Storage-stable photoimageable compositions with improved leuco dye

摘要

Storage-stable photoimageable leuco dye/photooxidant compositions and imaging processes utilizing these compositions are disclosed. These compositions comprise deuterated leuco compounds, e.g., deuterated aminotriarylmethanes, wherein the extent of deuteration is preferably at least 60%. These new compositions and the processes utilizing these new compositions afford improved monochrome images having enhanced film stabilities and image contrast characteristics, wherein desirable higher optical densities in imaged areas (Dimaged) and desirable lower optical densities in unimaged areas (Dunimaged, Dfixed, and Dforced) are simultaneously both achieved in accordance with the compositions and processes of the instant invention.