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Prepare the Top Thread (Continued)
= Adjust theTop ThreadTension
Top side of fabric
Top
-. _ _.. ,,_,
For Straight Stitch
The ideal straight stitch wilt have threads locked between the two layers of fabric,
as shown above, magnified to show detail.
If you look at the stitch, trentand back, you will notice that there are no gaps, that
each stitch is smooth and even.
When adjusting top thread tension, the higher the number, the tighter the top
thread.
Choose the Correct Tension:
The best tension will depend on;
-- the stiffness and thickness of the fabric
the number of fabric layers
-- the type ot stitch
f
The top thread
_sleo loose.
The lop lh_ead
appears on the
underside raJthe
labnc.
Tension is too loose:
The top thread shows through the
bottom of the fabric. The bottom side
of the stitch wiltfeet bumpy.
The top thread
_stoe tight
The bobbin thread
appears on the
upper senate oJ Ihe
labr{c,
Tension is too tight:
The bobbin thread will come through
the top of the fabric. The top side et
the stitch wilt fee_bumpy.
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