JP2000309506A - Powder cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a powder cosmetic being liquefied by embrocation, capable of being finished in a greatly excellent feeling in use without causing a squeaky feeling, having excellent storage stability by including a hydrophobilized silicic anhydride having a specific surface area, a silicone-based compound, etc., and water. SOLUTION: This cosmetic contains (A) 0.1-20 wt.% of a hydrophobilized silicic anhydride having >=60 m2/g surface area obtained by treating silicic anhydride by an ordinary hydrophobilizing treatment, for example, adding a hydrophobilizing treatment agent (e.g. trimethylsiloxysilicic acid treated powder, etc.), (B) 0.1-20 wt.% of one or more of a silicone-based compound (e.g. dimethylsilicone cross-linked elastic body, etc.), silicic anhydride, a polysaccharide-based polymer (e.g. xanthan gum, etc.), a cellulosic polymer (e.g. spherical cellulose, etc.), and (C) 30-98 wt.% of water. The cosmetic can be mixed with (D) 0.001-10 wt.% of an unstable component (e.g. bleaching agent, antiinflammetory agent, etc.), in the presence of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder cosmetic which is liquefied by rubbing. More specifically, it is a powder cosmetic which liquefies when applied at the time of use to produce an emulsion-like property, has no squeaky feeling, can obtain a very good feeling of use and finish, is excellent in dispersibility, and has excellent dispersibility. Ingredients that have excellent long-term storage properties, and that are unstable in the presence of water, or that adversely affect the physical properties of products when dissolved in water (hereinafter collectively referred to as "unstable components in the presence of water") Even when blended, stably blend these components,
The present invention relates to a powder cosmetic that can sufficiently exhibit the function of the component.

[0002]

2. Description of the Related Art Conventionally, in the case of powder cosmetics called so-called dry water, water or an aqueous component other than water is powdered by coating it with a hydrophobized powder or the like. It has been done. Improvements in usability of these powder cosmetics are desired, for example, they have a feeling of creaking due to the properties of the powders in which they are incorporated.

[0003] In general, various active ingredients such as drugs are blended in cosmetics. However, for the purpose of promoting the penetration of the drugs into the skin, moisturizing properties, imparting emollient properties, etc.
A method of mixing powder cosmetics with water, oil, liquid cosmetics and the like has also been used, but has a problem in terms of usability and the like.
Furthermore, when this active ingredient is easily decomposed and deteriorated in the presence of water and is unstable and adversely affects the physical properties of the product, the formulation is not limited to the cosmetic dosage form,
There are various restrictions on the container form, storage conditions, handling, etc.

Various techniques have been proposed to address such a problem. For example, JP-A-6-21620 discloses a hydrophobized silicic acid anhydride having a specific surface area, a fluorine compound-coated cosmetic powder, an oily component, an aqueous component, and an unstable active component (unstable component in the presence of water). ) Is disclosed in a powder cosmetic in which the unstable component is stably blended in the presence of water by blending in a specific amount.

[0005] However, in the powder cosmetics described in the above-mentioned publications, a feeling of creaking is caused due to the powder properties of the hydrophobized silicic anhydride and the fluorine compound-coated cosmetic powder which are blended, and the usability of the cosmetics is low. There is a problem in

Furthermore, in the case of aqueous cosmetics such as lotions and serums, powders (hydrophobic powders) such as a lame agent and a pearl agent could not be uniformly compounded with good dispersibility.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and is a powder cosmetic which is a powdery cosmetic which liquefies when rubbed at the time of use to produce a lotion or emulsion-like property while being used in powder form. There is no squeaky feeling, very good usability and finish can be obtained, the product has excellent long-term storage stability, and even when unstable components are mixed in the presence of water, these components are stable. It is an object of the present invention to provide a powder cosmetic that is compounded and liquefied by rubbing so that these functions can be sufficiently exhibited.

Further, the present invention has been difficult to uniformly disperse by sedimentation and floating in aqueous cosmetics systems such as lotions and beauty essences, and it has been difficult to mix them. An object of the present invention is to provide a powder cosmetic in which a gloss component is uniformly dispersed.

[0009]

According to the present invention, there are provided (a) a hydrophobized silicic anhydride having a surface area of 60 m ² / g or more;
1) silicone compound, (b-2) silicic anhydride, (b)
-3) Polysaccharide-based polymer, (b-4) One or two or more selected from cellulose-based polymers, and (c) water-containing powder cosmetics which are liquefied by coating.

The present invention also relates to a powder cosmetic which is liquefied by rubbing, wherein the powder cosmetic further comprises (d) an unstable component in the presence of water.

[0011] The present invention also relates to a powder cosmetic which is liquefied by rubbing, wherein the powder cosmetic further comprises one or more selected from a lame agent and a pearl agent.

The present invention also relates to (a) a surface area of 60 m ² / g
Liquefaction by rubbing, containing the above hydrophobized silicic acid, one or more selected from (b-1) a silicone compound and (b-2) silicic anhydride, and (c) water. The present invention relates to a T zone powder cosmetic.

The present invention also relates to a powder cosmetic containing the above components (a) to (d), wherein the component (d) contains vitamin B
_6, and one or more selected from cyclodextrin and its derivatives,
The present invention relates to a T zone powder cosmetic which is liquefied by rubbing.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

The hydrophobized silicic acid anhydride as the component (a) used in the present invention is obtained by subjecting the surface of fine silica particles to hydrophobizing treatment.

The method of the hydrophobizing treatment may be any method as long as it can impart water repellency to the silicic anhydride, and the method is not limited. Examples thereof include a gas phase method, a liquid phase method, an autoclave method, and a mechanochemical method. An ordinary surface treatment method such as a method can be used.

