Transparent cosmetic composition comprising an aqueous phase and an oily phase

Abstract

The present invention provides a cosmetic composition comprising a water phase portion and an oil phase portion, wherein the water phase portion and the oil phase portion are mixed and the cosmetic composition is a transparent preparation.SOLUTION: [Advantageous Effects] The cosmetic composition of the present invention is prepared as a transparent preparation in which an aqueous phase and an oil phase form a bicontinuous phase without using an emulsifier, and does not cause whitening due to a UV blocking agent when applied to the skin.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a clear cosmetic composition comprising an aqueous phase and an oil phase. [Background technology]

[0002] Ultraviolet rays emitted from sunlight are the main cause of skin erythema, edema, freckles, and even skin cancer. For this reason, much research has been conducted in recent years into various skin diseases caused by ultraviolet rays.

[0003] Ultraviolet rays are generally classified as UV-A, UV-B, and UV-C according to their wavelengths: UV-A has wavelengths between 320 and 400 nm, UV-B has wavelengths between 280 and 320 nm, and UV-C has wavelengths between 200 and 280 nm. UV-A penetrates the dermis of the skin and is known to cause skin cancer, as well as cause skin aging and irritation by promoting wrinkles and melanin production. UV-B penetrates the epidermis and causes erythema, freckles, and edema. UV-C disappears when it passes through the ozone layer without reaching the earth's surface.

[0004] As mentioned above, consumers are increasingly interested in UV protection products to prevent and improve skin diseases related to sun exposure.

[0005] Meanwhile, in recent years, the UV-blocking cosmetics market has seen an increase in consumer demand for natural cosmetics that also improve skin texture, leading to a growing need for transparent UV-blocking cosmetics that do not leave a white cast, can be used by anyone, and are suitable for a variety of races. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent Registration No. 2530813 Summary of the Invention [Problem to be solved by the invention]

[0007] The present inventors have been developing a cosmetic composition that provides UV protection while also providing a composition that can create a translucent skin appearance without the white cast phenomenon, and have produced a transparent cosmetic composition in which the oil phase and the water phase are mixed by adjusting the viscosity of the water phase and the oil phase.

[0008] Therefore, in one aspect, the present invention aims to provide a cosmetic composition that includes an aqueous phase and an oily phase, the aqueous phase and the oily phase being mixed together, and that is a transparent preparation. [Means for solving the problem]

[0009] In one aspect, the present invention provides a cosmetic composition that includes an aqueous phase and an oily phase, the aqueous phase and the oily phase being mixed together and being a transparent preparation.

[0010] In one exemplary implementation, the composition may be for blocking UV rays.

[0011] In one exemplary implementation, the viscosity of the composition may be 2000 to 15000 cps (Brookfield viscometer) at 30°C.

[0012] In one exemplary implementation, the composition may have a water phase and an oil phase mixed together to form a bicontinuous phase.

[0013] In one exemplary implementation, the aqueous phase may include a water-dispersible organic UV screening agent and a powder, and the oil phase may include an oil-dispersible organic UV screening agent and a powder.

[0014] In one exemplary implementation, the powder may be silica or cellulose.

[0015] In one exemplary embodiment, the weight of the powder contained in the aqueous phase may be 0.5 to 3.0 wt % of the total composition, and the weight of the powder contained in the oil phase may be 0.5 to 3.0 wt % of the total composition.

[0016] In one exemplary implementation, the water-dispersible organic UV blocker may include at least one selected from the group consisting of phenylbenzimidazole sulfonic acid and terephthalylidene dicamphor sulfonic acid.

[0017] In one exemplary implementation, the water-dispersible organic UV blocker may be included in an amount of 1 to 13 wt % based on the total weight of the composition.

[0018] In one exemplary implementation, the oil-dispersible organic UV screener may include at least one selected from the group consisting of Octocrylene, Ethylhexyl Salicylate, Homosalate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Polysilicone-15, Ethylhexyl Triazone, Butyl Methoxydibenzoylmethane, Drometrizole Trisiloxane, and Diethylamino Hydroxybenzoyl Hexyl Benzoate.

[0019] In one exemplary implementation, the oil-dispersible organic UV screener may be included in an amount of 5 to 35% by weight based on the total weight of the composition.

[0020] In one exemplary embodiment, the mixing weight ratio of the oil phase to the aqueous phase may be 1:1 to 10:1.

[0021] In one exemplary implementation, the aqueous phase may be thickened by further including an aqueous gelling agent.

