HEAT AND PRESSURE-FORMED FLEXIBLE CONTAINERS AND METHODS FOR MAKING THEM

摘要

A flexible container (10) comprises first and second flexible sheets (52, 54) having peripheral edges, which have been sealed together along a plane by a peripheral seal (28) to create an interior chamber (12, 14) in the container. At least one of the first and second flexible sheets includes a preformed, stress-relieved region (48, 50) which is extended outside the plane and overlies at least a portion of the interior chamber.