Tag Archives: Diamine

Diamine Versus the Sun & a pH Test

By on October 20, 2021
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People often ask what my favorite ink brand is, and, more-and-more it is Diamine. Just like the Beatles, Diamine is based out of Liverpool in the United Kingdom. However, they beat the Beatles to the scene by 100 years in 1864.

In all of my experience with the ink, so far, it has been very fountain pen friendly. I’ve had great success with it in modern and vintage pens, plus, it has a zillion different colors for sale. The only things I don’t mess with are their shimmer inks because shimmer inks clog the daylights out of pens.

Diamine blue inks generally hold up pretty well to the sun’s harsh rays. It is a rare feat among blue inks.

When I stumbled into 14 different ink bottles from a collection I knew it was time to do one of our famous inkfast tests and pH tests.

The results are interesting. Although they lose a bit of their luster, most of the blues are pretty tough and don’t let the sun and UV light bully them. Silver Fox barely fades at all. When still fresh looking, three of my favorite blues in production are Diamine’s “Majestic Blue,” “Blue/Black” and “Blue Velvet.” The only blue to really fade much was “Presidential Blue.”

 

Ancient Copper holds its beauty better than most colors, and it is almost pH neutral!

Breaking into some of the more colorful Diamine inks, the sun proves more aggressive. “Ancient Copper” holds up amazingly well, but  “Red Dragon” takes a hit. “Amazing Amethyst” really takes it  hard and almost completely fades out. The very popular “Oxblood” fairs well, but it still fades a bit.

The pH testing surprised us. As a quick reminder, in the world of pH testing a 0 is extremely acidic, 7 is neutral and 14 is extremely alkali or base. We calibrated the testing device and tested the inks at 24ºC.

Diamine Ink Name              pH  Test  Result
Ancient Copper                                   6.7
Red Dragon                                        2.5
Oxblood                                              2.5
Amazing Amethyst                             6.1
Sherwood Green                                4.4
Blue/Black                                          4.1
Oxford Blue                                        3.8
Presidential Blue                                3.2
Majestic Blue                                     4.2
1864 Blue/Black                                4.5
Silver Fox                                          4.0

Before you throw out any ink you might love, please keep in mind that the pH is only a data point. We don’t know what chemicals are in each ink, and we don’t know how their chemical properties will react to your ink sacs or converters. We’ve seen acidic inks used safely in ink sacs for years and neutral inks destroy ink sacs in a matter of months.

That said, we’ve always had great success with Ancient Copper, which is one of our personal favorite ink colors.

We hope this information is interesting to you…and maybe even help you.

Delving into Diamine Inks

By on May 29, 2017
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It seems strange, even to me, that in spite of a lifetime using fountain pens, I had never previously gotten all that into inks. I used whatever was available, eventually falling in love with Waterman’s Florida Blue and Aurora’s black inks. And then Waterman went and discontinued Florida Blue. Sure, I bought up a bunch of it before it disappeared, but I found myself in ink crisis wanting to find something that I liked as much.

Witness the way sunlight fades fresh Diamine ink. The left writing sample spent 4 months in direct sunlight. The right writing sample is fresh out of the bottle. I was particularly impressed by the color, clarity and resistance to harsh UV rays.

Witness the way sunlight fades fresh Diamine ink. The left writing sample spent 4 months in direct sunlight. The right writing sample is fresh out of the bottle. I was particularly impressed by the color, clarity and resistance to harsh UV rays in the Diamine Ancient Copper ink.

This coincided nicely with a new generation of people exploring the wonders of many ink colors and brands! Now I have the bug, too. While still questing for my perfect Florida Blue replacement, I’ve been branching out trying new colors.

A penpal in Germany turned me on to the many wonders of Diamine last autumn. I picked out 4 colors to order and try on my own. I also performed an ink-fast test on them to see how they held up after spending 4 months in my window, during winter’s weaker light. Here are the results:

SHERWOOD GREEN: I’ve always loved Robin Hood stories, since I watched the Errol Flynn flick as a kid. Fresh on the page, it is a little darker and more yellow than I would have preferred, but it made a great ink for my Christmas cards last year. Given how dark and rich it is, I was surprised when it faded this much.

KENSINGTON BLUE: This is a beautiful dark blue with aqua accents in the shadowing, which you can’t see as well in this sample. Unfortunately, it suffers the same fate as many blues by fading too much over time.

PRUSSIAN BLUE: Given some German ancestry and an appreciation of their cheek-scarring fencing tactics, I had to try this ink. It is a good blue-black with some very nice shadow effects. As I am finding with other blue-blacks, it holds up a little better under the sun’s harsh rays.

ANCIENT COPPER: Hands down my favorite new ink of the past year! It’s rich, dark orange looks incredible when spread thin with a stub and then brought to a thick, darker clot when laid down thicker at the top or bottom of a loop. Its only downside is that it does seem to clog a bit in the pen over time. If I give my trusty Pelikan 800 a thorough flushing between refills, I have no troubles whatsoever. Best of all, it hardly fades at all, unlike my beautiful but fickle blues.