KR101905508B1 - Pack composition for skin protecting and pack for skin protecting - Google Patents

Abstract

The present invention relates to a pack composition for skin protection comprising a first agent in which one or two or more kinds of fine powder selected from carbonates are dispersed in a hydrophilic polymer aqueous solution, and a second agent which is an aqueous solution containing organic acid; and to a pack for skin protection with pores manufactured by being applied to skin.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a skin protective pack composition,

The present invention relates to a skin protection pack composition and a skin protection pack which can protect skin from ultraviolet rays.

In recent years, as people's interest in the skin has increased, there have been increasing instances of treating scars such as acne by laser dermatology in the dermatology department in order to make clean skin. Laser peeling is mainly used for the treatment of scars and wrinkles caused by acne or chickenpox. The principle of treatment is to apply laser beam to the skin with a degree of burning exactly one, so that new tissue grows in the dermis layer. Erbium laser and carbon dioxide laser are used for laser peeling. Carbon dioxide gas lasers have a lot of heat damage and cause a lot of damage to the surrounding tissue. As such, skin that is weakened by heat damage may become more sensitive to ultraviolet exposure after the procedure.

In general, ultraviolet rays contained in sunlight easily penetrate into human skin. When ultraviolet rays are excessively irradiated to skin, UV-B, which is ultraviolet ray having a wavelength of 280 to 320 nm penetrates into the epidermis, causing erythema, freckles and edema. UV-A, which is a UV ray having a wavelength of 320 to 400 nm penetrates into the dermis Thereby promoting skin cancer, wrinkles and melanin formation, thereby causing various skin diseases, skin irritation, and aging. For this ultraviolet screening, consumers are demanding not only to effectively block ultraviolet rays but also to develop ultraviolet screening products that are aesthetically satisfactory when applied to the skin.

In order to solve this problem, sunscreen such as sun cream is applied to the face before outdoor activities. However, it is difficult to solve the problem and there is a limitation in blocking the ultraviolet rays. Also, there is a problem of applying the ultraviolet screening agent at a predetermined time interval In most cases, after one application, the sunscreen agent is not applied again, so that it is not possible to prevent burns or stains caused by ultraviolet rays.

In addition, ultraviolet ray scattering agents that use an inorganic material such as titanium dioxide to physically scatter and reflect ultraviolet rays to prevent penetration of ultraviolet rays into the skin, that is, inorganic ultraviolet ray blocking agents, and organic substances, An ultraviolet absorber that extinguishes penetration of ultraviolet rays into the skin by an ultraviolet absorber, that is, an organic ultraviolet absorber, and they are usually used in combination. The ultraviolet light scattering agent, which is an inorganic sunscreen agent, is excellent in blocking action and has no side effects such as contact dermatitis. However, since it is opaque, it is disadvantageous in that it is not well- Such ultraviolet screening agents are opaque substances which reflect or disperse ultraviolet rays and visible rays, such as titanium dioxide and zinc oxide. They can be used for the purpose of preventing the stain caused by ultraviolet rays or deterioration of freckles, Is dissatisfactory. On the other hand, the ultraviolet absorber, which is an organic UV-blocking agent, is well-known since it is transparent after being applied to the skin, but if it is compounded in large quantity, it may cause contact dermatitis.

Accordingly, there is a desperate need for a product which can protect the skin from external harmful environment and cut off the ultraviolet ray at the cosmetic level and to be able to perform external activities after the skin treatment.

In order to solve the above-mentioned problems, the present invention provides a method for preparing a hydrophilic polymer, which comprises using a first agent in which one or two or more fine powders selected from carbonates are dispersed and a second agent in an aqueous solution containing an organic acid, The present invention also provides a skin protection pack composition containing the same.

Another object of the present invention is to provide a skin protection pack comprising a hydrophilic polymer having pores after spraying a second agent, which is an aqueous solution containing an organic acid, onto the skin to which the first agent is applied.

It is also an object of the present invention to provide a skin protection pack which not only protects the skin which has weakened after the skin treatment from ultraviolet rays but also protects the skin from bacteria and has excellent air permeability and oxygen can be delivered to the skin.

