Patent ID: 7781373

Claim:
A cyan dye donor element for thermal transfer imaging comprising a support having thereon a dye layer comprising a mixture of at least two cyan dyes dispersed in a polymeric binder, wherein at least one of said at least two cyan dyes is a light stabilizing dye represented by Formula I: wherein R 1 and R 2 are substituted or unsubstituted alkyl, cycloalkyl, or aryl, or combine to form a carbocyclic or heterocyclic ring; R 3 is hydrogen, halogen, alkoxy, substituted or unsubstituted alkyl, NHCOR 1 , NHSO 2 R 1 , or combines with either R 1 or R 2 to form a carbocyclic or heterocyclic ring; X is halogen; Y is alkyl; Z is carbon or nitrogen; J is NHCOR 4 ; R 4 is R 5 Phenyl(OR 7 )m; R 5 is a carbon-carbon single bond, —(CHR 6 )n-, or —(CH 2 )pO—; R 6 is hydrogen, substituted or unsubstituted alkyl; R 7 is substituted or unsubstituted alkyl, carbocycle or heterocycle; m is 2-5; n is 0-6; p is 2-5; the formula weight of R 4 does not exceed 230.