| 摘要 |
<p>-i-THIAZOLYLMETHYLENE-2-PYRAZOLINE-5-ONE DYE-DONOR ELEMENT FOR THERMAL DYE TRANSFER A dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a thiazolylmethylene-2-pyrazoline-5-one. In a preferred embodiment, the dye has the formula: wherein R1 represents hydrogen, a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms, a cycloalkyl group having from about 5 to about 7 carbon atoms, or a substituted or unsubstituted aryl or hetaryl group having from about 2 to about 10 carbon atoms; R2 represents an alkoxy group having from 1 to about 10 carbon atoms or a primary, secondary or tertiary amino group; R3 and R4 each represents R1, with the proviso that only one of R3 and R4 may be hydrogen, or R3 and R4 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring, R5 and R6 each independently represents hydrogen; halogen; cyano; thiocyano; a substituted or unsubstituted alkyl, alkoxy, alkylthio or alkylsulfonyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted axyl or hetaryl, aryloxy or hetaryloxy, arylthio or hetarylthio, arylsulfonyl or hetarylsulfonyl group -ii-having from about 2 to about 10 carbon atoms; a cycloalkyl group having from about 5 to about 7 carbon atoms; alkoxycarbonyl; aryloxycarbonyl; acyl; carbamoyl; mono- or dialkylamino; mono- or diarylamino; acylamido; sulfonamido; or sulfamoyl.</p> |
