?
The dye is easy, Food Black 2 ,
Other questions are the possible use of a Tween, or other Surfactant? or/& something else, possibly Glycerol ?
?
For 1st tests, a test ink does not have to be perfect, just hoping it will work reasonably well, and be paper fast.
Just don't want to gum up the only empty ThinkJet cartridge that I have, ... would quickly put an end to testing in my 2225 printer, lol.
?
Thus, more examples of MSDS sheets ,
?? from the Hp ThinkJet Cartridge ? boxes? ( an inserted slip of paper ), would help,
if anyone can post additional .pdf's of these.
