Film bag

摘要

A film bag has a pair of longitudinally extending film face panels having longitudinal edges and first and second folded film gussets having longitudinal edges welded at longitudinal seams to respective longitudinal edges of the face panels and formed with two spaced throughgoing cuts forming a handle loop. A separate film inner liner panel lies against an inner face of the first gusset, extends a full transverse width of the first gusset, and is fixed at the longitudinal welds of the first gusset to the front panels so that the liner prevents leakage from the bag through the cuts.

主权项

1. A film bag comprising:
a pair of longitudinally extending film face panels having longitudinal edges and transversely extending end edges; first and second folded film gussets having longitudinal edges and transversely extending end edges; longitudinal welds forming longitudinal seams between the longitudinal edges of the film gussets and the respective longitudinal edges of the face panels, the first gusset having between the respective longitudinal seams two spaced throughgoing cuts forming a handle loop; transverse welds forming transverse seams between the transverse end edges of the film gussets and the transverse end edges of the face panels; and a separate film inner liner panel longitudinally coextensive and transversely coextensive with and lying only against an inner face of the first gusset, extending a full transverse width between the longitudinal edges of the first gusset and a full longitudinal length between the transverse end edges of the first gusset, and fixed at the longitudinal and transverse welds of the first gusset to the face panels, whereby the liner prevents leakage from the bag through the cuts.