WO2003049707A1

WO2003049707A1 - Oil-in-water emulsion containing water-swellable clay mineral and use thereof

Info

Publication number: WO2003049707A1
Application number: PCT/JP2001/010882
Authority: WO
Inventors: Mika Inoue
Original assignee: L'oreal
Priority date: 2001-12-12
Filing date: 2001-12-12
Publication date: 2003-06-19
Also published as: AU2002221125A1

Abstract

An oil-in-water emulsion which comprises a fat phase, an aqueous phase, and a surfactant, and which further contains a water-swellable clay mineral incorporated therein together with a hydrophilic pigment and/or filler and has a surfactant content reduced to 5% or lower; a use of the emulsion in a cosmetic preparation or skin preparation; and a method of preparing the emulsion.

Description

Specification

Oil-in-water emulsion containing water-swellable clay mineral and use thereof

Technical field

The present invention relates generally to an oil-in-water emulsion suitable for use in cosmetics and the like, and more particularly to a stable oil-in-water emulsion in which pigments and / or fillers are well dispersed. The present invention also relates to a cosmetic or external preparation for skin using such an emulsion. Furthermore, the present invention also aims at improving the dispersibility of pigments and / or fillers using specific components and the stability of oil-in-water emulsions. Background art

Cosmetics containing high concentrations of pigments and / or fillers, such as foundations and makeup bases currently sold in the market, can be roughly divided into 0 / W emulsions, W / 0 emulsions and non- It is classified into water system and water system. W / 0 emulsions are available in solid, creamy, and milky liquids, and are excellent in terms of good makeup and water resistance. However, since the continuous phase is composed of oil, it has an oily feeling, lacks a refreshing feeling, and has a problem that the elongation is heavy. Also, usable surfactants are sorbinyl alkyl ester, dimethicone copolyol, and polyglycerylpolyol. Ricinoleate, polyglyceryl polyhydroxyacetate

—Limited to In addition, the W / 0 emulsion is easy to mix the pigment / filament at a high concentration, which can reduce the oiliness but does not improve the lack of freshness and the weight of elongation. .

On the other hand, the 0 / W type emulsion has a fresh feeling when used, and its growth is light. Therefore, when a cosmetic such as a foundation having a refreshing feel without an oily feeling is desired, it is desirable to use a 0 / W type emulsion. However, 0 / W type emulsions, for example,

Corrected form (Rule 91) If it does, it has some drawbacks, contrary to its good feel. First, since the continuous phase is an aqueous phase, it has poor water resistance and is susceptible to sweat. Also, compared to W / 0 type emulsions, it is difficult to obtain a high dispersibility and stability by blending pigment / filament at a higher concentration. It was necessary to prevent the aggregation and sedimentation of the pigment by increasing the viscosity of the emulsion by increasing the amount of the emulsion and the fatty phase, or by adding a water-soluble polymer.

However, these countermeasures had the following problems.

In other words, when the dispersibility and stability of the pigment are secured by increasing the emulsifier that acts as a dispersant for the pigment, that is, by increasing the surfactant, the water resistance of the product is significantly reduced by the surfactant, and the feel is also sticky. There is a problem that it becomes something.

Also, increasing the amount of the fat phase made the skin less adaptable, became too oily to give a heavy feel, and adversely affected the stability itself.

Furthermore, in the method of blending a water-soluble polymer, it was necessary to blend this water-soluble polymer in a high amount in order to achieve a viscosity that can prevent aggregation and sedimentation of the pigment. However, the higher the blending amount of the water-soluble polymer, the worse the elongation to the skin, and in some cases, when the skin was stretched, a residue like an eraser was formed. In addition, the feel tends to be sticky and the skin adaptation tends to be poor. Disclosure of the invention

The present inventors have conducted intensive studies in view of the above circumstances, and as a result, surprisingly, by using a water-swellable clay mineral as a thickener and dispersing a hydrophilic pigment and / or filler, an emulsifier It has been found that even if the amount is small, good pigment // filler dispersibility and emulsion stability can be ensured, and a 0 / W-type emulsion with a refreshing feel and a high matte effect can be obtained. It has also been found that in such a 〇 / W emulsion, good dispersibility and stability of the pigment can be ensured even when the amount of the fatty phase is suppressed.

