Novel explosion-proof film

Abstract

The invention discloses a novel explosion-proof film. The explosion-proof film is composed of a release film, an OCA pressure-sensitive adhesive layer, a PET optical hardening film and a PP protectivefilm in sequence. The film is prepared by the following steps: firstly adding 0.2%-1% of an L-75 curing agent in the OCA pressure-sensitive adhesive, performing uniform stirring, coating the PET optical hardening film with the OCA pressure-sensitive adhesive, performing baking in a baking oven at 100 DEG C for 3-5 min, covering the surface of the OCA pressure-sensitive adhesive layer with the release film, covering the non-corona surface of the PET optical hardening film with the PP protective film, and finally performing cutting according to corresponding parameters by using an explosion-proof film cutting device. The explosion-proof film has a simple structure, high quality, large peeling force and a high-strength explosion-proof function, and is not easy to break; orange peel patternsdo not appear to affect the visual effect after bonding and defoaming; and the explosion-proof film cutting device disclosed by the invention can realize the fast and efficient cutting of the entire-block explosion-proof film, the cut explosion-proof film has no burrs on the edges, and the quality of the final product is high.

Description

technical field [0001] The invention relates to the technical field of explosion-proof membranes, in particular to a preparation method of a novel explosion-proof membrane and related cutting equipment. Background technique [0002] Mobile phones, computers and other electronic products have gradually become the necessities of modern life. The screens of these products are mostly capacitive touch screens or glass screens. For safety, an explosion-proof film is generally attached to the display glass. After the screen of an electronic product with an explosion-proof film is broken under the impact of an external force, the screen fragments will be bonded together to form a whole, effectively preventing it from being scattered and splashed. cause unnecessary harm. [0003] The production requirements of the explosion-proof film mainly include: the surface of the film is flat, thick and smooth, the light transmittance must reach 90%, and the clarity of the screen is guaranteed...

AI Technical Summary

Problems solved by technology

[0006] In addition, when the existing explosion-proof membrane is produced, it is usually processed in the form of a whole piece, and then cut according to the parameters of the specific product. The cutting efficiency of the cutting device in the prior art is low, and the explosion-proof membrane is easy to cut when cutting. Displacement, burrs often appear on the cutting edge, affecting the quality of the final product

Images