초록 ▼

The design comprising bag (36) formed with deep side gussets (42, 44). It has a body portion and a neck. The front face, rear face and gussets are heat welded together at the base of the bag. At the neck (56) the front face is welded to the front sheets of the gussets and the rear face is welded to

The design comprising bag (36) formed with deep side gussets (42, 44). It has a body portion and a neck. The front face, rear face and gussets are heat welded together at the base of the bag. At the neck (56) the front face is welded to the front sheets of the gussets and the rear face is welded to the rear sheets of the gussets so that the gusset can open at these parts. At the free ends of the neck (66) the front face, rear face and gussets are heat welded together to be held together when the bag is opened.

대표청구항 ▼

1. A liner bag comprising:a front panel having side edges, a rear panel having side edges, and gussets between the side edges of the front and rear panels, each gusset comprising a front gusset part and a rear gusset part, the side edges of the front panel being joined to the front gusset parts and

1. A liner bag comprising:a front panel having side edges, a rear panel having side edges, and gussets between the side edges of the front and rear panels, each gusset comprising a front gusset part and a rear gusset part, the side edges of the front panel being joined to the front gusset parts and the side edges of the rear panel being joined to the rear gusset parts, the liner bag having a body part and a neck at its upper end, which neck is adapted to receive therein a filling nozzle and which neck can be heat sealed after the liner bag has been filled to seal the liner bag, the neck being formed by sealing together the edges of the front panel to the front gusset parts and by sealing together the edges of the rear panel to the rear of gusset parts; wherein the front and rear panels and the gusset parts are all sealed together only at the free end of the neck.