JPH05201830A - Porous spherular powder and cosmetic containing the same powder - Google Patents

Abstract

PURPOSE:To provide the subject porous spherular powder exhibiting a high-water diffusion rate and a suitable oil absorption and capable of producing a cosmetic excellent in spreading on the skin, feeling in use and durability of make up effect. CONSTITUTION:The objective pressure-non-collapsible porous spherular powder having 10 to 200mum average particle size and >=0.4cm<3>/g total pore volume is obtained by using one or more kinds of materials selected from a water-soluble polymer, a hydrophobic polymer and an inorganic colloid solution as a binder and granulating powder for cosmetics, preferably spherular powder having 0.1 to 10mum average particle size and 1 to 800m<2>/g specific surface area according to the spray drying method using a spray dryer of disk type, nozzle type, etc. In the above-mentioned granulation, the above-mentioned binder is blended preferably in an amount of 5 to 50 pts.wt., especially 10 to 30 pts.wt. based on 100 pts.wt. powder. A cosmetic containing the above-mentioned porous spherular powder can let sweat secreted from the skin with time escape, suitably absorb sebum and, therefore, maintain its make up effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous spherical powder and a cosmetic containing the same, more specifically, a porous spherical powder having a high moisture diffusion rate and an appropriate oil absorption amount, and The present invention relates to a cosmetic composition containing the same, having good spreadability on the skin, good feeling in use, and excellent durability of cosmetic effect.

[0002]

2. Description of the Related Art Perspiration and sebum secretion from the skin are one of the causes of deterioration of makeup lasting effect and so-called makeup lasting effect. In order to respond to such sweat and sebum, and to enhance the durability of the cosmetic effect, the powder conventionally blended in cosmetics is surface-treated with an oily component or the like to improve water repellency or powder with a large oil absorption amount is used. It is compounded.

[0003]

However, the surface treatment of powder with an oily component has an effect on stickiness during use and oil shine over time, and a powder with a large oil absorption absorbs sebum more than necessary. As a result, it is not sufficient in terms of the sustainability of the cosmetic effect, such as causing skin tightness and bulkiness. Therefore, a cosmetic having excellent durability of the cosmetic effect has been desired.

On the other hand, a pressure-disintegrating spherical powder which is gradually disintegrated by a coating operation at the time of use is known (JP-A 3-1).
No. 81410, Japanese Patent Laid-Open No. 3-197412), the spreadability to the skin, the feeling of adhesion, and the like have been improved by incorporating the powder into cosmetics.

[0005]

Under such circumstances, the present inventor has conducted diligent research, and as a result, granulated a cosmetic powder with a specific binder into a specific particle size and a total pore volume. According to the present invention, it has been found that the pressure-non-disintegrating porous spherical powder obtained as a result and the cosmetics containing the same have unprecedented durability of the cosmetic effect and have excellent feeling and usability. Was completed.

That is, according to the present invention, the powder for cosmetics is prepared by using at least one selected from water-soluble polymers, hydrophobic polymers and inorganic colloidal liquids, and has an average particle size of 10 to 200 μm.
In addition, the present invention provides a pressurized non-disintegrating porous spherical powder granulated to have a total pore volume of 0.4 cm ³ / g or more and a cosmetic containing the same.

The powder for cosmetics used in the present invention has an average particle size of 0.01 to 0.01, which allows control of oil absorption during granulation.
It may be a powder having a particle size of 20 μm and a specific surface area of 1 to 800 m ² / g. For example, white pigments such as titanium oxide and zinc oxide; yellow iron oxide, red iron oxide, black iron oxide, ultramarine blue, dark blue, tar pigments, natural pigments. Coloring pigments such as talc, mica, sericite, calcium carbonate, magnesium carbonate, silicic acid anhydride,
Examples include extender pigments such as alumina and kaolin; bright pigments such as bismuth oxychloride and titanium mica; organic powders such as nylon, polystyrene, polymethylmethacrylate, crystallized cellulose, and starch. Average particle size 0.0
A spherical powder having a particle size of less than 1 μm or 20 μm or more is not preferable because it is difficult to control the diffusion rate of water and the oil absorption amount. Among these powders for cosmetics, in order to obtain a particularly effective porous spherical powder, a spherical powder having an average particle diameter of 0.1 to 10 μm and a specific surface area of 1 to 800 m ² / g, especially ,Nylon,
Polystyrene, polymethylmethacrylate, silicic acid anhydride and the like are preferable. Moreover, as a commercially available product, for example, nylon 12SP-500 (manufactured by Toray), Fine Pearl (manufactured by Sumitomo Chemical), Godball E2-824C, Godball D11-796C (both manufactured by Suzuki Yushi Kogyo Co., Ltd.) and the like are used. can do. The mixing ratio of these spherical powders and other cosmetic powders is 100: 0 to 0:10.
0, especially 90:10 to 40:60 is preferable.

