Double-sided adhesive assembly with shaping structure

Abstract

The utility model discloses a double-sided adhesive component with a sizing structure, which comprises a double-sided adhesive layer, a fracture area is arranged on the double-sided adhesive layer, an upper release film is arranged on the upper surface of the double-sided adhesive layer, a sizing film is arranged on the upper surface of the upper release film, a lower release layer is arranged on the lower surface of the double-sided adhesive layer, and the sizing film is arranged on the lower surface of the double-sided adhesive layer. And the extension area of the shaping film is consistent with that of the double-sided adhesive layer. And the lower release layer is release paper or a release film. Due to the fact that the shaping film is arranged on the upper release film, it can be guaranteed that the non-closed double-sided adhesive layer does not deform by means of the stiffness of the shaping film, staff can directly take the shaping film and position and attach the double-sided adhesive layer according to the shape of the shaping film in the operation process, and in the whole process, the double-sided adhesive layer does not deform; the pasting deviation of the double-sided adhesive layer is thoroughly avoided, the pasting efficiency and the pasting quality of the double-sided adhesive layer are improved, and the quality of the touch screen is effectively improved.

Description

Technical Field

[0001] The utility model relates to a double-sided adhesive for a touch screen, more specifically, to a double-sided adhesive component with a shaped structure. Background Art

[0002] At present, many of the cover viewing areas of vehicle-mounted touch screens or display screens have double-sided adhesives to fix the structure. The double-sided adhesives have various shapes. Among them, there is a non-closed double-sided adhesive structure, that is, at least one of the four sides is not connected to the double-sided adhesive, as shown in Figures 3 and Figure 4 As shown, a notch 110 is provided on the double-sided adhesive tape 10. Double-sided adhesive tapes of this structure are usually supplied in a single piece, and are easily deformed and misaligned when taken and installed by production line workers, resulting in low yield and efficiency. Therefore, a more optimized structure is needed to improve this situation.

[0003] Chinese utility model patent document CN216445285U discloses a double-sided adhesive for full-page attachment of FPC, which includes a lower release film, a double-sided adhesive layer and an upper release film arranged in sequence from bottom to top, the double-sided adhesive layer includes a plurality of double-sided adhesive blocks arranged in sequence on the lower surface of the upper release film, each of the upper surfaces of the double-sided adhesive blocks is provided with a release paper block corresponding to its shape, and the upper release film is provided with a plurality of positioning holes. The lower surface of the upper release film has weak adhesion. The lower release film is a smooth candle or PET film. The double-sided adhesive block has at least one row. The positioning holes are located on one side above the double-sided adhesive block, and at least one positioning hole is provided at the upper release film on one side above each of the double-sided adhesive blocks. The positioning holes avoid the double-sided adhesive block. The double-sided adhesive block includes a weak adhesive layer, a substrate layer and a strong adhesive layer arranged in sequence from bottom to top. The initial adhesive force ratio of the strong adhesive layer to the weak adhesive layer is 2:1 to 50:1. The weak adhesive layer has the same adhesiveness as the strong adhesive layer, the adhesive coating of the weak adhesive layer is intermittent coating, and the adhesive coating of the strong adhesive layer is full coating. The adhesive coating shape of the weak adhesive layer is a grid shape.

[0004] Obviously, the upper release film and the lower release film in the patent are completely connected, and the double-sided adhesive blocks on the double-sided adhesive layer are intermittently arranged between the upper release film and the lower release film, and the area with the double-sided adhesive blocks can be regarded as the bonding area. However, this structure cannot solve the deformation and bias problem of the existing double-sided adhesive.

[0005] Chinese utility model patent document CN209259994U discloses a double-sided adhesive foam, which includes foam, double-sided adhesive, release film and at least one slit, wherein the double-sided adhesive includes a first adhesive layer and a second adhesive layer respectively arranged on the upper surface and the lower surface of the foam; the release film includes a first release film arranged on the upper surface of the first adhesive layer and a second release film arranged on the lower surface of the second adhesive layer; the slit penetrates the first release film, the first adhesive layer, the foam and the second adhesive layer. The side of the second release film close to the second adhesive layer is a smooth surface and is provided with a grid convex pattern. The side of the first release film close to the first adhesive layer is a smooth surface and is provided with the grid convex pattern, and the grid convex patterns on the first release film and the second release film are staggered. The spacing between the grid convex patterns is 0.5mm*0.5mm. The height of the grid convex pattern is 0.05mm. The first adhesive layer and the second adhesive layer have the same glue viscosity, and the coating shape of the second adhesive layer is a grid shape. The ratio of the area with glue to the area without glue in the first glue layer is 2:1 to 10:1. The first glue layer is a strong adhesive glue, and the second glue layer is a weak adhesive glue. The initial adhesion ratio of the strong adhesive glue to the weak adhesive glue is 2:1 to 50:1.

