Paper sizing process

摘要

Paper sizing process comprising (1) adding a sizing composition of a cationic retention aid and a monoester of a benzene carboxylic acid anhydride having from 6 to 60 carbon atoms in the ester group to an aqueous pulp suspension or paper stock prior to web formation, and (2) heating said sized paper web to a temperature of from 80 DEG to 150 DEG C.