主权项 |
1. A tubular bag apparatus comprising a tubular bag (2) consisting of multilayer plastic film, a plastic closure device (1) comprising a bottom part (10) having a spout (14) and a flange (18), and an energy introduction arrangement (182), which is connected to a plastic layer of the tubular bag (2), being located on a flange underside (180) of said flange, wherein the energy introduction arrangement (182) has at least one energy-conducting rib (183) which extends concentrically with respect to a peripheral flange rim, characterized in that the at least one concentric energy-conducting rib (183) intersects a multiplicity of energy-conducting ribs (184) which extend and are oriented outwardly and which extend as far as the peripheral flange rim (181). |