More water tests

[cjr]

Since my last post on permanent ink tests seems to generate a lot of side discussion, I thought I’d toss in some more material for discussion.

 

I did this test two years ago on Rhodia paper. It, too, was a 12 hour soak in water. This one includes a wider variety of inks for comparison.

 

I included some inks I like for their color and writing properties, but they aren’t water resistant. Most of my inks have some degree of water resistance.

 

I included a photo of the sheet as it was submerged in the water bath. This is what really appeals to me. I need ink that doesn’t run off the paper when I spill water on it. Many of the water resistant inks have components that flee with the first touch of water. Some of the best behaved inks from a maintenance and flow perspective, have no resistance at all.

 

The scans show the original on the left and the result of 12 hours soaking on the right.

 

[A Smug Dill]

47 minutes ago, cjr said:

This is what really appeals to me. I need ink that doesn’t run off the paper when I spill water on it.

 

Me too, when talking about waterproof inks. Any (observable or detectable) impact upon re-wetting, after the ink has dried on the page, would mean the ink is (or marks made with such are) not waterproof.

 

https://www.fountainpennetwork.com/forum/topic/348510-nine-pigment-inks-tested-for-waterproofness/

 

Platinum Carbon Black ink is first among the waterproof inks to fit that description, I reckon, followed closely by Sailor Seiboku and Souboku (but not Kiwaguro), and Sailor STORiA pigment inks.

 

Nevertheless, an ink (or combination of the ink and a particular type of paper or medium) can be highly water-resistant if the bond between some visible component of the ink and the medium will not easily by dissolved or broken by prolonged exposure to moisture or soaking alone, even if some other impact (e.g. dye components running off the ink marks and then staining the surrounding area) makes the marks effectively illegible.

 

 

[yazeh]

Wow some of those inks are completely obliterated... And some seem to be amphibians

[carlos.q]

Pilot Blue Black never ceases to amaze me... 👍

[CupTea]

22 hours ago, carlos.q said:

Pilot Blue Black never ceases to amaze me... 👍

 

Me too! One of my favorite inks. 😀