JP7323354B2 - Water-in-oil emulsified cosmetic - Google Patents

Description

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

Conventionally, cosmetics with good finish such as gloss and excellent makeup durability have been studied.
For example, Patent Document 1 describes a water-in-oil type lip cosmetic containing an oil such as phenyl-modified silicone, ethyl cellulose, liquid alcohol, dextrin fatty acid ester, etc., which maintains luster over time due to the elasticity and resilience of the coating film. It is described to have excellent stability.
The phenyl-modified silicone used here is generally used for the purpose of polishing (for example, Patent Document 2, paragraph "0045").
Further, Patent Document 3 discloses that a water-in-oil emulsified cosmetic containing a silicone-modified polysaccharide compound, a specific ester oil, and a hydrophobically-treated coloring pigment does not give a feeling of film on the skin after application, and It is described that the finish of the skin is uniform, looks glossy, and does not look powdery.

JP 2018-162224 A JP 2018-2664 A JP 2018-35092 A

However, in conventional cosmetics, especially when phenyl-modified silicone is used to obtain a glossy finish, the skin may become sticky or look powdery after application, and the covering power against blemishes is not sufficient. I didn't. In addition, when the foundation is overcoated, there is also a problem that the foundation becomes uneven and is easily removed.

The present inventors have found a water-in-oil emulsified cosmetic that solves the above problems by using a combination of a non-volatile phenyl-modified silicone, a specific ester oil, fine particles of titanium oxide, and a hydrophobically treated coloring pigment. is obtained.

The present invention provides the following components (A), (B), (C) and (D):
(A) nonvolatile phenyl-modified silicone 0.05 to 15% by mass,
(B) an ester oil selected from pentaerythritol fatty acid esters and dipentaerythritol fatty acid esters that are liquid at 25°C;
(C) fine particles of titanium oxide 0.1 to 15% by mass,
(D) Hydrophobized colored pigment 1 to 20% by mass
It relates to a water-in-oil emulsified cosmetic containing

The water-in-oil type emulsified cosmetic composition of the present invention provides an excellent glossy finish, does not make the skin sticky and powdery after application, and provides sufficient covering power against blemishes. be. Also, when the foundation is overcoated, it does not become uneven and is difficult to remove.

The phenyl-modified silicone of component (A) is non-volatile. Here, the term "non-volatile" means that the weight loss rate is 1% or less after spreading 1 g of the oil solution on a glass petri dish having a diameter of 48 mm and allowing it to stand at 25° C. and normal pressure for 24 hours.
Further, component (A) preferably has a viscosity of 5 mm ² /s or more, preferably 500 mm ² /s or less at 25° C., from the viewpoint of improving a glossy and uniform finish.
Examples of component (A) include phenyltrimethicone, diphenylsiloxyphenyltrimethicone, trimethylsiloxyphenyldimethicone, diphenyldimethicone, and trimethylpentaphenyltrisiloxane.
Among these, one or more selected from phenyltrimethicone and diphenylsiloxyphenyltrimethicone are preferable, and diphenylsiloxyphenyltrimethicone is more preferable, from the viewpoint of improving a glossy and uniform finish.

Component (A) can be used alone or in combination of two or more. The content of the component (A) reduces the stickiness and powdery feeling of the skin after application, improves the glossiness and covering power against blemishes, and is a multi-coated foundation. From the viewpoint of reducing unevenness and difficulty of removal, it is 0.05 to 15% by mass in the total composition, preferably 0.15 to 8% by mass, more preferably 0.5 to 4% by mass.

The ester oil of component (B) is selected from pentaerythritol fatty acid esters and dipentaerythritol fatty acid esters that are liquid at 25°C.
The term “liquid” means that it has fluidity and is liquid at 25°C. Moreover, the melting point of the component (B) is preferably 20° C. or lower.

