Gel sheet

Abstract

To provide a method for allowing a gel-state sheet body to be put on the human body and face and allowing it to be put on a three-dimensional shape of the face without difficulty, and a product in which a medicinal solution and a gel-state sheet are enclosed.SOLUTION: A gel-state sheet is provided with cut parts 19 formed by cutting blades on a front surface 14, a back surface 15, or both surfaces, thereby portions of the same sheet 1 and arbitrary portions have different high stretchabilities, so that the sheet can be applied so as to correspond to the whole or a part of a convex shape of a nose portion 3, convex shapes of both right and left cheek portions 4, a convex shape of a chin portion 13, an area around a neck base, or a convex shape of an elbow portion, which conform to a three-dimensional shape of the human body.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a gel-like sheet that adheres well to the skin. [Background technology]

[0002] It can be used by punching out a gel sheet and applying it to a person's skin or around the face and neck.

[0003] JP 2020-81223 A discloses a manufacturing method in paragraph

[0027] of the specification, which states that "...the integrity of the cellulose structure can be maintained."

[0004] JP 2021-532283 A discloses in paragraph

[0013] of the specification that "it has good adhesion, a comfortable fit, and good water absorption, and is resistant to tearing and easy to handle without laminating a separate support film, and has the effect of reducing manufacturing time and costs."

[0005] Japanese Patent Publication No. 6938147 discloses in paragraph

[0007] of the specification that "An object of the present invention is to provide a biocellulose-containing sheet containing a cosmetic active ingredient, which improves transdermal delivery of the cosmetic active ingredient." [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2020-81223 [Patent Document 2] Special Publication No. 2021-532283 [Patent Document 3] Patent No. 6938147 Summary of the Invention [Problem to be solved by the invention]

[0007] When a conventional flat gel sheet is applied to the convex shape of the nose, or the convex shapes of both cheeks, or the convex shape of the chin, along the three-dimensional shape of the face, the area of ​​the sheet differs from the area of ​​the face, so the flat sheet cannot be applied tightly to cover the entire face.Therefore, an improvement in the gel sheet that can cover the convex shapes of the nose, cheeks, and chin is needed.

[0008] That is, in the case of conventional flat gel sheets, the area of ​​the flat body differs from the area of ​​the three-dimensional shape, and therefore the periphery of the convex shape is cut out along a notch line to expose the skin when applied, which results in skin exposure, and an improvement is required so that the sheet can be applied tightly to cover the entire face and achieve the pharmaceutical efficacy of a uniform application. [Means for solving the problem]

[0009] The present invention solves the problem by providing a gel-like sheet comprising a gel-like sheet containing a medicinal solution that can be applied to cover a part of the human body, the sheet having cuts extending from the outside to the inside of at least one of the front and back surfaces of the area facing at least one of the convex and concave parts of the part of the human body, the cuts not reaching from one surface to the other surface opposite the one surface, and the elasticity of the part with the cuts and the part without the cuts being different from each other. [Effects of the Invention]

[0010] The gel sheet of the present invention can be applied by tightly adhering the sheet body to cover the entire three-dimensional area of ​​the face, so that the medicinal ingredients contained in the gel sheet can be evenly applied to the entire skin, providing a product that provides uniform pharmaceutical efficacy to the exposed skin. [Brief explanation of the drawings]

[0011] [Figure 1] 1A and 1B are cross-sectional views of a sheet according to an embodiment of the present invention, and FIG. 1C is a perspective view of the sheet. [Figure 2] 1 is a manufacturing process diagram of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The gel-like sheet 1 of the present invention comprises a gel-like sheet body 23 containing a medicinal solution that is attached to cover a part of the human body, and the sheet body 23 has a cut portion 19 extending from the outside to the inside of at least one of the front surface 14 and the back surface 15 in an area facing at least one of the convex and concave parts of the part of the human body, the cut portion 19 not reaching from the one surface 14 (15) to the other surface 15 (14) opposite the one surface 14 (15), and the elasticity of the part having the cut portion 19 and the part not having the cut portion 19 differ from each other.

[0013] Thus, the present invention is a sheet 1 in which a gel-like sheet (hereinafter referred to as "sheet") 1 is punched into a shape that can be attached to the human body and face, and the sheet body (hereinafter referred to as flat body 23, for example) covers the three-dimensional shape that faces the face and can be attached closely.

[0014] The cuts 19 are cut from the outside to the inside of at least one of the front surface 14 and the back surface 15, not reaching from one surface 14 (15) to the other surface 15 (14) opposite the one surface 14 (15), and are in a so-called half-cut state. That is, the thickness and elasticity of the sheet 1 of the same sheet 1 of the plane body 23 are different depending on the half-cut state of the cuts 19 provided in any region, and when attached, any region can stretch or stretch in any direction 26.

