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Patent AT-E401004-T1: [Translated] SEAMLESS FILM HOSE, METHOD AND DEVICE FOR PRODUCING A SEAMLESS FILM HOSE

Published by National Center for Biotechnology Information (NCBI) | U.S. Department of Health & Human Services | Metadata Last Checked: September 07, 2025 | Last Modified: 2025-09-06
A sausage skin is cut from a seamless hose of cellulose material made of water-based N-methylmorpholine-N-oxide (NMMO) spinning solution, and incorporating a protein, a filling agent and a stabilizer if required. Also claimed is a process to manufacture the cellulose foil hose by extrusion through an annular jet from which it passes through a bath before changing direction at a set of rollers. The hose emerges from the bath to pass through a washing machine (25, 26), a plasticizing station and a drier (28). The protein used is from the group consisting of natural globular proteins e.g. casein, Soya, wheat, maize, peanuts or peas and represents preferably 8-45 per cent by weight of the hose. The filling agent is an organic or inorganic material e.g. wheat bran, micro-crystalline cellulose or chitosan. The inorganic powder ingredient is e.g. CaCO3, BaSO4, SiO2, TiO2. The filling agent grain size is up to 200 m, with a thickness of up to 20 m. Also claimed is a commensurate manufacturing assembly.

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