kathyathome

I've prewashed fabrics my daughter chose for a large log cabin quilt. She asked if she could pick any kind of fabric, not just cotton, and I told her "if you choose it I'll sew it." I'm regretting that a little because she chose several very silky polyester type fabrics that washed fine and went through the dryer fine, but they unravel if you just look at them. I'm worried that they might unravel through the seam after being pieced into the blocks for the quilt. Do I have to zig zag the seams that involve these fabrics or finish them in any way? Or do I need worry about this at all? Too late to cut on the bias if that is what I should have done - the pieces are already cut. Thanks for advice from anyone who has had experience quilting with these fabrics that unravel very easily.