JP2593983B2 - 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 when used, and a cosmetic containing the powder. More specifically, a water- and oil-repellent cosmetic powder, which is obtained by subjecting a powder to a surface treatment with a specific N-mono long-chain acyl basic amino acid and a phosphoric ester having a perfluoroalkyl group, and containing the powder Related to cosmetics.

[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 breakdown 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 cosmetic powders have a drawback that the smoothness becomes extremely poor in terms of feeling in use as compared to before treatment with a fluorine compound.

Further, it has been proposed to treat the surface of a powder with an N-mono long-chain acyl basic amino acid for the purpose of improving feel and adhesion (Japanese Patent Application Laid-Open No. 61-10503). However, when this amino acid-treated powder is used in combination with the above-mentioned fluorine compound-treated powder, the use feeling is improved, but the sebum resistance function is extremely reduced.

Accordingly, an object of the present invention is to provide a water- and oil-repellent cosmetic powder which is excellent in water repellency and oil repellency and which is excellent in feeling in use, particularly excellent in smoothness, and which contains the powder, and which is resistant to water and oil. Good sebum and oil resistance, excellent effect of preventing makeup collapse due to sebum, etc. (makeup lasting), and good elongation on the skin,
In particular, it is an object of the present invention to provide a cosmetic having excellent smoothness.

[0006]

Means for Solving the Problems As a result of intensive studies, the present inventors have conducted surface treatment of powder with a phosphoric acid ester having a specific N-mono long-chain acyl basic amino acid and a specific perfluoroalkyl group. By doing so, a water- and oil-repellent cosmetic powder having excellent water-repellent and oil-repellent properties, excellent feel in use, and exhibiting the same surface treatment effect regardless of the surface properties of the powder is obtained. It has been found that a cosmetic containing water- and oil-repellent cosmetic powder achieves the above object.

The present invention has been made on the basis of the above-mentioned findings, and it is intended to provide a powder comprising an N-mono long-chain acyl-basic amino acid having one aliphatic acyl group having 8 to 22 carbon atoms in a molecule; 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 formula (I). During [RfC _n H _2n O] _{y PO (OM) 3-y} (I) ( wherein, Rf is selected from the group consisting show a perfluoroalkyl group or a perfluorooxyalkyl group having 3 to 21 carbon atoms, linear or branched And even if of single chain length,
It may have a mixed chain length. n shows the integer of 1-12, y shows the number of 1-3. M represents hydrogen, an alkali metal, ammonium or substituted ammonium. Also, the present invention provides a cosmetic containing the 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. The powder used in the present invention is not particularly limited as long as it is usually used in cosmetics.For example, silicic acid, silicic anhydride, magnesium silicate, talc, sericite, mica, kaolin, red iron, clay, Bentonite, titanium-coated mica, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, aluminum oxide, calcium sulfate,
Inorganic powders such as barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, iron oxide, ultramarine blue, chromium oxide, chromium hydroxide, calamine and carbon black and composites thereof: polyamide, polyester, polyethylene, polypropylene, polystyrene, polyurethane ,
Vinyl resin, urea resin, phenolic resin, fluororesin,
Organic powders such as silicon resin, acrylic resin, melamine resin, epoxy resin, polycarbonate resin, divinylbenzene / styrene copolymer, silk powder, cellulose, CI Pigment Yellow, CI Pigment Orange, etc .:
And composites of these inorganic and organic powders. These powders are used alone or in combination of two or more.

The shape of the powder is not particularly limited, and a powder such as a plate, a lump, a scale and a sphere can be used irrespective of the presence or absence of pores, but a plate or a sphere is particularly preferable. The primary particle size of the powder is also not particularly limited as long as the outer shape of the powder is kept, but from the viewpoint of feeling in use and the like, it is 0.01 to 80.
μm, particularly preferably 0.1 to 20 μm. Examples of the basic amino acid constituting the N-mono long chain acyl basic amino acid used in the present invention include α, γ-diaminobutyric acid, ornithine, lysine, arginine, histidine and the like. These may be optically active or racemic.