[0022] In one exemplary implementation, the aqueous gelling agent may include at least one selected from gums and mannans.

[0023] In one exemplary implementation, the aqueous gelling agent may include at least one selected from the group consisting of carbomer, sodium polyacryloyldimethyl taurate, polyacrylate crosspolymer-6, xanthan gum, guar gum, locust bean gum, gellan gum, galactomannan, glucomannan, agar, carrageenan, Sphingomonas ferment extract, acrylates / C10-30 alkyl acrylate crosspolymer, and acrylates crosspolymer.

[0024] In one exemplary implementation, the aqueous phase may further include a pH adjuster or neutralizer.

[0025] In one exemplary implementation, the pH adjuster or neutralizer may include at least one selected from the group consisting of triethanolamine, aminomethyl propanol, ethanolamine, ammonium hydroxide, and tromethamine.

[0026] In one exemplary implementation, the oil phase may further include an elastomer.

[0027] In one exemplary implementation, the elastomer may be a silicone gel.

[0028] In one exemplary implementation, the silicone gel may include at least one selected from the group consisting of dimethicone / dimethicone crosspolymer, isododecane / dimethicone / bis-isobutyl PPG-20 crosspolymer, and dimethicone / vinyl dimethicone crosspolymer.

[0029] In one exemplary implementation, the elastomer may be included in an amount of 5 to 35% by weight based on the total weight of the composition. [Effects of the Invention]

[0030] In one embodiment, the composition of the present invention is excellent in the effect of suppressing the white cast phenomenon.

[0031] In one embodiment, the composition of the present invention can provide a natural, clear skin appearance.

[0032] In one embodiment, the composition of the present invention has an excellent ultraviolet blocking effect.

[0033] In one embodiment, the compositions of the present invention contain both an oil phase and an aqueous phase and are embodied in a clear formulation.

[0034] In one embodiment, the composition of the present invention has excellent water resistance because it can maintain a stable formulation even without containing an emulsifier. [Brief explanation of the drawings]

[0035] [Figure 1] 1 shows a conventional emulsion formulation and a clear composition formulation according to an exemplary implementation of the present invention. [Figure 2A] FIG. 1 is a graph showing the results of a comparative experiment on the appearance transparency of the formulations of Example 1 and Comparative Example 1, depending on whether or not a surfactant is contained. [Figure 2B] FIG. 1 is a graph showing the results of a comparative experiment on the appearance transparency of the formulations of Example 2 and Comparative Example 2, depending on whether or not a surfactant is contained. [Figure 3] FIG. 1 is a graph showing the results of an experiment comparing transparency when Example 1 and Comparative Example 1 are applied. [Figure 4] 1 is a graph showing the results of a comparison experiment of water resistance between Example 1 and Comparative Example 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0036] The terms used in this specification are generally selected as widely used as possible while taking into consideration the functions of the present invention, but these may change depending on the intentions of engineers in the relevant field, precedents, or the emergence of new technology. In addition, in certain cases, the applicant may have arbitrarily selected terms, and in such cases, their meanings will be described in detail in the relevant detailed description of the invention. Therefore, the terms used in this specification should be defined based on the meanings of the terms and the overall content of the present invention, rather than simply by their names.

[0037] Unless otherwise specified, all terms used in the present invention, including technical or scientific terms, are used in the sense commonly understood by those having ordinary skill in the art to which the present invention belongs. Commonly understood terms should be interpreted as having the same meaning as the contextual meaning in the relevant art, and should not be interpreted in an ideal or overly formal sense unless otherwise specified.

[0038] Numerical ranges are inclusive of the numerical values ​​defined herein. Every maximum numerical limitation given throughout this specification includes every lower numerical limitation, as if such lower numerical limitation were expressly recited. Every minimum numerical limitation given throughout this specification includes every higher numerical limitation, as if such higher numerical limitation were expressly recited. Every numerical limitation given throughout this specification will include every finer numerical range within the broader numerical range, as if such narrower numerical limitation were expressly recited.

[0039] As used herein, the terms "comprise," "have," and "contain" are inclusive or open-ended and do not exclude additional, unrecited elements or method steps. As used herein, the term "or combinations thereof" refers to all permutations and combinations of the items listed before the term. For example, "A, B, C, or combinations thereof" is intended to include at least one of A, B, C, AB, AC, BC, or ABC, and, if order is important in the particular context, BA, CA, CB, CBA, BCA, ACB, BAC, or CAB. In addition to this example, combinations containing repeats of at least one item or term may also be included, such as BB, AAA, MB, BBC, AAABCCCC, CBBAAA, CABABB, etc. One of ordinary skill in the art will understand that there is typically no limit to the number of items or terms in any combination, unless the context clearly dictates otherwise.

