JP2008137944A5 - - Google Patents

Description

Powder for cosmetics and cosmetics containing the same

The present invention relates to a powder for cosmetics and a cosmetic having improved makeup containing the powder.

Solid powder cosmetics obtained by pressure-molding powders coated with fats and oils have an advantage that a beautiful finish can be achieved with a simple cosmetic operation, and thus have been widely used as foundations and the like. On the other hand, there were also disadvantages such as a dry feeling due to the oil-absorbing property of the powder and a tendency to break the makeup. Regarding dry feeling, the dry feeling was remarkably reduced by applying silicone treatment such as baking with hydrogenmethylpolysiloxane to the powder and coating the powder with an oil component ( see, for example, Patent Document 1). ). For the makeup, the surface treatment with silicone, by coating a highly viscous oil, by improving the adhesion of the decorative film has been improved, practically facelift, compared including the foundations of emulsifying, frequent It was the current situation that we had to. That is, to impart hydrophobicity to powders, or the powder in the oily substance by to impart tackiness it is presumed that resolution can such have of粧崩Re factors exists. That is, it can be said that the development of a technique for further improving the longevity of the makeup in the solid powder cosmetic is desired.

On the other hand, many plate-like powders have various optical effects in terms of cosmetic finish. If sericite is used, it has the effect of creating a natural luster, and if it is mica, it gives a three-dimensional effect. It can be given with a glossy feeling, and if it is titanium mica, it can create a bright and three-dimensional impression with pearl luster. Is being noted among them, the scaly surface of the powder, such as powder der ruse Risaito for cosmetics exhibiting natural covering power silica, alumina, titanium dioxide, a metal oxide such as iron oxide coated a composite powder (e.g., refer to Patent Document 2, Patent Document 3, Patent Document 4). In the plate-like powder including such a composite powder, it is difficult to try to improve the cosmetic durability by the surface treatment as described above. This is because the coating layer formed on the powder surface by such coating may significantly impair the optical effect of the composite, or it is plate-like, so the top of sweat etc. is hydrophobized. This is because the dried powder slides and moves. Therefore, in the case where the cosmetic contains such a powder whose surface cannot be treated, the effect of the surface treatment is remarkably reduced. Such a tendency is particularly remarkable in the composite powder. In such a composite powder, it can be said that development of a technique for improving the longevity of makeup without impairing the optical effect has been desired.

On the other hand, for the purpose of suppressing the feeling of drying by the powder or imparting moisture retention to the powder, the technology of coating the powder with a polymer or copolymer having an acrylic acid derivative as a constituent monomer and including it in cosmetics has already been developed. that have known (e.g., Patent Document 5, refer to Patent Document 6), it is completely unknown relationship with makeup. Also, there is no known technique for coating the composite powder with such a polymer or copolymer.

Japanese Patent Laid-Open No. 03-9964 WO99 / 49834 Japanese Patent Laid-Open No. 11-60444 JP 11-209239 A Japanese Patent Laid-Open No. 2004-189652 JP 07-118123 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide a means for improving the cosmetic durability of a composite powder having a plate shape.

In view of such a situation, the present inventors have sought for means for improving the longevity of the composite powder having a plate-like shape, and as a result of earnest research efforts , It has been found that such a long-lasting improvement in makeup can be achieved by coating a polymer or copolymer having an acrylic acid derivative represented by the general formula (1) described below as a constituent monomer. . That is, the present invention is as follows.
(1) 1) A composite powder in which the surface of sericite is coated with one or more metal oxides selected from silica, alumina, iron oxide, titanium dioxide, zinc oxide and zirconia. A powder for cosmetics, which is further coated with a polymer or copolymer containing an acrylic acid derivative represented by the general formula (1) shown in FIG.

一般式（１）
（但し、式中Ｒ ₁ は水素原子又は炭素数１〜４のアルキル基を表し、Ｒ ₂ は糖残基、アミノ酸残基又はホスホリルコリン残基を表し、ｎは０〜４の整数を表す。）

General formula (1)
(In the formula, R ₁ represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R ₂ represents a sugar residue, an amino acid residue or a phosphorylcholine residue, and n represents an integer of 0 to 4).

