Fink, H.P.H.P.FinkWeigel, P.P.WeigelWalenta, E.E.WalentaRemde, H.H.RemdeFrigge, K.K.Frigge2022-03-082022-03-082005https://publica.fraunhofer.de/handle/publica/306856Production of flexible cellulose fibres involves spinning cellulose solutions through spinnerets through an air gap into an aqueous and/or alcoholic coagulation bath containing amine oxide and then drying. The novelty is that, before drying, the moist spun fibre is passed through after-treatment bath(s) containing water and water-miscible alcohol(s), diol(s) and/or triol(s) and washing bath(s) containing water, an alkanol, a diol or a triol. Also claimed are cellulose fibres made by this method, which have an initial modulus < 1500 cN/tex. Preferably the after-treatment bath is alkaline and especially consists of a mixture of alkanol and aqueous sodium hydroxide (NaOH) solution, more especially ethanol (EtOH) and 1-30% aqueous NaOH solution. The washing bath contains EtOH. ADVANTAGE - The orientation, modulus, brittleness and tendency of the fibres to fibrillate are all reduced compared with the usual fibres spun from solutions in amine oxides, especially N-methylmorpholine N-oxide (NM MNO), or aqueous NMMNO.de608668patent1996-19600572