Electronic Crockmeter/Rubbing Fastness Tester is used to determine the color fastness of colored cotton, chemical fiber, blended fabric and leather to dry or wet rubbing. Motorised for frequent
use and long run tests. A test piece of dyed cloth and a piece of white cotton cloth are rubbed together with the tester in a specific pressure and stroke. The color fastness of the sample is judged
by comparing the coloring extent of the white cotton with the gray scale. Fitted with digital electronic presettable counter for strokes.