Abstract
Potassium permanganate was selected as oxidant to treat cashmere fiber. Through fuzz mathematics method, the optimum treating condition of cashmere for potassium permanganate was got: temperature 50°C, time 20min, potassium permanganate 3g/L, pH 3; Through the fiber whiteness based on test result, optimum reduction conditions after potassium permanganate treatment was as following: Temperature 45°C, time 10min, sodium sulfite 30g/L, HAc 2%. Through test of felting, tensile property, compression property, it is obtained that potassium permanganate was suitable to oxidizing cashmere. After cashmere fibers were treated in optimum conditions, the strength of processing cashmere fiber decreases slightly, and the elongation and 15 second elasticity of compression recovery rate increases certainly.
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