JP7273479B2 - Oil-in-water cosmetic composition - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act May 1, 2017 Distribute samples to Kose Cosmeport Co., Ltd.

Article 30, Paragraph 2 of the Patent Act applied August 1, 2017 Sold products to Kose Cosmeport Co., Ltd.

The present invention relates to an oil-in-water cosmetic composition containing perfume-containing microcapsules.

Conventionally, microcapsules encapsulating fragrances have been widely used in laundry detergents and deodorants, and have been expected to have effects such as sustained release of pleasant fragrances (Patent Documents 1 and 2). Microcapsules are produced by chemical methods such as condensation polymerization, physicochemical methods such as coacervation, drying in liquid, melting dispersion cooling, pan coating, suspension in air, and spray drying. There are mechanical methods such as
As a chemical method by condensation polymerization, microcapsules are produced with a membrane wall made of melamine resin (Patent Document 1) made from melamine, polyurethane resin or polyurea resin (Patent Document 3) made from polyfunctional isocyanate, or the like. A method is reported.
On the other hand, a method has been reported in which microcapsules can be produced using a novel composite coacervation system that does not use gelatin by mixing an aqueous solution of a specific cellulose and an aqueous solution of a specific copolymer and causing phase separation. (Patent Document 4).
Additionally, in capsules prepared by the coacervation method, the inclusion of a fatty component comprising hydrogenated oil or hydrogenated fat or cocoa butter or mixtures thereof in the core results in a core comprising flavor and/or fragrance materials from the shell. A method for suppressing leakage has also been reported (Patent Document 5).

Japanese Patent Publication No. 2012-514666 JP 2006-249326 A JP-A-11-188257 JP-A-2000-33259 Japanese Patent Publication No. 2013-533251

Consumers demand long-lasting fragrance as cosmetics. However, when the perfume is contained in the microcapsules having a film wall made of melamine resin as described in Patent Document 1 and used in cosmetics, there are cases where the fragrance does not last long. In addition, when a coacervated capsule containing a hydrogenated oil or hydrogenated fat or cocoa butter or a mixture thereof shown in Patent Document 5 and containing a perfume is used in a cosmetic, the scent lasts poorly and the capsule In some cases, the stability over time was poor.

Accordingly, an object of the present invention is to obtain a cosmetic composition which is excellent in stability over time, intensity of scent when in contact with a cosmetic film after a long period of time after application, and absence of stickiness during use. and

The inventors of the present invention attempted to make the fragrance last for a long time after application of the cosmetic by containing the fragrance in microcapsules when blending the fragrance into the cosmetic. Furthermore, as a method for realizing a strong scent after a long period of time, the present inventors disintegrated the capsule by contacting the cosmetic film with a hand or finger after a long period of time from the application of the formulation. , searched for a new method to induce the generation of fragrance.
A cosmetic containing perfume in a microcapsule having a film wall made of the melamine resin of Patent Document 1 or the polyurea resin of Patent Document 3 is used as a cosmetic film after a long period of time after the cosmetic is applied. Even if the microcapsules are touched with a hand or a finger, it is physically difficult to disintegrate the capsules due to the strong film wall of the microcapsules, and it is difficult to induce the generation of fragrance. In addition, using a cosmetic containing a perfume in a coacervated capsule containing hydrogenated oil or hydrogenated fat or cocoa butter or a mixture thereof shown in Patent Document 5, and applying the cosmetic Even if the cosmetic film was touched with a hand or a finger after a long period of time, generation of fragrance was insufficient.

Therefore, as a result of intensive studies, the present inventors have found emulsified droplets containing an oil agent having a water holding capacity of 100% or more, and microcapsules containing an anionic polymer, a monovalent metal salt, a polyvalent metal salt, and a fragrance. It has been found that an oil-in-water cosmetic composition containing is excellent in fragrance intensity when in contact with a cosmetic film after a long period of time from application. Furthermore, the inventors have also found that the oil-in-water cosmetic composition has excellent stability over time and is non-sticky during use.

That is, the present invention
component (A) emulsified droplets containing an oil having a water holding capacity of 100% or more;
Components (B1) to (B4) below
Microcapsules containing component (B1) anionic polymer, component (B2) monovalent metal salt, component (B3) polyvalent metal salt, component (B4) fragrance,
To provide an oil-in-water cosmetic composition containing
In the present invention, the microcapsules may be coacervated microcapsules.
In addition, the present invention may further contain component (C) polyhydric alcohol.
Furthermore, in the present invention, the content mass ratio (A)/(C) of component (A) and component (C) may be 0.005 to 0.5.
The present invention may also contain component (D) polyethylene glycol fatty acid ester.
Further, in the present invention, the content mass ratio (A)/(D) of component (A) and component (D) may be 0.5-3.

The oil-in-water cosmetic composition of the present invention is excellent in terms of stability over time, intensity of scent when it comes into contact with a cosmetic film after a long period of time after application, and non-stickiness during use. It is a thing. Note that the effects described here are not necessarily limited, and may be any of the effects described in this specification.

The present invention will be described in detail below. It should be noted that the embodiment described below is an example of a representative embodiment of the present invention, and the scope of the present invention is not narrowly limited by this. Also, in this specification, "to" means a range including the numerical values before and after it.

<Component (A) Oil Agent Having Water Holding Power of 100% or More>
Component (A) in the present invention, an oil having a water holding power of 100% or more (hereinafter also referred to as "component (A) oil") refers to an oil having excellent water holding capacity. Here, the water holding power is a numerical value obtained by dividing the mass of water at 50°C that can be held in the oil at 50°C by the mass of the oil at 50°C and multiplying the quotient by 100.
In the present invention, the water-holding power of the oil agent is specifically evaluated as follows. That is, 10 g of the sample (oil agent) heated to 50° C. is weighed into a 200 mL beaker. While stirring at 3000 rpm with a disper mixer, slowly add water at 50° C. until the water drains from the sample. Measure the amount of water added (mass) until water begins to drain from the sample. The quotient is obtained by dividing the added amount by the mass of the sample, 10 g. The numerical value obtained by multiplying the quotient by 100 is the water holding capacity (%).
The water holding power of component (A) is preferably 120 to 800%, more preferably 150 to 600%, and even more preferably 200 to 550%, from the viewpoint of suppressing capsule collapse in the cosmetic film. Components (A) do not apply to oils with a water holding capacity of less than 100%. If an oil having a water-holding power of less than 100% is contained in place of component (A), the intensity of fragrance is low when it comes into contact with the cosmetic film after a long period of time after application, and the cosmetic becomes sticky during use.