In the present invention, the water-soluble polymer used for granulation is, for example, gum arabic, polyvinyl alcohol, polyethylene glycol, sodium alginate, carboxymethyl cellulose, etc .; The hydrophobic polymer is, for example, ethyl cellulose, nylon, etc. Examples of the inorganic colloidal liquid include aqueous sols such as silica, alumina, titania and zirconia. When an inorganic colloid liquid is used, the particle size of the dispersed colloid is 50
The range of ˜1000 Å, particularly 100 to 300 Å is preferable. Those less than 50Å are difficult to obtain, and 100
If it exceeds 0 Å, the binding force of the particles becomes weak, and it becomes difficult to form a granulated product. As a commercially available product, for example, Adelite AT (manufactured by Asahi Denka Co., Ltd.), Ludox HS40 (manufactured by DuPont), Neo Sunvale (manufactured by Catalysis Co., Ltd.), Alumina Cleazo (manufactured by Kawaken Fine Chemical Co., Ltd.) and the like can be used.

These water-soluble polymer, hydrophobic polymer and inorganic colloidal liquid are used as a binder, and they can be used alone or in combination of two or more kinds. And powder 1
It is preferable to add 5 to 50 parts by weight, especially 10 to 30 parts by weight to 00 parts by weight. If it is less than 5 parts by weight, the strength will be weak even if it is granulated, and if it exceeds 50 parts by weight, the total pore volume becomes too small, which is not preferable.

As a method of granulating the porous spherical powder of the present invention, a spray drying method is preferable, and generally known such as a disk (high speed rotating disk) type, a nozzle (pressurizing nozzle, two-fluid nozzle, etc.) type. Although it can be carried out using a conventional spray dryer, it is particularly preferred to use a disk type spray dryer because it can be sprayed to a relatively uniform particle size and is suitable for atomization.

The average particle size of the porous spherical powder of the present invention needs to be adjusted to 10 to 200 μm by controlling the granulation conditions. If it is less than 10 μm, it is difficult to obtain a spherical granulated product, and if it exceeds 200 μm, a particle feeling is felt, which is not preferable.

The total pore volume of the porous spherical powder of the present invention must be 0.4 cm ³ / g or more. Here, the total pore volume may be measured by a mercury porosimeter, and if it is less than 0.4 cm ³ / g, the diffusion rate of water is slow and the oil absorption is small, so that the desired cosmetic effect persistence is obtained. It is not preferable because it cannot be obtained.

The porous spherical powder of the present invention is non-disintegrating under pressure, and is 260 g / cm, for example, when it is determined as shear fracture strength from the degree of change in frictional resistance value against load using a Haydon surface property measuring machine. ^It is preferably ² or more. Factors that affect the particle strength include the types and blending ratios of the powder for cosmetics and the binder, spraying conditions, and the like, and in order to obtain non-disintegration under pressure, by selecting these conditions appropriately. You can do it.

The cosmetic of the present invention can be produced by mixing the above-mentioned porous spherical powder according to a usual method, and the amount thereof can be adjusted depending on the dosage form of the cosmetic, purpose and the like. Although not limited, it is preferably in the range of 0.1 to 90% by weight.

The cosmetics of the present invention include, in addition to the porous spherical powder of the present invention, which is an essential component, other components used in ordinary cosmetics as necessary, such as white / body / coloring pigments, pearlescent agents, and natural agents. Minerals, organic powders, oil agents, metal soaps, surfactants, moisturizers, preservatives, fragrances, and various other additives can be appropriately selected and added.

The cosmetics of the present invention may be of any type such as powder, press, liquid, stick, etc., emulsification type, oil type, etc., regardless of the product form and shape, for example, white powder, foundation, It can be cheek, eye shadow, lipstick, eyeliner, mascara, eyebrow, foundation cream, powdered lotion.

