Friction between different papers, inkjet and laser prints were investigated experimentally. Static (SCOF) and kinetic (KCOF) friction coefficients between paper and paper, paper and prints, prints and prints were determined. The highest friction is between prints and prints and lowest is between paper and paper. The dependence of the SCOF and KCOF on pressure (both decrease) together with the roughness measurements enables to conclude that friction of prints is governed mainly by the adhesion forces.
S. Grigaliūniene, J. Sidaravičius, V. Turla, "Friction Properties of Laser and Inkjet Prints" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP30), 2014, pp 268 - 271, https://doi.org/10.2352/ISSN.2169-4451.2014.30.1.art00065_1