The component (A) oil agent of the present invention is not particularly limited, but one or more of the following can be used as examples:
Examples of acylglutamic acid esters include dioctyldodecyl lauroylglutamate, di(cholesteryl or phytosteryl/behenyl/octyldodecyl) lauroylglutamate, di(cholesteryl or phytosteryl/octyldodecyl) lauroylglutamate, and the like;
shea butter;
Examples of polyglycerin fatty acid esters include polyglyceryl-6 isostearate, polyglyceryl-6 caprylate, (hydroxystearic acid/stearic acid/eicosanedioic acid) polyglyceryl-10, (eicosanedioic acid/tetradecanedioic acid) polyglyceryl-10, deca macadamia nuts fatty acid polyglyceryl-10 and the like;
Examples of dipentaerythrityl fatty acid esters include penta(hydroxystearic acid/isostearic acid) dipentaerythrityl, tetra(hydroxystearic acid/isostearic acid) dipentaerythrityl, hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl;
Cholesterol or cholesterol derivatives such as cholestanol, dehydrocholesterol, cholesteryl lanolin fatty acid, cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl ricinoleate, cholesteryl macadamia nut oil fatty acid, and the like;
phytosterols or phytosterol derivatives such as phytosteryl oleate, macadamia nut oil fatty acid phytosteryl;
Examples of dimer acid esters include dimer dilinoleic acid (phytosteryl/isostearyl/cetyl/stearyl/behenyl), di(isostearyl/phytosteryl) dimer dilinoleate, di(phytosteryl/isostearyl/cetyl/stearyl/ behenyl), dimer dilinoleyl dimer dilinoleate, dimer dilinoleyl bis(behenyl/isostearyl/phytosteryl) dimer dilinoleate, dimer dilinoleyl bisisostearyl dimer dilinoleate, etc.;
As adipates, such as (ethylhexanoic acid/stearic acid/adipic acid) glyceryl, bisdiglyceryl polyacyladipate-2, etc.; lanolin, lanolin alcohol, hydrogenated lanolin alcohol, lanolin fatty acid, and polyoxyalkylene-modified products thereof;

On the other hand, in the present invention, an example of "an oil having a water holding power of less than 100%" that is not included in the component (A) is vaseline (water holding power of about 18%).

The component (A) oil used in the present invention preferably has a viscosity at 30° C. of 10,000 mPa·s or more, more preferably 20,000 mPa·s or more, and even more preferably 20,000 mPa·s or more, as measured by a Brookfield viscometer. can be 30,000 mPa·s or more. In addition, the viscosity can be measured according to the second method of Viscosity Measurement Method, Standards for Cosmetic Ingredients, using a Brookfield viscometer.
The oil agent of component (A) used in the present invention preferably has a melting point of 25°C or higher, more preferably 28°C or higher, and even more preferably 30°C or higher, from the viewpoint of suppressing capsule collapse in the cosmetic film. be.
The component (A) oil used in the present invention is preferably 70° C. or lower, more preferably 65° C. or lower, even more preferably 60° C. or lower, still more preferably 55° C. or lower, from the viewpoint of suppressing capsule collapse in the cosmetic film. °C or lower.
In addition, the component (A) oil agent used in the present invention is preferably semi-solid, more particularly pasty at 25° C., from the viewpoint of stability over time and non-stickiness during use.

The component (A) oil used in the present invention is preferably
Di(octyldodecyl/phytosteryl/behenyl) lauroyl glutamate (water holding capacity is about 470%),
dimer dilinoleic acid (phytosteryl/isostearyl/cetyl/stearyl/behenyl) (water holding capacity is about 300%),
phytosteryl oleate (water holding capacity is greater than 100%),
hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl (water holding capacity is about 170%),
Bis-diglyceryl polyacyl adipate-2 (water holding power is about 190%), and macadamia nut oil fatty acid phytosteryl (water holding power is about 300%)
It may be one or a combination of two or more selected from.
These oil agents are particularly suitable for the composition of the present invention because they have high water holding capacity, high viscosity, and a melting point of 30° C. or higher.
In a particularly preferred embodiment of the invention, dimer dilinoleic acid (phytosteryl/isostearyl/cetyl/stearyl/behenyl), phytosteryl oleate, hexa(hydroxystearate/stearate/rosinate) dipentaerythrityl, macadamia nut oil fatty acid phytosteryl One or a combination of two or more selected from may be used. In particular, when carboxymethyl cellulose is contained as component (B1) anionic polymer in microcapsules containing components (B1) to (B4) described later, from the viewpoint of suppressing capsule collapse in the cosmetic film, Component (A) is one or a combination of two or more selected from dimer dilinoleic acid (phytosteryl/isostearyl/cetyl/stearyl/behenyl), phytosteryl oleate, and hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl. is preferred.

The oil agent of component (A) in the present invention is contained in emulsified droplets in the oil-in-water cosmetic composition. The content of the component (A) oil present in the emulsified droplets is not particularly limited. It is preferably 0.02 to 15% by mass, more preferably 0.02 to 10% by mass, still more preferably 0.2 to 8% by mass, still more preferably 0.2 to 7% by mass. Yes, more preferably 0.5 to 5% by mass.

When the emulsified droplets collapse when the oil-in-water cosmetic composition of the present invention is applied, the component (A) oil agent contained in the emulsified droplets can be released. Since the component (A) oil agent released from the emulsified droplets imparts a thickness to the cosmetic film when applied, it can be expected to suppress the disintegration of microcapsules containing the components (B1) to (B4) described later. Furthermore, the component (A) oil agent released from the emulsified droplets forms a part of the cosmetic film, which covers at least part of the surface of the microcapsules containing the components (B1) to (B4) from the outside. it is conceivable that. The cosmetic film containing the component (A) oil agent has excellent moisturizing and moisturizing properties, protects the microcapsules containing the components (B1) to (B4), and after a long period of time after application, components such as water are removed. In the cosmetic film after volatilization, it can be expected to suppress the collapse of the capsules and improve the intensity of the scent when it comes into contact.

<Microcapsules containing components (B1) to (B4)>
The microcapsules used in the present invention contain component (B1) anionic polymer, component (B2) monovalent metal salt, component (B3) polyvalent metal salt and component (B4) fragrance. The type of microcapsules is not particularly limited, but non-covalent capsules are preferable from the viewpoint that the capsules disintegrate when in contact with the cosmetic film and good fragrance intensity can be obtained. Among non-covalent capsules, coacervated microcapsules are more preferable from the viewpoint of suppressing collapse of the capsules in the cosmetic film. Each component will be specifically described below.

<Component (B1) anionic polymer>
The component (B1) anionic polymer is not particularly limited as long as it is a polymer having anionic properties and is usually used as a cosmetic. Specific examples include water-soluble polymers such as alginic acid, hyaluronic acid, gum arabic, carrageenan, chondroitin sulfate, gelatin, carboxymethylcellulose, carboxyvinyl polymer, and polyacrylic acid, and derivatives thereof. A species or two or more species can be used. In addition, these are not particularly limited depending on the origin such as natural or synthetic. Among them, carboxyl group-containing water-soluble polymers are preferred from the viewpoint of effectively encapsulating the component (B4) fragrance in the microcapsules, and gelatin, carboxymethylcellulose, and carboxyvinyl polymer are more preferred. Carboxyl group-containing polysaccharides are even more preferred, and carboxymethylcellulose is particularly preferred.

