KR20080105569A - Water-in-oil emulsion type makeup cosmetic composition comprising the tribehenin as oil gelling agent - Google Patents

Abstract

A water in oil type emulsion make-up cosmetic composition is provided to improve the emulsion stability at a high temperature and to enhance adhesion and maintenance. A water in oil type emulsion make-up cosmetic composition comprises 40-70 wt% of an aqueous component; 20-60 wt% of an oil phase component which comprises a silicone oil as an oil, tribehenin as an gelling agent of the oil, and an emulsifier; and 5-20 wt% of a pigment component.

Description

Water-in-Oil Emulsion Type Makeup Cosmetic Composition Comprising the Tribehenin as Oil Gelling Agent}

The present invention relates to a water-in-oil type emulsion cosmetic composition, and more particularly, to a water-in-oil type emulsion makeup cosmetic composition comprising tribehenin excellent in high temperature emulsion stability and excellent in usability, spreadability, adhesion and makeup persistence.

Generally, oil-in-water makeup (O / W) and water-in-oil type (W / O) are representative.

Oil-in-water oil-based makeup cosmetics have a light and moist feeling, but since the external wound is water-resistant, the water resistance and makeup persistence are inferior, and color discoloration by sebum is disadvantageous. On the other hand, the water-in-oil type emulsion makeup cosmetics are very excellent in oil resistance by sebum and water resistance by sweat since the external wound is an oil. However, due to stickiness, oily feeling, etc., the skin burden is imparted, and the application and spreading properties are deteriorated.

In order to solve the disadvantages of oil-in-water emulsion makeup cosmetics, such as oiliness, stickiness and heavy usability, silicone water-in-oil type (W / S) emulsion makeup, which is a formulation using silicone oil having light spreadability, water repellency, and malleability as main oil components The development of cosmetic compositions is being actively made. However, the silicone water-in-oil emulsified makeup cosmetic composition is difficult to gel the silicone oil as a gelling agent of a general solid cosmetics, there is a problem that the contents are easily separated with the change over time after emulsification because the compatibility with the general oil is poor.

On the other hand, in order to solve the problem, the silicone water-based type to some extent by the development of silicone-based surfactants with high compatibility with oils and silicone oils such as dimethicone copolyol or alkyl dimethicone copolyol Although it was possible to improve the stability of the oil-based makeup cosmetics, there was still a problem that it is difficult to maintain long-term stability alone.

Therefore, in order to solve the long-term stability problem of the above-mentioned emulsified makeup cosmetics, a method of imparting an oily increasing effect is generally applied. For example, water-in-oil type using an oil gelling agent such as dextrin fatty acid ester, organomodified clay mineral, metal soap such as aluminum stearate, polyethylene powder, silicone gel with silonic acid bond as main chain and solid wax It is proposed to improve the stability of an oil cosmetic makeup cosmetic. However, these oil gelling agents have limitations in application due to their low compatibility with silicone oil, stickiness in use, heavy feeling, and the like.

Korean Patent No. 508978, which is a patent of the present inventors, discloses stearoyl inulin having excellent silicone gelation ability, which is distinguished from conventional oil gelling agents, to improve the usability and long-term stability of the foundation, which is a water-in-oil emulsion makeup cosmetic using silicone oil. The invention used was disclosed. However, the cosmetics disclosed in this patent impart light and soft excellent usability in water-in-oil type and silicone-in-water type emulsification foundation, but are expensive raw materials and have a limitation in that only the gelling ability of cyclic volatile silicone oil is excellent. Have.

Therefore, there is a need in the art for the development of a water-in-oil emulsified makeup cosmetic with excellent usability, which is more excellent in emulsion stability and has improved spreadability, adhesion and durability.

The present inventors have made diligent efforts to solve the above problems, and as a result, the oil-in-oil emulsified makeup cosmetic composition contains a large amount of silicone oil in the oil-in-water emulsion makeup cosmetic composition while containing tribehenin as a gelling agent of the oil-based The present invention was completed by finding that the aqueous emulsion makeup cosmetic composition was very excellent in terms of use with excellent emulsion stability.

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

In order to achieve the above object, the present invention is a water-in-oil emulsion cosmetic composition comprising a water-based component, an oil-based component and a pigment-based component, wherein the oil-based component is (a) silicone oil as an oil component, (b) It provides a water-in-oil type emulsion makeup cosmetic composition comprising tribehenin (c) emulsifiers as a gelling agent of the oil component.

Hereinafter, the present invention will be described in detail.

