Brightness and viscosity of dissolving pulp are crucial parameters in determining the quality of dissolving pulp product, representing the brightness and strength of cellulose fibers in the pulp. Brightness of dissolving pulp is maintained >70%ISO in the D0 bleaching stage and 80%ISO-83%ISO in the Peroxide Oxidation extraction (EOP) stage, with the viscosity of dissolving pulp expected to be 50…