Originally Posted by
Sewnoma
I don't trust them because they haven't been around long enough to know what that weird ink is doing to the cotton for the long-term. Since the lines do sometimes come back after a washing (per my own testing as well as comments here) that tells me it's not washing away completely.
This is exactly what my concern is. It's very frustrating to have conversations with other quilters and have them
completely miss this point when I tell them the marks come back if the quilt gets cold. There have also been many reports of the ink reacting to something in some of the fabrics (dye, maybe?) and causing permanent staining and damage.
There are so many other products out on the market that are designed specifically for quilting. If used properly and according to directions, they disappear completely. I'm sticking with what's tried and true.