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This project was started to speed up the evaluation of catalytic samples prepared at the division of Chemical Technology, Luleå University of Technology (LTU). Samples had previously been sent to University of Cape Town (UCT) for testing but there was a need
This thesis presents the main results of a laboratory investigation of the mode of dewatering of wet paper webs during an impulse pressing event. We tried to study this issue by two independent sets of experiments performed on a laboratory press simulator.
Fibres become curled during high consistency treatments in the pulp mill. This changes the properties of paper, for instance it is belived that the shrinkage during drying is increased. The drying shrinkage is an important factor to control, one reason is that
Stiffer fibres with improved resilience could lead to improvements for example in the fluff pulp area. Fluff pulp in absorbent products often collapse in a wet state at repeated insults. The products are also compressed for ease of handling and lowering the