A question that sometimes comes up during sewing classes is How do I secure the beginnings and ends of overlocking?
There are a few answers depending on the situation…
If the overlocking will eventually have another row of stitching or overlocking over each end (probable examples are side seams, shoulder seams and in fact, most regular seams), simply cut the overlocking chain off level with the end of the fabric. If you leave a tail it will just unravel to become threads.
If the overlocking laps over itself (for example, overlocking hems before turning them up and overlocking around armholes), cut off the thread chain after stitching over an inch or two where you started.
What if neither of these apply, and the overlocking finishes into thin air? This could happen at the point of a V neckline trim, or at the ends of an inverted pleat with a backing.
Use a rouleau loop turner to pull the tail through the overlocking:
Don’t have a rouleau turner? A darning needle does the same job.
The tail can also be overlocked over:
(This takes practise)