Working principle: extruded hot melt-like film, directly coated in paper, fabric and plastic film and other continuous transmission of sheet, film materials, and by cooling, pressurized composite, made of composite film, which molding process for extrusion composite film method. The polymer material is added to the hopper, driven by the motor, the single-screw extruder plasticizes and melts it, and then flows to the cast roller through the T-type cast die, at the same time, the base material on the unwinding roller is driven by the motor, and the extruded film of the cast roller overlaps with each other, and the two layers of material are compounded together by the roller, and then the composite material is cut, flattened and wound up.
