JP2021161115A - Water-in-oil type emulsion cosmetic - Google Patents

Abstract

To provide a water-in-oil type emulsion cosmetic that becomes a uniform cosmetic film without becoming sticky and slimy when applied, and has excellent emulsion stability.SOLUTION: A water-in-oil type emulsion cosmetic contains the following components (A) to (E): (A) volatile hydrocarbon oil; (B) one or more kinds selected from dimethyl polysiloxane and disiloxane ; (C) ethanol; (D) metal oxide; (E) nonionic surfactant; and (F) water, in which the content mass ratio (A)/(B) of the component (A) and the component (B) is 0.1 to 10.SELECTED DRAWING: None

Description

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

Water-in-oil emulsified cosmetics are skin care cosmetics and make-up cosmetics, especially cosmetics often used in base makeup items such as foundations.

Emulsified cosmetics that can give not only water but also oil to the skin have been studied many times in the cosmetics field as high value-added dosage forms. These emulsified cosmetics are roughly divided into oil-in-water emulsified cosmetics and water-in-oil emulsified cosmetics. Water-in-oil emulsified cosmetics cover the surface of the skin with an oil film, prevent evaporation of water, and protect the skin from dryness, so they have excellent emollient, moisturizing, and treatment effects on the skin. be. Until now, water-in-oil emulsified cosmetics have been devised in various ways in order to satisfy both the feeling of use such as smooth spread and adhesion to the skin and the stability over time.

For example, techniques relating to water-in-oil emulsified cosmetics containing hydrophobic silica, water-soluble polymers, lipophilic surfactants having an HLB value of 7 or less, oil, and water (see, for example, Patent Document 1) and polyether-modified silicones. Contains 0.05 to 10.0% by weight of water-soluble polymer electrolyte, 0.05 to 5.0% by weight of inorganic salt and / or organic salt, 0.05 to 5.0% by weight of glycerin branched fatty acid and / Or a technique relating to a water-in-oil emulsified cosmetic containing one or both of an unsaturated fatty acid ester, a sorbitan branched fatty acid, and / or an unsaturated fatty acid ester (see, for example, Patent Document 2). There is. In addition, one or more selected from glycerin monooleate, glycerin monoisostearate and polyoxyethylene glyceryl monoisostearate, an aqueous component, and an oily component containing (C) solid oil are included to satisfy specific conditions. There is a technique relating to a water-in-oil emulsified composition characterized by (see, for example, Patent Document 3).

Japanese Unexamined Patent Publication No. 2006-160714 JP-A-2002-348210 Japanese Unexamined Patent Publication No. 2008-24630

An object of the present invention is to provide a water-in-oil emulsified cosmetic which has a uniform cosmetic film without slipping at the time of application and has excellent emulsification stability.

In view of these circumstances, the present inventors have diligently studied in order to realize a quality in which a water-in-oil emulsified cosmetic has a smooth spread on the skin and a uniform cosmetic film. A water-in-oil emulsified cosmetic containing a nonionic surfactant, volatile hydrocarbons, and short-chain long silicones among volatile silicones are used in combination at a ratio of 0.1 to 1.0. Furthermore, they have found that by further containing ethanol, it is possible to realize a water-in-oil emulsified cosmetic that spreads smoothly without sujimura and finishes with a uniform cosmetic film, and based on these findings, the present invention has been completed.

That is, the present invention describes the following components (A) to (E);
(A) Volatile hydrocarbon oil (B) One or more selected from dimethylpolysiloxane and disiloxane (C) Ethanol (D) Metal oxide (E) Nonionic surfactant (F) Water It is intended to provide a water-in-oil emulsified cosmetic containing, and the content mass ratio (A) / (B) of the component (A) to the component (B) is 0.1 to 10.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a water-in-oil emulsified cosmetic which has a uniform cosmetic film without slipping at the time of application and has excellent emulsification stability.

