JPH11246331A - Oil-in-water type cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oil-in-water type cosmetic excellent in dispersibility of a powder, feeling of use such as spread and emollient feeling and further water and oil repellency and good in makeup lasting quality. SOLUTION: This oil-in-water type cosmetic contains a powder having the surface treated with a compound selected from a perfluoropolyether alkyl phosphate and its salt, a perfluoropolyether alkyl sulfate and its salt and a perfluoropolyether alkyl carboxylate and its salt having a perfluoropolyether group having >=300 molecular weight and a water-soluble polymer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an oil-in-water type cosmetic which is excellent in use feeling such as spreading and emollient feeling, excellent in water repellency and oil repellency, and has good makeup durability.

[0002]

2. Description of the Related Art Various powders are used in cosmetics. These powders are optionally subjected to surface treatment with various compounds according to the purpose of use, such as dispersibility, feeling of use, adhesion to skin, water repellency and oil repellency. In particular, cosmetic powders are subjected to surface treatment to impart water repellency and oil repellency to prevent makeup collapse due to sweat and sebum, and conventional water repellent and oil repellent treatments with perfluoroalkyl phosphate salts I was In oil-in-water type cosmetics, the dispersion of the hydrophilic powder is easy, but there is a drawback that the makeup persistence is inferior. On the other hand, the hydrophobic treated powder has a good makeup persistence but the dispersion is poor. It was difficult.

[0003]

For this reason, surfactants and the like have been blended in perfluoroalkyl phosphate ester-treated powders for the purpose of improving dispersibility, and attempts have been made to improve such properties. It was not enough. In addition, although adhesion to the skin was good, emollient feeling and persistence of makeup were not always satisfactory.

[0004]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, treated the surface of the powder with a compound having a specific perfluoropolyether group. Oil-in-water cosmetics with excellent properties such as good dispersibility, good adhesion to the skin, high emollient feeling, and improved makeup persistence are obtained by using the powder and the water-soluble polymer. It was found that the present invention was obtained, and the present invention was completed.

That is, the present invention relates to a perfluoropolyether alkyl phosphoric acid and a salt thereof, a perfluoropolyether alkyl sulfate and a salt thereof, and a perfluoropolyether alkyl carboxylic acid and a salt thereof having a molecular weight of 300 or more. An object of the present invention is to provide an excellent oil-in-water cosmetic containing a powder having a surface treated with a compound having a certain perfluoropolyether group and a water-soluble polymer.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Compounds having a specific perfluoropolyether group for surface-treating powders used in the present invention include those described in Japanese Patent Application Laid-Open No. H8-133928. The compound having a specific perfluoropolyether group is selected from perfluoropolyether alkyl phosphoric acid and salts thereof, perfluoropolyether alkyl sulfate and salts thereof, and perfluoropolyether alkyl carboxylic acid and salts thereof. These compounds contain a perfluoropolyether group and have a polar group selected from a phosphate group, a sulfate group and a carboxyl group to have an affinity for the powder surface. Further, a perfluoropolyether group refers to a group having at least two or more ether oxygens bonded to perfluoroalkylene or perfluoroalkyl. Accordingly, the perfluoropolyether alkylphosphoric acid and salts thereof according to the present invention include a perfluorooxy group having only one ether oxygen as described in JP-A-5-39209 and JP-A-5-58841. Compounds containing an alkyl group are not included. The molecular weight of the perfluoropolyether group is 300 or more, preferably 500 or more, and a preferable upper limit is about 7,000. If it is less than 300, water / oil repellency cannot be sufficiently imparted, and it is difficult to achieve the effects of the present invention.

Preferred examples of the perfluorooxyalkylene group constituting the perfluoropolyether moiety include a perfluorooxymethylene group, a perfluorooxyethylene group, a perfluorooxyisopropylene group and a perfluorooxy n-propylene group. Can be At least one of them is selected and polymerized to form a perfluoropolyether group. Among them, particularly preferred perfluoropolyether groups are groups represented by the following general formulas (1) and (2).

