40
Scarf
Needle Eye
Needle Groove
The size of the eye of the needle-and the size of the
needle groove varies-between different sizes of
needles.
The front groove of the needle cradles the thread
and protects it from the heat of sewing friction
(which can result in thread breaks.).
The back groove of the needle (scarf) helps regulate
the hook timing and prevent looping. Prevention of
looping is important for quality stitching, so the
hook point should be adjusted as close to the needle
as possible to achieve perfect thread position while
sewing.
If thread breaks or thread movement occurs, turn the
needle slightly to the right. This helps to form a
good loop as the very slight angle can help the point
of the hook catch the thread with greater ease during
the formation of the stitch.
As we have learned, when a stitch is formed, it makes a loop. The loop size may vary depending on the
thread selection. Cotton forms a much tighter loop then synthetic thread. Loop formation can compromise the
quality of your embroidery. The synthetic threads are polyester and rayon. Polyester has a greater elongation
factor than rayon or cotton, meaning that it can be stretched more before returning to its original position and
so creates a larger loop. Tightening the top tension when using polyester thread can eliminate the looping.
Hook Point
Cotton Loop
Synthetic Loop
Hook Point