Thus, the present invention provides a relatively large amount of water compared to the conventional 0 / W type emulsion. The main object of the present invention is to provide a 0 / W emulsion having excellent dispersibility and stability of the pigment and / or filler even when the pigment and / or filler is contained. It is also an object to provide a 0 / W type emulsion that has a refreshing feel and a high matte effect.

In the present invention, such an object is to provide an oil-in-water emulsion containing a fatty phase, an aqueous phase, and a surfactant, wherein the water-swellable clay mineral is contained together with a hydrophilic pigment and / or a filler to obtain a surfactant. This is achieved by reducing the amount of the agent to 5% or less, preferably 4% or less, more preferably 3% or less, and even more preferably 2% or less. Thus, in the present invention, in the preparation of an oil-in-water emulsion containing a large amount of pigment and / or filler, a water-swellable clay mineral is used to thicken the water, so that a hydrophilic pigment and / or filler is added. It is a well-dispersed one in which the surfactant is reduced, and preferably the amount of the fatty phase itself is also reduced. Such an oil-in-water emulsion has a reduced amount of an emulsifier and preferably a fatty phase, so that the above-mentioned problems associated with the increase in the amount of the emulsifier are of course not caused. It was found that the aforementioned problems of poor elongation to the skin, stickiness, and poor adaptation to the skin, which had occurred during the use, were also resolved.

In the above, the fact that the water-swellable clay mineral thickens the aqueous system has already been described, for example, in Cosmetics & Toiletries, Vo. 104, July 1989, p.87. However, according to this document, the use of a water-swellable clay mineral stably stabilizes the 0 / W emulsion by dispersing the hydrophilic pigment and / or filler even when the amount of the surfactant is kept low. There is no teaching or suggestion of what can be done. In fact, in the formulation described in the literature, as an emulsifier, 6% of oleic acid and 1% of triethanolamine, a neutralizing agent for producing fatty acid minerals, are blended. In addition, FR 2 750 602 in the name of the present applicant describes a cosmetic containing water-swellable synthetic my-power as an enhancer to enhance the protective effect of an ultraviolet ray protective agent. It is disclosed that inorganic pigments having a wavelength of 5 to 100 nm can also be used. However, the inorganic pigment used in the examples is a pigment that has been subjected to a hydrophobic surface treatment, does not use a hydrophilic pigment and / or a filler as in the present invention, and is a modified paper (regulation). 91) Does not teach or suggest that these can be dispersed stably and uniformly. Further, the formulation of the cosmetic is not limited to the 0 / W type, but also includes all types such as W / 0 type, 0 / W / 0 type, W / 0 / W type, etc. Although the water-swelling synthetic my power has been shown to be an enhancer that enhances the protective effect of the ultraviolet protective agent, the above-mentioned effect is obtained when this material is used as a thickener in the preparation of a 0 / W emulsion. It does not teach or suggest.

The term "water swelling" in "water swelling clay mineral" has a meaning generally understood by those skilled in the art, and particularly, the volume of the clay mineral increases due to absorption of water. Means that. The water swellability of a clay mineral can be quantified, for example, by measuring the viscosity in a state where the clay mineral is completely swelled by being dispersed in water. Water swellability is determined by adding a clay mineral to water at a concentration of 10 w / w% with stirring and uniformly swelling it all day and night in a state of uniform dispersion.

(25 ° C), measured using a viscometer RM 180 RHE 0 MAT (RHEOMETRIC SCIENTIFIC FE 丄 td) (shear rate of 200 S- ¹ , at time t = 10 minutes Is preferably measurable with spindle N 0.2 and has a viscosity reading of at least 20 Pa · s, more preferably a viscosity reading of spindle No. 3 of 20 More than P a · s.

Still another object of the present invention is to provide a cosmetic or a skin external preparation using the above oil-in-water emulsion.

