Fabric bleeding becomes a problem when the loose dyes stain other fabrics, even if they do not deposit colors onto other items in the wash. Some fabrics might bleed just enough for patches in quilt blocks that have been sewn together to stain adjacent patches, a problem that’s most often seen when the quilt remains wet for an extended period of time. The solution to those problems is to perform an easy fabric bleed test if you suspect that a fabric’s dyes might be unstable.
How to Do a Fabric Bleed Test
Use a Product That Can Stop the Bleeding
If you must use a fabric that bleeds or transfers, purchase a commercial dye fixative, such as Retayne, to help make the dyes more permanent. Treat a snip of fabric, following the instructions carefully, then try the bleed test again.
A product called Synthrapol is sold by companies that carry fabric dyeing supplies. It helps keep colors suspended in the wash, preventing them from staining other fabrics.Some quilters use a product called Color Catcher®, which resembles dryer softener sheets. Just toss one of the “catchers” into the wash, where it absorbs loose dyes.
Most fabrics produced by companies that cater to quilters do not bleed, but it’s a good idea to do a bleed test on all vivid fabrics until you have a good understanding of which fabrics you can trust. Hand-dyed fabrics should always be tested and pre-washed. Yes, the people who crafted those fabrics may have already taken steps to be sure their fabrics are stable, but it’s best to be sure before you use handcrafted fabrics in a quilt.
What Is Crocking?
Crocking occurs when the excess dye on the surface of dry fabrics rubs off onto another dry fabric. Prewashing your fabrics helps avoid crocking. Some quilters never prewash fabrics. They prefer to wash a quilt after it is assembled. Once you’re familiar with fabric types and brands, you might decide to do the same.
Fabric Helpers
Do a burn test to help identify fabrics. Learn how to make your own laundry detergent. Learn the best ways to store your quilts to avoid permanent creases and color transfer.
