Novel optical high-transmittance PET film

Abstract

The utility model discloses a novel optical high-transmittance PET (Polyethylene Terephthalate) film which comprises a film layer, a front protective film and a rear protective film, according to the utility model, the right hand penetrates through the gap between the drawstring and the front protective surface to hook the drawstring, and the left hand holds the lug at the left upper corner of the rear protective film to tear the lug towards the rear part of the film layer, so that the rear protective film can be easily torn off; at the moment, the two groups of drawstrings on the front wall of the front protective film can serve as handles to facilitate holding of the film layer and subsequent pasting action, after pasting is completed, due to the fact that the anti-sticking layer is arranged on the edge of the front sealing edge, the position cannot be adhered to the surface of equipment, and the front protective film can be easily taken down from the film layer from the non-sticking position. The pasting is completed, the tearing action of the protective film is very easy, the thin edge of the film layer is adsorbed together through the front sealing edge and the rear sealing edge for protection, the process of pasting the side edge protective film does not need to be additionally arranged, and the production difficulty is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PET optical films, in particular to a novel optically high-transmittance PET film. Background Art

[0002] PET optical film is one of the indispensable parts in the work of electronic film pasting. The staff use PET optical film to protect the screen of electronic products. For example, a graphene double-sided PET optical film proposed in a public document "comprises a base layer, a first anti-folding layer and a second anti-folding layer are respectively provided on both sides of the base layer, a first eye protection layer is provided on the side of the first anti-folding layer away from the base layer, and a first light-transmitting layer is provided on the side of the first eye protection layer away from the first anti-folding layer". The technology proposed in the public document effectively enhances the wear resistance and light transmittance of the optical film through the setting of a multi-layer structure, thereby improving the use effect of the optical film. However, the above-mentioned PET optical film usually has a protective film and a film body that fits tightly together, which makes it inconvenient for the staff to tear off the protective film before pasting. For this reason, there is an improved technology on the market that proposes a double-sided hardened PET optical film, including a film body, a top protective film is installed on the top of the film body, and a bottom protective film is installed on the bottom of the film body. The utility model is installed with a top sheet, and the staff pulls the top sheet to make the top sheet bend under external force. The top film strip is driven to move under the action of the external force, so that the top film strip drives the top protective film to move under the action of the external force, so that the staff can tear off the top protective film, the staff pulls the bottom film, so that the bottom film drives the bottom protective film to move through the bottom film strip under the action of the external force, so that the staff can tear off the bottom protective film, the staff pulls the side film, so that the side film drives the side strip to move under the action of the external force, so that the staff can tear off the side strip, the staff pulls the main film, so that the main film drives the main strip to move under the action of the external force, so that the staff can tear off the main strip;

[0003] However, there are still certain drawbacks in the use of the above-mentioned improved technology. It proposes to set side strips at the thinner edges of the film. In fact, the film is very thin, and the process of setting side strips alone is very difficult to achieve, and there are other easier to achieve solutions for side protection. The setting of the side strips is a typical example of using a complex technical structure to solve a simple problem. According to its working principle, when the bottom protective film or the top protective film is removed, the difficulty of tearing is reduced by setting the bottom film and the top film. However, after one side is torn off, it is not convenient to hold the film with one side of the protective film removed. Therefore, further improvements are necessary. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a new type of optical high-transmittance PET film.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new type of optically high-transmittance PET film, comprising a film layer, a front protective film and a rear protective film, the front protective film and the rear protective film are respectively arranged on the front and rear sides of the film layer, the film layer is composed of a wear-resistant layer, a substrate layer and an adhesive layer distributed in sequence from front to back, the front protective film is composed of a front protective surface in contact with the film layer and a front edge seal located at the edge of the front protective surface, the rear protective film is composed of a rear protective surface in contact with the film layer and a rear edge seal located at the edge of the rear protective surface, the front wall of the front protective film is provided with a handle structure for conveniently holding the film layer after the rear protective film is torn off, and the rear protective film is provided with an easy-tear structure for conveniently separating the rear protective film from the film layer.

[0006] As a further description of the above technical solution:

[0007] The substrate layer is a high light-transmittance PET film.

[0008] As a further description of the above technical solution:

[0009] Anti-sticking layers are provided on the opposite side of the front edge seal and the rear edge seal and at positions away from the front protective surface and the rear protective surface. The two anti-sticking layers are not bonded to each other, and the other positions between the opposite side of the front edge seal and the rear edge seal except the anti-sticking layers are adsorbed and bonded to each other.

[0010] As a further description of the above technical solution:

[0011] The tear-away structure includes two groups of lugs, which are respectively arranged at the upper left corner and the lower right corner of the rear protective film, and the two groups of lugs are an integral structure with the rear protective film.

[0012] As a further description of the above technical solution:

[0013] The handle structure includes two groups of drawstrings, which are distributed on the left and right sides and are fixedly connected to the front wall of the front protective surface in sequence. The two groups of drawstrings are connected to the front wall of the front protective surface near the upper end and near the lower end on one side facing the front protective surface.

