JPH07267816A - Capsule, external preparation for skin characterized by containing the capsule, and method for producing the capsule - Google Patents

Abstract

(57) [Summary] [Problem] To provide a capsule which prevents deterioration of a skin-effective liquid oily component, has good long-term stability, and has a good feel as an external preparation, especially a cosmetic, and a method for producing the capsule. The purpose is to The present invention relates to a capsule, an external skin preparation containing the capsule, and a method for producing the capsule. More specifically, it relates to a capsule characterized by coating a solid oily component around a polymer component containing a liquid oily component, and is useful in the fields of cosmetics and pharmaceuticals characterized by blending the capsule. And a method for producing the capsule.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a capsule, an external preparation for skin containing the capsule, and a method for producing the capsule. More specifically, it relates to a capsule characterized by coating a solid oily component around a polymer component containing a liquid oily component, and is useful in the fields of cosmetics and pharmaceuticals characterized by blending the capsule. And a method for producing the capsule.

[0002]

2. Description of the Related Art Generally, what is called an external preparation includes cosmetics, pharmaceuticals, quasi drugs and the like. Among these, the functions and purposes of cosmetics are to provide a proper oil content, moisturizing ingredient, and water according to the skin and hair quality to help the natural moisturizing mechanism of skin and hair, and to protect them from external environmental conditions. Changes, such as those that depend on nature such as temperature and humidity, or artificial things such as degreasing due to washing, to reduce the burden on the skin and hair and maintain a healthy and normal state. Therefore, as a cosmetic composition, creams, emulsions or the like in which various oil-soluble raw materials and water-soluble raw materials are emulsified with a surfactant, or cosmetics in which oily ingredients are dispersed in fine particles are widely used.

However, emulsion-type cosmetics prepared by emulsifying various oil-soluble raw materials and water-soluble raw materials with a surfactant have a problem of deterioration of liquid oil-based raw materials, especially skin active ingredients. That is, since the oily component which is the skin active ingredient in the o / w emulsion is constructed by a thin surfactant film, there is a drawback that the emulsion is inevitably deteriorated due to coalescence of the emulsion or movement of the oily component.

Further, a method of encapsulating a fat-soluble component in a microcapsule and isolating it from the outside and stabilizing it is considered. In this method, it is dissolved in an external preparation containing water,
When it is used as a cosmetic product because it cannot be used or because gelatin or a polymer substance is used as a constituent of the capsule membrane, it has a polymer-specific feel when it starts to be applied, and discomfort is required. Is a major drawback.

Further, there is a problem in that capsules cannot be encapsulated by simply kneading oil unless an aqueous solution is used in manufacturing the capsules.

[0006]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have adsorbed a skin-effective liquid oily component to a polymer and encapsulate the outer layer with a solid oily component. It has been found that, by doing so, deterioration of the skin-effective liquid oily component can be prevented, and a capsule having a good feel as an external preparation, especially as a cosmetic, can be obtained. Further, they have found that they can be encapsulated by using a step of stirring with an aqueous solution in the manufacturing process, and have completed the present invention.

That is, the present invention is as follows.

(1) A capsule characterized in that a solid oily component is coated around a polymer component containing a liquid oily component. (2) The capsule according to (1), wherein the temperature at which the solid oily component begins to melt is 30 to 100 ° C, which is higher than the temperature at which the liquid oily component begins to solidify. (3) The weight ratio of the liquid oil component to the polymer component is
The capsule according to (1) or (2), which is 0.5 to 10. (4) 1 or 2 selected from liquid oily components and solid oily components selected from higher fatty acids, animal and vegetable oils, hydrocarbons, esters, silicones, higher alcohols, pigments, plant extracts, and ultraviolet absorbers. The capsule according to (2), characterized in that there are at least one kind. (5) An external preparation for skin comprising the capsule according to (1) to (4). (6) A cosmetic comprising the capsule according to any one of (1) to (4). (7) stirring the liquid oil component with a heated aqueous solution,
After the inside of the capsule is adjusted by adding a polymer component, a solid oily component is added, and the aqueous solution is rapidly cooled to coat the periphery of the capsule. Method. (8) The method for producing capsules according to (7), wherein the temperature of the heated aqueous solution is higher than the temperature at which the solid oily component begins to solidify.

