▎ 摘　　要

NOVELTY - Self-cleaning coating comprises 1-10 pts. wt. photo catalyst, 1-100 pts. wt. deionized water and 1-40 pts. wt. glue. USE - The self-cleaning coating is useful in washing machine (claimed). ADVANTAGE - The self-cleaning coating utilizes photo catalyst to replace existing detergents; utilizes light source to catalyze; is efficient, environmentally friendly; has safe decomposition of pollutant including dyes, oils, germs, odors and volatile organic compounds and avoids the residual and environment pollution of the traditional washing liquid. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing self-cleaning coating comprising (a) preparing photo catalyst, (b) preparing photo-catalytic slurry including mixing photo catalyst, deionized water and glue uniformly and (c) spraying the photo catalytic slurry in an inner cylinder wall of the washing machine and drying; and (2) use method of the coating in washing machine comprising spraying coating on the inner cylinder wall of the washing machine, and a light source is placed in the washing machine and the light source is ultraviolet light, infrared light or white light.