For example, when the treatment is carried out by adding a hydrophobizing agent to the raw material powder, it may be diluted with an appropriate solvent (dichloromethane, chloroform, hexane, ethanol, xylene, volatile silicone, etc.) and added. You may add directly. For mixing and stirring the powder and the treating agent, a ball mill, a Hogersight ball mill, a vibration ball mill, an attritor, a pot mill, a rod mill, a pan mill, a homomixer, a homodisper, a Henschel mixer, a Nauter mixer, and the like can also be used. In addition to this, a method of polymerizing a cyclic organosiloxane on a powder surface at a low temperature of 100 ° C. or less by a gas phase reaction utilizing the activity of the powder surface (Japanese Patent Publication No. 1-54380), A method of adding a pendant group such as glycerol monoallyl ether to the Si-H portion of the silicone polymer (Japanese Patent Publication No. 1-54381) can also be used.

The hydrophobizing agent is not particularly limited, but may be a fatty acid dextrin-treated powder, a trimethylsiloxysilicate-treated powder, a fluorine-modified trimethylsiloxysilicate-treated powder, a methylphenylsiloxysilicate-treated powder, a fluorine-modified powder. Methylphenylsiloxysilicic acid-treated powder, low-viscosity oily polysiloxane-treated powder such as dimethylpolysiloxane, diphenylpolysiloxane, methylphenylpolysiloxane, etc., gum-like polysiloxane-treated powder, methylhydrogenpolysiloxane-treated powder, fluorine-modified Methyl hydrogen polysiloxane treated powder, methyltrichlorosilane, methyltrialkoxysilane, hexamethyldisilane, dimethyldichlorosilane, dimethyldialkoxysilane, trimethylchlorosilane, trimethyl Alkoxysilane treated powder with an organic silyl compound or their fluorine-substituted body such as, ethyl trichlorosilane, ethyl trialkoxysilane,
Powders treated with organically modified silanes such as propyltrichlorosilane, propyltrialkoxysilane, hexyltrichlorosilane, hexyltrialkoxysilane, long-chain alkyltrichlorosilane, long-chain alkyltriethoxysilane or their fluorine-substituted products, amino-modified polysiloxane treatment Powder, a powder modified with a fluorine-modified polysiloxane, and a powder treated with a fluoroalkylphosphoric acid.

In the present invention, it can be prepared, for example, by covering the surface of fine silica particles with an organosilane compound, a silicone compound or the like. Specific examples include trimethylsiloxylated silicic anhydride, dimethylsiloxylated silicic anhydride, octylsiloxylated silicic anhydride, silicic anhydride treated with silicone oil, silicic anhydride treated with methylpolysiloxane, and the like.

In the present invention, the hydrophobized silicic acid needs to have a surface area of 60 m ² / g or more. If the surface area is smaller than this, the particle size of the hydrophobized silicic acid increases and (c) A large amount of water cannot be oriented on the surface of water as a component, and it becomes difficult to stably powder water.

The amount of component (a) is 0.1 to 20% by weight.
Is preferred, and particularly 0.1 to 10% by weight. If the amount is too small, water as component (c) cannot be sufficiently powdered, and the intended powder form may not be obtained. On the other hand, if the amount is too large, a large amount of water may be powdered. However, it becomes difficult to liquefy even if it is rubbed at the time of use, which is not preferred in terms of functionality.

The component (b) is selected from (b-1) a silicone compound, (b-2) silicic anhydride, (b-3) a polysaccharide polymer, and (b-4) a cellulose polymer. 1 to be chosen
A species or two or more components. These are components for eliminating the feeling of creaking and exhibiting good usability.

The silicone compound as the component (b-1) is not particularly limited as long as it can be blended in cosmetics, and for example, a silicone resin, a crosslinked silicone powder or the like can be used. The silicone resin includes, for example, one or more structural units of SiO ₂ , RSiO _3/2 , and R ₂ SiO (R represents hydrogen, a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group). Copolymers and copolymers whose terminals are blocked with R ₃ SiO _1/2 (R is the same as above) and the like can be mentioned. Specific examples of the crosslinked silicone powder include a dimethylsilicone crosslinked elastic material. Among them, a crosslinked silicone powder is preferably used because the stability of the preparation is kept good and excellent usability is exhibited.

The silicic anhydride as the component (b-2) is
Unlike the component (a), a component not subjected to a hydrophobic treatment is used. There is no limitation on the surface area as in the component (a).

The polysaccharide polymer as the component (b-3) is not particularly limited as long as it can be blended in cosmetics. For example, xanthan gum, dextran, succinoglucan, hyaluronic acid, guar gum, locust Bingham, quince seed, carrageenan, galactan, tragacanth gum, pectin, mannan, starch and the like.

The cellulosic polymer as the component (b-4) is not particularly limited as long as it can be blended into cosmetics, and examples thereof include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, and methylcellulose. Hydroxypropyl cellulose, spherical cellulose and the like can be mentioned.

In the present invention, any of water-soluble and water-insoluble polysaccharide polymers and cellulose polymers can be used.

As the component (b), one or more of the components (b-1) to (b-4) can be used. Among them, crosslinked silicone powder (particularly, dimethylsilicone crosslinked elastic body), xanthan gum, spherical cellulose and the like are particularly preferably used.

The component (b) is used by dissolving or dispersing it in the component (c) to be described later or by uniformly mixing with the component (a).

The upper limit of the amount of component (b) is preferably 20% by weight, more preferably 10% by weight, and particularly preferably 5% by weight. The lower limit is preferably 0.001% by weight, more preferably 0.005% by weight, and particularly 0.01% by weight. If the amount is too small, a squeaky feeling peculiar to the hydrophobized silicic anhydride as the component (a) is produced, and the effect of adding the component (b) does not appear. On the other hand, if the amount is too large, Liquefaction becomes difficult even when applied during use, which is not preferred in terms of functionality.

