Abstract: A process for producing sausage casings is provided, wherein strips of intestine which have been rendered porous and sticky are joined with overlapping edges on a mandrel, and dried, at least the edge of the stuck product being dried and its stickiness being decreased only to the extent that the intestine material can be moved along the mandrel as a tube, whereafter the operation is repeated using this edge as joining element, and after the desired length of casing has been obtained, the still sticky part thereof is dried completely. If desired, casings can be made of two layers of strips or of one layer of strips with a proteinaceous coating in which case in each sticking operation a single-layer edge is used as joining element, while furthermore, a netting can be applied between two layers of intestine strips or between such a layer and a proteinaceous coating.

Abstract: A process is provided for preserving natural intestines by treating the intestines with a mild alkaline or acidic solution, followed by drying, preferably in stretched condition. The invention also provides the possibility of combining two or more intestines by drying the treated intestines in a position with overlapping edges.