JP2014028786A - Powder cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder cosmetic which prevents color change when applied, is excellent in uniformity of a cosmetic film, and is free from dullness of color with time.SOLUTION: A powder cosmetic contains the following components (a) and (b): (a) a powder processed by an amino modified silicone; and (b) an iron oxide/titanium oxide sintered pigment.

Description

  The present invention contains a powder treated with an amino-modified silicone and an iron oxide / titanium oxide sintered pigment, so that color change at the time of application is suppressed, the uniformity of the decorative film is excellent, and color fading with time It is related to powder cosmetics with a small amount.

  Powder cosmetics are dosage forms that are frequently used in makeup cosmetics such as foundations, white powder, teak, eye shadows, and eyebrow, body powders, and antiperspirants. In powder cosmetics, especially makeup cosmetics, there are problems that the appearance color and the coloring color are different, and that the coloring color changes every time it is applied.

  One of the causes is that there is a problem in the dispersibility of the pigment, and the color tone changes due to the difference between the dispersion state in the cosmetic and the dispersion state when applied to the skin to form a cosmetic film. In other words, the powder that is hardened in the cosmetic material collapses due to the application operation, and the color material comes out on the surface, which may cause a change in color. In particular, the skin color, which is the color of the foundation and white powder, is composed of titanium dioxide, which is a white pigment, and iron oxide-based inorganic color pigments such as Bengala, yellow iron oxide, and black iron oxide, and organic color pigments. And since each color material that constitutes these skin colors has different properties, it is difficult to unify the dispersion state of each, causing the difference in appearance color and application color, and the difference in color tone depending on the number of times of application (film thickness). It was.

  Further, regarding the color change, there has been a problem (so-called dullness) that the brightness is lowered or the hue is changed due to the pigment being wet by sweat or sebum.

  Thus, a method has been studied in which a specific skin color sintered pigment is blended to reduce the difference between the appearance color and the attached color and reduce the color change even when wet (for example, Patent Document 1).

  However, in the method of simply blending the skin color sintered pigment, although the whitening of the coating color can be reduced, the color tone changes depending on the number of coatings due to the aggregation of the skin color sintered pigment itself, and the dispersion is poor. In addition, there is a case where a difference in wettability is produced and the effect of suppressing color dullness cannot be obtained.

JP 2007-145778 A

  Therefore, there is a need to solve the above-mentioned problem of coloring and so-called dullness, there is little difference in appearance color and color at the time of application, color change at each application is suppressed, and the uniformity of the cosmetic film is excellent. Furthermore, it was desired to obtain a powder cosmetic that has less color dullness over time.

  In view of this situation, the present inventor has intensively studied. As a result, the dispersibility of the iron oxide / titanium oxide sintered pigment is obtained by using the iron oxide / titanium oxide sintered pigment in combination with the powder treated with amino-modified silicone. As a result, it was found that a powder cosmetic with excellent color uniformity at the time of application, suppression of color change at the time of application, and less color dullness over time was obtained, and the present invention was completed.

That is, the gist of the present invention is as follows.
(1) The following component (a) and component (b);
(A) Powder processed with amino-modified silicone (b) Powder cosmetic comprising iron oxide / titanium oxide sintered pigment,
(2) A sintered pigment obtained by mixing and firing titanium dioxide and an iron compound in a mass ratio of 99: 1 to 80:20 (iron compound converted to ferric oxide). The powder cosmetic according to (1),
(3) The component (b) contains a sintered pigment obtained by firing rutile titanium dioxide having an average particle size of 0.1 to 0.5 μm and an iron compound at 750 to 900 ° C. (1 ) Or (2) the powder cosmetic,
(4) When the component (b) is a colorimetric value in the Hunter Lab color system, the L value is 65 or more, the a value is 15 or less, the b value is 35 or less, and a value / b The powder cosmetic according to any one of (1) to (3), which is a sintered pigment having a value of 0.1 to 0.4,
(5) The powder cosmetic according to any one of (1) to (4), wherein the component (a) is contained in an amount of 1 to 90% by mass in the total powder.
(6) The powder cosmetic according to any one of (1) to (5), containing 0.1 to 30% by mass of the component (b) in the cosmetic,
(7) The component (a) is any one of the above (1) to (6), which is treated with 0.1 to 10 parts by mass of amino-modified silicone with respect to 100 parts by mass of the powder. Powder cosmetics,
(8) Further component (c)
(C) The powder cosmetic according to any one of (1) to (7), comprising an organic spherical powder,
(9) The powder cosmetic according to any one of (1) to (8), wherein the powder cosmetic is solid.
(10) The powder cosmetic according to any one of (1) to (9), wherein the powder cosmetic is a foundation or a white powder.

  The powder cosmetic of the present invention contains a powder treated with amino-modified silicone and an iron oxide / titanium oxide sintered pigment, so that the dispersibility of the iron oxide / titanium oxide sintered pigment is improved and depends on the number of times of application. The color change is suppressed, a uniform decorative film is obtained, and the color dullness with time is small.

Hereinafter, the present invention will be described in detail.
In the present invention, the powder cosmetic contains powder as a main component, and if necessary, an oily component, an aqueous component, a surfactant component and the like are dispersed in the powder, Specific examples include a powdery product obtained by mixing and pulverizing a powder component and other cosmetic ingredients, and a cosmetic obtained by molding the powder component into a solid form, and may have any properties. Further, it may be in a state of being supported on a support such as paper. Although content of the powder in the powder cosmetics of this invention is not specifically limited, Generally it is preferable that it is 50-100 mass%.

  The powder cosmetic of the present invention contains powder treated with amino-modified silicone (component (a)) and iron oxide / titanium oxide sintered pigment (component (b)) as essential components.

  The powder treated with the amino-modified silicone used as the component (a) in the powder cosmetic of the present invention (hereinafter sometimes referred to as “amino-modified silicone-treated powder”) is the component (b) iron oxide. It is blended in order to improve the dispersibility of the titanium oxide sintered pigment, suppress the color change at the time of application, improve the uniformity of the decorative film, and obtain the effect of suppressing color dullness over time.

