JPH02117610A - Cosmetic containing capsule involving emulsion - Google Patents

Abstract

PURPOSE:To obtain cosmetic having excellent stability with time capable of imparting wet effect and emollient effect simultaneously, containing capsule of calcium alginate membrane involving O/W-type emulsion. CONSTITUTION:The aimed cosmetic contains an O/W-type emulsion-involving capsule in which capsule membrane is composed of calcium alginate in an amount of 0.1-1.0wt.% to total amount of the capsule. An O/W-type emulsion involving water-soluble alginic acid salt is prepared by conventional method and said emulsion is dropped into an aqueous solution of water-soluble calcium salt, then emulsion-involving capsules are generated and stirred for 10-60min after the dropping to classify to suitable size, thus washed with water to afford the above-mentioned capsule. Especially excellent effect is exhibited in the case of using aqueous base as a base of cosmetic and making to beauty wash or toilet lotion, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is a novel form containing capsules of calcium alginate film encapsulating O/W emulsion gold and capable of imparting moisturizing and emollient effects at the same time. The present invention relates to a cosmetic containing an emulsion-encapsulated capsule.

[Conventional technology and its problems]

Conventionally, cosmetics that contain gamma and moisture content have been emulsified, o
T-solubilization type and multi-no type are known.

Among these, emulsion-type cosmetics (emulsions) can supplement oil to the skin, but they leave a negative impact on the emulsion interface.
When a large amount of a metallic component, such as an electrolyte component, is added, the emulsion becomes unstable, and as a result, it is not possible to expect the effective moisturizing and moisturizing effects of these components.

Furthermore, solubilized cosmetics (lotions) can impart a moisturizing effect to the skin.

The amount of oil that can be blended is relatively small, and it is not possible to impart a light emollient effect.

Multi-layer cosmetics, in which the water phase and oil phase are separated,
It is possible to provide the skin with a moisturizing effect and an emollient effect at the same time. However, it is difficult to select the oil phase component and water phase component, and it is difficult to obtain a product that exhibits a clean separation state when left to stand. Since a large amount of liquid oil is used as an oil phase component, the spread of the sensory sensation during use is not fully satisfactory, and furthermore, there are frequent drawbacks such as unevenness during use and poor adhesion to the skin.

-1. Attempts have been made to form oil into small spheres and disperse and blend them into an aqueous phase. Attempts have been made to encapsulate oily or aqueous components using synthetic polymers or gelatin membranes and disperse and blend them into an aqueous or oil phase.

However, if the oil is dispersed in small spheres.

If it is not possible to maintain stability for a long period of time, and if it is formulated in encapsulation, the capsule membrane will be
Ivy. b, g There was a rare problem that construction was not easy.

For this reason, there has been a desire to develop products that take advantage of the characteristics of lotions and have both moisturizing and emollient effects, and to commercialize products that meet the diversifying needs of consumers.

[Means for solving the line layer]

Under these circumstances, the present inventor conducted intensive research and found that a cosmetic containing capsules of L7'c calcium alginate film containing O/W type emulsion has good stability over time and has a moisturizing effect. They discovered that it is possible to simultaneously impart an emollient effect and an emollient effect, and completed the present invention.

That is, the present invention provides a cosmetic containing a capsule containing an O/Wfi emulsion, in which the cassicle membrane is composed of 0.1 to 1.0% by weight of calcium alginate based on the total amount of the capsule. The present invention provides a cosmetic containing an emulsion encapsulating capsule.

In the present invention, the emulsion to be encapsulated in the capsule is of 0/W type and is composed of rice, an oily component that can be used in ordinary cosmetics, an aqueous component, and a surfactant, and is prepared by a conventional method. .

Such oily ingredients may be natural or synthetic, and may be liquid, semi-solid, or solid. For example, vegetable oils such as olive oil, jojoba oil, macadamian nut oil, and castor oil; beeswax, candelilla wax; Hydrocarbons such as wax n; fLm no 9 rough-in wax, squalane, vaseline, No-Q rough-in wax, and microcrystalline wax; glyceryl nitriisooctoate;
Examples include esters such as glyceryl monostearate and cetyl isooctane; silicone oils; and lanolin. These can be used alone or in combination of two or more.

