I've always admired other eco-printers paper prints and have experimented a little. But, now, I am obsessed. Of course, paper, especially high quality paper, is made from cotton or linen fibers - textile! Even the other cellulose fibers that make up most paper are dyeable as well. If I expect them to be dyeable, I need to mordant them. I have an enormous restaurant stock pot out in the greenhouse at the studio filled with a some alum (half potassium alum and half aluminum acetate) several vinegar-ed rusty items and two corroded copper pipes. Soak for 24 hours.