What do you do with a fabric that won't stop bleeding?
If I can return it - I try to - but most of my fabrics have had a chance to "age" - so I probably no longer have the receipt.
II no receipt - I discard it - in the waste basket! I will not donate it and cause someone else to have problems. Sometimes I will use it for practice runs with the serger - but no way will I use it for something that will actually be used.
Wonderful as Synthropol and color catchers may be - the people I give quilts to will probably not have it /them on hand or remember to use it/them.