KR20190034753A - A porous hydrogel mask pack - Google Patents

Abstract

The present invention relates to a porous hydrogel mask pack with improved moisturizing properties and usability. The porous hydrogel mask pack comprises: a hydrogel sheet layer including a foaming agent; and a cosmetic composition applied on the hydrogel sheet layer.

Description

A porous hydrogel mask pack (A POROUS HYDROGEL MASK PACK)

The present invention relates to a hydrogel mask pack having increased moisture retention and usability.

In addition to basic aging factors, modern humans are experiencing severe skin damage due to contaminated external environment, stress in daily life, and increased use of makeup products. To improve this, various skin care products such as lotion, cream, essence, and dermatological treatment are utilized. However, general skin care products have limited skin penetration due to the nature of the skin tissue, and it is difficult to expect an immediate skin improvement effect.

On the other hand, the mask pack is a cosmetic which restores the skin physiological function by supplying moisture and cosmetic ingredients to the skin by wrapping the skin surface. Generally, the mask pack is manufactured by impregnating the skin layer with the skin layer, and the skin cosmetic ingredient impregnated with the skin layer for a predetermined time can be effectively absorbed to the skin.

The mask pack may be used not only for a face but also for a whole body, such as a nonwoven fabric, a hydrogel type mask and the like.

Hydrogels exhibit a similar structure to the human cell matrix and are inactive, have excellent elasticity, have excellent permeability of oxygen and nutrients, and exhibit excellent biocompatibility, and thus the interest in the medical and cosmetic industries is increasing.

In the field of cosmetics, various cosmetic compositions that can enhance moisturizing, nourishing or exfoliation effects by utilizing the elasticity of the hydrogel, the skin adhesion, the water retention, and the soft touch are continuously being developed.

The hydrogel type mask pack is manufactured and distributed in a sheet form by placing a hydrogel matrix between the upper and lower two films.

However, in the case of the conventional hydrogel type mask pack, since the surface of the hydrogel sheet layer has a flat two-dimensional shape, the surface of the hydrogel sheet is slipped by the water discharged from the hydrogel matrix, and the hydrogel is pushed out from between the upper and lower films There was a problem that the production yield was remarkably lowered and the quality deteriorated in terms of the texture.

That is, in the conventional hydrogel pack, the yield of the hydrogel is lowered due to the moisture and surface properties of the hydrogel, and the adherence to the skin is reduced due to the slip phenomenon caused by the water treatment, The transfer of the components was insufficient.

Therefore, there is a demand for development of a hydrogel mask pack which has high absorption power and moisturizing power, and is excellent in flexibility and adherence when applied to skin.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a highly functional hydrogel mask pack having increased usability and moisturizing properties.

According to an aspect of the present invention, there is provided a hydrogel sheet comprising: a hydrogel sheet layer containing a foaming agent; And a cosmetic composition applied on the sheet layer.

In one embodiment, the blowing agent may include sodium bicarbonate and citric acid.

In one embodiment, the foaming agent may include 0.1 to 5.0% by weight of the sodium hydrogencarbonate and 0.1 to 5.0% by weight of the citric acid based on the total weight.

In one embodiment, the hydrogel sheet layer is divided into at least one region, and the content of the foaming agent in the divided region may be different from each other.

In one embodiment, the hydrogel sheet layer can include a first region corresponding to at least a portion of the forehead, a second region corresponding to at least a portion of the nose, and a third region corresponding to at least a portion of the mouth .

In one embodiment, the hydrogel sheet layer may be separated according to the separated regions.

In one embodiment, the cosmetic composition may be formulated into a gel, essence, cream, wax, ointment, or lotion.

In one embodiment, the cosmetic composition may be applied in an amount of 1 to 20 g / (10 cm) per sheet layer area.

According to another aspect of the present invention, And a packaging material for sealing the mask pack.

The mask pack according to one aspect of the present invention can be easily impregnated into the hydrogel sheet layer of the cosmetic composition and has excellent skin adhesion force, thereby maximizing the effect of skin improvement upon use.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a plan view of a mask pack according to an embodiment of the present invention.
2 is a plan view of an integrated mask pack according to an embodiment of the present invention.
3 is a plan view of a removable mask pack according to an embodiment of the present invention.
4 is a view showing a surface of a mask pack according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of a mask pack according to an embodiment of the present invention.