Details of the present invention will be described below. In addition, in this specification, "~" means the range including the numerical values before and after it. Further, the "average particle diameter" in the present invention is a median diameter D50 value obtained by measurement with an image analyzer (Luzex AP, manufactured by Nireco Corporation). In the case of an asymmetrical shape, in the present invention, the median diameter D50 obtained from the distribution of the largest particle size is used as the average particle size.

The component (A) volatile hydrocarbon oil in the present invention is a hydrocarbon oil having a boiling point of 260 ° C. or lower at normal pressure. Such volatile hydrocarbons are not particularly limited, and examples thereof include light isoparaffin, isododecane, isohexadecane and the like, and these may be used alone or in combination of two or more. Examples of commercially available products include IP solvent 1620, IP solvent 2028 (all manufactured by Idemitsu Petrochemical Co., Ltd.), PERMETHYL 99A (manufactured by PRESPERS), and the like. Among these, one or more selected from the group consisting of isododecane, isohexadecane, and light liquid isoparaffin is preferable from the viewpoint of non-slip and uniform cosmetic film, and it is further said that the volatile hydrocarbon is isododecane. preferable.

In the present invention, the content of the component (A) is not particularly limited, but is preferably 1 to 30% by mass (hereinafter, simply abbreviated as "%"), more preferably 5 to 20%, based on the total amount of the cosmetic. This range is more preferable because it is more excellent in non-slip and uniform cosmetic film.

One or more selected from the dimethylpolysiloxane and disiloxane of the component (B) in the present invention is dimethylshirokinsan or a polymer thereof represented by the following general formula.
(CH ₃ ) ₃ SiO [Si (CH ₃ ) ₂ O] _n (CH ₃ ) ₃ (1)
(In the formula, n is 0 to 2000.)
The disiloxane of the component (B) in the present invention is the compound in the above formula (1) where n = 0. The component (B) in the present invention is not particularly limited as long as it is usually used in cosmetics, and those having various kinematic viscosities can be used. For example, the kinematic viscosity at 25 ° C. is 0.65 to 10000CS, preferably 0.65 to 100CS, more preferably 0.65 to 10CS, and even more preferably 0.65 to 5CS. This range is more preferable because it is more excellent in non-slip and uniform cosmetic film. In the present invention, it is preferable to use one or more selected from volatile dimethylpolysiloxane and disiloxane from the viewpoint of non-slip and uniform cosmetic film. Here, the term "volatile" refers to a substance that volatilizes at a low boiling point (boiling point at normal pressure is 260 ° C. or lower) at room temperature. Commercially available products can be used as the component (B) of the present invention, for example, KF-96L-0.65cs, KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-. Examples thereof include 96L-5cs, KF-96L-10cs, KF-96L-20cs, KF-96L-50cs, KF-96L-100cs, and KF-96L-1000cs (all manufactured by Shin-Etsu Chemical Co., Ltd.).

In the present invention, the content of the component (B) is not particularly limited, but is preferably 0.5 to 30%, more preferably 1 to 20%, based on the total amount of the cosmetic. This range is more preferable because it is more excellent in non-slip and uniform cosmetic film.

In the present invention, the above-mentioned component (A) and component (B) content mass ratio (A) / (B) = 0.1 to 10, and can be obtained by appropriately containing the component (A) within this range. Further, by specifying the content ratio, a higher effect can be expected, which is preferable. Such a quantity ratio is not particularly limited, but the lower limit of the content mass ratio (A) / (B) of the component (A) and the component (B) is preferably 0.1 or more, more preferably 0.5 or more. Preferably, 0.7 or more is even more preferable. The upper limit is preferably 10 or less, more preferably 5 or less, and even more preferably 3 or less. This range is more preferable because it is more excellent in non-slip and emulsion stability. Further, by setting the components (A) and (B) of the present invention to such a content mass ratio, a water-in-oil emulsified cosmetic using a volatile oil mainly composed of a cyclic silicone oil that has been conventionally used. We obtained the findings that a feeling of use close to that of the above can be obtained.

