KR20110101411A - Hydrogel sheet cosmetics with excellent skin adhesion with emulsifier and oil of specific HLB value - Google Patents

Abstract

The present invention relates to a hydrogel sheet cosmetics having an excellent skin adhesive force containing an emulsifier and an oil having a specific HLB value.

The present invention is to solve the technology of containing the oil in the mask sheet composition to prevent the adhesion of the aqueous hydrogel containing the water-soluble active ingredient to the skin, the balanced supply of oil and reduced adhesion due to the oil of the skin itself. do.

HLB is added to hydrophilic and high viscosity hydrogel with surfactant and oil of 1 ~ 10 so that oil is stably dispersed in the hydrogel sheet. The mask sheet excellent in adhesiveness was developed and this invention was reached.

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

Hydrogel sheet in which the oil is dispersed in the dispersion medium of the aqueous hydrogel using a lipophilic surfactant having a HLB of 1 to 10 of the present invention is stable in oil dispersibility alone, the skin adhesion force when attached to the skin This improves and improves the softness of the skin and the persistence of the moisturizing not only by moisturizing with hydrophilic ingredients but also by moving and supplying the dispersed oil in the hydrogel to the skin.

Description

Hydrogel sheet cosmetics of improved skin adhesion containing oil and emulsifier of specific HLB values}

The present invention relates to a sheet-like cosmetics for cosmetic use, which contains a hydrogel containing oil-soluble active ingredients, oils and oil-based ingredients of oil-soluble active ingredients and has excellent moisturizing property and adhesion to skin.

Sheet-shaped pack with hydrogel is applied to the skin and removed to relieve tension, moisturize skin, increase elasticity, reduce fine wrinkles, remove adsorption of waste and contaminants on the skin surface, remove old dead skin cells, remove excess oil Its function of smoothness, psychological stability and nutrition. The sheet-like mask is used in the form of applying a hydrogel to a support such as a nonwoven fabric or a woven fabric. Examples of the hydrogel include polyacrylic acid-based, polyether-based, polyvinyl alcohol-based, cellulose derivative-based, and water-soluble polymers of animal and plant-based extracts, which use crosslinking or by formation of the substance itself.

An example of a method for producing a sheet-like hydrogel is a method of mixing one substance selected from the group consisting of an aqueous solution of fibroin, alginate, cellulose and agar and gelling it with a polyvalent metal.

However, in addition to the natural moisturizing factor, the outermost layer of skin always contains 0.4 ~ 0.05 mg / cm ² of sebum and lipids of sebum and stratum corneum of the stratum corneum. They are a mixture of triglycerides, diglycerides, fatty acids, squalene, wax esters, cholesterol, cholesterol esters, and ceramides to prevent water loss.However, the mask sheet is a hydrophilic hydrogel sheet pack, Due to the cause of the skin adhesion deterioration and the use of water-based hydrogel only lacks the balance of moisture and oil, which is a characteristic of the skin there was a problem of short duration of skin moisturizing and flexibility.

[Documentation of the prior art]

[Document 1] Shigeki Yamashita. Sheet Pack with Water Soluble Polymer, 1999, February, 86-90

[Patent 2] Korean Patent Registration Number and Date 10-0841742-0000 (2008.06.20)

[Reference 3] Mitsui Takeo. New Cosmetics. Assimilation technology. Second edition. 2008.pp. 31 ~ 37

The present invention is to solve the technology of containing oil in the mask sheet composition in order to prevent the adhesion of the aqueous hydrogel containing water-soluble active ingredient to the skin and a balanced supply of oil and reduced adhesion due to the oil of the skin itself. do.

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 oil in an aqueous component, HLB uses 10-20 surfactant. However, when the hydrogel sheet using the surfactant is attached to the skin, the oil is dispersed in the dispersion medium of the aqueous hydrogel so stable that it is difficult to contact and supply the skin. Accordingly, the inventors have repeatedly studied to solve the above problems, and HLB is added to a hydrogel having a high viscosity of 1 to 10 surfactants and oil, and the oil is stably dispersed in the hydrogel sheet and applied to the skin. When attached, it was separated and easy to move the oil to the skin and developed a mask sheet excellent in the skin adhesion to reach the present invention. In addition, by introducing a whitening agent, anti-aging agent, moisturizer, wrinkle improver, keratin improver, etc. in the oil phase or water phase, the functionality is maximized.

The present invention is a hydrogel sheet in which oil is dispersed in an aqueous hydrogel dispersion medium using a lipophilic surfactant having a HLB of 1 to 10, and the sheet alone is stable in oil dispersibility and adheres to the skin when attached to the skin. This improved and moisturizing by hydrophilic ingredients as well as the transfer and supply of the dispersed oil in the hydrogel to the skin improved the skin's flexibility and increased the persistence of the moisturizing.