As used herein, the terminology used herein is intended to encompass all commonly used generic terms that may be considered while considering the functionality of the present invention, but this may vary depending upon the intent or circumstance of the skilled artisan, the emergence of new technology, and the like. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

The numerical range includes numerical values defined in the above range. All numerical limitations of all the maximum numerical values given throughout this specification include all lower numerical limitations as the lower numerical limitations are explicitly stated. All the minimum numerical limitations given throughout this specification include all higher numerical limitations as the higher numerical limitations are explicitly stated. All numerical limitations given throughout this specification will include any better numerical range within a broader numerical range, as narrower numerical limitations are explicitly stated.

Hereinafter, embodiments of the present invention will be described in detail, but it should be apparent that the present invention is not limited by the following examples.

Referring to FIG. 1, one aspect of the present invention provides a hydrogel sheet comprising a foaming agent; And a cosmetic composition applied on the sheet layer.

The mask pack 100 refers to a product in which a whitening, moisturizing, or other functional cosmetic composition is impregnated on a sheet corresponding to a face or an application site. The mask pack 100 is easily attached to the outer surface of the skin without applying a cosmetic composition Can be used.

The mask pack 100 may have a size or shape that covers the entire face, may be attached to a specific area such as under the eyes or the mouth, and may be separated more than two depending on the application or the characteristics of the product.

Since a large number of pores are formed on the surface of the hydrogel sheet layer, a large amount of the cosmetic composition can be impregnated into the sheet layer, and a large amount of effective ingredient can be sufficiently absorbed to the skin. The skin improvement effect can be remarkably improved.

At this time, the hydrogel sheet layer may be laminated on a support. If the support is made of nonwoven fabric or the like, part or all of the hydrogel sheet layer may be impregnated into the support. However, when a part or the whole of the hydrogel sheet layer is impregnated on the support, the hydrogel sheet layer may not physically be separated from the support. However, in the following, it may be referred to as a hydrogel sheet layer have.

The hydrogel sheet layer is a gel material having excellent water absorbency and no skin irritation, and the cosmetic composition can be applied to the surface. The surface of the sheet layer abuts the skin surface of the user so that the cosmetic composition can be applied to the user's skin.

The hydrogel sheet layer may include a foaming agent, and may further include a gelling polymer, a polyhydric alcohol, a hydrophilic polymer, a crosslinking agent, a skin active ingredient, a gelation rate regulator, and a solvent.

The foaming agent is a substance that promotes the generation of bubbles by generating a gas. Since the bubbles are generated during the gelation process of the hydrogel, porosity can be realized on the surface of the hydrogel sheet layer.

Since the hydrogel sheet layer has a large amount of cosmetic composition introduced thereinto due to the porous property of the surface, the hydrogel sheet layer is improved in water retention and moisturizing property, and the hydrogel sheet layer can be rapidly dissolved when it is applied to the skin due to micropores.

The foaming agent is not particularly limited as long as it is a component capable of generating a gas by the reaction. However, the foaming agent is not particularly limited as long as it is a component capable of generating a gas by reaction, acid, ascorbic acid, acetic acid and the like may be used in combination. Preferably, it may include sodium bicarbonate and citric acid.

The citric acid effectively removes waste materials and keratin on the face, thereby excellently cleansing the skin, improving skin texture, and enhancing the skin absorption rate of the cosmetic composition.

The foaming agent may include 0.1 to 5.0% by weight of the sodium hydrogencarbonate and 0.1 to 5.0% by weight of the citric acid based on the total weight. When the content of the blowing agent is small, the porosity of the hydrogel sheet layer may decrease, and if it is contained in a large amount, the skin irritation may increase and the economical efficiency may decrease.

In addition, since the size and shape of the pores generated may vary depending on the content of sodium hydrogencarbonate and citric acid, the content of sodium hydrogencarbonate and citric acid can be appropriately controlled in consideration of the application site and characteristics of the cosmetic composition.

The gelling polymer serves to gelate the hydrogel sheet layer and includes at least one member selected from the group consisting of galactomannan, glucomannan, guar gum, locust bean gum, pluronic, agar, algin, carrageenan, But is not limited thereto.

