JP4943128B2 - Powder-containing cosmetic - Google Patents

Description

一般式（Ｉ）
（但し、式中ｎは２〜７の整数を表し、ｍは１〜３の整数を表し、ａは１〜３の整数を表し、Ｒは炭素数１〜３のアルキル基を表す。） In cosmetics, the powder has a function of covering undesired localization of pigments such as skin spots and freckles, etc., and making them inconspicuous due to its optical effect. For this reason, in such powder-containing cosmetics, the localization of the powder significantly impairs its original effect, and preventing it is the biggest challenge for powder cosmetics. . Such a powder localization phenomenon in powder cosmetics is regarded as “decoration of makeup” along with changes in liquid wetting. As a means for preventing such makeup breakage, methods for coating the surface of powder with various surface treatment agents are also known for “localization suppression” and “liquid wetting suppression”. As the agent, hydrogenmethylsiloxane baking, silylation with a silane coupling agent, coating with perfluoroalkyl phosphate, coating with N-acyl glutamate, coating with phospholipid, and the like are known. Among these, the coating with a surface treatment agent having a perfluoroalkyl group has both water and oil repellency, so it can prevent both localization due to sweat and sebum, thereby improving the durability of the makeup. It has become a useful technology . As a technique using such a compound having a perfluoro group, for example, a technique using a perfluoroalkylsiloxane such as penta-3,3,3-trifluoropropylpentamethylcyclopentasiloxane (for example, Patent Document 1). , Patent Document 2 and Patent Document 3), technology utilizing a phosphoric ester salt having a perfluoroalkyl group (for example, see Patent Document 4 and Patent Document 5), perfluoroalkyl / polyoxyalkylene co-modified organo Treatment using polysiloxane (for example, see Patent Document 6) or a silane coupling agent in which alkylsilane has an alkyl group having 6 to 30 carbon atoms and perfluoroalkylsilane has 1 to 30 fluorocarbons (See, for example, Patent Document 7). However, there are cases where surface treatment with such a compound having a perfluoroalkyl group sometimes exhibits only the same long-lasting makeup as that of the non-treated one, and the development of a technology that can stably realize the goodness of long-lasting makeup. Was desired. Such a phenomenon is thought to be due to the cosmetics falling off due to physical factors such as wind and vibration because the interaction with the skin is weak. In particular, the fluoroalkyl group significantly reduces the coefficient of friction, so that adhesion to the skin may be impaired. On the other hand, triethoxy (8, 8,8,7,7,6,6,5,5,4,4,3,3- Toridekafu Le Orokuchiru) as such powder processing agent silane, Jietokishibisu (8, 8, 8,7,7,6,6,5,5,4,4,3,3- Toridekafu Le Orokuchiru) silane or ethoxy tris (8, 8,8,7,7,6,6,5,5,4 , 4,3,3- Toridekafu Le Orokuchiru) silane surface-treated powder with the already available from Daito Kasei Corporation. Further, the surface of the sericite or mica, silica, zirconia, composite plate-like powder obtained by coating a powder selected from titania and alumina also that known as a cosmetic raw material (e.g., Patent Document 8 , See Patent Document 9 and Patent Document 10) . These composite plate-like powders have a suitable covering power while being plate-like powders, and also appear to be thick and whitish under indoor light sources such as titanium dioxide and zinc oxide. It is known to have excellent properties that are not so much. The only drawback of such a cosmetic effect was its persistence. However, perfluoroalkyl silane represented by the general formula (I), the front surface-treated powder ing to treat the surface of the composite plate-like powder also contains such surface-treated powder cosmetics Is not known at all. Further, such surface-treated powders has a color rendering effect that looks natural under room light sources, and, it is completely unknown also excellent in durability of such effects.

Formula (I)
(In the formula, n represents an integer of 2 to 7, m represents an integer of 1 to 3, a represents an integer of 1 to 3, and R represents an alkyl group having 1 to 3 carbon atoms.)