The component (C) in the present invention is ethanol. As the component (C) in the present invention, any one that is usually used for cosmetics can be used, and for example, commercially available ones such as 95 degree undenatured ethanol and various ethanols are used. You may.

In the present invention, the content of the component (C) is not particularly limited, but is preferably 0.1 to 25%, more preferably 0.2 to 20%, and 0.5 to 15% with respect to the total amount of the cosmetic. Especially preferable. This range is more preferable because it is more excellent in non-slip and uniform cosmetic film.

The component (D) metal oxide in the present invention has a spherical, plate-like, needle-like shape, fumes, fine particles, pigment grade or other particle size, and porosity, as long as it is a metal oxide usually used in cosmetics. It is not particularly limited by the particle structure such as non-porous material, and any of them can be used. The component (D) of the present invention is, for example, Al (aluminum), Mg (magnesium), Sn (tin), Zn (zinc), Co (cobalt), Fe (iron), Zr (zirconium), Ti (titanium), And oxides of elements such as Ce (cerium) can be used. The component (D) of the present invention has an action of coloring cosmetics and imparting covering power. Specifically, aluminum oxide, magnesium oxide, tin oxide, zinc oxide, yellow iron oxide, and red color. Examples thereof include iron oxide, iron oxide such as black iron oxide, titanium dioxide, cerium oxide and the like, and these may be used alone or in combination of two or more. Among these, one or more selected from the group consisting of zinc oxide, titanium dioxide and iron oxide is preferable, and zinc oxide and / or titanium dioxide is more preferable.

The metal oxide in the present invention may be a silicone compound, silane treatment, fluorine compound, metal soap, collagen, hydrocarbon, higher fatty acid, lecithin, higher alcohol, ester, wax, wax, amino acid, surfactant, etc., if necessary. The surface treatment may be performed by a known method, or a composite of these may be used. In the present invention, in particular, by hydrophobizing the surface of the metal oxide, aggregation of the metal oxides can be prevented, and emulsion stability and a uniform decorative film are more excellent, which is more preferable. The surface treatment agent is preferably one or more selected from the group consisting of metal soap, amino acid, silicone compound and lecithin, and one or more selected from the group consisting of metal soap, amino acid and silicone compound. More preferred. Here, the metal soap of the surface treatment agent in the present invention is neutralized with a fatty acid and a base, and examples thereof include zinc stearate, magnesium stearate, zinc myristate, and zinc laurate. Further, the amino acid of the surface treatment agent in the present invention includes not only amino acids such as theanine but also amino acid salts and derivatives thereof. For example, N-acylated amino acid or a salt thereof and the like can be mentioned, and specific examples thereof include disodium stearoyl glutamic acid and sodium lysine dilauroyl glutamic acid. Further, examples of the silicone compound of the surface treatment agent in the present invention include methylpolysiloxane and hydrogenpolysiloxane. Further, examples of the silane treatment of the surface treatment agent in the present invention include triethoxycaprylylsilane, aminopropyltriethoxysilane and the like. In the present invention, it is preferable to use a plurality of surface-treated metal oxides in combination, and in particular, it is preferable to use two or more types of metal oxides surface-treated with different surface treatment agents in combination. The treatment amount of the surface treatment agent for the metal oxide in the present invention is not particularly limited, but is preferably 0.5 to 5%, more preferably 1 to 4%, still more preferably 2 to 3%.

In the present invention, the content of the component (D) is not particularly limited, but is preferably 0.1 to 25%, more preferably 0.5 to 20%, still more preferably 1 to 15%, based on the total amount of the cosmetic. .. This range is more preferable because it is superior to a uniform cosmetic film.

The component (E) nonionic surfactant in the present invention is a surfactant having both a lipophilic group and a hydrophilic group in the same molecule and exhibiting nonionic properties when dissolved in water. The HLB of the component (E) in the present invention is not particularly limited, but since the present invention is a water-in-oil type, the HLB is preferably 7 or less, more preferably 5 or less, from the viewpoint of emulsion stability. In the present invention, the lower limit of HLB is not particularly limited, and is preferably 1 or more, and more preferably 2 or more. The component (E) in the present invention is not particularly limited as long as it is a nonionic surfactant, and may be linear or may contain a branched structure, and if necessary. It can be contained alone or in combination of two or more.

