JPH05285369A - Water and oil repellent powder and cosmetic containing the same - Google Patents

Abstract

PURPOSE:To obtain water and oil repellent powder being excellent in water and oil repellency and being good in the touch after use, especially excellent in smoothness by treating a surface of powder with N-mono (long chain) acyl basic amino acid and a compd. contg. perfluoroalkyl group having a more carbon number than a specified number. CONSTITUTION:Powder is surface treated with following chemicals a) and b) to obtain the water and oil repellent powder. Chemicals a): N-mono (long chain) acyl basic amino acid having one aliphatic acyl group of a straight or branched 8-22C chain in a molecule, chemicals b): chemicals selected from a group of compds. (b-1) to (b-4) shown hereunder, compd. (b-1): an epoxy compd. having a perfluoroalkyl group of a straight or branch >=6C chain, compd. (b-2): a silane compd. having a perfluoroalkyl group of a normal or branched >=6C chain, compd. (b-3): a titanium compd. having a perfluoroalkyl group of a straight or branched >=6C chain, compd. (b-4): a polysiloxane compd. having the same condition as the above-mentioned.

Description

Detailed Description of the Invention

[0001]

The present invention has excellent water and oil repellency,
The present invention relates to a powder for cosmetics which does not break down the makeup, has good spreadability on the skin, and has a good feeling in use, and a cosmetic containing the powder.

[0002]

BACKGROUND OF THE INVENTION Cosmetics containing powder include makeup cosmetics such as foundation, white powder, blusher, eye shadow and eyebrow, body cosmetics such as body powder and baby powder. Is commercially available. Cosmetics containing such powders for cosmetics are required to have cosmetic properties such as good spreadability on the skin, good feeling to use such as smoothness, and little disintegration due to sebum.

Therefore, in recent years, in order to prevent the makeup from being damaged by sebum or the like, the powder is treated with a fluorine compound to give
It has been proposed to impart oil repellency (JP-A-55-55).
No. 167209, JP-A No. 62-250074, JP-A No. 1-180811, and US Pat. No. 3,632,744).

However, these water-repellent / oil-repellent powders have the drawback that the smoothness during use becomes extremely worse than that before the treatment with the fluorine compound. Therefore, water repellent
It has been desired to provide a powder for cosmetics that is excellent in both oil repellency and smoothness of use.

[0005]

Under the circumstances, as a result of intensive studies, the present inventors have found that the above problems can be solved by surface-treating powder by a specific method, and the present invention has been made. completed.

That is, according to the present invention, the powder is converted into the following (a)
The present invention provides a water-repellent / oil-repellent powder obtained by surface-treating the agent and the agent (b).

Agent (a): straight or branched chain carbon number 8 to 2
N-mono long-chain acyl basic amino acid having one aliphatic acyl group of 2 in the molecule,

Agent (b): The following compounds (b-1) and (b-
2), one or more selected from the group consisting of (b-3) and (b-4), compound (b-1): a linear or branched perfluoroalkyl group having 6 or more carbon atoms, or An epoxy compound having a group in which one of the fluorine atoms of the perfluoroalkyl group is replaced with a hydrogen atom. Compound (b-2): A silane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound (b-3): a titanium compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound (b-4): a polysiloxane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom.

The powder used in the present invention (which has not been surface-treated with the agents (a) and (b); hereinafter referred to as "raw powder") is not particularly limited. However, for example, silicic acid, anhydrous silicic acid, magnesium silicate, talc, sericite, mica, kaolin, montmorillonite, clay, bentonite, titanium oxide film mica (titanium mica), bismuth oxychloride, boron nitride, zirconium oxide, oxidation Magnesium, zinc oxide, titanium oxide, low order titanium oxide, aluminum oxide,
Inorganic powder such as calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, red iron oxide, black iron oxide, yellow iron oxide, ultramarine blue, dark blue, chromium oxide, chromium hydroxide, calamine, carbon black, and composites of these. Polyamide, polyethylene, polypropylene, polystyrene, polyurethane, vinyl resin, urea resin, melamine resin, epoxy resin, polycarbonate resin, divinylbenzene / styrene copolymer, silk powder, cellulose, metal soap, tar pigments and lake pigments thereof , Organic powders such as natural pigments; 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 raw powder is not particularly limited, and powders such as flat plates, lumps, flakes, and spheres can be used regardless of the presence or absence of pores. Particularly preferred. The primary particle diameter of the raw powder is not particularly limited as long as the outer shape of the powder is retained, but from the viewpoint of usability, 0.01 to
80 μm, particularly 0.1 to 20 μm is preferable.

