KR101399476B1 - Hydrogel sheet cosmetics of improved skin adhesion containing oil and emulsifier of specific HLB values - Google Patents

Abstract

The present invention relates to a hydrogel sheet cosmetic composition having an excellent HLB value of an emulsifier and an oil-containing skin adhesive force.

The present invention relates to a technique to prevent the adhesion of an aqueous hydrogel containing a water soluble active ingredient to skin and to prevent a balanced skin supply of oil water and a decrease in adhesion due to oil in the skin itself, do.

The hydrophilic and high viscosity hydrogel is added with a surfactant and oil having HLB of 1 to 10 to disperse the oil stably in the hydrogel sheet. When attached to the skin, the oil is separated and easily migrated to the skin, The present inventors have developed a mask sheet excellent in adhesiveness and reached the present invention.

The use of the present invention is a mask sheet cosmetic for the purpose of cleansing and moisturizing the skin.

The hydrogel sheet in which the oil is dispersed in the dispersion medium of the aqueous hydrogel using the lipophilic strong surfactant having the HLB of 1 to 10 according to the present invention has a stable dispersibility of the oil when the sheet alone is used, And not only the moisturization by the hydrophilic component but also the movement and supply of the dispersed oil in the hydrogel to the skin improves the flexibility of the skin and increases the persistence of moisturizing.

Description

[0001] The present invention relates to a hydrogel sheet cosmetic composition containing improved emulsifier and specific HLB values,

The present invention relates to a hydrogel mask sheet pack cosmetic composition containing a hydrogel containing a water soluble active ingredient and an oily component of an oil and an oil soluble active ingredient and having excellent moisturizing and adhesion to the skin.

On a sheet-like pack containing a hydrogel, it is possible to relieve skin tension, skin moisturization, elasticity enhancement, wrinkle reduction, removal of dirt and contaminants from the skin surface, removal of old keratin, removal of excess sebum, The effect of smoothness, psychological stabilizing effect, nutrition supply function. The sheet-like mask is used in the form of a hydrogel coated on a support such as a nonwoven fabric or woven fabric. Examples of the hydrogel include crosslinking of a water-soluble polymer of polyacrylic acid type, polyether type, polyvinyl alcohol type, cellulose induction system, animal or plant extract system, or adhering of the substance itself.

Examples of the production method of the sheet-like hydrogel include a method of mixing a fibroin aqueous solution and a substance selected from the group consisting of alginate, cellulose and agar, and gelling the mixture with a polyvalent metal.

However, in the outermost layer of the skin, there is always 0.4 to 0.05 mg / cm ² of new intercellular lipid of sebum and stratum corneum discharged from the sebaceous glands in addition to natural moisturizing factor components. They are a mixture of triglycerides, diglycerides, fatty acids, squalene, wax esters, cholesterol, cholesterol esters and ceramides to prevent moisture loss of the skin. The mask sheet is a sheet pack of hydrophilic hydrogel, And the use of an aqueous hydrogel only lacks a balance between moisture and oil, which is a characteristic of the skin, and shortens the duration of moisturizing and flexibility of the skin.

[Literature information of the prior art]

[Document 1] Shigeki Yamashita. Sheet pack with water-soluble polymer, 1999, February, pp. 86-90

[Patent Document 2] Korean Patent Registration Number and Date 10-0841742-0000 (June 20, 2008)

[Document 3] Takeo Mitsui. New Cosmetics. Assimilation technology. Second Edition. 2008. 31-37

The present invention relates to a hydrogel mask sheet containing a water-soluble active ingredient and an oil-soluble active ingredient, which can be prepared from a hydrogel mask sheet composition which is easy to be adhered to the skin and balanced against adhesion to the skin, The present invention has been completed.
Accordingly, it is an object of the present invention to provide a hydrogel mask sheet pack composition containing a water-soluble active ingredient and an oil-soluble active ingredient to match the adhesive property and the water content balance to the skin.

HLB stands for hydrophilic lipophilic balance and indicates the degree of affinity for water and oil. The larger the HLB, the stronger the hydrophilicity. In order to disperse the oil in the aqueous component, it is usual to use a surfactant having an HLB of 10 to 20. However, when a hydrogel sheet using such a surfactant is adhered to the skin, the oil is dispersed too stably in the dispersion medium of the aqueous hydrogel, making contact with the skin difficult. As a result, the present inventors have conducted extensive studies to solve the above problems. As a result, the inventors have found that a surfactant and an oil having an HLB value of 1 to 10 are added to a hydrogel having a hydrophilic and high viscosity, and oil is stably dispersed in the hydrogel sheet. The present invention has been accomplished by developing a mask sheet which is separated from the skin and easily transferred to the skin and has excellent skin adhesiveness. In addition, when a whitening agent, an anti-aging agent, a moisturizer, a wrinkle improver, an exfoliation improver or the like is incorporated into oil or water, the functionality is maximized.

The present invention relates to a hydrogel sheet in which an oil is dispersed in a dispersion medium of an aqueous hydrogel using an oleophilic strong surfactant having an HLB of 1 to 10, wherein the dispersibility of the oil is stable when the sheet alone is used, Improvement in the flexibility of the skin and persistence of the moisturizing by the movement and supply of the dispersed oil in the hydrogel not only to moisturization by the hydrophilic component but also to the skin has been increased.

