JPH1171228A - Water-in-oil emulsion composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition useful as a base for cosmetics or medicines having hemostatic effect, excellent in stability with the lapse of time, benign to the skin and excellent in feeling when applied, by including a dextrin fatty acid ester-contg. oily phase component, a moisturizer-contg. aqueous phase and aluminum-contg. powder. SOLUTION: This composition is obtained by including (A) an oily phase component containing 0.1-10 wt.% of at least one kind of dextrin fatty acid ester (e.g. dextrin palmitate), (B) 1-70 wt.% of an aqueous phase containing a moisturizer (e.g. polyethylene glycol) and (C) 0.1-50 wt.% of at least one kind of aluminum-contg. powder (esp. kaolin) in a weight ratio A/C of, in particular, 0.01-10, and also, as necessary, by incorporating the component A with (D) 5-30 wt.% of at least one kind of silicone-based oily component.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a water-in-oil emulsion composition used as a cosmetic or pharmaceutical base, and more particularly to an improvement in its hemostatic effect, stability over time, usability and moisturizing effect.

[0002]

2. Description of the Related Art Conventionally, when the skin is hurt during shaving or shaving, a wound dressing or a petrolatum base has been applied to stop bleeding. However, wound medicine does not have a moisturizing effect, and even if hemostasis can be achieved, the skin may become rough. Vaseline base also had disadvantages such as oily stickiness and glare. Therefore, it has been necessary to apply a water-in-oil type cream or ointment composed of an oil phase component and an aqueous phase component, having both a hemostatic effect and a moisturizing effect. However, when producing water-in-oil emulsions such as creams and ointments, it is normal that a surfactant is used, and the conventionally used surfactant is
Some people may feel skin irritation, and many consumers have anxiety. In addition, water-in-oil emulsions using these conventional surfactants have a sticky feeling of use and are not organoleptically favorable, and further have problems such as poor water resistance, high silicone oil content and poor hemostasis. was there.

[0003] Against this background, the use of surfactants has been reduced as much as possible, and emulsions that are more gentle on the skin have been developed. For example, clay minerals (JP-A-56-150007, JP-A-57-1681)
No. 2, JP-A-64-3529, JP-A-58-1245.
No. 35), silicone oil (JP-A-61-66752).
And glycyrrhizin (JP-A-57-62214) are known as emulsifiers or emulsifiers.

[0004]

However, such an emulsion which is more gentle on the skin or an emulsion which uses a very small amount of a surfactant has a narrow stable region, and contains a high amount of a humectant, moisture, or silicone oil. It was difficult to say that it was difficult to solve the problem of touch, and it was hard to say that the hemostatic effect was good.

[0005] The present invention has been made from such a viewpoint, and is excellent in stability over time by adding a powder containing aluminum as a component without using a surfactant or using only a very small amount, It is an object of the present invention to provide a water-in-oil emulsion composition which is less sticky and uncomfortable to the skin, has a large moisturizing effect for preventing drying of the skin, further has an excellent hemostatic effect, and is excellent in persistence of the effect.

[0006]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems. As a result, the present inventors have formulated an oil phase component containing a specific amount of dextrin fatty acid ester, an aqueous phase component and aluminum-containing powder. Water-in-oil type with excellent stability over time, gentle to the skin, less sticky and uncomfortable to the skin, excellent in hemostasis effect, large in moisturizing effect to prevent drying of skin, and excellent in sustained effect The inventors have found that an emulsion composition can be obtained, and have completed the present invention. Although various compounds having a hemostatic action can be considered, powders containing aluminum as a component are selected because they have excellent hemostatic effect, suppress stickiness and do not irritate the skin.

That is, the water-in-oil emulsion composition according to the present invention comprises an oil phase containing a dextrin fatty acid ester and an aqueous phase containing a humectant, irrespective of the presence or absence of a surfactant. It contains aluminum-containing powder and has a hemostatic effect. In the water-in-oil emulsion composition according to the present invention, one or more aluminum-containing powders may be used in an amount of 0.1 to 5 with respect to the total amount of the emulsion composition.
It is preferred to contain 0% by weight.

In the water-in-oil emulsion composition according to the present invention, one or two or more dextrin fatty acid esters are contained in an amount of 0.1 to 10% by weight based on the total weight of the emulsion composition.
It is preferred to contain. In addition, in the water-in-oil emulsion composition according to the present invention, it is preferable to use kaolin as the aluminum-containing powder. Further, in the water-in-oil emulsion composition according to the present invention, the aqueous phase component is 1 to 7
It is preferred to contain 0% by weight.

