Composite adhesive tape and use method thereof

Abstract

The invention relates to a composite adhesive tape and a use method thereof. The composite adhesive tape comprises a base body, a first adhesive part and a second adhesive part, wherein the base body comprises a first base part and a second base part which are connected with each other along the extension direction of the base body; the first adhesive part is arranged on at least one side of the first base part; the second viscous part is arranged on at least one side of the base body, one end of the second viscous part located on the same side as the first viscous part is connected with the first viscous part, the other end of the second viscous part extends to a preset position on the second base part, and the viscosity of the second viscous part needs to be released. According to the scheme, the same adhesive tape can be used for sealing, unsealing and tape splicing of materials, the material replacement efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of adhesive tape technology, and in particular to a composite adhesive tape and a method for using the same. Background Art

[0002] In production and manufacturing, operations such as replacing materials such as film rolls and electrode rolls often occur.

[0003] In the related art, when replacing materials, it is generally necessary to manually remove the tape that seals the materials to unseal the materials; then the new materials are connected to the old materials to complete the roll change.

[0004] However, in the above replacement method, the tape used to seal the material will lose its stickiness after being removed and can no longer be used as a docking tape, resulting in the need to replace new tape during docking, which greatly affects the material replacement efficiency and production costs. Summary of the Invention

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a composite tape and a method of using the same tape, which can use the same tape to achieve sealing, unsealing and docking of materials, thereby improving material replacement efficiency and reducing production costs.

[0006] The first aspect of the present application provides a composite tape, comprising: a base body, the base body comprising a first base portion and a second base portion connected to each other along an extension direction thereof; a first adhesive portion, the first adhesive portion being provided on at least one side of the first base portion; The second adhesive part is arranged on at least one side of the base, one end of the second adhesive part located on the same side as the first adhesive part is connected to the first adhesive part, and the other end extends to a preset position on the second base, and the viscosity of the second adhesive part needs to be released.

[0007] As an optional embodiment, at least a portion of the first area of ​​the second adhesive portion is made of an activated material, and the activated material can generate adhesion under activation.

[0008] As an optional embodiment, the activation material includes at least one of heat-sensitive adhesive, photosensitive adhesive, electrosensitive adhesive and pressure-sensitive adhesive.

[0009] As an optional embodiment, a third adhesive portion is detachably connected to at least a portion of a third region of the second adhesive portion adjacent to the first adhesive portion.

[0010] As an optional embodiment, the third adhesive part includes a first bottom layer provided on the second adhesive part, and a first adhesive layer provided on a side of the first bottom layer away from the second adhesive part.

[0011] As an optional embodiment, at least a portion of the first area of ​​the second adhesive part is made of an activated material that can generate viscosity under activation; and a third adhesive part is detachably connected to at least a portion of the third area of ​​the second adhesive part near the first adhesive part.

[0012] As an optional embodiment, the second adhesive part is detachably connected to a third adhesive part on at least a portion of the third area close to the first adhesive part; and the second adhesive part includes a second adhesive layer provided on at least one side of the substrate and a first isolation layer provided on a side of the second adhesive layer away from the substrate in at least a portion of the second area away from the substrate; the first isolation layer can be separated from the second adhesive layer under the action of external force to release the second adhesive layer.

[0013] As an optional embodiment, the first adhesive portion includes a first adhesive segment and a second adhesive segment connected to each other along its extension direction, and the second adhesive portion located on the same side of the first adhesive portion is connected to the second adhesive segment.

[0014] As an optional embodiment, the viscosity of the first adhesive section and the second adhesive section is the same or different.

[0015] As an optional embodiment, the extension length of the first adhesive section is not less than the extension length of the second adhesive section.

[0016] As an optional embodiment, the first adhesive portion includes an adhesive material coated on at least one side of the first base portion, and the adhesive material is made of a material that becomes adhesive when activated, or is made of a material that is self-adhesive.

[0017] As an optional embodiment, the adhesive tape further includes a magnetic member, which is disposed in the second base portion so that the second base portion can be bent in a direction away from the first adhesive portion under the action of a magnetic force.

[0018] As an optional embodiment, the adhesive tape further comprises a third adhesive layer provided on a side of the base away from the first adhesive portion, and a second isolation layer provided on a side of the third adhesive layer away from the base.

[0019] A second aspect of the present application provides a method for using the aforementioned composite tape, comprising: Adhere the first adhesive portion to the overlapping area of ​​the first object; Applying an external force to the second base portion to bend the second base portion in a direction away from the first adhesive portion, thereby driving an end of the first adhesive portion close to the second base portion to separate from the overlapping area D; The adhesiveness of the second adhesive portion is released, and the adhesive second adhesive portion is attached to a second object.

[0020] As an optional embodiment, the step of adhering the first adhesive portion to the overlapping area of ​​the first object includes: The end of the first adhesive portion away from the second base is adhered to the outermost layer of the first object, and the end of the first adhesive portion close to the second base is adhered to the overlapping layer of the first object and the outermost layer.

[0021] As an optional embodiment, applying an external force to the second base includes applying an adsorption force and / or a clamping force to the second base.

[0022] As an optional embodiment, the adsorption force includes at least one of negative pressure, magnetic attraction, and electrostatic force.

