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US 5,826,507 AGranted
Method for measuring the amount of fountain solution in offset lithography printing
AssigneeUnion Camp Corporation
InventorPeter Yong Woon Lim
Life of this patent
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Abstract
A method of determining the amount of a fountain solution employed in an offset lithography printing system in which a detectable substance is added to the fountain solution and the amount thereof detected in a target such as the ink rollers and/or the image and non-image areas of the printed paper, the amount of the detectable substance being related to the amount of fountain solution employed in the offset lithography process.
Claims17
A method of determining the amount of a fountain solution employed in an offset lithography printing system comprising:
- a) adding a detectable quantity of at least one detectable substance into the fountain solution;
- b) transferring a portion of the fountain solution to at least one target selected from the group consisting of ink rollers and the image and non-image areas of a printed paper;
- c) measuring the amount of said detectable substance in said at least one target;
- and
- d) determining the amount of fountain solution in said at least one target as a function of the amount of the detectable substance measured in said at least one target.
2 more elements
Dependencies are inferred from the claim text.