[0017]

OPERATION AND EFFECTS OF THE INVENTION The porous spherical powder of the present invention has a high moisture diffusion rate and absorbs sebum appropriately. Therefore, the cosmetic of the present invention containing the same can maintain the cosmetic effect by escaping sweat secreted from the skin over time and absorbing sebum appropriately. Further, due to the shape of the porous spherical powder, it has excellent spreadability throughout the makeup operation and a uniform makeup film is obtained. Further, in the case of a pressed cosmetic, caking is less likely to occur and transferability to a coated body is excellent.

[0018]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples. Example 1 The components shown in Table 1 were mixed with a homomixer at 6000 rpm for 10 minutes to obtain a uniform slurry. Next, spray dryer [Okawara Kakohki Co., Ltd., spray dryer
L-12 type (disk type)] was spray-dried under the spraying conditions shown in Table 1 to obtain a porous spherical powder. Table 1 shows these physical property values.

[0019]

[Table 1]

The products 1 to 3 of the present invention obtained as described above, spherical silicic anhydride having an average particle size of 1 μm (comparative product 1), and crystallized cellulose having an average particle size of 10 μm (comparative product 2) were subjected to water diffusion. The rate and oil absorption were determined. The results are shown in Table 2.

[0021]

[Table 2]

As is clear from the results shown in Table 2, the product 1 of the present invention
Each of the powders Nos. 3 to 3 had a high water diffusivity and was excellent in that the oil absorption could be controlled appropriately.

Example 2 A powder foundation having the composition shown in Table 3 was produced,
About 20 panelists for each, about the transferability to the application body, the good spreadability, and the sustaining of the cosmetic effect over time, the durability of the makeup film, the lack of oiliness in sebum and the lack of firmness of the skin. It was evaluated according to the following criteria. The results are shown in Table 3. (Production method) A. The components (1) to (8) are mixed by stirring. B. Components (9) to (12) are heated and melted. C. Add B to A, mix and grind to homogenize. D. Press molding C into a gold plate to obtain a powder foundation. (Evaluation criteria) Evaluation point Very good 4 points Good 3 points Normal 2 points Poor 1 point Very bad 0 points Judgment Average score is 3.0 or more and 4.0 or less ◎ Average score is 2.0 or more and less than 3.0 ○ Average score is 1.0 or more and less than 2.0 △ Average score is 0 or more and less than 1.0 ×

[0024]

[Table 3]

As is clear from the results of Table 3, cosmetics containing the porous spherical powder according to the present invention (Products 4 and 5 of the present invention).
All had excellent durability of the cosmetic effect, transferability to the coated body and spreadability were also very good, and both usability and usability were good.

Example 3 (Powdered white powder) (Component) (wt%) (1) Powder of the product 2 of the present invention 40.0 (2) Talc 18.0 (3) Remaining amount of mica (4) Color pigment 2. 0 (5) squalane 5.0 (6) liquid paraffin 5.0 (7) perfume proper amount (production method) A. Components (1) to (4) are mixed with stirring. B. Components (5) to (7) are heated and melted. C. Add B to A, mix and grind to make uniform. D. C is pressed into a gold plate to obtain white powder. The white powder obtained as described above is excellent in transfer to a coated body, good spreadability, and durability of a cosmetic film,
In addition, there was no oily light on the sebum with time and a feeling of tightness on the skin.

Example 4 (Liquid foundation) (Component) (wt%) (1) Powder of the product 3 of the present invention 1.0 (2) Titanium oxide 10.0 (3) Talc 2.0 (4) Color pigment 3.0 (5) Bentonite 3.0 (6) Purified water 60.6 (7) Triethanolamine 0.6 (8) Propylene glycol 12.0 (9) Methyl paraoxybenzoate 0.1 (10) Stearic acid 1.2 (11) Cetanol 1.0 (12) Sorbitan sesquioleate 0.5 (13) Sorbitan monooleate 0.5 (14) Squalane 4.0 (15) Perfume 0.5 (Production method) A. After mixing components (1) to (9), heat and dissolve to 70 ° C.
To B. After mixing components (10) to (15), heat to dissolve and
Bring to 0 ° C. C. A is added to B with stirring to emulsify and then cooled to obtain a liquid foundation. The liquid foundation obtained as described above is
The makeup film was uniform, the durability of the makeup film was excellent, and no sebum oil shines over time.

