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

A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications
A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications
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.
sacrificial technology, smart fabrics, free standing cantilever, screen printing
0924-4247
241-248
Wei, Yang
c6d13914-4f35-459c-8c25-8f8b77b7c5b3
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Yang, Kai
f1c9b81d-e821-47eb-a69e-b3bc419de9c7
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
Wei, Yang
c6d13914-4f35-459c-8c25-8f8b77b7c5b3
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Yang, Kai
f1c9b81d-e821-47eb-a69e-b3bc419de9c7
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff

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, 241-248. (doi:10.1016/j.sna.2013.08.041).

Record type: Article

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.

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More information

e-pub ahead of print date: September 2013
Published date: 1 December 2013
Keywords: sacrificial technology, smart fabrics, free standing cantilever, screen printing
Organisations: EEE

Identifiers

Local EPrints ID: 358214
URI: https://eprints.soton.ac.uk/id/eprint/358214
ISSN: 0924-4247
PURE UUID: f4ddaaf9-8a22-41e9-b221-6df9b1ca362c
ORCID for Yang Wei: ORCID iD orcid.org/0000-0001-6195-8595
ORCID for Russel Torah: ORCID iD orcid.org/0000-0002-5598-2860
ORCID for Steve Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 09 Oct 2013 12:33
Last modified: 18 Jul 2017 03:31

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Contributors

Author: Yang Wei ORCID iD
Author: Russel Torah ORCID iD
Author: Kai Yang
Author: Steve Beeby ORCID iD
Author: John Tudor

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