The long-chain acyl group constituting the N-mono long-chain acyl basic amino acid used in the present invention includes a saturated or unsaturated linear or branched aliphatic acyl group having 8 to 22 carbon atoms. , They may be of single chain length or of mixed chain length. Specific examples of the long-chain acyl group include 2-ethylhexanoyl, capryloyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl, isostearyl, oleoyl, behenoyl, cocoyl, tallow fatty acid acyl, and hardened tallow fatty acid acyl. Is mentioned. The binding site of the long-chain acyl group to the basic amino acid is an amino group at the α-position or an amino group at the ω-position. In arginine and histidine, the binding site is limited to the amino group at the α-position.

Accordingly, the N-mono long chain acyl basic amino acids used in the present invention include, for example, Nε-2-ethylhexanoyl lysine, Nε-lauroyl lysine, N
ε-cocoyl lysine, Nε-palmitoyl lysine, Nε
-Isostearoyl lysine, Nε-hardened tallow fatty acid acyl lysine, Nα-capryloyl lysine, Nα-lauroyl lysine, Nα-myristoyl lysine, Nα-oleoyl lysine, Nα-behenoyl lysine, Nδ-cocoyl ornithine, Nδ-stearoyl ornithine, Nδ- Tallow fatty acid acyl ornithine, Nα-2-ethylhexanoyl ornithine, Nα-lauroyl ornithine, Nα-isostearoyl ornithine, Nγ-palmitoyl-α,
γ-diaminobutyric acid, Nα-tallow fatty acid acyl-α, γ-
Diaminobutyric acid, Nα-caproylarginine, Nα-lauroylarginine, Nα-palmitoylarginine,
Nα-hardened tallow fatty acid acylarginine, Nα-cocoylhistidine, Nα-isostearoylhistidine and the like.

The formula (I) used in the present invention is represented by the following formula:
Phosphate ester having perfluoroalkyl group
As, for example, diheptadecafluorodecyl phosphate
[(C₈F₁₇C_TwoH_FourO)_TwoPO (OH)], heptade
Cafluorodecyl phosphate [C ₈F₁₇C_TwoH_FourOPO (O
H)_Two], Diheptadecafluorodecyl phosphate and hepta
Sesqui body of decafluorodecyl phosphate [(C₈F₁₇C_Two
H_FourO)_1.5PO (OH)_1.5Etc. and these al
Potassium metal salts, ammonium salts and substituted ammonium salts, etc.
Is mentioned. Here, the substituted ammonium salt is
Alkanols such as tanolamine and diethanolamine
Salts such as amines and basic amino acids.

In order to obtain the water / oil repellent cosmetic powder of the present invention, any of a dry method by direct treatment and a wet method using an appropriate solvent can be used. Regardless of which method is used, in order to obtain a powder having excellent water and oil repellency and good touch, the inner layer of the treated powder is an N-mono long chain acyl basic amino acid and the outer layer is It is preferable that the phosphoric acid ester has a fluoroalkyl group. For this purpose, the powder is first treated with an N-mono long-chain acyl basic amino acid and then with the phosphate, or a solution containing both the N-mono long-chain acyl basic amino acid and the phosphate is used. Alternatively, the powder is brought into contact with the dispersion to selectively adsorb the N-mono long-chain acyl basic amino acid onto the powder first, and then the phosphate ester is adsorbed onto the powder by changing the solvent atmosphere. There is a need. Examples of the method of changing the solvent atmosphere include a method of changing the polarity of the solvent by adding water to an organic solvent and a method of adjusting the pH by adding an acid or alkali in an aqueous system.

As a method for surface-treating a powder with an N-mono long-chain acyl basic amino acid, any of a dry method and a wet method can be used. The dry method is a simple and effective method, and according to the method,
The fine powder of the N-mono long chain acyl basic amino acid and the powder are stirred and mixed, or the N-mono long chain acyl basic amino acid and the powder are mixed and then pulverized to obtain a powder. The surface can be easily treated. Also,
In the case of the above wet method, N-mono long-chain acyl basic amino acids are hardly soluble in water near neutrality and ordinary oils. Is dissolved in an organic solvent, and then brought into contact with the powder. The powder is further washed with water, calcium chloride is removed, and the powder is dried to treat the surface of the powder.

In addition to the above-mentioned dry method and wet method, an N-mono long-chain acyl basic amino acid is dissolved in acidic or alkaline water or an aqueous solvent and brought into contact with the powder, and then brought to near neutrality. The same surface treatment can also be carried out by a method of neutralizing to deposit N-mono long-chain acyl basic amino acids on the powder surface, removing salts produced by the neutralization by washing with water, and drying (Japanese Patent Application Laid-Open No. 61-261). No. 7202, JP-A-6
1-110503).

