Oil-in-water nanoemulsion composition, method for preparing same, and cosmetic composition comprising same

Abstract

The present invention relates to an oil-in-water UV-blocking nanoemulsion cosmetic composition for makeup, comprising a nanoemulsion composition and powder. The cosmetic composition according to the present invention has improved moisturizing power, feeling of use, and skin absorption, and has excellent UV-blocking power and makeup effects. In addition, the present invention provides a method for preparing an oil-in-water UV-blocking nanoemulsion cosmetic composition for makeup having excellent formulation stability.

Description

Water-in-oil type nanoemulsion composition, method for preparing the same, and cosmetic composition containing the same

[0001] The present invention relates to an oil-in-water type nanoemulsion composition, a cosmetic composition containing the same, and a method for manufacturing the same. More specifically, it relates to a UV-blocking and makeup cosmetic composition incorporating an oil-in-water type nanoemulsion composition and a method for manufacturing the same.

[0002] Nanoemulsions improve the skin absorption of cosmetic compositions by reducing particle size and provide excellent usability, such as high moisturizing effects and reduced stickiness. Accordingly, conventional nanoemulsion cosmetic compositions have been released mainly as basic products such as toners, ampoules, and creams.

[0003] Meanwhile, water-in-oil type emulsions are not suitable for makeup cosmetic compositions such as foundation because they have difficulty dispersing and stabilizing powder in the external aqueous phase.

[0004] Therefore, there is a need to develop a makeup cosmetic composition that possesses the advantages of a nanoemulsion with excellent moisturizing power and feel, the fresh moisturizing sensation or light spreadability of an oil-in-water type emulsion, improved dispersion and stability of powders such as pigments, and high coverage, excellent adhesion, and long-lasting durability.

[0005] In order to solve the problems of the prior art as described above, the present invention aims to provide an in-water type UV protection and makeup nanoemulsion cosmetic composition comprising an in-water type nanoemulsion composition.

[0006] In addition, the present invention aims to provide a method for manufacturing an in-water type UV blocking and makeup nanoemulsion cosmetic composition.

[0007] The present invention provides a method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, comprising the steps of: preparing an oil phase containing a surfactant and a skin conditioning agent (S1); preparing an aqueous phase containing a polyol (S2); mixing the oil phase and the aqueous phase (S3); emulsifying the mixture of the step (S3) using a microfluidizer to prepare an oil-in-water type nanoemulsion composition (S4); and adding a powder composition to the oil-in-water type nanoemulsion composition prepared in the step (S4) (S5).

[0008] In one embodiment, the powder composition may be prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser.

[0009] In one embodiment, the powder may comprise one or more selected from the group consisting of titanium dioxide, fine titanium dioxide, zinc oxide, fine zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, chromium oxide green, Red 226, lake pigment, silica, silica dimethyl silylate, mica, talc, synthetic fluorophlogopite, methyl methacrylate crosspolymer, polymethylsilsesquioxane, lauroyl lysine, boron nitride, nylon powder, vinyl dimethicone / methicone silsesquioxane crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, vinyl dimethicone / methicone silsesquioxane crosspolymer, barium sulfate, and magnesium myristate.

[0010] In one embodiment, the powder composition may be included in an amount of 1 to 70 weight% with respect to the total weight of the cosmetic composition.

[0011] In one embodiment, the powder may be included in an amount of 0.1 to 50 weight% with respect to the total weight of the cosmetic composition.

[0012] In one embodiment, the powder may be included in an amount of 3 to 70 weight percent based on the total weight of the powder composition.

[0013] In one embodiment, the surfactant is glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, PEG-10 dimethicone, It may include one or more selected from the group consisting of polyglyceryl-3 polydimethylsiloxyethyl dimethicone and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

[0014] In one embodiment, the surfactant may be included in an amount of 0.1 to 20 weight% based on the total weight of the water-in-oil type nanoemulsion composition.

[0015] In one embodiment, the skin conditioning agent comprises disiloxane, trisiloxane, dimethicone, methyltrimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylylmethicone, cetyldimethicone, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, diphenyldimethicone, trimethylsiloxyphenyldimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylate / dimethicone copolymer, acrylate / polytrimethylsiloxymethacrylate copolymer, acrylate / stearylacrylate / dimethicone methacrylate copolymer, polypropylsilsesquioxane, polymethylsilsesquioxane, polyphenylsilsesquioxane, vinyl dimethicone / methiconesilsesquioxane crosspolymer, Dimethicone / Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone / PEG-10 / 15 Crosspolymer, Dimethicone / Polyglycerin-3 Crosspolymer, Lauryl Dimethicone / Polyglycerin-3 Crosspolymer, Dilinoleic Acid / Butanediol Copolymer, Castor Oil / IPDI Copolymer, Coco-Caprylate / Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic / Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, Isononyl Isononanoate, Cetyl Ethylhexanoate, Butylene Glycol Dicaprylate / Dicaprate, Dibutyl Adipate, It may include one or more selected from the group consisting of isododecane, C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil.

