JP3532738B2 - Water-repellent powder and powder cosmetic containing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a water-repellent treated powder which is smooth and spreads well, has an excellent moisturizing effect and is not irritating to the skin, and a powder cosmetic containing the same and having an excellent feeling in use. .

[0002]

2. Description of the Related Art Conventionally, in powder cosmetics such as foundations and eye shadows, metal soap is added to the cosmetics in order to prevent makeup from being damaged by perspiration of the skin and to improve makeup retention. For example, a powder surface-treated with soap or silicone was used.

However, addition of metal soap to cosmetics not only does not provide sufficient water repellency, but also causes problems such as skin irritation due to metal soap and dull colors. It was Further, although the water repellency and the like are slightly improved in the powder surface-treated with the metal soap, it is not sufficient, and the spread and the feel are not satisfactory. Furthermore, although the powder surface-treated with silicone is excellent in terms of water repellency and spreadability,
Since the adhesiveness was poor and the powder itself did not have a wet feeling, the skin was dry and was liable to be worn down.

[0004]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to have a smooth and smooth spread and an excellent moisture effect.
Moreover, it is intended to provide a water-repellent treated powder which does not cause skin irritation, and a powder cosmetic containing the powder and having an excellent feeling in use.

Under the circumstances, as a result of intensive studies by the present inventors, surface treatment of powder with three components of sphingosine analogs, sterols and fatty acids gives a smooth and smooth moisturizing effect. The inventors have found that a water-repellent treated powder that is excellent and does not cause skin irritation can be obtained, and that a powder cosmetic having excellent water repellency and a feeling of use can be obtained by using the powder, and completed the present invention.

That is, the present invention provides the following component (A),
(B) and (C): (A) Ceramide, sugar ceramide, sphingomyelin, sphingolipid, glycosphingolipid and the following general formula (1).
A powder of a sphingosine analog selected from the following amide derivatives, (B) sterols selected from cholesterol, sitosterol and ergosterol, and (C) a saturated or unsaturated fatty acid having 10 to 20 carbon atoms. The present invention provides a water-repellent treated powder obtained by surface treatment.

The present invention also provides a powder cosmetic containing the water-repellent treated powder.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the water-repellent treated powder of the present invention,
Any inorganic or organic powder can be used as the mother powder to be treated. For example, silicic acid, silicic acid anhydride,
Magnesium silicate, talc, kaolin, mica, bentonite, titanium-coated mica, red iron oxide, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, magnesium carbonate,
Inorganic powders such as iron oxide, ultramarine blue, dark blue, chromium oxide, chromium hydroxide, calamine, zeolite, carbon black; polyamide, polyester, polyethylene, polypropylene, polystyrene, polyurethane, vinyl resin, urea resin, phenol resin, fluorine resin, silicon Resin, acrylic acid resin, melamine resin, epoxy resin, polycarbonate resin, various resin powders such as divinylbenzene / styrene copolymers or copolymer resin powders composed of two or more thereof; celluloid, acetyl cellulose, polysaccharides, Organic powder of protein, hard protein, etc .; Red No. 201,
Red No. 202, Red No. 204, Red No. 205, Red No. 22
0, red 226, red 228, red 405, orange 203, orange 204, yellow 204, yellow 401
No. 3, Blue No. 404, and other organic pigment powders; Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red 230
No., Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3
No. 1, Blue No. 1, etc., pigment powders composed of zirconium, barium, aluminum lake, etc .; metal soaps such as magnesium stearate, calcium stearate, zinc laurate, zinc palmitate, etc.

These mother powders have an average particle size of 0.1 to 5
It is preferably 0 μm, particularly 1 to 30 μm from the viewpoint of feeling in use.