Furthermore, an object of the present invention is to reduce the amount of surfactant used to 5% by weight or less, preferably 4% by weight or less, more preferably 3% by weight or less, and most preferably 2% by weight or less. And / or a method for preparing an oil-in-water emulsion containing a filler, wherein the pigment and / or the filler is a hydrophilic pigment and / or a filler, and a water-swellable clay mineral is further added. Another object is to provide a method characterized by improving the dispersibility of the filler and the stability of the emulsion.

Further objects, configurations, and effects of the present invention will become apparent from a detailed description of the embodiments of the present invention described below. Corrected form (Rule 91) Embodiment of the Invention

Thus, the oil-in-water emulsion according to a preferred embodiment of the present invention contains a fatty phase, an aqueous phase, and a surfactant, and contains a water-swellable clay mineral together with a hydrophilic pigment and / or filler. The amount of the surfactant is 5% or less, preferably 4% or less, more preferably 3% or less, and even more preferably 2% or less, and is prepared using a method well known to those skilled in the art.

The water-swellable clay mineral used in the oil-in-water emulsion according to the present invention is not limited to a natural one, and may be a synthetic product including a partially modified natural mineral, but is preferably a layered material belonging to the genus Smectite. A silicate mineral with a 2: 1 type structure in which one octahedral sheet is sandwiched between two tetrahedral sheets.

The following are listed as natural clay minerals that meet such requirements. 1 Montmorillonite, for example, Kunipia G4 (trade name), Kunipia G (trade name), Kunipia F (trade name) commercially available from Kunimine Industries Gelwhite HNF sterilise (trade name) commercially available from Laporte;

-Paiderite;

-Nontronite;

-Savonites, such as Veegum T (trade name), Veegum HV (trade name), Veegum F (trade name), Veegum K (trade name) commercially available from Vanderbilt;

-Hectolites, such as Hectabright AW (trade name), Hectabright 2000 (trade name), Bentone EW, Macaroide (trade name) sold by National Lead, available from American Colloid;

-United States;

One step site.

On the other hand, the synthetic product may be manufactured by any method, and in particular, those manufactured by three methods of a hydrothermal method, a melting method, and a solid-phase reaction method are well known and are preferably used. used. Particularly preferred compositions are:

(I) Synthetic smectites, such as Ionite (trade name) available from Mizusawa Chemical Industries, corrected paper (Rule 91) SWN (trade name) and SAN (trade name) marketed by Corp Chemical, Laponite (trade name) marketed by Laporte, Sumecton SA (trade name) marketed by Kunimine Industries;

(I) Synthetic my powers, for example, those marketed under the trade name of Submica E from Watchel.

Among the various clay minerals described above, the most preferred one is Submica E from Watscale. This is a fluorinated tetracyanite mica containing sodium in the interlayer ions and is a white powder with the following formula:

(N a ₂₀ ) X (M g O) y (S i O 2) z M g F 2

[Where X, y, and z are numbers that satisfy the following relationship:

0.1 ≤ x ≤ 0.5

1.5 ≤ y≤ 2

3.5 ≤ z ≤ 4]

have.

As described above, the water swellability of the water-swellable clay mineral suitable for the present invention can be measured with a spindle No. 2 using a viscometer RM180 RHE OMAT (RHEOMETRIC SCIE> H1FIC FELtd). Preferably, the viscosity reading is at least 20 Pa · s, and more preferably the viscosity reading at the spindle N 0.3 is 20 Pa · s or more. The viscosities of various clay minerals are shown in the following table.

