Mixture of dyes for black dye donor for thermal color proofing

Claim 2

A black dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a mixture of at least one cyan, magenta and yellow dyes dispersed in a polymeric binder, at least one of the an dyes having the formula: ##STR40## wherein: R 1 and R 2 each independently represents hydrogen; 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 or a substituted or unsubstituted allyl group; with the proviso that R 1 and R 2 cannot both be hydrogen; or R 1 and R 2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R 1 and R 2 can be combined with an R 3 to form a 5- to 7-membered heterocyclic ring; each R 3 independently represents substituted or unsubstituted alkyl, cycloalkyl or allyl as described above for R 1 and R 2 , alkoxy, aryloxy, halogen, thiocyano, acylamido, ureido, alkylsulfonamido, arylsulfonamido, allthio, arylthio or trifluoromethyl; or any two of R 3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R 3 may be combined with either or both of R 1 and R 2 to complete a 5- to 7-membered ring; m is an integer of from 0 to 4; R 4 represents hydrogen or an electron withdrawing group; R 5 represents an electron withdrawing group, a substitute or unsubstituted aryl group having from about 6 to about 10 carbon atoms or a substituted or unsubstituted hetaryl group having from about 5 to about 10 atoms; R 6 and R 7 each independently represents an electron withdrawing group; and R 6 and R 7 may be combined to form the residue of an active methylene compound; and at least one of the yellow dyes having the formula: ##STR41## wherein: R 8 , R 9 and R 11 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms a substituted or unsubstituted allyl group; or an aryl group having from about 6 to about 10 carbon atoms; or R 8 and R 9 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; or either or both of R 8 and R 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; R 10 represents hydrogen; a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; carbamoyl; or alkoxycarbonyl; R 12 represents 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; NHR 13 ; NR 13 R 14 or the atoms necessary to complete a 6-membered ring fused to the benzene ring; R 13 and R 14 each independently represents any of the groups for R 8 ; or R 13 R 14 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; n is a positive integer from 1 to 5; and G represents a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 10 carbon atoms; halogen; aryloxy; or represents the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; and at least one of the magenta dyes having the formula: ##STR42## wherein: R 15 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms; X is an alkoxy group of from 1 to about 4 carbon atom or represents the atoms which when taken together with R 16 forms a 5- or 6-membered ring; R 16 is any of the groups for R 15 or represents the atoms which when taken together with X forms a 5- or 6-membered ring; Y is R 15 , an alkoxy group of from 1 to about 4 carbon atoms, hydrogen, halogen, or NHJR 17 ; R 17 is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; J is CO, CO 2 , --SO 2 -- or CONR 20 --; R 18 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; R 19 is hydrogen, cyano, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; and R 20 is hydrogen or R 18 .

Claim 3

The element of claim 1 wherein R 4 , R 6 and R 7 in formula I are cyano.

Claim 4

The element of claim 1 wherein R 1 in formula I is C 2 H 5 , C 2 H 4 OH, or n-C 3 H 7 .

Claim 5

The element of claim 1 wherein R 2 in formula I is C 2 H 5 or n-C 3 H 7 .

Claim 6

The element of claim 1 wherein R 3 in formula I is hydrogen, OC 2 H 5 , CH 3 or NHCOCH 3 .

Claim 7

The element of claim 1 wherein R 5 in formula I is p-C 6 H 4 Cl, m-C 6 H 4 NO 2 or naphthyl.

Claim 8

The element of claim 1 wherein R 11 is phenyl, R 12 is ethoxy or NHR 13 , wherein R 13 is methyl or phenyl, n is 1 and R 10 is hydrogen.

Claim 9

The element of claim 1 wherein R 12 is O and completes a 6-membered ring fused to the benzene

Claim 10

The element of claim 1 wherein R 12 is NR 13 R 14 , wherein each R 13 and is methyl or R 13 is ethyl and R 14 is phenyl.

Claim 11

The element of claim 1 wherein R 12 is NR 13 R 14 , wherein R 13 and R 14 are joined together to form, along with the nitrogen to which they are attached, a pyrrolidine or morpholine ring.

Claim 12

The element of claim 1 wherein R 15 and R 16 are each ethyl, X is OCH 3 , J is CO, R 17 and R 18 are each CH 3 , and R 19 is C 4 H 9 -t.

Claim 13

The element of claim 1 wherein R 15 and R 16 are each ethyl, X is OCH 3 , J is CO, R 17 is CH 3 , R 18 is CH 2 CHOHCH 3 , and R 19 is C 4 H 9 -t.

Claim 14

The element of claim 1 wherein said dye-donor element contains an infrared-absorbing dye in said dye layer.