(2) the polymer to copolymer is characterized in that it is intended to be selected polymethacryloylacetones oxyethyl phosphorylcholine, polymethacryloylacetones Le lysine, from polymethacryloylacetones oxyethyl glucose and methacrylic acid butyl methacryloyloxyethyl phosphorylcholine copolymer, ( The powder for cosmetics as described in 1) .
(3) The coating amount of the polymer or copolymer is 0.1 to 10% by mass with respect to the total mass of the powder for cosmetics , either (1) or (2) Powder for cosmetics according to crab .
(4) A cosmetic comprising the cosmetic powder according to any one of (1) to ( 3) .
(5) The cosmetic according to (4) , which is a solid powder cosmetic.

  ADVANTAGE OF THE INVENTION According to this invention, the means which can improve the cosmetic durability of the composite powder which has plate shape can be provided.

(1) powder cosmetics of the powder substrate and comprising a plate-like composite powder present invention of the present invention, as a substrate sericite is a plate-like powder, and this coating the metal oxide composite The powder is further coated with a polymer or copolymer having an acrylic acid derivative represented by the general formula (1) as a constituent monomer. The metal oxide, shea silica, alumina, titanium dioxide, zinc oxide, zirconia, iron oxide, or yellow iron oxide include iron oxide such as triiron tetroxide, these are not covered by the independent state Alternatively, it may be coated in a composite form such as a solid solution or a sintered body. Such metal oxides may be a single species or two or more species. The composition of the mass ratio in such a powder is such that the metal oxide is preferably 10 to 60% by mass with respect to 40 to 90% by mass of the plate-like powder that becomes the base, and the plate-like powder that becomes the base The metal oxide is more preferably 20 to 40% by mass with respect to 60 to 80% by mass. As such composite powder, is called a titanium sericite, against sericite 60-90 wt%, those coated with titanium dioxide of the remaining mass, sericite 40 to 80 wt%, alumina “Coverleaf AR20121M” (catalyst 60% by mass, silica 10% by mass) manufactured by Catalyst Kasei Kogyo Co., Ltd., having a total mass of silica of 0.1 to 40% by mass and other metal oxides of 5 to 20% by mass. %, Alumina 20% by mass, titanium dioxide 10% by mass), “Derma Real Leaf N” (silica 10% by mass, iron oxide 10% by mass, titanium dioxide 5% by mass coated sericite), “Cut Leaf AV” (Alumina 0 8% by mass, 17.2% by mass of titanium dioxide, 1.6% by mass of Bengala, 78.4% by mass of sericite, and 2% by mass of zinc stearate) It can be suitably exemplified. These are all commercially available. Even those which do not have such a structure can be prepared and used according to a conventional method. In the preparation, sericite, which is a plate-like powder , is dispersed in an aqueous medium in which a soluble salt of a metal constituting a metal oxide is dissolved, and an alkali is gradually added to this to neutralize the metal hydroxide. It can be manufactured by precipitating and firing this. Such powder may be further subjected to surface treatment, but preferred surface treatments include coating treatment with fatty acid metal soap such as zinc stearate and aluminum stearate, and N-acyl glutamate such as aluminum N-stearoyl glutamate. A covering process etc. can be illustrated.

The powder of the present invention is produced by coating the composite powder thus obtained with a polymer or copolymer having an acrylic acid derivative represented by the general formula (1) as a constituent monomer. Regarding such a polymer, the monomer constituting the polymer includes an acrylic acid derivative represented by the general formula (1) as a constituent monomer. In the general formula (1), R1 is a hydrogen atom or a carbon number of 1 to 1. Represents an alkyl group of 4, more preferably a methyl group. R2 represents a sugar residue, an amino acid residue or a phosphorylcholine residue, which includes a glucose residue, a fructose residue, a ribose residue, a deoxyribose residue, an arabinose residue, a galactose residue, a rhamnose residue. Examples thereof include a group, and particularly preferably a glucose residue. As the amino acid residue, for example, a lysine residue, a glycine residue, an alanine residue, a glutamine residue, a glutamic acid residue and the like can be preferably exemplified, and a lysine residue can be particularly preferably exemplified. N represents an integer of 0 to 4, more preferably 0 or 2. Specific examples of the acrylic acid derivative represented by the general formula (1) include methacryloyloxyethyl glucosyl ether, methacryloyloxyethyl phosphorylcholine, methacryloyl lysine, and the like. In the copolymer, monomers used for polymerization together with the acrylic acid derivative represented by the general formula (1) include, for example, acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, propyl acrylate, acrylic Methacrylates such as butyl acrylate, hexyl acrylate, octyl acrylate, stearyl acrylate, etc., alkyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, hexyl methacrylate, octyl methacrylate, stearyl methacrylate, etc. Preferable examples include acid alkyl, vinyl acetate, vinyl alcohol, styrene, α-methylstyrene and the like. By polymerizing these monomers using, for example, azobisisobutyronitrile as a catalyst according to a conventional method, the polymer or copolymer can be produced. Some of these polymers or copolymers are already on the market, and such commercial products can be purchased and used. Examples of such commercially available products include “Lipidure HM” (polymethacryloyloxyethyl phosphorylcholine), “Lipidure PMB” (methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer) sold by Nippon Oil & Fats Co., Ltd., Nippon Seika Co., Ltd. “P-GEMA” (polymethacryloyloxyethyl glucosyl ether) sold by the company, “PM lysine” (polymethacryloyl lysine) sold by Gifu Shellac Co., Ltd. and the like can be suitably exemplified.

