HK1135606B - Powdery cosmetic - Google Patents

Description

Powder cosmetic

Technical Field

The present invention relates to a powdery cosmetic composition, and more particularly to a powdery cosmetic composition used in combination with a specific powder.

Methods of molding powder cosmetic products such as foundations, eye shadows, blushers, and the like are roughly classified into dry molding methods and wet molding methods. As the dry molding method, a press molding method of compressing a cosmetic base material by pressing to obtain a predetermined shape is a general method. The wet molding method is a molding method in which a cosmetic base is mixed with a solvent, a container is filled with the mixture, and then the solvent is removed. In recent years, wet molding methods are increasingly used in consideration of solid touch and freedom of multicolor printing. Various production methods have been proposed, as distinguished from the type of solvent and the method of removing the solvent (see, for example, Japanese patent laid-open No. 7-277924). In the powder cosmetic composition, the touch feeling used at the time of application, the beauty of the effect after makeup, and the like were carefully evaluated, while the adhesion property to the skin was not evaluated at all in practice.

In recent years, silicone elastomers such as TrefilE-506C (manufactured by Toray Dow Corning) have been used in order to improve foundation applicability and the like. Such silicone elastomers have in use a distinctive feel such as softness and smoothness resulting from rubbery elasticity and not seen in other powders. The effect on the improvement in the feeling of use of various types of powdery cosmetic compositions is high.

However, such silicone elastomers have high aggregation ability, and therefore, under the ordinary dry molding method, cracks and fractures are easily generated in the powder cosmetic composition due to poor dispersibility of the powder, and thus the amount of the elastomer is limited to about 1 mass%. To solve this problem, from the viewpoint of the production method, a method has been proposed which uses a medium-stirring mill or other high-speed dispersing device to break up lumps of the silicone elastomer in the solvent to approach the primary particles and wet-form the resulting mixture (see, for example, Japanese patent laid-open No. (A) No. 2003-81769). Further, from the material point of view, there are proposed a composite silicone elastomer (KSP series produced by Shin-Etsu Chemical co., ltd.) comprising an elastomer partially coated with a silicone resin on the surface thereof and a composite silicone elastomer obtained by mechanically pulverizing a block of a silicone elastomer into primary particles and mechanochemical coating an inorganic compound such as a clay mineral on the surface of the silicone elastomer, at the time of synthesizing the silicone elastomer (see, for example, japanese patent No. 3442698).

With respect to the composite silicone elastomer, not only the effect of suppressing the preparation and feel of powder aggregation but also other functions can be imparted to the elastomer itself. When a substance having an ultraviolet screening effect such as titanium dioxide is applied, not only a good touch but also an ultraviolet protection ability and, in the case of iron oxide, a color tone compensation effect can be imparted.

Especially by combining multiple coatings, a completely new value can be imparted to the elastomer itself. It is known that a composite silicone elastomer comprising a silicone resin-coated silicone elastomer powder on the surface of which particulate zinc oxide is coated by a mechanochemical method is not only excellent in touch at the time of application but also suppresses the activity of plasminogen which activates urokinase present on the skin surface and causes skin roughness, thereby alleviating skin roughness (see, for example, japanese patent laid-open No. (a) No. 2004-217621).

Disclosure of Invention

However, the powder cosmetic composition containing the powder has low adhesion property to the skin and easily causes removal of makeup after makeup is completed. The smoothness was good but not sufficient. Further, when a makeup product is produced by compression molding, if a large amount of smooth powder having good smoothness is formulated, the cohesion becomes too large, the suction of a coating tool such as a sponge is reduced, that is, a so-called blocking phenomenon is generated, and conversely the compression becomes insufficient and problems of physical properties such as insufficient composition and reduced drop strength are generated.

The object of the present invention is to solve the above conventional problems and to provide a powder cosmetic composition having satisfactory applicability, cosmetic durability and adhesion property to skin.

The present inventors have intensively studied to solve the above-mentioned problems, and as a result, have found that a powder cosmetic composition having good applicability, preventing makeup removal and excellent adhesion to the skin can be obtained by using a composite silicone elastomer powder coated with at least one coating material selected from clay minerals, resins, metal oxides and salts on all or part of the surface of a silicone elastomer powder in combination with a branched alkyl polysiloxane-treated powder, thereby completing the present invention.

