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A Novel Method for the Evaluation of Jettability

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Assessment of the jettability of inks is essential in the process of developing ink formulations and in the process of verifying suitability of inks for print-head assemblies. Currently, evaluation of jettability of inks has largely relied on testing the inks in the print-head assemblies concerned, which, whilst being a reliable method, does have its drawbacks. Thus, there is a high level of risk of the inks of poor performance properties damaging the printhead. This paper describes a method for the assessment of the jettability of inks through the creation of a “jettability plot” using easily measurable properties such as viscosity and surface tension of the ink. Thus, for each print-head assembly, a jettability plot can be created which contains jettable and un-jettable regions. Consequently, the assessment of the jettability of an ink can be achieved by measuring the viscosity and surface tension of the ink followed by determination of which region the viscosity/surface tension combination falls in. Various application examples are included in this paper.
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Document Type: Research Article

Publication date: 01 January 2008

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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