Lecture 8Lecture 8

Sewing Machine Needle …Sewing Machine Needle …

Function …Function …

Needle is the necessary part of Needle is the necessary part of sewing machine.sewing machine.

Without needle, it is impossible to Without needle, it is impossible to pass sewing thread through the pass sewing thread through the fabrics or other materials to be sewnfabrics or other materials to be sewn

Needle …Needle …

Parts of needle …Parts of needle …

ShankShank ShoulderShoulder BladeBlade GrooveGroove ScarfScarf EyeEye Point Point TipTip

Shank ...Shank ...

This is the part which fits into the This is the part which fits into the needle bar.needle bar.

It may be of different shapes.It may be of different shapes. One side must be flatOne side must be flat To avoid SlippageTo avoid Slippage

Blade …Blade …

Diameter of this parts explains the Diameter of this parts explains the needle Sizeneedle Size

Groove …Groove …

Why groove is made in the needlesWhy groove is made in the needles

To accommodate the diameter of To accommodate the diameter of sewing thread during stitching when sewing thread during stitching when needle penetrate the fabricsneedle penetrate the fabrics

Scarf …Scarf …

Scarf is needed to support good loop Scarf is needed to support good loop formation.formation.

Good loop formation causes stitch Good loop formation causes stitch formation.formation.

Bad loop formation may cause skip Bad loop formation may cause skip or miss stitchesor miss stitches

Eye …Eye …

Sewing thread passes through the needle Sewing thread passes through the needle eye.eye.

The eye must be wide enough that the The eye must be wide enough that the thread can pass though easily.thread can pass though easily.

During continuous operation of machine, During continuous operation of machine, heat is generated due to the friction of heat is generated due to the friction of thread and needle.thread and needle.

The synthetic thread can melt due to this The synthetic thread can melt due to this heat heat

Point and Tip …Point and Tip …

There are different shapes of points There are different shapes of points availableavailable Round PointRound Point Stay Stay RockedRocked FlatFlat SpearSpear SquareSquare

http://www.organ-needles.com/english/product/indehttp://www.organ-needles.com/english/product/index.htmlx.html

Please visit this link to know more about needlesPlease visit this link to know more about needles