Three-layer scratch-resistant PET (polyethylene terephthalate) protective film

Abstract

The invention discloses a three-layer scratch-resistant PET (polyethylene terephthalate) protective film. The protective film comprises a PET release film, a PET substrate and a PET protective film, wherein the hardening treatment surface of the PET substrate is fit with the PET protective film; the non-hardening treatment surface of the PET substrate is fit with the PET release film via a glue layer; the PET protective film comprises a PET protective film substrate, a PET protective film glue layer and a scratch-resistant coating, which are fit in sequence; and the scratch-resistant coating is fit with the hardening treatment surface of the PET substrate. The protective film has the beneficial effects that the protective film has the functions of automatic adsorption and automatic exhaust, can eliminate bubbles, has low viscosity, is easy to strip, can be repeatedly pasted without affecting the use effect, has durable and stable performances, has ultrahigh light transmittance and surface hardness and a good touch effect, can effectively protect screens and is not easy to bump, scratch and pollute.

Description

technical field [0001] The invention relates to the field of protective films for electronic products, in particular to a PET three-layer anti-scratch protective film. Background technique [0002] The screen protector is a kind of transparent medium. At present, PET is mainly used as the raw material. The ordinary screen protector only plays the role of preventing dust, and the slightly better one can play the role of preventing scratches. It is mainly used for various flat surfaces. Display panel, such as mobile phone display, electronic navigation display, computer display and screen protection of various touch screens. [0003] There are many kinds of protective film products, and the main evaluation indicators of their quality are light transmittance and wear resistance. The light transmittance of the general protective film on the market is below 80%, which seriously affects the display effect of the screen and indirectly reduces the brightness of the screen. Long-ter...

AI Technical Summary

Problems solved by technology

The light transmittance of the general protective film on the market is below 80%, which seriously affects the display effect of the screen and indirectly reduces the brightness of the screen. Long-term use will increase eye fatigue; while the PET substrate is hardened. A high temperature treatment is required. In the high temperature treatment, due to the uneven molecular structure on the surface of the substrate, it is easy to cause scattering and rainbow patterns. The higher the strength of the hardening treatment, the more difficult it is to control the rainbow patterns. The existence of rainbow patterns will affect the protective film. Light transmittance and visual effects, in order to control the rainbow pattern of the existing protective film, the surface hardness can only reach about 3.5H

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