Here, in the present invention, HLB is a value representing the balance between hydrophilicity and lipophilicity of the surfactant, and can be specifically obtained by the following upstream formula in the present invention.
HLB = 7 + 11.7log (Mw / Mo)
(Here, Mw represents the molecular weight of the hydrophilic base, and Mo represents the molecular weight of the new oil base.)

In the present invention, the component (E) is not particularly limited as long as it is a nonionic surfactant, and although it can be obtained by appropriately selecting it, it is preferable to use two or more of them in combination because a higher effect can be expected. In particular, it is more preferable to use (E1) a silicone surfactant and (E2) a sugar fatty acid ester or a glycerin fatty acid ester because the emulsion stability is more excellent.

In (E1), the silicone surfactant is, for example, polyglycerin-modified silicone such as laurylpolyglyceryl 3-polydimethylsiloxyethyl dimethicone, PEG-9 methylether dimethicone, PEG-10 dimethicone, or cetyl PEG / PPG-10 / 1 dimethicone. , PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG-9 polydimethylsiloxyethyl dimethicone, polyoxyethylene / butylene / dimethylpolysiloxane copolymer, polyoxyethylene / polyoxypropylene -Examples include polyether-modified silicones such as butylene-dimethylpolysiloxane copolymers. Among these, polyether-modified silicone or polyglycerin-modified silicone is preferable, and polyether-modified silicone is more preferable. Specifically, one or more selected from the group consisting of cetyl PEG / PPG-10 / 1 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, and lauryl PEG-9 polydimethylsiloxyethyl dimethicone is preferable.

In (E2), the sugar fatty acid ester is an ester of fatty acid and sugar. The fatty acid may be branched or non-branched, and the number of carbon atoms of the fatty acid is not particularly limited, but the lower limit is preferably 8 or more, more preferably 10 or more, and even more preferably 14 or more. The upper limit is preferably 22 or less, more preferably 18 or less. This range is more preferable because it is more excellent in emulsion stability. The sugar in the sugar fatty acid ester is not particularly limited, and examples thereof include glucose, sucrose, and sorbitan. The sugar fatty acid ester is not particularly limited, but specifically, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoisostearate, sorbitan diisostearate, sorbitan triisostearate, mono. Examples thereof include sorbitan stearate, sorbitan sesquistearate, sorbitan distearate, sorbitan sesquiisostearate, sorbitan triisostearate, methyl glucose sesquistearate, and sucrose fatty acid ester. Among these, one or more selected from the group consisting of sucrose fatty acid ester, sorbitan sesquioleate, and sorbitan sesquiisostearate is preferable.

In (E2), the glycerin fatty acid ester is an ester of fatty acid and glycerin. In the present invention, the glycerin of the glycerin fatty acid ester may be polymerized, and the degree of polymerization of glycerin is not particularly limited, but the lower limit is preferably 1 or more, and more preferably 2 or more. The upper limit is preferably 16 or less, more preferably 10 or less, and more preferably 6 or less. Within this range, it is more preferable because it is less slippery and is more excellent in emulsification stability. The glycerin fatty acid ester is not particularly limited, but specifically, polyglyceryl stearate-10, polyglyceryl diisostearate-10, polyglyceryl tristearate-10, polyglyceryl isostearate-6, polyglyceryl trioleate-5, lauric acid. Examples thereof include polyglycerin fatty acid esters such as polyglyceryl-10, polyglyceryl-2 isostearate, and polyglyceryl-2 diisostearate. Among these, one or more selected from the group consisting of polyglyceryl laurate-10, polyglyceryl-2 isostearate, and polyglyceryl-2 diisostearate is preferable.

