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Lehrstuhl für Makromolekulare Stoffe und Faserchemie |
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Prof. Dr. Michael R. Buchmeiser |
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The integration of electrical devices into textiles is an attractive but highly challenging task. Generally, electronic structures on textiles can be
prepared by weaving or sewing of functional fibers on fabrics, alternatively, lamination processes with conventional electrical devices can be applied.[1]
However, these are cost-intensive processes and printing of electrical components represents an attractive alternative. Recent developments in printed
electronics have opened the door for new flexible and low-cost thin-film devices [2] [3] [4]. Various printing methods can be applied in order to fabricate
printed electronics, such as screen printing, flexography, offset lithography or inkjet printing. Inkjet printing offers a number of advantages since
it is a digital nonimpact printing technology and therefore no special templates have to be prepared. Hence it is suitable for smaller lot sizes or
special products, which are interesting for the creation of high-end/low price textile products.  Scheme: Overview of the printing process on textile fabrics. Such special products could be used for technical textiles, which include geotextiles, filter materials, composite materials, automotive applications or medical textiles. Within that context, different kinds of sensors for gas, strain, temperature or moisture and heating elements represent interesting applications. Other applications are in the field of "intelligent textiles" including "wearable electronics" such as sensors, lighting devices, resistive heaters, flexible displays and solar cells. We are working on the development of special water-based, non-toxic, solvent-free, green inks, which allow for the production of low-cost electronic devices on textile fabrics. Additionally, special pretreatments and foils for lamination with ink-receiving layers are under development.    Figure: Electroluminescent print pattern on a textile fabric (left). Silver print on a textile fabric (middle). Interdigital structure printed on a textile fabric: without pretreatment and with pretreatment (right). References: [1] X. Tao, Wearable electronics and photonics, Woodhead Publishing, Cambridge England, 2005. [2] A. Bok, D. Lorang, J. Lewis, J. Nanoscale 2011, 3, 2700-2702. [3] L. Hu, M. Pasta, F. La Mantia, L. Cui, S. Jeong, H. Deshazer, J. Choi, S. Han, Y. Cui Nano Lett. 2010, 10, 708-714. [4] A. Dennulin, A. Blayo, C. Neumann, J. Bras J. Nano. Res. 2011, 13, 3815-3823. 
All research topics |
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Letzte Änderung 28.08.2012
( JP) | © Universität Stuttgart |
Impressum |