申请人:Eastman Kodak Company
公开号:US05079213A1
公开(公告)日:1992-01-07
A dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a magenta pyrazolylazoaniline dye having the formula: ##STR1## wherein: R.sup.1 and R.sup.2 each independently represents hydrogen, a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms or an allyl group, with the proviso that R.sup.1 and R.sup.2 may not both be hydrogen at the same time; or R.sup.1 may be joined together with X to complete a 5- to 6-membered heterocyclic ring; X represents hydrogen, R.sup.5, or OR.sup.5, or can be joined together with R.sup.1 as described above; Y represents hydrogen, R.sup.6, OR.sup.6, halogen, or NHJR.sup.6 ; J represents --CO--, --CO.sub.2 --, --SO.sub.2 --, or --CONR.sup.4 --; R.sup.3 represents a substituted or unsubstituted alkyl or allyl group as described above for R.sup.1 and R.sup.2 ; or a substituted or unsubstituted aryl or hetaryl group of from 5 to about 10 atoms; each R.sup.4 independently represents hydrogen or R.sup.3 ; R.sup.5 represents alkyl, allyl, aryl or hetaryl as described above for R.sup.3 ; and R.sup.6 represents alkyl, allyl, aryl or hetaryl as described above for R.sup.3 ; with the proviso that one of R.sup.3, R.sup.4, R.sup.5 or R.sup.6 is an alkyl group of 1 to about 6 carbon atoms substituted with a group capable of intermolecular hydrogen bonding.
一种用于热转印的染料给体元件,包括一种支撑材料,其上分散着一种染料和一种聚合物粘合剂,所述染料包括一种品红色吡唑偶氮基苯胺染料,其化学式为:##STR1##其中:R1和R2各自独立地表示氢、取代或未取代的烷基,其碳原子数为1至约6,或烯丙基,但有条件是R1和R2不能同时为氢;或者R1可以与X结合形成一个5至6成员的杂环环;X表示氢、R5或OR5,或者可以与R1结合如上所述;Y表示氢、R6、OR6、卤素或NHJR6;J表示--CO--、--CO2--、--SO2--或--CONR4--;R3表示如上所述的取代或未取代的烷基或烯丙基,或者从5到约10个原子的取代或未取代的芳基或杂芳基;每个R4独立地表示氢或R3;R5表示如上所述的烷基、烯丙基、芳基或杂芳基;R6表示如上所述的烷基、烯丙基、芳基或杂芳基;但有条件是R3、R4、R5或R6中的一个是1至约6个碳原子的烷基,其被能进行分子间氢键的基团取代。