JP2007197372A5 - - Google Patents

Description

Powders coated with metal oxides on plate-like powders , such as titanium mica and titanium sericite, have a specific optical effect of metal oxides fixed on a flat surface. It is known to be useful. For example, titanium mica has a pearly luster due to the generation of interference light by titanium dioxide particles, and titanium sericite has the effect of preventing the appearance of whiteness even though it has an ultraviolet protection effect. . By utilizing such an effect, that is also known art to be contained in cosmetics (e.g., see Patent Document 1). On the other hand, it has been found that the surface characteristics are changed by such coating, and the durability of the makeup effect becomes a problem. From such a viewpoint, a technique for treating and using the surface of such a powder is also known ( see, for example, Patent Document 2 and Patent Document 3 ). Sustainability has been improved by such a technique, but it has never been improved enough, and further improvement in sustainability has been desired.

In view of such a situation, the present inventors have sought a means for improving the cosmetic durability of a plate-like powder having a metal oxide coating on its surface in a cosmetic powder. As a result of diligent research efforts, such a powder for cosmetics is obtained by coating a plate-like powder having a certain aspect ratio and having a metal oxide coating on the surface with a water-soluble sugar derivative. It has been found that it has characteristics, and has led to the completion of the invention. That is, the present invention is as follows.
(1) on the surface of the aspect ratio of 10 or more plate-like powder, titanium, a metal oxide coated plate-like powder coating of oxide of a metal selected from zinc and cerium is present, coated with a water-soluble sugar derivative Cosmetic powder.
(2) The powder for cosmetics according to (1), wherein the plate-like powder is selected from hekakai sericite, hekakai mica and hekikai talc .
(3) The powder for cosmetics according to (1) or (2) , wherein the plate-like powder is defined as a powder having an aspect ratio of 10 or more.
(4) A mass ratio of the metal oxide-coated plate-like powder and the water-soluble sugar derivative is 99.99: 0.01 to 90:10, any of (1) to (3) A powder for cosmetics according to claim 1.
(5) (1) to (4) cosmetic containing a powder cosmetic composition according to any one.
(6) characterized in that it is a make-up cosmetic for ultraviolet-proof protection, cosmetic according to (5).

(1) Powder for cosmetics of the present invention The powder for cosmetics of the present invention is obtained by converting a metal oxide-coated plate-like powder having a metal oxide coating on the surface of the plate-like powder into a water-soluble sugar derivative. It is characterized by being coated with. Here, as the metal oxide should be present on the front surface of the plate-like powder, titanium dioxide, zinc oxide, one or a composite oxide mainly composed of two or more kinds selected cerium oxide and from these It can be mentioned, as the main component, which means that it contains at least 70% by weight of the subject ingredient. In the coating of the plate-like powder of such a component, any powder can be used for the coating in addition to these essential constituent metal oxides as long as the effects of the present invention are not impaired. Such optional powder is not particularly limited as long as it is used in cosmetics and does not belong to the above-mentioned configuration, but preferred examples include magnesium carbonate, calcium carbonate, polyethylene powder, acrylic resin powder and the like. it can. Here, the coating means that there exists a form in which at least a weak bond exists between the coating and the coating, and specifically, a mechanochemical treatment, a baking treatment, and a binder in the presence of the binder. It is preferable that a treatment for inducing the bond, such as a treatment for forming a chemical bond with, is performed. The quantity ratio between the component to be coated and the plate-like powder is preferably 1:99 to 50:50, more preferably 10:90 to 40:60.

Further, examples of the plate-like powder to be coated, aspect ratio can be mentioned those of 10 or more, favorable preferred, more preferably those of 30 to 150, more preferably those of 45 to 120 is there. This is because the treatment effect of the water-soluble sugar derivative, which will be described later, becomes more realistic by increasing the aspect ratio and increasing flatness. Preferable specific examples of the plate-like powder to be the base of the powder of the present invention include sericite (30 to 40), talc (10 to 20), mica (20 to 40), “hekikaiseri “Site” (75 to 85; manufactured by Yodogawa Kogyo Co., Ltd.), “Hekikai Mika” (95 to 105; manufactured by Yodogawa Kogyo Co., Ltd.), “Hekikai Talc” (50 to 60; manufactured by Yodogawa Kogyo Co., Ltd.) and the like. “Kayserisite”, “Hikakai mica”, “Hekikai talc” are particularly preferred. Here, these three kinds of powders are produced through a process of cleaving in the crystal direction (cleaving process) in a state in which sericite, mica, and talc are impregnated with water, respectively. It can be said that the plate-like powder produced through such a cleavage process is preferable as the base of the cosmetic powder of the present invention.

In the cosmetics of this invention, the arbitrary component normally used with cosmetics other than the said essential component can be contained. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil Oil, wax, oil such as beeswax, canola wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum , Hydrocarbons such as microcrystalline wax; higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid; cetyl alcohol, stearyl alcohol, isostearyl Higher alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol; cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid 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 Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate; dimethylpolysiloxane, methylphenylpoly Linear polysiloxanes such as oxane and diphenylpolysiloxane; cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexanesiloxane; amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oils such as modified polysiloxanes such as fluorine-modified polysiloxanes; Anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfates; Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride and 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.), and amphoteric surfactants such as acylmethyltaurine; sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), 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 alkyl phenyl 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.), Nonionic surfactants such as sucrose fatty acid ester and alkyl glucoside; polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene Polyhydric alcohols such as recall, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol; sodium pyrrolidonecarboxylate Moisturizing ingredients such as lactic acid and sodium lactate; powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc. whose surface may be treated Body, the surface may be treated, inorganic pigments such as bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide; surface may be treated, mica Pearl agents such as titanium, fish phosphorus foil, bismuth oxychloride; red 202 which may be raked, red Color 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow 204, Yellow 203, Blue 1 No., Green 201, Purple 201, Red 204, etc .; Organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer; Paraaminobenzoic acid UV absorbers; Anthranils Acid UV absorbers; salicylic acid UV absorbers ; cinnamic acid UV absorbers ; benzophenone UV absorbers; sugar UV absorbers; 2- (2′-hydroxy-5′-t-octylphenyl) benzotriazole; UV absorbers such as 4-methoxy-4′-t-butyldibenzoylmethane; lower alcohols such as ethanol and isopropanol Vitamins such as vitamin A or derivatives 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 ₁₂ , vitamin B ₁₅ or derivatives thereof; Vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin D, vitamin H, pantothenic acid, pantethine, pyrroloquinoline quinone and the like; antibacterial agents such as phenoxyethanol are preferred It can be illustrated. The cosmetic of the present invention can be produced by treating these essential components and optional components according to a conventional method.

Claims (6)

On the surface of the aspect ratio of 10 or more plate-like powder, titanium, zinc, and metal oxide coated plate-like powder coating of oxide of a metal selected from cerium present, is coated with a water-soluble sugar derivative Become a powder for cosmetics. The powder for cosmetics according to claim 1, wherein the plate-like powder is selected from hekakai sericite, hekakai mica and hekikai talc . The powder for cosmetics according to claim 1 or 2 , wherein the water-soluble sugar derivative is hyaluronic acid and / or a salt thereof. The mass ratio of the metal oxide-coated plate-like powder and the water-soluble sugar derivative is 99.99: 0.01 to 90:10, according to any one of claims 1 to 3. Powder for cosmetics. Cosmetics containing the powder for cosmetics of any one of Claims 1-4 The cosmetic according to claim 5, which is a makeup cosmetic for UV protection.