KR102084790B1 - An adhesive tape - Google Patents

Abstract

The present invention includes a base substrate comprising a first surface; And an adhesive layer applied on the first surface of the base substrate, wherein the base substrate includes a plurality of grooves located on the first surface of the base substrate, and the plurality of grooves are 2n-1 (where , n is a natural portion 2n-1 (where n is a natural number) row groove; And located adjacent to the 2n-1 (where n is a natural number) row groove, and spaced apart from the 2n-1 (where n is a natural number) row groove at a first interval G1, wherein 2n (where n is n) Is a natural number) row and 2n (where n is a natural number) groove portion, wherein the 2n-1 (where n is a natural number) groove portion, 2n-1 (where n is a natural number) row first column home; And 2n-1 (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n-1 row, where n is a natural number, and a second interval G2, wherein 2n Where n is a natural number, and the groove portion includes: a first column groove of 2n (where n is a natural number); And 2n (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n row (n is natural numbers) and a third interval G3, wherein the first interval (G1) ): The second interval (G2) = 1: 0.05 to 0.2, the first interval (G1): the third interval (G3) = 1: relates to the adhesive tape, characterized in that the cutting This easy adhesive tape can be provided.

Description

Adhesive tape {AN ADHESIVE TAPE}

The present invention relates to an adhesive tape, and more particularly to an adhesive tape that is easy to cut.

In general, the adhesive tape wound around the branch pipe is formed on one side or both sides to be used for various purposes.

However, since the conventional adhesive tape is used to cut the adhesive tape using a knife or a sharp tool such as a cutting tool, a separate auxiliary device or a cutting tool must be used to cut the adhesive tape. There was a very uncomfortable problem.

Korea Registration Utility Model 20-0480177

The problem to be solved by the present invention is to provide an easy-to-cut adhesive tape that can be used to easily cut the tape by hand, without using any auxiliary devices or other cutting tools to cut the tape wound on the branch pipe. .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problems, the present invention provides a base substrate comprising a first surface; And an adhesive layer applied on the first surface of the base substrate, wherein the base substrate includes a plurality of grooves located on the first surface of the base substrate, and the plurality of grooves are 2n-1 (where , n is a natural portion 2n-1 (where n is a natural number) row groove; And located adjacent to the 2n-1 (where n is a natural number) row groove, and spaced apart from the 2n-1 (where n is a natural number) row groove at a first interval G1, wherein 2n (where n is n) Is a natural number) row and 2n (where n is a natural number) groove portion, wherein the 2n-1 (where n is a natural number) groove portion, 2n-1 (where n is a natural number) row first column home; And 2n-1 (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n-1 row, where n is a natural number, and a second interval G2, wherein 2n Where n is a natural number, and the groove portion includes: a first column groove of 2n (where n is a natural number); And 2n (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n row (n is natural numbers) and a third interval G3, wherein the first interval (G1) ): The second interval (G2) = 1: 0.05 to 0.2, the first interval (G1): the third interval (G3) = 1: provides an adhesive tape, characterized in that 0.05 to 0.2.

In addition, the present invention includes a base substrate comprising a first surface; And an adhesive layer applied on the first surface of the base substrate, wherein the base substrate includes a plurality of grooves located on the first surface of the base substrate, and the plurality of grooves are 2n-1 (where , n is a natural portion 2n-1 (where n is a natural number) row groove; And located adjacent to the 2n-1 (where n is a natural number) row groove, and spaced apart from the 2n-1 (where n is a natural number) row groove at a first interval G1, wherein 2n (where n is n) Is a natural number) row and 2n (where n is a natural number) groove portion, wherein the 2n-1 (where n is a natural number) groove portion, 2n-1 (where n is a natural number) row first column home; And 2n-1 (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n-1 row, where n is a natural number, and a second interval G2, wherein 2n Where n is a natural number, and the groove portion includes: a first column groove of 2n (where n is a natural number); And 2n (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n row, where n is a natural number, and the third interval G3, wherein n is a natural number. Is a natural row) and the first column groove is located in a region between the 2n-1 (where n is a natural number) row first column groove and the 2n-1 (where n is a natural number) row second column groove. An adhesive tape is provided.

