JP6780929B2 - Water-in-oil emulsified cosmetics - Google Patents

Description

The present invention relates to a water-in-oil emulsified cosmetic.

Conventionally, in order to brighten the finish of makeup, it has been studied to add mica titanium or the like having pearl luster to the cosmetic. For example, in Patent Document 1, a cosmetic containing a specific colored mica titanium and spherical powder can obtain a bright, natural finish with less noticeable unevenness, with little change in the saturation of the coating color depending on the viewing angle. Are listed.

Japanese Unexamined Patent Publication No. 2004-83422

On the other hand, in oil-in-water emulsified cosmetics, when trying to increase the covering power, powderiness and whitening become conspicuous. An object of the present invention is to obtain a water-in-oil emulsified cosmetic that can obtain a natural glossy finish while maintaining a covering power.

The present inventors can naturally finish the entire skin by using plate-like powders of purple interference color and white interference color in a specific ratio and further combining mica with a specific particle size, resulting in whitening and whitening. We have found that it is possible to obtain a water-in-oil emulsified cosmetic that is not powdery, maintains color unevenness coverage, has a natural luster, and achieves a clean and bright finish.

In the present invention, the following components (A), (B) and (C):
(A) A plate-like powder having an average particle diameter of 1 to 50 μm, the powder is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and its normal reflection (incident light angle 45 °) is applied. , Light receiving angle −45 °), CIE1976 L * a * b * Plate-like powder with saturation C of 20 or more and hue angle of 300 to 360 ° specified in the color system 0.1 to 10% by mass,
(B) A plate-like powder having an average particle diameter of 1 to 50 μm, which is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and its normal reflection (incident light angle 45 °). , Light receiving angle −45 °), CIE1976 L * a * b * Plate-like powder 0.02 to Saturation C specified by the color system is less than 20 and L * value is 90 to 150. 10% by mass,
(C) Mica 0.2 to 30% by mass other than the components (A) and (B) and having an average particle size of 25 to 100 μm.
The present invention relates to a water-in-oil emulsified cosmetic having a mass ratio (A) / (B) of the component (A) to the component (B) of 1.0 to 10.

The water-in-oil emulsified cosmetic of the present invention has a natural finish, does not cause whitening or powderiness, has excellent color unevenness covering power, has a natural luster, and can obtain a beautiful and bright finish. ..

The plate-like powder of the component (A) has an average particle size of 1 to 50 μm, preferably 2 to 30 μm. The aspect ratio is preferably 10 to 150, more preferably 20 to 100.
Here, the plate-like shape includes not only a plate-like shape in a narrow sense but also a powder having a flaky shape, a scale-like shape, and the like.
The average particle size is measured by an electron microscope observation and a particle size distribution measuring machine by a laser diffraction / scattering method. Specifically, in the case of the laser diffraction / scattering method, measurement is performed with a laser diffraction / scattering type particle size distribution measuring device (for example, LA-920 manufactured by HORIBA, Ltd.) using ethanol as a dispersion medium. For the thickness, the difference from the reference plane is measured with an atomic force microscope, and the arithmetic mean is taken as the average thickness.
Further, the aspect ratio is calculated by the ratio of the average particle diameter to the average thickness, and is defined by the aspect ratio = (average particle diameter / average thickness).

The plate-like powder of the component (A) is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and in its specular reflection (incident light angle 45 °, light receiving angle −45 °). When the color is measured, the saturation C specified by the CIE1976 L * a * b * color system is 20 or more, and 30 or more is excellent because it suppresses whitening and powderiness and has an excellent natural luster. Preferably, 40 or more is more preferable.
Here, the saturation C is obtained by the following method.
Using a commercially available cosmetic sponge (for foundation), apply each powder evenly to 8 mg / 100 cm ^{2 on} black artificial leather (Okamoto Kasei product, Cera Nubac # 010). The obtained sample is color-measured using a colorimeter (Gonio Spectrophotometer GSP-2, manufactured by Murakami Color Technology Laboratory) under the conditions of an incident angle of 45 ° and a light receiving angle of −45 °. As the color system, the CIE1976L * a * b * color system is used, and the saturation C is measured.