On the other hand, as the sphingosine analog of the component (A) among the three components used for treating these powders, any natural or synthetic sphingosine analog can be used. For example, sphingosine derivatives such as ceramide, sugar ceramide, sphingomyelin, sphingolipid, and glycosphingolipid can be used as the natural sphingosine analog. Such a natural sphingosine derivative is produced by extracting it from animal tissue, and is commercially available as so-called bovine brain ceramide. The components of these extracts are N-
(Ω-acyloxy) acyl sphingosine, N-acyl sphingosine, N-acyl phytosphingosine,
N- (α-hydroxy) acyl sphingosine, N-
(Ω- (α-hydroxy) acyloxy) acyl sphingosine, N- (α-hydroxy) acyl phytosphingosine and the like are known (Journal of Lipid Researc
h, 24 , p759 (1983), Japanese Examined Patent Publication 6-57651
Issue). Further, a derivative obtained by chemically modifying natural sphingosine can also be used (Japanese Patent Publication No. 1-45442 and Japanese Patent Publication No.
504264, WO932281, etc.).

A synthetic sphingosine analog is an amide derivative having a structure similar to that of a natural sphingosine derivative, and is represented by the following formula (1) described in JP-A-62-128048.

[0012]

[Chemical 1]

(In the formula, R ¹ represents a linear or branched saturated or unsaturated alkyl group having 10 to 26 carbon atoms, and R ² represents a linear or branched saturated or unsaturated alkyl group having 9 to 25 carbon atoms. A ceramide-like compound represented by a saturated alkyl group, wherein X and Y each represent a hydrogen atom or a saccharide residue). In particular, N- (3-hexadecyloxy-2-hydroxypropyl) -N-2-hydroxyethyl decanamide (C ₃₁ H
₆₃ NO ₄ ), N- (3-hexadecyloxy-2-hydroxypropyl) -N-2-hydroxyethylhexadecanamide (C ₃₇ H ₇₅ NO ₄ ), N- (3-tetradecyloxy-2- Hydroxypropyl) -N-2-hydroxyethyl decanamide (C ₂₉ H ₅₉ NO ₄ ) can be preferably used.

These natural or synthetic sphingosine analogs may be used either individually or in combination of two or more.

As the sphingosine analog of the component (A), ceramide, sugar ceramide, sphingomyelin,
Natural sphingosine derivatives selected from sphingolipids and glycosphingolipids; N- (3-hexadecyloxy-
2-hydroxypropyl) -N-2-hydroxyethyldecanamid, N- (3-hexadecyloxy-2-hydroxypropyl) -N-2-hydroxyethylhexadecanamide and N- (3-tetradecyloxy An amide derivative selected from 2-hydroxypropyl) -N-2-hydroxyethyl decanamide is preferred.

Examples of the sterols as the component (B) include cholesterol, cholesteryl isostearate, provitamin D ₃ , campesterol, stegmasteranol, stegmasterol, 5-dihydrocholesterol, α-spinasterol, paristerol, cryonasterol, γ-sitosterol, stegmastenol, salgasterol, apenasterol, ergostanol, sitosterol, corvisterol, chondrilasterol, polyferrasterol, haliclonasterol, neosvongosterol, fucosterol, aptostanol, ergostadienol, ergo Sterols, 22-dihydroergosterol, brassicasterol, 24-methylenecholesterol, 5-dihydroergosterol, decich Droergosterol, fungisterol, cholestanol, coprostanol, dimosterol, 7-hetcholesterol, latosterol, 22-dehydrocholesterol, β-sitosterol, cholestatriene-3β-ol, coprostanol, cholestanol, ergosterol, 7-dehydrocholesterol, 24-dehydrocholestane-3-
β-ol, equilenin, equilin, estrone, 17
β-estradiol, androst-4-ene-3
β, 17β-diol, dehydroeviandrosterone, cholesteryl alkenyl succinate
4989). These sterols can be used alone or in combination of two or more.

As the sterols as the component (B), cholesterol, sitosterol and ergosterol are particularly preferable.

Examples of the fatty acid as the component (C) include linoleic acid, γ-linolenic acid, arachidonic acid, α-linolenic acid, isostearic acid, undecylenic acid, stearic acid, palmitic acid, coconut oil fatty acid and lauric acid. You can These fatty acids can be used alone or in combination of two or more.

The fatty acid as the component (C) has 10 to 20 carbon atoms.
Saturated or unsaturated fatty acids of 15 to 2 carbon atoms
Zero saturated or unsaturated fatty acids are preferred.

