| 摘要 |
<p>PURPOSE:To provide a method for sequentially manufacturing and regularly stacking bags each having smoothly bent fused edge and cut at other end straightly by a cross-cutting method from a bag material band made of a flat tube. CONSTITUTION:Bags each having a smoothly bent part are manufactured by the steps of intermittently conveying a bag material band made of a flat tube, fusing the band by a heat sealer 25 having a smooth heat sealing part in a plane at a station of an upstream side in a cross-cutting direction at each time of stopping, conveying a separate bag B0 having smooth fusing welded parts 91 at separate upstream and downstream ends, cutting the one part 91, regularly stacking sequentially completed bags B1.</p> |
