Some more food for thought ....... are there different types of rayon thread?
Meaning ..... perhaps some are more suitable for quilting than others?
I have used embroidery thread for quilting, with no hesitations, as it was recommended to me by my local dealer. I haven't had problems, but too, my quilts do not get heavily laundered. However, some have been washed many times already, with no problems.
Perhaps someone knows the answers about different rayon threads?