Further, the plate-like powder of the component (A) is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and its normal reflection (incident light angle 45 °, light receiving angle −45 °) is applied. ), The hue angle defined by the CIE1976 L * a * b * color system is 300 to 360 °, which suppresses whitening and powderiness and is excellent in natural luster. , 305-350 °, more preferably 305-340 °.
Here, the hue angle is the angle at which the hue is moved counterclockwise from here with the red axis of a * as 0 ° in the CIE1976 L * a * b * color system, and the position of the color is indicated. Is what is done. For example, 90 ° means yellow direction, 180 ° means green direction, and 270 ° means blue direction.

As the plate-like powder of the component (A), one having a pearl luster in which an optically transmissive material having a different refractive index is coated on a flaky base material is preferable. Examples of the flaky base material include mica, synthetic mica, silica flakes, aluminum flakes, aluminum oxide flakes, iron oxide flakes, glass flakes, etc., and mica, synthetic mica, and glass flakes are preferable because of their high transparency. Mica and glass flakes are more preferred, and mica is even more preferred. As the optically permeable material for coating the flaky substrate, titanium oxide, zirconium oxide, zinc oxide, tin oxide, iron oxide, chromium oxide, silica, chromium, titanium nitride, titanium, magnesium fluoride alumina, boehmite, etc. Examples thereof include boron oxide and a mixture thereof, and titanium oxide, tin oxide, iron oxide, and a mixture thereof are preferable from the viewpoint of color development. Of these, titanium oxide and iron oxide are preferable, and titanium oxide is more preferable.

More specifically, mica, synthetic mica or glass flakes coated with titanium oxide and / or iron oxide are preferable, and those having a purple interference color are preferable. As the titanium oxide-coated mica, for example, commercially available products such as flamenco silk violet (manufactured by BASF), prestige violet (manufactured by SUDARSHAN), and flamenco satin violet (manufactured by BASF) can be preferably used.

The plate-shaped powder of the component (A) can be used as it is, but if necessary, for example, silicon treatment, dimethicone treatment, fatty acid treatment, lauroyl lysine treatment, lecithin treatment, N-acylamino acid treatment, metal soap. Hydrophobicized products such as treatment, fluorine compound treatment, and alkylsilane treatment can also be used.
From the viewpoint of excellent dispersibility in water-in-oil emulsified cosmetics and suppression of color unevenness when applied to the skin, those treated with dimethicone or fluorine compounds are preferable, and those treated by a usual method should be used. it can.
When the plate-like powder is hydrophobized, the content, average particle diameter, saturation C, and hue angle of the component (A) are the mass including the hydrophobized agent, the average particle diameter, and the saturation. C means hue angle.

As the component (A), one type or two or more types can be used, and from the viewpoint of suppressing whitening and powderiness and having an excellent natural luster, the content is 0.1% by mass in the entire composition. % Or more, preferably 0.3% by mass or more, more preferably 0.5% by mass or more, more preferably 10% by mass or less, preferably 5% by mass or less, and more preferably 1% by mass or less. The content of the component (A) is 0.1 to 10% by mass, preferably 0.3 to 5% by mass, and more preferably 0.5 to 1% by mass in the total composition.

The plate-like powder of the component (B) has an average particle size of 1 to 50 μm, preferably 2 to 30 μm. The aspect ratio is preferably 10 to 150, more preferably 20 to 100.
Here, the plate-like shape includes not only a plate-like shape in a narrow sense but also a powder having a flaky shape, a scale-like shape, and the like.
Further, the average particle size and the aspect ratio are obtained in the same manner as in the component (A).

The plate-like powder of the component (B) is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and in its specular reflection (incident light angle 45 °, light receiving angle −45 °). When the color is measured, the saturation C defined by the E1976 L * a * b * color system is less than 20, and 17 or less is preferable, and 13 or less is more preferable, from the viewpoint of obtaining a beautiful and bright finish.
Here, the saturation C is obtained by the same method as that of the component (A).

Further, the plate-like powder of the component (B) is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and its specular reflection (incident light angle 45 °, light receiving angle −45 °) is applied. ), The L * value specified by the CIE1976 L * a * b * color system is 90 to 150, and 95 to 145 is preferable, and 100 to 140 from the viewpoint of obtaining a beautiful and bright finish. Is more preferable.

As the plate-like powder of the component (B), mica, synthetic mica or talc coated with titanium oxide and / or iron oxide is preferable, and those having a white interference color are preferable. As the titanium oxide-coated mica, for example, commercially available products such as TIMCA SOFT LUSTER WHITE 6500 (manufactured by BASF) and Prestige Silver (manufactured by BASF) can be preferably used.

