2002-8-14 · 1. Bag, in particular for wrapping food, made of a composite material including at least one first layer of a cellulose-containing material and a second layer of plastic, characterized in that the first layer has a specific weight of from 15 to 40 g/m 2 and the second layer has a thickness of from 6 to 20 µm, that the composite material is perforated and that the ratio of the open area to the ...