1) Cutting material---Plane printing---Ink drying and fixing---Plastic protective film---punching positioning hole---Hot forming---Cut peripheral shape---Material injection molding process flow as shown below: The details are as follows: 1) Cutting: The rolled film Film is cut into square pieces of designed size for printing and molding processes.
　　2) Flat printing: According to the required icons and characters, it is made into a film net, and icons and characters are printed on the cut film square block.

　　3) Drying and fixing of the ink: The printed film Film square is placed in a high temperature oven to be dried, in order to fix the IML ink.
　　4) Sticking protective film: avoiding the surface of the printed film Film during the punching process, sometimes it is necessary to apply a single layer or double layer protective film.
　　5) Punching the positioning hole: The thermoforming positioning hole must be punched. The positioning holes in the shearing process are sometimes punched in advance.
　　6) Thermoforming (high pressure or copper mold): After the printed film is heated, it is molded in a preheated state by a high pressure machine or a copper mold.
　　7) Cutting the peripheral shape: the scrap of the formed three-dimensional film is cut off.
　　8) Material injection: The film with the same shape as the front mold of the front mold is placed on the front mold to mold the finished product of the IML.