[0016] In one embodiment, the skin conditioning agent may be included in an amount of 0.1 to 70 weight% based on the total weight of the water-in-oil type nanoemulsion composition.

[0017] In one embodiment, the polyol may include one or more selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, glycerin, pentylene glycol, and 1,2-hexanediol.

[0018] In one embodiment, the polyol may be included in an amount of 0.1 to 50 weight% based on the total weight of the water-in-oil type nanoemulsion composition.

[0019] In one embodiment, the step (S4) may be performed under a pressure of 100 to 1500 bar.

[0020] In one embodiment, the step (S4) may be performed at a temperature of 0 to 70 ℃.

[0021] In one embodiment, the above step (S4) may be performed two or more times.

[0022] In one embodiment, the solvent may comprise one or more selected from the group consisting of cyclopentasiloxane, cyclohexasiloxane, dimethicone 1CS-100CS, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, caprylylmethicone, methyltrimethicone, isononyl isononanoate, isododecane, isohexadecane, C12-15 alkyl benzoate, caprylic / capric triglyceride, octyldodecanol, butylene glycol, propylene glycol, propanediol, glycerin, and purified water.

[0023] In one embodiment, the dispersant is glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan isostearate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, polyglyceryl-10 myristate, It may include one or more selected from the group consisting of polyglyceryl-10 laurate, PEG-40 stearate, PEG-60 hydrogenated castor oil, arachidyl alcohol, behenyl alcohol, arachidyl glucoside, PEG-10 dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

[0024] In one embodiment, the high-pressure dispersion can be performed under a pressure of 600 to 1500 bar.

[0025] In addition, the present invention provides an in-water type UV protection and makeup nanoemulsion cosmetic composition comprising: an in-water type nanoemulsion composition; and a powder composition.

[0026] In one embodiment, the water-in-oil type nanoemulsion composition may include a surfactant, a skin conditioning agent, and a polyol.

[0027] In one embodiment, the water-in-oil type nanoemulsion composition may be included in an amount of 1 to 99 weight% based on the total weight of the cosmetic composition.

[0028] In one embodiment, the powder composition may be included in an amount of 0.1 to 50 weight% with respect to the total weight of the cosmetic composition.

[0029] In one embodiment, the powder composition may be prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser.

[0030] In one embodiment, the high-pressure dispersion can be performed under a pressure of 600 to 1500 bar.

[0031] In one embodiment, the water-in-oil type nanoemulsion composition may include an active ingredient.

[0032] In one embodiment, the active ingredient may include one or more selected from the group consisting of niacinamide, adenosine, panthenol, Centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, and madecassic acid.

[0033] In one embodiment, the active ingredient may be included in an amount of 0.01 to 20 weight% based on the total weight of the water-in-oil type nanoemulsion composition.

[0034] According to one embodiment of the present invention, an in-water type UV protection and makeup nanoemulsion cosmetic composition with improved moisturizing power, feel, and skin absorption can be provided.

[0035] In addition, according to one embodiment of the present invention, an in-water type UV protection and makeup nanoemulsion cosmetic composition having high coverage, excellent adhesion, and long-lasting properties can be provided.

[0036] In addition, according to one embodiment of the present invention, an in-water type UV blocking and makeup nanoemulsion cosmetic composition having excellent UV blocking power can be provided.

[0037] In addition, according to one embodiment of the present invention, a method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition with excellent formulation stability can be provided.

[0038] The present invention will be explained in more detail below with reference to examples. However, these examples are intended to illustrate the invention and should not be interpreted as limiting the scope of the invention.

[0039] According to one aspect of the present invention, a method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition is provided.

[0040] The above manufacturing method comprises the steps of: preparing an oil phase containing a surfactant and a skin conditioning agent (S1); preparing an aqueous phase containing a polyol (S2); mixing the oil phase and the aqueous phase (S3); emulsifying the mixture from step (S3) using a microfluidizer to prepare an aqueous-in-water type nanoemulsion composition (S4); and adding a powder composition to the aqueous-in-water type nanoemulsion composition prepared in step (S4) (S5).

