| 摘要 |
A carton and carton blank for forming a carton, and comprising first, second, third and fourth substantially four-edged panels, each comprising a side wall part (4,6,8,10), a top closure obturating part (24,26,28,30) and a top sealing fin part, one of the panels being substantially free from any line of weakness extending inwardly from lateral edge zones of the one of the panels from an outermost boundary of the side wall part (8) to an outermost boundary of the top sealing fin part. Alternatively, the one of the panels is substantially free from any line of weakness extending inwardly from lateral edge zones of the one of the panels from an innermost boundary of the top closure obturating part (28) to an outermost boundary of the top sealing fin part. A further alternative of the one of the panels being substantially free from any line of weakness extending inwardly from lateral edge zones of the one of the panels from an outermost boundary of the side wall part (8) to an outermost boundary of the top closure obturating part (28) is also disclosed where the obturating part includes a loop of weakness (44). Transition sub-panels (68,74) in the carton top closure area are also disclosed. |