JP 2005-289831 A JP 2003-40738 A JP-A-2005-213250 Japanese Patent Laid-Open No. 2004-189652 JP 2002-338429 A JP 2002-114663 A JP 2002-80748 A Japanese Patent Laid-Open No. 11-60444 JP-A-10-139629 JP 2002-146238 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide a makeup cosmetic that can be seen naturally under an indoor light source and that has excellent effect sustainability.

In view of such a situation, the present inventors have sought for a makeup cosmetic that looks natural under an indoor light source and has excellent effect sustainability. The composite plate-like powder having the above-mentioned effects is obtained by using triethoxy (8,8,8,7,7,6,6,5,5,4,4,3-tridecafluorooctyl) silane, diethoxybis (8 , 8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5) , 5,4,4,3,3-tridecafluorooctyl) silane was found to be able to remarkably improve its sustainability, and the present invention was completed. That is, the present invention is as follows.
(1) Triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8,7,7, 6,6,5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4,4,3) A surface-treated powder obtained by treating the surface of a composite plate-like powder with 3-tridecafluorooctyl) silane .
(2) The composite plate-like powder is obtained by coating the surface of sericite or mica with a powder selected from silica, zirconia, titania and alumina. (1) The surface-treated powder described in 1.
(3) The surface-treated powder according to (1) or (2), wherein the composite plate-like powder is mica titania, sericite titania, or silica / iron oxide-coated sericite titania.
(4) A cosmetic comprising the surface-treated powder according to any one of (1) to (3).
(5) The cosmetic according to any one of (1) to (4), which is a cosmetic for an indoor light source.

  ADVANTAGE OF THE INVENTION According to this invention, it is the makeup cosmetics which look natural under an indoor light source, Comprising: The thing excellent in the effect sustainability can be provided.

(1) Surface-treated powder of the present invention The surface-treated powder of the present invention is triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluoro). Octyl) silane, diethoxybis (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7, (7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane , which is obtained by treating the surface of the composite plate-like powder. The composite plate-like powder is a plate-like powder used as a base and the surface thereof is coated with other powder components, particularly a metal oxide. It is also possible to form a composite, or a form in which a part of the contact portion shares a bond like a mechanochemical coating may be used. Examples of the plate-like powder include sericite, mica, and talc. Among these, sericite or mica is particularly preferable. Further, as the powder to be coated, one or more kinds selected from calcium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, silica, zirconia, titania and alumina can be preferably exemplified. Preferable examples of such a composite plate-like powder include mica titania, sericite titania, and silica / iron oxide-coated sericite titania. These already have commercial products, and such commercial products can be purchased and used. Examples of preferable commercially available products include the “Chimiron” series of Merck GmbH for mica titania, and the “cover leaf” series sold by Catalytic Chemical Industry Co., Ltd. for sericite titania. An example of cytotitania is “Derma Real Leaf” sold by Catalyst Kasei Kogyo Co., Ltd. These include triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8,7,7, 6, 6
, 5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4,4,3,3-tri) The surface-treated powder of the present invention is produced by reacting ( decafluorooctyl) silane and silylating.

In this manner, the powder was triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8, 7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4) When treating with 4,3,3-tridecafluorooctyl) silane , it may be carried out in accordance with a normal silane coupling method. For example, triethoxy (8,8,8,7 ) obtained by diluting a powder with a solvent or the like. , 7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8,7,7,6,6,5,5,4,4) 3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6) 5,5,4,4,3,3- coated with tridecafluorooctyl) silane, while reducing the pressure desired at 100 to 300 ° C., it can be obtained by performing the baking. Triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8,7,7,6,6) , 5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4,4,3,3-tri) Decafluorooctyl) silane already exists on the market, and such a commercial product can be purchased and subjected to the treatment. As such a commercial product, Dynasylan (trademark) F8261 (triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane) is available. Preferred examples can be given. Such silane coupling agents are triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8). , 7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4) , 4,3,3-tridecafluorooctyl) silane can be used alone for the surface treatment or in combination of two or more. The amount ratio of the preferable powder and perfluoroalkylsilane is 1:99 to 30:70, more preferably 2:98 to 10:90. After the perfluoroalkylsilane is uniformly coated with an appropriate solvent, for example, chloroform or methylene chloride, in an amount of 1 to 100 times, silane coupling may be performed by heat treatment and dealcoholization reaction. The surface-treated powder of the present invention produced through such a process is said to exhibit a covering power of the composite plate-like powder serving as a base that can be seen naturally under an indoor light source. It is excellent in the sustainability of its cosmetic effect without impairing its optical properties. In particular, because of its water and oil repellency, it overcomes the disadvantages of perfluoroalkylsilane-treated powders that have difficulty in adhesion to the skin, and is easily removed from the skin due to physical stress. While maintaining water and oil repellency, it has excellent adhesion to the skin. In this way, by improving the makeup of the composite plate-like powder that plays the central role of the optical effect in the cosmetic, the cosmetic durability of the entire cosmetic is significantly improved.