The water-in-oil emulsified makeup cosmetic composition of the present invention contains (1) an oil phase component, (2) an aqueous phase component, and (3) a pigment component as main components as a component material used in a conventional emulsion makeup cosmetic composition.

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

Secondly, the water-based component is preferably included at 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 of the water-in-oil emulsified makeup cosmetics such as the present invention does not significantly affect the feeling of use and product stability by the water-based component material.

Third, the pigment-based component is used for skin color correction and usability improvement in an emulsified makeup cosmetic composition, and preferably 5-20% by weight is added to the total weight of the cosmetic composition by mainly mixing an inorganic pigment and an organic pigment.

In the water-in-oil emulsified makeup 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 to ensure excellent usability and durability and stability of the formulation.

First, among the oil-based components, preferred oils for use in the cosmetic composition of the present invention consist 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 used may exhibit disadvantages such as a sensation of wetness, decreased spreadability and skin irritation, which are typical properties of the oil. On the other hand, silicone oil has the advantages of excellent lightness and spreading properties and excellent skin safety, but has a problem that the skin adhesion is poor and the moisturizing effect is not good.

Therefore, the oil in the present invention is most preferably in the form of a mixture in which silicone oil is mainly used as the oil phase and ester oil or triglyceride oil is added at a low ratio.

According to a preferred embodiment of the present invention, the content of the oil in the oil-based component in the emulsion makeup cosmetic composition of the present invention is preferably 20-45% by weight relative to the total weight of the cosmetic composition, wherein the silicone oil is 50-80% by weight relative to the total weight of the oil. When the content of the oil is less than 20% by weight, it is difficult to emulsify it with a general homomixer, azimixer or paddle mixer due to the increase in the viscosity of the oil phase and the height of the water phase, and a uniform emulsion cannot be obtained. If it exceeds 45% by weight, the viscosity of the emulsion is lowered at a higher oil phase ratio, and thus there is a problem that a stable emulsion cannot be obtained.

In addition, when the content of the silicone oil is less than 50% 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. When the content of the silicone oil is 80% by weight or more, there is a problem that the skin adhesion is degraded and the moisture is reduced, so the content of the silicone oil is more preferably 50% by weight to 80% by weight relative to the total weight of the oil. .

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. The non-volatile silicone oil is less irritating and forms a thin film after makeup to prevent the collapse of makeup by sweat or sebum to increase the durability, there is an advantage that can give a soft feeling. 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 Wt% to 95 wt%. 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, deterioration of adhesion of the skin 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.

Next, the water-in-oil type emulsion cosmetic composition of the present invention is characterized by using tribehenin as an oil gelling agent in order to increase the compatibility of the silicone oil of the present invention with other oil-based oil components. .

Tribehenin of the present invention is a substance in which three behenic acids are combined with glycerin in the form of an ester, and neutral nonionic waxes dissolved in mineral oils, ester oils and vegetable oils. to be.

Unlike other oil gelling agents, tribehenin of the present invention has excellent gelling ability not only for general oil components but also for cyclic silicone oils, and improves emulsification stability and emulsification through increasing viscosity of oil phase including silicone oil. Acts as an active ingredient that enhances the adhesion and water resistance effect of the makeup cosmetic composition.

According to a preferred embodiment of the present invention, the content of tribehenin as an oil gelling agent is 0.5-4.0% by weight, more preferably 1.0-2.5% by weight relative to the total weight of the cosmetic composition. When the content of tribehenin is less than 1.0 wt%, the adhesion and emulsification stability may be reduced due to the gelling ability of the oil phase being reduced, and when the content of the tribehenin exceeds 2.5 wt%, the viscosity of the formulation is increased and spreadability is increased. There is a falling problem.

According to a preferred embodiment of the present invention, the makeup cosmetic composition of the present invention further comprises an organic modified clay mineral together with tribehenin as an oil gelling agent. When used in combination with the tribehenin and organic modified clay minerals, the synergistic effect can improve the stability even if less than the amount used when applying each material alone, heavy feeling and coating of the organic modified clay minerals I can improve a feeling. This can be said to be the same as the improvement that occurs when the stearoyl inulin is mixed with organic modified clay mineral as an oil gelling agent in a water-in-oil type emulsion foundation, as shown in Korean Patent No. 508978.

According to a preferred embodiment of the present invention, the organic modified clay mineral is obtained by treating the 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 0.2-2.0% by weight, more preferably 0.5-1.0% by weight based on the total weight of the cosmetic composition.

