The effect of rheological property of ink on the generation of inkjet droplet

Hansol Yoo, Chongyoup Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In inkjet printing the ink is usually a suspension of particles in liquid. Suspensions usually show shear-thinning characteristics. To understand the jetting and drop generation mechanism of suspensions we investigated similar systems for which the rheological properties are well characterized. As "inks," Newtonian fluids (water-glycerin mixture) and shear-thinning fluids (xanthan gum solutions in the Newtonian fluid) were prepared. The diameter and velocity of droplet were measured while varying waveform of bipolar shape to the piezoelectric inkjet head and the effects of the rheological properties were examined. The result shows that the impinging velocity is strongly affected by zero-shear and extensional viscosities while the drop size is dependent on infinite shear viscosity.

Original languageEnglish
Title of host publicationNanotechnology 2012
Subtitle of host publicationElectronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Pages251-254
Number of pages4
Publication statusPublished - 2012
EventNanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 - Santa Clara, CA, United States
Duration: 2012 Jun 182012 Jun 21

Publication series

NameTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Other

OtherNanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
CountryUnited States
CitySanta Clara, CA
Period12/6/1812/6/21

Keywords

  • Extensional viscosity
  • Infinite shear viscosity
  • Shear thinning
  • Zero-shear viscosity

ASJC Scopus subject areas

  • Ceramics and Composites
  • Surfaces, Coatings and Films

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  • Cite this

    Yoo, H., & Kim, C. (2012). The effect of rheological property of ink on the generation of inkjet droplet. In Nanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 (pp. 251-254). (Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012).