I pre-washed batik for a project. Then I ripped for the borders. Had strings everywhere. My solution was fray chek dabbed sparingly along the edges and then when I got the strings cut, they didn't re-ravel. I keep a bottle near my sewing machine. Trick seems to be to use sparingly as it really makes the fabric hard or something and you don't want that on the quilt top just the seam margins.