Which Black Pigment?

FotoDave (FotoDave@aol.com)
Fri, 23 Jan 1998 11:34:49 -0500 (EST)

What black pigment do you use in your pigment printing? I always thought that
black is a relatively cheap pigment and all of them are archival, but when I
took a closer look, I was surprised. I have in front of me W&N Designer
Gouache, Jet Black, and the permanence is A, with their highest at AAA. I
think their Mars Black is AA. Holbeins water color Lamp black is rated at ***
(their highest rating).

Also, can you tell the difference visually when you change from one black to
another? (lamp black, ivory black, Mars black, Jet black, etc. etc.)