easy-opening packaging article made of heat-shrink film showing directional tear

摘要

EASY OPENING PACKAGING ARTICLE MADE WITH CONTRACTABLE HEAT DISPLAYING DIRECTIONAL RIP. The present invention relates to a packaging article having tear initiators for initiating a manual tear that can be propagated to open a package and allowing a product to be readily removed from it without the use of a knife or scissors or any other accessory. The packaging article is made of a heat shrinkable multi-layer film having at least one layer containing an incompatible polymer mixture and / or a layer containing an inorganic filler and / or a layer having a high youth modulus. The film has a peak load impact strength of at least 50 Newtons per thousand. Tear initiators can be used to generate machine direction manuals to open the package, with the machine direction manual tear being able to propagate in the machine direction to the opposite edge of the packaging article. A procedure for manufacturing a package and manually opening the package is also described.