Here, the capsule is defined as a liquid component coated with gelatin or the like, but the capsule in the present invention is not gelatin but a polymer component containing a liquid oily component as described above. The thing around what is coated with a solid oily component.

The liquid oily component used in the present invention is 1
One or any mixture of two or more oily components may be liquid as long as it is liquid at room temperature, and the solid oily component may be a mixture of one or more oily components at room temperature. Any solid form may be used.

Specifically, higher fatty acids, hydrocarbons,
One or more selected from esters, silicones, higher alcohols, animal and vegetable oils, pigments, plant extracts, and ultraviolet absorbers can be mentioned, and more specific examples are as follows. .

[Higher fatty acids] capric acid, lauric acid,
Myristic acid, palmitic acid, stearic acid, behen
(Behenine) acid, 12-hydroxystearic acid, linoleic acid, oleic acid, linoleic acid, arachidonic acid, eicosapentaenoic acid and the like.

[Hydrocarbons] Liquid paraffin, ozokerite, pristane, ceresin, vaseline, microcrystalline wax and the like.

[Ester] Isopropyl myristate,
Cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin lactate, isocetyl stearate, isostearic acid Isocetyl, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2-heptylundecane Acid glycerin, tri-2-ethylhexyl trimethylolpropane, trimethylolpropane triisostearate, tetra-2-
Pentaneerythritol ethylhexylate, glycerin tri-2-ethylhexylate, cetyl 2-ethylhexylate, 2-ethylhexyl palmitate, glyceryl trimyristate, glyceryl trioctanoate, glyceryl triisopalmitate, methyl ester of castor oil fatty acid, oleyl oleate , -2-heptylundecyl palmitate, diisobutyl adipate, di-2-adipate
Heptyl undecyl, ethyl laurate, di sebacate
-2-ethylhexyl, -2-hexyldecyl myristate,
2-hexyldecyl palmitate, diisopropyl sebacate, etc.

[Silicones] dimethylpolysiloxane,
Methylphenyl polysiloxane, dimethyl siloxane
Methyl stearoxysiloxane copolymer, trimethylsiloxysilicic acid, decamethylcyclopentasiloxane, methylpolysiloxane, highly polymerized methylpolysiloxane, dodecamethylcyclohexasiloxane, etc.

[Higher alcohols] Capryl alcohol,
Lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glyceryl ether (batyl alcohol), 2-decyltetradecanol, 2-
Hexyldecanol, 2-hexyldecanol, 2-octyldodecanol, lanolin alcohol, cholesterol, phytosterols, isostearyl alcohol, etc.

[Animal and vegetable oil] Avocado oil, camellia oil, macadamia nut oil, corn oil, olive oil, evening primrose oil,
Rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern oil, castor oil, hydrogenated castor oil, linseed oil,
Safflower oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, rice bran oil, cinnamon oil, jojoba oil, germ oil, almond oil, cacao butter, coconut oil, horse fat, hardened coconut oil, turtle oil, mink oil, Squalene, squalane, orange ruffy oil, beef tallow, sheep fat, lard, mokuro, whale fat, lanolin, lanolin alcohol, hydrogenated lanolin, lanolin acetate, liquid lanolin, lanolin fatty acid isopropyl, lanolin fatty acid isostearyl, lanolin fatty acid cholesteryl, reduction Lanolin, jojoba wax, hard lanolin, shellac wax, jojoba alcohol, etc.

[Dyes] Oil-soluble dyes such as Red No. 225, Red No. 218, Daidai No. 201, Green No. 202 and Purple No. 201. Mica titanium, red iron oxide-treated mica titanium, yellow iron oxide-treated mica titanium, black iron oxide-treated mica titanium, iron oxide / yellow iron oxide-treated mica titanium, iron oxide / black iron oxide-treated mica titanium, turquoise treated mica titanium, carmine-treated mica Pearl pigment such as titanium.

[Ultraviolet absorber] 2-methoxyhexyl paramethoxycinnamate, benzophenone, 2-hydroxy-4-methoxybenzophenone, 2-ethylhexyl paradimethylaminobenzoate, 4- (3,4-dimethoxyphenylmethylene)-
2,5-Dioxoimidazolidine-1-propionic acid 2-ethylhexyl ester, 2,4,6-trianilino-P- (carbo-2 '
-Ethylhexyl-1-oxy) 1,3,5-triazine, 4-tert-
Butyl-4'-methoxy-benzoylmethane, furanone derivatives, etc.

