The unhairing process and traditional hair removal methods in leather manufacture were described. The application and the latest development of the cleaner unhairing technology were reviewed, including enzymatic removal method, the hair-saving method, depilate materials circulation and oxidation method.%介绍了制革生产过程中脱毛工艺和传统的脱毛方法，综述了酶脱毛法、保毛脱毛法、脱毛材料循环法、氧化脱毛等清洁脱毛方法的研究进展及应用。
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