Glue residue-free protective film

Abstract

The utility model discloses a glue residue-free protective film, which comprises a protective film body, a protective film glue layer and a release film, the protective film glue layer is arranged between the protective film body and the release film, the protective film body comprises a rectangular working area, the working area is a non-sticky surface, the protective film glue layer is in a frame shape, and the protective film glue layer is arranged on the release film. And the protective film adhesive layer is arranged on the periphery of the working area. Due to the fact that no glue exists in the visual area range of the protective film body, only one circle of protective film glue layer is left, the problem of difficult tearing is avoided, meanwhile, the protective film glue layer on the periphery forms a sealing structure, foreign matter cannot enter a product, and the cleanliness of the product cannot be affected. The visual area range of the protective film body is a non-glue area, so that the influence on the surface energy of a product is limited, and the problem that the adhesive force of glue becomes low after post attachment is avoided. The adhesive-residue-free protective film not only can protect peripheral dirt from polluting a product, but also cannot cause pollution caused by transfer of an adhesive layer.

Description

Technical Field

[0001] The utility model relates to a protective film, more specifically, to a protective film free of adhesive residue. Background Art

[0002] Usually, when display modules, TP and cover plates are shipped, a protective film is attached to the front and back to protect the quality of the product during transportation, to protect the cleanliness of the product and to protect the surface of the product from scratches or pressure damage. However, during the storage process, the protective film will age and transfer to the surface of the product, causing a series of problems such as the protective film being difficult to tear, the adhesive layer remaining and the product surface energy becoming low.

[0003] Chinese utility model patent document CN220012529U discloses an integrated structure of a back protective film and a light homogenizing film, including a protective film assembly, the protective film assembly including a back protective part and a light homogenizing part arranged on the back protective part; the back protective part includes an ink protective part and a built-in protective part detachably arranged in the ink protective part, and the light homogenizing part is arranged on the ink protective part. The back protective part includes an ink area protective film, one side of the ink area protective film is pasted with a first adhesive layer, and one side of the ink area protective film is connected to an external tearing handle. The built-in protective part includes a built-in protective film, the built-in protective film is arranged in the middle of the ink area protective film and the first adhesive layer, and the built-in protective film can protect the recognition area of ​​the display screen before the display screen is attached. A dotted line is arranged between the ink area protective film and the outer side of the built-in protective film, and the dotted line is formed by punching. A built-in tearing handle is arranged on one side of the built-in protective film, and a gap for avoiding air is opened between the outer side of the built-in tearing handle and the ink area protective film. The setting of the gap to avoid the air makes it convenient for the operator to pinch the built-in tear-off handle, and the setting of the built-in tear-off handle makes it convenient to tear off the built-in protective film from the ink area protective film. Through the above-mentioned structural design, the ink area protective film and the built-in protective film can be separated, and both the ink area protective film and the built-in protective film have the characteristics of easy tearing, which is convenient for use. The uniform light part includes a uniform light film body, and the uniform light film body is pasted on the side of the first adhesive layer away from the ink area protective film, and the uniform light film body is located on one side of the built-in protective film. The uniform light part also includes a second adhesive layer, and the second adhesive layer is pasted on the side of the uniform light film body away from the first adhesive layer. The patent also discloses a back protective film and a uniform light film integrated structure, having a plurality of protective film assemblies, and also including a release film, the release film is arranged in a roll shape, and a plurality of the protective film assemblies are arranged on the release film. The release film can be rolled up and unfolded, and the release film has an inner roll surface and an outer roll surface, and the protective film assembly is arranged on the inner roll surface of the release film. The first adhesive layer and the second adhesive layer in the protective film assembly are both adhered to the inner roll surface of the release film. The first adhesive layer and the second adhesive layer in the protective film assembly are both adhered to the inner roll surface of the release film. The release film can carry and protect the protective film assembly.

[0004] Obviously, the patent sets up a protective film assembly, and the protective film assembly includes a back protection part and a light-homogenizing part arranged on the back protection part, that is, the back protection part and the light-homogenizing part are arranged together, so there is no need to laminarize twice during laminating, which saves one laminating position, optimizes the laminating process, and improves the laminating efficiency and yield. The back protection part is set, and the back protection part includes an ink protection part and a built-in protection part that can be detachably arranged in the ink protection part, so that the built-in protection part can be torn off after the laminating is completed, and the ink protection part can be retained in the ink area of ​​the display module, so as to ensure that the ink area will not be scratched or contaminated by foreign matter in the subsequent process. The release film is set up, and the release film can carry several protective film assemblies, and the release film is set in a roll shape, which can realize roll-packing, so that the production machine can realize automatic film production, which is convenient for use. However, this structure cannot solve the problem of existing adhesive layer residue. Utility Model Content

