: Study on sequential sewing process of trousers/pants

1. BGMEA University of Fashion and
Technology (BUFT)
Course Title: Apparel Manufacturing Engineering-II (lab)
Course Code: TEX3104
Experiment No: 07
Experiment Name: Study on sequential sewing process of trousers/pants.
Group: 03 Sec-2A
Lab Report
Submitted to: Submitted by:
Taslima Ahmed Tamanna Id. 191-060-801
Lecturer, BUFT 191-097-801
Department of TE 191-101-801
191-113-801
Date: 05-12-2021 191-117-801

2. 191-097-801
Experiment No: 07
Experiment Name: Study on sequential sewing process of trousers/pants.
Introduction: Trouser is the newest fashion of the world. Most of the people in most of the
states are interested to wear trouser pants. different type of trouser are manufactured in the
apparel industry. various types of finishes are applied to the trouser to increase its popularity.
Any types of defects can be the cause of rejection of the product, for this reason exact care is
requires to maintain in every stage of the manufacturing.
Objective:
➢ To know about sewing process of different types of trousers/pants.
➢ To know about different types of sewing machine uses in sewing process.
➢ To know about different seam and stitching.
➢ To get a clear idea on Inspection process in sewing section.
ID:191-060-801,191-101-801,191-113-801
Sequential sewing process of trousers/pants
Preparation of
pattern
Cutting the fabric
according to pattern
Back rise and front
rise joint
Cut out the top for
pocketand pocket
joint with the body
part
Back and front
matching(number)
Side sewing of the
trouser
In side sewing
Waist belt cutting
and sewing
Belt and body joint
Joining the sewing
pieces like joining
Zipper for fly
Bottom hem sewing
Button hole opening
and button
operation or button
attaching
Sewing the belt loop
Ironing
Final checking
operation and
packaging

3. Different stitch type of a trouser/pant:
Fig: Different part and stitch type of trouser /pant

4. Side seam:
Fig: Side seam
Length of side measured from the top to the bottom of the trousers, starting from the top of the
side seam at the hollowest part of the waist, and including the waistband. This measure should
be taken tightly, and it is the leg itself, not the trousers, which is to be measured.
Seam: Edge neatening seam. (seam class-6)
Stitch: Over locking or Over edged stitch. (stitch type 500)
Sewing machine: Overlock sewing machine.
Figure: Overlock sewing machine.
Overlock sewing machine: Over lock, sewing is used to form over lock stitch. It is used for knitted
and woven fabric. Side seam, armhole, the sleeve of the shirt and inseam and side seam of pant
also done by over lock stitch machine. Over lock sewing machines usually run at high speeds,

5. from 1000 to over 9000 rpm, and most are used in industry for edging, hemming and seaming a
variety of fabrics and products. Over lock, stitches are extremely versatile, as they can be used
for decoration, reinforcement, or construction.
Button Holing sewing:
Fig: Button hole
The button is used to close the top of the fly of jeans pant. Buttonholes are reinforced holes in
fabric that buttons pass through, allowing one piece of fabric to be secured to another.
Stitch: Lock Stitches (stitch type 301)
Sewing machine: Button holing machine.
Figure: Button holing machine.
Button holing machine: It is a simple automatic machine. Button positioning can be automatic.
Sewing is according to the hole in button and may be cross or parallel. Button can be sewn using
lock stitch or chain stitch. Automatic feeding of the shirt buttons.

6. In side sewing:
Fig: E to F is inside sew
Seam: Edge neatening seam. (seam class-6)
Stitch: Over locking or over edged stitch. (stitch type 516)
Sewing machine: Overlock sewing machine.
Figure: Overlock sewing machine.
Overlock sewing machine: Over lock, sewing is used to form over lock stitch. It is used for knitted
and woven fabric. Side seam, armhole, the sleeve of the shirt and inseam and side seam of pant
also done by over lock stitch machine. Over lock sewing machines usually run at high speeds,
from 1000 to over 9000 rpm, and most are used in industry for edging, hemming and seaming a
variety of fabrics and products. Over lock, stitches are extremely versatile, as they can be used
for decoration, reinforcement, or construction.

