Plastic bag or sachet with inviolable closure flap - for opening by tearing strip along perforated line

摘要

Plastic bag or sachet comprises two sheets, which are joined along >=2 longitudinal edges and of which one is extended beyond a free transverse edge of the other sheet by a flap turned down over the second sheet. The flap is fixed along its two longitudinal edges to those of the two sheets. The flap is also fixed e.g. by welding or adhesion along its free transverse edge, and has >=1 perforated line, weak line, etc. parallel to its transverse edge between the latter and the fold line of the flap, to allow opening of the bag or sachet by tearing the flap along the perforated line. The number and complexity of mfg. operations are reduced.