Multi ply bag mfr - with adhesive between paper and plastic lining spaced from block bottom weld

摘要

Multi-ply block bottomed bags, are made from plastic lining tube welded across at spaced posns. An outer paper ply, is formed from a web coated with adhesive at spaced positions along its length in transverse lines and adhered to the lining. It is arranged that lines of this adhesive shall come in positions spaced from the bottom weld in each bag and shall lie adjacent to the edge of the block bottom. The bag may be provided with a filling valve, inserted through a cut in the lining and stuck to it with adhesive.