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Volume: 22 | Article ID: art00024_1
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Jet Formation and Late-Stage Ligament Instability in Drop-on-Demand Printing
Graham D. Martin
Ian M. Hutchings
Stephen D. Hoath
  DOI :  10.2352/ISSN.2169-4451.2006.22.1.art00024_1  Published Online :  January 2006
Abstract

High-resolution, short flash duration photography (with flash duration of 20 ns) has been used to determine the profiles of emergent jets from a drop-on-demand print-head. By quantitatively analysing these profiles the development of fluid flows and velocities within the evolving jet can be followed.Various features of the forming drop and ligament have been examined in some detail. This close observation shows that the ligament forms in a characteristic cone shape which is disturbed at later stages by the end of the ligament moving away from the centre of the nozzle and by the bunching of material within the tail leading to break off and satellite formation.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/ISSN.2169-4451.2006.22.1.art00024_1
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Graham D. Martin, Ian M. Hutchings, Stephen D. Hoath, "Jet Formation and Late-Stage Ligament Instability in Drop-on-Demand Printing"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP22),  2006,  pp 95 - 98,  https://doi.org/10.2352/ISSN.2169-4451.2006.22.1.art00024_1

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Copyright © Society for Imaging Science and Technology 2006
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NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20060101)2006:1L.95;1-
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Articles
Jet Formation and Late-Stage Ligament Instability in Drop-on-Demand Printing
MartinGraham D.
HutchingsIan M.
HoathStephen D.
01012006
2006
1
95
98
2006
High-resolution, short flash duration photography (with flash duration of 20 ns) has been used to determine the profiles of emergent jets from a drop-on-demand print-head. By quantitatively analysing these profiles the development of fluid flows and velocities within the evolving jet can be followed.Various features of the forming drop and ligament have been examined in some detail. This close observation shows that the ligament forms in a characteristic cone shape which is disturbed at later stages by the end of the ligament moving away from the centre of the nozzle and by the bunching of material within the tail leading to break off and satellite formation.