KR102371117B1 - A multi-layer bio-cellulose sheet mask coated with hydrogel and a method for manufacturing the same - Google Patents

Abstract

The present invention relates to a multi-layer bio-cellulose sheet mask in which a hydrogel is combined with bio-cellulose, which is a representative material of the sheet mask, and a method for manufacturing the same. By manufacturing a gel-coated multi-layered bio-cellulose sheet mask, a hydrogel-coated multi-layer bio-cellulose sheet with improved ease of use while maintaining excellent skin adhesion and active ingredient delivery, which are the advantages of bio-cellulose, It relates to a mask and a method for manufacturing the same.

Description

A multi-layer bio-cellulose sheet mask coated with hydrogel and a method for manufacturing the same}

The present invention relates to a multi-layer bio-cellulose sheet mask in which a hydrogel is combined with bio-cellulose, which is a representative material of the sheet mask, and a method for manufacturing the same. By manufacturing a gel-coated multi-layered bio-cellulose sheet mask, a hydrogel-coated multi-layer bio-cellulose sheet with improved ease of use while maintaining excellent skin adhesion and active ingredient delivery, which are the advantages of bio-cellulose, It relates to a mask and a method for manufacturing the same.

Bio-cellulose (BC) is a material obtained through microbial fermentation, and unlike cellulose manufactured from wood or pulp, it is an eco-friendly material with a nano-fiber structure and is widely applied and used in sheet masks.

Bio-cellulose has excellent adhesion to the skin and high liquid retention, so it can effectively deliver active ingredients to the skin, but it has a problem of being easily damaged (tearing) when used due to its softer and softer texture than vegetable cellulose. Therefore, it is difficult to unfold the folded sheet mask when using it, and it is difficult to attach to the skin because it is not fixed in a certain shape.

Therefore, most of the general bio-cellulose sheet masks are manufactured by attaching a support using a non-woven fabric, film, or mesh-type material to one or both sides of the bio-cellulose sheet. We are solving the problem of sticking together.

Here, when the bio-cellulose sheet mask is applied to the skin without removing the support, the flexibility of the bio-cellulose is reduced due to the support attached to the bio-cellulose, so that the skin adhesion, which is an inherent advantage of the bio-cellulose material, is reduced. For this reason, in normal use, the support is removed and then attached to the skin.

However, in the case of such a sheet mask, it is not easy to remove the support, and in the process of attaching to the skin after removing the support, the bio-cellulose sheets stick to each other again, so there is still a problem in that it is difficult to attach to the skin.

Separately, as in Korean Patent Application Laid-Open No. 10-2017-0003098 filed by the same applicant of the present invention, the mask pack sheet is made of bio-cellulose produced by a bio-cellulose-producing strain cultured in a culture medium containing black beans. Efforts are being made to solve the above-mentioned problems by changing the physical properties of bio-cellulose itself, such as reinforcing the elasticity and tensile strength of bio-cellulose fibers by manufacturing, but this also solves only the problem that the bio-cellulose sheet is easily damaged and However, it is a situation that does not solve the problems that the bio-cellulose sheets stick to each other and are difficult to unfold when used or difficult to adhere to the skin.

On the other hand, recent sheet masks have appeared in the form of products printed with various colors or patterns in order to impart aesthetic characteristics as well as cosmetic effects on the skin.

However, in the case of bio-cellulose, it is not easy to dye or print like non-woven fabrics or cotton fibers, which are commonly used sheet mask materials, so most are manufactured in the form of a transparent white sheet. Various studies are being attempted.

For example, in Korean Patent Registration No. 10-1638371, a bio-cellulose sheet is immersed in a natural extract solution at room temperature for 2 to 4 hours, and then the bio-cellulose-immersed solution is heated at 90° C. to 100° C. for 30 minutes. By repeating the process of washing with purified water one or more times, a method for producing a colored bio-cellulose sheet using a natural material is disclosed.

However, the prior art as described above can simply color the bio-cellulose sheet with a single color, and cannot dye or print various types of patterns or colors on the bio-cellulose sheet, so there is a limit to improving the aesthetics. .

