The fluid property dependency on ink jetting characteristics

The piezo ink jet technology has been developed from the traditional desktop printer to the non-traditional industrial application like the color filter patterning process in the TFT-LCD manufacturing industry. The ink jetting technology mechanism is to eject several pico-liter ink droplets through the micron nozzle hole. The industrial ink jet application requires non-traditional ink showing various viscosity and surface tension which are critical to ink jetting. In this study, we investigated the dependency of these fluid properties on ink jetting characteristics using piezo type ink jet printer.