This is a mystery that I've been working through by trial and error. Surprisingly I've found rather little information about it. Today however, this free download popped into my email inbox and has shed some light on the matter. (It's quite a good little e-book of sewing tips.)
Wish I'd seen it before some of my recent sewing with knits.
See, I've been drawn to cotton thread. I love me a natural fibre, and no-one seemed to be giving me compelling reasons to use something else. Besides, mightn't polyester thread potentially melt under a hot iron?
So anyway I sewed this with cotton thread:
That's twin needle stitching on the bottom hem of this top, which despite the wonky stripes and thanks to some encouraging comments - thank you! - I finished up and have been wearing a lot.
However. A couple of times in the putting-on or taking-off of this top I've heard that dreaded snap! of a thread being stretched to breaking point. See Fig. A above.
And now I realise that cotton thread has a lot less strength than polyester, and is not really the best option for sewing fabrics with stretch.
Silk thread is apparently very strong and has some natural give in it. I've always wondered what silk thread might be for. My local store doesn't sell it but I've seen a large bank of Gutermann silk thread at Spotlight. Is it really pricey? The hedonist in me rather likes the idea of sewing with silk thread.
Also in the sucky department is the fact I used cotton thread for my beloved Miz Mozelle, and when I was reaching around in the car to strap Clem into his seat, I heard that horrid snap! again.
What kinds of thread do you use? I'd love to hear some other opinions and advice, especially since I am keen to sew a lot more knits.
To end on a less frustrating note, here is a photo of some gingerbread, decorated entirely by Clem and his friend Summer from across the road. I was rather proud of my calm restraint in standing back and letting two three-year-olds slop coloured sugar about.
Totally worth it.
- Jane x
PS - I'm adding this a few days later in case anyone reading may find it useful - I just found this which suggests using woolly nylon thread in the bobbin when doing a twin needle stitch on knit fabrics. I will have to try that, along with polyester thread, and maybe I'll have better luck with my hems.