Patent ID: 7770362

Claim:
A method for producing and filling sacks comprising: supplying a material that forms the sacks in a form of a tubular material from an unwinding device to a sack-forming device, the tubular material being supplied in a cyclically intermittent transport mode; providing the tubular material in the sack-forming device with at least four longitudinal seams while the tubular material is in a laid-flat state, the longitudinal seams extending at least over a major part of a sack length, the step of providing the longitudinal seams including applying a weld during a stopped phase of the intermittent transport; cooling the longitudinal seams of the tubular material in a cooling device; separating the cooled, seamed tubular material into individual tube pieces; and transporting the tube pieces by grippers during at least one part of a path in the sack-forming device.