I find when I get a fabric that seems to fray a lot I'll cut it with my pinking blade rotary cutter instead of a straight blade. Helps a bit plus I starch all my fabrics beforehand too. When I piece a backing I'll pink the seams there too then use Elmer's glue to tack the seams down so they don't fluff up while advancing the quilt. I wash all my quilts before I give them to the recipent so using glue isn't a problem. Love my Elmer's Glue.