| During the process of ink-jet printing, due to the ink spreading and penetrating on the paper, as well as the light scattering of paper, the dots on the prints are changed. Among others, paper and ink are the major factors causing the change. The theories of optical dot gain, ink sprawl and permeation are elaborated in this paper, the influences of them on dot gain in ink-jet printing are studied, the original Murry-Davis formula, Youngs equation and Washburn formula are amended. New models and formulas are obtained, and the rationality of the model is testified by experiments, which offers reference model and theoretical basis to the further quality control in ink-jet printing. |
