Ink removal, circulating and distributing system

Details Ink removal, circulating and distributing system Ink removal, circulating and distributing system

1984-02-29

1985-07-09

Fisher, J. Reed

Printing

Planographic

Processes of lithographic printing

101148, 101350, B41F 736, B41F 3106, B41L 2512

Patent

active

045274797

ABSTRACT:
A method and apparatus for continuously using ink and dampening fluid in a printing system includes removing ink and dampening fluid from a form roller after the form roller engages the printing plate. Mixing of the removed ink and dampening fluid to form a substantially homogeneous printing liquid is accomplished by circulating the removed ink and dampening fluid to a reservoir where it is mixed with ink in the reservoir by an auxillary blender. The homogeneous mixture is further circulated to the center of a metering nip between two rollers and flows longitudinally of the rollers at a rate to prevent separation of the dampening fluid from the ink. Unused printing ink and dampening fluid is returned to the reservoir with the ink and dampening fluid removed from the form roller.

REFERENCES:
patent: 2821132 (1958-01-01), Brode
patent: 2986088 (1961-05-01), Chase et al.
patent: 3557817 (1971-01-01), Royse
patent: 3896730 (1975-07-01), Garrett et al.
patent: 3926114 (1975-12-01), Matuschke
patent: 3968770 (1976-07-01), Marrs
patent: 4040348 (1977-08-01), Gertsch et al.
patent: 4233898 (1980-11-01), Dahlgren

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