Research on Ink Properties, Primally Dynamic Surface Tension to Control Jet Length

DOI

Bibliographic Information

Other Title
  • ジェット長を制御するためのインク物性，主として動的表面張力に関する研究

Description

<p>Jetted ink from the piezo head does not merge into a single drop, but is split into multiple droplets causing problems such as satellites and mists. By using a device that can observe the behavior of the jet droplets in detail, we found that droplet merging is correlated with the “end of tail” position of the droplet immediately after jetting, and that the “end of tail” position depends on the ink, but is independent of the driving voltage. The “end of tail” position is correlated with the Ohnesorge number, calculated from the viscosity, dynamic surface tension, and density of the ink. In particular, the dynamic surface tension was found to be affected by the surface tension at 80μs to explain best correlation. The simulation of droplet formation was also performed, and experimental observation was well explained to confirm our simulation to be useful design tool of inks.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390014945747196672
  • DOI
    10.11370/isj.62.208
  • ISSN
    18804675
    13444425
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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