The present invention is a powdery cosmetic composition comprising, as powder components, (a) and (b):

(a) a branched alkyl polysiloxane-treated powder, and

(b) composite silicone elastomer powder coated on all or part of the surface of the silicone elastomer powder with at least one coating material selected from clay minerals, resins, metal oxides and salts.

In the present invention, it is preferable that the amount of the component (a) is 3 to 80% by mass and the amount of the component (b) is 1 to 30% by mass.

In the present invention, it is preferable that the component (b) is a composite silicone elastomer powder having 1 to 300 parts by mass of a coating material based on 100 parts by mass of the silicone elastomer powder.

In the present invention, the powder cosmetic composition is a foundation or an eye shadow.

According to the present invention, a powder cosmetic composition having satisfactory applicability, cosmetic durability, adhesion property to the skin, excellent smoothness and smoothness can be obtained.

Drawings

Fig. 1 is an SEM photograph of the powder surface of the composite silicone elastomer prepared in preparation example 1.

FIG. 2 is an SEM photograph of the powder surface of a commercially available composite silicone elastomer.

Best mode for carrying out the invention

The best mode for carrying out the invention is described below.

Branched alkyl polysiloxane treated powder

The branched alkyl polysiloxane-treated powder usable in the present invention can be obtained by adding a branched alkyl polysiloxane treating agent such as KF-9909 prepared by Shin-Etsu Chemical co., ltd. represented by the following general formula (I) and a mixed solvent of a volatile organic solvent such as isopropyl alcohol to the powder, uniformly stirring the mixture by a mixer such as a henschel mixer and removing the solvent in a heating step.

Wherein a is 5-15, b is 1-5, c is 1-3, d is 1-5, and n is 3-15.

As powders which can be used herein, mention may be made of base pigments and coloring pigments. For example, there may be mentioned talc, mica, sericite, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silica, alumina, barium sulfate, boron nitride, acrylic polymers, nylon, polystyrene, polyethylene, polypropylene, polyurethane, cellulose, polysiloxane or copolymers thereof and other spherical resin powders, inorganic coloring materials and the like. Among them, it is particularly preferable to use one or more pigments selected from mica, sericite, talc, kaolin, synthetic mica, iron oxide and titanium dioxide.

In addition, commercially available branched alkyl polysiloxane-treated powders may also be used. Such branched alkyl polysiloxane-treated powders include, for example, NS Talc JA-46R-3S, NS Sericite FSE-3S, NS Eightphearl 300S-2S, NS Eightpeaarl 1000S-2S, NS Mica Y-3000-3S (prepared by Kakuhachi Co., Ltd. above), BAE-Talc JA-68R, BAE-Sericite FSE, BAE-Mica M-102, BAE-Titanium CR-50, BALLE-Yellow-o, BAE-BeXloa Shippo, BAE-Black BL-100 (prepared by Mishii Industry above), and the like.

A particularly preferred branched alkyl polysiloxane treated powder is powder KF-9909 prepared by Shin-Etsu chemical co., ltd. and treated by rendering it hydrophobic, wherein the modified polysiloxane comprising a polysiloxane main chain has polysiloxane side chains and alkyl side chains and has ethoxy groups as reaction points with the powder. The branched alkyl polysiloxane-treated powder is very strong in hydrophobicity and water resistance and excellent in adhesion property to the skin.

In the present invention, it is preferable that the content of the branched alkyl polysiloxane-treated powder is 3 to 80% by mass in the total powder cosmetic composition from the viewpoint of imparting a smooth moist feeling in use and improving the adhesion property to the skin.

Composite silicone elastomer powder

As the composite silicone elastomer powder that can be used in the present invention, there are mica-coated silicone elastomer powder, sericite-coated silicone elastomer powder, talc-coated silicone elastomer powder, kaolin-coated silicone elastomer powder, boron nitride-coated silicone elastomer powder, silicone resin-coated phenyl rubber (phenyl rubber) powder, silica-coated silicone elastomer powder, titanium dioxide-coated silicone elastomer powder, zinc oxide-coated silicone elastomer powder, cerium oxide-coated silicone elastomer powder, iron oxide-coated silicone elastomer powder, silica/silicone resin-coated silicone elastomer powder, titanium dioxide/silicone resin-coated silicone elastomer powder, silicone rubber-coated silicone, Zinc oxide/silicone coated silicone elastomer powder, cerium oxide/silicone coated silicone elastomer powder, titanium dioxide/silicone coated phenyl rubber powder, zinc oxide/silicone coated phenyl rubber powder, cerium oxide/silicone coated phenyl rubber powder, iron oxide/silicone coated silicone elastomer powder, and the like.

