Wear-resistant and scratch-resistant PET (Polyethylene Terephthalate) protective film

Abstract

The utility model relates to the technical field of protective films, in particular to a wear-resistant and scratch-resistant PET (Polyethylene Terephthalate) protective film which comprises a first surface film and a second surface film which are connected with each other in an adhesive manner, the second surface film is connected with a bottom film through a thickness-variable buffer layer, and the bottom film is connected with a release film layer in an adhesive manner. The front face and the back face of the release film layer are connected with bottom layer films, abrasion-resistant protruding points are arranged on the face, away from the second surface layer film, of the first surface layer film, an abrasion-resistant coating is arranged on the face, away from the buffer layer, of the second surface layer film, and an abrasion-resistant silk screen is embedded in the second surface layer film. According to the wear-resistant and scratch-resistant PET protective film disclosed by the utility model, two surfaces share one layer of release film, the front surface and the back surface of the release film are fully utilized, and the whole wear-resistant and scratch-resistant PET protective film can be folded in a multi-stage Z shape, so that the transportation and storage space is saved, and the wear-resistant and scratch-resistant PET protective film is convenient to unfold and take; the wear-resistant salient points are arranged to reduce the wear of the film surface; the wear-resistant silk screen is embedded, so that impact force can be uniformly dispersed on the whole protective film; and the service life of the product is effectively prolonged by arranging the double wear-resistant layers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective film, especially relates to a wear -resisting scratch -resistant PET protective film. BACKGROUND

[0002] PET is a recyclable material, which can be recycled and reprocessed into new PET products or other plastic products. This helps to reduce resource waste and environmental pollution. PET protective film plays an important protective role in many industries such as electronics, automobiles, printing and packaging due to its excellent performance.

[0003] With the development of science and technology, the requirements for materials are also increasing, and the wear resistance of PET protective film still has a lot of room for improvement to meet the increasingly strict use requirements. SUMMARY

[0004] The utility model discloses a novel wear -resisting scratch -resistant PET protective film, and aims at solving the problem that the protective film of prior art is easy to scratch and wear in the use process, so as to prolong the service life of PET protective film, reduce the replacement frequency and save the use cost.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following scheme:

[0006] A wear -resisting scratch -resistant PET protective film, first surface layer film and second surface layer film are connected by adhesive, the second surface layer film is connected with the bottom layer film through the buffer layer of variable thickness, the bottom layer film is connected with the release film layer by adhesive, the positive and negative two sides of the release film layer are connected with the bottom layer film, the first surface layer film is provided with wear -resisting convex point on the side away from the second surface layer film, the second surface layer film is provided with wear -resisting coating on the side away from the buffer layer, the second surface layer film is embedded with wear -resisting wire mesh.

[0007] Further, the side of the second surface layer film in contact with the buffer layer is provided with a plurality of equidistant parallel triangular ribs, the side of the bottom layer film in contact with the buffer layer is also provided with a plurality of equidistant parallel triangular ribs, the buffer layer is compressible and resilient, and is sandwiched between the two triangular ribs, with a continuous zigzag cross section.

[0008] Further, the release film layer is flexible and foldable, and a gap of 3mm to 10mm is provided between the two adjacent bottom layer films connected to one side of the release film layer.

[0009] Further, the wear -resisting wire mesh is woven from transparent chemical fiber filaments, and has a plurality of regularly arranged diamond-shaped mesh holes.

[0010] Further, the triangular ribs connected to the second surface layer film and the triangular ribs connected to the bottom layer film are arranged in a one-to-one staggered manner.

[0011] Further, the first surface layer film has a thickness less than the second surface layer film, and both have a hardness of 4H or more.

[0012] Further, the first surface layer film can be peeled off from the second surface layer film, and the bottom layer film can be peeled off from the release film layer.

[0013] Further, the release film layer is a continuous and uninterrupted long strip, and the bottom layer film is arranged on the front and back surfaces of the release film layer in a one-to-one interval.

