Stitch Type

Stitches: Class-407 (Sub-Classes)

Stitch Class 407 (bottom coverstitch): Stitch is formed by 3 needle threads passing through the material and interlacing with 1 looper thread with the stitch set on the underside of the seam. Thread consumption ratio=1: 20

This type of stitch is formed with 4 threads:

Stitch type 407

3 Needle threads (A, A1 & A2) 1 Looper thread (B)

The loops of the needle threads (A, A1 & A2) are passed through the material and inter-laced and inter-looped with loops of thread (B). These inter loopings are then drawn against the underside of the material being sewn.

Face Side

Underside