HIGH TEMPERATURE LOW CONSISTENCY REFINING OF THERMO-MECHANICAL PULP

摘要

A method of post-refining a thermo-mechanical pulp fiber suspension to reduce the high bulk characteristic of thermomechanical pulps and improve the paper quality made from such pulps. The pulp fiber suspension having a consistency of about 3 to 5% is refined at a temperature of 200 to 300.degree.F under low intensity conditions. Optimum pulp development is thus obtained by using the lowest practical intensity at the highest practical operating temperature. -i-