PULP

摘要

Dry wood pulp is prepared by thermomechanically pulping wood chips and drying the pulp so formed by contacting it with a gas at a temperature of 300-600.degree.C in or at the entry of a high turbulence mixer through which the pulp and hot gas pass and which exerts a shearing action on the pulp to separate fibre bundles in the pulp. The ratio of moisture to dry wood solids is maintained at less than 5:1 throughout the process. The pulp is suitable for use as fluffing pulp or can be used to directly feed a dry forming paper-making or board-making process.