In the water-in-oil emulsion composition according to the present invention, it is preferable that the compounding weight ratio of dextrin fatty acid ester / aluminum-containing powder is 0.01 to 10. Further, in the water-in-oil emulsion composition according to the present invention, it is preferable that the oil phase contains 5 to 30% by weight of one or more silicone oil components in the oil phase based on the total amount of the emulsion composition. .

[0010]

Embodiments of the present invention will be described below in detail. The water-in-oil emulsion composition of the present invention refers to a composition in which fine oil phase particles and / or fine water phase particles are stably present in the system, such as cosmetics, pharmaceuticals, and quasi-drugs. Used for skin and hair.

As the dextrin fatty acid ester in the present invention, an ester of dextrin and a higher fatty acid having 12 to 22 carbon atoms is used. Specifically, dextrin laurate, dextrin myristate, dextrin stearate, dextrin behenate, coconut palm Oil fatty acid dextrins and the like. Of these, dextrin palmitate is most preferred in terms of stability and usability.

The dextrin fatty acid ester is marketed by Chiba Flour Milling as "Leopearl KL", "Leopearl KE", etc., but is not limited thereto. The blending amount of the dextrin fatty acid ester in the present invention is preferably 0.1 to 10% by weight, more preferably 0.5 to 7% by weight, based on the total amount of the water-in-oil emulsion composition. If the amount is less than 0.1% by weight, there is a problem in stability at high temperatures, and if it exceeds 10% by weight, stickiness may occur in usability.

Specific examples of the aluminum-containing powder used in the present invention include aluminum silicate, hydrous aluminum silicate, aluminum powder, aluminum oxide,
Fatty acid soap-based aluminum salts such as aluminum potassium sulfate, aluminum magnesium silicate, aluminum stearate, aluminum palmitate and the like can be mentioned. Of these, kaolin (aluminum silicate or hydrous aluminum silicate or a mixture thereof) is
Most preferable from the viewpoint of hemostatic effect. The mixing amount of such aluminum-containing powder is 0.1 to 50% by weight based on the total amount.
Is preferred. If the amount is more than 50% by weight, the stability as a base is deteriorated, and an emulsification system may not be established due to agglomeration of powder.

The weight ratio of dextrin fatty acid ester / aluminum-containing powder in the water-in-oil emulsion composition of the present invention is from 0.01 to 10. If the ratio is out of this range, the stability of the emulsified composition may decrease, which is not preferred. The amount of the aqueous phase component in the water-in-oil emulsion composition of the present invention is preferably in the range of 1 to 70% by weight, and 70% by weight.
If the aqueous phase component exceeds the above range, it may not be preferable in terms of emulsion stability.

In the water-in-oil emulsion composition of the present invention, in addition to the above essential components, components generally used in external preparations for skin such as cosmetics and pharmaceuticals do not impair the desired effects of the present invention. It can be blended in the range.

As the oil component usable in the present invention, any oil component from liquid to solid commonly used in ordinary cosmetics and pharmaceuticals can be used. Examples of the liquid oil include avocado oil, camellia oil, evening primrose oil, and turtle Oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, linseed oil, castor oil, safflower oil, cottonseed oil,
Eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate, etc. , Cocoa butter,
Coconut butter, horse fat, hardened coconut oil, palm oil, tallow, sheep butter, hardened beef tallow, palm kernel oil, lard, beef tallow, mokuro kernel oil, hardened oil, beef tallow, mokuro, hardened castor oil, etc. Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, lanolin hexyl, reduced lanolin, and jojo. Examples of hydrocarbon oils such as barrow, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether include liquid paraffin, ozokerai , Squalene, vaseline, microcrystalline wax, oils such as pristane, paraffin, ceresin and the like, and higher fatty acids include, for example, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearin Examples of higher alcohols such as acid, undecylenic acid, tallic acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) include, for example, lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl Straight-chain alcohols such as alcohol, oleyl alcohol and cetostearyl alcohol, monostearyl glycerin ether (bacyl alcohol), 2-
Synthetic ester oils such as decyltradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldecanol, isostearyl alcohol, octyldodecanol, and the like, as synthetic ester oils, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, palmitin Isopropyl acetate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate,
Isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, di-
Ethylene glycol 2-ethylhexylate, dipentaerythritol fatty acid ester, monoisostearic acid
N-alkyl glycol, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, pentane tetra-2-ethylhexylate Erythritol, glycerin tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoate, methyl castor oil fatty acid methyl Ester, oleic acid oil, cetostearyl alcohol, acetoglyceride, palmitic acid
2-heptylundecyl, diisobutyl adipate, N
-Lauroyl-L-glutamic acid-2-octyldodecyl ester, adipic acid-di-2-heptylundecyl, ethyl laurate, sebacic acid-di-2-ethylhexyl, myristic acid-2-hexyldecyl, palmitic acid-2- Hexyldecyl, di-2-hexyldecyl adipate, diisopropyl sebacate, succinic acid-2
-Ethylhexyl, ethyl acetate, butyl acetate, amyl acetate, triethylyl citrate and the like can be used alone or in any combination.

