B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
210/22
B65D 85/80 (2006.01) B65D 5/06 (2006.01)
Patent
CA 1109420
ABSTRACT OF THE DISCLOSURE The invention provides a packaging container, provided with a tear-open perforation, of the kind which is produced from a laminate comprising a relatively stiff and unmalleable basic layer, at least one side of which being turned towards the inside of the package has a leakproof unbroken plastic coating, said tear perforation being so arranged that it substantially penetrates the basic layer but without penetrating the plastic layer turned towards the inside of the package, characterized in that said tear perforation along the region on the packaging container where, during the shaping of the package, the packaging material is exposed to folding or some other processing which intensely stresses the packaging material is sparsely perforated or not at all or it is made in such a way that the packaging material is not weakened to such an extent that the tear perforations breaks up but that the tear perforation along non-bent surfaces of the packaging container, or along surfaces stressed in some other way, have a more readily tearable perforation.
304216
Ericsson Thomas
Holmstrom Hakan
Marks & Clerk
Tetra Pak International Ab
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