Claim 15

In a process of forming a dye transfer image comprising imagewise-heating a black dye-donor element comprising a support having thereon a dye layer comprising a mixture of at least one cyan, magenta and yellow dyes dispersed in a polymeric binder, at least one of the cyan dyes having the formula: ##STR43## wherein: R 1 and R 2 each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substitute or unsubstituted cycloalkyl group having from about 5 to about 7 carbon atoms or a substituted or unsubstituted allyl group; with the proviso that R 1 and R 2 cannot both be hydrogen; or R 1 and R 2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R 1 and R 2 can be combined with an R 3 to form a 5- to 7-membered heterocyclic ring; each R 3 independently represents substituted or unsubstituted alkyl, cycloalkyl or allyl as described above for R 1 and R 2 , alkoxy, aryloxy, halogen, thiocyano, acylamido, ureido, alkylsulfonamido, arylsulfonamido, allthio, arylthio or trifluoromethyl; or any two of R 3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R 3 may be combined with either or both of R 1 and R 2 to complete a 5- to 7-membered ring; m is an integer of from 0 to 4; R 4 represents hydrogen or an electron withdrawing group; R 5 represents an electron withdrawing group, a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms or a substituted or unsubstituted hetaryl group having from about 5 to about 10 atoms; R 6 and R 7 each independently represents an electron withdrawing group; and R 6 and R 7 may be combined to form the residue of an active methylene compound; and at least one of the yellow dyes having the formula: ##STR44## wherein R 9 and R 11 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; or an aryl group having from about 6 to about 10 carbon atoms; or R 8 and R 9 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; or either or both of R 8 and R 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; R 10 represents hydrogen; a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; carbamoyl; or alkoxycarbonyl; R 12 represents 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; NHR 13 NR 13 R 14 or the atoms necessary to complete a 6-membered ring fused to the benzene ring; R 13 and R 14 each independently represents any of the groups for R 8 ; or R 13 and R 14 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; n is a positive integer from 1 to 5; and G represents a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 10 carbon atoms; halogen; aryloxy; or represents the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; and at least one of the magenta dyes having the formula: ##STR45## wherein: R 15 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 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 16 forms a 5- or 6-membered ring; R 16 is any of the groups for R 15 or represents the atoms which when taken together with X forms a 5- or 6-membered ring; Y is R 15 , an alkoxy group of from 1 to about 4 carbon atoms, hydrogen, halogen, or NHJR 17 ; R 17 is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; J is CO, CO 2 , --SO 2 -- or CONR 20 --; R 18 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; R 19 is hydrogen, cyano, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; and R 20 is hydrogen or R 18 .

Claim 16

In a process of forming a dye transfer image comprising imagewise-heating a black dye-donor element comprising a support having thereon a dye layer comprising a mixture of at least one cyan, magenta and yellow dyes dispersed in a polymeric binder, at least one of the cyan dyes having the formula: ##STR43## wherein: R 1 and R 2 each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substitute or unsubstituted cycloalkyl group having from about 5 to about 7 carbon atoms or a substituted or unsubstituted allyl group; with the proviso that R 1 and R 2 cannot both be hydrogen; or R 1 and R 2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R 1 and R 2 can be combined with an R 3 to form a 5- to 7-membered heterocyclic ring; each R 3 independently represents substituted or unsubstituted alkyl, cycloalkyl or allyl as described above for R 1 and R 2 , alkoxy, aryloxy, halogen, thiocyano, acylamido, ureido, alkylsulfonamido, arylsulfonamido, allthio, arylthio or trifluoromethyl; or any two of R 3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R 3 may be combined with either or both of R 1 and R 2 to complete a 5- to 7-membered ring; m is an integer of from 0 to 4; R 4 represents hydrogen or an electron withdrawing group; R 5 represents an electron withdrawing group, a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms or a substituted or unsubstituted hetaryl group having from about 5 to about 10 atoms; R 6 and R 7 each independently represents an electron withdrawing group; and R 6 and R 7 may be combined to form the residue of an active methylene compound; and at least one of the yellow dyes having the formula: ##STR44## wherein R 9 and R 11 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; or an aryl group having from about 6 to about 10 carbon atoms; or R 8 and R 9 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; or either or both of R 8 and R 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; R 10 represents hydrogen; a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; carbamoyl; or alkoxycarbonyl; R 12 represents 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; NHR 13 NR 13 R 14 or the atoms necessary to complete a 6-membered ring fused to the benzene ring; R 13 and R 14 each independently represents any of the groups for R 8 ; or R 13 and R 14 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; n is a positive integer from 1 to 5; and G represents a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 10 carbon atoms; halogen; aryloxy; or represents the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; and at least one of the magenta dyes having the formula: ##STR45## wherein: R 15 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 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 16 forms a 5- or 6-membered ring; R 16 is any of the groups for R 15 or represents the atoms which when taken together with X forms a 5- or 6-membered ring; Y is R 15 , an alkoxy group of from 1 to about 4 carbon atoms, hydrogen, halogen, or NHJR 17 ; R 17 is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; J is CO, CO 2 , --SO 2 -- or CONR 20 --; R 18 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; R 19 is hydrogen, cyano, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; and R 20 is hydrogen or R 18 .

Claim 17

The process of claim 14 wherein said dye-donor element contains an infrared-absorbing dye in said dye layer.

