KR100508978B1 - Water-in-Oil Type Emulsion Foundation Cosmetic Composition Comprising Stearoyl Inulin - Google Patents

Abstract

The present invention relates to a cosmetic composition, and more particularly, to a water-in-oil type emulsion foundation cosmetic composition comprising stearoyl inulin excellent in emulsification stability and excellent in usability, spreadability, adhesion and makeup persistence. The present invention provides an oil-in-water emulsion foundation cosmetic composition comprising an oil-based component comprising a silicone oil, and comprising stearoyl inulin as an active ingredient as an oil gelling agent of the silicone oil. The water-in-oil type emulsion foundation cosmetic composition of the present invention is excellent in emulsification stability and light usability, spreadability, adhesion and durability.

Description

Water-in-Oil Type Emulsion Foundation Cosmetic Composition Comprising Stearoyl Inulin}

The present invention relates to a cosmetic composition, and more particularly, to a water-in-oil type emulsion foundation cosmetic composition comprising stearoyl inulin excellent in emulsification stability and excellent in usability, spreadability, adhesion and makeup persistence.

In general, emulsified foundations are roughly divided into oil-in-water (O / W) and water-in-oil (W / O).

The oil-in-water emulsion foundation has the advantage of being lighter than the water-in-oil foundation, but has the disadvantages of water resistance and makeup persistence in the form of a water wound, and color discoloration by sebum. On the other hand, the oil-in-water type emulsion foundation is excellent in water resistance to sweat and oil resistance by sebum because the external wound is an oil phase, but a heavy feeling of use and a decrease in product stability during long-term storage are pointed out as the biggest disadvantages.

However, in recent years, the trend of preference of the foundation of the consumers is to change the color of the skin's preference and to adjust the color of the skin to make the skin brighter, to correct the texture to give luster and clarity, blemishes, freckles and wrinkles and pores. In addition to the function of concealing the effect of the sunscreen and moisturizing effect, as well as aspects of light use, after-use makeup and color persistence, and skin irritation in consideration of aspects such that all of these features tend to prefer products that are excellent . Therefore, there is a need in the art for developing a product having excellent emulsion stability and usability in a water-in-oil type emulsion foundation to reflect such consumer trends.

At present, the silicone heavy water type (W / S) An emulsifying foundation has been developed. However, the silicone water-in-oil emulsion foundation is a problem in terms of stability, such as the gelling agent of the general solid cosmetics can not gel the silicone oil and the compatibility with the general oil is poor, so that the contents are easily separated when changing after emulsification. Have

On the other hand, in order to solve the above problems by developing a silicone-based surfactant to improve the compatibility with the oil and silicone oil, such as dimethicone copolyol (dimethicone copolyol) or alkyl dimethicone copolyol (alkyl dimethicone copolyol) to some extent Although the stability of the emulsion foundation could be improved, the problem of not being able to maintain long-term stability without the use of an oil gelling agent remains and a solution is desired.

Therefore, in order to solve the problem of long-term stability of the said emulsification foundation, generally, the solution through the increasing effect of an oil phase is aimed at. For example, water-in-oil type, using dextrin fatty acid esters, organic modified clay minerals, metal soaps such as aluminum stearate, polyethylene powders, silicone gels having siloxane bonds as main chains, and / or mixtures thereof as oil gelling agents It is proposed to improve the stability of the emulsion foundation.

However, in the case of improving the stability of the water-in-oil emulsified foundation, these oil gelling agents also need attention because their characteristics vary depending on the type of the oil which is a trauma. For example, a silicone gel having a siloxane bond as a main chain has excellent compatibility and gelling ability with silicone oil, but a large amount of 10-30 wt% should be used in relation to the total weight. It has a disadvantage that cannot be emulsified with a homomixer, azimixer or paddle mixer. In addition, the solid wax and the like can be solved stability problems by using a large amount, but problems of usability, such as stickiness and heavy usability and compatibility with silicone oil will occur. In addition, metal soaps such as aluminum stearate are excellent in oil gelation ability, but have a high melting point of 100 ° C. or higher, and thus, formulations containing a large amount of silicone oil have difficulty in manufacturing and deteriorate the feeling of use such as thickening and stickiness of the makeup film. have. Dextrin fatty acid esters have excellent oil gelling ability in hydrocarbons and ester oils, but they are not compatible with volatile silicone oils and therefore are limited in use. Organic modified clay minerals have excellent oil gelling ability regardless of oil type. Oil gelling ability and stability is maintained only above a certain amount, and as the amount of use increases, the disadvantages such as heavy feeling of use and thick film are pointed out.