In the present invention, it is desirable to incorporate a silicone oil component in order to improve the feel and the water resistance. Examples of the silicone oil component include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane, and cyclic polysiloxanes such as decamethylpolysiloxane, dodecamethylpolysiloxane, and tetramethyltetrahydrogenpolysiloxane. Examples thereof include siloxane, silicone resin and silicone rubber forming a three-dimensional network structure, and these can be used alone or in any combination.

The content of these silicone oil components is 5 to 5.
It is preferably 30% by weight, and when blended at 5% by weight or more, it is often possible to further improve the feeling of use and water resistance.
It is not preferable to add more than the weight% because the emulsion stability may be deteriorated in some cases.

The humectant that can be used in the present invention is not particularly limited as long as it is a compound having a moisturizing effect on the skin, and any component that is usually used as a humectant in cosmetics can be used. However, preferably, polyethylene glycol, propylene glycol, glycerin,
1,3-butylene glycol, hexylene glycol,
One or two or more selected from xylitol, sorbitol, maltitol, diglycerin (EO) PO adduct, polyoxyethylene methyl glycoside (10EO), and erythritol can be arbitrarily combined.

Further, the water-in-oil type emulsion composition of the present invention includes:
Further, various optional components can be blended, and as preservatives, paraoxybenzoate, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, and the like, and further as an ultraviolet absorber, paraaminobenzoic acid, Homomenthyl-7N-acetylarantranilate, butylmethoxybenzoylmethane, di-
Paramethoxycinnamic acid-glyceryl mono-2-ethylhexanoate, amyl salicylate, octyl methoxycinnamate, 2,4-dihydroxybenzophenone and the like include vitamin A and its derivatives, vitamin B
Vitamin B such as _6- dioctanoate, vitamin B _6- dioctanoate hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₂ and derivatives thereof, vitamin B ₁₂ , vitamin B ₁₅ , and derivatives thereof, ascorbic acid, ascorbic acid sulfate (salt ), Ascorbic acid phosphate (salt), ascorbic acid dipalmitate, ascorbic acid glucoside, etc., vitamin Cs, α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin E such as vitamin E nicotinate, vitamin Vitamins such as Ds, vitamin H, pantothenic acid, pantethine, nicotinamide, benzyl nicotinate, γ-oryzanol, allantoin, glycyrrhizic acid (salt), glycyrrhetinic acid and derivatives thereof,
Hinokitiol, mucidin, visabolol, eucalyptol, thymol, inositol, saponins (saikosaponin, carrot saponin, hepimasaponin, muclosaponins), pantothenyl ethyl ether, ethinyl estradiol, tranexamic acid, cepharanthin,
Examples of the water-soluble polymer such as placenta extract include natural products (for example, gum arabic, gum tragacanth, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed, (quince), alge colloid, Vegetable polymers such as starch, microbial polymers such as xanthan gum and dextran, animal polymers such as collagen and gelatin), semi-synthetic water-soluble polymers (eg, methylcellulose, nitrocellulose,
Ethyl cellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, cellulose sulfate, hydroxypropylcellulose, carboxymethylcellulose sodium (CMC), cellulose-based polymers such as crystalline cellulose, alginic acid-based polymers such as sodium alginate), synthetic polymers (for example, Polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer (Carbopol)
Vinyl polymers such as polyethylene glycol 600
Polyoxyethylene-based polymers such as 0, 20000). In addition, dyes, sequestering agents, antioxidants, fragrances, filming agents, and the like can be mentioned.

