KR20180098773A - Cosmetics Composition for Harmful Rays blocking - Google Patents

Abstract

The present disclosure provides a cosmetic composition for the treatment of aquatic-type harmful light rays in which a hydrophobic visible light blocking agent is homogeneously dispersed in an aqueous phase, and a method for maintaining the stability of such a composition, thereby satisfying consumers' And can promote related industry development.

Description

[0001] Cosmetics Composition for Harmful Rays blocking [

The present invention relates to a stable cosmetic composition in which a hydrophobic visible light blocking agent is uniformly dispersed in an aqueous phase as a cosmetic composition for harmful ray shielding.

Solar energy mainly comes to the earth as an electromagnetic wave, which includes radio wave, microwave, infrared ray, visible ray, ultraviolet ray, X ray and γ ray in order from the longest wavelength. Many sunscreen products developed to protect skin from sunlight (solar energy) prevent skin damage caused by the UVB region (290 to 320 nm) and the UVA region (320 to 400 nm) The focus is on. The effect of light of a wavelength other than ultraviolet light (for example, visible light) on human skin is hardly known, but recent studies on the harmful effects of violet light and blue light on the skin are underway.

In particular, it has been reported that blue light regulates proliferation and differentiation of keratinocytes and skin-derived endothelial cells, and violetite reduces the differentiation of keratinocytes, Have been reported to delay the recovery of damaged skin barrier.

In addition to the effects on the skin reported above, blue light increases the secretion amount of serotonin which suppresses the secretion of melatonin inducing sleep and induces arousal, thereby causing a sleeping disorder and reaching the retina immediately By inducing melanin production, it can cause skin irritation and stain.

Such violet light and blue light are frequently found in LED displays and LED lighting such as smart phones, notebooks, monitors, and the like, which are a necessity of modern people. Therefore, in the living environment of modern society, contact is inevitable. have. However, in the field of cosmetics, research for such harmful rays is insufficient. In particular, due to the nature of cosmetics and sunscreen products, it is also important to block the harmful rays and maintain the stability of the formulation.

THE JOURNAL OF BIOLOGICAL CHEMISTRY Vol. 280, No. 22, Issue of June 3, pp. 21061-21066, 2005 "Blue Light Induces Mitochondrial DNA Damage and Free Radical Production in Epithelial Cell"

It is an object of the present invention to provide a stable underwater-type cosmetic composition for visible light shielding, and a method for maintaining the stability of such a composition, which is a stable cosmetic composition for harmful ray shielding, in which a hydrophobic visible light blocking agent is uniformly dispersed in an aqueous phase .

In order to accomplish the above object, in one aspect, the present invention provides a water-repellent composition comprising: an oil-phase part including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent homogeneously dispersed on the water.

According to another aspect of the present invention, there is provided an oil-in-water emulsion comprising: an oil-in-water portion including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent homogeneously dispersed on the water, wherein the content of the surfactant is controlled to be 0.5 to 2% by weight based on the total weight of the composition, whereby the formulation stability of the cosmetic composition And the like.

Throughout this specification, it is possible to provide a stable underwater type cosmetic composition for visible light shielding in which the hydrophobic visible light blocking agent is homogeneously dispersed in an aqueous phase, and a method for maintaining the stability of such a composition, Can meet the needs of the industry and can promote the development of related industries.

As used herein, the term "visible light" refers to light that can be perceived by the human eye, and includes light of a wavelength range (380 to 800 nm), which is generally visible to the human eye among various electromagnetic waves. Generally, blue light means light having a wavelength of 380 to 500 nm and having a short wavelength and a strong energy among visible light visible to the human, that is, light reaching the retina, and more specifically, The 380 to 430 nm region may be divided into Violet light and the 430 to 500 nm region may be classified into Blue light.

As used herein, the term " OIL-DISPERSIBILITY " refers to a property or degree that is well dispersed in a fat or oil component, and is a concept included in hydrophobicity. Likewise, "water-dispersibility" refers to a property or degree that is well dispersed in water or a water-soluble substance, and is a concept included in hydrophilicity.

As used herein, "coloring component" refers to a coloring matter, pigment, or other substance having the ability to emit color. Quot; pigment ", preferably a pigment component which can be used as a raw material for cosmetics. The coloring component is selected from the group consisting of titanium dioxide, micro TiO ₂ , zinc oxide, micro ZnO, iron oxide (iron oxide, FeO (II), Fe ₂ O ₃ ⅲ), Fe ₃ O ₄ (ⅳ)), aluminum oxide (alumina, Al ₂ O _3), barium sulfate (barium sulphate, BaSO _3), PMMA (polymethyl methacrylate), silica, nylon, polyurethane, Ultra But are not limited to, at least one selected from the group consisting of marine, pearl, synthetic mica, mica, talc, kaolin, sericite and boron nitride.

As used herein, the term "thickening agent" refers to a substance that increases the viscosity of a solution, a composition, or the like, and is also referred to as a thickening agent or a thickening stabilizer. The thickening agent is a thickening agent You may.

