Application of a New Fiber and Filler Retention Monitoring System at a Fine Paper Mill

Abstract

The paper introduces a new continuous retention monitoritoring system capable to measure the first-pass retention of fibers or total solids and filler separately. The system consists of optical sensors installed in the headbox and white water lines and a central unit where the calculations are carried out. Both filler and total consistencies in each line as well as the corresponding first-pass retention values are available for further processing.