JP2012211113A - Solid powder cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid powder cosmetic in which, even when a cosmetic base and a volatile solvent are mixed to be made a slurry shape, and the same is sterically molded, the removal of the solvent is easily performed, and which can be molded to various shapes in spite of its light stretching and soft sense of use, has excellent impact resistance and has excellent uniformity and adhesion of a cosmetic film as well.SOLUTION: In the cosmetic obtained by mixing the cosmetic base essentially composed of powder with the volatile solvent to be made a slurry shape, molding the same, and thereafter removing the volatile solvent, the cosmetic base includes the following components (A) and (B): (A) polyethylene terephthalate pulverized powder with the average particle diameter of 1 to 30 μm; and (B) planar powder, and also, the surface is sterically molded.

Description

  In the cosmetic obtained by mixing a cosmetic base material containing powder as a main component with a volatile solvent to form a slurry, molding this, and then removing the volatile solvent, polyethylene terephthalate fine pulverization The present invention relates to a solid powder cosmetic comprising a powder and a plate-like powder, and the surface is three-dimensionally molded. The present invention relates to a solid powder cosmetic that can be molded into various shapes, has excellent impact resistance, and has excellent uniformity and adhesion of a decorative film.

Conventionally, in solid powder cosmetics, various sensuality, texture, and color tone have been produced by changing the composition and blending amount of oil agent, coloring pigment, glitter pigment, extender powder, and excipient. However, recent solid powder cosmetics are not limited to aesthetics due to color tone and pearly feeling, and attempts have been made to form three-dimensionally in order to further improve the design of cosmetics.
Moreover, in the molding method of solid powder cosmetics, a compression molding method in which a composition containing powder as a main component and an oil agent or the like dispersed therein is filled in a container such as a dish and pressed, or a wet filling method using a solvent There is a method of forming into a solid state by a so-called slurry filling method or the like.
The wet filling method is excellent in terms of loosening and having a uniform cosmetic film, but when removing the solvent, it may be difficult to remove due to the affinity with the cosmetic ingredients, and as a result, after drying There may be a problem that unevenness is observed on the surface of the cosmetic and a problem that impact resistance is lowered.

When the solid powder cosmetic was three-dimensionally molded, the three-dimensional part was particularly vulnerable to impacts compared to the one molded into a flat surface. When the strength is increased, there is a problem that the feeling of use deteriorates. Conversely, when a soft feeling of use is pursued, there is a case where it cannot be molded in three dimensions, and various studies have been made to solve these problems.
For example, a cosmetic material obtained by mixing a cosmetic base material with an aqueous solvent and molding it, and removing the solvent as a slurry, contains a specific amount of fumed silicic acid anhydride, starch, and a water-swellable clay mineral. There is a technique (see, for example, Patent Document 1) that has excellent usability such as peeling and skin, excellent color development, and sufficient strength in use (for example, refer to Patent Document 1). Therefore, by combining the water-swellable clay mineral with a specific average particle size, the inorganic powder coated with a specific surface coating agent, and a hydrocarbon-based oil agent, a three-dimensional surface with an uneven pattern is formed on the surface. There is a technology that does not give a powdery appearance with excellent impact resistance and uniform spread even for a typical pattern. Moreover, the method of shape | molding three-dimensionally by mix | blending a fatty acid metal salt with a cosmetics base material using the wet filling method using a solvent (for example, refer patent document 3) is mention | raise | lifted.
On the other hand, a technique for containing polyethylene terephthalate powder in cosmetics in place of conventional organic cosmetic powders has been studied. (For example, see Patent Document 4)

JP 2006-282583 A JP 2008-174492 A JP 2010-163368 A JP 2008-063305 A

In the prior art, a cosmetic base material is mixed with a volatile solvent to form a slurry, and when this is three-dimensionally molded, it is more difficult to remove the solvent than to mold it into a flat surface.
In addition, when strength sufficient to withstand impacts is given, the color of the coating film deteriorates due to poor adhesion to the props, leading to spread and a decrease in feeling of use.
Therefore, the object of the present invention is to provide a soft and soft feeling of elongation, but it is easy to remove the solvent when molded into a three-dimensional shape, can be molded into various shapes, has excellent impact resistance, and has a cosmetic effect. An object of the present invention is to provide a solid powder cosmetic excellent in film uniformity and adhesion.

  As a result of earnest research to solve the above problems, the present inventor has combined the finely pulverized polyethylene terephthalate powder having a specific particle size and the plate-like powder in a wet molding method, thereby finely pulverizing the polyethylene terephthalate powder. Increases the packing density of the entire system by filling the gaps between the plate-like powders, and the presence of the finely pulverized polyethylene terephthalate powder improves the escape of the solvent, so that the skin feels better when applied onto the skin. The present inventors have found that a solid powder cosmetic can be obtained that has a smooth use feeling, can be molded into a three-dimensional shape, and has sufficient strength for use.