1. Republic of Korea Patent Publication No. 10-2017-0003098 (Title: Bio-cellulose with enhanced tensile strength and manufacturing method thereof, publication date: 2017.01.09) 2. Republic of Korea Patent No. 10-1638371 (Name: Method for manufacturing color bio-cellulose sheet, registration date: 2016.07.05)

Accordingly, the present inventors have conducted research from various angles to solve the above problems, and as a result, a bio-cellulose sheet mask having a multi-layered structure is manufactured, but the layer in contact with the skin surface is formed of a bio-cellulose layer, and the skin of the bio-cellulose layer When a hydrogel layer is formed by coating or spraying a hydrogel solution on the opposite side of the contact surface, the hydrogel layer formed on one side of the biocellulose layer adheres to each other while maintaining excellent skin adhesion, which is an inherent advantage of biocellulose. It was confirmed that it is easy to spread when used by preventing it from being used, and it is convenient to apply to the skin, as well as providing an aesthetic feeling by containing pigments, beads, raw materials, etc. in the hydrogel layer.

Accordingly, it is an object of the present invention to provide a multi-layer bio-cellulose sheet mask coated with a hydrogel that is easy to spread and convenient to apply to the face by preventing bio-cellulose from sticking to each other while maintaining excellent skin adhesion of bio-cellulose.

In addition, another object of the present invention is to provide a bio-cellulose sheet mask with improved aesthetics by printing various types of patterns or colors by containing pigments, beads, and raw materials in the hydrogel layer coated or sprayed on one side of the bio-cellulose. There is a purpose.

In order to achieve the above object, the present invention provides a bio-cellulose sheet mask having a multi-layer structure, comprising: a bio-cellulose layer; and a hydrogel layer formed on one surface of the bio-cellulose layer; provides a hydrogel-coated multi-layer bio-cellulose sheet mask comprising a.

As described above, the present invention produces a multi-layer bio-cellulose sheet mask in which a hydrogel layer is formed on one surface of bio-cellulose, thereby maintaining excellent skin adhesion of bio-cellulose while preventing bio-cellulose from sticking to each other, making it easy to spread and easy to spread. It has the advantage of being convenient to apply.

In addition, various types of patterns or colors can be printed on the hydrogel layer coated or sprayed on one surface of the bio-cellulose, thereby improving the aesthetics of the bio-cellulose sheet mask.

1 is a view showing a cross-section of a hydrogel-coated multi-layer bio-cellulose sheet mask according to an embodiment of the present invention.
2 and 3 are photographs and graphs showing the adhesion test results over time of the hydrogel-coated multilayer biocellulose sheet and the general biocellulose sheet and the hydrogel sheet according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail to help the understanding of the present invention.

The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Various modifications may be made to the embodiments described below. It should be understood that the embodiments described below are not intended to limit the embodiments, and include all modifications, equivalents, and substitutes thereto.

Terms used in the examples are used to describe specific examples, and are not intended to limit the examples.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, form, or a combination thereof described in the specification exists, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of elements, numbers, steps, operations, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the embodiment belongs, including technical or scientific terms, unless otherwise defined. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with the meanings in the context of the related art, and are not interpreted in an excessively formal meaning unless explicitly defined in the present application.

Multi-layer Bio-Cellulose Sheet Mask

The present invention relates to a bio-cellulose sheet mask having a multi-layer structure in which a hydrogel solution is coated or sprayed on one side of the bio-cellulose.

A hydrogel-coated multi-layer bio-cellulose sheet mask according to the present invention, a bio-cellulose layer; and a hydrogel layer formed on one surface of the bio-cellulose layer.

The hydrogel layer is formed to be bonded to one surface of the bio-cellulose layer by coating or spraying a hydrogel solution on one surface of the bio-cellulose layer to cool and gel.

Therefore, the multi-layer bio-cellulose sheet mask of the present invention forms a hydrogel layer on one side of the bio-cellulose layer, and the other side of the bio-cellulose layer on which the hydrogel layer is formed on the one side is in contact with the skin, so that the excellent skin adhesion of bio-cellulose is While maintaining, the hydrogel layer formed on one surface of the bio-cellulose layer prevents the bio-cellulose from sticking to each other, so it is easy to spread and convenient to apply to the face.

In addition, various types of patterns or colors can be printed on the hydrogel layer formed on one surface of the bio-cellulose layer, thereby improving the aesthetics of the bio-cellulose sheet mask.

