JPH0840829A - Powder cosmetic - Google Patents

Abstract

PURPOSE:To obtain a powder cosmetic which shows good slippage and spreadability on skin without uneven application and has the effect to suppress dull and lackluster appearance. CONSTITUTION:This powder cosmetic comprises (A) a leaflet silicon dioxide powder containing 1-60wt.% of fine particles of titanium oxide of preferably 10-1,000nm, particularly 10-300nm average particle size, in an amount of 0.1-95wt.%, particularly 1-60wt.%, (B) a spherical powder preferably of 1-50mum, particularly 2-30mum average particle size, in an amount of 0.1-70wt.%, particularly 0.3-50wt.% where A/B is 0.1/1-50/1, particularly 0.5/1-30/1. The component A may be either of a composite in which fine particles of titanium oxide is dispersed in the leaflet silicon dioxide or a homogeneous mixture thereof where it is particularly preferred that the leaflet silicon dioxide is 1-20mum in diameter and 0.08-1mum in thickness. The component B may be a composite spherical particle of which a part or the whole surface is coated with microparticles of metal oxide such as titanium oxide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an effect of preventing dullness and maintaining a finished color for a long time immediately after applying cosmetics in powder cosmetics such as make-up cosmetics, and further, has good smoothness and spreadability. The present invention relates to a powder cosmetic excellent in usability such as lightness. More specifically, by blending a plate-like silicon dioxide powder containing fine particles of titanium oxide and a spherical powder, the effect of preventing dullness is enhanced, and the effect of maintaining the finished color immediately after cosmetic application for a long time, and The present invention relates to a powder cosmetic having good spreadability and good adhesion to the skin.

[0002]

2. Description of the Related Art In conventional makeup cosmetics, the finish color immediately after makeup application tends to become darker with time because the powder component contained therein gets wet with sebum. This is generally called dullness, which is an undesirable phenomenon in makeup cosmetics. In addition, for the purpose of powder cosmetics, a plate-like powder (extensive pigment) is used for the purpose of diluting a colorant to obtain a proper coating color and improving spreadability at the time of application, and imparting adhesion to the skin. It is known to be compounded.

Therefore, in order to prevent the dullness phenomenon in cosmetics, it is known to add plate-like boron nitride or synthetic mica, which causes little color change when wet with sebum, to powder cosmetics ( JP-A-61-150058, JP-A-63-185810). However, even if a plate-like powder with little color change when wet with sebum is used in powder cosmetics, it does not mean that color change does not completely occur, and other extender pigments and other extender pigments that are mixed at the same time. Since the color change of the colorant cannot be prevented, it was not satisfactory as a dull powder cosmetic.

Further, in recent years, spherical silica powder containing titanium oxide (encapsulated powder) is used as a powder for suppressing the darkening of powder cosmetics due to an increase in whiteness when wet with sebum and preventing the dull phenomenon. ) Has been proposed (JP-A-61)
-47410 gazette and cosmetic daily report August 1, 1991 No. 8485). However, since this encapsulated powder is spherical, it has good spreadability, but it has poor adhesion to the skin, and if it is added in an amount sufficient to prevent dullness, the cosmetic coating film has the drawback of giving a powdery finish. Was.

On the other hand, as a plate-like silicon dioxide powder containing fine particles of titanium oxide, it has been proposed to mix it into cosmetics from the viewpoint of an ultraviolet ray prevention effect. It was not excellent in usability such as spreadability. For example, JP-A-1-143
According to Japanese Patent No. 821, although a high ultraviolet ray-preventing effect is obtained, it is difficult to apply finely and uniformly, and the content of the fine particle titanium oxide in the plate-like silicon dioxide powder containing the fine particle titanium oxide is too high. Since the effect of increasing the whiteness when it gets wet with sebum is not sufficiently exerted, the ultraviolet ray prevention effect is high, but the dullness prevention effect is not sufficiently exerted and the usability such as slipping and spreading is further reduced. Wasn't quite satisfactory either. Further, in Japanese Patent Laid-Open No. 6-116119,
Although it has an effect of preventing ultraviolet rays, the effect of preventing dullness is not sufficiently exerted due to the fact that it is difficult to apply it in a finely and uniformly manner and the compounding amount of the plate-like silicon dioxide containing fine particle titanium oxide is small.

Accordingly, the object of the present invention is to provide good slip,
It is an object of the present invention to provide a powder cosmetic having excellent spreadability on the skin, no unevenness, and a high dullness suppressing effect.

[0007]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that a cosmetic containing (A) a plate-like silicon dioxide powder containing fine particles of titanium oxide and (B) a spherical powder is The inventors have found that the above objects can be achieved and completed the present invention.