That is, the present invention
[1] In a cosmetic obtained by mixing a cosmetic base material containing powder as a main component with a volatile solvent to form a slurry, molding this, and then removing the volatile solvent.
The cosmetic base material comprises the following components (A) and (B):
(A) A solid powder cosmetic comprising a finely pulverized polyethylene terephthalate powder (B) having a mean particle diameter of 1 to 30 μm and a three-dimensional surface.
[2] The solid powder cosmetic according to [1], wherein the blending mass ratio (A) / (B) of the component (A) and the component (B) is 1/20 to 2/1.
[3] The solid powder cosmetic according to [1] or [2], further comprising an oil component as the component (C).
[4] The solid powder cosmetic according to [3], wherein the oil component of the component (C) is a polar oil.
[5] The solid powder cosmetic according to [3], wherein the oil component of the component (C) is a lipophilic sorbitan surfactant.
[6] The solid powder cosmetic according to [3], wherein the oil component of the component (C) is an ultraviolet absorber.
[7] The solid powder cosmetic according to [3], wherein the oil component of the component (C) is a partially crosslinked organopolysiloxane polymer.
[8] The solid powder cosmetic according to any one of [1] to [7], further comprising an organically modified synthetic clay mineral as component (D).

  The solid powder cosmetic of the present invention is a mixture of a cosmetic base material with a volatile solvent to form a slurry, and even when this is three-dimensionally molded, the solvent can be easily removed, and the spread is light and soft. Although it has a feeling of use, it can be molded into various shapes, has excellent impact resistance, and is excellent in uniformity and adhesion of a decorative film.

Hereinafter, the configuration of the present invention will be described in detail.
The finely pulverized polyethylene terephthalate powder having an average particle diameter of 1 to 30 μm used in the present invention is a powder obtained by finely pulverizing polyethylene terephthalate. For example, polyethylene terephthalate consisting of crystalline and amorphous is brought into contact with ethylene glycol in the presence or absence of a depolymerization catalyst such as sodium hydroxide, and the amorphous part is depolymerized and eluted to obtain porous. The porous polyethylene terephthalate can be obtained by finely pulverizing this porous polyethylene terephthalate to an average particle size of 1 to 30 μm with a pulverizer such as a rod mill, a ball mill, a hammer mill, a disk mill, or a jet mill. 2006-328251). The polyethylene terephthalate finely pulverized powder may be obtained by crystallizing a polyethylene terephthalate resin, first coarsely pulverized until the average particle size becomes about 500 μm, and then finely pulverized with an average particle size of 10-30 μm while supplying cold air. (See JP 2007-77259 A).

The polyethylene terephthalate finely pulverized powder used in the present invention is polyethylene terephthalate atomized by pulverization, and therefore its shape is indefinite. By blending the finely pulverized polyethylene terephthalate powder in the present invention, the impact resistance of the solid powder cosmetic can be improved. The average particle diameter of the finely pulverized polyethylene terephthalate powder is 1 to 30 μm, preferably 5 to 10 μm. When the average particle diameter of the finely pulverized polyethylene terephthalate powder is less than 1 μm, the smooth feel at the time of coating cannot be sufficiently exhibited, and when it exceeds 30 μm, the impact resistance cannot be sufficiently improved. As a commercially available product of this finely pulverized polyethylene terephthalate powder, there is Snowleaf P (manufactured by Oken).
The blending amount of the finely pulverized polyethylene terephthalate powder in the solid powder cosmetic of the present invention is preferably 3 to 60% by mass (hereinafter simply indicated as “%”), more preferably 5 to 25%. Within this range, it is effective to remove the volatile solvent. Therefore, a solid powder cosmetic that allows easy removal of the solvent even when the cosmetic base material is made into a slurry and is three-dimensionally molded. Obtainable.

Examples of the component (B) plate powder used in the present invention include inorganic powders, organic powders, glitter powders, and composite powders. Specific examples include white inorganic pigments such as barium sulfate, mica, synthetic phlogopite, synthetic sericite, boron nitride, silicon carbide, aluminum silicate, magnesium silicate, magnesium aluminum silicate, cleaved talc, plate-like anhydrous silica Acid, glass, aluminum oxide, magnesium oxide, calcium carbonate, magnesium carbonate, hydroxyapatite, kaolin, white body powder, plate-like bismuth oxychloride, titanium dioxide-coated mica, iron oxide mica titanium, bituminized mica titanium, carmine treatment Mica titanium, fish scale foil fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, barium sulfate coated mica titanium, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene Examples include glitter powders such as lamellar agents at the end of phthalate / polymethyl methacrylate laminated films, and organic low molecular weight powders such as N-acyl lysine. These powders can be used singly or in combination. Further, a composite material may be used. These powders are one or two of fluorine compound, silicone compound, metal soap, lecithin, hydrogenated lecithin, collagen, hydrocarbon, higher fatty acid, higher alcohol, ester, wax, wax, surfactant and the like. Surface treatment may be performed using seeds or more. Examples of commercially available products include PDM-20L and PDM-40L (both manufactured by Topy Industries, Ltd.).
The surface treatment includes, for example, silicon dioxide treatment, aluminum oxide treatment, dimethylpolysiloxane, methylhydrogenpolysiloxane, treatment with a silicone compound such as trimethylsiloxysilicic acid, perfluoropolyether phosphate, perfluoroalkyl phosphate, Treatment with fluorine compounds such as fluorine-modified silicone, metal soap treatment with zinc laurate, amino acid treatment with N-long chain acylamino acid, oil treatment with higher fatty acids, higher alcohols, esters, waxes, treatment with hydrogenated phospholipids N-octyl silylation treatment that is a silane coupling agent, isopropyl triisostearoyl titanate treatment that is a titanate coupling agent, and the like.
The blending amount of the component (B) in the solid powder cosmetic of the present invention is preferably 5 to 70%, more preferably 25 to 50%. If it is within this range, it is easy to loosen and a cosmetic with a uniform makeup film can be obtained.

