Analysis of Wetting and Coalescing Behavior of Minute Ink Droplets by MPS Simulation

To obtain the desired images from inkjet printers, it is important to control the coalescing and wetting behaviors of the ink droplets. However, predicting these behaviors quantitatively through an experimental approach is difficult because of the speed and the minuteness of such phenomenon. Therefore, the establishment of a simulation technology to predict these behaviors is in demand. In this study, an MPS simulation method was developed based on a particle method that considered the effect of surface tension acting on the liquid-liquid and liquid-solid interfaces. Quantitative prediction of the coalescing and wetting behaviors was made possible using this technology.