Farbstoffdonorelement für die thermische Farbstoffsublimationsübertragung.

摘要

Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a dye corresponding to general formula (I) wherein n represents 0 or 1; X and Y each independently represent C=O, C=S, SO2, C=U with U a group derived from an electronegative active methylene group such as C(CN)2, C(CN)(COOR1), CBrCOOR1, C(COOR1)(COOR1 min ), C(COR1)(COR1 min ) wherein R1 and R1 min each independently represent hydrogen or an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group; A represents the atoms necessary to complete a 5- or 6-membered unsubstituted or substituted ring including such ring with an aromatic nucleus fused-on such as indane; Z represents N or CR2 wherein R2 represents H, CN, COOR1 sec , NR5 min R6 min , OR7 min , SR7 min , an electronegative active methylene group such as CH(CN)2, CH(CN)(COOR1 sec ) wherein R1 sec represents hydrogen or an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group and wherein R5 min and R6 min each independently represent hydrogen, an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group or R5 min and R6 min may be combined together with the nitrogen to which they are attached to form a heterocyclic ring system and wherein R7 min represents hydrogen or an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group or R2 may be combined with R to form a 5- or 6-membered unsubstituted or substituted ring such as 4H-pyran or 1H,4H-pyridine; R represents Ar-NR3R4, Ar min -N=N-Ar-NR3R4, Het-N=N-Ar-NR3R4, Het-N=CR2 min ,-NR5R6, Ar(OR7)m wherein Ar and Ar min each independently represent an unsubstituted or substituted aryl nucleus including fused aromatic nuclei and wherein Het represents an unsubstituted or substituted 5-membered or 6-membered heterocyclic ring such as thiazole, oxazole, thiadiazole, 4-chlorooxazole, 4-chlorothiazole and wherein R3 and R4 each independently represent a hydrogen atom, an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group or R3 and R4 may be combined together with the nitrogen to which they are attached to form a heterocyclic ring system or R3 and/or R4 may be combined with Ar to form a heterocyclic ring system and wherein R2 min has one of the significations given for R2 and wherein R5 and R6 have one of the significations given for R5 min and R6 min and wherein R7 has one of the significations given for R7 min and wherein m represents 1, 2 or 3 (when m equals 2 or 3 the R7 groups may be the same or different) or R may be combined with R2 (in case Z is CR2) to form a 5- or 6-membered unsubstituted or substituted ring such as 4H-pyran or 1H,4H-pyridine.