In addition, it is preferable to use component (B1) an anionic polymer and polyvinyl alcohol together from the viewpoint of effectively encapsulating an oily component in microcapsules and appropriately adjusting the strength of the membrane wall of the microcapsules. Polyvinyl alcohol is generally available as a hydrolysis product of polyvinyl acetate, preferably with a hydrolysis rate of 70 to 100 mol %. Also, two or more polyvinyl alcohols having different hydrolysis rates can be mixed and used. From the viewpoint of effectively encapsulating the component (B4) perfume in the microcapsules, the content of polyvinyl alcohol in the aqueous solution (hereinafter referred to as "microcapsule-containing aqueous solution") when forming the microcapsules is the component (B1) anion It is preferably 0.2 to 20 parts by mass, more preferably 0.4 to 10 parts by mass, per 1 part by mass of the flexible polymer.

The content of the component (B1) anionic polymer is not particularly limited, but from the viewpoint of stability over time and microcapsule formation efficiency, it is preferably 0.1 to 20% by mass in the microcapsule-containing aqueous solution. It is more preferably 0.2 to 10% by mass, and even more preferably 0.3 to 1% by mass.

<Component (B2) monovalent metal salt>
Component (B2) monovalent metal salt is not particularly limited as long as it is commonly used in cosmetics. Examples include sodium salts, potassium salts and the like. Preferably, sodium chloride, potassium chloride and the like are mentioned, and one or more of these can be used. The content of the component (B2) monovalent metal salt in the microcapsule-containing aqueous solution is preferably 0.01 to 20 parts by mass, preferably 0.05 to 15 parts by mass, per 1 part by mass of the component (B1) anionic polymer. Parts by mass are more preferred.

<Component (B3) polyvalent metal salt>
Component (B3) polyvalent metal salt is not particularly limited as long as it is commonly used in cosmetics. From the viewpoint of stability over time and microcapsule formation efficiency, one or more of calcium salts, magnesium salts, strontium salts, barium salts, aluminum salts and iron (III) salts are preferred. Inorganic salts such as chlorides, sulfates, nitrates and phosphates; and organic acid salts such as acetates, citrates, lactates, succinates and tartrates can be used as substances that provide these. However, one or more of chlorides, sulfates, acetates, citrates, and lactates are preferred from the viewpoint of stability over time and microcapsule formation efficiency. The content of the component (B3) polyvalent metal salt in the microcapsule-containing aqueous solution is preferably 0.0001 to 10 parts by mass, preferably 0.001 to 5 parts, per 1 part by mass of the component (B1) anionic polymer. Parts by mass are more preferred.

<Component (B4) Perfume>
The component (B4) perfume is not particularly limited as long as it is commonly used as a cosmetic. From the viewpoint of suppressing capsule collapse in the cosmetic film, it preferably has a flash point of 50 to 130° C., more preferably a boiling point lower than 290° C. and a CLogP value of 1.0 to 7.0. Here, CLogP is (1-octanol)/(water partition coefficient) of a chemical substance, and is a value obtained by calculation using the f-value method (hydrophobic fragment constant method). Specifically, the chemical structure of the compound is decomposed into its constituent elements, and the hydrophobic fragment constant (f value) of each fragment is calculated by accumulating (CLOG3 Reference Manual Daylight Software 4.34, Albert Leo, David Weininger , Version 1, March 1994).

Examples of (B4) fragrances described above include camphor, 1,8-cineole, α-pinene, β-pinene, camphene, l-menthol, menthone, iso-menthone, l-carvone, methylsalicylate, estragole, citronellal, Hydroxycitronellal, citronellol, geraniol, nerol, linalool, linalyl acetate, terpineol, terpinyl acetate, terpinen-4-ol, dimetol, borneol, thymol, p-cymene, p-methylacetophenone, eugenol, ethyl acetate, allyl amyl glycolate, allylheptanoate, allylcaproate, amyl acetate, iso-amyl acetate, iso-amyl butyrate, amyl propionate, anisaldehyde, anethole, benzaldehyde, pt-butylcyclohexyl acetate, o- t-butyl cyclohexyl acetate, dimethylbenzylcarbyl acetate, cis-3-hexenyl acetate, limonene, cis-jasmone, methyl amyl ketone, ethyl amyl ketone, fenchyl alcohol, hydrotropic alcohol, methyl anthranilate, phenoxyethanol, phenylacetaldehyde , phenylethyl alcohol, rose oxide, iso-amylsalicylate, acetylcedrene, amylcinnamic aldehyde, styraryl acetate, cedryl acetate, vanillin, heliotropine, methylionone, lyrial, γ-undecalactone, etc. or Two or more types can be used.
Also, natural essential oils containing these fragrant ingredients as main ingredients may be used, such as sage oil, basil oil, peppermint oil, spearmint oil, rosemary oil, eucalyptus oil, thyme oil, anise oil, bay oil, clove oil, coriander oil. , laurel leaf oil, lavandin oil, lavender oil, marjoram oil, orange oil, lemon oil, grapefruit oil, lime oil, bergamot oil, cedarwood oil, patchouli oil, geranium oil, etc. be able to.

The content of the component (B4) perfume is preferably 0.1 to 30% by mass, preferably 0.5 to 20% by mass, in the microcapsule-containing aqueous solution from the viewpoint of stability over time and microcapsule formation efficiency. more preferably 1 to 10% by mass.

In the microcapsules containing the components (B1) to (B4) of the present invention, in addition to the above components (B1) to (B4), any ingredients contained in ordinary cosmetics within a range that does not interfere with the effects of the present invention Ingredients, e.g. water-based ingredients, oil-based ingredients, powders, water-soluble polymers, film-forming agents, surfactants, oil-soluble gelling agents, organic modified clay minerals, resins, coloring agents, UV absorbers, preservatives, antibacterial agents, fragrances, antioxidants, pH adjusters, chelating agents, cosmetic ingredients, and the like.

Among the above optional components, the oily component is not particularly limited as long as it is commonly used in cosmetics. The content of the oily component that can be contained in the microcapsules containing the components (B1) to (B4) is 0.1 to 30 mass in the microcapsule-containing aqueous solution from the viewpoint of stability over time and microcapsule formation efficiency. %, more preferably 0.5 to 20% by mass, even more preferably 1 to 10% by mass.

In the oil-in-water cosmetic composition of the present invention, the content of the microcapsule-containing aqueous solution is not particularly limited, but from the viewpoint of stability over time and suppression of capsule collapse in the cosmetic film, It is preferably 0.1 to 5% by mass, more preferably 0.2 to 3% by mass, and even more preferably 0.3 to 1% by mass.

