Paperboard carton with improved perforated opening and method of making same

摘要

A paperboard container is provided having an opening member defined by an array of perforations. A coating of plastically deformable and readily rupturable material is disposed on the inside surface of the container and extends on each side of each perforation in the array of perforations including the continuous section of paperboard material between adjacent perforations. The cooperation of the coating of plastically deformable material and the paperboard material ensures that the severances between adjacent perforations will be more precise, less ragged and will not produce detached slivers of paperboard material.