[0023] As an optional embodiment, at least a portion of the first area of ​​the second adhesive portion is made of an activated material, and the activated material can generate adhesiveness when activated, and releasing the adhesiveness of the second adhesive portion includes: The activation material of the second adhesive portion is activated by at least one of thermal excitation, optical excitation, electrical excitation, and pressure excitation, so that the activation material becomes adhesive.

[0024] As an optional embodiment, a third adhesive portion is detachably connected to at least a portion of a third area of ​​the second adhesive portion adjacent to the first adhesive portion; and releasing the adhesiveness of the second adhesive portion comprises: Applying an external force to bend the second base portion in a direction away from the first adhesive portion also drives the third area of ​​the second adhesive portion to separate from the third adhesive portion.

[0025] As an optional embodiment, at least a portion of the second area of ​​the second adhesive portion away from the first adhesive portion includes a second adhesive layer provided on at least one side of the substrate, and a first isolation layer provided on a side of the second adhesive layer away from the substrate; releasing the adhesiveness of the second adhesive portion includes: Applying external force to separate the first isolation layer from the second adhesive layer.

[0026] The technical solution provided by this application may include the following beneficial results: The composite tape of the present application has three functions: first, sealing materials, where the first adhesive portion can be attached to the overlapping area of ​​the material to achieve closure of the material end; second, unsealing materials, where an external force is applied to the second adhesive portion, causing the portion of the first adhesive portion near the second base to detach from the material, while the portion away from the second base remains attached to the material, achieving unsealing of the material end; and third, splicing, where the adhesiveness of the second adhesive portion can be released to make it sticky, and then the second adhesive portion can be attached to a new material to achieve material connection. Therefore, the composite tape of the embodiment of the present application has secondary adhesiveness and can simultaneously perform the functions of sealing, unsealing, and splicing, thereby improving material replacement efficiency and reducing production costs.

[0027] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0029] FIG1( a ) is a schematic structural diagram of an adhesive tape for splicing tapes according to an embodiment of the present application, which only includes a non-adhesive portion; FIG1( b ) is a schematic diagram of a second structure of an adhesive tape for splicing tapes according to an embodiment of the present application, which only includes a non-adhesive portion; FIG1( c ) is a schematic diagram of the third structure of the adhesive tape for splicing tapes according to an embodiment of the present application, which only includes the non-adhesive portion; FIG2( a ) is a schematic diagram of a structure of an adhesive tape for splicing tapes in an embodiment of the present application, which only includes a second adhesive portion; FIG2( b ) is a schematic diagram of a second structure of the adhesive tape for splicing tapes according to an embodiment of the present application, which only includes the second adhesive portion; FIG3( a ) is a schematic structural diagram of an adhesive tape for splicing tapes according to an embodiment of the present application, which includes both a non-adhesive portion and a second adhesive portion; FIG3( b ) is a schematic structural diagram of an adhesive tape for splicing tapes according to an embodiment of the present application, which includes both a non-adhesive portion and a second adhesive portion; FIG3( c ) is a schematic structural diagram of an adhesive tape for splicing tapes according to an embodiment of the present application, which includes both a non-adhesive portion and a third adhesive portion; FIG4( a ) is a schematic structural diagram of an adhesive tape for splicing tapes according to an embodiment of the present application, wherein the first adhesive portion is made of an activated material; FIG4( b ) is a schematic diagram of a second structure of an adhesive tape for splicing tapes according to an embodiment of the present application, wherein the first adhesive portion is made of an activated material; Figure 5 It is a schematic diagram of the structure of Figure 1 (a) with the addition of magnetic parts; Figure 6 2 (a) is a schematic diagram of the structure with the magnetic component added; Figure 7 3 (a) is a schematic diagram of the structure with the magnetic component added; Figure 8 3 (b) is a schematic diagram of the structure with the magnetic component added; Figure 9 4 (a) is a schematic diagram of the structure with the magnetic part added; FIG10( a ) is a schematic diagram of a tape sealing roll in use, shown in an embodiment of the present application, comprising only a non-adhesive portion; FIG10( b ) is a schematic diagram showing an embodiment of the present application showing an adhesive tape comprising only a non-adhesive portion and the second base portion being acted upon by an external force during use; FIG10( c ) is a schematic diagram showing an embodiment of the present application showing an adhesive tape comprising only a non-adhesive portion, wherein the first adhesive portion is separated from the outer winding layer during use; FIG10( d ) is a schematic diagram of an adhesive tape comprising only a non-adhesive portion according to an embodiment of the present application, in which the non-adhesive portion is activated and a splice is performed during use; FIG11( a ) is a schematic diagram of a tape sealing roll in use, the tape comprising only the second adhesive portion, according to an embodiment of the present application; FIG11( b ) is a schematic diagram showing an embodiment of the present application showing an adhesive tape comprising only a second adhesive portion and the second base portion being acted upon by an external force during use; FIG11( c ) is a schematic diagram showing the separation of the first adhesive portion and the second adhesive portion during use of an adhesive tape comprising only the second adhesive portion according to an embodiment of the present application; FIG11( d ) is a schematic diagram of an embodiment of the present application showing a tape comprising only the second adhesive portion being spliced ​​during use.

