High-efficiency touch key fixing adhesive tape

Abstract

The utility model relates to a high-efficiency touch key fixing adhesive tape which comprises a high-temperature-resistant base material layer, a first corona layer arranged on one side of the high-temperature-resistant base material layer, a second corona layer arranged on the other side of the high-temperature-resistant base material layer, a first high-temperature-resistant high-viscosity acrylic acid glue layer coated on the first corona layer, and a second high-temperature-resistant high-viscosity acrylic acid glue layer coated on the second corona layer. The first corona layer is coated with a first high-temperature-resistant high-viscosity acrylic acid glue layer, the second corona layer is coated with a second high-temperature-resistant high-viscosity acrylic acid glue layer, a first release layer is attached to the first high-temperature-resistant high-viscosity acrylic acid glue layer, and a second release layer is attached to the second high-temperature-resistant high-viscosity acrylic acid glue layer. The high-efficiency touch key fixing adhesive tape has good adhesion and high temperature resistance, and solves the problems of easy loosening, poor temperature resistance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic industry technical field especially relates to a kind of high-efficiency touch key fixing adhesive tape. BACKGROUND

[0002] In prior art, the temperature resistance of the key fixing adhesive tape of notebook computer is-10 degrees to 85 degrees, and the pulling force between black plastic key and PCBA board is about 1.5kg, which has problems such as poor adhesion and temperature resistance, and cannot be widely applied in various scenes such as electronic products or door lock keys. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems to provide a kind of high-efficiency touch key fixing adhesive tape, the fixing adhesive tape has good adhesion and high temperature resistance, solves the problems such as easy to release and poor temperature resistance.

[0004] The utility model solves the technical problems by the technical scheme that a kind of high-efficiency touch key fixing adhesive tape, including high temperature resistant substrate layer, first corona layer is arranged on one side of high temperature resistant substrate layer, second corona layer is arranged on the other side of high temperature resistant substrate layer, first high temperature resistant high-adhesion acrylic glue layer is coated on first corona layer, second high temperature resistant high-adhesion acrylic glue layer is coated on second corona layer, first release layer is attached on first high temperature resistant high-adhesion acrylic glue layer, second release layer is attached on second high temperature resistant high-adhesion acrylic glue layer.

[0005] In one embodiment, the high temperature resistant substrate layer of the high-efficiency touch key fixing adhesive tape is a high temperature resistant PET substrate layer or a PI substrate layer.

[0006] In one embodiment, the thickness of the high temperature resistant substrate layer of the high-efficiency touch key fixing adhesive tape is 0.012mm±0.003mm.

[0007] In one embodiment, the thickness of the first release layer and the second release layer of the high-efficiency touch key fixing adhesive tape is 0.05-0.075mm.

[0008] In one embodiment, the thickness of the fixing adhesive tape of the high-efficiency touch key fixing adhesive tape is 0.2mm-0.25mm.

[0009] In one embodiment, the baking temperature of the first high temperature resistant high-adhesion acrylic glue layer and the second high temperature resistant high-adhesion acrylic glue layer of the high-efficiency touch key fixing adhesive tape is 70 degrees-80 degrees.

[0010] The utility model has the advantages of:

[0011] The application provides a high-performance touch key fixing adhesive tape, which is formed by sequentially arranging a first release layer, a first high-temperature-resistant and high-adhesion acrylic glue layer, a first corona layer, a high-temperature-resistant base material layer, a second corona layer, a second high-temperature-resistant and high-adhesion acrylic glue layer and a second release layer to form a high-adhesion high-temperature-resistant double-sided adhesive tape. The high-performance touch key fixing adhesive tape has good adhesion and high-temperature resistance, and solves the problems of easy loosening and poor temperature resistance.

[0012] The high-performance touch key fixing adhesive tape adopts a high-temperature-resistant PET base material layer with good transparency and flexibility, has good temperature resistance, and has high cost performance.

