US4946291: SEMI-BAG WITH LINER
Many companies have had issues with liners coming out of the bulk bags as they discharge or slipping down into the bags as they are filled. Until the 'Perma' Liner® the best answer was an expensive preformed liner with Tabs taped to it. AmeriGlobe did not believe that that was the best answer. We decided that there had to be a way to attach a gusseted liner firmly to the bulk bag. The 'Perma' Liner® was the result. The 'Perma' Liner® uses circumferential glue lines to attach even a normal gusseted liner to a bulk bag.