Understanding Inkjet Inks and Factors Influencing the Jetting Behaviour
Abstract:An overview is presented of how and where key ink components influence the jetting behaviour during printing. Physical properties alone are an insufficient guide to ink performance. Small variations in ink viscoelasticity influence the upstream flow dynamics and jet break-up mechanism downstream. Recently developed novel techniques capable of quantifying fluid rheology of low viscosity complex inkjet inks at conditions similar to those during printing are discussed which have not been possible until recently. These techniques provide useful tools to differentiate between apparently identical inks but which show different jetting behaviour. This is often the case, where ink batch variations or a minor formulation alteration causes different jetting behaviour and influence print reliability.
Document Type: Research Article
Publication date: January 1, 2009
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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