In the present invention, the content of the component (E) is not particularly limited, but is preferably 0.1 to 6%, more preferably 0.5 to 4%, based on the total amount of the cosmetic. This range is more preferable because it is more excellent in uniform cosmetic film and emulsion stability.

As the component (F) water in the present invention, tap water may be used, or purified water purified by distillation or the like, hot spring water, deep water or the like may be used. In addition, plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose water may be used.

In the present invention, the content of the component (F) is not particularly limited, but is preferably 10 to 60%, more preferably 15 to 50%, based on the total amount of the cosmetic. This range is more preferable because it is superior in emulsification stability and non-slip.

The component (G) in the present invention is an oil agent that is liquid at 25 ° C. other than the components (A) and (B). The component (G) in the present invention is not particularly limited as long as it is usually used in cosmetics, and examples thereof include hydrocarbon oils, ester oils, higher alcohols, silicone oils, and fluorine-based oils. For example, hydrocarbon oils such as liquid paraffin, squalane, polybutene, polyisobutylene, jojoba oil, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, octyl palmitate, tri2-ethylhexanoic acid. Glyceryl, polyglyceryl diisostearate, polyglyceryl isostearate, polyglyceryl decaethylhexanoate-10, ethylhexyl hydroxystearate, diethylhexyl succinate, tritridecyl trimerite, diisostearyl malate, polyglyceryl triisostearate, isotolideyl isononanoate, dioctanoic acid Ester oils such as neopentyl glycol, higher alcohols such as oleyl alcohol, octyldodecanol, decyltetradecanol, dimethiconol, methylphenylpolysiloxane, cyclopentasiloxane, trifluoropropylcyclotetrasiloxane, trifluoropropylcyclopentasiloxane, etc. Examples thereof include fluorinated oils such as silicone oil and perfluoropolyether. In the present invention, one or a combination of two or more of these can be used.

In the present invention, although the component (G) and the components (A) and (B) can be obtained by appropriately containing them, it is preferable because a higher effect can be expected by specifying the mass ratio of the components (G) and the components (A) and (B). .. The content mass ratio (G) / [(A) + (B)] of such components (G), (A) and (B) is not particularly limited, but (G) / [(A) + (B). )] Is preferably larger than 0, more preferably 0.0001 or more, and even more preferably 0.001 or more. The upper limit is preferably 1 or less, more preferably 0.7 or less, and even more preferably 0.1 or less. This range is more preferable because it is more excellent in non-slip and uniform cosmetic film.

The component (H) oil-soluble film-forming agent in the present invention is a film-forming agent exhibiting solubility in oil. Here, to show solubility in oil means that an oil as a solvent (for example, volatile silicone oil such as cyclic silicone oil or short-chain dimethicone, volatile hydrocarbon, etc.) and a film forming agent are mixed at 60 ° C. It means something that becomes uniform. In the present invention, the film-forming agent is not particularly limited, but a solution obtained by dissolving 40% in a soluble solvent is applied to a glass plate with a 400 μm-thick applicator, and a film is formed after drying at room temperature for 24 hours. be. Specifically, hydrocarbon film forming agents such as polyethylene and polypropylene, Acrylate copolymers, acrylic acid polymer film forming agents such as (styrene / Acrylate) copolymers, trimethylsiloxysilicic acid, polymethylsilsesquioxane, (Acrylates). / Dimethicone) Examples thereof include silicone film forming agents such as copolymers. Among these, a silicone film-forming agent is preferable, trimethylsiloxysilicic acid or (acrylate / dimethicone) copolymer is more preferable, and trimethylsiloxysilicic acid is further preferable.

The content of the component (H) in the present invention is not particularly limited, but is preferably 0.1 to 10%, more preferably 0.5 to 5%, still more preferably 1 to 3%, based on the total amount of the cosmetic. .. This range is more preferable because it is less slippery and is superior to a uniform cosmetic film.

