Temperature controlled system for printing press

Details Temperature controlled system for printing press Temperature controlled system for printing press

1995-10-11

1997-03-18

Fisher, J. Reed

Printing

Inkers

Roller

B41F 3100

Patent

active

056112785

ABSTRACT:
The system of the present invention controls the temperature of ink so as to enhance print quality. An ink roller has a circulation path therein. A circulation system circulates fluid, such as water, through the ink roller and through a heat exchanger. The heat exchanger is part of a refrigeration and heating system that selectively cools and heats the circulating water. The refrigeration and heating system uses a compressor, an expansion valve and the heat exchanger. To provide refrigeration, refrigerant fluid is circulated in the refrigeration and heating system through the expansion valve and to the heat exchanger. To provide heating, the expansion valve is bypassed by a conduit, wherein hot fluid from the compressor flows directly to the heat exchanger.

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patent: 5272971 (1993-12-01), Fredericks
"Temperature Modulation of the Inking System of Rotary Offset Presses as a Process-Stabilizing Factor", Technischer Informationsdienst, 1982, pp. 1-4 .

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