Examples of the (a) agent used for the surface treatment of the raw powder, that is, the basic amino acid constituting the N-mono long-chain acyl basic amino acid include, for example, α, γ-diaminobutyric acid, ornithine and lysine. Examples include arginine and histidine. 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, and these are It may have a single chain length or a mixed chain length. As the long-chain acyl group, specifically, 2-ethylhexanoyl,
Capryloyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl, isostearoyl,
Examples thereof include oleoyl, behenoyl, cocoyl, tallow fatty acid acyl, and hardened tallow fatty acid acyl. 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, but in arginine and histidine, it is limited to the amino group at the α-position.

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? -Cured tallow fatty acid acyl lysine, N? -Capryloyl lysine, N? -Lauroyl lysine, N? -Myristoyl lysine, N? -Oleoyl lysine, N? -Bebenoyl lysine, N? -Cocoyl ornithine, N? -Stearoyl ornithine, N?-. 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. Moreover, these N-mono long-chain acyl basic amino acids may be used alone or in combination of two or more kinds.

Among the agents (b) used in the present invention, (b)
Specific examples of the epoxy compound of -1) include the following compounds.

[0013]

[Chemical 1]

Specific examples of the silane compound (b-2) include the following compounds.

[0015]

[Chemical 2]

Specific examples of the titanium compound (b-3) include the following compounds.

[0017]

[Chemical 3]

Specific examples of the polysiloxane compound (b-4) include the following compounds.

[0019]

[Chemical 4]

In the surface treatment of the raw powder for obtaining the water-repellent / oil-repellent powder of the present invention, the agents (a) and (b) may be used at the same time. First, the agent (a) is used. After the surface treatment of the raw powder, it may be surface treated with the agent (b),
The surface treatment may be performed in the reverse order. this house,
The inner layer of the water-repellent / oil-repellent powder obtained by surface-treating with the agent (a) and then with the agent (b) is (a)
When the agent and the outer layer are the agent (b), the feeling of use is good and it is particularly preferable.

The amount of the agent (a) treated with respect to the raw powder is preferably 0.05 to 20% by weight, more preferably 0.5 to 20% by weight.
It is 15% by weight. If it is less than 0.05% by weight, the surface treatment effect is not sufficient, and if it exceeds 20% by weight, the treatment effect does not improve so much, so that there is no advantage in terms of economy. The treatment amount of the agent (b) with respect to the raw powder is 0.01 to 30% by weight, more preferably 0.5.
~ 15% by weight. If it is less than 0.01% by weight, sufficient water resistance and oil resistance cannot be obtained, and if it exceeds 30% by weight, the feeling of use is unfavorable.

The surface treatment method of the raw powder with the agent (a) is as follows:
There is no particular limitation, and either a known dry method by direct treatment or a wet method using an appropriate solvent can be used.
Among them, the dry method is a simple and effective method,
According to this method, the surface of the powder can be easily (a) mixed by stirring the agent (a) and the raw powder or by mixing the agent (a) and the raw powder and then co-milling. ) Agent.

In the case of the above-mentioned wet method, the agent (a) is hardly dissolved in water in the vicinity of neutrality. Therefore, after dissolving the soluble alkali metal salt of the agent (a) in water and bringing it into contact with the powder, The surface of the powder can be treated by adding an aqueous solution of an acid and neutralizing to deposit and deposit the agent (a) on the powder, removing the salt generated by the neutralization by washing with water, and drying. Examples of the acid used here include hydrochloric acid and the like. The particle size of the agent (a) deposited on the powder can be controlled by changing the reaction conditions such as the acid addition time.