[0030] Reference numerals: 1. Base; 10. First base; 11. Second base; 2. First adhesive part; 20. First adhesive section; 21. Second adhesive section; 3. Second adhesive part; 30. Second adhesive layer; 31. First isolation layer; A. First area; B. Second area; C. Third area; 4. Third adhesive part; 40. First bottom layer; 41. First adhesive layer; 5. First object; 50. Outermost layer; 51. Overlay layer; D. Overlay area; 6. Magnetic member; 7. Third adhesive layer; 8. Second isolation layer. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0034] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0035] In the prior art, when replacing materials, it is generally necessary to first manually remove the sealing tape to unseal the materials; then, the new material is docked with the old material to complete the roll change. However, in this replacement method, the sealing tape loses its stickiness after removal and can no longer be used as docking tape. This requires replacing new tape when docking, significantly affecting material replacement efficiency and production costs.

[0036] In response to the above problems, an embodiment of the present application provides a composite tape that can use the same tape to achieve sealing, unsealing and docking of materials, thereby improving material replacement efficiency and reducing production costs.

[0037] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0038] Referring to Figures 1(a) to 3(c), an embodiment of the present application provides a composite tape, including a base 1, the base 1 including a first base portion 10 and a second base portion 11 connected to each other along its extension direction; the composite tape also includes a first adhesive portion 2 and a second adhesive portion 3, the first adhesive portion 2 being arranged on at least one side of the first base portion 10; the second adhesive portion 3 being arranged on at least one side of the base 1, one end of the second adhesive portion 3 located on the same side as the first adhesive portion 2 is connected to the first adhesive portion 2, and the other end extends to a preset position on the second base portion 11, and the adhesiveness of the second adhesive portion 3 needs to be released to generate.

[0039] The adhesive tape in the embodiments of this application can be used to connect old and new materials during material replacement. The base 1, serving as the tape's backbone, should be thin enough to provide support while maintaining overall flexibility while negligibly increasing the thickness of the roll. Base 1 can be made of film-like materials, such as polyester (PET), polypropylene (PP), and polyvinyl chloride (PVC), though this application does not limit this.

[0040] The present embodiment does not limit the conditions for generating the adhesiveness of the first adhesive portion 2; it can be inherently adhesive or can be released to generate adhesiveness. However, when using the tape, the first adhesive portion 2 must be adhesive. If the first adhesive portion 2 needs to be released to generate adhesiveness, it is necessary to release the first adhesive portion 2 before using the tape.

[0041] There are various ways to arrange the first adhesive portion 2 and the second adhesive portion 3. For example, the first adhesive portion 2 and the second adhesive portion 3 can be arranged on the same side of the base 1, and / or the first adhesive portion 2 and the second adhesive portion 3 can be arranged on opposite sides of the base 1. When the first adhesive portion 2 and the second adhesive portion 3 are arranged on the same side of the base 1, the first adhesive portion 2 is arranged corresponding to the first base portion 10, one end of the second adhesive portion 3 is connected to the first adhesive portion 2, and the other end extends to a preset position on the second base portion 11. When the first adhesive portion 2 and the second adhesive portion 3 are arranged on opposite sides of the base 1, the first adhesive portion 2 is arranged corresponding to the first base portion 10, and the position of the second adhesive portion 3 is not limited. The preset position can be any position on the second base portion 11, such as the middle of the second base portion 11, the end of the second base portion 11 away from the first base portion 10, etc., and this application does not limit this.

[0042] In the embodiment of the present application, the conditions for the viscosity of the second adhesive part 3 are limited, and it needs to be released to generate viscosity. In other words, the embodiment of the present application can release the viscosity of the second adhesive part 3 at the appropriate use node according to the actual use scenario. For example, when using the tape, the first adhesive part 2 is initially adhesive, and the first adhesive part 2 can be attached to the overlapping area of ​​the material to seal the material. The viscosity of the second adhesive part 3 is not released, and there is no adhesion between the material and the material; when changing the material, the tape is unsealed first, and an external force can be applied to the second adhesive part 3 to separate the part of the first adhesive part 2 close to the second base 11 from the material, while the part away from the second base 11 is still attached to the material; when docking the materials, the viscosity of the second adhesive part 3 can be released first to make the second adhesive part 3 adhesive, and then the second adhesive part 3 can be attached to the new material to achieve material docking.

[0043] As can be seen from the above, the composite tape of the embodiment of the present application has three functions: first, sealing the material. The first adhesive portion 2 can be attached to the overlapping area of ​​the material to achieve closure of the material end; second, unsealing the material. By applying external force to the second adhesive portion 3, the portion of the first adhesive portion 2 close to the second base 11 is separated from the material, while the portion away from the second base 11 remains attached to the material, achieving unsealing of the material end; third, splicing. By first releasing the viscosity of the second adhesive portion 3, making the second adhesive portion 3 sticky, and then attaching the second adhesive portion 3 to the new material, the material is connected. Therefore, the composite tape of the embodiment of the present application has secondary viscosity and can simultaneously perform the functions of sealing, unsealing, and splicing, thereby improving material replacement efficiency and reducing production costs.

[0044] In the embodiment of the present application, the second adhesive portion 3 has various forms, such as the following forms: At least a portion of the first area A of the first and second adhesive portions 3 is made of an activated material that can generate adhesiveness under activation.

