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AssigneePolaroid Corporation
InventorsMichael J. Arnost, Alain Bouchard, Yongqi Deng, Edward J. Dombrowski, Russell A. Gaudiana, Serajul Haque, Fariza B. Hasan, John L. Marshall, Stephen J. Telfer, William T. Vetterling, Michael S. Viola
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There is described a thermal recording system which utilizes a donor element comprising a substrate and a thermal transfer material layer having a dye-containing phase which is amorphous and wherein the dye or dyes present in the amorphous phase form a continuous film. Imagewise heating of the medium transfers portions of the transfer layer to a receiver sheet, thus forming an image. The transfer layer may also include a non-dye phase comprising a thermal solvent. During the heating of the donor element, the crystalline thermal solvent melts and dissolves or liquefies at least a portion of the dye-containing phase, thereby lowering the temperature at which transfer of the transfer layer occurs.
A thermal mass transfer imaging method comprising
A multicolor thermal mass transfer imaging method comprising
A donor element for use in thermal transfer imaging, said donor element comprising a substrate carrying a solid thermal transfer material layer comprising a dye-containing amorphous phase comprising at least one dye, wherein said dye forms a continuous film.
A fusible composition comprising an amorphous dye-containing phase and at least one thermal solvent, at least a portion of which forms a crystalline phase separate from the amorphous dye-containing phase, said thermal solvent capable of causing said dye-containing phase to liquefy thereby causing said diffusible composition to liquefy at a temperature lower than such liquefaction could occur in the absence of said thermal solvent.
Dependencies are inferred from the claim text.