Tubular casing, process for its manufacture, and its use as a sa

Details Tubular casing, process for its manufacture, and its use as a sa Tubular casing, process for its manufacture, and its use as a sa

1981-11-25

1983-08-30

Dixon, Jr., Wiliam R.

Pipes and tubular conduits

Flexible

Casing

138154, 138156, 138170, 138145, 428 36, 476105, 476140, 476412, F16L 1100, A22C 1300

Patent

active

044011369

ABSTRACT:
Disclosed is a tubular casing of fiber-reinforced regenerated cellulose comprising a film web which is curved to form a tube. The edge regions of the film web, which run parallel to the longitudinal axis, abut or overlap slightly and are sealed by means of a film strip which covers both the edge regions. The film web and the film strip composed of the same material have, in the wet remoistened stage, a breaking strength of about 15 to 30 N/mm.sup.2 and an elongation at break of about 30 to 50% in the longitudinal direction of the web, and a breaking strength of about 15 to 35 N/mm.sup.2 and an elongation at break of about 30 to 50% in the transverse direction of the web. The breaking strength in the transverse direction of the web is equal to or greater than that in the longitudinal direction of the web. On its entire surface facing the film strip, the tubular casing has a substantially gas-impermeable and sealable layer, as has the film strip on the surface which comes into contact with the tubular casing. The film web is produced from viscose, and is prevented from shrinking during the process and is stretched in the transverse direction during drying. The tubular casing finds particular application as a sausage casing.

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