I am having issues getting a nice good quality black colour dye sublimated onto fabric for flags, banners etc. The colour i am getting is grey / greenish. I am printing on a Epson Pro Stylis 9450 CMYK colours. Any help would be appreciated.
Greenish or Grey usually happens when the heat temp is too high or dwell time is too long. This can also happen with particular materials that cannot handle heat well.
Dye Sublimating the colour black 
