CUED Publications database

Aerodynamic effects in ink-jet printing on a moving web

Hsiao, WK and Hoath, SD and Martin, GD and Hutchings, IM (2012) Aerodynamic effects in ink-jet printing on a moving web. International Conference on Digital Printing Technologies. pp. 412-415.

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The airflow between the fast-moving substrate and stationary print heads in a web print press may cause print quality issues in high-speed, roll-to-roll printing applications. We have studied the interactions between ink drops and the airflow in the gap between the printhead and substrate, by using an experimental flow channel and high-speed imaging. The results show: 1) the gap airflow is well approximated by a standard Couette flow profile; 2) the effect of gap airflow on the flight paths of main drops and satellites is negligible; and 3) the interaction between the gap airflow and the wakes from the printed ink drops should be investigated as the primary source of aerodynamically- related print quality issues. ©2012 Society for Imaging Science and Technology.

Item Type: Article
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 18 May 2016 17:54
Last Modified: 26 May 2016 23:48