Therefore, there is a need in the art for developing a water-in-oil type emulsion foundation that has excellent emulsion stability and improves the light usability, spreadability, adhesion, and durability, which are recent consumer preference trends.

The present inventors have solved the above-mentioned problems and according to the needs of the art as a result of the effort to develop a water-in-oil emulsion foundation with excellent emulsification stability and improved light usability, spreadability, adhesion and durability, water-in-oil type including silicone oil The present invention was completed by finding that the water-in-oil type emulsion foundation cosmetic composition including stearoyl inulin as an oil gelling agent of the silicone oil in the emulsion foundation has excellent emulsification stability and very good feeling.

Accordingly, it is an object of the present invention to provide a water-in-oil emulsion foundation cosmetic composition excellent in emulsion stability and usability.

Other objects and advantages of the invention will be apparent from the following detailed description and claims.

According to an aspect of the present invention, the present invention provides an oil-in-water type emulsion foundation cosmetic composition comprising an oil-based component comprising a silicone oil, and comprising stearoyl inulin as an active ingredient as an oil gelling agent of the silicone oil. .

The emulsified foundation cosmetic composition of the present invention includes conventional component materials used in the emulsified foundation cosmetic composition, and includes, for example, three component materials of an aqueous phase component, an oil phase component and a pigment component.

First, the water-based component is preferably 40-70% by weight relative to the total weight of the cosmetic composition, and the mainly used materials include water, humectants, water soluble natural extracts, salts, preservatives, chelating agents and the like. The water-based component is different in the type and content of the component material according to the type of water-in-oil type or oil-in-water type, but is used in a similar ratio and content in almost all products, especially in the water-in-oil type emulsion foundation like the present invention. Does not significantly affect the usability and product stability.

Second, the oil-based component is preferably 20-60% by weight relative to the total weight of the cosmetic composition, and the materials used include oils, waxes and surfactants, oil gelling agents and the like. The oil-based material has a great influence on the usability and product stability.

Third, the pigment-based component is used to give the same color as the skin color and improve usability in the foundation composition, and preferably 10-20 wt% based on the total weight of the cosmetic composition by mainly mixing inorganic pigments and organic pigments. Is added.

In the water-in-oil emulsified foundation cosmetic composition of the present invention consisting of the three components described above, it is important to select an oil and an oil gelling agent in order to ensure excellent usability and durability, and stability of the formulation, which is the effect desired in the present invention.

The oil of the oil-based component, which is the first component in the emulsion foundation cosmetic composition of the present invention, preferably consists of silicone oil, ester oil and triglyceride oil or mixtures thereof. The ester oil and the triglyceride oil have advantages such as easy penetration into the skin and ease of dispersion of the pigment by the size of the molecular weight. However, increasing the amount of the oil may exhibit disadvantages such as dampness of use, oily spread, deterioration of makeup persistence by sebum, and skin irritation.

Thus, in the present invention, the oil is most preferably a silicone oil.

In order to solve the problem of silicone oil, it is characterized by using stearoyl inulin as an oil gelling agent.

The stearoyl inulin is a product produced by the condensation reaction of inulin and stearic acid chloride, which are storage polysaccharides of a polymer in which fructose is connected by β-2,1-linkage. It is characterized by excellent compatibility with the silicone oil and gelling ability contained in the foundation composition of the invention.

Unlike other oil gelling agents, the stearoyl inulin of the present invention has an excellent gelling ability with respect to silicone oil, and increases the viscosity of the silicone oil phase to increase emulsification stability, and enhances the effects such as adhesion and light feeling of the emulsion foundation. Acts as.

