7 Best Tips for Hemming Knits with a Twin-Needle

Learn the best way to hem stretchy knits using a twin needle on a regular sewing machine by following these simple steps.

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Twin-Needle Knit Hemming Tips

1. Use bobbin spools
Wind 2 bobbin spools with thread and stack them if you don’t have two pins on your sewing machine. No need to buy an extra thread spool when using a twin-needle.
2. Use a stretch twin needle
When hemming knits, a stretch ballpoint needle prevents skipped stitches and holes in the fabric.
3. Check the stretch
Do a sample and pull. Does it stretch? If not decrease the stitch length. This will keep the seam from breaking too. Start with a stitch length at around 2.5 and see how it looks and performs. Remember that longer stitches equal less stretch.
4. Adjust the needle tension
To prevent tunnelling (ridges) try lowering the needle tension to make the seam flatter.
Here are 4 examples of tension settings, starting with low tension and moving up to very high.
The first one has very low needle tension. The seam is flat. but the needle thread looks loose.
The last one has a very high tension setting. Look at the pronounced tunnelling on this one.
On the reverse side, you can see the needle thread clearly on all samples apart from the one with very high tension. That’s okay, the thing that matters is if the seam has great stretch and looks good on the right side.
5. Use a walking foot
This can prevent the fabric from stretching out, which is very common when hemming knits
6. Use a stabiliaer
If you don’t have a walking foot, use a water-soluble double-sided tape or wash away stabiliser to keep the knit fabric in check when sewing.
Another option is placing stretchy fusible interfacing on the hem allowance, this prevents both tunnelling and stretched-out fabrics.
7. Thread one needle at a time to avoid tangling. Start with the needle to the right if your machine doesn’t have a thread separator.
Remember to lift the presser foot before threading to release the tension disks.
Finish by pulling the threads back to avoid them getting stuck


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📘 My book Master the Coverstitch Machine
https://www.thelaststitch.com/master-...

🏃‍♀️ Get my book Sewing Activewear
http://www.thelaststitch.com/sewingac...

✂️ Shop my favourite sewing tools
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Sign up to get a quick guide to the best sewing machine stretch seams
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✂️Find me on the Internet✂️
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