A kind of weak extinction plastic film, surface protection film and application thereof

Abstract

The invention provides a weak extinction plastic film, a surface protection film and its application. A specific structure design is applied, and the most basic structure is that the weak extinction plastic film comprises a base material layer, an adhesion enhancing layer and an extinction coating, wherein the extinction coating comprises a base resin and an extinction inorganic grain; the ratio of the extinction inorganic grain and the base resin is 1: 100-150; the dullness of the plastic film is 18-23%; the base material layer comprises polyethylene, polypropylene, polybutylene or its mixture; the base material layer must contain 1-20 wt% of ethylene- octylene copolymer; the adhesion enhancing layer includes polymer, coupling agent and tackifying resin which are the same as the base material layer; the base resin is the mixture of polyolefin resin and polyester resin; the extinction inorganic grain is nanometer titanium dioxide grain or nanometer silicon dioxide grain. Through composition and structure selection, the weak extinction plastic film with excellent extinction effect is acquired, and further applied to the surface protection film and the screen surface protection.

Description

Technical field [0001] The invention relates to the field of weak matting plastic films, specifically to a weak matting plastic film with matting effect, and also relates to surface protection films and their application in screen protection in automobiles. Background technique [0002] Plastic film is a polymer material widely used in the existing technology, and is widely used in industry, agriculture and daily life. In actual use, it was found that it has strong reflectivity and is highly reflective when exposed to strong light. Looking at it for a long time will cause eye discomfort, and matting it has become an urgent problem to be solved in the existing technology. However, It is necessary to select the appropriate composition and matting agent to ensure the comprehensive performance of weak matting plastic films. Surface protection film is a film material composed of plastic film and adhesive, which can have surface protection, matting and light transmission properti...

AI Technical Summary

Problems solved by technology

However, with the increase of the screen size of the center console and the improvement of the vehicle grade, there are also certain disadvantages, that is, when driving at night, the screen brightness is too large, which will stimulate the driver's eyes to a certain extent, so you can choose a surface protection Film, to reduce the brightness to a certain extent, but not excessively reduce the brightness of the screen during the day

The prior art is not clearly aware of this problem, and there is no weak extinction plastic film and surface protection film that can balance the above-mentioned many properties