A Guide to Sewing Machine Needle Selection
The correct selection of sewing machine needles to suit the
thread and fabric being sewn results in more satisfactory stitching. Fine fabrics
should be sewn with fine a sewing machine needle, heavier fabrics with heavier
sewing machine needles. For best results, sewing machine needles should be replaced
when they become even slightly dull or bent or at the completion of every other
garment.
What is a sewing machine needle? It is a slender strand of wire, shaped to
precision that delivers thread to the machine to create a stitch. Sewing machine
needles have become more sophisticated because of new sewing threads and novel
fabrics available in the marketplace. Needles are found in various sizes, with
different shapes and with more than one needle on a single crossbar.
Needle Sizes
Needles range is size from very fine 60\8 to a heavy duty needle 120/19. Most
needles use the two number measuring system. The higher number relates to the
metric system used in foreign counties. It defines the needle shaft diameter
in fractions of a millimeter. The lower number relates to the system in the
U.S and is used to indicate needle shaft diameter.
Type of Needles
- Ballpoint Needle
-
The rounded tip slips between yarns rather than piercing them to eliminate
damage in knit fabrics. Use this needle when working on coarse knits, mesh
fabrics, interlock knits and other fabrics that tend to run if snagged. You
may find a universal point needle is better for finer knits.
- Denim Needle
-
It has an acute point, slender eye and a stronger shaft. Use when sewing
tough, heavyweight fabrics such as denim, duck and canvas. A regular sharp-point
needle can cause crooked stitches in dense fabric.
- Embroidery Needle
-
This needle has a larger eye and a special scarf ( groove above the eye)
to protect decorative threads (lustrous rayons and acrylics) from shredding
or breaking.
- Leather Needle
-
It has the shape like a wedge at the point which gives it superior piercing
power for unyielding fabric such as real leather, suede or heavy vinyl. This
needle makes a clean, large hole as it enters the fabric. It is better to
tie or seal thread ends rather than backstitching to secure. Sew accurately
since removing stitches and restitching will leave hole markings. Synthetic
leathers and suedes can and should be sewn with standard needles. A leather
needle leaves unnecessarily large holes and weakens seams.
- Metallic Thread Needle
-
The larger eye accommodates heavier threads, pampers delicate metallics
that tend to shred and split and makes needle threading easier.
- Quilting Needle
-
A tapered point for stitching through multiple fabric layers and across
intersecting seams makes this needle unique. It prevents damage to sensitive,
expensive materials used in quilting.
- Self-threading Needle
-
This needle has a slotted eye so sewers with limited vision or dexterity
can easily set up the machine. Sew slowly to keep the thread where it belongs.
- Sharp Point Needle
-
It is sharper than the universal point and more slender through the shaft.
Some companies use the term microtex on the label. Use it when sewing on finely
woven fabrics, edgestitching on woven fabrics, heirloom stitching on very
fine fabrics and sewing on synthetic suede. It is a good choice for smooth
stitches on chintz.
- Skip-free Needle
-
This needle has a deeper groove and flatter shank than a universal point.
It brings the bobbin thread closer to the needle for stitch formation. While
it isn't as strong as a standard needle, this needle may solve stitching problems
on synthetic knits and faux suede.
- Stretch Needle
-
A rounded tip and a specially shaped shank creates good stitch formation
on highly elasticized fabrics such as spandex activewear knits, and two way
stretch swimwear knits or when sewing through elastic for direct application
to a garment.
- Topstitching Needle
-
It has an extra-large eye and deeper groove for use with heavier topstitching
thread such as buttonhole twist, 30-weight rayon and cordonnet, or when using
a double thread through the needle for more pronounced stitching.
- Universal Point Needles
-
This needle type has a very slightly rounded point that is quite sharp and
used for general sewing of most knit and woven fabrics. The 14/90 size is
the top-selling needle on the market. The next best seller is size 11/75.