[0008] _{- (X) CFO (CF 2} CF (CF 3) O) l (CF 2 CF 2 O) m (CF 2 O) n C F (X) - ... (1) - (X) CFO (CF ₂ CF ₂ CF ₂ O) ₁ (CF ₂ CF ₂ O) _m (CF ₂ O) _n CF (X)-(2) (however, the molecular weight is 300 or more, more preferably 5
00 or more, l and m each represent an integer of 0 or more, and n is 1
Where l = m ≠ 0 and 1 / n = 1 to 1
00, more preferably 20 to 40, and m / n
= Is 0.1 to 50, more preferably from 0.2 to 20, X may be the same or different, are F or CF _3. )

In the case where the perfluoropolyether group contains two or more kinds of perfluorooxyalkylene groups, it is not limited to the case where the same kinds are continuously polymerized, but may be random polymerization or block polymerization.

Furthermore, from the viewpoint of the fixing force between the compound having a perfluoropolyether group according to the present invention and the powder, it is necessary that a polar group having an affinity for the powder is not easily detached from the compound. Therefore, the compound preferably contains at least one or more oxyalkylene groups. More preferably, it is 1-2. This is because the presence of three or more oxyalkylene groups results in poor water / oil repellency of the compound. Similarly, an alkylene group may be contained in addition to the oxyalkylene group in terms of the fixing force. The preferred carbon number of the alkylene group is 2 or less.

Examples of the compound having a perfluoropolyether group include perfluoropolyether alkyl phosphoric acid and salts thereof, perfluoropolyether alkyl sulfate and salts thereof, and perfluoropolyether alkyl carboxylic acid and salts thereof. Among them, perfluoropolyether alkyl phosphoric acid or a salt thereof is preferable.
More preferred are compounds represented by the following general formulas (3) and (4) and diethanolamine salts thereof.

[0012] _{[C a F 2a + 1 O} (C 3 F 6 O) l (CF 2 O) n CF (X) (CH 2) d - - (OCH 2 CH 2) r] q OP (= O) (OH) _3-q (3) (However, the molecular weight of the perfluoropolyether group is 300
Or more, more preferably 500 or more, and 1 / n
= 1 to 100, more preferably 20 to 40, a is 1 to 10, d is 0 to 2, q is 1 or 2, r is 1 to 2, and X is F or CF ₃ . )

[0013] _{(HO) 2 (O =)} PO (CH 2 CH 2 O) r CH 2 CF 2 O (CF 2 CF 2 O) m (C F 2 O) n CF 2 CH 2 (OCH 2 CH 2) _r OP (＝ O) (OH) ₂ (4) (however, the molecular weight of the perfluoropolyether group is 300
Or more, more preferably 500 or more, and m / n
= 0.1-50, more preferably 0.2-20, and r is 1-2. )

The powder to be coated with the compound having a specific perfluoropolyether group of the present invention may be a spherical, plate-like or needle-shaped powder as long as it is a powder generally used in cosmetics. Shape, fume shape, fine particles, particle size such as pigment grade, porous and non-porous particle structure, etc., are not particularly limited, and inorganic powders, glitter powders, organic powders , Dye powders, composite powders, and the like. Specifically, titanium oxide, konjo, ultramarine, red iron oxide, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, aluminum oxide, silicon dioxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, water Inorganic such as chromium oxide, carbon black, aluminum silicate, magnesium silicate, aluminum magnesium silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, boron nitride, etc. Powders,
Bright powders such as bismuth oxychloride, titanium mica, iron oxide coated mica, iron oxide mica titanium, organic pigment treated mica titanium, aluminum powder, nylon powder, polymethyl methacrylate, acrylonitrile-methacrylic acid copolymer powder, chloride Vinylidene-methacrylic acid copolymer powder, polystyrene, polyethylene powder, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder, polytetrafluoroethylene powder, wool powder, silk powder, ethyl carbamate powder, crystalline cellulose, stearic acid Magnesium, zinc stearate, N
-Organic powders such as acyl lysine, organic tar pigments, pigment powders such as organic pigment lake pigments, fine titanium oxide-coated mica titanium, fine zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium dioxide-containing dioxide. silicon,
Composite powder such as zinc oxide-containing silicon dioxide, and the like,
These can be used alone or in combination of two or more.