(2) Cosmetics of this invention The cosmetics of this invention contain the said essential component, It is characterized by the above-mentioned. The cosmetic of the present invention can be applied without particular limitation as long as it is in a dosage form that can usually contain powder. Examples of preferable dosage forms include water-in-oil emulsifier forms, oil-in-water emulsifier forms, oil gel dosage forms, solid powder dosage forms, and loose powder dosage forms. Particularly preferred is a dosage form that does not contain water and has an oil component content of 15% by mass or less, specifically a solid powder dosage form. This is because this form makes the most of the advantages of surface treatment.

The cosmetics of this invention can contain the arbitrary components normally used with cosmetics other than the said essential component. Examples of such optional components, e.g., macadamia nut oil, Abou transient oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, cured Oils such as coconut oil, hydrogenated oil, owl, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, waxes , liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin , petrolatum, hydrocarbons such as microcrystalline wax, oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, higher fatty acids such as undecylenic acid, cetyl alcohol, stearyl alcohol, Isosuteari Alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, higher alcohols such as cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, isostearate hexyl decyl, diisopropyl adipate, sebacic di-2-ethylhexyl, cetyl lactate, malate Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri isostearate trimethylolpropane, synthetic ester oils such as tetra-2-ethylhexanoate pentane pentaerythritol, dimethyl polysiloxane, methylphenyl Rokisan, linear polysiloxanes such as diphenyl polysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, cyclic polysiloxanes such as dodeca methylcyclohexane siloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxanes, oil such silicone oils of modified polysiloxanes and fluorine-modified polysiloxane, fatty acid soap (sodium laurate, sodium palmitate), potassium lauryl sulfate, an anionic surfactant such as alkyl sulfate, triethanolamine ether, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide , imidazoline-based amphoteric surfactants (2-cocoyl-2-imida Zolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine , sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (eg, glyceryl monostearate), propylene glycol fatty acid esters (eg, propylene glycol monostearate), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester Tells (POE-glycerol monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkylphenyl ethers (POE nonylphenyl) Ethers, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), sucrose fatty acid esters, nonionic surfactants, polyethylene glycols such as alkyl glucoside, glycerine, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene Recall, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, polyhydric alcohols such as 1,2-octanediol, sodium pyrrolidone carboxylic acid Moisturizing ingredients such as lactic acid and sodium lactate, surface may be treated , powder such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate body such, may be processed to the front surface, red iron oxide, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, iron blue, titanium oxide, inorganic pigments, or complexes of these inorganic pigments zinc oxide, a surface treatment may be, mica titanium, Sakanarinhaku, pearl agent such as bismuth oxychloride, is laking Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow 204 Organic dyes such as yellow 203, blue 1, green 201, purple 201, red 204 , polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer , para-aminobenzoic acid acid UV absorbers, anthranilic acid UV absorbers, salicylic acid ultraviolet absorbers, Katsura peel acid UV absorbers, Baie benzophenone-based ultraviolet absorbents, sugar-based ultraviolet absorber, 2- (2'-hydroxy-5 ' -t- octylphenyl) benzotriazole, 4-methoxy-4'-t-butyl-dibenzo yl ultraviolet absorbers such as methane, ethanol, iso Lower alcohols such propanol; vitamin A or a derivative thereof, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ or derivatives thereof, vitamin B _12, such as vitamin B ₁₅ or a derivative thereof Vitamin B , α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E such as vitamin E acetate, vitamin D, vitamin H, vitamins such as pantothenic acid, panthetin, pyrroloquinoline quinone , etc., antibacterial such as phenoxyethanol An agent etc. can be illustrated preferably. Particularly preferable among these are powders coated with a polymer or a copolymer containing acrylic acid or an ester of methacrylic acid and 2-phosphorylcorinylethanol as a constituent monomer. Such a polymer or copolymer already has a commercially available product, and such a commercially available product can be purchased and coated with powder. Examples of such commercially available products include “Lipidure HM” (polymethacryloyloxyethyl phosphorylcholine), “Lipidure PBS” (methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer) and the like sold by Nippon Oil & Fat Co., Ltd. . Further, talc is preferable as the surface-treated powder. The mass ratio of talc to the polymer or copolymer is preferably 99: 1 to 70:30, more preferably 98: 2 to 90:10. The coating treatment can be produced by spraying an aqueous solution of a polymer or copolymer onto the powder and drying it. The preferable content of such powder is 0.1 to 10% by mass, and more preferably 0.5 to 5% by mass. In this amount ratio, the adhesion of the perfluoroalkylsilane surface-treated powder to the skin can be improved.