As used herein, "emulsion" is one of the most commonly used formulation systems in the cosmetics industry and refers to a system in which oil phase and water phase are uniformly dispersed using emulsification technology. These emulsions can be prepared in various forms depending on the composition of the continuous phase and can be used in various forms such as w / o, water-in-oil, oil-in-water, (O / W) or oil-in-water (O / W) type emulsions can be used. In this specification, the form thereof is not particularly limited, can do.

In the present specification, the term "homo-mixing" is also referred to as homogenizing, and a homogenizing mixer or homogenizer (homogenous mixer or homogenizer) is used to homogenize raw materials in an emulsion or solution .

As used herein, the term "silicone oil" refers to a liquid silicone resin and a mixture thereof having a relatively low degree of polymerization. Wherein the volatile silicone oil comprises at least one of a linear polysiloxane oil and a cyclic polysiloxane oil and the nonvolatile silicone oil is selected from the group consisting of polydimethylsiloxane, phenylsiloxane, alkylmethylsiloxane, dimethicone, cyclomethicone, dimethyl Chicolin, dimethicone copolyol, silicone elastomer, silicone resin, and the like.

In the present specification, the term "anionic surfactant" refers to a portion of the surfactant that exhibits ionization and ionization when it is dissolved in water to become an anion. The surfactant is a nonionic surfactant (a surfactant that does not dissociate even if it has an atomic group in its molecule because it does not have an atomic group in its molecule), a cationic surfactant (a surfactant that dissociates into ions in water and becomes a cationic cation, ), Anionic surfactants, and amphoteric surfactants (surfactants having both cationic and anionic groups in the same molecule).

As used herein, "phosphate surfactant" refers to a surfactant comprising a chemical structural phosphate, "glutamate surfactant" refers to a surfactant comprising a chemical structural glutamate, and "carbamate surfactant" Quot; surfactant "

As used herein, the term " upper part "refers to a collective part of a substance including oil or a mixture thereof, and may include an aggregate part in which a raw material that can be mixed or dispersed in oil or a mixture thereof is mixed or added have. On the other hand, the term " water portion " refers to a collective portion of a substance including water, a substance that can be dissolved in water, or a mixture thereof, and includes water, a substance that can be dissolved in water, The raw materials which can be mixed or dispersed together may include a mixed portion or an aggregate portion added.

Unless defined otherwise,% refers to% by weight in this specification.

Until now, O / W emulsion products which have been stabilized by uniformly dispersing the hydrophobic visible light blocking agent in water phase have not been confirmed, and in particular, a product that achieves the stabilization of such O / W formulations and also has a skin tone correcting effect There is no. This is because it is very difficult to maintain the formulation stability of the cosmetic cosmetic while uniformly dispersing the hydrophobic visible ray blocking agent in the aqueous phase. Considering frequent exposure to harmful rays and consumers' concern, it is urgently necessary to prepare a composition which can effectively block harmful rays and improve the stability of O / W formulations and be applicable to actual cosmetic products. The problem is not solved.

In the case of O / W emulsion formulations containing hydrophilic visible light-blocking agents, especially titanium dioxide surface-treated with a water-dispersible material, when used in conjunction with most of the thickeners used for trauma (such as carbomers or acrylates) Excessive rise, gelling, and powder agglomeration are caused, and the formulation is significantly unstable, making it impossible to manufacture and use cosmetic products. On the other hand, in the case of O / W emulsion formulations containing titanium dioxide surface-treated with a hydrophobic visible ray blocking agent, especially an oil-dispersible (or hydrophobic) material, it is difficult to disperse in aqueous phase and stability of formulation can not be ensured.

In particular, the cosmetic composition of the present invention can be a more preferable cosmetic composition as long as the stability of the O / W emulsion formulation containing the hydrophobic visible light blocking agent can be effectively maintained while the makeup effect of skin tone correction can be realized at the same time. This is because the skin tone correction is also required as a complex function of a cosmetic product for blocking harmful rays. It was one of the long-standing challenges of the industry to manufacture cosmetic products that maintain long-term formulation stability while achieving harm ray blocking and skin tone correction at the same time.

The present invention confirms that a hydrophobic visible light blocking agent, in particular, an inorganic powder (e.g., titanium dioxide) surface-treated with a hydrophobic substance can effectively block harmful rays (particularly blue light and violet light) The present invention provides a method for stabilizing the O / W emulsion formulation for a long period of time by homogeneously dispersing the O / W emulsion formulation, and to provide a cosmetic composition of such O / W emulsion formulation and a method for enhancing the formulation stability of the composition. The present invention exhibits a skin tone correcting effect at the same time as blocking harmful rays (including ultraviolet rays and visible rays) and maintains the stability of the formulation for a long period of time, which is an invention that solves problems that have not been solved for a long time in the art.

