JP3167423B2 - Water repellent / oil repellent cosmetic powder and cosmetic containing the powder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention has excellent water and oil repellency,
The present invention relates to a water-repellent and oil-repellent cosmetic powder which does not lose makeup, has good elongation on the skin, and has a good feel upon use, and a cosmetic containing the powder. More specifically, the present invention relates to a water-repellent and oil-repellent cosmetic powder obtained by subjecting a polyvalent metal salt of amide sulfonic acid to a surface treatment with a fluorine compound, and to a cosmetic containing the powder.

[0002]

2. Description of the Related Art Cosmetics containing cosmetic powders include makeup cosmetics such as foundations, white powders, blushers, eye shadows, eye blows, etc., and body powders such as body powders and baby powders. Cosmetics and the like are commercially available. In cosmetics containing these cosmetic powders, there is a problem in terms of elongation on the skin, smoothness, and makeup performance, such as makeup loss due to sebum.

In recent years, it has been proposed to treat powder with a fluorine compound to impart water / oil repellency to the powder in order to prevent the cosmetics from breaking down due to sebum (Japanese Patent Application Laid-Open No. H11-163873). JP-A-55-167209, JP-A-62-275074
And JP-A-1-180811 and U.S. Pat. No. 3,632,744. However, these water-repellent and oil-repellent powders have a drawback that the smoothness is extremely poor as compared with that before the treatment with the fluorine compound in terms of feeling in use.

On the other hand, it has been proposed to incorporate a polyvalent metal salt of amide sulfonic acid for the purpose of improving smoothness (see JP-A-3-294210).
When a polyvalent metal salt of amide sulfonic acid is used in combination with the oil-repellent powder, there is a problem that the effect of preventing makeup collapse due to sebum is reduced. Accordingly, an object of the present invention is to provide a water-repellent / oil-repellent material having excellent water / oil repellency and excellent feeling in use, particularly excellent smoothness.
Oil-repellent cosmetic powder, and containing the powder, have excellent water resistance, sebum resistance and oil resistance, have an excellent effect of preventing makeup collapse due to sebum (make-up), and have good elongation on the skin. It is an object of the present invention to provide a cosmetic which is excellent in use feeling, particularly excellent in smoothness.

[0005]

Means for Solving the Problems The inventors of the present invention have made intensive studies to achieve the above object, and as a result, have obtained a surface treatment of a pigment composed of a polyvalent metal salt of amide sulfonic acid with a fluorine compound. It has been found that the powder and the cosmetic containing the treated powder have excellent smoothness and excellent water and oil repellency. The present invention has been made on the basis of the above findings, and provides a powder comprising a polyvalent metal salt of amide sulfonic acid represented by the following general formula (I) of the following [formula 2] (same as [formula 1]). An object of the present invention is to provide a water-repellent and oil-repellent cosmetic powder which is surface-treated with a phosphoric ester having a perfluoroalkyl group represented by the following general formula (III).

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[0006]

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[0007] The present invention also provides a cosmetic containing the above-mentioned water- and oil-repellent cosmetic powder of the present invention.

First, the water / oil repellent cosmetic powder of the present invention will be described in detail. In the above general formula (I) representing the polyvalent metal salt of amide sulfonic acid constituting the cosmetic powder of the present invention,
Examples of the alkyl group represented by R ¹ include a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group,
Hexadecyl group, heptadecyl group, octadecyl group, nonadecyl group, eicosyl group, henicosyl group, and the like. Examples of the alkenyl group represented by R ¹ include a 2-heptenyl group, a 2-octene-8-ynyl group, and a 3,4- Dipropyl-1,3-hexadiene-5-ynyl group, 5,5-
Dimethyl-1-hexyl group, 4-vinyl-1-heptene-5-ynyl group, 5- (3-pentenyl) -3,6,8
-Decatriene-1-ynyl group, 6- (1,3-pentadienyl) -2,4,7-dodecatrien-9-ynyl group, 2-nonyl-2-butenyl group, and the like.
Examples of the hydroxyalkyl group represented by R ¹ include a hydroxyheptyl group, a hydroxydecyl group, a hydroxytetradecyl group, a hydroxynonadecyl group, and the like.
The polyvalent metal atom represented by M includes Al, C
a, Zn, Zr, Mg, Fe, Ti and the like.

