1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
2. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
3. The Key Laboratory of High-Tech Organic Fibers of Sichuan Province, Sichuan Textile Scientific Research Institute, No. 2, Twelve Bridge Road, Chengdu 610072, China