FIELD: cigarette industry.
SUBSTANCE: planar blank for forming rigid pack therefrom, in particular cigarette pack comprising bowl-shaped casing and cover pivotally connected with casing, has a number of transverse bending portions and a number of longitudinal bending portions, some of longitudinal bending portions having first weakening extent and others - second weakening extent lower than first weakening extent.
EFFECT: provision for producing of pack with almost perfectly planar walls.
10 cl, 6 dwg