  The amino-modified silicone used for preparing this component (a) may be any silicone having an amino group or an ammonium group, and amino having all or part of the terminal hydroxyl groups blocked with methyl groups or the like. Either a modified silicone oil or an amodimethicone whose end is not blocked may be used. For example, preferable amino-modified silicones include those represented by the following general formula (1).

〔式中、Ｒは水酸基、水素原子又はＲ^１を示し、Ｒ^１は置換又は非置換の炭素数
１〜２０の一価炭化水素基を示し、ＸはＲ^１、−Ｑ−ＮＨ（ＣＨ_２）_ｎＮＨ_２、
−ＯＲ^１又は水酸基を示し、Ｑは炭素数１〜８の二価炭化水素基を示し、ｎは
１〜５の数を示し、ｐ及びｑはその和が数平均で２以上２０００未満、好まし
くは２０以上２０００未満、更に好ましくは３０以上１０００未満となる数を
示す〕

[Wherein, R represents a hydroxyl group, a hydrogen atom or R ¹ , R ¹ represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and X represents R ¹ , —Q—NH (CH ₂ ) _N NH ₂ ,
-OR ¹ or a hydroxyl group, Q represents a divalent hydrocarbon group having 1 to 8 carbon atoms, n represents a number of 1 to 5, p and q have a number average of 2 or more and less than 2000, preferably Preferably 20 or more and less than 2000, more preferably 30 or more and less than 1000.

  The amino equivalent of the amino-modified silicone is preferably 200 g / mol to 30,000 g / mol, more preferably 500 g / mol to 10,000 g / mol, and still more preferably 600 g / mol to 5000 g / mol.

  Here, the amino equivalent means the mass of the siloxane skeleton per amino group or ammonium group. The notation unit g / mol is a value converted per 1 mol of amino group or ammonium group. Therefore, the smaller the amino equivalent value, the higher the ratio of amino groups or ammonium groups in the molecule.

In addition, the viscosity of this product (value at 25 ° C., the same applies to those described later) is in the range of 100 to 3000 mm ² / s in that the powder is uniformly coated and the uniformity of the decorative film is obtained. It is preferable that.

Specific examples of suitable commercially available amino-modified silicones include SF8451C (manufactured by Toray Dow Corning Silicone, viscosity 600 mm ² / s, amino equivalent 1700 g / mol), SF8452C (Toray Dow Corning Silicone) Manufactured, viscosity 700 mm ² / s, amino equivalent 6400 g / mol), SF8457C (manufactured by Toray Dow Corning Silicone, viscosity 1200 mm ² / s, amino equivalent 1800 g / mol), KF 8003 (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 1850 mm ²⁾ / S, amino equivalent 2000 g / mol), KF8004 (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 800 mm ² / s, amino equivalent 1500 g / mol), KF867S (manufactured by Shin-Etsu Chemical Co., Ltd., viscosity 1300 mm ² / s, amino equivalent 1700 g / mol) ), XF42 B8922 (Momentive Performance Materials Inc., viscosity 70000mm ² / s, amino equivalent weight 13000 g / mol) and amino-modified silicone oil such as, SM8704C (Dow Corning Toray Silicone Co., amino equivalent weight 1800 g / mol) such as Amodimethicone emulsion.

  The amino-modified silicone is preferably liquid at 25 ° C. and may be used in the form of an emulsion. This amino-modified silicone emulsion is prepared, for example, by mechanically mixing amino-modified silicone and a solvent at high shear, emulsifying amino-modified silicone with water and an emulsifier, or a combination thereof, or by emulsion polymerization. be able to.

  The treatment amount of the amino-modified silicone in the preparation of the component (a) amino-modified silicone-treated powder is not particularly limited, but the amino-modified silicone is 0.1 to 10 parts by weight with respect to 100 parts by weight of the powder to be treated. What to process is preferable from a viewpoint of the color-change suppression effect at the time of application | coating, the uniformity of a decorative film, and the color dullness suppression effect with time, Furthermore, it processes with 0.5-7 mass parts with respect to 100 mass parts of powder. It is further preferable because these effects are particularly remarkable.

  On the other hand, the powder that is surface-treated with amino-modified silicone is not particularly limited as long as it is a powder that is usually used in cosmetics, such as spherical, plate-like, needle-like shapes, fumes, fine particles, pigment grades, etc. There are no particular restrictions on the average particle size, particle structure such as porous and nonporous, etc., and examples include inorganic powders, glitter powders, organic powders, pigment powders, and composite powders. It is done.

  Specifically, titanium dioxide, black titanium oxide, cerium oxide, conger, ultramarine, red rose, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, anhydrous silicic acid, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate , Calcium sulfate, chromium oxide, chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, nitriding Inorganic powders such as boron, glitter powders such as bismuth oxychloride, titanium dioxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, aluminum powder, nylon powder, polymethyl methacrylate Leh Powder, acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polyethylene powder, polystyrene powder, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, Organic powders such as N-acyl lysine, organic tar pigments, pigment powders such as organic pigment lake pigments, fine titanium dioxide coated mica titanium, fine zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium dioxide contained Examples thereof include composite powders such as silica and zinc oxide-containing silica, and one or more of these can be used.

  Among them, titanium dioxide, zinc oxide, bengara, yellow iron oxide, black iron oxide, anhydrous silicon oxide from the viewpoint of the dispersibility improvement effect of component (b) iron oxide / titanium oxide sintered pigment (especially the effect of suppressing color change during coating) Inorganic powders such as acid, calcium carbonate, calcium sulfate, mica, synthetic mica, sericite, talc, and barium sulfate are preferred, and among these, plate-like powder is more preferred. Specifically, inorganic plate-like powders such as mica, synthetic mica, sericite, talc, plate-like barium sulfate, and plate-like calcium sulfate are more preferable.

  The average particle diameter is preferably 0.5 to 200 μm, more preferably 1 to 150 μm, in terms of powder dispersibility and usability. In the present invention, the average particle diameter means an average value (average of 50% integrated volume) of powder width and length measured in a dispersion state in water using a laser diffraction / scattering particle size distribution measuring apparatus. Particle size value).

