SEALED INNER PACKAGE PROVIDED WITH AN EXHAUST HOLE REGULATED BY AN EXHAUST VALVE, SHEET OF PACKING MATERIAL, AND METHOD OF PRODUCING A SHEET OF PACKING MATERIAL

摘要

Package (1) having: a group (4) of articles; a sealed inner package (3), which encloses the group (4) of articles, has an article extraction opening (5) and is made from a sheet (14) of packing material; a reclosable sealing flap (6), which is superimposed on the sealed inner package (3) over the extraction opening (5) and is glued to the sealed inner package (3) about the extraction opening (5) by a pressure- sensitive re-stick adhesive (16); at least one exhaust hole (18), which is formed through the sheet (14) of packing material and is arranged at the sealing flap (6); and an exhaust valve (19) which is superimposed over the exhaust hole (18) and has at least one valve element (20), which is defined by a portion of the sealing flap (6) separated from the rest of the sealing flap (6) by a U-shaped through incision (25) and is connected to the underlying sheet (14) of packing material by the re-stick adhesive (16).