[0014] Further, the hardness of the bottom layer film is less than that of any one of the first surface layer film and the second surface layer film.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a wear-resistant scratch-proof PET protective film double-sided shared one release film, utilizes the front and back surfaces of the release film fully, saves the use of the release film, and the whole can be folded in multistage " Z " shape, saves transportation and storage space, and is convenient to unfold and use, the first surface layer film is provided with the wear-resistant convex point of roundness and no angle, and in the friction process, the convex point can disperse stress, and reduce the contact wear of film and object, the second surface layer film is embedded with wear-resistant wire mesh, can evenly disperse the impact force to the whole protective film, reduces the risk of local damage, and after the first surface layer film reaches the wear limit, can be torn, the wear-resistant scratch-proof performance of the whole is improved significantly, and the service life of product is effectively prolonged. ACCURACY OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a side surface structure schematic view of the utility model;

[0019] Figure 3 It is Figure 2 It is an enlarged schematic view of A in the middle;

[0020] Figure 4 It is an exploded structure schematic view of the utility model;

[0021] In the drawing: 1, first surface layer film, 1a, wear-resistant convex point, 2, second surface layer film, 2a, wear-resistant coating, 2b, wear-resistant wire mesh, 3, buffer layer, 4, bottom layer film, 5, release film layer, 6, triangular rib. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Example: Figures 1 to 4 As shown, a wear-resistant and scratch-resistant PET protective film comprises a first surface film 1 and a second surface film 2, which are adhesively connected. The second surface film 2 is connected to a base film 4 via a buffer layer 3 of variable thickness. The base film 4 is adhesively connected to a release film layer 5. The release film layer 5 is connected to the base film 4 on both sides. The first surface film 1 is provided with rounded, non-angular wear-resistant bumps 1a on the side away from the second surface film 2. During friction, the bumps can disperse stress, reduce contact wear between the film surface and the object, and extend the service life of the film. This is particularly important for film materials that need to be exposed to friction environments for a long time. The second surface film 2 is provided with a wear-resistant coating 2a on the side away from the buffer layer 3. The wear-resistant coating 2a is a polymer coating, such as a polyurethane coating or a polytetrafluoroethylene coating. The second surface film 2 is embedded with a wear-resistant mesh 2b. The wear-resistant mesh 2b is woven from transparent chemical fibers and has a plurality of regularly arranged diamond-shaped meshes. When the protective film is subjected to external force, the wear-resistant mesh 2b can disperse the impact force. It is equivalent to a strong mesh skeleton, which evenly distributes the impact force to the entire protective film and reduces the risk of local damage.

[0024] Specifically, the second surface film 2 and the bottom film 4 are connected in the following way: a number of equidistant and parallel triangular ribs 6 are provided on the side of the second surface film 2 in contact with the buffer layer 3, and a number of equidistant and parallel triangular ribs 6 are also provided on the side of the bottom film 4 in contact with the buffer layer 3. The buffer layer 3 is compressible and resilient and has adhesiveness. It is sandwiched between the two layers of triangular ribs 6, and its cross-section is a continuous serrated shape. The triangular ribs 6 connected to the second surface film 2 and the triangular ribs 6 connected to the bottom film 4 are staggered one by one; in this embodiment: the serrated engagement has the effect of limiting the relative slippage of the second surface film 2 and the bottom film 4. When the protected object is impacted by external force, the buffer layer 3 can quickly absorb and disperse the impact force. It converts the instantaneous strong impact force into a relatively mild force through its own elastic deformation, thereby reducing the risk of damage to the protected object, and making the surface of the first surface film 1 or the second surface film 2 not easily worn or scratched.

