Colourfastness Testing. Colourfastness to rubbing / crocking. Colorfastness to Crocking. Crocking - A transfer of colorant from the surface of a colored yarn or fabric to another surface or to an adjacent area of the same fabric principally by rubbing.
Colourfastness to rubbing / crocking
Verification checks using the Crockmeter Calibration Cloth are
extremely important to avoid incorrect results.
Potential problems include:
Colourfastness to aqueous agencies: