JP2008037780A - Compound powder and cosmetic containing the compound powder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder having effect of realizing 'fresh and young externals' and 'smooth and fine finishing' of the skin, and to provide cosmetics exhibiting 'fresh and young externals' and 'smooth and fine finishing' by using the powder. <P>SOLUTION: A platy compound powder is obtained by adhering a flat organic polymer powder on a substrate platy powder, wherein the average particle size of the compound powder is 1-150 μm. As the substrate platy powder, titanium oxide-covered synthetic phlogopite, which colors polarized red, is especially suitably illustrated. By containing such compound powder, cosmetics can have 'fresh and young externals' and 'smooth and fine finishing' of the skin as optical effects. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a novel composite powder useful as a component of cosmetics, particularly makeup cosmetics, a method for producing the same, and a cosmetic containing the composite powder.

Conventionally, as a technique for making the skin color look beautiful, many powders have been developed that appeal to the effect on light by combining powders or controlling the shape of the powder. For example, a method of providing a cover effect that does not depend on the hiding power by the light interference effect and a method of making the unevenness of the skin inconspicuous by a combination of powders having different refractive indexes.

Recently, sericite, which has a highly transparent cosmetic effect even with mica, and titanium oxide-coated powders with pearly luster (such as titanium mica) are in demand as a base makeup cosmetic powder with a new cosmetic finish. Is expanding. In particular, titanium oxide coated powder such as titanium mica is a processed product in which fine powder of titanium oxide with a high refractive index is coated on the surface of mica, phlogopite, etc., and various interference colors are produced depending on the thickness of the titanium layer. It is preferred as pearl luster.

In actual use, several types of powders having a plate-like powder shape are appropriately blended according to the purpose and mixed with other components such as oily components and color pigments to make a base makeup. Fees are manufactured.

However, solid powder cosmetics that are simply blended with a glittering plate-like powder such as titanium mica may have an artificial, metallic luster or a non-uniform dry impression. . For this reason, in order to obtain a “fresh appearance” and “fine finish” of the skin, a large amount of extender pigments and oils are blended and adjusted.

As a powder used in cosmetics, Patent Document 1 states that the surface of a flaky powder can be coated with a colored spherical resin powder to give a natural finish with a near-skin gloss and transparency. Such an optical effect by coloring does not lead to freshness and fineness of the makeup finish. Further, even in Patent Document 2 in which zinc oxide particles are adhered to a flaky substrate powder that expresses an interference color, the concealing force of zinc oxide has an effect, and the finished appearance cannot be obtained. Furthermore, in the composite powder in Patent Document 3, since the scattering effect of barium sulfate is strong and the hiding power is high, not only the finish but also the fineness and fineness cannot be obtained. Next, Patent Document 4 uses a spherical powder as a base and uses a surface treatment agent having a high refractive index. However, the desired transparency and gloss cannot be obtained, and the freshness and fine finish are not achieved. Further, the method of Patent Document 5 is to encapsulate the plate-like powder in large resin particles and make the resin particles elliptical. However, the glittering property of the plate-like powder is not exhibited, and the plate-like powder is contained so that the composite is included. The particles become large and do not give a fresh, fine finish.

JP 2001-10929 A Japanese Patent No. 3671013 JP 2004-300080 A JP 2005-154279 A JP 2005-154649 A

An object of the present invention is to provide a composite powder having the “fresh appearance” and “fine finish” of the skin as optical effects, a method for producing the composite powder, and a cosmetic that increases the attractiveness of the skin color using the composite powder.

The present invention relates to a composite powder obtained by attaching a flat polymer powder on a base plate powder, the base plate powder having red interference light, and a cosmetic containing the same I will provide a.

In addition, the composite powder of the present invention is obtained by mixing a plate-like powder serving as a base with a flat polymer powder, and then using a manufacturing method such as mechanochemical, electrostatic electrodeposition, polymer adhesive or heat bonding, It can be provided by fixing the molecular powder to the base plate-like powder.