The gelled polymer may be contained in an amount of 0.1 to 10% by weight, and preferably 0.5 to 5.0% by weight based on the weight of the hydrogel sheet layer. If the content of the gelled polymer is less than 0.1% by weight, the hardness and flexibility of the gel may be low and skin adhesion may be decreased. If the content of the gelated polymer is more than 10% by weight, the elasticity of the gel may be decreased.

The polyhydric alcohol has a moisturizing function and may be selected from the group consisting of glycerin, ethylene glycol, 1,3-butylene glycol, propylene glycol, dipropylene glycol, sorbitol, and xylitol, no.

The polyhydric alcohol may be contained in an amount of 5 to 35% by weight, and preferably 10 to 30% by weight based on the total weight of the hydrogel sheet layer. If the content of the polyhydric alcohol is less than 5% by weight, moisture in the composition may be volatilized and adherence may be lowered when adhered to the skin. If the content is more than 35% by weight, usability and economical efficiency may be reduced due to stickiness.

The hydrophilic polymer is a polymer that can be gelated with water, and examples thereof include gelatin, polyacrylate or a salt thereof, polymethacrylic acid, carboxyvinyl polymer, polyvinyl alcohol, polyacrylamide, polyethylene oxide, polyethyleneimine, poly But are not limited to, polyvinylpyrrolidone, methylcellulose, cellulose, carboxymethylcellulose, and hydroxyethylcellulose.

The hydrophilic polymer may be contained in an amount of 0.5 to 10% by weight, preferably 1 to 5% by weight, based on the total weight of the hydrogel sheet layer. If the content of the hydrophilic polymer is less than 0.5% by weight, the strength of the hydrogel sheet layer may not be sufficiently maintained. If the content of the hydrophilic polymer is more than 10% by weight, the coating may be uneven due to high viscosity, It may be insufficient.

The skin active ingredient enhances the affinity with the skin and enhances the skin absorption rate of the functional ingredient which can effectively act on the skin. The skin active ingredient may be a whitening ingredient, a wrinkle function, an antioxidant ingredient, a moisturizing ingredient, an antibacterial ingredient, But is not limited thereto.

The skin active ingredient may be selected from the group consisting of arbutin, niacinamide, vitamin C, vitamin B5, vitamin E, retinol, coenzyme Q10, adenosine, elastin, collagen, hyaluronic acid, chitosan, But is not limited thereto.

The skin active ingredient may be contained in an amount of 0.1 to 15% by weight, more preferably 0.15 to 5% by weight, based on the total weight of the hydrogel sheet layer. If the content of the skin active ingredient is less than 0.1% by weight, the skin affinity may be poor and the skin improving effect may not be sufficiently realized. If the content is more than 15% by weight, the skin is irritated and the usability is deteriorated. .

The gelling rate controlling agent may be an organic acid such as EDTA, acetic acid, lactic acid, oxalic acid, citric acid or tartaric acid having a chelating action with respect to a metal ion, an organic acid salt such as EDTA-2 sodium, calcium citrate, sodium citrate or sodium nitrate, But the present invention is not limited thereto.

The solvent may be water, but is not limited thereto. The solvent may be contained in an amount of the remainder by adding a solvent to the other components except for the solvent, preferably 45 to 80 wt%.

In another embodiment of the present invention, the hydrogel sheet layer is divided into at least one region, and the content of the foaming agent in the divided region may be different from each other.

Conventional mask packs 100 have the same functional characteristics because they have uniform characteristics, and there is a problem in that a plurality of cosmetic or mask packs 100 must be used in order to realize a differentiated effect on each region.

However, the mask pack 100 can overcome the above-mentioned problem by dividing the hydrogel sheet layer into one or more regions and varying the content of the foaming agent.

Specifically, the hydrogel sheet layer may be applied to the face, and may be adhered to the forehead, nose, mouth, ball, or the like. In this case, since the characteristics (for example, moisture or oil content) of each part of the face are different, it is necessary to vary the amount of the cosmetic composition to be applied. By varying the porosity of the hydrogel sheet layer, The amount of the cosmetic composition to be absorbed may be varied.

For example, in order to further improve the moisture retention of the forehead region in the mask pack 100, the content of the foaming agent may be increased in the hydrogel sheet layer region corresponding to the forehead, The increased porosity of the hydrogel sheet layer area can improve the moisturizing properties of the forehead area.