When the above-mentioned oily component is used, even if it is a single product or a solid product and the mixture becomes a liquid, the mixture is a liquid oily component, and the single product or the liquid product is mixed. When the mixture becomes solid, the mixture is a solid oil component.

The solid oily component used in the present invention is more preferably a solid oily component whose solidification temperature is from 30 to 100 ° C.

The temperature at which the solid oily component begins to melt is 30 °
When it is lower than C, the solid oily component starts to dissolve at room temperature, and the solid oily component cannot be covered around the polymer component containing the liquid oily component, so that the stability of the product cannot be maintained.

When the temperature at which the solid oily component begins to melt is 100 ° C or higher, the boiling point of water is 100 ° C, so that capsules cannot be produced.

Further, if the temperature at which the solid oily component begins to dissolve is lower than the temperature at which the liquid oily component begins to dissolve, it becomes difficult to cover the liquid oily component with the solid oily component, and the capsule disclosed in the present invention is produced. Therefore, it is desirable that the temperature at which the solid oily component begins to melt is higher than the temperature at which the liquid oily component begins to solidify.

In the present invention, any polymer component can be used, and specific examples are as follows.

Nylon 6, nylon 6/6, nylon 12,
Butyl acrylate / methacrylic acid copolymer, octyl acrylate / vinyl acetate copolymer, methyl acrylate / ethyl acrylate copolymer, methyl acrylate / styrene copolymer, lauryl acrylate / vinyl acetate copolymer,
Vinyl acetate / styrene copolymer, styrene / methacrylic acid copolymer, vinylpyrrolidone / vinyl acetate copolymer,
Polyacrylic acid amide, polymethyl acrylate, polyethyl methacrylate, polymethyl methacrylate, methacrylic acid / methyl methacrylate copolymer and the like.

In the present invention, the weight ratio of the liquid oil component to the polymer component is preferably 0.5-10.

When the weight ratio of the liquid oily component to the polymer component is 0.5 or less, the polymer component and the solid oily component covering the periphery have a strong feel, and are not suitable as an external preparation for skin.

When the weight ratio of the liquid oily component to the high molecular weight component is 10 or more, the liquid oily component feels too strong, as when water comes out from a sponge containing a large amount of water. Not suitable as an external preparation.

The capsule according to the present invention (hereinafter referred to as the present capsule) can be stably stored for a long period of time, and the external preparation containing the present capsule imparts lubricity and wettability to the skin to give a feeling of use and a liquid state. It is possible to improve the efficacy and effect of the oily component.

In the present specification, the external preparation for skin refers to an agent which acts directly or indirectly on the skin, and its method includes application, spraying, etc., regardless of usage, cosmetics, pharmaceuticals, quasi drugs Etc. are all included. The capsule has the above-mentioned effects for all external preparations for the skin, but particularly excellent in cosmetics.

The content of the present capsule in the external preparation for skin varies depending on the size of the capsule, but is 0.1% to 50% in the external preparation for skin, and particularly preferably 5 to 20%.

If desired, an oil-soluble active ingredient can be added to the capsule.

Specific examples of the oil-soluble active ingredient are as follows.

Tocopherol, tocopherol acetate, vitamin A, vitamin A derivative, ergocalciferol,
Oil-soluble arnica extract, oil-soluble sardine extract, oil-soluble chamomile extract, oil-soluble licorice extract, oil-soluble mulberry extract, oil-soluble burdock extract, oil-soluble collagen extract,
Oil-soluble salvia extract, oil-soluble shikon extract, oil-soluble shinano extract, oil-soluble birch extract, oil-soluble horse mackerel extract, oil-soluble yarrow extract, oil-soluble sage extract, oil-soluble euglena extract, oil-soluble toki extract, oil-soluble quince extract , Oil-soluble carrot extract, oil-soluble nobara extract, oil-soluble loquat leaf extract, oil-soluble placenta extract, oil-soluble hop extract, oil-soluble horse chestnut extract, oil-soluble peach leaf extract, oil-soluble yochinin extract, oil-soluble rosemary extract, oil-soluble royal jelly Extract, etc.

Next, the stability of the present capsule for a long period of time will be described with reference to experimental examples.