  The blending mass ratio (A) / (B) of the component (A) and the component (B) in the solid powder cosmetic of the present invention is preferably 1/70 to 18/1, more preferably 1/20 to 2/1. Is more preferable, and 1/10 to 2/3 is more preferable. This range is preferable in that good moldability of the component (A) can be obtained. When the blending mass ratio (A) / (B) of the component (A) and the component (B) is within this range, a three-dimensionally molded product having a very good impact resistance can be obtained, and the elongation spread and cosmetic effect can also be obtained. It is preferable because it can be obtained sufficiently.

  In addition to the components (A) and (B), other powders can be added to the solid powder cosmetic of the present invention to such an extent that the effects of the present invention are not impaired. Powders that can be blended in the present invention are those used for purposes such as colorants, feel modifiers, excipients, UV screening agents, pearl agents, etc., and powders used in ordinary cosmetics are used, It is not limited by the shape of a sphere, needle, etc., the particle size of fumes, fine particles, pigment grades, etc., and the particle structure of porous, non-porous, etc., inorganic powders, organic powders, dye powders And composite powders. Specifically, inorganic powders such as titanium oxide, zinc oxide, talc, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zirconium oxide, carbon black, bentonite, smectite, polymethyl sesquioxide Organic powders such as oxane, polystyrene, polyalkyl acrylate, vinylidene chloride-methacrylic acid copolymer, polyethylene, wool powder, silk powder, crystalline cellulose powder, N-acyl lysine powder, organic tar pigment, organic dye Dye powders such as these lake pigments, titanium oxide-containing silicic acid anhydride, and the like, and one or more of these can be used. These powders are one or two of fluorine compound, silicone compound, metal soap, lecithin, hydrogenated lecithin, collagen, hydrocarbon, higher fatty acid, higher alcohol, ester, wax, wax, surfactant and the like. Surface treatment may be performed using seeds or more.

  In the solid powder cosmetic of the present invention, by further blending an oily component as the component (C), suppression of powderiness, improvement of adhesion to the skin, emollient feeling, makeup sustainability are significantly improved. . 0.1-30% of the compounding quantity of the oil-based component of a component (C) is preferable, More preferably, it is 0.5-15%. When it mix | blends in this range, suppression of powderiness, the adhesion improvement to skin, provision of an emollient feeling, the uniformity of a cosmetic film, and makeup persistence will improve especially.

  As the component (C) oily component used in the present invention, oils usually used in cosmetics can be blended, and the origin of animal oil, vegetable oil, synthetic oil and the like, solid oil, semi-solid oil, liquid oil, volatile Oils such as hydrocarbons, fats and oils, waxes, hardened oils, fatty acids, higher alcohols, esters, silicone oils, fluorinated oils, lanolin derivatives, etc., regardless of the nature of the oil etc. . Also included are those having the functions of surfactants, ultraviolet absorbers, and oil gelling agents.

Among the oily components of component (C), when polar oil is blended, a skin-friendly cosmetic with good skin fit is obtained.
Examples thereof include polar oils such as synthetic ester oils and natural ester oils. Specific examples include jojoba oil, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, di- 2-ethylhexanoic acid ethylene glycol, 2-ethylhexanoic acid cetyl, di-2-ethylhexanoic acid neopentyl glycol, tri-2-ethylhexanoic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol, cetyl octanoate Oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, isoseti stearate Butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, dipenta Erythritol fatty acid ester, isopropyl myristate, isopropyl palmitate, 2-octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, glyceryl 2-ethylhesanoate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, diisostearyl malate, glyceryl triisooctanoate, glyceride triisostearate , Diglyceryl diisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, decaglyceryl decaisostearate, glyceryl triisopalmitate, glyceryl trimyristate, diglyceryl myristate, Amino acid based oils such as -L-glutamic acid di (phytostearyl 2-octyldodecyl)

  Commercially available polar oils of component (C) oily component of the present invention include LIALCARB SR-1000 / R (manufactured by Mitsui Chemicals Fine), Nikkor CIO, TRIFAT S-308 (above, Nippon Surfactant Kogyo Co., Ltd.), MYRITOL GTEH etc. (above, Cognis company make) etc. are mentioned.

