A device used to measure the tack, or stickiness, of a printing ink by means of determining the torque produced by a series of rotating inked rollers. Inkometers are frequently used to compare and contrast the tack of various inks to be used in wet multi-color printing processes, where the tack of the first ink printed must exceed that of the ink printed on top of it. An Inkometer is also called a Tackoscope.

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