Weaving process in textile

Weaving process in textile

1. Welcome to My Presentation Presented By: Md.Ibrahim Khalil ID:-16173207095 Intake:-19 Department of Textile Engineering. Bangladesh University of Business & Technology 1

2. My Presentation Topic Is Weaving Process in Textile 2

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. 3

4. Yarn Preparation Process Diagram 4 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.  5

6. Objectives of Warping: To wound up fixed length of yarn onto a warp beam. To increase the quality of yarn. To increase the production. To make convenient yarn sheet for next sizing process. 6

7. Figure of Warping : 7

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. 8

9. Objects of Sizing in Weaving: It is used to remove the projecting fibers from the yarn surface . This process is used to maintain required quality fabric. It is used to increase smoothness of warp yarn. In case of blended or synthetic yarn, this process is used to reduce electrostatic formation in yarn . It is used to reduce the hairiness of warp yarn This process is used to develop the weave ability of warp yarn. 9

10. Schematic of a simple sizing configuration 10

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. 11

12. Objects of drawing:  To increase strength . To reduce creep properties To increase orientation and crystallinity. 4.  To remove brittleness 12

13. Drawing frame machine: 13

14. Weaving principles Weaving means to make cloth and other object. Threads or yarns are passed under and over each other. 14

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16. Important parts of power Loom: 16

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: 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. 17

18. Figure of Primary Motion: 18

19. Motion of Loom: 19

20. Weaving Structure: There are three basic weave structures for fabric manufacturing. They are: Plain Weave. Twill Weave. Satin Weave or Sateen Weave. 20

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. 21

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. 22

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. 23

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. 24

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26. 2 . Broken picks or weft: A filling yarn that is broken in the weaving of fabric. 26

27. 3. Wrong end color: It is produced in woven fabric due to the wrong drawing of colored yarn. 27

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 28

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31. THE END THANK YOU 31