Experimental Example 1 The stability of vitamin A palmitate contained in the capsules obtained in Example 1 and the comparative products obtained in Comparative Example 1 and Comparative Example 2 below was examined and compared for evaluation.

That is, the containers containing the capsules obtained in Example 1 below and the comparative products obtained in Comparative Examples 1 and 2 below were stored in a 50 ° C. incubator, and were stored at 5, 10, 20, 30, and
The residual rate (%) of vitamin A palmitate after 50 days was calculated.

Comparative Example 1 [Liquid oily component] Jojoba oil 15.0 (weight part) Liquid paraffin 8.00 (weight part) Squalane 8.00 (weight part) Vitamin A palmitate 0.20 (weight part) ) Octyldodecyl myristate 10.0 (weight part) Perfume 0.20 (weight part) [solid oil component] ceresin 9.00 (weight part) Stearyl alcohol 3.50 (weight part) decamethyl Cyclopentasiloxane 6.75 (weight part) Methylphenylpolysiloxane 6.00 (weight part) Cholesteryl hydroxystearate 3.00 (weight part) Propyl paraoxybenzoate 0.10 (weight part) Paraoxybenzoic acid butyl 0.05 (weight parts) tocopherol acetate 0.20 (weight parts) total 70.0 0 in (weight parts) above formulation was mixed uniformly heated aqueous solution 80 ° C [liquid oil component ] And add 500r with a propeller stirrer
It was stirred under the condition of pm. Comparative Example 1 was obtained by adding [solid oily component] uniformly dissolved at 80 ° C. with continuous stirring and stirring vigorously.

Comparative Example 2 [Liquid oily component] Jojoba oil 15.0 (weight part) Liquid paraffin 8.00 (weight part) Squalane 8.00 (weight part) Vitamin A palmitate 0.20 (weight part) ) octyldodecyl myristate 10.0 0 (weight parts) perfume 0.20 (weight parts) [polymer component nylon 6 30.00 (weight parts) total 71.4 0 (weight parts) above formulation At, add [Liquid oil component] uniformly mixed to the aqueous solution heated to 80 ° C, and add 500r with a propeller stirrer.
It was stirred under the condition of pm. While continuing to stir, [polymer component]
Comparative Example 2 was obtained by adding and vigorously stirring.

The experimental results are shown in Table 1.

Table 1

As is clear from Table 1, the residual rate of vitamin A palmitate in Example 1 was higher than that in Comparative Examples 1 and 2. This indicates that Example 1 has excellent stability over time.

Next, the fact that the present capsule is excellent in appearance, stickiness during application, and smoothness will be described with reference to experimental examples.

Experimental Example 2 With respect to the capsules obtained in Example 1 and the comparative products obtained in Comparative Examples 1 and 2 and the comparative products obtained in Comparative Examples 3 and 4 below, the appearance (uniform particle size) ),
The stickiness, powderiness and smoothness during application were examined.

Comparative Example 3 [Liquid oily ingredient] Jojoba oil 7.50 (weight part) Liquid paraffin 4.00 (weight part) Squalane 4.00 (weight part) Vitamin A palmitate 0.1 0 (weight part) Octyldodecyl myristate 5.00 (weight part) Perfume 0.10 (weight part) [Polymer component] Nylon 6 50.70 (weight part) [Solid oil component] Ceresin 9.00 (weight part) ) Stearyl alcohol 3.50 (weight part) Decamethylcyclopentasiloxane 6.75 (weight part) Methylphenylpolysiloxane 6.00 (weight part) Cholesteryl hydroxystearate 3.00 (weight part) Paraoxybenzoic acid in propyl 0.10 (weight parts) butyl parahydroxybenzoate 0.05 (weight parts) tocopherol acetate 0.20 (weight parts) total 10 0.00 (weight parts) above formulation, the 80 ° C Add [Liquid oily component] that is uniformly mixed to the heated aqueous solution, 500r with propeller stirrer
It was stirred under the condition of pm. Comparative Example 3 was obtained by adding [polymer component] while continuing stirring, and adding [solid oil component] uniformly dissolved at 80 ° C. and stirring vigorously.

