Unlike viscose rayon, Tencel is produced by a straight solvation
process. Wood pulp is dissolved in an amine oxide, which does not lead
to undue degradation of the cellulose chains. The clear viscous solution
is filtered and extruded into an aqueous bath, which precipitates the
cellulose as fibers. This process does not involve any direct chemical
reaction and the diluted amine oxide is purified and reused. This makes
for a completely contained process fully compatible with all
environmental regulations.