[0045] Referring to Figures 1(a) to 1(c), when the second adhesive portion 3 is in the first form, when sealing the material, the first adhesive portion 2 is adhered to the overlapping area of ​​the material; when unsealing the material, the second base 11 can move in a direction away from the first adhesive portion 2 under the action of an external force to drive the end of the first adhesive portion 2 close to the second base 11 to separate from the overlapping area; when the materials are docked, the activation material of the second adhesive portion 3 is activated to release the adhesiveness of the first area A of the second adhesive portion 3, and then the first area A of the second adhesive portion 3 is adhered to the new material.

[0046] Preferably, the activation material includes at least one of heat-sensitive adhesive, light-sensitive adhesive, electric-sensitive adhesive and pressure-sensitive adhesive.

[0047] In the embodiments of the present application, the activation method includes at least one of thermal activation, light activation, electrical activation, and pressure activation. Specifically, for example, when the activation material is a thermosensitive adhesive, thermal activation can be used to stimulate the thermosensitive adhesive, thereby imparting adhesive properties. The thermosensitive adhesive, lightsensitive adhesive, electrosensitive adhesive, and pressure-sensitive adhesive materials in the embodiments of the present application can be materials known to those skilled in the art, and this application does not further limit the specific types of materials.

[0048] In the second type, the third adhesive part 4 is detachably connected to at least a portion of the third area C of the second adhesive part 3 close to the first adhesive part 2 .

[0049] Referring to Figures 2 (a) to 2 (b), when the second adhesive part 3 is in the second form, when sealing the material, the first adhesive part 2 and the third adhesive part 4 are adhered to the overlapping area of ​​the material; when unsealing the material, the second base 11 can move in the direction away from the first adhesive part 2 under the action of external force, so as to drive the end of the first adhesive part 2 close to the second base 11 to break away from the overlapping area, and the third area C of the second adhesive part 3 is separated from the third adhesive part 4, releasing the stickiness of the third area C of the second adhesive part 3; when the materials are docked, the third area C of the second adhesive part 3 is adhered to the new material.

[0050] Preferably, referring to FIG. 2( a ) to FIG. 3 ( c ), the third adhesive portion 4 includes a first bottom layer 40 provided on the second adhesive portion 3 , and a first adhesive layer 41 provided on a side of the first bottom layer 40 away from the second adhesive portion.

[0051] Since when the tape includes the third adhesive part 4, the third adhesive part 4 needs to be adhered to the material when sealing the material, so the first adhesive layer 41 is provided to adhere the material; when unsealing the material, the third area C of the second adhesive part 3 needs to be separated from the first adhesive layer 41, and both the third area C and the first adhesive layer 41 are adhesive. In order to prevent the third area C from being difficult to separate from the first adhesive layer 41, the embodiment of the present application can make it easier to separate the third area C from the first adhesive layer 41 by providing a non-adhesive first bottom layer 40 between the third area C and the first adhesive layer 41.

[0052] The first bottom layer 40 serves as the framework of the third adhesive portion 4. While providing support, it should be thin enough to ensure overall flexibility. Even if it remains on the roll, the increase in roll thickness is negligible. The first bottom layer 40 can be made of a film material, such as polyester (PET), polypropylene (PP), and polyvinyl chloride (PVC), though this application does not limit this.

[0053] In addition, when using the tape, the third adhesive part 4 and the second adhesive part 3 in the embodiment of the present application can be an integral structure or a separate structure. When the two are separate structures, the third adhesive part 4 can be pasted on the material in advance, and then the third area C of the second adhesive part 3 can be pasted on the third adhesive part 4; when the two are an integral structure, the second adhesive part 3 and the third adhesive part 4 can be directly pasted on the material as a whole.

[0054] The third type is a combination of the first and second types. At least a portion of the first region A of the second adhesive portion 3 is made of an activated material that becomes sticky when activated. Furthermore, a third adhesive portion 4 is detachably connected to at least a portion of the third region C of the second adhesive portion 3, which is adjacent to the first adhesive portion 2.

[0055] Referring to Figure 3 (a), when the second adhesive part 3 is in the third form, when sealing the material, the first adhesive part 2 and the third adhesive part 4 are pasted on the overlapping area of ​​the material; when unsealing the material, the second base 11 can move in the direction away from the first adhesive part 2 under the action of external force, so as to drive the end of the first adhesive part 2 close to the second base 11 to break away from the overlapping area, and the third area C of the second adhesive part 3 is separated from the third adhesive part 4, releasing the stickiness of the third area C of the second adhesive part 3; when the materials are docked, the activation material of the second adhesive part 3 is activated to release the stickiness of the second adhesive part 3, and then the third area C of the second adhesive part 3 and the first area A are pasted on the new material.

[0056] In the fourth embodiment, at least a portion of the second region B of the second adhesive portion 3 includes a second adhesive layer 30 disposed on at least one side of the substrate 1, and a first isolation layer 31 disposed on a side of the second adhesive layer 30 away from the substrate 1. The first isolation layer 31 can be separated from the second adhesive layer 30 under the action of an external force to release the second adhesive layer 30. A third adhesive portion 4 is detachably connected to at least a portion of the third region C of the second adhesive portion 3 near the first adhesive portion 2.

