Detailed explanation of the production method and process of PET protective film
PET protective film can be seen everywhere in electronic and industrial applications. The function of PET protective film is mainly used to protect products from scratches and dust. In view of the shortcomings of PET protective film on the market, we explain the improved PET safety protective film. The following editor will explain the production method and process of protective film.
Introduction:
Protective film, in terms of function, is to put a layer of film on the physical object we want to protect to prevent it from being damaged. There are functional protective films such as high-transparent protective film, AG frosted protective film, mobile phone mirror film, and anti-peep film on the market. Polyethylene terephthalate (PET) is a highly crystalline polymer with excellent wear resistance, electrical insulation, flame retardancy, heat aging resistance, and low water absorption. Therefore, PET protective film is widely used in electronic products such as computers, digital cameras and mobile phones, but the existing PET protective film has poor scratch resistance and tear resistance, which reduces the scope of use of PET protective film. For this reason, we propose a PET safety protective film.
Implementation requirements:
To realize the above-mentioned PET safety protective film function, the technical solution is as follows: PET safety protective film, including a first PET film layer and a second PET film layer, the upper surface of the first PET film layer is fixedly connected with an anti-scratch coating, the bottom of the first PET film layer is fixedly connected with an antibacterial layer, the bottom of the antibacterial layer is fixedly connected with a TPU film layer, the bottom of the TPU film layer is fixedly connected with a hardening coating, the bottom of the hardening coating is fixedly connected to the upper surface of the second PET film layer, the bottom of the second PET film layer is fixedly connected with a flame-retardant silicone composite layer, and the flame-retardant silicone composite layer includes a flame-retardant layer, a flame-retardant silicone mixed layer and a silicone layer.
The first PET film layer is connected to the anti-scratch coating and the antibacterial layer, and the second PET film layer is connected to the flame-retardant silicone composite layer and the hardening coating through an OCA adhesive layer. The bottom of the flame-retardant silicone composite layer is fixedly connected with a release film layer. The flame-retardant silicone mixed layer is a mixture of flame-retardant material and silicone.
Compared with the existing PET protective film, the new PET safety protective film has the following beneficial effects:
1. The utility model has a scratch-resistant coating fixedly connected to the upper surface of the first PET film layer, and a flame-retardant silicone composite layer fixedly connected to the bottom of the second PET film layer, which effectively improves the scratch resistance, tear resistance and flame retardancy of the protective film, and the silicone layer has the ability to automatically adsorb the screen glass, which can be applied to screens with a certain curvature, and has the ability to quickly discharge bubbles, which improves the fitting effect between the protective film and the screen glass.
2. Through the effects of the first PET film layer, the second PET film layer and the hardened coating, the utility model can make the protective film have a better buffering effect when subjected to explosions or large impacts, with good explosion-proof effect, safety and reliability.
Figure 1 is a schematic diagram of the structure of the new PET protective film;
Figure 2 is a schematic diagram of the structure of the flame-retardant silicone composite layer of the new PET protective film.
In the figure: 1 first PET film layer, 2 anti-scratch coating, 3 OCA glue layer, 4 antibacterial layer, 5 TPU film layer, 6 release film layer, 7 flame retardant silicone composite layer, 71 flame retardant layer, 72 flame retardant silicone mixed layer, 73 silicone layer, 8 second PET film layer, 9 hardening coating.
PET safety protection film process
The following will combine the attached drawings to clearly and completely describe the technical solution of PET safety protection film.
