| 摘要 |
A plastic medium feed-through part, for example a spout, designed to be sealed by means of a sealing technique between film walls of a bag, comprising a plastic body which forms a channel (4) for dispensing a medium from the bag and/or feeding it to the bag, which body has sealing sides (10, 11) situated opposite each other, each for achieving a sealed connection to an adjoining film wall, which sealing sides are substantially flat and free from ribs. Each sealing side has a rough surface structure. The surface roughness value of the sealing sides preferably lies between 20 and 40 in accordance with VDI Richtlinie 3400. The feed-through part can be provided with an anti-nesting projection (20) on the side intended to be inside the bag or with an element (101) for holding the bag open. Several methods for sealing a feed-through part to a bag are also provided. |
