A blank of sheet material for forming a container is provided. The blank includes a tray panel assembly, a cover panel assembly, a fold line connecting the tray panel assembly and the cover panel assembly, and an anti-buckling mechanism interrupting the fold line. The anti-buckling mechanism includes a series of cuts positioned at least partially below the fold line in the tray panel assembly. The series of cuts extends more than half a length of the fold line. Each cut of the series of cuts is substantially straight. The anti-buckling mechanism further includes an upper cut line defined in the cover panel assembly.
展开▼