[0021]

The present invention will be described in more detail with reference to Examples, Comparative Examples and Test Examples of the present invention, but the present invention is not limited to these Examples. In addition, the unit of the compounding amount shown below is all weight%. First, the present inventors conducted the following tests in the course of examining a water-in-oil emulsion composition that is gentler to the skin and has excellent moisturizing and hemostatic effects.

[0022]Comparison between the present invention and the prior art  A cream according to the present invention was prepared by preparing a cream having the composition shown in the following table.
Product (Formulation Example 1), conventional general composition (Comparative Examples 1 to 5)
4).

[0023]

[Table 1]  Composition (cream) Formulation Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4  A. Oil phase Liquid paraffin 15.0 20.0 20.0 10.0 10.0 Vaseline 5.0--1.0 25.0 Paraffin wax 5.0---25.0 Dimethylpolysiloxane 5.0 5.0. 0 5.0 5.0-Octamethylcyclotetrasiloxane 10.0 5.0 10.0-10.0 Dextrin palmitate 1.0-1.0--Kaolin^* 10.0--1.0-B. Aqueous phase Glycerin 10.0 5.0-5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0--perfluorophenol recall-5.0-10.0-polyethylene glycol 1500 25. 0--5.0 20.0 Talc-30.0 10.0 5.0-Purified water 9.0 25.0 49.0 58.0 5.0  * Aluminum silicate (the same applies hereinafter)
The aqueous phase component B is added to the oil phase component A,
Disperse and stir the resulting emulsion to cool to room temperature
And prepared.

Next, the evaluation items and evaluation criteria of the effect test of the prescription examples and the comparative examples will be described in detail.

<Stability Evaluation Test> Each sample was subjected to -10 ° C.
The samples were stored in a thermostat at 0 ° C., 5 ° C., 30 ° C., and 45 ° C. for 3 months, and were evaluated for changes in color, odor, appearance, and feeling of use according to the following criteria. [Evaluation Criteria] A: There is no change in any of color tone, smell and appearance properties. Δ: Slight change was observed in any of color tone, smell and appearance properties. ×: A large change was observed in any of color tone, smell, and appearance properties.

<Sensory Evaluation Test> Each sample was used by 24 female panelists, and the following criteria were used to evaluate stickiness, uncomfortable feeling on the skin, moist feeling and durability of moist feeling.

[0027]

[Table 2]  Evaluation item (feeling of use) Yes Somewhat No  Stickiness 0 point 1 point 2 points Uncomfortable feeling to skin 0 1 2 Moist feeling 2 1 0 Persistence of moist feeling 2 1 0  [Evaluation Criteria] ：: Average of evaluation points 1.5 or more Δ: Average of evaluation points 0.5 or more and less than 1.5 points ×: Average of evaluation points less than 0.5 point

<Stability and Usability of Formulation Examples and Comparative Examples 1 to 4>
The water-in-oil emulsified cosmetic preparation No. 4 was prepared, and the evaluation test was performed. The test results are shown in Table 3.

[0029]

[Table 3]  Formulation Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4  Stability ○ × × × ○ Stickiness ○ ○ ○ △ × Uncomfortable feeling to skin ○ ○ ○ △ × Moist feeling ○ △ × △ ○ Persistence of moist feeling ○ △ × △ ○

As can be seen from the above description, the water-in-oil emulsion composition of the present invention (Formulation Example 1) has excellent stability of the emulsion composition, has no stickiness, has no uncomfortable feeling on the skin, and has excellent moist feeling. It can be seen that the moist feeling is also excellent in persistence. In contrast, Comparative Examples 1 to 3 were found to have poor stability of the emulsion composition. Comparative Example 4 has good stability because it contains a large amount of solid oil, but it is found that stickiness and uncomfortable feeling to the skin occur in terms of usability.

Therefore, a water-in-oil emulsion composition comprising an oil phase containing a dextrin fatty acid ester, an aqueous phase containing a humectant, and an aluminum-containing powder, has stability and usability (non-stickiness, It shows that the skin is excellent in all aspects of non-discomfort to the skin, moist feeling, and sustained moist feeling.

<In Vitro Hemostatic Effect Experiment> After suspending various powders in a test tube at a concentration of 1% by weight in citrate anticoagulated human blood, the time required for coagulation is 1 hour.
The measurement was performed every 5 seconds, and the hemostatic effect of various powders on human blood was examined. The test results are shown in Table 4.

