(EN) The present invention relates to a process for regeneration of cellulose from a viscose solution in a spin bath, wherein the viscose solution is brought in contact with a spin bath containing an amphoteric surfactant having the general formula RNA (CnH2nNA) x-1A (I) where R represents a hydrogen or an alifatic group with 1-24 carbon atoms, each A represents hydrogen, an alifatic group with 1-24 carbon a,oms or a BOOCCmH2m-group, where m is a number from 1-3, B is hydrogen or a salt-forming cation, n is a number from 2-3, x is 1- 8, and the number of BOOCCmH2m.- groups are from 1 to x + 2, with the provision that the total number of carbon atoms in the aliphatic groups is from 8 to 45.
