A laminate to be used by the manufacture of packings containing products releasing gases

摘要: The laminate is especially suited for packing products releasing gases. comprises - when used in a and seen from the inside out sequence polyethylene film (2), sheet (3) of aluminium, polyester (4). A limited area outer not laminated to which produces channel (8). Within aluminium inner layers (3,4) are perforated such manner that an outlet opening (7) formed made laminate, said ending channel. constructed so as end at bottom top rims (9, 10) finished packing. In this very simple inexpensive one-way valve ensures gases by contents may ooze slowly. At same time noxious oxidizing prevented high extent entering interior