| 摘要 |
Bag for containing liquid products which produce gas, in particular yeast, of the double wall type, comprising two opposite faces (2) joined one to the other along a perimeter heat-sealing line (3) and a spout (7) for delivering the liquid product placed on one of these faces (2), the double wall of the bag comprising a high permeability inner film (5) and a reinforcing outer film (6), wherein at least in the upper part of each of said two opposite faces (2) of the bag (1), between said inner film (5) and said outer film (6) at least one spacer element (10) is provided, attached to the outer film (6) at at least one opening (19) formed therein and provided with holes (17) for the release of the gases which permeate through said inner film (5). |
