CPC D01D 5/06 (2013.01) [D01D 5/30 (2013.01); D01D 10/02 (2013.01); D01F 2/00 (2013.01)] | 10 Claims |
1. A process for the production of lyocell type cellulose filament yarns from a lyocell spinning solution of cellulose in an aqueous tertiary amine oxide comprising the following steps, wherein the process conditions are adjusted so that relation (1a) is fulfilled:
wherein L designates the length of the air gap (mm), v designates the production speed m/min), titer designates the titer of the individual filament (dtex) and p designates the length of the individual spinneret piece (mm) employed in the spinneret, and wherein v is 400 m/min or more.
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