In addition, the present invention is based on the length from the first column groove 2n-1 (where n is a natural number) row to the second column groove 2n-1 (where n is a natural number) row, Provided is an adhesive tape, which means an area from 1/3 to 2/3 points from the first column groove of the 2n-1 (where n is a natural number) row.

In addition, the present invention is the first interval (G1): the second interval (G2) = 1: 0.05 to 0.2, the first interval (G1): the third interval (G3) = 1: 0.05 to 0.2 An adhesive tape is provided.

In addition, the present invention provides an adhesive tape, characterized in that the depth (d2) of the plurality of grooves is formed to 1/3 to 1/2 of the thickness (d1) of the base substrate.

According to the present invention as described above, it is possible to provide an easy-to-cut adhesive tape that can be used to easily cut the tape by hand, without using any auxiliary device or other cutting tool to cut the tape wound on the branch pipe.

In addition, in the present invention, through the structure of the plurality of grooves as described above, it is possible to enhance the longitudinal cutting force of the adhesive tape, thereby unintentionally even if a force to remove in the longitudinal direction of the adhesive tape is applied The problem that the adhesive tape is cut can be solved.

1 is a perspective view showing an adhesive tape according to the present invention.
2 to 4 is a schematic view for explaining a method for producing an adhesive tape according to the present invention.
5 is a schematic view for explaining a method of forming a groove in the adhesive tape according to the present invention.
6 is a flowchart for explaining a method for manufacturing an adhesive tape according to the present invention.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the present embodiments make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

With reference to the accompanying drawings will be described in detail for the practice of the present invention. Regardless of the drawings, like reference numerals refer to like elements, and “and / or” includes each and every combination of one or more of the items mentioned.

Although the first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be the second component within the technical spirit of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” does not exclude the presence or addition of one or more other components in addition to the mentioned components.

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used in a sense that can be commonly understood by those skilled in the art. In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It can be used to easily describe the correlation of a component with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as "below" or "beneath" of another component may be placed "above" the other component. Can be. Thus, the exemplary term "below" can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an adhesive tape according to the present invention.

First, referring to FIG. 1, an adhesive tape 100 according to the present invention may include a base substrate 101 including a first surface; And an adhesive layer 102 applied on the first surface of the base substrate 101, wherein the base substrate 101 includes a plurality of grooves located on the first surface of the base substrate 101. 110, 120).

Meanwhile, the adhesive tape 100 according to the present invention includes a branch pipe 104 for winding the base substrate 101 in a roll form, but the present invention does not limit the presence or absence of the branch pipe 104. .

In this case, the base substrate 101 may be a PET, PVC, PC, PP, or PE material, but does not limit the material of the base substrate in the present invention.

In addition, the adhesive layer 102 may use a known adhesive material, and thus, the material of the adhesive layer is not limited in the present invention.

Hereinafter, the adhesive tape according to the present invention will be described in more detail.

2 to 4 is a schematic view for explaining a method for producing an adhesive tape according to the present invention. At this time, in Figures 2 to 4 a is a cross-sectional view, b and c is a plan view.

5 is a schematic view for explaining a method for forming a groove in the adhesive tape according to the present invention, Figure 6 is a flow chart for explaining a method for manufacturing the adhesive tape according to the present invention.

First, referring to FIGS. 2A, 2B, and 6, a method of manufacturing an adhesive tape according to the present invention includes preparing a base substrate 101 including a first surface (S110).

As described above, the base substrate 101 may be a PET, PVC, PC, PP, or PE material, but does not limit the material of the base substrate in the present invention.

In this case, the thickness d1 of the base substrate 101 may be 19 to 25 μm, but the thickness of the base substrate 101 is not limited in the present invention.