When the powder is treated with the three components (A), (B) and (C), the ratio of the three components is not particularly limited, but the weight ratio is (A) :( B) :( C) = 20-8
0:10 to 40:20 to 80, especially 30 to 70:15
It is preferably 35:30 to 70. The ratio of the components (A), (B) and (C) to the mother powder can be appropriately determined according to the surface condition of the mother powder, etc. It is preferable that the total amount of the three components is 0.01 to 200 parts by weight, particularly 5 to 100 parts by weight.

The method for treating the powder is not particularly limited, and the treatment can be performed according to a usual method. For example, three components of (A) sphingosine analog, (B) sterols and (C) fatty acid are heated and dissolved in an organic solvent,
Mother powder is added thereto, and the mixture is sufficiently stirred and refluxed. Then, the solvent is cooled, filtered, washed, and dried to obtain the water-repellent treated powder of the present invention. As the organic solvent used here, for example, methanol, ethanol, propanol, butanol, isopropanol, hexane, heptane, acetonitrile, acetone,
Examples include chloroform, ethyl acetate, petroleum ether, tetrahydrofuran and the like.

As another method, for example, three components of (A) sphingosine analog, (B) sterol and (C) fatty acid are added to a highly soluble solvent such as diethyl ether, acetone, chloroform, benzene and the like. Dissolve in hot water,
The mother powder is added thereto, and the mixture is sufficiently stirred while being heated and dissolved again. A solvent having a small solubility such as hexane was added little by little while stirring, and when the solution became cloudy, the addition of the solvent was stopped, and the mixture was heated once and allowed to cool, and after filtration and washing,
The water-repellent treated powder of the present invention can be obtained by drying.

The water-repellent treated powder of the present invention thus obtained is particularly suitable as a blending component for cosmetics. The blending amount of the water repellent treated powder in the powder cosmetic is not particularly limited, but is 5 to 90% by weight, particularly 10 to 8% by weight in the total composition.
A blending amount of 0% by weight is preferred because it is smooth and spreads well, and is moist and excellent in a moisturizing effect.

In addition to the above-mentioned water-repellent treated powder, the powder cosmetics of the present invention include components used in ordinary cosmetics such as mica, talc, sericite, kaolin, calcium carbonate, aluminum oxide and barium sulfate. Extender pigments such as;
Color pigments such as red iron oxide, yellow iron oxide, black iron oxide, chromium oxide, carbon black; white pigments such as zinc oxide and titanium dioxide; pearl pigments such as mica titanium and fish scale foil; red 2
Organic pigments such as No. 02, No. 226, and No. 4 yellow aluminum lake; Organic powders such as nylon powder; Water repellent treatments commonly used with these pigments (powder), such as silicone oil, fatty acid metal salts, alkyl phosphorus Acids, alkali metal salts or amine salts of alkylphosphoric acids, N-mono long-chain (C8-22) aliphatic acyl basic amino acids, fluorine compounds having a perfluoroalkyl group, amino acids, lecithin, silica-alumina, etc. Surface-treated; hydrocarbons such as solid or liquid paraffin, crystal oil, ceresin, squalane, ozokerite, and montan wax; vegetable oils such as olive, jiro, carnauba wax, beeswax, lanolin, and gallow; animal fats, waxes; stearin Acid, palmitic acid, oleic acid, glyceride monostearic acid Higher fatty acids (salts) such as tellurium, glycerin distearate, glycerin monooleate, isopropyl myristate, isopropyl stearate and butyl stearate; and their esters; dextrin fatty acid ester; dimethyl polysiloxane, methylphenyl poly Silicone oils such as siloxane, octamethylcyclotetrasiloxane, decamethylcyclopentanesiloxane;
Water; alcohols such as ethanol, isopropanol, cetanol, stearyl alcohol, palmityl alcohol, hexyldecyl alcohol; polyhydric alcohols such as glycol, glycerin or sorbitol as a moisturizer; surfactants, thickeners, preservatives, Antioxidants, ultraviolet absorbers, chemicals, fragrances and the like can be appropriately added within a range that does not impair the effects of the present invention.

The powder cosmetic of the present invention can be produced according to a usual method, and is applied to a desired dosage form, for example, makeup cosmetics such as powder foundation, powder powder, eye shadow, eyebrow, and blusher. can do.

[0026]

The water-repellent treated powder of the present invention is smooth and spreads well, has a moisturizing and excellent moisturizing effect, has no skin irritation, and further, a powder cosmetic containing the powder is It has excellent usability.

