Ink removal method for printing press

Details Ink removal method for printing press Ink removal method for printing press

2005-01-04

2005-01-04

Hirshfeld, Andrew H. (Department: 2854)

Printing

Processes

C101S148000, C101S351100, C101S425000

Reexamination Certificate

active

06837161

ABSTRACT:
An ink removal method for a printing press includes an ink removal step of bringing ink form rollers and a dampening form roller into a throw-on state relative to a plate cylinder, and bringing the dampening form roller into a throw-off state relative to a ductor roller of a dampening unit. The ink removal method has high general purpose properties, and can remove ink from the dampening form roller with high accuracy by simple means, i.e., changing throw-on and throw-off timings for existing rollers without using a rider roller or the like.

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patent: 4724764 (1988-02-01), MacPhee et al.
patent: 5174210 (1992-12-01), Rodi et al.
patent: 5676057 (1997-10-01), Hummel et al.
patent: 5992317 (1999-11-01), Hummel et al.
patent: 7-171943 (1995-07-01), None

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