industrial Engineering

1. National Textile University
BSc. Textile Engineering
Garments Manufacturing
LAB REPORT
GM 3042
Industrial Engineering
6th
Semester
Garments Manufacturing
Experiment No.1
To study different types of stitches & to apply them on fabric.
Abdullah Maaz
15-NTU-0003

2. Date Experiment was conducted: 7/2/2018
Date Report was submitted: 14/2/2018
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3. Abstract:
In this experiment I will discuss about the different types of stitch classes. Stich classes
are classified according to their use and formation of stich. Which are single thread chain stitch,
hand stitch, lock stitch, multi thread chain stitch, over lock stitch and cover stitch.
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4. Table of Contents
Abstract:............................................................................................................................................i
Table of Contents.............................................................................................................................ii
1.Introduction ..................................................................................................................................1
1.1.Objectives..................................................................................................................................1
1.2.Theory........................................................................................................................................1
2.Equipment and Materials..............................................................................................................1
3.Method..........................................................................................................................................1
5.Conclusion:...................................................................................................................................2
6. Appendix ..................................................................................................................................3
........................................................................................................................3
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5. 1. Introduction
1.1. Objectives
• The main objective of this practical is to differentiate b/w stich classes and to know about
their application.
1.2. Theory
Stitch is the configuration of interlacing of sewing thread in a specific repeated unit.
2. Equipment and Materials
• Over lock m/c
• Flat lock m/c
• Lock stitch m/c
• Fabric
• Scissor
3. Method
• The basic chain stitch is made by first descending needle thread through fabric and looper
holds thread and form a loop for needle thread to enters as it descends for next stich
• The lock stitch class 300 is the most commonly used in daily life and in industry. Lock
stitch m/c requires two threads to form a stitch, one is needle thread that feeds thread
from the top & other is lower thread that feeds from a bobbin.
• The multi thread chain stitch requires one or more needle thread that form loops as they
pass through the fabric & interloop with the looper thread on the underside. he 400 class
requires an upper & a lower thread & use a looper to carry the lower thread & form a
thread loop on the underside of the fabric.
• In class 500 one or more group of threads, and have looper. The loops from a narrow
band of stitching along the edge of the fabric with threads intersecting at the edge &
preventing the fabric from fraying and finishing the edge of fabric.
• In class 600 the stitch is formed by two or more needle loops passing through the
material, interloping on the underside & inter locking on upperside. A spreader or cover
thread finger carries the cover thread across the surface of the fabric b/w the needles.
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6. 4. Observation and Result
Serial No Stitch Class Stitch code Stitch Diagram
Top view
Stitch Diagram
Bottom view
1 300 301
2 400 401
3 400 406
4 400 407
5 500 504
6 500 514
7 500 516
8 100 103
9 600 605
5. Conclusion:
From the obvious we conclude that every stich class has his own application and specific
properties. By understanding the structure we can use it for application.
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7. 6. Appendix
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