The method of treating the surface of the powder with a compound having a perfluoropolyether group is not particularly limited.
An ordinary powder surface coating method can be applied.
For example, a processed powder can be easily obtained by dissolving or dispersing a compound having a perfluoropolyether group in a solvent (organic solvent or polar solvent), mixing with the powder, removing the solvent, and drying. . After the above treatment, the powder may be baked at a high temperature in order to more strongly adsorb the compound having a perfluoropolyether group to the powder. In the surface treatment, two or more kinds of powders can be mixed and treated at the same time.

Furthermore, within a range that does not impair the effects of the present invention,
It may be treated simultaneously or in layers with other known coating agents such as other fluorine compounds, silicone compounds, lecithin, hydrogenated lecithin, N-long-chain acylamino acids, collagen, higher fatty acids, higher alcohols, esters and waxes.

The amount of treatment with the compound having a perfluoropolyether group varies depending on the type of the compound and the powder, but from the viewpoint of achieving the effect, it is preferably 0.1 to 50% by weight of the powder (hereinafter simply referred to as "weight"). %), More preferably 0.5 to 20%.

In the oil-in-water type cosmetic of the present invention, the amount of the powder treated with the specific fluorine compound having a perfluoropolyether group varies depending on the type of the powder. The content is from 80% to 80%, more preferably from 0.5% to 60%. If it exceeds 80%, it is difficult to disperse the composition in cosmetics.

The water-soluble polymer used in the present invention may be any substance that exhibits viscosity when dissolved or swollen in water. For example, guar gum, sodium chondroitin sulfate, gum arabic, alginic acid, carrageenan, agar, pectin, locust bean gum, xanthan gum, gellan gum curdlan, and other natural substances, methylcellulose, hydroxymethylcellulose,
Semi-synthetic materials such as hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylpropylcellulose and carboxymethylcellulose, carboxyvinyl polymer, polyvinyl alcohol, sodium polyacrylate, acrylic acid / alkyl methacrylate (C1
0-30) Synthetic systems such as copolymers and alkyl acrylate copolymer emulsions.

The water-soluble polymer is pectin, alginic acid,
One that gels with calcium ions like gellan gum, one that gels with a combination of κ-carrageenan or xanthan gum like locust bean gum, one that produces a hard gel like agar or κ-carrageenan, carboxyvinyl polymer, Thickening by adding alkali such as sodium hydroxide, potassium hydroxide, triethanolamine, arginic acid and the like like acrylic acid / alkyl methacrylate (C10-30) copolymer and alkyl acrylate copolymer emulsion Depending on the type, it can be made of any hardness from liquid to solid.

Among the water-soluble polymers, carrageenan, agar, locust bean gum, xanthan gum, carboxyvinyl polymer, acrylic acid.
Examples thereof include an alkyl methacrylate (C10-30) copolymer and an alkyl acrylate copolymer emulsion.

The amount of the water-soluble polymer varies depending on the type thereof, but is preferably 0.01 to 5%, more preferably 0.01 to 1.5%. Dispersibility, good elongation, etc. are better.

In the oil-in-water type cosmetic of the present invention, in addition to the above essential components, components that can be generally used in cosmetics can be used as long as the effects of the present invention are not impaired. For example, powders other than the component (a), such as oils and fats, waxes, waxes, hydrocarbons, higher fatty acids, higher alcohols, esters, metal soaps, silicone oils, fluorine-based oils, and lower alcohols ,
Polyhydric alcohols, nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants, surfactants such as modified silicone oils, dyes such as dyes and natural dyes, film formation Agents, moisturizers, fragrances, preservatives, ultraviolet absorbers, antioxidants, fungicides, plant extracts, animal extracts, enzymes, drugs, acids, alkalis, and other special ingredients. Can be mentioned.

