| 摘要 |
A packaging container is disclosed formed from a corrugated board blank having side panels 1,2, intervening end panels 3,4, a standard connecting flap F, identical pairs of inner closure flaps 5,6,7,8 extending from the end panes 3,4 along fold lines and outer closure flaps 9,10,11,12 extending from the side panels 1,2 along fold lines, the outer closure flaps 9 to 12 having corner portions 14 defined by die cut perforations 15, and preferably regions 16 defined by perforations 17 located centrally of the inner closure flaps 5 to 8 and extending into the end walls 3,4, at least the corner regions 14 being glued to the inner closure flaps 5 to 8 such that when an attempt is made to lift the outer closure flaps 9 to 12 the flaps rupture along the perforations 15 to provide a tamper-evident indication.
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