[0040] Exemplary implementations of the present disclosure are described in detail below.

[0041] In one aspect, the present invention may provide a cosmetic composition that includes an aqueous phase and an oily phase, the aqueous phase and the oily phase being mixed together and being a transparent preparation.

[0042] The term "aqueous phase" refers to a portion containing an aqueous solvent and a plurality of particles dissolved in the aqueous phase. For example, the aqueous solvent may be ionized water, but is not limited thereto.

[0043] The term "oil phase" refers to a portion containing an oil phase solvent and a plurality of particles dissolved in the oil phase. For example, the oil phase solvent may include, but is not limited to, dibutyl adipate, butyloctyl salicylate, or a mixture thereof.

[0044] The term "transparent formulation" is intended to encompass all formulations that are not opaque, and includes, for example, both formulations that have a transparent or translucent appearance.

[0045] The cosmetic composition may have the appearance of a cosmetically or dermatologically acceptable vehicle or base. This may be any formulation suitable for topical application, for example, in the form of a solution, gel, solid, anhydrous paste, emulsion obtained by dispersing an oily phase in an aqueous phase, suspension, microemulsion, microcapsules, microgranules or vesicular dispersions of ionic (liposomes) and non-ionic types, or in the form of a cream, lotion, milk, powder, ointment, spray or stick concealer. These compositions may be prepared according to conventional methods in the art.

[0046] The cosmetic composition is not particularly limited in its formulation, and may be formulated into cosmetics such as, for example, a softening lotion, an astringent lotion, a nourishing lotion, a nourishing cream, a massage cream, a beauty serum, an eye cream, an eye essence, a cleansing cream, a cleansing foam, a cleansing water, a face mask, a powder, a body lotion, a body cream, a body oil, or a body essence.

[0047] When the cosmetic composition is formulated as a paste, cream, or gel, the carrier component may be animal fiber, plant fiber, wax, paraffin, starch, tragacanth, cellulose derivatives, polyethylene glycol, silicone, bentonite, silica, talc, zinc oxide, or the like.

[0048] When the cosmetic composition is formulated as a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, or polyamide powder may be used as a carrier component, and particularly in the case of a spray, a propellant such as hydrochlorofluorocarbon, propane / butane, or dimethyl ether may further be included.

[0049] The cosmetic composition according to an exemplary embodiment may further include functional additives and components typically included in cosmetic compositions. The functional additives may include at least one component selected from the group consisting of water-soluble vitamins, oil-soluble vitamins, polymeric peptides, polymeric polysaccharides, sphingolipids, and seaweed extracts.

[0050] The cosmetic composition may further contain, in addition to the functional additives, ingredients typically found in cosmetic compositions, as needed, such as oils and fats, moisturizers, emollients, organic and inorganic pigments, organic powders, preservatives, disinfectants, antioxidants, plant extracts, pH adjusters, alcohols, colorants, fragrances, blood circulation enhancers, cooling agents, antiperspirants, purified water, etc.

[0051] In one exemplary implementation, the composition may be for blocking UV rays.

[0052] The composition of the present invention allows the aqueous phase and the oil phase to be uniformly mixed without the addition of an emulsifier by chemically or physically controlling the viscosities of the aqueous phase and the oil phase. The viscosities of the respective phases can be selected without limitation by those skilled in the art according to the viscosity of the desired cosmetic composition.