[0013] The high-performance touch key fixing adhesive tape adopts a PI base material layer, and has better temperature resistance. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic view of a high-performance touch key fixing adhesive tape according to an embodiment of the application;

[0015] Figure 2 FIG. 2 is an application diagram of the high-performance touch key fixing adhesive tape according to the embodiment of the application;

[0016] Wherein:

[0017] 1, high-temperature-resistant base material layer; 2, first corona layer; 3, second corona layer; 4, first high-temperature-resistant and high-adhesion acrylic glue layer; 5, second high-temperature-resistant and high-adhesion acrylic glue layer; 6, first release layer; 7, second release layer; 8, PCBA board; 9, metal part; 10, black plastic key. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation ways of the utility model will be described in detail below with reference to the drawings.

[0019] As shown in Figure 1 and Figure 2 The embodiment of the application provides a high-performance touch key fixing adhesive tape, which comprises a high-temperature-resistant base material layer 1, a first corona layer 2 arranged on one side of the high-temperature-resistant base material layer 1, a second corona layer 3 arranged on the other side of the high-temperature-resistant base material layer 1, a first high-temperature-resistant and high-adhesion acrylic glue layer 4 coated on the first corona layer 2, a second high-temperature-resistant and high-adhesion acrylic glue layer 5 coated on the second corona layer 3, a first release layer 6 attached to the first high-temperature-resistant and high-adhesion acrylic glue layer 4, and a second release layer 7 attached to the second high-temperature-resistant and high-adhesion acrylic glue layer 5.

[0020] Specifically, the high-temperature-resistant substrate layer 1 can adopt a 0.012 mm transparent flexible high-temperature-resistant PET substrate. The two surfaces of the high-temperature-resistant PET substrate are subjected to corona treatment to form a first corona layer 2 and a second corona layer 3. A high-temperature-resistant high-adhesion acrylic glue is coated on the first corona layer 2, and the baking temperature is 80 degrees to form a first high-temperature-resistant high-adhesion acrylic glue layer 4. A high-temperature-resistant high-adhesion acrylic glue is coated on the second corona layer 3, and the baking temperature is 80 degrees to form a second high-temperature-resistant high-adhesion acrylic glue layer 5. A 0.05 mm first release layer 6 is attached to the first high-temperature-resistant high-adhesion acrylic glue layer 4, and a 0.05 mm second release layer 7 is attached to the second high-temperature-resistant high-adhesion acrylic glue layer 5 to form a fixed adhesive tape with a total thickness of 0.2 mm. After the first release layer 6 and the second release layer 7 are removed, the thickness of the product is 0.1 mm. The fixed adhesive tape has the advantages of high adhesion, high temperature resistance, good insulation, and good cushioning and fixing effect.

[0021] The first release layer 6 attached to the PCBA board 8 and the metal part 9 is first removed, and then the second release layer 7 is removed. The black plastic key 10 is pressed onto the fixed adhesive tape with a pressure of 0.4 MPa and is kept for 3 seconds. After 24 hours of static placement, it is put into a test box. After 100 degrees / 95 humidity / 1000 hours and negative 40 degrees / 1000 hours, the pulling force between the PCBA board and the black plastic key is 8-10 kg, which is 5-6 times higher than that of ordinary key fixed adhesive tape, realizing high-strength bonding.

[0022] In the above structure, the first corona layer 2 and the second corona layer 3 increase the adhesion of the first high-temperature-resistant high-adhesion acrylic glue layer 4 and the second high-temperature-resistant high-adhesion acrylic glue layer 5, which can prevent the separation of the high-temperature-resistant PET substrate and the first high-temperature-resistant high-adhesion acrylic glue layer 4 and the second high-temperature-resistant high-adhesion acrylic glue layer 5. The high-efficiency touch key fixed adhesive tape not only has high adhesion and high temperature resistance, but also has good insulation and fixing effect, solves the problems of easy detachment and temperature difference resistance, and can be widely applied in various scenes such as electronic product keys and door lock keys.