As the component (c), any water used in ordinary cosmetics can be used without particular limitation.

In the case where one or more components selected from the components (b-1) and (b-2) are used as the component (b) in the components (a) and (c), Since it is a powder cosmetic having an excellent absorption effect, it is preferably used as a T-zone powder cosmetic having an excellent sebum suppression / adsorption effect, for example, in a so-called "T zone" from a forehead to a face portion connected to the nose. be able to. In the case of a T zone powder cosmetic, the blending amounts of the components (b-1) and (b-2) are as follows:
It is preferable to mix a little more, 1 to the total amount of cosmetics
About 20% by weight, especially about 10 to 20% by weight is preferably blended. Thus, as the component (b), particularly (b-
By blending the components 1) and (b-2), particularly preferably the component (b-1), in addition to the usability, it has an excellent sebum absorption effect and is excellent in powder dispersibility for the T zone. A powder cosmetic is obtained.

Here, in the present invention, the "powder cosmetic for T zone" is not limited to the one applied exclusively to the so-called T zone portion extending from the forehead to the nose, but is represented by the T zone portion. It broadly refers to powder cosmetics having excellent sebum suppression / absorption effects, which are used for sites with high sebum secretion or more generally for human skin that secretes sebum.

The component (b) is particularly (b-1),
Even when the component (b-2) is not used, a sebum absorbing effect can be obtained even when a sebum-adsorbing powder such as zinc white, magnesium metasilicate aluminate, calcium alginate or the like is added as an additional component. it can. The preferred compounding amount of these additional components is about 0.01 to 20% by weight.

The amount of the component (c) may be the same as the remaining amount of the total amount of the other essential components and optional components contained in the cosmetic of the present invention. In the present invention, the upper limit is preferably used. Is 98% by weight, particularly 90% by weight, and the lower limit thereof is preferably 30% by weight, particularly 6% by weight.
0% by weight. If the amount is too small, liquefaction becomes difficult when rubbing, while if the amount is too large, powdering becomes difficult, which is not preferred in terms of functionality.

The powder cosmetic of the present invention containing the above-mentioned components (a) to (c) as essential components reduces the feeling of creaking, which has hitherto been regarded as a problem peculiar to powder cosmetics, and is excellent in usability. The effect is obtained. Also good powdering,
It liquefies easily during rubbing and gives a fresh feeling of use.
In particular, when the components (b-1) and (b-2) are used as the component (b), an excellent sebum absorption effect can be obtained.

In the present invention, in addition to the above components (a) to (c), an unstable component in the presence of water may be further added as the component (d).

The unstable component in the presence of water as the component (d) is, for example, a water-soluble component which is incorporated as a drug or the like in cosmetics or pharmaceuticals, and in which the intervention of water is indispensable to exhibit its function. However, it is unstable in the presence of water, such as decomposition, inactivation, crystal precipitation, discoloration, and off-odor due to the effects of contact with water, light, heat, etc. Then, it refers to one that causes separation, aggregation, thickening, and the like. Such components include, for example, whitening agents,
Examples of such agents include anti-inflammatory agents, antibacterial agents, hormonal agents, vitamins, enzymes, clathrate compounds, antioxidants, and plant extracts.

Examples of whitening agents include hydroquinone derivatives such as arbutin, kojic acid, L-ascorbic acid and its derivatives, pantotenyl ethyl ether, tranexamic acid and its derivatives.

L-ascorbic acid generally contains vitamin C
It is said that it has a cell respiratory action, an enzyme activating action, a collagen formation action and a melanin reducing action by its strong reducing action. Examples of L-ascorbic acid derivatives include L-ascorbic acid monoesters such as L-ascorbic acid monophosphate and L-ascorbic acid-2-sulfate, and L-ascorbic acid such as L-ascorbic acid-2-glucoside. Acid glucosides, or salts thereof, and the like.

Examples of the tranexamic acid derivative include tranexamic acid dimers (eg, trans-4- (trans-aminomethylcyclohexanecarbonyl) aminomethylcyclohexanecarboxylic acid, etc.), and esters of tranexamic acid and hydroquinone (eg, Transformer-4
-Aminomethylcyclohexanecarboxylic acid 4'-hydroxyphenyl ester, etc.), esters of tranexamic acid and gentisic acid (e.g., 2- (trans-4-aminomethylcyclohexylcarbonyloxy) -5-hydroxybenzoic acid and salts thereof, Tranexamic acid amides (eg, trans-4-aminomethylcyclohexanecarboxylic acid methylamide and its salts, trans-4- (P-methoxybenzoyl) aminomethylcyclohexanecarboxylic acid and its salts, trans-4-
Guanidinomethylcyclohexanecarboxylic acid and its salts, etc.).

Examples of the anti-inflammatory agent include glycyrrhizinate (eg, dipotassium glycyrrhizinate, ammonium glycyrrhizinate, etc.), allantoin and the like.

Examples of the antibacterial agent include resorcin, sulfur, salicylic acid and the like.

Examples of hormonal agents include oxytocin, corticotropin, vasopressin, secretin,
Gastrin, calcitonin and the like.

As the vitamins, for example, vitamins
B₆, Vitamin B₆Vitamin B such as hydrochloride ₆Derivative, Nico
Nicotinic acid derivatives such as formic acid and nicotinamide
No.

Examples of the enzyme include trypsin, lysozyme chloride, chymotrypsin, semi-alkaline proteinase, serrapeptase, lipase, hyaluronidase and the like.

Examples of the inclusion compound include cyclodextrin (CD) and its derivatives which can include oils such as sebum. In the present invention, it is preferable to use a hydroxyalkylated cyclodextrin (HACD) in which a hydroxyalkyl group is introduced into a hydroxyl group of CD to increase water solubility.