[0025] The release film layer 5 is a continuous and uninterrupted long strip, flexible and foldable, specifically a multi-level "Z"-shaped folding, which saves transportation and storage space and is easy to unfold and use. The bottom film 4 is arranged one by one on the front and back sides of the release film layer 5. The double-sided bottom film 4 shares a layer of release film, saving the use of release film. There is a 3mm to 10mm gap between the two adjacent bottom films 4 connected on one side of the release film layer 5. The bottom film 4 can be peeled off from the release film layer 5, and the first surface film 1 can be peeled off from the second surface film 2. When the first surface film 1 is worn to the limit, it can be peeled off to expose the second surface film 2 for continued use, thereby achieving the effect of a double wear-resistant layer.

[0026] A further optimization solution is that the thickness of the first surface film 1 is smaller than that of the second surface film 2, the hardness of both is ≥4H, the hardening treatment is wear-resistant and scratch-resistant, and the hardness of the bottom film 4 is smaller than that of either the first surface film 1 or the second surface film 2.

[0027] When actually using the wear-resistant and scratch-resistant PET protective film of the present invention, the bottom film 4 is peeled off from the release film layer 5 as needed, and the bottom film 4 is pasted on the protected object for use. After the first surface film 1 reaches the wear limit, it can be torn off to expose the second surface film 2 for use, saving the time of replacing the entire protective film with a new one. The double wear-resistant layer design significantly extends the service life of the protective film.

[0028] The above description is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, any changes, modifications or additions are all included in the protection scope of the present invention.

Claims

1. A wear-resistant and scratch-resistant PET protective film, characterized by: The invention comprises a first surface film (1) and a second surface film (2) connected by adhesive, wherein the second surface film (2) is connected to a bottom film (4) via a buffer layer (3) with variable thickness, the bottom film (4) is adhesively connected to a release film layer (5), and both the front and back sides of the release film layer (5) are connected to the bottom film (4), the first surface film (1) is provided with wear-resistant protrusions (1a) on a side away from the second surface film (2), the second surface film (2) is provided with a wear-resistant coating (2a) on a side away from the buffer layer (3), and the second surface film (2) is embedded with a wear-resistant wire mesh (2b).

2. The wear-resistant and scratch-resistant PET protective film according to claim 1, characterized in that: The side of the second surface film (2) in contact with the buffer layer (3) is provided with a plurality of equidistant and parallel triangular ribs (6), and the side of the bottom film (4) in contact with the buffer layer (3) is also provided with a plurality of equidistant and parallel triangular ribs (6). The buffer layer (3) is compressible and resilient, and is sandwiched between two layers of triangular ribs (6), with a continuous sawtooth cross-section.

3. The wear-resistant and scratch-resistant PET protective film according to claim 1, characterized in that: The release film layer (5) is flexible and foldable, and a gap of 3 mm to 10 mm is provided between two adjacent bottom films (4) connected on one side.

4. The wear-resistant and scratch-resistant PET protective film according to claim 1, characterized in that: The wear-resistant wire mesh (2b) is woven from transparent chemical fibers and has a plurality of regularly arranged diamond-shaped mesh holes.

5. The wear-resistant and scratch-resistant PET protective film according to claim 1, characterized in that: The triangular ribs (6) connected to the second surface film (2) and the triangular ribs (6) connected to the bottom film (4) are staggered in position.

6. The wear-resistant and scratch-resistant PET protective film according to claim 1, characterized in that: The thickness of the first surface film (1) is smaller than that of the second surface film (2), and the hardness of both is ≥4H.

7. The wear-resistant and scratch-resistant PET protective film according to claim 3, characterized in that: The first surface film (1) can be peeled off from the second surface film (2), and the bottom film (4) can be peeled off from the release film layer (5).

8. The wear-resistant and scratch-resistant PET protective film according to claim 7, characterized in that: The release film layer (5) is in the shape of a continuous and uninterrupted long strip, and the bottom film (4) is arranged on both the front and back sides of the release film layer (5) at intervals.

9. The wear-resistant and scratch-resistant PET protective film according to claim 6, characterized in that: The hardness of the bottom film (4) is smaller than that of either the first surface film (1) or the second surface film (2).

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