Corrected form (Rule 91) Clay mineral Ingredient name Trade name Company name Spindle viscosity (reading value)

No. / Pa's Available / Unavailable Talc LUZE NAC LUZENAC 1 Unavailable

15MOO (low viscosity)

My power MEARLMICA ENGELHARD 1 25.5 Not possible

MMCF

Non-water swellable PDM-8W Topy Industries, Ltd. 1 26.0 Not possible Synthetic

Kaolin KAOLIN IMERYS 1 31.3 Not possible

SUPREME

Montmorikochi Night GELWHITE LAPORTE 3 21.8 OK

HNF

Sabonite VEEGUMHV VANDERBILT 3 38.5 Possible Synthetic water swelling power Submica E Watsukeru 4 27.7 Possible Synthetic savonite SUMECTON Kunimine Kogyo Co., Ltd. 4 48.8 Possible

-SA

Note) Clay minerals Sprinkle into water to a concentration of 10 W / W% while stirring with water using a stirrer (Rayneri / Groupe VMI), disperse uniformly, allow to expand completely for 24 hours, then room temperature (25 ° C) The viscosity was measured under the following conditions. Viscosity values were measured at a shear rate of 200 S-1 at a time t = 10 minutes.

In the oil-in-water emulsion of the present invention, the water-swellable clay mineral is preferably at a concentration of about 1 to about 20% by weight, more preferably about 3 to about 1% by weight, based on the total weight of the obtained emulsion. It can be contained at a concentration of 5% by weight.

The hydrophilic pigment and / or filler that can be contained in the oil-in-water emulsion according to the present invention may be any of those conventionally used or usable in the field of cosmetics and dermatology. Examples thereof include extender pigments, coloring pigments, inorganic pigments such as white pigments, organic pigments, pearlescent pigments, polymer powders, and functional pigments. Hydrophilic pigment and / or The filler may be an untreated hydrophilic pigment and / or filler, or may be a hydrophilic surface-treated pigment and / or filler.

More specifically, talc, non-swelling mai force, kaolin, calcium carbonate, magnesium carbonate, calcium anhydride, aluminum silicate, magnesium silicate, calcium silicate, aluminum oxide, barium sulfate, bengara, yellow iron oxide, Black iron oxide, chromium oxide, gunjiyou, konjiyo, carbon black, titanium oxide (amorphous or rutile and / or anamorphic type crystals), zinc oxide, mica titan, fish scale foil, bismuth oxychloride, boron nitride, Examples thereof include silk powder, natural pigments, and the like. These pigments and / or fillers are used alone or in combination of two or more.

When untreated pigments and / or fillers are used, especially when it is desired to incorporate them into make-up cosmetics, pigments and / or fillers with relatively large average particle sizes are selected. Preferably from 0.111 to 50/111 average particle size, more preferably from 0.1 m to 30 / m average particle size, even more preferably from 0.1 m to 20 / m average particle size. It has a particle diameter.

In the case of a pigment and / or filler having been subjected to a hydrophilic surface treatment, any treating agent may be used as long as it is conventionally used for imparting hydrophilicity to the pigment and / or filler. Although a powder can be used, a powder that has been subjected to a surface treatment with a treating agent such as a silica treatment, an alumina treatment, a silica-alumina treatment, or a titania treatment can also be used. In the present invention, in particular, resilient treatment is suitably selected, and the treatment method itself is well known in the art.

The hydrophilic pigment and / or filler contained in the oil-in-water emulsion according to the present invention preferably contains 0.1 to 30% by weight, more preferably 0.5 to 10% by weight in the emulsion. Included in quantity.

The pigment and / or filler contained in the oil-in-water emulsion according to the present invention is basically the above-described hydrophilic pigment and / or filler, but the pigment and / or filler of the oil-in-water emulsion according to the present invention. Maintain effects such as filler dispersibility and uniformity As long as it is within the range, a pigment and / or a filler for hydrophobic treatment may be contained. The amount of pigment and / or filler of this hydrophobic treatment that can be contained in the oil-in-water emulsion is preferably at most about 5% by weight, more preferably about 3% by weight.

As the surfactant used in the present invention, any surfactant can be used as long as it has been conventionally used for emulsification of this type of oil-in-water emulsion. However, its usage is kept low. Examples of the surfactant that can be used include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester., Polyoxyethylene glycerin fatty acid ester, and polyoxyethylene glycerin fatty acid ester. Nonionic surfactants such as oxyethylene hydrogenated castor oil and polyoxyethylene sorbitol fatty acid ester; Anionic surfactants such as sodium stearate and triethanolamine palmitate represented by fatty acid lithography Is mentioned. Particularly preferred surfactants include a combination of stearic acid and Arlacel 165FL (50% glyceryl stearate + 50% PEG-100 stearic acid) manufactured by Uniqema and Sesolanol.

