In times of forced confinement my mixing experiments proceed.
With the last Pelikan purchase (M101N Blue-grey) another 50 ml bottle of Royal blue came bundled in the box.
So I'm checking out another Royal mix...
This time I started with the aim to slightly darken Royal blue, but not to the extent of a blue black.
Some of my Edelstein mixes have worked quite well (in terms of ink compatibilities) and I was curious to see whether mixing an Edelstein with a 4001 would maintain the same compatibility (they are both Pelikan inks after all).
I used my by now standard method of two clean metered syringes to add Royal blue and the mixing ink to a small clean glass container.
The chosen mixing ink is Edelstein Tanzanite. This ink is a very dark blue, with a very slight tendency to purple. On paper it can look almost black.
The starting ratio was 5 parts Royal blue (2.5 ml) to 1 part Tanzanite (0,5 ml), the resulting 3 ml are about enough to fill 3 converters.
I had planned to try adding further amounts of Tanzanite but I found the resulting mix to be sufficiently dark (and if one of the scopes is using up Royal blue, saving Tanzanite is a good secondary result).
As always it's difficult to show colour comparisons on screen, nonetheless the comparison with the starting inks does give an indication.
Essentially the resulting colour is notably darker than Royal Blue, and has a slight purple red tone that reminds me of Navy blue (difficult to spot in the photo).
The paper shown here is a typical copy paper (Amazon Basics 80g which is made in France), I have a comparison on glossy paper which is quite different, perhaps will show in a next post.
The resulting ink is also crystal clear. i.e. no lumps or any other type of reaction, even after several days in the bottle, which make me claim the mix as very safe to use.
I am also expecting that the Tanzanite addition will limit the typical fading of Royal blue.
The behaviour of the ink is in every way comparable to Royal blue, very nice flow, and some shading especially on more glossy paper.