The component (I) polyalkylene glycol in the present invention is a glycol obtained by polymerizing a polyoxyalkylene group. The polyoxyalkylene group in the present invention is not particularly limited, but polypropylene glycol in which the propylene oxide constituent unit is polymerized, polyethylene glycol in which the ethylene oxide constituent unit is polymerized, polybutylene glycol in which the butylene oxide constituent unit is polymerized, or these are copolymerized. Things etc. can be mentioned. The properties of the polyalkylene glycol in the present invention are not particularly limited, but may be any properties of liquid, solid, or a mixture thereof. For example, polypropylene glycol, tripropylene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol and the like can be mentioned. In the present invention, one or more selected from the group consisting of tripropylene glycol, dipropylene glycol, and polyethylene glycol is preferable.

The content of the component (I) in the present invention is not particularly limited, but is preferably 1 to 20%, more preferably 3 to 15%, still more preferably 5 to 10%, based on the total amount of the cosmetic. This range is more preferable because it is less slippery and is superior to a uniform cosmetic film.

In addition to the above components (A) to (I), the water-in-oil emulsified cosmetic of the present invention includes components other than those normally used in cosmetics, for example, components (A), (B) and (G). Oily components, powders other than component (D), surfactants other than component (E), fibers, alcohols (monohydric alcohols other than component (C), polyhydric alcohols, etc.), water-soluble polymers, components Aqueous components such as moisturizers other than (I), sugars, antioxidants, antifoaming agents, beauty components, preservatives, fragrances and the like can be contained within a range that does not interfere with the effects of the present invention.

The water-in-oil emulsified cosmetic of the present invention can be produced according to a conventional method. For example, an aqueous classification containing the components (C), (F) and (I) is added to the oily classification containing the components (A), (B), (D), (E), (G) and (H). It can be obtained by emulsification, but is not limited to this production method.

The properties of the water-in-oil emulsified cosmetic of the present invention are not particularly limited, and may be any of liquid, gel, cream, semi-solid, solid, stick and the like.

The water-in-oil emulsified cosmetic of the present invention includes, for example, skin care cosmetics such as milky lotion and lotion, pack cosmetics, wash pigments, massage cosmetics, hair cosmetics, sunscreens, body creams and the like. Body cosmetics, beauty liquids such as daytime beauty liquids, eye creams such as eye creams, lip essences, lip creams and other lip care cosmetics, foundations, foundations, concealers, eye shadows, cheeks, lipsticks , Makeup cosmetics such as mascara and eyebrow. Among these, make-up cosmetics are preferable, and one or more selected from the group consisting of foundation, foundation, and concealer are more preferable.

Hereinafter, the present invention will be described in detail with reference to examples. It should be noted that these do not limit the present invention in any way.

Examples 1 to 20 and Comparative Examples 1 to 6: Water-in-oil liquid foundations Prepare the water-in-oil liquid foundations of the formulations shown in Tables 1 to 3 below, and b. No slyness, b. Uniform cosmetic film, c. The emulsion stability was evaluated by the following evaluation method. The results are also shown in Tables 1 to 3.

(Evaluation method)
For the following items (a) and (b), each sample was tested for use by 20 specialized panels. Each panel person applies each sample to the entire face, and for (a), it is good that 0.2 mL is not felt when applied to the skin and the application operation within 10 seconds is sufficient. As for (b), the one having a uniform cosmetic film after application was regarded as good, and the judgment was made according to the following criteria. Here, the specialized panel refers to a woman in her 20s to 50s who has been trained in sensory evaluation of cosmetics and can be evaluated according to a certain standard.

<Evaluation items>
(A) No slipperiness (B) Uniform cosmetic film

<Criteria>
(Judgment): (Evaluation)
A: 16 or more out of 20 answered that 16 or more were good B: 11 or more and 15 or less out of 20 answered that it was good C: 6 or more and 10 or less out of 20 answered that it was good D: 20 out of 20 5 or less answered that it was good

(Evaluation method)
The following items (c) were stored in a constant temperature bath at 40 ° C. for each sample filled with 50 g in a No. 6 standard bottle, and the emulsification stability was visually confirmed and judged according to the following criteria.

