Easy-to-peel heat-sealing multilayer film from coextruded, biaxially oriented polypropylene

摘要

The invention relates to a coextruded BOPP film with easy-to-peel sealing properties which is printed in a non-inked sealing zone with a thermoplastic lacquer having a screen-type pattern. Said lacquer contains at least one polyvinyl butyral (PVB) or at least one ethylene-vinyl acetate copolymer (EVA copo) as a feature-specific solid component. Said lacquer is only weakly sealable against coextruded BOPP. The spacing effect of said lacquer gradually decreases as the softening increases with rising temperatures. The invention further relates to packagings produced from said film.