The plate-like powder of the component (B) can be used as it is as in the component (A), but if necessary, a hydrophobized powder can also be used.
From the viewpoint of excellent dispersibility in water-in-oil emulsified cosmetics and suppression of color unevenness when applied to the skin, those treated with dimethicone or fluorine compounds are preferable, and those treated by a usual method should be used. it can.
When the plate-like powder is hydrophobized, the content, average particle diameter, saturation C, and L * values of the component (B) are the mass including the hydrophobized agent, the average particle diameter, and the color. Degrees C and L * values.

As the component (B), one type or two or more types can be used, and the content is 0.02% by mass or more and 0.05% by mass in the total composition from the viewpoint of obtaining a clean and bright finish. The above is preferable, 0.1% by mass or more is more preferable, 10% by mass or less, 5% by mass or less is preferable, and 0.5% by mass or less is more preferable. The content of the component (B) is 0.02 to 10% by mass, preferably 0.05 to 5% by mass, and more preferably 0.1 to 0.5% by mass in the total composition.

In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) has a natural finish, suppresses whitening and powderiness, has excellent color unevenness covering power, and is natural. From the viewpoint of providing a glossy, clean and bright finish, 1.0 or more, 1.1 or more is preferable, 1.2 or more is more preferable, 10 or less, 8 or less is preferable, and 6 or less is preferable. More preferred. The mass ratio (A) / (B) of the component (A) to the component (B) is 1.0 to 10, preferably 1.1 to 8, and more preferably 1.2 to 6.

The mica of the component (C) is other than the components (A) and (B). The average particle size is 25 to 100 μm, preferably 30 to 60 μm. The aspect ratio is preferably 10 to 120, more preferably 40 to 90.
Here, the plate-like shape includes not only a plate-like shape in a narrow sense but also a powder having a flaky shape, a scale-like shape, and the like.
Further, the average particle size and the aspect ratio are obtained in the same manner as in the component (A).

As the mica of the component (C), a natural mica or a synthetic phlogopite can be used.
Examples of natural mica include muscovite, for example, SA-350 (manufactured by Yamaguchi Mica Industry Co., Ltd .; average particle diameter 42 μm), FA-450 (manufactured by Yamaguchi Mica Industry Co., Ltd .; average particle diameter 28 μm), SA-310. Commercially available products such as (manufactured by Yamaguchi Mica Industry Co., Ltd .; average particle size 26 μm) can be used.

Examples of synthetic phlogopite include those obtained by mixing and melting silicic acid anhydride, aluminum oxide, magnesium oxide, and potassium silicate, crystallizing crystals, pulverizing, and heat-treating.
Such synthetic phlogopite can be produced and used by the above-mentioned production method, or a commercially available product can also be used. As a commercially available product, for example, PDM-40L (manufactured by Topy Industries, Ltd., average particle diameter 40 μm, aspect ratio 80) or the like can be used.

As the component (C), synthetic phlogopite is preferable from the viewpoint of natural finish, whitening, and suppression of powderiness.
Further, the average particle size of the component (C) is preferably larger than the average particle size of the component (A) and the component (B) from the viewpoint of obtaining a clean and bright finish.

The mica of the component (C) can be used as it is as in the components (A) and (B), but if necessary, a hydrophobized mica can also be used.
From the viewpoint of excellent dispersibility in water-in-oil emulsified cosmetics and suppression of color unevenness when applied to the skin, dimethicone-treated ones are preferable, and those treated by a usual method can be used.
When the mica is hydrophobized, the content of the component (C) and the average particle size mean the mass and the average particle size including the hydrophobized agent.

As the component (C), one type or two or more types can be used, and the content is 0.2% by mass or more in the total composition from the viewpoint of natural finish, whitening, and suppression of powderiness. Yes, 0.4% by mass or more is preferable, 0.6% by mass or more is more preferable, 30% by mass or less, 10% by mass or less is preferable, and 2.5% by mass or less is more preferable. The content of the component (C) is 0.2 to 30% by mass, preferably 0.4 to 10% by mass, and more preferably 0.6 to 2.5% by mass in the total composition.

