CUED Publications database

A simple criterion for filament break-up in drop-on-demand inkjet printing

Hoath, SD and Jung, S and Hutchings, IM (2013) A simple criterion for filament break-up in drop-on-demand inkjet printing. Physics of Fluids, 25. ISSN 1070-6631

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Abstract

Jets from drop-on-demand inkjet print-heads consist of a main drop with a trailing filament, which either condenses into the main drop, or breaks up into satellite drops. Filament behaviour is quantitatively similar to that of larger, free symmetrical filamentscan be predicted from the aspect ratio and Ohnesorge number. Symmetrical filaments generated from inkjet print-heads show the same behaviour. A simple model, based on competition between the processes of axial shortening and radial necking, predicts the critical aspect ratio below which the jet condenses into a single drop. The success of this simple criterion supports the underlying physical model. © 2013 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 11 Dec 2014 19:02
DOI: 10.1063/1.4790193