Maleimide blue dyes for color filter array element

A process of forming a color filter array element comprising:

• a) imagewise-heating a dye-donor element comprising a support having thereon a dye layer, and
• b) transferring portions of said dye layer to a dye-receiving element comprising a support having thereon a dye-receiving layer,
• said imagewise-heating being done in such a way as to produce a repeating pattern of colorants, one of the colorants being a maleimide blue dye having the formula:
• ##STR35## wherein:
• R.sup.1 and R.sup.2 each independently represents hydrogen;
• a substituted or unsubstituted alkyl group having from 1 to about 8 carbon atoms;
• a cycloalkyl group having from about 5 to about 8 carbon atoms;
• or a substituted or unsubstituted alkenyl group having from about 2 to about 8 carbon atoms;
• R.sup.1 and R.sup.2 may represent the elements which may be taken together to form a 5- or 6-membered heterocyclic ring;
• each Y independently represents hydrogen;
• a substituted or unsubstituted alkyl group having from 1 to about 8 carbon atoms;
• an alkoxy group OR.sup.1 ;
• halogen;
• or two adjacent Y's may represent the atoms which may be taken together to form a fused aromatic ring;
• n is 0 to 4;
• the position of Y ortho to the nitrogen may also be combined with R.sup.1 to form a 5- or 6-membered non-aromatic, single or double nitrogen-containing, heterocyclic ring, thus forming a fused ring system;
• and
• X is R.sup.1 ;
• a substituted or unsubstituted acyl group having from 2 to about 9 carbon atoms;
• a substituted or unsubstituted aroyl group having from about 7 to about 18 carbon atoms;
• or a substituted or unsubstituted heteroaroyl group having from about 2 to about 10 carbon atoms.