The amount of the N-mono long-chain acyl basic amino acid to be applied to the above powder is preferably 0.05 to 20% by weight, more preferably 0.5 to 15% by weight. 0.0
If the amount is less than 5% by weight, it is difficult to obtain a sufficient surface treatment effect. If the amount exceeds 20% by weight, the surface treatment effect is not so much improved, so that there is no advantage in terms of economy. The water- and oil-repellent cosmetic powder of the present invention is obtained by subjecting the powder surface-treated with the N-mono long-chain acyl basic amino acid as described above to a double surface treatment with a phosphate ester having a perfluoroalkyl group. As a surface treatment method for obtaining a body, various methods commonly used can be adopted.

For example, the surface treatment may be performed by mixing a phosphoric acid ester having a perfluoroalkyl group as it is while mixing the powder in a mixing and stirring device such as a Henschel mixer, a vibrating ball mill, a rotary ball mill, and a super mixer. It is dissolved in an appropriate solvent (for example, water, ethanol, isopropyl alcohol, chloroform, Freon R113 and a mixed solvent thereof), added by spraying or dropping, uniformly dispersed, and then dried at room temperature or by heating. It can be carried out. When a solvent having a perfluoroalkyl group having 8 or more carbon atoms is used as the solvent, the solvent is extremely low in fluidity, so that the solvent is used after being dissolved in a fluorine-based solvent such as Freon R113 and hexafluorometa-xylene. Is preferred.

The processing amount of the phosphoric acid ester having a perfluoroalkyl group to the N-mono long chain acyl basic amino acid-treated powder is preferably 0.01 to 30% by weight, more preferably 0.5 to 15% by weight. % By weight. 0.
If it is less than 01% by weight, it is difficult to obtain sufficient water resistance and oil resistance, and if it exceeds 30% by weight, the feeling of use tends to deteriorate.

Next, the cosmetic of the present invention containing the above-mentioned water- and oil-repellent cosmetic powder of the present invention will be described in detail. The content of the water- and oil-repellent cosmetic powder of the cosmetic of the present invention can be appropriately determined according to the type of the intended cosmetic, but is usually in the range of 0.1 to 99% by weight. . In the cosmetic of the present invention, in addition to the above-mentioned essential components, components which are added to ordinary cosmetics may be added as necessary. These components include, for example, petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, solid and semi-solid oil components such as higher fatty acids and higher alcohols; squalane, liquid paraffin, ester oil, diglyceride, triglyceride, silicon Fluid oils such as oils; fluorinated oils such as perfluoropolyether, perfluorodecalin and perfluorooctane: water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, inorganic and organic compounds treated with silicon or fluorine compounds Coloring agents such as organic pigments and organic dyes, ethanol, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, ultraviolet absorbers, humectants, blood circulation promoters, cooling agents, antiperspirants, Fungicide,
A skin activator and the like can be mentioned, and can be blended within a range that does not impair the purpose of the present invention.

The cosmetic of the present invention can be produced according to a usual method, and includes a foundation, an eye shadow,
It can be applied to makeup cosmetics such as blusher and basic cosmetics such as emulsion and cream.

[0021]

The water- and oil-repellent cosmetic powder of the present invention is incorporated into cosmetics, prevents makeup collapse due to sebum, etc., improves the elongation of the cosmetics on the skin, and gives a good feeling to the skin. Is given.

[0022]

EXAMPLES Next, the present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples. In addition, the following compounding amounts are all% by weight.
It is. Example 1 150 g of sericite and 7.5 g of N-lauroyl lysine were placed in a Henschel mixer and stirred and mixed for 10 minutes to perform surface treatment of the above-mentioned sericite, thereby obtaining N-lauroyl lysine-treated sericite (155 g). Next, the obtained N
-155 g of lauroyl lysine treated sericite is placed in a round bottom flask (or kneader), into which C ₈ F ₁₇ CH
₂ CH ₂ OP (O) (OH) ₂ and (C ₈ F ₁₇ CH ₂ CH
7.5 g of a 1: 1 mixture with ₂ O) ₂ P (O) OH
Heat and dissolve in 1500 g of isopropyl alcohol (50
C.) and mixed at 60 ° C. for 4 hours.
Thereafter, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C and dried to obtain 160 g of the desired water- and oil-repellent cosmetic powder of the present invention.

