Please Advise Me On Black Ink For Official Records; Must Not Feather

[Pensei]

^I think you may in fact be getting the doctor's latitude!

[BlazeOrangeGuy]

^Yes, indeed.

[nomadhacker]

All the suggestion so far have been good. But for my personal preference most of these ink leave a residue that sits on top of the paper and if exposed to liquid and humidity they tend to smear. For truly waterproof ink I always go to Platinum Carbon Black. Once this ink is dry on the paper the ink goes nowhere. No smear or smudge.

 

There are those who say it fades over time, but I think that time frame will be long, long after the need for looking at the patients records.

 

Sorry, what? Platinum carbon black fades? Who's said that? I like this ink.

[Arkanabar]

The only way I can imagine a carbon pigment fading is if it oxidizes or crystallizes. If the former happens, it's probably because the document is on fire. If the latter happens, that's generally under conditions that paper wouldn't survive anyway.

 

eta: I can imagine that the ink contains dyes as well as pigments, and that the dyes could fade. But I would think enough carbon would go down to maintain legibility.

Edited September 17, 2016 by Arkanabar