1 is a view showing a cross-section of a hydrogel-coated multi-layer bio-cellulose sheet mask according to an embodiment of the present invention. As shown in FIG. 1 , the hydrogel-coated multilayer biocellulose sheet mask 10 of the present invention includes a biocellulose layer 11 and a hydrogel layer 12 .

At this time, the hydrogel layer 12 is formed on one surface of the bio-cellulose layer 11 , and the other surface of the bio-cellulose layer 11 on which the hydrogel layer 12 is formed on the one surface is in contact with the skin 1.

Here, the bio-cellulose layer 11 may be any type of bio-cellulose known in the art that can be used as a sheet mask without limitation, in particular, Acetobacter genus, Rhizpbium genus and Agro. It is preferable to use biocellulose produced by culturing a strain selected from the group consisting of microorganisms of the genus Agrobacterium, etc., but the present invention is not limited thereto.

In addition, in the bio-cellulose layer 11 of the present invention, the thickness of the bio-cellulose can be appropriately adjusted for good bonding with the hydrogel layer 12. Due to the control of the dry weight of the sheet per unit area, the thickness of the bio-cellulose can be adjusted.

That is, when the weight after drying per 100 cm 2 of the bio-cellulose is 20 mg to 300 mg, the water contained in the bio-cellulose and the hydrogel polymer can be well bonded, so that delamination does not occur even when the cosmetic composition is loaded. It is possible to manufacture the bio-cellulose sheet mask 10 having a multi-layer structure, and preferably, the weight after drying per 100 cm 2 of the area of the bio-cellulose is 50 mg to 150 mg.

On the other hand, the hydrogel layer 12 is formed by coating or spraying a hydrogel solution on one surface of the biocellulose layer 11, cooling and gelling. It is possible to manufacture the bio-cellulose sheet mask 10 having a multi-layer structure that is bonded so that delamination does not occur even when the cosmetic composition is supported.

In addition, the hydrogel layer 12 is one or more gelling polymers selected from the group consisting of galactomannan, glucomannan, guar gum, locust bean gum, pluronic, agar, algin, carrageenan, xanthan gum and gellan gum; and glycerin , ethylene glycol, butylene glycol, propylene glycol, dipropylene glycol, isopropylene glycol, at least one polyhydric alcohol selected from the group consisting of sorbitol and xylitol; can be formed using a hydrogel solution containing, in addition to Of course, various types of compositions known to be used for preparing the hydrogel may be used without limitation.

The hydrogel layer 12 may be formed by coating or spraying the above-described hydrogel solution on one surface of the bio-cellulose layer 11 to cool and gel, in this case, the thickness of the hydrogel layer 12 is specifically in the present invention. It is not limited and may be appropriately adjusted as needed, but preferably in the range of 0.1 mm to 10 mm, more preferably in the range of 0.5 mm to 2 mm.

That is, when the thickness of the hydrogel layer 12 is less than 0.1 mm, the thickness of the hydrogel layer 12 formed on one surface of the bio-cellulose layer 11 is too thin, so that the bio-cellulose forming the bio-cellulose layer 11 is mutually It is difficult to prevent sticking or aggregation, and there is still a problem that it is difficult to unfold when using a sheet mask, and when the thickness of the hydrogel layer 12 exceeds 10 mm, it flows down by the weight of the hydrogel layer 12, Since the sheet mask 10 is excessively thick and there is a problem of poor adhesion when attached to the skin, it is appropriately adjusted within the above range.

Here, the coating method or spraying method of the hydrogel solution for forming the hydrogel layer 12 is not particularly limited, and a hydrogel layer of a certain thickness by uniformly coating or spraying the hydrogel solution in a warming liquid state (12) ) can be used without limitation as long as it is a method capable of forming.

A support may be additionally inserted into the hydrogel layer 12 to supplement the physical properties of the hydrogel layer 12, and the support may be, for example, a mesh or nonwoven fabric commonly used in the manufacture of a hydrogel. However, the present invention is not limited thereto, and various types of supports used to supplement the physical properties of the hydrogel in the art may be used without limitation.

On the other hand, the hydrogel layer 12 of the present invention may contain dyes, beads and/or raw materials to improve the aesthetics of the multi-layer bio-cellulose sheet mask 10, and various types of images may be printed.

