D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 2/00 (2006.01) C08J 5/18 (2006.01) D01D 5/06 (2006.01) D01D 5/088 (2006.01)
Patent
CA 2102809
To prepare cellulose mouldings, a solution of cellulose in a tertiary amine- oxide is moulded in a hot state and the moulded solution is introduced into a precipitation bath in order to precipitate the contained cellulose, wherein the hot moulded solution is cooled before introduction into the precipitation bath. Cooling occurs immediately after the moulding process and preferably consists of blowing air horizontally on to the cellulose moulding. The process according to the invention allows spinning of the cellulose solution with a high fibre density without the spun fibres sticking together after emerging from the spinneret. In spite of the high fibre density, it furthermore allows the use of a long air gap between the spinneret and the precipitation bath, by which means sufficient time is generated in the spinning process to affect the textile properties of the fibres by drawing at the die (Figure 1).
Ecker Friedrich
Jurkovic Raimund
Koberger Hermann
Rauch Ernst
Ruf Hartmut
Lenzing Aktiengesellschaft
Sim & Mcburney
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