[0057] Referring to Figure 3 (b) and Figure 3 (c), when the second adhesive part 3 is in the fourth form, when sealing the material, the first adhesive part 2 and the third adhesive part 4 are pasted on the overlapping area of ​​the material; when unsealing the material, the second base 11 can move in the direction away from the first adhesive part 2 under the action of external force, so as to drive the end of the first adhesive part 2 close to the second base 11 to break away from the overlapping area, and the third area C of the second adhesive part 3 is separated from the third adhesive part 4, releasing the stickiness of the third area C of the second adhesive part 3; when the materials are docked, the first isolation layer 31 is separated from the second adhesive layer 30 under the action of external force to release the second adhesive layer 30, and then the third area C of the second adhesive part 3 and the second adhesive layer 30 are pasted on the new material.

[0058] In the embodiment of the present application, when the first area A, the second area B and the third area C exist separately, they can all be the entire area on one side of the second sticky part 3; when the first area A and the third area C exist at the same time, the first area A is set away from the first sticky part 2, and the third area C is set close to the first sticky part 2; or, the first area A is set close to the first sticky part 2, and the third area C is set away from the first sticky part 2; when the second area B and the third area C exist at the same time, the second area B is set away from the first sticky part 2, and the third area C is set close to the first sticky part 2; or, the second area B is set close to the first sticky part 2, and the third area C is set away from the first sticky part 2.

[0059] As an optional embodiment, referring to Figures 2(a) to 3(c), the first adhesive portion 2 includes a first adhesive segment 20 and a second adhesive segment 21 connected to each other along its extension direction, and the second adhesive portion 3 located on the same side of the first adhesive portion 2 is connected to the second adhesive segment 21.

[0060] In this embodiment, the first adhesive portion 2 is divided into a first adhesive section 20 and a second adhesive section 21. When sealing a material, the first adhesive section 20 is attached to the outermost layer of the material, while the second adhesive section 21 is attached to the overlapping layer between the material and the outermost layer. When unsealing the tape, the second base portion 11 can be moved away from the first adhesive portion 2 by an external force, thereby driving the second adhesive section 21 away from the overlapping layer, while the first adhesive section 20 remains attached to the outermost layer of the material.

[0061] Preferably, the first adhesive section 20 and the second adhesive section 21 have the same adhesiveness.

[0062] In the embodiment of the present application, the first adhesive section 20 and the second adhesive section 21 have the same viscosity, so that the first adhesive section 20 and the second adhesive section 21 can be integrally formed, thereby improving the production efficiency of the tape.

[0063] Preferably, the first adhesive section 20 and the second adhesive section 21 have different adhesive properties.

[0064] In the embodiment of the present application, the first adhesive section 20 and the second adhesive section 21 have different viscosities, with the first adhesive section 20 having greater viscosities than the second adhesive section 21. This ensures that when unsealing the material, the first adhesive section 20 adheres firmly to the material, while the second adhesive section 21 can be easily detached from the material under external force without leaving adhesive marks on the material.

[0065] For example, the first adhesive section 20 and the second adhesive section 21 may be made of materials with different viscosities, or the adhesive coating areas on the first adhesive section 20 and the second adhesive section 21 may be set so that the first adhesive section 20 and the second adhesive section 21 have different viscosities.

[0066] Preferably, the extension length of the first adhesive section 20 is not less than the extension length of the second adhesive section 21 .

[0067] In the embodiment of the present application, the second adhesive section 21 is pre-adhered to the material. When unsealing the material, the second adhesive section 21 needs to be easily separated from the material. Therefore, the extension length of the second adhesive section 21 can be smaller than the extension length of the first adhesive section 20, so that the second adhesive section 21 can be easily separated.

[0068] Optionally, referring to FIG. 4 (a) and FIG. 4 (b), the first adhesive portion 2 includes an adhesive material coated on at least one side of the first base 10, and the adhesive material is made of a material that becomes adhesive when activated, or is made of a material that is self-adhesive.

[0069] In the embodiment of the present application, the first sticky part 2 can be made of a material that is originally sticky, such as rubber adhesive, acrylic adhesive, silicone adhesive, hot melt adhesive, epoxy resin adhesive, etc., and the first sticky part 2 does not need to be processed when used, and the part is sticky; or it can be made of a material that needs to be activated to become sticky, such as at least one of heat-sensitive adhesive, photosensitive adhesive, electrosensitive adhesive and pressure-sensitive adhesive materials. Before use (before sealing the material), the first sticky part 2 must be activated to make it sticky before it can be used.

[0070] Optional, see Figures 5 to 9 The adhesive tape further includes a magnetic member 6 , which is disposed in the second base portion 11 so that the second base portion 11 can be bent in a direction away from the first adhesive portion 2 under the action of a magnetic force.

[0071] In the embodiment of the present application, the second base 11 can move under the constraint of an external force, wherein the external force can be an adsorption force or a clamping force. When it is an adsorption force, the second base 11 can be adsorbed by a device with a vacuum adsorption head, thereby driving the second base 11 to move; or, the magnetic member 6 in the second base 11 can be magnetically attracted by a device with a magnetic attraction structure, thereby driving the second base 11 to move. When it is a clamping force, the second base 11 can be clamped by a clamp device, thereby driving the second base 11 to move.

[0072] Optionally, referring to Figures 1(b), 1(c), 2(b), 3(c), and 4(b), the adhesive tape further includes a third adhesive layer 7 disposed on the side of the substrate 1 away from the first adhesive portion 2, and a second isolation layer 8 disposed on the side of the third adhesive layer 7 away from the substrate 1.

