Cellulose casing is a coating for sausages made from regenerated cellulose.
Collagen is a protein, which occupies the largest portion of the fibre of the connective tissues of vertebrates.
Casings of a single layer of Polyamide for smoked products. There are two varieties of Monolayer or Monolayer Polyamide: Oriented and Non-Oriented.
The plastic is used in any type of sausage packaging, specially, for non-smoked products where high performance is expected, since smoke and water do not pass through the casing.