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

The silicone-based emulsifiers include dimethicone copolyol, lauroyl dimethicone copolyol, cetyl dimethicone copolyol, and the like, and the polyglyceryl emulsifiers include polyglyceryl-6 polyricinoleate, polyglyceryl-10 pentahydroxy Stearates and polyglyceryl-2 triisostearate and the like, but is not limited thereto, the emulsifiers may be used by mixing two or more of the components. The content of the emulsifier is preferably 0.5-5.0% by weight, most preferably 1.5-3.5% by weight relative to the total weight of the cosmetic composition.

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

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

The components included in the cosmetic composition of the present invention include components conventionally used in cosmetic compositions in addition to tribehenin as an active ingredient, and suitable components commonly used in cosmetics such as ultraviolet absorbers, antioxidants, and whitening agents, as necessary. It can be added in the range.

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  One : Water-in-oil type  Oil painting makeup Cosmetics  Preparation of the composition

To prepare a water-in-oil type emulsion makeup cosmetic composition (in this embodiment applied to the makeup base) of the Preparation Examples 1 to 3 with the composition as shown in Table 1 below;

(a) Components 1-3 were heated to 55-60 degreeC, and were melt | dissolved uniformly.

(b) Components 4 to 6 were uniformly mixed and warmed to 65 ° C., and then components 8 or 9 were added to dissolve uniformly, and components 7 were uniformly dispersed.

(c) The above (b) was put in the above (a), mixed uniformly, and then the ingredients 10 to 11 were added and uniformly dispersed in a homomixer.

(d) The components 12 to 16 were heated to 55-60 ° C. to be uniformly dissolved, and then added to (c) to emulsify it with a homomixer. The component 17 was added thereto and cooled to 30 ° C. in a water-in-oil emulsion makeup cosmetic. The composition was prepared.

In the present embodiment, Preparation Example 1 is a makeup cosmetic composition comprising tribehenin alone as an oil gelling agent, Preparation Example 2 is a makeup cosmetic composition mixed with tribehenin and organic modified clay minerals as an oil gelling agent, Comparative Example 1 is a makeup cosmetic composition comprising only organic modified clay minerals without containing tribehenin as an oil gelling agent, Comparative Example 2 is a stearoyl without containing tribehenin and organic modified clay minerals as an oil gelling agent It is a makeup cosmetic composition containing only inulin.

Quaternium-18 hectorite was used as the organic modified clay mineral.

ingredient Preparation Example 1 Preparation Example 2 Comparative Example 1 Comparative Example 2 One NeopentylglycolDethylhexanoate 5.0 5.0 5.0 5.0 2 Polyglyceryl-6 Polyricinoleate 0.3 0.3 0.3 0.3 3 Cetyl Dimethicone Copolyol 2.0 2.0 2.0 2.0 4 Cyclomethicone 20.0 20.0 20.0 20.0 5 Dimethicone (6cst) 2.0 2.0 2.0 2.0 6 Cyclomethicone / Dimethicone Crosspolymer 4.0 4.0 4.0 4.0 7 Quaternium-18 hectorite - 0.8 1.5 - 8 Tribehenin 1.5 0.5 - - 9 Stearoyl inulin - - - 1.5 10 Colorant 7.0 7.0 7.0 7.0 11 Polymethylmethacrylate 2.0 2.0 2.0 2.0 12 Purified water Remaining amount Remaining amount Remaining amount Remaining amount 13 Dipropylene glycol 5.0 5.0 5.0 5.0 14 Sodium chloride 1.0 1.0 1.0 1.0 15 Disodium ID 0.1 0.1 0.1 0.1 16 antiseptic a very small amount a very small amount a very small amount a very small amount 17 incense a very small amount a very small amount a very small amount a very small amount

Among these components, the colorant is a mixture of 65% by weight of titanium dioxide (alkyl silane treatment), 7.0% by weight of chromium oxide green and 28% by weight of talc (alkyl silane treatment), followed by crushing twice with an atomizer.

Example 2 Evaluation of Emulsification Stability

The storage stability over time of the makeup cosmetic compositions of Preparation Examples 1 and 2 and Comparative Examples 1 and 2 prepared in Example 1 were investigated. First, 40 g of each composition was put in a transparent container at a high temperature (45, 50 ° C) constant temperature room and cycle test (cycle: once a day at -4 to 40 ° C, 6 hours at -4 ° C and 6 hours at 40 ° C) Preservation stability over time after storage for the period shown in Table 2 was evaluated. The results of the experiment are shown in Table 2 below.