The average particle size of the microcapsules containing the components (B1) to (B4) of the present invention is not particularly limited as long as it is 0.001 to 1000 μm, but from the viewpoint of stability over time and suppression of capsule collapse in the cosmetic film, 0.01 to 100 μm is preferred, 0.1 to 50 μm is more preferred, and 1 to 20 μm is even more preferred. The average particle size can be measured with a laser diffraction/scattering particle size distribution analyzer LA-910 (manufactured by HORIBA, Ltd.).

Microcapsules containing the components (B1) to (B4) of the present invention can be produced by known methods. When coacervated microcapsules are used, for example, component (B4) perfume or any oily component is added to component (B1) aqueous anionic polymer solution, and stirred to obtain component (B2) through a dispersed state. ) By adding a monovalent metal salt, phase separation is induced and the component (B1) anionic polymer appears as a separate phase. After that, the component (B1) anionic polymer is insolubilized by adding the component (B3) polyvalent metal salt, whereby a microcapsule-containing aqueous solution can be obtained.

<Component (C) polyhydric alcohol>
The component (C) polyhydric alcohol that can be used in the present invention has a structure having two or more hydroxyl groups in a skeleton having 3 to 6 carbon atoms, and is not particularly limited as long as it is commonly used in cosmetics. do not have. Component (C) Polyhydric alcohol is not an essential component, but should be included in the oil-in-water cosmetic composition of the present invention from the viewpoint of stability over time, suppression of capsule collapse in the cosmetic film, and stickiness during use. is preferred.

Component (C) polyhydric alcohol that can be used in the present invention is not particularly limited, but includes 1,3-butylene glycol, dipropylene glycol, glycerin, diglycerin, propylene glycol, 1,2-pentanediol and the like. Therefore, one or more of them can be appropriately selected and used. Among them, 1,3-butylene glycol is preferably contained from the viewpoint of improving non-stickiness during use.

Although the content of the component (C) polyhydric alcohol is not particularly limited, it is preferably 2 to 30% by mass, more preferably 2 to 30% by mass in the oil-in-water cosmetic composition from the viewpoint of non-stickiness during use. 5 to 25% by mass, and more preferably 10 to 25% by mass.

The content ratio (A)/(C) of the component (A) oil agent and the component (C) polyhydric alcohol in the present invention is from the viewpoint of improving the stability over time of the oil-in-water cosmetic composition of the present invention. , preferably 0.005 to 0.5, more preferably 0.01 to 0.35, even more preferably 0.075 to 0.2.

<Component (D) polyethylene glycol fatty acid ester>
The component (D) polyethylene glycol fatty acid ester that can be used in the present invention refers to polyethylene glycol (hereinafter also referred to as PEG) and fatty acid ester-bonded, and if it is usually used in cosmetics, It is not particularly limited. Component (D) polyethylene glycol is not an essential component, but is included in the oil-in-water cosmetic composition of the present invention from the viewpoint of stability over time, suppression of capsule collapse in the cosmetic film, and non-stickiness during use. preferably.
The oil agent of component (A) in the present invention is contained in emulsified droplets in the oil-in-water cosmetic composition. As the surfactant used for this emulsification, component (D) polyethylene glycol fatty acid ester is preferable from the viewpoint of stability over time, inhibition of capsule disintegration in the cosmetic film, and non-stickiness during use. The oil-in-water cosmetic composition of the present invention may contain emulsified droplets other than the emulsified droplets containing the oil agent of component (A).

Component (D) polyethylene glycol fatty acid ester is not particularly limited, but specific examples include those having an alkyl group of 10 to 22 carbon atoms and an average degree of polymerization of ethylene glycol of 20 to 100. Specific examples of the fatty acid of component (D) include lauric acid, myristic acid, coconut oil fatty acid, stearic acid, isostearic acid, and oleic acid. Among these, PEG stearate is preferred from the viewpoint of stability over time and suppression of capsule collapse in the cosmetic film, and among PEG stearates, PEG-40 stearate and PEG-55 stearate are more preferred. The number after "PEG-" represents the average degree of polymerization of ethylene glycol.

The content of component (D) polyethylene glycol fatty acid ester is not particularly limited, but from the viewpoint of stability over time and non-stickiness during use, it is preferably 0.02 to 6 mass in the oil-in-water cosmetic composition. %, more preferably 0.05 to 4 mass %, still more preferably 0.1 to 2 mass %.

The component (A) oil agent and the component (D) polyethylene glycol fatty acid ester in the present invention are expected to be compatible when forming a cosmetic film after applying the oil-in-water cosmetic composition of the present invention. be. The microcapsules containing the components (B1) to (B4) are protected by a cosmetic film with excellent moisturizing and moisturizing properties, and the strength of the scent is improved when the cosmetic film comes into contact with the cosmetic film after a long period of time after application. From a viewpoint, the content mass ratio (A)/(D) is preferably 0.5 to 3, more preferably 1 to 8/3.

The oil-in-water cosmetic composition of the present invention contains component (A) an oil agent, microcapsules containing components (B1) to (B4), component (C) a polyhydric alcohol, and component (D) polyethylene glycol fatty acid. In addition to esters, optional components contained in ordinary cosmetics within the range that does not interfere with the effects of the present invention, such as aqueous components, oily components, powders, water-soluble polymers, film-forming agents, surfactants, oils One or more of soluble gelling agents, organically modified clay minerals, resins, coloring agents, ultraviolet absorbers, preservatives, antibacterial agents, fragrances, antioxidants, pH adjusters, chelating agents, cosmetic ingredients, etc. can contain.

Among the above optional components, one or more of oil components such as higher alcohols, hydrocarbon oils, ester oils, oils and silicones can be used as the oil components other than the component (A) oil agent. Higher alcohols such as lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyldodecanol, octyldodecanol, cetostearyl alcohol, 2-decyltetradecinol, Cholesterol, phytosterol, sitosterol, lanosterol, monostearyl glycerin ether (batyl alcohol), etc.; hydrocarbon oils such as ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax, liquid paraffin, pristane, polyisobutylene, microcrystalline wax, vaseline Ester oils such as diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, di-2 Ethylene glycol-ethylhexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, oleic acid Octyldodecyl, Decyl Oleate, Neopentyl Glycol Dicaprate, Triethyl Citrate, 2-Ethylhexyl Succinate, Isocetyl Stearate, Butyl Stearate, Diisopropyl Sebacate, Di-2-Ethylhexyl Sebacate, Cetyl Lactate, Myristyl Lactate, Palmitin isopropyl acid, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, diisostearyl malate, etc.; silicones such as low polymerization degree dimethylpolysiloxane, high polymerization degree dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, Polyoxyalkylene/alkylmethylpolysiloxane/methylpolysiloxane copolymer, alkoxy-modified polysiloxane, alkyl-modified polysiloxane, crosslinked organopolysiloxane, fluorine-modified polysiloxane, amino-modified polysiloxane, glycerin-modified polysiloxane, higher alkoxy-modified Examples include silicone, higher fatty acid-modified silicone, silicone resin, silicone rubber, and silicone resin.

