Latex double-sided adhesive tape and touch screen cover plate structure with same

Abstract

The utility model discloses a latex double-faced adhesive tape and a touch screen cover plate structure with the latex double-faced adhesive tape, the latex double-faced adhesive tape comprises a first release film, a first double-faced adhesive tape layer, a latex buffer layer and a second double-faced adhesive tape layer, the first release film, the first double-faced adhesive tape layer, the latex buffer layer and the second double-faced adhesive tape layer are sequentially stacked, the first double-sided adhesive layer and the second double-sided adhesive layer are respectively arranged on two side surfaces of the latex buffer layer, and the first release film is used for isolating and protecting the first double-sided adhesive layer. Thus, through the arrangement of the latex buffer layer, the risk of middle breakage caused by external force pulling is not likely to happen due to the fact that the latex buffer layer is arranged, and therefore the attaching quality of the touch screen cover plate can be improved; therefore, the risk that the touch screen cover plate is separated from the machine shell and falls off can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of touch display screens, in particular to a latex double-sided adhesive and a touch screen cover plate structure with the latex double-sided adhesive. Background Art

[0002] In the field of touch screen manufacturing, the touch screen cover and the touch screen housing are usually assembled by foam double-sided adhesive. However, the existing foam double-sided adhesive is easily broken in the middle due to the material problem of the foam layer itself, especially in the process of tearing off the heavy release film on the top layer of the foam double-sided adhesive, the foam layer is easily broken, which affects the bonding quality of the touch screen cover. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a latex double-sided adhesive and a touch screen cover structure with the latex double-sided adhesive, thereby improving the pull resistance of the double-sided adhesive and thus improving the lamination quality of the touch screen cover.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A latex double-sided adhesive comprises: a first release film, a first double-sided adhesive layer, a latex buffer layer and a second double-sided adhesive layer, wherein the first release film, the first double-sided adhesive layer, the latex buffer layer and the second double-sided adhesive layer are stacked in sequence, and the first double-sided adhesive layer and the second double-sided adhesive layer are respectively arranged on both side surfaces of the latex buffer layer, and the first release film is used to isolate and protect the first double-sided adhesive layer.

[0006] In one embodiment, the first release film is a heavy release film.

[0007] In one embodiment, the heavy release film is a PET heavy release film.

[0008] In one embodiment, the thickness of the heavy release film is 0.18 mm.

[0009] In one embodiment, the thickness of the first double-sided adhesive layer and the second double-sided adhesive layer is 0.06 mm.

[0010] In one embodiment, the first double-sided adhesive layer and the second double-sided adhesive layer are both acrylic adhesives.

[0011] In one of the embodiments, a second release film is further included, and the second release film is attached to a side of the second double-sided adhesive layer away from the latex buffer layer.

[0012] In one embodiment, the thickness of the latex buffer layer is 0.25 to 0.5 mm.

[0013] In one embodiment, the four edges of the first release film, the first double-sided adhesive layer, the latex buffer layer and the second double-sided adhesive layer are aligned with each other.

[0014] In one embodiment, a touch screen cover structure with latex double-sided adhesive includes the above-mentioned latex double-sided adhesive.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The latex double-sided adhesive of the utility model can utilize the stronger tensile resistance of the latex material by setting a latex buffer layer, so it is not easy to be pulled by external force and cause the risk of breaking in the middle. In this way, the fitting quality of the touch screen cover can be improved, and the risk of the touch screen cover separating from the casing and falling off can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the structure of a latex double-sided adhesive in one embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a touch screen cover structure with latex double-sided adhesive in one embodiment of the utility model; DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0021] See also Figure 1 and Figure 2 As shown, a touch screen cover structure 10 with latex double-sided adhesive includes a cover body 11 and a latex double-sided adhesive 12. The cover body 11 is provided with a display area and a frame area, the frame area is provided around the display area, and the latex double-sided adhesive 12 is attached to the frame area.

[0022] Among them, a latex double-sided adhesive 12 includes: a first release film 100, a first double-sided adhesive layer 200, a latex buffer layer 300 and a second double-sided adhesive layer 400. The first release film 100, the first double-sided adhesive layer 200, the latex buffer layer 300 and the second double-sided adhesive layer 400 are stacked in sequence, and the first double-sided adhesive layer 200 and the second double-sided adhesive layer 400 are respectively arranged on both side surfaces of the latex buffer layer 300. The first release film 100 is used to isolate and protect the first double-sided adhesive layer 200.