Among these, composite silicone elastomer powders comprising the Trefil E series (Trefil E-505C, Trefil E-506S, Trefil E-507, and Trefil E-508) prepared by Toray Dow Corning coated on the surface with talc, sericite, kaolin, mica, titanium mica, or another clay mineral are particularly preferred.

Further, as commercially available products of the composite silicone elastomer powder, for example, silicone resin-coated silicone elastomers KSP-100, KSP-101, KSP-102 and KSP-105 (manufactured by Shin-Etsu Chemical Co., Ltd.) and silicone resin-coated phenyl rubber powder KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.) can be mentioned.

The coating amount of the composite silicone elastomer powder used in the present invention is preferably 1 to 300 parts by mass, more preferably 3 to 250 parts by mass, based on 100 parts by mass of the core silicone elastomer powder. If the amount of the coating is less than 1 part by mass, the silicone elastomer powder itself cannot be inhibited from aggregating and the powder dispersibility is significantly reduced, and thus the amount formulated into a cosmetic composition is limited and the targeted use feeling or cosmetic durability cannot be achieved. If the coating amount is more than 300 parts by mass, a coating layer-use touch is produced that is too strong and thus the soft use touch distinctive of silicone elastomers tends to disappear. Further, the coating may be a single layer or multiple layers. For example, preparation examples 4 to 6 explained below correspond to a multilayer.

The content of the composite silicone elastomer powder usable in the present invention in the total cosmetic composition is preferably 1 to 30% by mass, more preferably 3 to 20% by mass. If the content of the composite silicone elastomer powder is less than 1 mass%, ease of application and smoothness are reduced, and a blocking phenomenon may be caused. If the content exceeds 30 mass%, cracks and breakage are liable to occur and problems arise in production.

Others

The powder of the essential ingredient (other than the colorant) other than the above-mentioned ones usable in the present invention is not particularly limited as long as it can be formulated into a cosmetic composition. Examples of powders (there is some overlap with the above) that may be mentioned include talc, mica, sericite, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silica, alumina, barium sulfate, boron nitride, acrylic polymers, nylon, polystyrene, polyethylene, polypropylene, polyurethane, cellulose, polysiloxane or copolymers thereof, and other spherical resin powders, and the like. The powder in the present invention may be of one or two or more freely selected and formulated types.

In the present invention, when these powders are hydrophilic, they may be used after being treated to make them hydrophobic. The treatment method for rendering it hydrophobic is not particularly limited. For example, a treatment method using a polysiloxane, by fluorine, a coupling agent, a metal soap, a fatty acid, a surfactant, or an acid, alkali, and inorganic salt, a composite treatment thereof, or the like can be used.

In the present invention, a colorant may be formulated. As specific examples of the coloring agent, there can be mentioned titanium dioxide, zinc oxide and other inorganic white pigments, yellow iron oxide, iron red, black iron oxide and other inorganic coloring pigments, titanium mica, iron titanium oxide mica, titanium dioxide-coated synthetic mica and other pearling agents, tar coloring agents (tar color) and other organic coloring agents, etc.

In the present invention, an oil agent (oil agent) is preferably formulated. The oil agent is not particularly limited if it is used as an oil agent for past cosmetic compositions. Esters, hydrocarbons, higher fatty acids, higher alcohols, silicone oils, and the like can be mentioned. Examples of oils include esters such as olive oil, castor oil, jojoba oil, macadamia nut oil or other lipids, isopropyl myristate, isopropyl palmitate, cetyl 2-ethylhexanoate, octyldodecyl myristate and other fatty acid monoesters, glycerol tricaprylate, glycerol triisostearate, and other glycerides, diglycerol diisostearate, diglycerol triisostearate, and other polyglyceryl esters, pentaerythritol di (2-ethylhexanoate), pentaerythritol dicaprylate, or other pentaerythritol esters, trimethylolpropane tricaprylate, trimethylolpropane triisostearate, and other trimethylolpropane esters, isostearyl malate, and other malate esters, and the like. Further, as the hydrocarbon, for example, liquid paraffin, squalene, polybutene, liquid lanolin, volatile hydrocarbon and the like can be mentioned. Further, as the higher fatty acid, for example, isostearic acid, oleic acid and the like can be mentioned. Further, as the higher alcohol, for example, isostearyl alcohol, oleyl alcohol, octyldodecanol, etc. may be mentioned. Further, as the silicone oil, for example, polydimethylsiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, cyclic polysiloxane (octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), amino-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, and the like can be mentioned.

