Thermal transfer recording system having an amorphous dye phase

Details Thermal transfer recording system having an amorphous dye phase Thermal transfer recording system having an amorphous dye phase

B - Operations, Transporting

41

M

B41M 5/392 (2006.01) B41M 5/40 (2006.01) C09D 11/00 (2006.01) C09D 11/02 (2006.01) B41M 5/34 (2006.01)

Patent

CA 2395597

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.

L'invention concerne un système d'enregistrement thermique qui utilise un élément donneur comprenant un substrat et un matériau de transfert thermique à phase amorphe contenant de la teinture, la teinture ou les teintures présentes dans la phase amorphe formant un film continu. Le chauffage sous forme d'image du milieu transfère des portions de la couche de transfert vers une feuille de support, formant ainsi une image. La couche de transfert peut également comprendre une phase sans teinture comprenant un solvant thermique. Durant le chauffage de l'élément donneur, le solvant thermique cristallin fond et dissout ou liquéfie au moins une portion de la phase contenant de la teinture, abaissant ainsi la température à laquelle s'effectue le transfert de la couche de transfert.

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