That is, by dividing the hydrogel sheet layer into at least one region and controlling the content of the foaming agent for each region, the function and skin improvement effect of each region can be different, and a customized mask pack 100 optimized for each region can be provided. Can be implemented.

The divided regions of the hydrogel sheet layer may not be physically divided, and the content of the foaming agent may be appropriately controlled in consideration of the position of close contact with the face.

The divided regions of the hydrogel sheet layer can be divided into two regions, and may be divided into two, three, four, five, six or more regions as necessary.

2, the hydrogel sheet layer includes a first region 101 corresponding to at least a portion of the forehead, a second region 102 corresponding to at least a portion of the nose, and a third region 102 corresponding to at least a portion of the mouth. Region 103. However, as described above, the divided regions of the sheet layer are not particularly limited in size and shape as well as variously divided as required.

Referring to FIG. 3, the hydrogel sheet layer may be separated according to the divided regions. That is, the hydrogel sheet layer is integrally formed, and the content of the foaming agent can be varied for each region (FIG. 2). If necessary, the sheet layer applied to the face is separated and the content of the foaming agent Thereby improving convenience in use (Fig. 3).

The cosmetic composition may be formulated into a gel, an essence, a cream, a wax, an ointment, or a lotion, and the cosmetic composition may be applied in an amount of 1 to 20 g / (10 cm) per the surface area of the sheet.

If the coating amount of the cosmetic composition is less than 1 g / (10 cm) ^2, the effective ingredient of the cosmetic composition is not sufficiently absorbed into the skin, so that the skin improving effect may be lowered, the adhesive strength of the sheet layer may be reduced, Cm < ² >), the composition may be lost to the outside of the sheet layer, and the composition may be excessively applied, resulting in a decrease in economy.

On the other hand, the cosmetic composition may contain a skin cosmetic ingredient as an active ingredient.

The skin cosmetic ingredient may include functional ingredients having skin elasticity, moisturizing, whitening, antioxidation, wrinkle and anti-aging effects generally used in the production of a cosmetic composition, and examples thereof include retinol, retinyl palmitate, retinyl acetate , Arginine, collagen, hyaluronic acid, ceramide, collagen, caffeine, chitosan, ascorbic acid, ascorbyl glucoside, alpha bissabolol, tocopherol, tocopherol acetate, arbutin, niacinamide, adenosine, retinol acetate, vitamins A, D, E, or a natural extract.

The natural extract may be selected from the group consisting of chlorella, spirulina, green tea extract, aloe, evening primrose, plum, brown rice, mushroom, rice bran, ginseng, red ginseng, Can be, but not limited to.

The cosmetic composition may contain a moisturizing agent, an aging agent, a surfactant, a gelation rate regulator, a preservative, a fragrance, or a metal salt as optional components to control physical properties and quality of the product.

The humectant may be selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, polyethylene glycol (PEG), polypropylene glycol (PPG), glycolic esters and alkyl ethers of ethers, polyethylene glycols or polypropylene glycols, But are not limited to, carboxylic acid esters of propylene glycol, sorbitol, trihydroxystearin, and polyhydric alcohol derivatives.

The thickening agent may be, but is not limited to, hydroxyethyl cellulose, carbomer, hydroxypropylmethyl cellulose, hydroxypropyl cellulose, hydroxypropyl guar or xanthan gum.

The surfactant may function as an emulsifier or solubilizer and may be used to control the viscosity of the cosmetic composition or to improve stability. The surfactant may be, but is not limited to, a cationic surfactant, a positive surfactant, or a nonionic surfactant.

The surfactant is preferably selected from the group of nonionic surfactants. Examples of the surfactant include polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene cetyl ether , Polyoxyethylene isocetyl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene lanolin ether, polyoxyethylene cholesteryl ether, polyoxyethylene sorbitol oleate, polyoxyethylene sorbitan stearate Polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monolaurate, Polyoxyethylene hydrogencarbonate Castor oil, but is not limited thereto.

The preservative may be, but is not limited to, methylparaben, propylparaben, phenoxyethanol, 1,2-hexanediol, caprylylglycol, benzoic acid, or sodium benzoate.

The cosmetic composition may contain a polyhydric alcohol, an oil component, a sugar, an antiseptic, a stabilizer, a pH adjuster, a vitamin, an antioxidant, an ultraviolet absorber, an oxidizing auxiliary, an excipient or an additive in addition to the above- Various components may be introduced.

