Chromeme dyes for thermal imaging

Details Chromeme dyes for thermal imaging Chromeme dyes for thermal imaging

1996-09-16

1998-01-27

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

428195, 428480, 428913, 428914, 430201, 430292, 430324, 430945, 430964, B41M 5035, B41M 538

Patent

active

057122237

ABSTRACT:
A dye-donor or recording element comprising a support having thereon a dye layer comprising a yellow dye in a polymeric binder, the dye having the formula: ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each independently represents hydrogen, halogen, hydroxy, nitro, a substituted or unsubstituted alkyl or alkoxy group of from 1 to about 6 carbon atoms, a substituted or unsubstituted phenyl group, an alkylazo group, or an arylazo group;

REFERENCES:
patent: 4866029 (1989-09-01), Evans et al.
Chem. Reviews, vol. 53, p. 151, 1953, by H.H. Jaffe.

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