Foil layer i.e. laterally open foil layer, separation method for production of infusion bags, involves moving foil layers relative to each other, and weakening cross section of one foil layer, where foil layers are cut by cutter or laser

摘要

The method involves moving foil e.g. double-wound foil, layers i.e. laterally open foil layers, relative to each other, and weakening a cross section of one of the foil layers in an upstream step. Foil layers are cut in the upstream step by a cutter or a laser and are fixed on a side during separation of the foil layers by relative motion. The foil layers are partially welded before the separation, and the relative motion takes place by bending via a roll and an eccentric tappet and a wedge. Independent claims are also included for the following: (1) a device for separation of foils (2) a system for welding an insertion piece (3) a method for manufacturing a product.