| 摘要 |
Method of opening non-hermetic packs (1), in particular non- hermetic cigarette packs, and a method of opening hermetic packs by pressure in which at least one pack is located in a pressure chamber, the pressure inside the said chamber 2) and inside the said pack being subsequently increased beyond the ambient pressure, after which the chamber is abruptly decompressed so that the pack is disrupted as a result of a momentary difference between the pressure inside the chamber surrounding the pack and the pressure inside the pack. |
