1.0
* 23: FLAMENCO GOLD 220C (manufactured by BASF)
* 24: HELIOS R300S (manufactured by Topy Industries, Ltd.)
* 25: Microglass Metashine MBE025RB (manufactured by Nippon Sheet Glass)
* 26: Max Wright ZS-032-D (manufactured by Showa Denko KK)
(Production method)
A. Ingredients 1 to 11 are uniformly mixed with a super mixer.
B. 12 to 15 are mixed uniformly.
C. Add B to A and mix uniformly.
D. C was pulverized to obtain an eye color.
The obtained eye color was a powdered cosmetic that was excellent in all items of non-scattering property, elasticity, pore hiding effect, makeup lasting, and antiseptic power during use.

Example 15: Powder foundation A powder foundation was produced by the following formulation and manufacturing method.
(Ingredient) (%)
1. 1. Silicone treatment Synthetic mica Remaining amount 2. Ceramide-treated plate-shaped cellulose * 27 5.0
3. 3. Silicone treated talc 15.0
4. Silicone treated titanium oxide (average particle size 1 μm) 10.0
5. Silicone-treated fine particles Titanium oxide (average particle diameter 80 nm) 8.0
6. Silicone-treated fine particle zinc oxide (average particle diameter 50 nm) * 13 4.0
7. Phospholipid-treated red ocher 0.4
8. Phospholipid-treated iron oxide 2.3
9. Phospholipid-treated black iron oxide 0.2
10. Hollow silica with an average particle size of 18 μm * 28 3.0
11. (HDI / PPG / Polycaprolactone) Crosslinked polymer * 1 26.0
12. Silicone resin powder (average particle diameter 4.5 μm) * 29 6.0
13. Plate-shaped zinc oxide (average particle size 3 μm) * 30 3.0
14. Sodium dehydroacetate 0.03
15. Phenoxyethanol 0.05
16. Dimethicone 2.0
17. Hydrogenated polyisobutene 1.0
18. Neopentyl glycol diisononanoate 5.0
19. Ethylhexyl methoxycinnamate 4.0
20. Tocopherol 0.05
21. Fragrance 0.05
* 27: Plate shape with average particle diameter of 10 to 20 μm * 28: SILICA MICRO BEAD BA-1 (manufactured by JGC Catalysts and Chemicals Co., Ltd.)
* 29: TOSPEARL 145 (manufactured by Momentive Performance Materials Japan)
* 30: XZ-3000F (manufactured by Sakai Chemical Industry Co., Ltd.)
(Production method)
A. Ingredients 1 to 14 were uniformly mixed with a Henschel type mixer and pulverized with an atomizer.
B. A and components 15 to 21 were added to a Henschel type mixer, mixed uniformly, atomized, and then sieved to obtain a powder foundation.
The obtained powder foundation was a powdery cosmetic that was excellent in all items of non-scattering property, elasticity, pore hiding effect, makeup lasting, and antiseptic power during use.

Claims (5)

The following components (A) and (B)
(A) At least 30% by mass or more of an organic resin powder containing 20% by mass or more of polyurethane powder (B) "The surface-treated fine particle zinc oxide having an average primary particle diameter of 20 to 150 nm , and the surface treatment is 0.1-5% by mass of fine particle zinc oxide , which is one of dimethicone treatment, hydrogen dimethicone treatment, octyltriethoxysilane treatment, isopropyltriisostearoyl titanate treatment, and stearic acid treatment.
A powder cosmetic containing, and the content of the preservative is less than 0.1% by mass. The powder cosmetic according to claim 1, wherein the polyurethane powder contained in the component (A) is composed of a polymer composed of hexamethylene diisocyanate. The powder cosmetic according to claim 1 or 2 , further containing 10 to 50% by mass of a plate-like powder surface-coated with the following surface-coating agents (a) and (b) as the component (C).
(A) Double-ended reactive diorganopolysiloxane represented by the following general formula (1) R ¹ R ² ₂ SiO- (R ² ₂ SiO) L-Si R1 R ² ₂ (1)
(In the formula, each R ¹ represents a hydroxyl group, each R ² independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents an integer of 3 to 10,000).
(B) Amino group-containing silane compound represented by the following general formula (2)
R ³ R ⁴ mSiX _(3-m) (2)
(In the formula, R ³ represents a hydrocarbon group having at least one amino group and having 1 to 20 carbon atoms, R ⁴ represents an alkyl group having 1 to 4 carbon atoms, and X represents an alkoxy group having 1 to 4 carbon atoms. Represents, m is 0 or 1) The preservatives are chlorphenesin, phenoxyethanol, benzoic acid and its salts, sorbic acid and its salts, dehydroacetic acid and its salts , alkyl paraoxybenzoate, alkanediol, isopropylmethylphenol, benzalkonium chloride, gluconic acid. The powder cosmetic according to any one of claims 1 to 3 , which is one kind or two or more kinds selected from chlorhexidine. A method for producing a powder cosmetic containing the component (A) and the component (B), and other components other than the component (A) and the component (B).
A step of mixing the component (A) and the component (B) to obtain a mixture, and
The method for producing a powder cosmetic according to any one of claims 1 to 4 , which comprises a step of adding and mixing the other components to the mixture .