[0024] Cosmetics that easily exert the effects of the oil-in-water cosmetic of the present invention include skin care cosmetics, makeup cosmetics, and hair cosmetics. In particular, makeup cosmetics can be expected to exhibit the effect, and more preferred are foundation, white powder, makeup base, blush, lipstick, concealer, eyeshadow, eye products, and the like.

[0025]

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

Production Example 1: 500 g of 2-propanol and 5 g of perfluoropolyether alkyl phosphoric acid represented by the following general formula (5) were placed in a titanium oxide beaker treated with a 5% perfluoropolyether compound, and 95 g of titanium oxide was stirred. Is added. After sufficiently stirring at room temperature, mixing at 80 ° C. for 1 hour,
It was dried under reduced pressure to obtain titanium oxide treated with a 5% perfluoropolyether compound.

[0027]

Embedded image (Wherein, m / n = 1.8, r = 1 to 2, the average molecular weight of the perfluoropolyether alkyl phosphoric acid is 1050, and the average molecular weight of the perfluoropolyether group is 60.
6. )

Production Example 2: In the same manner as in Production Example 1, red iron oxide was treated to obtain red iron oxide treated with a 5% perfluoropolyether compound. Production Example 3: Treated with yellow iron oxide in the same manner as in Production Example 1,
A 5% perfluoropolyether compound-treated yellow iron oxide was obtained. Production Example 4: Black iron oxide was treated in the same manner as in Production Example 1,
A black iron oxide treated with a perfluoropolyether compound 5% was obtained. Production Example 5: A talc was treated in the same manner as in Production Example 1 to obtain a talc treated with a perfluoropolyether compound 5%. Production Example 6: Mica was treated in the same manner as in Production Example 1 to obtain a mica treated with a perfluoropolyether compound 5%.

Production Example 7: 500 ml of water was placed in a titanium mica beaker treated with 8% of a perfluoropolyether compound, 46 g of spindle-shaped titanium oxide was added with stirring, and the mixture was sufficiently stirred at room temperature. 20% of a perfluoropolyether alkyl phosphate diethanolamine salt represented by the following general formula (6) is added to this mica titanium dispersion.
20 g of the aqueous solution was gradually added, and the mixture was stirred and mixed for 3 hours after the addition. After neutralization with hydrochloric acid, suction filtration was performed, followed by drying to obtain mica titanium treated with 8% of a perfluoropolyether compound.

[0030]

Embedded image (Wherein 1 / n = 24.1, the average molecular weight of the perfluoropolyether alkyl phosphate diethanolamine salt is 1
195 and the average molecular weight of the perfluoropolyether group is 791. )

Production Comparative Example 1: Perfluoroalkyl compound
5% treated titanium oxide Put 500 ml of water in a beaker, and mix with
95 g was added and stirred sufficiently at room temperature. This titanium oxide
While stirring, add the perfluoroalkyl
25 g of a 20% aqueous solution of diethanolamine luphosphate
The mixture was gradually added, and stirred for one and a half hours after the addition. Neutralized with acid
After filtration, vacuum filtration and drying of perfluoroalkyl
Thus, titanium oxide treated with 5% of the compound was obtained. (C_mF_{2m + 1}CH_TwoCH_TwoO)_nP (= O) [ONH_Two(C
H_TwoCH_TwoOH)_Two]_3-n  (Where m and n are m = 6 to 18 and 2 ≧ n ≧ 1.
And the average molecular weight is 954,
The average molecular weight of the hydroxyl group is 619. )

Production Comparative Example 2 A bengara was treated in the same manner as in Production Comparative Example 1 to give 5% of a perfluoroalkyl compound.
Obtained processed bengala. Production Comparative Example 3: Yellow iron oxide was treated in the same manner as in Production Comparative Example 1 to obtain a 5% perfluoroalkyl compound-treated yellow iron oxide. Production Comparative Example 4: Black iron oxide was treated in the same manner as in Production Comparative Example 1 to obtain a 5% perfluoroalkyl compound-treated black iron oxide.