Example 2 50 g of sericite was placed in a round bottom flask (or kneader).
Then, 50 g of calcium chloride was previously dissolved in 2500 g of ethanol, and then 2.5 g of N-lauroyl lysine was added thereto, followed by stirring and mixing at room temperature for 2 hours. Next, this was filtered, washed with water to remove calcium chloride, and dried to obtain N-lauroyl lysine-treated sericite (51 g). Next, 155 g of the N-lauroyl lysine-treated sericite thus obtained was placed in a round bottom flask (or kneader), and (C _m F) was added thereto.
_{2m + 1} C ₂ H ₄ O) _1.5 PO (OH) _1.5 [m = 6-18
(Average 9)] 7.5 g of isopropyl alcohol 15
Then, heat-dissolved (50 ° C) was added to 00g, and 6 g
Mix at 0 ° C. for 4 hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C and dried to obtain 160 g of the desired water- and oil-repellent cosmetic powder of the present invention.

Example 3 The procedure of Example 1 was repeated, except that barium sulfate [manufactured by Sakai Chemical Industry Co., Ltd.] was used instead of sericite. The water repellency of the present invention
An oil-repellent cosmetic powder was obtained. Example 4 In Example 2, except that mica was used instead of sericite, treatment was performed under substantially the same conditions as in Example 2 to obtain the desired water- and oil-repellent cosmetic powder of the present invention. Obtained.

Comparative Example 1 A round bottom flask (or kneader) was charged with 50 g of sericite.
Then, 50 g of calcium chloride was previously dissolved in 2500 g of ethanol, and then 2.5 g of N-lauroyl lysine was added thereto, followed by stirring and mixing at room temperature for 2 hours. Next, this was filtered, washed with water to remove calcium chloride, and dried to obtain 51 g of comparative powder.

Comparative Example 2 A round bottom flask (or kneader) was charged with 150 g of sericite.
And C ₈ F ₁₇ CH ₂ CH ₂ OP (O) (O
H) ₂ and (C ₈ F ₁₇ CH ₂ CH ₂ O) ₂ P (O) OH, 7.5 g of a nearly 1: 1 mixture, heated and dissolved (50 ° C.) in 1500 g of isopropyl alcohol are added. Mix at 60 ° C. for 4 hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C and dried to obtain 155 g of comparative powder.

Comparative Example 3 Comparative Example 1 was treated under substantially the same conditions as in Comparative Example 1 except that barium sulfate was used instead of sericite to obtain 155 g of comparative powder. Comparative Example 4 Comparative Example 2 was treated under substantially the same conditions as in Comparative Example 2 except that barium sulfate was used instead of sericite to obtain 155 g of a comparative powder.

Test Example 1 Each of the powders obtained in Examples 1 to 4 and Comparative Examples 1 to 4 was evaluated for water repellency, oil repellency and feel in use by the following evaluation methods. The results are shown in Table 1 below. (Evaluation method of water repellency) Put 15 ml of water in a 30 ml beaker, float about 0.05 g of each powder on the water, shake the beaker, observe the dispersibility of the powder in water, and evaluate the following. The evaluation was based on criteria.

Evaluation Criteria 0: The powder was immediately dispersed in water. 1: When the beaker was shaken, the powder was almost completely dispersed in water within 30 seconds. 2: When the beaker was shaken, the water became white and cloudy after 1 minute, but powder floating on the water was also observed. 3: When the beaker was shaken, the water became cloudy and white after 1 minute, but there were many powders floating on 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 minutes or more, no powder dispersed in water 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) The feeling of powder, such as smoothness, squeaking, and roughness, was evaluated by five professional panelists on a scale of 1 to 5 shown below, and the average value was shown.
The feel of untreated powder of sericite A (manufactured by Horie Kako Co., Ltd.) having an average particle size of 7 μ was set to a standard value of 3.0. 1: The feeling such as smoothness is poor. 2: The touch such as smoothness is slightly poor. 3: Normal (equivalent to Sericite A) 4: Feeling such as smoothness is slightly good. 5: Good feeling such as smoothness.

