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Characterizing and Modeling Coalescence in Inkjet Printing

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In liquid inkjet printing, a critical quality issue is the coalescence of ink on the media surface. This paper describes a technique for quantifying coalescence using an automated print quality analysis system. This technique measures spatial variability of reflectance caused by coalescence. Uniformity is compared in test samples printed with different printing technologies. The technique was used to study the effects of different media coatings on the magnitude of coalescence in inkjet printing. The roles of the surface tension of the ink, the surface energy of the media and the rate of ink absorption by the media are examined for insight into the mechanisms of coalescence.

Document Type: Research Article

Publication date: January 1, 1998

More about this publication?
  • 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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