T-PAPER presented at FutureSAX Innovation Conference

On June 19, the T-PAPER project was presented as a successful „Ready to Transfer“ Project within the FutureSAX Innovation Conference in Dresden, Saxony. Many guests visited our booth and some new ideas were born for future commercialisation of the technology. Let’s see what happens within the next months. We will keep you updated…

T-Paper presented at XXI. Polygraphical Symposium of Chespa

pmTUC was invited by Chespa to present the current developments of printed electronics and especially the T-Paper project at the XXI. Polygraphical Symposium under the headline „The future starts today“ in Opole, Poland. More than 400 visitors enjoyed a mixed program with technical but also economy and politics related talks.

The presentation of pmTUC was given by Dr. Georg C. Schmidt, project leader, with the title „T-Paper – On the way to roll-to-roll printed loudspeaker paper“. Additionally, a special sounding edition of a coffee-set package incorporating T-Paper was presented for the first time in cooperation with Chespa. This so-called „T-Box“ starts to sound while opening the smart package.

We would like to thank the organizers of the symposium for the opportunity to present our developments to so many guests of Chespa!

T-Paper part of new exhibition

On September 9, the „Neue Papiermuseum Düren“ was reopened in a completely new building with modern architecture and a freshly designed exhibition. The exhibition presents many details about and around paper – and of course not only history and state-of-the-art but also very innovative applications where paper plays an important role. We are proud to be part of this „Vision“ section of the museum with our T-Paper.

With the help of an interactive installation, all visitors can listen to a T-Paper loudspeaker poster and can experience this pmTUC innovation.

Feel free to have a look to the website of the museum.

Photo: Klaus Hollenbeck

T-Book at LOPEC 2018

While the T-Paper crew at pmTUC is continously developing new printing process technology for the R2R realisation of the sounding and sensing paper, our first application demonstrator – the T-Book 2 – will be presented for the second time to a broad audience. This time, the book will be visible (and of course audible) at the LOPEC – the largest fair and conference for printed electronics which takes place at Messe Munich from March 13-15. The T-Book will be presented at the booth of the organic electronic association (OE-A) within a competition for novel printed electronic devices and demonstrators (only March 14-15).

Press Release of OE-A

T-Book 2 surprised at Frankfurter Buchmesse

Where is the sound coming from? Where did you hide the speakers? Sounding paper pages? Impossible!

Just some of the questions we had to answer at Frankfurter Buchmesse last week… After many exciting discussions with many different visitors (publishers, book manufacturers, book sellers, technology scouts, etc.) we can proudly say – our new T-Book 2 has surprised. Despite the heavy busy noise of a huge fare hall surrounding us, the sounding book fascinated everybody. Most important for us, we could catch up many interesting ideas for further improvements and applications.

We would like to thank CPI Deutschland for the great chance to be part of its booth and the warm welcome within the team around Oliver Kranert and Robert Höllein.

Furthermore, we would like to thank the Federal Ministry of Education and Research (BMBF) for financial support. You can find a report on the T-Book on the website of BMBF (in German).

T-Book 2 at Frankfurter Buchmesse

T-Book 2

The first demonstrator of the project T-paper will be presented for the first time at Frankfurter Buchmesse. After the great success of the first generation of our T-Book presented in 2015, we are proud to show the second generation to the professional visitors of the fare now.

You can find us exclusively on Thursday, October 12th 2017, at the booth of CPI Deutschland (Hall 4.0, F73).


Great feedback to press release

After publishing the start of our T-paper project, big media interest could be created. Different newspapers and online portals reporting about the paper-based loudspeakers. Yesterday, Deutschlandfunk broadcasted a story about our developments and interviewed project leader Dr. Georg Schmidt. You can listen to the report here.

Job offers

For the T-paper project we are looking for three scientists interested in supporting our team. You can find the job offers on the website of pmTUC.

Paving the way for a sounding photo book


The Institute for Print and Media Technology at the Chemnitz University of Technology strives to reach the mass market with the printing of paper-speakers – the project is funded by the Federal Ministry of Education and Research (BMBF) with approx. 1,4 million euros.

If the Institute for Print and Media Technology at the Chemnitz University of Technology succeeds, the speaker of the future will be thin as paper and make photo books and packaging sound. In the laboratories of the Chemnitz researchers this is almost real as they already developed the numerously awarded “T-Book” – a large-scale photo book equipped with printed electronic – in 2015. If a page is turned in the “T-Book”, an invisible speaker inside the paper makes sound. “The T-Book is a milestone in the development of printed electronics”, says Prof. Arved C. Hübler, who is managing and promoting this technology trend for 17 years and increases its global importance.