[0014] As a further description of the above technical solution:

[0015] The wear-resistant layer is a highly transparent nano silicon dioxide coating.

[0016] As a further description of the above technical solution:

[0017] A mark for identifying the use direction is arranged at the center of a side of the rear protective film away from the front protective film.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, the new optically high-transmittance PET film can be easily peeled off by hooking the drawstring through the gap between the drawstring and the front protective surface with the right hand, holding the lug at the upper left corner of the rear protective film with the left hand, and tearing the lug toward the rear of the film layer. At this time, the two sets of drawstrings on the front wall of the front protective film can be used as handles to facilitate the holding of the film layer and the subsequent posting action. After posting is completed, since an anti-sticking layer is provided at the edge of the front sealing edge, this position will not adhere to the surface of the equipment, and the front protective film can be easily taken off the film layer from the non-sticky position to complete the posting. The protective film is very easy to tear off.

[0020] 2. Compared with the existing technology, the new optically high-transmittance PET film has thin edges that are protected by adsorbing the front and rear edge seals together. There is no need to set up an additional process for pasting side protective films, which greatly reduces the difficulty of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a new type of optically high-transmittance PET film proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of a new type of optically high-transmittance PET film proposed by the utility model;

[0023] Figure 3 This is a partial cross-sectional view of the overall structure of a new type of optically high-transmittance PET film proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the partial structure of the front edge sealing and anti-sticking layer of a new type of optically high-transmittance PET film proposed by the utility model.

[0025] Legend:

[0026] 1. Film layer; 2. Front protective film; 3. Rear protective film; 4. Pull tape; 5. Lug; 6. Mark; 7. Anti-sticking layer; 101. Wear-resistant layer; 102. Base material layer; 103. Adhesive layer; 201. Front protective surface; 202. Front edge sealing; 301. Rear protective surface; 302. Rear edge sealing. DETAILED DESCRIPTION

[0027] 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.

[0028] Reference Figures 1 to 4The utility model provides a novel optical high-transmittance PET film: comprising a film layer 1, a front protective film 2 and a rear protective film 3, wherein the front protective film 2 and the rear protective film 3 are respectively arranged on the front and rear sides of the film layer 1, and the film layer 1 is composed of a wear-resistant layer 101, a substrate layer 102 and an adhesive layer 103 which are sequentially distributed from front to back, the substrate layer 102 is a high-transmittance PET film, the wear-resistant layer 101 is a highly transparent nano-silicon dioxide coating, and the adhesive layer 103 is a common material with adhesive properties on the market, which is used to be attached to the protected surface to maintain the position of the film layer 1, and the substrate layer 102 made of the high-transmittance PET film has good light transmission effect, high degree of color restoration on the screen, and good visual effect, and the highly transparent nano-silicon dioxide coating is wear-resistant and scratch-resistant, and has a good effect of protecting the surface of the substrate layer 102;

[0029] like Figure 2 As shown, the front protective film 2 is composed of a front protective surface 201 in contact with the film layer 1 and a front sealing edge 202 located at the edge of the front protective surface 201, and the rear protective film 3 is composed of a rear protective surface 301 in contact with the film layer 1 and a rear sealing edge 302 located at the edge of the rear protective surface 301. The front sealing edge 202 and the rear sealing edge 302 are opposite to each other and are located away from the front protective surface 201 and the rear protective surface 301. The anti-adhesive layer 7 is not bonded to each other, and the front sealing edge 202 and the rear sealing edge 302 are opposite to each other. The rest of the positions except the anti-adhesive layer 7 on one side are mutually adsorbed and bonded. In order to facilitate the removal of the front protective film 2 and the rear protective film 3, the anti-adhesive layer 7 is arranged at the edge of the front protective film 2 and the rear protective film 3, which can be torn off relatively easily. The front sealing edge 202 and the rear sealing edge 302 of the front protective film 2 and the rear protective film 3 are all bonded together within the range of the non-anti-adhesive layer 7, which can protect the side edge of the film layer 1. There is no need to re-paste the side protective film as in the prior art. The production process is simple and easier to implement.

[0030] like Figure 1 As shown, in order to conveniently hold the film layer 1, the front wall of the front protective film 2 is provided with a handle structure for conveniently holding the film layer 1 after the rear protective film 3 is torn off. The handle structure includes two groups of drawstrings 4, which are distributed on the left and right and fixedly connected to the front wall of the front protective surface 201 in sequence. The two groups of drawstrings 4 are connected to the front wall of the front protective surface 201 near the upper end and near the lower end on one side of the front protective surface 201. The drawstrings 4 can be used as handles by passing fingers through the gap between the drawstrings 4 and the front protective film 2. At this time, whether it is tearing off the rear protective film 3 or pasting the film layer 1 to the surface of the protected device after tearing off the rear protective film 3, it is very convenient and the use effect is very good.