The fatty acid that constitutes the component (B) may be either a saturated fatty acid or an unsaturated fatty acid, and saturated fatty acid is preferred from the viewpoint of reducing the unevenness and difficulty of removal of foundation applied in multiple layers. Either a straight-chain fatty acid or a branched-chain fatty acid may be used, and a branched-chain fatty acid is preferable from the viewpoint of reducing the unevenness and difficulty of removal of foundation applied in multiple layers. Moreover, these fatty acids may have a hydroxy group.
Examples of such fatty acids include caproic acid, caprylic acid, 2-ethylhexanoic acid, isononanoic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, hydroxystearic acid, arachidic acid, and behenic acid. acid, lignoceric acid, cerotic acid, montanic acid, melissic acid and the like. Among the above fatty acids, saturated fatty acids having 16 to 28 carbon atoms are preferred. Examples of such fatty acids include palmitic acid, stearic acid, isostearic acid, hydroxystearic acid, arachidic acid, behenic acid, lignoceric acid, cerotic acid, and montanic acid. Further, saturated fatty acids having 16 to 22 carbon atoms are more preferable, and examples thereof include palmitic acid, stearic acid, isostearic acid, hydroxystearic acid, arachidic acid and behenic acid.

The alcohol that constitutes component (B) is pentaerythritol and dipentaerythritol, and dipentaerythritol is particularly preferable from the viewpoint of reducing unevenness and difficulty in removing the foundation after multiple coats.
Examples of component (B) include pentaerythrityl (behenic acid/polyhydroxystearate) pentaerythrityl (behenic acid/polyhydroxystearate) as a pentaerythrityl fatty acid ester, and dipentaerythrityl tripolyhydroxystearate as an example of a dipentaerythrityl fatty acid ester. , dipentaerythrityl pentaisostearate, and dipentaerythrityl tetraisostearate.
As the component (B), from the viewpoint of reducing the unevenness and difficulty of removing the foundation that has been repeatedly applied, dipentaerythritol fatty acid ester is preferable, and dipentaerythrityl tripolyhydroxystearate, dipentaerythrityl pentaisostearate, and dipentaerythrityl tetraisostearate. One or two or more selected are more preferable, one or two or more selected from dipentaerythrityl tripolyhydroxystearate and dipentaerythrityl tetraisostearate are more preferable, and dipentaerythrityl tripolyhydroxystearate is even more preferable.

As dipentaerythrityl tripolyhydroxystearate, Salacos WO-6 (manufactured by Nisshin Oilio Co., Ltd.), and as dipentaerythrityl pentaisostearate, commercial products such as Saracos DP-518N (manufactured by Nisshin Oillio Co., Ltd.) can be used.
In addition, dipentaerythrityl tetraisostearate and pentaerythrityl (behenic acid/polyhydroxystearate) can be produced according to known methods. For example, dipentaerythrityl tetraisostearate can be produced by the method described in Production Examples below.

Component (B) can be used alone or in combination of two or more to reduce the stickiness and powdery feeling of the skin after application, improve the glossiness and cover power against spots, prevent unevenness in the foundation that has been applied over and over again, From the viewpoint of reducing the difficulty of removal, the content is preferably 0.01 to 5% by mass, more preferably 0.07 to 3% by mass, and 0.07 to 0.6% by mass in the entire composition. is more preferred.

In the present invention, the mass ratio (A)/(B) of the component (A) to the component (B) reduces the stickiness and powdery feeling of the skin after application, improves the glossiness and the covering power against spots, From the viewpoint of reducing the unevenness of the applied foundation and the difficulty of removing it, it is preferably from 0.1 to 80, more preferably from 0.5 to 50, and even more preferably from 1 to 30.

Component (C), fine titanium oxide, reduces the stickiness and powdery feel of the skin after application, improves the covering power against blemishes, and reduces the unevenness and difficulty of removal of overcoated foundation. Those with a diameter of less than 0.1 μm are preferred, those between 0.005 and 0.06 μm are more preferred, and those between 0.01 and 0.04 μm are even more preferred.
Here, the primary particle diameter is the Feret directional tangential diameter of an image taken with a scanning electron microscope, and the mass-based particle size distribution can be measured using an image analyzer.
The shape of the microparticles of titanium oxide is not limited, and may be plate-like, acicular, spherical, or the like.
As fine particles of titanium oxide, commercially available products such as STR-100W (manufactured by Sakai Chemical Industry Co., Ltd.) can be used.

