Browsing School of Technology by Author "Hoath, Stephen Daniel"
Now showing items 1-10 of 10
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Aerodynamic effects in ink-jet printing on a moving web
Hsiao, W-K; Hoath, Stephen Daniel; Martin, Graham Dagnall; Hutchings, Ian Michael (2012)
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Dependence of drop speed on nozzle diameter, viscosity and drive amplitude in drop-on-demand ink-jet printing
Hoath, Stephen Daniel; Hsiao, W-K; Jung, Sungjune; Martin, Graham Dagnall; Hutchings, Ian Michael (Proc 27th Int. Conf. on Digital Printing Technologies, NIP27, 2011)Results of recent experiments and numerical simulations are presented, which have been used to establish empirical rules for the dependence of drop speed on nozzle diameter and drive amplitude for Newtonian and non-Newtonian ...
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How PEDOT:PSS solutions produce satellite-free inkjets
Hoath, Stephen Daniel; Jung, S-J; Hsiao, W-K; Hutchings, Ian Michael (2012)
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Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media
Hsiao, W-K; Hoath, Stephen Daniel; Martin, GD; Hutchings, Ian Michael; Chilton, NB; Jones, S (Nanotech, 2011-06)Ink-jet printing of nano-metallic colloidal fluids on to porous media such as coated papers has become a viable method to produce conductive tracks for low-cost, disposable printed electronic devices. However, the formation ...
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Jetting behaviour of polymer solutions in drop-on-demand inkjet printing
Hoath, Stephen Daniel; Harlen, OG; Hutchings, Ian Michael (2012)
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Jetting, In-Nozzle Meniscus Motion and Nozzle-Plate Flooding in an Industrial Drop-on-Demand Print Head
Hsiao, W-K; Hoath, Stephen Daniel; Martin, Graham Dagnall; Hutchings, Ian Michael (Proc 27th Int. Conf. on Digital Printing Technologies, NIP27, 2011)The state of the ink film at and near the nozzles of a drop-ondemand(DoD) print head during jetting has a direct impact on printing performance and reliability. We have developed highspeed imaging apparatus and analytical ...
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Regimes of polymer behaviour in drop-on-demand ink-jetting
Hoath, Stephen Daniel; Hutchings, Ian Michael; Harlen, OG; McIIroy, C; Morrison, NF (2012)
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The effect of inkjet ink composition on rheology and jetting behaviour
Vadillo, Damien; Hoath, Stephen Daniel; Hsiao, W-K; Mackley, MR (Proc 27th Int. Conf. on Digital Printing Technologies, 2011)This work presents recent results on the way linear and non linear viscoelastic properties of the fluids affect the jetting mechanism. Recent progress on quantitative characterising both high frequency linear (LVE) and ...
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Ultra-High Speed Particle Image Velocimetry on Drop-on-Demand Jetting
Castrejon-Pita, Jose Rafael; Hoath, Stephen Daniel; Castrejon-Pita, Alfonso Arturo; Morrison, NF; Hsiao, Wen-Kai; Hutchings, Ian Michael (Proc 27th Int. Conf. on Digital Printing Technologies NIP27, 2011)An experimental setup to study the dynamics of droplet jetting from a commercially available print-head is described. A MicroFab print-head with an 80 µm diameter transparent nozzle was set to print droplets at a speed ...
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Velocity Profiles in a Cylindrical Liquid Jet by Reconstructed Velocimetry
Castrejon-Pita, Jose Rafael; Hoath, Stephen Daniel; Hutchings, Ian Michael (2012)