In one aspect, the present invention relates to an oil-in-water emulsion comprising an oil-in-water part including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent which is uniformly dispersed (for example, dispersed in the form of emulsion particles) on the water. In one embodiment, the particle size of the dispersed emulsion may range from 0.1 to 20 μm in average diameter as measured by an optical microscope. In another embodiment, the average diameter is at least 0.1 μm, at least 0.5 μm, at least 0.8 μm, at least 1 μm, at least 1.2 μm, at least 1.5 μm, at least 2 μm, at least 3 μm, at least 4 μm, μm or more, 9 μm or more, 12 μm or more, 15 μm or more, or 18 μm or more. The average diameter may be not more than 20 μm, not more than 18 μm, not more than 15 μm, not more than 13 μm, not more than 10 μm, not more than 8 μm, not more than 6 μm, not more than 4 μm, not more than 2 μm, not more than 1 μm, . In another embodiment, the average diameter may be between 1 and 5 mu m.

According to another aspect of the present invention, there is provided an oil-in-water emulsion comprising: an oil-in-water portion including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent homogeneously dispersed on the water, wherein the content of the surfactant is controlled to be 0.5 to 2% by weight based on the total weight of the composition, whereby the formulation stability of the cosmetic composition .

According to one embodiment, the ultraviolet screening agent may be at least one of an organic ultraviolet screening agent and an inorganic ultraviolet screening agent.

According to another embodiment, the sunscreen agent is selected from the group consisting of ethylhexylmethoxycinnamate, isoamyl-P-methoxy cinnamate, ethylhexylsalicylate, bishexylhexyloxyphenolmethoxyphenyltriazine, diethylaminohydroxy Benzoylhexyl benzoate, octyl methoxycinnamate, octocrylene, homosalate, avobenzene, butylmethoxydibenzoylmethane, oxybenzone, octylliazone, ethylhexyltriazone, menthyl anthranylate, phenylbenzimide Napthalonic acid and 3,4-methylbenzylidene kempfer. According to another embodiment, the inorganic ultraviolet screening agent may be at least one selected from the group consisting of titanium dioxide, zinc oxide, and iron oxide.

According to another embodiment, the silicone oil may be at least one selected from the group consisting of cyclomethicone, dimethicone, cyclopentasiloxane, and silicone oil comprising cyclohexasiloxane. Preferably, the silicone oil may be at least one of cyclopentasiloxane and cyclohexasiloxane.

According to another embodiment, a hydrocarbon-based oil including squalane or mineral oil instead of the silicone oil; Ester-based oils including isopropyl palmitate, 2-octyldodecyl myristate, isopropyl myristate or butyl octyl salicylate; And vegetable oils including castor oil, olive oil or jojoba oil may be used.

Surfactants usable in the composition according to one aspect of the present invention include anionic surfactants such as sulfates, sulfosuccinates, saccharinates, phosphates, isethionates, glutamates, and taurates Amphoteric surfactants such as polyoxyethylene sorbitan fatty acid esters, polyoxyethylene (hardened) castor oil, glycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, alkylolamides, Alkyl glucosides, non-ionic surfactants such as carbamates surfactants (surfactants containing a carbamate in chemical structure, preferably inulin lauryl carbamate), and cationic surfactants such as N-alkyldiaminoethylglycine And may be used singly or in combination of two or more. Preferably, the anionic surfactant may have a hydrophilic group such as phosphate, sulfate, glutamate or citrate, and the counterion may have sodium, potassium or ammonium, and the hydrophobic group generally has a C2 to C24 fatty alkyl group A surfactant which can be used can be used.

According to another embodiment, the surfactant may be a phosphate surfactant or a glutamate surfactant, and in place of the anionic surfactant, a carbamate surfactant (a surfactant comprising a chemically structured carbamate, preferably inulin lauryl carbamate) May be used. Preferably, it is selected from the group consisting of potassium cetyl phosphate, aluminum isostearyl glyceryl phosphate, sodium lauryl sulfate, sodium stearoyl glutamate, and inulin lauryl carbamate Or more, and more preferably potassium cetyl phosphate. These materials can effectively and homogeneously disperse the visible light blocking agent having visible light blocking effect in the aqueous phase of the O / W emulsion formulation, thereby securing the stability of the O / W emulsion formulation for a long period of time.

The cosmetic composition according to one aspect of the present invention may further contain at least one emulsifier in addition to the above components. For example, there may be mentioned lecithin, hydrogenated lecithin, lycecotein, hydrosene dry lecithin, polysorbate 60, phage-40 stearate, octyldodec-25, The emulsifier may further contain at least one emulsifier selected from the group comprising salicylate, salicylic acid, salicylic acid, salicylic acid, salicylic acid, salicylic acid, salicylic acid, It is not. The emulsifier thus further contained may contain 0.01 to 10% by weight based on the total weight of the cosmetic composition. If it is less than 0.01% by weight, it is difficult to achieve the purpose of emulsification, and if it exceeds 10% by weight, it may irritate the skin.

According to another aspect of the present invention, the thickener is selected from the group consisting of a carbomer, a polyacrylamide, an ammonium acryloyldimethylate-vinyl copolymer, a xanthan gum, a cellulose ether, a polyvinyl derivative, an alginate, a polyacrylate, And mixtures thereof.

