Singer 645 - Needle and Thread Selection Guide

— I I
SELECTION OF
NEEDLES
AND
THREADS
The
needle and
thread
you
choose depends
upon the
fabric you
are stitching. The
correct
selection
of
needle
and
thread is very important
to
avoid
damaging the
fabrics of light
weight,
or tightly
woven
fabrics, and to prevent
skip
ped stitches
when
sewing on
very
sheer
or
stretchy
fabrics
or
needle breakage
when stitch
ing heavy
or stiff
fabrics.
For best results, sewing
machine
needles
should
be
replaced
when they
become
even
slightly
dull or
bent
or at the com
pletion
of every
other
garment.
A regular needle is
suggested
for
use with
woven
fabrics. Needles,
style
15
x
1, of the
range
in
size from
8 to
20
are used
on
this
machine.
The lower number indicates
the finer
needle. The most
commonly used
sizes are 11
and
14.
A ball point
needle is
recommended
for
use
with
tricots,
jerseys, lingeries
and
power
nets.
Unlike sharp
pointed
needles,
which
pierce
fibers
of
knit
fabrics
destroying
elasticity,the
ball
point
needle
s 1 ips
between
fibers
without
damage
to
fabric
and
skipped
stitches.
A
wedge point needle
is
recommended
for
use
with
leather and
leather-look vinyls.
A
wedge
cutting
point pierces
leather
more easily
than
ordinary
sewing
machine
needles,
resulting
in
more
satisfactory stitching.
Although it
is
recommended
to
use
a
ball point
needle
for
knit fabrics,
when
sewing
on very
stretchy
fabrics
of knits,the
placement
of
a
thin
paper
below
the
fabric
and
the use
of
a finer
needle
are
suggested
to prevent
skip
stitches.
Always
use
the
same
type
and
size of
thread
in
both
needle
and bobbin.
Use
good
quality
thread without knots
for
best
stitches.
BALL
POINT
NEEDLE
WEDGE
POINT
NEEDLE
8