Accordingly, the polyvalent metal salts of amide sulfonic acids represented by the above general formula (I) include, for example, N-lauroyltaurine Ca salt, N-lauroyltaurine Zn salt,
N-lauroyl taurine Ba salt, N-palmitoyl taurine Ca salt, N-palmitoyl taurine Zn salt, N-palmitoyl taurine Ba salt, N-tetradecanoyl taurine Ca salt, N-tetradecanoyl taurine Zn salt, N
-Tetradecanoyltaurine Ba salt and the like.

The polyvalent metal salt of amide sulfonic acid represented by the general formula (I) is used as a pigment component of cosmetics, and therefore must be water-insoluble or hardly soluble.

The amidosulfonic acid polyvalent metal salt (powder) represented by the above general formula (I) can be produced, for example, in the same manner as in a conventional method for synthesizing a metal soap. That is, a soluble metal salt of an amide sulfonic acid represented by the following general formula (II) is dissolved in water, and an aqueous solution of a water-soluble polyvalent metal salt is added thereto in substantially equal amounts. After salt exchange, the mixture can be sufficiently stirred, filtered, washed with water, and then dried. Examples of the water-soluble polyvalent metal salt include aluminum sulfate, aluminum chloride, aluminum nitrate, aluminum potassium sulfate, magnesium chloride, magnesium sulfate, magnesium nitrate, magnesium potassium sulfate, calcium chloride, zinc chloride, zinc nitrate, zinc sulfate, Examples include zinc acetate, zirconium sulfate, zirconium chloride, titanium oxysulfate, titanium tetrachloride and the like.

[0012]

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The polyvalent metal salt of amide sulfonic acid represented by the above general formula (I) can be produced by the method described in JP-A-3-294210 and the like. And a precipitate precipitated by a reaction with a water-soluble polyvalent metal salt, formed into a powder by a method such as washing, filtration, and drying, and subjected to a surface treatment with a fluorine compound as described below, whereby the repellent of the present invention is obtained. It is a water- and oil-repellent cosmetic powder, and this cosmetic powder is mainly used as a pigment component of cosmetics. The particle size is not particularly limited, but is preferably in the range of 0.1 to 50 μm (average particle size). If the average particle size is less than 0.1 μm, the resulting water- and oil-repellent cosmetic powder may be impaired in smoothness, and if it exceeds 50 μm, roughness may be felt.

[0014]

[0015]

The cosmetic powder of the present invention has a perfluoroalkyl group represented by the above general formula (III).
Examples of the phosphoric acid ester (hereinafter referred to as a fluorine compound) include, for example, diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ PO (OH)], heptadecafluoro Decyl phosphate [C ₈ F ₁₇ C ₂ H ₄ OP
O (OH) ₂ ], sesquide of diheptadecafluorodecyl phosphate and heptadecafluorodecyl phosphate [(C ₈ F
₁₇ C ₂ H ₄ O) _p PO (OH) _{3 -p} , 2>p> 1], and in the above general formula (III) , Rf is a perfluoroalkyl group having 6 to 18 carbon atoms (average 9); approximately 1.5, and M is hydrogen phosphoric acid esters and perfluoroalkyl dioxy ethyl amine phosphates ester [(C _m F
_{2m + 1} C ₂ H ₄ O) _q PO (ONH ₂ (CH ₂ CH ₂ OH) ₂ ) _3-q , m = 6-18
(Average 9), 2>q> 1, see JP-A-62-275074].

The water- and oil-repellent cosmetic powder of the present invention is obtained by treating a polyvalent metal salt of amidosulfonic acid (powder) represented by the above general formula (I) with the above fluorine compound. The treatment method is not particularly limited, but generally, a method in which a solution in which a fluorine compound is dissolved and the powder are mixed and filtration or removal of the solvent is preferably performed.

The amount of the fluorine compound to be treated with respect to the amidosulfonic acid polyvalent metal salt (powder) represented by the general formula (I) is 100 parts by weight of the amidosulfonic acid polyvalent metal salt (powder). Preferably it is 0.01 to 30 parts by weight, more preferably 0.5 to 15 parts by weight. When the processing amount is 0.
If it is less than 01 parts by weight, it is difficult to obtain sufficient water resistance and oil resistance, and if it is more than 30 parts by weight, the feeling of use tends to be poor.

