Dampening System

The dampening system of offset presses that draws a thin film of dampening solution?water with a component of isopropyl alcohol and other additives?over the non-printing areas of the form. The two types are vibrator dampening systems where direct contact exists between the dampening solution holder and a vibrator cylinder and a centrifugal, turbo or brush-type dampening systems which do not have this direct contact. With indirect systems, the dampening system feeds the dampening solution to an inking form roller which in turn feeds ink and dampening solution in dispersion form to the printing plate.

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