JPH0593153A - Cosmetic powder having water and oil repellency and cosmetic containing the powder - Google Patents

Abstract

PURPOSE:To provide a cosmetic powder which has excellent water and oil repellency and touch, especially smoothness, and to provide a cosmetic which contains the powder, has good resistance to water, sebaceous matter, and oil, is well prevented from having impaired adhesion to the skin due to, e.g. sebaceous matter (i.e., good in lasting property), can be spread well on the skin, and has good touch, particularly smoothness. CONSTITUTION:The title powder is obtained by treating the surfaces of powder particles with an N-substituted basic amino acid having, per molecule, one 8-22C aliphatic acyl group as the substituent and with a phosphoric ester having a perfluoroalkyl group and represented by the formula (RfCnH2nO)yPO(OM)3-y. In the formula, Rf is a linear or branched 3-21C perfluoroalkyl or perfluorooxyalkyl group, provided that the groups of Rf may be uniform or different in chain length; n is an integer of 1 to 12; y is 1 to 3; and M is a hydrogen atom, an alkali metal, ammonium, or a substituted ammonium. The title cosmetic contains the powder.

Description

Detailed Description of the Invention

[0001]

The present invention has excellent water and oil repellency,
The present invention relates to a water-repellent / oil-repellent cosmetic powder which does not cause makeup deterioration, has good spreadability on the skin, and has a good feeling in use, and a cosmetic material containing the powder. More specifically, the water- and oil-repellent cosmetic powder obtained by surface-treating the powder with a specific N-mono long-chain acyl basic amino acid and a phosphoric acid ester having a perfluoroalkyl group, and the powder containing the powder. Regarding cosmetics to do.

[0002]

2. Description of the Related Art Cosmetics containing cosmetic powders include makeup cosmetics such as foundation, white powder, blusher, eye shadow, eyebrow, body powders and baby powders. Cosmetics are commercially available. In cosmetics containing these cosmetic powders, cosmetic properties such as elongation on the skin, smoothness, and makeup loss, especially makeup degradation due to sebum are problems.

In recent years, it has been proposed to treat the powder with a fluorine compound to impart water repellency and oil repellency to the powder for the purpose of preventing the makeup from being damaged by the sebum of the above cosmetics (Japanese Patent Application Laid-Open No. 2000-242242). JP-A-55-167209, JP-A-62-250074
No. 1-180811 and U.S. Pat. No. 3,632,744). However, these water-repellent / oil-repellent cosmetic powders have a drawback in that the smoothness in terms of feeling in use becomes extremely worse than that before treatment with a fluorine compound.

Further, it has been proposed to treat the surface of the powder with N-mono long-chain acyl basic amino acid for the purpose of improving the feel and the adhesiveness (JP-A-61-15033). However, when this amino acid-treated powder is used in combination with the above-mentioned fluorine compound-treated powder, the feeling in use is improved, but the sebum resistance function is extremely reduced.

Therefore, 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 has excellent feeling in use, especially smoothness, and a water-resistant and water-resistant cosmetic powder containing the powder. It has excellent sebum and oil resistance, has an excellent effect of preventing makeup from being damaged by sebum (makeup lasting), has good spreadability on the skin, and has a feeling of use,
Particularly, it is to provide a cosmetic having excellent smoothness.

[0006]

Means for Solving the Problems As a result of intensive studies, the present inventors have carried out a 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. As a result, a water-repellent / oil-repellent cosmetic powder having water-repellent / oil-repellent properties, an excellent feel in use, and a similar surface treatment effect regardless of the surface properties of the powder can be obtained. It has been found that a cosmetic containing water-repellent / oil-repellent cosmetic powder achieves the above object.

The present invention has been made on the basis of the above-mentioned findings. A powder of N-mono long-chain acyl basic amino acid having one aliphatic acyl group having 8 to 22 carbon atoms in the molecule and the following general It is intended to provide a water-repellent / oil-repellent cosmetic powder which is surface-treated with a phosphoric ester having a perfluoroalkyl group represented by the formula (I). [RfC _n H _2n O] _y PO (OM) _3-y (I) (In the formula, Rf represents a perfluoroalkyl group having 3 to 21 carbon atoms or a perfluorooxyalkyl group, and is linear or branched. And even if it has a single chain length,
It may have a mixed chain length. n shows the integer of 1-12 and y shows the number of 1-3. M represents hydrogen, alkali metal, ammonium or substituted ammonium. The present invention also provides a cosmetic containing the water-repellent / oil-repellent cosmetic powder of the present invention.

