A method for producing fire-retarded blend fibers having a fire resistance LOl-value of at least 21% O.sub.2, made from cellulose and chlorine containing polymer. Chlorine containing polymer having a chlorine content of 30-75% by weight, is blended, either as such or dissolved in a solve
A process for producing regenerated cellulosic articles from cellulose which has been dissolved in a mixture of dimethyl sulfoxide (DMSO) and formaldehyde, and for recovering the solvent chemicals. The DMSO/formaldehyde solution of cellulose is brought into contact with an aqueous so