That is, the present invention relates to a powder cosmetic containing the following components (A) and (B). (A) Plate-like silicon dioxide powder containing fine particles of titanium oxide (B) Spherical powder

The powder cosmetic of the present invention will be described in detail below.

The form of the plate-like silicon dioxide powder containing fine particle titanium oxide which is the component (A) used in the present invention is not limited to the form of a complex in which the fine particle titanium oxide is dispersed in the plate-like silicon dioxide powder. A multi-component system in which titanium and plate-like silicon dioxide powder are uniformly mixed may be used. By controlling the particle size of the particulate titanium oxide, a higher dullness suppressing effect can be obtained by utilizing light scattering on the surface of the particulate titanium oxide. Preference is given to using silicon dioxide powder.

The fine titanium oxide particles have an average particle size of preferably 10 to 1000 nm, more preferably 10 to 30 nm.
It is 0 nm. If the average particle size is less than 10 nm, the transparency of the fine particle titanium oxide becomes too high, and the effect of increasing whiteness when wet with sebum is insufficient, while 1
If it exceeds 000 nm, it tends to be difficult to obtain a powder in the form of a composite uniformly dispersed in plate-like silicon dioxide.

The above plate-like silicon dioxide powder [component (A)]
The content of fine particle titanium oxide in is preferably 1 to
It is 60% by weight (hereinafter, simply indicated by "%"), and more preferably 5 to 50%. If the content is less than 1%, the dullness suppression ability is not sufficient, while if it exceeds 60%, the whiteness is significantly increased before being wet with sebum,
On the contrary, the dullness suppressing ability tends to decrease.

Further, various properties may be improved by adding a component other than the particulate titanium oxide and the plate-like silicon dioxide to the plate-like silicon dioxide powder [component (A)] containing the particulate titanium oxide. However, the total amount of the fine particle titanium oxide and the plate-like silicon dioxide must be 80% or more from the viewpoints of the dullness suppressing ability and the stability of the plate-like silicon dioxide powder containing the fine particle titanium oxide. Examples of other components (less than 20%) that can be added to the plate-like silicon dioxide powder containing fine particle titanium oxide include iron oxide, alumina, and zirconia.

Plate-shaped silicon dioxide powder [component (A)]
The particle size of is preferably 1 to 100 μm, more preferably 1 to 30 μm, and most preferably 1 to 20 μm. When the particle size is less than 1 μm, slipperiness is deteriorated and spreadability on the skin is deteriorated, so that the powder cosmetic intended by the present invention cannot be obtained. On the other hand, when it exceeds 100 μm, It causes a rough and uncomfortable feeling to the skin and is not preferable as a powder cosmetic.

Plate-shaped silicon dioxide powder [component (A)]
The thickness of the particles is preferably 0.03 to 3 μm, more preferably 0.05 to 2 μm, and most preferably 0.08 to
It is 1 μm. When the thickness of the particles is less than 0.03 μm, it becomes difficult to uniformly disperse the fine particle titanium oxide,
It is not possible to obtain the plate-like silicon dioxide powder containing the fine particle titanium oxide according to the present invention. On the other hand, when it exceeds 3 μm, it becomes difficult to prepare a plate-like particle shape,
The plate-like silicon dioxide powder containing fine particle titanium oxide according to the present invention cannot be obtained.

Plate-shaped silicon dioxide powder [component (A)]
Content of the powder cosmetic of the present invention is preferably 0.1 to 95%, more preferably 0.1 to 70%, and most preferably 1 to 60%. The above content is 0.1%
When it is less than 10, the effect of suppressing dullness is not exhibited, while on the other hand, 9
When it exceeds 5%, the powder component becomes too much and the cosmetic coating film becomes powdery, which is not preferable as a powder cosmetic.

As the spherical powder which is the component (B) used in the present invention, polyester, polyethylene, polystyrene, polymethylmethacrylate, cellulose, 12 nylon, 6 nylon, a copolymer of styrene / acrylic acid,
Examples thereof include spherical resin powders such as polypropylene, polyvinyl chloride, Teflon and polymethylsilsesquioxane, and spherical inorganic powders such as spherical silica, spherical zinc oxide, spherical titanium oxide and spherical alumina.

The average particle size of the spherical powder [component (B)] is preferably 1 to 50 μm, more preferably 2 to 30.
μm. If the particle size is less than 1 μm, the spread is poor, while if it exceeds 50 μm, the adhesiveness is unfavorable.

