Those wrinkles in the fabric probably came from the dryer being too hot and got "set". Sometimes I have had to wash something again, (just run through rinse cycle)then set for perma press on dryer or take it out before totally dry, and shake it out to finish. Most of the time this will work if moisture or spray starch don't. Wrinkle release is good but I dont think it works too well on set in wrinkles.:)