Visual Estimation of Dirt in Paper
Some standards help obtain a particular appearance for a product, with deviations resulting in something noticeably different, even for the end user. This is certainly…
TAPPI T 830-2018: Ink Rub Test of Container Board
Look deep into the ink smattering. Evaluate the smudges, and consider the splotches of ink everywhere. See anything? Maybe look deeper. Does it evoke memories…