The method of surface-treating the raw powder with the agent (b) or the powder surface-treated with the agent (a) is not particularly limited, and either a dry method or a wet method can be used.
The dry method is performed by mixing the raw powder or the powder surface-treated with the agent (a) and the agent (b) in a mixing and stirring device. In the case of the wet method, the raw powder or the powder surface-treated with the agent (a) is placed in a mixing and stirring apparatus, while the agent (b) is charged with an appropriate solvent [eg, water, ethanol, isopropyl alcohol, chloroform, Freon R113 and a mixed solvent thereof and the like], and the mixture is added by spraying or dropping and uniformly dispersed by mixing and stirring, and then dried at room temperature or after heating. However, when the number of carbon atoms of the perfluoroalkyl group in the agent (b) is 8 or more, the fluidity of the compound is remarkably reduced. Therefore, mixing is performed in a warmed state or an ether solvent such as diethyl ether or diisopropyl ether or It is preferable to dry at room temperature or after heating using a mixed solvent system of a fluorine-based solvent such as Freon R113 or hexafluoromethaxylene and an alcohol such as methanol, ethanol, or isopropanol.

In carrying out the surface treatment with such agents (a) and (b), for example, a Henschel mixer,
A mixing and stirring device such as a vibrating ball mill, a rotary ball mill, a super mixer or the like can be used.

The water / oil repellent powder of the present invention thus obtained exhibits excellent water / oil repellency and can be suitably used as a blending component of cosmetics. The amount of the water-repellent / oil-repellent powder of the present invention incorporated into the cosmetic of the present invention is not particularly limited, but it is usually preferably 0.1 to 99% by weight.

In addition to the water-repellent / oil-repellent powder of the present invention, the cosmetics of the present invention may contain, if necessary, components that are commonly used in ordinary cosmetics. For example, solid / semi-solid oil components such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acid, higher alcohol; squalane, liquid paraffin, ester oil, diglyceride, triglyceride,
Fluid oil such as silicone oil; perfluoropolyether,
Fluorine-based oil agents such as perfluorodecalin and perfluorooctane; water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, silicones, metal soaps, lecithin,
Amino acids, collagen, polymers, inorganic and organic pigments surface-treated with fluorine compounds, colorants such as tar dyes, natural dyes, ethanol, preservatives, antioxidants, dyes, thickeners, pH adjusters, fragrances, An ultraviolet absorber, a moisturizer, a blood circulation promoter, a cooling sensation agent, an antiperspirant, a bactericide, a skin activator, water and the like can be added within a qualitative and quantitative range that does not impair the effects of the present invention. The cosmetic of the present invention can be produced by a usual method, and is a foundation for make-up cosmetics such as powder foundation, cream foundation, oil foundation, dual-purpose foundation, white powder, eye shadow, blusher, milky lotion, cream and the like. It can be applied to body cosmetics such as cosmetics, body powder and baby powder.

[0028]

EXAMPLES The present invention will now be described in more detail by way of examples, which should not be construed as limiting the invention.

Example 1 100 g of sericite and 5.0 g of N-lauroyl lysine were placed in a Henschel mixer and mixed for 10 minutes to perform surface treatment of the above sericite to obtain 105 g of N-lauroyl lysine-treated sericite. .. Next, 105 g of the obtained N-lauroyl lysine-treated sericite was placed in a round bottom flask, and a solution of 5.0 g of the following diheptadecafluoroundecene oxide dissolved in 500 g of isopropyl alcohol was added thereto, and the mixture was added at 60 ° C. Mix for 4 hours. Then, isopropyl alcohol was distilled off under reduced pressure, and the residue was dried to obtain 110 g of the desired water / oil repellent powder.

[0030]

[Chemical 5]

Example 2 30% ethanol containing 3.0 g of sodium hydroxide dissolved therein
5.0 ml of N-lauroyl lysine was added to 500 ml of the aqueous solution.
Eh, dissolve at 60 ° C and add 100 g of sericite.
It was While mixing, add 1N-hydrochloric acid 75 ml to neutralize,
Precipitate N-lauroyl lysine on powder and mix for 30 minutes
After removing water-soluble salt by filtering and washing with water,
105 g of dried and N-lauroyl lysine treated sericite
Got Next, the obtained N-lauroyl lysine-treated ceric
Place 105 g of site in a round bottom flask and place it in a heptade
Cafluorodecyltriethoxysilane [(C₈F₁₇C₂H_Four) Si
(OC ₂H_Five)₃] 5.0 g was added together with 500 g of ethanol,
Mix for 1 hour at 60 ° C. Then isopropyl alco
Of water and oil repellent powder 1
10 g were obtained.