According to the present invention, it is possible to easily provide cosmetics having the `` fresh appearance '' and `` fine finish '' of the skin as optical effects, and particularly when used for cosmetics such as foundations, funniers, and makeup bases. It is possible to provide a novel plate-like composite powder capable of providing a “fresh appearance” and “fine finish”, and a cosmetic that increases the attractiveness of the skin using such a composite powder.

The “fresh appearance” of the present invention is a skin condition in which the skin is moisturized and the skin feels the blood color inside the skin due to the translucency brought about by the moisture. The “fine finish” is a skin state in which fine irregularities on the skin surface are regularly arranged and scatters light appropriately.

[Composite Powder] The content of the plate-like powder in the composite powder of the present invention is not particularly limited, but the mass ratio of the flat polymer powder / plate-like powder is 0.1 from the viewpoint of coating the surface of the plate-like powder. The above is preferable, and 10 or less is preferable from the viewpoint of utilizing the optical characteristics of the plate-like powder. Further, the mass ratio is preferably in the range of 0.3 to 4, and 0.6 to 2 is most preferable because of its particularly high cosmetic effect.

The average particle size of the composite powder of the present invention is preferably 1 to 150 μm, more preferably 5 to 80 μm, from the viewpoint of obtaining a sufficient cosmetic effect. Further, when the average particle size is 20 to 60 μm, the cosmetic effect is the highest and preferable.

[Plate-shaped powder] The plate-shaped powder used in the present invention needs to have red interference light. The plate-like powder having red interference light is a plate-like powder that is white in appearance and has the highest spectral transmittance at a wavelength in the range of 500 nm to 600 nm.

The spectral transmittance of the powder was measured and evaluated with a visible ultraviolet spectrophotometer (manufactured by JASCO). Specifically, the plate-like powder was dispersed in a transparent oil agent having no light absorption at 320 nm to 780 nm, and the thickness was adjusted to 0.1 mm at a concentration of 5% and measured.

The average particle size of the plate-like powder was obtained by photographing 100 plate-like powders with a scanning electron microscope, measuring the major axis of each plate-like surface, and taking this average length as the average particle size.

The plate-like powder is not particularly limited, but mica titanium, titanium oxide-coated synthetic phlogopite, bismuth oxychloride, alumina, silica, talc, etc. and composite powders thereof, fish scales, polyethylene terephthalate epoxy laminated powder, etc. Examples include cut products and composite powders thereof. These plate-like powders may be used alone or in combination of two or more. Of these, titanium oxide-coated synthetic phlogopite is more preferable because it has high interference chroma and high cosmetic effect.

As specific examples of the plate-like powder having red interference light, FLAMENCO RED (manufactured by ENGELHARD), FLAMENCO SUMMIT RED (manufactured by ENGELHARD), FLAMENCO SPARKLE RED (manufactured by ENGELHARD), TIMIRON SUPER RED, manufactured by MERIRON SURD TIMRON SPLENDID RED (made by MERCK), XIRONA VOLCANIC FIRE (made by MERCK), etc. are mentioned. Specific examples of the titanium oxide-coated synthetic phlogopite include GENESTAR 420 (manufactured by Nippon Koken Kogyo), Prominence RF (manufactured by Topy Industries), Prominence RD (manufactured by Topy Industries), Prominence RH (manufactured by Topy Industries), and the like. There is no particular limitation.

These plate-like powders are generally known surface treatment agents such as fluorine compounds, silicone compounds, metal soaps, lecithins, hydrogenated lecithins, collagens, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes. Alternatively, a surface treatment may be performed with a surfactant or the like. A surface treating agent may be used independently and can also use 2 or more types.

[Flat polymer powder] The flat polymer powder of the present invention has a ratio of the average length (a) to the thickness (b) of the powder plane of 1.5 to 20 in terms of (a / b). It is a particle that has. The average length (a) and thickness (b) of the powder plane were measured by photographing 100 flat polymer powders with a scanning electron microscope. Furthermore, the average particle diameter of the flat polymer powder of the present invention is preferably 1 to 50 μm, more preferably 5 to 25 μm, from the viewpoint of obtaining a sufficient cosmetic effect. As the average particle size, the average length (a) of the powder plane was used.

