Abstract:

Taking nano capsulated pigment as the colorant, the surfactant, humectant , comonomer, injection voltage and waveform which could affect the formation and injection performance of the droplet were studied.Experimental results showed that lower surface tension made the droplet easier to leave the nozzle and formed filaments and satellites;humectant and comonomer might increase the viscosity which could reduce droplet speed and restrain satellites ;when injection voltage was within a certain range, satellites could catch up with main droplet;the proper waveform for inks in squeeze-mode piezoelectric was another key factor to inkjet printing .In addition, low surface tension and high viscosity can reduce injection angle, then satellites could catch up with main droplet easily.