Next, the cosmetic of the present invention will be described in detail.
The cosmetic of the present invention contains the above-mentioned cosmetic powder of the present invention, and the content thereof can be appropriately determined depending on the type of the target cosmetic. , Preferably 0.1 to 99% by weight, more preferably 1 to 50% by weight.

As the components other than the above-mentioned cosmetic powder of the cosmetic of the present invention, components appropriately selected from components to be added to ordinary cosmetics can be blended according to the kind of the desired cosmetic. For example, solid / semi-solid oils such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids, higher alcohols, etc .; Fluorinated oils such as perfluoropolyether, perfluorodecalin and perfluorooctane; water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, inorganic and organic pigments treated with silicon or fluorine compounds, organic dyes, etc. Colorants, ethanol, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, UV absorbers,
Examples include a humectant, a blood circulation promoter, a cooling agent, an antiperspirant, a bactericide, a skin activator, and the like, and can be blended within a qualitative and quantitative range that does not impair the object and effects of the present invention.

The cosmetic of the present invention can be produced according to a usual method, and can be applied to makeup cosmetics such as foundation, eyeshadow, blush, and basic cosmetics such as milky lotions and creams.

[0022]

The cosmetic powder of the present invention is incorporated into cosmetics, prevents makeup collapse due to sebum and the like, improves the elongation of the cosmetic on the skin, and gives the skin a good feel.

[0023]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.

Example 1 50 g of Na salt of N-lauroyl taurine and 423 g of ion-exchanged water were placed in a four-necked flask and stirred at 40 ° C.
Heated. While maintaining the solution at 40 ° C., 337.5 g of a 5% calcium chloride aqueous solution was added dropwise from a dropping funnel over 15 minutes. N-lauroyl taurine Ca simultaneously with the dropping
Salt crystals were precipitated. After completion of the dropwise addition, the mixture was allowed to cool to room temperature, filtered, washed, and dried at room temperature to obtain 50 g of N-lauroyltaurine Ca salt white crystals. 50 g of the obtained powder of N-lauroyl taurine Ca salt was put into a round bottom flask (or kneader), and C ₈ F ₁₇ CH was added thereto.
₂ CH ₂ P (O) (OH) ₂ and (C ₈ F ₁₇ CH ₂ CH ₂ ) ₂ P
2.42 g of a nearly 1: 1 mixture with (O) OH was dissolved in 500 g of isopropyl alcohol by heating (50 ° C.), and the mixture was mixed at 60 ° C. for 4 hours. Then 4
At 0 to 50 ° C., isopropyl alcohol is distilled off under reduced pressure.
After drying, 51 g of the desired water- and oil-repellent powder of the present invention (Powder 1 of the present invention) was obtained.

EXAMPLE 2 50 g of Na salt of N-lauroyl taurine and ion-exchanged water
410 g is placed in a four-necked flask and stirred at 40 ° C.
Heated. From the dropping funnel while keeping the solution at 40 ° C
360 g of a 5% aqueous zinc chloride solution was added dropwise over 15 minutes.
Was. Crystal of Zn salt of N-lauroyl taurine at the same time as dropping
Has been deposited. After dropping, allow to cool to room temperature and filter.
After washing, washing and drying at room temperature, N-lauroyl
50 g of white crystals of Zn salt of urine were obtained. The obtained N-la
50 g of uroyl taurine Zn salt powder in a round bottom flask
(Or kneader) and add [C_mF_{2m + 1}C_TwoH
_FourO) _pPO (OH)_3-p(M = 6 to 18, m = 9, 2
> P> 1) 2.42 g of isopropyl alcohol 500
g, heat-dissolve (50 ° C)
For 4 hours. Then, at 40-50 ° C, isopro
The pill alcohol is distilled off under reduced pressure, dried and dried.
51 g of water / oil repellent powder (Powder 2 of the present invention) was obtained.

Example 3 50 g of N-lauroyl taurine Na salt and 423 g of ion-exchanged water were placed in a four-necked flask, and stirred at 40 ° C.
Heated. While maintaining the solution at 40 ° C., 337.5 g of a 5% calcium chloride aqueous solution was added dropwise from a dropping funnel over 15 minutes. N-lauroyl taurine Ca simultaneously with the dropping
Salt crystals were precipitated. After completion of the dropwise addition, the mixture was allowed to cool to room temperature, filtered, washed, and dried at room temperature to obtain 50 g of N-lauroyltaurine Ca salt white crystals. 50 g of the obtained N-lauroyl taurine Ca salt powder was placed in a round bottom flask (or kneader), and a perfluoroalkyl phosphate diethanolamine salt [AG5
30, manufactured by Asahi Glass Co., Ltd.]
The solution dissolved in 00 g was added and mixed at 60 ° C. for 4 hours. Next, hydrochloric acid was added, followed by filtration and washing with water several times. This was dried to obtain 51 g of the desired water- and oil-repellent powder of the present invention (Powder 3 of the present invention).