The flat polymer powder used in the present invention is preferably a polyolefin resin, polyamide, polyester, polyacetal or polyacryl, but is not particularly limited.

Examples of the polyolefin resin include olefin homopolymers such as polyethylene, polypropylene, poly-1-butene, polymethylpentene, polymethylbutene, and polybutadiene, and olefin copolymers such as propylene / ethylene random copolymer. A polyolefin having a fluorine atom such as polytetrafluoroethylene (PTFE) can also be used.

Examples of the polyamide include aliphatic polyamides such as nylon-6, nylon-66, nylon-10, nylon-12 and nylon-46, and aromatic polyamides produced from aromatic dicarboxylic acids and aliphatic diamines.

Examples of the polyester include aromatic polyesters such as polyethylene terephthalate, polyethylene naphthalate, and polybutylene terephthalate, polycaprolactone, and polyhydroxybutyrate.

Examples of polyacetals include polyformaldehyde (polyoxymethylene), polyacetaldehyde, polypropionaldehyde, polybutyraldehyde and the like.

Examples of the polyacryl include polyalkyl acrylates such as polymethyl methacrylate and polyethyl methacrylate.

Such flat polymer powders may be used alone or in combination of two or more. Of these, polyolefin resins, particularly polyethylene, are preferred. Specific examples include flat polyethylene particles (manufactured by Sumitomo Seika), but are not particularly limited.

[Production Method of Composite Powder] As a production method of the composite powder of the present invention, the dry fixing method is preferable. Generally, it can be produced by the production method 1 and, when an adhesive component is added, can be produced by the following production method 2.

<Production Method 1> Production method 1 is a method in which a flat polymer powder is charged by stirring at high speed, and electrostatic powder deposition is fixed on the plate-like powder by adding the plate-like powder. At this time, it is also possible to surface-treat the plate-like powder in advance.

Henschel mixer (manufactured by Mitsui Miike), hybridizer (manufactured by Nara Machinery), mechano-fusion system (manufactured by Hosokawa Micron), Mircer (manufactured by Iwatani Industrial Co., Ltd.)
Any closed stirrer that stirs at an equal speed can be produced.

Next, by sieving the composite powder, the powder that cannot be adhered and composited can be removed, and only the target composite powder is recovered. This method is preferable because it does not require a drying step and there is little deterioration in performance due to agglomeration during drying compared to a wet step using a solvent or the like.

<Production method 2> Production method 2 is a method of adding an adhesive component. In a method in which the plate-like powder is dispersed in water or a solvent dissolved in an adhesive component, the flat polymer powder is added and stirred to contact the plate-like powder surface, and agglomeration such as stirring and drying is prevented. In this method, the composite powder is fixed by drying.

Examples of water-dispersed adhesive components include water-soluble polymers. Specifically, cellulose derivatives such as methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, natural alginate, soda, carrageenan, quince seed gum, agar, gelatin, xanthan gum, locust bean gum, pectin, gellan gum, etc. Synthetic polymers such as polymers, polyvinyl alcohol, carboxyvinyl polymer, alkyl-added carboxyvinyl polymer, polyacrylic acid soda, polymethacrylic acid soda, polyacrylic acid glycerin ester, polyvinylpyrrolidone, etc. One kind or two or more kinds can be used.

Examples of the solvent in which the solvent is dispersed include organic solvents that do not dissolve the flat polymer powder. Specifically, alcohols such as methanol, ethanol and isopropanol, hydrocarbons such as hexane and heptane, esters such as ethyl acetate and butyl acetate, petroleums such as kerosene and light oil, acetone, methyl ethyl ketone, etc. Ketones are mentioned.

