Cognis39 Seclarin Unit Optimizes Bleaching Process

The Netherlands-based Cognis Textile Technology has joined forces with a switching equipment
manufacturer to develop the Seclarin® DOS-CON unit. The instrument uses the principle of cyclic
two-point calibration for continuous, on-line measurement of sodium hydroxide (NaOH) and hydrogen
peroxide (H2O2) concentrations in bleaching baths. The system then automatically corrects any
fluctuations measured by sending out command signals to the dosing equipment.The unit features
selective H2O2 molecule and Na+ ion sensors with a modular design, permitting adaptation to many
existing dosing systems.

October 2001