| 摘要 |
<p>Dye donor element (A) for laser-induced thermal dye transfer comprises a support carrying a dye layer comprising an image dye in a binder, associated with an infrared absorbing material consisting of a telluro- or seleno-squarylium dye of formula (I). In (I) R1-R4 is H or opt. substd. alkyl, aryl or heteroaryl; R5,R6 are each as R1-R4 or halogen, CN, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, alkoxycarbonyl, sulphonyl, carbamoyl, acyl, acylamido, alkylamino or arylamino; X is Se or Te; Y is O,S, Se,Te,TeCl2 or TeBr2; provided that when R1-R4 = t-Bu and X=Y=Se, then R5 and R6 are not both H; and when X=Se, Y=O and R1-R4 = t-Bu, then R5 and R6 are not both H. (I) is pref. in the dye layer. Also claimed are an image-forming process consisting of contacting (A) with a dye-receiving element (B) comprising a support carrying a polymeric dye image receiving layer, image-wise heating (A) with a laser and transferring the dye image to (B); and a dye transfer assembly consisting of (A) supported with (B), with the dye layer in contact with the image-receiving layer.</p> |
