CN205836124U - A fully laminated tempered glass protective film - Google Patents

Abstract

The utility model discloses a toughened glass protection film of full laminating, its processing nature is strong, easily volume production. The utility model discloses a toughened glass protection film includes the four layers from bottom to top: the AB glue pressure sensitive adhesive layer, the first PET base material, the AB glue high-viscosity layer, the second PET base material and the toughened glass; the second PET substrate and the toughened glass are in the same layer, the second PET substrate is in a frame shape, and the toughened glass is arranged in the second PET substrate hollow frame. The utility model discloses can all-round protection cambered surface screen, realize the perfect laminating on the curved surface screen, avoid the screen to scrape the flower.

Description

A fully laminated tempered glass protective film

technical field

The utility model belongs to the field of protective film manufacture, and specifically relates to a full-fit tempered glass protective film.

Background technique

With the development of tempered glass mobile phone protective films, more and more traditional protective films are replaced by tempered glass protective films. However, when the existing tempered glass protective film is applied to a curved screen, it cannot be completely fitted, because the tempered glass is difficult to process and is not easy to bend.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and provide a fully bonded tempered glass protective film and its preparation method, which not only solves the technical problem that the existing tempered glass protective film cannot perfectly fit the curved screen , and strong processability, low cost, easy mass production.

In order to achieve the above object, the utility model adopts the following scheme:

A full-fit tempered glass protective film, the tempered glass protective film consists of four layers from bottom to top: AB adhesive pressure-sensitive adhesive layer, the first PET substrate, AB adhesive high-viscosity layer and the second PET substrate and tempered glass ; The second PET base material and the toughened glass are in the same layer, the second PET base material is frame-shaped, and tempered glass is arranged in the second PET base material empty frame.

In some embodiments, the first PET substrate is coated with an AB adhesive layer, and the AB adhesive layer is provided with a second PET substrate and tempered glass; the thickness of the AB adhesive layer is 20 μm to 60 μm.

In some embodiments, a silicone pressure-sensitive adhesive layer and a protective film layer are introduced on the tempered glass, and a silicone pressure-sensitive adhesive layer is coated under the protective film layer, and then the silicone pressure-sensitive adhesive layer is pasted on the second On PET substrate and tempered glass;

The finished product has a protective film layer and a peeling layer on the upper and lower sides. The protective film layer is a PET layer with a thickness of 38-100 μm, and a silicone pressure-sensitive adhesive layer 33 of 5-20 μm is provided under the protective film layer (between the toughened glass); AB glue pressure-sensitive adhesive A peeling layer is arranged under the layer, and the peeling layer is a PET film or a release film with a thickness of 23-100 μm.

In some embodiments, the thickness of the second PET substrate is 200-400 μm; tempered glass is provided in the hollow frame of the middle part of the second PET substrate, and the thickness of the tempered glass is 200-400 μm.

In some embodiments, the first PET substrate is coated with an AB glue pressure-sensitive adhesive layer, and the thickness of the AB glue pressure-sensitive adhesive layer is 20-70 μm.

In some embodiments, the thickness of the first PET substrate is 50-100 μm.

In some embodiments, the AB adhesive pressure-sensitive adhesive layer is one of acrylic layer, silicone layer or polyurethane layer.

The utility model has the advantages that: compared with the bending of toughened glass, the utility model is easy to process; the cost is low; and the curved screen can be protected in all directions. The utility model utilizes the thermal bending of the second PET base material and the perfect combination of tempered glass to realize the perfect fit on the curved screen, protect the screen in all directions, and avoid scratches on the screen.

Description of drawings

Fig. 1 is the structural representation when the utility model uses;

Fig. 2 is the schematic top view of the utility model embodiment;

Fig. 3 is a sectional view of the finished product of the utility model.

Explanation of reference signs:

AB glue pressure-sensitive adhesive layer 12, first PET substrate 14, AB glue high-viscosity layer 16, second PET substrate 22, tempered glass 24, peeling layer 31, silicone pressure-sensitive adhesive layer 33, protective film layer 35.

detailed description

In order to further understand the features, technical means, and specific objectives and functions of the utility model, and to analyze the advantages and spirit of the utility model, the utility model is further described through the following examples.