[0015] The half-cut region (portion) having the cuts 19 is provided with a distance 26 that extends in a more flexible direction than the thickness of the unprocessed, non-half-cut region (portion) of the sheet 1. Therefore, when the sheet body is pulled and attached, the flat body of the processed region (portion) is stretched and expanded more freely than the unprocessed stretchable region (portion), generating a higher stretchability that can cover the entire three-dimensional shape.

[0016] The half-cut state of the cut portion 19 is shown in Figure 1A, which shows the cross section of the cut portion 19, and the shape of the cut made by the cutting blade is what is called a triangular cross section. The cutter blade shape in Figure A refers to a state in which the wall surfaces d5 and e6 that form the triangular cross section do not penetrate through to the opposite surface. In other words, the cut portion 19 extends from the outside 17 of the surface 14 to the inside 18, and does not reach the back surface 15 opposite the surface 14. Multiple cut portions 19 with triangular cross sections as shown in Figure A are formed.

[0017] The half-cut state of the incision 19 is shown in Figure 1B, which shows the cross section of the incision 19, and similar to the cutting blade, the incision 19 is formed in a half-cut state of a depression 25 formed by a molding die having the shapes of recesses 7 and protrusions 8 on the cross section 16 of the sheet 1. The incision 19 in Figure B has a so-called cross-sectional recess shape, and multiple incisions 19 are formed by the recesses 7 and protrusions 8.

[0018] FIG. 1C is a perspective view of the area where the cutouts 19 are provided, and a plurality of cutouts 19 each having a triangular or recessed cross section are formed lengthwise and crosswise.

[0019] The area where the cutout 19 is provided has a half-cut processing of any of the cutouts 19 in cross-sectional view A, cross-sectional view B, and oblique view C in Figure 1, and any area can be pulled and stretched in any direction 26, allowing the sheet 1 to cover and attach the shapes of the recesses 7 and protrusions 8.

[0020] The area where the cutouts 19 of the present invention are provided is an area facing the entire or partial convex shape of the nose 3, the convex shape of both cheeks 4, the convex shape of the ears, the convex shape of the chin 13, or the convex shape around the neck, all of which face the three-dimensional shape of a person. By providing the cutouts 19, the sheet 1 can be stretched in any direction to obtain a distance that allows it to expand and contract, forming an area in a half-cut state 26 where the flat body 23 is stretched and expanded.

[0021] The area of ​​the sheet 1 facing the convex parts of the face is configured as a 26-sheet 1 that can be stretched and expanded in any direction due to the half-cut state of the cut parts 19, and can be stuck to cover the whole skin in close contact, so that the medicine contained in the sheet 1 is evenly applied to the whole skin and the efficacy and effect of the medicinal ingredients can be uniformly obtained on the skin while experiencing the moisturizing effect with excellent adhesion.

[0022] In the present invention, incisions 19 are provided on the front surface 14 of the sheet 1 of the flat body 23 that faces the three-dimensional shape of the face, or on both the front surface 14 and the back surface 15, i.e., from the outside 17 to the inside 18 of the cross section 16 of the sheet 1, with the tip of a cutting blade or a needle tip (hereinafter referred to as "cutting blade"), forming a half-cut state of the sheet 1. The product specifications for the front surface 14 or both the front surface 14 and the back surface 15, for example, from both surfaces, are set so that the tips of the cutting blades are offset from each other as they cut from the outside 17 to the inside 18 of the cross section 16 of the sheet 1. For example, the cuts may be made on one surface 14 in the direction from the outside 17 to the inside 18 of the cross section 16 of the sheet 1. Setting the product specifications requires providing incisions 19 in the gel-like sheet to be used and verifying that the safety and stability of the product are ensured.

[0023] The half cuts made on the cross section 16 of the sheet 1 are not punched out, but rather the tips of the cutting blades from the front surface 14 and the back surface 15 are offset from each other. In other words, the tips of the cutting blades from the front surface 14 or the back surface 15 do not reach the back surface 15 or the front surface 14.

[0024] The thickness of the biocellulose sheet can be set arbitrarily, but for example, the cutting blades that cut from both sides are set so that the tips of the cutting blades are offset from each other, and for example, for a thickness of 200 microns, the depth of the cutting edge of the front surface 14 and the back surface 15 from each other is 50 to 100 microns from the front surface 14, and the offset tip of the cutting blade from the back surface 15 is 50 to 100 microns.

