Bag for the containing of liquid products emanating gas, in particular yeast

Abstract

Bag for containing liquid products which produce gas, in particular yeast, of the double wall type, including two opposite faces ( 2 ) joined one to the other along a perimeter heat-sealing line ( 3 ) and a spout ( 7 ) for filling/delivering the liquid product placed on one of these faces ( 2 ), the double wall of the bag including a polyethylene-based inner film ( 5 ) with high permeability and a reinforcing outer film ( 6 ), wherein the outer film ( 6 ) is made of a polyethylene-based nonwoven fabric.

1 . 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 filling/delivering the liquid product placed on one of these faces ( 2 ), the double wall of the bag comprising a polyethylene-based inner film ( 5 ) with high permeability and a reinforcing outer film ( 6 ), characterised in that said outer film ( 6 ) is made of a polyethylene-based nonwoven fabric. 
     
     
         2 . Bag according to  claim 1 , characterised in that said nonwoven fabric is a mixture of polypropylene and polyethylene (PP/PE). 
     
     
         3 . Bag according to  claim 1 , characterised in that said nonwoven fabric of the outer film ( 6 ) has a weight of 60-85 g/m  2 . 
     
     
         4 . Bag according to  claim 1 , characterised in that said inner film ( 5 ) is a coextruded LLDPE of 30 μm and 28 g/m 2 .