Claim 18

In a thermal de transfer assemblage comprising: a) a black dye-donor element comprising a support having thereon a dye layer comprising a mixture of cyan, yellow and magenta dyes dispersed in a polymeric binder, and b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said black dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein at least one of the cyan dyes has the formula: ##STR46## wherein R 1 and R 2 each independently represents hydrogen; 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 or a substituted or unsubstituted allyl group; with the proviso that R 1 and R 2 cannot both be hydrogen; or R 1 and R 2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R 1 and R 2 can be combined with an R 3 to form a 5- to 7-membered heterocyclic ring; each R 3 independently represents substituted or unsubstituted alkyl, cycloalkyl or allyl as described above for R 1 and R 2 , alkoxy, aryloxy, halogen, thiocyano, acylamido, ureido, alkylsulfonamido, arylsulfonamido, alkylthio, arylthio or trifluoromethyl; or any two of R 3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R 3 may be combined with either or both of R 1 and R 2 to complete a 5- to 7-membered ring; m is an integer of from 0 to 4; R 4 represents hydrogen or an electron withdrawing group; R 5 represents an electron withdrawing group, a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms or a substituted or unsubstituted hetaryl group having from about 5 to about 10 atoms; R 6 and R 7 each independently represents an electron withdrawing group; and R 6 and R 7 may be combined to form the residue of an active methylene compound; and at least one of the yellow dyes having the formula: ##STR47## wherein: R 8, R 9 and R 11 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; or an aryl group having from about 6 to about 10 carbon atoms; or R 8 and R 9 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; or either or both of R 8 and R 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; R 10 represents hydrogen; a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; carbamoyl; or alkoxycarbonyl; R 12 represents 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; NHR 13 ; NR 13 R 14 or the atoms necessary to complete a 6-membered ring fused to the benzene ring; R 13 and R 14 each independently represents any of the groups for R 8 ; or R 13 and R 14 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; n is a positive integer from 1 to 5; and G represents a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 10 carbon atoms; halogen; aryloxy; or represents the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; and at least one of the magenta dyes having the formula: ##STR48## wherein: R 15 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 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 16 forms a 5- or 6-membered ring; R 16 is any of the groups for R 15 or represents the atoms which when taken together with X forms a 5- or 6-membered ring; Y is R 15 , an alkoxy group of from 1 to about 4 carbon atoms, hydrogen, halogen, or NHJR 17 ; R 17 is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; J is CO, CO 2 , --SO 2 -- or CONR 20 --; R 18 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; R 19 is hydrogen, cyano, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; and R 20 is hydrogen or R 18 .

Claim 19

In a thermal de transfer assemblage comprising: a) a black dye-donor element comprising a support having thereon a dye layer comprising a mixture of cyan, yellow and magenta dyes dispersed in a polymeric binder, and b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said black dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein at least one of the cyan dyes has the formula: ##STR46## wherein R 1 and R 2 each independently represents hydrogen; 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 or a substituted or unsubstituted allyl group; with the proviso that R 1 and R 2 cannot both be hydrogen; or R 1 and R 2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring; or either or both of R 1 and R 2 can be combined with an R 3 to form a 5- to 7-membered heterocyclic ring; each R 3 independently represents substituted or unsubstituted alkyl, cycloalkyl or allyl as described above for R 1 and R 2 , alkoxy, aryloxy, halogen, thiocyano, acylamido, ureido, alkylsulfonamido, arylsulfonamido, alkylthio, arylthio or trifluoromethyl; or any two of R 3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring; or one or two of R 3 may be combined with either or both of R 1 and R 2 to complete a 5- to 7-membered ring; m is an integer of from 0 to 4; R 4 represents hydrogen or an electron withdrawing group; R 5 represents an electron withdrawing group, a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms or a substituted or unsubstituted hetaryl group having from about 5 to about 10 atoms; R 6 and R 7 each independently represents an electron withdrawing group; and R 6 and R 7 may be combined to form the residue of an active methylene compound; and at least one of the yellow dyes having the formula: ##STR47## wherein: R 8, R 9 and R 11 each independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; or an aryl group having from about 6 to about 10 carbon atoms; or R 8 and R 9 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; or either or both of R 8 and R 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; R 10 represents hydrogen; a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; carbamoyl; or alkoxycarbonyl; R 12 represents 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; NHR 13 ; NR 13 R 14 or the atoms necessary to complete a 6-membered ring fused to the benzene ring; R 13 and R 14 each independently represents any of the groups for R 8 ; or R 13 and R 14 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring; n is a positive integer from 1 to 5; and G represents a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 10 carbon atoms; halogen; aryloxy; or represents the atoms necessary to complete a 5- or 6-membered ring, thus forming a fused ring system; and at least one of the magenta dyes having the formula: ##STR48## wherein: R 15 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 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 16 forms a 5- or 6-membered ring; R 16 is any of the groups for R 15 or represents the atoms which when taken together with X forms a 5- or 6-membered ring; Y is R 15 , an alkoxy group of from 1 to about 4 carbon atoms, hydrogen, halogen, or NHJR 17 ; R 17 is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; J is CO, CO 2 , --SO 2 -- or CONR 20 --; R 18 is a substituted or unsubstituted alkyl or allyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; R 19 is hydrogen, cyano, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms; and R 20 is hydrogen or R 18 .

Claim 20

The assemblage of claim 16 wherein said dye-donor element contains an infrared-absorbing dye in said dye layer.