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david-p posted a topic in Inky ThoughtsI have read recommendations on several websites to avoid specific inks in vintage pens. Examples given are those that have pigments, most of the Noodler catalogue, and, curiously enough, Iroshizuku inks. This last surprised me, as they are not at all water-fast; but the writer claimed that they are highly alkaline. Recommended inks are usually Waterman, Parker, etc, whose range of colours is not very exciting. How about Lamy and Diamine? But more to the point, has anyone in our community actually done tests to determine the pH value of currently available inks? (Doing so is obviously not as simple as dipping litmus paper in the ink!) Further, what constituents in what inks make them bad for vintage pens? A scientific study would be very useful, so that I can with a good conscience use colours other than black and blue in my Parker pens, for instance. David
This is a review of the now-defunct Swedish ink manufacturer Rosendahls, their Cadet Blue fountain pen ink, of the Scrivil series, which appears to have a military theme. Since the ink is no longer in production, it can only be found vintage, although several FPN'ers have found several here & there, it is probably a challenge to acquire. Now, with that said, let's see how it looks..! The bottle looks a lot like the normal Pelikan ink bottle, and can be sat slightly on its side to allow for easy emptying when the ink level starts to get low, plus the opening is of a good size. The first writing test is with a no-name "Iridium Point Germany" pen with an EF nib, see discussions elsewhere about these pens. The ink flows very nicely, with good lubrication, and makes a potentially scratchy pen nice & smooth to write with. Color is a pale blue, I'd even call it a baby blue, which is too pale in my eyes for everyday writing. However, there is no feathering, the letters have clear definition and no shading is seen here. Second writing test is with a Jinhao X450 with the factory M nib, which is infamous for writing wet. Also here, good ink flow, nice lubrication and it just writes very well. Like the previous test, we see no feathering and each letter is clearly defined. But look at the color! This is now a medium blue instead, which is a nice surprise. It indicates a dynamic blue which will probably shade well. More on that later. If you look *very* closely, you can see shading in the letters here, but only by zooming in on a hi-res pic. Third writing test is just a quick experiment with a dip pen, which did not go super well, but still showed that the color deepens as you lay down more ink, and a little border shading is seen, but otherwise it is an example of how little I know about dip pens. Next comes the ink swab, where you clearly see color difference according to amount of ink, and border shading both in the triple layer, near bottom, plus in the circles, left. We see several shades of blue, from baby blue to navy, which is very nice to see in what you might think is just a simple, almost boring, light blue, and so it appears at first glance, but this li'l fella has more layers than an onion! 😃 The water resistance test shows that 90% of the ink goes away from having water dropped on it, making it quite the opposite of water resistant. 🤔 My conclusion is that this is an extremely well-behaved ink, fully functional despite being at least 30 years old, possibly 50, very dynamic in coloring and with great potential for shading. It dries quite quickly when writing normally, 5+ seconds, even on Rhodia paper, and in all the tests I made there was not a single bleed-thru. I had no hard starts or drying ink in the pens used. Since it's not waterproof, I wouldn't call it archival, although it might be UV-resistant, I have no data on that. What I *do* know is that this is an ink which is very easy and pleasant to use, with properties which we might wish were in more modern inks. I will finish with a writing sample inspired by Matt of The Pen Habit, showing a quote from one of my favorite authors. Stay safe, Daneaxe