The fatty phase of the oil-in-water emulsion according to the present invention means not only a liquid oil but also a phase of any non-aqueous substance or a mixture of non-aqueous substances including a solid fat or a semi-solid oil. The non-aqueous substance constituting the fatty phase, i.e., the oil, may be any of vegetable, mineral, animal and / or synthetic oils as long as it has been conventionally used in the preparation of an oil-in-water emulsion. May be. For example, apogado oil, olive oil, jojoba oil, oleic acid, isostearic acid, hexadecyl alcohol, oleyl alcohol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, myristate-2 Octyldodecyl, neopentylglycol di-2-ethylhexanoate, glycerol tri-2-ethylhexanoate, oleic acid-2-octyldodecyl, isopropyl myristate, glycerol triisostearate, 2-ethylhexane Acid diglyceride, di-paramethoxy carboxylic acid Glyceryl mono-2-ethylhexanoate dimethylpolysiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, liquid paraffin, squalene, squalane, glycine, lanolin, ceresin, micro Crystallin wax, carnavalo, candelilla wax and the like can be mentioned, and one kind or a mixture of two or more kinds can be used. Preferably, a combination of 5% by weight of cyclomethicone + 5% by weight of tri (force prill. Force pric acid) glycerin is used. In the present invention, the amount of fatty phase is preferably about 5 to 20% by weight, more preferably about 5% by weight, based on the total weight of the emulsion. It is preferable that the content be 15 to 15% by weight. If the amount of the fatty phase is too small, when used in cosmetics, the makeup finish is very easy to dry, pigments and / or fillers tend to be uneven, and a comfortable moist feeling cannot be obtained. Your skin will be dry. On the other hand, if the amount of the fatty phase is too large, the skin will not fit well, the oily feeling will be too heavy and the feeling will be heavy, and the stability itself will be adversely affected.

On the other hand, the aqueous phase preferably consists of water such as purified water, but in some cases, C _2-

It may also contain C6 lower monoalcohols and / or polyols, for example glycerol, butylene glycol, isoprene glycol or propylene glycol (0 to 15% by weight relative to the total weight of the emulsion). The aqueous phase is preferably about 35-95% by weight, more preferably about 40-80% by weight, based on the total weight of the emulsion.

Further, in the present invention, a water-swellable clay mineral is used as a thickening agent. However, as long as the effects of the present invention are not impaired, ordinary hydrophilic thickening agents such as carboxyvinyl polymer, acrylic copolymer, Acrylamide, polysaccharides, natural gums, etc. may be added. In some cases, it is also possible to add a lipophilic thickener to the fatty phase, such as a modified clay such as bentone, a fatty acid metal salt such as aluminum stearate, or the like. Examples thereof include hydrophobic silica, ethyl cellulose, and polyethylene.

The oil-in-water emulsion of the present invention is preferably used as a cosmetic or a skin external preparation. Used. That is, in one embodiment of the present invention, there is provided a cosmetic or external preparation for skin consisting of the oil-in-water emulsion or containing the oil-in-water emulsion.

The cosmetic may be of any use, but cosmetics for make-up, skin care, and hair care are particularly preferably provided. The makeup cosmetic may be a makeup of the skin of the body such as the face, lips, and eyes, or a makeup of the skin skeleton such as nails and hair. More specifically, it can take the form of a foundation, lip product, brusher, eye shadow, concealer, and the like. The cosmetic or external preparation for skin may contain additives such as ordinary active ingredients to be contained in cosmetics or external products for skin. Such additives include, in particular, organic solvents, softeners, antioxidants, antifree radical agents, opacifiers, stabilizers, emollients, defoamers, humectants, vitamins, fragrances, preservatives, metals Conventional sequestering agents selected from ion sequestering agents, polymers, basic or acidifying agents, dyes, self-tanning agents, and any other ingredients commonly used in the cosmetic and / or dermatological fields. Cosmetic and / or dermatological adjuvants. Each component is contained in an aqueous phase or a fatty phase depending on the compatibility or the like.

