Easily-torn double-sided adhesive tape

Abstract

The utility model relates to the technical field of adhesive tapes, in particular to an easy-to-tear double-sided adhesive tape. According to the technical scheme, the winding device comprises two protection discs which are symmetrically arranged, and the same winding shaft is fixedly installed on the opposite sides of the two protection discs and located in the center; the adhesive tape main body comprises an adhesive tape base body, a plurality of isolating membranes, convex electrostatic membranes and grooves, the isolating membranes are adhered to the top of the adhesive tape base body, the isolating membranes are linearly and equidistantly distributed along the isolating membranes, the convex electrostatic membranes are fixedly mounted at one ends of the isolating membranes, the grooves are formed in the other ends of the isolating membranes, and every two adjacent isolating membranes are connected end to end. According to the utility model, the two adjacent isolating membranes are crossed and mutually covered, and the convex electrostatic membrane is matched with the groove, so that the convex electrostatic membrane is easy to separate from the groove, the convex electrostatic membrane is pulled to uncover the isolating membrane, and the isolating membrane is uncovered to the bottom membrane to completely separate the adhesive tape base body from the isolating membrane, thereby achieving the effect of easy tearing.

Description

Technical Field

[0001] This utility model relates to the field of adhesive tape technology, and in particular to an easy-peel double-sided adhesive tape. Background Technology

[0002] Double-sided tape is an adhesive product widely used in many fields such as daily life and industrial production. Double-sided tape is usually composed of three parts: a substrate, an adhesive, and a release liner. It is bonded by the adhesive, the substrate gives the tape a certain strength and shape stability, and the release liner protects the adhesive layer before the tape is used, preventing it from being contaminated or prematurely bonded.

[0003] Double-sided tape is typically rolled into a disc, with the adhesive applied to the substrate and protected by two release liner sheets. However, when using double-sided tape, the release liner sheets are attached to the adhesive, making them difficult to remove. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art where release paper adheres to the adhesive and is difficult to remove, and to propose an easy-to-peel double-sided adhesive tape.

[0005] The technical solution of this utility model is: an easy-to-peel double-sided adhesive tape, comprising two symmetrically arranged protective discs, wherein a common take-up shaft is fixedly installed on one side of the two protective discs facing each other and located at the center;

[0006] The tape body includes a tape substrate, a release film, a convex electrostatic film, and a groove. The release film is pasted on the top of the tape substrate. Multiple release films are provided and are distributed equidistantly along the release film in a straight line. The convex electrostatic film is fixedly installed at one end of the release film, and a groove is opened at the other end of the release film. Two adjacent release films are connected end to end, and the convex electrostatic film covers the groove.

[0007] The tape substrate is wound onto the curved surface of the take-up shaft.

[0008] Optionally, when the convex electrostatic film covers the groove, the top surface of the convex electrostatic film is flush with the top surface of the isolation film.

[0009] Optionally, one end of the isolation membrane has an outward protrusion, and the outwardly protruding electrostatic film is fixedly installed at the center of the end of the outwardly protruding part. The thickness of the outwardly protruding part is twice the thickness of the outwardly protruding electrostatic film.

[0010] Optionally, a concave portion is formed at the other end of the isolation membrane, the groove is formed in the middle of the concave portion, a bottom membrane is fixedly installed at the end of the concave portion, and a cover membrane is fixedly installed at the end of the convex portion near the side, the bottom membrane covering the top of the cover membrane.

[0011] Optionally, the bottom surface of the cover film is flush with the bottom surface of the separator film, the top surface of the bottom film is flush with the top surface of the separator film, and the thickness of the cover film plus the thickness of the bottom film is the same as the thickness of the separator film.

[0012] Optionally, both the cover film and the bottom film adopt a right-angled triangular structure, and a docking film is fixedly installed at the right angle of the cover film.

[0013] Optionally, the docking membrane is semi-circular, and its two ends are respectively connected to the cover membrane and the concave portion.

[0014] Optionally, the tape body is pulled outward from the concave portion towards the convex portion, and the convex electrostatic film is pulled inward towards the concave portion to separate the tape substrate and the release film.

[0015] Optionally, the tape substrate is made of polypropylene film, and both the upper and lower sides of the tape substrate are coated with adhesive, and the release film is made of silicone-coated paper.

[0016] Optionally, the two protective discs sandwich the sides of the adhesive tape substrate, and the protective discs are made of polyethylene round plates.

[0017] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0018] This invention uses two adjacent release films to cross and cover each other, and utilizes the cooperation between the convex electrostatic film and the groove to make the convex electrostatic film easy to separate from the groove. Pulling the convex electrostatic film will peel off the release film. When the release film is peeled off to the bottom film, the adhesive tape base and the release film are completely separated, achieving an easy-to-tear effect.

