KR102039953B1 - Anti-dust cosmetic composition with micro bump forming agent - Google Patents

Abstract

The present invention relates to a cosmetic composition for preventing the adsorption of fine dust by forming a fine protrusion structure, and more specifically, by including a fine protrusion donor material in the cosmetic composition to prevent fine dust adsorption on the skin by forming the fine protrusion structure, and furthermore, By a self-cleansing effect relates to a cosmetic composition that can easily remove fine dust from the skin without using a separate cleaning agent.

Description

Anti-dust cosmetic composition with micro bump forming agent

The present invention relates to a cosmetic composition for preventing the adsorption of fine dust by forming a fine protrusion structure, and more specifically, by including a fine protrusion donor material in the cosmetic composition to prevent fine dust adsorption on the skin by forming the fine protrusion structure, and furthermore, By a self-cleansing effect relates to a cosmetic composition that can easily remove fine dust from the skin without using a separate cleaning agent.

Fine dust is a very small substance that is invisible to us. It is a collective name for particulate matter with a diameter of 10 μm or less that floats or strays in the air for a long time. Mainly generated when air pollutants such as automobile exhaust gas and fossil fuels such as coal and petroleum are combusted, and according to the particle size, fine dust (PM ₁₀ ) having a diameter of 10 μm or less and PM 2.5 having a diameter of 2.5 μm or less (PM _2.5 ) Separated by ultra fine dust.

These fine dusts are mixed with air pollutants such as automobile exhaust gas and heavy metals such as copper and lead generated from combustion of smoke and surroundings of factories. Respiratory diseases such as bronchitis, as well as cardiovascular diseases, skin diseases, eye diseases, such as a variety of diseases can be infected. In particular, ultrafine dust is more dangerous because it can penetrate the capillaries of the bronchus or alveoli.

In addition, since the average particle size of the fine dust of about 10 μm or less is small enough to correspond to about one-twelfth of the pore size, it is easily penetrated into the pores and difficult to remove. Once absorbed, the fine dust causes various chemical stimuli on the skin, adversely affecting keratinocytes and lipid membranes and lowering skin immunity, further accelerating skin aging such as acne, dry skin, wrinkles and pigmentation. Therefore, if the skin exposure to the fine dust is not blocked in advance, or if the infiltrated fine dust is not removed cleanly, the skin is likely to cause an inflammatory reaction in the pores.

In addition, in the past, when the fine dust has been riding only in the changing season, it is known that it is occurring everywhere regardless of the season, and when it is known that fine dust occurs even when cooking indoors, various cosmetics have been developed to always block and prevent the fine dust. ought.

Japanese Patent Registration No. 452585 (registered on August 6, 2010) has been published as a prior art with respect to fine dust adsorption cosmetic composition, but such ion repulsion technology using cationic and anionic polymers perfectly adsorbs pollen and fine dust. Since it is difficult to do so, there is a fear of causing skin trouble by adsorption of fine dust.

Thus, the present inventors have made intensive research to overcome the problems of the prior art in the development of a cosmetic composition for preventing the adsorption of fine dust, as a result of forming a skin protective film against fine dust by the formation of fine protrusions, through which fine dust is applied to the skin It was confirmed that the direct adsorption can be prevented. In addition, the present invention confirmed the fact that smooth cleaning was possible by the self-cleaning effect of the structure of the fine protrusions.

Japanese Patent Registration No. 452585

Therefore, the main object of the present invention is to form a fine protrusion structure in the skin when applying the cosmetic composition to prevent the adsorption of fine dust, while the fine dust adsorbed on the skin by the self-cleansing of the fine protrusion structure It is to provide a cosmetic composition that can be easily removed.