The polyhydric alcohol may supply moisture to the skin and may be selected from the group consisting of glycerin, ethylene glycol, propylene glycol, dipropylene glycol, hexylene glycol, 1,2-hexanediol, and butylene glycol, It is not.

Wherein the oil component is selected from the group consisting of isopropyl myristate, ethyl laurate, ethyl myristate, isopropyl palmitate, cyclopentane, cyclooctane, trans-decalin, n-pentane, n-hexane, n-hexadecane, , 7-octadiene, butyl laurate, cyclododecane, dibutyl ether, isooctane, n-octane, tributylamine, triisobutylamine, polyol ester, triglyceride, diglyceride, monoglyceride, diglyceride ; Caprylic / capric triglyceride, butyleneglycol dicaprylate / dicaprate, triethylhexanone, cetylethylhexanoate, isopropyl myristate, octyldodecanol; Liquid paraffin, Vaseline, Hydrogenated polydecene, Squalene; Micro-stalin wax, beads wax, lanolin wax; Jojoba Oil, Avocado Oil, Almond Oil, Olive Oil, Sesame Oil, Wheat Germ Oil, Four Flower Oil, Camellia Oil, Castor Oil, Grape Seed Oil, Green Tea Seed Oil, Macadamia Nut Oil, Palm Oil, Rosehip Oil, Tree oil, argan tree kernel oil, lavender oil; But is not limited to, at least one selected from the group consisting of cyclomethicone, phenyltrimethicone, cyclopentasiloxane, and dimethicone.

According to another aspect of the present invention, the mask pack (100); And a packaging material for enclosing the mask pack 100 are provided.

The packaging material may be a material and a structure that can seal the mask pack 100 and prevent contamination of the cosmetic composition due to evaporation, deterioration, or external factors.

As the packaging material, synthetic resins such as polyethylene terephthalate (PET), polyethylene (PE), and polypropylene (PP) may be used, but the present invention is not limited thereto. The packaging material may be of a type and structure commonly used in the art, and a perforated line may be formed on the top of the packaging material for convenience.

The present invention will be further described with reference to the following examples, but it should be apparent that the present invention is not limited by the following examples.

Example  And Comparative Example  : Hydrogel Mask pack  Produce

170 g of glycerin, 6 g of carrageenan and 20 g of locust bean gum were mixed with 740 g of purified water and stirred at room temperature, and the hydrogel composition was prepared while maintaining the temperature at 85 캜. According to the following Table 1, sodium hydrogencarbonate and citric acid Respectively.

division Sodium hydrogencarbonate (wt.%) Citric acid (% by weight) CO ₂ gas production amount Example 1 3.0 3.0 much Example 2 0.5 0.5 much Example 3 0.3 0.3 much Comparative Example 1 0.1 0.1 usually Comparative Example 2 0.05 0.05 handful Comparative Example 3 - - none

The gelled hydrogel composition was filled in a working tank and coated on a plate at a temperature of 70 캜 while maintaining a viscosity of 300 cps and gelled by a cooling device at 5 캜 to prepare a hydrogel sheet layer.

The amount of the abnormal carbon dioxide produced in the hydrogel composition was as shown in Table 1, and fine pores were effectively formed on the surface by a certain ratio of sodium hydrogencarbonate and citric acid in the gelling process (FIG. 4).

Experimental Example  1: Skin adhesion test

The skin adhesion strengths of the above-mentioned Examples and Comparative Examples were evaluated in 40 adult men and women.

Skin adhesion was evaluated by attaching a mask pack to the face of the subject, facing the face toward the ground, and measuring the time when the mask pack disappeared from the face. The evaluation results are shown in Table 2 below.

division Evaluation of skin adhesion (time) Example 1 28 minutes 20 seconds Example 2 25 minutes 30 seconds Example 3 29 minutes 40 seconds Comparative Example 1 17 minutes 50 seconds Comparative Example 2 14 minutes 20 seconds Comparative Example 3 10 minutes 30 seconds

The above results suggest that the mask pack in which the bubbles are formed contains a large amount of cosmetic composition and skin adhesion can be remarkably increased due to the surface characteristics.