[0023] As shown in Figure 1 In one embodiment, the high-temperature-resistant substrate layer 1 of the high-efficiency touch key fixed adhesive tape is a high-temperature-resistant PET substrate layer or a PI substrate layer. The transparent flexible high-temperature-resistant PET substrate has good temperature resistance and high cost performance. The PI substrate has better temperature resistance.

[0024] As shown in Figure 1 In one embodiment, the thickness of the high-temperature-resistant substrate layer 1 of the high-efficiency touch key fixed adhesive tape is 0.012 mm±0.003 mm. The preferred thickness of the high-temperature-resistant substrate layer 1 is 0.012 mm. The high-temperature-resistant substrate layer 1 with this thickness has good high-temperature resistance.

[0025] As Figure 1 shown, in one embodiment, the thickness of the first release layer 6 and the second release layer 7 of the high-performance touch key fixing tape is 0.05-0.075mm. The thickness of the first release layer 6 and the second release layer 7 can be 0.05mm, 0.06mm, 0.065mm, 0.07mm and 0.075mm, preferably 0.05mm. The release force of the first release layer 6 and the second release layer 7 is below 10g. The first release layer 6 and the second release layer 7 are provided to facilitate the tearing of the first high-temperature-resistant and high-adhesion acrylic glue layer 4 and the second high-temperature-resistant and high-adhesion acrylic glue layer 5.

[0026] As Figure 1 shown, in one embodiment, the thickness of the high-performance touch key fixing tape is 0.2mm-0.25mm. After the first release layer 6 and the second release layer 7 are removed, the thickness of the product is 0.1mm-0.15mm. Preferably, 0.1mm. The fixing tape with the thickness has the advantages of high adhesion, high-temperature resistance, good insulation effect, and good cushioning and fixing effect.

[0027] As Figure 1 shown, in one embodiment, the baking temperature of the first high-temperature-resistant and high-adhesion acrylic glue layer 4 and the second high-temperature-resistant and high-adhesion acrylic glue layer 5 of the high-performance touch key fixing tape is 70-80 degrees. The baking temperature can be 70 degrees, 72 degrees, 75 degrees, 78 degrees and 80 degrees. Preferably, 80 degrees. The baking temperature improves the forming speed of the first high-temperature-resistant and high-adhesion acrylic glue layer 4 and the second high-temperature-resistant and high-adhesion acrylic glue layer 5.

[0028] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A high performance touch key fixing tape, characterized by, The application relates to a high-temperature-resistant substrate layer (1), a first corona layer (2) arranged on one side of the high-temperature-resistant substrate layer (1), a second corona layer (3) arranged on the other side of the high-temperature-resistant substrate layer (1), a first high-temperature-resistant high-adhesion acrylic glue layer (4) coated on the first corona layer (2), a second high-temperature-resistant high-adhesion acrylic glue layer (5) coated on the second corona layer (3), a first release layer (6) attached to the first high-temperature-resistant high-adhesion acrylic glue layer (4), and a second release layer (7) attached to the second high-temperature-resistant high-adhesion acrylic glue layer (5).

2. The high performance touch key fixing tape according to claim 1, wherein, The high-temperature-resistant substrate layer (1) is a high-temperature-resistant PET substrate layer or a PI substrate layer.

3. The high performance touch key fixing tape according to claim 1, wherein, The thickness of the high-temperature-resistant substrate layer (1) is 0.012mm+ / -0.003mm.

4. The high performance touch key fixing tape according to claim 1, wherein, The thickness of the first release layer (6) and the second release layer (7) is 0.05-0.075mm.

5. The high performance touch key fixing tape according to claim 1, wherein, The thickness of the fixed adhesive tape is 0.2mm-0.25mm.

6. The high performance touch key fixing tape according to claim 1, wherein, The baking temperature of the first high-temperature-resistant high-adhesion acrylic glue layer (4) and the second high-temperature-resistant high-adhesion acrylic glue layer (5) is 70-80 degrees.

Images