RE: archivalness of gum
On Sat, 22 Dec 2007, Dave S wrote:
About 10 years ago on the list we ran a thread on indigo... I had some esoteric info about it from a book on color... now buried in the morass... but even the mixed indigo is one of the strongest watercolors in the kit & comes through really strong & beautiful in gum.Same with indigo which originally was made from indigo plant. It has a beautiful purple tone, but it is also fugitive. Today's indigo is a mixture of prussian blue and quinacridone red. Those who are used to true indigo sometimes complain that the synthetic indigo is too colorful (the true indigo is more muted), but this can be fixed easily by adding just a touch of black; so today's indigo is also a hue name.
Now 2 hours later, I gotta do what I logged on for... (some serious community "business")... but it's been swell, thanks to all & joyeux noel.