According to one embodiment, at least one of the upper aqueous phase and the upper aqueous phase may further comprise an increasing agent. Illustratively, mention may be made of sodium acrylate copolymers, crosslinked or non-crosslinked acrylic acid polymers, especially polyacrylic acid crosslinked with polyfunctional agents, cellulose derivatives (such as methyl cellulose, Methylcellulose, carboxymethylcellulose), sodium salts of cellulose derivatives, cetylstearyl alcohol, oxyethylenated cetylstearyl alcohol containing ethylene oxide, guar gum, xanthan gum, and combinations thereof. have.

According to one aspect of the present invention, the thickener may be contained in an amount of 0.001 to 20.0% by weight in the whole composition.

According to another embodiment, the hydrophobic visible light blocking agent may be a hydrophobic surface-treated inorganic powder.

According to another embodiment, the inorganic powder is selected from the group consisting of titanium dioxide, micro TiO ₂ , zinc oxide (ZnO), micro ZnO, iron oxide (iron oxide, FeO _{ⅱ), Fe 2 O 3 (} ⅲ), Fe 3 O 4 (ⅳ)), aluminum oxide (alumina, Al ₂ O _3), barium sulfate (barium sulphate, BaSO _3), silicon dioxide (silica, SiO _2), Talc, kaolin, sericite, and mica. It may preferably be titanium dioxide.

According to another embodiment, the surface treatment is selected from the group consisting of dimethicone, methicone, caprylyl silane with introduced substituent, lauroyl lysine, disodium stearoyl glutamate, sodium myristyl glutamate, silica, alumina, And aluminum hydroxide. ≪ Desc / Clms Page number 7 > Such a surface treatment can obtain a harmful ray blocking effect and at the same time can achieve a skin tone correction effect.

According to another embodiment, the hydrophobic visible light blocking agent or the hydrophobic surface treated inorganic powder may be titanium dioxide coated with aluminum hydroxide and triethoxycaprylylsilane.

According to another embodiment, the amount of the hydrophobic visible light blocking agent may be 0.5 to 5% by weight based on the total weight of the composition. If the amount is less than 0.5% by weight, the coloring effect and the visible ray shielding effect become insignificant. If the amount exceeds 5% by weight, dispersion in the formulation is not smooth and the stability of the formulation is remarkably deteriorated. Wherein the amount of the hydrophobic visible light blocking agent is at least 0.5 wt%, at least 0.8 wt%, at least 1 wt%, at least 1.2 wt%, at least 1.4 wt%, at least 1.6 wt%, at least 1.8 wt% Or more, 2.4% or more, 2.6% or more, 2.8% or more, 3% or more, 3.5% or more, 4% or more, 4.5% or more, or 4.8% or more. The content is 5 wt% or less, 4.8 wt% or less, 4.5 wt% or less, 4 wt% or less, 3.5 wt% or less, 3 wt% or less, 2.8 wt% or less, 2.6 wt% or less, 2.4 wt% Or less, 2.2 wt% or less, 2 wt% or less, 1.8 wt% or less, 1.6 wt% or less, 1.4 wt% or less, 1.2 wt% or less, 1 wt% or less, 0.8 wt% or less and 0.6 wt% or less. Preferably 1% by weight or more and less than 3% by weight.

According to another embodiment, the content of the surfactant may be 0.5 to 2% by weight based on the total weight of the composition. If the amount is less than 0.5% by weight, the formulation is unstable, and if it is more than 2% by weight, there is little difference in the effect from the case of 2% by weight, and skin irritation may be caused. The anionic surfactant may be present in an amount of 0.5 wt% or more, 0.7 wt% or more, 0.9 wt% or more, 1.0 wt% or more, 1.2 wt% or more, 1.4 wt% or more, 1.5 wt% or more, 1.6 wt% % ≪ / RTI > The anionic surfactant may be present in an amount of less than or equal to 2 wt%, less than or equal to 1.8 wt%, less than or equal to 1.6 wt%, less than or equal to 1.5 wt%, less than or equal to 1.4 wt%, less than or equal to 1.2 wt%, less than or equal to 1.0 wt% By weight or less, or 0.55% by weight or less.

According to another aspect of the present invention, the visible light may have a wavelength of 380 to 800 nm. Preferably, it may be at least one of a violet light having a wavelength of 380 to 430 nm and a blue light having a wavelength of 430 to 500 nm.

According to one embodiment, the cosmetic composition may contain at least 60% of violetite. The cosmetic composition may contain at least 60%, at least 65%, at least 68%, at least 70%, at least 75%, at least 78%, at least 80%, at least 85%, at least 90%, at least 95% Or more. The composition may also contain less than 98%, 95%, 90%, 85%, 80%, 78%, 75%, 70%, 68%, 65%, or 63% Or less.

According to another embodiment, the cosmetic composition may block more than 35% of blue light. Wherein the composition comprises at least 35%, 36%, 38%, 40%, 42%, 45%, 50%, 55%, 60%, 65%, or 68% It can be blocking. The composition may also contain up to 70%, 68%, 65%, 60%, 55%, 50%, 45%, 42%, 40%, 38% % Or less.