The present inventors have completed the present invention from the features of the micro-projection structure present on the surface of the lotus leaf for the development of anti-dust adsorption cosmetic composition. Specifically, the surface of the lotus leaf is composed of a number of fine protrusions, and since these fine protrusions are relatively smaller than the fine dust, the fine dusts do not directly contact the lotus leaf, but are present on the fine protrusions. On the other hand, because the micro-projections of the lotus leaf exhibits superhydrophobic properties due to their structural features, water droplets are present on the micro-projections and thus cannot penetrate into the leaves. The water droplets that do not penetrate into the leaf easily remove the fine dust present on the fine protrusions of the lotus leaf in the process of movement between the water droplets, and this phenomenon is commonly called self-cleansing. It is known that the lotus leaf is always kept clean by this self-cleaning action.

According to one aspect of the invention, the present invention provides a cosmetic composition for preventing the adsorption of fine dust, characterized in that in the cosmetic composition comprising water, oil and surfactant, comprising a fine projection donor as an active ingredient. Here, the water, oil and surfactants only list the components of the water phase and the oil phase of the general cosmetic composition, the feature of the present invention includes a fine projection donor as an active ingredient to prevent fine dust adsorption in the general cosmetic composition Is that.

In the present invention, the fine dust refers to very small particles of several tens of micrometers or less that can float in the air and affect the skin, for example, yellow dust, automobile exhaust, factory smoke, surrounding combustion gas, heavy metals, etc. It is a dust of 10 micrometers in diameter or less.

In the present invention, the micro-projection donor may form a micro-projection structure of a smaller diameter than the fine dust and may be used any material that is not harmful to the skin, but preferably a cosmetic having a diameter of 10 μm or less in average diameter All kinds of powders that can be used in the present invention may be used, and more preferably, any one or more selected from silicon elastomer, zinc oxide, silica, or titanium oxide provides a cosmetic composition for preventing adsorption of fine dust.

In the present invention, the micro-projection donor may form a micro-projection structure smaller than 10 μm in diameter, the size of the fine dust when the cosmetic composition is applied to the skin. In the embodiment of the present invention, the scanning electron microscope (SNE-4500M, Scanning Electron Microscopy, SEC, Korea) was used to confirm the formation of micro-projections in the development of anti-dust adsorption cosmetic composition.

In the present invention, the fine dust adsorption preventing cosmetic composition is to form a fine protrusion on the skin when applying the cosmetics under the influence of the fine protrusions donating material, preferably having a fine protrusion of 0.1 ㎛ to 10 ㎛ or less in size It provides a cosmetic composition for preventing the adsorption of fine dust, characterized in that. The reason why the size of the microprojections is larger than 0.1 μm is that skin toxicity issues for nanomaterials of 0.1 μm or less have recently been raised, mainly in the EU. In addition, the reason why the size of the fine protrusions is 10 μm or less is because the size of the fine dust is 10 μm or less, so that the size of the fine protrusions should be 10 μm in order to prevent the fine dust from directly contacting the skin.

In the present invention, preferably the fine protrusions donor provides a cosmetic composition for preventing adsorption of fine dust, characterized in that the outer shell is hydrophobic. For this purpose, the particles themselves may be used hydrophobic particles or the particles may be coated with a hydrophobic polymer. Due to the hydrophobic nature of the outer surface of the microprojections, water droplets are present on the microprojections, preventing them from penetrating into the skin. The water droplets that do not penetrate into the skin can easily remove the fine dust present on the fine projections during the movement of the water droplets. That is, skin self-cleansing is possible.

In the present invention, the fine protrusions donor forms a fine protrusion structure having a smaller diameter than the fine dust when applied to the skin to prevent adsorption of fine dust to the skin, a separate cleaning agent by the self-cleansing effect It provides a fine dust adsorption preventing cosmetic composition, characterized in that it is easy to remove fine dust from the skin without using. That is, when the micro-projection structure having a smaller diameter than the fine dust is formed on the skin by the micro-projection donor, not only can the micro-dust come into direct contact with the skin, but also the fine dust placed on the micro-projections by the self-cleaning action. Can be easily removed.

In the present invention, it provides a cosmetic composition for preventing adsorption of fine dust, characterized in that containing 2 to 40% by weight of the fine protrusions donor material. If the fine projection donor is contained in less than the above numerical range may be reduced fine dust adsorption effect, if contained above the numerical range may affect the appearance and feel of the formulation.