In other words, in the case of bio-cellulose, it is not easy to dye or print unlike nonwoven fabrics or cotton fibers, which are commonly used sheet mask materials, and most are manufactured in the form of a transparent white sheet. Limitations existed.

However, in the bio-cellulose sheet mask 10 according to the present invention, the hydrogel layer 12 formed on one surface of the bio-cellulose layer 11 may contain dyes, beads, and/or raw materials, etc., and various types of images can be easily obtained. Since the bio-cellulose sheet mask 10 can be printed, various colors or images can be realized, or the bio-cellulose sheet mask 10 with decorations attached thereto, there is an advantage in that the aesthetics of the bio-cellulose sheet mask 10 can be improved.

At this time, the types of pigments, beads and/or raw materials contained in the hydrogel layer 12 are not particularly limited in the present invention, and are added to the hydrogel layer 12 to improve aesthetics to express various colors. Or, if it can give a decorative effect by forming a specific pattern, etc., it can be used without limitation.

In addition, the image printed on the hydrogel layer 12 is also not particularly limited in its type, and may be selected and used in various ways according to customer preference. For example, the image may be printed with at least one type of image selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces.

In the multi-layer bio-cellulose sheet mask 10 of the present invention, until the sheet mask 10 is attached to the skin, the skin-contacting surface of the sheet mask 10 is protected, and the cosmetic composition carried on the sheet mask 10 is contaminated and A release film layer (not shown) for preventing evaporation may be formed.

According to an embodiment of the present invention, the release film layer (not shown) is on the other surface of the bio-cellulose layer 11 on which the hydrogel layer 12 is formed on the one surface and the surface on which the hydrogel layer 12 is exposed to the outside. Each may be formed, and the release film layer is peeled off from the sheet mask 10 when the user uses the sheet mask 10 .

The material of the release film layer is not particularly limited, and any material known to be used as a release film in the art may be used without limitation.

For example, the release film layer is a transparent or opaque film, and the material is polyethylene terephthalate (PET), polyethylene (PE), polyester (PS), aluminum, nylon, polypropylene (PP), aromatic polypropylene (Oriented Poly Propylene, OPP), Casting Poly Propylene (CPP), High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), and Linear Low Density Polyethylene (LLPDE) It may be at least one selected from the group consisting of, and the thickness of the film may be 0.01 mm to 2 mm, but is not limited thereto.

As described above, the hydrogel-coated multi-layer bio-cellulose sheet mask of the present invention is formed by cooling and gelling the bio-cellulose layer 11 and one surface of the bio-cellulose layer 11 by coating or spraying a hydrogel solution. It includes a hydrogel layer 12 to be used, and while maintaining excellent skin adhesion of bio-cellulose, the hydrogel layer 12 prevents bio-cellulose from sticking to each other, so it is easy to spread and convenient to apply to the face.

In addition, various types of patterns and colors can be printed on the hydrogel layer 12 , thereby improving the aesthetics of the bio-cellulose sheet mask.

Manufacturing method of multi-layer bio-cellulose sheet mask

<Production method 1>

Looking at the manufacturing method of the hydrogel-coated multi-layer bio-cellulose sheet mask according to <Manufacturing method 1> of the present invention, the manufacturing method is,

flattening the bio-cellulose to form a bio-cellulose layer;

coating a hydrogel solution on the bio-cellulose layer; and

Cooling and gelling the coated hydrogel solution to form a hydrogel layer; can be prepared including.

Hereinafter, the manufacturing method according to <Manufacturing method 1> of the present invention will be described in detail step by step.

(1) Bio-cellulose layer formation step

In this step, the bio-cellulose is spread flat to form a bio-cellulose layer. As described above, any type of bio-cellulose produced by culturing the strain may be used without limitation, and commercially available bio-cellulose can be used, or it can be prepared and used directly.

Here, the bio-cellulose layer is preferably formed on a release film to protect the surface exposed to the outside, and the release film is peeled from the bio-cellulose layer when a user uses a sheet mask, and the release film is in contact with the bio The cellulose layer becomes the skin-contacting surface.

The material and thickness of the release film are as described above, but the present invention is not limited thereto.

