PROBLEM
Rings or ridges of coating on rollers or blankets.
CAUSE
  • Not enough pressure between rollers or blanket.
  • Not enough coating being applied.
  • Too much coating being applied.
SOLUTION
  • Adjust rollers and blanket settings, tighten NIP.
  • Increase coating viscosity.
  • Check for low areas in roll blanket and blanket packing. Replace or repack if necessary.
  • Reduce coating viscosity.
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