Infrared absorbing quinoid dyes for dye-donor element used in laser-induced thermal dye transfer
AssigneeEastman Kodak Company
InventorsDerek D. Chapman, Charles D. DeBoer
Life of this patent
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Abstract
A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer which also contains an infrared-absorbing material which is different from the dye, and wherein the infrared-absorbing material is a quinoid dye derived from an anthraquinone or naphthoquinone having the following formula: ##STR1## wherein: Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; each R independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms; m is 4; and n is 2.
Claims18
In a dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer and an infrared-absorbing material which is different from the dye in said dye layer, the improvement wherein said infrared-absorbing material is located in said dye layer and is a quinoid dye derived from an anthraquinone or naphthoquinone having the following formula:
- ##STR5## wherein:
- Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring;
- each R independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms;
- m is 4;
- and
- n is 2.
In a process of forming a laser-induced thermal dye transfer image comprising
- (a) imagewise-heating by means of a laser a dye-donor element comprising a support having thereon a dye layer and an infrared-absorbing material which is different from the dye in said dye layer, and
- (b) transferring a dye image to a dye-receiving element to form said laser-induced thermal dye transfer image,
- the improvement wherein said infrared-absorbing material is located in said dye layer and is a quinoid dye derived from an anthraquinone or naphthoquinone having the following formula:
- ##STR6## wherein:
- Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring;
- each R independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms;
- m is 4;
- and
- n is 2.
In a thermal dye transfer assemblage comprising:
- (a) a dye-donor element comprising a support having a dye layer and an infrared absorbing material which is different from the dye in said dye layer, 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 dye-donor element so that said dye layer is adjacent to said dye image-receiving layer, the improvement wherein said infrared-absorbing material is located in said dye layer and is a quinoid dye derived from an anthraquinone or naphthoquinone having the following formula:
- ##STR7## wherein:
- Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring;
- each R independently represents hydrogen, a substituted or unsubstituted alkyl or alkoxy group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms;
- m is 4;
- and
- n is 2.
Dependencies are inferred from the claim text.