Integrally moulded PET base material protective back film containing impression

Abstract

The invention relates to an integrally moulded PET base material protective back film containing impression. The back film comprises a back film body, double surfaces of the back film are smooth horizontal surfaces, and the front surface of the film body is used for bonding a protective film whose shape is identical to the shape of the back film body; the upper part of the back film body is provided with a handle part, and the handle part and the back film body are integrally moulded; the impression line is provided at a boundary of the handle part and the back film body, the handle part is bent to the back surface of the back film body along the impression line, so that the handle part is bent and clings to the back surface of the back film body. Compared with prior art, the impression line is arranged between the handle part and the back film body, so that on one hand the handle part can be conveniently folded, the problem of curved folding line does not appear, the qualified ratio of the product is improved, on the other hand the impression line is provided, the handle part can be bent easily, and production power is increased.

Description

technical field [0001] The invention relates to a protective film, in particular to an integrally formed PET base material protective back film containing indentations. Background technique [0002] With the development of electronic products, more and more protective films are pasted on the screens of mobile phones, tablet computers or laptop computers. When attaching films to electronic products such as mobile phones, tablet computers or laptops, the cleanliness of the film is required to be very high. Therefore, the protective film is pasted on a smooth back film when it leaves the factory. Peel off the film and stick to the electronics. [0003] Since both the protective film and the back film are die-cut by die-cutting tools according to the shape specifications of electronic products, generally the size of the protective film and the back film is the same, the adhesion between the protective film and the back film is very good, and the back film is very Smooth, there...

AI Technical Summary

Problems solved by technology

[0003] Since both the protective film and the back film are die-cut by die-cutting tools according to the shape specifications of electronic products, generally the size of the protective film and the back film is the same, the adhesion between the protective film and the back film is very good, and the back film is very Smooth, therefore, it is difficult to peel off the back film and the protective film, and it is easy to bend or damage the protective film and the back film during use, which will affect the performance of the protective film

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