Abstract: A single dose filter bag for infusible product is closed by folding a flap made in the upper part of the filter bag, attaching a connecting thread to the filter bag and to a pickup tag by first and second terminal portions respectively of the connecting thread, forming a short vertical or horizontal stitch using first and second auxiliary threads respectively.

Abstract: An apparatus, located downstream of a packaging line for packaging of blister packs, works in conjunction with a carton ready-making line and comprises three devices positioned along a conveyor having an upper surface fitted with crosspieces to delimit seats designed to receive said blister packs. The first device transfers the blister packs from the packaging line to the seats, keeping the blister packs with the blisters turned upwards, while the second device, positioned downstream of a station, fills empty seats, where faulty blister packs where placed and from where the faulty blister packs where removed, with non-defective blister packs, the second device feeding itself with non-defective blister packs taken from the seats. The third device forms stacks of blister packs, folds an information leaflet, and inserts the stacks, together with the leaflet, into cartons coming from the carton ready making line.