Continuous process for the manufacture of tubular food casings

Details Continuous process for the manufacture of tubular food casings Continuous process for the manufacture of tubular food casings

A - Human Necessities

22

C

A22C 13/00 (2006.01) B29D 23/00 (2006.01)

Patent

CA 2127659

Abstract of the Disclosure Tubular food casings, such as artificial sausage casings, are made from regenerated cellulose in a continuous process that permits removal of fluids produced during the cellulose regeneration step, so that the tubular casing can be made in a non interrupted manner. The process comprises: a) extruding an alkaline viscose solution through an extrusion die within a coagulation bath, b) inducing a counter flow within the extruded tubular casing which removes the gases and liquids contained inside the tubular casing through an internal orifice in said extrusion die by means of a flattening device located at the end of the coagulation-regeneration step, c) passing the tubular casings through a series of water, desulfurizing, water and plastification baths and through a drying step and finally winding it up in flattened condition characterized in that less than 3% of the inside surface of the casing is covered by particulates as measured by field emission scanning electron microscopy and by image analysing techniques.

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