Step 1
Pour 3 tbsp. of white vinegar into a bucket. Add 1 qt. of warm water. Stir in 2 tbsp. of heavy-duty laundry detergent.
Step 2
Soak the dye bleed stains in the homemade prewash solution for 10 minutes. Remove the quilt fabric from the bucket and blot to remove the prewash solution.
Step 3
Cover the stains with heavy-duty laundry detergent. Rub the detergent into the dye transfer stains and leave it there for 2 to 3 minutes.
Step 4
Rinse the detergent off the fabric with cool water. Mix 1 gallon warm water with 1/2 cup oxygen bleach in a bucket. Soak the stained areas of the quilt in the bleach solution for 10 minutes.
Step 5
Launder the quilt according to the care label directions. Use heavy-duty laundry detergent and oxygen bleach to remove any remaining dye transfer stain.
Step 6
Hang the quilt to dry, out of direct sunlight.