The fine particle titanium oxide of component (C) can be used as it is, or can be used after hydrophobizing treatment.
Hydrophobic treatment includes silicone treatment, fluorine treatment, fatty acid treatment, N-acylamino acid treatment and the like. Examples of silicone treatment include methylhydrogenpolysiloxane treatment, dimethylpolysiloxane treatment, and alkylalkoxysilane treatment. Examples of fluorine treatment include perfluoroalkylphosphate treatment, perfluoroalkylalkoxysilane treatment, and the like. Examples of fatty acid treatment include stearic acid treatment and myristic acid treatment. Examples of N-acylamino acid treatment include lauroyllysine treatment, dilauroyl glutamic acid lysine Na treatment, stearoyl glutamic acid 2Na treatment, and lauroyl aspartic acid Na treatment. .
Hydrophobic treatment includes silicone treatment and fluorine treatment to improve the stickiness of the skin after application, a lustrous feeling that reduces the powdery feeling, improve the covering power against blemishes, and reduce the unevenness and difficulty of removing the foundation that has been repeatedly applied. One or more selected from treatment is preferable, and one or more selected from methylhydrogenpolysiloxane treatment, dimethylpolysiloxane treatment, alkylalkoxysilane treatment, and perfluoroalkylalkoxysilane treatment is more preferable. One or two or more selected from alkoxysilane treatment and perfluoroalkylalkoxysilane treatment are more preferred, and those including at least alkylalkoxysilane treatment are even more preferred.
Alkylalkoxysilanes include hexyltrimethoxysilane, hexyltriethoxysilane, caprylyltrimethoxysilane, caprylyltriethoxysilane, decyltrimethoxysilane, decyltriethoxysilane, etc., which may cause skin stickiness and powderiness after application. Caprylyltriethoxysilane is preferred from the viewpoints of reducing skin irritation, improving covering power against blemishes, and reducing unevenness and difficulty of removal of foundation applied in multiple coats.

In order to hydrophobilize fine particles of titanium oxide, a dry process, a wet process, or the like may be performed by a conventional method.
From the viewpoint of reducing the stickiness and powdery feeling of the skin after application, improving the covering power against blemishes, and reducing the unevenness of the foundation that is applied over and over again, and the difficulty of removing it, the amount of treatment is relative to the mass of the fine particles of titanium oxide. , preferably 0.1 to 20% by mass, more preferably 1 to 18% by mass, even more preferably 3 to 15% by mass, and even more preferably 5 to 12% by mass.

Component (C) can be used alone or in combination of two or more, and the content reduces the stickiness and powdery feel of the skin after application, improves the covering power against blemishes, and prevents unevenness in the foundation that has been overcoated. From the viewpoint of reducing the difficulty of removal, it is 0.1 to 15% by mass, preferably 0.8 to 11% by mass, more preferably 2 to 7% by mass.
When a hydrophobized material is used as the component (C), the content of the component (C) means the mass including the hydrophobized agent.

In the present invention, the mass ratio (A)/(C) of the component (A) to the component (C) reduces the stickiness and powdery feeling of the skin after application, improves the glossiness and covering power against spots, From the viewpoint of reducing the unevenness of the applied foundation and the difficulty of removing it, it is preferably 0.01 to 10, more preferably 0.05 to 5, even more preferably 0.15 to 3, and 0.3 to 1 is even more preferable.

In the present invention, the mass ratio (B)/(C) of the component (B) to the component (C) reduces the stickiness and powdery feeling of the skin after application, improves the glossiness and covering power against spots, From the viewpoint of reducing the unevenness of the applied foundation and the difficulty of removing it, it is preferably 0.005 to 0.5, more preferably 0.011 to 0.2, and even more preferably 0.018 to 0.07. .