7. Bottom hem sewing:
Fig: Bottom hem
The bottom hem is in the bottom of the trouser which is folded and attached by sewing.
Seam: Superimposed seam. (Class-1)
Stitch: Single needle Lock Stitch (stitch type 300)
Sewing machine: Single needle lock stitch sewing machine.
Fig: Single needle lock stitch sewing machine.
Single needle lock stitch sewing machine: A single needle lock stitch machine is called a plain
needle sewing machine. A single needle lock stitch machine is mostly used as an
industrial sewing machine. Modern single needle lockstitch has a thread trimmer which operates
at the highest speed of its kind. Lockstitch machine is the most commonly used sewing machine
in the apparel industry, especially in woven garments. Here in this article, I am going to share
Features of Single Needle Lock Stitch Machine with you for a clear understanding of a single
needle lock stitch sewing machine.

8. Pocket part sewing:
Fig: Front and back Pocket
Seam: Attaching of separate items (seam class-7)
Stitch:Overlock stitch (Stitch class 500)
Sewing machine: Overlock sewing machine. Also bartack machine .
Fig: Overlock sewing machine.
Overlock sewing machine: Over lock, sewing is used to form over lock stitch. It is used for knitted
and woven fabric. Side seam, armhole, the sleeve of the shirt and inseam and side seam of pant
also done by over lock stitch machine. Over lock sewing machines usually run at high speeds,
from 1000 to over 9000 rpm, and most are used in industry for edging, hemming and seaming a
variety of fabrics and products. Over lock, stitches are extremely versatile, as they can be used
for decoration, reinforcement, or construction.

9. Belt loop joining:
Fig: Belt loop join
Belt loops are added with jeans pant so that belt can fix on it and hold the pant where we
supposed to hold. There are five to seven loops are there in jeans pants. But most of the designers
prefer five loops onto the waistband.
Seam: Attaching of separate items (seam class-7)
Stitch: Multithread chain stitch (Stitch class -401)
Sewing machine: Feed of the arm machine.
Fig: Feed of the arm machine
Feed of the arm machine: Feed of the arm machine is actually a chain stitch machine for chain
stitch designs working with sew and stitch. It contains looper instead of bobbin. By this machine,
stitch can be produced on heavy fabrics, like denim or jeans; it has opportunity of stitching by
folding the fabrics.

10. Waist band sewing:
Fig: Waist band
Stitch: Overlock stitch (Stitch class 500)
Sewing machine: Overlock sewing machine.
Figure: Overlock sewing machine.
Overlock sewing machine: Over lock, sewing is used to form over lock stitch. It is used for knitted
and woven fabric. Side seam, armhole, the sleeve of the shirt and inseam and side seam of pant
also done by over lock stitch machine. Over lock sewing machines usually run at high speeds,
from 1000 to over 9000 rpm, and most are used in industry for edging, hemming and seaming a
variety of fabrics and products. Over lock, stitches are extremely versatile, as they can be used
for decoration, reinforcement, or construction.

11. 191-117-801
Conclusion: Sewing is the process of using a needle and thread to connect pieces of fabric or
attach them to fabric surfaces. From this experiment we get to know about different types of
shirts we wear have a number of components that are joined together by means of stitches.
Stitches are made by using sewing machines. In this experiment we will be able to learn about
the process of sewing any type of shirt sequentially. By doing this we will be aware of which
process we have to do one after the other. It will help us a lot in the future and make our work
easier.
Reference:
https://www.historical-tailoring.com/2019/11/trousers-measurements/
https://ordnur.com/jeans/different-parts-of-jeans-pant/
http://textilefashionstudy.com/process-flow-chart-of-trouser-sewing-jeans-production-
procedure/
https://diutestudents.blogspot.com/2018/06/aprlr2-2.html
https://www.juki.co.jp/industrial_e/products_e/apparel_e/button_hole_e/
https://ordnur.com/sewing/features-of-single-needle-lock-stitch-machine/
https://www.iigm.in/Industries/Apparel/Sewing/Feed-of-the-arm-
machines/Br#:~:text=Feed%20of%20the%20arm%20machine,contains%20looper%20instead
%20of%20bobbin.&text=By%20this%20machine%2C%20stitch%20can,stitching%20by%20fold
ing%20the%20fabrics.