Hydrodynamics challenges in inkjet printing<br/><br/>

Wednesday, December 9, 2009 - 9:40am - 10:20am
EE/CS 3-180
Detlef Lohse (Universiteit Twente)
Keywords: inkjet printing, bubbles, drop formation, air entrainment, impact

Piezo-acoustic inkjet printing has become a mature technique for high performance printing. Nevertheless, there are still various scientific challenges. In this overview talk I will cover some of them:

(i) Coupling between the fluid dynamics and the acoustics, in particular when a disturbing bubble has been entrained in the ink channel.

(ii) Optical and acoustical monitoring of the bubble.

(iii) Mechanisms of the bubble entrainment.

(iv) Droplet formation and pinch-off of droplets.

(v) Droplet impact on substrates.

Main further contributors to the research: Jos de Jong, Roger Jeurissen, Arjan van der Bos, Michel Versluis, and the colleagues from Oce Technologies: Hans Reinten, Herman Wijshoff, and Marc van der Berg.
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