In the present invention, it is also possible to use a spherical composite powder in which a part or all of the spherical powder [component (B)] is coated with a fine particle metal oxide.
As the fine particle metal oxide, one or more kinds selected from the group consisting of fine particle titanium oxide, fine particle zinc oxide and fine particle zirconia are preferably cited. The coating amount of the fine particle metal oxide in the spherical composite powder coated with the fine particle metal oxide is preferably less than 60%, more preferably less than 50% with respect to the spherical powder. When the coating amount is 60% or more, it is not preferable because the fine particle metal oxide cannot be coated uniformly and the feel is deteriorated.

The content of the spherical powder [component (B)] is
In the whole powder cosmetics of the present invention, preferably 0.1 to 70
%, More preferably 0.1 to 60%, most preferably 0.3 to 50%. When the content is less than 0.1%, slipperiness is poor and spreadability on the skin is reduced.
As it is difficult to apply uniform makeup and the usability is reduced,
It also becomes difficult to exert the effect of suppressing dullness. On the other hand, if it exceeds 70%, the components of the spherical powder are excessively increased, the adhesiveness is deteriorated to give a powdery finish, and the effect of suppressing dullness is not sufficiently exerted, which is not preferable as a powder cosmetic.

In the present invention, the content ratio of the component (A) to the component (B) is (A) / (B) by weight.
Is preferably 0.1 / 1 to 50/1, more preferably 0.5 / 1 to 30/1. The ratio of the above contents is 0.
If it is less than 1/1, the ratio of the spherical powder becomes too large, resulting in a powdery finish, while 50/1
If it exceeds, the ratio of the spherical powder becomes too small, so that the spreadability is deteriorated and the effect of suppressing dullness is not sufficiently exerted.

The plate-like silicon dioxide powder containing fine particle titanium oxide, which is the component (A), and the spherical powder, which is the component (B), are appropriately hydrophobic depending on the purpose of the powder cosmetic as a control of blending. It may be processed.

As the method for the above-mentioned hydrophobic treatment, treatment with a silicone compound such as methylhydrogenpolysiloxane, high-viscosity silicone oil and silicone resin,
Treatment with surfactants such as anion activator and cation activator, treatment with polymer compounds such as nylon, polymethylmethacrylate, polyethylene, Teflon, polyamino acid, perfluoro group-containing compound, lecithin, collagen, metal soap, lipophilic Examples thereof include treatment with wax, polyhydric alcohol partial ester or complete ester. However, generally, any method can be used as long as it can be applied to the hydrophobic treatment of the powder, and the method is not limited to these methods.

In addition to the plate-like silicon dioxide powder containing fine particle titanium oxide, which is the component (A), and the spherical powder, which is the component (B), the powder cosmetics of the present invention can be used in general cosmetics. Other components used can be appropriately blended as necessary. As the above-mentioned other components, for example, talc, kaolin, sericite, muscovite, phlogopite, phlogopite, biotite,
Lithia mica, synthetic fluorophlogopite, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate, aluminum silicate,
Inorganic powder such as barium silicate, barium sulfate, strontium silicate, metal tungstate, silica, hydroxyabatite, zeolite, boron nitride, ceramics powder, nylon powder, polyethylene powder, polystyrene powder, benzoguanamine powder, polytetrafluoride Ethylene powder, distyrenebenzene polymer powder, epoxy powder, acrylic powder, organic powder such as microcrystalline cellulose, inorganic white pigments such as titanium oxide and zinc oxide, iron oxide (red iron oxide), inorganic red pigments such as iron titanate Pigments, inorganic brown pigments such as gamma iron oxide, iron yellow oxide, inorganic yellow pigments such as ocher, black iron oxide, inorganic black pigments such as carbon black, inorganic purple pigments such as mango violet and cobalt violet, oxidation Chrome, chromium hydroxide, titanium Inorganic green pigments such as cobalt acid, inorganic blue pigments such as ultramarine blue and navy blue, titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, bismuth oxychloride, titanium oxide-coated talc, fish mackerel foil, colored titanium oxide-coated mica, etc. Pearl pigment, aluminum powder,
Metal powder pigments such as copper powder, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red 220
No. 226, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, Blue No. 404, and other organic pigments, Red No. 3, Red No. 104.
Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3 and Blue No. 1 Organic pigments such as zirconium, barium or aluminum lake, natural pigments such as chlorophyll, β-carotene, squalane, liquid paraffin, petrolatum, microcrystalline wax, ozokerite, ceresin, myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid. , Cetyl alcohol acid, hexadecyl alcohol, oleyl alcohol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, neopentyl glycol di-2-ethylhexanoate, tri-2-ethyl Hexanoic acid glycero , Oleic acid-2-octyldodecyl, isopropyl myristate, triisostearate glycerol tri-coconut oil fatty acid glycerol, tri-2-ethylhexanoate, glycerol, oleic acid -2
-Octyldodecyl, isopropyl myristate, glycerol triisostearate, coconut oil fatty acid glycerol, olive oil, avocado oil, beeswax, myristyl myristate, mink oil, various hydrocarbons such as lanolin, silicone oil, perfluoropolyether, higher fatty acid, Oily components such as oils and fats, esters, higher alcohols, waxes, resins such as alkyd resins and urea resins, plasticizers such as camphor and acetoltributyl citrate, ultraviolet absorbers, antioxidants, preservatives, surface active agents Examples include agents, moisturizers, fragrances, thickeners and the like.