Among the oily components of component (C), the dispersibility of the powders is improved by adding a surfactant, so that a cosmetic having a highly uniform makeup film can be obtained.
Examples include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and the like. Specifically, 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, sorbitol fatty acid ester and its alkylene glycol adduct, polyalkylene glycol fatty acid ester, polyoxyalkylene modified Nonionic surfactants such as silicone, polyoxyalkylene alkyl co-modified silicone, alkylbenzene sulfate, alkyl sulfonate, α-olefin sulfonate, di Alkylsulfosuccinate, α-sulfonated fatty acid salt, acylmethyl taurate, N-methyl-N-alkyl taurate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxy Anionic surfactants such as ethylene alkyl ether phosphates, polyoxyethylene alkyl phenyl ether phosphates, N-acyl amino acid salts, N-acyl-N-alkyl amino acid salts, alkylamine salts, polyamines and alkanoylamine fatty acid derivatives And cationic surfactants such as alkylammonium salts and alicyclic ammonium salts, and amphoteric surfactants such as lecithin and N, N-dimethyl-N-alkyl-N-carboxymethylammonium betaine.

  Commercially available surfactants of the component (C) oil component of the solid powder cosmetic of the present invention include NIKKOL SS-15V, Nikkor SS-10V (manufactured by Nippon Surfactant Co., Ltd.), Cosmol 182V (manufactured by Tohshin Chemical Co., Ltd.) ) And other lipophilic sorbitan surfactants.

Among the oily components of component (C), cosmetics with UV protection effects can be obtained by blending UV absorbers, and since many are polar oils, cosmetics with good skin adhesion and good adhesion are obtained. can get.
For example, as specific examples, benzophenone series includes 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid sodium, 2 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone-5-sulfonic acid sodium salt, 2,4-dihydroxybenzophenone, 2,2 ′, 4,4 '-Tetrahydroxybenzophenone, 2,4,6-trianilino-para- (carbo-2'-ethylhexyl-1'-oxy) -1,3,5-triazine, 2,4-bis [{4- (2- Ethylhexyloxy) -2-hydroxy} -phenyl] -6- (4-methoxyphenyl)-(1,3,5) Triazine, 2-2'-methylene-bis- {6- (2H-benzotriazol-2-yl) -4- (1,1,3,3, -tetramethylbutyl) phenol} and the like, and PABA type As p-aminobenzoic acid, ethyl p-aminobenzoate, glyceryl p-aminobenzoate, amyl p-dimethylaminobenzoate, 2-ethylhexyl p-dimethylaminobenzoate, ethyl p-dihydroxypropylbenzoate, 2- {4- (diethylamino) -2-hydroxybenzoyl} benzoic acid hexyl and the like. Examples of cinnamic acid include p-methoxycinnamic acid-2-ethylhexyl, 4-methoxycinnamic acid-2-ethoxy Ethyl and the like, and as salicylic acid, salicylic acid-2-ethylhexyl, phenyl salicylate, homomenthyl salicylate, etc. Examples of the dibenzoylmethane series include 4-tert-4′-methoxydibenzoylmethane and 2-2′-methylene-bis- {6- (2H-benzotriazol-2-yl) -4- (1, 1,3,3, -tetramethylbutyl) phenol} and the like,

  UVINUL MC80, UVINUL A PLUS B (manufactured by Nagase Sangyo Co., Ltd.) and the like are listed as commercial products of the ultraviolet absorber of component (C) oil component of the solid powder cosmetic of the present invention.

Among the oily components of the component (C), a cosmetic having a soft and soft feeling of use can be obtained by blending a partially crosslinked organopolysiloxane polymer.
For example, the organopolysiloxane polymer may be a partially crosslinked methylpolysiloxane such as dimethicone / vinyldimethicone) crosspolymer, or a partially crosslinked methylphenylpolysiloxane such as (dimethicone / phenyldimethicone) crosspolymer. Examples of the polymer containing a polyoxyalkylene group in the molecule include partially crosslinked polyether-modified silicones such as (dimethicone / (PEG-10 / 15)) crosspolymer. Examples of the polymer containing a long-chain alkyl group in the molecule include partially cross-linked alkyl-modified silicones such as (vinyl dimethicone / lauryl dimethicone) cross polymer. Examples of the polymer containing a polyoxyalkylene group and a long-chain alkyl group in the molecule include partially cross-linked alkyl / polyether co-modified silicones such as PEG-15 lauryl dimethicone cross polymer. Examples of the polymer containing a halogenated hydrocarbon group in the molecule include partially cross-linked fluorine-modified silicones such as (trifluoropropyl dimethicone / trifluoropropyl divinyl dimethicone) crosspolymer.

