When I google CIRI I get an investment company, who are you referring to and do you have a link.
I would rather not talk about banknotes, please.

Honest BIG BROTHER I am just trying to make some nice long lasting prints.

Quote Originally Posted by Mustafa Umut Sarac View Post
Bob , my logic tells me , the more pigment , the more time the ink lose its color. For all oil painting paints , I can say they are not strong. I think you can contact with CIRI and talk with a chemical engineer. Their manager have 50 years of ink testing experience. May be they tell sell you an formula and give you a contact address to order manufacturing it. May be you can buy or order an banknote ink from china.