Double-sided anti-fog PET (Polyethylene Terephthalate) protective film

Abstract

The utility model discloses a double-sided antifogging PET (polyethylene terephthalate) protective film, which relates to the technical field of PET protective films and comprises a substrate layer, strip-shaped grooves are symmetrically formed in the substrate layer, stabilizing strips are arranged on the inner sides of the strip-shaped grooves, function adding layers are arranged on two sides of the substrate layer, placing grooves are formed in the function adding layers, and the stabilizing strips are arranged in the placing grooves. Wherein a connecting layer is adhered to one side, far away from the base layer, of one function adding layer, a protective layer is adhered to one side, far away from the base layer, of the other function adding layer, and penetrating holes are uniformly formed in the connecting layer and correspond to the placing grooves; and one side, far away from the function adding layer, of the stabilizing strip is adhered to the strip-shaped groove. The strip-shaped groove can be used for keeping the integrity of the film when the film is torn off from a protected object, and the anti-tearing performance of the film can be enhanced through the stabilizing strip filled in the inner side of the strip-shaped groove.

Description

Technical Field

[0001] This utility model relates to the field of PET protective film technology, and in particular to a double-sided anti-fog PET protective film. Background Technology

[0002] PET protective film material is transparent and colorless, and its surface has undergone hardening treatment. Generally, depending on the place of origin, the surface hardening value of PET protective film material is between 3H and 4H. The better the surface hardening, the stronger its wear resistance. Light transmittance is also a major property of PET protective film material. Generally, the light transmittance is above 90%. High light transmittance not only provides us with a good visual effect when using related instruments, but also has a good protective effect on the eyes. With the rapid development of consumer electronics, PET protective film has become an indispensable product for the touch capacitive screen protection function of electronic products such as smartphones and tablets.

[0003] Existing PET protective films are prone to overall deformation during stretching, which makes them susceptible to tearing.

[0004] Furthermore, most current PET protective films possess basic functions such as dirt and grime protection. However, when exposed to moisture or cold air, the instantaneous temperature difference can easily cause fogging to form on the surface of the PET protective film, inevitably affecting its light transmittance. Therefore, we propose a double-sided anti-fog PET protective film to address the aforementioned technical problems. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a double-sided anti-fog PET protective film to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base layer, on which symmetrical strip grooves are formed, and a stabilizing strip is provided on the inner side of the strip grooves. Functional addition layers are provided on both sides of the base layer, and placement grooves are formed on the functional addition layers. A connecting layer is adhered to the side of one functional addition layer away from the base layer, and a protective layer is adhered to the side of the other functional addition layer away from the base layer.

[0007] As a preferred embodiment, the connecting layer is provided with uniformly distributed through holes, which correspond to the placement grooves.

[0008] As a preferred embodiment, the side of the stabilizing strip furthest from the functional addition layer is adhered to the strip groove.

[0009] As a preferred embodiment, the thickness of the stabilizing strip is 0.5 μm to 1 μm.

[0010] As a preferred embodiment, the diameter of the placement groove is 0.2 μm to 0.8 μm.

[0011] As a preferred embodiment, the protective layer is an optical anti-fog coating.

[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:

[0013] This device uses a strip groove to maintain the integrity of the film when it is torn apart from the protected item. The stabilizing strip filled inside the strip groove enhances the tear resistance of the film. The functional additive layers on both sides of the base layer can add anti-fogging agent inside the placement groove to achieve a double-sided anti-fogging effect during the use of the film, ensuring the light transmittance of the PET protective film. The connecting layer enables the film to bond with the protected item during use. The protective layer protects the entire outer side of the film after it is applied to the protected item, enhancing the durability of the film.

[0014] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the PET protective film structure according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the functional addition layer structure according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the base layer structure of an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached diagram: 1. Base layer; 2. Strip groove; 3. Stabilizing strip; 4. Functional addition layer; 5. Placement groove; 6. Connecting layer; 7. Through hole; 8. Protective layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Please see Figures 1 to 3 This utility model embodiment provides a double-sided anti-fog PET protective film, including a base layer 1, strip grooves 2 symmetrically formed on the base layer 1, a stabilizing strip 3 provided on the inner side of the strip grooves 2, functional addition layers 4 provided on both sides of the base layer 1, placement grooves 5 formed on the functional addition layers 4, a connecting layer 6 is adhered to the side of one functional addition layer 4 away from the base layer 1, and a protective layer 8 is adhered to the side of the other functional addition layer 4 away from the base layer 1.

