US4997502: PROCESS AND APPARATUS FOR APPLYING AN ADHESIVE TO THE INTERIOR SURFACE OF A BULK BAG AND GLUEING A PLASTIC LINER WITHIN THE BAG
Having an innovation like liner attachment is worthless without a consistent way to apply it. We designed a machine to inflate the bulk bag and spray circumferential glue lines. This machine applies a consistent amount of glue. The liner can then be placed into the bulk bag and inflated. The inflation of the liner ensures that the liner is positioned properly in the bag and creates pressure to help improve the adhesion between the bag and liner.