  As a commercial product of the partially crosslinked organopolysiloxane polymer of component (C) oily component of the solid powder cosmetic of the present invention, KSG-15 (solid content 5%) as a mixture of partially crosslinked methylpolysiloxane and cyclic silicone , KSG-16 (solid content 20-30%) as a mixture of partially crosslinked methylpolysiloxane and dimethylpolysiloxane, and KSG-18 (solid content 10-10) as a mixture of partially crosslinked methylphenylpolysiloxane and phenyltrimethicone. 20%), KSG-210 (solid content 20-30%) as a mixture of partially crosslinked polyether-modified silicone and dimethylpolysiloxane, KSG-41 (solid content 25 as a mixture of partially crosslinked alkyl-modified silicone and oil) ~ 35%), KSG-42 (solid content 20-30%), KSG-43 (solid content) 5 to 35%) and KSG-44 (solid content 25 to 35%), KSG-310 (solid content 25 to 35%), KSG-320 (solid content 25 to 35%) as a mixture of a partially crosslinked alkyl-polyether co-modified silicone and an oil agent. Solid content 20-30%), KSG-330 (solid content 15-25%), KSG-340 (solid content 25-35%) and KSG-340 (solid content 25-35%) (Shin-Etsu Chemical Co., Ltd.) And partially crosslinked organopolysiloxane polymers.

  In addition to the above polar oils, surfactants, ultraviolet absorbers, and cross-linked organopolysiloxane polymers, oil components that are usually used in cosmetics can be blended, and origins of animal oils, vegetable oils, synthetic oils, and solid oils Hydrocarbons, fats and oils, waxes, hardened oils, fatty acids, higher alcohols, silicone oils, fluorinated oils, lanolin derivatives, regardless of properties such as semi-solid oil, liquid oil, and volatile oil And oil agents such as oil gelling agents. Specific examples include waxes such as beeswax, lanolin, carnauba wax, candelilla wax, gay wax, liquid paraffin, heavy liquid isoparaffin, α-olefin oligomer, hydrocarbons such as squalane, polyisobutylene, polybutene, olive oil, Fats and oils such as castor oil, macadamian nut oil, fatty acids such as isostearic acid and oleic acid, higher alcohols such as oleyl alcohol and isostearyl alcohol, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octa Silicone oils such as methylcyclotetrasiloxane, alkoxy-modified organopolysiloxane, fluorine-modified silicone, fluorine oils such as perfluoropolyether, lanolin, lanolin acetate, lanolin fatty acid a Propyl, lanolin derivatives such as lanolin alcohols, sucrose fatty acid ester, dextrin fatty acid esters, aluminum isostearate, oily gelling agents such as 12-hydroxystearic acid and the like.

The solid powder cosmetic of the present invention is preferable because it further increases the softness and the feeling of use by adding an organically modified synthetic clay mineral as the component (D).
The organically modified synthetic clay mineral is, for example, a layered clay mineral synthesized by the following method. First, a silicic acid solution and a magnesium solution are mixed to obtain an Si—Mg intermediate. It is filtered and washed, hydrolithically synthesized after adding lithium hydroxide. Then, dry-milled to give a synthetic clay minerals _{Na 33 (Mg 2.67 Li 0.33)} (Si 4 O 10) (OH) 2. Next, the synthetic clay mineral is dispersed in water, and quaternary ammonium salt dimethyl distearyl ammonium (R ₂ N (CH ₃ ) ²⁺ (R: C14-18)) is added to perform ion exchange. Then, after filtration, washing, dehydration and drying, pulverization is performed to obtain a complex of sodium silicate / magnesium and dimethyl distearyl ammonium ion (dimethyl distearyl ammonium hectorite). Examples of commercially available products include Lucentite SPN, Lucentite SAN, and Lucentite SSN (manufactured by Corp Chemical Co.).

  In the solid powder cosmetic of the present invention, the amount of the component (D) is preferably 1 to 10%, more preferably 3 to 7%. Within this range, a satisfactory product can be obtained in that it has a light stretch spread and a soft feel.

  In addition to the components described above, the cosmetic base material of the present invention includes components usually used in cosmetics, such as moisturizing agents, cooling agents, antioxidants, cosmetic ingredients, aqueous ingredients, preservatives, and fragrances. Can be appropriately blended within a range not impairing the effects of the present invention.

  The present invention is a solid powder cosmetic obtained by mixing a cosmetic base material containing powder as a main component with a volatile solvent to form a slurry, molding this, and then removing the volatile solvent. Various components including the above-described essential components can be used as a cosmetic base material.

  Although it does not specifically limit as a shaping | molding method of this invention, The cosmetics base material mixed with the volatile solvent and made into the slurry form is filled in containers, such as a metal plate, and three-dimensionally shaped.

  Moreover, the solid powder cosmetic of the present invention can be applied to makeup cosmetics, skin care cosmetics, and the like, and can be molded into various shapes according to the purpose to obtain product forms. Shapes include dome shape, hemispherical shape, conical shape, pyramid shape, diamond cut shape, and various 3D shapes such as brand logos and uneven shapes on the surface, etc. , Foundation, blusher, white powder, eye shadow, eyeliner, eyebrow, body powder and the like. In addition, the solid powder cosmetic molded into a three-dimensional shape using the solid powder cosmetic of the present invention has irregularities of 1 mm or more from the height of the press surface standard (upper edge of the metal pan), and preferably By using a convex three-dimensional shape within the range of 3 to 8 mm, the effect of using the composition of the present invention appears remarkably.