Comparative Example 1 50 g of Na salt of N-lauroyl taurine and 423 g of ion-exchanged water were placed in a four-necked flask and stirred at 40 ° C.
Heated. While maintaining the solution at 40 ° C., 337.5 g of a 5% calcium chloride aqueous solution was added dropwise from a dropping funnel over 15 minutes. N-lauroyl taurine Ca simultaneously with the dropping
Salt crystals were precipitated. After completion of the dropwise addition, the mixture was allowed to cool to room temperature, filtered, washed, and dried at room temperature to obtain N-lauroyltaurine Ca salt white crystalline powder (Comparative Powder 1)
50 g were obtained.

Comparative Example 2 50 g of Na salt of N-lauroyltaurine and 410 g of ion-exchanged water were placed in a four-necked flask and stirred at 40 ° C.
Heated. While maintaining the solution at 40 ° C., 360 g of a 5% aqueous zinc chloride solution was dropped from the dropping funnel over 15 minutes. At the same time as the dropwise addition, crystals of Zn salt of N-lauroyl taurine were precipitated. After completion of the dropwise addition, the mixture was allowed to cool to room temperature, filtered, washed, and dried at room temperature to obtain 50 g of powdery white crystals of N-lauroyltaurine Zn salt (Comparative Powder 2).

Comparative Example 3 50 g of sericite was placed in a round bottom flask (or kneader).
I put it. This is C₈F ₁₇CH_TwoCH_TwoP (O) (OH)_TwoWhen
(C₈F₁₇CH_TwoCH_Two)_TwoAlmost 1: 1 with P (O) OH
2.42 g of isopropyl alcohol 500 g
And heat-dissolved (50 ° C)
Mix for 4 hours. Then, at 40-50 ° C
Alcohol is distilled off under reduced pressure, dried and treated with fluorine compound
51 g of powder (comparative powder 3) was obtained.

Test Example 1 Water repellency, oil repellency and use of the powders obtained in Examples 1 and 3 and Comparative Examples 1 and 3 (inventive powders 1 and 3 and comparative powders 1 and 3). The feeling was evaluated by the following evaluation method. The results are shown in Table 1 below.

(Method of evaluating water repellency) About 0.05 g of each powder
Was placed in a 30 ml beaker and floated, and the beaker was shaken to observe the dispersibility of the powder in water and squalane. The evaluation was based on the following criteria. 0: The powder was dispersed in water and squalane. 1: When the beaker was shaken, the powder was almost dispersed within 30 seconds. 2: When the beaker was shaken, the water became white and turbid after 1 minute, but powder floating in the water was also observed. 3: After one minute when the beaker was shaken, the water became cloudy white after one minute, but there were many powders floating in the water. 4: One minute after the beaker was shaken, the water was not white and cloudy, and no powder dispersed in the water was observed. Even when the beaker was shaken for 5: 1 or more, no powder dispersed in water and squalane was observed.

(Evaluation Method of Oil Repellency) Evaluation was made in the same manner as in the evaluation method of water repellency except that squalane was placed in a 30 ml beaker instead of water.

(Evaluation Method of Feeling in Use) Five expert panelists evaluated the feeling of the powder in five steps of 1 to 5 shown below based on the smoothness, squeaking, and roughness of the powder. Indicated by value. 1: The feeling such as smoothness is poor. 2: The touch such as smoothness is slightly poor. 3: Normal. 4: Feeling such as smoothness is slightly good. 5: Good feeling such as smoothness.

[0034]

[Table 1]

From the results shown in Table 1 above, the water-repellent and oil-repellent cosmetic powders of the present invention (the powders 1 and 3 of the present invention) have N
-It can be seen that the water repellency, the oil repellency and the use feeling are superior to lauroyl taurine metal salt alone (Comparative Powder 1) or when sericite is treated with a fluorine compound (Comparative Powder 3).

