Study on the Removal of Pesticide by Washing from the Farm Working Clothes

Abstract

For cotton, nylon, polyester fabrics on which pesticide was absorbed, we investigated to remove pesticide from fabrics under various washing conditions in terms of pH, temperature and detergent. The results obtained are as followes.
1) After extracting pesticide from fabrics in acetone at 40°C for 24hours, we could examine the amount of pesticide using gas chromatograph with FPD detector.
2) For the amount of pesticide on fabrics, cotton had the largest amount of the three. Polyester had more pesticide than nylon,
3) On the washing method of desorption of pesticide, in the case of cotton, was effective, washing with only water. In the case of nylon, it was washing with detergent of SDS in alkaline at 40°C, it's most effective. In the case of polyester, it was very difficult to remove pesticide, so it was better method to use detergent of LAS and NCI than SDS.