As the hydroxyalkyl group, substituents such as hydroxymethyl, hydroxyethyl, hydroxypropyl, hydroxybutyl and dihydroxypropyl are mainly used, and as a result of these substitution reactions, hydroxymethylcyclodextrin, hydroxyethylcyclodextrin, hydroxypropylcyclopropyl HACD such as dextrin can be obtained.

As the CD, CDs having α, β, and γ structures are known depending on the difference in the number of glucoses. In the present invention, one or more of these CDs are used for hydroxyalkylation. Usually, β-CD is used.
The CD may be used as the mother nucleus. Starch degradation products containing α, β, and γ CDs at the same time can also be used. Among them, hydroxyethylated β-CD and hydroxypropylated β-CD are preferable, but not limited thereto.

The antioxidants include thiotaurine, glutathione, catechin, albumin, ferritin, metallothionein and the like.

[0051] Plant extracts include tea extract, Izayobara extract, Japanese gourd extract, skull extract, oak extract, melilot extract, edulis extract, liquorice extract, peony extract, sabonso extract,
Loofah extract, kina extract, saxifrage extract, clara extract, kohone extract, fennel extract, primrose extract, rose extract, gyno extract, lemon extract,
Chicken extract, aloe extract, shobu root extract, eucalyptus extract, horsetail extract, sage extract, thyme extract, seaweed extract, cucumber extract, clove extract, raspberry extract, melissa extract, carrot extract, maroni extract, peach extract, peach extract, mulberry extract, cornflower Extract, hamamelis extract, licorice extract and the like.

The upper limit of the amount of component (d) is preferably 10% by weight, more preferably 7% by weight, and particularly preferably 5% by weight. The lower limit is preferably 0.001% by weight, more preferably 0.005% by weight, and particularly 0.01% by weight. If the amount is too small, it is difficult to sufficiently exert the function of the active ingredient (d). On the other hand, if the amount is too large, the effect is expected to increase in proportion to the increase in the amount. It becomes difficult.
In the powder cosmetic of the present invention, even when the component (d) is blended, these components can be stabilized, and their functions can be sufficiently exhibited.

The component (d) is particularly vitamin B ₆
And a derivative thereof, a hydroxyalkylated cyclodextrin (HACD) and a derivative thereof, when used, are powder cosmetics having an excellent sebum suppression effect. Can be suitably used. By blending a vitamin B ₆ salt or CD, particularly preferably β-HACD, a T-zone cosmetic powder having an excellent sebum suppression effect and an excellent powder dispersibility can be obtained.

The powder cosmetics of the present invention include the above (a) to
In addition to the component (c) and the component (d), one or more selected from a lame agent and a pearl agent can be further contained. Conventionally, hydrophobic luster components such as lame agents and pearl agents settled or floated in aqueous cosmetics systems such as lotions and serums without uniform dispersion, making it difficult to mix them. . In the dry water preparation of the present invention, the components (a) and (c) can uniformly disperse even a hydrophobic powder component such as a lame agent and a pearl agent, even if the components are blended.

The lame agent and pearl agent are usually
Any component can be used as long as it is a component to be added as a lame agent or a pearl agent to cosmetics. Specifically, pearl pigments such as polyethylene terephthalate, polymethyl methacrylate laminated film powder, titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc. Although illustrated, it is not limited to these examples.

The mixing amount of the lame agent and the pearl agent is preferably about 0.01 to 5% by weight in the powder cosmetic of the present invention.

In addition to the above-mentioned components, the powder cosmetic of the present invention includes various optional components used in ordinary cosmetics, for example, humectants such as polyhydric alcohols such as glycerin, fragrances,
A pH adjuster, a preservative, an ultraviolet absorber and the like can be blended within a range that does not impair the effects of the present invention.

The cosmetic of the present invention is a cosmetic in powder form, which liquefies by rubbing and has no squeaky feeling.
Shows very good usability and excellent powder dispersibility,
It has excellent long-term stability and can stably retain unstable components in the presence of water.

The powder cosmetic of the present invention comprises:
The components (b) to (c) are further adsorbed around the component (d), and the components (b) to (c) and (d) are powdered. In addition,
This adsorbed state was destroyed and powdered (b) ~
The components (c) and (d) ooze out and liquefy,
The use feeling of the component (b) and the effectiveness of the component (d) are exhibited.

The method for producing the powder cosmetic of the present invention is not particularly limited as long as the components (b) to (c) and the component (d) are powdered with the component (a). For example, a mixture obtained by stirring and mixing the component (a) and the component (b),
The component (c) or the component (d) dissolved therein is mixed with the component (c); the component (b) is dispersed or dissolved in the component (c), or the component (d) is further added thereto and mixed. (A) component is added and mixed;
Manufacturing methods such as dissolving or dispersing the component (b) in the component (d) dissolved in the component (c), and adding and mixing the component (a) therein, are exemplified. It is not limited.

When an inclusion compound such as cyclodextrin is blended in the cosmetic for the T zone, it is preferable that these components are dissolved in the component (c) before use.

[0062]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples. In addition, all compounding amounts are shown by weight%.

Prior to the examples, test methods and evaluation methods used in the present invention will be described.

[Usability (squeaking feeling) test]
Usability (squeaking feeling) of the comparative example product was determined and evaluated by an actual use test of the panel (50 persons) according to the following criteria. (Judgment criteria) Significant effect: Not squeaky Effective: Slightly squeaked, but no problem in use Slightly effective: Squeaky Ineffective: Severe squealing (Evaluation) ◎: Significant effect, effective, and slightly effective 80% or more of the test subjects ○: 50 to less than 80% of subjects judged to be highly effective, effective, and slightly effective Δ: 30 to less than 50% of subjects judged to be extremely effective, effective, and slightly effective ×: Excellent Less than 30% of subjects judged effective, effective, and somewhat effective

[Drug (Unstable Components in the Presence of Water) Stability Test] The residual amount of the unstable components in the presence of water when stored at 40 ° C. (one month, three months, six months) was determined for each of the products of the examples. , HPLC, and the residual ratio was determined.

