The crockmeter is used for the determination of colour fastness of textiles to rubbing under either dry or wet conditions.
It consists of the main unit having an oscillating arm with a finger, which rubs over the test specimen under a specified load. The rubbing finger is cylindrical in shape and has a flat base, which is covered with a piece of standard white crocking cloth which picks up the color lost by the test specimen. A counter with digital display is provided to view the number of rubs.
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