Patent ID: 6706224
Filing Date: 2004-03-16
Classification: D01D,D01F,D04H

Abstract:
A process for the production of a spunlaid fabric containing solvent-spun cellulosic fibres comprising the steps of (i) extruding a solution of cellulose in an aqueous tertiary amine oxide via a spinneret with orifices to form extruded filaments; (ii) stretching the extruded filaments in an air gap; (iii) leading the extruded filaments into a precipitation bath; (iv) intercepting the extruded filaments in the precipitation bath by a first conveyor device; (v) forming a curtain of threads comprised of filaments essentially oriented parallel to each other and essentially of constant thickness on the first conveyor device; (vi) transporting the curtain of threads out of the precipitation bath using the first conveyor device onto a second conveyor device inclined downhill; (vii) transporting the curtain of threads on the second conveyor device onto a third conveyor device; and (viii) drawing off the curtain of threads, using the third conveyor device, at a speed less than the speed of the curtain of threads transported downwards on the second conveyor device, such that a spunlaid fabric is formed on the third conveyor device.