Once upon a time in fpn, someone asked what was everyone's favorite ink color or what would it be if it didn't exist. I said, "harbor twilight." I wanted a blue of a darkening twilight sky that was also waterproof (or water-resistant).
I've seen blue inks that have come close, but not close enough, until this ink - created by a Ph.D. chemistry student from Warsaw who brands his inks KWZ Inks. He and his partner sat at the table next to mine at the Poland Pen Show in Katowice, and if I had returned on Sunday, I would have taken a dozen photos and bought more inks.
I can order the inks, though, so I am not berating myself too badly.
I only met KWZI at the show, but he told me that he is a member of fpn who isn't particularly active here; he's more active on the Polish fountain pen board, and he's busy making these gorgeous inks. I will ask him to take a photo of his ink colors and share them with us - along with ordering information or details about his inks.
At least four of his inks darken - over a day, over a month. This ink. Blue #3, isn't one of them, but what's better is that it stays the same dark, beautiful blue and doesn't change to teal, for instance (I'm looking at you, Waterman Mystere Bleu). There was testing of the waterproofness at the show, and the blue held fast, and while there was some washing off, legibility was not affected at all, and the washed ink was still blue. The water-resistant blue inks I've tried and tested leave black ink, which, you know, is better than nothing. But this blue remains blue.
As the photos show, I'm using Blue #3 (I love this name) in a Pelikan Toledo 710 with a Mottishaw stub fine nib on Tomoe River Paper. I scribbled notes on a cheap notepad - no feathering. I didn't test the ink more than that, and this is not a review or an "Inky Thought." It's more of a Show-and-Tell.
I love this blue ink!