Comparative Example 4 [Liquid oily component] Jojoba oil 24.0 (weight part) Liquid paraffin 13.0 (weight part) Squalane 13.0 (weight part) Vitamin A palmitate 0.20 (weight part) (Parts by weight) Octyldodecyl myristate 15.0 (weight part) Perfume 0.20 (weight part) [Polymer component] Nylon 6 6.0 0 (weight part) [Solid oil component] ceresin 9.00 (weight part) Weight part) Stearyl alcohol 3.50 (weight part) Decamethylcyclopentasiloxane 6.75 (weight part) Methylphenylpolysiloxane 6.00 (weight part) Cholesteryl hydroxystearate 3.00 (weight part) ) in propyl parahydroxybenzoate 0.10 (weight parts) butyl parahydroxybenzoate 0.05 (weight parts) tocopherol acetate 0.20 (weight parts) total 10 0.00 (weight parts) above formulation, 80 Add [Liquid oily component] that is uniformly mixed to the aqueous solution heated to ° C. 500r with a propeller stirrer
It was stirred under the condition of pm. Comparative Example 4 was obtained by adding [polymer component] while continuing stirring, and adding [solid oil component] uniformly dissolved at 80 ° C. and stirring vigorously.

The experimental results are shown in Table 2.

Table 2

In Table 2, ⊚ indicates "quite good", ∘ indicates "good", and x indicates "bad".

As is clear from Table 2, in Comparative Example 1, the liquid oily component and the solid oily component were not completely mixed because there was no polymer component, and the smoothness at the time of application was insufficient. In Comparative Example 2, the feel of the polymer component is fully exhibited, so that it feels powdery and lacks smoothness.
In Comparative Example 3, since the amount of the liquid oily component is small, it has a hard feeling as a whole and is inferior to the touch. In Comparative Example 4, the amount of the liquid oily component was too large, and when applied, the feel of the liquid oil was almost reached. The present capsule obtained in Example 1, the appearance (uniformity of particles), stickiness during application,
An excellent effect was exhibited in all of powderiness and smoothness during application.

Experimental Example 3 An experiment similar to Experimental Example 2 was performed for Example 2 and Comparative Example 5 below.

Comparative Example 5 [Liquid oil component] Liquid paraffin 10.0 0 (weight part) Olive oil 5.00 (weight part) Cetyl octanoate 3.00 (weight part) Avocado oil 2.50 (weight part) Parts by weight) lanolin alcohol 0.50 (weight parts) tocophenol acetate 0.50 (weight parts) linoleic acid 0.35 (weight parts) [polymer component] 10% gelatin solution 31.00 (weight parts) 10 % gum arabic solution 31.00 (weight parts) 10% acetic acid solution 1.15 (weight parts) in total 85.0 0 (weight parts) above formulation were uniformly mixed 50 ° C the polymer component. [Liquid oil component] was uniformly dissolved and added to this, and the mixture was dispersed and emulsified using a homomixer at 800 rpm. While stirring at 80 rpm with a propeller stirrer, warm water at 40 ° C
Comparative Example 5 was prepared by adding 100 ml to form coacervate, cooling to 5 ° C and removing water by filtration.
Got

The experimental results are shown in Table 3.

Table 3

In Table 2, ⊚ indicates "quite good", ∘ indicates "good", and x indicates "bad".

As is clear from Table 3, in Comparative Example 5, a strong feeling of gelatin was exerted, and discomfort such as stickiness and sliminess was felt during application. The present capsule obtained in Example 2 exhibited excellent effects in all aspects of appearance (uniformity of particles), stickiness during application, powderiness, and smoothness during application.

In order to manufacture this capsule,
It is important to stir the liquid oily component with the aqueous solution. If the polymer component is added to the liquid oily component without using the aqueous solution, the intended capsule cannot be obtained.

Next, the method for producing the present capsule and the external preparation for skin containing the present capsule will be described, but the present invention is not limited thereto.