The oily component as an optional component is contained in the emulsified droplets in the oil-in-water cosmetic composition together with the oil agent of component (A). The content of the oily component (including the oily agent of component (A) and the oily component as the optional component) present in the emulsified droplets is determined from the viewpoint of stability over time and suppression of capsule collapse in the cosmetic film. It is preferably 0.02 to 20% by mass, more preferably 0.2 to 15% by mass, and even more preferably 1 to 10% by mass in the composition for use. In addition, the mass ratio (A)/(other oily components) of the oil agent of component (A) and other oily components present in the emulsified droplets in the oil-in-water cosmetic composition is the capsule in the cosmetic film. From the viewpoint of suppression of collapse, 0.01 to 20 is preferable, 0.1 to 10 is more preferable, and 0.3 to 5 is even more preferable.

Among the above optional ingredients, the powders used in ordinary cosmetics include the shape (spherical, needle-like, plate-like, etc.), particle size (fumed, fine particles, pigment grade, etc.), Any one can be used regardless of the particle structure (porous, non-porous, etc.). For example, one or more of the following can be used. Inorganic powders such as magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, synthetic mica, mica, kaolin, sericite, muscovite, synthetic mica, phlogopite, red mica, biotite , Lethia mica, Silicic acid, Silicic anhydride, Aluminum silicate, Magnesium silicate, Magnesium aluminum silicate, Calcium silicate, Barium silicate, Strontium silicate, Metal tungstate, Hydroxyapatite, Vermiculite, Hysilite, Montmorillonite , zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride, etc.; organic powders such as polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane powder, benzoguanamine powder, Polymethylbenzoguanamine powder, Tetrafluoroethylene powder, Polymethyl methacrylate powder, Cellulose powder, Silk powder, Nylon powder, Nylon 12 powder, Nylon 6 powder, Styrene-acrylic acid copolymer powder, Divinylbenzene-styrene copolymer powder, Vinyl resin powder, urea resin powder, phenol resin powder, fluorine resin powder, silicon resin powder, acrylic resin powder, melamine resin powder, epoxy resin powder, polycarbonate resin powder, microcrystalline fiber powder, lauroyl lysine, etc.; Inorganic red pigments such as iron oxide, iron hydroxide and iron titanate; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and ocher; inorganic black pigments such as black iron oxide and carbon black; Inorganic purple pigments such as manganese violet and cobalt violet; inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate; inorganic blue pigments such as navy blue and ultramarine blue; Pigments made into lakes, composite powders obtained by combining these powders, etc.; pearl pigments such as titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, and titanium oxide-coated Talc, fish scale foil, titanium oxide-coated colored mica, etc.; Metal powder pigments such as aluminum powder, copper powder, stainless steel powder, etc.; Tar pigments such as Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 227, Red 228, Red 230, Red 401, Red 505, Yellow 4, Yellow 5, Yellow 202 , Yellow No. 203, Yellow No. 204, Yellow No. 401, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 404, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 207, etc.; Examples of natural pigments include carminic acid, laccaic acid, calsamine, brazilin, crocin and the like. It should be noted that these powders may be combined, or powders surface-treated with an oil agent, silicone, fluorine compound, or the like may be used.

Among the above optional components, as the surfactant, one or more of the following can be used. Examples of anionic surfactants include polyoxylene lauryl ether sulfates such as sodium polyoxylene lauryl ether sulfate, ammonium polyoxylene lauryl ether sulfate, and triethanolamine polyoxylene lauryl ether sulfate; alkyls such as sodium lauryl sulfate and triethanolamine lauryl sulfate Sulfates; α-olefin sulfonates such as sodium tetradecene sulfonate and potassium tetradecene sulfonate; acyl isethionates such as sodium N-lauroyl isethionate and potassium N-lauroyl isethionate; methyl N-cocoate N-acyl polypeptide salts such as sodium taurine, sodium N-lauroylmethyltaurate, potassium N-coconut fatty acid methyltaurate, lauroyl hydrolyzed silk sodium; and sulfosuccinic acids such as sodium sulfosuccinate. Examples of amphoteric surfactants include betaine octyldimethylaminoacetate, betaine lauryldimethylaminoacetate, betaine coconut fatty acid amidopropyl betaine, betaine coconut fatty acid alkyldimethylaminoacetate, betaine myristyldimethylaminoacetate, betaine cetyldimethylaminoacetate, and betaine coconut fatty acid. Betaine acetate type surfactants such as amidopropyldimethylaminoacetate betaine, lauramidopropyldimethylaminoacetate betaine, lauryldihydroxyethylaminoacetate betaine, cetyldihydroxyethylaminoacetate betaine; N-coconut fatty acid acyl-N-carboxymethyl- imidazoline surfactants such as N-hydroxyethylethylenediamine sodium, N-coconut fatty acid acyl-N-carboxymethoxyethyl-N-carboxymethylethylenediamine disodium; and sodium laurylaminodiacetate. Examples of cationic surfactants include alkylamine salts, amine salts such as polyamines and aminoalcohol fatty acid derivatives, alkyl quaternary ammonium salts, aromatic quaternary ammonium salts, pyridium salts, imidazolium salts, etc., such as stearyltrimethylammonium chloride, chloride behenyltrimethylammonium, cetyltrimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, dicetyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, dilauryldimethylammonium chloride, dipolyoxyethylene (15EO) coconut oil alkyl Methylammonium chloride, dipolyoxyethylene (4EO) lauryl ether dimethylammonium chloride, dicocoylethylhydroxyethylmonium sulfate, distearoylethylhydroxyethylmonium methosulfate, distearoylethylhydroxyethylmonium methosulfate, dipalmitoylethylhydroxyethylmonium methosulfate , palmitamidopropyltrimonium chloride. Examples of nonionic surfactants other than component (D) include sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, sucrose fatty acid esters, polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, Polyoxyethylene alkylphenyl ether, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene phytostanol ether, polyoxyethylene phytosterol ether, polyoxyethylene cholestanol ether, polyoxyethylene Cholesteryl ether, polyoxyalkylene-modified organopolysiloxane, polyoxyalkylene/alkyl co-modified organopolysiloxane, lauric acid diethanolamide, coconut oil fatty acid diethanolamide, coconut oil fatty acid nomoethanolamide, polyoxyethylene coconut oil fatty acid nomoethanolamide, Examples include lauric acid monoisopropanolamide, coconut oil fatty acid monoisopropanolamide, and the like.

