A method for the production of paper, to the increase of the filler material fraction and to improve the bond strength on the inside with scott

摘要

PURPOSE: A manufacturing method for increasing the amount of fillers and the scott internal reinforcing strength in paper is provided, in which the strength of the scott internal reinforcing strength is increased in accordance with increasing addition quantity of enzyme, and raw material pulp can be saved in accordance with increasing fillers content. CONSTITUTION: The paper is obtained by a process containing the steps of: mixing pulp, hold enhancing agent, filling agent and paper strength agent to produce paper solution; maintaining about 40deg.C and about pH4.0-6.8; and then treating the paper solution with 0.01-0.2wt.% of cellulase type enzyme, based on the weight of wood pulp. The cellulase type enzyme is produced by trichoderma longibrachiatum, and has over 3600U/ml of carboxy methylcellulose activity.