A look at Aardenburg https://www.aardenburg-imaging.com/light-fade-test-results/ shows that for the same ink and printer, the fade results can vary wildly depending on the paper used in the test. Is there any definitive research on what kind of paper affaects the results? Glossy, matte, cotton, polyester, manufacturer, price . etc etc?
Not from Mark, though he'd like to run those tests but lacks the budget for it.
Some hint can be gleamed from Wilhelm's site but his standards aren't as strict as Mark's.
But the general rule of thumb is to avoid OBAs, print on 100% cotton and display them behind glass for best overall display life.
