Thermal transfer ink sheet with supercooling wax layer for lusterless plain-paper printing

Kenji Nomura; Kikuo Hayama

doi:10.1117/12.19830

1 July 1990 Thermal transfer ink sheet with supercooling wax layer for lusterless plain-paper printing

Kenji Nomura, Kikuo Hayama

Proceedings Volume 1253, Hard Copy and Printing Materials, Media, and Processes; (1990) https://doi.org/10.1117/12.19830
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

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.

Citation Download Citation

Kenji Nomura and Kikuo Hayama "Thermal transfer ink sheet with supercooling wax layer for lusterless plain-paper printing", Proc. SPIE 1253, Hard Copy and Printing Materials, Media, and Processes, (1 July 1990); https://doi.org/10.1117/12.19830

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