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Experimental Comparison of Wettability by Using Pico- and Microliter Droplets with Range of Liquid Surface Tensions on Porous and Non-porous Substrates

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Contact angle measurement is a common method to define wettability and liquid-substrate interactions. Since inkjet printing is based on ejection of separate ink droplets on substrate, contact angle measurement is commonly utilized to characterize ink-substrate interactions in inkjet printing. However, the droplet size in contact angle measurements is typically in microliter scale, whereas picoliter droplets are used in inkjet printing. In this work an experimental comparison between micro- and picoliter droplets to evaluate the influence of droplet volume on contact angle has been made. Wide range of liquid surface tensions on porous inkjet paper and non-porous polymer substrates were tested.
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Document Type: Research Article

Publication date: January 1, 2012

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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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