The type and / or amount of such optional ingredients may be selected by those skilled in the art with care not to adversely affect the beneficial properties inherent in the oil-in-water emulsions of the present invention. Things. Example

Hereinafter, the present invention will be described in more detail with reference to Examples, but it goes without saying that the present invention is not limited thereto. In the following notation,% indicates% by weight, unless otherwise specified. Example 1

In order to confirm the effect of the combination of the water-swellable clay mineral and the hydrophilic pigment and / or filler used in the oil-in-water emulsion according to the present invention, a water phase, a fatty phase and a Of a water-swellable clay mineral (Submica E from Wakkale) in water (hereinafter referred to as “synthetic mykadiel”). Oil-in-water emulsions of the present invention (Examples 1 and 2 of the present invention) prepared by mixing and dispersing treated pigments or hydrophilic surface-treated pigments, and replacing the pigments with hydrophobic surface-treated pigments (Comparative Example 1) was prepared, and the properties of the emulsion, the dispersibility of the pigment, and the stability were compared. For reference, a synthetic mica diel and a diel containing a surface-untreated pigment (Comparative Example 2), a synthetic mica diel and a diel containing a hydrophilic surface-treated pigment (Comparative Example 3), and a synthetic mica diel and a diel containing a hydrophobic surface-treated pigment (Comparative Example 2) Comparative Example 4), Further, Synthesis without Using Surfactant Oil-in-Water Emulsion Containing Mica Diel and Surface Untreated Pigment (Comparative Example 5), Synthetic Mica Diel without Using Surfactant and Hydrophobic Surface-treated Pigment An oil-in-water emulsion (Comparative Example 6) containing the same was prepared, and its properties and feel were similarly examined.

The stability was examined after storage at 45 ° C for 2 months.

The results of the above test are shown in the following table.

Corrected form (Rule 91) Example of the present invention Example of this 5th example Comparative example Comparative example Comparative example Comparative example Comparative example Comparative example Comparative example

1 2 1 2 3 4 5 6 Water phase

-Purified water 20% 20% 20%

-Preservatives small amount small amount small amount

Surfactant

-Glyceryl stearate / le 50% 0.3% 0.3% 0.3%

+ PEG-100 stearic acid 50%

(Note 1)

-Stearic acid 0.6% 0.6% 0.6%

-Setano 0.5% 0.5% 0.5%

Fatty phase

-Decamethylcyclopentane 5% 5% 5% 5% 5% Loxane

-Triglyceride (capryl caprin 5% 5% 5% 5% 5% acid)

Synthetic My Power Phase

-Water Total 100% Total 100% Total 100% Total 100% Total 100% Total 100% Total 100% Total 100%

-Natrium and magnesium 7% 7% 7% 10% 10% 10% 10% 10%

2)

Fluorosilicate

Untreated surface pigment

-Untreated iron oxide 1.42% 1.66% 1.42%

-术 Treatment-Acid-Hydrogen 5.58% 8.34%

Hydrophilic surface-treated pigment

-Silica treated iron oxide 1.42% 1 66%

-Non-strengthening treatment Ichidani Tita 5.58% 8. 34%

Aqueous surface treatment pigment

• C9-15 Fluoroalcohol 1.42% 1.66% 1.42% Phosphated iron oxide

• C9-15 phenolic mouth alcohol 5.58% 8.34% 5.58% Phosphated titanium dioxide

Properties / Touch uniformity, good uniformity, good Pigment is average-, average-, pigment is even pigment is good pigment is good feel good feel is dispersed. Dry, dry, dry, dry, dry

Stability Good Good Unstable Good Good Unstable Unstable Unstable

(Note 1) Arlacel 165FL (manufactured by UNIQEMA)

(Note 2) Submica E (Wackherr)

Corrected form (Rule 91) 13

(Note 1) Arlacel 165F (made by UNIQEMA)

(Note 2) Submica E (VVackherr) -14-Based on the results shown in the above table, the oil-in-water emulsion obtained by the combination of the hydrophilic pigment and the water-swellable clay mineral of the present invention is compared with the oil-in-water emulsion or giel of other combinations. As a result, it was found that the pigment was excellent in dispersibility and stability, usability such as feel, and matte feeling.

