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Droplet Formation and Physical Characterization of Powder Suspensions

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Although the market for digital printing is expanding at a phenomenal pace, there have been no developments to enable printing digitally using metallic inks. While there are several challenges in meeting this objective, the major challenges are with respect to the formulation of stable suspensions using the highly dense metallic pigments, and the lack of a printhead that is capable of jetting these suspensions. In order to develop metallic inks for digital printing, an in-depth understanding of the behavior of powdered materials in suspension is required. The present paper describes the formulation of experimental suspensions, and the characterization of their physical properties such as vicosity, and surface tension. The experimental results on the jettability of some of these suspensions and their drop formation characteristics will be described. This will help in the evaluation of these types of suspensions for ink jet printing.

Document Type: Research Article

Publication date: 2001-01-01

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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