Browsing School of Technology by Author "Hoath, Stephen Daniel"
Now showing items 1-10 of 10
-
-
Dependence of drop speed on nozzle diameter, viscosity and drive amplitude in drop-on-demand ink-jet printing
(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 ...
-
-
Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media
(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 ...
-
-
Jetting, In-Nozzle Meniscus Motion and Nozzle-Plate Flooding in an Industrial Drop-on-Demand Print Head
(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 ...
-
-
The effect of inkjet ink composition on rheology and jetting behaviour
(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 ...
-
Ultra-High Speed Particle Image Velocimetry on Drop-on-Demand Jetting
(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 ...
-