ok, just did burn test and did a bit of research and it could be either rayon or polyester cotton blend. it melted with a flickery fire black smoke and hard lumb that was in a little ball when burned. kept burning when i removed flame. So I'm a little closer to knowing what its made from. Thx to all my fellow quilters. If i may be wrong about my guess please, let me know cuz i am still not sure of it yet.thx again.