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EFFECT
- Efficiency loss in ring frame
- Drop in winding efficiency
- More knots for a given length of wound yarn
CAUSES
- Under utilisation of bobbin height
- Lower number of coils /inch
- Higher chase length
- Cop bottom bracket properly not set
- Improper selection of ratchet
- Ratchet pawl pushing number of teeths/movment in the ratchet wheel
- Spinning empties wall thickness is high
RECTIFICATION
- Optimum chase length, coil spacing and wall thickness of empy cops tobe ensured
- Ratchet/pawl movement to be properly set
- Free space of only 7.5mm to be maintained at the top and bottom of the cop
- Free space only 0.75mm only to be maintained between full cops and the ring
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