Flatlock Sewing; Standard Flatlock, Wide; Decorative Flatlock, Wide; Ladder Stitch - Singer S0700 Instruction Manual

Flatlock Sewing

A Flatlock (A) is made by adjusting the tension of the
3-thread overlock stitch, sewing the seam and pulling the
fabrics apart to flatten the seam. The tensions must be ad-
justed correctly for the fabric to pull flat properly.
A Flatlock can be used both as a decorative construction
stitch, sewing two pieces together (Standard Flatlock), or for
decoration only on one piece of fabric (Decorative Flatlock).
There are two ways to sew a Flatlock. Either with the wrong
sides of the fabric together to create a decorative look, or
with the right sides together, to create a Ladder Stitch.
Standard Flatlock, Wide (B)
1. Use the left needle.
2. Thread the lower and upper looper and the left needle.
3. Set the thread tension according to the stitch table on
page 30.
4. Place the wrong sides of the two pieces of fabric togeth-
er to sew a decorative stitch on the right side of the proj-
ect.
5. Sew the seam, trimming the excess fabric. The needle
thread will form a V on the underside of the fabric. The
lower looper thread will pull into a straight line at the
fabric edge.
6. Unfold the fabric and pull on opposite sides of the seam
to pull the stitches flat.
Decorative Flatlock, Wide (C)
1. Place the upper cutter in the nonworking position. The
fabric should not be trimmed on this stitch.
2. Follow steps 1-3 above.
3. Fold the fabric piece, wrong sides together, to sew a
decorative stitch on the right side of the project.
4. Position the fabric so the seam is sewn with part of the
stitch extending off the fabric.
5. Unfold the fabric and pull on opposite sides of the stitch
to flatten.
Tip: The upper looper thread is the prominent thread in the
flatlock stitch. Place a decorative thread in the upper looper
and regular threads in the lower looper and needle.
Ladder Stitch (D)
A ladder stitch is a flatlock stitch but sewn with the right
sides of the fabric together. The needle thread will be the
prominent thread that creates the ladder.
A
B
C
D
SEWING – 35