[0073] In the embodiment of the present application, the addition of the third adhesive layer 7 to the adhesive tape increases its applicability, for example, enabling the splicing of multiple composite rolls. Furthermore, the provision of the second isolation layer 8 prevents external forces applied to the second base 11 by external devices from adhering to the third adhesive layer 7 and causing the third adhesive layer 7 to lose its adhesive properties.

[0074] Corresponding to the aforementioned embodiment of the application function realization device, the present application also provides a method for using an adhesive tape and corresponding embodiments.

[0075] Referring to FIG. 10 (a) to FIG. 11 (d), an embodiment of the present application further provides a method for using a composite tape, comprising: S1. Stick the first adhesive portion 2 to the overlapping area D of the first object 5.

[0076] In the embodiment of the present application, the first object 5 may be a wound object, such as a diaphragm roll or a pole piece roll. An overlap region D is formed between the end of the wound object and the adjacent layers. For example, the end of the first adhesive portion 2 facing away from the second base 11 is adhered to the outermost layer 50 of the first object 5, and the end of the first adhesive portion 2 facing closer to the second base 11 is adhered to the overlap layer 51 where the first object 5 overlaps the outermost layer, thereby sealing the first object 5.

[0077] S2. Apply external force to the second base portion 11 to bend the second base portion 11 in a direction away from the first adhesive portion 2, so as to drive the end of the first adhesive portion 2 close to the second base portion 11 to separate from the overlapping area D.

[0078] In the embodiment of the present application, applying an external force to the second base 11 includes applying an adsorption force and / or a clamping force to the second base 11. The adsorption force includes at least one of negative pressure, magnetic attraction, and electrostatic force.

[0079] S3. Release the stickiness of the second sticky part 3 and stick the sticky second sticky part 3 onto the second object.

[0080] In the embodiment of the present application, the second adhesive portion 3 has various forms, such as the following forms: First, at least part of the first area A of the second adhesive portion 3 is made of an activatable material that becomes sticky when activated. The first method for releasing the stickiness is to activate the activatable material in the first area A of the second adhesive portion 3 to make the first area A of the second adhesive portion 3 sticky.

[0081] In the second method, the third adhesive portion 4 is detachably connected to at least a portion of the third region C of the second adhesive portion 3 near the first adhesive portion 2. A second method for releasing the adhesiveness is to use an external force to separate the third region C of the second adhesive portion 3 from the third adhesive portion 4, thereby releasing the adhesiveness of the third region C of the second adhesive portion 3.

[0082] The third type is a combination of the first and second types. The combination of the first and second types can be used to release the stickiness of the second adhesive part 3.

[0083] Fourthly, at least a portion of the second region B of the second adhesive portion 3 comprises a second adhesive layer 30 disposed on at least one side of the substrate 1, and a first isolation layer 31 disposed on a side of the second adhesive layer 30 away from the substrate 1. The first isolation layer 31 can be separated from the second adhesive layer 30 by an external force, thereby releasing the second adhesive layer 30. A third adhesive portion 4 is detachably connected to at least a portion of the third region C of the second adhesive portion 3, which is adjacent to the first adhesive portion 2. A third method for releasing the adhesiveness can be employed: external force can be used to separate the third region C of the second adhesive portion 3 from the third adhesive portion 4, thereby releasing the adhesiveness of the third region C of the second adhesive portion 3, and external force can be used to separate the first isolation layer 31 from the second adhesive layer 30, thereby releasing the second adhesive layer 30.

[0084] In the embodiment of the present application, the second adhesive portion 3 can be released in a corresponding manner according to different forms of the second adhesive portion 3 .

[0085] The composite tape of the embodiment of the present application has three usage states: the first is the state of sealing materials, in which the first adhesive portion 2 is attached to the overlapping area of ​​the materials to close the ends of the materials; the second is the state of unsealing materials, in which an external force is applied to the second adhesive portion 3 so that the portion of the first adhesive portion 2 near the second base 11 is separated from the materials, while the portion away from the second base 11 remains attached to the materials, thereby unsealing the ends of the materials; the third is the state of splicing, in which the viscosity of the second adhesive portion 3 can be released to make the second adhesive portion 3 sticky, and then the second adhesive portion 3 can be attached to the new material to achieve material connection. Therefore, the composite tape of the embodiment of the present application has secondary viscosity, and the same composite tape can be used to perform multiple operations of sealing, unsealing, and splicing, thereby improving material replacement efficiency and reducing production costs.

[0086] As an optional embodiment, at least a portion of the first area A of the second adhesive portion 3 is made of an activated material, and the activated material can generate viscosity when activated. Releasing the viscosity of the second adhesive portion 3 includes: The activation material of the second adhesive portion 3 is activated by at least one of thermal excitation, optical excitation, electrical excitation, and pressure excitation, so that the activation material becomes adhesive.

