Abstract: A donor element for thermal transfer comprising a support having on one side thereof a fluorescent 7-aminocarbostyril compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: each X and Y independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; or the atoms necessary to complete, along with the nitrogen to which it is attached, a 5- or 6-membered heterocyclic ring.

Abstract: A donor element for thermal transfer comprising a support having on one side thereof a fluorescent derivative of a 1,8-naphthalimide compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: R is hydrogen; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; or a carbocyclic or heterocyclic ring of about 5 to about 10 atoms; andD is a monovalent, nonionic, nonquenching moiety.

Abstract: A donor element for thermal transfer comprising a support having on one side thereof a fluorescent 7-aminocoumarin compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: each X and Y independently represents hydrogen; a substituted or unsubstituted alkyl or acyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; or the atoms necessary to complete, along with the nitrogen to which it is attached, a 5- or 6-membered heterocyclic ring.

Abstract: A donor element for thermal transfer comprising a support having on one side thereof a fluorescent material dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant, the fluorescent material comprising a diphenyl ethylene having the formula: ##STR1## wherein: n is 1 to 6, with the proviso that when n is 1, at least one of the phenyl rings must be substituted with a conjugated moiety.

Abstract: A donor element for thermal transfer comprising a support having on one side thereof a fluorescent diphenylpyrazoline compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: R is hydrogen, cyan; carboxyalkyl; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; or a substituted or unsubstituted aryl group of about 6 to about 10 carbon atoms; and J is hydrogen; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; a substituted or unsubstituted aryl group of about 6 to about 10 carbon atoms; or may represent --CH.sub.2 -- or --CH.sub.2 CH.sub.2 -- to complete a 5- or 6-membered non-aromatic carbocyclic ring.

Abstract: A stabilizer-doner element for thermal dye transfer comprising a support having on one side thereof a stabilizer dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant.The polymeric binder may also have a dye dispersed therein. Examples of stabilizers include phenolic antioxidants, multialkoxy-substituted aromatic compounds and singlet oxygen quencher metal chelates such as nickel dithiocarbamates.

Abstract: A dye-donor element for thermal dye transfer comprises a support having thereon a merocyanine dye dispersed in a polymeric binder, the merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, the merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.In a preferred embodiment, the merocyanine dye has the formula: ##STR1## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO.sub.2 R or --SO.sub.2 NR.sub.2 ; or A may be combined together with R.sup.1 to form a heterocyclic or carbocyclic ring system;R.sup.1 represents --NHR, --NR.sub.

Abstract: A neutral-black dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a 1-((4-phenylazo)phenylazo)-8-amino-2-naphthol, such as one having the formula: ##STR1## wherein: each R.sup.1 is independently a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of from about 5 to about 10 carbon atoms, or two R.sup.1 groups may be joined together with the N atom to which they are attached to form a 5- or 6-membered heterocyclic ring; andR.sup.2 is hydrogen or R.sup.1.

Abstract: A dye-donor element for thermal dye transfer comprising a support having on one side thereof a near-infrared absorbing dye comprising a dithiolene-nickel(II) complex dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant, the dye having the formula: ##STR1## wherein each R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represents a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atms; a substituted or unsubstitutted heterocyclic group; or R.sup.1 and R.sup.2 may be combined together with the carbon atoms to which they are attached to form a 5- or 6-membered carbocyclic or heterocyclic ring; or R.sup.3 and R.sup.4 may be combined together with the carbon atoms to which they are attached to form a 5- or 6-membered carbocyclic or heterocyclic ring.

Abstract: A thermal print element comprising a support having thereon a layer containing a thermally-transferred dye image, the dye image comprising a yellow merocyanine dye having the formula: ##STR1## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO.sub.2 R or --SO.sub.2 NR.sub.2 ; or A may be combined together withR.sup.4 to form a heterocyclic or carbocyclic ring system;R.sup.4 represents --NHR, --NR.sub.2, --OR, --SR, or --R;n represents 0 to 1;Z represents the atoms necessary to complete a5- or 6-membered substituted or unsubstituted heterocyclic ring; andeach R independently represents a substituted or unsubstituted alkyl or aryl group;the dye image also comprising a cyan indoaniline dye in the same areas as the yellow merocyanine dye to provide improved stability to light for the yellow merocyanine dye, the cyan indoaniline dye having the formula: ##STR2## wherein: R.sup.1 and R.sup.2 are each independently hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, or aryl group;R.sup.

Abstract: A thermal print element comprising a support having thereon a layer containing a thermally-transferred dye image, the dye image comprising a yellow merocyanine dye having the formula: ##STR1## wherein: A and B each independently represent --COR, --COOR, --CONHR, --CN, --SO.sub.2 NR.sub.2 ; or A and B may be combined together with the carbon atom to which they are attached to form a conjugated heterocyclic ring system;Y represents --CR.sub.2 --, --CR.dbd.CH--,--O--, --S--, --Te--, --Se--, or --NR--;Z represents the atoms necessary to complete a 5- or 6-membered substituted or unsubstituted heterocyclic ring; andeach R independently represents hydrogen, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group;the dye image also comprising a cyan indoaniline dye in the same areas as the yellow merocyanine dye to provide improved stability to light for the yellow merocyanine dye, the cyan indoaniline dye having the formula: ##STR2## wherein R.sup.1 and R.sup.

Abstract: A dye-donor element is described which contains an area which does not contain any image dye. A receiving element containing thermally transferred image dyes is reheated by a thermal print head with an area of the dye-donor which does not contain any dye located therebetween. Stratification of the transferred image dye in the receiver is thereby reduced.

Abstract: A dye-receiving element for thermal dye transfer process and assemblage comprises a support having thereon a dye image-receiving layer and a stabilizer compound having the following moiety: ##STR1## wherein each R is independently an alkyl or substituted alkyl group of from 1 to about 20 carbon atoms, or two adjacent R groups may be joined together to form methylene or ethylene; and x is as least 3.Dyes which are transferred to this receiving element have improved light stability.

Abstract: A process is described for reheating a dye image-receiving element containing a thermally-transferred dye image and a stabilizer. Stratification of the transferred dye image in the receiving element is thereby reduced, resulting in an increase in stability to light of the transferred dyes.