MULTIDIMENSIONAL PSYCHOPHYSICS: SURFACE FEEL OF PRINTING PAPER AS A FUNCTION OF PHYSICAL PROPERTIES
AbstractThe aim of this experiment was to explore the perception of tactile surface-feel of 21 printingpapers. A multidimensional scaling (MDS) experiment was conducted with 20 women. Theyscaled similarity among all possible pairs of the papers. Similarity measurements weremapped by INDSCAL and modeled with PREFMAP. Test-retest and concordance coefficientswere high. It is not yet established what physical properties best determine tactile feel. Itseems likely though that finger friction and surface roughness are strong contenders. Fingerfriction for the papers was measured as a ratio of friction force to normal force; while strokinga human finger on the surface. Average surface roughness was measured with a profilometer.Physical properties were rotated into the 3D INDSCAL solution. This solution identifiedand mapped the tactile surface feel of the papers in an interpretable way with regard toi.e. friction, surface roughness and weight.