Influence of fluid physical properties on ink-jet printability

Daehwan Jang, Dongjo Kim, Jooho Moon

Research output: Contribution to journalArticlepeer-review

574 Citations (Scopus)


Ink-jet printing is a method for directly patterning and fabricating patterns without the need for masks. To achieve this, the fluids used as inks must have the capability of being stably and accurately printed by ink-jetting. We have investigated the inter-relationship between ink-jet printability and physical fluid properties by monitoring droplet formation dynamics. The printability of the fluids was determined using the inverse (Z) of the Ohnesorge number (Oh) which relates to the viscosity, surface tension, and density of the fluid. We have experimentally defined the printable range as 4 ≤ Z ≤ 14 by considering characteristics such as single droplet formability, positional accuracy, and maximum allowable jetting frequency.

Original languageEnglish
Pages (from-to)2629-2635
Number of pages7
Issue number5
Publication statusPublished - 2009 Mar 3

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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