The powder cosmetics of the present invention are used in various forms by a conventional method, and the forms are not particularly limited, but powder foundations, dual-purpose powder foundations, oily foundations, powder eye shadows, emulsion type foundations, and blushers. , White powder, face powder and other make-up cosmetics, makeup base cream, sunscreen emulsion, etc.

[0026]

EXAMPLES The powder cosmetics of the present invention will be described in more detail below with reference to examples and comparative examples. However, the invention is not limited to these examples.

First, the powder cosmetics of the present invention (Examples 1 to 1)
Production examples (Production Examples 1 to 8) of the plate-like silicon dioxide powder [component (A)] containing fine particle titanium oxide used in Nos. 8, 20 and 21) are shown below. Are not limited to these. The plate-like silicon dioxide powder containing the fine particle titanium oxide which is the component (A) according to the present invention includes TSG flakes 30 [fine particle titanium oxide (average particle size 4
4 nm) 30% plate-like silicon dioxide powder, average thickness = 0.5 μm, average particle size = 10 μm] are commercially available, and the commercially available products may be used. It can be produced by any method, and the one produced by this method may be used.

Production Example 1 [Plate-like silicon dioxide powder containing 5% of fine titanium oxide] Tetrabutoxysilane [(C ₄ H ₉ O) ₄ Si] 510
1,200 parts of butanol is mixed with parts by weight (hereinafter, abbreviated as “part”), and this is further mixed with fine particle titanium oxide (average particle size 3
5 nm) and mixed well. This solution
The surface was polished and smoothed, and applied on a stainless steel plate with a thickness of 1 mm, then dried at 100 ° C for 1 hour, and further 900
A thin film is obtained by heating at 10 ° C. for 10 hours. This thin film was allowed to cool to room temperature, pulverized and classified to obtain the desired powder. The obtained powder was a plate-like silicon dioxide powder containing 5% of fine titanium oxide particles, having a thickness of 0.18 μm and an average particle diameter of 7.2 μm.

Production Example 2 [Plate-like Silicon Dioxide Powder Containing 10% Fine Particle Titanium Oxide] 228 parts of tetramethoxysilane [(CH ₃ O) ₄ Si] was mixed with 500 parts of ethanol and 220 parts of 0.1N nitric acid. In addition to this, fine particle titanium oxide (average particle size 35n
m) was mixed with 10 parts and reacted at 40 ° C. for 20 hours while stirring. A 1 mm-thick stainless plate whose surface was polished and smoothed was dipped in this solution and pulled up at a constant rate of 40 cm / min to form a film. This film was dried in the air for 5 minutes and then at 100 ° C. for 2 minutes. By this drying process, the film applied to the stainless steel plate was completely peeled off,
It became a flaky gel. The flake-like gel is heated to 1000 ° C. at a heating rate of 100 ° C./min, and further heated to 10 ° C.
It heat-processed at 00 degreeC for 2 hours. After the treatment, the flaky gel was allowed to cool to room temperature, pulverized, and classified to obtain the target powder. The obtained powder contains 10% fine particle titanium oxide, has a thickness of 0.6 μm, and has an average particle size of 4.5.
It was a plate-like silicon dioxide powder having a size of μm.

Production Example 3 [Plate-like silicon dioxide powder containing 20% fine titanium oxide particles] 200 parts of tetramethoxysilane [(CH ₃ O) ₄ Si] was mixed with 400 parts of ethanol and 200 parts of 0.1N nitric acid. In addition to this, fine particle titanium oxide (average particle size 35n
m) was mixed with 20 parts and reacted at 40 ° C. for 20 hours while stirring. A 1 mm-thick stainless plate whose surface was polished and smoothed was dipped in this solution and pulled up at a constant rate of 40 cm / min to form a film. This film was dried in the air for 5 minutes and then at 100 ° C. for 2 minutes. By this drying process, the film applied to the stainless steel plate was completely peeled off,
It became a flaky gel. The flake-like gel is heated to 1000 ° C. at a heating rate of 100 ° C./min, and further heated to 10 ° C.
It heat-processed at 00 degreeC for 2 hours. After the treatment, the flaky gel was allowed to cool to room temperature, pulverized, and classified to obtain the target powder. The obtained powder contains 20% of fine particles of titanium oxide, has a thickness of 0.5 μm, and has an average particle size of 4.7.
It was a plate-like silicon dioxide powder having a size of μm.

