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Fabric faults and its remedies

Presentation about 'Fabric faults and its remedies'

sheshir
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Fabric faults and its remedies

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  1. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 1 Analysis of fabric faults & its remedies

  2. PREPARED BY ©right Name : MAZADUL HASAN SHESHIR ID: 2010000400008 Batch: 13th Batch (Session 2009-2013) Department: Wet Processing Technology Email: mazadulhasan@yahoo.com Blog: www. Textilelab.blogspot.com Southeast University Department of Textile Engineering

  3. SOUTHEAST UNIVERSITY Department of textile Engineering Introduction Objectives of the project: To know about knit fabric faults. To learn the knitting process To know about how to reduce knit fabric faults. To know about how to improve the quality of knit fabric. 05/22/14 3 Analysis of fabric faults & its remedies

  4. SOUTHEAST UNIVERSITY Department of textile Engineering What is fabric defect? What is fault free fabric ? 05/22/14 4 Analysis of fabric faults & its remedies

  5. SOUTHEAST UNIVERSITY Department of textile Engineering F actors that lead to fabric defects A. Material-Related Factors Fiber contaminants Excessive neps and seedcoat fragments Excessive short fiber content Excessive trash content High variability between and within-mix Clusters of unfavourable fiber characteristics Weight variation Twist variation Excessive Hairiness 05/22/14 5 Analysis of fabric faults & its remedies

  6. SOUTHEAST UNIVERSITY Department of textile Engineering F actors that lead to fabric defects (contd.) B. Machine-Related Factors: Failure of spinning preparation to eliminate or minimize short and long-term variation Failure of the mixing machinery to provide a homogenous blend Excessive machine stops particularly during spinning Excessive ends piecing during spinning preparation Poor maintenance and housekeeping Knitting-related defects Dyeing and Finishing-related defects 05/22/14 6 Analysis of fabric faults & its remedies

  7. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 7 Analysis of fabric faults & its remedies

  8. SOUTHEAST UNIVERSITY Department of textile Engineering Drop stitches (holes) Barriness Streakiness Imperfections Snarls Contaminations Spirality Fly Broken needles Sinker lines Oil Lines Broken ends Fabric press off Needle lines Cloth fall- out Grease stain Pin hole Rust stain Oil stain Star Mark 05/22/14 8 Analysis of fabric faults & its remedies

  9. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 9 Analysis of fabric faults & its remedies

  10. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 10 Analysis of fabric faults & its remedies

  11. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 11 Analysis of fabric faults & its remedies

  12. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 12 Analysis of fabric faults & its remedies

  13. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 13 Analysis of fabric faults & its remedies

  14. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 14 Analysis of fabric faults & its remedies

  15. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 15 Analysis of fabric faults & its remedies

  16. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 16 Analysis of fabric faults & its remedies

  17. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 17 Analysis of fabric faults & its remedies

  18. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 18 Analysis of fabric faults & its remedies

  19. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 19 Analysis of fabric faults & its remedies

  20. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 20 Analysis of fabric faults & its remedies

  21. SOUTHEAST UNIVERSITY Department of textile Engineering Fabric press off Fabric press off appear, as a big small hole in the fabric, caused due to the interruption of the loop forming process, as a result of the yarn breakage, or closed needle hooks. Press off takes place, when the yarn feeding to both the short butt & long butt needles, suddenly stops, due to the yarn breakage. Causes: End breakage on feeders, with all needles knitting. Yarn feeder remaining in lifted up position, due to which the yarn doesn’t get fed in the hooks of the needles. Remedies: Needle detectors, should be set precisely, to detect the closed needles & prevent the fabric tube form completely pressing off. Proper yarn tension should be maintained, on all the feeders. 05/22/14 21 Analysis of fabric faults & its remedies

  22. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 22 Analysis of fabric faults & its remedies

  23. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 23 Analysis of fabric faults & its remedies

  24. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 24 Analysis of fabric faults & its remedies

  25. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 25 Analysis of fabric faults & its remedies

  26. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 26 Analysis of fabric faults & its remedies

  27. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 27 Analysis of fabric faults & its remedies

  28. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 28 Analysis of fabric faults & its remedies

  29. SOUTHEAST UNIVERSITY Department of textile Engineering GRADING 0-19 points 20-29 points A- grade B- grade 30 points & above C-grade 05/22/14 29 Analysis of fabric faults & its remedies

  30. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 30 Analysis of fabric faults & its remedies

  31. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 31 Analysis of fabric faults & its remedies

  32. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 32 Analysis of fabric faults & its remedies

  33. SOUTHEAST UNIVERSITY Department of textile Engineering 05/22/14 33 Analysis of fabric faults & its remedies

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