Abstract: Disclosed is a cylindrically-shaped hollow rod which is closed at one end, comprising a shirred tubular casing, and an integral, essentially cylindrically-shaped, plug-type closure element which is coaxially arranged in the cavity of the hollow rod and which comprises a deshirred tubing portion and an irregularly folded, compressed tubing portion, wherein a first one of the tubing portions is adjacent to the inside wall of the hollow rod, and the second tubing portion is surrounded by the first tubing portion, wherein one end of the first tubing portion, which points in the direction of the open end of the hollow rod, is bent back at an angle of 180.degree. and integrally changes into the second portion, and wherein the other end of the first tubing portion integrally changes into the hollow rod. Also disclosed is a process for producing the hollow rod having the end closure according to the invention.

Abstract: Disclosed is a smoke-permeable, nonreinforced film comprising regenerated cellulose, for manufacturing tubular sausage casings which have a seam extending in the direction of their longitudinal axis. The film has a wet tear strength of from about 18 to 30 N/mm.sup.2, both in the longitudinal and transverse directions, a degree of orientation in the range from about 1 to 1.2, and a number of alternate bends ranging from about 5,000 to 8,000 in the longitudinal direction, and from about 9,000 to 16,000, in the transverse direction.Also disclosed is a process for producing the film in which viscose is extruded in the form of a web, thereafter precipitated by treating it with a heated casting solution and then regenerated into cellulose hydrate gel. The casting solution used to precipitate the viscose comprises, per liter of solution, at least about 160 g of sulfuric acid and at least about 300 g of sodium sulfate and the molar ratio sulfuric acid/sodium sulfate is in the range from about 0.7 to 0.9.

Abstract: Disclosed is a shirred sausage casing comprising a tubular casing having an area of increased thickness, e.g., a glued seam, running in the direction of its longitudinal axis. This area of increased thickness is helically arranged and extends transversely to the helical windings of the main-fold constituting the outside of the shirred sausage casing. The area of increased thickness is displaced by its width, between two contiguous windings of the main-fold. Also disclosed is a process for manufacturing a casing of this type.

Abstract: Disclosed is a tubular sausage casing of a cellulose material having a longitudinal seam region whereat is located a smoke-permeable adhesive-containing layer of a substantially water-insoluble cationic resin which is a condensation product of a polyamide-polyamine, an aliphatic polyamine or polyamide with bifunctional halohydrin or derivative thereof. The casing also includes a coating on its inside surface of an oily emulsion having a first component comprising a water-soluble cellulose ether or a water-soluble modified starch, and a second component comprising an oil and an emulsifier. Also disclosed is a process for producing this casing and sausage products made therefrom.

Abstract: Disclosed is a process and apparatus for forming a tube from a flat web by overlapping the edge zones of the web with one another or with a flexible strip while maintaining distance between the adhering, overlapping surfaces in order to provide horizontally straight edges, and thus a circumferentially constant diameter.