Next, referring to FIGS. 3A, 3B, 3C, and 6, the method of manufacturing the adhesive tape according to the present invention may include a plurality of grooves 110 and 120 formed on the first surface of the base substrate 101. Forming step (S120).

In this case, the depth d2 of the plurality of grooves 110 and 120 may be formed to be 1/3 to 1/2 of the thickness d1 of the base substrate 101.

For example, when the thickness d1 of the base substrate 101 is 20 μm, the depth d2 of the plurality of grooves 110 and 120 may be 10 μm.

Hereinafter, a plurality of grooves 110 and 120 formed on one surface of the base substrate 101 according to the present invention will be described in more detail.

First, as shown in FIGS. 3A, 3B, and 3C, the plurality of grooves 110 and 120 are located in a row 2n-1 (where n is a natural number), where n is a natural number. Row groove 110; And are located adjacent to the 2n-1 (where n is a natural number) row groove part 110 and spaced apart from the 2n-1 (where n is a natural number) row groove part 110 at a first interval G1. And 2n (where n is a natural number) row groove portion 120 located in a 2n (where n is a natural number) row.

More specifically, the 2n-1 (where n is a natural number) row groove 110 includes: a first row groove 110a; And a third row groove part 110b disposed to be spaced apart from the first row groove part 110a by a predetermined interval, wherein the 2n row groove part 120 is a first row groove part 110a. A second row groove portion 120a positioned adjacent to the second row groove portion 120a; The fourth row groove part 120b is disposed to be spaced apart from the second row groove part 120a by a predetermined interval and positioned adjacent to the third row groove part 110b.

In this case, as shown in the figure, the second row groove 120a may be defined as being positioned between the first row groove 110a and the third row groove 110b.

3B and 3C, however, the 2n-1 (where n is a natural number) row groove part 110 and the 2n (where n is a natural number) row groove part 120 are respectively formed. In the present invention, the number of the 2n-1 (where n is a natural number) row groove portion 110 and the 2n (where n is a natural number) row groove portion 120 is not limited.

3B and 3C, the 2n-1 (where n is a natural number) row groove 110 includes 2n-1 (where n is a natural number) row first column grooves 111; And 2n-1 (where n is a natural number) row 2n-1 (where n is a natural number) row spaced apart from the first column groove 111 and the second interval G2. It includes.

In addition, the 2n (where n is a natural number) row groove portion 120 includes a first column groove (121) row 2n (where n is a natural number); And 2n (n is a natural number) row second column groove 122 disposed to be spaced apart from the 2n (n is natural number) row first column groove 121 and the third interval G3.

For example, when the first row groove 110a of the 2n-1 (where n is a natural number) row groove 110 is described based on the first row groove 110a, the first row groove 110a is the first row first. Column groove 111; And a first row second column groove 112 spaced apart from the first row first column groove 111 by a second gap G2.

In this case, although the groove of the first row groove part 110a is illustrated as four grooves, the number of the grooves of the first row groove part 110a is not limited in the present invention.

For example, when the second row groove part 120a of the 2n row groove part 120 is described based on the second row groove part 120a, the second row groove part 120a is the second row first part. Thermal groove 121; And a second row second column groove 122 disposed to be spaced apart from the second row first column groove 121 at a third interval G3.

In this case, although the groove of the second row groove portion 120a is illustrated as three, the number of grooves of the second row groove portion 120a is not limited in the present invention.

On the other hand, as described above, the 2n (where n is a natural number) row groove 120 according to the present invention, the first interval (G1) from the 2n-1 (where n is a natural number) row groove 110 Spaced apart.

For example, the second row groove portion 120a of the 2n (where n is a natural number) row groove portion 120 is the first row of the 2n-1 (where n is a natural number) row groove portion 110. It is spaced apart from the groove portion 110a at a first interval G1.

In this case, the first interval G1 may be 0.1 μm to 0.2 μm, but the present invention does not limit the first interval G1.