[0087] In the embodiments of the present application, the activation material includes at least one of a heat-sensitive adhesive, a photosensitive adhesive, an electrosensitive adhesive, and a pressure-sensitive adhesive. The activation method includes at least one of thermal excitation, light excitation, electrical excitation, and pressure excitation. Specifically, for example, when the activation material is a heat-sensitive adhesive, thermal excitation can be used to stimulate the heat-sensitive adhesive, thereby imparting adhesive properties. The heat-sensitive adhesive, photosensitive adhesive, electrosensitive adhesive, and pressure-sensitive adhesive materials in the embodiments of the present application can be materials known to those skilled in the art, and this application does not further limit the specific types of materials.

[0088] It can be seen from the above that the second adhesive portion 3 in the embodiment of the present application has various forms.

[0089] When it is the first form, the use of the composite tape includes: S11. Referring to FIG. 10 (a), the end of the first adhesive portion 2 away from the second base 11 is adhered to the outermost layer 50 of the first object 5, and the end of the first adhesive portion 2 close to the second base 11 is adhered to the overlapping layer 51 where the first object 5 and the outermost layer overlap, thereby sealing the first object 5.

[0090] S21, referring to Figures 10(b) and 10(c), apply external force to the second base 11 to bend the second base 11 away from the first adhesive portion 2, so as to drive the end of the first adhesive portion 2 close to the second base 11 to leave the overlapping area.

[0091] S31, referring to FIG10 (d), activate the activation material of the first area A of the second adhesive portion 3 on the activation platform by using at least one of thermal excitation, optical excitation, electrical excitation, and pressure excitation to make the activation material sticky; and stick the sticky first area A of the second adhesive portion 3 to the second object.

[0092] When it is the second form, the use method of the composite tape includes: S12. Referring to FIG. 11 (a), the end of the first adhesive portion 2 away from the second base 11 is adhered to the outermost layer 50 of the first object 5, and the end of the first adhesive portion 2 close to the second base 11 and the third adhesive portion 4 are adhered to the overlapping layer 51 where the first object 5 and the outermost layer overlap, thereby sealing the first object 5.

[0093] S22. Referring to Figures 11 (b) and 11 (c), an external force is applied to the second base 11 to bend the second base 11 in a direction away from the first adhesive portion 2, thereby driving the end of the first adhesive portion 2 close to the second base 11 to separate from the overlapping area D, and at the same time driving the third area C of the second adhesive portion 3 to separate from the third adhesive portion 4, thereby releasing the adhesiveness of the third area C of the second adhesive portion 3.

[0094] S32 , referring to FIG. 11 ( d ), the third region C of the second adhesive portion 3 is adhered to the second object.

[0095] When it is the third form, the use of the composite tape includes: S13. Stick the end of the first adhesive part 2 away from the second base 11 to the outermost layer 50 of the first object 5, and stick the end of the first adhesive part 2 close to the second base 11 and the third adhesive part 4 to the overlapping layer 51 where the first object 5 and the outermost layer overlap, so as to seal the first object 5.

[0096] S23. Apply external force to the second base 11 to bend the second base 11 in a direction away from the first adhesive part 2, so as to drive the end of the first adhesive part 2 close to the second base 11 to separate from the overlapping area D, and at the same time drive the third area C of the second adhesive part 3 to separate from the third adhesive part 4, so as to release the stickiness of the third area C of the second adhesive part 3.

[0097] S33. Activate the activation material of the first area A of the second adhesive part 3 by at least one of thermal excitation, optical excitation, electrical excitation, and pressure excitation, so that the activation material becomes sticky; and stick the first area A and the third area C of the second adhesive part 3 to the second object.

[0098] When it is the fourth form, the use method of the composite tape includes: S14. Stick the end of the first adhesive part 2 away from the second base 11 to the outermost layer 50 of the first object 5, and stick the end of the first adhesive part 2 close to the second base 11 and the third adhesive part 4 to the overlapping layer 51 where the first object 5 and the outermost layer overlap, so as to seal the first object 5.

[0099] S24. Apply external force to the second base 11 to bend the second base 11 in a direction away from the first adhesive part 2, so as to drive the end of the first adhesive part 2 close to the second base 11 to separate from the overlapping area D, and at the same time drive the third area C of the second adhesive part 3 to separate from the third adhesive part 4, so as to release the stickiness of the third area C of the second adhesive part 3.

[0100] S34 , applying external force to separate the first isolation layer 31 from the second adhesive layer 30 , and adhering the third area C of the second adhesive portion 3 and the second adhesive layer 30 to the second object.

[0101] Optionally, referring to FIG. 10 ( b ) and FIG. 10 ( c ), and FIG. 11 ( b ) and FIG. 11 ( c ), applying an external force to the second base 11 includes applying an adsorption force or a clamping force to the second base 11 .

[0102] In the embodiment of the present application, the second base 11 can move under the constraint of an external force, wherein the external force can be an adsorption force or a clamping force. When it is an adsorption force, the second base 11 can be adsorbed by a device with a vacuum adsorption head, thereby driving the second base 11 to move; or, the magnetic member 6 in the second base 11 can be magnetically attracted by a device with a magnetic attraction structure, thereby driving the second base 11 to move. When it is a clamping force, the second base 11 can be clamped by a clamp device, thereby driving the second base 11 to move.