Production Example 4 [Plate-like Silicon Dioxide Powder Containing 40% Fine Titanium Oxide] Tetrabutoxysilane [(C ₄ H ₉ O) ₄ Si] 320
700 parts of butanol is mixed with 40 parts, and 40 parts of fine particle titanium oxide (average particle size 21 nm) is further mixed with this, and the mixture is sufficiently stirred. The surface of this solution was polished to make it smooth,
After coating on a stainless steel plate having a thickness of 1 mm, it is dried at 100 ° C. for 1 hour and further heat-treated at 900 ° C. for 10 hours to obtain a thin film. This thin film was allowed to cool to room temperature, pulverized and classified to obtain the desired powder. The obtained powder contains 40% of fine particles of titanium oxide and has a thickness of 0.15 μm,
It was a plate-like silicon dioxide powder having an average particle size of 4.7 μm.

Production Example 5 [Plate-like Silicon Dioxide Powder Containing 50% Fine Titanium Oxide] Tetrabutoxysilane [(C ₄ H ₉ O) ₄ Si] 266
550 parts of butanol, and 50 parts of fine particle titanium oxide (average particle size 35 nm) is further mixed with this, and the mixture is sufficiently stirred. The surface of this solution was polished to make it smooth,
After coating on a stainless steel plate having a thickness of 1 mm, it is dried at 100 ° C. for 1 hour and further heat-treated at 900 ° C. for 10 hours to obtain a thin film. This thin film was allowed to cool to room temperature, pulverized and classified to obtain the desired powder. The obtained powder was a plate-like silicon dioxide powder containing 50% of fine particle titanium oxide, having a thickness of 0.2 μm and an average particle diameter of 6.6 μm.

Production Example 6 [Plate-like silicon dioxide powder containing 30% fine titanium oxide and 5% red iron oxide] Tetramethoxysilane [(CH ₃ O) ₄ Si] 165 parts, ethanol 330 parts and 0.1N nitric acid 160 Parts of the mixture, and further mixed with this fine particle titanium oxide (average particle size 50 n
m) was mixed in an amount of 30 parts, and then 5 parts of red iron oxide was mixed in the mixture and reacted at 40 ° C. for 20 hours while stirring. In this solution,
A stainless plate having a thickness of 1 mm, the surface of which was polished and smoothed, was dipped and pulled up at a constant rate of 20 cm / min to form a film. This film was dried in the air for 5 minutes and then at 100 ° C. for 2 minutes. Through this drying process, the film applied to the stainless steel plate was completely peeled off and turned into a flaky gel. This flake-like gel was heated to 1000 ° C. at a heating rate of 100 ° C./min and further heat-treated at 1000 ° C. for 2 hours. After the treatment, the flaky gel was allowed to cool to room temperature, pulverized, and classified to obtain the target powder. The obtained powder contains 30% of fine titanium oxide and 5% of red iron oxide.
Contains, thickness 0.9 μm, average particle size 10.5
It was a plate-like silicon dioxide powder having a size of μm.

Production Example 7 [Plate-like Silicon Dioxide Powder Containing 30% Fine Titanium Oxide and 5% Zirconia] 165 parts tetramethoxysilane [(CH ₃ O) ₄ Si], 330 parts ethanol and 160 parts of 0.1N nitric acid Parts of the mixture, and further mixed with this fine particle titanium oxide (average particle size 50 n
m) 30 parts, then zirconia 5 parts,
The mixture was reacted at 40 ° C. for 20 hours while stirring. A 1 mm-thick stainless plate whose surface was polished and smoothed was immersed in this solution, and pulled up at a constant rate of 30 cm / min to form a film. This film is dried in the atmosphere for 5 minutes and then at 100 ° C.
And dried for 2 minutes. Through this drying process, the film applied to the stainless steel plate was completely peeled off and turned into a flaky gel. This flake-like gel was heated to 1000 ° C. at a heating rate of 100 ° C./min and further heat-treated at 1000 ° C. for 2 hours. After the treatment, the flaky gel was allowed to cool to room temperature, pulverized, and classified to obtain the target powder. The obtained powder contains 30% of fine particle titanium oxide and 5% of zirconia.
%, The thickness is 0.7 μm, and the average particle size is 11.
It was a plate-like silicon dioxide powder having a size of 1 μm.