According to another embodiment, the cosmetic composition may be in the form of an emulsion or cream. According to another embodiment, the cosmetic composition may be an aqueous (O / W) emulsion formulation. The present disclosure may be applied to other formulations, but may in particular be related to the O / W emulsion composition and its formulation stabilization method. It is very difficult to disperse a hydrophobic visible ray blocking agent (for example, titanium dioxide surface-treated with a hydrophobic substance, zinc oxide surface-treated with a hydrophobic substance, etc.) in the O / W emulsion and O / W formulation stability , The present invention solves such a problem in one aspect.

According to another embodiment, the cosmetic composition may be in a liquid or cream form.

According to one embodiment of the present invention, the cosmetic composition may be such that the stability of the formulation is maintained at -30 캜 to 60 캜 for 4 weeks or more. In one embodiment, the temperature is at least -30 ° C, -20 ° C, -10 ° C, -5 ° C, 0 ° C, 5 ° C, 10 ° C, Or more, 30 占 폚 or more, 25 占 폚 or more, 40 占 폚 or more, 45 占 or more, 50 占 or more, 55 占 or more, 60 占 or 65 占 or more. The temperature is not more than 60 占 폚, less than 55 占 폚, less than 50 占 폚, less than 45 占 폚, less than 40 占 폚, less than 35 占 폚, less than 30 占 폚, less than 25 占 폚, less than 20 占 폚, less than 15 占 폚, ° C or lower, 0 ° C or lower, -5 ° C or lower, -10 ° C or lower, -20 ° C or lower, or -25 ° C or lower. Preferably -20 < 0 > C to 45 < 0 > C.

In addition, the stability may be maintained at -30 캜 to 60 캜 for 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, or 9 weeks or more. It may also be maintained for less than 10 weeks, less than 9 weeks, less than 8 weeks, less than 7 weeks, less than 6 weeks, or less than 5 weeks.

According to one aspect of the present invention, the hydrophobic visible light blocking agent may be homogenized and dispersed at 5000 to 15000 rpm for 1 to 20 minutes. Preferably 8000 to 12000 rpm for 3 to 8 minutes. In one embodiment, the homogenization may be homogenization within the aqueous phase or in the oil phase. According to another aspect of the present invention, the cosmetic composition may be obtained by uniformly dispersing the hydrophobic visible light blocking agent and then emulsifying the composition together with other raw materials or components. In one embodiment, the emulsification may be performed at 5000 to 15000 rpm for 1 to 20 minutes, preferably at 8000 to 12000 rpm for 3 to 6 minutes.

According to another embodiment, the cosmetic composition may be one for improving skin tone concurrently with visible ray blocking. In one aspect of the present invention there is provided a composition comprising a hydrophobic visible light blocking agent (e.g., titanium dioxide surface treated with a hydrophobic material) capable of blocking harmful visible light (e.g., one or more of blue light and violet light) It is possible to provide a cosmetic composition capable of stably maintaining the O / W formulation and at the same time improving the skin tone, and a method for stabilizing the formulation of the composition, so that the present specification can be widely used in the fields related to cosmetic compositions and sunscreen products.

The cosmetic composition may further contain ingredients included in a functional additive and a general cosmetic composition. The functional additives may include, for example, water-soluble vitamins, oil-soluble vitamins, polymer peptides, polymeric polysaccharides, sphingolipids and seaweed extracts. Examples of the other ingredients that can be included in the composition include humectants, emollients, surfactants, organic and inorganic pigments, organic powders, ultraviolet absorbents, preservatives, bactericides, antioxidants, plant extracts, pH adjusters, alcohols, Accelerators, coolants, antiperspirants, purified water, and the like.

The cosmetic composition is not particularly limited in shape and can be appropriately selected according to the purpose. For example, it can be used as a cleanser, a cleanser, a skin exfoliating product, a skin lotion, a skin softener, a skin toner, an astringent, a lotion, a milk lotion, a moisturizing lotion, But is not limited to, any one or more selected from the group consisting of an essence, a nutritional essence, a pack, a soap, a cleansing foam, a cleansing gel, a cleansing lotion, a cleansing cream, a body lotion and a body cleanser. Preferably in the form of a lotion or cream.

When the formulation according to one aspect of the present invention is a paste, a cream or a gel, an animal fiber, a plant fiber, a wax, a paraffin, a starch, a tracer, a cellulose derivative, a polyethylene glycol, a silicone, a bentonite, Etc. may be used.

In the case of a solution or an emulsion according to one aspect of the present invention, a solvent, a solvent or an emulsifier is used as a carrier component, and examples thereof include water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, Propylene glycol, 1,3-butyl glycol oil, glycerol aliphatic ester, polyethylene glycol or fatty acid esters of sorbitan.

When the formulation according to one aspect of the present invention is a surfactant-containing cleansing, the carrier component may include aliphatic alcohol sulfate, aliphatic alcohol ether sulfate, sulfosuccinic acid monoester, isethionate, imidazolinium derivative, methyltaurate, sarcosinate , Fatty acid amide ether sulfate, alkylamidobetaine, aliphatic alcohol, fatty acid glyceride, fatty acid diethanolamide, vegetable oil, linolenic derivative or ethoxylated glycerol fatty acid ester.

Hereinafter, configurations and effects according to one aspect of the present invention will be described in more detail through examples and the like. However, the following examples are provided for illustrative purposes only to help understand one aspect of the present invention, and the scope and scope of the present invention are not limited thereto.