[0041] The emulsification step (S4) using the above-mentioned microfluidizer can be performed at 100 to 1500 bar. In the present invention, the above-mentioned step (S4) can be performed at 100 bar or more, 200 bar or more, 300 bar or more, 400 bar or more, or 500 bar or more, and can be performed at 1500 bar or less, 1300 bar or less, 1100 bar or less, 900 bar or less, or 700 bar or less. If the above-mentioned step (S4) is performed at less than 100 bar, the extrusion capability is low, so nano-sizes may not be formed or the mixture may not be discharged from the device, and if it is performed at more than 1500 bar, the pressure applied to the emulsion interface is high, so there is a problem that the emulsion is not formed smoothly and separates.

[0042] The step (S4) of emulsifying using the above-mentioned microfluidizer can be performed at 0 to 70 ℃. In the present invention, the above-mentioned step (S4) can be performed at 0 ℃ or higher, 10 ℃ or higher, 20 ℃ or higher, 30 ℃ or higher, 40 ℃ or higher, 50 ℃ or higher, or 60 ℃ or higher, and can be performed at 70 ℃ or lower, 60 ℃ or lower, 50 ℃ or lower, 40 ℃ or lower, or 30 ℃ or lower. If the above-mentioned step (S4) is performed at less than 0 ℃, there is a problem of low productivity due to a decrease in the fluidity of the mixture, and if it is performed at more than 70 ℃, there is a problem of phase separation without emulsification.

[0043] The step (S4) of emulsifying using the above-mentioned microfluidizer can be performed once or two or more times.

[0044] In this specification, the term "powder composition" means a composition comprising powder.

[0045] In some embodiments, the powder composition introduced in the powder composition introduction step (S5) may be a dispersion prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser. In some embodiments, the high-pressure dispersing may be performed under a pressure of 600 to 1500 bar.

[0046] According to another aspect of the present invention, the present invention provides an in-water type UV protection and makeup nanoemulsion cosmetic composition comprising an in-water type nanoemulsion composition and a powder composition.

[0047] The above-described water-in-oil type UV protection and makeup nanoemulsion cosmetic composition may comprise 1 to 99 weight% of a water-in-oil type nanoemulsion composition and 0.1 to 50 weight% of a powder composition based on the total weight of the cosmetic composition.

[0048] The above water-in-oil type nanoemulsion composition may include a surfactant, a skin conditioning agent, and a polyol.

[0049] The above water-in-oil type nanoemulsion composition may further include an active ingredient, purified water, and other additives.

[0050] The above powder composition may be prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser, and the mixture may further include additives depending on the application.

[0051] The water-in-oil type nanoemulsion composition of the present invention may have an average particle size of the oil phase of 10 to 1000 nm.

[0052] A. Surfactants

[0053] The composition of the present invention includes a surfactant. In the present invention, the surfactant affects the stability of the emulsion formulation.

[0054] The above surfactants are glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, PEG-10 dimethicone, It may be one or more selected from the group consisting of polyglyceryl-3 polydimethylsiloxyethyl dimethicone and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

[0055] The above surfactant may be included in an amount of 0.1 to 20 weight% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the surfactant may be included in an amount of 0.1 weight% or more, 1 weight% or more, 5 weight% or more, 10 weight% or more, or 12 weight% or more, and may be included in an amount of 20 weight% or less, 18 weight% or less, 16 weight% or less, 15 weight% or less, or 14 weight% or less. If the surfactant is less than 0.1 weight%, the interface of the nanoemulsion cannot be maintained, and if it exceeds 20 weight%, there is a problem in that the stability of the formulation decreases due to the surfactant not participating in the formation of the nanoemulsion.

[0056] B. Skin conditioning agent

[0057] The composition of the present invention includes a skin conditioning agent. In the present invention, the skin conditioning agent can improve the longevity of moisture and provide a soft sensation.