In addition, as described above, the 2n-1 (where n is a natural number) row groove 110 includes a first column groove 111 in a 2n-1 (where n is a natural number) row; And 2n-1 (where n is a natural number) row 2n-1 (where n is a natural number) row spaced apart from the first column groove 111 and the second interval G2. It includes.

For example, when the first row groove 110a of the 2n-1 (where n is a natural number) row groove 110 is described based on the first row groove 110a, the first row groove 110a is the first row first. Column groove 111; And a first row second column groove 112 spaced apart from the first row first column groove 111 by a second gap G2.

In this case, the second interval G2 may be 0.01 μm to 0.02 μm, but the present invention does not limit the second interval G2.

However, in the present invention, it is preferable that the first interval G1: the second interval G2 = 1: 0.05 to 0.2.

This will be described later.

In addition, as described above, the 2n (where n is a natural number) row groove portion 120 includes a first column groove 121 in a 2n (where n is natural number) row; And 2n (n is a natural number) row second column groove 122 disposed to be spaced apart from the 2n (n is natural number) row first column groove 121 and the third interval G3.

For example, when the second row groove part 120a of the 2n row groove part 120 is described based on the second row groove part 120a, the second row groove part 120a may be a second row first column groove. (121); And a second row second column groove 122 disposed to be spaced apart from the second row first column groove 121 at a third interval G3.

In this case, the third interval G3 may be 0.01 μm to 0.02 μm, but the third interval G3 is not limited in the present invention.

However, in the present invention, it is preferable that the first interval G1: the third interval G3 = 1: 0.05 to 0.2.

This will be described later.

3B and 3C, in the present invention, the 2n (where n is a natural number) row first column groove 121 of the 2n (where n is a natural number) row groove 120 is the above-mentioned. 2n-1 (where n is a natural number) row groove 110 of the 2n-1 (where n is a natural number) row first groove 111 and the 2n-1 (where n is a natural number) row groove 110 And 2n-1 (where n is a natural number) in the region between the second column grooves 112.

In this case, the “between regions” refers to the second column groove 112 in the 2n-1 (where n is a natural number) row in the 2n-1 (where n is a natural number) row. Based on the length up to, 2 n-1 (where n is a natural number) means an area from the first column groove 111 to 1/3 to 2/3 points.

For example, the second row groove portion 120a of the 2n (where n is a natural number) row groove 120 and the first row groove portion of the 2n-1 (where n is a natural number) row groove 110 are provided. Referring to the reference to (110a) as follows.

That is, the second row groove part 120a includes a second row first column groove 121, and the first row groove part 110a includes a first row first column groove 111 and a first row groove. The first row and second column grooves 112 are included.

In this case, the second row first column groove 121 of the second row groove part 120a includes the first row first column groove 111 and the first row groove part 110a of the first row groove part 110a. It is located in the area between the first row second column groove 112 of the ().

In addition, the “between region” refers to the first row first column groove (based on the length from the first row first column groove 111 to the first row second column groove 112). 111) from 1/3 to 2/3 point.

As a result, in the present invention, it is preferable that the first interval G1: the second interval G2 = 1: 0.05 to 0.2, and the first interval G1: the third interval G3 =. 1: It is preferable that it is 0.05-0.2.

In the present invention, the 2n (where n is a natural number) row groove portion 120 of the 2n (where n is a natural number) row first column groove 121 is 2n-1 (where n is a natural number). 2n-1 (where n is a natural number) row first row groove 111 and 2n-1 (where n is a natural number) row row 110 2n-1 (where n is a natural number) It is located in the area between the second row groove 112 of the natural number) row.

In the present invention, the plural grooves are configured to reinforce the longitudinal cutting force of the adhesive tape according to the present invention.

That is, in this invention, cutting of an adhesive tape can be made easy through the some groove as mentioned above.

However, when the plurality of grooves are irregularly present, the longitudinal cutting force of the adhesive tape is also weakened, so that the adhesive tape is cut unintentionally, so that it cannot function as the adhesive tape.