[0033]

[Table 4]

From the above results, it was found that aluminum-containing powders (kaolin, aluminum oxide, aluminum potassium sulfate,
It is understood that aluminum magnesium silicate and aluminum stearate) have an excellent hemostatic effect as compared with other powders.

[0035]Each component  Next, various water-in-oil emulsion compositions shown in the following table
Prepared, according to the formulation example, stability of the emulsion composition,
Usability (stickiness, discomfort to skin, moist feeling, moist
(Permanence of the feeling). According to the table
The results are noted.

[0036]

[Table 5]  Composition (cream) Formulation Example 2 Formulation Example 3 Comparative Example 5 Comparative Example 6 Comparative Example 7  A. Oil phase Liquid paraffin 10.0 10.0 10.0 10.0 10.0 10.0 Vaseline 5.0 5.0 5.0 5.0 5.0 Paraffin wax 5.0 5.0 5.0 5.0 5.0 0.0 dimethylpolysiloxane 10.0-10.0 10.0 10.0 10.0 dimethylmethylcyclopentasiloxane 5.0-5.0 5.0 5.0 dextrin palmitate 1.0 1.0-1.0- Kaolin^* 10.0 10.0 10.0 --- B. Aqueous phase glycerin 5.0 5.0 5.0 5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 polyethylene glycol 1500 30.0 30.0 30. 0 30.0 30.0 Purified water 14.0 29.0 25.0 24.0 15.0  Stability ○ ○ × × × Sticky ○ △ △ △ ○ Uncomfortable feeling to skin ○ ○ ○ ○ ○ Moist feeling ○ ○ ○ ○ ○ Persistence of moist feeling ○ ○ ○ ○ ○

From the above results, it is understood that the water-in-oil emulsion compositions (Comparative Examples 5 to 7) in which the aluminum-containing powder (kaolin) and the dextrin fatty acid ester (dextrin palmitate) are not used together have poor emulsion stability. . In contrast, the water-in-oil emulsion compositions (Formulation Examples 2 and 3) using both the aluminum-containing powder and the dextrin fatty acid ester have excellent emulsion stability. However, the composition of Formulation Example 2 in which a silicone-based oil is blended is more excellent in usability (stickiness) than the water-in-oil emulsion composition in which a silicone-based oil is not blended (Formulation Example 3). You can see that.

Therefore, the water-in-oil emulsion composition comprising an oil phase containing a dextrin fatty acid ester, an aqueous phase containing a humectant, and an aluminum-containing powder is stable and usable (greasy, uncomfortable to the skin). It is clear that both the moist feeling and the moist feeling persistence are excellent. In addition, it can be seen that it is preferable to incorporate a silicone-based oil component into the water-in-oil emulsion composition of the present invention from the viewpoint of improving the feel.

[0039]Amount of aluminum-containing powder  Various formulations with different amounts of aluminum-containing powder as shown below
Prepare a water-in-oil emulsion composition of the stability of the emulsion composition
The test was performed according to the above-mentioned formulation examples. The results are shown in the table below.
I showed it.

[0040]

[Table 6]  Composition (cream) Test Example 1 Test Example 2 Test Example 3 Test Example 4 Test Example 5  A. Oil phase Liquid paraffin 10.0 10.0 10.0 10.0 10.0 10.0 Vaseline 5.0 5.0 5.0 5.0 5.0 Paraffin wax 5.0 5.0 5.0 5.0 5.0 0.0 dimethylpolysiloxane 10.0 10.0 10.0 10.0 10.0 10.0 dimethylmethylcyclopentasiloxane 5.0 5.0 5.0 5.0 5.0 dextrin palmitate 1.0 1.0 1 1.0 1.0 1.0 Kaolin^* 0.1 1.0 20.0 30.0 50.0 B. Aqueous phase Glycerin 5.0 5.0 5.0 5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 Polyethylene glycol 1500 30.0 30.0 20. 0 10.0-Purified water 23.9 23.0 14.0 14.0 4.0  Stability ○ ○ ○ ○ ○ Sticky △ ○ ○ ○ ○  From the above results, the distribution of aluminum-containing powder (kaolin)
Water-in-oil emulsion composition containing 0.1 to 50% by weight of combined amount
The object is found to be stable.

[0041]Dextrin fatty acid ester content  Seeds with different amounts of dextrin fatty acid esters shown below
Prepare a water-in-oil emulsion composition of various formulations,
Stability and usability (stickiness) tests were applied to the above formulation examples
I went according to. The results are shown in the following table.