[0058] The above skin conditioning agent may be one or more selected from the group consisting of hydrocarbon oils, ester oils, silicone oils, polyesters, fatty acids and / or fatty alcohols, animal oils, vegetable oils, mineral oils, and mixtures thereof, and, for example, disiloxane, trisiloxane, dimethicone, methyltrimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylylmethicone, cetyldimethicone, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, diphenyldimethicone, trimethylsiloxyphenyldimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylate / dimethicone copolymer, acrylate / polytrimethylsiloxymethacrylate copolymer, acrylate / stearylacrylate / dimethicone methacrylate copolymer, polypropylsilsesquioxane, Polymethylsilsesquioxane, Polyphenylsilsesquioxane, Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, Dimethicone / Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone / PEG-10 / 15 Crosspolymer, Dimethicone / Polyglycerin-3 Crosspolymer, Lauryl Dimethicone / Polyglycerin-3 Crosspolymer, Dilinoleic Acid / Butanediol Copolymer, Castor Oil / IPDI Copolymer, Coco-Caprylate / Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic / Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, It may be one or more selected from the group consisting of isononyl isononanoate, cetyl ethylhexanoate, butylene glycol dicaprylate / dicaprate, dibutyl adipate, isododecane, C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil.

[0059] The above skin conditioning agent may be included in an amount of 0.1 to 70 weight% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the skin conditioning agent may be included in an amount of 0.1 weight% or more, 5 weight% or more, 10 weight% or more, 15 weight% or more, 20 weight% or more, 30 weight% or more, 35 weight% or more, or 40 weight% or more, and may be included in an amount of 70 weight% or less, 60 weight% or less, 50 weight% or less, or 45 weight% or less. If the above skin conditioning agent is less than 0.1 weight%, there is a problem of phase separation without emulsification, and if it exceeds 70 weight%, there is a problem where the advantages of the nanoemulsion are reduced due to the high specific gravity of the external phase (oil phase).

[0060] C. Polyol

[0061] The composition of the present invention includes a polyol. In the present invention, the polyol can increase moisturizing power and improve formulation stability.

[0062] The above polyol may be one or more selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, glycerin, pentylene glycol, and 1,2-hexanediol.

[0063] The above polyol may be included in an amount of 0.1 to 50 weight% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the polyol may be included in an amount of 0.1 weight% or more, 5 weight% or more, 10 weight% or more, 15 weight% or more, or 20 weight% or more, and may be included in an amount of 50 weight% or less, 45 weight% or less, 40 weight% or less, 35 weight% or less, or 30 weight% or less. If the polyol is less than 0.1 weight%, the viscosity is formed high, which causes a problem of difficulty in passing through a microfluidizer, and if it exceeds 50 weight%, there is a problem of phase separation without emulsification.

[0064] D. Powder composition and powder

[0065] The composition of the present invention includes a powder composition.

[0066] The above powder composition may be included in an amount of 1 to 70 weight% based on the total weight of the cosmetic composition. In the present invention, the powder composition may be included in an amount of 1 weight% or more, 10 weight% or more, 20 weight% or more, 30 weight% or more, 40 weight% or more, or 45 weight% or more, and may be included in an amount of 70 weight% or less, 65 weight% or less, 60 weight% or less, 55 weight% or less, or 50 weight% or less.

[0067] In the present invention, the powder composition includes powder.

[0068] In the present invention, any powder known in the field may be used as the powder, for example, titanium dioxide, fine titanium dioxide, zinc oxide, and fine zinc oxide used for UV protection and as coloring pigments; yellow iron oxide, red iron oxide, black iron oxide, ultramarine, chromium oxide green, Red 226, and lake pigments applicable as dyes; One or more selected from the group consisting of silica, silica dimethyl silylate, mica, talc, synthetic fluorophlogopite, methyl methacrylate crosspolymer, polymethylsilsesquioxane, lauroyl lysine, boron nitride, nylon powder, vinyl dimethicone / methicone silsesquioxane crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, vinyl dimethicone / methicone silsesquioxane crosspolymer, barium sulfate, and magnesium myristate may be used as extender pigments, but are not limited thereto.

[0069] The above powder may be included in an amount of 0.1 to 50 weight% based on the total weight of the cosmetic composition. In the present invention, the powder may be included in an amount of 0.1 weight% or more, 5 weight% or more, 10 weight% or more, 15 weight% or more, or 20 weight% or more, and may be included in an amount of 50 weight% or less, 45 weight% or less, 40 weight% or less, 35 weight% or less, or 30 weight% or less. If the powder is less than 0.1 weight%, there is a problem in that it cannot perform makeup and UV protection functions such as water resistance, spreadability, usability, durability, and coverage. If it exceeds 50 weight%, emulsification is difficult, and there is a problem in that it cannot pass through a high-pressure disperser due to high viscosity or reduced productivity.

