Garments Quality Control in Sewing
Md. Ali Azam Rokon
Dept. of Textile Engineering
NAME ID NO
Anuvab Sen 103-433-041
Mahabubullah Sabuj 121-170-041
Khan Ahosanul Hoque 121-140-041
Md. Rahat Afsary 121-257-041
Md. Rafiul Islam 121-074-041
Md. Foysal 121-160-041
Quality is defined as the level of acceptance
of a good or service. It is a very essential
requirement for any kind of product. Every
product should maintain the standard quality
21st century of globalization market are
becoming more and more complex, that’s why
every industry are facing a high level of
competition for their business. So the product
must fulfill the customer requirement. For this
reason every product should maintain the
Sewing is the craft of fasting or attaching
objects using stitches made with needle &
Knowing the customer need
Designing to meet them.
Faultless construction To
maximize the production of goods
within the specified tolerances
correctly the first time.
Certified performance and safety.
suitable packaging .
Satisfaction Quality can be ensured
from the customer’s point of view by
Quality level of a garment we need to
observe some specific sector
Fault free fabric.
Shade matching of the garments.
Making the pattern as per buyer
All the different parts of the garment
should have the perfect size.
Good stitching, seam formation should be
Additional accessories such as button,
zipper, tag, level is in right position.
Sewing Department Quality
Q.C. In Charge
Quality Control in Sewing
Input material checking
Machine is in well condition
Thread count check
Needle size checking
Stitching fault should be checked
Garments measurement check
Seam fault check
Size mistake check
Some Defects occur in sewing
section and remedies
Some place in the stitch line where the
stitch does not formed
Failure of needle to enter loop at
Needle deflection or bent needle.
Thread loop failure due to
incorrect needle size for thread
Incorrect sewing tension in the
Thread loop failure due to
incorrect setting of thread
The sewing tension in the needle
should be proper.
Perfect needle size for thread
Needle breakage defect
Excessive tension in needle thread
Excessive needle heat, groove or
eye blocked with melted fabric
Thread fraying at needle
Thread trapped at thread guide
Thread trapping at the base of
The needle has to change
immediately. If the scratch on the
garments is very big or deep the
product should be rejected.
Use stronger thread or adjust
Reduce Increase thread guides
and reduce disc tension
Oil mark in garments
• During the sewing operation
oil can accidentally slick out
from the machine and drop on
the fabric and spotted.
Spot lifter chemical use to
remove the oil the mark of the
garments. At first the spot
lifting chemical spray on the
garments spot then air blown
by the machine. The spot
Fabric and / or thread instability.
Poorly controlled fabric feed.
Extension in sewing thread.
Incorrect tension setting.
Structural jamming or inherent
Adjust feed timing and fabric
control for maximum pulling of the
Check tension level in the thread,
Sew with minimum tension
Always adjust bobbin thread
tension first then needle thread
It is also may be a problem in
cutting section where this
parts made numbering
For the lack of experience or
concentration of worker and
if different parts are mixed by
Shade problem parts are
separate and actual parts are
If unexpected parts are
shown by the garments
from sewing area then this
problem is occurred.
For lack of experience or
concentration of worker.
The unexpected part is cut
Stitch line uneven
This fault is occurred by
The stitch has to open and
again sewing. Non
matching thread: Some
times when sewing is done,
the garments and the
sewing thread looked shade
There are certain quality related
problems in garment
Color effects - Color defects that could occur are
difference of the color of final produced garment to the
sample shown, accessories used are of wrong color
combination and mismatching of dye amongst the
Sizing defects - Wrong gradation of sizes, difference in
measurement of a garment part from other, for
example- sleeves of XL size but body of L size. Such
defects do not occur has to be seen too.
Garment defects - During manufacturing process
defects could occur like faulty zippers, irregular
hemming, loose buttons, raw edges, improper button
holes, uneven parts, inappropriate trimming, and
Non sewing defect
Defects due to fault materials, like fabric,
buttons, zipper etc.
Defects due to wrong pattern, wrong
Defects due to wrong spreading ,wrong
Defects due to wrong bundling.
Defects due to staining, oil marks.
Defects due to wrong ironing, wrong folding.
Defects due to wrong packing etc.
Skipped stitch: Missing in loop formation & speed
variation in feed dog is the main cause of these defect.
Staggered stitch: This type of defect occurs for thin
needle if needle size and thread count are not
matched and needle displaced then this defect also
Unbalanced stitch: This type of defect appears to un-
uniform thread tension.
Variable stitch: If feed dog is not in right track then this
type of defect occurs.
Open stitch: This type of defect occurs due to blunt
needle and poor strength of sewing thread.
Needle mark: Needle is the main element of sewing
Various defects in garments
Different shades within
the same garment
Exposed raw edges
Needle cuts / chews
Pulled / loose yarn
Zipper too short.
FIVE COMMON SEWING
MACHINE MISTAKES & HOW
TO FIX THEM
(1) The needle unthreads itself
when worker start
sewing only just threaded the
needle and as soon as they
put their foot down on the
pedal the thread decides to
come out of the needle. It is
Simple to solve though , firstly,
make sure they have a few
inches of thread pulled
through the needle and out
towards the back of the
machine before begin.
Secondly – and this is
something it took a little while
to discover when worker first
began sewing – check the
(2)The fabric is
jiggling around like
crazy Lower the
presser foot, The
presser foot holds
the fabric in place
stitch neatly, not
free style. The
stitching is really
(3)If the stitching looks loopy
on one side and tight on the
other, first reaction might be
to blame the thread tension
setting on the machine.
Some times be right – in
which case, try adjusting the
tension dial and test sewing
on a scrap of fabric until the
stitching looks even on both
sides of the fabric. Yet often
it’s not the tension dial that
needs changing – it’s the
way threaded the bobbin,
which also affects the
(4) Stitching is crazy tight
on the top side Again, this
could need to adjust the
tension dial, but before
go doing that, just check
that spool thread isn’t
caught on the little silver
tension discs on top of
(5) The threads are
knotting up together,
This is another really
common issue – that
threads knot up either
on the fabric, or worse,
they get jammed in the
machine and have to
yank them out or even
unscrew the needle
plate to get them out.
Before start sewing,
check that both spool
and bobbin threads are
sticking out towards the
back of the machine –
otherwise they can get
twisted up in the
Quality control plays an important role in
readymade garments production. Nowadays
buyer requires specific quality in all major
parts of the finished products. What special in
this report is that the information data and
description very much objective & practical.
We have tried to complete this project work as
much we can. It will help us to maintain the
quality of the garments in garments
production. Finally after completing this
assignment we will get some idea about
quality control of garments sewing which will
help us in the future as well as in rich our