[0103] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for this application. In addition, it is understood that the steps in the method of the embodiment of the present application can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0104] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A composite tape, characterized in that: include: A base (1), the base (1) comprising a first base portion (10) and a second base portion (11) connected to each other along an extension direction thereof; a first adhesive portion (2), the first adhesive portion (2) being provided on at least one side of the first base portion (10); A second adhesive portion (3) is provided on at least one side of the base (1), one end of the second adhesive portion (3) located on the same side as the first adhesive portion (2) is connected to the first adhesive portion (2), and the other end extends to a preset position on the second base (11), and the adhesiveness of the second adhesive portion (3) needs to be released.

2. The composite tape according to claim 1, characterized in that At least part of the first region (A) of the second adhesive portion (3) is made of an activated material, and the activated material can generate adhesiveness under activation.

3. The composite tape according to claim 2, characterized in that: The activation material includes at least one of heat-sensitive adhesive, light-sensitive adhesive, electric-sensitive adhesive and pressure-sensitive adhesive.

4. The composite adhesive tape according to any one of claims 1 to 3, characterized in that: The second adhesive portion (3) is detachably connected to a third adhesive portion (4) on at least a portion of the third region (C) adjacent to the first adhesive portion (2).

5. The composite tape according to claim 4, characterized in that: The third adhesive part (4) comprises a first bottom layer (40) provided on the second adhesive part (3), and a first adhesive layer (41) provided on a side of the first bottom layer (40) away from the second adhesive part.

6. The composite tape according to claim 4, characterized in that At least a portion of the second region (B) of the second adhesive portion (3) away from the first adhesive portion (2) comprises a second adhesive layer (30) provided on at least one side of the substrate (1), and a first isolation layer (31) provided on a side of the second adhesive layer (30) away from the substrate (1); the first isolation layer (31) can be separated from the second adhesive layer (30) under the action of an external force to release the second adhesive layer (30).

7. The composite tape according to claim 1, wherein: The first adhesive portion (2) comprises a first adhesive segment (20) and a second adhesive segment (21) connected to each other along its extension direction, and the second adhesive portion (3) located on the same side of the first adhesive portion (2) is connected to the second adhesive segment (21).

8. The composite tape according to claim 7, characterized in that: The viscosity of the first adhesive section (20) and the second adhesive section (21) are the same or different; and / or the extension length of the first adhesive section (20) is not less than the extension length of the second adhesive section (21).

9. The composite tape according to claim 1, wherein: The first adhesive portion (2) comprises an adhesive material coated on at least one side of the first base portion (10), wherein the adhesive material is made of a material that becomes adhesive when activated, or is made of a material that is self-adhesive.

10. The composite tape according to claim 1, wherein: The adhesive tape further comprises a magnetic member (6), wherein the magnetic member (6) is arranged in the second base portion (11), so that the second base portion (11) can be bent in a direction away from the first adhesive portion (2) under the action of a magnetic force.

11. The composite tape according to claim 1, wherein: The adhesive tape further comprises a third adhesive layer (7) provided on a side of the base (1) away from the first adhesive portion (2), and a second isolation layer (8) provided on a side of the third adhesive layer (7) away from the base (1).

12. A method for using the composite tape according to any one of claims 1 to 11, characterized in that: include: Adhere the first adhesive portion (2) to the overlapping area (D) of the first object (5); Applying an external force to the second base (11) to bend the second base (11) in a direction away from the first adhesive portion (2), thereby driving the end of the first adhesive portion (2) close to the second base (11) to separate from the overlapping area (D); The stickiness of the second sticky part (3) is released, and the sticky second sticky part (3) is adhered to the second object.

13. The method of use according to claim 12, characterized in that: The step of adhering the first adhesive portion (2) to the overlapping area (D) of the first object comprises: The end of the first adhesive portion (2) away from the second base portion (11) is adhered to the outermost layer (50) of the first object (5), and the end of the first adhesive portion (2) close to the second base portion (11) is adhered to the overlapping layer (51) of the first object (5) and the outermost layer.

14. The method of use according to claim 12, wherein: The applying of external force to the second base (11) comprises applying an adsorption force and / or a clamping force to the second base (11).

15. The method of use according to claim 14, characterized in that: The adsorption force includes at least one of negative pressure, magnetic attraction, and electrostatic force.

16. The method of use according to claim 12, characterized in that: At least part of the first area (A) of the second adhesive portion (3) is made of an activated material, and the activated material can generate viscosity under activation. The releasing of the viscosity of the second adhesive portion (3) includes: The activation material of the second adhesive part (3) is activated by at least one of thermal excitation, optical excitation, electrical excitation, and pressure excitation, so that the activation material generates viscosity.

17. The method of use according to any one of claims 12 to 16, characterized in that: The second adhesive part (3) is detachably connected to a third adhesive part (4) on at least a portion of the third region (C) near the first adhesive part (2); the releasing of the adhesiveness of the second adhesive part (3) comprises: Applying an external force causes the second base (11) to bend in a direction away from the first adhesive part (2), while also driving the third area (C) of the second adhesive part (3) to separate from the third adhesive part (4).

18. The method of use according to claim 17, characterized in that: At least a portion of the second region (B) of the second adhesive portion (3) away from the first adhesive portion (2) comprises a second adhesive layer (30) provided on at least one side of the substrate (1), and a first isolation layer (31) provided on a side of the second adhesive layer (30) away from the substrate (1); the releasing of the adhesiveness of the second adhesive portion (3) comprises: External force is applied to separate the first isolation layer (31) from the second adhesive layer (30).

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