Among the above optional ingredients, the solid oil is not particularly limited as long as the oil can be formulated into a cosmetic composition. As examples of the solid oil, mention may be made of, for example, paraffin wax, ceresin, microcrystalline wax, polyethylene wax, hardened oil, beeswax, Japan wax, spermaceti wax, candelilla wax and other hydrocarbons, waxes, and stearic acid, lauric acid, myristic acid, behenic acid and other higher fatty acids, cetyl alcohol, stearyl alcohol, lauryl alcohol and other higher alcohols, and the like.

Other ingredients commonly used in cosmetic compositions, quasi drugs, drugs and the like may be suitably formulated in the powder cosmetic composition of the present invention in addition to the above-mentioned ingredients within the range not impairing the effect of the present invention. As other ingredients, for example, surfactants, moisturizers, polymers, dyes, lower alcohols, polyols, antioxidants, UV absorbers, cosmetic ingredients, antibacterial agents, preservatives, pH adjusters, perfumes, and the like can be mentioned.

The method for producing the powdery cosmetic composition of the present invention is not particularly limited and may be produced by a dry press molding method, a wet molding method or the like. In the present invention, since the powder dispersibility is excellent, it is preferably produced by a general dry press molding method from the viewpoint of cost and production.

In the case of the wet molding method, as the solvent that can be used, there can be mentioned ethanol, isopropanol, water, hexane, volatile polysiloxane, light isoparaffin, and the like. Ethanol is particularly preferred. The amount of the solvent is not particularly limited because they are determined by the cosmetic base formulation and the filling property in the vessel, but usually 10 to 100 parts by mass based on 100 parts by mass of the cosmetic base is suitable. In the case of ethanol, 20 to 70 parts by mass is particularly preferable.

As the powder cosmetic composition of the present invention, there can be mentioned foundation, cosmetic base, whitening powder, blusher, and the like, but the cosmetic compositions in which the effects of the present invention are remarkably exhibited are foundation and eye shadow.

Examples

The present invention will now be described in further detail by way of examples. It should be noted that the present invention is not limited by these examples. The amounts of the ingredients in the examples of the cosmetic composition are shown by mass% based on the total amount of the cosmetic composition.

In production examples 1 to 5, composite silicone elastomer powders for component (b) of the present invention were produced under various conditions.

Preparation example 1 (preparation of composite Silicone elastomer powder)

As the silicone elastomer powder, 40 parts of Trefil E-506S prepared by Toray Dow Corning was used, while as the clay mineral, 60 parts of talc (JA-68R prepared by Asada Milling Co., Ltd., average particle size of 9.0 to 12.0 μm) was used.

These materials were fed into a high speed rotating disperser. Cooling water was flowed through the jacket part of the disperser, and the disperser was rotated at a low speed of 20m/s for 3 minutes at a peripheral speed to mix the treated material. Next, the material was treated at a peripheral speed of 40m/s and a high-speed rotation with a Froude number of 70 or more for 60 minutes. The temperature of the treated powder increases rapidly and after 2-3 minutes is constant at 40-60 ℃. After 60 minutes, the high speed rotation was stopped, the disperser was rotated at a peripheral speed of 20m/s or less, and then the composite compound was cooled to room temperature and recovered to obtain a talc-coated silicone elastomer.

Preparation examples 2 and 3 (preparation of composite Silicone elastomer powder)

The method described in preparative example 1 was used to obtain a mica/resin-coated silicone elastomer (preparative example 2) and a boron nitride-coated silicone elastomer (preparative example 3).

