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(Patent NO.97243664.2)