Report of the University of Maine at Orono Wet-Pressing Project

摘要

By carrying out an in-depth study of the pressing behavior of one particular type of paper in the laboratory, pilot plant, and mill, a mechanistic computer model that can be used to predict mill press behavior based on laboratory compression tests on the paper was developed. As the data base was broadened by investigating other types of papermaking furnishes, it should eventually be possible to predict press behavior using only the model and generalized correlations based on these data. An important finding of this program is that direct comparisons between laboratory, pilot plant, and mill test results indicate that mill and pilot-plant press impulse is 14 to 22% as effective as laboratory press impulse. This efficiency was referred to as nip efficiency. (ERA citation 08:029827)