[0025] The depth of the cut by the tip of the cutting blade is set and verified by making a prototype for each product specification and verifying it on a monitor, since the composition, thickness, or elasticity of the sheet 1 differs for each product specification. In this case, the tip of the cutting blade, which is cutting from the outside to the inside of at least one of the front and back surfaces, does not reach from one surface to the other surface opposite the one surface.

[0026] In the present invention, the thickness of the sheet 1 in any area of ​​the flat body 23 of the same continuous sheet 1 facing the three-dimensional shape of the face is thinned by the cuts 19 so that it can be pulled and stretched freely in any direction in a half-cut state 26. Because the sheet 1 is configured to be thin, the cuts 19 allow it to easily cover the three-dimensional shape with enhanced stretchability 26, allowing it to be freely stretched and stretched freely in the vertical and horizontal directions. The cuts 19 may also be provided on a separate mask or point mask divided into multiple pieces.

[0027] The sheet 1 having the cuts 19 of the present invention can be freely stretched and expanded 26, allowing it to cover and adhere to a three-dimensional shape without exposing the skin, and has the function of fitting any area or stretching from the center of the face outward.

[0028] The applicant has already obtained Patent No. 6228325, which features upper and lower tabs separated by a cut line that fit the area around the wings of the nose or lift up the chin and both cheek areas and stimulate the nasolabial folds. By applying this function to the present invention, an even better fit and lifting sensation can be achieved.

[0029] The sheet 1 is spread on a flat body 23 and attached around the longitudinal direction 21 of the face, and it is preferable that the half-cut region of the cutout 19 is stretchable and expandable in any direction, and the cutout 19 is provided at any location in the nose 3, cheeks 4, chin 13 or neck area that requires a larger area in the region facing the three-dimensional shape.

[0030] The cross section 16 where the cut section 19 is provided functions as a holding section 22 in which a medicinal liquid containing a drug is stored. More specifically, the cross section 16 in a half-cut state in which a cutting blade has cut into the cross section 16 from the outside 17 to the inside 18 from the front surface 14, the back surface 15, or both surfaces of the sheet 1 has a holding section 22 in which the medicinal liquid is stored in the cut surface formed with wall surfaces d5 and e6 (Fig. 1A) similar to the shape of the cutting blade, or in the groove 24 of the gap generated in the cut surface and the recess 25 (Fig. 1B) in the shape of the recess 7 and the protrusion 8 formed by molding.

[0031] The effect of the holding portion 22 in which the medicinal liquid is stored is that when a massage is performed by lightly pressing the pads of the fingers against the outer surface of the sheet 1 attached to the face, the effect of promoting blood flow in the exposed skin by repeating the pressing massage can be expected, or dirt in the pores or unnecessary keratin can be collected in the holding portion 22 and removed by peeling it off.

[0032] The thickness of the gel-like sheet that constitutes sheet 1, for example, a biocellulose sheet, is optional, but is preferably approximately 50 to 300 microns in consideration of cost and the efficiency of the manufacturing process for creating cutouts 19. A thin chemical fiber film for a separator, with an arbitrary basis weight of approximately 30 (g / mm2), that is easily cut with a cutting blade, is attached to both the front surface 14 and the back surface 15, and is made of, for example, water-repellent polyester terephthalate or polypropylene. When applying to the face, the separator is removed.

[0033] The separator to be provided on any of the front and back surfaces of the sheet 1 may be cut by a cutting blade while the sheet is still attached, or may be attached in a later secondary process. The product specifications for the separator to be attached to the gel sheet can be determined based on the method of application to the human body and the manufacturing process sequence.

[0034] Sheet 1 is made of a gel-like sheet such as a biocellulose or xanthan gum sheet, collagen sheet, hydrogel sheet, polymer gel sheet, or cataplasm sheet, which is preferably applied to the human body to provide medicinal effects, and is a cosmetic or quasi-drug material containing a medicinal solution, and is an impregnated product such as a face mask sheet, a sheet for the neck area (décolleté), a sheet for the eyes, a massage sheet, or a moisturizing protective sheet for the hands, elbows, or body, and is sealed in a pharmaceutical packaging bag together with the medicinal solution.

[0035] The sheet 1 may be a gel sheet, such as a biocellulose or xanthan gum sheet, a collagen sheet, a hydrogel sheet, or a polymer gel sheet, and may be composed of, for example, a material that provides strength and feel specific to fibers, or Chinese herbs or oils, or natural fibers, chemical fibers, or heat-absorbing materials.

[0036] Medical sheets are pharmaceutical products used in personal medical care and contain medicinal substances. They are impregnated products made by sterilizing gel sheets using ethylene oxide gas, gamma irradiation, or an autoclave, then impregnating them with liquids such as alcohol or povidone-iodine and sealing them in pharmaceutical-compliant containers.

