Conference Program - LOPE-C 2011

SCIENTIFIC CONF. | THURSDAY-JUNE 30, 2011
Track 5
Novel Process Concepts (04:30 pm - 06:00 pm) | LOCATION HARMONIE E / LEVEL C2
04:30 pm Inkjet Printing of Functional Materials on Selectively Plasma Treated Surfaces
Mr Martijn van Dongen,
Fontys University of Applied Sciences, PhD-student, Netherlands
The Fontys Expertise Centre of Functional Polymers is a research centre which focuses among others on inkjet printing of functional materials for organic electronics. A
large part of this research is directed to understanding the wetting behaviour of these materials on foils. µPlasma printing is a newly developed technology from InnoPhysics
b.v.. µPlasma printing makes it possible to selectively change the wetting behaviour of substrates by integrating a multinozzle plasma printhead in an inkjet printer base
system. By combining this technology with digital on demand printing techniques, like inkjet printing, new possibilities arise. Through selective changing local wetting
behaviour on a substrate and inkjet printing on the plasma treated surface, it should be possible to print more accurate patterns with sharper lines and higher resolution.
This paper will discuss two on-going investigations. First we will discuss a method to determine the resolution of a µPlasma printed single line. A method is devised to
accurately determine the linewidth of a µPlasma printed single line for different plastic substrates and plasma doses. By looking at localized changes in wetting behaviour,
using accurate drop placement from inkjet printing, the µPlasma print resolution will be determined. The second investigation looks at the alignment of µPlasma printed
patterns together with inkjet printed patterns. The wetting behaviour of functional inks at the interface of a plasma treated / untreated surfaces is investigated to determine if
plasma treatment benefits sharper and more accurate patterns for inkjet printing.
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