First, the water / oil repellent cosmetic powder of the present invention will be described in detail below. 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 acid anhydride, magnesium silicate, talc, sericite, mica, kaolin, red iron oxide, clay, Bentonite, titanium coated mica, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, aluminum oxide, calcium sulfate,
Inorganic powder such as barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, iron oxide, ultramarine blue, chromium oxide, chromium hydroxide, calamine and carbon black and their composites: polyamide, polyester, polyethylene, polypropylene, polystyrene, polyurethane ,
Vinyl resin, urea resin, phenol 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 powders and organic powders. These powders may be used alone or in combination of two or more.

The shape of the powder is not particularly limited, and powder such as flat plate, lump, scale and spherical can be used regardless of the presence or absence of pores, but flat plate or spherical 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 maintained, but from the viewpoint of the feeling of use and the like, it is 0.01 to 80.
μm, particularly 0.1 to 20 μm is preferable. Examples of the basic amino acid that constitutes 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.

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

Therefore, examples of the N-mono long-chain acyl basic amino acid used in the present invention include Nε-2-ethylhexanoyl lysine, Nε-lauroyl lysine, N
ε-cocoyl lysine, Nε-palmitoyl lysine, Nε
-Isostearoyl lysine, N [epsilon] -cured tallow fatty acid acyl lysine, N [alpha] -capryloyl lysine, N [alpha] -lauroyl lysine, N [alpha] -myristoyl lysine, N [alpha] -oleoyl lysine, N [alpha] -behenoyl lysine, N [delta] -cocoyl ornithine, N [delta] -stearoyl ornithine, N [delta]-. Beef tallow fatty acid acylornithine, Nα-2-ethylhexanoylornithine, Nα-lauroylornithine, Nα-isostearoylornithine, Nγ-palmitoyl-α,
γ-diaminobutyric acid, Nα-beef tallow fatty acid acyl-α, γ-
Diaminobutyric acid, Nα-caproylarginine, Nα-lauroylarginine, Nα-palmitoylarginine,
Examples include Nα-cured tallow fatty acid acylarginine, Nα-cocoyl histidine, Nα-isostearoyl histidine and the like.

The above formula (I) used in the present invention is represented by
Ester having perfluoroalkyl group
As, for example, diheptadecafluorodecyl phosphate
[(C₈F₁₇C₂H_FourO)₂PO (OH)], heptade
Cafluorodecyl phosphate [C ₈F₁₇C₂H_FourOPO (O
H)₂], Diheptadecafluorodecylphosphate and hepta
Decafluorodecylphosphate sesqui form [(C₈F₁₇C₂
H_FourO)_1.5PO (OH)_1.5] Etc. and these al
Potassium metal salt, ammonium salt, substituted ammonium salt, etc.
Is mentioned. Here, the substituted ammonium salt is a monoamine.
Alkanols such as tanolamine and diethanolamine
It refers to salts of amines and basic amino acids.

In order to obtain the water-repellent / oil-repellent cosmetic powder of the present invention, either a dry method by direct treatment or a wet method using an appropriate solvent can be used. Whichever method is used, in order to obtain a powder excellent in water repellency and oil repellency and having a good feeling, the inner layer of the treated powder is N-mono long-chain acyl basic amino acid and the outer layer is a per layer. It is preferable that the phosphoric acid ester has a fluoroalkyl group. For that purpose, the powder is first treated with an N-mono long-chain acyl basic amino acid and then with the phosphate ester, or a solution containing both the N-mono long-chain acyl basic amino acid and the phosphate ester. Alternatively, the dispersion and the powder are brought into contact with each other so that the N-mono long-chain acyl basic amino acid is selectively adsorbed on the powder, and then the atmosphere of the solvent is changed to adsorb the phosphoric acid ester on the powder. There is a need. As such a method of changing the solvent atmosphere, there are a method of changing the polarity of the solvent by adding water to the organic solvent, a method of adding an acid or an alkali in the water system to adjust the pH, and the like.

