I had this problem with the dark lint sticking to the light colors, on some, not all out of the 12 rag quilts that I have made. I think it was part due to the dark flannel that I used. After the first 6, I started using a better quality fabric in them. I used a Fuller Brush Lint brush, but it is not really a brush, it has a fabric that if you swipe it backwards the lint comes off and forward it gets the lint balls. It worked really good, and made the quilt look nice for gifting it, but it took a little work on my part.