The utility model is realized by the following methods:

A. Use the second PET base material 22 with a thickness of 200-400 μm, adopt hot pressing to form a radian, and then cut off the middle part;

B. The middle part is made of toughened glass 24. The thickness of the tempered glass 24 is consistent with that of the second PET substrate 22, and adjusted to a thickness of 200-400 μm;

C, with AB glue (AB glue high-viscosity layer 16) the two substrates are pasted together, and the tempered glass 24 is pasted on the second PET substrate 22 with the high-viscosity surface;

D. The silicone surface (AB glue pressure-sensitive adhesive layer 12) can be attached to the tempered glass of the protected product and used as a protective film.

Further, in one embodiment, the second PET substrate 22 with a thickness of 200-400 μm is used, and the edge is formed into a radian by hot pressing, and then the middle part is cut off;

The middle part of the second PET substrate 22 is made of tempered glass 24, the thickness of the tempered glass 24 is consistent with that of the second PET substrate 22, adjusted to a thickness of 200-400 μm;

Use the AB glue high-adhesive layer 16 to bond the two substrates together, and use the high-adhesive surface to bond the tempered glass 24 together;

The tempered glass 24 is provided with a silicone pressure-sensitive adhesive layer 33 and a protective film layer 35, and the silicone pressure-sensitive adhesive layer 33 is coated under the protective film layer 35, and then the silicone pressure-sensitive adhesive layer 33 is attached to the second PET On the substrate 22 and the tempered glass 24;

The finished product has a protective film layer 35 and a peeling layer 31 on the upper and lower sides. The protective film layer 35 is a layer of PET (38-100 μm), and a silicone pressure-sensitive adhesive of 5-20 μm is provided under the protective film layer 35 (between the tempered glass 24 ) Layer 33; the peeling layer 31 is a PET film or a release film with a thickness of 23-100 μm;

When the finished product is sold, the protective film layer 35 plays the role of protecting the tempered glass 24, and the peeling layer 31 plays the role of protecting the AB adhesive pressure-sensitive adhesive layer 12, which will be torn off during use;

The release layer 31 is torn off during use, and the adhesive surface of the AB glue pressure-sensitive adhesive layer 12 can be pasted on the protected product, and then the protective film layer 35 is torn off to be used as a protective film.

The above-mentioned embodiments only represent some implementations of the present utility model, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present utility model should be based on the appended claims.

Claims (6)

1. A full-fit tempered glass protective film, characterized in that, said tempered glass protective film comprises four layers from bottom to top: AB glue pressure-sensitive adhesive layer (12), the first PET substrate (14), AB glue high viscosity layer (16) and the second PET substrate (22) and tempered glass (24); The second PET base material (22) and the toughened glass (24) are in the same layer, the second PET base material (22) is frame-shaped, and a tempered glass is provided in the empty frame of the second PET base material (22). glass (24). 2. a kind of tempered glass protective film that fits completely according to claim 1, it is characterized in that, above described first PET substrate (14), be coated with AB glue high viscosity layer (16), described AB glue The high-viscosity layer (16) is provided with a second PET substrate (22) and tempered glass (24); the AB glue high-viscosity layer (16) has a thickness of 20 μm to 60 μm. 3. A kind of full-fit tempered glass protective film according to claim 1, characterized in that, an organic silicon pressure-sensitive adhesive layer (33) and a protective film layer (35) are introduced above the tempered glass (24); A silicone pressure-sensitive adhesive layer (33) is coated below the protective film layer (35), and the silicone pressure-sensitive adhesive layer (33) is pasted on the second PET substrate (22) and tempered glass (24) ; The protective film layer (35) is a PET layer with a thickness of 38-100 μm, and the silicone pressure-sensitive adhesive layer (33) has a thickness of 5-20 μm; A peeling layer (31) is provided under the AB adhesive pressure-sensitive adhesive layer (12); the peeling layer (31) is a PET film or a release film with a thickness of 23-100 μm. 4. A fully laminated tempered glass protective film according to claim 1, characterized in that, the second PET substrate (22) has a thickness of 200-400 μm; the second PET substrate (22) Toughened glass (24) is arranged in the hollow frame of the middle part, and the thickness of the toughened glass (24) is 200-400 μm. 5. A kind of full-fit tempered glass protective film according to claim 1, characterized in that, the AB glue pressure-sensitive adhesive layer (12) is coated below the first PET substrate (14), and the AB glue The adhesive pressure-sensitive adhesive layer (12) has a thickness of 20-70 μm. 6 . The fully laminated tempered glass protective film according to claim 4 , characterized in that, the thickness of the first PET substrate ( 14 ) is 50-100 μm.