  The volatile solvent used in the present invention is preferably a volatile compound having a boiling point of 250 ° C. or lower, specifically, low boiling point hydrocarbons such as ethanol, isopropyl alcohol, water, n-butanol, light liquid isoparaffin, low Examples thereof include volatile silicones such as dimethylpolysiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane having a polymerization degree, low-boiling perfluoropolyether, and the like, and these can be used alone or in combination. As these volatile solvents, it is preferable to select light liquid isoparaffin because the effect of preventing cracking is more excellent.

  In the present invention, the mixing amount of the volatile solvent is arbitrarily selected so that fluidity is imparted in order to fill the container or the inner dish with the mixture before molding, but 100 parts by mass of the cosmetic base material (below) The volatile solvent is preferably used in an amount of 40 to 150 parts. If it is this range, the removal of a volatile solvent is favorable.

  In the method for preparing a solid powder cosmetic of the present invention, the method for removing the volatile solvent is not particularly limited, and a generally known method can be used. For example, when filling a mixture of a cosmetic base material and a volatile solvent into a container or an inner dish, it is preferable to press weakly using a pad or the like in order to smooth the surface. A volatile solvent can also be absorbed using a quality press head or absorber. Moreover, it is also possible to remove a volatile solvent by drying, and the conditions for that are appropriately set according to the boiling point and specific heat of the volatile solvent, but in the case of light liquid isoparaffin, it is 10 at 50 to 70 ° C. About 20 hours.

  EXAMPLES Examples of the present invention will be described below, and the present invention will be described in more detail. However, the present invention is not limited to these examples.

(Examples 1 to 5 and Comparative Examples 1 to 3) Domed solid powder blusher (4 mm from the height of the press surface standard)
Blusher was prepared according to the composition shown in Table 1 and the following preparation method, and each item of “use feeling”, “usability” and “moldability” was evaluated according to the evaluation method and criteria shown below, and the results were combined. Table 1 shows.

Note 1: Snow reef P (average particle size 7 μm: manufactured by Oken)
Note 2: Aluminum flake 0.15 (average particle diameter 150 mm: manufactured by Kadoha Fish Scale)
Note 3: Matsumoto Microsphere M-101 (average particle size 10 μm: manufactured by Matsumoto Yushi Seiyaku Co., Ltd.)
Note 4: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Note 5: Lucentite SAN (manufactured by Corp Chemical)
Note 6: Yubinar MC80 (BASF Japan)

(Production method)
A: Components 1 to 12 are mixed.
B: Components 13 to 17 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 60 parts of a volatile solvent “IP solvent 1620MU (manufactured by Idemitsu Kosan Co., Ltd.)” is added to 100 parts of the cosmetic base material and mixed to form a slurry.
E: D was compression-molded into a metal pan so as to form a dome shape, dried at 70 ° C. overnight, and the volatile solvent was removed to obtain blusher.

(Evaluation item)
(B) Lightness of spread and soft feeling of use (b) Uniformity of makeup film (c) Adhesiveness (persistence of makeup effect)
(D) Formability

(Evaluation method 1)
About the item of (i)-(c), the use test by 20 expert panels was done about each sample. Each sample is applied to the cheek using an applicator, and each panel member evaluates to 6 grades according to the following absolute evaluation, gives a score, calculates the average value from the total score of all the panels, Judged.
Evaluation items (A) to (B) are evaluated at the time of application. Regarding evaluation item (C), a sample is applied to the cheek, and the panel is allowed to have a normal life. evaluated.

<Absolute evaluation criteria>
(Score): (Evaluation)
6 points: Very good 5 points: Good 4 points: Slightly good 3 points: Normal 2 points: Slightly bad 1 point: Bad

<4 step criteria>
(Judgment): (Average score)
◎: More than 5 points: Very good ○: More than 3 points, 5 points or less: Good △: More than 1 point, 3 points or less: Slightly poor ×: 1 point or less: Bad

(Evaluation method 2)
For item (d), prepare five samples for each sample, visually observe the evaluation of moldability, evaluate the following five absolute evaluations, give a rating, and add the rating from the total of n = 5 The average value was calculated and judged according to the following four-stage criteria.
Regarding the evaluation criteria, if it is difficult to remove the volatile solvent at the time of molding, the surface peels off immediately after molding and cannot be molded into a three-dimensional shape, or defects such as cracks and peelings occur on the surface of the cosmetic after drying. Even if there is no defect, irregularities and unevenness are observed on the surface of the cosmetic other than desired. Conversely, if the volatile solvent is easy to remove, obtain a cosmetic that can be molded into a three-dimensional shape, has no defects such as cracks or peeling on the surface of the cosmetic even after drying, and has no unintended surface irregularities or unevenness. Can do.
Therefore, instead of evaluating the ease of removal of the volatile solvent here, the “moldability” of the cosmetics can be determined by observing cracks, peeling, irregularities, and unevenness on the surface after drying into three-dimensional shapes and after drying. evaluated.