Component (D) used in the present invention is a hydrophobically treated color pigment.
Coloring pigments used in ordinary cosmetics include, for example, titanium oxide other than component (C), zinc oxide, fine zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red iron oxide, and Prussian blue. , ultramarine blue, chromium oxide, chromium hydroxide, and other metal oxides, manganese violet, cobalt titanate, and other metal complexes, and carbon black and other inorganic pigments; tar-based pigments, lake pigments, and other organic pigments, and carmine and other natural pigments. etc. Titanium oxide other than component (C) preferably has a primary particle size of 0.1 μm or more, more preferably 0.2 μm or more.
As the coloring pigment, at least one or two or more selected from titanium oxide, yellow iron oxide, black iron oxide, red iron oxide, and fine zinc oxide, from the viewpoint of improving the covering power against blemishes and finishing the skin with a beautiful make-up effect. Preferably, it contains at least one or more selected from titanium oxide, yellow iron oxide, black iron oxide, red iron oxide, and fine zinc oxide, and more preferably contains titanium oxide, yellow iron oxide, black iron oxide, It is more preferable to contain at least one or two or more selected from red iron oxide.

Examples of the hydrophobizing treatment for these color pigments include those similar to those for the component (C).
The hydrophobizing treatment is preferably one or more selected from silicone treatment and N-acyl amino acid treatment from the viewpoint of reducing the powdery feeling of the skin after application and improving the covering power against spots. One or two or more selected are more preferable, and one or two or more selected from methylhydrogenpolysiloxane treatment, dimethylpolysiloxane treatment, and alkylalkoxysilane treatment are more preferable, and methylhydrogenpolysiloxane treatment and dimethylpolysiloxane treatment are more preferable. Siloxane treatment is even more preferred, and dimethylpolysiloxane treatment is even more preferred.

In order to hydrophobize the color pigment, a dry treatment, a wet treatment, or the like may be performed by a conventional method.
The treatment amount is preferably 0.1 to 20% by weight, preferably 0.5 to 10%, based on the weight of the coloring pigment from the viewpoint of reducing the powdery feeling of the skin after application and improving the covering power against blemishes. % by mass is more preferred, and 1 to 7% by mass is even more preferred.
The content of component (D) means the mass including the hydrophobizing agent.

Component (D) can be used alone or in combination of two or more. From the viewpoint of reducing the powdery feel of the skin after application and improving the covering power against blemishes, the content is 1 to 20 in the total composition. % by mass, preferably 3 to 18% by mass, more preferably 8 to 17% by mass.

The water-in-oil emulsified cosmetic composition of the present invention can further contain (E) a crosslinked organopolysiloxane, which can reduce the stickiness of the skin after application and the unevenness of the foundation applied over and over again.
The crosslinked organopolysiloxane of component (E) may be modified with polyoxyalkylene. Specifically, crosslinked dimethylpolysiloxane, crosslinked alkylpolysiloxane, polyoxyalkylene-modified crosslinked dimethyl Examples include polysiloxane and crosslinked alkylpolysiloxane modified with polyoxyalkylene. The crosslinked dimethylpolysiloxane is a polymer having a crosslinked structure in which the siloxane skeleton is three-dimensionally crosslinked, and the crosslinked alkylpolysiloxane further has an alkyl group having 6 to 20 carbon atoms.

Examples of the crosslinked dimethylpolysiloxane include (dimethicone/vinyl dimethicone) crosspolymer and (dimethicone/phenylvinyl dimethicone) crosspolymer. One or two or more selected from (dimethicone/vinyl dimethicone) crosspolymer and (dimethicone/phenyl vinyl dimethicone) crosspolymer are preferred, and (dimethicone/vinyl dimethicone) crosspolymer is more preferred.

As the (dimethicone/vinyl dimethicone) crosspolymer, KSG-15, which is a mixture with decamethylcyclopentasiloxane, and KSG-16, which is a mixture with low-viscosity dimethylpolysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.), are commercially available. products can be used.
As the (dimethicone/phenylvinyldimethicone) crosspolymer, commercially available products such as KSG-18 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is a mixture with methylphenylpolysiloxane, can be used.

