ENZYMATIC OPACIFYING COMPOSITION FOR PAPER, PULP OR PAPERBOARD, PROCESSES USING SAME AND PULP, PAPER OR PAPERBOARD PRODUCED THEREFROM

摘要

An organic agent for enhancing opacity in paper, paperboard or pulp comprisesahydrolase or an oxido-reductase; this enzymatic opacifying agent overcomesdrawbacks associated with traditional organic and inorganic opacifying agentsbutalso serves to provide increased strength and reduced porosity in paper andpaperboard.