[0031] From the above Table 1, the water- and oil-repellent cosmetic powder of the present invention is:
It can be seen that the water repellency, the oil repellency and the feel are excellent as compared with the case where the N-mono long chain acyl basic amino acid or the phosphoric acid ester having a perfluoroalkyl group is used alone.

Embodiment 5 FIG. Pressed face powders Pressed face powders having the compositions shown in Table 2 below were produced by the following methods, respectively, and the makeup durability and perceived use against sweat and sebum were evaluated by the following evaluation methods. Table 3 shows the results. (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.

[0033] (Evaluation method) Sensory evaluation was carried out by 10 expert panelists on the cosmetic durability and feeling of use of the above products, and the results were indicated by the following criteria. ：: 8 or more good △: 4 to 7 good ×: Less than 4 good As is clear from Table 3 above, the product of the present invention was a pressed face powder which was more excellent in cosmetic durability and use feeling than the comparative product.

Embodiment 6 FIG. Powder foundation A powder foundation having the following composition was produced in the same manner as in Example 5. (Composition) (% by weight) (1) Water-repellent and oil-repellent cosmetic powder (treated in the same manner as in Example 1 and later mixed) Sericite 45.0 Mica 23.0 Kaolin 5.0・ Titanium oxide 10.0 ・ Bengara 2.0 ・ Yellow iron oxide 2.5 ・ Black iron oxide 0.1 (2) Perfluoropolyether 10.0 (FOMBLIN HC-04, manufactured by Montefros) (3) Dimethylpoly Siloxane 2.0 (4) Preservative 0.2 (5) Fragrance 0.2 Example 7 Cheek red The cheek red having the following composition was produced in the same manner as in Example 5. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (the one treated in the same manner as in Example 2 is mixed later) ・ Kaolin balance ・ Mica 13.0 ・ Titanium oxide 12.0 ・ Red 202 0.4 Iron oxide (red, black, yellow) 5.0 (2) Squalane 7.5 (3) Dimethylpolysiloxane 7.5 (4) Preservatives 0.05 (5) Fragrance 0.05 Example 8 Powder Eye Shadow A pigment other than mica titanium was mixed and ground first, and then the mica titanium was mixed. Otherwise, in the same manner as in Example 5, a powder eye shadow having the following composition was produced. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (treated in the same manner as in Example 2 and mixed later) • Titanium mica 4.9 • Sericite balance • Mica 24.7 • Iron oxide ( (Red, yellow, black) 2.0-Ultramarine blue 9.8-Dark blue 14.6 (2) Dimethylpolysiloxane 1.9 (3) Squalane 1.9 (4) Vaseline 1.9 (5) Sorbitan trioleate 1. 0 (6) Preservative 1.0 (7) Fragrance 0.1 Dual-use powder foundation A dual-use powder foundation having the following composition was produced in the same manner as in Example 8. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (treated in the same manner as in Example 1 and mixed later) • Mica balance • Talc 4.8 • Titanium oxide 14.0 • Titanium mica 5-Iron oxide (red, yellow, black) 8.2-Zinc oxide 4.5-Aluminum oxide 10.0-Barium sulfate 5.0-Polyethylene powder 1.0 (2) Dimethyl polysiloxane 4.0 (3 ) Lanolin 6.0 (4) Vaseline 1.0 (5) Liquid paraffin 1.0 (6) Isopropyl myristate 1.0 (7) Preservative 1.5 (8) Perfume 0.1 Loose type face powder Powder components are mixed and crushed, transferred to a Henschel mixer, added with an oil agent and fragrance and mixed so as to be uniform.
Through a sieve, a loose type face powder having the following composition was produced. (Composition) (% by weight) (1) Treated powder of Example 3 50.0 (2) Talc balance (3) Bengala 0.1 (4) Liquid paraffin 1.0 (5) Fragrance 0.1 Example 11 . After the oil phase was dissolved at room temperature, a pigment was added and dispersed by a disper. The aqueous phase was added with stirring and emulsified to produce a sunscreen emulsion having the following composition. (Composition) (% by weight) (1) Octamethylcyclotetrasiloxane 25.0 (2) Perfluoropolyether 10.0 (manufactured by FOMBLIN HC-04 Montefros) (3) Dimethylpolysiloxane / polyoxyalkylene copolymer 1.0 (4) Glycerin 2.0 (5) Ethanol 12.0 (6) Residual purified water (7) Octyl methoxycinnamate 2.0 (8) Zinc oxide (treated in the same manner as in Example 2) 7.5) (9) Talc (treated in the same manner as in Example 2) 7.0 (10) Fragrance, fine amount Example 12 Sunscreen cream A homogeneous mixed solution of components 10 and 12 dispersed in component 9 with a disper and components 6 to 8 is added to the aqueous components of components 1 to 5 under stirring, and emulsified. A cream was produced. (Composition) (% by weight) (1) Polyoxyethylene (50) hydrogenated castor oil 0.5 (2) Polyoxyethylene (20) sorbitan palmitate 1.0 (3) Glycerin 6.0 (4) 1, 3 -Butylene glycol 6.0 (5) purified water 15.5 (6) squalane 5.0 (7) jojoba oil 5.0 (8) octamethylcyclotetrasiloxane 18.0 (9) perfluoropolyether 35.0 (FOMBLIN HC-04 manufactured by Montefros Co., Ltd.) (10) Titanium oxide (treated in the same manner as in Example 1) 1.0 (11) Talc (treated in the same manner as in Example 1) 5.0 (12) ) Octyl methoxycinnamate 2.0 Example 13, two-layer separation type liquid foundation After dissolving the oil phase at room temperature, a pigment was added and dispersed with a disper. The aqueous phase was added with stirring and emulsified to produce a liquid foundation having the following composition. (Composition) (% by weight) (1) Pigment (treated in the same manner as in Example 1 and then mixed) Titanium oxide 6.0 Sericite 9.0 Iron oxide (red, yellow, black) 2 (2) Octamethylcyclotetrasiloxane 20.0 (3) Dimethylpolysiloxane 2.0 (KF-96A, 6cs, manufactured by Shin-Etsu Chemical Co., Ltd.) (4) Dimethylpolysiloxane / polyoxyalkylene copolymer 1.0 ( 5) Perfluoropolyether 10.0 (FOMBLIN HC-04 manufactured by Montefroth) (6) Glycerin 2.0 (7) Ethanol 15.0 (8) Remaining purified water (9) Appropriate perfume Examples 6-13 All of the cosmetics of the present invention obtained in the above were excellent in use feeling and extremely long lasting.