  The amino-modified silicone-treated powder (component (a)) of the present invention is prepared by dispersing amino-modified silicone in a solvent and coating the powder surface, or bringing the powder and amino-modified silicone into contact with each other and adding a solvent or the like as necessary. And obtained by coating the powder surface with mechanical force. The method for coating the surface of these powders with amino-modified silicone is not particularly limited, and generally known processing methods are used. Specifically, there are a method of directly mixing powder and amino-modified silicone, and a method of coating amino-modified silicone with a solvent such as water, ethanol, isopropyl alcohol, n-hexane, light isoparaffin, benzene and toluene. Can be mentioned. Furthermore, a gas phase method, a mechanochemical method, etc. can be mentioned. Among the mechanochemical methods, a method using a kneader having a mechanism in which shear shear force is applied in a shear shear type pressure state such as a lightning crusher, a pressure kneader, a mix muller, a roller mill, a Banbury mixer, and a stone mortar is preferable. .

  As a particularly preferred embodiment, it is a method using a shear shear type low-speed kneader, for example, amino-modified silicone, powder and solvent are mixed using a thunder crusher or the like, heated to 70 ° C. to 120 ° C., The method of crushing after that is mentioned. In another preferred embodiment, the amino-modified silicone is dissolved in a volatile solvent and then mixed with the powder. The solvent is dried and removed, or heated to 70 ° C. to 120 ° C. and then dissolved. The method of crushing is mentioned. Of these, an amino-modified silicone-treated powder obtained by mixing the amino-modified silicone and the powder using a shear shear type low-speed kneader and then heating the mixture to 70 ° C. to 120 ° C. and then crushing it is particularly preferable.

  When the powder coated with amino-modified silicone is heated to about 70 ° C. to 120 ° C. as described above, the amino groups in the amino-modified silicone and oxygen atoms of the siloxane bond interact more strongly with the powder surface. It is preferable because the effect of suppressing color change at the time of application, the uniformity of the decorative film, and the effect of suppressing color dullness over time are improved. Also, by kneading using a solvent, the surface of the substrate can be scratched by strong friction during kneading and electrostatically adsorbed to newly exposed active sites, improving the coating on the powder surface The effect of suppressing color change during application, the uniformity of the decorative film, and the effect of suppressing color dullness over time are preferred.

  As an example of a commercial product of the above-described amino-modified silicone-treated powder (component (a)), “mica Y-2300WA3” (manufactured by Yamaguchi Mica Co., Ltd.) (average particle size 19 μm) ) And talc treated, “EX-15WA3” (manufactured by Yamaguchi Mica Co., Ltd.) (average particle size 15 μm) can be mentioned.

  The component (a) of the present invention can be treated simultaneously with other treatment agents, for example, fatty acids, metal soaps, fluorine compounds, etc., as long as the effects of the present invention are not hindered. In addition, the component (a) of the present invention can be used in combination with a powder treated with a treating agent other than the amino-modified silicone of the present invention or an untreated powder as long as the effect is not hindered.

  The content of the component (a) in the powder cosmetic of the present invention is not particularly limited, but 0.5 to 75% by mass (hereinafter, simply referred to as “%”) suppresses the color change effect at the time of application and the uniformity of the cosmetic film. From the viewpoint of the effect of suppressing color dullness over time, the content is further preferably 1 to 50% because these effects are particularly remarkable.

  As described above, the content of the powder in the powder cosmetic of the present invention is preferably 50 to 100%, but the content of the component (a) in this total powder amount is preferably 1 to 90%. 4 to 50% is particularly preferable.

  On the other hand, the iron oxide / titanium oxide sintered pigment of component (b) used in the powder cosmetic of the present invention is a sintered pigment obtained by firing titanium dioxide and an iron compound at 750 to 900 ° C.

  The average particle diameter of titanium dioxide used as a raw material for the iron oxide / titanium oxide sintered pigment (hereinafter referred to as “sintered pigment”) of the present invention is not particularly limited, but is 0.1 to 0 in order to obtain a high hiding power. 0.5 μm is preferable, and 0.2 to 0.3 μm is more preferable. The crystal form of the titanium dioxide may be either a rutile type or an anatase type, but the rutile type is more preferable because a high hiding power can be obtained and the catalytic activity is lower.

  Examples of the iron compound used as a raw material for the sintered pigment include ferric oxide, ferrous oxide, iron tetroxide, iron hydroxide, organic acid iron such as iron oxalate, iron citrate, and the like. Examples thereof include inorganic acid irons such as iron chloride, ferric sulfate, and iron sulfate. When these are mixed with the titanium oxide and fired at 750 to 900 ° C., the iron compound is present in the sintered pigment as iron oxide.

  Further, the mass ratio of iron oxide to titanium dioxide in the sintered pigment (iron compound converted to ferric oxide) is not particularly limited, but 99: 1 to 80:20 is from the viewpoint of the effect of suppressing color change at the time of application. Further, 98: 2 to 90:10 is more preferable because the effect is more remarkable.

  The L value, a value, and b value of the sintered pigment used as the component (b) in the present invention are the L value of 65 or more and the a value of 15 in the colorimetric values in the Hunter Lab system color system. In the following, it is preferable that the b value is 35 or less and the a value / b value is 0.1 to 0.4 in the region where the skin color is generally used, and color development and color dullness are suppressed. . More preferably, the a value / b value is 0.2 to 0.3. In addition, the measurement in the Hunter Lab system color system uses a quartz cell of a powder sample holder manufactured by JASCO Corporation, and the measurement method is a colorimeter such as Nippon Denshoku Color Difference Meter SZ-Σ90. 1 g of the sample is pressed from behind the quartz window of the quartz cell by applying pressure with a screw lid, and the color value is measured in a state where the sample surface is uniform without a gap.

  The content of the component (b) in the powder cosmetic of the present invention is not particularly limited, but is 0.01 to 30% from the viewpoint of the effect of suppressing color change at the time of application, uniformity of the cosmetic film, and the effect of suppressing color dullness over time. Is more preferable, and 0.1 to 20% is more preferable.