Example 3 5.0 g of N-lauroyl lysine was added to 2500 g of ethanol.
In addition to the above, 2.5 g of calcium chloride was further added and stirred to dissolve N-lauroyl lysine as a Ca salt. 100 g of mica was added thereto and mixed at room temperature for 2 hours. Next, this was filtered, washed with water to remove calcium chloride, and then dried to obtain 102 g of N-lauroyl lysine treated mica. Then, the N-obtained in this way
102 g of lauroyl lysine-treated mica was placed in a round-bottomed flask containing zinc phosphate sodium salt-treated sericite, and triisopropoxytitanium salt of diheptadecafluorodecylphosphate [[(C ₈ F ₁₇ C ₂ H ₄ O) ₂ was added thereto. P (= O) -O-] Ti [(OCH (C
H _{3) 2]]} 5g was added with isopropyl alcohol 500 g, was mixed 1 hour at 60 ° C.. Then, the isopropyl alcohol was distilled off under reduced pressure, and the residue was dried to obtain 105 g of the desired water / oil repellent powder.

Example 4 Example 4 was repeated except that the following polysiloxane compound having a perfluoroalkyl group was used instead of diheptadecafluoroundecene oxide [(C ₈ F ₁₇ CH ₂ CHCH ₂ )]. The treatment was carried out under substantially the same conditions as in Example 1 to obtain the desired water / oil repellent powder.

[0034]

[Chemical 6]

Example 5 Treatment was carried out under substantially the same conditions as in Example 1 except that barium sulfate (made by Sakai Chemical Industry Co., Ltd.) was used in place of sericite. A powder was obtained.

Comparative Example 1 100 g of sericite and 5.0 g of N-lauroyl lysine were placed in a Henschel mixer and mixed for 10 minutes to perform surface treatment of the above sericite to obtain 105 g of N-lauroyl lysine-treated sericite. ..

Comparative Example 2 In a 1-liter round bottom flask (or kneader), 5.0 g of diheptadecafluorodecylphosphoric acid (same as in Example 1) was dissolved in 500 g of isopropyl alcohol, and 100 g of sericite was added to the solution. After mixing at 60 ° C. for 4 hours, isopropyl alcohol was distilled off under reduced pressure and dried to obtain 105 g of comparative powder.

Comparative Example 3 100 g of sericite was placed in a round bottom flask, and heptadecafluorodecyltriethoxysilane [(C ₈ F ₁₇ C
5.0 g of ₂ H ₄ ) Si (OC ₂ H ₅ ) ₃ ] was added together with 500 g of ethanol and mixed at 60 ° C. for 1 hour. Then, the isopropyl alcohol was distilled off under reduced pressure and dried to obtain the target comparative powder 10
2 g was obtained.

Comparative Example 4 In Comparative Example 3, instead of heptadecafluorodecyltriethoxysilane [(C ₈ F ₁₇ C ₂ H ₄ ) Si (OC ₂ H ₅ ) ₃ ], triheptadecafluorodecylphosphoric acid was used. Substantially the same as Comparative Example 3 except that an isopropoxy titanium salt [[(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) -O-] Ti [OCH (CH ₃ ) ₂ ]] was used. It processed on condition and the target comparative powder was obtained.

Comparative Example 5 Comparative Example 3 except that a polysiloxane compound having a perfluoroalkyl group was used in place of diheptadecafluoroundecene oxide [(C ₈ F ₁₇ CH ₂ CHCH ₂ )] in Comparative Example 2. Was treated under substantially the same conditions as above to obtain a comparative powder.

Comparative Example 6 Comparative powder was obtained by treating under the same conditions as in Comparative Example 1 except that barium sulfate (made by Sakai Chemical Industry) was used in place of sericite.

Test Example 1 Each of the powders obtained in Examples 1 to 5 and Comparative Examples 1 to 6 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, water became cloudy after 1 minute, but powder floating on the water was also seen. 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.

[0045]

[Table 1]

From Table 1 above, the water / oil repellent powder of the present invention is any of N-mono long-chain acyl basic amino acids or compounds having at least one perfluoroalkyl group having 6 or more carbon atoms in the molecule. It can be seen that the water repellency, the oil repellency, and the feel are excellent as compared with the case where the treatment is performed by using singly.

Example 6 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.

[0048]

[Table 2]

(Evaluation Method) The following products were subjected to a sensory evaluation of the makeup retention and feel of use of the following products by the following criteria. ◯: Good for 8 or more △: Good for 4 to 7 ×: Good for less than 4

[0050]

[Table 3]

As is apparent from Table 3 above, the product of the present invention was a pressed face powder which was superior to the comparative product in cosmetic durability and feeling in use.