As a method for surface-treating the powder with N-mono long-chain acyl basic amino acid, either a dry method or a wet method can be used. The dry method is a simple and effective method, and according to the method,
A fine powder of N-mono long-chain acyl basic amino acid and powder are mixed by stirring, or N-mono long-chain acyl basic amino acid and powder are mixed and then co-ground to prepare a powder. The surface can be easily treated. Also,
In the case of the above-mentioned wet method, since N-mono long-chain acyl basic amino acid is hardly dissolved in water around neutral and normal oil, N-mono long-chain acyl basic amino acid is used by using calcium chloride as a solubilizing agent. After being dissolved in an organic solvent, the surface of the powder can be treated by bringing the powder into contact with the powder, further washing the powder with water, removing calcium chloride and drying.

In addition to the above dry method and wet method, the 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 the mixture is then neutralized. The same surface treatment can be carried out by a method of neutralizing and depositing N-mono long-chain acyl basic amino acid on the surface of the powder, removing the salt produced by neutralization by washing with water, and then drying. -7202, JP-A-6-6
No. 1-10503).

The amount of the N-mono long-chain acyl basic amino acid to be treated with respect to the above powder is preferably 0.05 to 20% by weight, more preferably 0.5 to 15% by weight. 0.0
If it is less than 5% by weight, it is difficult to obtain a sufficient surface treatment effect, and if it exceeds 20% by weight, the surface treatment effect does not improve so much, so there is no economical advantage. The water-repellent / 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 phosphoric ester having a perfluoroalkyl group. As a surface treatment method for obtaining a body, various commonly used methods can be adopted.

For example, in the above surface treatment, while mixing the powder in a mixing and stirring device such as a Henschel mixer, a vibration type ball mill, a rotary type ball mill or a super mixer, the phosphate ester having a perfluoroalkyl group is used as it is, or By dissolving in a suitable solvent (for example, water, ethanol, isopropyl alcohol, chloroform, Freon R113 and a mixed solvent thereof) by spraying or dripping, uniformly dispersing, and then drying 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 above solvent, since the fluidity of the solvent is extremely low, the solvent is used after being dissolved in a fluorine-based solvent such as Freon R113 or hexafluoromethaxylene. Preferably.

The amount of the phosphate ester having a perfluoroalkyl group to be treated with respect 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. 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-repellent / oil-repellent cosmetic powder of the present invention will be described in detail. The content of the water-repellent / oil-repellent cosmetic powder in 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 addition to the above-mentioned essential components, the cosmetic composition of the present invention may contain, if necessary, components that are contained in ordinary cosmetic compositions. Examples of these components include solid and semi-solid oil components such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids and higher alcohols; squalane, liquid paraffin, ester oil, diglyceride, triglyceride, silicone. Fluid oils such as oils; Fluorine-based oil agents such as perfluoropolyether, perfluorodecalin, and perfluorooctane: water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, inorganics 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 sensation agents, antiperspirants, Fungicide,
Skin activating agents and the like can be mentioned, and they can be blended within a range not impairing the object of the present invention.

The cosmetic composition of the present invention can be manufactured according to a conventional method, including a foundation, an eye shadow,
It can be applied to makeup cosmetics such as blusher and basic cosmetics such as emulsions and creams.

[0021]

The water-repellent / oil-repellent cosmetic powder of the present invention is incorporated into cosmetics to prevent makeup deterioration due to sebum and the like and to improve the spread of the cosmetics on the skin, resulting in a good feeling on 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, all the following compounding amounts are weight
Is. Example 1 150 g of sericite and 7.5 g of N-lauroyl lysine were placed in a Henschel mixer and mixed with stirring for 10 minutes to perform surface treatment of the sericite to obtain N-lauroyl lysine-treated sericite (155 g). Next, the obtained N
155 g of lauroyl lysine treated sericite was placed in a round bottom flask (or kneader), to which was added 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,
Dissolved in 1500 g of isopropyl alcohol by heating (50
(° C) was added and mixed at 60 ° C for 4 hours.
Then, 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 dissolved in 2500 g of ethanol in advance, and then 2.5 g of N-lauroyl lysine was dissolved therein, and the mixture was stirred and mixed at room temperature for 2 hours. Next, this was filtered, washed with water to remove calcium chloride, and then 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), in which (C _m F
_{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
Add what was heated and dissolved (50 ℃) to 00g, and
Mix for 4 hours at 0 ° C. Then, 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 same procedure as in Example 1 was carried out except that barium sulfate (produced by Sakai Chemical Industry Co., Ltd.) was used instead of sericite. Water repellent of the present invention
An oil-repellent cosmetic powder was obtained. Example 4 The same procedure as in Example 2 was carried out except that mica was used instead of sericite to obtain the desired water-repellent / oil-repellent cosmetic powder of the present invention. Obtained.