In addition, for titanium dioxide and zinc oxide, which have the optical effect of the treated powder of the present invention and the optical effect of concealing “thickly”, the optical effect is reduced by compounding with other metal oxides. It is preferable to keep it. Examples of other metals constituting such components include iron, silicon, zinc, zirconium, aluminum and the like. The composite form is a dope form in which another metal oxide is pressed into the crystal lattice of titanium dioxide, and the fine powder of the other metal oxide and the fine powder of titanium dioxide are baked at 500 to 1000 ° C. and hardened. There is a solid solution form in which a metal oxide or hydroxide is deposited on the surface of titanium dioxide, melted at a temperature of 1000 ° C. or more and dissolved with titanium dioxide, and solidified by cooling. Any of these can be used. These powders can be produced as described above, but commercially available products can also be purchased and used. Preferred commercially available products include “Yellow Titanium” (iron oxide / titanium dioxide sintered pigment) manufactured by Mie Pigment Co., Ltd., “Taipaque TTO-F1”, “Taipaque TTO-F2”, and “Taipaque TTO” manufactured by Ishihara Sangyo Co., Ltd. -F6 "(one obtained by solidifying silica, alumina, or zirconia on the surface of titanium dioxide) is preferred. The surface of these powders may be coated with hydrogen methyl polysiloxane, lecithin, N-acyl glutamate, polyethylene, metal soap, and the like. These powders are slightly inferior to titanium dioxide itself in hiding power from ultraviolet rays, but since radical generation is extremely suppressed after absorbing ultraviolet rays, the overall protective effect against ultraviolet rays is very good. Such a powder preferably contains an amount that exhibits a hiding power effect without feeling thick, and specifically, it is preferably contained in an amount of 5 to 30% by mass, and 7 to 25% by mass. It is more preferable to contain.

  The cosmetic of the present invention can be produced by treating these essential components and optional components according to a conventional method.

  Hereinafter, examples of the cosmetic of the present invention will be described in more detail, but it goes without saying that the present invention is not limited to such examples.

<Production Example 1>
A solution of 1 part by weight of triethylamine dissolved in 100 parts by weight of ethanol was sprayed on 96 parts by weight of “Timilon MP1005”, air-dried at 40 ° C. for 2 hours, and then 4 parts by weight of “Dynasylan F8261” was added to 200 parts by weight. A solution dissolved in methylene chloride is sprayed, put in an electric furnace heated to 100 ° C., heated to 200 ° C. over 5 hours, held at 200 ° C. for 2 hours, and then room temperature over 8 hours. The surface-treated powder 1 of the present invention was obtained.

<Production Example 2>
The “Timilon MP1005” in Production Example 1 was replaced with “Derma Real Leaf N” and treated in the same manner to obtain the surface-treated powder 2 of the present invention.

