Digital BW, The Print

Paul, I don't think I've ever asked about this, but are there any DYE
based quad inks with a super dense, deep black that are supposedly
archival, and would last at least 25 years under low light conditions?  

Right now, I'd be pretty happy with a DEEP black that lasted 25 years or
so. And I don't suppose the dye inks would have any flaking problems.

Jerry