Whilst we are on the subject of ink pens, i have just had my new bottle of black ink arrive today, a lovely surprise considering it's Sunday! There only seems to be a few companies that sell it here in the UK, i got this one from a great site called "The Writing Desk".
It's Noodler's "bulletproof" black ink. "Bulletproof", as the company says on it's website is......
"An ink designated by Noodler's as "bulletproof" means it stands up against bleach, UV Light, industrial chemicals, etc., making it impossible to forge a check! The cellulose reactive dyes are completely water soluble in your pens and in the bottle, but once the ink dries on the paper, it is totally waterproof and permanent!"
This stuff is the business! No longer will i have to worry about so called "permanent" inks smudging in the post on envelopes. The water tests that have been carried out on this ink have proved it is a great one for using in letters or artwork that you want kept for years. It will revert to normal ink without the "bulletproof" qualities if it is mixed with any other ink, but you just don't do that.
With my track record, i am going to have to be carefull with it, spillages just cannot happen with this one!