[Product Long-Term Storage Stability Test] Each of the products of the Examples was prepared at 0 ° C., room temperature and 40 ° C. under exposure conditions (irradiation with sunlight).
The samples stored for months were evaluated according to the following criteria. (Evaluation) ：: Cosmetic did not change. 粉末: Powder or water droplets slightly adhered to the container. △: Slightly water-separated.

(Example 1, Comparative Example 1) Powder cosmetics having the compositions shown in Table 1 below were prepared. The usability (squeaking feeling) of Example 1 and Comparative Example 1 was evaluated by the above test method. In Table 1, dimethyl silicone oil treated silicic anhydride
^(*) Indicates that “Aerosil RY200S” (manufactured by Nippon Aerosil Co., Ltd .; surface area: 80 m ² / g) is a silicone compound.
^(**) used "Silicone Powder E506-W" (manufactured by Dow Corning Toray Silicone Co., Ltd.). Table 1 shows the results
Shown in

[0068]

[Table 1]

(Preparation method) (1) and (2) were pulverized and mixed (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results in Table 1, Example 1
Powder cosmetic does not show a squeaky feeling as compared with Comparative Example 1,
Very good usability was shown. The powder cosmetic of Example 1 was excellent in sebum suppression / adsorption effects.

(Example 2, Comparative Example 2) Powder cosmetics having the compositions shown in Table 2 below were prepared. The usability (squeaking feeling) of Example 2 and Comparative Example 2 was evaluated by the above test method. In Table 2, trimethylsilyl group-treated silicic anhydride
^(*) Used "Aerosil R812S" (manufactured by Nippon Aerosil Co., Ltd .; surface area 220 m ² / g). Table 2 shows the results.

[0072]

[Table 2]

(Preparation method) (1) to (7) were mixed and dissolved,
(8) was added thereto, mixed, stirred, and filled in a container.

As is clear from the results in Table 2, Example 2
The powdery cosmetic did not show a squeaky feeling as compared with Comparative Example 2, and showed extremely good usability.

<Stability of Drug (Unstable Component in the Presence of Water)>
For the powder cosmetics of the present invention prepared in Examples 1 and 2, the stability of the unstable component in the presence of water was evaluated by the above-described drug (unstable component in the presence of water) stability test method. Table 3 shows the results.

[0076]

[Table 3]

As is clear from Table 3, in the powder cosmetics of Examples 1 and 2, almost no unstable active ingredient remained even after 6 months at 40 ° C., which was a problem in drug stability over time. There was nothing.

<Long-term Storage Stability of Product> The long-term storage stability of the product of the powder cosmetics of the present invention prepared in Examples 1 and 2 was evaluated by the above-mentioned long-term storage stability test method. Table 4 shows the results.

[0079]

[Table 4]

As is clear from Table 4, in the powder cosmetics of Examples 1 and 2, the morphology of the preparation hardly changed after 6 months under each storage condition, and there was a problem in the storage stability of the product over time. There was nothing.

(Example 3, Comparative Example 3) Powder cosmetics having the compositions shown in Table 5 below were prepared. The usability (squeaking feeling) of Example 3 and Comparative Example 3 was evaluated by the above test method. In Table 3, silicic anhydride treated with dimethyl silicone oil
^{(*) Indicates} that “Aerosil R202” (manufactured by Nippon Aerosil Co., Ltd .; surface area 100 m ² / g) is a cellulose-based polymer.
^(**) used "Celluloflow C25" (manufactured by Chisso Corporation). Table 5 shows the results.

[0082]

[Table 5]

(Production method) (3) to (9) were mixed and dissolved. After dispersing (2) in this, (1) was mixed, stirred and filled in a container.

As is clear from the results in Table 5, Example 3
No powder cosmetics showed a squeaky feeling as compared with Comparative Example 3 and showed extremely good usability.

(Example 4, Comparative Example 4) Powder cosmetics having the compositions shown in Table 6 below were prepared. The usability (squeaking feeling) of Example 4 and Comparative Example 4 was evaluated by the above test method. In Table 6, dimethyl silicone oil treated silicic anhydride
^(*) Is, "Aerosil RY200"; (manufactured by Nippon Aerosil Co., Ltd. surface area of 100m ² / g), silicic acid anhydride ^(**) was using the "Sildex L-51" (manufactured by Asahi Glass Co., Ltd.). Table 6 shows the results.

[0086]

[Table 6]

(Production method) (1) and (2) were pulverized and mixed (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results in Table 6, Example 4
Powder cosmetic does not show a squeaky feeling as compared with Comparative Example 4,
Very good usability was shown. The powder cosmetic of Example 4 was excellent in sebum suppression / adsorption effects.

(Examples 5 to 10) Powder cosmetics having the compositions shown in Table 7 below were prepared. According to the above test method, Example 5
The usability (squeaking feeling) of Nos. To 10 was evaluated. Table 7
Medium, silicic acid anhydride treated with dimethyl silicone oil ^(*) is “Aerosil RY200S” (manufactured by Nippon Aerosil Co., Ltd .; surface area: 80 m ² / g), and silicic anhydride ^(**) is “Sildex L-51” (manufactured by Asahi Glass Co., Ltd.). ) Was used. Table 7 shows the results.

