I found a cone of clear nylon thread for a serger at a thrift shop and bought it, but I am not sure if I can use it with my sewing machine. It is very fine, about like a hair. Can I wind it on my bobbin and use it as the top thread also? I would like to do invisible stitching of raw edge appliques if I can. Any advise?

You can use it in your bobbin and top thread. It is tricky to get started when filling the bobbin but it can be done. You also have to pull your threads out farther than normal when ending; otherwise your needle becomes unthreaded.

Worth a try. Some of the clear threads are tempermental about which direction they feed from, so if it does not work on the first try, unwind the first bobbin onto another so it feeds in the same direction it would if it were coming off the spool.

You may not want to use it in your bobbin. Nylon stretches and can cause havoc with your bobbin.

That is what I was going to say. If you use it in your bobbin, be sure it isn't getting stretched....

Warning: Do NOT use a hot iron (it melts), otherwise, see how it works for you. Not all machines like it, probably why it was there.

I don't like it in my bobbin. I tried it once and it didn't work to well. Also I have to be careful what clear thread I use. Some just doesn't work in my machine. I say try it and see what happens.

Try it, have seen it work, and ironed that one amazed me !!

Polyester thread can take the heat, nylon cannot, please test first, save the tears for something that matters.

I've tried it in my bobbin and had nothing but problems.