[0042]

[Table 7]  Composition (cream) Test Example 6 Test Example 7 Test Example 8 Test Example 9 Test Example 10  A. Oil phase Liquid paraffin 10.0 10.0 10.0 10.0 10.0 10.0 Vaseline 5.0 5.0 5.0 5.0 5.0 Paraffin wax 5.0 5.0 5.0 5.0 5.0 0.0 dimethylpolysiloxane 10.0 10.0 10.0 10.0 10.0 10.0 tecamethylcyclopentasiloxane 5.0 5.0 5.0 5.0 5.0 dextrin palmitate -0.1 1.0 10.0 15.0 kaolin^* 10.0 10.0 10.0 10.0 10.0 10.0 B. Aqueous phase glycerin 5.0 5.0 5.0 5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 polyethylene glycol 1500 30.0 30.0 30. 0 25.0 20.0 Purified water 15.0 14.9 14.0 10.0 10.0  Stability △ ○ ○ ○ ○ Sticky ○ ○ ○ ○ △

From the above results, it can be seen that the water-in-oil emulsion composition containing dextrin fatty acid ester (dextrin palmitate) in an amount of 0.1 or more has good stability. And it turns out that stickiness arises when a compounding quantity exceeds 10 weight%.

[0044]Silicone oil content  Various oils with different amounts of silicone based oils listed below
Prepare a water-in-water emulsion composition, the stability of the emulsion composition and
The usability (stickiness) test was conducted according to the above formulation examples.
Was. The results are shown in the following table.

[0045]

[Table 8]  Composition (cream) Test Example 11 Test Example 12 Test Example 13 Test Example 14 Test Example 15  A. Oil phase Liquid paraffin 10.0 10.0 10.0 10.0 10.0 10.0 Vaseline 5.0 5.0 5.0 5.0 5.0 Paraffin wax 5.0 5.0 5.0 5.0 5.0 1.0 dimethylpolysiloxane--10.0 10.0 15.0 tecamethylcyclopentasiloxane-5.0-10.0 15.0 dextrin palmitate 1.0 1.0 1.0 1.0 1.0 1.0 Kaolin^* 10.0 10.0 10.0 10.0 10.0 10.0 B. Aqueous phase glycerin 5.0 5.0 5.0 5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 Polyethylene glycol 1500 5.0 5.0 5.0 0 5.0 5.0 Polyethylene glycol 6000 5.0 5.0 5.0 5.0 5.0 Purified water 49.0 44.0 39.0 29.0 19.0  Silicone oil 0 5.0 10.0 20.0 30.0  Stability ○ ○ ○ ○ ○ Sticky △ ○ ○ ○ ○

From the above results, it can be seen that the water-in-oil emulsion composition containing at least 30% by weight of the silicone oil (dimethylpolysiloxane, decamethylcyclopentasiloxane) has good stability. In addition, it can be seen that when the silicone oil component is blended in an amount of 5% by weight or more, a better feeling in use can be obtained in terms of non-stickiness.

[0047]Amount of water phase component  Next, the amount of the aqueous phase component was examined. First, the prescription example
1. Prepare oil phase A and water phase B having the same composition as
Preparation of various water-in-oil emulsion compositions with different amounts of phase B
The stability test of the emulsified composition was performed according to the above-mentioned formulation examples.
Was. The results are shown in the following table.

[0048]

[Table 9]  Composition (cream) Test Example 16 Test Example 17 Test Example 18 Test Example 19 Test Example 20  A. Oil phase 99.0 90.0 70.0 50.0 30.0 B. Aqueous phase 1.0 10.0 30.0 50.0 70.0  Stability ○ ○ ○ ○ ○

From the above results, it can be seen that in the present invention, the water-in-oil emulsion composition containing at least the water phase component in the range of 1 to 70% by weight is stable.

[0050]Dextrin fatty acid ester / aluminum-containing
Powder ratio  Dextrin fatty acid ester (DFE)
Various kinds of aluminum powder (Al) with different weight ratio
Prepare a water-in-oil emulsion composition and test the stability of the emulsion composition.
The experiment was performed according to the above-mentioned prescription example. The results are combined in the table below.
Shown.