[0005] Based on this, it is necessary to provide a protective film without glue residue in order to solve the above technical problems. The protective film without glue residue comprises a protective film body, a protective film adhesive layer and a release film. The protective film adhesive layer is located between the protective film body and the release film. The protective film body comprises a rectangular working area. The working area is a non-sticky surface. The protective film adhesive layer is frame-shaped. The protective film adhesive layer is arranged on the periphery of the working area. Since there is no glue in the viewing area of ​​the protective film body, only the protective film adhesive layer of the outer circle is left. There will be no problem of being difficult to tear. At the same time, the protective film adhesive layer of the outer circle forms a sealing structure, foreign matter will not enter the product, and the cleanliness of the product will not be affected. Since the viewing area of ​​the protective film body is a glue-free area, the impact on the product surface is limited, and the problem of low glue adhesion after subsequent post-bonding will not be caused. The protective film without glue residue can protect the dirt on the periphery from contaminating the product, and will not cause pollution caused by the transfer of the adhesive layer, achieving multiple goals at one stroke.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A protective film free of glue residue, characterized in that the protective film free of glue residue comprises a protective film body, a protective film adhesive layer and a release film, the protective film adhesive layer is located between the protective film body and the release film, the protective film body comprises a rectangular working area, the working area is a non-sticky surface, the protective film adhesive layer is frame-shaped, and the protective film adhesive layer is arranged on the periphery of the working area.

[0008] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, a tear handle is provided on one side of the working area.

[0009] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, the width of the adhesive layer of the protective film is 5 mm to 10 mm.

[0010] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, the width of the adhesive layer of the protective film is 6 mm.

[0011] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, the thickness of the adhesive layer of the protective film is 0.1 mm to 0.3 mm.

[0012] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, the thickness of the adhesive layer of the protective film is 0.2 mm.

[0013] As a preferred embodiment of the protective film without adhesive residue provided by the utility model, a plurality of rectangular anti-collapse convex blocks are provided on the working area.

[0014] As a preferred implementation of the adhesive-residue-free protective film provided by the utility model, the height of the anti-collapse protrusion is consistent with the thickness of the adhesive layer of the protective film.

[0015] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, a plurality of anti-collapse convex points are arranged on the working area.

[0016] As a preferred implementation of the adhesive residue-free protective film provided by the utility model, the height of the anti-collapse protrusions is consistent with the thickness of the adhesive layer of the protective film.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a protective film without glue residue. Since there is no glue in the viewing area of ​​the protective film body, only the protective film glue layer on the outer circle remains, so there will be no problem of being difficult to tear. At the same time, the protective film glue layer on the outer circle forms a sealing structure, foreign matter will not enter the product, and the cleanliness of the product will not be affected. Since the viewing area of ​​the protective film body is a glue-free area, the impact on the product surface is limited, and the problem of low glue adhesion after subsequent lamination will not be caused. The protective film without glue residue can protect the dirt on the periphery from contaminating the product, and will not cause pollution caused by the transfer of the glue layer, achieving multiple goals at one stroke.

[0019] In addition, the working area may be provided with a plurality of rectangular anti-collapse bumps, the height of which is consistent with the thickness of the protective film adhesive layer. Since the height of the anti-collapse bumps is consistent with the thickness of the protective film adhesive layer, after lamination, the center of the protective film body can be effectively prevented from collapsing, which would affect the subsequent tearing operation.

[0020] In addition, a plurality of anti-collapse convex points may be provided on the working area. The height of the anti-collapse convex points is consistent with the thickness of the protective film adhesive layer. Since the height of the anti-collapse convex points is consistent with the thickness of the protective film adhesive layer, after lamination, the center of the protective film body can be effectively prevented from collapsing, which would affect the subsequent tearing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the protective film without adhesive residue of the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure decomposition of the protective film with no glue residue;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of another embodiment of the protective film body of the protective film without adhesive residue of the utility model;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of another embodiment of the protective film body of the protective film without adhesive residue of the utility model;

[0026] The markings in the figure are as follows: 1. Protective film body; 11. Working area; 111. Anti-collapse convex block; 112. Anti-collapse convex point; 12. Tear handle; 2. Protective film adhesive layer; 3. Release film. DETAILED DESCRIPTION

[0027] 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.

[0028] As described in the background technology, in the prior art, when the display module, TP and cover plate are shipped, a protective film is attached to the front and back sides to protect the quality of the product during transportation, protect the cleanliness of the product and protect the surface of the product from being scratched or bruised. However, during the storage process, the protective film ages due to the adhesive layer, causing the protective film to transfer to the surface of the product, causing a series of problems such as the protective film being difficult to tear, the adhesive layer remaining and the product surface energy becoming low.

[0029] In order to solve this technical problem, the utility model provides a protective film without adhesive residue, comprising a protective film body 1, a protective film adhesive layer 2 and a release film 3, wherein the protective film adhesive layer 2 is located between the protective film body 1 and the release film 3, the protective film body 1 comprises a rectangular working area 11, the working area 11 is a non-adhesive surface, the protective film adhesive layer 2 is frame-shaped, and the protective film adhesive layer 2 is arranged on the periphery of the working area 11. A tear handle 12 is provided on one side of the working area 11.