Production Comparative Example 5: 5% treatment with methyl hydrogen polysiloxane 5% titanium oxide Dissolve 5 g of methyl hydrogen polysiloxane in 100 ml of 2-propanol, add 95 g of titanium oxide, stir, and distill off 2-propanol. By baking treatment, titanium oxide treated with methyl hydrogen polysiloxane 5% was obtained.

Comparative Production Example 6 The same treatment as in Comparative Production Example 5 was applied to redwood to obtain 5% methylhydrogenpolysiloxane-treated redwood. Production Comparative Example 7: Yellow iron oxide was treated in the same manner as in Production Comparative Example 5 to obtain a 5% methylhydrogenpolysiloxane-treated yellow iron oxide. Production Comparative Example 8: Black iron oxide was treated in the same manner as in Production Comparative Example 5 to obtain a 5% methylhydrogenpolysiloxane-treated black iron oxide.

Examples 1 to 5 and Comparative Examples 1 to 4: Oil-in-water emulsified foundation An oil-in-water emulsified foundation having the formulation shown in Table 1 was prepared, and the dispersibility of the powder, its stability and adhesion to the skin were prepared. , Good elongation, emollient feeling, persistence of makeup, etc. were evaluated.

[0036]

[Table 1]

(Preparation method) A: (1) to (6) are heated and dissolved. B: (7) to (17) are uniformly heated and mixed. C: After adding B to A and cooling, (18) to (37) and (3)
8) and mix evenly. D: C was filled in a container to obtain an oil-in-water type foundation.

(Evaluation of Dispersibility) Using a 25 μm doctor blade on a glass plate, the thin films of the oil-in-water foundations of Examples and Comparative Examples immediately after production and one month later were drawn, dried, and checked for the presence of aggregates. The results were visually evaluated according to the following criteria, and the results are shown in Table 1. Standard: None ◎ Somewhat ○ Some △ Very much ×

(Evaluation of Adhesion to Skin, Good Elongation, Emollient Feeling, Sustainability of Makeup) Examples 1 to 5 and Comparative Examples 1 to 5
With respect to the oil-in-water emulsified foundation of No. 4, a use test was performed by 20 specialized panels, and the results were determined according to the following criteria. Standard: Very good 3 points Good to normal 2 points Bad 1 point Judgment: Average point 2.5 points or more ◎ 2.0 points or more and less than 2.5 points ○ 1.5 points or more and less than 2.0 points △ 1.5 Less than point ×

As is clear from Table 1, the oil-in-water foundations of Examples 1 to 5 are different from Comparative Examples in powder dispersibility and stability, adhesion to skin, emollient feeling, good elongation, All items of cosmetic persistence were excellent.

Example 6: Skin-colored emulsion (Formulation) (% by weight) (1) N-stearoyl-L-glutamic acid 0.5 (2) Cetanol 0.5 (3) Polyoxyethylene (10 mol) monostearate 0 0.8 (4) decaglyceryl monoisostearate 1.0 (5) sorbitan sesquioleate 0.4 (6) methylphenylpolysiloxane 5 (7) glycerin 3 (8) 1,3-butylene glycol 5 (9) Xanthan gum 0.1 (10) Carrageenan 0.05 (11) Triethanolamine 1 (12) Methyl parahydroxybenzoate 0.2 (13) Purified water Remaining (14) Perfluoropolyether compound 2.5% treatment Titanium oxide (Note 1) 2 (15) 2.5% treatment of perfluoropolyether compound Talc (Note 1) 2 (16) Perfluoro Red ether compound 2.5% treatment Bengala (Note 1) 0.5 (17) Perfluoropolyether compound 2.5% treatment Yellow iron oxide (Note 1) 1 (18) Perfluoropolyether compound 2.5% treatment Black Iron oxide (Note 1) 0.1 (19) Perfume Appropriate amount Note 1: In the same manner as in the titanium oxide treated with 5% perfluoropolyether compound of Production Example 1, 2 to titanium oxide, red iron oxide, yellow iron oxide and black iron oxide A 0.5% perfluoropolyether compound was treated.

