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Home > News & Events > April 2008 >  Tips & Tricks

Alcolor Dampening System

Print quality starts with the interaction of the inking and dampening system: Consistently good results assume a stable ink-water balance. Precise adjustment ensures thin and equal distribution of the dampening agent film on the printing plate. This reduces sheet drying time, allowing the sheets to get through the finishing process sooner.

A responsible printer checks the adjustments every three months and adjusts in line with the operating manual.

The dampening agent ideally has a water hardness of 8° to 12° on the German scale (dH) and a pH value of 4.8 to 5.5. The usual dampening agent temperature is deemed to be between 10°C and 15°C. To prevent the occurrence of print problems, it is recommended that the dampening agent be renewed every 14 days.
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Tips & Tricks
Find out more Tips & Tricks here.
  Decrease in Tone Value
  Darkening
  Horizontal Stripes
  Mottling
  Ghosting
  Emulsification
  Picking
  Crease Formation
  Electrostatic Charge on Paper
  Inking Roller
 
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