  Moreover, in the powder cosmetics of this invention, the said sintered pigment can use 1 type, or 2 or more types as needed. Further, the sintered pigment may be used after being subjected to a surface treatment with a generally known treatment agent such as a fluorine compound, a silicone compound, or a surfactant.

  In the present invention, an organic spherical powder can be further added as the component (c), whereby the difference in pigment wetting due to sweat or sebum can be reduced, and the effect of suppressing color dullness can be further improved. it can. This component (c) is not particularly limited as long as it is an organic spherical powder usually used in cosmetics. Specifically, for example, nylon, polyalkyl methacrylate, silicone, polystyrene, acrylonitrile-methacrylic acid copolymer, Examples thereof include vinylidene chloride-methacrylic acid copolymer, polyethylene, cellulose and the like, and two or more of these powders may be combined into a spherical shape, and these may be used alone or in combination. Among these, a powder having an average particle diameter of 1 to 50 μm is preferable, and 3 to 40 μm is more preferable.

  More preferably, a silicone powder such as a reticulated silicone, a cross-linked silicone, or a composite powder of these, such as a cross-linked silicone / reticulated silicone block copolymer, improves the spread of color in addition to the effect of suppressing color dullness. In particular, a cross-linked silicone / network-type silicone block copolymer is preferable in terms of uniformity of the decorative film. For example, polymethylsilsesquioxane, (dimethicone / vinyl dimethicone) cross polymer, (vinyl dimethicone / methicone silsesquioxane) cross polymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) cross polymer Some of them are elastomers and others are not elastomers.

  Examples of commercially available organic spherical powders of component (c) include nylon 12SP-500 (manufactured by Toray Industries, Inc.), Matsumoto Microsphere M-101, 305 (polymethacrylate), all of which are Matsumoto Yushi Manufactured by Pharmaceutical Co., Ltd.), Gantzpearl GS-0605, which is polystyrene (manufactured by Gantz Kasei), Trefill E505, E506, E701 (all manufactured by Toray Dow Corning Silicone), Tospearl 2000B * (Toshiba Silicone, Inc.) Product), KSP-100, 101, 102, 105, 300 (all manufactured by Shin-Etsu Chemical Co., Ltd.).

  In addition, the organic spherical powder of these components (c) is, for example, a fluorine compound, a silicone-based oil (except for amino-modified silicone used in component (a)), metal soap, In addition, a material that has been surface-treated by a generally known method such as a treatment with a surfactant, oil or fat, hydrocarbon or the like may be used.

  The content of the component (c) in the powder cosmetic of the present invention is preferably 0.1 to 30%, more preferably 0.5 to 20%, in terms of the effect of suppressing color dullness and film uniformity.

  In addition to the above-mentioned components, the powder cosmetic of the present invention usually contains components used in cosmetics, such as powder (excluding components (a), (b) and (c)), surface activity Agents, oil agents, ultraviolet absorbers, oil gelling agents, aqueous components such as water-soluble polymers and alcohols, oil-soluble film forming agents such as trimethylsiloxysilicic acid, paraoxybenzoic acid derivatives, preservatives such as phenoxyethanol, vitamins, Beauty ingredients, fragrances, and the like can be appropriately added as long as the effects of the present invention are not impaired.

  Among these surfactants, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, Nonionic surfactants such as fatty acid esters of sorbitol and its alkylene glycol adducts, polyalkylene glycol fatty acid esters, polyoxyalkylene-modified silicones, polyoxyalkylene alkyl co-modified silicones; fatty acids such as stearic acid and lauric acid; Their inorganic or organic salts, alkylbenzene sulfates, alkyl sulfonates, α-olefin sulfonates, dialkyl sulfosuccinates Acid salt, α-sulfonated fatty acid salt, acylmethyl taurine salt, N-methyl-N-alkyl taurine salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl Anionic surfactants such as ether phosphates, polyoxyethylene alkylphenyl ether phosphates, N-acyl-N-alkyl amino acid salts; alkylamine salts, polyamines and alkanoylamine fatty acid derivatives, alkylammonium salts, alicyclic Cationic surfactants such as ammonium salts; amphoteric surfactants such as phospholipids, N, N-dimethyl-N-alkyl-N-carboxymethylammonium betaines, and the like. Can be used.

  Examples of the oil include hydrocarbons such as paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, fisher trops wax, polyethylene wax, liquid paraffin, squalane, petrolatum, polyisobutylene, and polybutene; carnauba wax, Natural waxes such as beeswax, lanolin wax, candelilla; glyceryl 2-ethylhexanoate, pentaerythritol ester of rosin acid, cetyl isooctanoate, isopropyl myristate, diglyceryl triisostearate, dipentaerythritol fatty acid ester, dimalate malate Esters such as isostearyl allyl, dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), stearic acid, beheny Acids, fatty acids such as 12-hydroxystearic acid; higher alcohols such as cetanol, stearyl alcohol, and behenyl alcohol; lanolin derivatives such as lanolin fatty acid isopropyl, lanolin alcohol; and N-lauroiru L-glutamic acid di (cholesteryl, behenyl, octyldodecyl) Amino acid derivatives such as fluorinated oils such as perfluoropolyether, perfluorodecane, and perfluorooctane, and one or more of these may be used.

  Furthermore, any UV absorber may be used as long as it is usually used in cosmetics. For example, 2-hydroxy-4-methoxybenzophenone, 2,4,6-trianilino-para- (carbo-2′-ethylhexyl). -1'-oxy) -1,3,5-triazine and other benzophenone series, salicylic acid series such as 2-ethylhexyl salicylate, PABA series such as ethyl paradihydroxypropylbenzoate, and cinnamon such as paramethoxycinnamic acid-2-ethylhexyl Examples thereof include acid-based and dibenzoylmethane-based compounds such as 4-tert-4′-methoxydibenzoylmethane, and one or more of these can be used.

  Furthermore, any oil gelling agent may be used as long as it is usually used in cosmetics. Examples thereof include dextrin fatty acid ester, sucrose fatty acid ester, starch fatty acid ester, hydroxystearic acid, calcium stearate and the like. 1 type, or 2 or more types can be used.