Examples of crosslinked alkylpolysiloxanes include (vinyl dimethicone/lauryl dimethicone) crosspolymers.
The (vinyl dimethicone/lauryl dimethicone) crosspolymer includes KSG-41, which is a mixture with liquid paraffin, KSG-42, which is a mixture with light isoparaffin, and KSG-43, which is a mixture with glyceryl tri-2-ethylhexanoate. , and KSG-44 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is a mixture with squalane, can be used.

Examples of crosslinked dimethylpolysiloxane modified with polyoxyalkylene include (dimethicone/(PEG-10/15)) crosspolymer and the like.
(Dimethicone / (PEG-10/15)) crosspolymers include KSG-210, which is a mixture with low-viscosity dimethylpolysiloxane, and KSG-240, which is a mixture with decamethylcyclopentasiloxane (Shin-Etsu Chemical Co., Ltd. product) can be used.

Examples of crosslinked alkylpolysiloxanes modified with polyoxyalkylene include (PEG-15/lauryl dimethicone) crosspolymer, (PEG-10/lauryl dimethicone) crosspolymer, and the like, and the stickiness of the skin after application and repeated application From the viewpoint of reducing the unevenness of the foundation applied, one or more selected from (PEG-15/lauryl dimethicone) crosspolymer and (PEG-10/lauryl dimethicone) crosspolymer are preferable, and (PEG-15/lauryl dimethicone ) crosspolymer and (PEG-10/lauryl dimethicone) crosspolymer at the same time.

(PEG-15/lauryl dimethicone) crosspolymers include KSG-310, which is a mixture with liquid paraffin, KSG-320, which is a mixture with light isoparaffin, and KSG-, which is a mixture with glyceryl tri-2-ethylhexanoate. Commercially available products such as 330 (manufactured by Shin-Etsu Chemical Co., Ltd.) can be used.
As the mixture of (PEG-15/lauryl dimethicone) crosspolymer and (PEG-10/lauryl dimethicone) crosspolymer, commercially available products such as KSG-340 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is a mixture with squalane, can be used. can.

The crosslinked organopolysiloxane of component (E) includes crosslinked dimethylpolysiloxane and polyoxyalkylene-modified crosslinked dimethylpolysiloxane from the viewpoint of reducing the stickiness of the skin after application and the unevenness of the foundation applied over and over again. , preferably one or two or more selected from crosslinked alkylpolysiloxane modified with polyoxyalkylene, more preferably one or two or more selected from crosslinked dimethylpolysiloxane, (dimethicone/vinyl dimethicone) cross Polymers are more preferred.

The crosslinked organopolysiloxane of component (E) may be used as it is in a solid state, or may be used after being uniformly mixed with a liquid oil. Among them, from the viewpoint of dispersibility in cosmetics and workability, it is preferable to use it as a dispersion diluted with a liquid oil, and one or more selected from silicone oil, hydrocarbon oil, and ester oil. It is more preferable to use one or two or more selected from silicone oils and hydrocarbon oils, and silicone oils are even more preferable.

Component (E) can be used alone or in combination of two or more. From the viewpoint of reducing the stickiness of the skin after application and the unevenness of the overcoated foundation, the content is 0.1 to 3 in the total composition. % by mass, more preferably 0.5 to 2.4% by mass, even more preferably 0.8 to 1.8% by mass.

The water-in-oil type emulsified cosmetic composition of the present invention can further contain a plate-like powder, which improves the covering power against blemishes on the skin after application, and prevents unevenness and difficulty in removing the foundation applied over and over again. can be reduced.
Here, the term "plate-like" includes powders having shapes such as flakes and scales, in addition to plate-like shapes in the narrow sense.
The plate-like powder preferably has a volume average particle size of 1 to 100 μm from the viewpoint of improving the covering power against skin blemishes after application and reducing the unevenness and difficulty of removing the foundation that has been repeatedly applied. ~60 μm is more preferable, and 8 to 50 μm is even more preferable. The aspect ratio is preferably 10-100, more preferably 30-90.

