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INFRARED RAY ABSORBING MEROCYANINE DYE FOR DYE DONATING ELEMENT WHICH IS USED FOR LASER INDUCTION DYE HEAT TRANSFER
INFRARED RAY ABSORBING MEROCYANINE DYE FOR DYE DONATING ELEMENT WHICH IS USED FOR LASER INDUCTION DYE HEAT TRANSFER
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机译:红外吸收的花青染料染料,用于激光诱导染料传热的染料掺合元素
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摘要
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, characterized in that the infrared-absorbing material is a merocyanine dye. In a preferred embodiment, the merocyanine dye has the following formula: CHEM wherein: R represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl or hetaryl group having from 5 to 10 atoms; R1, R2, R3, and R4 each independently represents hydrogen, halogen, cyano, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, alkoxycarbonyl, sulf onyl, carbamoyl, acyl, acylamido, alkylamino, arylamino or a substituted or unsubstituted alkyl, aryl or hetaryl group; or any two of said R, R1, R2, R3 and R4 groups may be joined together to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; A represents hydrogen, -COR, -CO2R, -CONHR, -CONR2, -SO2R, -SO2NHR, -SO2NR2-SR, or -CN; B represents -NHR, -NR2, -OR, -SR or -R; or A or B may be joined together or with R3 or R4 to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; Y represents a dialkyl-substituted carbon atom, a vinylene group, an oxygen atom, a sulphur atom, a selenium atom, a tellurium atom, NR, or a direct bond to the carbon at the R2 position; Z represents the atoms necessary to complete a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; and n is 3 to 5.
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