Hydrogel sheets are attachments used in the treatment of beauty, facial beauty and skin. If necessary, the hydrogel may contain a moisturizer, anti-inflammatory agent, amino acids, vitamins, whitening agent, skin rejuvenating agent, inflammatory agent, skin active ingredient, fragrance, anti-aging agent, moisturizer, wrinkle improver, and keratin improver.

The hydrogel component is water-soluble polymer (agar, glucomannan, guar gum, locust bean gum, carrageenan, polyacrylic acid, polyether, polyvinyl alcohol, polyvinylpyrrolidone, cellulose derivative, polysaccharide derivative, animal or plant extract). Gellan gum, xantham gum, etc.), crosslinking or by using the formation of the substance itself by using one or more kinds or more selected.

In the present invention, the oils include aliphatic hydrocarbons, mono, di, triglycerides, fatty acid esters, cholesterol, cholesterol esters, ceramides, squalene, squalane, carotenoids, higher alcohols, silicone oils, vegetable oils, lanolin, higher fatty acids, One or more mixtures selected from waxes are used.

The moisturizing agent used in the present invention is selected from polyhydric alcohols, polyethers, amino acids, organic acids, urea, monosaccharides to polysaccharides, hyaluronic acid, pyrrolidonecarboxylic acid and salts thereof, lactates, glucosamine, peptides and the like.

Surfactants used in the present invention include alcohol ethoxylates, alkylpolyglycosides, alkylamine ethoxylates, alkanolamides, ethoxylated fatty acid esters, alkylphenolethoxylates, glyceryl in the range of HLB 1-10. Alkyl esters, polyglyceryl alkyl esters, ethoxylated glyceryl esters, ethoxylated sorbitan fatty acid esters, sorbitan alkyl esters, ethylene oxide / propylene oxide copolymers are used either singly or in combination. In addition, the anionic surfactant may be mixed with the above nonionic surfactant for the synergistic effect of the emulsifier.

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 oil and 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% by weight in the total composition. Hydrogel of the present invention is applied to the support layer selected from non-woven fabric, woven fabric, plastic film, etc. 0.4 to 3mm and then cover the hydrogel layer with a protective sheet selected from polyethylene film, polypropylene film, PET film.

100 g of agar, 0.4 g / kappa carrageenan, 0.2 g / konjac 0.2 g, and 0.2 g of manganese were added to water, and the mixture was heated at 70 ° C. for 15 minutes and dissolved in a polyol, a liquid paraffin, and a polyoxyethylene alkyl ether nonionic interface. Add and mix the oil phase which mixed Newcol 2302 (HLB 6.3) of Nippon Emulsifier Co., Ltd. as an active agent, and mix and stir. This mixed dispersion was applied to a release paper with a thickness of 1 mm, and the mesh of 50 mesh was impregnated into the cooled coating liquid. After laminating it with a transparent polyethylene film, it is cut and packaged to a size corresponding to the attachment area of the desired skin.

[Comparative Example]

To 100cc of water, a mixture of agar 0.4g / kappa carrageenan 0.2g / konjac 0.2g / mangan 0.2g was added, heated at 70 ° C for 15 minutes to dissolve, and then applied to a release paper with a thickness of 1 mm and a mesh of 50 mesh to the cooled coating liquid. Impregnate After laminating it with a transparent polyethylene film, it is cut and packed to a size corresponding to the desired attachment area of the skin.

[evaluation]

The evaluation was performed by sensory tests on the faces of five women. The hydrogel sheet made of the comparative example was partially lifted when all five were attached to the face, but the hydrogel sheet completed by the formulation of the example containing the oil phase had no floating effect when all five were attached to the surface of the hydrogel sheet. After 20 minutes of attachment, the skin's moisturizing and softening feeling was noticeably different.

The present invention is applied to the skin after removal of the tension of the skin, skin moisturizing, elasticity, fine wrinkles relief, adsorption removal of waste and contaminants on the skin surface, removal of old keratin, excess sebum, skin smoothness, It is used as a mask sheet for psychological stability and nutrient supply.

Claims (2)

Mask sheet pack containing 0.1 to 5% by weight of a surfactant having an HLB of 1 to 10 as an emulsifier in a mask sheet containing a hydrogel, an aqueous component, an oily component, and a skin active ingredient. In claim 1, the surfactant is used in a single or multiple selection from polyoxyethylene type, polyhydric alcohol ester type, ethylene oxide / propylene oxide block copolymer.