[0027]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Example 1 Synthetic ceramide (in the general formula (1), R ¹ = C ₁₆
H ₃₃ , R ² = C ₁₅ H ₃₁ , X = H, Y = H) 40
3 g of cholesterol, 20 g of cholesterol and 40 g of stearic acid
A total of 100 g of the components was added to 5 L of hexane, heated to 60 ° C., and dissolved by stirring. To this, 1 kg of mica was added and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was carried out, followed by drying under reduced pressure to obtain a water repellent treated mica.

Example 2 Synthetic ceramide (in the general formula (1), R ¹ = C ₁₆
H ₃₃ , R ² = C ₁₅ H ₃₁ , X = H, Y = H) 60
g, 20 g of sitosterol and 20 g of myristic acid 3
A total of 100 g of the components was added to 5 L of methanol, heated to 60 ° C., and dissolved by stirring. Add 1kg of talc to this and 4
Reflux for hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was carried out and drying under reduced pressure was performed to obtain water-repellent treated talc.

Example 3 Bovine brain ceramide 70 g, sitosterol 10 g and palmitic acid 20 g
In addition to L, the mixture was heated to 60 ° C. and dissolved with stirring. To this, 1 kg of sericite was added and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was performed and drying under reduced pressure was performed to obtain water-repellent treated sericite.

Example 4 50 g of bovine brain ceramide, 25 g of sitosterol and 25 g of linoleic acid, a total of 100 g, were added to 5 L of ethanol, and the mixture was heated to 60 ° C. and dissolved with stirring. To this, 1 kg of titanium oxide was added and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was performed and drying under reduced pressure was performed to obtain water-repellent treated titanium oxide.

Example 5 1 g of 40 g of 1-β-D-glucosylsphingosine, 20 g of ergosterol and 40 g of undecylenic acid, totaling 100 g, was added to 5 L of acetone and heated to 60 ° C.
It was dissolved by stirring. 1 kg of red iron oxide was added to this and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was carried out, followed by drying under reduced pressure to obtain water-repellent red iron oxide.

Example 6 50 g of 1-β-D-glucosylsphingosine, 25 g of ergosterol and 25 g of isostearic acid, 100 g in total of 3 components, were added to 5 L of tetrahydrofuran, and 60 g was added.
The mixture was heated to ° C and dissolved by stirring. To this, 1 kg of yellow iron oxide was added and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was performed and drying under reduced pressure was performed to obtain water repellent yellow iron oxide.

Example 7 Three-component total of 10 g of 1-β-D-glucosylsphingosine, 20 g of cholesterol and 10 g of linoleic acid 10 in total
0 g was added to 5 L of heptane, heated to 60 ° C., and dissolved by stirring. To this, 1 kg of black iron oxide was added and refluxed for 4 hours. After the operation was completed, the mixture was allowed to cool and then ice-cooled for 3 hours while continuing stirring. Next, suction filtration was performed and drying under reduced pressure was performed to obtain water-repellent black iron oxide.

The water-repellent treated powders of the present invention obtained in Examples 1 to 7 all have excellent water repellency, are extremely smooth and spread well, are moist, and are dry even on skin. It had no feeling of touch, had excellent feel, and had no skin irritation, and was ideal as a raw material for powder cosmetics.

Comparative Example 1 1 kg of mica was added to 5 L of water under vigorous stirring and uniformly dispersed. To this, 10 g of potassium myristate was added and completely dissolved. Next, add 100 ml of 20% zinc sulfate to 2
It was added dropwise over 0 minutes, and stirring was continued for another 20 minutes.
After completion of the reaction, suction filtration was performed, and the mixture was finely crushed and dried with hot air at 105 ° C for 10 hours. The obtained mica treated with metal soap had good adhesion, but had a slight squeak and poor spreadability. The water repellency was also slightly inferior.

Comparative Example 2 15 g of dimethylhydrogenpolysiloxane was completely dissolved in 150 g of hexane, 500 g of mica was added and mixed for 10 minutes with a Henschel mixer. This was air-dried at room temperature to completely remove hexane, and then baked at 120 ° C. for 3 hours. The obtained silicone-treated mica had a slight peculiar odor, and was excellent in water repellency and fluidity, but the powder had a very dry feel and poor adhesion, and it became bulky when applied to the skin.

