Package for packing oxygen-sensitive or moisture-sensitive products e.g. animal food, has one-way valve discharging gas from packaging chamber, and ventilation opening arranged in outer sleeve for ventilating intermediate chamber

摘要

The package has inner and outer sleeves (1, 2) partially connected with each other and formed as a side-gusseted bag and including single or multilayer films and side folds (5) that are connected with each other. The inner sleeve includes an opening for ventilating a packaging chamber that is liquid-tightly closed by the inner sleeve, where the opening is closed by a one-way valve (12) i.e. film valve. The one-way valve discharges the gas from the packaging chamber, and a ventilation opening (15) is arranged in the outer sleeve for ventilating an intermediate chamber between the sleeves. The inner sleeve includes an outer layer made of sealable polymer.