| 摘要 |
A thermoplastic bag structure (10) and method for making and packaging thermoplastic bags such that their tops are easily identified and the bags a re easily opened. The method for producing these bags begins with cutting a flattened thermoplastic tube into two portions (16, 18). At least one of the two portions is then collapsed to form a sheet of material having a pair of thermoplastic layers, a straight folded bottom edge (32) and a pair of top edges, at least one of which is skewed-cut (22). Bag side structures (30) ar e formed in the sheet of material at about bag-width distances apart. The bags are then folded a predetermined number of times, in a direction transverse t o the bag side structures, so that the skewed-cut top edge(s) (22) of each of the bags remains exposed. |