(2) hydrogel solution coating step

This step is a step of coating the hydrogel solution on the bio-cellulose layer, and coating the hydrogel solution on the upper surface of the bio-cellulose layer formed on the release film (that is, the opposite side of the surface where the release film and the bio-cellulose layer are in contact). do.

At this time, the coating method of the hydrogel solution can be used without limitation as long as it is a method that can uniformly coat the hydrogel solution to a certain thickness, for example, comma coating, reverse coating, slot die coating, spray coating, doctor A method such as a blade may be used, and the thickness of the hydrogel layer is preferably in the range of 0.1mm to 10mm, and more preferably in the range of 0.5mm to 2mm.

Components and content ratios of the hydrogel solution are not particularly limited, and as described above, galactomannan, glucomannan, guar gum, locust bean gum, pluronic, agar, algin, carrageenan, xanthan gum and gellan gum are One or more gelling polymers selected from the group; And one or more polyhydric alcohols selected from the group consisting of glycerin, ethylene glycol, butylene glycol, propylene glycol, dipropylene glycol, isopropylene glycol, sorbitol and xylitol; Hydrogel solution containing can be used, and various types of compositions known in the art that can be used for preparing hydrogels can be used without limitation.

On the other hand, in the above-described hydrogel solution coating step, the hydrogel solution may further contain a dye, a bead and / or a raw material.

That is, by additionally containing a dye, beads and/or raw material in the hydrogel solution, a specific color can be expressed or a hydrogel layer having a decoration attached thereto can be formed, thereby improving the aesthetics of the sheet mask can indicate

(3) hydrogel layer formation step

This step is a step of cooling and gelling the coated hydrogel solution to form a hydrogel layer, and the coated hydrogel solution is cooled while gelling to form a hydrogel layer.

At this time, the cooling of the coated hydrogel solution may be performed by any one method selected from a method using natural cooling, a method using a cooling tunnel, and a method using these in combination, but the present invention is not limited thereto, and in general It goes without saying that the method may be performed by various well-known methods.

On the other hand, in the hydrogel layer forming step, as in the (2) hydrogel solution coating step described above, a specific color is expressed by additionally containing a dye, a bead and/or a raw material in the hydrogel layer, or a hydrogel in a form with a decoration attached thereto It is also possible to form a gel layer, and by printing an image such as a specific pattern or pattern on the hydrogel layer, it is possible to improve the aesthetics of the sheet mask.

At this time, the type of the image printed on the hydrogel layer is not particularly limited, and may be selected and used in various ways according to the customer's preference. For example, the image may be printed with at least one type of image selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces, and the method of forming the image is also specifically It is not limited, and various methods known in the art that can print a specific image on the hydrogel layer can be used without limitation.

(4) sheet mask manufacturing step

After the steps (1) to (3) described above, further, forming a release film on the hydrogel layer to prepare a multi-layer bio-cellulose sheet; and cutting the multi-layer bio-cellulose sheet to prepare a multi-layer bio-cellulose sheet mask; may be further included.

That is, a release film layer for preventing contamination and evaporation of the cosmetic composition supported on the sheet mask is additionally formed on the hydrogel layer that has undergone the steps (1) to (3) to prepare a multi-layered biocellulose sheet, By cutting the layered biocellulose sheet into a face shape to produce a multilayered biocellulose sheet mask, a final sheet mask product can be manufactured.

<Production method 2>

Looking at the manufacturing method of the hydrogel-coated multi-layer bio-cellulose sheet mask according to <Production Method 2> of the present invention, the manufacturing method is,

Preparing a molded tray on which an intaglio pattern is formed;

Flat mounting the bio-cellulose molded in the same shape as the molded tray in the tray;

spraying the hydrogel solution onto the tray on which the bio-cellulose is mounted;

Cooling and gelling the hydrogel solution to form a hydrogel layer; can be prepared including.

Hereinafter, the manufacturing method according to <Manufacturing method 2> of the present invention will be described in detail step by step.

(1) tray preparation step

This step is a step of preparing a molded tray on which an engraving pattern is formed for mounting the biocellulose, and the tray is a transparent or opaque molded tray on which an engraving of a certain shape is formed.