[0090]

[Table 7]

(Preparation method) (1) and (2) were pulverized and mixed (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results in Table 7, Example 5
The powder cosmetics of No. 10 to No. 10 did not show squeaky feeling and showed extremely good usability. All of the powder cosmetics of Examples 5 to 10 were excellent in sebum suppression / adsorption effects.

Examples 11 to 16 Powder cosmetics having the compositions shown in Table 8 below were prepared. The usability (squeaking feeling) of Examples 11 to 16 was evaluated by the above test method. In Table 8, silicic acid anhydride ^(*) treated with dimethyl silicone oil is "Aerosil R202" (manufactured by Nippon Aerosil Co., Ltd .; surface area 100 m ² / g), and silicone compound ^(**) is "Silicone Powder E506-W". (Manufactured by Dow Corning Toray Silicone Co., Ltd.). Table 8 shows the results.

[0094]

[Table 8]

(Production method) (1) and (2) were pulverized and mixed (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, phase A and phase B were mixed, stirred, and filled in a container.

As apparent from the results in Table 8, Example 1
The powder cosmetics Nos. 1 to 16 did not show a squeaky feeling and showed extremely good usability. The powder cosmetics of Examples 14 to 16 were particularly excellent in sebum suppression / adsorption effects.

The powder cosmetics of Examples 1 to 16 all obtained good pulverization, had good liquefaction during rubbing, and had fresh usability.

Further, the powder cosmetics of Examples 3 to 16 were excellent in drug stability and long-term storage stability of the product, as in Examples 1 and 2.

(Example 17, Comparative Example 5) Powder cosmetics having the composition shown in Table 9 below and containing a silicone compound which is an oil-absorbing component were produced. By the above test method, the usability (squeaking feeling) of Example 17 was evaluated using Comparative Example 5 as a control. Table 9 shows the results.

Further, the sebum suppression / adsorption test of Example 17 was carried out using Comparative Example 5 as a control by the following sebum suppression / adsorption test method.
The adsorption effect was evaluated. The results are shown in FIG.

In Table 9, silicic acid anhydride ^(*) treated with dimethyl silicone oil is “Aerosil RY200S”.
(Manufactured by Nippon Aerosil Co., Ltd .; surface area: 80 m ² / g), and the silicone compound ^(**) was “silicone powder E506-
W "(manufactured by Dow Corning Toray Silicone Co., Ltd.).

[Sebum Suppression / Adsorption Test] Panels (5 persons) were allowed to enter a constant temperature and humidity chamber, and after 30 minutes, the amount of sebum on the forehead was measured using a sea bar meter (Courage and Khazaka electronic). Usually, the amount of sebum was used. Next, 10 minutes after the forehead of each panel was washed with soap, 0.2 g of each of the example product and the comparative example product having the formulation shown in Table 9 below was applied to half the price. Further, the sebum amount after application of the sample with time was measured with a sea bar meter to obtain the sebum amount with time, and the sebum suppression / adsorption rate was calculated by the formula shown in Formula 1 below.
Was evaluated for its sebum suppression / adsorption effect (FIG. 1).

[0103]

(Equation 1)

[0104]

[Table 9]

(Preparation method) (1) and (2) were pulverized and uniformly mixed (phase A). (3) to (9) were mixed and dissolved (phase B). Next, phase A and phase B were mixed, stirred, and filled in a container.

As apparent from the results in Table 9, Example 1
The powder cosmetic of No. 7 did not show a squeaky feeling as compared with Comparative Example 5, and showed extremely good usability. Further, from the results of the sebum suppression / adsorption test shown in FIG.
It can be seen that shows excellent sebum suppression / adsorption effect.

(Example 18, Comparative Examples 6 and 7) Table 10 below
A powder cosmetic was produced with the composition shown in Table 1. According to the test method described above, the usability (squeaking feeling) of Example 18 was evaluated using Comparative Examples 6 and 7 as controls. The powder dispersibility was evaluated by the following evaluation method. In Table 10, the silicic acid anhydride ^(*) treated with dimethyl silicone oil is referred to as “Aerosil R2
02 "(manufactured by Nippon Aerosil Co., Ltd .; surface area: 100 m ² / g)
And the silicone compound ^(**) is "Silicone Powder E
506-W "(manufactured by Dow Corning Toray Silicone Co., Ltd.). Table 10 shows the results.

[Powder dispersibility test] A constant weight was taken from each of the upper layer, middle layer and lower layer of each of the examples and comparative examples, and the heater temperature was measured using an electronic moisture meter (EB-340MOC, manufactured by Shimadzu Corporation). After heating at 300 ° C. for 20 minutes, the loss on drying (residue on ignition) (%) was measured. Next, the powder dispersibility ratio (%) was calculated from the mixing ratio (%) of the evaporated components in each formulation by the formula shown in the following Expression 2, and the powder dispersibility was evaluated according to the following criteria.

[0109]

(Equation 2)

(Evaluation) ：: The powder dispersibility ratio of all the upper, middle and lower layers was ±
Within 1% ：: The powder dispersibility ratio exceeds ± 1% in one of the upper, middle and lower layers △: The powder dispersibility ratio exceeds ± 1% in two of the upper, middle and lower layers × : Powder dispersibility ratio is ± 1 for all upper, middle and lower layers
More than%

[0111]

[Table 10]

(Preparation method) (1) to (3) were mixed and pulverized (phase A). (4) to (10) were mixed and dissolved (B
phase). Next, the phase A and the phase B were mixed and stirred and filled in a container.

As is clear from the results shown in Table 10, the powder cosmetic of Example 18 did not show a squeaky feeling as compared with Comparative Examples 6 and 7, showed extremely good usability, and exhibited excellent powder dispersibility. showed that. The powder cosmetic of Example 18 was excellent in sebum suppression / adsorption effects.

