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Balancing T hread Tension
Correct tension
_ Needle thread ( Top thread)
_ Bobbin thread ( Bottom t hread)
_ Toloosen
_ Totighten
The ideal straight stitch h as threads locked b etween
two layers o ffabric, asillustrated.
Ifyou took atthe top and bottom ofaseam, notice
that t here a renogaps. Each s titch i ssmooth and even.
When a djusting the needle thread t ension, thehigher
thenumber, thetighter theneedle thread t ension.
Results depend on:
- stiffness and thickness ofthe fabric
- number offabric l ayers
- type ofstitch
Tension
i s too tight
_
Needle thread (Top thread)
.....
.........
_
Bobbin thread
(Bottom thread)::
........
_
To loosen
_
Right side (Top side) of fab_i
....
@ Wrong
side (Bottom
side) d_
ic
If the bobbin t hrea d shows t h ro
t he rig ht sia::
(Top side) of the
_i:i_ B:_:els bump_;
:
t urn the dial to
se
er
loosen the nee_i# _8:i_nsion.
......
Tension
is t_:
i_se
....
....
_
Needle
_
Bobbin
_
Tot
_
Right side
G_ Wrong
side (I
........................
If the needle thread sh_ws through
on the wrong side
(Bottom
side) of the fabric, and the stitch feels
bumpy, turn the dial to a higher tension
setting
number to tighten the needle thread tension.
®
Adjusting
the needle thread tension
for a zigzag stitch
For an ideal zigzag
stitch, the bobbin thread does not
show on the right side (Top side) of the fabric and
needle thread shows slightly on the wrong side
(Bottom
side) of the fabric.
See the illustrations
for correct
appearance.
To match this appearance,
adjust the needle tension.
Correct
tension
_
Right side (Top side) of fabric
_ Wrong side (Bottom
side) of fabric
Minimize
the amount
of needle thread visible on the
wrong side (Bottom
side) of the fabric without
causing
excessive
puckering,
or causing
the bobbin thread to
show on the right side (Top side) of the fabric.
Results vary with fabric, thread and sewing conditions.
Tension
is too tight
_
Right side (Top side) of fabric
_ Wrong side (Bottom
side) of fabric
The corner of each zigzag pulls together
on the right
side of the fabric.
Tension
is too loose
_
Right side (Top side) of fabric
_ Wrong
side (Bottom side) of fabric
The corner of each zigzag point pulls together
on the
wrong side of the fabric.
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