In the present invention, the mass ratio (C) / ((A) + (B)) of the component (C) to the sum of the components (A) and (B) is a natural finish, and whitening and powderiness are obtained. 0.4 or more is preferable, 0.7 or more is more preferable, and 1.0 or more is further preferable, from the viewpoints of suppressing, excellent color unevenness covering power, having a natural luster, and obtaining a beautiful and bright finish. It is preferably 30 or less, more preferably 20 or less, and even more preferably 2.5 or less. The mass ratio (C) / ((A) + (B)) of the component (C) to the sum of the components (A) and (B) is preferably 0.4 to 30, more preferably 0.7 to 20. It is preferable, and 1.0 to 2.5 is more preferable.

The water-in-oil emulsified cosmetic of the present invention can further contain (D) (dimethicone / vinyldimethicone) crosspolymer, which improves the adhesion and familiarity of the cosmetic to the skin and colors. It has excellent uneven coverage and a bright finish can be obtained.
The component (D) includes, for example, KSG-15, KSG-16, KSG-1610 (manufactured by Shin-Etsu Chemical Co., Ltd.); 9546 Silicone Elastomer Blend (manufactured by Toray Dow Corning Co., Ltd.); SFE-839 (manufactured by GE Silicones). SUNGEL C7, SUNGEL CD20, SUNGEL D20, SUNGEL CP20, DC 1-9852 (manufactured by SUNJIN); CHEMSIL K-61, CHEMSIL K-51 (manufactured by Thornley Company); Lotioncrafter EL51, Lotioncrafter EL61 (Lotioncrafter), etc. Commercially available products can be used.

As the component (D), one type or two or more types can be used, and from the viewpoint of suppressing whitening, excellent color unevenness covering power, and obtaining a bright finish, the content of the component (D) is 0. 01% by mass or more is preferable, 0.03% by mass or more is more preferable, 0.06% by mass or more is further preferable, 10% by mass or less is preferable, 3% by mass or less is more preferable, and 0.4% by mass or less is further preferable. preferable. The content of the component (D) is preferably 0.01 to 10% by mass, more preferably 0.03 to 3% by mass, and even more preferably 0.06 to 0.4% by mass in the total composition.

In the present invention, the mass ratio (A) / (D) of the component (A) to the component (D) is 0.2 or more from the viewpoint of suppressing whitening, excellent color unevenness covering power, and obtaining a bright finish. Is more preferable, 0.5 or more is more preferable, 1 or more is further preferable, 40 or less is more preferable, 20 or less is more preferable, and 10 or less is further preferable. The mass ratio (A) / (D) of the component (A) to the component (D) is preferably 0.2 to 40, more preferably 0.5 to 20, and even more preferably 1 to 10.

Further, the water-in-oil emulsified cosmetic of the present invention can contain water. The water content is preferably 10% by mass or more, more preferably 15% by mass or more, further preferably 20% by mass or more, and preferably 60% by mass or less in the entire composition from the viewpoint of excellent usability and storage stability. , 45% by mass or less is more preferable, and 35% by mass or less is further preferable. The water content is preferably 10 to 60% by mass, more preferably 15 to 45% by mass, and even more preferably 20 to 35% by mass in the total composition.

The water-in-oil emulsified cosmetic of the present invention may contain powders other than the components (A), (B) and (C). As the powder other than the above, if it is a powder usually used for cosmetics, it has a spherical shape, a plate shape, a needle shape, etc., a fumes shape, fine particles, a pigment grade particle size, a porous material, a non-porous material, etc. It can be used without particular limitation depending on the particle structure and the like.
Specifically, mica, iron hydroxide, iron titanate, yellow iron oxide, black iron oxide, carbon black, navy blue, ultramarine, manganese violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt oxide, cobalt titanate, etc. Colored pigments; titanium oxide, zinc oxide, zirconium oxide, magnesium oxide, cerium oxide, aluminum oxide, barium sulfate, calcium sulfate, magnesium sulfate, magnesium carbonate, calcium carbonate, talc, mica, kaolin, sericite, silicic acid, Silica anhydride, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate, metal tungstate, hydroxyapatite, vermiculite, bentonite, montmorillonite, hectrite, smectite, zeolite, White or extender pigments such as ceramic powder, dicalcium phosphate, alumina, silica, aluminum hydroxide, boron nitride, synthetic sericite; fish scale foil, titanium oxide-coated mica (mica titanium), bismuth oxychloride, titanium oxide-coated oxychloride Bismus, titanium oxide coated talc, titanium oxide coated colored mica, titanium oxide coated mica, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, organic pigment treated mica titanium, low order titanium oxide coated mica, titanium oxide coating Synthetic mica, titanium oxide coated plate silica, hollow plate titanium oxide, iron oxide coated mica, plate iron oxide (MIO), aluminum flakes, stainless flakes, titanium oxide coated plate alumina, pearl shell, gold foil, gold vapor deposition resin Pearl pigments (brilliant powder) such as films and metal vapor deposition resin films; organic powders such as organopolysiloxane elastomer, polymethylsilsesquioxane, nylon powder, silk powder, urethane powder, cellulose powder; red 104 Examples include organic tar pigments such as No., Red No. 102, Red No. 226, Red No. 201, Red No. 202, Yellow No. 4, and Black No. 401, organic pigments and rakes thereof, and one or two of these. The above can be used.