EXAMPLES AND COMPARATIVE EXAMPLES Preparation of Cosmetic Composition of O / W Emulsion Form

TiO ₂ for hydrophobic pigments (for colorants) was dispersed in water phase of O / W emulsion form using potassium cetyl phosphate to prepare a cosmetic composition. Formulation of O / W Emulsion The following components can be prepared by using the ingredients shown in Table 1, and can be produced using a conventional O / W emulsion formulation.

Specifically, UV-blocking cosmetic compositions containing the ingredients listed in the following Table 1 were prepared, wherein the ingredients in the oily phase were mixed according to the values (% by weight) in the table and heated to 75 (mixture 1). On the other hand, in the table, the aqueous components were mixed according to the values in the table (wt%) and then heated to 75 (mixture 2). The mixture 2 and the surface-treated titanium dioxide were mixed and stirred (or the titanium dioxide surface-treated in the mixture 2 was mixed and homogenized (10,000 rpm, 5 minutes) and mixed and stirred in the mixture 1) , And the composition was uniformly emulsified (10,000 rpm, 4 minutes) with a homomixer (TK HOMOMIXER MARK II f model, TOKUSHU KIKA KOGYO CO. LTE).

Further, the composition was prepared according to the above-mentioned method, and the content (% by weight) with respect to specific ingredients was varied according to Table 1 below.

division Ingredients Comparative Example Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Floating Polysorbate 60 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Behenyl alcohol 2.00 2.00 2.00 2.00 2.00 2.00 2.00 To a solution of < RTI ID = 0.0 & 6.50 6.50 6.50 6.50 6.50 6.50 6.50 To a solution of < RTI ID = 4.50 4.50 4.50 4.50 4.50 4.50 4.50 Bishexyloxyphenol methoxyphenyltriazine 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Diethylaminohexoxybenzoylhexylbenzoate 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Cyclopentasiloxane * Cyclohexasiloxane 5.00 5.00 5.00 5.00 5.00 5.00 5.00 Silica 0.70 0.70 0.70 0.70 0.70 0.70 0.70 Water top Purified water to 100 to 100 to 100 to 100 to 100 to 100 to 100 Disodium iodide 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Phenylbenzimidazolesulfonic acid 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Tromethamine 2 2 2 2 2 2 2 Propanediol 7.00 7.00 7.00 7.00 7.00 7.00 7.00 Potassium cetyl phosphate 0.00 1.00 0.00 0.00 1.00 1.00 1.00 Hydroxyethyl methacrylate / sodium acryloyldimethyltaurate copolymer 0.70 0.70 0.70 0.70 0.70 0.70 0.70 Carbomer 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Phenoxyethanol 0.40 0.40 0.40 0.40 0.40 0.40 0.40 Ethylhexyl Glycerin 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Surface treated titanium dioxide Titanium dioxide coated with silica and alumina (TiO ₂ coated with a hydrophilic material, i.e. TiO ₂ for water-dispersible coloring) 0.00 0.00 1.00 0.00 0.00 0.00 0.00 Titanium dioxide coated with aluminum hydroxide and triethoxycaprylylsilane (TiO ₂ coated with a hydrophobic material, i.e., TiO ₂ for oil-dispersive tinting) 0.00 0.00 0.00 1.00 1.00 2.00 3.00

(The values in Table 1 are% by weight)

[Experimental Example 1] Confirmation of formulation stability, ultraviolet blocking power, visible light blocking property and skin tone correction

Using the composition according to the above examples, the actual cosmetic composition and cosmetics were evaluated for their ability to be manufactured, formulation stability, ultraviolet blocking power, and harmful visible light (blue and violet) blocking effect.

The stability of the formulation was evaluated by preparing the actual cosmetic composition (for example, sunscreen product) using the above-mentioned examples, and then determining whether it was separated at -20 °, 5 °, room temperature, 30 ° or 45 ° for 4 weeks, As a result of observation.

The UV protection factor (SPF) was measured according to the ISO method (ISO 24444) and the method for measuring the UV blocking effect. First, 12 subjects were selected for the test purpose through medical examination and skin condition diagnosis. UV irradiation with Multiport Solar UV Simulator (601-300W) was applied to the area where the product was not applied and after 16 ~ 24 hours, (Minimal Erythema Dose, MED) was determined. Each of the samples of the cosmetic composition of Table 1 was applied to the back of the subject at ² mg / cm < 2 > The thickness was uniformly applied to the skin. The MED and SPF of the standard and test composition samples were determined by irradiating ultraviolet light based on the MED of the mordant. The UV blocking index (SPFi) of each subject was calculated according to the general formula 1 and the UV blocking index of the composition sample was determined by arithmetic average value.

[Formula 1]

SPFi = minimum erythema of the applied area

/ Minimal erythema of the area

The protection factor of UVA (PFA) was measured according to the test method described in Japan Cosmetic Industry Association UVA blocking effect measuring method (JCIA, 2012). The standard sample and the cosmetic composition sample of Table 1 were uniformly applied to the back region of the subject in an amount of 2 mg / cm 2 and stabilized for 15 minutes. Then, the ultraviolet ray A was irradiated based on the minimum sustained instant blackening amount of the non- The minimum sustained immediate blackening and PFA of the samples and the test products were determined. The minimum sustained immediate blackening amount is determined, and PFA is calculated by the following formula 2 using the determination value, and the average value is obtained.