According to a preferred embodiment of the present invention, the content of the stearoyl inulin as an oil gelling agent is 0.5-5.0% by weight, more preferably 1.5-3.0% by weight relative to the total weight of the composition. If the content of the stearoyl inulin is less than 1.5% by weight, the adhesion and emulsification stability is reduced due to the gelling ability of the silicone oil, and when the content of the stearoyl inulin exceeds 3.0% by weight of the formulation There is a problem in that the viscosity is high and the spreadability is poor.

According to a preferred embodiment of the present invention, the foundation cosmetic composition of the present invention further comprises an organic modified clay mineral together with the stearoyl inulin as an oil gelling agent. When mixed with the stearoyl inulin and the organic modified clay mineral can be used to improve the heavy feeling and coating of the organic modified clay mineral.

According to a preferred embodiment of the present invention, the organic modified clay mineral is obtained by treating a water-swellable clay mineral with a quaternary ammonium salt type cationic surfactant, preferably quaternium-18 hectorite, stearalconium hectorite , Disteadimonium hectorite, dihydrogenated tallowbenzylmonium hectorite, quaternium-18 bentonite, stearalconium bentonite, quaternium-90 bentonite and the like. The content of the organic modified clay mineral is 0.3-3.0% by weight, more preferably 0.5-1.5% by weight relative to the total weight of the cosmetic composition.

When the content of the organic modified clay mineral is 1.5-3.0% by weight, the formulation is stable, but a heavy feeling of use and coating (inappropriate makeup finish) appears. In addition, when the content is less than 1.5% by weight, the emulsion is separated and stability is not secured, but a heavy feeling of use and a coating feeling do not appear. On the other hand, heavy feeling and coating when the content of the organic modified clay mineral is 0.5-1.5% by weight relative to the total weight of the cosmetic composition and the content of stearoyl inulin is 0.2-1.5% by weight relative to the total weight of the cosmetic composition It was possible to obtain a stable emulsion foundation composition on the formulation while improving the feeling. Therefore, when the content of the organic modified clay mineral is 0.5 to 1.5% by weight relative to the total weight of the cosmetic composition, the content of the stearoyl inulin is preferably 0.2 to 1.0% by weight relative to the total weight of the cosmetic composition. Do.

According to a preferred embodiment of the present invention, the content of the oil in the oil-based component in the emulsion foundation cosmetic composition of the present invention is preferably 20-45% by weight relative to the total weight of the cosmetic composition, wherein silicone oil is 60-100% by weight relative to the total weight of the oil. When the content of the oil is less than 20% by weight, the viscosity of the oil phase is increased and the ratio of the aqueous phase is increased, making it difficult to emulsify it with a general homo mixer, azi mixer or paddle mixer, and it is impossible to obtain a uniform emulsion, and the content of the oil is 45 In the case where the content is more than% by weight, the proportion of the oil phase is increased, so that the viscosity of the emulsion is low, and thus a stable emulsion cannot be obtained.

In addition, when the content of the silicone oil is less than 40% by weight relative to the total weight of the oil is not enough to obtain a light feeling and makeup persistence, there is a problem that a typical heavy feeling of oil appears. Since the silicone oil is incompatible with the general oil and the oil gelling agent, there is a problem in that the separation of the contents according to the change over time after emulsification is accelerated, so the content of the silicone oil is 60 wt% to the total weight of the oil. It is more preferable that it is 100 weight%.

According to a preferred embodiment of the present invention, the silicone oil is used in combination with a viscosity of 5-10 cst nonvolatile silicone having a linear structure and a volatile silicone oil having a high volatility and a light feeling, in an appropriate ratio depending on the purpose of use. In the case of non-volatile silicone oil, the silicone oil has a low irritation and forms a thin film after makeup to prevent the collapse of makeup by sweat or sebum, thereby increasing the durability and providing a soft feeling of use. In addition, since the volatile silicone oil is volatilized after makeup even if a large amount is used, it does not feel the heavy texture of the oil, thereby exhibiting a light feeling of use and improving makeup persistence.

