| 摘要 |
The invention relates to a method, a device and a profiled resistor mounting strip for producing, on a tape (1) composed of at least two superimposed layers (101, 201) of heat-sealable plastic intended in particular to form packaging for products placed between the two layers (101, 201), at least two transverse sealing lines (S) a certain distance apart and at least one transverse cutting line (T) between the two sealing lines (S). The invention is characterized in that the sealing lines (S) and the cutting line (T) are made simultaneously or almost simultaneously, by exerting pressure and/or applying heat by means of corresponding electrical heating resistors in the form of thin rods (6, 7, 8) that are compressed together with the tape (1) between two jaws and are preferably incorporated in a profiled resistor mounting strip (5) of electrically insulating material and of which that rod (7) which forms the resistor on the cutting line (T) generates more heat and/or exerts a greater specific pressure than each of the rods (6, 8) that form the resistors on the sealing lines (S). <IMAGE> |