Experimental Example  2: Absorption test

The absorbency of the active ingredients in the above Examples and Comparative Examples was evaluated. The absorbency was evaluated by measuring the difference between the weight and the weight before impregnation after impregnating the cosmetic composition of the essence formulation into the mask pack. The evaluation results are shown in Table 3 below.

division Absorption Evaluation (Weight) Example 1 29.73 g Example 2 30.95 g Example 3 28.78g Comparative Example 1 26.58g Comparative Example 2 23.14 g Comparative Example 3 18.23 g

Experimental Example  3: Skin penetration test

The skin penetration ability of the cosmetic composition impregnated in the hydrogel sheet layers of the above Examples and Comparative Examples was evaluated.

The mask pack was used for 15 minutes, and then the weight of the mask pack before and after use was measured to indirectly calculate the content of the components penetrated into the skin to evaluate the skin penetration ability. The evaluation results are shown in Table 4 below.

division Weight reduction rate (%) Example 1 15.5% Example 2 14.9% Example 3 15.9% Comparative Example 1 14.3% Comparative Example 2 13.5% Comparative Example 3 11.5%

The above results suggest that the cosmetic composition is introduced into the fine pores formed on the surface of the hydrogel sheet layer in a large amount so that the absorption power of the active ingredient can be increased and skin permeability of the cosmetic composition can be improved when the mask pack is used .

Experimental Example  4 : Moisturizing  exam

Essence formulation

The hydrogel sheet layers of Examples and Comparative Examples were impregnated with a cosmetic composition of the essence type to evaluate whether the moisturizing effect was improved.

The soymilk for imparting a moisturizing effect to the micropores of the hydrogel sheet layer was impregnated and the moisturizing effect was compared. The moisturizing effect of the hydrogel sheet layer was evaluated after adhesion and removal of the skin layer with the cosmetic composition of the essence formulation. The evaluation results are shown in Table 5 below.

division Before attachment After attachment Ten minutes after removal Example 1 27.2 33.9 32.5 Example 2 26.9 34.7 33.2 Example 3 26.8 34.1 32.9 Comparative Example 1 27.1 32.1 30.1 Comparative Example 2 26.3 31.7 29.4 Comparative Example 3 26.2 31.0 28.3

Cream formulation

The hydrogel sheet layers of the examples and comparative examples were impregnated with a cream-form cosmetic composition to evaluate whether the moisturizing effect was improved. In the same manner as in the experimental example using the essence formulation, the cosmetic composition of the cream form was impregnated and the moisturizing effect was compared. The evaluation results are shown in Table 6 below.

division Before attachment After attachment Ten minutes after removal Example 1 30.5 33.9 32.5 Example 2 29.6 38.3 34.7 Example 3 30.8 37.5 33.8 Comparative Example 1 28.7 35.2 31.4 Comparative Example 2 30.2 34.6 30.9 Comparative Example 3 30.3 33.1 30.2

Referring to Tables 5 and 6, the hydrogel sheet layer impregnated with the cosmetic composition remarkably enhanced the moisturizing effect due to the micropores, and in particular, the cosmetic composition of the cream formulation introduced into the micropores was effectively transferred to the skin after adhesion 5).

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: mask pack
101: first region
102: second area
103: third region

Claims (9)

A hydrogel sheet layer containing a foaming agent; And
And a cosmetic composition applied on the sheet layer. The method according to claim 1,
Wherein the foaming agent comprises sodium bicarbonate and citric acid. The method according to claim 1,
Wherein the foaming agent comprises 0.1 to 5.0% by weight of the sodium hydrogencarbonate and 0.1 to 5.0% by weight of the citric acid based on the total weight. The method according to claim 1,
Wherein the hydrogel sheet layer is divided into at least one region, and the foaming agent contents in the divided regions are different from each other. 5. The method of claim 4,
The hydrogel sheet layer comprising a first region corresponding to at least a portion of the forehead, a second region corresponding to at least a portion of the nose, and a third region corresponding to at least a portion of the mouth. 5. The method of claim 4,
And the hydrogel sheet layer is separated according to the divided area. The method according to claim 1,
The cosmetic composition is formulated into a gel, an essence, a cream, a wax, an ointment, or a lotion. 5. The method of claim 4,
Wherein the cosmetic composition is applied in an amount of 1 to 20 g / (10 cm) per the sheet surface area. The mask pack according to any one of claims 1 to 8, And
And a packaging material enclosing the mask pack.

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