Tubular packaging casing the wall of which contains fibers impregnated and coated with cellulose hydrate produced from a viscose, and including an additive in the form of a colouring material or a protective agent against light rays, and method for its production

摘要

Disclosed is a packaging material, comprising a fibrous base web wherein at least a part of the fibers forming said base web include at least a partial coating of a mixture of chemical substances which comprise a predominant proportion of a chemical binder based on a synthetic water-soluble heat-curable cationic resin precondensate and of a minor proportion of at least one coloring chemical substance, the proportions being relative to the total weight of the mixture of substances. Also disclosed is a method of manufacturing this packaging material and a sausage casing made therefrom.