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Nozzle Wetting Dynamics on Inkjet Printhead and its Impact on Jetting

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As the drop formation from the inkjet nozzle strongly depends on the meniscus shape and position, how inks wet around and inside the nozzle is crucial for inkjet printing. The wetting dynamics can affect drop velocity/volume, straightness, and jetting robustness. This effect becomes more significant at high jetting frequencies because the meniscus has no time to recover between ejections. In document printing, it is possible to engineer inks to mitigate wetting induced problems and optimize the jetting performance. As the inkjet technology expands to digital fabrication, the wetting is not an ink engineering problem any more since one printhead must jet tens of different inks. This work can help to better understand the nozzle wetting dynamics and can provide valuable insight for selection of anti-wetting material and coating process for better jetting performance.
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Document Type: Research Article

Publication date: 2011-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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