Hydrogel sheets are used for cosmetic, facial and skin treatments. If necessary, the hydrogel may contain, as an active ingredient, a moisturizing agent, an anti-inflammatory agent, an amino acid, a vitamin, a whitening agent, a skin revitalizing agent, a skin irritant, a skin active ingredient, a fragrance, an antioxidant, a moisturizer, a wrinkle improving agent,

The hydrogel component may be selected from the group consisting of polyacrylic acid, polyether, polyvinyl alcohol, polyvinylpyrrolidone, cellulose derivative, polysaccharide derivative, water-soluble polymer (agar, glucomannan, guar gum, locust bean gum, Gellan gum, gum arabic, etc.), crosslinking, or addition of the substance itself, one or more of them may be selected and used.

Examples of the oil in the present invention include aliphatic hydrocarbons, mono-, di- and tri-glycerides, fatty acid esters, cholesterols, cholesterol esters, ceramides, squalene, squalane, carnenoids, higher alcohols, silicone oils, vegetable oils, Wax or a mixture of two or more selected from waxes.

Examples of the moisturizing agent used in the present invention include polyhydric alcohols, polyethers, amino acids, organic acids, ureas, monosaccharides and polysaccharides, hyaluronic acid, pyrrolidone carboxylic acid and salts thereof, lactic acid salts, glucosamine and peptides.

Surfactants used in the present invention include, but are not limited to, alcohol ethoxylates, alkyl polyglycosides, alkylamine ethoxylates, alkanol amides, ethoxylated fatty acid esters, alkylphenol ethoxylates, glyceryl Alkyl esters, polyglyceryl alkyl esters, ethoxylated glyceryl esters, ethoxylated sorbitan fatty acid esters, sorbitan alkyl esters, and ethylene oxide / propylene oxide copolymers. In addition, anionic surfactants may be mixed with the above nonionic surfactants for the purpose of synergistic effect of emulsifiers.

The content of the polymer for hydrogel of the present invention is 0.05 to 20% by weight in the total composition. The content of the oil and the oil soluble active ingredient of the present invention is 0.05 to 10% by weight in the total composition. The content of the surfactant of the present invention is 0.1 to 5 wt% of the total composition. The hydrogel of the present invention is coated with a hydrogel at a thickness of 0.4 to 3 mm on a support layer selected from a nonwoven fabric, a woven fabric, a plastic film and the like, and then the hydrogel layer is covered with a protective sheet selected from a polyethylene film, a polypropylene film and a PET film.

Aqueous mixture of 100 cc of agar, 0.4 g of agar / 0.2 g of konpa carrageenan / 0.2 g of konjac / 0.2 g of konjac, and heated at 70 캜 for 15 minutes to dissolve the water phase were separately mixed with polyol, liquid paraffin, polyoxyethylene alkyl ether non- And an oil phase obtained by mixing Newcol 2302 (HLB 6.3), an active agent of Nippon Oil Emulsion Co., Ltd., is added and mixed and stirred. This mixed dispersion is applied to the release paper in a thickness of 1 mm and the cooled coating liquid is impregnated with a mesh of 50 mesh. This is laminated with a transparent polyethylene film, and cut into a size corresponding to the area of the desired skin to be packed.

[Comparative Example]

To a 100 cc of water was added a mixture of 0.4 g of agar / 0.2 g of kappa carrageenan / 0.2 g of konjac / 0.2 g of konjac, heated at 70 캜 for 15 minutes to dissolve, and then applied to a release paper at a thickness of 1 mm. . This is laminated with a transparent polyethylene film, and cut into a size corresponding to the area of the desired skin to be packed.

[evaluation]

The evaluation was made by a sensory test on the face of five women. The hydrogel sheets prepared in the comparative example had a phenomenon in which all five of them partially swelled when adhered to the face, but all of the hydrogel sheets completed with the prescription of the oil-containing example had no lift- For 20 minutes, it was good that the moisturizing effect of the skin and the feeling of aging were distinct.

The present invention relates to a skin care cosmetic composition for skin care, which comprises a skin care composition which comprises at least one compound selected from the group consisting of a compound of formula (I), a compound of formula It is used as a mask sheet for psychological stabilizing effect and nutrition supply function.

Claims (2)

A mask sheet comprising a hydrogel and a mixed dispersion containing an aqueous component, an oily component and a skin active component is applied to a support layer, and a surfactant having an HLB of 1 to 10 as an emulsifier is contained in an amount of 0.1 to 5% by weight based on the total weight of the composition , And an oily component in an amount of 0.05 to 10% by weight based on the total weight of the composition The composition of claim 1, wherein the surfactant is selected from the group consisting of alcohol ethoxylates, alkyl polyglycosides, alkylamine ethoxylates, alkanol amides, ethoxylated fatty acid esters, alkylphenol ethoxylates, glyceryl alkyl esters, polyglyceryl alkyl Wherein the saccharide is one or more selected from the group consisting of esters, ethoxylated glyceryl acetates, ethoxylated sorbitan fatty acid esters, sorbitan alkyl esters and ethylene oxide / propylene oxide block copolymers.