Magenta dye-donor element used in thermal dye transfer

Claim 2

A magenta dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a magenta dye dispersed in a polymeric binder, said magenta dye having the formula: ##STR31## wherein R 1 and R 2 may each independently be hydrogen, substituted or unsubstituted alkyl or allyl of from 1 to about 6 carbon atoms, substituted or unsubstituted cycloalkyl of from about 5 to about 7 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms; or R 1 and R 2 may be taken together to form a ring; or a 5- or 6-membered heterocyclic ring may be formed with R 1 or R 2 , the nitrogen to which R 1 or R 2 is attached, and either carbon atom ortho to the carbon attached to said nitrogen atom; R 3 may be hydrogen, substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms, alkylthio or halogen; J may be substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms or NHA, where A is an acyl or sulfonyl radical; and Q may be cyano, thicyanato, alkylthio or alkoxycarbonyl.

Claim 3

The element of claim 1 wherein R 3 is methyl and Q is CN.

Claim 4

The element of claim 1 wherein J is --NHCOCH 3 .

Claim 5

The element of claim 1 wherein R 1 is C 2 H 5 and R 2 is CH 2 C 6 H 5 , cyclohexyl or CH 2 CH 2 O 2 CCH 3 .

Claim 6

The element of claim 1 wherein R 1 and R 2 are each n--C 3 H 7 or C 2 H 5 .

Claim 7

The element of claim 1 wherein a dye-barrier layer is located between said dye layer and said support.

Claim 8

The element of claim 1 wherein the side of the support opposite the side bearing said dye layer is coated with a slipping layer comprising a lubricating material.

Claim 9

The element of claim 1 wherein said support comprises poly(ethylene terephthalate).

Claim 10

The element of claim 1 wherein said dye layer comprises sequential repeating areas of cyan, yellow and said magenta dye.

Claim 11

In a process of forming a magenta dye transfer image comprising imagewise-heating a dye-donor element comprising a support bearing a dye layer comprising a magenta dye dispersed in a polymeric binder and transferring a magenta dye image to a dye-receiving element to form said magenta dye transfer image, the improvement wherein said magenta dye comprises a substituted 5-arylazoisothiazole having the formula: ##STR32## wherein R 1 and R 2 may each independently be hydrogen, substituted or unsubstituted alkyl or allyl of from 1 to about 6 carbon atoms, substituted or unsubstituted cycloalkyl of from about 5 to about 7 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms; or R 1 and R 2 may be taken together to form a ring; or a 5- or 6-membered heterocyclic ring may be formed with R 1 or R 2 , the nitrogen to which R 1 or R 2 is attached, and either carbon atom ortho to the carbon attached to said nitrogen atom; R 3 may be hydrogen, substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms, alkylthio or halogen; J may be substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms or NHA, where A is an acyl or sulfonyl radical; and Q may be cyano, thiocyanato, alkylthio or alkoxycarbonyl.

Claim 12

In a process of forming a magenta dye transfer image comprising imagewise-heating a dye-donor element comprising a support bearing a dye layer comprising a magenta dye dispersed in a polymeric binder and transferring a magenta dye image to a dye-receiving element to form said magenta dye transfer image, the improvement wherein said magenta dye comprises a substituted 5-arylazoisothiazole having the formula: ##STR32## wherein R 1 and R 2 may each independently be hydrogen, substituted or unsubstituted alkyl or allyl of from 1 to about 6 carbon atoms, substituted or unsubstituted cycloalkyl of from about 5 to about 7 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms; or R 1 and R 2 may be taken together to form a ring; or a 5- or 6-membered heterocyclic ring may be formed with R 1 or R 2 , the nitrogen to which R 1 or R 2 is attached, and either carbon atom ortho to the carbon attached to said nitrogen atom; R 3 may be hydrogen, substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms, alkylthio or halogen; J may be substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms or NHA, where A is an acyl or sulfonyl radical; and Q may be cyano, thiocyanato, alkylthio or alkoxycarbonyl.

Claim 13

The process of claim 10 wherein said support is poly(ethylene terephthalate) which is coated with sequential repeating areas of cyan, yellow and said magenta dye, and said process steps are sequentially performed for each color to obtain a three-color dye transfer image.

Claim 14

In a thermal dye transfer assemblage comprising: (a) a magenta dye-donor element comprising a support having thereon a dye layer comprising a magenta dye 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 magenta dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said magenta dye has the formula: ##STR33## wherein R 1 and R 2 may each independently be hydrogen, substituted or unsubstituted alkyl or allyl of from 1 to about 6 carbon atoms, substituted or unsubstituted cycloalkyl of from about 5 to about 7 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms; or R 1 and R 2 may be taken together to form a ring; or a 5- or 6-membered heterocyclic ring may be formed with R 1 or R 2 , the nitrogen to which R 1 or R 2 is attached, and either carbon atom ortho to the carbon attached to said nitrogen atom; R 3 may be hydrogen, substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms, alkylthio or halogen; J may be substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms or NHA, where A is an acyl or sulfonyl radical; and Q may be cyano, thiocyanato, alkylthio or alkoxycarbonyl.

Claim 15

In a thermal dye transfer assemblage comprising: (a) a magenta dye-donor element comprising a support having thereon a dye layer comprising a magenta dye 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 magenta dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said magenta dye has the formula: ##STR33## wherein R 1 and R 2 may each independently be hydrogen, substituted or unsubstituted alkyl or allyl of from 1 to about 6 carbon atoms, substituted or unsubstituted cycloalkyl of from about 5 to about 7 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms; or R 1 and R 2 may be taken together to form a ring; or a 5- or 6-membered heterocyclic ring may be formed with R 1 or R 2 , the nitrogen to which R 1 or R 2 is attached, and either carbon atom ortho to the carbon attached to said nitrogen atom; R 3 may be hydrogen, substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms, alkylthio or halogen; J may be substituted or unsubstituted alkyl of from 1 to about 6 carbon atoms, substituted or unsubstituted aryl of from about 5 to about 10 carbon atoms or NHA, where A is an acyl or sulfonyl radical; and Q may be cyano, thiocyanato, alkylthio or alkoxycarbonyl.

Claim 16

The assemblage of claim 12 wherein R 3 is methyl and Q is CN.

Claim 17

The assemblage of claim 12 wherein J is --NHCOCH 3 .

Claim 18

The assemblage of claim 12 wherein R 1 is C 2 H 5 and R 2 is CH 2 C 6 H 5 , cyclohexyl or CH 2 CH 2 O 2 CCH 3 .

Claim 19

The assemblage of claim 12 wherein R 1 and R 2 are each n--C 3 H 7 or C 2 H 5 .

Claim 20

The assemblage of claim 12 wherein said support of the dye-donor element comprises poly(ethylene terephthalate).