That is, in the molded tray according to this embodiment, the face shape is engraved so that a hydrogel layer of a certain thickness can be formed by spraying a hydrogel solution onto the biocellulose mounted on the tray after mounting the biocellulose therein. is formed

These molded trays are made of polyethylene terephthalate (PET), polyethylene (PE), polyester (PS), aluminum, nylon, polypropylene (PP), oriented polypropylene (Oriented Poly) so that an engraving of a certain shape can be formed and fixed. Group consisting of Propylene, OPP), Casting Poly Propylene (CPP), High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), and Linear Low Density Polyethylene (LLPDE) It may be formed of one or more materials selected from, but the present invention is not limited thereto.

In addition, the thickness of the molded tray is not particularly limited, but is preferably formed within the range of 0.1mm to 5mm.

(2) Bio-cellulose mounting step

In this step, the bio-cellulose molded in the same shape as the mold-type tray is flatly mounted inside the tray, and the bio-cellulose layer is formed through this step.

That is, as described above, any type of biocellulose produced by culturing the strain may be used as the bio-cellulose without limitation, and commercially available bio-cellulose may be used or may be directly manufactured and used. In order to be mounted on the molded tray, it is molded in the same shape as the engraved pattern formed on the molded tray, and is mounted flatly in the tray.

(3) hydrogel solution injection step

This step is a step of spraying the hydrogel solution on the tray on which the bio-cellulose is mounted, the hydrogel solution may be sprayed to a uniform thickness on the bio-cellulose, in this case, the thickness of the sprayed hydrogel solution is 0.1mm to It is preferably 10 mm, more preferably 0.5 mm to 2 mm.

The spray thickness of the hydrogel solution affects the thickness of the hydrogel layer formed on one surface of the bio-cellulose layer. That is, when the thickness of the hydrogel layer 12 is less than 0.1 mm, the thickness of the hydrogel layer 12 formed on one surface of the bio-cellulose layer 11 is too thin, so that the bio-cellulose forming the bio-cellulose layer 11 is mutually It is difficult to prevent sticking or aggregation, and there is still a problem that it is difficult to unfold when using a sheet mask, and when the thickness of the hydrogel layer 12 exceeds 10 mm, it flows down by the weight of the hydrogel layer 12, Since the sheet mask 10 is excessively thick and there is a problem of poor adhesion when attached to the skin, it is appropriately adjusted within the above range.

On the other hand, in the spraying step of the hydrogel solution, as in the (2) hydrogel solution coating step of the above-mentioned <Production method 1>, a dye, beads and/or raw material may be additionally contained in the hydrogel solution, By additionally containing a dye, beads and/or raw material in the hydrogel solution, a specific color can be expressed or a hydrogel layer having a decoration attached thereto can be formed, thereby showing the effect of improving the aesthetics of the sheet mask can

(4) hydrogel layer formation step

This step is a step of cooling and gelling the sprayed hydrogel solution to form a hydrogel layer, and the sprayed hydrogel solution is cooled and gelled to form a hydrogel layer.

In this case, the cooling of the injected hydrogel solution may be performed by any one method selected from a method using natural cooling, a method using a cooling tunnel, and a method using these in combination, but the present invention is not limited thereto, and in general It goes without saying that the method may be performed by various well-known methods.

On the other hand, even in the hydrogel layer forming step, a specific color is expressed by additionally containing a dye, a bead and/or a raw material in the hydrogel layer as in the (3) hydrogel solution spraying step described above, or a hydrogel in the form of a decoration attached thereto It is also possible to form a gel layer, and by printing an image such as a specific pattern or pattern on the hydrogel layer, it is possible to improve the aesthetics of the sheet mask.

In this case, the type of the image printed on the hydrogel layer is not particularly limited, and may be selected and used in various ways according to the customer's preference. For example, the image may be printed with at least one type of image selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces, and the method of forming the image is also specifically It is not limited, and various methods known in the art to print a specific image on the hydrogel layer may be used without limitation.

