Environmentally Acceptable Treatment For Shrink-Proofing Of Wool

In this paper, protein enzyme/ LTP(low-temperature plasma)and chitosan/ LTP compound treatment on wool fabric were researched not only for shrink-proofing, but also for reducing the pullute from traditional shrink proofing of wool. Langmuir probe and spectral measurement were used for measuring the voltage-current waveform and spectrum of glow discharge, which were used for analyzing the change rule of electron density. The results showed that the electron density was impacted by the angle of measure and the area of fabric .The electron density increased with the power and the pressure of LTP treatment. The electron density didn't change with time on a given condition of the power and the pressure. In the range of my investigation, treatment with LTP, protein enzyme and chitosan independently had some effect for shrink-proofing, but couldn't achieve the IWS standard of machine-washable .While the result could be improved through protein enzyme/LTP compound treatment. The optimum conditions of protein enzyme/LTP compound treatment were as follows, MG concentration is 0.8g/L, LTP power is 250w, pressure is 35Pa and treatment time is 5min. The shrinkage rate of finished wool fabric was 2.28%, GC106 concentration is 0.7 %(w/v), LTP power is 250w, pressure is 35Pa and treatment time is 5min. The shrinkage rate of finished wool fabric was 2.16%. Among them, MG was basic protein enzyme and GC106 was acidic protein enzyme. They could be selected according to the experimentation.