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process for liming skins and hides with preservation and separation of the hair, including the following successive steps:
(A) a soaking step in a aqueous liquor containing a surfactant;
(B) an incubation step in an aqueous liquor free of inorganic sulfur but containing hydrotropes and organic sulfur compounds as unhairing agents;
(C) an step for immunization of the hair at a pH between 10 and 14;
(D) a hair loosening step in which inorganic sulfide is added to the float;
(E) a separation step in which the hair is separated from the skins and hides; and
(F) a liming step in which the pelts so obtained are limed in an aqueous alkaline liquor comprising liming aids.
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advantages of liming
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Wang Liming was born in 1960.
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