As long as your material is polyester, it will kork. Regardless of what type of ribbon it is. Even organza will kork. Polyester is simply woven plastic. When you bake it, you melt those plastic chains. When you cool it on the dowel, you re-fuse those plastic chains in their new shape
NYLON however, will NOT kork. EVER. Trust me. I am stubborn and I have tried. I even googled the melting temp to try it. It stunk the house up with smoke.