  The aqueous component to be included in the powder cosmetic of the present invention may be water or any component that is soluble in water. For example, lower alcohols such as ethyl alcohol and propyl alcohol; propylene glycol, and 1,3- Glycols such as butylene glycol, dipropylene glycol, 1,2-pentanediol, polyethylene glycol; glycerols such as glycerin, diglycerin, polyglycerin; plants such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, rose Extract liquid etc. are mentioned. Examples of water-soluble polymers include cellulose derivatives such as methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose; sodium alginate, carrageenan, quince seed gum, agar, gelatin, xanthan gum, locust bean Natural polymers such as gum, pectin, gellan gum; synthetic polymers such as polyvinyl alcohol, carboxyvinyl polymer, alkyl-added carboxyvinyl polymer, polyacrylic acid soda, polymethacrylic acid soda, polyacrylic acid glycerin ester, polyvinylpyrrolidone 1 type or 2 types or more can be used.

  The powder cosmetic of the present invention can be implemented in either a powder form or a solid form. Among them, a solid form is preferable because an effect of suppressing color change during application and a uniform decorative film can be easily obtained. The powder cosmetic of the present invention can be applied to products such as sunscreens, makeup bases, foundations, concealers, white powders, blushers, eye shadows, and those used for foundations, white powders and the like are particularly preferable.

  A preferred embodiment of the powder cosmetic of the present invention is a solid powder cosmetic, and as an example of a production method thereof, after mixing the powder containing (a) and (b) and an oil component, The method of compression molding to a metal dish is mentioned. Another aspect is a powdery powder cosmetic, and the production method thereof is to mix the powder containing (a) and (b) with an oily component as necessary, and then pulverize the mixture into a container. The method of filling is mentioned.

  Next, the present invention will be described in more detail with reference to production examples and examples of amino-modified silicone-treated powder and iron oxide / titanium oxide sintered pigment. Note that these do not limit the present invention.

Manufacturing example 1
Production of amino-modified silicone-treated titanium dioxide:
5 parts by mass of amino-modified silicone (KF8003 / Shin-Etsu Chemical Co., Ltd.) is dissolved in 70 parts by mass of isopropyl alcohol, and 95 parts by mass of titanium dioxide (CR-50 / average particle size of 0.25 μm / Ishihara Sangyo Co., Ltd.) is dissolved therein. Added. After mixing it with a super mixer (SMP-2 / manufactured by Kawata), isopropyl alcohol was evaporated and dried at 80 ° C. This dried product was pulverized with an atomizer (LM-05 / Dalton) to obtain powdered amino-modified silicone-treated titanium dioxide (5% treatment).

Manufacturing example 2
Production of amino-modified silicone-treated mica:
3 parts by weight of amino-modified silicone (KF867S / Shin-Etsu Chemical Co., Ltd.), 97 parts by weight of mica (Y-2300 / average particle size 19 μm / manufactured by Yamaguchi Mica) and 10 parts by weight of water and a thunder crusher (ZOD type / Ishikawa) (Manufactured by Factory) and mixed for 3 hours and heated at 100 ° C. for 4 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain powdered amino-modified silicone-treated mica (3% treatment).

Manufacturing example 3
Production of amino-modified silicone-treated talc (1):
3 parts by weight of amino-modified silicone (KF8004 / manufactured by Shin-Etsu Chemical Co., Ltd.), 97 parts by weight of talc (EX-15: average particle size 15 μm / manufactured by Yamaguchi Mica Co., Ltd.) and 10 parts by weight of water were added to a thunder crusher (ZOD type / Ishikawa). (Made by a factory company) for 3 hours, and heated at 90 ° C. for 3 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain a powdery amino-modified silicone-treated talc (3% treatment).

Manufacturing example 4
Production of amino-modified silicone-treated talc (2):
2 parts by mass of amino-modified silicone (SF8451C / manufactured by Toray Dow Corning Silicone) and 98 parts by mass of talc (JA-13R: average particle size 6 μm / manufactured by Asada Flour Mills) super mixer (manufactured by SMP-2 / Kawata) And mixed at 3000 rpm for 10 minutes and heated at 70 ° C. for 5 hours. Thereafter, the mixture was pulverized with an atomizer (LM-05 / Dalton) to obtain a powdery amino-modified silicone-treated talc (2% treatment).

Manufacturing example 5
Manufacture of iron oxide and titanium oxide sintered pigments:
Titanium dioxide and ferric oxide were uniformly mixed at a mass ratio of 97: 3 and baked at 850 ° C. for 2 hours in the air. After firing, this was pulverized by an atomizer (manufactured by Hosokawa Micron Corporation) to obtain a powdery skin-colored iron oxide / titanium oxide sintered pigment (average particle diameter of 0.25 μm).

  The calorimetric values of the iron oxide / titanium oxide sintered pigment thus obtained were L value: 73.40, a value: 4.19, b value: 17:03, a value / b value: 0.246. .

Manufacturing Example 6
Manufacture of iron oxide and titanium oxide sintered pigments:
Titanium dioxide and ferric sulfate were uniformly mixed at a mass ratio of 95: 5 and baked at 900 ° C. in the atmosphere for 3 hours. After firing, this was crushed with an atomizer (manufactured by Hosokawa Micron Corporation) to obtain a powdery skin-colored iron oxide / titanium oxide sintered pigment (average particle size 0.28 μm).

  The calorimetric values of the iron oxide / titanium oxide sintered pigment thus obtained were L value: 70.26, a value: 6.57, b value: 18:83, a value / b value: 0.349. .

Test Example The components shown in Table 1 below were mixed, pulverized with a pulverizer, and filled into a container to obtain Samples 1 to 3.

  Each sample (0.05 g) was applied onto urethane artificial skin (manufactured by Beaulux) and lightly stretched. The color tone at this time point and the color tone when stretched with a finger five times are measured with a hand-held spectrophotometer (CM-503d: manufactured by Minolta Co., Ltd.), and the change in color tone (ΔE) between the two is obtained. Judgment was made according to the criteria.

