CHANGE IN FIBER SURFACE AREA OF ASPEN KRAFT PULP DURING ENZYMATIC TREATMENT

摘要

The aspen kraft pulp was totally-chlorine-free bleached with laccase/ mediator system and hydrogen peroxide. The results showed that laccase/mediator treatment can improved the delignification and brightness of pulp, which was consistent with the increase of the surface area of aspen kraft pulp fiber. The surface area of aspen kraft pulp fiber was determined by the adsorption of Direct Sky Blue 6B during the treatment of bleaching.