EFFECT OF DRYING ON PULP & PAPER PROPERTIES: A BIBLIOGRAPHY

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Abstract
Papermaking is a massive dehydration operation. Thermal removal of moisture which can not be removed mechanically is a key process stage in papermaking. It is well known that it is a highly energy intensive step. However, it is less readily recognized that it also influences some of the most important physical, optical or functional properties of the product. With the advent of new drying technologies- some already commercialized while some still at pilot or laboratory stage - it is increasingly important to devote attention to the interaction between the drying conditions and the final product quality as measured by generally accepted standard test results. Aside from the drying parameters one must also examine paper/pulp parameters in the hope of achieving in the long term some predictive capability as well as drying-quality effects. This bibliography is selective in coverage and is compiled to ease the task of the interested reader in locating appropriate references covering his/her areas of interest.. Some general observations are made on the basis of the literature cited. important problem.This is influenced by the composition and characteristics of the coating colour and raw stock and also by the type and rate of drying. The following selected bibliography covers the effect of drying on pulp, paper and paperboard properties. Some available literature on coated paper drying is also included. It is encouraging to note a trend towards considering the effect of drying on the product quality as an integral part of drying R&D projects. Earlier, the drying work was confined to optimising only the heat and mass transfer parameters. It should be noted also that this bibliography includes a substantial number of publications which are not in english. The availability of their translations into english is not known to the authors. It is noteworthy that an international symposium - The Helsinki Symposium on Alternate Drying Technologies will be held in Helsinki in June 1991 to discuss the competing new drying technologies from the papermakers viewpoint.