Color difference (ΔE): Evaluation 3 or more: ×
2 or more and less than 3:
1 or more and less than 2: ○ Less than 1: ◎

  At the same time, visual judgment was also performed, and “no color change at the time of application” was evaluated with the number of measurements 5 times according to the evaluation criteria and judgment criteria in the sensory evaluation method of Example 1 described later. The results are also shown in Table 1.

  As is apparent from the results in Table 1, sample 1 using mica surface-treated with amino-modified silicone and iron oxide / titanium oxide sintered pigment has little color change even when the number of coatings is increased. Sample 2 using mica not surface-treated with modified silicone and sample 3 using non-sintered pigment instead of iron oxide / titanium oxide sintered pigment of component (b) change color as the number of coatings increases. I found out that Moreover, the result about the color change by a color difference meter was in agreement with the result by visual observation.

Example 1
Solid foundation:
A solid foundation having the composition shown in Table 2 was prepared by the following production method. In addition, according to the following evaluation methods and evaluation criteria, (i) “no color change at the time of application”, (ii) “uniformity of cosmetic film”, and (c) “dullness” were evaluated. For “no color change at the time of application”, both sensory evaluation and evaluation measured by a color difference meter were evaluated. The results are also shown in Table 2.

[Composition]

[ Production method ]
A: Components 1 to 17 are mixed.
B: Components 18 to 22 are added to A and mixed.
C: B is pulverized with a pulverizer.
D: C was compression molded into a metal pan to obtain a solid foundation.

[Sensory evaluation method]
20 panelists specializing in cosmetics evaluation use the solid foundation shown in Table 2, and “No color change at the time of application”, “Uniformity of cosmetic film”, 5 hours after cosmetic application Each item of “no color dullness” was evaluated in five stages according to the following evaluation criteria, and a score was assigned to each sample. Furthermore, the average score of all panels was determined according to the following criteria.

Evaluation criteria:
(Evaluation result): (Grade)
Very good: 5 points Good: 4 points Normal: 3 points Somewhat bad: 2 points Bad: 1 point Criteria:
(Average score): (Judgment)
4.5 or higher: ◎
3.5 or more and less than 4.5: ○
1.5 or more and less than 3.5: △
Less than 1.5: ×

[Evaluation method with color difference meter]
A solid foundation shown in Table 2 was applied once and three times on a urethane artificial skin (manufactured by Beaulux) using a cosmetic mat to prepare a sample. The change in color tone (ΔE) of the once-coated sample and the three-coated sample was measured with a hand-held spectrocolorimeter (CM-503d: manufactured by Minolta Co., Ltd.), and d “no color change during application” And determined according to the following criteria.

Judgment criteria:
(ΔE): (determination)
3.0 or more: ×
2.0 or more and less than 3.0: △
1.0 or more and less than 2.0: ○
Less than 1.0: ◎

  As is apparent from the results in Table 2, the solid foundations of Inventions 1 to 6 have “no color change at the time of application”, “uniformity of the cosmetic film”, “no color dullness after 5 hours of cosmetic application. It was excellent in all items.

  On the other hand, the comparative product 1 which does not contain the component (a) amino-modified silicone-treated powder has a non-uniform adhesion to the skin when applied, a heavy elongation, and feels dry like a powder when finished. It was inferior to “no color change at the time of application” and “uniformity of the cosmetic film”. Further, in Comparative product 2 containing a powder surface-treated with another silicone instead of component (a), the elongation and spread at the time of application was poor, and “no color change at the time of application” and “uniformity of the cosmetic film”. It was inferior. Similarly, Comparative Product 3 containing a powder treated with a fluorine compound instead of component (a) has low affinity for the skin, has an uncomfortable feeling of extension, and the cosmetic film floats from the skin after application. It was particularly inferior to “uniformity of the cosmetic film” such as feeling.

  Further, in Comparative product 4 which does not contain the iron oxide / titanium oxide sintered pigment of component (b), there is a difference in the appearance color and the coloring color of the cosmetic, and the color change at the time of application is remarkable. The color tone changed to red and black even after 5 hours, and the color tone was inferior. Furthermore, in Comparative product 5 which simply contains amino-modified silicone together with the oil agent in cosmetics, powder agglomeration was observed, and in particular, there was agglomeration of iron oxide / titanium oxide sintered pigment of component (b). The film uniformity was inferior. In addition, good results were not obtained in “no color change at the time of application” and “no dullness”.

  Furthermore, the comparative product 6 containing only the iron oxide / titanium oxide sintered pigment in double the amount of the iron product / titanium oxide sintered pigment without containing the powder surface-treated with the amino-modified silicone of component (a) Although the difference in the applied color was improved, the color and the spread at the time of application were poor, and it was inferior in “uniformity of the cosmetic film” such as thick and unnatural and non-uniform finish. Also, the makeup film changed to grayish in 5 hours, and the “dullness” was inferior. Furthermore, in comparative product 7 which does not contain iron oxide / titanium oxide sintered pigment and contains only the surface-treated mica in the amino-modified silicone of component (a) in double the amount of embodiment product 1 and comparative product 4, Although the spread to the skin and the uniformity of the cosmetic film are slightly improved, there is a large difference between the appearance color of the cosmetic amount and the applied color, which is inferior to “no color change at the time of application”, and the color tone changes to red and black after 5 hours. However, it was inferior to “no color dullness”.

Example 2
Solid foundation:
A solid foundation having the composition shown in Table 3 was prepared by the following production method. In addition, according to the same evaluation method and evaluation criteria as in Example 2, (i) “no color change at the time of application”, (ii) “uniformity of the decorative film” and “(dullness)” were evaluated. For “no color change at the time of application”, both sensory evaluation and evaluation measured by a color difference meter were evaluated. The results are shown in Table 4.

[Composition]

[Result]

[ Production method ]
A: Components 1 to 18 are mixed.
B: Components 19 to 25 are dissolved and mixed at 90 ° C.
C: Add B to A and mix.
D: C is pulverized with a pulverizer.
E: D was compression molded into a metal pan to obtain a solid foundation.

  As is clear from the results in Table 4, the solid foundations of Inventions 7 to 12 have “no color change at the time of application”, “uniformity of the cosmetic film”, and “no color dullness” 5 hours after application of the cosmetic. It was excellent in all items.