In the present invention, the volume average particle size is measured with a laser diffraction scattering particle size distribution analyzer (LMS-350, manufactured by Seishin Enterprise Co., Ltd.). Moreover, in the present invention, the volume average particle size is the volume-based average particle size, and is defined as a 50% median size.
The aspect ratio is calculated from the ratio of the volume average particle diameter to the average particle thickness, and is defined by aspect ratio=(volume average particle diameter/average thickness).
The average thickness of the grains can be obtained by averaging the thicknesses of 10 to 50 base grains observed by a scanning electron microscope or a transmission electron microscope.

Plate-like powders include, for example, plate-like cerium oxide, plate-like barium sulfate, talc, mica, plate-like kaolin, sericite, muscovite, plate-like synthetic mica, phlogopite, red mica, biotite, lethia mica, Plate-like silicic anhydride, plate-like hydroxyapatite, bentonite, montmorillonite, hectorite, plate-like ceramic powder, plate-like alumina, plate-like boron nitride, plate-like iron oxide, titanium oxide-coated mica, titanium oxide-treated mica, bismuth oxychloride , titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, titanium oxide-coated colored mica, aluminum, sheet glass powder, and the like.
Talc, mica, plate-like synthetic mica, and plate-like boron nitride are used as the plate-like powder from the viewpoint of improving the covering power against skin blemishes after application and reducing the unevenness and difficulty of removal of the foundation that is applied over and over again. , preferably one or two or more selected from plate glass powder, more preferably one or two or more selected from talc, plate-like synthetic mica, and plate-like boron nitride, and selected from talc and plate-like synthetic mica. One or two or more are more preferred, and talc is even more preferred.

In addition, the plate-like powder can be used as it is, or if necessary, can be used after being hydrophobized as in the case of the component (C).
When the plate-shaped powder is subjected to hydrophobization treatment, the content, volume average particle size, and particle thickness are the content, volume average particle size, and particle thickness including the agent subjected to hydrophobization treatment. means.

One or two or more types of plate-like powder can be used, and the content is from the viewpoint of improving the covering power against skin blemishes after application and reducing the unevenness and difficulty of removing the foundation that has been repeatedly applied. Therefore, it is preferably 1 to 30% by mass, more preferably 1.5 to 20% by mass, and even more preferably 2 to 10% by mass in the total composition.

The water-in-oil type emulsified cosmetic composition of the present invention can further contain a volatile oil, and can reduce stickiness of the skin after application, unevenness of the foundation applied in multiple layers, and difficulty in removal.
Here, volatile means having a flash point of 35-100°C.
Any volatile oil that is used in ordinary cosmetics may be used, including silicone oil, hydrocarbon oil, ether oil, and the like.
Examples of silicone oils include linear dimethylpolysiloxane and cyclic dimethylpolysiloxane. The linear dimethylpolysiloxane may be either linear or branched. Examples of linear dimethylpolysiloxane include dimethylpolysiloxane (1.5cs) and dimethylpolysiloxane (2cs). includes methyltrimethicone, tris(trimethylsilyl)methylsilane, tetrakis(trimethylsilyl)silane, and the like. Cyclic dimethylpolysiloxanes include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like.
Hydrocarbons include isododecane, isotridecane, isohexadecane, light isoparaffin, light liquid isoparaffin and the like, and ether oils include ethyl perfluorobutyl ether and the like.

Among these, from the viewpoint of reducing the stickiness of the skin after application, the unevenness of the overcoated foundation, and the difficulty of removing it, one or more selected from silicone oils and hydrocarbon oils are preferable, and dimethylpolysiloxane ( 2cs), decamethylcyclopentasiloxane, isododecane, and light isoparaffin are more preferable, and one or more selected from dimethylpolysiloxane (2cs) and decamethylcyclopentasiloxane are more preferable. preferable.

One or more volatile oils can be used, and the content is in the entire composition from the viewpoint of reducing the stickiness of the skin after application, the unevenness of the overcoated foundation, and the difficulty of removing it. It is preferably 5 to 40% by mass, more preferably 8 to 35% by mass, even more preferably 10 to 30% by mass.

In the water-in-oil emulsified cosmetic composition of the present invention, the water content is preferably 10 to 70% by mass, more preferably 15 to 60% by mass, and even more preferably 20 to 50% by mass in the total composition. .