Comparative Example 1 50 g of sericite was placed in a round bottom flask (or kneader).
Then, 50 g of calcium chloride was dissolved in 2500 g of ethanol in advance, and then 2.5 g of N-lauroyl lysine was dissolved therein, and the mixture was stirred and mixed at room temperature for 2 hours. Next, this was filtered, washed with water to remove calcium chloride, and then dried to obtain 51 g of a comparative powder.

Comparative Example 2 150 g of sericite in a round bottom flask (or kneader)
It was placed, _{to, 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 in a mixture of about 1: 1 (7.5 g) dissolved in 1500 g of isopropyl alcohol by heating (50 ° C.) was added. Mix at 60 ° C. for 4 hours. Then, 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 Comparative Example 1 except that barium sulfate was used instead of sericite to obtain 155 g of a comparative powder. Comparative Example 4 Comparative Example 2 was treated under substantially the same conditions as Comparative Example 2 except that barium sulfate was used instead of sericite to obtain 155 g of 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 of use by the following evaluation methods. The results are shown in Table 1 below. (Water repellency evaluation method) Put 15 ml of water in a 30 ml beaker, float about 0.05 g of each powder on the water, shake the beaker and observe the dispersibility of the powder in water. It was evaluated according to the standard.

Evaluation Criteria 0: The powder was immediately dispersed in water. 1: When the beaker was shaken, the powder was almost dispersed in water within 30 seconds. 2: When the beaker was shaken, the water became cloudy after 1 minute, but some powder floated on the water. 3: When the beaker was shaken, the water became cloudy after 1 minute, but many powders floated on the water. 4: When the beaker was shaken, the water did not turn cloudy after 1 minute, and no powder dispersed in water was observed. No powder dispersed in water was observed even if the beaker was shaken for 5 minutes or more.

(Evaluation method of oil repellency) Evaluation was carried out in the same manner as in the evaluation method of water repellency except that squalane was placed in a beaker for 30 ml instead of water. (Evaluation Method of Feeling) The feeling of the powder such as smoothness, squeaky feeling, and rough feeling was evaluated by 5 professional panelists in the following 5 grades from 1 to 5 and shown as an average value.
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 of smoothness is poor. 2: The feeling of smoothness is a little bad. 3: Normal (equivalent to sericite A) 4: Fairly smooth feeling and the like. 5: Good feeling such as smoothness.

[0031] From Table 1 above, the water / 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 ester having a perfluoroalkyl group is used alone.

Example 5. Pressed Face Powders Pressed face powders having the compositions shown in Table 2 below were produced by the following production methods, and the makeup retention against sweat and sebum and the feeling of use were evaluated by the following evaluation methods. The results are shown in Table 3. (Production method) The powder components were mixed and pulverized, transferred to a Henschel mixer, and the oil agent and the fragrance were added and mixed to be uniform. This was press-molded on a gold plate to obtain a product.

[0033] (Evaluation method) With respect to the makeup retention and feel of use of the above products, sensory evaluation was performed by 10 professional panelists, and the results were shown according to the following criteria. ◯: Good for 8 or more △: Good for 4 to 7 ×: Good for less than 4 As is clear from Table 3 above, the product of the present invention was a press-type face powder that was more excellent in makeup retention and feeling in use than the comparative product.

