High-strength friction-resistant POF heat shrinkage film

Abstract

The utility model discloses a high-strength friction-resistant POF heat shrink film which comprises a shrink film base layer, a fixing groove and a first connecting layer are formed in the center of the inner end face of the shrink film base layer, the first connecting layer is fixedly arranged on the upper end face of the shrink film base layer, and a second connecting layer is fixedly arranged on the lower end face of the shrink film base layer. By arranging the wear-resistant supporting layer, the shrink film base layer and the second connecting layer, the two sets of wear-resistant layers outside the shrink film base layer can perform all-around protection operation on the outside of the shrink film, meanwhile, the wear resistance of the shrink film can be improved, and the multiple sets of protection protrusions can perform preliminary protection on the outside of the wear-resistant layers, so that the wear resistance of the shrink film is improved. Meanwhile, the first connecting layer, the shrink film base layer, the tensile core layer and the second connecting layer can be three-dimensionally supported by the multiple groups of connecting fibers, so that the overall strength and wear resistance of the shrink film are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of POF heat shrinkable films, in particular to a high-strength and friction-resistant POF heat shrinkable film. Background Art

[0002] POF heat shrink film, the full name is multi-layer co-extruded polyolefin heat shrink film, is a new type of environmentally friendly shrink film that is currently the most widely used and rapidly developing in the world. It is widely used in the packaging of products in various industries such as food and beverages, handicrafts, electronic appliances, and mechanical parts.

[0003] For example, the utility model patent disclosed in the publication number is CN217863095U, a high-strength and friction-resistant POF heat shrink film, comprising: a heat shrink film substrate, a first wear-resistant layer and air holes, wherein the heat shrink film substrate is connected to a first tensile layer on one side. The high-strength and friction-resistant POF heat shrink film, by arranging the first tensile layer and the second tensile layer connected on both sides of the second tensile layer, strengthens the tensile performance of the POF heat shrink film, prevents the POF heat shrink film from being torn from the middle due to the large pulling force when in use, the first wear-resistant layer and the second wear-resistant layer connected to one side of the first tensile layer and the second tensile layer respectively, can strengthen the friction resistance of the POF heat shrink film, prevent the POF heat shrink film from being damaged after being worn, and the anti-ultraviolet layer on one side of the first wear-resistant layer is directly in contact with the outside world, blocks the ultraviolet rays from the outside world, and slows down the aging speed of the POF heat shrink film. In this way, the above operation can facilitate strengthening the use strength of the POF heat shrink film and prolong the use time of the POF heat shrink film.

[0004] Although the above-mentioned POF film has certain tensile and wear resistance, the tensile resistance inside the POF heat shrinkable film is insufficient. At the same time, the overall deformation resistance of the POF heat shrinkable film when subjected to external force is insufficient. Therefore, a high-strength and friction-resistant POF heat shrinkable film is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a high-strength and friction-resistant POF heat shrinkable film to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a high-strength and friction-resistant POF heat shrinkable film, comprising a shrinkable film base, wherein a fixing groove is provided at the center of the inner end surface of the shrinkable film base.

[0007] A first connecting layer, wherein the first connecting layer is fixedly arranged on the upper end surface of the shrink film base layer, and a second connecting layer is fixedly arranged on the lower end surface of the shrink film base layer;

[0008] A tensile core layer, wherein the tensile core layer is fixedly disposed on the inner end surface of the shrink film base layer through the fixing groove;

[0009] A wear-resistant support layer is fixedly arranged inside the shrink film base layer.

[0010] Preferably, the wear-resistant support layer includes two groups of wear-resistant layers, and the two groups of wear-resistant layers are fixedly connected internally by connecting fibers, and protective protrusions are equidistantly arranged on the outer end surfaces of the two groups of wear-resistant layers.

[0011] Preferably, the first connecting layer, the shrink film base layer, the tensile core layer and the second connecting layer are all fixedly connected with connecting fibers, and multiple groups of connecting fibers can penetrate the first connecting layer, the shrink film base layer, the tensile core layer and the second connecting layer, thereby forming an all-round three-dimensional support and improving the overall strength of the shrink film.

[0012] Preferably, the material of the tensile core layer is PE, and the material of the first connecting layer and the second connecting layer is PVC, which can effectively improve the connection stability inside the shrink film.

[0013] Preferably, the wear-resistant layer is made of nylon, which can improve the wear resistance of the outer part of the shrink film.

[0014] Preferably, the connecting fiber is made of polyimide, which can effectively improve the tensile resistance and overall strength of the shrink film.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a wear-resistant support layer, a shrink film base layer and a second connecting layer. The two groups of wear-resistant layers outside the shrink film base layer can perform all-round protection operations on the outside of the shrink film, and at the same time can also improve its wear resistance. Multiple groups of protective protrusions can provide preliminary protection for the outside of the wear-resistant layer, further improving the wear resistance of the outside of the shrink film. At the same time, multiple groups of connecting fibers can provide three-dimensional support to the first connecting layer, the shrink film base layer, the tensile core layer and the second connecting layer, further improving the overall strength and wear resistance of the shrink film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the wear-resistant supporting layer of the utility model.