[0031] like Figure 1 , Figure 2As shown, the rear protective film 3 is provided with an easy-tear structure for conveniently separating the rear protective film 3 from the film layer 1. The easy-tear structure includes two groups of lugs 5, which are respectively arranged at the upper left corner and the lower right corner of the rear protective film 3. The two groups of lugs 5 are an integral structure with the rear protective film 3. Through the two groups of lugs 5, the rear protective film 3 can be easily separated from the film layer 1 without the need to bother to find the joint, thereby improving the convenience of taking out the rear protective film 3.

[0032] like Figure 2 As shown, in order to facilitate accurate identification of the direction of use after receiving it, a mark 6 for identifying the direction of use is provided on one side of the rear protective film 3 away from the front protective film 2 and in the center of the side. The mark 6 can be text or other indicating patterns. In this embodiment, the mark 6 is described as text. After the film layer 1 is received, it can be easily determined by the text mark 6 that the side is used for pasting to the protected surface, which is not easy to make a mistake and has a good error-proofing effect.

[0033] Working principle: After the film layer 1 is obtained, the text mark 6 can be used to easily determine that the surface is used to be pasted to the protected surface, which is not easy to make a mistake and has a good error prevention effect. In order to facilitate the removal of the front protective film 2 and the rear protective film 3, an anti-sticking layer 7 is set at the edge of the front protective film 2 and the rear protective film 3, which can be easily torn off. The front sealing edge 202 and the rear sealing edge 302 of the front protective film 2 and the rear protective film 3 are bonded together within the range of the non-anti-sticking layer 7, which can protect the side edge of the film layer 1, and no need Just like re-pasting the side protective film as in the prior art, the production process is simple and easier to implement. After identifying the direction, the finger can be passed through the gap between the pull tape 4 and the front protective film 2 to use the pull tape 4 as a handle. At this time, whether it is tearing off the rear protective film 3 or tearing off the rear protective film 3 and then pasting the film layer 1 to the surface of the protected device is very convenient, and the use effect is very good. Through the two sets of lugs 5, the rear protective film 3 can be easily separated from the film layer 1, and there is no need to bother to find the joint, which improves the convenience of removing the rear protective film 3.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of optically high-transmittance PET film, characterized by: The invention comprises a film layer (1), a front protective film (2) and a rear protective film (3), wherein the front protective film (2) and the rear protective film (3) are respectively arranged on the front and rear sides of the film layer (1), wherein the film layer (1) is composed of a wear-resistant layer (101), a base material layer (102) and an adhesive layer (103) which are sequentially arranged from front to back, wherein the front protective film (2) is composed of a front protective surface (201) in contact with the film layer (1) and a front sealing edge (202) located at the edge of the front protective surface (201), wherein the rear protective film (3) is composed of a rear protective surface (301) in contact with the film layer (1) and a rear sealing edge (302) located at the edge of the rear protective surface (301), wherein the front wall of the front protective film (2) is provided with a handle structure for conveniently holding the film layer (1) after the rear protective film (3) is torn off, and wherein the rear protective film (3) is provided with an easy-tear structure for conveniently separating the rear protective film (3) from the film layer (1).

2. The novel optically high-transmittance PET film according to claim 1, characterized in that: The substrate layer (102) is a high light-transmittance PET film.

3. The novel optically high-transmittance PET film according to claim 2, characterized in that: An anti-sticking layer (7) is provided on one side of the front edge seal (202) and the rear edge seal (302) that is opposite to each other and is located away from the front protective surface (201) and the rear protective surface (301); the anti-sticking layers (7) at two locations are not bonded to each other, and the remaining locations between the opposite sides of the front edge seal (202) and the rear edge seal (302) except for the anti-sticking layer (7) are mutually adsorbed and bonded.

4. The novel optically high-transmittance PET film according to claim 3, characterized in that: The tear-away structure comprises two groups of lugs (5), the two groups of lugs (5) are respectively arranged at the upper left corner and the lower right corner of the rear protective film (3), and the two groups of lugs (5) are an integral structure with the rear protective film (3).

5. The novel optically high-transmittance PET film according to claim 4, characterized in that: The handle structure comprises two groups of drawstrings (4), the two groups of drawstrings (4) being distributed on the left and right and fixedly connected in sequence to the front wall of the front protective surface (201), and the two groups of drawstrings (4) being connected to the front wall of the front protective surface (201) at two locations near the upper end and near the lower end on one side of the front protective surface (201).

6. The novel optically high-transmittance PET film according to claim 5, characterized in that: The wear-resistant layer (101) is a highly transparent nano-silicon dioxide coating.

7. The novel optically high-transmittance PET film according to claim 6, characterized in that: A mark (6) for identifying the direction of use is provided on a side of the rear protective film (3) away from the front protective film (2) and in the center of the side.

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