PGA 202
Off Set Printing
Chapter 8 : Printing Machine Cylinders
DAE Printing & Graphic Art Technology | Second Year
Short Questions
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
The undercut on a cylinder allows for plate or blanket height adjustments by accommodating packing material.
The blanket cylinder transfers the ink image from the plate to the paper in offset printing.
In offset printing, plate measurement is the thickness of the plate plus the cylinder undercut, minus the plate thickness. Packing measurement involves using consistent-thickness materials and ensuring they maintain thickness under pressure. Tools like the PosiTector 6000 FTS probe can help measure these accurately.