1 - 4
0.4 - 0.7 cm
3 - 9
Machine setting
Stitch
Thread tension dial
Fabric preparation:
Fold up the fabric as
shown.
Lower the foot, stitch slowly for
better control so that the
needle catches the folded edge
at the leftmost position.
Spread the fabric flat with the
right side up.
21. Blind Hemming
22. Shell Tuck
Machine setting
Stitch
Thread tension dial
Fold the fabric in bias with the wrong side together.
Place the folded edge under the right side of the slot
on the foot. The needle should fall off the folded
edge at the right swing to form tucks.
23. Balancing Thread Tension
Correct thread tension for the
straight stitches
Needle thread is too tight.
Needle thread is too loose.
Decrease
tension
Increase
tension
24. Selecting Needles and Threads
In general, fine threads and needle are used for
sewing thin fabrics, and thicker threads and
needle are used with heavy fabrics.
Always test threads and needle size on a small
piece of fabric which will be used for actual
sewing.
Use the same thread for needle and bobbin.
When sewing stretch, very fine fabrics and
synthetic, use a Blue Tipped needle to prevent
skipped stitch.
Fabric
Thread
Needle
Fine
Crepe de Chine,
Voile, Lawn,
Organdy, Georgette
Fine Silk
Fine Cotton
Fine Synthetic
#9
#11
Medium
Heavy
Cotton, Pique,
Serge,
Parcale
50 Silk
50-80 Cotton
50-60 Synthetic
#11
#14
Denim, Tweed,
Gabardine,
Caoting
50 Silk
40-50 Cotton
40-50 Synthetic
#14
#16
Wrong side
of the fabric
Right side
of the fabric
Wrong side
of the fabric