[0023] It should be noted that the traditional foam double-sided adhesive has a weaker pulling resistance due to the material of the foam layer itself, and is easily pulled by external forces and has the risk of breaking in the middle, especially when the top layer of heavy release film is torn off. Therefore, in the present utility model, latex double-sided adhesive 12 is used to replace the foam double-sided adhesive, wherein the latex buffer layer 300 has better support and resilience than the foam layer of the foam double-sided adhesive, and thus has a better buffering effect, which can reduce the risk of the touch screen cover colliding with the housing and causing the screen to break. At the same time, the latex material has better adhesion to the first double-sided adhesive layer 200 and the second double-sided adhesive 400, which can improve the bonding stability. In addition, the latex buffer layer 300 has a stronger pulling resistance than the foam material, so it is not easy to be pulled by external forces and have the risk of breaking in the middle. In this way, the fitting quality of the touch screen cover can be improved, and the risk of the touch screen cover separating from the housing and falling can be reduced. Preferably, the four edges of the first release film 100 , the first double-sided adhesive layer 200 , the latex buffer layer 300 and the second double-sided adhesive layer 400 are aligned with each other.

[0024] Preferably, the first release film 100 is a heavy release film. Since the first release film 100 needs to be torn off at the last step of assembly, in order to avoid the first release film 100 from being scratched by foreign objects during the turnover process and causing it to fall off, the first release film 100 uses a heavy release film to enhance the isolation and protection effect of the first release film 100 on the first double-sided adhesive layer 200.

[0025] Preferably, the heavy release film is a PET (polyester) heavy release film. PET film has high tensile strength and impact strength, and is not easy to break or deform. Therefore, the heavy release film with a PET substrate has a better isolation and protection effect on the first double-sided adhesive layer 200.

[0026] Preferably, the thickness of the heavy release film is 0.18 mm.

[0027] Preferably, the thickness of the first double-sided adhesive layer 200 and the second double-sided adhesive layer 400 is 0.06 mm.

[0028] Preferably, the first double-sided adhesive layer 200 and the second double-sided adhesive layer 400 are both acrylic adhesives. Acrylic adhesives have high temperature and low temperature resistance, so they can ensure bonding strength, thereby improving the lamination quality of the touch screen cover, and further improving the reliability of the touch screen.

[0029] Furthermore, the latex double-sided adhesive 12 further includes a second release film 500, which is attached to a side of the second double-sided adhesive layer 400 away from the latex buffer layer 300. Preferably, the second release film 500 is a light release film.

[0030] Preferably, the thickness of the latex buffer layer is 0.25 to 0.5 mm.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A latex double-sided adhesive, characterized in that: include: A first release film, a first double-sided adhesive layer, a latex buffer layer and a second double-sided adhesive layer, wherein the first release film, the first double-sided adhesive layer, the latex buffer layer and the second double-sided adhesive layer are stacked in sequence, and the first double-sided adhesive layer and the second double-sided adhesive layer are respectively arranged on both sides of the latex buffer layer, and the first release film is used to isolate and protect the first double-sided adhesive layer.

2. The latex double-sided adhesive according to claim 1, characterized in that: The first release film is a heavy release film.

3. The latex double-sided adhesive according to claim 2, characterized in that: The heavy release film is a PET heavy release film.

4. The latex double-sided adhesive according to claim 3, characterized in that: The thickness of the heavy release film is 0.18 mm.

5. The latex double-sided adhesive according to claim 1, characterized in that: The thickness of the first double-sided adhesive layer and the second double-sided adhesive layer is 0.06 mm.

6. The latex double-sided adhesive according to claim 1, characterized in that: The first double-sided adhesive layer and the second double-sided adhesive layer are both acrylic adhesives.

7. The latex double-sided adhesive according to claim 1, characterized in that: It also includes a second release film, which is attached to a side of the second double-sided adhesive layer away from the latex buffer layer.

8. The latex double-sided adhesive according to claim 1, characterized in that: The thickness of the latex buffer layer is 0.25-0.5 mm.

9. The latex double-sided adhesive according to claim 1, characterized in that: The edges of the first release film, the first double-sided adhesive layer, the latex buffer layer and the second double-sided adhesive layer are aligned with each other.

10. A touch screen cover structure with latex double-sided adhesive, characterized in that: The invention comprises the latex double-sided adhesive as described in any one of claims 1 to 9.

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