Example 5 (base cream) (ingredient) (% by weight) (1) Powder of the product 3 of the present invention 2.0 (2) Talc 5.0 (3) Color pigment 0.5 (4) Bentonite 3 0.0 (5) Purified water 71.4 (6) Triethanolamine 0.5 (7) Propylene glycol 12.0 (8) Methyl paraoxybenzoate 0.1 (9) Stearic acid 1.0 (10) Cetanol 1 .0 (11) sorbitan sesquioleate 0.5 (12) sorbitan monooleate 0.5 (13) squalane 2.0 (14) perfume 0.5 (production method) A. After mixing components (1) to (8), heat and dissolve to 70 ° C.
To B. After mixing the components (9) to (14), heat and dissolve to 70
To ℃. C. A is added to B with stirring to emulsify and then cooled to obtain a base cream. The base cream obtained as described above had a uniform makeup film, and further maintained the makeup effect of the foundation used in combination.

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[Procedure amendment]

[Submission date] February 17, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

The powder for cosmetics used in the present invention has an average particle size of 0.01 to 0.01, which allows control of oil absorption during granulation.
It may be a powder having a particle size of 20 μm and a specific surface area of 1 to 800 m ² / g. For example, white pigments such as titanium oxide and zinc oxide; yellow iron oxide, red iron oxide, black iron oxide, ultramarine blue, dark blue, tar pigments, natural pigments. Coloring pigments such as talc, mica, sericite, calcium carbonate, magnesium carbonate, silicic acid anhydride,
Examples include extender pigments such as alumina and kaolin; bright pigments such as bismuth oxychloride and titanium mica; organic powders such as nylon, polystyrene, polymethylmethacrylate, crystallized cellulose, and starch. Average particle size 0.0
A powder for cosmetics having a particle size of less than 1 μm or 20 μm or more is not preferable because it is difficult to control the diffusion rate of water and the oil absorption. Among these powders for cosmetics, in order to obtain a particularly effective porous spherical powder, the average particle size is 0.1 to 10 μm.
Spherical powders having a specific surface area of 1 to 800 m ² / g, nylon, polystyrene, polymethylmethacrylate, silicic acid anhydride and the like are preferable. Further, as commercially available products, for example, nylon 12SP-500 (manufactured by Toray), Fine Pearl (manufactured by Sumitomo Chemical), Godball E2-824C, Godball D11-796C (both Suzuki Yushi Kogyo Co., Ltd.)
Manufactured) and the like can be used. The mixing ratio of these spherical powders to other cosmetic powders is 100: 0.
It is preferably 0: 100, particularly preferably 90:10 to 40:60.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

In the present invention, the water-soluble polymer used for granulation is, for example, gum arabic, polyvinyl alcohol, polyethylene glycol, sodium alginate, carboxymethyl cellulose, etc .; The hydrophobic polymer is, for example, ethyl cellulose, nylon, etc. Examples of the inorganic colloidal liquid include aqueous sols such as silica, alumina, titania and zirconia. When an inorganic colloid liquid is used, the particle size of the dispersed colloid is 50
The range of ˜1000 Å, particularly 100 to 300 Å is preferable. Those less than 50Å are difficult to obtain, and 100
If it exceeds 0 Å, the binding force of the particles becomes weak, and it becomes difficult to form a granulated product. As a commercially available product, for example, Adelite AT (manufactured by Asahi Denka Co., Ltd.), Ludox HS40 (manufactured by DuPont), Neo Sunvale (manufactured by Catalysis Co., Ltd.), alumina clear sol (manufactured by Kawaken Fine Chemical Co., Ltd.) and the like can be used.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0019

[Correction method] Change

[Correction content]

[0019]

[Table 1]

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

As is clear from the results shown in Table 2, the product 1 of the present invention
Each of the powders Nos. 3 to 3 had a high water diffusivity and was excellent in that the oil absorption could be controlled appropriately.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction content]

[0024]

[Table 3]

Claims (2)

[Claims] 1. A cosmetic powder comprising one or more selected from water-soluble polymers, hydrophobic polymers and inorganic colloidal liquids, having an average particle diameter of 10 to 200 μm and a total pore volume of 0. Pressurized non-disintegrating porous spherical powder granulated to have a particle size of 0.4 cm ³ / g or more. 2. A cosmetic containing the porous spherical powder according to claim 1.