This presentation provides an overview of the weaving process. It discusses yarn preparation including warping, sizing, and drawing processes. The primary motions of weaving - shedding, picking, and beating-up - are explained. Common weave structures like plain, twill, and satin are described. Defects in woven fabrics such as broken picks and wrong end color are also highlighted. The presentation concludes with examples of different woven fabric types.

1. Welcome to My
Presentation
Presented By:
Md.Ibrahim Khalil
ID:-16173207095
Intake:-19
Department of Textile Engineering.
Bangladesh University of Business & Technology
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2. My Presentation Topic Is
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3. Weaving
Weaving is a method of textile production in
which two sets of yarns or threads are
interlaced at right angles to form a fabric or
cloth.
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4. Yarn Preparation Process Diagram
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Warp Yarn, Weft Yarn
1 Warping
2 Sizing
3 Draw-In
Weaving

5. Warping:
The parallel winding of warp ends from
many winding packages (cone, cheese) on to a
common package (warp beam) is called
warping.
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6. Objectives of Warping:
1. To wound up fixed length of yarn onto a warp
beam.
2. To increase the quality of yarn.
3. To increase the production.
4. To make convenient yarn sheet for next sizing
process.
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7. Figure of Warping :
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8. Sizing:
Sizing is the process of applying adhesive
coating on the surface of yarn. This process is
dome after completing warping process. It is
one the most important process to achieve
optimum weaving proficiency specially for
filament and blended yarns.
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9. Objects of Sizing in Weaving:
1. It is used to remove the projecting fibers from
the yarn surface.
2. This process is used to maintain required quality
fabric.
3. It is used to increase smoothness of warp yarn.
4. In case of blended or synthetic yarn, this process
is used to reduce electrostatic formation in yarn.
5. It is used to reduce the hairiness of warp yarn
6. This process is used to develop the weave ability
of warp yarn.
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10. Schematic of a simple sizing configuration
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11. Drawing:
The process by which the yarn or fiber is
elongated by passing it through a series of pair
of rollers, each pair moving faster than the
previous one is called drawing. It is a system
which removes stable/weak and brittle
properties of filaments.
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12. Objects of drawing:
1. To increase strength.
2. To reduce creep properties
3. To increase orientation and crystallinity.
4. To remove brittleness
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13. Drawing frame machine:
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14. Weaving principles
Weaving means to make cloth and other
object. Threads or yarns are passed under and
over each other.
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16. Important parts of power Loom:
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17. Primary Motion of Weaving:
In order to interlace warp and weft threads to produce
fabric on any type of weaving machine, three operations
are necessary:
A. Shedding:
Separating the warp threads, which run down the fabric into
two layers to form a tunnel known as the shed.
B. Picking:
Passing the weft threads, which traverses across the fabric,
through the shed.
C. Beating-up:
Pushing the newly inserted length of weft, known as the pick,
into the already woven fabric at a point known as the fell.
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18. Figure of Primary Motion:
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19. Motion of Loom:
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20. Weaving Structure:
There are three basic weave structures for fabric
manufacturing. They are:
1. Plain Weave.
2. Twill Weave.
3. Satin Weave or Sateen Weave.
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21. Plain Weave:
Plain weave is produced when each weft yarn
passes over and under each warp yarn with
each row alternatives. It is the simplest form
of weaving structure.
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22. Twill Weave:
Twill weave is similar to plain weave, In this
the warp yarn skip at regular predetermined
intervals creating a diagonal rib in the fabric
surface. Twill weave is more flexible than plain
weave.
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23. Satin & Sateen weave:
Satin weave is so called when fabric is
manufactured by filament yarn like silk or
nylon. Flexible fabric is produced by this
weave structure. In the other hand, when
fabric design is produced by short staple yarns
like cotton that is called sateen weave. In satin
structure, the face of the fabric consists only
warp on the weft threads giving the fabric a
smooth and lustrous surface.
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24. Major Defects Found in Woven Fabric:
• 1. Bad or defective selvedge:
Bad selvedge in woven fabric due to the faulty
weaving. Here, warp ends being set too far
apart for the thickness of the yarn or in
finished fabric.
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26. 2. Broken picks or weft:
A filling yarn that is broken in the weaving of fabric.
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27. 3. Wrong end color:
It is produced in woven fabric due to the wrong
drawing of colored yarn.
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28. WOVEN FABRIC NAME & APPEARANCE
IMAGE:
1) Solid Fabric
2) Yarn Dyed Check
3) Yarn Dyed Stripe
4) Printed Fabric
5) Denim Texture
6) Printed Denim
7) Skin Texture (Denim)
8) JEANS
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31. THE END
THANK YOU
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