In the present invention, the cosmetic composition provides a fine dust adsorption preventing cosmetic composition, characterized in that it has an O / W (water-in-oil) to W / O (oil-in-water) emulsion formulation. The O / W (water-in-oil) to W / O (oil-in-water) emulsion formulations may be prepared according to a conventionally known method by mixing a water phase part and an oil phase part used for preparing an emulsion of a general cosmetic. The cosmetic composition of the present invention may have a general formulation of cosmetics such as lotion, skin, lotion, or essence.

The cosmetic composition of the present invention is a component that is formulated in a conventional cosmetic, in addition to the fine protrusions donor for preventing the adsorption of fine dust, for example, fats and oils, hydrocarbons, lead, fatty acids, synthetic esters, alcohols, powders, interfaces Active agents, thickeners, polymer compounds, gelling agents, ultraviolet absorbers, ultraviolet scattering agents, antioxidants, pigments, pigments, preservatives, fragrances, drugs or water may be appropriately selected and used within a range that does not impair the effects of the present invention. .

Examples of the fats and oils include jojoba oil, castor oil, olive oil, soybean oil, palm oil, palm oil, cacao oil, mink oil and turtle oil.

Examples of the hydrocarbons include liquid paraffin, petrolatum, microcrystalline wax, and squalene.

Examples of the lead include beeswax, lanolin, carnauba wax, candelilla wax, and the like.

Examples of fatty acids include myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid, lauric acid, and the like.

Examples of the synthetic esters are isopropyl myristate, isopropyl palmitate, butyl oleate, myristyl acid myristyl, octylate octylate decyl, propylene glycol monostearate, isostearyl lactate, isostearyl malate, and glycerin monostearate Tearyl dimethyl ammonium etc. are mentioned.

The fats and oils, hydrocarbons, lead, fatty acids and synthetic esters are usually combined at a ratio of 0 to 30 w / w% per skin cosmetic.

Alcohols include ethanol, 1,3-butylene glycol, propylene glycol, lauryl alcohol, cetanol, stearyl alcohol, oleyl alcohol, and the like. Alcohols are normally blended at a rate of 0-25 w / w% per skin cosmetic.

As surfactant, polyglycerol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, palm oil fatty acid monoethanolamide, polyoxyethylene hardened castor Free, Sodium Lauryl Sulfate, Isostearic Acid Polyoxyethylene Glyceryl Pyroglutamate, Alkylbenzenesulfonate, Polyoxyethylene Stearyl Ether, Dialkyl Sulfosuccinic Acid, Cetyl Pyridinium Chloride, n-octadecyltrimethyl Ammonium, Monoalkyl Phosphoric acid, N-acylsulfamic acid, N-acylglutamine, sucrose fatty acid esters, polyoxyethylene sorbitan monostearate, polyoxyethylene lauryl ether sulfate, polyoxyethylene reduced lanolin, sugar esters and the like. . Surfactant is normally mix | blended in the ratio of 0-10 w / w% per skin cosmetics.

Examples of the thickener include carboxyvinyl polymer, methyl polysiloxane, dextran, carboxymethyl cellulose, carrageenan, hydroxypropyl methyl cellulose, and the like. The thickener is usually blended at a rate of 0 to 5 w / w% per skin cosmetic.

Examples of the moisturizing agent include glycerin, propylene glycol, 1,3-butylene glycol, pyroglutamic acid, acetylglutamic acid and procyanidin. Moisturizers are typically formulated at a rate of 0-25% per skin cosmetic.

Preservatives include benzoic acid, salicylic acid, dihydroacetic acid or salts thereof, phenols of paraoxybenzoic acid esters, triclosan halocarbon and the like. Preservatives are usually formulated at a rate of 0 to 0.3 w / w% per skin cosmetic.

The fragrance may be used as long as it is usually used in cosmetics.

