Material-saving multi-typesetting double-asynchronous process

The invention provides a material-saving multi-typesetting double-asynchronous process, which enables PI materials to be fully utilized, reduces the cost of raw materials, and is more reasonable in overall process manufacturing. The method comprises the steps that S1, a PI belt punched on a PI material belt is compounded on a bottom release film through a first die cutter, feeding of PI materials is double asynchronous conveying, namely, first stepping conveying is 2a distance, second stepping conveying is a distance, then first stepping conveying and second stepping conveying are conducted in sequence, and the stepping conveying distance of the bottom release film is 2a; s2, compounding a blue PET protective film LINER on the upper surface compounded with the PI tape; s3, directly performing die cutting on the blue PET protective film LINER and PI tape through a second die cutter to form a product with four cavities in one die; s4, the surface of the punched and formed product is covered with a transparent p