The novel technique is used to measure the pressure profile of a thin viscous film (i.e. coating suspension) in the nip between a soft viscoelastic roll and a smooth metal rod. We have studied the influence of the components, the solids content and the viscosity of the coating suspension on the measured nip pressure profile during different process conditions.
- paper industry
- measuring methods
- control equipment
Poranen, J., Kataja, M., Niemistö, A., & Grön, J. (2000). A method for measuring and controlling the pressure in the metering nip of a metering size press coating process. Nordic Pulp and Paper Research Journal, 15(5), 486-493. https://doi.org/10.3183/NPPRJ-2000-15-05-p486-493