The thing is, it could bleed forever and if none of the light fabrics pick that dye up it's not a problem. A dye bleed only becomes a problem when another fabric picks it up and doesn't release it. Even when a lighter fabric picks up a dye bleed it's still not set and will likely wash out if you keep washing it. Front loading washers are horrible for washing quilts that have a fabric with a lot of excess dye. There just isn't enough water to float away the excess dye in a front loader. A top loader and Synthropol is the best solution. Synthropol keeps the excess dyes from settling on the fabrics.