Related Experiment Video
Updated: Jun 23, 2026

Inkjet-printed Polyvinyl Alcohol Multilayers
Published on: May 11, 2017
Influence of fluid physical properties on ink-jet printability
Daehwan Jang1, Dongjo Kim, Jooho Moon
1Department of Materials Science and Engineering, Yonsei University 134 Shinchon-dong Seodaemun-gu, Seoul 120-749, Korea.
Abstract:
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 < or = Z < or = 14 by considering characteristics such as single droplet formability, positional accuracy, and maximum allowable jetting frequency.
Related Concept Videos
Capillarity in Fluid
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Types of Fluids
In contrast, non-Newtonian fluids do not follow Newton's law of viscosity, and their...
Viscosity
The SI unit of viscosity is...
Viscosity
Characteristics of Fluids
Characteristics of Fluids
Fluids, which include both liquids and gases, are substances that deform continuously under shearing stress. For example, water and oil are liquids with molecules that can...