Example 2

[Foundation]

Completely dissolve aqueous phase A and (B + C) phase at 60 ° C. Add the (B + C) phase to the A phase under stirring with a turbine homogenizer, and emulsify. At room temperature, add the D phase in which SUBM I CAE has been swollen and dispersed uniformly in water. Further, the pigment E phase was added, and the final mixture was stirred uniformly. Off ^ϊ one, down =? V

A water phase

-Purified water 20%

-Preservative small amount

B surfactant

-Glyceryl stearate 50% + PEG-100 stearate 50%: 0.3%

Arlacel 165FL (manufactured by UNIQEMA)

-0.6% stearic acid

-0.5%

C fatty phase

-5% of decamethinolecyclopene siloxane

-Tori (force prill / force protic acid) dariseride 5%

D Synthetic My Power Phase

-Amount to make purified water 100%

-Fluorosilicate of sodium and magnesium: 7%

Submica E (Wackherr)

E Untreated surface pigment

-Yellow iron oxide 0.97%

-Black iron oxide 0.09%

-Bengala 0.11%

-Titanium oxide (pigment grade) 5. 83% 15-Emulsion with uniform properties and good-feel foundation]

Completely dissolve the aqueous phase A and (B + C) phase at 60 ° C. Add the (B + C) phase to the A phase under stirring with a turbine homogenizer, and emulsify. At room temperature, add SUBMI CA E to the water in advance by expanding and uniformly dispersing the SUBMI CA E in water. Further, the pigment E phase was added, and the final mixture was stirred uniformly.

A very light, non-greasy emulsion without an oily feeling was obtained. Stability is very good.

[Skin care cream or makeup base cream]

Completely dissolve the aqueous phase A and (B + C) phase at 60 ° C. Evening bottle type homogenizer -16-Add the (B + C) phase to the A phase under stirring, and emulsify. At room temperature, montmorillonite is swelled in water in advance, and the D phase that has been uniformly dispersed is added. Further, the pigment phase E and phase F were added, and the final mixture was stirred uniformly.

A very light, non-greasy cream with no oiliness was obtained. The stability is very good. It can be used as a foundation cream for foundations because it smoothes the skin surface. [Cream-like blush]

Dissolve the aqueous phase A and the (B + C) phase completely at 60 ° C. Add the (B + C) phase to the A phase and emulsify under agitating with a turbine homogenizer. After confirming the emulsification with a microscope, expand SUBMICAE in water at room temperature and disperse it uniformly. -17-Add D phase. Further, the pigment E phase was added, and the final mixture was stirred uniformly.

A very refreshing, non-greasy creamy blusher with no oiliness was obtained. Creamy aisha dough]

Completely dissolve the aqueous phase A and (B + C) phase at 60 ° C. Add the (B + C) phase to the A phase and emulsify the mixture with stirring in the evening bottle homogenizer. At room temperature, add SUBMI CA E to the water in advance by expanding and uniformly dispersing the SUBMI CA E in water. Further, the pigment E phase was added, and the final mixture was stirred uniformly. 18

A very light, non-greasy, creamy eyeshadow with no oiliness was obtained.

[Cleansing cream]

Completely dissolve the aqueous phase A and (B + C) phase at 60 ° C. Add the (B + C) phase to the A phase and emulsify the mixture with stirring in the evening bottle homogenizer. At room temperature, add SUBMI CA E to the water in advance by expanding and uniformly dispersing the SUBMI CA E in water. Further, the pigment E phase was added, and the final mixture was stirred uniformly. 19

Directions for use: Apply an appropriate amount to the skin, mix well with dirt and make-up, then wipe off or rinse off with water.

Easily spreads on the skin and blends well with makeup. After rinsing, the skin had a very light, non-greasy feel with no oiliness.