  On the other hand, the comparative product 8 which does not contain the component (a) amino-modified silicone-treated powder has a non-uniform adhesion to the skin when applied and has a heavy elongation, and feels dry and dry like the finish. It was inferior to “no color change at the time of application” and “uniformity of the cosmetic film”. Moreover, in the comparative product 9 containing the powder surface-treated with other silicone instead of the component (a), the elongation spread at the time of application is poor, and “no change in color at the time of application” or “uniformity of the cosmetic film”. It was inferior. Similarly, the comparative product 10 containing a powder treated with a fluorine compound instead of the component (a) has a low affinity for the skin, has an uncomfortable feeling of spreading, and the cosmetic film floats from the skin even after application. It was particularly inferior to “uniformity of the cosmetic film” such as feeling.

  Further, in the comparative product 11 which does not contain the iron oxide / titanium oxide sintered pigment of the component (b), there is a difference in the appearance color and the coloring color of the cosmetic, and the color change at the time of application is remarkable. The color tone changed to red and black even after 5 hours, and the color tone was inferior. Furthermore, in the comparative product 12 which simply contains the amino-modified silicone together with the oil agent in the cosmetic, there is agglomeration of the powder, and in particular, there is agglomeration of the iron oxide / titanium oxide sintered pigment as the component (b). The film uniformity was inferior. In addition, good results were not obtained in “no color change at the time of application” and “no dullness”.

  Furthermore, the comparative product 13 containing only the iron oxide / titanium oxide sintered pigment in a double amount of the iron product / titanium oxide sintered pigment without containing the powder surface-treated with the amino-modified silicone of component (a) Although the difference in color was improved, the color and the spread at the time of application were poor, and it was inferior in “uniformity of the cosmetic film” such as a thick and unnatural and non-uniform finish. Also, the makeup film changed to grayish in 5 hours, and the “dullness” was inferior.

  Furthermore, comparative product 14 which does not contain iron oxide / titanium oxide sintered pigment and contains only the surface-treated mica in the amino-modified silicone of component (a) in the amount of the comparative product 11 is extended to the skin upon application. Although the spread and uniformity of the cosmetic film are slightly improved, the difference between the appearance color of the cosmetic and the coloring color is large, and it is inferior to “no color change at the time of application”, and the color changes to red and black after 5 hours. It was inferior to dullness.

Example 3
Powdered white powder:
(Ingredient) (%)
1. Amino-modified silicone-treated mica of Production Example 2 15
2. Iron oxide / titanium oxide sintered pigment of Production Example 2
3. Stearic acid (5%) treated yellow iron oxide 0.2
4. Steep acid (5%) treated bengara 0.1
5. Stearic acid (5%) treated black iron oxide 0.05
6. Barium sulfate ^{* 5} 4
7. Silicone composite spherical powder ^{* 6} 10
8. Dimethylpolysiloxane (3%) treated talc Residual amount 9. Titanium mica ^{* 7} 2
10. Methyl methacrylate cross polymer ^{* 8} 5
11. Methylparaben 0.1
12. Dilinoleic acid di (phytosteryl / stearyl / 1
Behenyl / isostearyl / cetyl) ^{* 9}
13. Isotridecyl isononanoate 0.5
14. Avocado oil 0.1
15. Appropriate amount of fragrance * 5: Plate-like barium sulfate HL (manufactured by Sakai Chemical Industry Co., Ltd.)
* 6: KSP-100 (Shin-Etsu Chemical Co., Ltd.)
* 7: TIMIRON STARLUSTER MP-115
(Merck)
* 8: MR-7GC (manufactured by Soken Chemical)
* 9: PLANDOOL-S (manufactured by Nippon Seika Co., Ltd.)

(Production method)
A: Components 1 to 11 are mixed.
B: Components 12 to 15 are mixed with A.
C: B is pulverized.
D: C was filled into a container to obtain a powdery white powder.

  When the effect of the powdered white powder of this example was evaluated according to Example 1, it was found that “no color change at the time of application”, “uniformity of the cosmetic film”, and “no color dullness”. All items were excellent.

Example 4
Solid blusher:
(Ingredient) (%)
1. Amino-modified silicone-treated mica 5 of Production Example 2
2. Amino-modified silicone-treated talc of Production Example 3 15
3. Iron oxide / titanium oxide sintered pigment of Production Example 3
4. Red No. 226 0.5
5. Octyltriethoxysilane (5%) treated sericite 30
6. Nylon powder (spherical: average particle size 10 μm) 5
7. Boron nitride 5
8. Remaining amount of talc 9. Silicone elastomer powder ^{* 10} 1
10. Zinc myristate 1
11. Titanium mica ^{* 7} 4
12. Methylparaben 0.2
13. Dimethylpolysiloxane ^{* 11} 3
14. PEG-10 hydrogenated castor oil 0.5
15. Squalane 3
16. Lauroylglutamate di (octyldodecyl /
Phytosteryl) 3
17. Sodium hyaluronate 0.01
18. Perfume appropriate amount * 10: Trefil E-506C (manufactured by Toray Dow Corning)
* 11: KF-96 (10cs) (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Production method)
A: Components 1 to 12 are mixed with a Henschel mixer.
B: Components 13 to 18 are mixed with A.
C: B is pulverized with a pulverizer.
D: C was filled in a resin dish and pressure-molded to obtain a solid blusher.

  When the effect of the solid blusher of this example was evaluated according to Example 1, it was found that “no color change at the time of application”, “uniformity of the cosmetic film”, “no color dullness”. All items were excellent.

