Abstract: Method of producing a packaging pouch includes the steps of forming a tube on a rotary machine by longitudinally rolling at least one band of flexible material, dividing the tube into lengths and forming the bottom of each pouch to form a compartment. The step of forming the bottom includes paying out and driving and feeding into the forming tube at least one other band, simultaneously dividing the tube into lengths and the other band into segments, causing the front part of the tube to become staggered relative to the front part of the other band or the lengths to become staggered relative to the segments, and finally forming the bottom of each pouch by folding each length transversely.