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10:49
Planar and Three-Dimensional Printing of Conductive Inks
Published on: December 9, 2011
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Rheological Properties and Inkjet Printability of a Green Silver-Based Conductive Ink for Wearable Flexible Textile
Abdelkrim Boumegnane1,2, Said Douhi2,3, Assia Batine1,2
1Organic Synthesis and Extraction Laboratory (OSEV), Ain Chock's Faculty of Sciences, Hassan II University, Casablanca B.P 5366, Morocco.
Sensors (Basel, Switzerland)
|May 11, 2024
Summary
Researchers developed a novel bio-sourced silver ink for e-textiles using a syringe-based method. This optimized ink enables precise inkjet printing of conductive circuits on fabrics, advancing electronic textile technology.
Area of Science:
- Materials Science
- Textile Engineering
- Nanotechnology
Background:
- E-textile development requires highly conductive inks for precise inkjet printing.
- Current challenges include achieving uniform printing and reliable electrical performance on textiles.
Purpose of the Study:
- To optimize a novel bio-sourced silver ink for inkjet printing on textiles.
- To investigate the relationship between ink composition, rheology, and printing behavior.
- To assess the electrical performance of printed circuits.
Main Methods:
- A syringe-based method was used to develop and optimize a bio-sourced silver ink.
- Na-alginate and polyethylene glycol (PEG) were used as suspension matrices.
- Rheological properties were controlled by adjusting component ratios, and printing behavior was analyzed.
Main Results:
- Ink viscosity was found to depend on Na-alginate and PEG ratios.
- An optimal ink formulation (3 wt.% AgNPs, 20 wt.% Na-alginate, 40 wt.% PEG) enabled printing of 0.1 mm thick conductive lines.
- The printed lines achieved a low resistivity of 8 × 10-3 Ω/cm.
Conclusions:
- The developed bio-sourced silver ink formulation offers optimal rheology for uniform inkjet printing on textiles.
- This research enables the creation of eco-friendly conductive inks for flexible antennas and circuits in e-textiles.
- The findings contribute to the advancement of next-generation electronic textiles.
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