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Rapid Prototyping of Slot Die Devices for Roll to Roll Production of EL Fibers

Electrical and Computer Engineering Department, Drexel University, Philadelphia, PA 19130, USA
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Academic Editor: Andrea Alù
Materials 2017, 10(6), 594; https://doi.org/10.3390/ma10060594
Received: 27 April 2017 / Revised: 24 May 2017 / Accepted: 26 May 2017 / Published: 29 May 2017
There is a growing interest in fibers supporting optoelectrical properties for textile and wearable display applications. Solution-processed electroluminescent (EL) material systems can be continuously deposited onto fiber or yarn substrates in a roll-to-roll process, making it easy to scale manufacturing. It is important to have precise control over layer deposition to achieve uniform and reliable light emission from these EL fibers. Slot-die coating offers this control and increases the rate of EL fiber production. Here, we report a highly adaptable, cost-effective 3D printing model for developing slot dies used in automatic coating systems. The resulting slot-die coating system enables rapid, reliable production of alternating current powder-based EL (ACPEL) fibers and can be adapted for many material systems. The benefits of this system over dip-coating for roll-to-roll production of EL fibers are demonstrated in this work. View Full-Text
Keywords: electroluminescent; 3D-printing; rapid prototyping; light-emitting fibers; roll-to-roll process electroluminescent; 3D-printing; rapid prototyping; light-emitting fibers; roll-to-roll process
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MDPI and ACS Style

Bellingham, A.; Bromhead, N.; Fontecchio, A. Rapid Prototyping of Slot Die Devices for Roll to Roll Production of EL Fibers. Materials 2017, 10, 594.

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