Hey guys, I'm trying to conceptualize a project (very beginning of planning stages), and one of the necessary items is thermochromic pigments. Ideally, I'd like something that I could dye cloth with, or at least paint onto cloth. I can't find anywhere to purchase thermochromic cloth/ink/dye/pigments in reasonably small quantities. The color change I'm looking for is white->black, and the best I can find is white->grey (actually grey->white). Can anybody help? Thanks!