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Importance of Dye Partition Coefficient in Thermal Dye Transfer Printing Efficiency

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The importance of dye partition coefficients in thermal dye transfer printing efficiency is demonstrated by computational modeling, direct experimental measurements of dye partition coefficients, and printing efficiency measurements. Previous calculations of the effects of printing power, print head efficiency, line time, and media materials properties using the onedimensional LaFleche-Ozimek model have predicted that a higher dye partition coefficient P should lead to higher thermal dye transfer printing efficiency. However, little or no experimental data on receiver/donor dye partition coefficients have been reported. In this work we report direct experimental measurements of dye partition coefficients for various dye/binder combinations. Values for P ranging from 0.24 to greater than 10 were obtained. Thermal printing efficiency is observed to increase with increasing partition coefficient, in agreement with the LaFleche-Ozimek model.

Document Type: Research Article

Publication date: 2006-01-01

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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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