New insights on how ink sticks to paper

Researchers at the University of Jyvaskyla in Finland have found a new way to examine the ancient art of putting ink to paper. The technique could improve scientists' understanding of how ink sticks to paper and ultimately lead to higher quality, less expensive and more environmentally-friendly printed products.
The researchers created a nano-scale map of the varying thickness of toner ink on paper. They discovered that wood fibers protruding from the paper received relatively thin coatings of ink and that the toner thickness was dictated mainly by local changes in roughness. An article about the research is published in the Journal of Applied Physics (Press Release AIP, 14 April 2015).
Click here for the press release.
Click here for the published article (1.62 MB).
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