[0022] In this embodiment, the double-sided anti-fog PET protective film is commonly used in various applications, such as transparent covering films, eyeglass lenses, automotive glass, face masks, and display screen protective films, to ensure that the surface of the object does not fog due to changes in humidity or temperature, maintaining a clear field of vision. The strip groove 2 helps maintain the integrity of the film when it is torn off from the protected object. The stabilizing strip 3 filled inside the strip groove 2 enhances the tear resistance of the film. The functional additive layers 4 on both sides of the base layer 1 can add anti-fog agent inside the placement groove 5, so that the film can achieve a double-sided anti-fog effect during use, ensuring the light transmittance of the PET protective film. The connecting layer 6 enables the film to bond with the protected object during use. The protective layer 8 protects the entire outer side of the film after it is applied to the protected object, enhancing the durability of the film.

[0023] Please see Figures 1 to 3 The connecting layer 6 has evenly spaced through holes 7, which correspond to the placement groove 5;

[0024] In this embodiment, the adhesive on the connecting layer 6 is used to bond the film to the protected item, thereby achieving the function of protecting the item. The anti-fogging effect inside the placement groove 5 is made to come into direct contact with the item through the through hole 7, thereby greatly improving the anti-fogging effect of the film.

[0025] Please see Figures 1 to 3 The side of the stabilizing strip 3 furthest from the functional addition layer 4 is adhered to the strip groove 2;

[0026] In this embodiment, the stabilizing strip 3 is bonded to the base layer 1 in conjunction with the strip groove 2.

[0027] Please see Figures 1 to 3 The thickness of the stabilizing strip 3 is 0.5μm to 1μm, and the material is selected from at least one of polyimide, polyethylene and polypropylene; polyimide is a high-performance plastic with excellent tear resistance and is often used in high-temperature and high-performance applications; polyethylene added to PET protective film can improve its tear resistance; polypropylene can increase the strength and toughness of the film.

[0028] Please see Figures 1 to 3 The diameter of the placement groove 5 is 0.2μm to 0.8μm, and the inner side of the placement groove 5 is filled with an anti-fogging agent. The anti-fogging agent is one or more of the following: silicone filler, hydrophilic filler, and antistatic filler. Silicone filler is a commonly used anti-fogging filler. It can reduce the condensation of water vapor by adding tiny silicone particles to the PET protective film, thereby preventing the formation of fog. Hydrophilic filler is a hydrophilic polymer compound or surfactant that can increase the surface energy of the PET film, making it easier for water vapor to disperse and reducing the formation of fog. Antistatic filler can reduce the adsorption of water vapor caused by static electricity, thereby reducing the generation of fog.

[0029] Please see Figures 1 to 3 The protective layer 8 is an optical anti-fog coating, which reduces fogging by optimizing optical performance. These coatings are designed to reduce light scattering and reflection, thereby improving transparency.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-sided anti-fog PET protective film, characterized in that: It includes a base layer (1), on which symmetrical strip grooves (2) are provided, and a stabilizing strip (3) is provided on the inner side of the strip grooves (2). Functional addition layers (4) are provided on both sides of the base layer (1), and placement grooves (5) are provided on the functional addition layers (4). A connecting layer (6) is adhered to the side of one functional addition layer (4) away from the base layer (1), and a protective layer (8) is adhered to the side of the other functional addition layer (4) away from the base layer (1).

2. The double-sided anti-fog PET protective film according to claim 1, characterized in that: The connecting layer (6) is provided with uniformly distributed through holes (7), which correspond to the placement groove (5).

3. The double-sided anti-fog PET protective film according to claim 2, characterized in that: The side of the stabilizing strip (3) away from the functional addition layer (4) is adhered to the strip groove (2).

4. The double-sided anti-fog PET protective film according to claim 1, characterized in that: The thickness of the stabilizing strip (3) is 0.5 μm to 1 μm.

5. The double-sided anti-fog PET protective film according to claim 1, characterized in that: The diameter of the placement groove (5) is 0.2 μm to 0.8 μm.

6. The double-sided anti-fog PET protective film according to claim 4, characterized in that: The protective layer (8) is an optical anti-fog coating.

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