The method for coating the composite powder with these polymers or copolymers may be carried out in accordance with a conventional method. For example, the polymer or copolymer is added in an amount of 0.8 to 99.9% by mass with respect to 90 to 99.9% by mass of the composite powder as the substrate. The polymer or copolymer is solubilized or dispersed 1 to 10 times by mass in a solvent or dispersion medium so as to be 1 to 10% by mass, preferably coated at 20 to 100 ° C., and optionally under reduced pressure conditions. It can be produced by removing the solvent. As such a solvent or dispersion medium, one or more selected from water, ethanol, isopropanol and butanol can be suitably exemplified.

The powder of the present invention obtained in this way exhibits the optical effect of the natural covering power of the composite powder composed of sericite as a base, and the cosmetic durability is remarkably improved.

(2) Cosmetics of this invention The cosmetics of this invention contain the powder for cosmetics of the said this invention, It is characterized by the above-mentioned. As the cosmetic of the present invention, a solid powder cosmetic is preferable. The solid powder cosmetic referred to in the present invention is obtained by coating powder with an oil / fat component of 30% by mass or less as desired, and molding the solid into a solid, and suitable examples of the molding means include pressure molding. it can. In the cosmetic of the present invention, the cosmetic powder as the essential component may contain only one species or a combination of two or more species. The content of the cosmetic powder of the present invention, which is an essential component in the cosmetic of the present invention, is not particularly limited as long as the optical effect of the powder appears, but the total amount of the cosmetic is not limited. 1-60 mass% is preferable with respect to the whole quantity, More preferably, it is 10-40 mass%. In such a quantity range, optical effects such as natural covering power of expression is applied to cosmetics.

The external preparation for skin of the present invention can contain, in addition to such components, optional components that are usually used in powder cosmetics. 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, molasses, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin , Hydrocarbons such as petrolatum, 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, 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 (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.), 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; para-aminobenzoic 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 Vitamin B such as vitamin A or a derivative thereof, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ or a derivative thereof, vitamin B ₁₂ , vitamin B ₁₅ or a derivative 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 components according to a conventional method.

Hereinafter, the present invention will be described in more detail with reference to examples and reference examples . Needless to say, the present invention is not limited to these examples.

<Reference Example 1>
According to the formulation shown below, was prepared the powder for reduction粧料. That is, using a disper, B was gradually added to this while stirring i at 200 rpm. 700 after all is added
0 rev / min speed and 10 minutes dispersion, after vacuum defoaming this dried 4 days in vacuo at 20 ° C., and pulverized in a pulverizer equipped with 0.7mmφ round hole screen Thereafter, reduction粧料Powder 1 was obtained.

<Example 1>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 2 for reduction粧料of the present invention.

<Example 2>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 3 for reduction粧料of the present invention.

<Example 3>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 4 for粧料of the present invention.

<Example 4>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 5 for reduction粧料of the present invention.

<Example 5>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 6 for reduction粧料of the present invention.

<Example 6>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 7 for reduction粧料of the present invention.

<Example 7>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 8 for reduction粧料of the present invention.

<Example 8>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 9 for reduction粧料of the present invention.

<Example 9>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 10 for reduction粧料of the present invention.

<Example 10>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 11 for reduction粧料of the present invention.

<Example 11>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 12 for reduction粧料of the present invention.

<Example 12>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 13 for reduction粧料of the present invention.