Examples of the pigment include iron oxide, titanium dioxide, zinc oxide, kaolin and talc. Pigment is normally mix | blended in the ratio of 0-5w / w% per skin cosmetics.

Pharmaceuticals include wheat germ oil, vitamin A, vitamin B2, vitamin E, ascorbic acid-2-magnesium phosphate or sodium, D- pantothenyl alcohol, glycyrrhizinate dipotassium, glutathione, and UV absorbers , Chelating agents, plant extracts, microbial metabolites / extracts, and the like. The agent is usually formulated at a rate of 0 to 5 w / w% per skin cosmetic.

Examples of the water include tap water, mineral water, salt water, seawater, deep sea water, ultrapure water, polar ice derived water, mineral-containing water, purified water, and the like. Water is blended in any ratio.

According to the present invention, by forming a micro-projection structure prevents the adsorption of fine dust on the skin, and also by the self-cleansing effect (cosmetic) that can easily remove the fine dust from the skin without using a separate cleaning agent A composition can be provided. In addition, by forming a micro-projection structure with super hydrophobicity, it prevents direct contact with the skin of fine dust containing contaminants such as fumes of a factory and automobile exhaust gas, and utilizes the self-cleaning effect of the micro-projection structure. Water alone can easily remove fine dust from the skin.

1 is a photograph confirming the micro-projection structure formed by the cosmetic composition of the present invention by a scanning electron microscope.

Hereinafter, the present invention will be described in more detail with reference to Examples. Since these examples are only for illustrating the present invention, the scope of the present invention is not to be construed as being limited by these examples.

Experimental Example 1: Preparation of Comparative Examples and Examples

To prepare a cosmetic composition (emulsification formulation) of Comparative Example 1 and Examples 1 to 5 having the composition (unit: weight%) as shown in Table 1. Comparative Example 1 is a cosmetic composition of an emulsified formulation containing no microprojection donors and Examples 1 to 5 were prepared by mixing the microprojection donors (silicone elastomer). Specifically, the B phase (oil phase part) is heated and dissolved at 70 to 80 ° C, and then gradually added to the A phase (water phase part) at room temperature. At this time, the mixture of phase A and phase B is constantly stirred. Thereafter, the mixture was cooled to 50 ° C., and then the C part (fine protrusion donor) was added, and a preservative was added, followed by cooling and defoaming to prepare each formulation.

Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 A water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount 1,3-B, G 5 5 5 5 5 5 Disodium ID 0.02 0.02 0.02 0.02 0.02 0.02 B oil 10 10 10 10 10 10 Hydrogenated lecithin 0.1 0.1 0.1 0.1 0.1 0.1 DPG 5 5 5 5 5 5 C Silicone elastomer - One 2 5 40 50 D antiseptic Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount

Experimental Example  2: by electron microscope Fine process  Structure observation

The structural analysis of Comparative Example 1, which is a formulation containing no microprojection donor, and Examples 1 to 5, which are formulations containing microprojection donor, were observed using a scanning electron microscope. Since the formation of microprotrusion structures in the skin cannot be measured by an electron microscope, PMMA plates were used. PMMA plate is a substrate used to measure the in vitro sunscreen effect is characterized by simulating the curve of the skin surface. In this experiment, Comparative Examples and Examples were applied on a PMMA plate and then dried naturally, coated with platinum, and subjected to surface observation using an electron microscope.

As a result, it was confirmed that the micro-projections were not formed in the formulation containing the micro-projection donor (Comparative Example 1) or containing 1% or less (Example 1). On the other hand, Examples 2 to 4 sufficiently containing the fine protrusion donor had a fine protrusion structure, and Example 5 containing the excess of the fine protrusion donor was formed in one large film instead of the fine protrusion structure. Confirmed. In addition, in Examples 2 to 4 containing a small amount of the fine protrusions donor material, it was confirmed that the fine protrusions of 10 μm or less on average were formed more densely with increasing content. However, the increase in the amount of the fine protrusions donor decreases the usability of the formulation, making it difficult to apply uniformly to the skin, so in order to effectively block the fine dust, it is advantageous to prepare the formulation to contain an appropriate amount of fine protrusions. Judging.