[0070] The above powder may be included in an amount of 4 to 70 weight% based on the total weight of the powder composition. In the present invention, the powder may be included in an amount of 0.4 weight% or more, 10 weight% or more, 15 weight% or more, 20 weight% or more, or 30 weight% or more based on the total weight of the powder composition, and may be included in an amount of 70 weight% or less, 60 weight% or less, 50 weight% or less, 45 weight% or less, 40 weight% or less, 35 weight% or less, or 30 weight% or less.

[0071] E. Solvent

[0072] In the present invention, the powder composition may include a solvent. The solvent may be included in an amount of 20 to 85 weight percent based on the total weight of the powder composition.

[0073] The above solvent may be one or more selected from the group consisting of cyclopentasiloxane, cyclohexasiloxane, dimethicone 1CS-100CS, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, caprylylmethicone, methyltrimethicone, isononyl isononanoate, isododecane, isohexadecane, C12-15 alkyl benzoate, caprylic / capric triglyceride, octyldodecanol, butylene glycol, propylene glycol, glycerin, and purified water.

[0074] F. Dispersant

[0075] In the present invention, the powder composition may include a dispersant. The dispersant may be included in an amount of 1 to 20 weight percent based on the total weight of the powder composition.

[0076] The above dispersant is glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, polyglyceryl-10 myristate, polyglyceryl-10 laurate, It may be one or more selected from the group consisting of PEG-40 stearate, PEG-60 hydrogenated castor oil, arachidyl alcohol, behenyl alcohol, arachidyl glucoside, PEG-10 dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

[0077] G. Active ingredients

[0078] The composition of the present invention may include an active ingredient.

[0079] In the present invention, any active ingredient known in the field can be used as long as it is a water-soluble physiologically active ingredient, for example, one or more selected from the group consisting of niacinamide, adenosine, panthenol, Centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, and madecassic acid may be used.

[0080] The above active ingredient may be included in an amount of 0.01 to 20 weight% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the active ingredient may be included in an amount of 0.01 weight% or more, 0.05 weight% or more, 0.1 weight% or more, 0.5 weight% or more, 1 weight% or more, or 2 weight% or more, and may be included in an amount of 20 weight% or less, 15 weight% or less, 10 weight% or less, 7 weight% or less, or 5 weight% or less. If the above active ingredient is less than 0.01 weight%, the efficacy of the active ingredient may not be sufficiently manifested, and if it exceeds 20 weight%, the stability of the formulation may be low.

[0081] H. Purified water

[0082] The composition of the present invention may include purified water. In the present invention, the content of the purified water may be the remainder satisfying 100% of the water-in-oil type UV blocking and makeup nanoemulsion composition.

[0083] I. Other Additives

[0084] Meanwhile, the composition of the present invention may further include additives commonly used in the technical field to which the present invention belongs, depending on the application, within a range that does not impede the purpose and effect of the present invention, and preferably may include at least one selected from the group consisting of moisturizers, metal ion chelators, skin softeners, thickeners, preservatives, and preservatives, but is not limited thereto.

[0085] In the present invention, the aforementioned other additives may be contained in an amount of 0.1 to 10 weight percent.

[0086] Hereinafter, preferred embodiments are described to explain the present invention in more detail. However, the following embodiments are described solely for the purpose of illustrating the present invention and are not intended to limit the present invention.

[0087] <Preparation of Water-In-Water Type UV Protection and Makeup Nanoemulsion Cosmetic Composition 1>

[0088] Water-in-water type UV protection and makeup nanoemulsion cosmetic compositions with different powder contents were prepared according to the composition (weight%) of Table 1 below.

[0089]

[0090]

[0091] Specifically, according to the composition of Table 1 above, triceteareth-4 phosphate and dimethicone were weighed and heated to 30°C to prepare an oil phase, and propanediol, niacinamide, purified water, and other additives were heated to 30°C to prepare an aqueous phase. The oil phase was slowly added to the aqueous phase and stirred at 3000 rpm for 10 minutes using a homogenizer to prepare a mixture. The mixture was emulsified twice using a microfluidizer at a temperature of 30°C and a pressure of 500 bar to prepare an in-water type nanoemulsion composition.

[0092] Next, titanium dioxide, yellow iron oxide, red iron oxide, black iron oxide, sorbitan isostearate, and propanediol were mixed and then high-pressure dispersed using a high-pressure disperser at a temperature of 30°C and a pressure of 500 bar to prepare a powder composition, and the prepared powder composition was added to an oil-in-water type nanoemulsion composition and stirred at 5000 rpm for 10 minutes to prepare an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition.

