Did you find out what to do? Since it's cotton, I doubt it needs any real preparation but I don't know. Maybe wash it to make sure it's not got anything from manufacturing left in it. What does the dye label say?
Cheating is an option. . . . Cheaters never win and winners never cheat, but smart knitters who want to retain an iota of sanity do, cheerfully. ~~Kory Stamper