Production Example 8 [Plate-like Silicon Dioxide Powder Containing 30% Fine Particle Titanium Oxide and 5% Alumina] 165 parts of tetramethoxysilane [(CH ₃ O) ₄ Si], 330 parts of ethanol and 160 parts of 0.1N nitric acid Parts of the mixture, and further mixed with this fine particle titanium oxide (average particle size 50 n
m) was mixed in an amount of 30 parts, and then 5 parts of alumina was mixed and reacted at 40 ° C. for 20 hours while stirring. In this solution,
A 1 mm-thick stainless plate whose surface was polished and smoothed was dipped and pulled up at a constant rate of 30 cm / min to form a film. This film was dried in the air for 5 minutes and then at 100 ° C. for 2 minutes. Through this drying process, the film applied to the stainless steel plate was completely peeled off and turned into a flaky gel. This flake-like gel was heated to 1000 ° C. at a heating rate of 100 ° C./min and further heat-treated at 1000 ° C. for 2 hours. After the treatment, the flaky gel was allowed to cool to room temperature, pulverized, and classified to obtain the target powder. The obtained powder contains 30% fine particle titanium oxide and 5% alumina.
Contains, thickness 0.8 μm, average particle size 12.8
It was a plate-like silicon dioxide powder having a size of μm.

As the spherical powder which is the component (B) used in the powder cosmetic of the present invention, SP-500 (spherical nylon powder having an average particle size of 5 μm) manufactured by Toray Industries, Inc.,
Microsphere M (spherical polymethylmethacrylate (PMMA) powder having an average particle size of 5 μm) manufactured by Matsumoto Yushi Co., Ltd., SGP-15CS (spherical polystyrene powder having an average particle size of 15 μm) manufactured by Soken Chemical Co., Ltd., Toshiba Silicone Co., Ltd. Tospearl 120 (spherical polymethylsilsesquioxane powder having an average particle size of 2 μm) manufactured by Toshiba Silicone Tospearl 145 (spherical polymethylsilsesquioxane powder having an average particle size of 5 μm), Nippon Steel Chemical Co., Ltd. S-quartz M-15 (spherical silica powder having an average particle size of 15 μm) manufactured by K.K. is commercially available, and the commercially available product may be used. Also, any ordinary method such as emulsion polymerization method or sol-gel method may be used. It is possible to manufacture and the thing manufactured by this may be used.

Further, the powder cosmetic of the present invention (Example 13)
Production Example of Spherical Composite Powder in which the Surface of the Spherical Powder [Component (B)] Used for is coated with Fine Particle Metal Oxide (Production Example 9)
Although an example is also shown, the production example of the fine particle metal oxide-coated spherical composite powder is not limited to this. In addition, as the fine particle metal oxide-coated spherical composite powder, ZP-550 (fine particle zirconium oxide-coated spherical nylon composite powder: average particle size 5 μm) manufactured by Toray Industries, Inc. or ZP manufactured by Toray Industries, Inc.
S-5000IT (fine-particle zirconium oxide-coated spherical silica composite powder: average particle size 5 μm) and the like are commercially available,
The commercially available product may be used, or it may be produced by any ordinary method such as mechanochemical method, and the thus produced product may be used.

Production Example 9 [Spherical Nylon Powder Coated with 30% Fine Particle Titanium Oxide] 6 parts of fine particle titanium oxide (average particle size 50 nm) and 20 parts of spherical nylon powder (SP-500, manufactured by Toray Industries, Inc.) were roughly mixed in advance. Then, this mixture was subjected to mechanochemical treatment by an impact method in a high-speed air stream to obtain spherical nylon powder coated with 30% fine titanium oxide particles. The apparatus for the high-speed air current impact method used here is a hybridization system of Nara Machine Co., Ltd., and the processing condition for the mechanochemical processing is to mix at 10,000 rpm for 3 minutes.

Next, the powder cosmetics of the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. The performance evaluation of the powder cosmetics was carried out on the items listed in the following [Table 1] by a five-level evaluation (average value) by 10 specialist panels. Further, the effect of suppressing dullness was evaluated 6 hours after application. The evaluation results are indicated by the symbols according to the criteria of [Table 2] below.

[0040]

[Table 1]

[0041]

[Table 2]

Examples 1 to 17 and Comparative Examples 1 to 24 [Powder foundation] Ingredients (1) to (Table 3), [Table 4] and [Table 5] below
Of the (24), those necessary for each evaluation sample are mixed with a Henschel mixer, and then the components (25) to (3
A mixture obtained by heating and mixing 0) at 80 ° C. is added and mixed.
This mixture was pulverized with a pulverizer, placed in a fixed amount in a medium plate, and pressure-molded with a press to prepare a powder foundation. The performance of each of the obtained powder foundations was evaluated, and the results are shown in [Table 6] below.
It shows in [Table 7] and [Table 8].