For example, in order to use an adhesive tape, even at the time of peeling off the adhesive tape wound in roll form to the branch pipe of FIG. 1 as mentioned above, the force to remove in the longitudinal direction of the said adhesive tape is applied, and it is unintentionally said There is a problem that the adhesive tape is cut.

Therefore, in the present invention, through the structure of the plurality of grooves as described above, it is possible to strengthen the longitudinal cutting force of the adhesive tape, thereby unintentionally the adhesive even if a force to remove in the longitudinal direction of the adhesive tape is applied The problem that the tape is cut can be solved.

At this time, in the present invention, cutting the adhesive tape, specifically, the base substrate, can be easily cut by applying a force in the width direction of the adhesive tape.

3A, 3B, 3C, and 6, as described above, the method of manufacturing the adhesive tape according to the present invention includes a plurality of grooves (not shown) on the first surface of the base substrate 101. Forming a step (110) (120).

In this case, forming the plurality of grooves 110 and 120 on the first surface of the base substrate 101 may easily form the plurality of grooves 110 and 120 by a roll roll method.

More specifically, referring to FIG. 5, forming the plurality of grooves 110 and 120 in the first surface of the base substrate 101 may include pressing the base roller 10 and the protrusions 21 on the surface thereof. By inserting the base substrate 101 between the rollers 20, a plurality of first base surfaces of the base substrate 101 are formed by the pressing of the protrusions 21 formed on the surface of the pressure roller 20. Grooves 110 and 120 may be formed.

On the other hand, as described above, in the present invention, the thickness (d1) of the base substrate 101 may be 19 to 25㎛, a plurality of grooves (110, formed on the first surface of the base substrate 101) Depth d2 of 120 is preferably formed to 1/3 to 1/2 of the thickness d1 of the base substrate 101.

In this case, the depth d2 of the plurality of grooves 110 and 120 is determined by the heights of the protrusions 21 formed on the base roller 10 and the surface, and thus, the protrusions in the present invention. The height of the 21 is preferably formed to 1/3 to 1/2 of the thickness d1 of the base substrate 101.

On the other hand, although not shown in the drawing, in the present invention, before the step of forming a plurality of grooves (110, 120) in the first surface of the base substrate 101 of the step S120, the base substrate 101 The method may further include irradiating UV to the first surface of the.

Irradiating UV to the first surface of the base substrate 101 is to improve the ductility of the base substrate 101, and as the ductility of the base substrate is improved, the first of the base substrate 101 is improved. In forming the plurality of grooves 110 and 120 on the surface, the plurality of grooves may be formed more easily.

At this time, to irradiate UV to the first surface of the base substrate 101, a known UV irradiator may be used, and the present invention does not limit the type of the UV irradiator.

In addition, the intensity of the irradiated UV may vary depending on the type of the base substrate and the thickness of the base substrate, and does not limit the intensity of the UV in the present invention.

Next, referring to FIGS. 4A, 4B, and 6, as described above, in the method of manufacturing the adhesive tape according to the present invention, the adhesive layer 102 is formed on the first surface of the base substrate 101. It includes a step (S130).

The adhesive layer 102 may use a known adhesive material, and thus, the material of the adhesive layer is not limited in the present invention.

At this time, the thickness of the adhesive layer 102 may be 8 to 10㎛, in the present invention does not limit the thickness of the adhesive layer.

By the above method, the adhesive tape which concerns on this invention can be manufactured.

As described above, the conventional adhesive tape is used to cut the adhesive tape, which is cut using a tool such as a knife or a sharp awl, so that a separate auxiliary device or a cutting tool must be used to cut the adhesive tape. There was a very uncomfortable problem to the user.

In the present invention, however, the adhesive tape can be easily cut through the plurality of grooves as described above.

Further, in the present invention, the first interval G1: the second interval G2 = 1: 0.05 to 0.2 is preferred, and the first interval G1: the third interval G3 = 1: It is preferable that it is 0.05-0.2.

