Research of the Farm Working Clothes to Reduce the Load for the Environment

为了减轻环境负荷，我们对农用工作服进行了调查。重点研究了在农业生产中减少紫外线照射、恶臭和农药中毒对农民的影响。研究结果总结如下：1.紫外线透过衣物我们研究了影响紫外线透过衣物的因素。由于纤维材料的作用，染色和防纤维的研究已有报道。我们一直在关注服装密度和纱线捻度的影响。我们发现，衣服的密度越高，纱线的捻度越低，紫外线的透过率就越小。此外，我们还进行了额外的实验，以验证堆叠两件衣服的效果。结果，当样本-1具有比样本-2更高的UV透射率时，样本-1/样本-2(这里，样本-1和样本-2存在于入射光束侧和另一侧，Re…更具体地说)显示了比样品-2/样品-1.2的情况更低的总紫外线透过率。农用工作服对恶臭气体的吸附和解吸。纤维对恶臭气体的吸收随着纤维含水率的增加而增加。我们发现了纤维的吸附量与溶解度参数之间的关系。利用红外光谱研究了恶臭气体的脱附行为，阐明了吸附水对恶臭气体脱附的影响。研究了不同水洗条件、洗涤剂种类、pH值、温度和洗涤时间对农用工作服中农药的去除效果。在棉花和尼龙的情况下，解吸农药是有效的。相比之下，涤纶的去污率只有60%。在洗涤涤纶时，有机溶剂，特别是乙酸乙酯等酯类溶剂的脱附率较高。较少

To reduce the load of the environment, we have investigated the farm working clothes. Especialy, the reduction of ultraviolet (UV) rays exposure, bad smell, and poisoning by pesticide on farmer in agricultural work, has been studied. The results obtained are summarized as follows :1. Transmission of UV rays through clothesWe have investigated the factors which influence on the UV rays transmission through clothes. Sinces the effect of fiber materials, dyeing and fiber-proofing has been already reported. We have concerned on the influence of the density of clothes and the twist of yarns. We have found that the higher density of clothes and the lower twist of yarns make the UV transmittance became lawer. Furthermore, we have also performed additional experiments to elcidate the effect of piling up two clothes. As a result, when the sample-1 has a higher UV transmission than the sample-2, sample-1/sample-2 (here, sample-1 and sample-2 exist on the incident beam side and the other side, re … More spectively) showed lower total UV transmission than the case of the sample-2/sample-1.2. The sorption and desorption of the bad-smelling gas for farm working clothes.The amounts of the bad-smelling gas absorbed in fibers have increased with increasing the moisture content. We have found the correlation between the amounts of sorption and the solubility parameter of fibers. We have investigated the desorption behavior of the bad-smelling gas by the infrared spectroscopy and have clarified the effect of the absorbed water on the desorption of bad-smelling gas.3. The elimination of the absorbed pesticide in farm working clothes.We have investigated the removal of the pesticide from farm working clothes under various washing conditions in water, type of detergent, degree of pH, temperature and washing time. In the case of cotton and nylon, the desorption of pesticide was effective. As for polyester, in contrast, the detergency was only 60%. For washing polyester, it was also found that desorption was high when organic solvent, especialy the ester solvent such as ethyl acetate, was used. Less