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Evolutions in food packaging printing

You are here: Conferences & Events * 2011 Budapest * Abstracts * 3. Special Printing Applications

3. Special Printing Applications

3.04 Gravure printing of thick film electrodes for PEM fuel cell production

Frank Siegel, Albert Kohl, Eugen Enns, Wolfgang Deger, Holger Dziallas, Andreas Willert, Reinhard R. Baumann


Abstract
A major environmental friendly alternative to traditional fossil fuels based power sources are Proton-Exchange-Membrane Fuel Cells (PEMFCs) converting hydrogen and oxygen into water by yielding an electric current. The electrochemically active component of these fuel cells, the membrane electrode assembly (MEA), has been manufactured following mainly batch process workflows or slow film creation technologies. This paper presents recent results on combining the benefits of gravure printing and gravure coating to achieve thick material layers for the fabrication of catalytic electrodes for the MEAs of Proton-Exchange-Membrane Fuel Cells (PEMFCs).


Keywords: gravure printing, layer thickness, fuel cell, PEMFC, functional printing, membrane electrode assembly (MEA)
Contact: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 

3.05 UHF RFID antenna printing on offset paper substrate using Inkjet and screen-printing technologies

Markus J. Müller, Susana Otero, Vicente de Gracia


Abstract
The demand from the world leaders in retail business has made RFID (Radio Frequency Identification) increasingly popular for product tracking applications. As noted in Wall Street Journal, RFID “will be in every product imaginable”, and will replace barcodes and magnetic strips.

This situation has been driving both product manufacturers and packaging suppliers to be ready for RFID implementation. While RFID technology was being developed to satisfy its rapidly growing market, the application cost turned to be a serious problem. The responsibility for RFID tagging application would, sooner or later, be shifted to packaging suppliers because of its complication and additional cost. Packaging manufacturers should be aware. Once being asked by customers for RFID, an efficient way was to provide it with an affordable cost at a minimal price. At the moment, many technologies have been studied to overcome the cost barriers. One among them was “printed RFID” technology.

Conductive ink would allow packaging printers to print RFID-antenna directly on the packaging substrates and attaching microchips in-line. RFID integration into packaging would significantly reduce the cost of RFID implementation in mass production because it would eliminate the needs for labels and the manual “slapping” (attaching) process.

The goal of this research is basically to study the performance of inkjet- and screen-printed RFID-antennas on fibre based packaging substrate and to work out processing parameters to improve the performance of the antennas just by set up different printing or process parameters.


Keywords: printed electronics, RFID antenna, inkjet printing, screen printing, nano silver ink, sintering process
Contact: mjohannes@aido.e

 

3.06 Optimization of aperture size and distance in the insulating mask of a five layer vertical stack forming a fully printed thermoelectric generator

Andreas Willfahrt, Gunter Hübner


Abstract
Printed thermoelectric generators (TEG) combine the advantages of screen printing with the uncomplicated assembly and reliability of thermoelectric devices. Successively printed layers on top of each other are needed for a completed device in a vertical stack setup. One of the challenging layers is the insulating mask which provides cavities for the thermoelectric legs. By governing the thickness of this insulating mask the overall thickness of the TEG is determined, too. The spatial separation is a necessity for reasonable energy conversion efficiency.


Keywords: thermoelectric generators (TEG), insulating mask, energy conversion
Contact: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 
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