The oil-in-water cosmetic composition of the present invention may contain a water-soluble polymer other than the component (B1) used in the microcapsules. As the water-soluble polymer other than the component (B1) used in the microcapsules, one or more of the following can be used, for example. Mucopolysaccharides and salts thereof such as chondroitin sulfate, hyaluronic acid, mucin, dermatan sulfate, heparin and keratan sulfate; Agar, quince seed, algecolloid, tranto gum, locust bean gum, galactomannan, etc. Microbial polymers such as xanthan gum, dextran, succinoglucan, pullulan, etc. Starch polymers such as starch, carboxymethyl starch, methyl Hydroxypropyl starch and the like; cellulosic polymers such as methylcellulose, ethylcellulose, methylhydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose, etc.; Polymers such as sodium alginate, propylene glycol alginate, etc. Vinyl polymers such as polyvinyl methyl ether, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, etc.; polyoxyethylene polymers; Polymeric polymer: Examples of inorganic water-soluble polymers include sodium polyacrylate, polyethylacrylate, polyethyleneimine, bentonite, laponite, and hectorite. Examples of anionic polymers include acrylic acid/ethyl acrylate/N-tert-butyl acrylamide copolymer, acrylic resin alkanolamine, vinyl methyl ether/ethyl maleate copolymer, vinyl methyl ether/butyl maleate copolymer, Examples thereof include polymers, vinyl acetate/crotonic acid copolymers, and the like. Examples of amphoteric polymers include N-methacryloylethyl N,N-dimethylammonium/α-N-methylcarboxybetaine/alkyl methacrylate copolymer, hydroxypropyl acrylate/butylaminoethyl methacrylate/octylamide acrylate copolymer. Examples thereof include coalescence, acrylic acid/dimethyldiallylammonium chloride/acrylamide copolymer, and dimethyldiallylammonium chloride/acrylic acid copolymer. Examples of cationic polymers include vinylpyrrolidone/N,N-dimethylaminoethyl methacrylate copolymer diethyl sulfate, diallyldimethylammonium chloride/hydroxyethyl cellulose, glycidyltrimethylammonium chloride/hydroxyethyl cellulose, dimethyldiallylammonium chloride polymer, and dimethyl chloride. A diallyl ammonium/acrylamide copolymer and the like can be mentioned. Furthermore, examples of nonionic polymers include polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymer, polyvinyl alcohol, and polyurethane.

Antibacterial agents include benzoic acid, sodium benzoate, salicylic acid, carbolic acid, sorbic acid, potassium sorbate, parachlormetacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizer, bis(2 -pyridylthio-1-oxide) zinc, isopropylmethylphenol and the like, and one or more of these can be used. Further, examples of the antiseptic include paraoxybenzoic acid ester, phenoxyethanol and the like, and one or more of these can be used.

The oil-in-water cosmetic composition of the present invention can be produced using a known emulsification method, and is not particularly limited. Specific examples include a dispersion emulsification method, a phase inversion emulsification method, and a phase inversion temperature emulsification method. A preferable production method from the viewpoint of obtaining an oil-in-water cosmetic composition having excellent emulsification stability over time is to heat and mix the oil agent of component (A) and, if necessary, other oily ingredients. If necessary, components (C), (D), and other aqueous components are added and mixed into the water phase that has been heated and mixed to emulsify, and then the components (B1) to (B4) containing micro A manufacturing method of adding and mixing a capsule or the like can be mentioned.

The oil-in-water cosmetic composition of the present invention can be used in combination with other ingredients to form various dosage forms. Specifically, various dosage forms such as liquid, gel, paste, cream and solid can be used.

The oil-in-water cosmetic composition of the present invention can be used as a cosmetic for various purposes. For example, lotion, milky lotion, cream, serum, massage agent, mask, hand cream, body lotion, body cream, skin care cosmetics such as sunscreen, foundation, eyeshadow, eyeliner, mascara, eyebrow, concealer, lipstick , finishing cosmetics such as lip balms, hair cosmetics such as hair mists, treatments, and hair creams. Examples of the method of use include a method of using hands and fingers, a method of impregnating a nonwoven fabric, etc., and the like.

In addition, the oil-in-water cosmetic composition of the present invention can also be used as external preparations for skin for various purposes. Examples include external liquids, external gels, creams, ointments, sprays, nasal drops, liniments, lotions, poultices, plasters, sprays, and aerosols.

Another aspect of the present invention is an oil-in-water cosmetic composition containing perfume in microcapsules, characterized in that component (A) an oil having a water holding capacity of 100% or more is contained in emulsified droplets. It is possible to provide a method for maintaining the fragrance intensity of the oil-in-water cosmetic composition. In the method, the component (A) is preferably contained in the oil-in-water cosmetic composition in an amount of 0.02 to 10% by mass. According to this method, it is possible to improve the intensity of the fragrance when it comes into contact with the cosmetic film after a long time has passed since the application.

Further, as still another aspect of the present invention, an agent for maintaining fragrance intensity of an oil-in-water cosmetic composition containing perfume in microcapsules, which contains component (A) an oil having a water holding capacity of 100% or more. can be provided. In the agent, the component (A) is preferably contained in the oil-in-water cosmetic composition in an amount of 0.02 to 10% by mass. By using the agent in an oil-in-water cosmetic composition, it is possible to improve the stability over time, the strength of the scent when it comes into contact with the cosmetic film after a long period of time after application, and the absence of stickiness during use. can be

EXAMPLES The present invention will be described in more detail below with reference to Examples, but the present invention is not limited to these. In the following, unless otherwise specified, the contents are shown in % by mass relative to the system containing the component.

Examples 1 to 12, Comparative Examples 1 to 4: Emulsions Table 1 below shows formulation examples of microcapsules (microcapsule-containing aqueous solutions 1 and 2). In addition, milky lotions having the formulations shown in Tables 2 to 4 were prepared, and the following methods were used to evaluate the stability over time, the strength of the scent when the cosmetics were in contact with the cosmetic film after a long period of time after application, and the lack of stickiness during use. Evaluated by The results are also shown in Tables 2-4. The fragrances contained in Examples 1 to 12 and Comparative Examples 1 to 4 are not particularly limited, but are of the same type.

(Production method)
<Aqueous solution containing microcapsules>
A: At a temperature of 40 ° C., components (1), (2), (5), (6), and 1/2 of the component (7) are dispersed by stirring, and by adjusting the stirring power, the average particle size The diameter was 1-20 μm.
B: To A, at a temperature of 40°C, an aqueous solution in which component (3) was dissolved in 1/4 of component (7) was gradually added.
C: To B at a temperature of 40 ° C., after gradually adding an aqueous solution of component (4) dissolved in 1/4 of component (7), by cooling to 20 ° C., microcapsules (containing microcapsules Aqueous solutions 1, 2) were obtained. The microcapsules obtained by the above method are non-covalent capsules (coacervated microcapsules).
<Examples 1 to 12, Comparative Examples 1 to 4>
A: Components (8) to (12) are uniformly dissolved and mixed at 70°C.
B: Components (3) to (6) and (13) to (17) are uniformly dissolved and mixed at 70°C.
C: Emulsification was performed by adding A to B and mixing, and after cooling to 40° C., components (1), (2) and (7) were added and mixed to obtain an emulsion.

