LC cellulase is a liquid which produced by microbial submerged fermentation. It can be used for biopolishing treatment of cotton, harl, cotton/viscose, cotton/tencel, other fiber fabrics and garments in order to get a long-term anti-pilling effect, glossy finish, surface evenness, lines sharpness, softness and drapability; Besides, better abrasion effect can be obtained to deinm fabric. Three kinds of LC cellulase product are LC-600, LC-800 and LC-1200, respectively.