Preparation example 4 (preparation of composite Silicone elastomer powder)

17 parts of particulate zinc oxide (zinc white (Seido)) were added to 83 parts of a silicone resin-coated silicone elastomer (KSP-100, manufactured by Shin-Etsu Chemical co. A henschel mixer was used for pre-stirring, and then 3mm Φ aluminum balls were used to form the composite in a ball mill. A sieving step was used to remove the coarse particle fraction to obtain a zinc oxide/silicone resin coated polysiloxane elastomer.

Preparation examples 5 and 6 (preparation of composite Silicone elastomer powder)

The method described in preparation example 4 was used to obtain a titanium dioxide/silicone resin coated silicone elastomer (preparation example 5) and an iron oxide/silicone resin coated silicone elastomer (preparation example 6).

SEM photographs of the powder surfaces of the composite silicone elastomer powder obtained in preparation example 1 and a commercially available silicone resin-coated phenyl rubber powder (KSP-300, prepared by Shin-Etsu Chemical co., ltd.) are shown in fig. 1 and 2. From FIG. 1, the powder of preparation example 1 was a composite silicone elastomer uniformly coated with talc over the entire surface of the silicone elastomer. Furthermore, from fig. 2, the commercially available composite silicone elastomer structure is partially covered by silicone. Both of these are used as component (b) of the present invention.

In this manner, the various types of composite silicone elastomer powders used in the present invention are coated with a coating material on all or part of the surface of the silicone elastomer.

The application of various types of cosmetic compositions containing the composite silicone elastomer powder of the preparation example described above was tested by a panel of 20 experts, and the uptake of the cosmetic composition by an application device, the ease of application of the cosmetic composition at the time of application, the adhesion properties to the point of application, the smoothness of the skin after application and other use feeling and applicability were evaluated based on the following evaluation criteria. The average of the scores given by the panel was then used to evaluate performance.

Evaluation criteria

And 5, dividing: is very excellent

And 4, dividing: is excellent in

And 3, dividing: in general

And 2, dividing: difference (D)

1 minute: very poor

Example 1 and comparative examples 1 to 3

Powder foundations were prepared by dry method according to the formulation of table I and evaluated according to the above criteria for smoothness, moisturization, skin adhesion, absence of dusting powder and absence of makeup removal. The results are shown together in table I.

TABLE I

^＊1: BAE-Talc JA68R (manufactured by Miyoshi Kasei Industry)

^＊2: BAE-Sericite FSE (manufactured by Miyoshi Kasei Industry)

^＊3: BAE-mica M-102 (manufactured by Miyoshi Kasei Industry)

^＊4: titanium Oxide MT020 (manufactured by Tayca Corporation)

The preparation methods of examples and comparative examples are based on the preparation method of a general powdered solid cosmetic composition. That is, the powder portion comprising the branched alkyl polysiloxane coated powder and the complex polysiloxane elastomer was stirred using a henschel mixer. Subsequently, the oil component is added and the resulting mixture is further stirred and then pulverized if necessary. In addition, the pearlizing agent and other components, which may impair the tactile quality due to pulverization, may be added and stirred after the pulverization.

As is clear from the results of table I, the foundation makeup of example 1 containing the branched alkyl polysiloxane-coated powder and the composite polysiloxane elastomer powder was excellent in makeup durability, no floating powder, and skin adhesiveness after completion, i.e., good adhesiveness. Further, it also has a smooth and moist touch in use touch.

In contrast, the foundation of comparative example 1, which did not contain the branched alkyl polysiloxane-coated powder or the composite polysiloxane elastomer powder, was powdery, had poor skin adhesion and did not have good cosmetic durability after makeup was completed. In addition, the foundations of comparative examples 2 to 3 containing the branched alkyl polysiloxane-coated powder or the composite polysiloxane elastomer powder have no floating powder and have good adhesion, and when only the branched alkyl polysiloxane-coated powder is contained after makeup is completed, have a touch of skin adhesion, but lack smoothness and have poor makeup durability. Further, when only the composite silicone elastomer powder is contained, it is powdery, lacks the feeling of skin adhesiveness and lacks adhesiveness after makeup is completed.

Example 2 and comparative examples 4 and 5

Powder foundations the formulations of table II were prepared by wet methods and evaluated by the criteria described above for smoothness, moisturization, skin adhesion, no dusting, and no make-up removal. The results are shown in table II.