[0093] Meanwhile, the specific manufacturing method of the comparative example is the same as that of the example, except that sorbitan isostearate is added to the oil phase, the propanediol content in the aqueous phase differs, and titanium dioxide, yellow iron oxide, red iron oxide, and black iron oxide are added as powder instead of the powder composition.

[0094] Formulation implementation test

[0095] Formulation implementation tests were performed on the compositions of the examples and comparative examples.

[0096] Each composition prepared in the examples and comparative examples was visually inspected, and the particle size was measured by static light scattering (SLS) using an LA-960 particle size analyzer (Horiba, Japan). The results of the formulation appearance evaluation and the average particle size are shown in Table 2 below.

[0097] - Formulation evaluation criteria

[0098] ◎: Very Good, ○: Good, △: Average, ×: Poor

[0099]

[0100] As shown in Table 2, in Examples 1 to 3, nanoemulsions with an average particle size of 150 to 300 nm were formed, and it was confirmed that the pigments were evenly dispersed. On the other hand, in Comparative Example 1, although a nanoemulsion was formed with an average particle size of 256 nm, the pigments were not dispersed and clumping was observed.

[0101] From formulation implementation tests, it was confirmed that the nanoemulsion cosmetic composition of the present invention can implement a small emulsion formulation with an average particle size of 150 to 300 nm, which can improve skin absorption, and that the dispersibility and stability of the powder are excellent.

[0102] Dispersibility test

[0103] A powder dispersion state test was performed on the compositions of the examples and comparative examples using a colorimeter and in-vitro SPF values.

[0104] To compare the dispersion state of the powder, the compositions of the examples and comparative examples were applied to a opacity paper to a thickness of 60 μm, and the L value (brightness value) immediately after application was measured using a CM-26d colorimeter. The brighter the color, the higher the L value, and the measured L values ​​are shown in Table 3.

[0105]

[0106] As shown in Table 3, in Example 3, no pigment spots were found compared to Comparative Example 1 of the same composition, and it was confirmed that the color was brighter and the L value was larger. In other words, even when preparing a nanoemulsion cosmetic of the same composition, it was confirmed that the dispersibility of the pigment is improved when a powder composition that has undergone a pre-dispersion process of the pigment through a high-pressure disperser is introduced, compared to when the pigment in powder form is introduced without separate high-pressure dispersion.

[0107] To compare the dispersion state of the powder, the in-vitro SPF was measured for the compositions of the examples and comparative examples. The SPF was measured using a UV-2000 Ultraviolet Transmittance Analyzer, and the samples were prepared by uniformly applying a certain amount of the composition to a PMMA plate. The measured SPF values ​​are shown in Table 4.

[0108]

[0109] As shown in Table 4, it was confirmed that Example 3 had an improved SPF compared to Comparative Example 1 of the same composition. In other words, it can be seen that by preparing a general emulsion composition of the same composition into a nanoemulsion and including it in a cosmetic composition, a cosmetic composition having a higher UV blocking effect can be provided.

[0110] Makeup effect test

[0111] Makeup effect tests were performed on the compositions of the examples and comparative examples.

[0112] For the makeup effect test, 20 women aged 20 to 40 were asked to use each cosmetic composition prepared in the examples and comparative examples, and then evaluated the makeup effect in three categories, such as coverage, adhesion, and durability. A score of 1 to 10 was assigned to each category, and the average value was calculated by summing the scores of the 20 participants. The results are shown in Table 3 below.

[0113] - Evaluation Criteria

[0114] 8 points or more: Very Good (◎), 6–8 points: Good (○), 3–6 points: Average (△), Less than 3 points: Poor (×)

[0115]

[0116] As shown in Table 5, Example 3 was rated as excellent in all categories, whereas Comparative Example 1 received a low rating in adhesion and durability. Example 1 received a low rating in coverage due to the low powder content, but received a good rating in adhesion and durability, while Example 2 received a generally good rating.

[0117] From the makeup effect test, it can be seen that the nanoemulsion cosmetic composition of the present invention provides an excellent makeup effect by improving adhesion and longevity even with the same coverage.

[0118] < Preparation of Water-In-Water Type UV Protection and Makeup Nanoemulsion Cosmetic Composition 2 >

[0119] Water-in-oil type sunscreen and makeup nanoemulsion cosmetic compositions with different skin conditioning agent contents were prepared according to the composition (weight%) of Table 6 below.

