Pyridoneindoaniline dye-donor element for thermal dye transfer.

摘要

A dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a pyridoneindoaniline dye having the formula: wherein: R<1> and R<2> each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; a substituted or unsubstituted cycloalkyl group having from 5 to 7 carbon atoms; a substituted or unsubstituted allyl group; a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms; or a substituted or unsubstituted hetaryl group; or R<1> and R<2> can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R<1> and R<2> can be combined with R<3> to form a 5- to 7-membered heterocyclic ring; each R<3> independently represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; a substituted or unsubstituted cycloalkyl group having from 5 to 7 carbon atoms; a substituted or unsubstituted allyl group; a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms; a substituted or unsubstituted hetaryl group; alkoxy; aryloxy; halogen; nitro; cyano; thiocyano; hydroxy; acyloxy; acyl; alkoxycarbonyl; aminocarbonyl; alkoxycarbonyloxy; carbamoyloxy; acylamido; ureido; imido; alkylsulfonyl; arylsulfonyl; alkylsulfonamido; arylsulfonamido; alkylthio; arylthio or trifluoromethyl; or any two of R<3> may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R<3> may be combined with either or both of R<1> and R<2> to complete a 5-to 7-membered ring; m is an integer of from 0 to 4; R<4> and R<5> each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms; a substituted or unsubstituted hetaryl group; or an electron withdrawing group; R<6> represents hydrogen; a substituted or unsubstituted alkyl, aryl or hetaryl group as described above for R<1> and R<2>; NH2, NHR<1>, NR<1>R<2>, NHCOR<1>, NHSO2R<1> or OR<1>.