[0019] Furthermore, by pulling out the main body of the tape in the opposite direction to tearing the release film, the release film on the inner ring of the tape is prevented from being peeled off when the outer ring of the tape is pulled out, thus avoiding the inner ring of the tape substrate surface being uncovered by the release film.

[0020] Furthermore, by connecting the cover film and the concave portion through the mating membrane, two adjacent isolation films are connected together. Therefore, when one isolation film is torn open, multiple isolation films can be peeled open in succession. The two adjacent isolation films can be separated by pulling them in opposite directions. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of one embodiment of the present invention is provided;

[0022] Figure 2 This is a schematic diagram of the tape substrate structure;

[0023] Figure 3 This is a schematic diagram of the isolation membrane structure.

[0024] Reference numerals: 1. Protective disc; 2. Adhesive tape substrate; 3. Release film; 4. Outward convex part; 5. Inward concave part; 6. Outward convex electrostatic film; 7. Groove; 8. Covering film; 9. Bottom film; 10. Butt film; 11. Rewinding shaft. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] This embodiment proposes an easy-peel double-sided adhesive tape, such as... Figure 1 and Figure 2 As shown, it includes two symmetrically arranged protective discs 1, and a common winding shaft 11 is fixedly installed on one side of the two protective discs 1 facing each other and located at the center.

[0032] like Figure 2 and Figure 3 As shown, the tape body includes a tape substrate 2, a release film 3, an outwardly convex electrostatic film 6, and a groove 7. The tape substrate 2 is wound on the arc surface of the take-up shaft 11. Two protective discs 1 clamp the sides of the tape substrate 2. The protective discs 1 are made of polyethylene round plates, and the tape substrate 2 is made of polypropylene film. Both the upper and lower sides of the tape substrate 2 are coated with adhesive.

[0033] A release film 3 is attached to the top of the tape substrate 2. Multiple release films 3 are arranged equidistantly along a straight line. The release films 3 are made of silicone-coated paper and protect the adhesive on the surface of the tape substrate 2. A convex electrostatic film 6 is fixedly installed at one end of the release film 3, and a groove 7 is formed at the other end. Adjacent release films 3 are connected end-to-end, with the convex electrostatic film 6 covering the groove 7. Since there is no adhesive between the convex electrostatic film 6 and the groove 7, the release film 3 can be separated from the tape substrate 2 by peeling off the convex electrostatic film 6, achieving an easy-to-tear effect.

[0034] One end of the release liner 3 has a protruding portion 4. A protruding electrostatic film 6 is fixedly installed at the center of the end of the protruding portion 4. The thickness of the protruding portion 4 is twice the thickness of the protruding electrostatic film 6. When the protruding electrostatic film 6 covers the groove 7, the top surface of the protruding electrostatic film 6 is flush with the top surface of the release liner 3. This is to prevent the protruding electrostatic film 6 from overlapping with the groove 7 and causing a bulge when the tape body is wound onto the take-up shaft 11, resulting in part of the tape substrate 2 being exposed to air.

[0035] like Figure 3 As shown, a recessed portion 5 is formed at the other end of the release liner 3, and a groove 7 is formed in the middle of the recessed portion 5. A bottom film 9 is fixedly installed at the end of the recessed portion 5, and a cover film 8 is fixedly installed at the end of the protruding portion 4 near the side. The bottom film 9 covers the top of the cover film 8. The bottom surface of the cover film 8 is flush with the bottom surface of the release liner 3, and the top surface of the bottom film 9 is flush with the top surface of the release liner 3. The thickness of the cover film 8 and the thickness of the bottom film 9 are the same as the thickness of the release liner 3. Multiple release films 3 are completely covered on the tape substrate 2 by connecting adjacent release films 3 end to end.

[0036] In this embodiment, two adjacent isolation films 3 cross and cover each other, and the convex electrostatic film 6 cooperates with the groove 7 to make the convex electrostatic film 6 easy to separate from the groove 7. Pulling the convex electrostatic film 6 will peel off the isolation film 3. The isolation film 3 is peeled off to the bottom film 9 to completely separate the tape base 2 from the isolation film 3, so as to achieve the effect of easy tearing.

[0037] Example 2

[0038] Based on Example 1, this example proposes an easy-peel double-sided adhesive tape, such as... Figure 3As shown, the tape body is pulled out from the concave part 5 towards the convex part 4, and the convex electrostatic film 6 is pulled towards the concave part 5 to separate the tape substrate 2 and the release film 3.