The skin protection pack composition of the present invention may comprise a first agent in which one or two or more fine powders selected from carbonates are dispersed in a hydrophilic polymer aqueous solution, and a second agent which is an aqueous solution containing an organic acid.

The fine powder may be any one or a mixture of two or more selected from water-insoluble carbonates.

The fine powder may have an average particle diameter of 10 nm to 1 탆.

The hydrophilic polymer may be any one or a mixture of two or more selected from an acrylic polymer, a vinyl alcohol polymer, a vinyl pyrrolidone polymer, a cellulose derivative, an alkylene oxide polymer, and a polysaccharide.

The organic acid may be any one or a mixture of two or more selected from citric acid, tartaric acid, malic acid and succinic acid.

The hydrophilic polymer and the fine powder may be contained in a weight ratio of 1: 0.01 to 0.2.

The first agent may further comprise any one or a mixture of two or more selected from a sunscreen agent and a natural germicide.

The skin protection pack of the present invention is a skin protection pack comprising a hydrophilic polymer having pores, wherein the pores have an average pore size of 10 nm to 1 탆 and a porosity of 30 to 80%.

The pores may be formed by spraying a second agent, which is an aqueous solution containing an organic acid, on a skin coated with a first agent in which one or two or more fine powders dispersed in a hydrophilic polymer aqueous solution are dispersed.

The skin protection pack may have a ultraviolet transmittance of 10% or less and a visible light transmittance of 80% or more.

The skin protection pack composition according to the present invention uses a first agent in which one or two or more fine powders selected from carbonates are dispersed in a hydrophilic polymer aqueous solution and a second agent which is an aqueous solution containing an organic acid, There is an advantage of being able to perform external activities after application.

In addition, a second agent, which is an aqueous solution containing an organic acid, is sprayed onto the first agent coated on the skin and dried to form pores in the hydrophilic polymer, thereby reducing the ultraviolet transmittance, The oxygen can be transferred to the reaction chamber.

In addition, it has an advantage that it can protect the skin from bacterium as well as protecting ultraviolet rays from weakened skin after the skin treatment.

Hereinafter, the skin protection pack composition and the skin protection pack according to the present invention will be described in more detail with reference to the following examples. It should be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In order to accomplish the above object, the present invention relates to a skin protective pack composition and a skin protective pack.

The present invention will be described in more detail.

The skin protection pack composition of the present invention may comprise a first agent in which one or two or more fine powders selected from carbonates are dispersed in a hydrophilic polymer aqueous solution, and a second agent which is an aqueous solution containing an organic acid.

The skin protection pack composition of the present invention can protect the weakened skin after skin treatment from skin damage due to ultraviolet rays and further improve the recovery of damaged skin. The skin protection pack composition of the present invention may be prepared by applying a first agent in which one or two or more fine powders selected from carbonates are dispersed in an aqueous solution of a hydrophilic polymer to the skin, 2 can be used by spraying. The skin protection pack containing the hydrophilic polymer having pores is produced by applying the composition on the skin and drying, and ultraviolet scattering is caused by the fine pores, thereby reducing ultraviolet transmittance and transmitting visible light to improve transparency . With such an effect, the skin can be protected from ultraviolet rays and can have an external appearance capable of external action even after application to the skin.

According to one aspect of the present invention, the hydrophilic polymer is a water-soluble polymer that can be dissolved in water, and may be a harmless polymer that is not stimulated to the skin when it is applied to the skin. Preferably, it may be any one or a mixture of two or more selected from, for example, an acrylic polymer, a vinyl alcohol polymer, a vinyl pyrrolidone polymer, a cellulose derivative, an alkylene oxide polymer and polysaccharides. For example, the acrylic polymer may be selected from polyacrylamide, polymethacrylate, polyethylacrylate, polyacrylate, sodium polyacrylate, and acrylic acid-methacrylic acid copolymer. The vinyl alcohol polymer may be selected from polyvinyl alcohol, polyvinyl acetate, polyvinyl acetate-polyvinyl alcohol copolymer, and the like. The cellulose derivative may be selected from cellulose, methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, cellulose acetate and cellulose acetate propionate. The vinylpyrrolidone polymer may be selected from copolymers comprising polyvinylpyrrolidone and vinylpyrrolidone. The alkylene oxide polymer may be selected from polyethylene oxide, polyethylene propylene glycol, polyethylene glycol diacrylate, and polyethylene glycol dimethyl ether polypropylene oxide. The polysaccharide may be any one or a mixture of two or more selected from alginate, starch, xanthan gum, gellan gum, gelatin, chitosan, hyaluronic acid, dextran and chitosan, but is not limited thereto.