<Evaluation items>
(C) Emulsification stability

<Criteria>
(Judgment): (Evaluation)
A: No change at 1 month B: Separation at 1 month C: Separation at 2 weeks D: Separation at 1 week Here, if separation is occurring Refers to a bottle whose supernatant can be confirmed by tilting the standard bottle.

* 1: IP solvent 1620 (manufactured by Idemitsu Kosan Co., Ltd.)
* 2: 3% zinc laurate treatment * 3: 3% triethoxycaprylylsilane treatment

(Production method)
A: Ingredients (1) to (15) are uniformly mixed and dissolved at 80 ° C.
B: Ingredients (16) to (23) are added to A and uniformly mixed and dispersed by a roll mill.
C: Ingredients (24) to (27) are uniformly mixed.
D: Add C to B and emulsify with a disper mixer at 2000 rpm for 5 minutes at room temperature.
E: D was filled in a container to obtain a water-in-oil liquid foundation.

As is clear from the results in Tables 1 to 3, the examples of the present invention were excellent in non-slip, uniform cosmetic film, and emulsion stability as compared with the comparative examples.
On the other hand, in Comparative Example 1, since the volatile hydrocarbon oil was not contained, the decorative film was slippery, the uniformity of the film was impaired, and satisfactory quality could not be obtained. Further, in Comparative Example 2, liquid paraffin, which is a non-volatile hydrocarbon oil, was used instead of the volatile hydrocarbon oil, but the decorative film was slippery, the uniformity of the film was impaired, and satisfactory quality could not be obtained. .. Further, in Comparative Example 3, since dimethylpolysiloxane was not contained, the film was slippery, a uniform cosmetic film could not be formed, and the emulsion stability was poor, so that satisfactory quality could not be obtained. In Comparative Example 4, since ethanol was not contained, the film was slippery and satisfactory quality could not be obtained. In Comparative Example 5, the A / B was less than 0.1, and although the uniform cosmetic film and the emulsion stability were slightly good, the film was slippery and satisfactory quality could not be obtained. In Comparative Example 6, the A / B was larger than 10, and although there was no slippage and the uniformity of the cosmetic film was a little, a quality satisfactory in emulsion stability could not be obtained.

Example 21: Water-in-oil BB cream A water-in-oil BB cream was prepared by the composition and production method shown below.
(Composition) (%)
(1) Isododecane 15
(2) Dimethylpolysiloxane (25 ° C. kinematic viscosity 2CS) 10
(3) Lauryl PEG-9
Polydimethylsiloxyethyl dimethicone 0.8
(4) PEG-9 Polydimethylsiloxyethyl Dimethicone 0.4
(5) Sorbitan sesquiisostearate 0.6
(6) Neopentyl glycol diethylcaproate 10
(7) 2-Ethylhexyl paramethoxycinnamate 5
(8) 2- (4-Diethylamino-2-hydroxybenzoyl)
Benzoic acid hexyl ester 2
(9) Trimethylsiloxysilicic acid 2
(10) Disodium N-stearoyl-L-glutamic acid
3% treated titanium oxide (average particle size 300 nm) 9
(11) Triethoxycaprylylsilane 2% treated black iron oxide 0.3
(12) Triethoxycaprylylsilane 2% treated yellow iron oxide 1.8
(13) Triethoxycaprylylsilane 2% treated Bengala 0.6
(14) Triethoxycaprylylsilane 2% treated talc 1
(15) Dimethyl distearyl ammonium hectorite 1.5
(16) Benzyldimethylstearylammonium hectorite 0.6
(17) Spherical silica 5
(18) Remaining amount of purified water (19) Ethanol 5
(20) Tripropylene glycol 10

(Production method)
A: The components (1) to (9) are heated to 80 ° C. and uniformly mixed and dissolved.
B: Ingredients (10) to (17) are added to A and uniformly mixed and dispersed by a roll mill.
C: Ingredients (18) to (20) are uniformly mixed.
D: Add C to B and emulsify with a disper mixer at 2000 rpm for 5 minutes at room temperature.
E: D was filled in a container to obtain a water-in-oil BB cream.

