Ink-jet is a dot-matrix printing technology in which the drops of ink are jetted through a small orifice to a specific position on a substrate. The mechanism by which a liquid stream breaks up into droplets was described by Lord Rayleigh in 1878[1]. There are two qualitatively different ink-jet printing methods drop on demand (DOD) and continuous ink-jet printing (CIJ). The underlying mechanism for CIJ printing is breaking a continuous jet into droplets and was ”discovered” first, with first patent of a working practical Rayleigh break-up ink-jet device filed in 1951[5]. The DOD printer, in which we actually ”squirt” a jet of liquid that joins in a drop under surface tension driven forces, was not made until 1977[5]. In this seminar I will try to outline basic governing physics of ink-jet process, current challenges and possible future applications utilizing this technology.
[1]
L. Rayleigh.
On The Instability Of Jets
,
1878
.
[2]
S. Middleman,et al.
Modeling Axisymmetric Flows: Dynamics of Films, Jets, and Drops
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1995
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[3]
J. CLERK MAXWELL,et al.
Statique expérimentale et théorique des Liquides soumis aux seules Forces moléculaires,
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1874,
Nature.
[4]
D. Bousfield,et al.
Nonlinear analysis of the surface tension driven breakup of viscoelastic filaments
,
1986
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[5]
H. Le,et al.
Progress and Trends in Ink-jet Printing Technology
,
1998,
Journal of Imaging Science and Technology.