Trennmittel für ein Farbstoff-Spenderelement für den thermischen Farbstofftransfer

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 containing a release agent comprising a copolymer having the following formula: wherein R1 and R3 each independently represents hydrogen or methyl; R2 represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms; R4 represents a divalent bridging group having from 1 to about 16 carbon atoms; R5 represents a haloalkyl group having from about 3 to about 20 carbon atoms, wherein the halogen consists essentially of fluorine; x represents 25-95 weight percent; and y represents 5-75 weight percent.