The water-in-oil emulsified cosmetic of the present invention contains, in addition to the above components, components that are usually used in cosmetics, such as powders other than the above, oily components other than the above, polymers other than the above, surfactants, Antioxidants, fragrances, pigments, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, moisturizers, cooling agents, etc. can be contained.

The water-in-oil type emulsified cosmetic of the present invention can be produced according to a conventional method, and can be in the form of liquid, milky lotion, paste, cream, gel and the like. Creamy is preferred.
Further, the water-in-oil type emulsified cosmetic of the present invention includes makeup bases, foundations, concealers; It can be applied as an ultraviolet protection cosmetic such as a sunscreen cream. Among them, makeup bases and foundations are more preferable.
The water-in-oil emulsified cosmetic composition of the present invention can be used alone, or can be used in layers of powder cosmetics such as liquid foundation, powder foundation, and white powder.

Production Example 1 (production of dipentaerythrityl tetraisostearate):
58.4 g (0.23 mol) of dipentaerythritol [trade name: Di-Pentalit, manufactured by Koei Chemical Industry Co., Ltd.] and 293.9 g (1.03 mol) of 2-(1,3,3-trimethyl)butyl-5,7,7-trimethyloctanoic acid [trade name: isostearic acid, manufactured by Nissan Chemical Industries, Ltd.] was charged (raw material charge mass ratio=10:50.3). Thereafter, 0.05% by mass of dibutyltin oxide (catalyst) and 5% by mass of xylene (reflux solvent) were added to the total amount charged, and the mixture was reacted at 200 to 250° C. for about 21 hours while stirring. After completion of the reaction, the reflux solvent xylene was distilled off under reduced pressure. The reaction product from which xylene was removed was subjected to adsorption treatment with activated clay, then cooled to about 60° C., filtered, and deodorized and distilled by a conventional method to obtain 245 g of dipentaerythrityl tetraisostearate.
The viscosity at 25°C was 350,000 mPa·s, and it was liquid at 25°C. Viscosity was measured using a Brookfield viscometer (BH type) at 25°C with a rotor No. 6 at 2 rpm.

Examples 1-8 and Comparative Examples 1-2
A water-in-oil emulsified cosmetic (makeup base) having the composition shown in Table 1 was produced, and the lack of stickiness on the skin after application, the lack of powdery feeling on the skin after application, the glossiness on the skin after application, and the after application. The covering power against blemishes on the skin, the lack of unevenness in the foundation that was repeatedly applied, and the difficulty of removing the foundation that was repeatedly applied were evaluated. The results are also shown in Table 1.

(Manufacturing method)
The powder phase components were mixed and pulverized, added to the separately mixed oil phase components, and dispersed with a disper (2000 rpm) for 10 minutes. After that, the aqueous phase component was added, and the mixture was stirred for 10 minutes with a disper (800 rpm) to obtain a water-in-oil emulsified cosmetic.

(Evaluation method)
(1) Non-sticky skin after application:
Five professional evaluators applied 0.03 g of each water-in-oil emulsified cosmetic to the skin on the inner side of the forearm in a size of 2×3 cm ² using a sponge, and evaluated the lack of stickiness immediately after application as follows. It was sensory evaluated in 5 stages. The result was shown by the total score of 5 persons.
5; no stickiness.
4; Not very sticky.
3; Slightly non-sticky.
2; Slightly sticky.
1; Sticky.

(2) Absence of powdery skin feeling after application:
Five professional evaluators applied 0.03 g of each water-in-oil emulsified cosmetic to the skin on the inner side of the forearm with a sponge in a size of 2 × 3 cm ² , and evaluated the lack of powdery feeling immediately after application. Visual evaluation was made in the following 5 stages. In addition, the powdery feeling is evaluated by visual observation of the amount of powder accumulated in the grooves of the texture. I thought it felt powdery. The result was shown by the total score of 5 persons.
5; no powdery feeling.
4; Not much powdery feeling.
3; Powdery feeling is not sensed a little.
2; Felt a little powdery.
1; A feeling of powder is sensed.

