Thermal print element comprising a magenta 3-aryl-2-arylazo-5-am

Details Thermal print element comprising a magenta 3-aryl-2-arylazo-5-am Thermal print element comprising a magenta 3-aryl-2-arylazo-5-am

1989-12-11

1990-06-12

Hess, Bruce H.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

8471, 428412, 428480, 428913, 428914, 503227, B41M 535, B41M 526, B32B 310

Patent

active

049332260

ABSTRACT:
A thermal print element comprising a support having thereon a layer containing a thermally-transferred dye image, the dye image comprising a magenta dye having the following formula: ##STR1## wherein: wherein R.sup.1 and R.sup.2 are each independently hydrogen or a substituted or unsubstituted alkyl, cycloalkyl, or aryl group, or may be joined together to form a 5- or 6-membered, substituted or unsubstituted, heterocyclic ring system;

REFERENCES:
patent: 4250090 (1981-02-01), Eilingsfeld et al.
patent: 4483795 (1984-11-01), Eilingsfeld et al.
patent: 4695287 (1987-09-01), Evans et al.
patent: 4748149 (1988-05-01), Byers
patent: 4769360 (1988-09-01), Evans et al.

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