| 摘要 |
The device has two metal supporting bodies (41,61), which can be moved in relation to each other. Arranged on one body (41) are two parallel band heaters (42,43) and at the same spacing from each other on the other body (61) are a band heater (57) and a flexible material strip (58). Consequently, two thermoplastic webs (2,3) can be sealed to a releasable closing strip (4) and provided with a peelable sealing seam (5) simultaneously in a single step. <IMAGE> |
