Rectangular capacitive screen process protective film

Abstract

The utility model discloses a rectangular capacitive screen process protection film, and belongs to the technical field of process protection films. The rectangular capacitive screen process protection film comprises a composite film layer, an adhesive layer and a base material layer which are sequentially stacked from top to bottom, an elastic reinforcing rib layer is arranged in the adhesive layer, and the elastic reinforcing rib layer comprises a plurality of first reinforcing ribs arranged in parallel at intervals and a plurality of second reinforcing ribs intersected with the first reinforcing ribs and arranged in parallel at intervals. The extension direction of the first reinforcing rib is parallel to one diagonal line of the adhesive layer, and the extension direction of the second reinforcing rib is parallel to the other diagonal line of the adhesive layer. The embodiment of the utility model has the beneficial effects that the excessive deformation of the adhesive layer can be effectively prevented, so that the residual adhesive after film tearing is obviously reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of process protection film, and particularly relates to a rectangular capacitive screen process protection film. BACKGROUND

[0002] With the development of high-end electronic product module production industry such as capacitive screen, the production yield of electronic product modules such as capacitive screen continues to rise. In the electronic product module production industry such as capacitive screen, there are special requirements for process protection film. The manufacturing of capacitive touch screen is a complex and delicate process, including many production processes, mainly including film plating process, exposure and development process, etching and other chemical processes. In order to ensure the quality of touch screen products, it is necessary to protect the quality of components during production.

[0003] The UV protection film is pasted on the surface of the glass substrate as a protection means in the process, and can be easily peeled off after UV curing. The product can prevent corrosion, scratching, dirt, dust and other problems, and is commonly used in precision machining industries such as glass, ceramics and semiconductors. When the capacitive screen is delivered, a process protection film needs to be pasted to protect the screen, and the protection film needs to be removed when the capacitive screen is used. However, due to the tearing habit of the user, the user usually tears the film from one corner, which can easily cause the glue layer in the process protection film to be excessively stretched and deformed or the internal stress to be too large, thereby causing bubbles between the process protection film and the capacitive screen or residual glue on the surface of the capacitive screen after the process protection film is removed. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the application is to provide a rectangular capacitive screen process protection film which can solve at least one technical problem in the background art.

[0005] In order to solve the above technical problems, the application provides the following technical solutions:

[0006] The embodiment of the application provides a rectangular capacitive screen process protection film, which comprises a composite film layer, a glue layer and a substrate layer which are sequentially stacked from top to bottom, the glue layer is provided with an elastic reinforcing rib layer, the elastic reinforcing rib layer comprises a plurality of first reinforcing ribs which are arranged in parallel and at intervals and a plurality of second reinforcing ribs which are arranged in parallel and at intervals and intersect with the first reinforcing ribs, the extension direction of the first reinforcing rib is arranged in parallel with one diagonal line of the glue layer, the extension direction of the second reinforcing rib is arranged in parallel with the other diagonal line of the glue layer, and the interval distance between adjacent first reinforcing ribs and the interval distance between adjacent second reinforcing ribs are both less than the thickness of the glue layer.

[0007] Optionally, the composite film layer is a polyethylene terephthalate layer.

[0008] Optionally, the thickness of the composite film layer is 25-75 μm.

[0009] Optionally, the adhesive layer is a polyacrylate pressure-sensitive adhesive layer.

[0010] Optionally, the thickness of the adhesive layer is 6-25 μm.

[0011] Optionally, the thickness of the substrate layer is 25-125 μm.

[0012] Optionally, the material of the substrate layer is one of PET, PE, BOPP, TPX and PI.

[0013] Optionally, the plurality of first reinforcing ribs are arranged at equal intervals, the plurality of second reinforcing ribs are arranged at equal intervals, and the interval distance between the two adjacent first reinforcing ribs is equal to the interval distance between the two adjacent second reinforcing ribs.

[0014] The beneficial effects of the embodiments of the present application are as follows:

[0015] 1. The rectangular capacitive screen process protection film provided by the present application, by arranging the elastic reinforcing rib layer, and arranging the first reinforcing rib and the second reinforcing rib in the elastic reinforcing rib layer to be parallel to the two diagonal lines of the adhesive layer, the excessive deformation of the adhesive layer can be effectively prevented, and the residual adhesive after film tearing can be significantly reduced.