[0053] In one exemplary embodiment, the viscosity of the composition may be 2000 to 15000 cps (Brookfield viscometer) at 30° C. For example, the viscosity of the composition may be 2000 cps or more, 2500 cps or more, 3000 cps or more, 3500 cps or more, 4000 cps or more, 4500 cps or more, 5000 cps or more, 5500 cps or more, 6000 cps or more, 6500 cps or more, 7000 cps or more, 7500 cps or more, 8000 cps or more, 8500 cps or more, 900 cps or more, or 1000 cps or more. The density may be, but is not limited to, 0 cps or more, 9500 cps or more, 10000 cps or more, 10500 cps or more, 11000 cps or more, 11500 cps or more, 12000 cps or more, 12500 cps or more, 13000 cps or more, 13500 cps or more, 14000 cps or more, 14500 cps or more, or 15000 cps or more. The viscosity of the composition at 30°C is 15,000 cps or less, 14,500 cps or less, 14,000 cps or less, 13,500 cps or less, 13,000 cps or less, 12,500 cps or less, 12,000 cps or less, 11,500 cps or less, 11,000 cps or less, 10,500 cps or less, 10,000 cps or less, 9,500 cps or less, 9,000 cps or less, 850 The density may be, but is not limited to, 0 cps or less, 8000 cps or less, 7500 cps or less, 7000 cps or less, 6500 cps or less, 6000 cps or less, 5500 cps or less, 5000 cps or less, 4500 cps or less, 4000 cps or less, 3500 cps or less, 3000 cps or less, 2500 cps or less, or 2000 cps or less.

[0054] In one exemplary embodiment, the composition may have a bicontinuous phase formed by mixing an aqueous phase and an oil phase. The term "bicontinuous phase" refers to a state in which neither the aqueous phase nor the oil phase forms a continuous or dispersed phase, but is mixed to form a stable layer.

[0055] In one exemplary embodiment, the aqueous phase may include a water-dispersible organic UV screening agent and a powder, and the oil phase may include an oil-dispersible organic UV screening agent and a powder. The powder may be included without limitation as long as it can adjust the viscosity of the aqueous phase or the oil phase from the perspective of a person skilled in the art.

[0056] In one exemplary implementation, the powder may be silica or cellulose.

[0057] In one exemplary embodiment, the weight of the powder contained in the aqueous phase may be 0.5 to 3.0 wt % of the total composition, and the weight of the powder contained in the oil phase may be 0.5 to 3.0 wt % of the total composition.

[0058] In one exemplary implementation, the water-dispersible organic UV blocker may include at least one selected from the group consisting of phenylbenzimidazole sulfonic acid and terephthalylidene dicamphor sulfonic acid.

[0059] In one exemplary embodiment, the water-dispersible organic UV blocker may be included in an amount of 1 to 13 wt % based on the total weight of the composition, for example, but not limited to, 1 wt % or more, 1.5 wt % or more, 2 wt % or more, 2.5 wt % or more, 3 wt % or more, 3.5 wt % or more, 4 wt % or more, 4.5 wt % or more, 5 wt % or more, 5.5 wt % or more, 6 wt % or more, 6.5 wt % or more, 7 wt % or more, 7.5 wt % or more, 8 wt % or more, 8.5 wt % or more, 9 wt % or more, 9.5 wt % or more, 10 wt % or more, 10.5 wt % or more, 11 wt % or more, 11.5 wt % or more, 12 wt % or more, or 12.5 wt % or more based on the total weight of the composition. Furthermore, the water-dispersible organic UV blocker may be present in an amount of, but not limited to, 13 wt % or less, 12.5 wt % or less, 12 wt % or less, 11.5 wt % or less, 11 wt % or less, 10.5 wt % or less, 10 wt % or less, 9.5 wt % or less, 9 wt % or less, 8.5 wt % or less, 8 wt % or less, 7.5 wt % or less, 7 wt % or less, 6.5 wt % or less, 6 wt % or less, 5.5 wt % or less, 5 wt % or less, 4.5 wt % or less, 4 wt % or less, 3.5 wt % or less, 3 wt % or less, 2.5 wt % or less, 2 wt % or less, or 1.5 wt % or less, based on the total weight of the composition.

[0060] In one exemplary implementation, the oil-dispersible organic UV screener may include at least one selected from the group consisting of Octocrylene, Ethylhexyl Salicylate, Homosalate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Polysilicone-15, Ethylhexyl Triazone, Butyl Methoxydibenzoylmethane, Drometrizole Trisiloxane, and Diethylamino Hydroxybenzoyl Hexyl Benzoate.

