A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications


Wei, Yang, Torah, Russel, Yang, Kai, Beeby, Steve and Tudor, John (2013) A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications Sensors and Actuators A: Physical, 203, pp. 241-248. (doi:10.1016/j.sna.2013.08.041).

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Description/Abstract

Freestanding cantilevers have been fabricated by screen printing sacrificial and structural layers onto a standard polyester cotton fabric. By screen printing additional conductive and piezoelectric layers on to the cantilever it is possible to detect its displacement due to the movement of the underlying fabric. This type of freestanding structure cannot currently be fabricated using more conventional smart fabric manufacturing processes (e.g. weaving and knitting). Compared to such processes, screen printing offers the advantages of geometric design flexibility and the ability to simultaneously print multiple devices of the same or different designs. Furthermore, an expanding range of active inks exists from the printed electronics industry which can potentially be applied to create many types of smart fabric.

To demonstrate the potential of this technology, a six-layer structure design has been printed onto fabric using a sacrificial material underneath the cantilever. The sacrificial layer is subsequently removed at 160 °C for 30 min to achieve a freestanding cantilever above the fabric. The devices have been worn on a human forearm and connected to a charge amplifier provided an example of simple motion detection.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.sna.2013.08.041
Keywords: sacrificial technology, smart fabrics, free standing cantilever, screen printing
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Organisations: EEE
ePrint ID: 358214
Date :
Date Event
September 2013e-pub ahead of print
1 December 2013Published
Date Deposited: 09 Oct 2013 12:33
Last Modified: 23 Feb 2017 02:29
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/358214

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