(Evaluation item)
A: Stability over time B: Intensity of fragrance when in contact with the cosmetic film after a long period of time after application C: Absence of stickiness during use

(Evaluation method)
(A: Stability over time)
Each sample was stored in a constant temperature bath at 50° C. for 1 month, and the state of each sample was visually confirmed for 1 month and evaluated according to the following criteria.
Four-stage judgment criteria (judgment): (state of appearance)
◎ : No change at 1 month : Very good ○ : Texture is not bad at 3 weeks, no aggregates are observed,
Poor texture and aggregates observed in less than 1 month: Good △: No bad texture and no aggregates observed after 2 weeks,
Poor texture in less than 3 weeks, aggregates observed: Slightly poor x: Poor texture in less than 2 weeks, aggregates observed: Poor

(B: Intensity of fragrance when in contact with the cosmetic film after a long period of time after application)
0.5 g of each sample was applied to odor paper (trade name: fragrance test paper, manufactured by Daimonji Yoshiten Co., Ltd.) by 10 panelists specializing in perfume evaluation, and after 24 hours, the coated part of the odor paper was touched twice with a finger. The intensity of the scent perceived was evaluated in 5 stages according to the following absolute evaluation, and a score was assigned. For each sample, the average value was calculated from the total score of all the panelists, and judged according to the following 4-step criteria.
5 points: The intensity of the fragrance is very strong 4 points: The intensity of the fragrance is strong 3 points: The intensity of the fragrance is normal 2 points: The intensity of the fragrance is weak 1 point: The intensity of the fragrance is very weak (average score)
◎: More than 4 points: Very good ○: More than 3 points and 4 points or less: Good △: More than 2 points and 3 points or less: Somewhat poor ×: 2 points or less: Poor

(C: No stickiness during use)
A panel of 10 women in their 20s to 40s who had undergone sensory evaluation training and were able to perform evaluations according to a certain standard was selected. For each sample, the absence of stickiness felt when applied to the skin by a specialized panel was evaluated and scored in 5 stages according to the following absolute evaluation, and the average value was calculated from the total score of all the panel members for each sample, It was judged according to the following 4-step judgment criteria.
Absolute Evaluation Criteria (Rating): (Rating)
5 points: No stickiness 4 points: Almost no stickiness 3 points: Slightly sticky 2 points: Sticky 1 point: Strong stickiness
◎: More than 4 points: Very good ○: More than 3 points and 4 points or less: Good △: More than 2 points and 3 points or less: Somewhat poor ×: 2 points or less: Poor

As is clear from the results in Tables 2 to 4, the emulsions of Examples 1 to 12 are more stable over time than the emulsions of Comparative Examples 1 to 4, and the cosmetic film after a long period of time (24 hours) after application. It was excellent in strength of fragrance when it was in contact with the skin and non-stickiness during use.
Comparative Example 1 containing no components (B1) to (B4) and Comparative Example 2 containing components (B1) to (B4) but not forming microcapsules, the amount of perfume in the composition Same as 1-12, but different from Examples 1-12 in that perfume is not contained in microcapsules. Since fragrances have high volatility, in the milky lotions of Comparative Examples 1 and 2, 24 hours after application, the fragrance intensity does not change at all before and after touching the cosmetic film (“1 point: the fragrance intensity is Very weak”), the strength of the scent is weak even when touching the cosmetic film (“2 points: the strength of the scent is weak”), and the strength of the scent when touching the cosmetic film after a long period of time after application. It was inferior to Examples 1 to 12 (“×: 2 points or less: unsatisfactory”).
In Comparative Example 3, which does not contain component (A), 24 hours after application, the fragrance intensity was weak even when the cosmetic film was touched (“2 points: weak fragrance intensity”). However, the intensity of fragrance is not good (“3 points: intensity of fragrance is normal”). (“△: 3 points or less exceeding 2 points: somewhat poor”). In addition, it was inferior to Examples 1 to 12 in terms of non-stickiness during use (“Δ: 3 points or less exceeding 2 points: somewhat poor”).
Comparative Example 4, in which component (A) was contained in microcapsules but not in emulsified droplets, was inferior to Examples 1 to 12 in terms of stability over time ("X: Poor texture within 2 weeks. , Aggregates are observed: Poor”). In addition, 24 hours after application of the milky lotion of Comparative Example 4, the fragrance intensity did not change at all before and after touching the cosmetic film (“1 point: the fragrance intensity is very weak”). The fragrance intensity is weak to the touch (“2 points: weak fragrance intensity”), and the fragrance intensity is inferior to that of Examples 1 to 12 when it comes into contact with the cosmetic film after a long period of time after application. (“x: 2 points or less: unsatisfactory”). This suggested that component (A) should be contained in the emulsified droplets.

Example 13: Oil-in-water emulsified cream (component) (%)
1.1,3-butylene glycol 12.0
2. Glycerin 5.0
3. Remaining purified water 4. Citric acid 0.1
5. Sodium ascorbate 0.5
6. Sodium metasilicate 0.05
7. Hydrogenated lecithin 0.5
8. Hydrogenated lysolecithin (Note 1) 0.5
9. Macadamia nut oil fatty acid phytosteryl 1.5
10. Glyceryl tri(caprylic-capric) acid 2.0
11. Ceramide 2 0.1
12. Astaxanthin 0.1
13. Tocopherol 0.01
14. Cetostearyl alcohol 2.0
15. behenyl alcohol 1.0
16. Glycerin monostearate 1.0
17. Methyl paraoxybenzoate 0.05
18. Carbomer 0.15
19. Xanthan gum 0.1
20. Sodium hydroxide 0.004
21. Perfume 0.05
22. Aqueous solution containing microcapsules 1 0.2
(Note 1) LP70H (manufactured by Nippon Fine Chemical Co., Ltd.)

(Production method)
A: Components (1) to (6) are uniformly dissolved and mixed at 70°C.
B: Components (7) to (16) are uniformly dissolved and mixed at 80°C.
C: Add B to A and emulsify at 70°C.
D: After adding and mixing components (17) to (21) to C, the mixture was cooled to 40° C., and component (22) was added and mixed to obtain an oil-in-water emulsified cream.

The oil-in-water emulsified cream of Example 13 was excellent in stability over time, excellent in intensity of fragrance when in contact with the cosmetic film after a long period of time after application, and was non-sticky during use.