[0061] In one exemplary embodiment, the oil-dispersible organic UV blocker may be included in an amount of 5 to 35 wt % based on the total weight of the composition. For example, the oil-dispersible organic UV blocker may be included in an amount of 5 wt % or more, 6 wt % or more, 7 wt % or more, 8 wt % or more, 9 wt % or more, 10 wt % or more, 11 wt % or more, 12 wt % or more, 13 wt % or more, 14 wt % or more, 15 wt % or more, 16 wt % or more, 17 wt % or more, 18 wt % or more, 19 wt % or more, 20 wt % or more, 21 wt % or more, 22 wt % or more, 23 wt % or more, 24 wt % or more, 25 wt % or more, 26 wt % or more, 27 wt % or more, 28 wt % or more, 29 wt % or more, 30 wt % or more, 31 wt % or more, 32 wt % or more, 33 wt % or more, or 34 wt % or more based on the total weight of the composition, but is not limited thereto. Furthermore, for example, the oil-dispersible organic UV screener may be contained in an amount of 35 wt % or less, 34 wt % or less, 33 wt % or less, 32 wt % or less, 31 wt % or less, 30 wt % or less, 29 wt % or less, 28 wt % or less, 27 wt % or less, 26 wt % or less, 25 wt % or less, 24 wt % or less, 23 wt % or less, 22 wt % or less, 21 wt % or less, 20 wt % or less, 19 wt % or less, 18 wt % or less, 17 wt % or less, 16 wt % or less, 15 wt % or less, 14 wt % or less, 13 wt % or less, 12 wt % or less, 11 wt % or less, 10 wt % or less, 9 wt % or less, 8 wt % or less, 7 wt % or less, or 6 wt % or less, relative to the total weight of the composition, but is not limited thereto.

[0062] In one exemplary embodiment, the mixing weight ratio of the oil phase to the aqueous phase may be 1:1 to 10:1. For example, the mixing weight ratio of the oil phase to the aqueous phase may be 1:1 or more, 1.1:1 or more, 1.2:1 or more, 1.3:1 or more, 1.4:1 or more, 1.5:1 or more, 1.6:1 or more, 1.7:1 or more, 1.8:1 or more, 1.9:1 or more, or 2:1 or more, but is not limited to these. The mixing weight ratio of the oil phase to the aqueous phase may be, but is not limited to, 10:1 or less, 9.5:1 or less, 9:1 or less, 8.5:1 or less, 8:1 or less, 7.5:1 or less, 7:1 or less, 6.5:1 or less, 6:1 or less, 5.5:1 or less, 5:1 or less, 4.5:1 or less, 4:1 or less, 3.5:1 or less, 3:1 or less, 2.8:1 or less, 2.6:1 or less, 2.4:1 or less, or 2.2:1 or less. From the perspective of a person skilled in the art, the mixing weight ratio of the oil phase to the aqueous phase may be appropriately selected to adjust the viscosity of the composition.

[0063] In one exemplary embodiment, the aqueous phase may be thickened by further including an aqueous gelling agent. The aqueous gelling agent may be any agent that can dissolve in the aqueous phase and increase the viscosity, as understood by those skilled in the art.

[0064] In one exemplary implementation, the aqueous gelling agent may include at least one selected from gums and mannans.

[0065] In one exemplary implementation, the aqueous gelling agent may include at least one selected from the group consisting of carbomer, sodium polyacryloyldimethyl taurate, polyacrylate crosspolymer-6, xanthan gum, guar gum, locust bean gum, gellan gum, galactomannan, glucomannan, agar, carrageenan, Sphingomonas ferment extract, acrylates / C10-30 alkyl acrylate crosspolymer, and acrylates crosspolymer.

[0066] In one exemplary implementation, the aqueous phase may further include a pH adjuster or neutralizer.

[0067] In one exemplary implementation, the pH adjuster or neutralizer may include at least one selected from the group consisting of triethanolamine, aminomethyl propanol, ethanolamine, ammonium hydroxide, and tromethamine.

[0068] In one exemplary embodiment, the pH adjuster or neutralizer may be included in an amount of 80 wt % or more relative to the weight of the water-dispersible organic UV screening agent. For example, but not limited to, the pH adjuster or neutralizer may be included in an amount of 80 wt % or more, 80.5 wt % or more, 81 wt % or more, 81.5 wt % or more, 82 wt % or more, 82.5 wt % or more, 83 wt % or more, 83.5 wt % or more, 84 wt % or more, 84.5 wt % or more, 85 wt % or more, 85.5 wt % or more, 86 wt % or more, 86.5 wt % or more, 87 wt % or more, or 87.5 wt % or more relative to the weight of the water-dispersible organic UV screening agent.

[0069] In one exemplary implementation, the oil phase may further include an elastomer.

[0070] In one exemplary implementation, the elastomer may be a silicone gel.