<Production Example 3>
The “Timiron MP1005” in Production Example 1 was replaced with “Coverleaf PC-1035” (titanium sericite) and treated in the same manner to obtain the surface-treated powder 3 of the present invention.

A solid powder cosmetic (summer foundation), which is a cosmetic of the present invention, was produced according to the formulation shown in Table 1 below. In other words, after the ingredients of A were weighed into a Henschel mixer, mixed and stirred, pulverized with a pulverizer equipped with a 0.9mm round hole screen, returned to the Henschel mixer, and mixed while spraying the ingredients of B. The solid powder cosmetic 1 was obtained by pulverizing with a pulverizer equipped with a 1 mm herringbone screen, filling the pulverized material in a metal pan, and press molding. In the same manner, Comparative Example 1 in which the surface-treated powder 1 was replaced with “Timilon MP1005”, and 3% hydrogen methylpolysiloxane baking treatment (hereinafter sometimes simply referred to as “silicone treatment”) was replaced with “Thimilon MP1005”. Comparative Example 2, Comparative Example 3 substituted with “Thimilon MP1005” coated with 3% perfluoroalkyl phosphate diethanolamine salt and Comparative Example 4 substituted with titanium dioxide were produced.

<Test Example 1>
Using three professional panelists, for the solid powder cosmetics 1 and Comparative Examples 1 to 4, “Naturalness of makeup finish”, “Cover power” and “Long makeup” were evaluated under actual use conditions. went. The test period was set for one month, and each cosmetic was actually used at least three times during the test period. If necessary, the cosmetics were used again and evaluated according to the standard scores shown below. The results are shown in Table 2 as the number of examples. All panelists recognized that the cosmetics of the present invention containing the surface-treated powder of the present invention have an excellent make-up effect.
(Score criteria)
Score 1: Unsatisfactory score 2: Slightly unsatisfactory score 3: Slightly unacceptable Score 4: Slightly excellent score 5: Excellent

<Test Example 2>
To confirm the effect of the Test Example 1 as the number value, by applying the cosmetic composition of 40mg to the site of 2 cm × 4 cm provided on the upper inner arm portion, measured gloss values (G value) in the grayed b Sumeta, naturally it After 3 hours, the G value was measured again. The results are shown in Table 3. From this, it can be seen that the cosmetic of the present invention has little change in G value with time, and natural and glossy gloss lasts for a long time.

In the same manner as in Example 1, a solid powder cosmetic 2 as a cosmetic of the present invention was produced according to the following formulation. The evaluation of Test Example 1 by one expert panelist is score 5 in all of “naturalness of makeup finish”, “covering power”, and “holding makeup”, and the change in G value of Test Example 2 is 6 .4 → is 6.3, it is found to have the same effect as cosmetic of example 1.

In the same manner as in Example 1, a solid powder cosmetic 3 as a cosmetic of the present invention was produced according to the formulation shown in Table 5 below. The evaluation of Test Example 1 by one expert panelist is score 5 in all of “naturalness of makeup finish”, “covering power”, and “long makeup”, and the change in G value of Test Example 2 is 5 .1 → 4.8, it is found to have the same effect as cosmetic of example 1.

  INDUSTRIAL APPLICABILITY The present invention can be applied to cosmetics having a natural finish and excellent makeup lasting.

Claims (5)

Triethoxy (8,8,8,7,7,6,6,5,5,4,4,3,3-tridecafluorooctyl) silane, diethoxybis (8,8,8,7,7,6,6) , 5,5,4,4,3,3-tridecafluorooctyl) silane or ethoxytris (8,8,8,7,7,6,6,5,5,4,4,3,3-tri) A surface-treated powder obtained by treating the surface of a composite plate-like powder with decafluorooctyl) silane . The composite plate-like powder is obtained by coating the surface of sericite or mica with a powder selected from silica, zirconia, titania and alumina. Surface treatment powder. The surface-treated powder according to claim 1 or 2, wherein the composite plate-like powder is mica titania, sericite titania, or silica / iron oxide-coated sericite titania. A cosmetic comprising the surface-treated powder according to any one of claims 1 to 3 . The cosmetic according to any one of claims 1 to 4 , wherein the cosmetic is an indoor light source cosmetic.