I've featured De Atramentis Archive Ink before in 2014 when a friend wrote a review for that on my blog. Recently, I discovered that I actually have a bottle of it in my drawer, so maybe I should give my take on it as well.
De Atramentis is a German company that produces handmade fountain pen inks. One of the specialties of De Atramentis is their waterproof coloured fountain pen inks. But today, we're not going to talk about the colour inks, we're going to talk about the Archive Ink.
The Archive Ink is one of two waterproof black inks that De Atramentis make, the other is Document Ink. Both are black and waterproof so I don't know the reasons for having two inks that are essentially similar. Anyway, I can't compare since I don't have the Document Ink.
Here are some writing samples on various paper, written and dried, then washed over with water.
Daler Rowney Aquafine coldpress watercolour paper
This lines have really sharp edges and do not feature. The jaggedness is caused by the texture of the coldpress paper.
Arches 100% cotton coldpress watercolour paper
This paper has more of a fine grain texture and it's a very thirsty paper. I wasn't able to create lines with sharp edges even though wrote really slowly.
Canson coldpress watercolour paper
This paper is much smoother and lines appear bold and have sharp edges. It's a good paper for pen and ink work, but doesn't work too well with watercolour.
Strathmore Writing Paper
The ink works well here too.
I chose the Canson watercolour paper and Strathmore Writing Paper because in my earlier test with Noodler's Bulletproof Black Ink, the ink actually featured on those two paper. As you can see, the De Atramentis performed better, and more consistently across all the paper.
The ink is also totally waterproof when dry, which makes it a suitable ink for use with watercolour or mix media art. The ink also dries fast, well, much faster than Noodler's Bulletproof Black Ink anyway.
Overall, the De Atramentis is an excellent ink. It's said to be safe for fountain pen use, but I do recommend washing out your fountain pens occasionally though as a precaution. There's no mention what the ink is made of.