Method for dampening a printing form for offset printing

Details Method for dampening a printing form for offset printing Method for dampening a printing form for offset printing

1997-10-21

1999-09-28

Burr, Edgar

Printing

Processes

101451, B41C 3300

Patent

active

059570547

ABSTRACT:
A method for dampening a printing form for offset printing wherein a quantity of dampener applied to the printing form by transfer rollers is controlled by adjusting the rpm of one of the transfer rollers in accordance with the rotary angle position of a channel or gap of a form cylinder carrying the printing form includes periodically varying the rpm of at least one of the transfer rollers during each revolution of the form cylinder.

REFERENCES:
patent: 4724764 (1988-02-01), Macphee et al.
patent: 4981077 (1991-01-01), Alvarez
patent: 4991502 (1991-02-01), Akao
patent: 5148747 (1992-09-01), Rodi et al.
patent: 5493970 (1996-02-01), Stoffler et al.
patent: 5520113 (1996-05-01), Joss et al.
patent: 5568769 (1996-10-01), Louerer
Japanese Patent Application No. 7-164619, dated Jun. 27, 1995, fuzzy-based dampening solution controller.

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