[0039] Both the cover membrane 8 and the bottom membrane 9 adopt a right-angled triangular structure, and the docking membrane 10 is fixedly installed at the right angle of the cover membrane 8.

[0040] The mating membrane 10 is semi-circular, with the two ends of the mating membrane 10 connected to the cover membrane 8 and the concave portion 5, respectively. By connecting the cover membrane 8 and the concave portion 5 through the mating membrane 10, two adjacent isolation membranes 3 are connected together. Therefore, when one isolation membrane 3 is torn open, multiple isolation membranes 3 can be peeled open in succession. The two isolation membranes 3 can be separated by pulling two adjacent isolation membranes 3 in opposite directions.

[0041] Since the tape body is wound on the take-up shaft 11, in the tape body wound into several turns, the tape substrate 2 at the outer turn adheres to the surface of the release film 3 at the inner turn. Because the direction of pulling out the tape body is opposite to the direction of tearing the release film 3, when the tape body is pulled apart, the tape substrate 2 at the outer turn will not pull the release film 3 at the inner turn, resulting in the tape substrate 2 at the inner turn not being covered by the release film 3.

[0042] In this embodiment, by pulling out the tape body in the opposite direction to tearing the release film 3, the release film 3 on the inner tape body is not peeled off when the outer tape body is pulled out, thus preventing the tape substrate 2 surface at the inner ring position from being covered by the release film 3.

[0043] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An easy-peel double-sided adhesive tape, characterized in that, include: Two protective discs (1) are symmetrically arranged, and the same winding shaft (11) is fixedly installed on one side facing each other and at the center of the two protective discs (1). The tape body includes a tape substrate (2), a release film (3), an outwardly convex electrostatic film (6), and a groove (7). The release film (3) is pasted on the top of the tape substrate (2). Multiple release films (3) are provided and are distributed in a straight line at equal intervals along the release film (3). The outwardly convex electrostatic film (6) is fixedly installed at one end of the release film (3). The groove (7) is opened at the other end of the release film (3). Two adjacent release films (3) are connected end to end. The outwardly convex electrostatic film (6) covers the groove (7). The tape substrate (2) is wound onto the arc surface of the take-up shaft (11).

2. The easy-peel double-sided adhesive tape according to claim 1, characterized in that: When the convex electrostatic film (6) covers the groove (7), the top surface of the convex electrostatic film (6) is flush with the top surface of the isolation film (3).

3. The easy-peel double-sided tape according to claim 1, characterized in that: The isolation membrane (3) has an outward protrusion (4) at one end, and the outwardly protruding electrostatic membrane (6) is fixedly installed at the center of the end of the outwardly protruding part (4). The thickness of the outwardly protruding part (4) is twice the thickness of the outwardly protruding electrostatic membrane (6).

4. The easy-peel double-sided tape according to claim 3, characterized in that: The other end of the isolation membrane (3) has a concave portion (5), the groove (7) is formed in the middle of the concave portion (5), the bottom membrane (9) is fixedly installed at the end of the concave portion (5), and the end of the convex portion (4) and near the side is fixedly installed with a covering membrane (8), and the bottom membrane (9) covers the top of the covering membrane (8).

5. The easy-peel double-sided adhesive tape according to claim 4, characterized in that: The bottom surface of the cover film (8) is flush with the bottom surface of the isolation film (3), the top surface of the bottom film (9) is flush with the top surface of the isolation film (3), and the thickness of the cover film (8) plus the thickness of the bottom film (9) is the same as the thickness of the isolation film (3).

6. The easy-peel double-sided adhesive tape according to claim 5, characterized in that: Both the cover film (8) and the bottom film (9) adopt a right-angled triangular structure, and a docking film (10) is fixedly installed at the right angle of the cover film (8).

7. The easy-peel double-sided adhesive tape according to claim 6, characterized in that: The docking membrane (10) is semi-circular, and the two ends of the docking membrane (10) are respectively connected to the covering membrane (8) and the concave portion (5).

8. The easy-peel double-sided adhesive tape according to claim 1, characterized in that: The tape body is pulled out from the concave part (5) towards the convex part (4), and the convex electrostatic film (6) pulls the tape substrate (2) and the release film (3) towards the concave part (5).

9. The easy-peel double-sided tape according to claim 1, characterized in that: The tape substrate (2) is made of polypropylene film, and both the upper and lower sides of the tape substrate (2) are coated with adhesive. The release film (3) is made of silicone paper.

10. The easy-peel double-sided adhesive tape according to claim 1, characterized in that: The two protective discs (1) sandwich the sides of the tape substrate (2), and the protective discs (1) are made of polyethylene round plates.

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