Yellow dye mixture for thermal color proofing

Details Yellow dye mixture for thermal color proofing Yellow dye mixture for thermal color proofing

1990-12-14

1991-09-03

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428913, 428914, 430200, 430201, 430945, B41M 5035, B41M 526

Patent

active

050455249

ABSTRACT:
A yellow dye-donor element for thermal dye transfer comprises a support having thereon a dye layer comprising a mixture of yellow dyes dispersed in a polymeric binder, at least one of the yellow dyes having the formula: ##STR1## wherein: each R.sup.1 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; an aryl group of from about 6 to about 10 carbon atoms; a hetaryl group of from 5 to 10 atoms; acyl; arylsulfonyl; aminocarbonyl; aminosulfonyl; fluorosulfonyl; halogen; nitro; alkylthio; or arylthio;

REFERENCES:
patent: 3923776 (1975-12-01), Gnad
patent: 3998803 (1976-12-01), Burkhard et al.
patent: 4914077 (1990-04-01), Shuttleworth et al.

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