Example 1 [Liquid oily component] Jojoba oil 15.0 (weight part) Liquid paraffin 8.00 (weight part) Squalane 8.00 (weight part) Vitamin A palmitate 0.20 (weight part) ) Octyldodecyl myristate 10.0 (weight part) Perfume 0.20 (weight part) [Polymer component] Nylon 6 30.00 (weight part) [Solid oil component] Ceresin 9.00 (weight part) Parts) Stearyl alcohol 3.50 (Parts by weight) Decamethylcyclopentasiloxane 6.75 (Parts by weight) Methylphenylpolysiloxane 6.00 (Parts by weight) Cholesteryl hydroxystearate 3.00 (Parts by weight) in propyl parahydroxybenzoate 0.10 (weight parts) butyl parahydroxybenzoate 0.05 (weight parts) tocopherol acetate 0.20 (weight parts) total 10 0 (weight parts) above formulation, the 80 ° C Add [Liquid oily component] that is uniformly mixed to the heated aqueous solution, 500r with Lopera stirrer
It was stirred under the condition of pm. While continuing to stir, [polymer component]
Was added, and [solid oily component] uniformly dissolved at 80 ° C was added, followed by vigorous stirring to obtain capsules having an average particle size of 1 mm.

Example 2 [Liquid oily component] Liquid paraffin 10.0 (weight part) Olive oil 5.00 (weight part) Cetyl octanoate 3.00 (weight part) Avocado oil 2.50 (weight part) Parts by weight) lanolin alcohol 0.50 (weight parts) tocopherol acetate 0.50 (weight parts) linoleic acid 0.35 (weight parts) [polymer component] nylon 6 15.00 (weight parts) [solid] Oily component] Ceresin 22.0 (weight part) Micro Crystal Wax 5.00 (weight part) Methylphenylpolysiloxane 8.00 (weight part) White Vaseline 15.00 (weight part) Adsorption purification Lanolin 5.00 (weight part) Cetanol 2.00 (weight part) Jojoba oil 3.00 (weight part) Lactose oil 2.80 (weight part) Propyl paraoxybenzoate 0.10 (weight part) butyl parahydroxybenzoate 0.05 (weight parts) tocopherol acetate 0.20 (weight parts) total 10 0 (weight parts) above formulation odor , Were added and uniformly mixed in heated aqueous solution 80 ° C [liquid oil component], 800 r with a propeller stirrer
It was stirred under the condition of pm. While continuing to stir, [polymer component]
Was added, [solid oily component] uniformly dissolved at 80 ° C was added, and the mixture was vigorously stirred to obtain capsules having an average particle size of 500 nm.

Example 3 [Liquid oily ingredient] Jojoba oil 20.00 (weight part) Mink oil 5.00 (weight part) Liquid lanolin 5.00 (weight part) Isopropyl palmitate 5.00 (weight) Parts by weight) Liquid paraffin 10.0 (by weight) Tocopherol acetate 0.50 (by weight) Stearyl glycyrrhetinate 0.18 (by weight) [Polymer component] Nylon 12 31.0 0 (by weight) [ Solid oil component] Microcrystalline wax 6.00 (weight part) Dimethylpolysiloxane 6.00 (weight part) Stearic acid 3.00 (weight part) Cholesteryl hydroxystearate 3.00 (weight part) Ceresin 3.07 (weight parts) cetanol 2.00 (weight parts) propyl parahydroxybenzoate 0.10 (weight parts) butyl parahydroxybenzoate 0.05 (weight parts) tocopherol acetate 0.10 (weight parts) in a total of 10 0 (weight parts) above formulation was heated to 80 ° C It was added and uniformly mixed in the aqueous solution [Liquid oil component], 700r with a propeller stirrer
It was stirred under the condition of pm. While continuing to stir, [polymer component]
Was added, [solid oily component] uniformly dissolved at 80 ° C was added, and the mixture was vigorously stirred to obtain capsules having an average particle size of 500 nm.

[Cosmetic gel] Purified water Appropriate amount Carboxyvinyl polymer 0.60 (part by weight) Methyl paraoxybenzoate 0.20 (part by weight) 1,3-butylene glycol 10.00 (part by weight) Triethanolamine 0.60 (weight parts) in total of 10 0 (weight parts) above formulation was heated to 80 ° C were uniformly dissolved, to prepare a cosmetic gel.

A gel containing capsules was prepared by mixing the cosmetic gel prepared with the capsule prepared in (2) with a ratio of 10:90.