Experimental Example 3 Effect of Preventing Fine Dust Adsorption by Forming Fine Projection Structure

Experiments on the effect of preventing the adsorption of fine dust according to the degree of formation of the microprojection structure on the surface were performed. In the test method, Comparative Examples 1 to 5 were applied to a PMMA plate using a PMMA plate, followed by air drying, and carbon black was sprayed thereon. Evaluation method was carried out by visual evaluation by 10 professional panelists. The evaluation method means that the lower the degree of adsorption of carbon black on the basis of 10 points, the higher the score and effectively prevent the adsorption of fine dust.

Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Panel Rating Average (n = 10) 5.5 5.7 7.6 8.0 9.5 6.0

As can be seen in Table 2, the higher the content of the fine protrusions donor within a certain range, the better the adsorption prevention effect of the fine dust (Examples 2 to 4). However, when there is no fine protrusion donor (Comparative Example 1) or when there are few fine protrusion donors (Example 1), it was found that the effect of preventing fine dust adsorption was insignificant. On the other hand, when the micro-protrusion donor material is excessively contained (Example 5), it was confirmed that the effect of preventing the adsorption of fine dust rather deteriorated.

Experimental Example 4: Self-cleaning effect of the fine protrusions

In order to confirm the fine dust self-cleaning action of the formulation containing the fine protrusion donor, carbon black having a surface potential and size similar to that of fine dust was used as a fine dust replacement material. In order to perform the self-acting effect experiment, Comparative Example 1, which does not contain the microprojection donor, and Examples 1 to 5, which differ in their content, are uniformly applied to the PMMA plate, and then naturally dried, and carbon black is used. Sprayed on. After dropping a certain amount of distilled water on the sprayed carbon black, the PMMA plate was tilted to observe the effect of self-cleaning by the microprojections. Evaluation of the microprotrusion self-cleaning effect was carried out by visual evaluation by 10 professional panelists. The evaluation method has a high score as the degree of desorption of carbon black is high in distilled water washing process based on 10 points, which means that fine dust can be effectively removed by the self-cleaning action of the fine protrusions.

Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Panel Rating Average (n = 10) 4.1 4.3 8.0 8.5 9.6 4.7

As can be seen in Table 3, the higher the content of the fine protrusions donor material within a predetermined range, the higher the self-crystallization effect caused by the fine protrusions. This means that the higher the content of the fine protrusions donor material, the finer fine protrusion structures are formed, and thus, fine dust is not directly adsorbed on the surface, but is present on the fine protrusions, and thus, the fine dust is easily washed by distilled water. Once fine dust is adsorbed on the skin, it is difficult to remove it without a face wash, and thus, it is determined that the fine dust can be effectively blocked and cleaned by using the cosmetic composition containing the fine protrusion donor.

Claims (7)

Cosmetic composition for preventing adsorption of fine dust, characterized in that it comprises a fine protrusions donor which is a powder usable in cosmetics having an average diameter of 0.1 ㎛ to 10 ㎛ as an active ingredient, and contains 2 to 40% by weight of the fine protrusions donor . delete The method of claim 1, wherein the fine projection donor is a fine dust adsorption preventing cosmetic composition, characterized in that any one or more selected from silicon elastomer, zinc oxide, silica, or titanium oxide. The cosmetic composition for preventing adsorption of fine dust according to claim 1, wherein the micro-projection donor is hydrophobic in its outer shell. The method of claim 1, wherein the fine protrusions donor forms a fine protrusion structure having a smaller diameter than the fine dust when applied to the skin to prevent adsorption of fine dust to the skin, and separate by the self-cleansing effect A fine dust adsorption preventing cosmetic composition, characterized in that the fine dust can be easily removed from the skin without using a cleaning agent. delete According to claim 1, wherein the cosmetic composition is fine dust adsorption preventing cosmetic composition, characterized in that it has an O / W (water-in-oil) to W / O (in-oil) emulsion formulation.

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