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Rewritable Printing System Using Leuco Dyes

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Printing systems that are capable of displaying information are becoming increasing important as greater volumes of information become available in digital format. But considering that most documents are only printed for temporary use then discarded, a rewritable printing system would be useful and advantageous for the environment. We have now succeeded in developing a practical rewritable printing system that is capable of rewriting the same sheets more than 500 times. By thermally controlling the coloring reaction of leuco dyes, the system creates stable, highcontrast color images that can be quickly erased so the sheets can be reused and overwritten with new images. This is made possible by our ability to control molecular aggregation structures formed by long-chain molecules in leuco dye developer, which opened the way to our development of functional reversible media based on the supramolecular structure of leuco dye and the long-chain developer.
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Document Type: Research Article

Publication date: 2004-01-01

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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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