Four-layer structure screen protection film and manufacturing process thereof

Abstract

The invention provides a four-layer structure screen protection film and a manufacturing process thereof. The four-layer structure screen protection film comprises a bottom-layer release film, a single-face silica gel sectioning composite release film, a single-face silica gel hardened practical film and a top-layer protection film which are sequentially arranged from bottom to top; a plurality ofsectioning lines are arranged on the single-face silica gel sectioning composite release film in the length direction, and enable the single-face silica gel sectioning composite release film to be divided into a plurality of blocks; and a low-viscidity silica gel layer is fixedly arranged on the lower surface of the single-face silica gel sectioning composite release film, and the lower surface of the low-viscidity silica gel layer is attached to the upper surface of the bottom-layer release film. The four-layer structure screen protection film and the manufacturing process thereof have the technical effects that the four-layer structure screen protection film can move on a screen repeatedly in the film pasting adjusting process, the situation that before film pasting of a traditional film pasting process, a whole face of release film is uncovered directly, and then a large area of silica gel is exposed is avoided, and thus dust and cilia in air are prevented from being adsorbed.

Description

technical field [0001] The invention relates to the field of screen protection films, in particular to a four-layer structure screen protection film and a manufacturing process thereof. Background technique [0002] The screen protector is the most common screen protector on the market at present. In the protective film, the protective film made of PET is widely used. The characteristic of the protective film made of PET is that it has a relatively hard texture and is relatively scratch-resistant. Yellowing and oiling like PVC material, but the protective film of PET is usually adsorbed by silica gel. The price of PET protective film is much more expensive than that of PVC. When many foreign famous brand mobile phones leave the factory, they are randomly equipped with PET. Material protection stickers, the use of PET material protection stickers is more exquisite in workmanship and packaging. There are many manufacturers to customize the protection stickers for popular mobil...

AI Technical Summary

Problems solved by technology

[0003] The screen protectors on the market have two problems that are difficult to stick in the process of sticking the film. The first is that it is difficult to align accurately at one time and needs to be adjusted many times. During the process of adjusting the position, fingers are easy to hurt the glue surface

The second is that after removing the release film, a large area of ​​silica gel is exposed, which can easily absorb dust and cilia in the air. The above two points are the main reasons for the failure of the film.

[0004] To sum up, the existing screen protective film is difficult to align accurately at one time when pasting, and needs to be adjusted many times. During the adjustment process, the alignment is repeatedly uncovered. Silicone is exposed, it is easy to absorb dust and cilia in the air

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