High-toughness PET (Polyethylene Terephthalate) protective film

Abstract

The utility model discloses a high-toughness PET protective film, and particularly relates to the technical field of PET protective films, the high-toughness PET protective film comprises a PET protective film body, the top side of the PET protective film body is provided with a first composite layer, and the bottom side of the PET protective film body is provided with a second composite layer; the PET protective film body comprises a first base material layer and a second base material layer, the first base material layer and the second base material layer are arranged in a staggered mode, and one side of the interior of each of the first base material layer and the second base material layer is connected with an elastic layer. The first base material layer and the second base material layer of the U-shaped structure are mutually staggered and embedded to form the PET protective film body, so that the whole structure of the PET protective film is compact and firm and is not easy to break, the elastic layer is arranged between the first base material layer and the second base material layer, the toughness strength of the PET protective film body can be greatly enhanced, the PET protective film body can be quickly recovered when being bent, and the service life of the PET protective film is prolonged. Furthermore, the protection performance of the PET protection film can be effectively realized, and the use effect is relatively good.

Description

Technical Field

[0001] The utility model relates to the technical field of PET protective films, and particularly relates to a high-toughness PET protective film. Background Art

[0002] The full name of PET is polyethylene terephthalate, which is prepared by the condensation polymerization reaction of terephthalic acid and ethylene glycol. PET materials have the advantages of light weight, high strength, good transparency and gas barrier property, non-toxic, odorless, etc., and are mostly used for surface protection of glass, heat insulation, anti-ultraviolet, etc. With the maturity of touch technology, PET protective films are naturally used for surface protection of mobile phones and other electronic products.

[0003] At present, when the existing PET protective films are applied, due to their thin and light texture, they are prone to bending and breaking under the action of external forces during use, and the overall toughness strength is poor and very fragile, thus greatly affecting the actual protection performance of the PET protective films and resulting in poor use effects. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-toughness PET protective film. By arranging a first base material layer and a second base material layer with a U-shaped structure to be interlaced and embedded with each other to form the PET protective film body, the overall structure can be relatively compact and firm, not easily broken, and an elastic layer is arranged between them to greatly enhance the toughness strength of the PET protective film body, so that it can quickly recover when bent, and thus the protection performance of the PET protective film can be effectively realized and the use effect is better, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a high-toughness PET protective film, comprising:

[0006] A PET protective film body, a first composite layer is arranged on the top side of the PET protective film body, and a second composite layer is arranged on the bottom side of the PET protective film body;

[0007] The PET protective film body comprises a first base material layer and a second base material layer, the first base material layer and the second base material layer are arranged in an interlaced manner, and elastic layers are connected to one side inside the first base material layer and the second base material layer respectively. Sealing glue layers are arranged at the ports of the first base material layer and the second base material layer, and the sealing glue layers are connected to the elastic layers.

[0008] Preferably, both the first base material layer and the second base material layer are U-shaped.

[0009] Preferably, the second composite layer comprises a second flame retardant layer arranged on the bottom side of the second base material layer, and a waterproof layer is connected to the bottom side of the second flame retardant layer.

[0010] Preferably, a wear-resistant layer is provided on the bottom side of the waterproof layer.

[0011] Preferably, the first composite layer includes a first flame-retardant layer provided on the top side of the first base layer, and a high-temperature resistant layer is provided on the top side of the first flame-retardant layer.

[0012] Preferably, an adhesive layer is provided on the top side of the high-temperature resistant layer, and a release paper layer is connected to the top side of the adhesive layer.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] By arranging the first base layer and the second base layer with a U-shaped structure to be interlaced and fitted with each other to form the PET protective film body, the overall structure can be made relatively compact and firm, not easily broken, and an elastic layer is arranged between them, which can greatly enhance the toughness strength of the PET protective film body, enabling it to quickly recover when bent, and thus effectively realizing the protective performance of the PET protective film, with good use effects.

[0015] By arranging the sealant layer, the ports of the first base layer and the second base layer can be tightly closed, thereby further improving the sealing and waterproof performance of the PET protective film body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure between the first base layer and the second base layer of the present utility model.

