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Fundamental Mechanisms in Ink Media Interactions for Aqueous, UV-Curing and Solvent Based Inks

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In this article, the dynamics of droplet impingement, spreading, absorption, penetration, curing and/or evaporation are discussed for different ink jet ink classes. Both dye and pigment based aqueous inks are included, as well as solvent or eco-solvent inks, and UV-curing inks.

The fundamental physicochemical rules determining the dynamics can be very dependent from ink to ink, and are compared.

After impact there is a fast spreading phase that takes into account the evolution of the kinetic energy of the droplet to forced spreading on the receiver. Later on, diffusion or capillary wicking is possible, and is depending upon the nature of the substrate. The speed of these processes can be influenced by the presence of dyes or pigments in the inks. After absorption/penetration, the carrier liquid can evaporate leading to the final equilibrium condition.

For (eco)-solvent inks the evaporation is much more important compared to the other penetration/absorption processes, so that it can not be easily separated into different independent time-scales.

For UV-curing inks, a polymerisation reaction leads to solidification of the ink. For that reason the absorption or diffusion is not important, and has to be replaced by a reaction process.
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Document Type: Research Article

Publication date: 01 January 2004

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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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