Example 4 Powder Foundation Pressed powder foundations (Product 1, Comparative Product 1 and Comparative Product 2) having the composition shown in Table 2 below were produced according to the following (production method) to remove sweat and The makeup lasting for sebum and the feeling of use were evaluated by the following (evaluation method).
The results are shown in Table 3 below.

(Preparation method) The powder components were mixed and pulverized, transferred to a Henschel mixer, and an oil agent and a fragrance were added and mixed so as to be uniform. This was press-molded on a metal plate to obtain a product.

[0038]

[Table 2]

(Evaluation Method) Sensory evaluation was carried out by 10 expert panelists on the cosmetic durability and feel of use of the above products, and the results were shown by the following criteria. ：: Eight or more were evaluated as good. Δ: 4 to 7 persons are evaluated as good. X: It was evaluated that less than 4 people were good.

[0040]

[Table 3]

As is evident from Table 3 above, the product 1 of the present invention was a pressed face powder which was more excellent in cosmetic durability and use feeling than the comparative products 1 and 2.

Example 5: Loose type face powder The following (composition) loose type face powder (product 2 of the present invention) was produced according to the following (production method). (Preparation method) The powder components were mixed and pulverized, transferred to a Henschel mixer, and an oil agent and a fragrance were added and mixed so as to be uniform. This was press-molded on a metal plate to obtain a product. (Composition) (% by weight) (1) Powder of the present invention 2 50 (2) Fluorine compound-treated powder (pigment) [The following pigments (talc, titanium oxide and red iron oxide) were each treated according to Example 1) Talc Remaining amount ・ Titanium oxide 0.5 ・ Bengara 0.1 (5) Liquid paraffin 1 (6) Fragrance 0.1 ────────────────────────合計 Total 100

Example 6: Oily foundation The following (composition) oily foundation (Product 3 of the present invention)
Was produced according to the following (production method). (Preparation method) The powder components were mixed and pulverized, and these were separately heated and added to the dissolved oil phase components with stirring, and mixed so as to be uniform. This was filled in a metal dish and cooled to obtain a product. (Composition) (% by weight) (1) Powder of the present invention 2 20 (2) Fluorine compound-treated powder (pigment) [The following pigments (talc, kaolin, titanium oxide, red iron oxide, black iron oxide and yellow iron oxide) Each treated according to Example 1] ・ Remaining talc ・ Kaolin 5 ・ Titanium oxide 5 ・ Bengara 1 ・ Black iron oxide 0.1 ・ Yellow iron oxide 0.6 (3) Squalane 25 (4) Isopropyl palmitate 15 (5) Ceresin 7 (6) Fragrance 0.1 ────────────────────────────────── Total 100

Example 7: Creamy foundation A creamy foundation (product 4 of the present invention) of the following (composition) was produced according to the following (production method). (Preparation method) The powder components (1) to (5) separately mixed and pulverized are dispersed in a solution in which the aqueous phase components (6) to (9) are mixed.
Heated. The oil phase components (10) to (15) heated and dissolved at 80 ° C. were added to the previously prepared aqueous phase with stirring to emulsify. This is cooled with stirring, and flavored at 50 ° C (16)
Was added thereto, followed by cooling with stirring to obtain a product. (Composition) (% by weight) (1) Powder 315 of the present invention (2) Fluorine compound-treated powder (pigment) [The following pigments (titanium oxide, red iron oxide, black iron oxide and yellow iron oxide) were prepared according to Example 1. Treated] ・ Titanium oxide 5 ・ Bengara 1 ・ Black iron oxide 0.1 ・ Yellow iron oxide 0.6 (3) Water Remaining (4) Preservative 0.1 (5) Triethanolamine 1.2 (6 ) Sorbit 3 (7) Stearic acid 5 (8) Lipophilic glyceryl monostearate 2.5 (9) Cetostearyl alcohol 1 (10) Propylene glycol monolaurate 3 (11) Squalane 25 (12) Olive oil 8 (13) Fragrance 0.1 ────────────────────────────────── Total 100

