X-ray microtomography and laser ablation in the analysis of ink distribution in coated paper
Myllys, M., Häkkänen, H., Korppi-Tommola, J., Backfolk, K., Sirviö, P., & Timonen, J. (2015). X-ray microtomography and laser ablation in the analysis of ink distribution in coated paper. Journal of Applied Physics, 117(14), Article 144902. https://doi.org/10.1063/1.4916588
Published inJournal of Applied Physics
DisciplineSolu- ja molekyylibiologiaFysiikkaFysikaalinen kemiaNanoscience CenterCell and Molecular BiologyPhysicsPhysical ChemistryNanoscience Center
© 2015 AIP Publishing LLC. Published in this repository with the kind permission of the publisher.
A novel method was developed for studying the ink-paper interface and the structural variations of a deposited layer of ink. Combining high-resolution x-ray tomography with laser ablation, the depth profile of ink (toner), i.e., its varying thickness, could be determined in a paper substrate. X-ray tomography was used to produce the 3D structure of paper with about 1 lm spatial resolution. Laser ablation combined with optical imaging was used to produce the 3D structure of the printed layer of ink on top of that paper with about 70 nm depth resolution. Ablation depth was calibrated with an optical profilometer. It can be concluded that a toner layer on a light-weight-coated paper substrate was strongly perturbed by protruding fibers of the base paper. Such fibers together with the surface topography of the base paper seem to be the major factors that control the leveling of toner and its penetration into a thinly coated paper substrate.
PublisherAmerican Institute of Physics
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