[Formula 2]

PFA = MPPD at the site to which the sample was applied / MPPD at the site where the sample was not applied

Herein, MPPD means a minimum sustained immediate blackening amount (Minimal Persistent Pigment Darkening Dose (MPPD)).

In order to confirm the blue light blocking ratio and the violet light blocking ratio of the cosmetic composition prepared according to Table 1, the formulations of the examples and the comparative examples were coated on quartz or band pass filters in an amount of ² mg / cm ² , (380-500 nm) was measured with a SPR-4001 Spectroradiometer (Luzchem, Canada). The blue / violet light wavelength region (380 ~ 500 nm)

In order to test the skin tone correcting effect of the cosmetic composition prepared in accordance with Table 1 above, 10 subjects were selected, the normal sunscreen was applied to the half of the face, and the other half was sunscreen And immediately after application, the presence or absence of skin tone correction was checked and confirmed.

Specific results are shown in Table 2 below.

division Comparative Example Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Availability O O O X O O O Formulation stability Stable for 4 weeks Stable for 4 weeks Powder aggregation - Stable for 4 weeks Stable for 4 weeks Stable for 4 weeks SPF 53 55 - - 60 63 67 PFA 8 9 - - 14 16 19 Violet blocking rate 28 30 - - 60 68 78 Blue blocking rate 23 25 - - 35 38 45 Whether skin tone correction X X O - O O O Other - - - - - - Cloudy

(The values of the violet blocking rate and the blue blocking rate in Table 2 are%)

With regard to whether or not it can be made into cosmetic products (for example, sunscreen products) of cream formulations, all of the compositions were found to be manufacturable except for Example 3. From the stability of the O / W emulsion formulation, it was confirmed that all of the other examples except for Example 2 and Example 3 were stable for more than 4 weeks (i.e., the hydrophobic visible ray blocking agent was stable in a state of being effectively and homogeneously dispersed in the aqueous phase ≪ / RTI > emulsion formulation is maintained). TiO ₂ for water-dispersible coloring, which does not contain potassium cetyl phosphate, In the case of Example 2 containing TiO ₂ , a phenomenon of aggregation of TiO ₂ coated with a hydrophilic (water-dispersible) substance appeared, and the formulation could not be maintained. TiO ₂ for hydrophobic coloring (TiO ₂ coated with a hydrophobic substance) was not uniformly dispersed in the aqueous phase in Example 3 in which potassium cetyl phosphate was not contained, the emulsion stability was not maintained.

In Examples 4 to 6, a hydrophobic visible ray blocking agent (TiO ₂ coated with a hydrophobic substance) (TiO ₂ coated with a hydrophobic substance) to a formulation containing 1% by weight, 2% by weight and 3% by weight of a hydrophobic visible ray blocking agent (hydrophobic material coated with potassium cetyl phosphate Was uniformly dispersed in the aqueous phase to obtain a remarkably excellent effect in terms of formulation stability. In particular, it was confirmed to be superior to Examples 1 and 2 and Comparative Example in terms of blocking harmful visible light. However, When 3 wt% of the light-blocking agent (TiO ₂ coated with a hydrophobic substance) was used, it was found that the feeling of use and consumer satisfaction would be lowered due to excessive white turbidity (accordingly, it is appropriate to use less than 3 wt%). In addition, in Examples 4 to 6, it was confirmed that there was also a skin tone correction effect (skin tone became bright).

[Experimental Example 2] Whether the effect was changed by controlling the content of a specific ingredient

Depending on the content of potassium cetyl phosphate (TiO ₂ coated with hydrophobic material Was fixed to 1% by weight). The formulation stability, ultraviolet blocking effect and harmful visible light blocking effect were measured.

Ingredients Comparative Example Example 7 Example 8 Example 9 Polysorbate 60 1.00 Behenyl alcohol 2.00 To a solution of < RTI ID = 0.0 & 6.50 To a solution of < RTI ID = 4.50 Bishexyloxyphenol methoxyphenyltriazine 3.00 Diethylaminohexoxybenzoylhexylbenzoate 3.00 Cyclopentasiloxane / cyclohexasiloxane 5.00 Silica 0.70 Purified water to 100 Disodium iodide 0.05 Phenylbenzimidazolesulfonic acid 2.00 Tromethamine 2.00 Propanediol 7.00 Potassium cetyl phosphate 0.50 One 1.5 2 Hydroxy ethyl acrylate /
Sodium acryloyldimethyltaurate copolymer 0.70 Carbomer 0.50 Phenoxyethanol 0.40 Ethylhexyl Glycerin 0.05 Titanium dioxide treated with aluminum hydroxide and triethoxycaprylylsilane
(TiO ₂ coated with a hydrophobic substance, that is, TiO ₂ for oil-dispersive coloring) 1.00

(The values in Table 3 indicate weight percentages)

division Comparative Example Example 7 Example 8 Example 9 Availability O O O O Formulation stability 4 weeks stable 4 weeks stable 4 weeks stable 4 weeks stable SPF 54 60 61 60 PFA 12 14 14 14 Violet blocking rate 50 60 60 60 Blue blocking rate 30 35 35 35

(The values of violet blocking rate and blue blocking rate in Table 4 are%)

As a result, when the content of potassium cetyl phosphate increased from 0.5% to 1.0%, the ultraviolet and harmful visible light blocking effect was improved.

