Infrared absorbing bis(aminoaryl)polymethine dyes for dye-donor

Details Infrared absorbing bis(aminoaryl)polymethine dyes for dye-donor Infrared absorbing bis(aminoaryl)polymethine dyes for dye-donor

1989-06-16

1990-08-21

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428480, 428913, 428914, 430200, 430201, 430202, 430945, B41M 5035, B41M 526

Patent

active

049506390

ABSTRACT:
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 the dye layer, and wherein the infrared-absorbing material is a bis(aminoaryl)polymethine dye. In a preferred embodiment, the bis(aminoaryl)polymethine dye has the following formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represents hydrogen, halogen, cyano, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, alkoxycarbonyl, sulfonyl, carbamoyl, acyl, acylamido, alkylamino, arylamino or a substituted or unsubstituted alkyl, aryl or hetaryl group; or any two of said R.sup.1, R.sup.2 and R.sup.3 groups may be joined together or with an adjacent aromatic ring to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring;

REFERENCES:
patent: 3099630 (1963-07-01), Wildi et al.

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