Plasticizers for dye-donor element used in thermal dye transfer

摘要

This invention relates to a dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising an image dye in a polymeric binder, and wherein the dye layer also contains a polymeric plasticizer having a Tg less than 25 DEG C, the plasticizer comprising wherein: R and R<1> each independently represent a substituted or unsubstituted linear or branched alkylene, phenylene or cycloalkylene group of from 1 to 12 carbon atoms; and n is an integer selected so that the plasticizer has a polystyrene equivalent weight average molecular weight of from 18,000 to 300,000.