The extractions of collagen from tannery wastes by acid, alkali,enzyme, oxidation etc were introduced. The application of collagen fiber in papermaking and its developing tendency were also analyzed.

• 介绍了采用碱处理法、酸处理法、氧化法、酶处理法等从皮革废弃物中提取胶原蛋白的几种方法,还介绍了这些胶原蛋白在造纸中的应用现状及发展趋势。