A method of manufacturing a packing laminate and a packing laminate manufactured according to this method.

摘要

A method for the design of a packing laminate (5) and a packing laminate (5) manufactured according to this method. Packing containers are often made from a laminated material including a relatively thick carrier layer on both sides of which thinner, liquid-tight plastic layers are applied. During its conversion into a packing container the laminate (5) is folded and especially when one or more layers (3, 4, 5) are to be folded at the same time there is a great risk that cracks occur in the layer situated on the outside of the carrier layer in the fold, which layer is severely stretched during the folding. According to this invention it is suggested to diminish the stretching of the outer layer (3) by cutting through the carrier layer where the fold is to be made, so that the carrier layer can be compressed during the folding.

This makes the distance around the fold shorter for the outer layer (3) so that the stretching is diminished and kept inside the strechability of the material, which means that cracks can be avoided.