<Example 13>
Prepared according to the following formulation in the same manner as in Reference Example 1 to obtain a powder 14 for reduction粧料of the present invention.

<Reference Example 2 >
As in Reference Example 1 , Comparative Example 1 was obtained by coating sericite with “Lipidure HM”.

<Reference Example 3 >
As in Reference Example 1 , Comparative Example 2 was obtained by coating sericite with “Lipidure PMB”.

<Reference Example 4 >
As in Reference Example 1 , Comparative Example 3 was obtained by coating sericite with “p-GEMA”.

<Reference Example 5 >
As in Reference Example 1 , Comparative Example 4 was obtained by coating sericite with “PM lysine”.

<Example 14>
A solid powder cosmetic, which is the cosmetic of the present invention, was prepared according to the formulation shown below. That is, the ingredients of A are mixed with a Henschel mixer, pulverized with a pulverizer equipped with a 0.9mmφ round hole screen, sprayed with the ingredients of B while being mixed again with a Henschel mixer, coated, and fitted with a 1mm herringbone screen. Trituration with the pulverizer, then filled in a metal dish, and cosmetics 1 reference to pressure molding to obtain a cosmetic 2-5. In a similar manner, Comparative Examples 5 to 9 using untreated powder and Comparative Example 10 substituted with the powder of Comparative Example 1 were also produced. About these, after providing a 2 cm × 4 cm site on the inner side of the forearm and marking so that the location of the site can be understood, 40 mg of the sample was applied using a urethane chip, and after spending 4 hours in a normal living state, Remove the 2 cm diameter pulp disc impregnated with 1% ethanolic solution of picric acid at the site for 30 seconds, quickly wash the entire forearm with soap under warm running water, and leave it for 10 minutes after washing. The color difference (ΔE) between the other part and the part where the pulp disk was placed was measured with a Konica Minolta color difference meter CR400, and the degree of dyeing of picric acid was examined. The results are also shown in Table 20. Thus, the cosmetic of the present invention suppresses the dyeing of picric acid compared to the reference cosmetic and the cosmetic of the comparative example, and this effect is caused by the cosmetic disintegration of the powder for the cosmetic of the present invention. It can be seen that this is due to the effect of making it difficult to perform.

<Example 15>
In the same manner as in Example 14 , cosmetics 6 to 8, which are the cosmetics of the present invention, were prepared according to the following formulation and evaluated in the same manner. Similarly, Comparative Example 11 using Comparative Example 2 as a powder was also produced and evaluated. The results are shown in Table 22. The same results as in Example 14 were obtained.

<Example 16>
In the same manner as in Example 14 , cosmetics 9 to 11, which are the cosmetics of the present invention, were prepared according to the following formulation and evaluated in the same manner. Similarly, Comparative Example 12 using Comparative Example 3 as a powder was also produced and evaluated. The results are shown in Table 24. The same results as in Example 14 were obtained.

<Example 17>
In the same manner as in Example 14 , cosmetics 12 to 14, which are the cosmetics of the present invention, were prepared according to the following formulation and evaluated in the same manner. Similarly, Comparative Example 13 using Comparative Example 4 as a powder was also produced and evaluated. The results are shown in Table 26. The same results as in Example 14 were obtained.

  The present invention can be applied to powder solid cosmetics.

Claims (5)

1) A composite powder in which the surface of sericite is coated with one or more metal oxides selected from silica, alumina, iron oxide, titanium dioxide, zinc oxide and zirconia. A powder for cosmetics, which is further coated with a polymer or copolymer having an acrylic acid derivative represented by formula (1) as a constituent monomer.

General formula (1)
(In the formula, R ₁ represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R ₂ represents a sugar residue, an amino acid residue or a phosphorylcholine residue, and n represents an integer of 0 to 4). The polymer or copolymer, polymethacryloylacetones oxyethyl phosphorylcholine, polymethacryloylacetones Le lysine, characterized in that one selected from polymethacryloylacetones oxyethyl glucose and methacrylic acid butyl methacryloyloxyethyl phosphorylcholine copolymer, in claim 1 The powder for cosmetics as described. The coating amount of the polymer or copolymer is 0.1 to 10% by mass with respect to the total mass of the powder for cosmetics, according to any one of claims 1 and 2 . Powder for cosmetics. Cosmetics containing the powder for cosmetics of any one of Claims 1-3 . The cosmetic according to claim 4, wherein the cosmetic is a solid powder cosmetic.