(Example 19, Comparative Examples 8 to 9) Table 11 below
A powder cosmetic was produced with the composition shown in Table 1. According to the test methods described above, the usability (squeaking feeling) and powder dispersibility of Example 19 were evaluated using Comparative Examples 8 and 9 as controls. In Table 11, trimethylsilyl group-treated silicic anhydride ^(*) is “Aerosil R812” (manufactured by Nippon Aerosil Co., Ltd .; surface area 100 m ² /
g), and silicic anhydride ^(**) is "Sildex L-51"
(Made by Asahi Glass Co., Ltd.). Table 11 shows the results.

[0115]

[Table 11]

(Production method) (1) to (3) were pulverized and uniformly mixed (phase A). (4) to (9) were mixed and dissolved (B
phase). Next, the phase A and the phase B were mixed and stirred and filled in a container.

As is clear from the results shown in Table 11, the powder cosmetic of Example 19 did not show a squeaky feeling as compared with Comparative Examples 8 and 9, showed extremely good usability, and exhibited excellent powder dispersibility. showed that. Moreover, the powder cosmetic of Example 19 was excellent in the sebum suppression / adsorption effect.

(Example 20, Comparative Examples 10 to 11) Powder cosmetics having the compositions shown in Table 12 below were produced. According to the test methods described above, the usability (squeaking feeling) and powder dispersibility of Example 20 were evaluated using Comparative Examples 10 and 11 as controls. Table 1
2, dimethylsilicone oil treated silicic anhydride
^(*) Used "Aerosil R202" (manufactured by Nippon Aerosil Co., Ltd .; surface area 100 m ² / g). Table 12 shows the results.

[0119]

[Table 12]

(Production method) (1) and (2) were mixed and pulverized (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, the phase A and the phase B were mixed and stirred and filled in a container.

As is clear from the results shown in Table 12, the powder cosmetic of Example 20 did not show a squeaky feeling as compared with Comparative Examples 10 and 11, showed extremely good usability, and exhibited excellent powder dispersibility. showed that.

Example 21, Comparative Example 12 Powder cosmetics having the composition shown in Table 13 below and containing zinc white, which is an oil-absorbing component, were produced. According to the test method described above, the usability (squeaking feeling) of Example 21 was evaluated using Comparative Example 12 as a control. Table 13 shows the results.

In Table 13, silicic anhydride ^(*) treated with dimethyl silicone oil is "Aerosil R202" (manufactured by Nippon Aerosil Co .; surface area 100 m ² / g), and silicic anhydride ^{(** )} is "Sildex L". -51 "(manufactured by Asahi Glass Co., Ltd.).

[0124]

[Table 13]

(Production method) (1) to (3) were pulverized and uniformly mixed (phase A). (4) to (10) were mixed and dissolved (phase B). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results shown in Table 13, the powder cosmetic of Example 21 did not show a squeaky feeling as compared with Comparative Example 12, and showed extremely good usability. Example 2
The powder cosmetic of No. 1 was excellent in sebum suppression / adsorption effect.

Example 22, Comparative Example 13 Powder cosmetics having the composition shown in Table 14 below and containing magnesium metasilicate aluminate, which is an oil-absorbing component, were produced.
According to the test method described above, Example 2 was used with Comparative Example 13 as a control.
The usability (squeaking feeling) of Sample No. 2 was evaluated. Table 14 shows the results.

In Table 14, the silicic acid anhydride ^(*) treated with a trimethylsilyl group was obtained by converting “Aerosil R812S” (manufactured by Nippon Aerosil Co .; surface area 220 m ² / g) with silicic anhydride.
^(**) used "Sildex L-51" (made by Asahi Glass Co., Ltd.).

[0129]

[Table 14]

(Production method) (1) to (3) were pulverized and uniformly mixed (phase A). (4) to (10) were mixed and dissolved (phase B). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results shown in Table 14, the powder cosmetic of Example 22 did not show a squeaky feeling as compared with Comparative Example 13, and showed extremely good usability. Example 2
The powder cosmetic of No. 2 was excellent in sebum suppression / adsorption effect.

(Example 23, Comparative Example 14) Powder cosmetics having compositions shown in Table 15 below and containing calcium alginate which is an oil-absorbing component were produced. By the above test method, the usability (squeaking feeling) of Example 23 was evaluated using Comparative Example 14 as a control. Table 15 shows the results.

In Table 15, silicic acid anhydride ^(*) treated with dimethyl silicone oil is “Aerosil RY200” (manufactured by Nippon Aerosil Co., Ltd .; surface area 100 m ² / g), and silicic anhydride ^{( **)} is “Sildex L”. -51 "(manufactured by Asahi Glass Co., Ltd.).

[0134]

[Table 15]

(Production method) (1) to (3) were pulverized and uniformly mixed (phase A). (4) to (10) were mixed and dissolved (phase B). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results in Table 15, the powder cosmetic of Example 23 did not show a squeaky feeling as compared with Comparative Example 14, and showed extremely good usability. Example 2
The powder cosmetic of No. 3 was excellent in sebum suppression / adsorption effect.

(Example 24, Comparative Example 15) Powder cosmetics having the composition shown in Table 16 below and containing hydroxypropyl-β-cyclodextrin as a component for enclosing an oil component were produced. According to the test method described above, the usability (squeaking feeling) of Example 24 was evaluated using Comparative Example 15 as a control. Table 16 shows the results.

In Table 16, the silicic acid anhydride ^(*) treated with a trimethylsilyl group was obtained by converting “Aerosil RX200” (manufactured by Nippon Aerosil Co., Ltd .; surface area 140 m ² / g) with silicic anhydride.
^(**) used "Sildex L-51" (made by Asahi Glass Co., Ltd.).