In the present invention, the 2n (where n is a natural number) row groove portion 120 of the 2n (where n is a natural number) row first column groove 121 is 2n-1 (where n is a natural number). 2n-1 (where n is a natural number) of the row groove part 110 and 2n-1 (where n is a natural number) and 2n-1 (where n is a natural number) of the row groove part 110 It is located in the area between the second row groove 112 of the natural number) row.

Therefore, in the present invention, through the structure of the plurality of grooves as described above, it is possible to strengthen the longitudinal cutting force of the adhesive tape, thereby unintentionally the adhesive even if a force to remove in the longitudinal direction of the adhesive tape is applied The problem that the tape is cut can be solved.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

Claims (5)

A base substrate comprising a first side; And
An adhesive layer applied on the first surface of the base substrate,
The base substrate includes a plurality of grooves located on the first surface of the base substrate,
The plurality of grooves may include a 2n-1 (where n is a natural number) row portion located in a 2n-1 (where n is a natural number) row; And located adjacent to the 2n-1 (where n is a natural number) row groove, and spaced apart from the 2n-1 (where n is a natural number) row groove at a first interval G1, wherein 2n (where n is n) Is a natural number row, and includes a groove portion of 2n (n is a natural number) row.
The 2n-1 (where n is a natural number) row groove portion may include a first column groove of 2n-1 (where n is a natural number) row; And 2n-1 (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n-1 row (n is natural numbers) and at a second interval G2,
The 2n (where n is a natural number) row portion may include a first column groove of 2n (where n is a natural number) row; And 2n (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n row (n is natural numbers) and at a third interval G3,
The first interval (G1): The second interval (G2) = 1: 0.05 to 0.2, The first interval (G1): The third interval (G3) = 1: 0.05 to 0.2,
The first interval (G1) is 0.1㎛ to 0.2㎛, the second interval (G2) is 0.01㎛ to 0.02㎛, the third interval (G3), characterized in that the adhesion is 0.01㎛ to 0.02㎛ tape. A base substrate comprising a first side; And
An adhesive layer applied on the first surface of the base substrate,
The base substrate includes a plurality of grooves located on the first surface of the base substrate,
The plurality of grooves may include a 2n-1 (where n is a natural number) row portion located in a 2n-1 (where n is a natural number) row; And located adjacent to the 2n-1 (where n is a natural number) row groove, and spaced apart from the 2n-1 (where n is a natural number) row groove at a first interval G1, wherein 2n (where n is n) Is a natural number row, and includes a groove portion of 2n (n is a natural number) row.
The 2n-1 (where n is a natural number) row groove portion may include a first column groove of 2n-1 (where n is a natural number) row; And 2n-1 (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n-1 row (n is natural numbers) and at a second interval G2,
The 2n (where n is a natural number) row portion may include a first column groove of 2n (where n is a natural number) row; And 2n (where n is a natural number) row second column grooves spaced apart from the first column grooves of the 2n row (n is natural numbers) and at a third interval G3,
The first column groove of 2n (where n is a natural number) is the first column groove of the 2n-1 (where n is a natural number) and the second column groove of the 2n-1 (n is a natural number) row. Located in the area between
The first interval (G1): The second interval (G2) = 1: 0.05 to 0.2, The first interval (G1): The third interval (G3) = 1: 0.05 to 0.2,
The first interval (G1) is 0.1㎛ to 0.2㎛, the second interval (G2) is 0.01㎛ to 0.02㎛, the third interval (G3), characterized in that the adhesion is 0.01㎛ to 0.02㎛ tape. The method of claim 2,
The interregion is based on a length from the first column groove of 2n-1 (where n is a natural number) to the second column groove of 2n-1 (where n is a natural number). Wherein n is a natural number) and means an area from the first row groove to 1/3 to 2/3 point. delete The method according to any one of claims 1 to 3,
Adhesive depth, characterized in that the depth (d2) of the plurality of grooves is formed to 1/3 to 1/2 of the thickness (d1) of the base substrate.

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