IMR (In-Mould Decoration by Roller) in-mold decoration technology is to print decorative patterns and functionalpatterns on the film by a high-precision printer, and send the foil into a special molding mold through a high-precision foil feeding device. After precise positioning, the pattern on the foil film is transferred to the surface of the plastic product through the high temperature and high pressure of the plastic raw material. The IMR foil substrate is the carrier of the pattern during the production process, and the product surface has no substrate.