(3) Glossiness of skin after application:
Five professional evaluators used a sponge to apply 0.03 g of each water-in-oil emulsified cosmetic to the skin on the inner side of the forearm in a size of 2 × 3 cm ² , and evaluated the lack of gloss immediately after application. Visual evaluation was made in the following 5 stages. The result was shown by the total score of 5 persons.
5; There is considerable luster.
4; Glossy.
3; Slightly glossy.
2; Not much gloss.
1; There is no gloss.

(4) Covering power against skin blemishes after application:
Five professional evaluators applied 0.03 g of each water-in-oil emulsified cosmetic to a stain replica (Bioskin, manufactured by Beaulux) in a size of 2×3 cm ² using a sponge. From the state of the stain replica before applying the water-in-oil type emulsified cosmetic, the degree of concealment of the stain was visually evaluated in the following five grades. The result was shown by the total score of 5 persons.
5; stains are inconspicuous.
4; stains are not very conspicuous.
3; Stain is slightly inconspicuous.
2; Stain is slightly conspicuous.
1; Stain is conspicuous.

(5) Evenness of foundation applied in layers:
Five professional evaluators applied 0.03 g of each water-in-oil emulsified cosmetic to the skin on the inner side of the forearm in a size of 2×3 cm ² using a sponge. After that, on the skin to which each water-in-oil emulsified cosmetic has been applied, apply a powder foundation (Alblan Junhaku Beautiful Skin Powder Foundation manufactured by Kao Corporation) using another sponge. was visually evaluated on a scale of 5. The result was shown by the total score of 5 persons.
5; No unevenness.
4; There is not much unevenness.
3; There is little unevenness.
2; There is a little unevenness.
1; there is unevenness.

(6) Difficulty in removing foundation after multiple coats:
Five professional evaluators applied 0.03 g of each water-in-oil emulsified cosmetic to the skin on the inner side of the forearm in a size of 2×3 cm ² using a sponge. Then, on the skin to which each water-in-oil type emulsified cosmetic was applied, a powder foundation (Albran Junhaku fair skin powder foundation manufactured by Kao Corporation) was applied using another sponge. The part of the skin to which the foundation was applied is covered with the foundation. After 5 minutes, the skin to which the foundation was applied was rubbed 5 times with a finger with a constant force, and the condition of the rubbed portion was visually evaluated. The result was shown by the total score of 5 persons.
5; The surface of the skin was covered with the foundation, and the color of the applied foundation did not change.
4; The surface of the skin is covered with the foundation, and the color of the applied foundation is light.
3; The surface of the skin has a small portion not covered with the foundation, and the color of the applied foundation is light.
2; The surface of the skin is partially not covered with the foundation, and the color of the applied foundation is light.
1; Most of the skin surface is not covered with the foundation.

Formulation example 1
Water-in-oil emulsified cosmetics having compositions shown in Table 2 were produced in the same manner as in Examples 1 to 8.
The resulting water-in-oil emulsified cosmetic does not make the skin sticky after application, reduces the powdery feel, gives a glossy finish, and has excellent covering power against blemishes. It's hard to get.

Claims (4)

The following components (A), (B), (C) and (D):
(A) nonvolatile phenyl-modified silicone 0.05 to 15% by mass,
(B) an ester oil selected from pentaerythritol fatty acid esters and dipentaerythritol fatty acid esters that are liquid at 25°C;
(C) 0.1 to 15% by mass of fine particles of titanium oxide surface-treated with an alkylalkoxysilane ;
(D) Hydrophobized colored pigment 1 to 20% by mass
contains
A water-in-oil emulsified cosmetic in which the mass ratio (B)/(C) of component (B) to component (C) is 0.005 to 0.25 . The water-in-oil emulsified cosmetic according to claim 1, wherein the content of component (B) is 0.01 to 5% by mass. 3. The water-in-oil emulsified cosmetic composition according to claim 1, further comprising (E) a crosslinked organopolysiloxane. The water-in-oil emulsified cosmetic composition according to any one of claims 1 to 3 , wherein the mass ratio (A)/(B) of component (A) to component (B) is 0.1-80.