Production of textile filaments from carboxymethylated cellulosic pulps

Textile filaments were fabricated from a solution obtained from carboxymethylated cellulose dissolved in aqueous NaOH solution, by wet spinning in an acid coagulation bath. Spinning is possible for modified cellulose with a carboxyl group content of at least 1.3 mmol/g cellulose. A post-treatment—heating in the presence of sodium hypophosphite—improved the properties of these filaments. This is a novel process, much more environmentally friendly...