| 摘要 |
PROBLEM TO BE SOLVED: To improve a re-closing property of an exterior packaging carton which can be sealed again. SOLUTION: A folding crease 4 is arranged against an insertion flap 3 of a carton which can be sealed again. With such as arrangement as above, the insertion flap 3 is deformed from its flat state to a slight curved shape by folding the insertion flap 3 along the concave-arcuate folding crease 4 when the insertion flap 3 is inserted into a slit 6 after a fastener segment 2 is broken and its sealed state is opened. At the time of insertion, its rigidity can be attained, and after its re-sealing, a restoring property from its folded state can also be got, resulting in that not only an easy re-sealing can be improved, but also a reduction in re-sealing property caused by a permanent folded state can be resolved. In addition, insertion of the insertion flap 3 can be further facilitated by arranging the slit 6 in a protruded arcuate shape in opposition to the insertion flap 3. This invention can be applied to any type of raw material of a carton if the raw material is flexible, and a shape of the carton can be freely selected.
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