Comparative Example 3 100 g of sericite was placed in a 1-liter round bottom flask (or kneader), and 500 ml of ion-exchanged water was added.
Perfluoroalkyl phosphate ester dioxyethylamine salt [R _f C ₂ H ₄ O] _m PO (OM) _{3-m represented by the following} formula (wherein R _f = C6-18, average carbon perfluoroalkyl group number is 9, M = -H · NH ( CH 2 C
33 g of an approximately 17.5% aqueous solution of H ₂ OH) ₂ , 2>m> 1) was added, and the mixture was stirred at 40 ° C. Next, 40 mL of 1N hydrochloric acid was added to lower the pH of the aqueous solution to 3 or less, and perfluoroalkylphosphoric acid was deposited on the powder surface, which was then filtered, washed with water and dried to obtain 105 g of a fluorine compound-treated powder. It was

Comparative Example 4 150 g of sericite was placed in a 1-liter round bottom flask (or kneader), and diheptadecafluorodecylphosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ PO (OH)] was added thereto. 7.5 g
Dissolved in 1500 g of isopropyl alcohol by heating (50
) Was added, and isopropyl alcohol was distilled off under reduced pressure at 60 ° C., followed by drying to obtain 155 g of a fluorine compound-treated powder.

Test Example 1 Ten specialized panelists conducted sensory evaluations on the spread, stickiness, familiarity and moist feeling when the treated powder was applied to the forearm, and judged according to the following criteria. The results are shown in Table 1. (Judgment Criteria) ◎: 7 or more people answered that they were good. ○: 4 or more and less than 7 answered that they were good. Δ: 2 or more and less than 4 answered as good. ×: 1 person or less answered that it was good.

[0041]

[Table 1]

Example 8, Comparative Examples 3 and 4 A powder foundation having the composition shown in Table 2 was produced,
In the same manner as in Test Example 1, the spread, stickiness, familiarity and moist feeling of the foundation were evaluated. The results are shown in Table 2. (Production method) The powder components were roughly mixed and pulverized using an atomizer. This was transferred to a high speed blender, and components (22) to (26) were heated and mixed to make uniform, and further mixed to make uniform. This was treated with an atomizer, the particle size was made uniform through a sieve, and then compression molding was carried out in a gold plate to obtain a target powder foundation.

[0043]

[Table 2]

As is clear from the results of Table 2, the powder foundation of the present invention was excellent in usability. The water repellency was also good.

Example 9 (Powder Foundation) A powder foundation having the composition shown below was produced by the following method.

[0046]

[Table 3] (Components) (wt%) (1) Three-component treated powder ^{* 4} Titanium oxide 10.0 Sericite 20.0 Mica balance (2) Fluorine treated powder ^{* 5} Kaolin 5.0 Red iron oxide 0.8 Yellow iron oxide 2.5 Black iron oxide 0.1 (3) Liquid paraffin 8.0 (4) Beeswax 2.0 (5) Preservative 0.2 (6) Fragrance suitable amount total 100.0 * 4: Example 1 Powder treated in the same manner as. * 5: Powder treated in the same manner as Comparative Example 3.

(Production method) Components (1) and (2) are mixed,
It was crushed through a crusher. This was transferred to a high-speed blender, and components (3) to (6) were heated and mixed to make uniform, and further mixed to make uniform. This was treated with a crusher, and the particle size was made uniform through a sieve, followed by compression molding in a gold plate to obtain the desired powder foundation.

Example 10 (dual-use powder foundation) A dual-use powder foundation having the composition shown below was produced by the following method.

[0049]

[Table 4] (Components) (wt%) (1) Three-component treated powder ^{* 6} Titanium oxide 10.0 Mica titanium 3.5 Kaolin 5.0 Talc 4.0 Aluminum oxide 10.0 Barium sulfate 5.0 Bengal 0.8 Yellow iron oxide 2.5 Black iron oxide 0.1 (2) Silicone treated powder ^{* 7} Sericite 20.0 Mica balance (3) Liquid paraffin 4.0 (4) Squalane 2.0 (5) Methyl Phenylpolysiloxane (100 cSt) 4.0 (6) Preservative 0.2 (7) Perfume Suitable amount Total 100.0 * 6: Powder treated in the same manner as in Example 2. * 7: Powder treated in the same manner as Comparative Example 2.