[0037] The cutouts 19 are produced by forming half-cuts on the cross section 16 of the area of ​​the sheet 1 that faces the three-dimensional shape of the face by cutting from the outside 17 to the inside 18 of the front surface 14, back surface 15, or both surfaces with one or more cutting blades. The half-cut state allows the sheet 1 to stretch in any direction, making it flexible. The cutouts 19 are also produced by combining the sheet 1 with a mold having recesses 7 and protrusions 8 when the sheet 1 solidifies and forms the flat body 23. The presence or absence of a chemical fiber film for the separator is optional, depending on the application method and product specifications.

[0038] The medicinal agent contained in the sheet 1 has ingredients such as charcoal, mud, starches, liquid, cream, powder, or paste that provide the efficacy or unique effects of cosmetics, quasi-drugs, or pharmaceuticals.

[0039] The sheet 1 is optionally provided with holes or hole covers in the area facing the left and right eye areas 2 or nose area 3, left and right cheek areas 4 or mouth area 20, left and right ear areas or chin areas 13, or neck or the area around the neck (décolleté) of the face, or with cutouts around the eye areas 2 or mouth area 20, and with half-cut cutouts that can be attached to cover the protrusions 7 and recesses 8. Furthermore, a plurality of holes smaller than the mouth area 20 may be provided in the area of ​​the hole facing the mouth area 20 to allow mouth breathing.

[0040] FIG. 2 is a diagram of the manufacturing process.

[0041] The process flow 10 for the sheet 1 is that the sheet 1 is punched out from a gel-like sheet roll 11, or a single sheet, or a stack of sheets, using a Thomson blade or a die cutter and a slitting blade.

[0042] Generally, conventional mask sheets have the drawback of leaving part of the skin exposed, making it difficult to apply the medicinal liquid evenly.This is because the area that can be attached to the three-dimensional shape of the face is different from the area of ​​the flat surface of the face mask sheet.In order to overcome this difference in area, for example, the area around the convex shape of the nose is cut out, so part of the skin is exposed when the mask is attached.

[0043] Next, conventional products, which are constructed by cutting out the periphery of the convex shape of the nose with cutout lines, have the vertical direction of the nose bridge as the center, and are constructed with cutout lines extending from the vicinity of both roughly symmetrical nostrils toward the space between the eyebrows, for example, and the cutout lines eliminate the difference in area.

[0044] In other words, when a mask sheet with cutout lines extending from the vicinity of both nostrils toward the space between the eyebrows is applied, the skin near the cutout lines is exposed and not covered by the mask sheet, and the medicinal liquid contained in the mask sheet cannot be applied and adhered properly, resulting in uneven efficacy of the ingredients. [Explanation of symbols]

[0045] 1 sheet 2 Eyes 3 Nose 4 Cheeks 5 Cut wall d 6 Notched wall e 7 recess 8 Convex part 9 Cut 10 Process flow 11 rolls 12 Gel sheets 13 Jaw 14 Surface 15 Back side 16 cross sections 17 outside 18 Inside 19 Notch 20 Mouth 21 Vertical 22 Holding part 23 Planar body 24 groove 25 depression 26 Extend

Claims

1. A gel-like sheet body containing a medicinal solution is provided, which is attached to cover a part of the human body, the sheet body has a cut portion extending from the outside to the inside of at least one of the front and back surfaces of an area facing at least one of a convex portion and a concave portion of the human body, the cut portion not reaching from the one surface to the other surface opposite the one surface; The gel-like sheet is characterized in that the portion having the cut portions and the portion not having the cut portions have different elasticity.

2. The gel-like sheet according to claim 1 , wherein the cuts have a triangular or concave cross section.

3. The gel sheet according to claim 1 , wherein the cut portions are formed at a plurality of locations.

4. 2. The gel sheet according to claim 1, wherein the cut portion has a holding portion for storing the medicinal solution.

5. 2. The gel-like sheet according to claim 1, wherein the convex portion of the human body part is at least one of the nose portion of the face, both left and right cheek portions of the face, both left and right ear portions of the face, the chin portion of the face, the area around the neck, and the elbow portions, and the sheet body has the cut portion in the area facing the convex portion of the human body part.

6. 2. The gel-like sheet according to claim 1, wherein the recess in the part of the human body is at least one of the eyes on both sides of the face, the mouth on the face, and the neck, and the sheet has (1) a hole or (2) a hole and a lid that covers the hole in the area facing the recess in the part of the human body, and the cut is formed around the hole or in the lid.

7. 2. The gel-like sheet according to claim 1, wherein the sheet body has a separator on the surface or both surfaces.

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