Lightfastness Results of Fifteen More Ink Samples

As promised, here are the results of my lightfastness testing to date of the following inks:

• Noodler's Bulletproof Black
• Parker Quink Black
• Private Reserve Gray Flannel
• Diamine Graphite
• Diamine Grey
• Noodler's Lexington Gray
• J. Herbin Gris Nuage
• Iroshizuku Kiri-same
• Omas Grey
• Iroshizuku Fuyu-syogen
• Iroshizuku Yama-guri
• J. Herbin Cacao du Brasil
• Diamine Damson
• Caran D'Ache Storm
• J. Herbin Poussiere de Lune

The left halves of these test sheets were in my south-facing studio window since April. The right halves were kept in a closed box in a cabinet.  It is worth noting that the sheets on the right, which were kept in darkness, have had no problem with retaining vivid colors, so please don't get nervous if you've been using these inks inside a book. They should be absolutely fine! These tests only reveal what happens when an ink is exposed to sunlight. If the inks you've used are not exposed to light, then these results are irrelevant.


Test sheet 2:

Test sheet 3:

You can click them to see larger, clearer images. I'm sorry that I'm not a better photographer, but even so, individual results are pretty clear. Most colors experienced fading, color shifting or both, but I feel the following inks had very little, if any, change:

• Noodler's Bulletproof Black
• Diamine Gray
• J. Herbin Gris Nuage

Noodler's Bulletproof Black and J. Herbin Gris Nuage are both real workhorses for me, so I was delighted to see them perform so well. Some inks had so little change that I wouldn't worry at all about using them, though I still wouldn't be comfortable with exposure to UV light:

• Omas Grey
• J. Herbin Cacao du Brasil
• J. Herbin Poussiere de Lune

I found it interesting that so many of the greenish grays lost some of their blue component, resulting in a yellowish-olive/umber tone, like Parker Quink Black, Private Reserve Gray Flannel, and Noodler's Lexington Gray. Diamine Graphite turned from a greenish gray to a more neutral gray. Iroshizuku Yama-guri (one of my personal favorite inks)  lost some of the cool color, transitioning to a much pinker color, whereas Diamine Damson lost some of its rosy glow and turned to a bluer, cooler violet. And who would have guessed that Caran D'Ache Storm would bleach out to pale orange?

Stay tuned for more lightfastness results tomorrow on 11 additional colors. To see previous lightfastness test results, click here. You'll always be able to find them easily by clicking "Lightfastness tests" on the left sidebar.