Example 7 Powder Foundation A powder foundation having the following composition was produced in the same manner as in Example 6. (Composition) (% by weight) (1) Water-repellent / oil-repellent cosmetic powder (after being treated in the same manner as in Example 2, 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 (FOMBLIN HC-04, Montefloss Co., Ltd.) 10.0 (3) Dimethyl poly Siloxane 2.0 (4) Preservative 0.2 (5) Perfume 0.2

Example 8 Blusher A blusher having the following composition was produced in the same manner as in Example 6. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (after being treated in the same manner as in Example 2, mixed later) -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) Dimethylpolysiloxane 7.5 (4) Preservative 0.05 (5) Perfume 0.05

Example 9 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 6, a powder eye shadow having the following composition was produced. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (those treated in the same manner as in Example 2 are 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 10 Amphoteric powder foundation An amphoteric powder foundation having the following composition was produced in the same manner as in Example 9. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (after being treated in the same manner as in Example 2), 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) Isopropyl myristate 1.0 (7) Preservative 1.5 (8) Perfume 0.1

Example 11 Loose Type Face Powder Powder components were mixed and pulverized, transferred to a Henschel mixer, and an oil agent and a fragrance were added and mixed to obtain a uniform mixture.
A loose type face powder having the following composition was produced through a sieve. (Composition) (wt%) (1) Treated powder of Example 5 50.0 (2) Talc balance (3) Red iron oxide 0.1 (4) Liquid paraffin 1.0 (5) Perfume 0.1

Example 12 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 (FOMBLIN HC-04, manufactured by Montefloss) 10.0 (3) Dimethylpolysiloxane / polyoxyalkylene co-weight Combined 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 13 Sunscreen Cream Components 10 and 12 dispersed in component 9 with a disper and a homogeneous mixed solution of components 6 to 8 were added to the aqueous components 1 to 5 with stirring to emulsify. A sunscreen cream having the following composition 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 (FOMBLIN HC -04, manufactured by Montefloss) 35.0 (10) Titanium oxide (treated in the same manner as in Example 2) 1.0 (11) Talc (treated in the same manner as in Example 2) 5.0 ( 12) Octyl methoxycinnamate 2.0

Example 14 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 (mixed after being treated in the same manner as in Example 2) -Titanium oxide 6.0-Cerisite 9.0-Iron oxide (red, yellow, black) 2 (2) Octamethylcyclotetrasiloxane 20.0 (3) Dimethylpolysiloxane (KF-96A, 6cs, manufactured by Shin-Etsu Chemical Co., Ltd.) 2.0 (4) Dimethylpolysiloxane-polyoxyalkylene copolymer 1.0 ( 5) Perfluoropolyether (FOMBLIN HC-04, manufactured by Montefloss) 10.0 (6) Glycerin 2.0 (7) Ethanol 15.0 (8) Purified water Residual amount (9) Perfume proper amount

Each of the cosmetics of the present invention obtained in Examples 7 to 14 had an excellent feeling in use and a very long lasting makeup.

[0061]

The water- and oil-repellent cosmetic powder of the present invention is
It has excellent water and oil repellency and also has excellent feeling in use, especially smoothness, and the cosmetic of the present invention containing the powder for water and oil repellent cosmetics of the present invention is water resistant. It has excellent sebum resistance and oil resistance, is excellent in the effect of preventing makeup from being damaged by sebum and the like (makeup lasting), has good spreadability on the skin, and is excellent in feeling in use, particularly in smoothness.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C09K 3/18 102 8318-4H 104 8318-4H

Claims (2)

[Claims] 1. A water-repellent / oil-repellent powder obtained by surface-treating a powder with the following agents (a) and (b). (A) Agent: N-mono long-chain acyl basic amino acid having one linear or branched aliphatic acyl group having 8 to 22 carbon atoms in the molecule, (b) Agent: the following compound (b-1) , (B-2), (b-
1) or 2) selected from the group consisting of 3) and (b-4)
Or more, compound (b-1): an epoxy compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound (b-2): A silane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound (b-3): a titanium compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound (b-4): a polysiloxane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. 2. A cosmetic containing the water / oil repellent powder according to claim 1.