[0120]

[0121] Specifically, according to the composition of Table 6 above, triceteareth-4 phosphate and dimethicone were weighed and heated to 30°C to prepare the oil phase, and propanediol, niacinamide, purified water, and other additives were heated to 30°C to prepare the aqueous phase. The oil phase was slowly added to the aqueous phase and stirred at 3000 rpm for 10 minutes using a homogenizer to prepare a mixture. The mixture was emulsified twice using a microfluidizer at a temperature of 30°C and a pressure of 500 bar to prepare an in-water type nanoemulsion composition.

[0122] Next, titanium dioxide, yellow iron oxide, red iron oxide, black iron oxide, sorbitan isostearate, and propanediol were mixed and then high-pressure dispersed using a high-pressure disperser at a temperature of 30°C and a pressure of 500 bar to prepare a powder composition. The prepared powder composition was added to an oil-in-water type nanoemulsion composition and stirred at 5000 rpm for 10 minutes to prepare an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition.

[0123] Meanwhile, Comparative Example 2 was prepared in the same manner as the example, except that it did not undergo a high-pressure emulsification process using a microfluidizer.

[0124] Formulation implementation test

[0125] Formulation implementation tests were performed on the compositions of the examples and comparative examples.

[0126] Each composition prepared in the examples and comparative examples was visually inspected, and the particle size was measured by static light scattering (SLS) using an LA-960 particle size analyzer (Horiba, Japan). The results of the formulation appearance evaluation and the average particle size are shown in Table 7 below.

[0127] - Formulation evaluation criteria

[0128] ◎: Very Good, ○: Good, △: Average, ×: Poor

[0129]

[0130] As shown in Table 7, it was confirmed that Examples 4, 5, and 6 achieved water-in-oil type UV blocking and makeup nanoemulsions with an average particle size of 300–400 nm, whereas Comparative Example 2 failed to stably capture the internal oil phase and exhibited phase separation during the preparation of the cosmetic composition.

[0131] From formulation implementation tests, it was confirmed that the water-in-oil type UV protection and makeup nanoemulsion cosmetic composition of the present invention can implement a water-in-oil type UV protection and makeup nanoemulsion formulation without phase separation.

[0132] Although embodiments of the present invention have been described above, those skilled in the art will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

1. A step of preparing an oil phase containing a surfactant and a skin conditioning agent (S1); Step (S2) of preparing an aqueous phase containing polyol; A step of mixing the above oil phase and the above water phase (S3); Step (S4) of preparing an in-water type nanoemulsion composition by emulsifying the mixture of the above step (S3) using a microfluidizer; and A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition comprising the step (S5) of adding a powder composition to the oil-in-water type nanoemulsion composition prepared in the above step (S4).

2. In Claim 1, A method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above powder composition is prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser.

3. In Claim 2, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above powder comprises one or more selected from the group consisting of titanium dioxide, fine titanium dioxide, zinc oxide, fine zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, chromium oxide green, Red 226, lake pigment, silica, silica dimethyl silylate, mica, talc, synthetic fluorophlogopite, methyl methacrylate crosspolymer, polymethylsilsesquioxane, lauroyl lysine, boron nitride, nylon powder, vinyl dimethicone / methicone silsesquioxane crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, vinyl dimethicone / methicone silsesquioxane crosspolymer, barium sulfate, and magnesium myristate.

4. In Claim 1, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the powder composition is included in an amount of 1 to 70 weight% based on the total weight of the cosmetic composition.

5. In Claim 2, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above powder is included in an amount of 0.1 to 50 weight% based on the total weight of the cosmetic composition.

6. In Claim 2, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above powder is included in an amount of 3 to 70 weight% based on the total weight of the powder composition.

7. In Claim 1, The above surfactants are glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, PEG-10 dimethicone, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition comprising one or more selected from the group consisting of polyglyceryl-3 polydimethylsiloxyethyl dimethicone and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

8. In Claim 1, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above surfactant is included in an amount of 0.1 to 20 weight% based on the total weight of the oil-in-water type nanoemulsion composition.

9. In Claim 1, The above skin conditioning agent is disiloxane, trisiloxane, dimethicone, methyltrimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylylmethicone, cetyldimethicone, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, diphenyldimethicone, trimethylsiloxyphenyldimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylate / dimethicone copolymer, acrylate / polytrimethylsiloxymethacrylate copolymer, acrylate / stearyl acrylate / dimethicone methacrylate copolymer, polypropylsilsesquioxane, polymethylsilsesquioxane, polyphenylsilsesquioxane, vinyl dimethicone / methiconesilsesquioxane crosspolymer, Dimethicone / Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone / PEG-10 / 15 Crosspolymer, Dimethicone / Polyglycerin-3 Crosspolymer, Lauryl Dimethicone / Polyglycerin-3 Crosspolymer, Dilinoleic Acid / Butanediol Copolymer, Castor Oil / IPDI Copolymer, Coco-Caprylate / Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic / Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, Isononyl Isononanoate, Cetyl Ethylhexanoate, Butylene Glycol Dicaprylate / Dicaprate, Dibutyl Adipate, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition comprising one or more selected from the group consisting of isododecane, C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil.