According to one embodiment of the present invention, the hydrophilic polymer may have a weight average molecular weight of 1,000 to 1,000,000 g / mol, and preferably a weight average molecular weight of 1,000 to 100,000 g / mol, but is not limited thereto. When the above-mentioned molecular weight is obtained, it is preferable to dissolve in water to prepare a homogeneous aqueous solution.

According to an embodiment of the present invention, the hydrophilic polymer aqueous solution is not particularly limited, but may contain 10 to 50% by weight of the hydrophilic polymer based on the total weight of the aqueous hydrophilic polymer solution. And preferably 10 to 40% by weight of the hydrophilic polymer. When it is included as described above, it is preferable that it has a viscosity that can be adhered to the skin when applying the skin.

According to an embodiment of the present invention, the fine powder may be any one or a mixture of two or more selected from carbonates. Preferably, the fine powder may be any one or a mixture of two or more selected from water-insoluble carbonates. It can be dispersed in powder form on an aqueous solution. Specific examples thereof may be any one or a mixture of two or more selected from calcium carbonate, magnesium carbonate and the like. Since the fine powder is uniformly dispersed in the hydrophilic polymer, it can be removed from the hydrophilic polymer by reacting with the organic acid of the second agent, and pores can be formed in the place where the fine powder is located.

According to an embodiment of the present invention, the fine powder may have an average particle diameter of 10 nm to 1 μm, and preferably an average particle diameter of 10 to 500 nm. The above-mentioned average particle diameter is preferable because it can be uniformly dispersed without causing precipitation in the aqueous hydrophilic polymer solution. Also, when the organic acid is removed by the second organic acid, micropores similar to the average particle size can be formed, thereby inducing scattering of ultraviolet rays and having a low ultraviolet transmittance.

According to an embodiment of the present invention, the fine powder may be prepared by pulverizing or crushing the fine powder to have the average particle diameter. The pulverization or crushing method is not particularly limited, but it may be pulverized or crushed by various methods such as a ball mill, a planetary mill or a jet mill.

According to one embodiment of the present invention, the hydrophilic polymer and the fine powder may be contained in a weight ratio of 1: 0.01 to 0.2, preferably 1: 0.05 to 0.15. When such a skin protection pack is included, uniformly dispersed pores can be provided in the skin protection pack, and ultraviolet ray scattering can be efficiently induced to reduce ultraviolet ray transmittance.

According to an embodiment of the present invention, the organic acid may be any one or a mixture of two or more selected from the group consisting of citric acid, tartaric acid, malic acid, and succinic acid. When the organic acid is included, it is preferable to decompose the fine powder of the first agent with weak alkalinity to form pores at the position where the fine powder is dispersed in the hydrophilic polymer. In addition, the organic acid has an effect of regenerating a new skin and has a sterilizing and disinfecting effect, so that even if it remains in the skin protection pack composition, the organic acid can exhibit a blocking effect from invasion of bacteria. In addition, the organic acid is preferable because it can simultaneously exhibit effects such as skin whitening, anti-aging effect, and epidermal cell activation.

According to one embodiment of the present invention, the second agent is not particularly limited, but it may contain 1 to 30% by weight of organic acid based on the total weight of the aqueous solution containing the organic acid. And preferably 5 to 20% by weight of an organic acid. When it is included in the above range, the reaction can be induced by targeting the fine powder, and skin irritation and deterioration of the physical properties of the hydrophilic polymer due to the excess amount of the organic acid can be prevented.

