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nature : the preparatory stage of the tannery a process. The drum or zoned tank. Will the skin after soaking immersion lime and sodium sulfide mixed slurry, in the joint role of alkaline ash, making the hair roots loosened for the benefit of hair removal; Alkaline saponification can remove skin and fat, prompted Paper Fiber moderate expansion and fragmentation, facilitate infiltration tanning agent combined with the skin. There is a use muriatic strong alkaline solution for handling raw skin, known as alkaline leaching (Su Zhenbang et al treating), mainly as the Paper shed additional expansion. Hill lambskin leather will often soaking lime and sodium sulfide, etc.-into a paste was applied to the meat surface sheepskin, placed a few hours shed their moult again after liming.
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