Any of these powders can be used as they are, and one or more of these powders can be hydrophobized. The hydrophobizing treatment is not limited as long as it is a treatment applied to ordinary cosmetic powders, such as fluorine compounds, silicone compounds, metal soaps, amino acid compounds, lecithin, alkylsilanes, oils, and organic titanates. Dry treatment, wet treatment, etc. may be performed using the surface treatment agent of.
Specific examples of the surface treatment agent include fluorine-based compounds such as perfluoropolyether, perfluoroalkyl phosphate, perfluoroalkyl alkoxysilane, and fluorine-modified silicone; dimethylpolysiloxane, methylhydrogenpolysiloxane, cyclic silicone, and pieces. Silicone compounds such as terminal or both terminal trialkoxy group-modified organopolysiloxanes, crosslinked silicones, silicone resins, fluorine-modified silicone resins, acrylic-modified silicones; aluminum stearate, aluminum myristate, zinc stearate, magnesium stearate, etc. Metal soaps; amino acid compounds such as proline, hydroxyproline, alanine, glycine, sarcosin, glutamate, aspartic acid, lysine and derivatives thereof; lecithin, hydrogenated lecithin; methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane , Alkoxysilanes such as octyltrimethoxysilane and octylriethoxysilane; oils such as polyisobutylene, waxes and fats and oils; organic titanates such as isopropyltitanium triisostearate and the like.

In addition to the above-mentioned components, the water-in-oil emulsified cosmetic of the present invention includes components used in ordinary cosmetics, such as oily components, surfactants, water-soluble and oil-soluble polymers, ethanol, polyhydric alcohols, and preservatives. , Antioxidants, pigments, thickeners, pH regulators, fragrances, UV absorbers, moisturizers, blood circulation promoters, cold sensation agents, antiperspirants, bactericides, skin activators, moisturizers, etc. Can be done.

The water-in-oil emulsified cosmetic of the present invention can be produced by a usual method, and can be made into a liquid, milky liquid, paste-like, cream-like, gel-like or other dosage form, milky liquid, cream-like. Is preferable.
The water-in-oil emulsified cosmetic of the present invention is a makeup base, foundation, concealer; make-up cosmetics such as blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, lipstick; sunscreen emulsion, It can be applied as an ultraviolet protective cosmetic such as a sunscreen cream. Among them, makeup base, liquid foundation, concealer, sunscreen emulsion, and sunscreen cream are more preferable, and makeup base and liquid foundation are even more preferable.
The water-in-oil emulsified cosmetic of the present invention can be used alone or in the layering of powder cosmetics such as liquid foundation, powder foundation and white powder.

Production Example 1 (Production of Fluorinated Silicone)