(Production method) Components (1) and (2) are mixed,
It was crushed through a crusher. This was transferred to a high-speed blender, and components (3) to (7) which had been heated and mixed to make uniform were added and further mixed to make uniform. This was treated with a crusher, and the particle size was made uniform through a sieve, and then compression-molded in a gold plate to obtain the intended dual-purpose powder foundation.

Example 11 (Powder powder) A powder powder having the following composition was produced by the following method.

[0052]

[Table 5] (Components) (% by weight) (1) 3-component treated powder ^{* 8} Talc balance mica 20.0 (2) Silicone treated powder ^{* 9} Red iron oxide 0.4 Yellow iron oxide 0.5 Black iron oxide 0 .1 (3) Magnesium stearate 5.0 (4) Fragrance suitable amount total 100.0 * 8: Powder treated in the same manner as in Example 3. * 9: Powder treated in the same manner as Comparative Example 2.

(Manufacturing method) Components (1) to (3) are mixed by stirring with a blender, and component (4) is sprayed onto this, and further stirred uniformly. This was passed through a crusher for crushing and then passed through a sieve to obtain the intended powder syrup.

Example 12 (bright red) A cheek red composition having the composition shown below was produced by the following method.

[0055]

[Table 6] (Components) (wt%) (1) Three-component treated powder ^{* 10} Titanium oxide 10.0 Mica 13.0 Kaolin balance (2) Red No. 202 2.5 (3) Fluorine treated powder ^{* 11} Red iron oxide 0.8 Yellow iron oxide 4.0 Black iron oxide 0.2 (4) Dimethylpolysiloxane (6cSt) 10.0 (5) Liquid paraffin 2.0 (6) Preservative 0.1 (7) Fragrance Total amount 100.0 * 10: Powder treated in the same manner as in Example 4. * 11: Powder treated in the same manner as in Comparative Example 4.

(Production method) Components (1) to (3) were mixed and pulverized through a pulverizer. Transfer this to a high speed blender,
Components (3) to (7) were heated and mixed to make uniform, and the mixture was further mixed to make uniform. This was processed with a crusher, passed through a sieve to make the particle size uniform, and then compression-molded in a gold dish to obtain the desired cheek rouge.

Each of the powder cosmetics obtained in Examples 9 to 12 was excellent in water repellency, had good spreadability and stickiness, and had a moist feeling, and had a good feeling in use.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-6-9359 (JP, A) JP-A-8-505624 (JP, A) Patent 3414008 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (4)

(57) [Claims] 1. The following components (A), (B) and (C): (A) ceramide, sugar ceramide, sphingomyelin, sphingolipid, glycosphingolipid and general formula (1): (In the formula, R ¹ represents a linear or branched saturated or unsaturated alkyl group having 10 to 26 carbon atoms, and R ² represents 9 to ² carbon atoms.
5 represents a straight chain or branched chain saturated or unsaturated alkyl group, and X and Y each represent a hydrogen atom or a saccharide residue)
A powder of a sphingosine analog selected from the following amide derivatives, (B) sterols selected from cholesterol, sitosterol and ergosterol, and (C) a saturated or unsaturated fatty acid having 10 to 20 carbon atoms. Water repellent powder obtained by surface treatment. 2. Component (A) is N- (3-hexadecyloxy-2-hydroxypropyl) -N-2-hydroxyethyl decanamide, N- (3-hexadecyloxy-2-hydroxypropyl)-. The water repellent treatment according to claim 1, which is an amide derivative selected from N-2-hydroxyethylhexadecanamide and N- (3-tetradecyloxy-2-hydroxypropyl) -N-2-hydroxyethyldecanamid. powder. 3. The weight ratio of components (A), (B) and (C) is (A) :( B) :( C) = 20-80: 10-4.
The water-repellent treated powder according to claim 1 or 2, which is 0:20 to 80. 4. A powder cosmetic containing the water-repellent treated powder according to any one of claims 1 to 3.