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SUNPAP, Scale-Up Nano Particles in Modern Papermaking - page 14 / 21

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NFC Processing: Coating colour consolidation

  • small molecules and nano materials move

with water – > non-uniform surfaces

Coat weight, 10 μm

Penetration depth, 18-20μm

Liquid penetration into hydrophilic membrane between jet and blade, dwell time 30 ms

Membrane,117 μm

  • Liquid phase movement in conventional coating due

to pressure pulses and capillary absorption

Source: Forsström, Pajari. Journal of Pulp and Paper Science 35(2009)3-4, 155-162

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