Special-purpose Needles
- Spring needle
-
This needle has a wire spring above the point to prevent fabrics from riding
up onto the needle when the presser foot is removed and the feed dogs are
dropped for free-motion stitching. Spring needles can be purchased in universal,
stretch, denim, embroidery and quilting types.
- Twin and Triple Needles
-
Two or three needles are put on a single crossbar. They can be found in
denim, stretch or embroidery type needles. Their purpose is to create perfectly
parallel, multiple rows of stitching in one pass using a single bobbin thread.
Spacing between the needles varies from 1.6mm to 8mm wide. They are numbered
first by the distance in millimeters between the needles and second by the
size of the needle. Generally the finer the fabric the more closely spaced
the needles should be. Use these needles with an oblong throat-plate opening
such as those found on every zig-zag machine.
- Wing Needles
-
Fins on the sides of the shank create large holes in tightly woven fabrics
such as linen and batiste. Another name used is Hemstitch needle. It is used
for hemstitching, heirloom embroidery and other decorative techniques. Wing
needles are available as singles or as twins that have a wing needle and a
standard needle on a single crossbar.
Serger Needles
Conventional sewing machine needles are standardized by manufacturers, but
not so with serger needles. There are about 13 needle systems available for
sergers. Always consult your serger machine manual when replenishing your
needle supply.
A serger may take a special needle such as an industrial needle with a flat
or round shank. Other sergers may use the standard machine needle sizes
11/75 or 12/80 as well as special needles such as ballpoint, metallic or
embroidery. Test the stitch formation by manually turning the wheel to be
sure the loopers and needles interact properly.
When two needles are used with the serger, the needles are set at slightly
different heights. This is the correct configuration. Check your manual to
be sure the right needle is supposed to be lower than the left needle on a
2-thread serger. This height difference is due to the rising arc of the
upper looper as it comes up and over the fabric.
Changing Needles for Conventional and Sergers Machines
A guide to follow for conventional sewing machines is to insert a fresh
needle after every 10 to 12 hours of sewing or after every two garments.
Select the needle size according to the fabric you are using. Another sign
that it may be best to try a new needle is when you encounter stitching
problems with a new type of sewing thread or a new sewing technique.
For serger machines, consider changing the needle after eight or ten
garments. Since serger thread doesn't slide back and forth through the eye
of the needle, changing the needle may not occur as often. If the serger
does begins to skip, try changing the needle.
The new all purpose golden ball sewing machine needle is ideal for working
with knits, as well as woven synthetic and natural fibers. The elongated
scarf virtually eliminates skipped stitches. The golden ball point will not
damage delicate fibers.
A regular sewing machine needle is suggested for use with woven fabrics.
Style 15 X 1 sewing machine needles, are used on the majority of household
sewing machines, (European equivalent Syst 705). They range in sizes from 8
to 20 with the lower number indicating the finer sewing machine needle. Most
popular sizes are 11 and 14.
A rounded "ball" point sewing machine needle is recommended for use with
tricots, jerseys, lingerie and power net. Unlike sharp, pointed sewing
machine needles which pierce fibers of knit / fabrics, destroying
elasticity, ball points slip between fibers, preventing damage to fabric,
and annoying skipped stitches. Select light or medium ball in the correct
size to suit fabric.
A wedge cutting point sewing machine needle is recommended for use with
leather and leather look vinyls.
Wedge cutting points pierce leather more easily than ordinary sewing machine
needles, resulting in more satisfactory stitching. [All Denver Fabrics'
wedge point sewing machine needles are identified as "leather sewing
machine needles".]
A general rule when replacing sewing machine needles, is that the flat side
of the sewing machine needle is placed to the back of the machine, if the
bobbin is put in from the front. If the bobbin of the machine is put in from
the side, the flat of the sewing machine needle is placed to the right.
Sources:
Sew News, January 1996 and http://www.denverfabrics.com, August,
2005
Information provided
is for educational purposes only.
Allbrands.com is not responsible for results using these suggestions.