According to a preferred embodiment of the present invention, the content of the non-volatile silicone oil is 5% to 20% by weight based on the total weight of the silicone oil, the content of the volatile silicone oil is 80 to the total weight of the silicone oil % By weight to 95% by weight. When the content of the nonvolatile oil is less than 5% by weight, there is a problem in spreading and makeup persistence, and when the content of the nonvolatile oil content is more than 20% by weight, the adhesion of the skin is lowered and light and neat usability are not obtained. There is a problem. In addition, when the content of the volatile oil is less than 80% by weight, there is a problem that a light and fresh makeup effect cannot be obtained, and when the content of the volatile oil component exceeds 95% by weight, there is a problem in the persistence of makeup.

The water-in-oil type emulsifier in the emulsified foundation cosmetic composition of the present invention may be a silicone-based emulsifier and a polyglyceryl-based emulsifier, and these may be used alone or in combination. The emulsifier is preferably HLB 3.0-6.0.

The silicone-based emulsifiers include dimethicone copolyols, lauroyl dimethicone copolyols and cetyl dimethicone copolyols, and the like, and the polyglyceryl emulsifiers are polyglyceryl-6-polyricinoleate, polyglyceryl-10 penta. Hydroxystearate and polyglyceryl-2-triisostearate, and the like, but are not limited thereto. The emulsifier may be used by mixing two or more kinds of the above components. The content of the emulsifier is preferably 0.5-5.0% by weight relative to the total weight of the cosmetic composition.

In addition, the pigment-based component, which is the third component in the emulsion foundation cosmetic composition of the present invention, is a component that has an important effect on usability such as makeup sustainability and adhesion, and in the present invention, preferably, an alkyl silane and dimethicone surface-treated pigment. Is used.

The water-in-oil type emulsion foundation cosmetic composition according to the present invention may have a conventional formulation, for example, may be formulated as a cream foundation, liquid foundation, makeup base, emulsified stick foundation and the like. In particular, the similarity of the formulation is not limited to makeup products, but may also be formulated as skin care, sunscreen, sun lotion, and the like.

The components included in the cosmetic composition of the present invention include components commonly used in cosmetic compositions in addition to stearoyl as an active ingredient, and if necessary, the components used in ordinary cosmetics such as ultraviolet absorbers, antioxidants, whitening agents, etc. Can be added.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, and the scope of the present invention is not limited by these examples in accordance with the gist of the present invention to those skilled in the art. Will be self-evident.

Example

Example 1 Preparation of Water-in-oil Emulsion Foundation Cosmetic Composition

The water-in-oil emulsified foundation cosmetic composition of Preparation Examples 1 to 3 and the composition of Comparative Example were prepared in the following manner: (a) Components 1 to 5 were heated to 50-55 ° C. to dissolve uniformly. To make; (b) components 6 to 8 were uniformly mixed and warmed to 65 ° C., and then component 10 was uniformly dissolved therein and components 9 and 11 were sufficiently dispersed; (c) the above (b) was added to (a), mixed uniformly, and then ingredients 11 to 12 were added and uniformly dispersed in a homomixer; And (d) components 13 to 17 were heated to 50-55 ° C. to be uniformly dissolved, and then added to (c) to emulsify with a homomixer. Component 18 was added thereto and cooled to 30 ° C. in a water-in-oil type emulsion foundation. A cosmetic composition was prepared.

Here, the stearoyl inulin was used as Rheopearl ISK (trade name) from Chiba Flour Milling (Japan).

In the present embodiment, Preparation Example 1 is a foundation cosmetic composition comprising stearoyl inulin alone, Preparation Example 2 is stearoyl inulin and other components (hexyllaurate, isononylisononanoate and octylmethoxy Foundation cosmetic composition, Preparation Example 3, which further comprises cinnamate, etc., Preparation Example 3 is a foundation cosmetic composition mixed with stearoyl inulin and organic modified clay mineral, Comparative Example does not contain stearoyl inulin only organic modified clay mineral Foundation cosmetic composition containing.

