Increasing dye transfer efficiency in dye-donor elements used in thermal dye transfer.

摘要

A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that the dye-donor element contains a colorless, nonpolymeric material for increasing dye transfer efficiency having the following formula: wherein D is -CO-, -SO2NR-, -CONR-, -CO-CHR-CO-, wherein R is H or a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms.