Process for the defined production of an ink distribution approp

Details Process for the defined production of an ink distribution approp Process for the defined production of an ink distribution approp

1990-02-20

1991-04-30

Fisher, J. Reed

Printing

Processes

Condition responsive

101350, 101365, 101DIG32, B41F 3104, B41F 3120, B41M 2708

Patent

active

050108204

ABSTRACT:
In the inking unit of a rotary printing press stand, a specified zonal adjustment for each print job is made to the ink ducts, which corresponds to the ink consumption required for the printed product in question. To create an ink distribution in the inking unit appropriate to the print run during the conversion of the inking unit from a previous job to a subsequent and new print job, the invention provides an improved method for the removal of the current ink profile so that the new ink profile can be established for the subsequent print job in a short time, without the necessity of emptying, cleaning and washing the inking unit. To change the ink profile before the beginning of printing, two process steps are proposed. First, the ink profile in the inking unit from the previous job is removed while the machine is running, and thereafter the ink profile in the inking unit appropriate to the subsequent print job is established under precisely defined conditions. Alternatively, a direct transition is made between the previous and subsequent required ink profiles.

REFERENCES:
patent: 3771446 (1973-11-01), Kaneko et al.
patent: 3965819 (1976-06-01), Punater
patent: 4655135 (1987-04-01), Brovman
patent: 4660470 (1987-04-01), Kramp et al.
patent: 4782756 (1988-11-01), Howard

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