As described above, the hydrogel-coated multi-layer bio-cellulose sheet mask of the present invention is cooled and gelled by coating or spraying a hydrogel solution on the bio-cellulose layer and one surface of the bio-cellulose layer through the manufacturing method as described above. It has a laminated structure in the order of the hydrogel layers to be formed. Therefore, the hydrogel-coated multi-layer bio-cellulose sheet mask of the present invention has the advantage of being easy to spread and convenient to apply to the face while maintaining the excellent skin adhesion of the bio-cellulose while preventing the bio-cellulose from adhering to each other. In addition, various types of patterns or colors can be printed on the hydrogel layer, and thus, there is an effect of improving the aesthetics of the bio-cellulose sheet mask.

<Example> Preparation of Examples and Comparative Examples

Example 1, Comparative Example 1, and Comparative Example 2 were prepared according to the following manufacturing method with the composition shown in Table 1 (unit: wt%).

Here, Example 1 is a multi-layered biocellulose sheet coated with a hydrogel according to the present invention, and Comparative Examples 1 and 2 are obtained by preparing a generally used biocellulose sheet and a hydrogel sheet, respectively.

turn Ingredient name Example 1 Comparative Example 1 Comparative Example 2 One Purified water To 100 To 100 To 100 2 carrageenan 1.50 0 1.50 3 locust bean gum 0.70 0 0.70 4 baby 0.20 0 0.20 5 carbopol 0 0.11 0 6 potassium hydroxide 0 0.03 0 7 antiseptic 0.20 0.20 0.20 8 Ethylhexylglycerin 0.05 0.05 0.05 10 glycerin 15.00 3.00 15.00 11 Butylene Glycol 5.00 10.00 5.00 12 ethanol 0 3.00 0 13 Spices 0.05 0.05 0.05

<Production method>

1) Preparation of Example 1: Using an agi-mixer while heating the raw materials 1 to 12 listed in Table 1 to a temperature range of 70 ° C to 80 ° C, stirring and dissolving the hydrogel After preparing a solution, the prepared hydrogel solution was coated on one side of the biocellulose to a thickness of 0.5 mm to 2 mm, and then cooled to a temperature range of 0 ° C to 10 ° C to prepare a hydrogel-coated multi-layer bio-cellulose sheet do.

2) Preparation of Comparative Example 1: A solubilizing solution containing no oil and surfactant was prepared using the raw materials 1 to 12 described in Table 1, and then filled in biocellulose to prepare a biocellulose sheet.

3) Preparation of Comparative Example 2: A hydrogel solution was prepared in the same manner as in Example 1 using the raw materials of Nos. 1 to 12 described in Table 1, and after coating the prepared hydrogel solution on a mesh, Cooling to prepare a hydrogel sheet.

<Test Example> Adhesion test

To test the adhesion of Example 1 (multilayer biocellulose sheet coated with hydrogel according to the present invention), Comparative Example 1 (biocellulose sheet) and Comparative Example 2 (hydrogel sheet) prepared by the above-described manufacturing method To this end, Example 1, Comparative Example 1, and Comparative Example 2 were molded to the same size and attached to the water-repellent film, and then stood at a right angle and flowed down immediately after attachment, 20 minutes after attachment, 60 minutes after attachment, and 120 minutes after attachment. was measured, and it is shown in FIGS. 2 and 3 .

2 and 3, Example 1 and Comparative Example 1 do not flow down even after a certain time has elapsed and maintain the initial attachment position, whereas Comparative Example 2 starts to flow down over time, After 120 minutes of attachment, it can be seen that about 15cm has flowed down from the initial attachment location.

Therefore, the hydrogel-coated multi-layer bio-cellulose sheet mask according to the present invention can maintain the same level of skin adhesion as the existing bio-cellulose sheet mask, while the hydrogel layer formed on one side of the bio-cellulose layer is the bio-cellulose. It can prevent sticking or aggregation, which has the advantage of improving usability.