Please refer to Figure 1-2 PET safety protection film, including a first PET film layer 1 and a second PET film layer 8, the upper surface of the first PET film layer 1 is fixedly connected with an anti-scratch coating 2, the bottom of the first PET film layer 1 is fixedly connected with an antibacterial layer 4, the bottom of the antibacterial layer 4 is fixedly connected with a TPU film layer 5, and the bottom of the TPU film layer 5 is fixedly connected with a hardening coating 9, which can make the protective film have a better buffering effect when subjected to explosions or large impacts, and has good explosion-proof effect, safety and reliability. The bottom of the hardening coating 9 is fixedly connected to the upper surface of the second PET film layer 8, and the bottom of the second PET film layer 8 is fixedly connected with a flame-retardant silicone composite layer 7, which effectively improves the protection of the present invention. The scratch resistance, tear resistance and flame retardancy of the protective film. The first PET film layer 1 and the scratch-resistant coating 2 and the antibacterial layer 4, as well as the second PET film layer 8 and the flame-retardant silicone composite layer 7 and the hardened coating 9 are connected by the OCA adhesive layer 3. The flame-retardant silicone composite layer 7 includes a flame-retardant layer 71, a flame-retardant silicone mixed layer 72 and a silicone layer 73. The silicone layer 73 has the ability to automatically adsorb the screen glass, which can be applied to screens with a certain curvature, and has the ability to quickly discharge bubbles, thereby improving the bonding effect between the protective film and the screen glass. The flame-retardant silicone mixed layer 72 is a mixture of flame-retardant materials and silicone. The bottom of the flame-retardant silicone composite layer 7 is fixedly connected with a release film layer 6.
When in use, the anti-scratch coating 2 is fixedly connected to the upper surface of the first PET film layer 1, and the flame-retardant silicone composite layer 7 is fixedly connected to the bottom of the second PET film layer 8, which effectively improves the scratch resistance, tear resistance and flame retardancy of the protective film, and the silicone layer 73 has the ability to automatically adsorb the screen glass, which can be applied to screens with a certain curvature, and has the ability to quickly discharge bubbles, which improves the bonding effect between the protective film and the screen glass. At the same time, through the effects of the first PET film layer 1, the second PET film layer 8 and the hardening coating 9, the protective film can have a better buffering effect when subjected to explosions or large impacts, and has a good explosion-proof effect, safety and reliability.
In summary: the PET safety protective film has an anti-scratch coating 2 fixedly connected to the upper surface of the first PET film layer 1, and a flame-retardant silicone composite layer 7 fixedly connected to the bottom of the second PET film layer 8, which solves the problem that the scratch resistance and tear resistance of the existing PET protective film are poor, and the use range of the PET protective film is reduced.
Although the embodiments of the utility model have been shown and described, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the PET safety protection film, and the scope of the PET safety protection film is defined by the attached claims and their equivalents.
Technical features:
1. A PET safety protection film, comprising a first PET film layer (1) and a second PET film layer (8), characterized in that: the upper surface of the first PET film layer (1) is fixedly connected with an anti-scratch coating (2), the bottom of the first PET film layer (1) is fixedly connected with an antibacterial layer (4), the bottom of the antibacterial layer (4) is fixedly connected with a TPU film layer (5), the bottom of the TPU film layer (5) is fixedly connected with a hardening coating (9), the bottom of the hardening coating (9) is fixedly connected to the upper surface of the second PET film layer (8), the bottom of the second PET film layer (8) is fixedly connected with a flame retardant silicone composite layer (7), and the flame retardant silicone composite layer (7) includes a flame retardant layer (71), a flame retardant silicone mixed layer (72) and a silicone layer (73).
2. PET safety protective film, the first PET film layer (1) is connected to the anti-scratch coating (2) and the antibacterial layer (4), and the second PET film layer (8) is connected to the flame-retardant silicone composite layer (7) and the hardening coating (9) through an OCA adhesive layer (3).
3. PET safety protective film, the bottom of the flame-retardant silicone composite layer (7) is fixedly connected with a release film layer (6).
4. PET safety protective film, the flame-retardant silicone mixed layer (72) is a mixture of flame-retardant material and silicone.
This is the preparation method and process content of the PET safety protective film. The above-mentioned PET safety protective film is improved based on the existing PET protective film and can be better applied to the protection of the optical industry, including the currently used electronic products with a large amount of light. The PET protective film has high light transmittance and can be fully applied to the protection of glass products such as mobile phones, computers, and LCD screens.