In addition, surfactants include nonionic, anionic,
Cationic and amphoteric ones can be used, but
Nonionic surfactants are preferred from the viewpoint of skin irritation and the influence of calcium alginate on capsule membrane formation. Examples of the nonionic surfactant include decaglycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene rubitan fatty acid ester, and fl.
l, l'lioxy 3? Tyrene Rubit fatty acid ester? Lyoxyethylene glycerin fatty acid ester? Liethylene glycol fatty acid J-, stell,? Lyoxyethylene alkyl ethyl? Lyoxyethylene phytosterol, Ti? Lyoxyethylene phytostanol? Lyoxyethylene polyoxy fee lene alkyl edel,? Lioxyethene 17-alkyl ether, 4P lyoxyethylene and mustard oil, ? Lioxyethylene hydrogenated castor oil? Lyoxyethylene lanolin? Lioxyethylene lanolin alcohol, 〆lioxyethylene alkylamine, ? Examples include lyoxyethylene fatty acid amide and sucrose fatty acid ester.

In addition to these ingredients, the O/W type emulsion in the present invention includes ingredients used in ordinary cosmetics, such as ultraviolet absorbers, humectants, alcohols, preservatives, bathing polymers,
A dye, a test material, etc. can be added to -AM as necessary.

In the present invention, the Cassicell membrane is made of water-insoluble alginate by reacting water-based calcium alginate with water-based calcium alginate. It is formed by generating. As the water-soluble alginic acid 4, for example, alkali metal salts such as potassium alginate and sodium alginate; amine salts such as triethanolamine alginate and ammonium alginate are used, and the molecule t of these alginic acids is about X0OOOO to 300000. preferable. Further, as the water-bathable calcium salt, for example, calcium chloride, calcium sulfate, calcium citrate, calcium phosphate, etc. are used.

Calcium alginate F′i, 0 for capsule moneylender
．． It is preferable to use 1 to 1.0 arashi (hereinafter simply indicated by ``chi''). If it is less than 0.1 inch, a stable film cannot be obtained, and if it exceeds 1.0 inch, the film will remain as a residue on the plate during use.

The 0/W type emulsion-containing capsule can be manufactured, for example, as follows.

■Prepare an O7W type emulsion containing water-soluble alginate by a conventional method.

The emulsion of ■■ is dropped into 1000 mg of water containing a water-bathable calcium salt, and the emulsion is formed on the emulsion-containing capsule.

(2) After dropping, the particles are allowed to stand for 10 to 60 minutes to be divided into appropriate sizes, and then washed with water.

In addition, the size of the capsule is 關F speed.

It is proportional to the nozzle diameter when lower, but the diameter is about 041~5m.
You can get something like that. -! The capsules produced will be fragile when dried, so they should be stored in a water bath or
It is necessary to put it into use immediately.

Cosmetic composition 1 of the present invention can be obtained by blending the UlW type emulsion-containing capsule obtained as described above into a cosmetic composition or base. The blending amount of the emulsion-containing capsule is not particularly limited, and can be set depending on the purpose. In addition, as a cosmetic base, there are no particular limitations, but it can be blended with an aqueous base to create a lotion, Chemical M! E
Particularly excellent effects can be achieved when it is set to g or the like. Note that the cosmetic composition of the present invention may contain ingredients used in ordinary cosmetic compositions as appropriate.

The cosmetic of the present invention has a two-layer state in which the emulsion-containing capsules are suspended in the upper layer, and the specific gravity and viscosity of the base material are t's.
By adjusting the temperature, the capsules can be uniformly and stably dispersed.

〔Example〕

The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples.

0/V#ll emulsion-containing calcium alginate capsule tA*: Capsule l> (Ingredients) (1) Squalane □0.0 (
2) Glyceryl triisooctoate
10.0(3) Setanol
i.

(4) Hydrogenated lecithin 1.0 (5
) Glyceryl monostearate 0.2
(6) Monolay 7m (POE20) 7 and Vita 7
2.0(7) Sodium alginate (molecular weight approx. 12
0000) 0.5(8) Purified water
Remaining Amount (#! Method) Components (1) to (6) are heated and mixed, and components (7) to (8), which have been previously dissolved in a heating bath, are added thereto to emulsify and cooled. The resulting emulsion was filled into a syringe, and added dropwise to a 1% aqueous calcium chloride solution in an amount five times the amount of the emulsion, and after stirring for 30 minutes, capsules were obtained. This was then filtered and water
After c, it was stored in water.