Solvent-dispersed adhesive components include those that are soluble in solvents such as paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, polyethylene wax, petroleum resin, hydrogenated petroleum resin, liquid paraffin, squalane, Hydrocarbons such as petrolatum, polyisobutylene, polybutene, natural waxes such as carnauba wax, beeswax, candelilla, glyceryl tribehenate, rosin, rosin acid pentaerythritol ester, jojoba oil, cetyl isooctanoate, isopropyl myristate, trioctane Esters such as glyceryl acid, diglyceryl triisostearate, dipentaerythritol fatty acid ester, fatty acids such as stearic acid, behenic acid, 12-hydroxystearic acid, cetanol Higher alcohols such as stearyl alcohol and behenyl alcohol, oils and fats such as olive oil, castor oil, mink oil and owl, lanolin derivatives such as lanolin fatty acid isopropyl and lanolin alcohol, N-lauroyl-L-glutamic acid di (cholesteryl, behenyl, octyl) Amino acid derivatives such as dodecyl), fluorine-based oils such as perfluoropolyether, perfluorodecane, and perfluorooctane. These may be used alone or in combination of two or more.

In production method 2, the blending amount of the adhesive component is preferably 0.01 to 0.25, more preferably 0.02 to 0.15, in terms of the mass ratio of adhesive component / composite powder. When the mass ratio is 0.01 or less, the effect of the adhesive component is weak, and when the mass ratio is 0.25 or more, the effect of use and the cosmetic effect of the composite powder are inferior. A mass ratio of 0.02 to 0.15 is more desirable from the viewpoint of effectively utilizing the cosmetic effect, feeling of use, and adhesive components.

Examples of the equipment used for kneading in the production method 2 include a plast mill, a planetary, a roll mill, a kneader, an extruder, and a ribbon blender.

In production method 2, examples of the equipment used in the drying step include a spray dryer, a vacuum dryer, and an infrared dryer.

[Cosmetic] In the cosmetic of the present invention, the content of the composite powder according to the present invention can be appropriately selected according to the purpose of the cosmetic, and is not particularly limited. 20 mass% is preferable.

The form of the cosmetic of the present invention is not particularly limited, and is a powder cosmetic, a water-in-oil or oil-in-water emulsified cosmetic, an oily cosmetic, a spray cosmetic, a stick cosmetic, an aqueous cosmetic, and a sheet cosmetic. Any of a coating material, a gel cosmetic and the like may be used. Moreover, the kind of makeup cosmetics of this invention is not specifically limited, For example, cosmetics, such as foundation, lipstick, foundation lotion, foundation milky lotion, foundation cream, powdered white powder, wrinkle hiding cream, eye shadow, blusher, etc. are mentioned.

In the cosmetic of the present invention, other components generally used as cosmetic ingredients can be appropriately blended according to the form, type, etc. of the cosmetic as long as the effects of the present invention are not impaired. .

Examples of such cosmetic ingredients include body pigments such as mica, talc, sericite, kaolin, nylon powder, polymethylsilsesquioxane, and barium sulfate; solid pigments such as titanium oxide, zinc white, and iron oxide; Hydrophobized powder such as silicone treatment, metal soap treatment, N-acyl glutamic acid treatment; hydrocarbons such as solid or liquid paraffin, microcrystalline wax, petrolatum, ceresin, ozokerite, montan wax; olive, carnauba wax Vegetable oils such as lanolin, spermaceti, animal fats or waxes; stearic acid, palmitic acid, oleic acid, glycerol monostearate, glycerol distearate, glycerol monooleate, isopropyl myristate, isopropyl Fatty acids such as stearic acid ester and butyl stearic acid ester or esters thereof; higher alcohols such as cetyl alcohol, stearyl alcohol, palmityl alcohol, hexyl decyl alcohol; adsorption of cationized cellulose, carboxybetaine type polymer, cationized silicone, etc. Or thickeners; polyhydric alcohols having a moisturizing action such as glycol and sorbitol; emulsifiers for silicone oils such as polyether-modified silicone, polyether-alkyl-modified silicone, glyceryl ether-modified silicone; methylcellulose, ethylcellulose, carboxymethylcellulose, Thickeners such as polyacrylic acid, tragacanth, agar, gelatin; aluminum hydroxychloride, aluminum chloride, aluminum sulfate, basic bromide Antiperspirants such as luminium, aluminum phenolsulfonic acid, basic aluminum iodide; 3,4,4-trichlorocarbanilide (TCC), benzalkonium chloride, benzethonium chloride, alkyltrimethylammonium chloride, resorcin, phenol, sorbic acid , Bactericides such as salicylic acid; masking agents such as lemon oil, lavender oil, jasmine, vanillin, benzyl acetate, menthol, etc., other emulsion stabilizers, chelating agents, UV protection agents, pH adjusters, preservatives, pigments, whitening Drugs, analgesics, antiphlogistics, antipruritics, bactericides / disinfectants, astringents, emollients, hormonal agents and the like; water; surfactants; W / O or O / W type emulsifiers, fragrances and the like.

