In my quest for blue-black inks to replace Parker Quink (which I have used since the 70s) I have been trying a few .
Prussian Blue is a classic color, developed in Germany sometime in the 1700s (thus the name); it is an Iron compound (Iron Ferrycianide) which was easy to make with the 1970s chemistry kits that I had.
/// RGB color should be [0,49,83] /////
Diamine has made an ink to resemble this color; I got a small bottle to test it as it looked good on the screen
This is a very nice ink, I like the gray-blue tone that develops over a few days. It is a great color when the content matters, very subdued color that doesn't take away from what you write.
I think there is some real prussian blue pigment in there, as the ink goes in blue and becomes gray blue after a day or three depending on the paper. I have jotted in a few papers and depending on the quality of it it becomes more or less blue.
It behaves very nicely in a modern pen (Bexley Flat Top) which was a healthy ink flow; dries relatively quick in my notebooks (so far) with the obvious exception of glossy paper which takes a minute or so.
My hand written review follows:
DPrussian.jpg
Watercolor crayon @technique tuesday
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