[0006] Obviously, the double-sided adhesive foam in the patent can be easily distinguished by whether there is a cut seam on the front and back sides, thereby identifying the front and back sides of the double-sided adhesive foam. However, this structure cannot solve the deformation and bias problem of the existing double-sided adhesive.

[0007] Chinese utility model patent document CN215757119U discloses a double-sided adhesive that saves release film materials, which includes an upper release film, an upper glue layer, a foam, a lower glue layer and a lower release film that are stacked in sequence from top to bottom, the upper glue layer, the foam and the lower glue layer are provided with an opening area, the upper release film and the lower release film are respectively provided with a "concave" shaped through hole in the opening area, and each corner of the "concave" shaped through hole is provided with a first rounded corner. The radius of the first rounded corner is 1mm. The "concave" shaped through hole is located at the edge of the opening area. The "concave"-shaped through hole includes a first square hole on the left, a second square hole on the right, and a third hole at the bottom. The left side of the first square hole is aligned with the left side of the third hole, and the right side of the second square hole is aligned with the right side of the second square hole. The first square hole, the second square hole and the third hole are connected. The width and height of the first square hole and the second square hole are 3mm and 20mm respectively, and the width and height of the third hole are 21mm and 5mm respectively. The length of the foam is 187mm, the width of the foam is 113mm, and each corner of the foam is provided with a second rounded corner, and the radius of the second rounded corner is 1mm; the foam includes an upper foam, a lower foam, a left foam and a right foam respectively located on the upper, lower, left and right sides of the opening area. The width of the upper foam and the lower foam is 4mm, the width of the left foam is 7.52mm, and the width of the right foam is 3.52mm. The upper glue layer is a weakly viscous glue, and the lower glue layer is a strongly viscous glue. The initial adhesion ratio of the strong adhesive and the weak adhesive is 2:1 to 50:1. A PET substrate layer is also provided on the lower surface of the foam, and the strong adhesive is provided on the lower surface of the PET substrate layer. The waste of the "concave" shaped through hole remains on the upper release film and the lower release film. A bonding area is provided on the waste of the "concave" shaped through hole.

[0008] Obviously, in this patent, since the film tearing handle is arranged inside the opening area, the material of the outer film tearing handle can be omitted, which can greatly reduce the material cost. However, this structure cannot solve the deformation and biasing problem of the existing double-sided adhesive. Utility Model Content

[0009] Based on this, it is necessary to provide a double-sided adhesive component with a shaping structure for the above technical problems. The double-sided adhesive component with a shaping structure includes a double-sided adhesive layer, a fracture zone is provided on the double-sided adhesive layer, an upper release film is provided on the upper surface of the double-sided adhesive layer, a shaping film is provided on the upper surface of the upper release film, a lower release layer is provided on the lower surface of the double-sided adhesive layer, and the extension area of ​​the shaping film is consistent with the double-sided adhesive layer. The lower release layer is a release paper or a release film. Since the shaping film is provided on the upper release film, the stiffness of the shaping film can ensure that the non-enclosed double-sided adhesive layer will not be deformed. When the employee operates, the shaping film can be directly taken and the double-sided adhesive layer can be positioned and attached according to the shape of the shaping film. During the whole process, the double-sided adhesive layer will not be deformed, and the application deviation of the double-sided adhesive layer can be completely avoided, thereby improving the application efficiency and quality of the double-sided adhesive layer, and effectively improving the quality of the touch screen.

[0010] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0011] A double-sided adhesive component with a shaping structure, characterized in that the double-sided adhesive component with a shaping structure comprises a double-sided adhesive layer, the double-sided adhesive layer is provided with a breaking zone, an upper release film is provided on the upper surface of the double-sided adhesive layer, a shaping film is provided on the upper surface of the upper release film, a lower release layer is provided on the lower surface of the double-sided adhesive layer, and the extension area of ​​the shaping film is consistent with that of the double-sided adhesive layer.

[0012] As a preferred embodiment of the double-sided adhesive assembly with a shaping structure provided by the utility model, the lower release layer is a release paper or a release film.

[0013] As a preferred embodiment of the double-sided adhesive assembly with a shaping structure provided by the utility model, the upper release film is a single-grain release film.

[0014] As a preferred embodiment of the double-sided adhesive assembly with a shaping structure provided by the utility model, an upper tear handle is provided at the edge of the upper release film.

[0015] As a preferred embodiment of the double-sided adhesive assembly with a shaping structure provided by the utility model, a shaping tearing handle is provided at the edge of the shaping film.