The cosmetic of the present invention is produced by a usual method, and the dosage form is an emulsion foundation, powder foundation, oily foundation, makeup base, eye shadow, teak color, body powder, face color, milky lotion, lotion, cream, sunscreen. Etc. are exemplified.

Hereinafter, the present invention will be described in more detail with reference to examples. In addition, this invention is not limited to this, The compounding quantity of each component in the Example of a powder and cosmetics is the mass% with respect to the whole quantity.

Implementation powder 1 Titanium oxide-coated synthetic phlogopite (GENESTAR 420: average particle size 40 μm, manufactured by Nippon Koken Kogyo Co., Ltd.) as flat polymer powder, flat polyethylene (average particle size 10 μm, average plane length (a) And the ratio of thickness (b) (a / b) = 3.5, manufactured by Sumitomo Seika Co., Ltd.) are subjected to high-speed stirring and mixing with a Henschel mixer. The composite powder is obtained by maintaining the stirring at 80 ° C. for 15 minutes. The mass ratio of the composite powder of flat polyethylene / titanium oxide-coated synthetic phlogopite was 1.0.

Comparative powder 1 As a comparative powder, the plate-like powder of the implementation powder 1 and the flat polymer powder are not combined, and the mass ratio of flat polyethylene / titanium oxide-coated synthetic phlogopite is 1.0 so that the mass ratio becomes 1.0 And prepared as a mixed powder.

製法（１）〜（８）を混合，粉砕してヘンシェルミキサーに移す。（９）〜（１３）を混合して加え、均一に混合する。これを粉砕処理し、ふるいを通して整粒した後、金皿に充填して圧縮成型する。 As shown in Table 1, a powder foundation in which the above-mentioned implementation powder 1 and comparative powder 1 were blended was prepared.

The production methods (1) to (8) are mixed, pulverized, and transferred to a Henschel mixer. (9) to (13) are mixed and added, and mixed uniformly. This is pulverized, sized through a sieve, filled in a metal pan and compression molded.

Using the cosmetic of Example 2 above, a use test was performed on the finished product. The use test consists of 20 women in their 30s and 50s, and after applying the usual foundation, the sample is used blindly, giving the best evaluation for fresh appearance and fine finish. , Sensory evaluation was performed according to a five-step criterion with a minimum score of 1, and an average score of 4.5 or more is ◎, 3.5 or more and less than 4.5 is ○, and an average score is 2.5 or more and less than 3.5 The results are shown in Table 2, where Δ is Δ and the average is less than 2.5.

As shown in Table 2, it is recognized that Formulation Example 1 of the present invention has a transparent and fresh appearance and a fine finish. On the other hand, in Comparative Example 2, Comparative Example 2 was inferior to Examples in terms of freshness and fine finish.

As an execution powder 2-9 plate-like powder, titanium oxide-coated synthetic phlogopite (GENESTAR420: average particle size 40 μm, manufactured by Nippon Koken Kogyo Co., Ltd.) and flat polyethylene (average particle size 10 μm, plane average length (a) and thickness ( The ratio of b) (a / b) = 3.5, manufactured by Sumitomo Seika Co., Ltd.) was subjected to high-speed stirring and mixing with a Henschel mixer using the method of Powder Example 1 to obtain a composite powder. Composite powder was prepared by changing the ratio of titanium oxide-coated synthetic phlogopite to flat polyethylene. Table 3 shows.

