Apparatus and method for controlling temperature of printing pla

Details Apparatus and method for controlling temperature of printing pla Apparatus and method for controlling temperature of printing pla

1991-11-18

1993-03-02

Burr, Edgar S.

Printing

Processes

With heating or cooling

101349, 101216, 165 89, B41F 2304

Patent

active

051899604

ABSTRACT:
In a rotary press, temperature of a printing plate is sensed by an infrared temperature sensor mounted in close proximity to a cylinder carrying the printing plate. Sensor output is used to control a closed loop of a water circulating system which includes one or more water-carrying rollers in an ink train. A water cooler and a water heater are provided in the closed loop and are controlled in response to the sensor output to maintain the printing plate at a temperature which allows proper inking thereof.

REFERENCES:
patent: 1681603 (1926-07-01), Wilhelm
patent: 2971460 (1961-02-01), Shindle
patent: 3741115 (1973-06-01), Keller
patent: 4638851 (1987-01-01), Makihara et al.
patent: 4693179 (1987-09-01), Watts
patent: 4734229 (1988-03-01), Johnson et al.
patent: 4877331 (1989-10-01), Schrors et al.
patent: 4879951 (1989-11-01), Yoshida et al.
patent: 4984628 (1991-01-01), Uchida et al.
patent: 5074213 (1991-12-01), Kurosawa

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