<Absolute evaluation criteria>
(Grade): (Judgment)
5 points: Can be molded into a three-dimensional shape and has no defects, unintended irregularities or unevenness on the surface.
4 points: Can be molded into a three-dimensional shape, and there are no defects on the surface, but there are slight unintentional irregularities and unevenness, but there is no problem in use. Three points: Can be molded into a three-dimensional shape, and there are no defects on the surface, but unintended irregularities There is unevenness.
2 points: Can be molded into a solid, but cracks and tears occur after drying 1 point: Cannot be molded into a solid at the time of molding

<4 step criteria>
(Judgment): (Average score)
◎: More than 4 points: Very good ○: More than 3 points 4 points or less: Good △: More than 2 points 3 points or less: Slightly poor x: 2 points or less: Bad

As is apparent from the results in Table 1, the dome-shaped solid powder blusher of Examples 1 to 5 according to the present invention is (a) light and easy to use, (b) uniformity of the cosmetic film, C) It was a solid powder cosmetic excellent in all items of adhesion (durability of makeup effect) and (d) moldability.
On the other hand, in the comparative example 1 which does not contain a component (A), since a crack and a crack generate | occur | produce on the surface of a solid | solid, the moldability was inferior, and also the adhesiveness to skin was bad and the soft usability | use_condition was also inferior.
Moreover, the comparative example 2 using the polyethylene terephthalate / polymethylmethacrylate laminated film powder having a plate shape and a large particle diameter instead of the component (A) could not be molded into a three-dimensional shape.
Furthermore, Comparative Example 3 not containing the plate-like powder of the component (B) has unevenness on the surface, poor adhesion to the applicator, inferior spread and soft feel, and unevenness in the decorative film. Adhesion was also poor.

(Example 6) Square columnar (trapezoidal) cake-like white powder (4 mm from the height of the press surface standard)
(Ingredient) (%)
1. Titanium oxide 5
2. Polyethylene terephthalate finely pulverized powder (Note 1) 40
3. 3. Sericite remaining amount Barium sulfate 5
5. Silicic anhydride 3
6). Nylon powder (Note 7) 3
7). Preservative (Methyl paraoxybenzoate) 0.2
8). Diglyceryl diisostearate (Note 8) 3
9. Sorbitan monoisostearate 0.4
10. Liquid paraffin 0.3
11. Fragrance 0.1
Note 7: Orgasol EXD (average particle size 10 μm: manufactured by Nippon Rilsan)
Note 8: Cosmall 42 (Nisshin Oillio Group)

(Production method)
A: Components 1 to 7 are mixed.
B: Components 8 to 11 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 60 parts of a volatile solvent “IP solvent 1620MU (manufactured by Idemitsu Kosan Co., Ltd.)” is added to 100 parts of the cosmetic base material and mixed to form a slurry.
E: D was compression-molded in a metal pan so as to form a dome shape, dried at 70 ° C. for a whole day and night, a volatile solvent was removed, and a cake was formed to obtain a white powder.

  The square columnar (trapezoidal) cake-like white powder of Example 6 has (a) lightness of spreading and soft feeling of use, (b) uniformity of makeup film, (c) adhesion (durability of makeup effect), (D) It was a solid powder cosmetic excellent in all items of moldability.

(Example 7) Diamond-cut solid powder eye shadow (4 mm from the height of the press surface standard)
(Ingredient) (%)
1. Mica titanium (Note 9) 30
2. Polyethylene terephthalate finely pulverized powder (Note 1) 30
3. 3. Sericite remaining amount Boron nitride 5
5. Titanium oxide coated glass powder (Note 10) 1
6). Red 226 0.5
7). Ultramarine 1
8). Yellow iron oxide 0.5
9. Black iron oxide 0.2
10. Nylon powder (Note 7) 3
11. Preservative (Methyl paraoxybenzoate) 0.2
12 Diglyceryl tetraisostearate (Note 11) 1.5
13. Dimethylpolysiloxane 10
14 Triisooctanoic acid glyceride 10
15. Fragrance 0.1
Note 9: FLAMENCO SUPPERPEARL 120C (Merck)
Note 10: Metashine (MC1080RB) (manufactured by Nippon Sheet Glass Co., Ltd.)
Note 11: Cosmall 44 (Nisshin Oillio Group)

(Production method)
A: Components 1 to 11 are mixed.
B: Components 12 to 15 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 60 parts of a volatile solvent “IP solvent 1620MU (manufactured by Idemitsu Kosan Co., Ltd.)” is added to 100 parts of the cosmetic base material and mixed to form a slurry.
E: D was compression-molded into a metal pan in a dome shape, dried at 70 ° C. overnight, and the volatile solvent was removed to obtain an eye shadow.

  The diamond-cut solid powder eye shadow of Example 7 has (a) light spread and soft feeling, (b) uniformity of the cosmetic film, (c) adhesion (durability of makeup effect), (d) ) It was a solid powder cosmetic excellent in all items of moldability.