Synthesis of _{C 6 F 13 -CH 2 CH 2} -O-CH 2 CH = CH 2:
To a 2L four-necked flask equipped with a thermometer and a cooling tube, add 800 g (2.2 mol) of FA-6 (manufactured by Unimattech) and 175.78 g (4.4 mol) of granular NaOH (manufactured by Wako Pure Chemical Industries, Ltd.). It was. The temperature inside the flask was adjusted to 60 ° C. by heating while stirring at 200 rpm with a 12 cm crescent stirring blade manufactured by Teflon (registered trademark) under a nitrogen atmosphere. 398.73 g (3.3 mol) of allyl bromide (manufactured by Wako Pure Chemical Industries, Ltd.) was added dropwise thereto over 2 hours. After completion of the dropping, the mixture was stirred at 70 ° C. for 1 hour and at 80 ° C. for 1 hour. Then, the temperature was raised to 130 ° C. to remove excess allyl bromide. After cooling to 60 ° C., 800 g of ion-exchanged water was added, stirred for 30 minutes, and then allowed to stand for layer separation. The upper aqueous layer was extracted, 800 g of ion-exchanged water was further added, and the mixture was stirred, allowed to stand, and the aqueous layer was removed again. Dried at 60 ℃ / 5KPa, 100 ℃ / distilled at 2 KPa, as a fraction, to obtain a _{C 6 F 13 -CH 2 CH 2} -O-CH 2 CH = CH 2 774.9g ( yield: 88 %).

To a 300 mL four-necked flask equipped with a thermometer, add 52.89 g (111 mmol) of hydrogen polysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.) represented by the following formula, and under a nitrogen atmosphere, 8 cm crescent moon manufactured by Teflon (registered trademark). The mixture was stirred with a blade at 200 rpm, 2 mass% chloroplatinic acid hexahydrate / 0.66 g of isopropyl alcohol was added, and the temperature was raised to 110 ° C.

C ₆ F ₁₃ -CH ₂ CH _2- O-CH ₂ CH = CH ₂ 197.11 g (488 mmol) was added dropwise over 2 hours. After completion of the dropping, the mixture was stirred at 110 ° C. for 2 hours. Then, the temperature was lowered to 70 ° C. 25.07 g of 0.1% NaOH solution was added, and the mixture was stirred for 2 hours. The mixture was dehydrated at 60 ° C./5 KPa, and after the dehydration was completed, 2.51 g of Carborafine 3 (manufactured by Japan Enviro Chemicals, Inc.) was added and stirred for 2 hours. The filtrate was filtered through a 0.1 μm PTFE membrane filter, and the filtrate was steam distilled using 62.5 g of water at 100 ° C. to obtain 206.3 g of the target compound (Compound B1) (yield 89%).

Production Example 2 (Production of poly (N-propionylethyleneimine) dimethylsiloxane copolymer)
12.9 g (0.13 mol) of 2-ethyl-2-oxazoline and 27.7 g of ethyl acetate are mixed, and the mixed solution is 2.0 g of molecular sieve (Zeolam A-4, manufactured by Tosoh Corporation) at 28 ° C. 15 Time dehydration was performed.
Further, 100 g of side chain primary aminopropyl-modified polydimethylsiloxane (KF-8015, manufactured by Shinetsu Silicone Co., Ltd., mass average molecular weight 100,000, amine equivalent 20000) and 203 g of ethyl acetate were mixed, and the mixed solution was prepared with 15.2 g of molecular sieve. Dehydration was performed at 28 ° C. for 15 hours.
0.77 g (0.005 mol) of diethyl sulfate was added to the above-mentioned ethyl acetate solution of dehydrated 2-ethyl-2-oxazoline, and the mixture was heated under reflux at 80 ° C. for 8 hours under a nitrogen atmosphere to undergo terminal-reactive poly (N-propionyl). Ethylimine) was synthesized. The number average molecular weight measured by GPC was 2700.
This terminally reactive poly (N-propionylethyleneimine) solution was collectively added with the above-mentioned dehydrated side chain primary aminopropyl-modified polydimethylsiloxane solution, and the mixture was heated under reflux at 80 ° C. for 10 hours.
The reaction mixture was concentrated under reduced pressure to give an N-propionylethyleneimine-dimethylsiloxane copolymer as a white rubbery solid (108 g). The mass ratio of the organopolysiloxane segment in the final product was 0.87, and the mass average molecular weight of the final product was 115,000.

Examples 1-10 and Comparative Examples 1-6
A water-in-oil emulsified cosmetic (liquid foundation) with the composition shown in Table 2 is manufactured, and the natural finish after application, no whitening after application, non-powder finish after application, and color unevenness after application. The covering power, the natural glossy finish after application, the clean finish after application, and the bright finish after application were evaluated. The results are also shown in Table 2.
In the plate-like powders used in Examples and Comparative Examples, the average particle size, L * value, saturation C, and hue angle are as shown in Table 1.