(Production method) A: (1) to (6) are heated and dissolved. B: (7) to (13) are mixed by heating. C: B was added to A, emulsified, cooled, and then (14) to (1).
8) and (19) are added. D: C was filled in a container to obtain a flesh-colored emulsion. The skin-colored milky lotion of Example 6 has powder dispersibility, adhesion to skin,
All of the items were excellent in elongation, emollient feeling, and persistence of makeup.

Example 7: Base cream (Prescription) (% by weight) (1) Stearic acid 1.5 (2) Cetanol 1 (3) Polyoxyethylene monooleate (20 mol) Sorbitan 0.8 (4) Sesqui Sorbitan oleate 0.4 (5) Liquid paraffin 5 (6) Glycerin 3 (7) 1,3-butylene glycol 5 (8) Acrylic acid / alkyl methacrylate (C10-30) copolymer 0.1 (9) Alkyl acrylate copolymer 1.0 (10) Triethanolamine 1 (11) Methyl paraoxybenzoate 0.2 (12) Purified water Remaining amount (13) Titanium oxide of Production Example 1 2 (14) Production Example 5 Talc 2 (15) Red iron oxide of Production Example 2 0.5 (16) Yellow iron oxide 1 of Production Example 3 (17) Black iron oxide 0.1 of Production Example 4 0.1 (18) Perfume

(Preparation method) A: (1) to (5) are heated and dissolved. B: (6) to (12) are mixed by heating. C: B was added to A, emulsified, cooled, and then (13) to (1).
7) and (18) are added. D: C was filled in a container to obtain a base cream. The foundation cream of Example 7 was excellent in all of the dispersibility of powder, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

Example 8: Solid foundation (prescription) (% by weight) (1) soybean phospholipid 0.5 (2) sorbitan sesquioleate 2 (3) glyceryl 2-ethylhexanoate 2 (4) microcrystalline wax 1 (5) Appropriate amount of fragrance (6) Preservative appropriate amount (7) 1,3-butylene glycol 10 (8) Agar 1 (9) Carboxyvinyl polymer 0.2 (10) Triethanolamine 0.2 (11) Purified water (12) Titanium oxide of Production Example 1 7 (13) Talc of Production Example 5 5 (14) Mica 0.5 of Production Example 6 (15) Bengala 0.5 of Production Example 2 (16) Production Example 3 Iron oxide yellow 1 (17) Black iron oxide of Production Example 4 0.1

(Preparation method) A: (1) to (4) are heated and dissolved. B: (6) to (11) are mixed by heating. C: B was added to A, emulsified, cooled, and then (12) to (1).
Add 7) and (5). D: C was filled in a container to obtain a solid foundation. The solid foundation of Example 8 was excellent in all of the dispersibility of powder, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