The experimental results of Experimental Examples 1 and 2 are believed to be similar when zinc oxide or iron oxide is used instead of the titanium dioxide, and sodium stearoylglutamate or inulin lauryl carbamate is used instead of potassium cetyl phosphate The results of this study are summarized as follows.

In addition, the surface of the coloring component such as titanium dioxide, zinc oxide, and iron oxide may also be a surface-active material such as silicones such as dimethicone, methicone, caprylylsilane, and fluorosilicone, or a mixture of lauroyl lysine, disodium & It is believed that similar results will be obtained when an amino acid derived residue such as steel glutamate or a surface treated with a fluorine-based surface treatment substance is used.

Claims (20)

An oil phase part including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent uniformly dispersed on the water. The cosmetic composition according to claim 1, wherein the surfactant is potassium cetyl phosphate. The cosmetic composition for blocking visible light according to claim 1, wherein the hydrophobic visible ray blocking agent is a hydrophobic surface-treated inorganic powder. 4. The method according to claim 3, wherein the surface treatment is selected from the group consisting of dimethicone, methicone, caprylyl silane with introduced substituent, lauroyl lysine, disodium stearoyl glutamate, sodium myristyl glutamate, silica, alumina, Wherein the cosmetic composition is treated with at least one member selected from the group consisting of water, alcohol, and aluminum hydroxide. The method of claim 3, wherein the inorganic powder is titanium dioxide, micro titanium dioxide (Micro TiO _2), zinc oxide (zinc oxide, ZnO), a micro zinc oxide (Micro ZnO), iron oxide (iron oxide FeO (Ⅱ), Fe _{2 O 3 (ⅲ), Fe 3} O 4 (ⅳ)), aluminum oxide (alumina, Al ₂ O _3), barium sulfate (barium sulphate, BaSO _3), silicon dioxide (silica, SiO _2), talc, kaolin, Seri And at least one member selected from the group consisting of vitamins, antioxidants, antioxidants, antioxidants, antioxidants, antioxidants, antioxidants, antioxidants, vitamins, antioxidants, The cosmetic composition for visible light shielding according to claim 1, wherein the hydrophobic visible light blocking agent is titanium dioxide coated with aluminum hydroxide and triethoxycaprylylsilane. 3. The composition of claim 1, wherein the sunscreen agent is selected from the group consisting of ethylhexylmethoxycinnamate, ethylhexylsalicylate, bishexyloxyphenolmethoxyphenyltriazine, and diethylaminohydroxybenzoylhexylbenzoate At least one cosmetic composition for blocking visible light. The cosmetic composition according to claim 1, wherein the silicone oil is at least one of cyclopentasiloxane and cyclohexasiloxane. The cosmetic composition according to claim 1, wherein the ultraviolet screening agent is at least one of an organic ultraviolet screening agent and an inorganic ultraviolet screening agent. The method of claim 1, wherein the coagulant is selected from the group consisting of carbomer, polyacrylamide, ammonium acryloyldimethylate-vinyl copolymer, xanthan gum, cellulose ether, polyvinyl derivative, alginate, polyacrylate, Wherein the cosmetic composition is at least one water-enhancing agent selected from the group consisting of The cosmetic composition for blocking visible light according to claim 1, wherein the content of the hydrophobic visible light blocking agent is 0.5 to 5% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the content of the surfactant is 0.5 to 2% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the visible light is at least one of a violet light having a wavelength of 380 to 430 nm and a blue light having a wavelength of 430 to 500 nm. The cosmetic composition according to claim 1, wherein the cosmetic composition blocks violetite by 60% or more. The cosmetic composition for visible light shielding according to claim 1, wherein the cosmetic composition comprises at least 35% of blue light. The cosmetic composition according to claim 1, wherein the cosmetic composition is an emulsion or a cream type formulation. The cosmetic composition according to claim 1, wherein the cosmetic composition is an oil-in-water (O / W) emulsion. The cosmetic composition for visible light shielding according to claim 1, wherein the stability of the formulation is maintained at room temperature for 4 weeks or longer. The cosmetic composition according to claim 1, wherein the cosmetic composition is for blocking visible light and simultaneously improving skin tone. An oil phase part including an ultraviolet screening agent and a silicone oil; An aqueous phase comprising at least one selected from the group consisting of a phosphate surfactant, a glutamate surfactant and a carbamate surfactant, and an increasing agent; And a hydrophobic visible light blocking agent homogeneously dispersed on the water, wherein the content of the surfactant is controlled to be 0.5 to 2% by weight based on the total weight of the composition, whereby the formulation stability of the cosmetic composition How to promote.