TRC
 
 

ROLLER CARE

 
 
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INCORRECT TREATMENT OF THE ROLLER COVER AND ITS EFFECTS
 
Frequent washing:
  • Leads to shortened service life of the roller cover caused by the separation of material particles and excessive chemical stress on the roller cover.
 
Insufficient washing, cleaning and maintenance:
  • Filling in, glazing and hardening of the roller surface.
  • Bad ink splitting.
  • Enhanced wear or pollution of the printing plate by loosening ink rests.
  • Linting and fluffing.
 
Aggressive or wrong Washing Agents:
  • Swelling or shrinkage, causing too high or too low setting.
  • Dissolution or quick abrasion of the cover.
  • Enhanced wear or pollution of the printing plate by loosening ink rests.
  • Linting and fluffing.
 
Usage of inadequate Inks, UV-inks, lacquers etc.
  • Swelling or shrinkage, causing too high or too low setting.
  • Dissolution or quick abrasion of the cover.
  • Hardening or glazing of the roller surface.
 
Dry running at the ends or in the range of reduced ink transport:
  • Premature glazing caused by drying of the ink.
  • Formation of axial and radial cracks.
  • Partial picking of the roller cover.
  • Marks in the printed image.
  • Locally enhanced accumulation of the hickies.
  • Local overheating.
 
Calcareous dampening water:
  • Filling and glazing of the roller surface by calcareous deposits.
  • Ghosting and streaking.
  • Enhanced wear of the printing plate.
 
Inappropriate Cleaning by means of sharp-edged objects like spatula or wire brush:
  • Mechanical damage or scratching of the roller-surface.
  • Hickeys accumulation and loosening of rubber particles resulting in pollution of the printing form and marks in the print.
 
During storage no protection against sun or ozone influence of temperature, noxious gas:
  • Glazing of the roller surface.
  • Embrittlement and formation of cracks.
 
 
 
 
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