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Yarn containing rolled fibre mass, which can be clearly seen on black board at close distance; measurable on Uster imperfection Indicator.

  • Damaged fabric appearance
  • Shade variation in the dyed fabrics
  • An abnormally thick place or lump in yarn showing less twist at that place is called slubs

  • Accumalation of fly and fluff on the machine parts
  • Poor carding.
  • Defective ring frame drafting and bad piecing
  • Improperly clothed top roller clearers.

  • Machine surfaces to be maintained clean.
  • Proper functioning of pnemafil/roller clearers to be ensured.
  • Broken teeth gear wheel to be avoided and proper meshing to be ensured.
  • Better fiber individualisation at cards to be achieved.

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