Example 6. 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 / oil-repellent cosmetic powder (after being treated in the same manner as in Example 1, mixed later) -Serisite 45.0-Mica 23.0-Kaolin 5.0・ Titanium oxide 10.0 ・ Red iron oxide 2.0 ・ Yellow iron oxide 2.5 ・ Black iron oxide 0.1 (2) Perfluoropolyether 10.0 (FOMBLIN HC-04, manufactured by Montefloss) (3) Dimethyl poly Siloxane 2.0 (4) Preservative 0.2 (5) Perfume 0.2 Example 7. Blusher A blusher having the following composition was produced in the same manner as in Example 5. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (after being treated in the same manner as in Example 2) -Kaolin balance-Mica 13.0-Titanium oxide 12.0-Red No. 202 2 .4 Iron oxide (red, black, yellow) 5.0 (2) Squalane 7.5 (3) Dimethyl polysiloxane 7.5 (4) Preservative 0.05 (5) Perfume 0.05 Example 8. Powder Eye Shadow A pigment other than titanium mica was first mixed and pulverized, and then titanium mica 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 (after being treated in the same manner as in Example 2, mixed later) -Titanium mica 4.9-Serisite balance-Mica 24.7-Iron oxide ( Red, yellow, black) 2.0 ・ Ultramarine 9.8 ・ Navy blue 14.6 (2) Dimethyl polysiloxane 1.9 (3) Squalane 1.9 (4) Vaseline 1.9 (5) Sorbitan trioleate 1. 0 (6) Preservative 1.0 (7) Perfume 0.1 Example 9. 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 (after being treated in the same manner as in Example 1), mica balance, talc 4.8, titanium oxide 14.0, and mica titanium 3. 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) Dimethylpolysiloxane 4.0 (3 ) Lanolin 6.0 (4) Vaseline 1.0 (5) Liquid paraffin 1.0 (6) Isopropyrimyristate 1.0 (7) Preservative 1.5 (8) Perfume 0.1 Example 10. Loose type face powder Mix and pulverize powder components, transfer to a Henschel mixer, add oil and fragrance and mix evenly,
A loose type face powder having the following composition was produced through a sieve. (Composition) (wt%) (1) Treated powder of Example 3 50.0 (2) Talc balance (3) Red iron oxide 0.1 (4) Liquid paraffin 1.0 (5) Perfume 0.1 Example 11 ． Two-layer separation type sunscreen emulsion After the oil phase was dissolved at room temperature, a pigment was added and dispersed with a disper. The aqueous phase was added with stirring to emulsify to prepare a sunscreen emulsion having the following composition. (Composition) (% by weight) (1) Octamethylcyclotetrasiloxane 25.0 (2) Perfluoropolyether 10.0 (FOMBLIN HC-04 manufactured by Montefloss) (3) Dimethylpolysiloxane / polyoxyalkylene copolymer 1.0 (4) Glycerin 2.0 (5) Ethanol 12.0 (6) Purified water Residual amount (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 slight amount Example 12. Sunscreen cream Components 10 and 12 dispersed in component 9 with a disper and a homogeneous mixed solution of components 6 to 8 are added to an aqueous component of components 1 to 5 with stirring to emulsify, and a sunscreen having the following composition A cream was produced. (Composition) (wt%) (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 Montefloss) (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 to emulsify to produce a liquid foundation having the following composition. (Composition) (% by weight) (1) Pigment (after being treated in the same manner as in Example 1), titanium oxide 6.0, sericite 9.0, iron oxide (red, yellow, black) 1. 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 Montefloss) (6) Glycerin 2.0 (7) Ethanol 15.0 (8) Purified water Residual amount (9) Perfume proper amount Examples 6 to 13 All of the cosmetics of the present invention obtained in 1. above had excellent feeling in use and had extremely good makeup retention.

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

With respect to this powder, Test Example 1 and Example 5
Evaluation was made by using the evaluation method in 1. and similar results were obtained.

[0037]

The water-repellent / oil-repellent cosmetic powder of the present invention is excellent in water-repellent / oil-repellent property, and also has excellent feeling in use, particularly smoothness. The cosmetic of the present invention containing the oil-repellent cosmetic powder contains the powder, has good water resistance, sebum resistance and oil resistance, and has an excellent effect (preservation of makeup) of preventing makeup collapse due to sebum or the like. In addition, it has good spreadability on the skin and is excellent in feeling to use, especially smoothness.

Claims (2)

[Claims] 1. 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 acid ester having [RfC _n H _2n O] _y PO (OM) _3-y (I) (In the formula, Rf represents a perfluoroalkyl group having 3 to 21 carbon atoms or a perfluorooxyalkyl group, and is linear or branched. And even if it has a single chain length,
It may have a mixed chain length. n shows the integer of 1-12 and y shows the number of 1-3. M represents hydrogen, alkali metal, ammonium or substituted ammonium. ) 2. A cosmetic containing the water-repellent / oil-repellent cosmetic powder according to claim 1.