[0020] Description of the reference numerals:

[0021] 1. PET protective film body; 101. First base layer; 102. Second base layer; 2. Release paper layer; 3. Wear-resistant layer; 4. First composite layer; 5. Second composite layer; 6. Adhesive layer; 7. High-temperature resistant layer; 8. First flame-retardant layer; 9. Second flame-retardant layer; 10. Waterproof layer; 11. Elastic layer; 12. Sealant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] The present utility model provides a high-toughness PET protective film as shown in Figures 1-3 which includes:

[0024] A PET protective film body 1, a first composite layer 4 is arranged on the top side of the PET protective film body 1, and a second composite layer 5 is arranged on the bottom side of the PET protective film body 1;

[0025] The second composite layer 5 includes a second flame-retardant layer 9 arranged on the bottom side of the second substrate layer 102, and a waterproof layer 10 is connected to the bottom side of the second flame-retardant layer 9.

[0026] A wear-resistant layer 3 is arranged on the bottom side of the waterproof layer 10. The wear resistance of the PET protective film can be enhanced through the wear-resistant layer 3.

[0027] The first composite layer 4 includes a first flame-retardant layer 8 arranged on the top side of the first substrate layer 101, and a high-temperature resistant layer 7 is arranged on the top side of the first flame-retardant layer 8.

[0028] Through the dual arrangement of the first flame-retardant layer 8 and the second flame-retardant layer 9, the flame-retardant performance of the PET protective film can be greatly improved, and the high-temperature resistant performance of the PET protective film can be greatly enhanced through the high-temperature resistant layer 7.

[0029] An adhesive layer 6 is arranged on the top side of the high-temperature resistant layer 7, and a release paper layer 2 is connected to the top side of the adhesive layer 6.

[0030] During use, the release paper layer 2 on the adhesive layer 6 can be torn off, so that the PET protective film can be pasted and used.

[0031] The PET protective film body 1 includes a first substrate layer 101 and a second substrate layer 102. The first substrate layer 101 and the second substrate layer 102 are arranged in an interlaced manner, and an elastic layer 11 is connected to one side inside both the first substrate layer 101 and the second substrate layer 102. Sealing glue layers 12 are provided at the ports of the first substrate layer 101 and the second substrate layer 102, and the sealing glue layers 12 are connected to the elastic layer 11.

[0032] Both the first substrate layer 101 and the second substrate layer 102 are U-shaped.

[0033] The PET protective film body 1 is formed by the interlocking of a first base material layer 101 and a second base material layer 102 with a U-shaped structure. After pressing, they can be tightly combined together, making the structure relatively compact and firm, not easily broken. And an elastic layer 11 is provided between them. The elastic layer 11 is made of a polyester fiber material with a high elastic recovery rate, which can greatly enhance the toughness strength of the PET protective film body 1, enabling it to quickly recover when bent, and thus effectively realizing the protective performance of the PET protective film, with a good use effect.

[0034] Moreover, through the provided sealant layer 12, the ports of the first base material layer 101 and the second base material layer 102 can be tightly closed, thereby further improving the sealing and waterproof performance of the PET protective film body 1.

[0035] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-toughness PET protective film, characterized in that, Comprising: A PET protective film body (1), a first composite layer (4) is provided on the top side of the PET protective film body (1), and a second composite layer (5) is provided on the bottom side of the PET protective film body (1); The PET protective film body (1) includes a first base material layer (101) and a second base material layer (102), the first base material layer (101) and the second base material layer (102) are arranged in an interlaced manner, and elastic layers (11) are connected to one side inside the first base material layer (101) and the second base material layer (102). Sealant layers (12) are provided at the ports of the first base material layer (101) and the second base material layer (102), and the sealant layers (12) are connected to the elastic layers (11).

2. The high-toughness PET protective film according to claim 1, wherein: Both the first base material layer (101) and the second base material layer (102) are U-shaped.

3. A highly tough PET protective film according to claim 1, characterized in that: The second composite layer (5) includes a second flame retardant layer (9) provided on the bottom side of the second base material layer (102), and a waterproof layer (10) is connected to the bottom side of the second flame retardant layer (9).

4. The high-toughness PET protective film according to claim 3, wherein: A wear-resistant layer (3) is provided on the bottom side of the waterproof layer (10).

5. A highly tough PET protective film according to claim 1, characterized in that: The first composite layer (4) includes a first flame retardant layer (8) provided on the top side of the first base material layer (101), and a high-temperature resistant layer (7) is provided on the top side of the first flame retardant layer (8).

6. The high-toughness PET protective film according to claim 5, wherein: An adhesive layer (6) is provided on the top side of the high-temperature resistant layer (7), and a release paper layer (2) is connected to the top side of the adhesive layer (6).

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