Liquid spreading on ink-jet paper evaluated by the hydrodynamic and molecular-kinetic models

J. Järnström*, M. Järn, C. M. Tåg, J. Peltonen, J. B. Rosenholm

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)


The dynamic surface wetting kinetics of sessile water and ethylene glycol droplets deposited on ink-jet papers was studied. The hydrodynamic and molecular-kinetic models were used for data analysis and the results were compared with each other. Hoffman-Tanner plots gave good linear fits with experimental data, but only the low velocity linear data fit correlated well with experimentally determined pseudo-equilibrium contact angles. The molecular-kinetic model gave a good non-linear fit with experimental data and produced physically meaningful values for the molecular parameters. A high rate wetting phase was found for some liquid-paper sample systems, which was correlated to capillary flow in 'micro-crack' surface structures. Deviation in low rate wetting behaviour from the hydrodynamic and molecular-kinetic models cannot solely be explained by surface structure and roughness. Consequently, it can be assumed that surface chemistry has a significant effect on wetting dynamics.

Original languageEnglish
Pages (from-to)761-779
Number of pages19
JournalJournal of Adhesion Science and Technology
Issue number6-7
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed


  • Surface spreading
  • ink-jet paper
  • hydrodynamic model
  • molecular-kinetic model


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