Yes, usually polyester coating is added on fabric to make it anti-crease, For example. wrinkle free trousers. Polyester is not easy to fold while cotton does. Therefore 100% polyester fabric is less likely to have wrinkles after folding. However, the fabrics are less breathable and feel stiffer during wearing. Normally woven fabric that used to make official dress like shirt, suit and trousers will have such wrinkle free nature.