[0071] In one exemplary implementation, the silicone gel may include at least one selected from the group consisting of dimethicone / dimethicone crosspolymer, isododecane / dimethicone / bis-isobutyl PPG-20 crosspolymer, and dimethicone / vinyl dimethicone crosspolymer.

[0072] In one exemplary implementation, the elastomer may comprise 5 to 35 wt % of the total weight of the composition, for example, but not limited to, 5 wt % or more, 6 wt % or more, 7 wt % or more, 8 wt % or more, 9 wt % or more, 10 wt % or more, 11 wt % or more, 12 wt % or more, 13 wt % or more, 14 wt % or more, 15 wt % or more, 16 wt % or more, 17 wt % or more, 18 wt % or more, 19 wt % or more, 20 wt % or more, 21 wt % or more, 22 wt % or more, 23 wt % or more, 24 wt % or more, 25 wt % or more, 26 wt % or more, 27 wt % or more, 28 wt % or more, 29 wt % or more, 30 wt % or more, 31 wt % or more, 32 wt % or more, 33 wt % or more, or 34 wt % or more of the total weight of the composition. Also, for example, the elastomer may be present in an amount of 35 wt% or less, 34 wt% or less, 33 wt% or less, 32 wt% or less, 31 wt% or less, 30 wt% or less, 29 wt% or less, 28 wt% or less, 27 wt% or less, 26 wt% or less, 25 wt% or less, 24 wt% or less, 23 wt% or less, 22 wt% or less, 21 wt% or less, 20 wt% or less, 19 wt% or less, 18 wt% or less, 17 wt% or less, 16 wt% or less, 15 wt% or less, 14 wt% or less, 13 wt% or less, 12 wt% or less, 11 wt% or less, 10 wt% or less, 9 wt% or less, 8 wt% or less, 7 wt% or less, or 6 wt% or less, based on the total weight of the composition, but is not limited thereto.

[0073] In one exemplary implementation, the composition may be free of surfactants or emulsifiers.

[0074] The present invention can provide the following embodiments as examples.

[0075] The first embodiment may provide a cosmetic composition that includes an aqueous phase and an oily phase, and is a transparent preparation in which the aqueous phase and the oily phase are mixed together.

[0076] A second embodiment may provide a composition according to the first embodiment, wherein the composition is for blocking ultraviolet rays.

[0077] A third embodiment may provide a composition according to the first embodiment, wherein the viscosity of the composition at 30° C. is 2000 to 15000 cps (Brookfield viscometer).

[0078] The fourth embodiment may be the first embodiment, wherein the composition is a composition in which an aqueous phase and an oil phase are mixed to form bicontinuous phases.

[0079] A fifth embodiment may provide a composition according to the first embodiment, wherein the aqueous phase contains a water-dispersible organic UV blocker and a powder, and the oil phase contains an oil-dispersible organic UV blocker and a powder.

[0080] A sixth embodiment may provide the composition of the fifth embodiment, wherein the powder is silica or cellulose.

[0081] The seventh embodiment may provide a composition according to the fifth embodiment, wherein the weight of the powder contained in the aqueous phase is 0.5 to 3.0 wt % of the total composition, and the weight of the powder contained in the oil phase is 0.5 to 3.0 wt % of the total composition.

[0082] An eighth embodiment may provide the composition of the fifth embodiment, wherein the water-dispersible organic UV blocker includes at least one selected from the group consisting of phenylbenzimidazole sulfonic acid and terephthalylidene dicamphor sulfonic acid.

[0083] A ninth embodiment may provide the composition of the fifth embodiment, wherein the water-dispersible organic ultraviolet blocking agent is contained in an amount of 1 to 13 wt % relative to the total weight of the composition.

[0084] A tenth embodiment may provide the composition of the fifth embodiment, wherein the oil-dispersible organic UV screener includes at least one selected from the group consisting of octocrylene, ethylhexyl salicylate, homosalate, bis-ethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, ethylhexyl triazone, butyl methoxydibenzoylmethane, drometrizole trisiloxane, and diethylamino hydroxybenzoyl hexyl benzoate.

[0085] An eleventh embodiment may provide the composition of the fifth embodiment, wherein the oil-dispersible organic UV blocker is contained in an amount of 5 to 35% by weight relative to the total weight of the composition.

[0086] The twelfth embodiment may provide a composition according to the first embodiment, wherein the mixing weight ratio of the oil phase to the aqueous phase is 1:1 to 10:1.

[0087] A thirteenth embodiment may provide a composition according to the first embodiment, wherein the aqueous phase is thickened by further containing an aqueous gelling agent.

