SINGER W1640 - Manual (Page 9)

BASIC INFORMATION
Section 2
needle , thread and fabric chart
fhe needle and thread you choose depends upon the fabric you are stitching.
The correct needle size is important to avoid damaging the fibers of lightweight
or tightly woven fabrics and to prevent needle breakage when stitching heavy or
stiff fabrics.
Needle
size
Thread Fabric
9
fine
• polyester
• cotton covered polyester
• fine mercerized cotton (70-100)
• silk A chiffon, fine silk, tricot, lingerie
fabrics, sheer lace, net, voile,
organdy
11
light
• polyester
• cotton covered polyester
• mercerized cotton (50-60)
• silk A light weight knits and jersey, silk,
batiste, taffeta, satin, lace, crepe
14
medium
• polyester
• cotton covered polyester
• mercerized cotton (50)
• silk A
double knits, linen, poplin, gingham,
pique, seersucker, velveteen, light
weight wools, fine corduroy
16
heavy
• polyester
• cotton covered polyester
• heavy duty mercerized (40)
• silk D (buttonhold twist for
topstitching)
heavy wools, corduroy, felt,
terrycloth, canvas, upholstery,
and drapery fabrics
Use only style 1 5 x 1 (European equivalent 705) on this machine. This style or
system is the most commonly used on household sewing machines.
• Always use same type and size of thread in both needle and bobbin.
• Always use a sharp needle. A blunt point can cause skipped stitches or snag
the fabric. Chemical finishes and man-made fibers blunt the needle faster.
• Never use a bent needle.
• If your machine is skipping stitches, replace the needle before looking for
trouble elsewhere.
Special Needles with blue shaft or ballpoint are particularly designed to sew knits
and stretch fabrics. Such special needles can prevent sewing from skipping stitches
and damaging stretch fabrics. Available in size 9, 11, 14 and 16.