Patent ID: 7127990
Filing Date: 2006-10-31
Classification: B41F,B41N

Abstract:
1. A damping system for a printing press printing a plurality of printing areas transversely across a web, the system comprising: a roll with at least two partial areas running around the central axis of the roll, said partial areas being made of an ink-friendly material and at least one annular area made of an ink-repellent material, said annular area made of an ink-repellent material being arranged between said at least two partial areas made of ink-friendly material; an oscillator connected to said roll and moving said roll to and fro in an axial direction; a plate cylinder receiving damping agent from said roll, said plate cylinder having a plurality of printing areas to print on the printing areas of the web, each said plate printing area being annular and extending uninterrupted in a circumferential direction of said plate cylinder, each said plate printing area printing a different ink, said ink repellent material having a size to prevent mixing of ink between printing areas of said plate cylinder.