Digital BW, The Print

Bob Michaels wrote:

<My question is why do my Black Only prints look as good as my
hextones? (1280, FSN-E inks, Woolf workflow and curves) Both prints
and 21 step wedges show smooth transitions and very small dots either
BO or hex.>

What are FSN-E inks?

In reading this thread, and others related to it, I also find mention of LC
and LM inks with 1.3 dilution.  What are they, please?

Thanks in advance.

Norm
normsams@...