Originally Posted by KarenK
The wrinkly look can be achieved with the batting. Most of the time I use Hobbs Heirloom batting, 80% cotton, 20% polyester. For a wrinkly look, don't pre-wash the batting. When the finished quilt is laundered, the cotton will shrink a bit and give that antique look. For a smooth look, pre-treat the batting. The instructions are on the label.
It is funny. I was at the library today and I was looking at a book that talked about this. I always thought it was the fabric that caused the crinkly look but now I know it is the batting. I don't pretreat my batting so I feel better about using the mixed fabrics now.