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。