| 摘要 |
The invention relates to a method for manufacturing packs (1) characterised in that it comprises steps according to which: ```- a packaging film is unwound; ```- a first gusset (3) is formed on the unwinding ```packaging film; ```- a second gusset (8) is formed on the unwinding packaging film, the second gusset being formed on the same edge of the unwinding film as the first gusset (3), said second gusset being associated with a closure assembly (4) to form an opening indicator. The opening indicator comprises a line of weakness (15) in the second gusset which is broken when the pack is first opened. The first and second gusset may differ in depth. The closure assembly (4) may be a strip fastener with a slider (6). A handle may be attached to the pack in the region of the first gusset. |
