Stitch Type

Stitches: Class-505 (Sub-Classes)

Stitch Class 505 (overedge): Stitch formed by 1 needle thread and 2 looper threads forming a double purl on the edge of the seam. For serging only.

Thread consumption ratio=1 : 16

Stitch type 505 is very similar to stitch type 504. The main difference is that in stitch type 505 the lower looper thread (B) Is tighter and the needle thread (A) is looser than in stitch type 504. Stitch type 505 is a three thread version of stitch type 503.

This type of stitch is formed with 3 threads:

Stitch type 505

1 Needle thread (A) 1 Lower looper thread (B) 1 Upper looper thread (C)

The loops of the needle thread (A) are passed through the material and inter-looped with loops of thread (B) at the point of penetration on the underside of the material. The loops of thread (B) are extended to the edge of the material and there inter-looped with loops of the upper looper thread (C). The loops of thread (C) are extended from this inter-looping point of the needle penetration of the next stitch and there, they are inter-looped with thread (A).