[0016] As a preferred embodiment of the double-sided adhesive assembly with a shaping structure provided by the utility model, the shaping tearing handle and the upper tearing handle are arranged in parallel.

[0017] As a preferred implementation of the double-sided adhesive component with a shaping structure provided by the utility model, the shaping film is a PET film.

[0018] As a preferred implementation of the double-sided adhesive assembly with a shaping structure provided by the utility model, the thickness of the shaping film is between 0.1 mm and 0.25 mm.

[0019] As a preferred implementation of the double-sided adhesive assembly with a shaping structure provided by the utility model, the thickness of the shaping film is 0.2 mm.

[0020] As a preferred implementation of the double-sided adhesive assembly with a shaping structure provided by the utility model, the hardness of the shaping film is greater than that of the upper release film.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model provides a double-sided adhesive component with a shaping structure. Since the shaping film is arranged on the upper release film, the stiffness of the shaping film can ensure that the non-closed double-sided adhesive layer will not be deformed. When the employee operates, the shaping film can be directly taken and the double-sided adhesive layer can be positioned and attached according to the shape of the shaping film. During the whole process, the double-sided adhesive layer will not be deformed, and the sticking deviation of the double-sided adhesive layer can be completely avoided, thereby improving the sticking efficiency and sticking quality of the double-sided adhesive layer, and effectively improving the quality of the touch screen.

[0023] In addition, an upper tear handle can be provided on the edge of the upper release film. A shaping tear handle can be provided on the edge of the shaping film. The shaping tear handle and the upper tear handle are arranged in parallel. The shaping film can be quickly torn off by using the shaping tear handle. The upper release film can be quickly torn off by using the upper tear handle. Since the shaping tear handle and the upper tear handle are arranged in parallel, the worker can quickly identify them and can operate them with one hand, which is convenient and quick.

[0024] In addition, the shaping film can be a PET film. The thickness of the shaping film is between 0.1 mm and 0.25 mm. Preferably, the thickness of the shaping film is 0.2 mm. The hardness of the shaping film is greater than that of the upper release film. Since the hardness of the shaping film is greater than that of the upper release film, the upper release film and the double-sided adhesive layer can be effectively supported to prevent the upper release film and the double-sided adhesive layer from being deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] FIG1 is a schematic diagram of the hierarchical structure of a double-sided adhesive assembly with a shaped structure of the present invention;

[0027] FIG2 is a schematic structural diagram of the double-sided adhesive assembly with a shaped structure in FIG1 , from another viewing angle;

[0028] FIG3 is a schematic diagram of the hierarchical structure of a double-sided adhesive assembly in the prior art;

[0029] Figure 4 3 is a schematic diagram of the structure of the double-sided adhesive assembly, this time from another perspective;

[0030] The markings in the figure are as follows: 1. double-sided adhesive layer; 11. breaking area; 2. upper release film; 21. upper tear handle; 3. shaping film; 31. shaping tear handle; 4. lower release layer. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background technology, in the prior art, for vehicle-mounted touch screens, many of the current vehicle-mounted touch screens or display screens have double-sided adhesives on their cover viewing areas to fix the structure. The double-sided adhesives have various shapes, among which one is a non-closed double-sided adhesive structure, that is, at least one of the four sides of the double-sided adhesive is not connected, as shown in Figures 3 and Figure 4 As shown, a notch 110 is provided on the double-sided adhesive tape 10. Double-sided adhesive tapes of this structure are usually supplied in a single piece, and are easily deformed and misaligned when taken and installed by production line workers, resulting in low yield and efficiency.

[0033] In order to solve this technical problem, the utility model provides a double-sided adhesive component with a shaping structure, comprising a double-sided adhesive layer 1, a fracture zone 11 is provided on the double-sided adhesive layer 1, an upper release film 2 is provided on the upper surface of the double-sided adhesive layer 1, a shaping film 3 is provided on the upper surface of the upper release film 2, and a lower release layer 4 is provided on the lower surface of the double-sided adhesive layer 1. The lower release layer 4 is a release paper or a release film. The upper release film 2 is a single-grain release film. In addition, the extension area of ​​the shaping film 3 is consistent with that of the double-sided adhesive layer 1.

[0034] Through the above-mentioned structural design, since the upper release film 2 is provided with a shaping film 3, relying on the stiffness of the shaping film 3, it can be ensured that the non-closed double-sided adhesive layer 1 will not be deformed. When the employee operates, he can directly take the shaping film 2 and use the shape of the shaping film 2 to position and attach the double-sided adhesive layer 1. During the whole process, the double-sided adhesive layer 1 will not be deformed, and the application deviation of the double-sided adhesive layer 1 is completely avoided, thereby improving the application efficiency and quality of the double-sided adhesive layer 1, and effectively improving the quality of the touch screen.

