We dyed cotton fabric samples using colored clay pigments, which can be recovered from dyehouse effluent and be reused. The Lab color space (CIE L∗a∗b∗) values of both the clay pigments and the fabric samples after dying were measured. The compounds in the pigments, and the compounds adhering to the dyed fabrics, were analyzed using XRF, XRD, SEM and EDS. We then determined which minerals affected the color of the clay pigments and the dyed fabrics and discussed their interrelationships in our analyses.