According to one embodiment of the present invention, the first agent may further comprise any one or a mixture of two or more selected from a sunscreen agent and a natural germicide.

In the specification of the present invention, the term " ultraviolet screening agent " may include any component capable of blocking ultraviolet rays reaching the skin through a mechanism such as scattering, reflecting, or absorbing ultraviolet rays. For example, Sunscreens, and mixtures thereof. An organic sunscreen agent is preferred for transparency.

The ultraviolet screening agent may further include ultraviolet screening agents to improve the ultraviolet screening effect. The ultraviolet screening agents may be selected from the group consisting of benzoyl compounds, benzoate compounds, benzophenone compounds, Based compound, a salicylate-based compound, a sulfate-based compound, and a cyanate-based compound. More specific examples include diethylaminohydroxybenzoylhexylbenzoate, homosalate, ethylhexylsalicylate, phenylbenzimidazolesulfonic acid, octocrylene, ethylhexylmethoxycinnamate, ethylhexyl palmitate, Methylbenzylidene camphor, isoamyl-p-methoxy cinnamate and bis-ethylhexyloxyphenol methoxyphenyltriazine glyceryl paraben, drometrizolisiloxane, drometrizole, dipaloyl tri Diethylphenyl dibenzimidazole tetrasulfonate, diethylhexylbutamidotriazone, di-methoxy cinnamate, a mixture of rosun and dihydroxyacetone, a mixture of methylenebis-benzotriazolyltetramethyl Butylphenol, 4-methylbenzylidene camphor, menthyl anthranylate, benzophenone-3 (oxybenzone), benzophenone-4, benzophenone-8 (dioxyphenylbenzene), butylmethoxydibenzoylmethane, , Ethyl dihydroxypropyl paraben, octocrylene, ethylhexyldimethylphenyl, ethylhexylmethoxycinnamate, ethylhexyltriazone, isoamyl-p-methoxycinnamate, polysilicon-15 (dimethicidoethylbenzal Malate), terephthalylidene dicam persulfonic acid and its salts, thiai-salicylate and aminobenzoic acid (parabe), and the like, but the present invention is not limited thereto.

The content of the ultraviolet screening agent is not particularly limited, but may be 0.01 to 5 parts by weight, preferably 0.01 to 1 part by weight, based on 100 parts by weight of the skin protection pack composition.

The natural germicide may be further added to protect the skin from germs invading the weakened skin. Specific examples of the germicide include extracts of antimicrobial agents selected from ginseng, garlic, bagasse, omija and sancho, hinokitiol, triclosan , Trichlorohydroxydiphenyl ether, crohexidine gluconate, phenoxyethanol, resorcin, isopropylmethylphenol, azulene, salicylic acid, chinphyllithion, benzalkonium chloride, photosensitizer 301, mononitro Acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid, acetic acid and acetic acid and the like.

The content of the natural germicide is not particularly limited, but may be 0.01 to 5 parts by weight, preferably 0.01 to 1 part by weight, based on 100 parts by weight of the skin protection pack composition.

The skin protective pack composition of the present invention is not limited in the average thickness upon application of the skin, but may be applied in the range of 10 to 700 占 퐉 in order to improve transparency. Preferably 10 to 500 탆, but is not limited thereto.

In addition, the skin protection pack composition may contain various additives such as thickeners, antioxidants, stabilizers, perfumes, pigments, or preservatives which are conventionally used in the art depending on the purpose of the skin protection pack composition within a range not lowering formulation stability and skin safety And the like.

The skin protection pack of the present invention will be described in detail.

The skin protection pack of the present invention is a skin protection pack comprising a hydrophilic polymer having pores, wherein the pores have an average pore size of 10 nm to 1 탆 and a porosity of 30 to 80%. Preferably, the pores may have an average pore of 10 to 500 nm and a porosity of 30 to 60%. When the pore size and the porosity are as described above, ultraviolet scattering is induced to reduce the ultraviolet ray transmittance and the oxygen permeability is excellent, so that oxygen is supplied smoothly to the skin.

