Procédé de blanchiment au moyen de solutions aqueuses de chlorites alcalins ou alcalinoterreux

摘要

Aqueous solutions of alkali and alkalineearth metal chlorites used for bleaching are activated by the addition thereto of hexamethylene tetramine. The solutions preferably contains 0.01-0.5 mol of activation to each mol of chlorite and bleaching is preferably carried out at 50-100 DEG C. The solutions are preferably used for bleaching cellulosic materials, e.g. nettle fabric and cord fabric.