Chill Roll

An internally-cooled metal roller or cylinder located just beyond a web press dryer used to lower the temperature of the printed web before rewinding. Chill rolls are used to remove the heat generated either by friction on the moving web or by the heat used to dry the ink.

Chill rolls are also necessary for the second stage of the drying of heat-set inks, which first need to be heated by a heat-set dryer then cooled. (See Web Offset Lithography: Dryers and Chill Rolls.)

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