[0043]

[Table 3]

[0044]

[Table 4]

[0045]

[Table 5]

[0046]

[Table 6]

[0047]

[Table 7]

[0048]

[Table 8]

From the results of the above [Table 6], [Table 7] and [Table 8], the following is clear. The powder cosmetics (powder foundation; Examples 1 to 17) of the present invention containing the plate-like silicon dioxide powder containing fine particle titanium oxide and the spherical powder have a high dullness suppressing effect and good spreadability. , It did not give a powdery finish. on the other hand,
Comparative Examples 1 to 24 were not satisfactory at a high level at the same time for the effect of suppressing dullness, the spreadability, and the finish which was not powdery.

Example 18 [Pander Foundation for Both Uses] The following components (1) to (8) were mixed in a Henschel mixer, and then the following components (9) to (13) were added at 80 ° C.
What was heated and mixed in was added and mixed. This was pulverized with a pulsarizer, placed in a fixed amount in an inner plate, and pressure-molded with a press machine to prepare a dual-use powder foundation.
The above-mentioned dual-use foundation comprising a plate-like silicon oxide powder containing fine particle titanium oxide and a spherical powder according to the present invention has a high dullness suppressing effect, good spreadability, and a dual-use powder foundation that does not give a powdery finish. Met.

(1) Fluorine compound treatment (* 1) Fine particle titanium oxide 30% + alumina 5% content Silicon dioxide powder (Production Example 8) 30% (2) Fluorine compound treatment (* 1) Spherical nylon powder (SP- 500 Toray Co., Ltd. 10% (3) Fluorine compound treatment (* 1) Mica remaining amount (4) Fluorine compound treatment (* 1) Talc 10% (5) Fluorine compound treatment (* 1) Titanium oxide 8% (6 ) Fluorine compound treatment (* 1) Iron oxide (red, yellow, black) 3% (7) Fluorine compound treatment (* 1) Fine particle zinc oxide 2% (8) Fluorine compound treatment (* 2) Fine particle titanium oxide (average grain) Diameter 35nm) 1% (9) Dimethylpolysiloxane 3% (10) Perfluoropolyether (FOMBLIN HC-04 Ausimont) 8% (11) Hardened oil 1% (12) Octyl methoxycinnamate 1% (13) Preservative Agent Perfume 1% ──── Total 100% (* 1); those 5% coated with perfluoro ethyl phosphoric acid ester (* 2), in that the coated 7% at perfluoroethyl phosphoric acid ester

Example 19 [Oil foundation] The following components (1) to (8) are mixed with a Henschel mixer. Separately from this, the following components (9) to (14) were added at 90 ° C.
Are heated and dissolved in, and the components (1) to (8) that have been mixed in advance are added thereto, and dispersed and mixed by a stirrer. This 3
Knead with this roller and heat the kneaded product again to dissolve it. After defoaming, the following component (15) was added, gently mixed, heated to 85 ° C., poured into an inner plate and filled, and cooled to prepare an oily foundation. The oily foundation comprising the particulate titanium oxide-containing plate-like silicon dioxide powder and spherical powder according to the present invention has a high dullness suppressing effect, good spreadability, and is an oily foundation that does not give a powdery finish. there were.

(1) Silicone treatment (* 3) Plate-like silicon dioxide powder containing 30% fine particles of titanium oxide (TSG30 Nippon Sheet Glass Co., Ltd.) 10% (2) Spherical polymethylmethacrylate (PMMA) powder (MP- 1000 Soken Chemical Co., Ltd. 8% (3) Silicone treatment (* 3) Mica residual amount (4) Silicone treatment (* 3) Mica titanium 3% (5) Silicone treatment (* 3) Titanium oxide 11% (6) Silicone treatment (* 3) Iron oxide (red, yellow, black) 4% (7) Silicone treatment (* 3) Fine particle zinc oxide 1% (8) Silicone treatment ( * 3) Fine particle titanium oxide (average particle size 35 nm) 1% (9) Dimethylpolysiloxane 10% (10) Squalane 25% (11) Hardened oil 5% (12) Candelilla wax 1% (13) Aluminum distearate 2 % (14) High-purity purification Norin 1% (15) Preservative, perfume 1% ──── Total 100% (* 3); those 2% coated with methylhydrogenpolysiloxane

Example 20 [Powder eye shadow] The following components (1) to (8) were mixed with a Henschel mixer, and then the following components (9) to (13) were added at 80 ° C.
What was heated and mixed in was added and mixed. This was pulverized with a pulsarizer, placed in a fixed amount in a medium plate, and pressure-molded with a press to prepare a powder eye shadow. The powder eye shadow containing the plate-like silicon dioxide powder containing spherical titanium oxide and spherical powder according to the present invention,
It was a powder eye shadow that had a high dullness suppressing effect, good spreadability, and did not give a powdery finish.

