red and white

I wonder if you just put the quilt in the washing machine with plain water and salt if that wouldn't set the colors before you wash it. Isn't it salt or is it vinegar that sets the color?? I think I would set the color first then not have to worry about it. Then don't wash it in hot water.

The lady before me, sorry didn't catch the name before starting this, is right. Letting wet cloth sit is what causes most bleeding that stains.