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.
- Filamentation:
- Positional causes:
- Damaged/worn guides
- Dirty heaters
- Damaged friction discs
- Waste on feed rollers/bowl
- Misthreading
- Mechanical damage to supply yarn
- General Causes:
- Draw ratio too high
- Heater temperature too high
- Speed ratio too high
- D/Y ratio too low
- Supply type/finish unsuitable
- Positional causes:
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Source: www.inviya.com/blog/air-covered-yarn-faults-and-diagnosis/