Infrared absorbing bis(chalcogenopyrylo)polymethine dyes for dye-donor element used in laser-induced thermal dye transfer

Infrarot-absorbierende Bis(chalcogenopyrylo)polymethin-Farbstoffe für ein Farbstoff-Donor-Element, das bei der Laser-induzierten Wärme-Farbstoff-Übertragung verwendet wird

Colorants bis(chalcogénopyrylo)polyméthiniques, absorbant l'infrarouge pour élément donneur de colorant utilisé dans le transfert thermique de colorant induit par laser

Abstract

A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer and an inf rared-absorbing material which is different from the dye in the dye layer, characterized in that the infrared-absorbing material is a bis(chalcogenopyrylo)polymethine dye which is located in the dye layer. In a preferred embodiment, the bis(chalcogenopyrylo)polymethine dye has the following formula: wherein: R¹, R² and R³ 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 R¹, R² and R³ groups may be joined together to form a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; or R¹ may be joined to Z¹ to form a fused 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; or R³ may be joined to Z¹ to form a fused 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; Y¹ and Y² each independently represents sulfur, oxygen, tellurium, or selenium, with the methine chain being joined ortho or para to each of Y¹ and Y²; Z¹ and Z² each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; a substituted or unsubstituted aryl or hetaryl group having from 5 to 10 atoms; or the atoms necessary to complete a 5- to 7-membered carbocyclic or heterocyclic ring; each m independently is 1 to 4; n is 1 to 3; and X is a monovalent anion.

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-S63319191-ADecember 27, 1988Showa Denko KkTransfer material for thermal recording
    US-4833123-AMay 23, 1989Sumitomo Chemical Company LimitedYellow dye-donor element used in thermal transfer and thermal transfer and thermal transfer sheet using it

NO-Patent Citations (1)

    Title
    PATENT ABSTRACTS OF JAPAN vol. 13, no. 161 (M-815)(3509) 18 April 1989, & JP-A-63 319191 (SHOWA DENKI K.K.) 27 December 1988,

Cited By (1)

    Publication numberPublication dateAssigneeTitle
    US-5863860-AJanuary 26, 1999Minnesota Mining And Manufacturing CompanyThermal transfer imaging