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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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Abstract:

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.

Document Type: Research Article

Publication date: January 1, 2012

More about this publication?
  • 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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