Overlock stitches
Also known as: Serger stitch, Overedge stitch
Edge-wrapping seams using 3–5 threads that overcast and join in one step.
Description
Overlock stitches (serger seams) wrap the fabric edge with one or more needle threads and two looper threads. Common variants are 3-thread (1 needle, upper/lower looper) for light jerseys, 4-thread for load-bearing hems and 5-thread (safety stitch) with an integrated chain stitch as the structural join. Stitch density is 4–6 per cm; strength 50–120 N/cm.
Overlock prevents fraying, is moderately stretchable (20–40 %) and is the standard method for joining jersey and sweat fabrics. Sample products at Clubmartin: crew-neck T-shirts, sweatshirts, polos. Sewn on machines such as Pegasus M700, Juki MO-6800 or Yamato AZ8500 with textured looper yarn.
Properties
| Stitch types | 3-, 4-, 5-thread overlock |
|---|---|
| Needle threads | 1–2 needle + 2 looper |
| Usage | jersey, sweat, edge finishing |
Related product categories
Sources & references
2- Wikipedia: Overlock Wikipedia — Freie Enzyklopädie https://de.wikipedia.org/wiki/Overlock
- DIN 61400 Nahtarten Beuth Verlag / DIN https://www.beuth.de/de/norm/din-61400/
