Comparison of Models for Gravure Ink Mileage Curves

Abstract

Ink mileage curves have been studied for many years. Several models for curve fitting have been reported by different researchers. The regression coefficients derived from curve fitting were found to be very useful for comparing different inks and were related to some properties of ink and paper. However, these models were based on the experimental data of prints made on IGT and/or Prufbau printability tester using offset inks. The quantity of transferred ink, and hence the amount of ink on paper, was determined by the weight difference of theprinting disc before and after printing. Therefore, these models cannot be applied to the ink mileage behavior of other ink types, nor on commercial printing presses.