Printing – Planographic – Processes of lithographic printing
Reexamination Certificate
2007-01-16
2007-01-16
Hirshfeld, Andrew H. (Department: 2854)
Printing
Planographic
Processes of lithographic printing
Reexamination Certificate
active
10800857
ABSTRACT:
Disclosed is a method of carrying out lithographic printing using a plate having an image recording layer capable of being developed with dampening water and/or ink, the method including:a development step in which a plate bearing a recorded image, mounted on a plate cylinder and having a given surface speed is subjected to contact with a dampening roller and/or a form roller having a surface speed differing from the surface speed of the plate, and is thereby supplied with dampening water and/or ink; anda printing step in which ink is transferred to a printing material while the dampening roller and form roller remain in contact with the plate.The method of the present invention is a lithographic printing method which uses on-machine development type plates and has a very high productivity because the amount of paper spoilage at the start of printing is low and the time until scum-free impressions are obtained is short.
REFERENCES:
patent: 3467008 (1969-09-01), Domotor
patent: 4724764 (1988-02-01), MacPhee et al.
patent: 4991502 (1991-02-01), Akao
patent: 5562031 (1996-10-01), Garner et al.
patent: 0 770 494 (1997-05-01), None
patent: 2000-052634 (2000-02-01), None
Inno Toshifumi
Naniwa Mutsumi
Hirshfeld Andrew H.
Zimmerman Joshua
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