| 摘要 |
A thermal print element comprising a support having thereon a receiving layer containing a thermally-transferred dye image, the dye image comprising a magenta dye having the following formula: <CHEM> wherein: wherein R<1> and R<2> are each independently hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, or aryl group, or may be joined together to form a 5- or 6-membered, substituted or unsubstituted, heterocyclic ring system; R<3> is a substituted or unsubstituted aryl group having from about 6 to 10 carbon atoms; R<4> represents at least one electron withdrawing group; <CHEM> R<5> is hydrogen, alkoxycarbonyl, cyano, halogen, carbamoyl, acyl, alkylsulfonyl, arylsulfonyl, sulfamoyl or alkyl, or may represent the atoms necessary to join with R<2> to form a 5- to 7-membered, substituted or unsubstituted, heterocyclic ring system; the dye image also comprising a cyan indoaniline dye in the same areas as the magenta dye to provide improved stability to light for the magenta dye, the cyan indoaniline dye having the formula: <CHEM> wherein: R<6> and R<7> are each independently hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, or aryl group; R<8> represents hydrogen, a substituted or unsubstituted alkyl group, alkoxy, halogen, -NHCOR<1> or -NHSO2R<1>; R<9> represents hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, or aryl group, -CONHR<6>, -CN, -Cl, -NHCOR<6>, -NHCO2R<6>, -NHCONHR<6> -NHCON(R<6>)2, -SO2NHR<6>, -NHSO2R<6>, -SCN or <CHEM> Y represents hydrogen or the atoms necessary to complete a 5- or 6-membered, substituted or unsubstituted, carbocyclic or heterocyclic ring system; n is 1-4; and m is 1-4. ri |