[0020] In the figure: 1-wear-resistant support layer, 2-first connecting layer, 3-shrink film base layer, 4-tensile core layer, 5-second connecting layer, 6-fixing groove, 11-wear-resistant layer, 12-protective protrusion, 13-connecting fiber. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides an embodiment: a high-strength and friction-resistant POF heat shrinkable film, comprising a shrinkable film base 3, a fixing groove 6 is provided at the center of the inner end surface of the shrinkable film base 3,

[0023] A first connecting layer 2, the first connecting layer 2 is fixedly arranged on the upper end surface of the shrink film base layer 3, and a second connecting layer 5 is fixedly arranged on the lower end surface of the shrink film base layer 3;

[0024] The tensile core layer 4 is fixed on the inner end surface of the shrink film base layer 3 through the fixing groove 6;

[0025] The wear-resistant supporting layer 1 is fixedly arranged inside the shrink film base layer 3 .

[0026] The wear-resistant support layer 1 includes two groups of wear-resistant layers 11 . The two groups of wear-resistant layers 11 are fixedly connected by connecting fibers 13 . Protective protrusions 12 are equidistantly arranged on the outer end surfaces of the two groups of wear-resistant layers 11 .

[0027] The first connecting layer 2, the shrink film base layer 3, the tensile core layer 4 and the second connecting layer 5 are all fixedly connected through the connecting fibers 13. Multiple groups of connecting fibers 13 can penetrate the first connecting layer 2, the shrink film base layer 3, the tensile core layer 4 and the second connecting layer 5, thereby forming an all-round three-dimensional support and improving the overall strength of the shrink film.

[0028] The material of the tensile core layer 4 is PE, and the material of the first connecting layer 2 and the second connecting layer 5 is PVC, which can effectively improve the connection stability inside the shrink film.

[0029] The wear-resistant layer 11 is made of nylon, which can improve the wear resistance of the outer part of the shrink film.

[0030] The connecting fiber 13 is made of polyimide, which can effectively improve the tensile resistance and overall strength of the shrink film.

[0031] Working principle: When in use, the two groups of wear-resistant layers 11 outside the shrink film base layer 3 can provide all-round protection for the outside of the shrink film, while also improving its wear resistance, and multiple groups of protective protrusions 12 can provide preliminary protection for the outside of the wear-resistant layer 11, further improving the wear resistance of the outside of the shrink film, and at the same time, multiple groups of connecting fibers 13 can provide three-dimensional support to the first connecting layer 2, the shrink film base layer 3, the tensile core layer 4 and the second connecting layer 5, further improving the overall strength and stability of the shrink film.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength, friction-resistant POF heat shrinkable film, comprising a shrinkable film base layer (3), wherein a fixing groove (6) is provided at the center of the inner end surface of the shrinkable film base layer (3), characterized in that: A first connecting layer (2), the first connecting layer (2) being fixedly arranged on the upper end surface of the shrink film base layer (3), and a second connecting layer (5) being fixedly arranged on the lower end surface of the shrink film base layer (3); A tensile core layer (4), the tensile core layer (4) being fixedly arranged on the inner end surface of the shrink film base layer (3) through the fixing groove (6); A wear-resistant support layer (1), wherein the wear-resistant support layer (1) is fixedly arranged inside the shrink film base layer (3).

2. The high-strength, friction-resistant POF heat shrinkable film according to claim 1, characterized in that: The wear-resistant support layer (1) comprises a wear-resistant layer (11), wherein two groups of the wear-resistant layers (11) are provided, and the two groups of the wear-resistant layers (11) are fixedly connected internally by connecting fibers (13), and protective protrusions (12) are equidistantly arranged on the outer end surfaces of the two groups of the wear-resistant layers (11).

3. The high-strength, friction-resistant POF heat shrinkable film according to claim 2, characterized in that: The first connecting layer (2), the shrink film base layer (3), the tensile core layer (4) and the second connecting layer (5) are all connected to the connecting fibers (13) in a through-and-through fixed manner.

4. The high-strength, friction-resistant POF heat shrinkable film according to claim 2, characterized in that: The material of the tensile core layer (4) is PE, and the material of the first connecting layer (2) and the second connecting layer (5) is PVC.

5. The high-strength, friction-resistant POF heat shrinkable film according to claim 2, characterized in that: The material of the wear-resistant layer (11) is nylon.

6. The high-strength, friction-resistant POF heat shrinkable film according to claim 2, characterized in that: The connecting fiber (13) is made of polyimide.

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