Example 8: Solid white powder The following (composition) solid white powder (product 5 of the present invention) was produced according to the following (production method). (Preparation method) Components (1) to (7) were mixed and pulverized. This was transferred to a high-speed blender, and the components (8) to (10) mixed and dissolved at 80 ° C. were added and mixed.Then, pulverized again, passed through a sieve, and compression-molded into a metal plate to obtain a product. I got (Composition) (% by weight) (1) Powder of the present invention 250 (2) Fluorine compound-treated powder (pigment) [The following pigments (mica, talc, titanium oxide, red iron oxide, black iron oxide and iron yellow oxide) Each treated according to Example 1]-Mica balance-Talc 20-Titanium oxide 0.5-Bengala 0.1-Black iron oxide 0.01-Yellow iron oxide 0.1 (3) Liquid paraffin 8 (4 ) Beeswax 2 (5) Preservative appropriate amount (6) Fragrance trace amount ────────────────────────────────── Total 100

Example 9: O / W cream The following (composition) O / W cream (product 6 of the present invention) was produced according to the following (production method). (Preparation method) The aqueous phases of the components (8), (10), (12) and (13) were mixed by stirring and maintained at 80 ° C. The other components were mixed and dissolved by heating to 80 ° C. The aqueous phase was added to the oil phase, preliminarily emulsified, homogenized with a homomixer, and cooled to 30 ° C. to obtain a product. (Composition) (% by weight) (1) Beeswax 5.5 (2) Cetanol 4.5 (3) Hydrogenated lanolin 7 (4) Squalane 33 (5) Fatty acid glycerin 3.5 (6) Lipophilic glyceryl monostearate 2 (7) Polyoxyethylene sorbitan monolaurate ester (20EO) 2 (8) Powder of the present invention 28 (9) Fragrance trace (10) Preservative proper amount (11) Antioxidant proper amount (12) Propylene glycol 5 (13) Suitable amount of water 合計 Total 100

Example 10 Blush The blusher of the following (composition) (Product 7 of the present invention) was produced according to the following (production method). (Preparation method) Components (1) to (7) were mixed and colored. Next, components (8) to (10) are sprayed and added in a mixer, mixed uniformly, passed through a sieve, and then compressed into a metal plate using a press to solidify the product. Was. (Composition) (% by weight) (1) Powder of the present invention 250 (2) Fluorine compound-treated powder (pigment) [The following pigment (mica, talc, and titanium oxide each treated according to Example 1) • Mica residue Amount ・ Talc 20 ・ Titanium oxide 4 (3) Zinc stearate 5 (4) Rice starch 5 (5) Coloring material 3 (6) Liquid paraffin 3 (7) Preservatives Appropriate amount (8) Fragrance trace amount ──────合計 Total 100

Example 11 Eye Shadow The following (composition) eye shadow (Product 8 of the present invention) was produced according to the following (production method). (Preparation method) Components (1) to (7) were mixed and colored. Next, components (8) to (10) are sprayed and added in a mixer, mixed uniformly, passed through a sieve, and then compressed into a metal plate using a press to solidify the product. Was. (Composition) (%) (1) Powder of the present invention 350 (2) Fluorine compound-treated powder (pigment) [The following pigments (mica, talc and mica titanium were respectively treated according to Example 1). -Talc 5-Titanium mica 5 (3) Zinc stearate 5 (4) Zinc laurate 3 (5) Color pigment 10 (6) Liquid paraffin 7.5 (7) Preservative suitable amount (8) Fragrance trace amount ────合計 Total 100

The cosmetics of the present invention (products of the present invention 1 to 8) obtained in Examples 4 to 11 were all excellent in use feeling and extremely long lasting.

[0050]

The water / oil repellent cosmetic powder of the present invention is excellent in water / oil repellency and feel in use, particularly excellent in smoothness. Further, the cosmetic of the present invention contains the cosmetic powder of the present invention, and has good water resistance, sebum resistance and oil resistance,
Excellent prevention effect of makeup collapse due to sebum etc. (makeup lasting)
Moreover, it has good elongation on the skin and is excellent in use feeling, particularly excellent in smoothness.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-285373 (JP, A) JP-A-2-218603 (JP, A) JP-A 1-180811 (JP, A) JP-A Sho 62- 250074 (JP, A) JP-A-55-167209 (JP, A) JP-A-3-294210 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61K 7 / 00-7 / 50

Claims (2)

(57) [Claims] 1. A powder comprising an amidosulfonic acid polyvalent metal salt represented by the following general formula (I) represented by the following chemical formula (1) :
1) A water- and oil-repellent cosmetic powder, which is surface-treated with a phosphate ester having a perfluoroalkyl group represented by the general formula (III). Embedded image 2. A cosmetic comprising the water- and oil-repellent cosmetic powder according to claim 1.