[0139]

[Table 16]

(Production method) (1) to (3) were pulverized and uniformly mixed (phase A). (4) to (10) were mixed and dissolved (phase B). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results shown in Table 16, the powder cosmetic of Example 24 did not show a squeaky feeling as compared with Comparative Example 15, and showed extremely good usability. Example 2
The powder cosmetic of No. 4 was excellent in sebum suppression / adsorption effect.

Example 25, Comparative Example 16 Powder cosmetics having the composition shown in Table 17 below and containing thiotaurine as an antioxidant component were produced. By the above test method, the usability (squeaking feeling) of Example 25 was evaluated using Comparative Example 16 as a control. Table 17 shows the results.

In Table 17, silicic acid anhydride ^(*) treated with trimethylsilyl group is "Aerosil RY200S" (manufactured by Nippon Aerosil Co., Ltd .; surface area: 80 m ² / g), and silicone compound ^(**) is "Silicone Powder E506- W "(manufactured by Dow Corning Toray Silicone Co., Ltd.).

[0144]

[Table 17]

(Production method) (1) and (2) were pulverized and uniformly mixed (phase A). (3) to (9) were mixed and dissolved (B
phase). Next, phase A and phase B were mixed, stirred, and filled in a container.

As is clear from the results shown in Table 17, the powder cosmetic of Example 25 did not show a squeaky feeling as compared with Comparative Example 16, and showed extremely good usability. Example 2
The powder cosmetic of No. 5 was excellent in sebum suppression / adsorption effect.

Example 26, Comparative Example 17 Powder cosmetics having the composition shown in Table 18 below and containing a plant extract, Izayoibara extract, were produced. According to the test method described above, the usability (creakiness) of Example 26 was compared with Comparative Example 17 as a control.
Was evaluated. The results are shown in Table 18.

In Table 18, “Aerosil R202” (manufactured by Nippon Aerosil Co., Ltd .; surface area: 100 m ² / g) was used as the silicic acid anhydride treated with dimethyl silicone oil ^(*) .

[0149]

[Table 18]

(Production method) (2) to (10) were mixed and dissolved, (1) was added thereto, mixed, stirred and filled in a container.

As is clear from the results in Table 18, the powder cosmetic of Example 26 did not show a squeaky feeling as compared with Comparative Example 17, and showed extremely good usability.

[0152]

The powder cosmetic of the present invention, while being a powder, is liquefied by rubbing at the time of use, gives a refreshing feeling and moist feeling during use, and is excellent in affinity for skin, emollient, moisture, etc. And a very good feeling of use and finish without any squeaky feeling can be obtained. In addition, the product has excellent long-term storage stability. Furthermore, since the unstable component in the presence of water, which has conventionally been considered difficult to be incorporated into cosmetics, can be stably maintained in the composition for a long period of time, it can be widely used as a new type of cosmetic. In addition, conventionally, from the viewpoint of dispersibility, it has been considered difficult to mix a lotion, a cosmetic liquid with an aqueous cosmetic, and it is possible to uniformly disperse a hydrophobic powder as a cosmetic component such as a lame agent or a pearl agent. From this point, it can be applied to a wide range of uses as cosmetics.

[0153]

[Brief description of the drawings]

FIG. 1 is a graph showing sebum suppression / adsorption curves of Example 17 and Comparative Example 5.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Nobuyoshi Koga 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Shiseido Daiichi Research Center Co., Ltd. (72) Emiko Takasu 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Inside Shiseido Daiichi Research Center Co., Ltd. (72) Inventor Seiji Nishiyama 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside 72 Shiseido Daiichi Research Center Co., Ltd. 1050 Inside Shiseido Daiichi Research Center Co., Ltd.

Claims (10)

[Claims] (1) a hydrophobic silicic anhydride having a surface area of 60 m ² / g or more, (b) a (b-1) silicone compound,
(B-2) silicic anhydride, (b-3) polysaccharide polymer,
(B-4) A powder cosmetic which is liquefied by rubbing, comprising one or more selected from cellulosic polymers and (c) water. 2. The powder cosmetic according to claim 1, which contains the component (a) in an amount of 0.1 to 20% by weight. 3. The powder cosmetic according to claim 1, wherein component (b) is contained in an amount of 0.001 to 20% by weight. 4. The powder cosmetic according to claim 1, further comprising (d) an unstable component in the presence of water. 5. The component (d) is one or two selected from whitening agents, anti-inflammatory agents, antibacterial agents, hormonal agents, vitamins, enzymes, inclusion compounds, antioxidants, and plant extracts. The powder cosmetic according to claim 4, which is the above. 6. The component (d) is a hydroquinone derivative,
Kojic acid, L- ascorbic acid and its derivatives, pantothenyl ethyl ether, tranexamic acid and its derivatives, glycyrrhizin salts, resorcinol, sulfur, salicylic acid, vitamin of B ₆ and derivatives thereof, nicotinic acid and its derivatives, trypsin, hyaluronidase, cyclo The powder cosmetic according to claim 4, wherein the cosmetic is at least one selected from dextrin and a derivative thereof, thiotaurine, glutathione, tea extract, and Izayobara extract. 7. The powder cosmetic according to any one of claims 4 to 6, which contains the component (d) in an amount of 0.001 to 10% by weight. 8. The powder cosmetic according to any one of claims 1 to 7, further comprising one or more selected from a lame agent and a pearl agent. 9. The powder cosmetic according to any one of claims 1 to 8, wherein (b-1) is used as the component (b).
A powdery T-zone cosmetic which is liquefied by rubbing, using one or more selected from a silicone compound and (b-2) silicic anhydride. 10. The powder cosmetic according to claim 4, wherein the component (d) is one selected from vitamin B ₆ and its derivatives, cyclodextrin and its derivatives. Alternatively, a powder cosmetic for T-zone which is liquefied by rubbing and contains two or more kinds.