Example 14 50 g of calcium chloride was dissolved in 2500 g of ethanol, and 2.5 g of Nε-lauroyl lysine was dissolved therein. To _{(C m F 2m + 1 C} 2 H 4 O) 1.5 PO [ON
(H ₂ ) (CH ₂ CH ₂ OH) ₂ ] 17 g of a 15% aqueous solution of _1.5 was added, and 50 g of sericite was further added, followed by stirring and mixing at room temperature for 2 hours. Next, this is filtered, washed with water, dried,
51 g of the desired water- and oil-repellent cosmetic powder of the present invention was obtained.

Test Example 1 and Example 5
And the same results were obtained.

[0037]

EFFECT OF THE INVENTION The water- and oil-repellent cosmetic powder of the present invention is excellent in water- and oil-repellency, and has excellent feeling in use, particularly excellent in smoothness. The cosmetic of the present invention containing the oil-repellent cosmetic powder contains the powder, has excellent water resistance, sebum resistance, and oil resistance, and has an excellent effect of preventing makeup collapse due to sebum and the like (makeup durability). In addition, 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-61-10503 (JP, A) JP-A-55-167209 (JP, A) JP-A 1-180811 (JP, A) JP-A 4-108 225075 (JP, A)

Claims (2)

(57) [Claims] 1. A powder comprising an N-mono long-chain acyl basic amino acid having one aliphatic acyl group having 8 to 22 carbon atoms in a molecule and a perfluoroalkyl group represented by the following general formula (I): A water- and oil-repellent cosmetic powder, which is surface-treated with a phosphoric ester having the formula: During [RfC _n H _2n O] _{y PO (OM) 3-y} (I) ( wherein, Rf is selected from the group consisting show a perfluoroalkyl group or a perfluorooxyalkyl group having 3 to 21 carbon atoms, linear or branched And even if of single chain length,
It may have a mixed chain length. n shows the integer of 1-12, y shows the number of 1-3. M represents hydrogen, an alkali metal, ammonium or substituted ammonium. ) 2. A cosmetic comprising the water- and oil-repellent cosmetic powder according to claim 1.