Making use of the good adhesive property of polypropylene & polyethylene at melting status, the machine adheres and laminates paper or color-printed OPP & CPP film to woven bag under pressure, and through cut-off and sewing to make paper & plastic laminated or color-printed packaging woven bags. The laminating with melted polypropylene & polyethylene film on the woven bag make laminating woven bag. Laminating on the film and paper directly, or laminating color-printed OPP & BOPP film on the surface of them make the color-printed packaging bags of instant noodles, melon seeds and foods. The extruder with vertical gear reducer adopts automatic temperature-control system to adjust melting temperature, the screw and cylinder are made of 38CrMoAlA alloy steel and done treatment of nitrogenation. The double-die can realize single or double-face coating. Width of coating &laminating can be regulated, and stepless speed regulation is to control coating thickness and laminating speed. The photoelectric meter of edge correcting assures the accuracy of coating. Automatic edge cutting. Counting, edge-blowing, perforating, edge-folding, cutting-off and winding devices are applied