10. In Claim 1, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the skin conditioning agent is included in an amount of 0.1 to 70 weight% based on the total weight of the oil-in-water type nanoemulsion composition.

11. In Claim 1, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above polyol comprises one or more selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, glycerin, pentylene glycol, and 1,2-hexanediol.

12. In Claim 1, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above polyol is included in an amount of 0.1 to 50 weight% based on the total weight of the oil-in-water type nanoemulsion composition.

13. In Claim 1, A method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above step (S4) is performed under a pressure of 100 to 1500 bar.

14. In Claim 1, A method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above step (S4) is performed at a temperature of 0 to 70 ℃.

15. In Claim 1, A method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the above step (S4) is performed two or more times.

16. In Claim 2, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the solvent comprises one or more selected from the group consisting of cyclopentasiloxane, cyclohexasiloxane, dimethicone 1CS-100CS, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, caprylylmethicone, methyltrimethicone, isononyl isononanoate, isododecane, isohexadecane, C12-15 alkyl benzoate, caprylic / capric triglyceride, octyldodecanol, butylene glycol, propylene glycol, propanediol, glycerin, and purified water.

17. In Claim 2, The above dispersant is glyceryl stearate, PEG-100 stearate, sorbitan stearate, polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, cetearyl oliveate, sorbitan isostearate, sorbitan oliveate, polyglyceryl-3 methylglucose distearate, cetearyl alcohol, cetearyl glucoside, C14-22 alcohol, C12-20 alkyl glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate, triceteareth-4 phosphate, glycol stearate, PEG-2 stearate, polyglyceryl-10 oleate, potassium cetyl phosphate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate, polyglyceryl-10 myristate, A method for preparing an oil-in-water type UV protection and makeup nanoemulsion cosmetic composition comprising one or more selected from the group consisting of polyglyceryl-10 laurate, PEG-40 stearate, PEG-60 hydrogenated castor oil, arachidyl alcohol, behenyl alcohol, arachidyl glucoside, PEG-10 dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

18. In Claim 2, A method for preparing an in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the high-pressure dispersion is performed under a pressure of 600 to 1500 bar.

19. Water-in-oil type nanoemulsion composition; and Water-in-oil type UV protection and makeup nanoemulsion cosmetic composition comprising a powder composition.

20. In Claim 19, The above-described water-in-oil type nanoemulsion composition is a water-in-oil type UV protection and makeup nanoemulsion cosmetic composition comprising a surfactant, a skin conditioning agent, and a polyol.

21. In Claim 19, An oil-in-water type UV protection and makeup nanoemulsion cosmetic composition in which the above-mentioned oil-in-water type nanoemulsion composition is included in an amount of 1 to 99 weight% based on the total weight of the cosmetic composition.

22. In Claim 19, An oil-in-water type UV protection and makeup nanoemulsion cosmetic composition in which the powder composition is included in an amount of 0.1 to 50 weight% based on the total weight of the cosmetic composition.

23. In Claim 19, The above powder composition is an in-water type UV protection and makeup nanoemulsion cosmetic composition prepared by mixing a powder, a solvent, and a dispersant, and then high-pressure dispersing the mixture using a high-pressure disperser.

24. In Claim 23, An in-water type UV protection and makeup nanoemulsion cosmetic composition, wherein the high-pressure dispersion is performed under a pressure of 600 to 1500 bar.

25. In Claim 19, The above-mentioned water-in-oil type nanoemulsion composition is a water-in-oil type UV protection and makeup nanoemulsion cosmetic composition containing an active ingredient.

26. In Claim 25, A water-in-oil type UV protection and makeup nanoemulsion cosmetic composition comprising one or more active ingredients selected from the group consisting of niacinamide, adenosine, panthenol, Centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, and madecassic acid.

27. In Claim 25, A water-in-oil type UV protection and makeup nanoemulsion cosmetic composition in which the above active ingredient is included in an amount of 0.01 to 20 weight% based on the total weight of the water-in-oil type nanoemulsion composition.

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