In order to clarify anti-deposition effects of mukuroji pericarps, deposition of carbon black onto cotton and polyester fabrics has been studied in aqueous solutions of mukuroji pericarps. The rates of deposition were evaluated from the reflectivity of stained fabrics. It was revealed that the rate of deposition of carbon black onto the fabrics in an aqueous solution of mukuroji pericarps was lower than that in an aqueous solution of sodium dodecyl sulfate as well as in polyvinyl alcohol, which is a known anti-redeposition agent. In addition, it was revealed that theses effects were not introduced by the saponin component alone, but by the whole mukuroji pericarp which contains the non-saponin component.
