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Measuring Dynamic Interactions Between Paper and Microscale Ink Drops

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The size of a single drop determines the smallest detail that can be produced in an ink jet system. Drops of as small as three picoliters can be controllably created at the present level of ink jet technology. The final dot quality of a drop can be easily measured by an image analysis system, but the significance of high speed dynamic interactions between paper and ink cannot be determined from the final print quality. Therefore, VTT Information technology has developed several high-speed camera based systems for ink jet paper research.

This paper details a new laboratory-scale test environment developed for the measurement of dynamic interactions between paper and ink with drops of a magnitude of under 20 microns. The equipment is based on a commercial piezo-electric desktop printer, a high-speed CCD camera, an optical fibre light source and a PC with control and analysis software. In this environment, the impact, spreading, penetration and drying of very small 3 pl ink drops on the paper samples can be observed on a time scale of milliseconds up to several minutes. This article describes the development and properties of this new environment. In addition, examples of the results produced by this new equipment are given.

Document Type: Research Article

Publication date: 2001-01-01

More about this publication?
  • 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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