Capsule 2> (Ingredients) (1) Macadamian nut oil
5.0 (2) Jojoba? 11
5.0 (3) Cholesterol
0.5(4) Cetyl isooctanoate
5.0 (5) Flow/Q rough-in
10.0(6) TriyFViafull(PO
E20)7 to Pill17 1.0(ηPOE(1
0) POP (4) Cetyl ether 0.5 (g
) POE (20) Hydrogenated castor oil 1
．． 0(9) Sodium alginate (molecular weight approximately 20,000
0) 0.2Ql) Purified water Remaining amount (manufacturing method) Capsules were obtained in the same manner as capsule 1 except that the emulsion was added dropwise to a 2% calcium acid aqueous solution of t times the amount of emulsion QIO.

Example 1 Makeup g having the composition shown in Table 1 was manufactured by V@, and the stability over time was
Capsule membrane persistence and usability were evaluated. The results are shown in Table 1.

(#! Method) Components (1) to acjt are mixed uniformly, and component (111
Cosmetic liquid gold was obtained from capsule membrane persistence of each of ~15 to 15.

(Evaluation method) Stability over time: Observation after leaving at 40°C for 1 month ○ Good with no change #) (feel) Feeling of use - Moist feeling on the skin after use ○ Melli 2: In Kasisel I, component (7) sodium alginate t-0.05% *3: In Kasisel I, component (7) sodium alginate t-1,5
% The product of the present invention is a cosmetic liquid with a new form, which exhibits a two-layered state with white cassissels floating on top of a transparent liquid when left to stand, and where cassicels are easily and uniformly dispersed when shaken before use. In addition, the capsule does not break even when shaken during use, has good stability over time, does not leave a capsule membrane on the skin after use, and is rare in that it has both a moisturizing effect and an emollient effect. .

Example 2 Cosmetics: (Ingredients) (1) Citric acid (2) Sodium citrate (3) Sodium lactate (4) Sodium pyrrolidone cargonate (5) Sodium chondroitin sulfate (6) 1,3-Butylene glycol ( 7)? Sodium lyacrylate (8) Setanol (9) Aroma uePOE (60) Hydrogenated castor oil aυ Vitamin E a Kukazocel 2 (1:1ff Fissure water (to) 0.1 0.4 0.8 0.5 o, o o 5 lOoo 0, O5 5,0 0, Ol 2.0 0.1 3.0 Remaining amount (:M method) Components (1) to (7) and u2 to (131) were mixed and dissolved in advance. Ingredients (8) to Ut- were added to obtain a cosmetic liquid.

The cosmetic lotion obtained as described above has a new form with a two-layered structure in which capsules are suspended in the upper layer.When used, it is shaken and applied to the skin, giving it a firm and moist feeling. It was rare to find something that could replenish oil.

Example 3 Cosmetics: (Ingredients) (1) Tartrol 0.2 (2
) Quince extrusion @0.1 (3) Algcolloid 0.05 (
4) Glycerin I O,0 (5
) Propylene glycol 3.0 (6)
Preservative 0.1 (η Capsule 15.0 (8) f! Water production remaining amount (manufacturing method) Mix ingredients (1) to (6) and (8), and add (7) to this.
Add and disperse. The cosmetic liquid obtained as described above has a novel form in which the capsules are uniformly dispersed in the m liquid, and is effective in imparting a moisturizing feeling to the skin and replenishing oil when used.

〔Effect of the invention〕

The emulsion-encapsulating capsule-containing cosmetic composition of the present invention can contain oil-based ingredients, which were difficult to incorporate in conventional lotions, as an emulsion regardless of the type of lotion, so it can simultaneously impart a moisturizing effect and an emollient effect. ,
It is possible to expand the sense of use in terms of sensory aspects. Also,
It has good stability over time, and when used, the capsule membrane does not remain on the skin and does not cause any discomfort.

Furthermore, the cosmetic composition of the present invention can have a two-layered state in which the emulsion-containing capsules are uniformly and stably dispersed or suspended in the upper layer, and has a novel form in terms of appearance.

that's all

Claims (1)

[Claims] 1. A cosmetic containing a capsule containing an O/W emulsion, in which the capsule membrane is 0% of the total amount of the capsule.
．． A cosmetic containing an emulsion encapsulating capsule, characterized by comprising 1 to 1.0% by weight of calcium alginate.