Dr. Gil Hawkins
Eastman Kodak
BSAC Member
October 28, 2008 | 12:30 to 01:30 | 521 Cory Hall, Hogan Room
The tendency of fluid jets to break into droplets of multiple sizes has been known since the times of Lord Rayleigh. However the ability to precisely make and control picoliter-sized droplets from arrays comprising thousands of jets at megahertz frequencies has come only recently, due to the availability of MEMS manufacturing facilities and to the recognition of the importance of such arrays to variable data printing. We describe a new inkjet printing technology based on thermally the stimulated breakup of jets of complex fluids that allows variable data printing to move into high-speed, “offset class†markets. Understanding the physics of microjet instabilities enables the design and fabrication of the key MEMS components.
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