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Polytos project to employ printed electronics for smart label development



Published July 7, 2009
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Merck KGaA has announced the launch of the printed organic switches and chips project – Polytos – together with its partners in the cluster known as the Forum Organic Electronics. The aim of the project, which is sponsored by the German Federal Ministry of Education and Research and conducted by a consortium headed by Merck, is to develop new materials, concepts, components, manufacturing processes, and software for printed organic circuits with integrated sensors for applications in the packaging industry. These systems could some day be used as printed smart labels, namely intelligent and flexible transponders that are applied to a film together with their antenna and can transmit information. They are primarily used in the logistics and packaging sectors.

Aside from Merck, the consortium partners involved in the project are BASF (Ludwigshafen), Pepperl+Fuchs (Mannheim), PolyIC (Fürth), Robert Bosch (Stuttgart), and SAP (Walldorf), as well as the University of Heidelberg, the Technical University of Darmstadt and the University of Mannheim. Copaco (Mainz), Innovation Lab (Heidelberg) and VARTA Microbattery (Ellwangen) are associate partners.

The consortium partners are aiming to complete the first basic demonstrators in a three-year period. The total costs of Polytos will amount to around €13.8 million. The German Federal Ministry of Education and Research will provide funding of around €7.2 million; the industry partners will contribute around €6.6 million themselves.

The object of Polytos is to develop printed organic circuits with integrated sensors capable of recording data such as temperature, humidity or light exposure. Interfaces are used to read this information. These types of printed organic circuits could be used as printed smart labels in the future. Smart labels are already used today in the packaging of pharmaceutical products, other high quality products such as luxury goods, or critical care products such as those used for blood transfusions.

Smart label technologies available today have numerous economic and technical problems that severely limit their usability. In particular, high implementation and operating costs prevent their wide-scale application. For example, radio frequency identification (RFID) tags are typically used only for larger packaging volumes (e.g. palettes) in logistic processes. They are only equipped with sensors in a very few number of selected applications. More complex smart labels are capable of recording environmental parameters, yet their application is extremely expensive.

The smart labels being developed by Polytos are based on organic electronics, thereby making cost-effective production via printing processes possible. This makes them economical and efficient in production as they can be applied using mass-production techniques.





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