I don't think that there is a just for machine quilting thread. I like Aurifil 40 or 50 wt, but when I need a certain color and I don't have it I have used serger thread. Aurifil is 100% cotton and other thread that I have used are poly.
Your machine needs to like the thread that you are using because there are some quilting threads that my machine does not like, like Signature.. it just some breaks and shreds. You need a good thread that will last as long as the quilt does. This is just me, and not the quilt police. hehe
Last edited by mamagrande; 05-06-2017 at 08:20 PM.
Reason: typos