Example 9: Eye color (Formulation) (% by weight) (1) Stearic acid 1 (2) Cetanol 0.5 (3) Polyoxyethylene monooleate (20 mol) Sorbitan 0.4 (4) Sesqui Sorbitan oleate 0.2 (5) Dimethyl polysiloxane 2 (6) Perfluoropolyether 3 (7) 1,3-butylene glycol 5 (8) Acrylic acid / alkyl methacrylate (C10-30) copolymer 1 (9) Carrageenan 0.05 (10) Triethanolamine 1 (11) Methyl parahydroxybenzoate 0.2 (12) Purified water Remaining (13) Titanium mica of Production Example 7 5 (14) Perfluoropolyether compound 5% treatment Nylon powder (Note 2) 2 (15) Perfluoropolyether compound 2% treatment Red No. 226 (Note 3) 0 2 (16) Perfluoropolyether compound 2% treatment Blue No. 404 (Note 4) 0.1 (17) Perfluoropolyether compound 3% treatment Black iron oxide (Note 5) 0.05 (18) Perfume Appropriate amount Note 2 : Nylon powder was treated with 5% perfluoropolyether compound in the same manner as in titanium oxide treated with 5% perfluoropolyether compound of Production Example 1. Note 3: Red No. 226 was treated with a 2% perfluoropolyether compound in the same manner as the titanium oxide treated with a 5% perfluoropolyether compound of Production Example 1. Note 4: Blue No. 404 was treated with a 2% perfluoropolyether compound in the same manner as the titanium oxide treated with a 5% perfluoropolyether compound of Production Example 1. Note 5: Black iron oxide was treated with 3% perfluoropolyether compound in the same manner as in titanium oxide treated with 5% perfluoropolyether compound of Production Example 1.

(Preparation method) A: (1) to (6) are heated and dissolved. B: (7) to (12) are mixed by heating. C: B was added to A, emulsified, cooled, and then (13) to (1).
7) and (18) are added. D: C was filled in a container to obtain an eye color. The eye color of Example 9 was excellent in all of the items of powder dispersibility, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

Example 10: Face color (prescription) (% by weight) (1) N-stearoyl-L-glutamic acid 0.5 (2) Cetanol 0.5 (3) Polyoxyethylene monooleate (20 mol) sorbitan 0.6 (4) Sorbitan sesquioleate 0.3 (5) Methylphenyl polysiloxane 3 (6) Cetyl isostearate 3 (7) 1,3-butylene glycol 5 (8) Carboxyvinyl polymer 0.1 (9) Carrageenan 0.05 (10) Triethanolamine 1 (11) Methyl paraoxybenzoate 0.2 (12) Remaining purified water (13) Titanium oxide of Production Example 1 1 (14) 5% treatment of perfluoropolyether compound mica Titanium (Note 6) 3 (15) Perfluoropolyether compound 2% treatment Red No. 202 (Note 7) (16) Yellow iron oxide 1 of Production Example 1 (17) Black iron oxide of Production Example 0.1 (18) Perfume appropriate amount Note 6: In the same manner as the titanium oxide treated with 5% perfluoropolyether compound of Production Example 1 And mica titanium were treated with a 5% perfluoropolyether compound. Note 7: Red No. 202 was treated with a 2% perfluoropolyether compound in the same manner as the titanium oxide treated with a 5% perfluoropolyether compound of Production Example 1.

(Production method) A: (1) to (6) are heated and dissolved. B: (7) to (12) are mixed by heating. C: B was added to A, emulsified, cooled, and then (13) to (1).
7) and (18) are added. D: C was filled in a container to obtain a face color. The face color of Example 10 was excellent in all items of powder dispersibility, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

Example 11: Lipstick (Formulation) (% by weight) (1) Polyoxyethylene sorbitan monooleate (6EO) 1 (2) Cetanol 1 (3) Polyoxyethylene monooleate (20 mol) sorbitan 8 (4) sorbitan sesquioleate 0.4 (5) glyceryl 2-ethylhexanoate 10 (6) diglycerin triisostearate 20 (7) 1,3-butylene glycol 5 (8) xanthan gum 0.5 (9 ) Locust bee gum 0.1 (10) Methyl parahydroxybenzoate 0.2 (11) Remaining purified water (12) Titanium oxide 1 of Production Example 1 (13) Perfluoropolyether compound 2% treatment Red No. 202 (Note) 7) 3 (14) 5% treatment of perfluoropolyether compound Yellow No. 4 aluminum lake (Note 8) 1.5 (1 5) Black iron oxide of Production Example 4 0.1 (16) Perfume appropriate amount Note 8: 5% perfluoropoly on yellow No. 4 aluminum lake by the same method as perfluoropolyether compound 5% treated titanium oxide of Production Example 1 The ether compound was processed.

