The alpaca fiber weight-loss was carried using the method of H_2O_2 oxidation pretreating combined with Wolsen acid protease processing. The strength and surface friction property was researched after weight-loss slenderizing, and the relationship between the processing condition of Wolsen acid protease and weight-loss, scale frictional coefficient, and frictional effect were analyzed. At last, the linear fit and regression equation between strength retention and weight-loss of alpaca were educed.
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