[0051]

[Table 10]  Composition (cream) Test Example 21 Test Example 22 Test Example 23 Test Example 24 Test Example 25  A. Oil phase Liquid paraffin 10.0 10.0 10.0 10.0 10.0 10.0 Vaseline 5.0 5.0 5.0 5.0 5.0 Paraffin wax 5.0 5.0 5.0 5.0 5.0 0.0 dimethylpolysiloxane 10.0 10.0 10.0 10.0 10.0 10.0 dimethylmethylcyclopentasiloxane 5.0 5.0 5.0 5.0 5.0 dextrin palmitate-0.1 1.0 10.0 10.0 Kaolin^* 10.0 10.0 10.0 10.0 10.0 1.0 B. Aqueous phase glycerin 5.0 5.0 5.0 5.0 5.0 1,3-butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 polyethylene glycol 1500 25.0 25.0 25.0 0 25.0 25.0 Purified water 20.0 19.9 19.0 10.0 19.0  DFE / Al-0.01 0.1 110  Stability △ ○ ○ ○ ○

From the above results, it can be seen that the water-in-oil emulsion composition in which the weight ratio of dextrin fatty acid ester (dextrin palmitate) / aluminum-containing powder (kaolin) is 0.01 to 10 is stable.

Next, in order to further clarify the present invention, examples are shown below. Example 1 Cream A. Oil phase Liquid paraffin 10.0% Vaseline 5.0 Paraffin wax 5.0 Dimethylpolysiloxane 10.0 Decamethylcyclopentasiloxane 5.0 Dextrin palmitate 1.0 Kaolin (aluminum silicate) 10.0 B. Aqueous phase Glycerin 5.0 1,3-butylene glycol 5.0 Polyethylene glycol 1500 5.0 Polyethylene glycol 6000 5.0 Purified water 34.0

(Preparation method) The oil phase component A and the water phase component B were each dissolved at 70 ° C., and the water phase component B was added to the oil phase component A, subjected to homodisper treatment, and the obtained emulsion was stirred. And cooled to room temperature.

Example 2 Cream A. Oil phase squalane 20.0% hydrogenated palm oil 10.0 salami beeswax 5.0 dimethylpolysiloxane 10.0 decamethylcyclopentasiloxane 10.0 dextrin stearate 2.0 talc 3.0 kaolin (aluminum silicate) 5. 0 B. Aqueous phase Glycerin 10.0 Dipropylene glycol 5.0 Polyethylene glycol 1500 15.0 Polyethylene glycol 6000 5.0

(Preparation method) The oil phase component A and the water phase component B were each dissolved at 70 ° C., and the water phase component B was added to the oil phase component A, homodispersed, and the obtained emulsion was stirred. And cooled to room temperature.

Example 3 Cream A. Oil phase Liquid paraffin 10.0% Olive oil 15.0 Vaseline 10.0 Dimethyl polysiloxane 10.0 Decamethylcyclopentasiloxane 5.0 Dextrin palmitate 1.0 Aluminum oxide 3.0 Aqueous phase glycerin 5.0 1,3-butylene glycol 5.0 polyethylene glycol 1500 25.0 carboxyvinyl polymer 0.6 purified water 10.4

(Preparation method) The oil phase component A and the water phase component B are each dissolved at 70 ° C., and the water phase component B is added to the oil phase component A, and subjected to homodisper treatment, and the obtained emulsion is stirred. And cooled to room temperature.

Example 4 Cream A. Oil phase Liquid paraffin 10.0% Squalane 5.0 Vaseline 10.0 Paraffin wax 10.0 Cetyl 2-ethylhexanoate 5.0 Octamethylcyclotetrasiloxane 5.0 Dextrin palmitate 5.0 Aluminum stearate 1.0 0 B. Aqueous phase Dipropylene glycol 3.0 1,3-butylene glycol 3.0 Polyethylene glycol 1500 20.0 Polyethylene glycol 6000 1.0 Purified water 22.0

(Preparation method) The oil phase component A and the water phase component B are each dissolved at 70 ° C., and the water phase component B is added to the oil phase component A, homodispersed, and the obtained emulsion is stirred. And cooled to room temperature.

Example 5 Cream A. Oil phase Liquid paraffin 10.0% Squalane 5.0 Vaseline 5.0 Dimethylpolysiloxane 10.0 Octamethylcyclotetrasiloxane 5.0 Dextrin palmitate 3.0 Potassium aluminum sulfate 5.0 B. Aqueous phase glycerin 5.0 1,3-butylene glycol 5.0 polyethylene glycol 1500 5.0 polyethylene glycol 20000 1.0 purified water 41.0

(Preparation method) The oil phase component A and the water phase component B are dissolved at 70 ° C., respectively, and the water phase component B is added to the oil phase component A, homodispersed, and the obtained emulsion is stirred. And cooled to room temperature.

