Kalle Gmbh & Co. Kg

Kalle Nalo Gmbh & Co Kg

Klaus Berghof

Klaus-Dieter Hammer

Herbert Gord

Reinhard Maron

Gerhard Grolig

Rainer Neeff

Markus Eilers

The present invention provides a seamless tubular film on a cellulose base, being produced by extruding an aqueous cellulose N-methyl-morpholine-N-oxide spinning solution. The maximum degree of roughness R is from greater than 0.1 &mgr;m to 0.5 &mgr;m and an average degree of roughness R is from 0.005 to 0.014 &mgr;m. On the surface of the tubular film is formed in contact with an electrolyte an electrokinetic potential, the size of which depends on the pH value of the electrolyte.

Seamless tubular film and methods and devices for producing a seamless tubular film materials

The invention concerns flat or tubular cellulose-based foodstuff casings which are prepared by extruding (&ldquo;spinning&rdquo;) cellulose dissolved in N-methyl-morpholine-N-oxide by means of a nozzle with an annular gap. After extrusion, the casings are stretched transversely in ambient air by blow moulding, and are then treated with an NMMO-containing aqueous spinning bath. The tubular casings are particularly suitable as sausage casings. Cut open, they can also be used as flat foils.

Cellulose-based foodstuff casings prepared by the amine oxide process

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Munich, Georgia

Klaus Berghof