The sonorous innovation from Chemnitz is hitherto manufactured in a semi-automatic single sheet procedure. In the process, normal paper or foils are printed with two layers of conductive organic polymers as electrodes. In between, a piezoelectric layer is incorporated as active element setting the paper or foil into motion. Thus, by air displacement the sound is produced loud and clear. Both sides of the speaker-paper can be color printed. As until now only a single sheet production is possible, the efficiency of this procedure is yet quite low.

That is why the researchers of the Institute for Print and Media Technology take a new line since May 2017 – towards the cost-efficient mass production. Aim of the current project “roll-to-roll printed loudspeaker paper” (short: T-Paper) is to transfer the hitherto single sheet production to a web-based production. “This is supposed to significantly increase the efficiency of the complete manufacturing process in order to address future mass markets such as photo books”, explains project leader Georg C. Schmidt. Furthermore, the optimization of the performance and visual appearance of the speaker paper is planned. “Thus, the possibility arises to fully exploit the potential of the speaker paper and the extension of the application range towards, for example, the field of sensor technology”, Schmidt continues.

The project “T-Paper” is funded within the framework program “Validierung des technologischen und gesellschaftlichen Innovationspotenzials wissenschaftlicher Forschung – VIP+” of the Federal Ministry of Education and Research in the following three years with approx. 1,4 million euros.

Auf dem Weg zum klingenden Fotobuch


Institut für Print- und Medientechnik der TU Chemnitz will mit dem Druck von Papier-Lautsprechern den Massenmarkt erreichen – Bund fördert das Projekt mit rund 1,4 Millionen Euro

Die Lautsprecher der Zukunft werden, wenn es nach dem Institut für Print- und Medientechnik der Technischen Universität Chemnitz geht, dünn wie Papier sein und Verpackungen und Fotobücher zum Klingen bringen. In den Labors der Chemnitzer Forscherinnen und Forscher ist dies nahezu Realität, denn sie entwickelten bereits 2015 das mehrfach ausgezeichnete „T-Book“ – einen großformatigen Bildband, der mit gedruckter Elektronik ausgestattet ist. Blättert man eine Seite um, dann beginnt diese durch einen unsichtbar im Inneren des Blatt Papiers befindlichen Lautsprecher zu tönen. „Das T-Book war und ist ein Meilenstein in der Entwicklung gedruckter Elektronik“, meint Prof. Dr. Arved C. Hübler, unter dessen Leitung dieser Technologietrend bereits seit 17 Jahren vorangetrieben wird und weltweit zunehmend Beachtung findet.

Die klangvolle Innovation aus Chemnitz wird bisher in einer halbautomatischen Einzelbogenfertigung hergestellt. Dabei werden ganz normales Papier oder Folien mit zwei Schichten eines leitfähigen organischen Polymers als Elektroden bedruckt. Dazwischen kommt eine piezoelektrische Schicht als aktives Element, was das Papier oder die Folie in Schwingungen versetzt. Laut und deutlich wird durch die Luftverdrängung der Sound erzeugt. Die beiden Seiten des Lautsprecherpapiers lassen sich farbig bedrucken. Da dies aktuell nur in einzelnen Bögen möglich ist, ist die Effizienz des Verfahrens sehr gering.

Deshalb gehen die Forscher des Instituts für Print- und Medientechnik seit Mai 2017 einen neuen Weg – hin zur kostengünstigen Massenproduktion. Ziel ihres aktuellen Projektes „Rollengedrucktes Lautsprecherpapier“ (kurz: T-Paper) ist es, die aktuelle Bogenherstellung in eine Rollenfertigung zu überführen. „Damit soll die Effizienz des gesamten Herstellungsprozesses erheblich gesteigert werden, um zukünftig beispielsweise Massenmärkte wie Fotobücher adressieren zu können“, berichtet Projektleiter Georg C. Schmidt. Zudem sei geplant, die Leistungsfähigkeit und die Anmutung des Lautsprecherpapiers zu optimieren. „Somit wird die Möglichkeit eröffnet, das Potenzial des Lautsprecherpapiers voll auszunutzen und auch auf weitere Anwendungsbereiche – zum Beispiel im Bereich der Sensorik – auszuweiten“, so Schmidt.

Das Projekt „T-Paper“ wird im Rahmen der Fördermaßnahme „Validierung des technologischen und gesellschaftlichen Innovationspotenzials wissenschaftlicher Forschung – VIP+“ vom Bundesministerium für Bildung und Forschung in den kommenden drei Jahren mit rund 1,4 Millionen Euro gefördert.

von Mario Steinebach, TU Chemnitz

Foto: TU Chemnitz/Uwe Meinhold