ingredient Preparation Example 1 Preparation Example 2 Preparation Example 3 Comparative example One Hexyllaurate - 2.5 2.5 2.5 2 Isononylisononanoate - 2.5 2.5 2.5 3 Octylmethoxy cinnamate - 3.5 3.5 3.5 4 Polyglyceryl-6 Polyricinoleate 0.4 0.4 0.4 0.4 5 Cetyldimethicone copolyol 2.0 2.0 2.0 2.0 6 Pyromethicone 23.5 15.0 15.0 15.0 7 Dimethicone (6cst) 3.0 3.0 3.0 3.0 8 Cyclomethicone / Dimethicone Crosspolymer 3.0 3.0 3.0 3.0 9 Organic modified clay minerals - - 0.8 2.0 10 Stearoyl inulin 2.5 2.5 0.5 - 11 Colorant ^* 13.0 13.0 13.0 13.0 12 Polymethylmethacrylate 3.5 3.5 3.5 3.5 13 Purified water Remaining amount Remaining amount Remaining amount Remaining amount 14 Butylene Glycol 5.0 5.0 5.0 5.0 15 Sodium chloride 1.0 1.0 1.0 1.0 16 Disodium ID 0.1 0.1 0.1 0.1 17 antiseptic a very small amount a very small amount a very small amount a very small amount 18 incense a very small amount a very small amount a very small amount a very small amount ^* The colorant is a mixture of 70% by weight of titanium dioxide (alkylsilane treatment), 20% by weight of iron oxide (alkylsilane treatment) and 10.0% by weight of talc (dimethicone treatment), followed by pulverizing twice with an atomizer.

In Table 1, the difference between the composition of Preparation Example 1 and Preparation Example 2 is that in the case of Preparation Example 1, the oil phase is composed only of silicone oil, Preparation Example 2 is butylmethoxydibenzoylmethane, bis- In order to improve the solubility of powdered UVA organic blockers such as ethylhexyloxyphenol methoxyphenyltriazine, ester-based oils are used in combination.

Example 2: Evaluation of Emulsification Stability

The storage stability over time of the foundation cosmetic composition of Preparation Examples 1 to 3 and Comparative Example prepared in Example 1 was investigated. First, 40 g of each composition was placed in a transparent container at a high temperature (45 ° C.) thermostat and cycle test (cycle: once daily at -4 to 40 ° C., 6 hours at -4 ° C. and 6 hours at 40 ° C.). After storage and storage for the period shown in Table 2, the storage stability over time was evaluated. The results of the experiment are shown in Table 2 below.

Storage condition term Preparation Example 1 Preparation Example 2 Preparation Example 3 Comparative example High temperature (45 ℃) 7 days 4 4 4 4 1 month 3 4 4 3 3 months 3 3 3 2 Cycle test 7 days 4 4 4 4 1 month 3 4 4 3 3 months 3 3 3 2 4: Very stable 3: Stable 2: Slightly unstable 1: Partially isolated 0: Fully isolated

As shown in Table 2, the foundation cosmetic composition of Preparation Examples 1 to 3 of the present invention containing stearoyl inulin alone and / or organic modified clay minerals than the composition of the comparative example containing only organic modified clay minerals Was high. Therefore, it can be seen that the water-in-oil type emulsion foundation cosmetic composition containing the stearoyl inulin of the present invention is excellent in emulsion stability.

Example 3: Evaluation of Usability

The usability of the foundation cosmetic composition of Preparation Examples 1 to 3 and Comparative Example prepared in Example 1 was evaluated. First, the foundation cosmetic composition of Preparation Examples 1 to 3 and Comparative Examples were used for 30 women 20-40 years of age for 30 days and then compared the quality of the spread, adhesion, persistence, lightness and makeup finish. The results of this experiment are shown in Table 3 below.

division Preparation Example 1 Preparation Example 2 Preparation Example 3 Comparative example Spreadability 4.3 4.4 4.3 4.0 Tightness 4.3 4.0 4.0 3.7 Persistence 4.2 4.0 4.0 3.9 Lightness 4.3 4.2 4.1 3.6 A sense of makeup 4.0 3.9 3.9 3.8 5: Very Good 4: Good 3: Fair 2: Bad 1: Very Bad

As shown in Table 3, the foundation cosmetic composition of Preparation Examples 1 to 3 showed much better feeling than the composition of the comparative example in all evaluation items such as spreadability, adhesion, durability, lightness and makeup finish. In particular, in the case of the foundation cosmetic composition mixed with stearoyl inulin and organic modified clay mineral, the stearoyl inulin improved the heavy feeling of use and thick cosmetic finish of the organic modified clay mineral. Therefore, it can be seen that the water-in-oil type emulsion foundation cosmetic composition containing the stearoyl inulin of the present invention has a very good feeling of use of the emulsion foundation.