Storage condition term Preparation Example 1 Preparation Example 2 Comparative Example 1 Comparative Example 2 High temperature 1 (50 ℃) 7 days 4 4 4 4 1 month 4 4 3 3 3 months 4 4 3 2 High temperature 2 (45 ℃) 7 days 4 4 4 4 1 month 4 4 4 3 3 months 4 4 3 2 Cycle test 7 days 4 4 4 4 1 month 4 4 4 3 3 months 4 4 3 3

<Storage stability evaluation value>

4: very stable 3: stable 2: slightly unstable

1: Partially detached 0: Fully detached

As shown in Table 2, Preparation Cosmetic Composition of Preparation Example 1 containing tribehenin alone and a mixture of Tribehenin and organic modified clay minerals Comparative Example containing only organic modified clay minerals Emulsion stability was higher than the makeup cosmetic composition of Comparative Example 2 containing only 1 or stearoyl inulin. Therefore, it can be seen that the water-in-oil type emulsion makeup cosmetic composition containing tribehenin of the present invention has excellent emulsion stability.

Example  3: Of usability  evaluation

The usability of the makeup cosmetic compositions of Preparation Examples 1-2 and Comparative Examples 1-2 prepared in Example 1 was evaluated. First, the make-up cosmetic compositions of Preparation Examples 1 to 2 and Comparative Examples 1 to 2 were used for 30 women aged 20-40 years for 30 days, and then the quality of spreading, adhesion, sustainability, lightness, and makeup finish Was compared. The results of this experiment are shown in Table 3 below.

division Preparation Example 1 Preparation Example 2 Comparative Example 1 Comparative Example 2 Spreadability 4.1 4.1 3.8 4.3 Tightness 4.3 4.5 4.5 4.2 Persistence 4.5 4.5 4.0 4.1 Lightness 4.0 4.0 3.6 4.2 Makeup Finish 3.9 3.9 3.5 3.9

<Evaluation Index>

5; Very good 4; Good 3; Usually 2; Bad 1; very bad

As shown in Table 3, it can be seen that the makeup cosmetic composition of Preparation Examples 1 to 2 is similar or superior to the compositions of Comparative Examples 1 to 2 in evaluation items such as spreadability, adhesion, durability, lightness, and makeup finish. In particular, it can be seen that the makeup cosmetic composition containing only tribehenin is superior to the makeup cosmetic composition containing only stearoyl inulin and has good sustainability. In addition, in the case of the makeup cosmetic composition mixed with tribehenin and organic modified clay mineral, the tribehenin 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 emulsified makeup cosmetic composition containing tribehenin of the present invention has a better feeling than when using a general oil gelling agent.

As described in detail above, the present invention provides a water-in-oil emulsion cosmetic composition comprising a silicone oil as a main component as an oil component, and tribehenin as an active ingredient as a gelling agent of the oil component. The water-in-oil emulsified makeup cosmetic composition of the present invention has excellent high temperature emulsification stability for various oil-based components, and has excellent usability, adhesion and durability.

Claims (6)

In a water-in-oil emulsified makeup cosmetic composition comprising an aqueous phase component, an oil phase component and a pigment component, the oil phase component is (a) silicone oil as an oil, (b) tribehenin as a gelling agent of the oil. ) And (c) an oil-in-water type emulsion makeup cosmetic composition comprising an emulsifier. According to claim 1, wherein the cosmetic composition is characterized in that it comprises 40-70% by weight of the water-based component, 20-60% by weight of the oil-based component and 5-20% by weight of the pigment-based component relative to the total weight of the cosmetic composition Water-in-oil type emulsion makeup cosmetic composition. The oil-based component of claim 1, wherein (a) oil is 20-45% by weight relative to the total weight of the cosmetic composition, (b) oil gelling agent is 0.5-4.0% by weight relative to the total weight of the cosmetic composition, (c) Emulsifier is contained in 0.5 to 5.0% by weight relative to the total weight of the cosmetic composition, the oil-in-water type emulsion makeup cosmetic composition, characterized in that the content of the silicone oil in the oil content of 50-80% by weight of the total oil content. The water-in-oil emulsified makeup cosmetic composition according to claim 1, wherein the content of tribehenin, which is the oil component gelling agent, is 0.5-4.0 wt% based on the total weight of the cosmetic composition. The water-in-oil emulsified makeup cosmetic composition according to claim 1, wherein the cosmetic composition further comprises an organic modified clay mineral as an oil component gelling agent. The water-in-oil type emulsion makeup cosmetic composition of claim 1, 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.