NC State
G.G. Allan, R. Aravamuthan, C. Christien and M.K. Raghuraman. Chemical modification of pulp refining rates. In Papermaking Raw Materials, Trans. of the VIIIth Fund. Res. Symp. Oxford, 1985, (V. Punton, ed.), pp 879–894, FRC, Manchester, 2018.


It has long been known that certain simple chemicals can either accelerate or retard the rate of refining of pulps. Based on surface adsorption and osmotic pressure considerations, a hypothesis is proposed to provide a rationale for the behavior of these chemicals. The validity of this theory is demonstrated by the prediction of the effectiveness of a colorless, photostable chemical as a new beating aid and the verification of its performance as an accelerator for the refining of both chemical and mechanical pulp as well as secondary fibers.

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