[0016] 2. The interval distance between the reinforcing ribs is less than the thickness of the adhesive layer, the deformation amount of the adhesive layer during film tearing can be effectively reduced, and the excessive deformation of the adhesive layer can be effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings, wherein:

[0018] Figure 1 is a structural schematic diagram of the rectangular capacitive screen process protection film provided by the embodiments of the present application;

[0019] Figure 2 is a configuration structure diagram of the elastic reinforcing rib layer in the adhesive layer provided by the embodiments of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application, and the embodiments can be horizontally arranged or vertically arranged, and can realize the application of horizontal exciting load and the application of vertical exciting load. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0021] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0022] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides a rectangular capacitive screen process protection film, which comprises a composite film layer 1, a glue layer 2 and a substrate layer 3 arranged in sequence from top to bottom, the composite film layer 1 is a polyethylene terephthalate layer, and the thickness is 25-75 μm.

[0023] The glue layer 2 is a polyacrylate pressure-sensitive adhesive layer, and the thickness is 6-25 μm.

[0024] The glue layer 2 is provided with an elastic reinforcing rib layer 4, the elastic reinforcing rib layer 4 comprises a plurality of first reinforcing ribs 41 arranged in parallel and at intervals and a plurality of second reinforcing ribs 42 intersecting the first reinforcing ribs 41 and arranged in parallel and at intervals, the extension direction of the first reinforcing rib 41 is arranged in parallel with one diagonal of the glue layer 2, and the extension direction of the second reinforcing rib 42 is arranged in parallel with the other diagonal of the glue layer 2. The elastic reinforcing rib layer 4 can be made of PET and the like materials which are transparent and have good toughness. In this way, the excessive deformation of the glue layer 2 can be effectively prevented, so that the residual glue after film tearing is significantly reduced.

[0025] Further, the plurality of first reinforcing ribs 41 are arranged at equal intervals, the plurality of second reinforcing ribs 42 are arranged at equal intervals, and the interval distance between the two adjacent first reinforcing ribs 41 is equal to the interval distance between the two adjacent second reinforcing ribs 42.

[0026] In a specific embodiment, the interval distance between adjacent first reinforcing ribs 41 and the interval distance between adjacent second reinforcing ribs 42 are both less than the thickness of the adhesive layer 2, so that the deformation of the adhesive layer 2 when the film is torn can be effectively reduced, and the excessive deformation of the adhesive layer 2 can be effectively prevented.

[0027] The thickness of the substrate layer 3 is 25-125 μm. The material of the substrate layer is one of PET, PE, BOPP, TPX and PI.

[0028] The rectangular capacitive screen process protection film provided by the embodiments of the present application is used by first tearing off the composite film layer 1, and then bonding the adhesive layer 2 to the capacitive screen for protection. When the capacitive screen needs to tear off the protection film, the adhesive layer 2 is peeled off from the capacitive screen. Due to the existence of the elastic reinforcing rib layer 4, the excessive deformation of the adhesive layer 2 can be effectively prevented, so that the residual adhesive after tearing off the film can be significantly reduced.

[0029] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative but not restrictive. Those skilled in the art can make many forms of changes under the inspiration of the present application without departing from the scope of the present application and the scope of protection of the claims, and all the changes shall fall within the scope of protection of the present application.

Claims

1. A rectangular electric capacity screen process protection film, characterized by, The composite film layer, the adhesive layer and the substrate layer are stacked from top to bottom, the elastic reinforcing rib layer is arranged in the adhesive layer, the elastic reinforcing rib layer comprises a plurality of first reinforcing ribs arranged in parallel and a plurality of second reinforcing ribs intersecting with the first reinforcing ribs and arranged in parallel, the extension direction of the first reinforcing ribs is parallel to one diagonal line of the adhesive layer, the extension direction of the second reinforcing ribs is parallel to the other diagonal line of the adhesive layer, the interval distance between adjacent first reinforcing ribs and the interval distance between adjacent second reinforcing ribs are both less than the thickness of the adhesive layer.

2. The rectangular capacitive screen process protection film according to claim 1, characterized in that, The composite film layer is a polyethylene terephthalate layer.

3. The rectangular capacitive screen process protection film according to claim 2, characterized in that, The thickness of the composite film layer is 25-75 microns.

4. The rectangular capacitive screen process protection film according to claim 1, wherein, The adhesive layer is a polyacrylate pressure-sensitive adhesive layer.

5. The rectangular capacitive screen process protection film according to claim 4, wherein, The thickness of the adhesive layer is 6-25 microns.

6. The rectangular capacitive screen process protection film according to claim 1, wherein, The thickness of the substrate layer is 25-125 microns.

7. The rectangular capacitive screen process protection film according to claim 6, characterized in that, The material of the substrate layer is one of PET, PE, BOPP, TPX and PI.

8. The rectangular capacitive screen process protection film according to claim 1, wherein, The plurality of first reinforcing ribs are arranged at equal intervals, the plurality of second reinforcing ribs are arranged at equal intervals, and the interval distance between the two adjacent first reinforcing ribs is equal to the interval distance between the two adjacent second reinforcing ribs.

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