Originally Posted by thepolyparrot
I buy almost all of my embroidery threads from ThreadArt.com - I don't use rayon for anything I might have to press, someday - rather, I use poly, which stands up to laundering and ironing a lot better.
ThreadArt's threads are wonderful for machine embroidery, free-motion embroidery and quilting. They've got about a bajillion colors and the prices won't give you sticker shock. :)
They sell a beautiful poly bobbin thread, too. The bobbin thread helps keep the thread from building up on the back of the piece, because it's so fine - about the equivalent of a 60 or 70wt thread or maybe finer. Being poly, it's very strong, even as fine as it is.
I'll have to try your threadart thread. Right now I have so much thread that I am trying to use up before I get any more. I do like the poly bobbin thread though. I have never had any problem with rayon thread and ironing, etc. I have been embroidering since before all these fancy threads, back with the Singer Athena 2000 in the late 70s.