I'm not an expert quilter. I sew on a vintage Singer sewing machine. I had a terrible problem the first time I tried to use invisible thread for applique, so gave up. It was Coats and Clark thread.
I've used Gutermann Invisible thread to quilt with a walking foot. I have had no problems whatsoever. I loosen the upper tension and use regular polyester thread in the bobbin. The Gutermann thread says it's 100% polamida, and made in Mexico. I searched for a definition of "polamida", but was unable to find one. I also used a spanish/english translator, but got no answer. I assume it's polyester. I worked fine with a walking foot. I purchased it at JoAnn's. It's available on Amazon.
bkay
Last edited by bkay; 04-23-2020 at 04:39 AM.