TABLE II

^＊5: SA-Talc JA68R (manufactured by Miyoshi Kasei Industry)

^＊6: SA-Sericite FSE (manufactured by Miyoshi Kasei Industry)

^＊7: SA-micaM-102 (manufactured by Miyoshi Kasei Industry)

^＊8: ASE-Talc JA68R (manufactured by Miyoshi Kasei Industry)

^＊9: ASE-Sericite FSE (manufactured by Miyoshi Kasei Industry)

^＊10: ASE-micaM-102 (manufactured by Miyoshi Kasei Industry)

The preparation methods of examples and comparative examples are based on the preparation method of a general powdered solid cosmetic composition. That is, the powder portion comprising the branched alkyl polysiloxane coated powder and the complex polysiloxane elastomer was stirred using a henschel mixer. Subsequently, the oil component is added and the resulting mixture is further stirred and then pulverized if necessary. Further, a step of adding and stirring the pearl agent and other components which may deteriorate the tactile quality due to pulverization after pulverization or the like is possible.

As is clear from the results of table II, the foundation makeup of example 2 containing the branched alkyl polysiloxane-coated powder and the composite polysiloxane elastomer powder was excellent in makeup durability, no floating powder, and skin adhesiveness after completion, i.e., good adhesiveness. Further, it also has a smooth and moist touch in use touch.

In contrast, the foundations of comparative examples 4 to 5 containing the polydimethylsiloxane-coated powder or the acrylic polysiloxane-coated powder and the composite polysiloxane elastomer powder lack smoothness, wettability and skin adhesiveness as compared with example 2. In particular, a large difference in skin adhesion was found compared to example 2.

Examples 3 to 5 and comparative example 6

Powder foundations were prepared by dry methods according to the formulation of table III and evaluated according to the criteria described above for smoothness, moisturization, skin adhesion, absence of dusting powder and absence of makeup removal. The results are shown together in table III.

TABLE III

^＊11: KSP-100 (prepared by Shin-Etsu Chemical Co., Ltd.,. Ltd.))

^＊12: KSP-300 (manufactured by Shin-Etsu Chemical Co., Ltd.)

^＊13: trefil E-506S (prepared by Toray Dow Corning Silicone)

^＊14: drop strength: the sample was dropped from a height of 30cm onto an iron pan. The number of times until half of the amount is lost is calculated (N ═ 3).

The preparation methods of examples and comparative examples are based on the preparation method of a general powdered solid cosmetic composition. As an example, a henschel mixer was used to stir the powder portion comprising the branched alkyl polysiloxane coated powder and the compounded polysiloxane elastomer. Subsequently, the oil component is added and the resulting mixture is further stirred and then pulverized if necessary. Further, a step of adding and stirring the pearl agent and other components which may deteriorate the tactile quality due to pulverization after pulverization or the like is possible.

As is clear from the results of table III, the foundation containing the branched alkyl polysiloxane-coated powder and the silicone-coated elastomer powder or the silicone-coated phenyl rubber powder, such as the foundations in examples 3 and 4, was excellent in makeup durability, no floating powder, and skin adhesiveness, i.e., good adhesiveness, after completion of the makeup. Furthermore, they also have a smooth and moist feel in terms of use feel.

Further, the foundation of example 5 containing 30 mass% of the powder was slightly inferior in smoothness, wettability, and the like, as compared with the foundation containing 10 mass% of the silicone resin-coated silicone elastomer powder, but the results were sufficiently good.

In contrast, foundations containing a branched alkyl polysiloxane coated powder and a conventional polysiloxane elastomer, such as the foundation in comparative example 6, exhibit a powder-lift and lack smoothness and wettability. Further, sufficient drop strength cannot be exhibited.

Example 6 and comparative example 7

The eye shadow was prepared by dry method by the formulation of table IV below and evaluated by the criteria described above for smoothness, moisturization, skin adhesion, no dusting, no make-up removal and drop strength. The results are shown together in table IV.

