PARTS OF THE NEEDLE
SEWING NEEDLE PARTS
•The end of the needle
•The butt determine the length of the needle when it is fully
inserted into the needle bar of the sewing machine.
•upper part of the needle
•may be cylindrical or have a flat side.
•larger in diameter than the rest of the needle for reason of
•Intermediate between shank and the blade
•It is also called shaft
SEWING NEEDLE PARTS
•Below the shoulder of the blade to the eye of the needle
•Longest part of the needle.
•Accommodates the groove, the eye and the scarf.
•The blade reduces the fabric resistance as the needle point
and its eye passes through the fabric
•Greatest amount of the friction .
SEWING NEEDLE PARTS
•Slit above needle eye, should be large enough to "cradle" thread
for smooth stitches.
•Provides a protective channel in which the thread is drawn
•A Correctly shaped long groove of a depth matched to the
thread diameter, offers considerable protection to the thread.
•It extends a little above and below the eye
•Its function is to assist in the formation of the loop in the
SEWING NEEDLE PARTS
•Concave section above the eye of the needle
•Indentation at back of needle.
•A long scarf helps eliminate skipped stitches by
allowing bobbin hook to loop thread more
•Hole in end of needle through which
•The hole through which the thread
•Eye is located below the scarf
•Needle size and type determine size
and shape of eye.
SEWING NEEDLE AND THREAD
IF THE NEEDLE IS TOO SMALL FOR THE THREAD
• Thread will not pass freely through the eye
• Thread will not fit properly into the long groove.
• Thread will suffer from excessive abrasion.
• Can lead to costly thread breakages in production.
IF THE NEEDLE IS TOO LARGE FOR THE THREAD
• There will be poor control of the loop formation which may
cause slip stitches.
• It will create holes in the fabric which are too big for the
stitches and give an unattractive seam appearance.
• Tends to give rise to damaged fabric along the stitch line,
and in closely woven fabrics, pucker along the seam line due
to fabric distortion.
Most machine needles will
look similar but they will
differ in their tips:
Set/Spear point - These
are used for most woven
Ball point - These have a
rounded tip and are used for
knitted fabrics. The rounded
end allows the needle to
separate the yarns without
cutting them, which reduces
the chance of the fabric
Wedge point - These are
designed to cut a hole as they
penetrate the fabric. They
are used for machining
leather and plastic materials.
Set point needle
SPEAR NEEDLE POINT
SLIM SET POINT
HEAVY SET POINT
Set point NEEDLE POINT
LIGHT BALL POINT
MEDIUM BALL POINT
HEAVY BALL POINT
EFFECT OF DIFFERENT NEEDLE POINTS
Uses: Safest needle choice for most fabrics.
Configuration: Has slightly rounded point and
elongated scarf to enable almost foolproof meeting of
needle and bobbin hook.
Troubleshooting: When fabric is not medium-weight
woven, consider needle specifically suited to fabric. For
example, size 18 universal needle works on heavy
denim, but size 18 jeans needle works better.
BALLPOINT & STRETCH NEEDLES
Uses: Ballpoint needle for heavier, looser sweater
knits; stretch needle for highly elastic fabrics, like
Spandex, or Lycra.
Configuration: Both have rounded points that
penetrate between fabric threads rather than pierce
them. (Stretch-needle point is slightly less rounded
Troubleshooting: Test-stitch knits with ballpoint,
stretch, and universal needles to see which doesn't cut
yarn and yields best results. If ballpoint skips stitches,
try stretch needle.
MICROTEX & SHARP NEEDLES
Uses: Sewing microfiber, silk, synthetic leather;
precisely stitching edges; and heirloom sewing.
Configuration: Has an acute point.
Troubleshooting: Essentially trouble-free, but fabric
may require a Teflon, roller, or even/dual-feed presser
Uses: Excellent for sewing natural leather.
Configuration: Has slight cutting point (almost like
Troubleshooting: On synthetic leather, unless it's
very heavy synthetic, cuts rather than pierces stitch
hole and can tear leather. Most synthetic leathers
require Microtex or sharp needle.
DENIM (JEANS) NEEDLE
Uses: For heavyweight denim, duck, canvas,
upholstery fabrics, artificial leather, and vinyl.
Configuration: Has deeper scarf, acute point, and
modified shaft to sew without pushing fabric down into
needle-plate hole. Goes through fabric and meets
bobbin hook better on dense woven fabrics.
Troubleshooting: If stitches skip when sewing very
heavy fabrics, try larger needle and sew more slowly
or walk needle through fabric (by turning hand crank).
Uses: Enables easier threading for sewers with vision
Configuration: Universal needle with slip-in
threading slot at the eye.
Troubleshooting: Always pull sewn piece back away
from needle before cutting thread so needle doesn't
unthread. Needle works well on woven fabrics, but
may occasionally snag knits, so test-sew to check for
fabric and needle compatibility.
HEMSTITCH (WING) NEEDLE
Uses: Hemstitching or heirloom embroidery on linen
Configuration: Has fins on sides of shank to create
holes as you sew.
Troubleshooting: Stitch is more effective when
needle returns to same needle hole more than once. If
needle pushes fabric into needle hole, put stabilizer
TWIN (DOUBLE) NEEDLE
Uses: Topstitching, pin tucking, and decorative
Configuration: Two needles on single shaft produce
two rows of stitches. Measurement between needles
ranges from 1.6mm to 6mm, and needles come with
universal, stretch, embroidery, denim, and Metallica
Troubleshooting: Be sure throat plate allows for
distance between needles
Uses: Same uses as for double needle.
Configuration: Cross bar on single shaft connects
three needles to sew three stitching rows. Comes with
universal point in 2.5mm and 3mm widths.
Troubleshooting: Same as for double needle.
Uses: Free-motion stitching with dropped feed dogs.
Configuration: Has wire spring above point to
prevent fabrics from riding up onto needle, eliminating
need for presser foot.
Troubleshooting: Before using, practice free-motion
stitching with heavy regular needle, paper, and
dropped feed dogs. Don't pull paper/fabric; instead
gently guide it through stitching. Wear safety glasses
for free-motion work, since needles often break.