Abstract
The penetration of ink into the paper affects the final appearance of printing and the amount of ink usage. The main aim of this experiment was to investigate the efficiency of coating speed on surface properties and ink penetration and to characterize the penetration depth through quantitative analysis by laser scanning confocal microscope (LSCM). The results indicated that the surface properties of coated paper could be adjusted and improved by increasing the coating speed. With the increasing of coating speed, ink penetration depth declined and ink penetration uniformity increased. It could be concluded that the coated paper with high coating speed compared with low coating speed resulted in lower ink usage and better printability on the condition of same print density.
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