(Production method) A: (1) to (6) are dissolved by heating. B: (7) to (11) are mixed by heating. C: B was added to A, emulsified, cooled, and then (12) to (1).
5) and (16) are added. D: C was filled in a container to obtain a lipstick. The lipstick of Example 11 was excellent in all items of powder dispersibility, adhesion to lips, good elongation, emollient feeling, and long-lasting makeup.

Example 12: Eyeliner (Formulation) (% by weight) (1) Stearic acid 1.5 (2) Cetanol 1 (3) Polyoxyethylene monooleate (20 mol) Sorbitan 0.8 (4) Sesqui Sorbitan oleate 0.4 (5) Paraffin wax 10 (6) 1,3-butylene glycol 5 (7) Alkyl acrylate copolymer emulsion 4 (8) Triethanolamine 1.5 (9) Methyl paraoxybenzoate 0 .2 (10) Remaining amount of purified water (11) Mica 5 of Production Example 6 (12) Black iron oxide of Production Example 10 (13) Appropriate amount of fragrance

(Production method) A: (1) to (5) are heated and dissolved. B: (6) to (10) are mixed by heating. C: B was added to A, emulsified, cooled, and then (11) to (1).
Add 2) and (13). D: C was filled in a container to obtain an eyeliner. The eyeliner of Example 12 was excellent in all items of powder dispersibility, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

Example 13: Liquid eyebrow (Formulation) (% by weight) (1) Stearic acid 1.5 (2) Cetanol 1 (3) Polyoxyethylene monooleate (20 mol) Sorbitan 0.8 (4) Sesqui Sorbitan oleate 0.4 (5) Paraffin wax 10 (6) Starch fatty acid ester 1 (7) 1,3-butylene glycol 5 (8) Carboxyvinyl polymer 0.1 (9) Triethanolamine 1 (10) Paraoxybenzoate Methyl acid 0.2 0.2 (11) Purified water Remaining amount (12) Mica 8 of Production Example 6 (13) Black iron oxide of Production Example 10 10 (14) Perfume Appropriate amount

(Preparation method) A: (1) to (6) are heated and dissolved. B: (7) to (11) are mixed by heating. C: B was added to A, emulsified, cooled, and then (12) to (1).
Add 3) and (14). D: C was filled in a container to obtain an eyebrow. The liquid eyebrow of Example 13 was excellent in all of the dispersibility of powder, adhesion to skin, good elongation, emollient feeling, and long-lasting makeup.

[0057]

Industrial Applicability The oil-in-water cosmetic of the present invention has excellent powder dispersibility, good adhesion to skin, good elongation, excellent emollient feeling, and good cosmetic durability. It had excellent quality.

Claims (3)

[Claims] 1. A perfluoropolyether having a molecular weight of 300 or more selected from perfluoropolyether alkyl phosphoric acid and salts thereof, perfluoropolyether alkyl sulfate and salts thereof, and perfluoropolyether alkyl carboxylic acids and salts thereof. An oil-in-water cosmetic comprising a powder having a surface treated with a compound having an ether group and a water-soluble polymer. 2. A perfluoropoly having a molecular weight of 300 or more selected from perfluoropolyether alkyl phosphoric acid and salts thereof, perfluoropolyether alkyl sulfate and salts thereof, and perfluoropolyether alkyl carboxylic acids and salts thereof. The oil-in-water cosmetic according to claim 1, which contains 0.2 to 80% of a powder whose surface is treated with a compound having an ether group. 3. The oil-in-water cosmetic according to claim 1, which contains 0.01 to 5% of a water-soluble polymer.