Tear resistant film

Abstract

Tear resistant flexible polymeric film having at least one embossed zone, the at least one embossed zone comprising a plurality of adjacent embossed patterns (8) through the film material, each embossed pattern (8) comprising either at least one spiral embossed rib formation (12) having a plurality of turns spaced from each other by corresponding spiral less-embossed film material (20) or an array of concentric embossed rib formations (12) spaced from each other by corresponding concentric less-embossed film material (20), wherein the embossed rib formation or formations (12) are formed by stretching the film material thereof relative to said less-embossed film material (20). The film may be in the form of a bag, particularly a thin-walled disposable bag, in which the embossed patterns (8) increase the tear resistance of the bag. The embossed patterns may extend across the entire embossed zone.

Dependencies are inferred from the claim text.