[0088] A fourteenth embodiment may provide a composition according to the thirteenth embodiment, wherein the aqueous gelling agent comprises at least one selected from gums and mannan.

[0089] A fifteenth embodiment may provide the composition of the thirteenth embodiment, wherein the aqueous gelling agent comprises at least one selected from the group consisting of carbomer, sodium polyacryloyldimethyl taurate, polyacrylate crosspolymer-6, xanthan gum, guar gum, locust bean gum, gellan gum, galactomannan, glucomannan, agar, carrageenan, Sphingomonas ferment extract, acrylates / C10-30 alkyl acrylate crosspolymer, and acrylates crosspolymer.

[0090] A sixteenth embodiment may provide a composition according to the first embodiment, wherein the aqueous phase further comprises a pH adjuster or a neutralizer.

[0091] A seventeenth embodiment may provide the composition of the sixteenth embodiment, wherein the pH adjuster or neutralizer includes at least one selected from the group consisting of triethanolamine, aminomethyl propanol, ethanolamine, ammonium hydroxide, and tromethamine.

[0092] An eighteenth embodiment may provide a composition according to the first embodiment, wherein the oil phase further comprises an elastomer.

[0093] A 19th embodiment may provide the composition of the 18th embodiment, wherein the elastomer is a silicone gel.

[0094] A twentieth embodiment may provide a composition according to the nineteenth embodiment, wherein the silicone gel comprises at least one selected from the group consisting of dimethicone / dimethicone crosspolymer, isododecane / dimethicone / bis-isobutyl PPG-20 crosspolymer, and dimethicone / vinyl dimethicone crosspolymer.

[0095] A 21st embodiment may provide the composition of the 18th embodiment, wherein the elastomer is contained in an amount of 5 to 35 wt % relative to the total weight of the composition.

[0096] The present invention will be described in more detail below with reference to examples, etc. It will be obvious to those skilled in the art that these examples are merely for the purpose of illustrating the present invention and that the scope of the present invention is not limited by these examples.

[0097] Manufacturing example The manufacturing methods of the examples and comparative examples according to one embodiment of the present invention are as follows: The components and contents of the examples and comparative examples are shown in Table 1 below.

[0098] In one embodiment of the present invention, the oil phase components were sequentially added to a container and mixed and dissolved. The aqueous phase components were mixed and dissolved in a separate container, and then added to the container containing the oil phase components and mixed using a homogenizer (Homo Mixer, Mark 2 2.5) to prepare UV blocking compositions (Examples 1 and 2).

[0099] As a comparative example of the present invention, the oil phase components were sequentially added to a container at room temperature and completely dissolved and dispersed. Then, the aqueous phase components were mixed and dissolved in a separate container. The mixture was then added to the container containing the oil phase components and emulsified using a homogenizer (Homo Mixer, Mark 2 2.5) to prepare UV blocking compositions (Comparative Examples 1 and 2).

[0100] [Table 1]

[0101] [Experimental Example] 1. UV blocking power comparison experiment Based on the "UV Protection Functionality Test Method" in the "Standards and Test Methods for Functional Cosmetics" announced by the Korea Food and Drug Administration, the UV protection index was measured by attaching a transparent plastic tape (Transpore Tape; 3M, USA) to the prepared cast, and then applying the cosmetic compositions of Examples 1 and 2 and Comparative Examples 1 and 2 at a sample concentration of 2 mg / cm. 2 The UV blocking effect was measured using an SPF 290 analyzer. The UV blocking index was calculated as the average of three experimental values. The results are shown in Table 2 below.

[0102] As can be seen from the values ​​shown in Table 2 below, Example 1 and Comparative Example 1, and Example 2 and Comparative Example 2, which have the same ingredients and contents except for the presence or absence of an emulsifier, were confirmed to have similar SPF indices.

[0103] [Table 2]

[0104] 2. Transparency comparison experiment Example 1 and Comparative Example 1 were placed in transparent containers, and the transparency of the appearance of the formulation was compared visually. It was confirmed that Example 1 maintained its transparency compared to the opaque Comparative Example 1 (FIGS. 2A and 2B).

[0105] Furthermore, a fixed amount of Example 1 and Comparative Example 1 was applied between glass slides, and the two were pressed together to compare the transparency of the formulations. Comparative Example 1 was applied opaquely, and the color of the bottom surface could not be seen, whereas Example 1 was applied transparently, and it was confirmed that the color of the bottom surface underneath the glass slide was clearly visible (Figure 3).