Example 6 Cream A. Oil phase Liquid paraffin 10.0% Squalane 5.0 Vaseline 2.0 Dimethylpolysiloxane 10.0 Decamethylcyclopentasiloxane 5.0 Dextrin palmitate 1.0 Kaolin (aluminum silicate) 40.0 Aqueous phase Glycerin 5.0 1,3-butylene glycol 5.0 Polyethylene glycol 1500 5.0 Purified water 12.0

(Preparation method) The oil phase component A and the water phase component B are each dissolved at 70 ° C., and the water phase component B is added to the oil phase component A, homodispersed, and the obtained emulsion is stirred. And cooled to room temperature.

Example 7 Cream A. Oil phase Liquid paraffin 10.0% Squalane 5.0 Vaseline 2.0 Candelilla wax 1.0 Dimethylpolysiloxane 1.0 Decamethylcyclopentasiloxane 20.0 Dextrin stearate 4.0 Aluminum oxide 10.0 Aluminum magnesium magnesium silicate 10 2.0 B. Aqueous phase Glycerin 5.0 1,3-butylene glycol 5.0 Polyethylene glycol 1000 5.0 Purified water 22.0

(Preparation method) The oil phase component A and the water phase component B were each dissolved at 70 ° C., and the water phase component B was added to the oil phase component A, subjected to homodisper treatment, and the obtained emulsion was stirred. And cooled to room temperature.

Example 8 Cream A. Oil phase Liquid paraffin 10.0% Paraffin wax 10.0 Decamethylcyclopentasiloxane 10.0 Octamethylcyclotetrasiloxane 10.0 Dextrin palmitate 3.0 Kaolin (aluminum silicate) 15.0 Aqueous phase Glycerin 10.0 Dipropylene glycol 5.0 Polyethylene glycol 1500 20.0 Polyethylene glycol 20000 5.0 Purified water 2.0

(Preparation method) The oil phase component A and the water phase component B were each dissolved at 70 ° C., and the water phase component B was added to the oil phase component A, subjected to homodisper treatment, and the obtained emulsion was stirred. And cooled to room temperature.

[0069]Evaluation of each example  Preparation of water-in-oil type emulsified cosmetics of Examples 1 to 8
Conduct usability and usability tests, and evaluate using the same evaluation criteria.
Was. The results of the evaluation are shown in the following table.

[0070]

[Table 11]  Example No. 1 2 3 4 5 6 7 8  Stability ○ ○ ○ ○ ○ ○ ○ ○ Sticky ○ ○ △ △ ○ ○ ○ ○ Uncomfortable feeling to the skin ○ ○ ○ ○ ○ ○ ○ ○ Moist feeling ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

[0071]

As described above, the water-in-oil emulsified composition according to the present invention comprises an oil phase containing a dextrin fatty acid ester, an aqueous phase containing a humectant, and an aluminum-containing powder. It is excellent in hemostatic effect, stability over time, gentle on the skin, less sticky and uncomfortable to the skin, has a large moisturizing effect to prevent dryness of the skin, and has excellent durability of the effect. .

Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 7/48 A61K 7/48

Claims (7)

[Claims] 1. A water-in-oil emulsified composition comprising an oil phase containing a dextrin fatty acid ester, an aqueous phase containing a humectant, and an aluminum-containing powder (having a hemostatic effect). . 2. The emulsion composition according to claim 1, wherein
A water-in-oil emulsion composition comprising 0.1 to 50% by weight of one or more aluminum-containing powders with respect to the total amount of the emulsion composition. 3. The emulsion composition according to claim 1, wherein one or more dextrin fatty acid esters are contained in an amount of 0.1 to 10% by weight based on the total weight of the emulsion composition. Water-in-oil emulsion composition. 4. The water-in-oil emulsion composition according to claim 1, wherein kaolin is used as the aluminum-containing powder. 5. A water-in-oil type emulsion composition according to claim 1, which contains 1 to 70% by weight of an aqueous phase component. 6. The water-in-oil type emulsification according to claim 1, wherein the weight ratio of dextrin fatty acid ester / aluminum-containing powder is from 0.01 to 10. Composition. 7. The emulsion composition according to claim 1, wherein the oil phase contains 5 to 30% by weight of one or more silicone oils based on the total amount of the emulsion composition. A water-in-oil type emulsion composition characterized by the above-mentioned.