the invention concerns packaging of products on sale outlets . it concerns a feed roll for heat sealing package tubing reel , comprising a body provided with , in particular : means supporting at least one reel of package tubing ; an outlet head for the tubing including : at least an outlet window for the tubing , means for cutting the tubing , means for welding the tubing , means guiding the tubing between the reel and the outlet head . the invention is useful for supplying and welding a heat sealing tubing in a fish market .