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Liquid Penetration into Porous Media

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Abstract:

A review of the principles of liquid penetration into porous media is presented, with emphasis on penetration of small drops (e.g. inkjet drops) into thin porous media (e.g. paper). The discussion consists of two parts: first, criteria of penetration are introduced, then the kinetics of penetration is analyzed. It is shown that the criteria of penetration depend not only on the material wettability (in terms of the contact angle), but also on the size of the liquid drop and the thickness of the porous medium. The kinetics of penetration of a drop into paper is shown to be different than theoretically expected. This is explained in terms of redistribution of the liquid between the paper pores. In addition, a method for the characterization of porous media by the kinetics of liquid penetration is presented.

Document Type: Research Article

Publication date: January 1, 2000

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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