Abstract: A one-ply or multi-ply food casing based on (co)polyamide, or which has an outer ply based on (co)polyamide, is disclosed that is printed with a printing ink cured by a free radical mechanism. The printing ink is printed on a layer of a base ink which also cures by a free radical mechanism. The base ink contains, in one and the same molecule, at least one group which can form a bond with the (co)polyamide surface, in particular an isocyanate group, and at least one ethylenically unsaturated group which can undergo a free radical polyaddition reaction, in particular a (meth)acrylate group. The print adheres firmly on the casing and is abrasion- and scratch-resistant, even without additional varnish.

Abstract: A sausage product has a sausage casing closed at the ends and a sausage contents contained in the sausage casing. The sausage casing has an opening element that, when actuated, opens the sausage casing in the area of the opening element. The opening element is arranged such on the sausage casing that the sausage casing is opened by the opening element in a direction substantially transverse to a longitudinal sausage axis of the sausage product.