Example 4 [Cream] <Oil phase> White beeswax 10.00 (weight part) Cetanol 2.00 (weight part) Lanolin 5.00 (weight part) Squalane 25.00 (weight part) Part) Olive oil 7.00 (weight part) ceresin 2.00 (weight part) lipophilic glyceryl monostearate 2.00 (weight part) POE (20) sorbitan monostearate 2.00 (weight part) phenoxyethanol 0.20 (weight part) <water phase> Purified water proper amount 1,3-butylene glycol 5.00 (weight part) methyl paraoxybenzoate 0.20 (weight part) edetate disodium 0.055 (weight part) part) <flavor> perfume 0.20 (weight parts) total 10 0 (weight parts) was above formulation at <oil phase> and the <aqueous phase> uniformly dissolved at 80 ° C and mixed. After cooling to 50 ° C, <fragrance> was added to prepare [cream].

A cream containing capsules was prepared by mixing the cream prepared with the capsule prepared in Example 3 with the cream prepared at a ratio of 15:85.

Example 5 [Emulsion] <Oil phase> Stearic acid 2.50 (weight part) Cetanol 1.50 (weight part) Vaseline 5.00 (weight part) Liquid paraffin 7.00 (weight part) Olive oil 3.00 (weight part) ) POE (20) sorbitan monolaurate 1.00 (parts by weight) Self-emulsifying glyceryl monostearate 1.00 (parts by weight) Phenoxyethanol 0.10 (parts by weight) Propyl paraoxybenzoate 0.20 (parts by weight) <aqueous phase> Purified water Appropriate amount polyethylene glycol 1500 3.00 (weight parts) triethanolamine 1.00 (weight parts) methyl parahydroxybenzoate 0.20 (weight parts) 1,3-butylene glycol 2.00 (weight parts) <perfume> perfume 0.20 (weight parts) Total 100 (parts by weight) With the above formulation, <oil phase> and <water phase> were uniformly dissolved and mixed at 80 ° C. After cooling to 50 ° C, <fragrance> was added to prepare [milky lotion].

A capsule-containing emulsion was prepared by mixing the emulsion prepared with the capsule prepared in Example 3 with the emulsion prepared at a ratio of 10:90.

Example 5 [Facial cleansing cream] <Oil phase> Stearic acid 15.00 (weight part) Palmitic acid 5.00 (weight part) Myristic acid 12.0 (weight part) Lauric acid 4. 00 (weight part) Jojoba oil 2.00 (weight part) Concentrated glycerin 15.0 0 (weight part) 1,3-butylene glycol 10.00 (weight part) Lipophilic glyceryl monostearate 2.00 ( Weight part) Lauric acid diethanolamide 3.00 (weight part) <Water phase> Potassium hydroxide 7.00 (weight part) Tetrasodium edetate dihydrate 0.05 (weight part) Methyl paraoxybenzoate 0.20 (weight parts) purified water q.s. <perfume> perfume 0.30 (weight parts) total 10 0 (weight parts) uniformly and <oil phase> in the above formulation the <aqueous phase> at 80 ° C It was dissolved in and mixed. After cooling to 50 ° C, <fragrance> was added to prepare [facial cleansing cream].

A facial cleansing cream containing capsules was produced by mixing the facial cleansing cream produced with the capsule produced in Example 3 in a ratio of 5:95.

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Claims (8)

[Claims] 1. A capsule characterized in that a solid oily component is coated around a polymer component containing a liquid oily component. 2. The melting temperature of the solid oil component is 30 to
2. The capsule according to claim 1, wherein the temperature is 100 ° C. and is higher than the temperature at which the liquid oily component begins to solidify. 3. The capsule according to claim 1 or 2, wherein the weight ratio of the liquid oil component to the polymer component is 0.5 to 10. 4. The liquid oily component and the solid oily component are higher fatty acids, animal and vegetable oils, hydrocarbons, esters, silicones, higher alcohols, pigments, plant extracts,
3. The capsule according to claim 2, which is one or more selected from ultraviolet absorbers. 5. An external preparation for skin, which comprises the capsule according to any one of claims 1 to 4. 6. A cosmetic product comprising the capsule according to claim 1 or 4. 7. A liquid oily component is stirred with a heated aqueous solution, a polymer component is added to adjust the inside of the capsule, and then a solid oily component is added, and the aqueous solution is rapidly cooled to coat the circumference of the capsule. 5. The method for producing a capsule according to claim 1, which is characterized in that 8. The temperature of the heated aqueous solution is higher than the temperature at which the solid oily component begins to solidify.
7. The method for producing a capsule according to 7.