I guess I should have been more exact. The question is does Herbin black dry out faster than other inks??
I have a Faggionato pen with a soft titanium nib that I'm trying to "debug" - flow problems with a flex nib and a plastic feed. I've been trying different inks.
One suggestion was to try Herbin ink - and in fact it worked great for a few days. But then it completely dried on the nib, and would have required a water rinse to start. Other inks didn't do this.
So the question (as I try to make this pen the best it can be) is this likely just the way Herbin ink behaves? Do people who use this ink note a problem???
Herbin uses a different coloring formulation (vegetal colors, instead of aniline dyes). Maybe this accounts for the difference??