Functions of Needle:
The main functions of the needle are:
- Make hole in the fabric material
- Carry the needle through the fabric material and form a loop
- Pass it through the loop
Parts of Needle:
- BUTT
- SHANK
- SHOULDER
- LONG GROOVE
- SHORT GROOVE
- EYE
- NEEDLE POINT
- SCARF
- BLADE
Sewing Needle Parts Description:
Shank:
It is the upper part of needle having cylindrical or flat
size. It is generally larger in diameter as compared to the rest of the needle
due to strength reasons.
Shoulder:
Shoulder is also called as shaft. It is intermediate
between the shank and blade.
Butt:Butt is end of the needle. It helps in determining the
length of the needle when it is inserted fully into the needle bar of the
sewing machine.
Blade:
It is present below the shoulder of the blade till the
eye of the needle. It is the longest part in the whole needle. It accommodates the
eye, groove and scarf. The fabric resistance is reduced by the blade when
needle along with eye passes through the fabric material. It has got great
amount of friction.
Short Groove:
It assists the formation of loop in the needle thread and
generally extended a little above and below the eye in the needle.
Long Groove:
For smooth stitches the long groove must be long enough
to “cradle” thread. Long groove provides a protective channel through which the
thread is drawn. Good protection to the thread can be achieved with correct
shaped long groove of depth matched to thread diameter.
Scarf:
It is above the eye of the needle and has concave shape.
It helps in eliminating the skipped stitches by allowing the hook to loop
thread more easily.
Eye:
Eye is generally the hole in the end of the needle.
Thread is passed through this hole. It is located below the scarf. The shape
and size of the needle depends upon the needle size.
Needle Points:
There are different types of needle points which can be
used as per the fabric we are stitching they are as follows:
- Set/Spear point – Generally used for the woven type of fabrics. (SLIM SET POINT, SET POINT, HEAVY SET POINT)
- Ball point – These type of point is genrally used for knitted fabric and has rounded tip as it works smoothly on the knitted fabric. These type of needle for knitted fabric reduces the chances of fabric laddering. (LIGHT, MEDIUM and HEAVY BALL POINT)
- Wedge point – These points are mostly used fir the plastics and leathers as they penetrate very nicely through the fabric generally used to cut holes.
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