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Proceedings Paper

Thermal transfer ink sheet with supercooling wax layer for lusterless plain-paper printing
Author(s): Kenji Nomura; Kikuo Hayama
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Paper Abstract

A two layered ink sheet with a super-cooling wax layer under a usual hot melt type ink layer was developed. Super-cooling characte- ristics of various waxes was investigated by a light scattering evaluation method. Difference in light scattering intensity between the ones from the molten wax and from the solidified wax was utilized as the light scattering intensity depends on the crystallinity of the wax. By this screening, several kinds of preferable super-cooling waxes were found. The super-cooling ink layer, once heated under the thermal head, keeps it's molten state even when the sheet reaches the peeling transfer place in printing process, with the ink below the solidifying temperature. There, the non solidified layer is easily peeled off the sheet, resulting in the smooth transfer of the overall ink layer on rougher paper surfaces. The thermal transfer ink sheet employing the optimized wax was fabricated. High quality printing on lusterless plain paper was achieved by this ink sheet.

Paper Details

Date Published: 1 July 1990
PDF: 7 pages
Proc. SPIE 1253, Hard Copy and Printing Materials, Media, and Processes, (1 July 1990); doi: 10.1117/12.19830
Show Author Affiliations
Kenji Nomura, Mitsubishi Electric Corp. (Japan)
Kikuo Hayama, Mitsubishi Electric Corp. (Japan)

Published in SPIE Proceedings Vol. 1253:
Hard Copy and Printing Materials, Media, and Processes
Joseph Gaynor, Editor(s)

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