(Example 8) Square columnar (trapezoidal) cake-like foundation (4 mm from the height of the press surface standard)
(Ingredient) (%)
1. Titanium oxide 10
2. 2. Sericite remaining amount Polyethylene terephthalate finely pulverized powder (Note 1) 10
4). Perfluorohexylethyltriethoxysilane 3% treated sericite 10
5. Barium sulfate 5
6). Silicic anhydride 3
7). Spherical polystyrene 3
8). Perfluorohexylethyltriethoxysilane 3% treated bengara 0.5
9. Perfluorohexylethyltriethoxysilane 3% treated yellow iron oxide 2
10. Perfluorohexylethyltriethoxysilane 3% treated black iron oxide 0.2
11. Preservative (Methyl paraoxybenzoate) 0.2
12 Diglyceryl diisostearate 3
13. α-Olefin oligomer (Note 12) 1
14 Vaseline 1
15. Liquid paraffin 3
Note 12: Nom Coat HPD-C (Nisshin Oillio Group)

(Production method)
A: Components 1 to 11 are mixed.
B: Components 12 to 15 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 60 parts of a volatile solvent “IP solvent 1620MU (manufactured by Idemitsu Kosan Co., Ltd.)” is added to 100 parts of the cosmetic base material and mixed to form a slurry.
E: D was compression-molded into a metal pan so as to form a dome shape, dried at 70 ° C. overnight, and the volatile solvent was removed to obtain a cake-like foundation.

  The quadrangular prism (trapezoidal) cake-like foundation of Example 8 has (a) lightness of spreading and soft feeling of use, (b) uniformity of makeup film, (c) adhesion (durability of makeup effect), (D) It was a solid powder cosmetic excellent in all items of moldability.

(Example 9) Domed solid powder body powder (2 mm from the height of the press surface standard)
(Ingredient) (%)
1. Talc 40
2. Polyethylene terephthalate fine powder (Note 1) 15
3. Mica remaining amount 4. Kaolin 1
5. Synthetic phlogopite 6
6). Preservative (Methyl paraoxybenzoate) 0.2
7). Vaseline 1
8.2 Glyceryl 2-ethyl hesanate 2
9. Liquid paraffin 2
10. Fragrance 0.5

(Production method)
A: Components 1 to 6 are mixed.
B: Components 7 to 10 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 100 parts of volatile solvent “80 parts of purified water and 20 parts of ethanol” are added to 100 parts of the cosmetic base material, and mixed to form a slurry.
E: D was compression-molded in a metal pan so as to form a dome shape, dried at 50 ° C. for a whole day and night, a volatile solvent was removed, and a cake was formed to obtain a body powder.

  The dome-shaped solid powder body powder of Example 9 has (a) light spreading and soft feeling, (b) uniformity of cosmetic film, (c) adhesion (durability of makeup effect), (d) ) It was a solid powder cosmetic excellent in all items of moldability.

(Example 10) Diamond-type solid powder eyebrow (3 mm from the height of the pressed surface)
(Ingredient) (%)
1. Talc 30
2. Polyethylene terephthalate finely pulverized powder (Note 1) 20
3. Mica remaining amount 4. Kaolin 1
5. Black iron oxide 6
6). Preservative (Methyl paraoxybenzoate) 0.2
7). Vaseline 1
8). Liquid paraffin 10
9. Fragrance 0.3

(Production method)
A: Components 1 to 6 are mixed.
B: Components 7 to 9 are mixed and heated to 70 ° C. to dissolve.
C: B was added to A and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: 120 parts of volatile solvent “120 parts of purified water” is added to 100 parts of the cosmetic base material,
E: D was compression-molded in a metal pan to become a diamond shape, dried at 50 ° C. overnight, and the volatile solvent was removed to obtain a diamond-type solid powder eyebrow.

The diamond-type solid powder eyebrow of Example 10 has (a) light spreading and soft feeling, (b) uniformity of cosmetic film, (c) adhesion (durability of makeup effect), (d) It was a solid powder cosmetic excellent in all items of moldability.

Claims (8)

In a cosmetic obtained by mixing a cosmetic base material containing powder as a main component with a volatile solvent to form a slurry, molding this, and then removing the volatile solvent,
The cosmetic base material comprises the following components (A) and (B):
(A) A solid powder cosmetic comprising a finely pulverized polyethylene terephthalate powder (B) having a mean particle diameter of 1 to 30 μm and a three-dimensional surface.   The solid powder cosmetic according to claim 1, wherein the blending mass ratio (A) / (B) of the component (A) and the component (B) is 1/20 to 2/1.   Furthermore, an oily component is mix | blended as a component (C), The solid powder cosmetics of Claim 1 or 2 characterized by the above-mentioned.   The solid powder cosmetic according to claim 3, wherein the oily component of the component (C) is a polar oil.   The solid powder cosmetic according to claim 3, wherein the oil component of the component (C) is a lipophilic sorbitan surfactant.   The solid powder cosmetic according to claim 3, wherein the oily component of the component (C) is an ultraviolet absorber.   The solid powder cosmetic according to claim 3, wherein the oily component of the component (C) is a partially crosslinked organopolysiloxane polymer.   The solid powder cosmetic according to any one of claims 1 to 7, further comprising an organically modified synthetic clay mineral as component (D).