The skin protection pack of the present invention is applied to weakened skin after the skin treatment to form ultraviolet rays scattered by the pores formed in the hydrophilic polymer, thereby reducing the ultraviolet transmittance and minimizing the exposure to ultraviolet rays, thereby protecting the skin from damage. Furthermore, it is possible to improve the recovery of damaged skin, and visible light can be transmitted to improve transparency. In addition, unlike opaque packs that are transparent due to transparency even after application to the skin, external activity is possible because there is no resistance to appearance.

The pores of the skin protection pack of the present invention may be obtained by spraying a second agent, which is an aqueous solution containing an organic acid, on a skin coated with a first agent in which one or two or more fine powders selected from carbonates are dispersed And may be formed by drying. The fine powder dispersed in the first agent reacts with the organic acid of the second agent, and the fine powder is decomposed and removed to form pores in the space where the fine powder is located. When the skin protection pack composition is coated on the skin and dried, a skin protection pack containing a hydrophilic polymer having pores is produced. Ultrathin scattering of ultraviolet rays is caused by the fine pores, thereby reducing the transmittance of ultraviolet rays. Whereby transparency can be improved. With such an effect, the skin can be protected from ultraviolet rays and can have an external appearance capable of external action even after application to the skin.

The skin protection pack of the present invention has excellent transparency and may have an average thickness of 5 to 500 탆 in order to protect the skin with sufficient ultraviolet shielding. Preferably 5 to 200 占 퐉, but it is not limited thereto.

The skin protection pack of the present invention may have a ultraviolet transmittance of 10% or less and a visible light transmittance of 80% or more, preferably a ultraviolet transmittance of 9.5% or less and a visible light transmittance of 85% %, More preferably, a ultraviolet transmittance of 9% or less and a visible light transmittance of 90% or more. When the above-mentioned physical properties are applied to weakened skin, it can have an excellent ultraviolet ray blocking rate and is excellent in transparency.

Hereinafter, the skin protection pack composition and the skin protection pack according to the present invention will be described in more detail with reference to the following examples. It should be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In addition, the unit of the additives not specifically described in the specification may be% by weight.

[Example 1]

After completely dissolving polyvinyl alcohol (PVA, weight average molecular weight 31,000-50,000 g / mol, 98-99% hydrolyzed, Sigma-aldrich) in water at 40 ° C at 80 ° C, 100 weight parts of the polyvinyl alcohol aqueous solution , 5 parts by weight of calcium carbonate particles pulverized to a size of 100 nm by a ball mill were dispersed to prepare a first agent.

Citric acid was dissolved in water to a concentration of 40% by weight to prepare a second agent.

The first agent was applied to the skin, the second agent was sprayed onto the first agent, and dried to prepare a skin protection pack.

[Example 2]

In the same manner as in Example 1, except that the above-mentioned calcium carbonate particles were replaced with magnesium carbonate by a ball mill to a size of 100 nm.

[Example 3]

In the same manner as in Example 1, except that the calcium carbonate particles were pulverized to a size of 3 mu m.

[Example 4]

Except that tartaric acid was used instead of citric acid in Example 1 above.

[Example 5]

In the same manner as in Example 1, except that chitosan was used instead of polyvinyl alcohol.

[Example 6]

Except that 0.5 part by weight of diethylaminohydroxybenzoylhexyl benzoate and 0.5 part by weight of hinokitiol were added to the first agent in Example 1 above.

[Comparative Example 1]

Except that the second agent was not used in Example 1 above.

[Comparative Example 2]

Except that zinc oxide was used in place of the calcium carbonate particles in Example 1. The results are shown in Table 1. < tb > < TABLE >

[Experimental Example 1] Measurement of pore size and porosity

The pore size and porosity of the packs of Examples and Comparative Examples were analyzed using Porosimeter (Pore master, Quantachrome), and the results are shown in Table 1.

