Reliable Wet End Control  in the Production Process, Paper360º September/October 2022

Papermaking is a complex, dynamic process with many possibilities of adjustments and influences in a production plant. Using high-level automation and production monitoring, it is possible to increase the efficiency of the process. Besides other parameters, also monitoring the charge environment—the particle charge and the zeta potential—in the wet end of the paper-making process improves the production efficiency. In such complex systems, this monitoring is extremely important.

Unclear charge conditions can lead to losses in quality of the base or the finished product, disturbances of the production process, and higher cost for additives. A permanent control is especially important if the facility uses different chemical additives meant to ensure a well-functioning production process and certain quality requirements of the base paper and finished product. Having information about the charge conditions available helps to optimize the dosage of additives throughout the complete wet end process and allows the mill technicians and engineers to get a good overview of the status.

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