[0106] 3.Water resistance comparison experiment The formulation was applied to a glass slide at the same thickness using an applicator (100 μm), and then dried at room temperature for 5 minutes. After that, ionized water was dropped onto the applied surface using a dropper, and the shape of the water droplets spreading on the applied composition was confirmed.

[0107] As a result of the experiment, it was confirmed that in Comparative Example 1, water droplets were dispersed on the preparation and the degree of spreading was high, whereas in Example 1, the dispersion of water droplets was poor and the degree of spreading was low.

[0108] Therefore, it was confirmed that Example 1 was superior in water resistance compared to Comparative Example 1 (FIG. 4).

Claims

1. Contains an aqueous phase and an oil phase, The aqueous phase and the oil phase are mixed together, The cosmetic composition is a transparent formulation.

2. The composition according to claim 1 , wherein the composition is for blocking ultraviolet rays.

3. 2. The composition according to claim 1, wherein the viscosity of the composition is 2,000 to 15,000 cps (Brookfield viscometer) at 30°C.

4. The composition according to claim 1 , wherein the composition comprises a water phase and an oil phase mixed together to form a bicontinuous phase.

5. The composition according to claim 1 , wherein the aqueous phase comprises a water-dispersible organic UV screen and a powder, and the oil phase comprises an oil-dispersible organic UV screen and a powder.

6. 6. The composition of claim 5, wherein the powder is silica or cellulose.

7. The composition according to claim 5, wherein the weight of the powder contained in the aqueous phase is 0.5 to 3.0% by weight based on the total composition, and the weight of the powder contained in the oil phase is 0.5 to 3.0% by weight based on the total composition.

8. 6. The composition of claim 5, wherein the water-dispersible organic UV screener comprises at least one selected from the group consisting of phenylbenzimidazole sulfonic acid and terephthalylidene dicamphor sulfonic acid.

9. 6. The composition of claim 5, wherein the water-dispersible organic UV screener is present in an amount of 1 to 13% by weight based on the total weight of the composition.

10. The oil-dispersible organic UV screener is selected from the group consisting of octocrylene, ethylhexyl salicylate, homosalate, bis-ethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, ethylhexyl triazone, butyl methoxydibenzoylmethane, and drometrizole trisiloxane.

6. The composition of claim 5, comprising at least one selected from the group consisting of Trisiloxane, and Diethylamino Hydroxybenzoyl Hexyl Benzoate.

11. The composition according to claim 5, wherein the oil-dispersible organic UV screener is present in an amount of 5 to 35% by weight based on the total weight of the composition.

12. 2. The composition according to claim 1, wherein the mixing weight ratio of the oil phase to the aqueous phase is 1:1 to 10:

1.

13. The composition according to claim 1 , wherein the aqueous phase is thickened by further including an aqueous gelling agent.

14. 14. The composition of claim 13, wherein the aqueous gelling agent comprises at least one selected from gums and mannans.

15. The aqueous gelling agent may be selected from the group consisting of carbomer, sodium polyacryloyldimethyl taurate, polyacrylate crosspolymer-6, xanthan gum, guar gum, locust bean gum, gellan gum, galactomannan, glucomannan, agar, carrageenan, and Sphingomonas ferment extract. The composition of claim 13, comprising at least one selected from the group consisting of acrylate / C10-30 alkyl acrylate crosspolymer, acrylate / C10-30 alkyl acrylate crosspolymer, and acrylate crosspolymer.

16. The composition of claim 1 , wherein the aqueous phase further comprises a pH adjuster or neutralizer.

17. 17. The composition of claim 16, wherein the pH adjuster or neutralizer comprises at least one selected from the group consisting of triethanolamine, aminomethyl propanol, ethanolamine, ammonium hydroxide, and tromethamine.

18. The composition according to claim 1 , wherein the oil phase further comprises an elastomer.

19. 20. The composition of claim 18, wherein the elastomer is a silicone gel.

20. 20. The composition of claim 19, wherein the silicone gel comprises at least one selected from the group consisting of dimethicone / dimethicone crosspolymer, isododecane / dimethicone / bis-isobutyl PPG-20 crosspolymer, and dimethicone / vinyl dimethicone crosspolymer.

21. 19. The composition of claim 18, wherein the elastomer comprises 5 to 35% by weight based on the total weight of the composition.

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