Abstract
In order to investigate the relation between the conditions of pulping process and the reactivity of pulp (M-W & S-W by Bartunek), five groups of samples (twenty three kinds of Samples) were prepared by controlling cooking time, bleaching time, hydrolysis time and alkali treatment conditions. M-W and S-W were determined on the samples thus obtained and on the eleven commercial pulps.
From the results some discussion were made on the influences of viscosity of unbleached pulp, degradation of cellulose by bleaching and acid hydrolysis, and α-cellulose contained in pulp on the reactivity of pulp (M-W, S-W) are discussed. The values of M-W and S-W of pulp depend not only on the viscosity and the α-cellulose content in pulp, but also on the morphological and the fine structure of pulp.