TABLE IV

	Example 6	Comparative example 7
			Branched alkyl polysiloxane-treated talc (C)＊1) Branched alkyl polysiloxane treated mica (＊3) Synthetic phlogopite branched alkyl polysiloxane treated sericite (A)＊2) Talc mica titanium dioxide zinc myristate talc coated silicone elastomer (preparation example 1) silicone elastomer yellow iron oxide black iron oxide titanium mica colorant diisostearyl malate liquid petrolatum methyl phenyl polysiloxane sorbitan sesquistearate antioxidant p-oxybenzoate	The balance of 10230 to 1210 and 30.5121	- -2- -balance 103012-10255 an appropriate amount of 30.5121 an appropriate amount
Smoothness moisturization skin adhesion without dusting and without cosmetic falling strength (＊14)	4.804.754.704.654.8012.6	1.201.301.151.251.152.3

The methods of preparing the eye shadow of the above examples and comparative examples are based on the general method of preparing a powdery solid cosmetic composition. As an example, powder components comprising a branched alkyl polysiloxane coated powder and a compounded polysiloxane elastomer were agitated using a henschel mixer. Subsequently, the oil component is added and the resulting mixture is further stirred and then pulverized if necessary. Further, a step of adding and stirring the pearl agent and other components which may deteriorate the tactile quality due to pulverization after pulverization or the like is possible.

It is clear from the results of table IV that the eyeshadow containing the branched alkyl polysiloxane coated powder and the composite polysiloxane elastomer (example 6) is superior to comparative example 7 in smoothness, wettability, skin adhesion and absence of a powder top. There are also good results in terms of drop strength.

Other formulations implemented are shown below.

Example 7 (Wet-formed powder foundation)

Branched alkyl polysiloxane-treated sericite 10 mass%

Branched alkyl polysiloxane treated talc 5

Branched alkyl polysiloxane treated mica balance

Alkyl modified silicone treated yellow iron oxide 2

Alkyl modified silicone coated iron oxide Red 1

Alkyl modified silicone coated black iron oxide in proper amount

Alkyl modified silicone coated titanium dioxide 10

Calcium hydrogen phosphate 3

Low temperature calcined Zinc oxide 5

Barium sulfate 2

Mica-coated polysiloxane elastomer (preparation example 2) 8

2-ethylhexyl p-methoxycinnamate 3

Anhydrous silicic acid 1

Titanium dioxide 2

Alpha-olefin oligomer 3

Polydimethylsiloxane 8

Polymethylhydrosiloxane 0.5

Sorbitan sesquistearate 1

Proper amount of antioxidant

Proper amount of preservative

Example 8 (Loose white powder)

Branched alkyl polysiloxane coated talc balance

Branched alkyl polysiloxane coated mica 20% by mass

Zinc myristate 3

Aluminum stearate 0.1

Anhydrous silicic acid 5

Boron nitride coated Silicone elastomer (preparation example 3) 30

Anhydrous silicic acid 6

Iron oxide red coated titanium mica 2

Yellow iron oxide 0.1

Proper amount of colorant

Proper amount of antioxidant

Proper amount of preservative

Proper amount of perfume

Example 9(W/O emulsion type foundation)

Polydimethylsiloxane 15% by mass

Decamethylcyclopentasiloxane 20

Polyoxyethylene methylpolysiloxane copolymer 5

High molecular weight amino-modified polysiloxanes 0.1

Glycerol (Glyceryl) 5

1, 3-butanediol 10

Palmitic acid 0.5

Macadamia nut oil fatty acid cholesterol 0.1

Distearyldimethylammonium chloride 0.2

Branched alkyl polysiloxane coated yellow iron oxide(s) (ii)^＊15) 2

Branched alkyl polysiloxane coated iron oxide red (^＊16) 1

Branched alkyl polysiloxane coated black iron oxide(s) (ii)^＊17) 0.3

Branched alkyl polysiloxane coated dioxinsTitanium (b) is^＊18) 7

Branched alkyl polysiloxane coated talc 5

Polysiloxane coated fusiform titanium dioxide 3

Silicone resin coated polysiloxane elastomer(s) (ii)^＊11) 5

L-glutamic acid sodium 0.5

Proper amount of DL-alpha-tocopheryl acetate

Right amount of p-oxybenzoic acid ester

Proper amount of bis (trimethoxy) methyl cinnamate

(trimethylsiloxy) isopentylsilane

((trimethylsiloxy)silylisopentyl) 0.1

Dimethyl distearyl ammonium hectorite 1.5

Talc-coated Silicone elastomer (preparation example 1) 5

Purified water balance

Proper amount of perfume

^＊15: BAE-Yellow-LLXLO (manufactured by Miyoshi Kasei Industry)

