K&N; ABSORPTION TEST

A test that reveals the surface absorption characteristics of paper. The test involves applying a thick film of special ink to the substrate and waiting for dies in the ink to soak into the paper surface. When the ink is later wiped-off, the stain left behind reveals how much absoption took place, and how uniform the paper surface is. Sections of the ink can be wiped-off at different times, and the stains read by a densitometer, to better understand the “rate” of absorption. The Graphic Ink Lab can perform the K&N absorption test.