As described in detail above, the present invention provides an oil-in-water type emulsion foundation cosmetic composition comprising an oil-based component comprising a silicone oil, and comprising stearoyl inulin as an active ingredient as an oil gelling agent of the silicone oil. The water-in-oil type emulsion foundation cosmetic composition of the present invention is excellent in emulsification stability and light usability, spreadability, adhesion and durability.

Claims (17)

A water-in-oil type emulsion foundation cosmetic composition comprising an oil-based component comprising a silicone oil, wherein the oil gelling agent of the silicone oil is comprised of 0.5-5.0 wt% of stearoyl inulin relative to the total weight of the composition. Water-in-oil type emulsion foundation cosmetic composition. The water-in-oil type emulsion foundation cosmetic composition according to claim 1, wherein the stearoyl inulin as the oil gelling agent has an effect of improving the emulsification stability by improving gelation ability and viscosity of the silicone oil. delete In a water-in-oil type emulsion foundation cosmetic composition comprising an oil-based component comprising a silicone oil, the oil gelling agent of the silicone oil is 0.2-1.5% by weight of stearoyl inulin and 0.3-3.0% by weight based on the total weight of the composition. A water-in-oil type emulsion foundation cosmetic composition comprising an organic modified clay mineral. The method of claim 4, wherein the organic modified clay mineral is quaternium-18 hectorite, stearalconium hectorite, disteadimonium hectorite, dihydrogenated tallowbenzylmonium hectorite, quaternium-18 bentonite, A water-in-oil type emulsion foundation cosmetic composition, characterized in that it is selected from the group consisting of stearalconium bentonite, quaternium-90 bentonite and combinations thereof. delete The water-in-oil emulsified foundation cosmetic composition according to claim 4, wherein the content of the organic modified clay mineral is 0.5-1.5 wt% based on the total weight of the composition. delete The water-in-oil type emulsion according to claim 1 or 4, wherein the cosmetic composition comprises 40-70% by weight of an aqueous phase component, 20-60% by weight of an oil phase component and 10-20% by weight of a pigment-based component. Foundation cosmetic composition. The water-in-oil type emulsion foundation cosmetic composition according to claim 9, wherein the oil-based component comprises an oil, a wax, a surfactant, and an oil gelling agent. The water-in-oil emulsion foundation cosmetic composition according to claim 10, wherein the oil in the oil-based component comprises at least one oil selected from the group consisting of silicone oil, ester oil, triglyceride oil, and mixtures thereof. . 11. The water-in-oil type emulsion foundation cosmetic composition according to claim 10, wherein the oil content is 20-45 wt% based on the total weight of the composition. The water-in-oil type emulsion foundation cosmetic composition according to claim 10, wherein the content of the silicone oil is 60-100% by weight based on the total weight of the oil. 11. The method of claim 10, wherein the silicone oil comprises 5% to 20% by weight of the total weight of the oil and nonvolatile silicone oil and 80% to 95% by weight of the total weight of the oil A water-in-oil type emulsion foundation cosmetic composition, characterized in that. 5. The polyglyceryl-6-polyricinoleate of claim 1 or 4 wherein said composition is a silicone-based emulsifier selected from the group consisting of dimethicone copolyols, lauroyl dimethicone copolyols and cetyldimethicone copolyols. , An emulsifier composed of one or more components of a polyglyceryl-based emulsifier selected from the group consisting of polyglyceryl-10-pentahydroxystearate and polyglyceryl-2-triisostearate, wherein the emulsifier A water-in-oil type emulsion foundation cosmetic composition, characterized in that 0.5 to 5.0% by weight based on the weight. delete The water-in-oil type emulsion according to claim 1 or 4, wherein the cosmetic composition has a formulation selected from the group consisting of a cream foundation, a liquid foundation, a makeup base, a stick emulsion foundation, a sunscreen cream and a sunscreen lotion. Foundation cosmetic composition.