Patent ID: 6015373
Filing Date: 2000-01-18
Classification: B31B,Y10S

Abstract:
A method of forming wicket-top, open mesh bags from a sheet of cross-laminated synthetic resin fabric comprising the steps of:advancing a longitudinally moving sheet of the cross-laminated synthetic resin fabric material, said material being formed of synthetic resin fiber open mesh having an upper and a lower surface of warp and weft fibers and having a top side and a bottom side and longitudinal side edges;folding the longitudinal side edge portions of said sheet of synthetic resin fiber open mesh toward each other into an overlapping center position above a lower central portion to form a folded tubular web of the cross-laminated synthetic resin fiber open mesh, such that the surface of one side edge of the fabric is in overlapping relationship with the upper surface of the opposite side edge of the fabric and having intersecting mesh fibers of the overlapping side edges in overlapping, overlying relationship with one another;sealing the intersecting mesh fibers in the folded overlapping side edge portions of the fabric together over the overlapping center position above the lower central portion in a longitudinal direction to form a tubular web having elongated side edges, and further;forming a plurality of web slots in said tubular web at selected positions along its length;forming laterally spaced wicket holes in said tubular web adjacent said web slots;laterally slitting an upper portion of said tubular web to form a wicket thereon;cutting said web transversely across its width at selected positions to form a finished tubular wicket-top sleeve; andclosing said tubular sleeve at a lower end opposite said wicket to form the open-mesh wicket-top synthetic resin fabric bag.