Example 14: Oil-in-water substrate
(Component) (%)
1.1,3-butylene glycol 7.0
2. Dipropylene glycol 5.0
3. Triethanolamine 0.4
4. Remaining purified water 5. Sodium lactate 0.04
6. Hydrogenated lecithin 0.4
7. Stearic acid 1.0
8. PEG-55 stearate 0.3
9. Sorbitan sesquiisostearate 0.1
10.2-Cetyl ethylhexanoate 2.0
11. Cetostearyl alcohol 0.3
12. behenyl alcohol 0.5
13. Phytosteryl oleate 0.1
14. Talc 0.4
15. Hydrous silica 0.1
16. Mica 1.3
17. Titanium oxide 6.0
18. Iron oxide 0.1
19. Acrylic acid/alkyl methacrylate copolymer 0.3
20. Xanthan gum 0.1
21. sodium hydroxide 0.008
22. Glycine 0.01
23. Arginine 0.01
24. Aqueous solution containing microcapsules 2 0.7

(Production method)
A: Components (1) to (5) are uniformly dissolved and mixed at 70°C.
B: Components (6) to (13) are uniformly dissolved and mixed at 80°C.
C: Add B to A and emulsify at 70°C.
D: After adding and mixing components (14) to (23) to C, the mixture was cooled to 40° C., and component (24) was added and mixed to obtain an oil-in-water base.

The oil-in-water type base of Example 14 was excellent in stability over time, excellent in intensity of scent when in contact with the cosmetic film after a long period of time after application, and was non-sticky during use.

Example 15: Oil-in-water serum
(Component) (%)
1.1,3-butylene glycol 5.0
2. Glycerin 5.0
3. Remaining purified water 4. Citric acid 0.1
5. Hydrogenated lecithin (Note 2) 0.1
6. PEG-40 stearate 0.2
7. PEG-55 stearate 0.15
8. Squalane 5.0
9. Vaseline 0.5
10. Ceramide 3 0.1
11. Tocopherol 0.01
12. Cetostearyl alcohol 0.5
13. Oleyl alcohol 1.0
14. Hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl 3.0
15. Carbomer 0.15
16. (Na acrylate/Na acryloyldimethyltaurate) copolymer solution (Note 3)
0.1
17. sodium hydroxide 0.05
18. Ethanol 5.0
19. Sodium hyaluronate 0.01
20. Hydrolyzed hyaluronic acid 0.01
21. Hydrolyzed collagen 0.01
22. Glycosyl trehalose 0.1
23. Aqueous solution containing microcapsules 1 3
(Note 2) Resinol S-10EZ (manufactured by Nikko Chemicals)
(Note 3) SIMULGEL EG (manufactured by SEPIC)

(Production method)
A: Components (1) to (4) are uniformly dissolved and mixed at 70°C.
B: Components (5) to (14) are uniformly dissolved and mixed at 80°C.
C: Add B to A and emulsify at 70°C.
D: After adding and mixing components (15) to (22) to C, the mixture was cooled to 40° C., and component (23) was added and mixed to obtain an oil-in-water beauty essence.

The oil-in-water beauty essence of Example 15 was excellent in stability over time, excellent in fragrance intensity when in contact with the cosmetic film after a long period of time after application, and was non-sticky during use.

Example 16: Oil-in-water serum
(Component) (%)
1.1,3-butylene glycol 4.0
2. Glycerin 4.0
3. Remaining purified water 4. Citric acid 0.1
5. Hydrogenated lecithin (Note 2) 0.1
6. PEG-40 stearate 0.2
7. PEG-55 stearate 0.15
8. Squalane 5.0
9. Bis-diglyceryl polyacyl adipate-2 0.2
10. Di(octyldodecyl/phytosteryl/behenyl) lauroyl glutamate
0.1
11. Tocopherol 0.01
12. Cetostearyl alcohol 0.5
13. Oleyl alcohol 1.0
14. Hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl 3.0
15. Carbomer 0.15
16. (Na acrylate/Na acryloyldimethyltaurate) copolymer solution (Note 3)
0.1
17. sodium hydroxide 0.05
18. Ethanol 5.0
19. Glycine 0.01
20. Proline 0.01
21. glucose 0.01
22. Pentylene glycol 0.1
23. Aqueous solution containing microcapsules 1 3

(Production method)
A: Components (1) to (4) are uniformly dissolved and mixed at 70°C.
B: Components (5) to (14) are uniformly dissolved and mixed at 80°C.
C: Add B to A and emulsify at 70°C.
D: After adding and mixing components (15) to (22) to C, the mixture was cooled to 40° C., and component (23) was added and mixed to obtain an oil-in-water beauty essence.

The oil-in-water beauty essence of Example 16 was excellent in stability over time, excellent in fragrance intensity when in contact with the cosmetic film after a long period of time after application, and was non-sticky during use.

Claims (7)

component (A) emulsified droplets containing an oil having a water holding capacity of 100% or more;
Components (B1) to (B4) below
Microcapsules containing component (B1) anionic polymer, component (B2) monovalent metal salt, component (B3) polyvalent metal salt, component (B4) perfume , and not containing component (A) oil agent ,
component (C) a polyhydric alcohol;
contains
The content of the component (A) oil present in the emulsified droplets is 0.02 to 15% by mass in the oil-in-water cosmetic composition,
The content mass ratio (A)/(C) of the component (A) and the component (C) is 0.001 to 0.75,
An oil-in-water cosmetic composition. 2. The oil-in-water cosmetic composition according to claim 1, wherein said microcapsules are coacervated microcapsules. 3. The oil-in-water cosmetic composition according to claim 1, wherein the content ratio (A)/(C) of component (A) and component (C) is 0.005 to 0.5. 4. The oil-in-water cosmetic composition according to any one of claims 1 to 3, further comprising component (D) polyethylene glycol fatty acid ester. The oil-in-water cosmetic composition according to claim 4, wherein the content ratio (A)/(D) of component (A) and component (D) is 0.5 to 3. The oil-in-water cosmetic composition according to any one of claims 1 to 5, wherein the content of the component (C) is 2 to 30% by mass in the oil-in-water cosmetic composition. The oil-in-water cosmetic composition comprises an aqueous solution containing the microcapsules,
The content of the microcapsule-containing aqueous solution is 0.1 to 5% by mass in the oil-in-water cosmetic composition,
The content of the component (B1) is 0.1 to 20% by mass in the microcapsule-containing aqueous solution,
The content of the component (B2) is 0.01 to 20 parts by mass with respect to 1 part by mass of the component (B1) anionic polymer,
The content of the component (B3) is 0.0001 to 10 parts by mass with respect to 1 part by mass of the component (B1) anionic polymer ,
The oil-in-water cosmetic composition according to any one of claims 1 to 6, wherein the content of said component (B4) is 0.1 to 30% by mass in said microcapsule-containing aqueous solution.