CONTAINER HAVING IMPROVED CURVILINEAR EDGE Russian patent published in 2019 - IPC B65D85/10 

FIELD: package and storage.

SUBSTANCE: container for consumer articles is at least partially formed of layered workpiece on the basis of cellulose fibre, having thickness (T) and forming part of container, which contains at least first flat wall and second flat wall, which are connected to each other by means of part in form of curvilinear edges. Curvilinear edge part has an inner surface and an outer surface, and the inner surface of the part in the form of a curvilinear edge forms an ablation region (A) having a length (L) in the longitudinal direction of the portion in the form of a curved edge and a width (W) which extends across the portion in form of curvilinear edge. Ablation region comprises two or more ablation lines extending substantially in the longitudinal direction of the portion in the form of a curvilinear edge. Each ablation line has minimum residual thickness (RT), which is less than thickness (T) of layered workpiece, wherein the minimum residual thickness (RT) of each of the two or more ablation lines is at least about 30 percent and less than about 60 percent of the thickness (T) of the blank.

EFFECT: gap between lower points of two adjacent ablation lines is more than 0_2 mm and less than 1,6 mm.

15 cl, 11 dwg