Marangoni flow on an inkjet nozzle plate

Jos De Jong, Hans Reinten, Herman Wijshoff, Marc Van Den Berg, Koos Delescen, Rini Van Dongen, Frieder Mugele, Michel Versluis, Detlef Lohse

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)
300 Downloads (Pure)

Abstract

In piezo inkjet printing, nozzle failures are often caused by an ink layer on the nozzle plate. It is experimentally shown that the ink layer at the nozzle is formed through streamers of ink, emanating from a central ink band on the nozzle plate. The streamers propagate over a wetting nanofilm of 13 nm thickness, directed toward the actuated nozzles. The motion of the front end of the streamers follows a power law in time with an exponent 1 2. The observations are consistent with a surface tension gradient driven flow. The origin of the Marangoni flow is an effective lower surfactant concentration of the ink around the nozzle.

Original languageEnglish
Article number204102
Pages (from-to)1-3
JournalApplied Physics Letters
Volume91
Issue number20
DOIs
Publication statusPublished - 2007

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