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Development of a screen printable carbon paste to achieve washable conductive textiles

Development of a screen printable carbon paste to achieve washable conductive textiles
Development of a screen printable carbon paste to achieve washable conductive textiles
Conductive tracks are key constituents of wearable electronics and e-textiles, as they form the interconnective links between wearable electrical devices/systems. They are made by coating or printing conductive patterns or tracks on textiles or by weaving, knitting, or embroidering conductive yarns into textiles. Screen printing is a mature and cost-effective fabrication method that is used in the textile industry. It allows a high degree of geometric freedom for the design of conductive patterns or tracks. Current screen-printed conductive textiles have the limitations of low durability when washed or when placed under bending, and they typically require encapsulation layers to protect the printed conductor. This paper presents a printable paste formulation and fabrication process based on screen printing for achieving a flexible and durable conductive polyester-cotton textile using an inexpensive carbon as the conductor. The process does not require an interface, the smoothing of the textile, or an encapsulation layer to protect the conductor on the textile. A resistivity of 4 × 10−2 Ω·m was achieved. The textile remains conductive after 20 standard washes, resulting in the conductor’s resistance increasing by 140%. The conductive textile demonstrated less than ±10% resistance variation after bending for 2000 cycles

Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Liu, Meijing
5aaf1609-e69d-4fe0-8dcf-9fe53a0fa6d7
Komolafe, Abiodun
5e79fbab-38be-4a64-94d5-867a94690932
Tudor, Michael
46eea408-2246-4aa0-8b44-86169ed601ff
Yang, Kai
f1c9b81d-e821-47eb-a69e-b3bc419de9c7
Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Liu, Meijing
5aaf1609-e69d-4fe0-8dcf-9fe53a0fa6d7
Komolafe, Abiodun
5e79fbab-38be-4a64-94d5-867a94690932
Tudor, Michael
46eea408-2246-4aa0-8b44-86169ed601ff
Yang, Kai
f1c9b81d-e821-47eb-a69e-b3bc419de9c7

Yong, Sheng, Liu, Meijing, Komolafe, Abiodun, Tudor, Michael and Yang, Kai (2021) Development of a screen printable carbon paste to achieve washable conductive textiles. 14 pp . (doi:10.3390/textiles1030022).

Record type: Conference or Workshop Item (Paper)

Abstract

Conductive tracks are key constituents of wearable electronics and e-textiles, as they form the interconnective links between wearable electrical devices/systems. They are made by coating or printing conductive patterns or tracks on textiles or by weaving, knitting, or embroidering conductive yarns into textiles. Screen printing is a mature and cost-effective fabrication method that is used in the textile industry. It allows a high degree of geometric freedom for the design of conductive patterns or tracks. Current screen-printed conductive textiles have the limitations of low durability when washed or when placed under bending, and they typically require encapsulation layers to protect the printed conductor. This paper presents a printable paste formulation and fabrication process based on screen printing for achieving a flexible and durable conductive polyester-cotton textile using an inexpensive carbon as the conductor. The process does not require an interface, the smoothing of the textile, or an encapsulation layer to protect the conductor on the textile. A resistivity of 4 × 10−2 Ω·m was achieved. The textile remains conductive after 20 standard washes, resulting in the conductor’s resistance increasing by 140%. The conductive textile demonstrated less than ±10% resistance variation after bending for 2000 cycles

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textiles-01-00022-v2 - Version of Record
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More information

Accepted/In Press date: 20 September 2021
Published date: 5 October 2021

Identifiers

Local EPrints ID: 452726
URI: http://eprints.soton.ac.uk/id/eprint/452726
PURE UUID: 25cdd78f-cbcc-4335-a3e2-d2d2035aa9bf
ORCID for Sheng Yong: ORCID iD orcid.org/0000-0002-8588-5981
ORCID for Meijing Liu: ORCID iD orcid.org/0000-0001-8334-7533
ORCID for Michael Tudor: ORCID iD orcid.org/0000-0003-1179-9455
ORCID for Kai Yang: ORCID iD orcid.org/0000-0001-7497-3911

Catalogue record

Date deposited: 16 Dec 2021 17:42
Last modified: 31 Mar 2022 01:43

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Contributors

Author: Sheng Yong ORCID iD
Author: Meijing Liu ORCID iD
Author: Abiodun Komolafe
Author: Michael Tudor ORCID iD
Author: Kai Yang ORCID iD

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