I'm making a blouse, the cover blouse of Burda 12/2019. It's a fairly simple design but with a bit of interest with an asymmeyric tie and shoulder placket with buttons and rouleau loops. All good.
I'm pretty sure that I bought this fabric a couple of years ago in Fabricland, but I could be wrong. Anyhow, it's a man-made fibre, about georgette weight and very soft and drapey, almost a sort of crepe. Again, all good.
I came to sew my sample just to check tension, stitch length and so on. I sewed with a straight stitch, microtex needle, narrow throat presser foot. The machine is performing well with everything else, no issues. Here's my sample.
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I stress that there is no problem with my machine tension and I handled the fabric gently as it went through (using IDT). It looks like I've sewn jersey whilst stretching it to get a slight zigzag.
I tried many, many variations of things but in the end I concluded that it's the spongy/rubbery nature of the fabric that was causing the stretch. I reduced the presser foot pressure as low as possible and it did improve. Not perfect, but acceptable. I really like this fabric and it has the benefit of not fraying, but it it's truly the weirdest behaving fabric I've ever sewn!