Example 5
Solid eyebrow:
(Ingredient) (%)
1. Amino-modified silicone-treated talc oxide of Production Example 4 5
2. Iron oxide / titanium oxide sintered pigment of Production Example 4
3. Mica 10
4. Dimethylpolysiloxane (3%) treated talc 30
5. Bengala 1
6. Yellow iron oxide 6
7. Black iron oxide 2
8. Lauroyl lysine 1
9. Synthetic wax 1
10. Phospholipid (1%) treated sericite remaining amount 11. Silica (spherical: average particle size 5 μm) 5
12. Sodium dehydroacetate 0.3
13. Hydrogenated polydecene 2
14. Polyhydroxystearic acid 0.2
15. Cholesteryl hydroxystearate 1.5
16. Tocopherol acetate 0.05
17. Perfume appropriate amount

(Production method)
A: Components 1 to 11 are mixed uniformly with a super mixer.
B: Components 12 to 17 are dissolved by heating at 70 ° C. and added to A.
C: B is pulverized.
D: C was press-filled into a resin dish to obtain a solid eyebrow.

  When the effect of the solid eyebrow of this example was evaluated according to Example 1, it was found that “no color change at the time of application”, “uniformity of the cosmetic film”, “no color dullness”. All items were excellent.

Example 6
Solid eye shadow:
(Ingredient) (%)
1. Amino-modified silicone-treated mica of Production Example 2 5
2. Amino-modified silicone-treated talc of Production Example 3 20
3. Iron oxide / titanium oxide sintered pigment of Production Example 1
4. Red No. 202 1
5. Yellow No.4 0.2
6. Yellow iron oxide 0.1
7. Bengala 0.5
8. Silicone-treated silicic acid / titanium oxide coated mica ^{* 12} 10
9. Mica titanium ^{* 13} 10
10. Iron oxide coated mica titanium ^{* 14} 5
11. Titanium dioxide coated synthetic phlogopite ^{* 15} 10
12. Titanium dioxide coated borosilicate ^{* 16} 5
13. Dimethylpolysiloxane (3%) sericite remaining amount 14. Sorbitan sesquistearate 1
15. Heavy isoparaffin 3
16. Diisostearyl malate 4
17. dialkyl carbonate _{(C 13 ~C} 16) 4
18. Lavender oil 0.1
19. Ascorbyl tetrahexyl decanoate 0.1
* 12: Timylons treated with dimethylpolysiloxane (3%)
Blended violet (Merck)
* 13: FLAMENCO ULTRA SPARKLE 4500
(BASF)
* 14: DUOCROME RY (manufactured by BASF)
* 15: HELIOS R100S (Topy Industries, Ltd.)
* 16: Metashine MT1080RR (manufactured by Nippon Sheet Glass Co., Ltd.)

(Production method)
A: Components 1 to 13 are mixed uniformly.
B: Components 14 to 17 are heated and dissolved at 70 ° C.
C: B and components 18 and 19 are mixed with A.
D: Process by sieving C.
E: D was press-filled into a metal pan to obtain a solid eye shadow.

  When the effect of the solid eye shadow of this example was evaluated according to Example 1, it was found to be “no color change at the time of application”, “uniformity of the cosmetic film”, “no color dullness”. It was excellent in all items.

Example 7
Powdered body powder:
(Ingredient) (%)
1. Amino-modified silicone-treated talc of Production Example 3 50
2. Iron oxide / titanium oxide sintered pigment of Production Example 1
3. Red No. 226 0.1
4. Yellow No.4 0.2
5. Black iron oxide 0.05
6. Bengala 0.2
7. Silicone resin powder ^{* 17} 7
8. Mica remaining amount 9. Porous silica ^{* 18} 5
10. Fragrance 1
11. L-menthol 0.3
12. Kanfa 0.02
13. Lactic acid menthyl 0.2
* 17: Tospearl 150KA (Toray Dow Corning)
* 18: Cyros Sphere C-1504 (Fuji Silysia)

(Production method)
A: Components 1 to 9 are mixed uniformly with a Henschel mixer.
B: Components 10 to 13 are added to A and mixed uniformly.
C: B was filled in a container to obtain a powdered body powder.

  When the effect of the powdered body powder of this example was evaluated according to Example 1, it was found to be “no color change upon application”, “uniformity of the cosmetic film”, “no color dullness”. It was excellent in all items.

  The powder cosmetic comprising the powder treated with amino-modified silicone and the sintered face of iron oxide / titanium oxide according to the present invention has different appearance color and coloring color, or the coloring color changes every time it is applied. This is a powder cosmetic that suppresses the problem of color change (color tone change) at the time of application, has excellent uniformity in the cosmetic film, and has less color dullness over time.

Therefore, the present invention can be advantageously used as makeup cosmetics such as foundation, white powder, teak, eye shadow, and eyebrow, and powder cosmetics such as body powders and antiperspirants, which have excellent cosmetic effects. .

that's all

Claims (10)

The following components (a) and (b);
(A) Powder treated with amino-modified silicone (b) A powder cosmetic comprising an iron oxide / titanium oxide sintered pigment.   The component (b) is a sintered pigment obtained by mixing and firing titanium dioxide and an iron compound in a mass ratio of 99: 1 to 80:20 (iron compound converted to ferric oxide). Item 1. A powder cosmetic according to Item 1.   The powder according to claim 1 or 2, wherein the component (b) is a sintered pigment obtained by firing an iron compound at 750 to 900 ° C on rutile titanium dioxide having an average particle size of 0.1 to 0.5 µm. Body cosmetics.   When the component (b) is a colorimetric value in the Hunter Lab color system, the L value is 65 or more, the a value is 15 or less, the b value is 35 or less, and the a value / b value is 0. The powder cosmetic according to any one of claims 1 to 3, which is a sintered pigment of 0.1 to 0.4.   The powder cosmetic according to any one of claims 1 to 4, wherein the component (a) is contained in an amount of 1 to 90% by mass in the total powder.   The powder cosmetic according to any one of claims 1 to 5, wherein the component (b) is contained in an amount of 0.01 to 30% by mass in the cosmetic.   The powder cosmetic according to any one of claims 1 to 6, wherein the component (a) is treated with 0.1 to 10 parts by mass of amino-modified silicone with respect to 100 parts by mass of the powder. Furthermore, the following component (c)
(C) Powder cosmetics in any one of Claims 1-6 containing organic spherical powder.   The powder cosmetic according to any one of claims 1 to 8, wherein the powder cosmetic is solid. The powder cosmetic according to any one of claims 1 to 9, wherein the powder cosmetic is a foundation or a white powder.