| 摘要 |
The disclosure relates to a method of producing a blank (50a, 50b) of thermosealable andcreased packaging laminate for a microwave-friendly packaging container, comprisingthe steps of: (a) advancing a continuous web (1) of a base laminate (10) in a conversionline for the packaging laminate so that continuous blanks for said packagingcontainers are oriented with their top-to-bottom direction transversely ofthe machine direction of the conversion line and with a top-to-bottom interface(51), (b) providing said base laminate (10) with creases and cutting into saidblanks (50a, 50b) of the packaging laminate, a continuous strip (2) of a materialwhich conducts heat and electricity being applied in the machine direction ina region over said top-to-top/bottom interface (51) and in conjunction withstep (a), and an elongate opening indication (53) being provided, before or afterthe application of the strip (2) so that the opening indication is positioned withinthe region of said strip. The discl osure also relates to a thus produced blank,as well as a packaging container which is formed using such a blank as the pointof departure. |
