Method for preparing automatic-adsorption, ultrathin, anti-peeping and anti-scratching protective film

Abstract

The invention discloses a method for preparing an automatic-adsorption, ultrathin, anti-peeping and anti-scratching protective film. The method includes: coating an anti-scratching layer on a first PET (polyethylene terephthalate) transparent film by means of scraper coating, coating diamond cobwebbing on the back face of the first PET transparent film through an intaglio roller, curing the diamond cobwebbing under ultraviolet irradiation of a UV (ultraviolet) lamp, coating an anti-peeping layer on the cured diamond cobwebbing by means of scraper coating, using acrylic glue to bond the anti-peeping layer with a second PET transparent film, and finally coating silica gel on the other side of the second PET transparent film by means of scraper coating. The diamond cobwebbing structure has an interval of the top and the bottom of 5-15mu m, a side edge gradient of 40-50 degrees and the interval of the top of 40-80mu m. The main materials of the diamond cobwebbing are transparent ultraviolet radioactive ray curing agent such as polyurethane matched with macromolecule materials with colour particles capable of sbsorbing light.

Description

technical field [0001] The invention relates to a method for preparing a protective film for display screens of mobile phones, notebook computers and automatic teller machines, in particular to a method for preparing a protective film for automatic adsorption, ultra-thin anti-peeping and anti-scratch. Background technique [0002] Currently on the market, the display protective films of mobile phones, notebook computers, and ATMs are all made of a two-layer structure on the transparent film with ultraviolet radiation curing agent, light-transmitting resin glue, and silica gel, and then the tape is pasted on the two-layer structure. A protective film with anti-scratch function to form a composite screen protection film. Although this type of protective film can protect the display screen to a certain extent, because the composite layer is too thick, the protective film itself is easily scratched, resulting in premature damage to the protective film; this type of protective fi...

AI Technical Summary

Problems solved by technology

Although this type of protective film can protect the display screen to a certain extent, because the composite layer is too thick, the protective film itself is easily scratched, resulting in premature damage to the protective film; this type of protective film only has a single display protection Function, within a certain range of viewing angles, it cannot protect the content displayed on the display screen from peeping. That is to say, the viewing angle of the protective film is relatively large. The content displayed on the display screen can be clearly seen within the line of sight of the user, which brings a lot of inconvenience to those workers who use the video screen to work in public places and their work content is afraid of being peeped by others.

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