Tubular packaging casing

US4593721A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Ludwig Klenk · Obermoschel, DE
• Klaus Heyse · Bad Soden, DE

Key dates

• Filing date: Oct 19, 1984
• Grant date: Jun 10, 1986
• Expiry date: Oct 19, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24777
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a tubular packaging casing suitable for use as a sausage casing and a flat film for forming same, the flat film being shaped into a tubing and comprising cellulose hydrate, preferably fiber-reinforced cellulose hydrate. The edges of the flat film are bonded by means of a sewing thread, and in the area of the sewing thread, the packaging casing has an increased content of plasticizer and, optionally, also an increased moisture content. Furthermore, a flat film for producing the packaging casing is disclosed, which has an increased content of plasticizer and optionally also of water along its two edges.