製法：（１）〜（４）を溶解混合する。（５）〜（１８）を攪拌混合後ハンマーミルで粉砕し、（１）〜（４）に加え混合分散し均一にする。（１９）〜（２１）を溶解混合し、（１）〜（１８）の混合液に攪拌しながら徐々に混合し、乳化型ファンデーションを入手した。 Emulsified foundations having the following compositions were produced using 8 types of powders of the implementation powders 2 to 9 in Table 3. The contents are shown in Table 4.

Production method: (1) to (4) are dissolved and mixed. After stirring and mixing (5) to (18), the mixture is pulverized with a hammer mill, added to (1) to (4), and mixed and dispersed to make it uniform. (19) to (21) were dissolved and mixed, and gradually mixed with stirring to the mixed liquids (1) to (18) to obtain an emulsified foundation.

The evaluation of Example 4 was evaluated using the evaluation method in Example 2. The results are shown in Table 5.

As shown in Table 5, among Formulation Examples 2 to 9 of the present invention, it is recognized that Formulation Examples 2 to 7 have a fresh appearance and a fine finish.

Various combinations of plate powder and polymer powder are bonded with hydrogenated petroleum resin to obtain composite powder. Specifically, the mixed powder of plate-like powder and polymer powder is sprayed with hydrogenated petroleum resin (Alcon P-100, manufactured by Arakawa Chemical Industries) dissolved in hexane, and hexane is dried with a spray drier, resulting in composite powder Get. The ratio of hydrogenated petroleum resin was adjusted to 0.01 relative to the final composite powder. The contents are shown in Table 6.

製法（１）〜（１３）を攪拌混合する。（１４）〜（１７）混合溶解し、（１）〜（１３）に加え混合分散し均一にする。さらにハンマーミルで粉砕し粉おしろい入手した。 Using the powder of Example 5 shown in Table 6, powdered powder having the following composition was produced. The contents are shown in Table 7.

The production methods (1) to (13) are mixed with stirring. (14) to (17) Mix and dissolve, add to (1) to (13), mix and disperse to make uniform. Furthermore, it was pulverized with a hammer mill to obtain powder.

A use test was conducted using the powdered powder of Example 6 above. The finish was evaluated using the evaluation method in Example 2, and the results are shown in Table 8.

As shown in Table 8, it is recognized that the formulation examples 10 and 11 of the present invention are both fresh and fine cosmetics. On the other hand, in Comparative Examples 2 to 6, either the freshness of the finish or the fine finish was inferior.

製法（１）〜（３）と（４）〜（１０）を混合し、ホモミキサーで分散する。次に（１１）と（１５）、（１２）と（１３）をおのおの溶解した後、（１１）〜（１５）をすべて合わせ混合する。さらに（１）〜（１０）混合物に、（１１）〜（１５）に加え混合分散し均一にする。メッシュ濾過した後、化粧下地を得る。 Using the implementation powder 1 obtained in Example 1, 6 types of makeup bases were produced. The contents are shown in Table 9.

Production methods (1) to (3) and (4) to (10) are mixed and dispersed with a homomixer. Next, after (11) and (15), (12) and (13) are dissolved, all (11) to (15) are combined and mixed. Further, in addition to (11) to (15), the mixture (1) to (10) is mixed and dispersed to make it uniform. After mesh filtration, a makeup base is obtained.

本発明の含有量として０．１質量％〜２０％の含有量がより望ましい結果となった。 The makeup base of Table 9 was evaluated using the evaluation method in Example 2, and the results are shown in Table 10.

As the content of the present invention, a content of 0.1% by mass to 20% was more desirable.

Claims (6)

A composite powder in which a plate-like powder that expresses red interference light is used as a base powder, and a flat polymer powder is attached to the base powder. The composite powder according to claim 1, wherein the composite powder has an average particle size of 1 to 150 μm. The composite powder according to claim 1 or 2, wherein the plate-like powder that expresses red interference light as a base is a titanium oxide-coated synthetic phlogopite. The composite powder according to claim 1, wherein the flat polymer powder is polyethylene. A cosmetic comprising the composite powder according to claim 1. A cosmetic comprising 0.1 to 20% by mass of the composite powder according to any one of claims 1 to 4.