AIR COVERED YARN – FAULTS AND DIAGNOSIS

Just like any other yarn, Air Covered Yarn also experiences some faults which are caused mainly by two issues – Positional Faults and General Faults. Below are some of the faults that are seen in Air Covered Yarn.

  1. Filamentation:
    1. Positional causes:
      1. Damaged/worn guides
      2. Dirty heaters
      3. Damaged friction discs
      4. Waste on feed rollers/bowl
      5. Misthreading
      6. Mechanical damage to supply yarn
    2. General Causes:
      1. Draw ratio too high
      2. Heater temperature too high
      3. Speed ratio too high
      4. D/Y ratio too low
      5. Supply type/finish unsuitable

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Source: www.inviya.com/blog/air-covered-yarn-faults-and-diagnosis/

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