You can put it in the bobbin if you really want to, but most of the machine
quilting gurus recommend using normal cotton in the bobbin.
My very first attempt at machine quilting, without reading the books, I used
nylon downstairs. Nearly went bonkers winding lots of bobbins -it's slippery
stuff. And afterwards, I didn't really like the look of it against the
backing. (I do use it all the time on top -sometimes the quilt just needs
invisible thread.) But I can't say it made any problems as such. The quilt
is still perfectly OK after several years of use.
Roberta in D

"Quil" wrote in message
...
I bought some YLI brand nylon smoke thread to do the quilting on this
first
small project I am doing. I can put this nylon thread in the bobbin as
well
as the top thread spool, right? I heard something about nylon thread
stretching, breaking, melting if you load the bobbin too fast. Is the
correct or crazy?
Wish me luck.
Cyndi