(Manufacturing method)
After the components (A), (B), (C) and other powders are dispersed and mixed, the oil phase containing the component (D) and the oil component is added, and the aqueous phase containing water is further mixed to obtain oil. A medium-water emulsified cosmetic (foundation) was obtained.

(Evaluation methods)
Each water-in-oil emulsified cosmetic was taken on a finger and applied to the skin. Natural finish after application, no whitening after application, non-powder finish after application, color unevenness coverage after application, natural glossy finish after application, clean finish after application and application I evaluated the bright finish later. The evaluation results in the table were sensorially evaluated by five expert evaluators on the following five stages, and indicated by the total score of the five.

(1) Natural finish after application:
5; The finish looks quite natural.
4; The finish looks natural.
3; The finish looks a little natural.
2; The finish does not look very natural.
1; The finish does not look natural.

(2) No whitening after application:
5; Whitening is hardly noticeable.
4; Whitening is not noticeable.
3; Whitening is not so noticeable.
2; Whitening is a little noticeable.
1; Whitening is noticeable.

(3) Non-powdered finish after application:
5; The finish does not look powdery.
4; The finish does not look very powdery.
3; The finish looks a little powdery.
2; The finish looks powdery.
1; The finish looks quite powdery.

(4) Color unevenness covering power after application:
5; Covers uneven skin tone.
4; Covers uneven skin tone.
3; Slightly covers uneven skin tone.
2; Does not cover uneven skin tone very much.
1; Does not cover uneven skin tone

(5) Natural glossy finish after application:
5; A strong natural luster is felt in the finish.
4; A natural luster is felt in the finish.
3; A slightly natural luster is felt in the finish.
2; The finish does not have a natural luster.
1; No natural luster is felt in the finish.

(6) Beautiful finish after application:
5; The finish of the skin is fairly uniform.
4; The finish of the skin is uniform.
3; The finish of the skin is slightly uniform.
2; The finish of the skin is not very uniform.
1; The finish of the skin is not uniform.

(7) Bright finish after application:
5; The skin is quite bright.
4; The skin is bright.
3; The skin is a little bright.
2; The skin is not very bright.
1; The skin is not bright.

Example 11
A water-in-oil emulsified cosmetic (liquid foundation) having the composition shown in Table 3 was produced in the same manner as in Examples 1 to 10.
The obtained cosmetics had a natural finish after application, no whitening, no powdery finish, excellent color unevenness coverage, and a natural glossy finish, resulting in a beautiful and bright finish. ..

Claims (5)

The following components (A), (B) and (C):
(A) A plate-like powder having an average particle diameter of 1 to 50 μm, the powder is uniformly applied to black artificial leather so as to be 8 mg / 100 cm ^2, and its normal reflection (incident light angle 45 °) is applied. , Light receiving angle −45 °), CIE1976 L * a * b * Plate-like powder 0.5 ~ with a saturation C of 20 or more and a hue angle of 300-360 ° specified by the color system. 1 % by mass,
(B) A plate-like powder selected from mica, synthetic mica, and talc coated with titanium oxide and / or iron oxide and having an average particle size of 1 to 50 μm, and the powder is applied to black artificial leather in an amount of 8 mg. When the color is uniformly applied so as to be / 100 cm ² and the color is measured by its specular reflection (incident light angle 45 °, light receiving angle -45 °), the saturation C specified by the CIE1976 L * a * b * color system 0.1 to 0.5 % by mass of plate-like powder having an L * value of less than 20 and an L * value of 90 to 150,
(C) Mica 0.6 to 2.5 % by mass other than the components (A) and (B) and having an average particle diameter of 25 to 100 μm.
A water-in-oil emulsified cosmetic having a mass ratio (A) / (B) of the component (A) to the component (B) of 1.0 to 10. The water-in-oil emulsified cosmetic according to claim 1, wherein the component (C) is synthetic phlogopite. The water in oil according to claim 1 or 2, wherein the mass ratio (C) / ((A) + (B)) of the component (C) to the sum of the components (A) and (B) is 0.4 to 30. Mold emulsified cosmetics. The water-in-oil emulsified cosmetic according to any one of claims 1 to 3, further comprising (D) (dimethicone / vinyldimethicone) crosspolymer 0.01 to 10% by mass. The water-in-oil emulsified cosmetic according to claim 4, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.2 to 40.