(1) Lecithin treatment (* 4) Fine particle titanium oxide 30% + red iron oxide 5% contained silicon dioxide powder (Production Example 6) 35% (2) Spherical silicone resin powder (Tospearl 120 Toshiba Silicone) 10% (3) Lecithin treatment (* 4) Mica remaining (4) Lecithin treatment (* 4) Mica titanium 6% (5) Silicone treatment (* 5) Ultramarine 8% (6) Silicone Treatment (* 5) Dark blue 10% (7) Silicone treatment (* 5) Iron oxide (red, yellow, black) 2% (8) Silicone treatment (* 5) Fine particle titanium oxide (average particle size 35 nm ) 1% (9) Dimethylpolysiloxane 6% (10) Squalane 2% (11) Hardened oil 0.5% (12) Vaseline 1% (13) Preservatives and fragrances 1% ──── Total 100% (* 4); 5% coated with soy lecithin (* 5); methyl ha 2% coated with hydrogen polysiloxane

Example 21 [Emulsion type foundation] The following components (1) to (5) are mixed with a Henschel mixer. Separately, the following components (6) to (9) are mixed,
The components (1) to (5) previously mixed are added to this and dispersed and mixed by a stirrer. The following components (10) to (1
The mixture of 2) was slowly added with stirring over 30 minutes, and the mixture was further stirred for 10 minutes with a homomixer, defoamed and filled in a bottle to prepare a two-layer emulsion foundation. The emulsion type foundation comprising the particulate titanium dioxide-containing plate-like silicon dioxide powder and spherical powder according to the present invention has a high dullness suppressing effect, good spreadability, and an emulsion type which does not give a powdery finish. It was a foundation.

(1) Silicone treatment (* 6) Silicon dioxide powder containing 50% fine particles of titanium oxide (Production Example 5) 8% (2) Silicone treatment (* 6) Spherical silica (Esquartz M-15 Nippon Steel Chemical Co., Ltd. 2% (3) Silicone treatment (* 6) Titanium oxide 3% (4) Silicone treatment (* 6) Iron oxide (red, yellow, black) 1.5% (5) Silicone treatment (* 6) Fine particle zinc oxide 3% (6) Dimethylcyclopolysiloxane 20% (7) Dimethylpolysiloxane 10% (8) Octyl methoxycinnamate 2% (9) Dimethylsiloxane / methylpoly Oxyethylene siloxane copolymer 1% (10) Glycerin 2% (11) Ethanol 8% (12) Water Remaining amount ──── Total 100% (* 6); 2% coating with methyl hydrogen polysiloxane thing

[0058]

EFFECTS OF THE INVENTION The powder cosmetic of the present invention contains the plate-like silicon dioxide powder containing fine particles of titanium oxide and the spherical powder, and thus has good smoothness, excellent spreadability on the skin, and no unevenness. It has a high effect of suppressing dullness.

Claims (7)

[Claims] 1. A powder cosmetic containing the following components (A) and (B). (A) Plate-like silicon dioxide powder containing fine particles of titanium oxide (B) Spherical powder 2. The component (A) has an average particle size of 10 to 10.
The powder cosmetic according to claim 1, which is a plate-like silicon dioxide powder containing fine particle titanium oxide of 00 nm. 3. The powder cosmetic according to claim 1 or 2, wherein the component (A) is a plate-like silicon dioxide powder containing 1 to 60% by weight of fine particle titanium oxide. 4. The component (B) has an average particle size of 1 to 50 μm.
The powder cosmetic according to claim 1, which is a spherical powder of m. 5. The powder cosmetic according to claim 1, wherein a part or all of the component (B) is a spherical composite powder coated with a particulate metal oxide. 6. The powder cosmetic according to claim 5, wherein the fine particle metal oxide is one or more selected from the group consisting of fine particle titanium oxide, fine particle zinc oxide and fine particle zirconia. 7. The content of the component (A) is 0.1 to 95% by weight in the whole powder cosmetics, and the content of the component (B) is 0.1 to 70 in the whole powder cosmetics. The powder cosmetic according to any one of claims 1 to 6, wherein the powder cosmetic is contained in a weight percentage.