[0030] Through the above structural design, since there is no glue in the viewing area of ​​the protective film body 1, only the protective film glue layer 2 on the outer circle remains, and there will be no problem of being difficult to tear. At the same time, the protective film glue layer 2 on the outer circle forms a sealing structure, foreign matter will not enter the product, and the cleanliness of the product will not be affected. Since the viewing area of ​​the protective film body 1 is a glue-free area, the impact on the product surface is limited, and it will not cause the problem of low glue adhesion after subsequent lamination. The protective film without glue residue can protect the dirt on the periphery from contaminating the product, and will not cause pollution caused by the transfer of the glue layer, achieving multiple goals at one stroke.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] like Figure 1 and Figure 2As shown, the protective film without adhesive residue comprises a protective film body 1, a protective film adhesive layer 2 and a release film 3, the protective film adhesive layer 2 is located between the protective film body 1 and the release film 3, the protective film body 1 comprises a rectangular working area 11, the working area 11 is a non-sticky surface, the protective film adhesive layer 2 is frame-shaped, and the protective film adhesive layer 2 is arranged on the periphery of the working area 11.

[0036] In addition, a tear handle 12 is provided on one side of the working area 11 .

[0037] It should be noted that the width of the protective film adhesive layer 2 is 5 mm to 10 mm. Preferably, the width of the protective film adhesive layer 2 is 6 mm.

[0038] In addition, the thickness of the protective film adhesive layer 2 is 0.1 mm to 0.3 mm. Preferably, the thickness of the protective film adhesive layer 2 is 0.2 mm.

[0039] The working mode of this embodiment is described below.

[0040] Since there is no glue in the viewing area of ​​the protective film body 1, only the protective film glue layer 2 on the outside is left, so there will be no problem of being difficult to tear. At the same time, the protective film glue layer 2 on the outside forms a sealing structure, foreign matter will not enter the product, and the cleanliness of the product will not be affected. Since the viewing area of ​​the protective film body 1 is a glue-free area, the impact on the product surface is limited, and it will not cause the problem of low glue adhesion after subsequent lamination. The protective film without glue residue can protect the dirt on the outside from contaminating the product, and will not cause pollution caused by the transfer of the glue layer, achieving multiple goals at one stroke.

[0041] Example 2

[0042] The protective film without adhesive residue provided in Example 1 is further optimized. Specifically, the working area 11 is provided with a plurality of rectangular anti-collapse protrusions 111.

[0043] It should be noted that the height of the anti-collapse protrusion 111 is consistent with the thickness of the protective film adhesive layer 2 .

[0044] The working mode of this embodiment is described below.

[0045] Since the height of the anti-collapse protrusion 111 is consistent with the thickness of the protective film adhesive layer 2, after lamination, it can effectively prevent the center of the protective film body 1 from collapsing and affecting the subsequent tearing operation.

[0046] Example 3

[0047] The adhesive residue-free protective film provided in Example 1 or 2 is further optimized. Specifically, a plurality of anti-collapse protrusions 112 are provided on the working area 11 .

[0048] It should be noted that the height of the anti-collapse protrusion 112 is consistent with the thickness of the protective film adhesive layer 2 .

[0049] The working mode of this embodiment is described below.

[0050] Since the height of the anti-collapse protrusion 112 is consistent with the thickness of the protective film adhesive layer 2, after lamination, the center of the protective film body 1 can be effectively prevented from collapsing, which would affect the subsequent tearing operation.

[0051] 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.

[0052] 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.

[0053] 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 protective film free of adhesive residue, characterized in that: The protective film free of adhesive residue comprises a protective film body (1), a protective film adhesive layer (2) and a release film (3), wherein the protective film adhesive layer (2) is located between the protective film body (1) and the release film (3), the protective film body (1) comprises a rectangular working area (11), the working area (11) is a non-adhesive surface, the protective film adhesive layer (2) is frame-shaped, and the protective film adhesive layer (2) is arranged on the periphery of the working area (11).

2. The adhesive residue-free protective film according to claim 1, characterized in that: A tearing handle (12) is provided on one side of the working area (11).

3. The adhesive residue-free protective film according to claim 1, characterized in that: The width of the protective film adhesive layer (2) is 5 mm to 10 mm.

4. The adhesive residue-free protective film according to claim 3, characterized in that: The width of the protective film adhesive layer (2) is 6 mm.

5. The adhesive residue-free protective film according to claim 1, characterized in that: The thickness of the protective film adhesive layer (2) is 0.1 mm to 0.3 mm.

6. The adhesive residue-free protective film according to claim 5, characterized in that: The thickness of the protective film adhesive layer (2) is 0.2 mm.

7. The adhesive residue-free protective film according to claim 1, characterized in that: A plurality of rectangular anti-collapse protrusions (111) are provided on the working area (11).

8. The adhesive residue-free protective film according to claim 7, characterized in that: The height of the anti-collapse protrusion (111) is consistent with the thickness of the protective film adhesive layer (2).

9. The adhesive residue-free protective film according to claim 1, characterized in that: A plurality of anti-collapse convex points (112) are provided on the working area (11).

10. The adhesive residue-free protective film according to claim 9, characterized in that: The height of the anti-collapse protrusion (112) is consistent with the thickness of the protective film adhesive layer (2).

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