The water-in-oil BB cream of Example 21 obtained as described above was excellent in all of "non-slippery", "uniform cosmetic film" and "emulsification stability".

Example 22: Water-in-oil shaking foundation A water-in-oil shaking foundation was prepared by the composition and production method shown below.
(Composition) (%)
(1) Isododecane 15
(2) Dimethylpolysiloxane (25 ° C. kinematic viscosity 2CS) 10
(3) Cetyl PEG / PPG-10 / 1 dimethicone 1.2
(4) Polyglyceryl diisostearate-2 0.6
(5) Neopentyl glycol diethylcaproate 10
(6) 2-ethylhexyl paramethoxycinnamate 5
(7) 2- (4-Diethylamino-2-hydroxybenzoyl)
Benzoic acid hexyl ester 2
(8) (Acrylate / Dimethicone) Copolymer 2
(9) Titanium oxide treated with 3% zinc laurate
(Average particle size 300 nm) 9
(10) Triethoxycaprylylsilane 2% treated black iron oxide 0.3
(11) Triethoxycaprylylsilane 2% treated yellow iron oxide 1.8
(12) Triethoxycaprylylsilane 2% treated Bengala 0.6
(13) Triethoxycaprylylsilane 2% treated talc 1
(14) Spherical silica 5
(15) Remaining amount of purified water (16) Ethanol 5
(17) Tripropylene glycol 10

(Production method)
A: The components (1) to (8) are heated to 80 ° C. and uniformly mixed and dissolved.
B: Ingredients (9) to (14) are added to A and uniformly mixed and dispersed by a roll mill.
C: Ingredients (15) to (17) are uniformly mixed.
D: Add C to B and emulsify with a disper mixer at 2000 rpm for 5 minutes at room temperature.
E: D was filled in a container to obtain a water-in-oil shaking foundation.

The water-in-oil shaking foundation of Example 22 obtained as described above was excellent in all of "non-slip", "uniform cosmetic film", and "emulsification stability".

Claims (9)

The following components (A) to (E);
(A) Volatile hydrocarbon oil (B) One or more selected from dimethylpolysiloxane and disiloxane (C) Ethanol (D) Metal oxide (E) Nonionic surfactant (F) Water A water-in-oil emulsified cosmetic containing the component (A) and the content mass ratio (A) / (B) of the component (B) of 0.1 to 10. Two types of metal oxides whose component (D) metal oxide has been surface-treated with one or more treatment agents selected from the group consisting of metal soap, amino acids or derivatives thereof, triethoxycaprylylsilane and silicone. The water-in-oil emulsified cosmetic according to claim 1, which contains the above. The water-in-oil emulsified cosmetic according to claim 1 or 2, further comprising an oil agent liquid at 25 ° C. other than the components (A) and (B) as the component (G). Component (G) In addition to the components (A) and (B), an oil that is liquid at 25 ° C., and the mass ratio (G) / {(A) + (B) in the total of the components (A) and (B). )} Is greater than 0 and less than or equal to 1. The water-in-oil emulsified cosmetic according to claim 3. The water-in-oil emulsified cosmetic according to any one of claims 1 to 4, wherein the component (A) is one or more selected from the group consisting of isododecane, isohexadecane, and light liquid isoparaffin. The water-in-oil emulsified cosmetic according to any one of claims 1 to 5, wherein the kinematic viscosity of the component (B) at 25 ° C. is 1CS to 5CS. The water-in-oil emulsified cosmetic according to any one of claims 1 to 6, wherein the component (E) is (E1) a silicone surfactant and (E2) a sugar fatty acid ester or a glycerin fatty acid ester. The water-in-oil emulsified cosmetic according to any one of claims 1 to 7, further comprising the component (H) oil-soluble film-forming agent. The water-in-oil emulsified cosmetic according to any one of claims 1 to 8, further comprising the component (I) polyalkylene glycol.