Average pore size (占 퐉) Porosity (%) Example 1 0.105 47 Example 2 0.102 48 Example 3 3.091 55 Example 4 0.098 49 Example 5 0.101 48 Example 5 0.103 50 Comparative Example 1 0.019 5 Comparative Example 2 0.017 One

As shown in Table 1, it was confirmed that the skin protection pack of the present invention had an average pore size according to the fine powder of the first agent and an excellent porosity due to uniform dispersion. In Comparative Example 1, it can be seen that by using the second agent, the fine powder of the first agent can be decomposed to form pores. In the case of other inorganic substances such as zinc oxide, which is not a carbonate, It was confirmed that pore formation was difficult.

[Experimental Example 2] Measurement of light transmittance.

The light transmittance was measured by using TOPCON TM-2, and the light transmittance was measured at UV-B, UV-A and visible light areas at once. To improve the accuracy of the experiment, Respectively. The UV-A ranges from 320 to 400 nm, the UV-B ranges from 290 to 320 nm, and the visible range is from 430 to 700 nm.

The packs of the above Examples and Comparative Examples were coated on a glass substrate, dried and measured, and are shown in Table 2.

Ultraviolet A (UV-A)
Average transmittance (%) Ultraviolet B (UV-B)
Average transmittance (%) Visible ray
Average transmittance (%) Example 1 8.1 1.4 90.8 Example 2 8.3 1.5 90.1 Example 3 15.8 6.5 89.8 Example 4 8.8 1.6 90.5 Example 5 8.6 1.4 90.9 Example 6 7.7 1.0 90.1 Comparative Example 1 26.7 15.5 74.8 Comparative Example 2 25.6 14.1 73.1

As shown in Table 2, it was confirmed that the skin protection pack of the present invention had a low transmittance of ultraviolet ray A and ultraviolet ray B, excellent ultraviolet shielding effect, excellent visible light transmittance, and transparency. Furthermore, when the average particle size of the fine powder is 10 nm to 1 탆, it can be confirmed that the ultraviolet shielding effect is more excellent. Further, it was confirmed that when the composition further contains an ultraviolet screening agent and a natural disinfectant, the ultraviolet screening effect is further improved. In Example 3, transparency was excellent, but scattering of ultraviolet light was reduced as large pores were formed, and thus the transmittance was slightly increased.

In Comparative Example 1, although the fine powder itself had an ultraviolet shielding effect, the fine powder was not removed, the transparency was poor, the ultraviolet scattering effect due to the pores was not exhibited, and the ultraviolet transmittance was high. In Comparative Example 2, as in Comparative Example 1, although the fine powder itself had an ultraviolet shielding effect, the fine powder was not removed, the transparency was poor, the ultraviolet scattering effect due to pores was not exhibited, and the ultraviolet ray transmittance was high .

[Experimental Example 3] Oxygen permeability

Oxygen permeability (Dk / t) was measured using ISO 18369-4: 2006 (Ophthalmic Polarographic method). A heated box was placed in a general incubator (General Incubator, LIB-030M, Labtech, Korea) to maintain the temperature at 35 ° C ± 0.5 ° C. Respectively. The thickness of the central portion of the contact lens was measured using an electronic thickness gauge (Electronic Thickness Gauge), and the Dk at the center was obtained by the calculation formula using the measured Dk / t. Dk, which is a numerical value of oxygen permeability, was calculated according to the following equation (1). The experimental and comparative packs used in the experiments were stored in standard saline solution (0.90% sodium chloride solution) 24 hours before the minimum test and equilibrated for at least 2 hours at the test temperature, and the current values were measured and shown in Table 3.

[Equation 1]

Thickness (㎛) Current (mA) Dk / t Dk Example 1 87 3.12 10.12 32.11 Example 2 82 3.10 10.01 31.78 Example 3 101 3.02 10.55 33.56 Example 4 91 3.06 10.11 30.12 Example 5 86 3.21 10.01 31.01 Example 6 88 3.20 10.00 30.98 Comparative Example 1 88 3.07 4.5 11.76 Comparative Example 2 85 3.11 4.1 11.98

As shown in Table 3, it was confirmed that the skin protection pack of the present invention had uniformly distributed nano-sized pores, and thus had excellent oxygen permeability.

