Lightfastness is the way pigments and dyes react to UV light – if they aren’t lightfast they fade or shift in colour – really not great if you want to sell pieces or want them to last. That's a sale for me, but I do like the colors and permanence, others may have different tastes and priorities.Weird to be presenting lightfast tests in the darkest time of the year but since last summer I have been testing the various inks I use for lightfastness, and here are the results. It is advertised as light-stable (and my use does not contradict it, but YMMV). The ink flows well and is well lubricated. And, surprisingly, they seem to still be that cheap judging from Amazon prices checked right now. Certainly cheaper than Rohrer & Klingner, and for a ISO-certified document ink, certainly very cheap. They tend to be fairly saturated, but wash off rather well (you do not need too many flushes to get water wash out clean off the pen).Īs for the price, the "cheap" price you got was likely not a sale, they usually are very cheap (last time -some years ago- they were ~3-5 EUR for a 50ml bottle off eBay). This is not as bad as BSB, and similarly, is easy to clean with bleach. Of notice, when cleaning the pen, I find that these inks tend to stain the porcelain/steel sinks unless one is careful to clean them immediately, and even so, often require some rubbing. The Black seems to also darken somewhat with aging in the pen but it being black is less noticeable. In any case, once laid down and dried, I find the tone does not change any more and stays as is permanently. Personally, I do find the "fresh" hue more vibrant and lively, and the "pen-aged" tone more serious and formal. However, if you are like me, the kind of person that can sometimes leave a pen inked for long periods of time with a single load, you may notice that as ink "ages" (likely it is oxidized) inside the pen, it tends to turn darker and after several weeks may write in a darker blue (closer to Montblanc Permanent blue) tone. What I mean is that after you fill in the pen, the color it lies down tends to be a brilliant light teal blue, vibrant and attractive, that dries with some dullness, not to the light chalky shade of Noodler's Polar Blue, but rather a hue with more "character". It writes kind of teal when "fresh", and goes to "dark blue" when "aged" in the pen. Now, as for color, I find the black ink has a murky greenish undertone, and it tends to write like a very dark grey. ![]() worked great to take notes in tropical places where conditions (like humidity, rain, warmth.) were far from optimal. Last time, I think I ordered 6 bottles of each. I think they were among the first (if not the first) inks to get the certification. I didn't yet test for sunlight exposure or other chemicals, but as far as water and bleach resistance goes it performed excellent and it really looks like a proper document ink.īoth, blue and black are ISO certified registrar inks. Overall, I think this is a great ink and the make-or-break point is whether you like the color or not. The broad nib got a bit of shading out in a similar way Pilot Iroshizuku's Tsuyu-Kusa does. Was easy to wash off from my pens and my skin. ![]() It was not affected at all by either the water or the bleach, even with just a couple of minutes of dry time. Here's a picture of a sheet of Rhodia paper with a bit of writing, the color on a 1st, 2nd and 3rd layer of ink, dry time, and some resistance test against bleach (on the left) and water (on the right), compared to some other inks I have.Īnd here's a bit of writing on Clairefontaine paper, compared to Noodler's Liberty's Elysium. It seems to do OK on cheap copy paper, though it did come through the other side in some spots with the broad nib. I was not expecting it, and I don't really hate the color, but it was a little bit disappointing. It takes a little while to dry on Rhodia paper, and has a really nice vibrant color while it's wet on the page, but as soon as it tries it seems as the paper sucks a lot of the color out of the ink and all that's left is a really pale shade of blue. The ink flows really well and writes smooth, I tested it with a Pilot Kaküno with a fine nib, and a Kaweco Sport with a broad. The ink comes in a pretty utilitarian 50ml plastic bottle, but it has a nice shape and a neck wide enough to fit any pen. I just so happened to find some bottles of Koh-I-Noor Document Ink in blue for cheap, I've found very little information and pictures on this ink so I took the only logical next step of buying a couple of bottles.
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