Droplet Formation and Physical Characterization of Powder Suspensions
Abstract: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: January 1, 2001
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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