Originally Posted by Holice
I read on one of the quilt sites that a well known quilter had done an exhaustive test on these pens and the conclusion was not good. I'm trying to find the post.
Yup, I read the same thing. She did exhaustive testing, including washing, and it did come back. It didn't leave the fabric, according to her testing. She really did a thorough job.
I'm of the opinion why take a chance? There are much better items that have been around many years for us to use.