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Liquid Penetration into Porous Media

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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.
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Document Type: Research Article

Publication date: 2000-01-01

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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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