^＊16: BAE-Bengara Shippo (manufactured by Miyoshi Kasei Industry)

^＊17：BAE-Black BL-100 (prepared by Miyoshi Kasei Industry)

^＊18: BAE-Titanium CR-50 (manufactured by Miyoshi Kasei Industry)

Example 10 (W/O2-layer Dispersion type emulsion foundation)

Decamethylcyclopentasiloxane 10% by mass

Dodecamethylcyclohexasiloxane 20

Trimethylsiloxysilicates 1

Poly (oxyethylene/oxypropylene) methylpolysiloxane copolymer 3

Ethanol 10

Isostearic acid 0.5

Branched alkyl polysiloxane coated titanium dioxide (^＊12) 10

Branched alkyl polysiloxane coated talc (C)^＊1) 5

Acicular particulate titanium dioxide 1

Spherical anhydrous silicic acid 5

Titanium dioxide-Silicone coated Silicone elastomer powder (preparation example 5) 5

Branched alkyl polysiloxane coated mica amounts

Proper amount of sodium citrate

N-lauroyl-L-lysine 0.5

DL-alpha-tocopheryl acetate 0.1

D-delta-tocopherol 0.1

Sophora flavescens (Sophora angustifolia) extract 1

Branched alkyl polysiloxane coated iron oxide red (^＊10) Proper amount of

Branched alkyl polysiloxane coated yellow iron oxide(s) (ii)^＊9) Proper amount of

Branched alkyl polysiloxane coated black iron oxide(s) (ii)^＊11) Proper amount of

Melilotus officinalis (Melilotus officinalis) extract 2

Purified water balance

Example 11 (oily 2-layer Dispersion type foundation)

15% by mass of decamethylcyclohexasiloxane

Decamethylcyclopentasiloxane balance

Pulleran 3-tris (trimethylsiloxy) silylpropylcarbamate 3

Ethanol 10

Isostearic acid 0.5

Myristic acid treated Zinc oxide 0.5

Branched alkyl polysiloxane coated titanium dioxide (^＊18) 10

Branched alkyl polysiloxane coated talc (C)^＊1) 7

Fine-particled titanium dioxide 5 coated with aluminium stearate

Iron oxide/Silicone coated polysiloxane elastomer (preparation example 6) 5

Spherical anhydrous silicic acid 2

L-ascorbyl-2-magnesium phosphate 0.2

DL-alpha-tocopheryl acetate 0.1

D-delta-tocopherol 0.1

2-ethylhexyl p-methoxycinnamate 5

Branched alkyl polysiloxane coated iron oxide red (^＊16) Proper amount of

Branched alkyl polysiloxane coated yellow iron oxide(s) (ii)^＊15) Proper amount of

Branched alkyl polysiloxane coated black iron oxide(s) (ii)^＊17) Proper amount of

Proper amount of perfume

The cosmetic compositions of examples 7 to 11 were all excellent in adhesion to the skin and had smooth and moist feeling of use. In addition, they have an effect of high cosmetic durability.

Claims (6)

1. A powdery cosmetic composition comprising, as powder components, (a) and (b):

(a) a branched alkyl polysiloxane-treated powder, and

(b) composite silicone elastomer powder coated on all or part of the surface of the silicone elastomer powder with at least one clay mineral, wherein the powder to be coated is selected from the group consisting of Trefil E-505C, Trefil E-506S, Trefil E-507 and Trefil E-508.

2. The powdery cosmetic composition as claimed in claim 1, wherein the amount of the component (a) is 3 to 80% by mass and the amount of the component (b) is 1 to 30% by mass.

3. The powdery cosmetic composition as claimed in claim 1, wherein the component (a) is a branched alkyl polysiloxane-treated base pigment and/or a branched alkyl polysiloxane-treated coloring material.

4. The powder cosmetic composition as claimed in claim 1, wherein the coating material of the component (b) is at least one component selected from the group consisting of sericite, talc, kaolin, mica and titanium mica.

5. The powder cosmetic composition as claimed in claim 1, wherein the component (b) is a composite silicone elastomer powder having 1 to 300 parts by mass of a coating material based on 100 parts by mass of the silicone elastomer powder.

6. The powder cosmetic composition as claimed in any one of claims 1 to 5, which is a foundation or an eye shadow.