Patent ID: 6124237
Filing Date: 2000-09-26
Classification: B41M,C09B,Y10S

Abstract:
An orange dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a mixture of a pink dye and a first and second yellow dye dispersed in a polymeric binder, said pink dye having the formula A: ##STR13## wherein: R.sup.1, R.sup.2 and R.sup.3 each independently represents a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted cycloalkyl group having from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; or a substituted or unsubstituted hetaryl group of from about 5 to about 10 atoms;X represents C(CH.sub.3).sub.2, S, O or NR.sub.1 ; andY represents the atoms necessary to complete a 5- or 6-membered ring which may be fused to another ring system;said first yellow dye having the formula E having the structure: ##STR14## wherein: R.sup.8, R.sup.9 and R.sup.10 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atom; a cycloalkyl group of from about 5 to about 7 carbon atoms; or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms, such as phenyl, naphthyl, p-tolyl, m-chlorophenyl, p-methoxyphenyl, m-bromophenyl, o-tolyl, etc.;or R.sup.8 and R.sup.9 can be joined together to form, along with the nitrogen to which they are attached, a 5-or 6-membered heterocyclic ring, such as a pyrrolidine or morpholine ring;or either or both of R.sup.8 and R.sup.9 can be joined to the carbon atom of the benzene ring at a position ortho to the position of attachment of the anilino nitrogen to form a 5- or 6-membered ring, thus forming a polycyclic system such as 1,2,3,4-tetrahydroquinoline, julolidine,2,3-dihydroindole, or benzomorpholine;R.sup.11 represents a substituted or unsubstituted alkoxy group having from1 to about 10 carbon atoms, such as methoxy, ethoxy, methoxyethoxy or 2-cyanoethoxy; a substituted or unsubstituted aryloxy group having from about 6 to about 10 carbon atoms, such as phenoxy, m-chlorophenoxy, or naphthoxy; NHR.sup.8 ; NR.sup.8 R.sup.9 ;each W independently represents a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; alkoxy having from 1 to about 10 carbon atoms; halogen; or two adjacent W's together represent the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; andn represents an integer from 0 to 2;said second yellow dye having the formula F or G, said formula F having the structure: ##STR15## wherein: R.sup.12 represents methyl or a substituted or unsubstituted alkoxy group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryloxy group having from about 6 to about 10 carbon atoms;R.sup.13 represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atom; a cycloalkyl group of from about 5 to about 7 carbon atoms; or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms;R.sup.14 and R.sup.15 each independently represents hydrogen or a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 4 carbon atoms; andsaid formula G having the structure: ##STR16## wherein: R.sup.17, R.sup.18 and R.sup.19 each independently represents the same groups as R.sup.1, R.sup.2 and R.sup.3 above;R.sup.16 represents any of the groups for R.sup.17, R.sup.18 and R.sup.19 or represents the atoms which when taken together with Z forms a 5- or 6-membered ring;Z represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; alkoxy; halogen; or represents the atoms which when taken together with R.sup.16 forms a 5- or 6-membered ring;each W independently represents a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; alkoxy having from 1 to about 10 carbon atoms; halogen; or two adjacent W's together represent the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; andn represents an integer from 0 to 2.