Patent ID: 11939113
Assignee: NIVERPLAST HOLDING B.V.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A method for manufacturing the T-shirt bag of claim 1 for use in a T-shirt bag positioning device, comprising the steps of:
forming a foil bag with the side folds from a tubular flexible foil;
sealing a piece of tubular foil to form the closed top edge and the closed bottom edge;
providing the recess extending from the top edge into the two side folds, so that the left and a right carrying aperture and left and right front handle parts and left and right rear handle parts are formed;
inserting punch plates into the two side folds from outside;
providing perforation openings with the incision in the front foil layer and in both front side fold portions, and providing perforation openings without incisions in the rear foil layer and in the two rear side fold portions; and
providing the spot weld between the front foil layer and the two front side fold portions.