In Comparative Example 1, the fine powder was not removed and a passage through which oxygen could permeate could not be secured, so that it was confirmed that the oxygen transferring power to the skin was insignificant. In Comparative Example 2, as in Comparative Example 1, the fine powder was not removed, and a passage through which oxygen could permeate could not be secured, so that it was confirmed that the oxygen transfer ability to the skin was insignificant.

[Experimental Example 4] Inhibitory effect on erythema formation upon UV irradiation

A value was calculated using a color difference meter (Chromameter CR 300, Minolta).

Ten healthy women (mean age 31 years) were irradiated with ultraviolet rays at 0.88 J / cm 2, once / once a day, on the upper arm of the subject. Each of the test sites was coated with the example and the comparative example twice a day for one day and for 14 days to obtain a value of a, which is the difference between a value before application and a value after passage of time, according to the following equation The results are shown in Table 4.

&Quot; (2) "

(%) = (A value before coating-a value after coating) / a value before coating x 100

Reduction effect of erythema formation (%) Example 1 95 Example 2 94 Example 3 89 Example 4 92 Example 5 91 Example 6 96 Comparative Example 1 76 Comparative Example 2 69

As shown in Table 4, the skin protection pack of the present invention is excellent in ultraviolet ray shielding effect, so that skin damage caused by weakened skin can be prevented, and skin irritation can be prevented.

In Comparative Examples 1 and 2, fine powder was not removed, skin irritation was caused according to the fine powder, and erythema formation occurred.

As described above, the skin protection pack of the present invention is applied to weakened skin after skin treatment and dried to have pores formed in the hydrophilic polymer, thereby causing scattering of ultraviolet rays, thereby reducing ultraviolet transmittance and minimizing exposure to ultraviolet rays, . Furthermore, it is possible to improve the recovery of damaged skin due to skin protection, and visible light can be transmitted to improve transparency. In addition, unlike a pack which is opaque due to its transparency even after application to the skin, it can be used in external activities because it has no objection to external appearance, thus preventing skin irritation caused by external environment.

As described above, in the present invention, the skin protection pack composition and the skin protection pack have been described through the specified matters and the limited embodiments. However, the present invention is provided for better understanding of the present invention. It is to be understood that the invention is not limited to those precise embodiments, and various modifications and changes may be made thereto by those skilled in the art.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

Claims (10)

Wherein the hydrophilic polymer and the micropore-forming fine powder are contained in a ratio of 1: 0.01 to 0.2: 1, and the hydrophilic polymer and the fine pore-
A skin protective pack composition comprising a second agent which is an aqueous solution containing an organic acid. The method according to claim 1,
Wherein the micropore-forming fine powder is any one or a mixture of two or more selected from water-insoluble carbonates. The method according to claim 1,
Wherein the fine pore-forming fine powder has an average particle diameter of 10 nm to 1 占 퐉. The method according to claim 1,
Wherein the hydrophilic polymer is any one or a mixture of two or more selected from an acrylic polymer, a vinyl alcohol polymer, a vinyl pyrrolidone polymer, a cellulose derivative, an alkylene oxide polymer, and a polysaccharide. The method according to claim 1,
Wherein the organic acid is any one or a mixture of two or more selected from citric acid, tartaric acid, malic acid and succinic acid. delete The method according to claim 1,
Wherein the first agent further comprises any one or a mixture of two or more selected from an ultraviolet screening agent and a natural germicide. A skin protection pack comprising a hydrophilic polymer having pores,
The pores are formed by spraying a second agent, which is an aqueous solution containing an organic acid, on a skin coated with a first agent in which one or two or more fine pore-forming fine powders selected from carbonates are dispersed in an aqueous solution of a hydrophilic polymer, followed by drying ,
The first hydrophilic polymer and the fine pore-forming fine powder are contained in a weight ratio of 1: 0.01 to 0.2,
Wherein the pores have an average pore size of 10 nm to 1 탆 and a porosity of 30 to 80%. delete 9. The method of claim 8,
Wherein the skin protection pack has a ultraviolet transmittance of 10% or less and a visible light transmittance of 80% or more.