Patent ID: 6180561
Filing Date: 2001-01-30
Classification: B41M,Y10S

Abstract:
A magenta dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a mixture of magenta dyes and a yellow dye dispersed in a polymeric binder, at least one of the magenta dyes having the formula: ##STR15##wherein:R.sup.1 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 6 carbon atoms;X is an alkoxy group of from 1 to about 4 carbon atoms or represents the atoms which when taken together with R.sup.2 forms a 5- or 6-membered ring;R.sup.2 is any of the groups for R.sup.1 or represents the atoms which when taken together with X forms a 5- or 6-membered ring;R.sup.3 is a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms;J is CO, CO.sub.2, --SO.sub.2 -- or CONR.sup.5 --;R.sup.4 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; andR.sup.5 is hydrogen, a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms;at least another of the magenta dyes having the formula: ##STR16##wherein:R.sup.6 is a substituted or unsubstituted alkyl group having from 1 to about 4 carbon atoms, an alkoxy group having from 1 to about 4 carbon atoms, an alkylcarbonamido group having from 1 to about 6 carbon atoms or an alkylsulfonamido group having from 1 to about 8 carbon atoms;R.sup.7 and R.sup.8 each individually represent a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms, a substituted or unsubstituted alkyl group having from 1 to about 5 carbon atoms, an alkoxyalkyl group having from 3 to about 8 carbon atoms, an aralkyl group having from about 7 to about 10 carbon atoms or a hydroxyalkyl group having from about 2 to about 5 carbon atoms;R.sup.9 is hydrogen, halogen, an alkoxy group having from 1 to about 4 carbon atoms or may be taken together with R.sup.7 or R.sup.8 to form a 5- or 6-membered heterocyclic ring; andR.sup.10 is hydrogen, a substituted or unsubstituted alkyl group having from 1 to about 8 carbon atoms or an alkoxy group having from 1 to about 4 carbon atoms;said yellow dye having the formula: ##STR17##wherein:R.sub.1, R.sub.2 and R.sub.3 each individually represents hydrogen or a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 4 carbon atoms; andR.sub.4 represents a substituted or unsubstituted aryl group having from 6 to about 10 carbon atoms or a substituted or unsubstituted alkyl group having from 1 to about 4 carbon atoms; andsaid element containing a complexing agent having the formula: ##STR18##whereinR.sub.1 and R.sub.2 each independently represents an alkyl group having from 1 to about 6 carbon atoms; a substituted or unsubstituted aryl group having from 6 to about 10 carbon atoms; or a hetaryl group having from about 5 to about 10 atoms; orR.sub.1 and R.sub.2 may be taken together to form a 5- or 6-membered ring;Z represents a cation; andn represents 1 or 2.