[Rinse face pack]

Completely dissolve aqueous phase A and (B + C) phase at 60 ° C. Add the (B + C) phase to the A phase under stirring with a turbine homogenizer, and emulsify. After confirming the emulsification with a microscope, add SUBMI CAE to the water in advance at room temperature. Further, phase E of pigment was added, and the final mixture was stirred uniformly. -20-

Directions for use: Spread an appropriate amount on skin, leave for 5 to 15 minutes, and then wipe off or rinse with water.

It has no oiliness and is easy to spread on the skin. After rinsing, the skin became moist, and had a refreshing feel without leaving any oily feeling.

Claims

-21-Claims

1. In an oil-in-water emulsion containing a fatty phase, an aqueous phase, and a surfactant, a water-swellable clay mineral is added together with a hydrophilic pigment and / or filler to reduce the amount of surfactant to 5% or less. An oil-in-water emulsion characterized in that:

2. The oil-in-water emulsion according to claim 1, wherein the amount of the surfactant is 1 to 3% by weight, preferably 0.1 to 2% by weight.

3. The oil-in-water emulsion according to claim 1, wherein the water-swellable clay mineral is a layered silicate mineral.

4. The layered silicate mineral is selected from the group consisting of montmorillonite, paiderite, nontronite, savonite, hectolite, sauconite, stevensite, synthetic smectite, and synthetic mylite. 4. The oil-in-water emulsion according to claim 3, wherein the oil-in-water emulsion is used.

5. The synthetic my power has the following analytic formula:

_{(N a 2 O) X (} M g O) y (S i O 2) z M g F 2

[Where X, y, and Z are numbers that satisfy the following relationship:

0 .1≤x≤ 0.5

1.5 ≤ y ≤ 2

3.5 ≤ z≤ 4]

5. The oil-in-water emulsion according to claim 4, wherein the oil-in-water type emulsification is represented by:

6. The water-swellable clay mineral is present in a concentration of 1 to 20% by weight, preferably 3 to 15% by weight, based on the total weight of the emulsion. - twenty two -

5. The oil-in-water emulsion according to 5.

7. The oil-in-water emulsion according to any one of claims 1 to 6, wherein the hydrophilic pigment and / or the filler is an untreated pigment and / or a filler.

8. The oil-in-water emulsion according to claim 7, wherein the untreated pigment and / or filler has an average particle size of 0.1 to 5 μm.

9. The oil-in-water emulsion according to any one of claims 1 to 6, wherein the hydrophilic pigment and / or filler is a hydrophilic surface-treated pigment and / or filler.

10. The oil-in-water emulsion according to claim 9, wherein the hydrophilic pigment and / or the filler is surface-treated with silica.

Claims 1 to 1 wherein the hydrophilic pigment and / or the filler are present in a concentration of 1 to 20% by weight, preferably 3 to 15% by weight, based on the total weight of the emulsion. 0 The oil-in-water emulsion according to any one of 0.

12. The water according to any one of claims 1 to 11, characterized in that the fatty phase accounts for 5 to 20% by weight, preferably 7 to 15% by weight, based on the total weight of the emulsion. Oil emulsion.

13. The method according to claim 1, wherein the aqueous phase comprises 35 to 95% by weight, preferably 40 to 80% by weight, based on the total weight of the emulsion. Oil-in-water emulsion. - twenty three -

14. A cosmetic comprising or containing the oil-in-water emulsion according to any one of claims 1 to 13.

15. The cosmetic according to claim 14, having a use selected from the group consisting of makeup and skin care.

16. An external skin preparation comprising the oil-in-water emulsion according to any one of claims 1 to 13, or containing the oil-in-water emulsion.

17. A method for preparing an oil-in-water emulsion containing a pigment and / or a filler while suppressing the amount of the surfactant used to 5% by weight or less, wherein the pigment and / or the filler is a hydrophilic pigment and / or A method comprising adding a water-swellable clay mineral as a filler, thereby improving the dispersibility of the pigment and / or filler and the stability of the emulsion.