Frequent breaks of the paper strips at the paper machine lead to losses of material, water and energy and to reduced productivity. Solution is to improve quality of white water by reducing biological deposits.This will be achieved through replacing biocides by new chemicals and small amendments of the existing technology.
Replacement of Puddle size press by Rod technique. Size of openings in the screen and its setting for particular filtration purposes is essential to achieve the self-cleaning effect. Then, the Rod could be used instead of sizing without metering, just controlled by absorptivity of paper (the puddle process). Resulting higher solids content decreases the amount energy needed for consequent drying.