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2009 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
Investigations on electrohydrodynamical drop-on-demand inkjet printing
Shenzhen, China
January 05-January 08
ISBN: 978-1-4244-4629-2
Yinhong Dai, Dept. of Mechanical and Electrical Engineering, Xiamen University, China, 361005
Donghang Chen, Dept. of Mechanical and Electrical Engineering, Xiamen University, China, 361005
Lingyun Wang, Dept. of Mechanical and Electrical Engineering, Xiamen University, China, 361005
Daoheng Sun, Dept. of Mechanical and Electrical Engineering, Xiamen University, China, 361005
The effects of electrohydrodynamical(EHD) drop-on-demand inkjet variables on the droplet diameter are presented in this paper. The EHD printer uses a high pulsed voltage to generate strong electric field in the vicinity of the apex of the dome-shaped liquid meniscus and thus micro-jetting ejection of droplet comes forth. And the liquid shaping processes are revealed through CCD. The droplets with 50µm diameter were formed on the silicon collector. We have evaluated systematically the effects of EHD inkjet printing design variables such as the voltage, the frequency, the solution concentration, the voltage duty cycle and the contact angle on the droplet diameters. The experiment results show the droplet diameters get larger with the voltage, the solution concentration and the voltage duty cycle increasing respectively. And when the frequency, the contact angle increases respectively, the droplet diameters get smaller.
Citation:
Yinhong Dai, Donghang Chen, Lingyun Wang, Daoheng Sun, "Investigations on electrohydrodynamical drop-on-demand inkjet printing," nems, pp.310-313, 2009 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2009
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