You can make it smooth with your hand.
How to get wrinkles out of plastic tablecloths. Place a damp towel in the dryer. Chose a low, delicate setting. Warm the wrinkled regions by moving the hairdryer back and forth over them while it is on the highest heat setting.
Holding the iron five inches above the plastic item, move. When purchasing flannel backed plastic tablecloths, there are folds that are visible. A bit of heat in the dryer is one way to get rid of them.
Drying them with a permanent press option. Sit them out in the sun or use a blow dryer. Yes, add a towel with.
The steam will help in removing the wrinkles on the clothes quickly. Let them hang for at least one hour. Smoothing the cloth with your hand or pulling the edges and corners will speed up the process.
Although polyester is a very gentle fabric, using vinegar on it wouldn’t damage it when you use the right. I have great success with wrinkles by using my wrinke release cycle (very low about 10 mins) on my dryer. Works well if your tablecloth was clean beforehand.
Smoothing the cloth with your hand or pulling the edges and corners will speed up the process. Iron the flannel side of the tablecloth. This first way to remove wrinkles from a tablecloth or napkins is one that i use regularly.