1: skin 10: sheet mask
11: bio-cellulose layer 12: hydrogel layer

Claims (23)

In the multi-layer bio-cellulose sheet mask,
bio-cellulose layer; and
a hydrogel layer formed on one surface of the bio-cellulose layer;
including,
The hydrogel layer formed on one surface of the bio-cellulose layer has a thickness of 0.1 mm to 10 mm,
The other surface of the bio-cellulose layer is a multi-layer bio-cellulose sheet mask, characterized in that the hydrogel layer is not formed, and the surface is in direct contact with the skin when the sheet mask is used.
The method of claim 1,
The hydrogel layer,
A multilayer bio-cellulose sheet mask characterized in that it is cooled and gelled by coating a hydrogel solution.
The method of claim 1,
The hydrogel layer,
A multi-layered bio-cellulose sheet mask characterized in that it is cooled and gelled by spraying a hydrogel solution.
delete The method of claim 1,
The hydrogel layer,
A multi-layer bio-cellulose sheet mask, characterized in that the thickness is 0.5 mm to 2 mm.
The method of claim 1,
In the hydrogel layer,
A multi-layer bio-cellulose sheet mask comprising one selected from the group consisting of pigments, beads, raw materials, and combinations thereof.
The method of claim 1,
In the hydrogel layer,
A multilayer biocellulose sheet mask, characterized in that at least one type of image selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces is printed.
The method of claim 1,
The bio-cellulose layer,
A multi-layer bio-cellulose sheet mask, characterized in that the dry weight is 20 mg to 300 mg per 100 cm 2 of the bio-cellulose area.
9. The method of claim 8,
The bio-cellulose layer,
A multi-layered bio-cellulose sheet mask, characterized in that the dry weight is 50 mg to 150 mg per 100 cm 2 of the bio-cellulose area.
The method of claim 1,
The sheet mask is
Multi-layer bio-cellulose sheet mask, characterized in that it further comprises a release film layer.
The method of claim 1,
In the hydrogel layer,
Multi-layer bio-cellulose sheet mask, characterized in that the support is inserted.
In the method for manufacturing a multi-layer bio-cellulose sheet mask,
forming a bio-cellulose layer;
coating a hydrogel solution on the bio-cellulose layer; and
Cooling and gelling the coated hydrogel solution to form a hydrogel layer;
The method of claim 1 comprising a multi-layer bio-cellulose sheet mask.
13. The method of claim 12,
Before the step of forming the bio-cellulose layer,
Method for manufacturing a multi-layer bio-cellulose sheet mask, characterized in that it further comprises the step of forming a release film layer.
13. The method of claim 12,
After forming the hydrogel layer,
Forming a release film on the hydrogel layer to prepare a multi-layer bio-cellulose sheet; and
Cutting the multi-layer bio-cellulose sheet to prepare a multi-layer bio-cellulose sheet mask;
Method for producing multi-layer bio-cellulose sheet marks, characterized in that it further comprises.
13. The method of claim 12,
In the step of forming the hydrogel layer,
The method for producing a multi-layer bio-cellulose sheet mask, characterized in that the hydrogel layer contains one selected from the group consisting of a pigment, beads, raw material, and combinations thereof.
13. The method of claim 12,
In the step of forming the hydrogel layer,
A method of manufacturing a multi-layer bio-cellulose sheet mask, characterized in that the hydrogel layer is printed with an image of at least one form selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces.
delete 13. The method of claim 12,
The hydrogel layer,
A method of manufacturing a multi-layer bio-cellulose sheet mask, characterized in that the thickness is 0.5 mm to 2 mm.
In the method for manufacturing a multi-layer bio-cellulose sheet mask,
Preparing a molded tray on which an intaglio pattern is formed;
mounting the bio-cellulose molded in the same shape as the mold-type tray in the tray;
spraying the hydrogel solution onto the tray on which the bio-cellulose is mounted; and
Cooling and gelling the hydrogel solution to form a hydrogel layer;
The method of claim 1 comprising a multi-layer bio-cellulose sheet mask.
20. The method of claim 19,
In the step of forming the hydrogel layer,
The method for producing a multi-layer bio-cellulose sheet mask, characterized in that the hydrogel layer contains one selected from the group consisting of a pigment, beads, raw material, and combinations thereof.
20. The method of claim 19,
In the step of forming the hydrogel layer,
A method of manufacturing a multi-layer bio-cellulose sheet mask, characterized in that the hydrogel layer is printed with an image of at least one form selected from the group consisting of animals, plants, characters, natural shapes, geometric patterns, and human faces.
delete 20. The method of claim 19,
In the step of spraying the hydrogel solution,
A method of manufacturing a multi-layer bio-cellulose sheet mask, characterized in that spraying so that the sprayed hydrogel solution has a thickness of 0.5 mm to 2 mm.

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