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Example 1

[0039] As shown in Figures 1 and 2, the double-sided adhesive component with a shaping structure includes a double-sided adhesive layer 1, a breaking area 11 is provided on the double-sided adhesive layer 1, an upper release film 2 is provided on the upper surface of the double-sided adhesive layer 1, a shaping film 3 is provided on the upper surface of the upper release film 2, and a lower release layer 4 is provided on the lower surface of the double-sided adhesive layer 1.

[0040] It should be noted that the lower release layer 4 is a release paper or a release film. The upper release film 2 is a single-grain release film.

[0041] In addition, the extended area of ​​the shaping film 3 is consistent with that of the double-sided adhesive layer 1 .

[0042] The working mode of this embodiment is described below.

[0043] Since the upper release film 2 is provided with a shaping film 3, relying on the stiffness of the shaping film 3, it can be ensured that the non-closed double-sided adhesive layer 1 will not be deformed. When the employee operates, he can directly take the shaping film 2 and use the shape of the shaping film 2 to position and attach the double-sided adhesive layer 1. During the whole process, the double-sided adhesive layer 1 will not be deformed, and the application deviation of the double-sided adhesive layer 1 is completely avoided, thereby improving the application efficiency and quality of the double-sided adhesive layer 1, and effectively improving the quality of the touch screen.

[0044] Example 2

[0045] The double-sided adhesive assembly with a shaping structure provided in Example 1 is further optimized. Specifically, an upper tear handle 21 is provided at the edge of the upper release film 2. A shaping tear handle 31 is provided at the edge of the shaping film 3.

[0046] It should be noted that the shaping tearing handle 31 and the upper tearing handle 21 are arranged in parallel.

[0047] The working mode of this embodiment is described below.

[0048] The shaping film 3 can be quickly torn off by using the shaping tearing handle 31. The upper release film 2 can be quickly torn off by using the upper tearing handle 21. Since the shaping tearing handle 31 and the upper tearing handle 21 are arranged side by side, workers can quickly identify them and can operate them with one hand, which is convenient and fast.

[0049] Example 3

[0050] The double-sided adhesive assembly with a shaping structure provided in Example 1 or 2 is further optimized. Specifically, the shaping film 3 is a PET film.

[0051] It should be noted that the thickness of the shaping film 3 is between 0.1 mm and 0.25 mm. Preferably, the thickness of the shaping film 3 is 0.2 mm.

[0052] The hardness of the shaping film 3 is greater than that of the upper release film 2 .

[0053] The working mode of this embodiment is described below.

[0054] Since the hardness of the shaping film 3 is greater than that of the upper release film 2 , the upper release film 2 and the double-sided adhesive layer 1 can be effectively supported to prevent the upper release film 2 and the double-sided adhesive layer 1 from being deformed.

[0055] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A double-sided adhesive component with a shaped structure, It is characterized in that The double-sided adhesive component with a shaping structure comprises a double-sided adhesive layer (1), the double-sided adhesive layer (1) is provided with a breaking area (11), an upper release film (2) is provided on the upper surface of the double-sided adhesive layer (1), a shaping film (3) is provided on the upper surface of the upper release film (2), a lower release layer (4) is provided on the lower surface of the double-sided adhesive layer (1), and the extension area of ​​the shaping film (3) is consistent with that of the double-sided adhesive layer (1).

2. The double-sided adhesive assembly with a shaped structure according to claim 1, It is characterized in that The lower release layer (4) is a release paper or a release film.

3. The double-sided adhesive assembly with a shaped structure according to claim 1, It is characterized in that The upper release film (2) is a single-grain release film.

4. The double-sided adhesive assembly with a shaped structure according to claim 1, It is characterized in that An upper tear handle (21) is provided on the edge of the upper release film (2).

5. The double-sided adhesive assembly with a shaped structure according to claim 4, It is characterized in that The edge of the shaping film (3) is provided with a shaping tearing handle (31).

6. The double-sided adhesive assembly with a shaped structure according to claim 5, It is characterized in that The shaped tearing handle (31) and the upper tearing handle (21) are arranged in parallel.

7. The double-sided adhesive assembly with a shaped structure according to claim 1, It is characterized in that The shaping film (3) is a PET film.

8. The double-sided adhesive assembly with a shaped structure according to claim 7, It is characterized in that The thickness of the shaping film (3) is between 0.1 mm and 0.25 mm.

9. The double-sided adhesive assembly with a shaped structure according to claim 8, It is characterized in that The thickness of the shaping film (3) is 0.2 mm.

10. The double-sided adhesive assembly with a shaped structure according to claim 9, It is characterized in that The hardness of the shaping film (3) is greater than that of the upper release film (2).

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