1996 Volume 58 Issue 3 Pages 27-35
In this study, the reduction of UV exposure for farmer in agricultural work, is aimed. For the purpose, UV transmission was measured for various fibers dyed in different colors. The results obtained are as follows. 1) The UV transmission through fabrics greatly depended on type of fibers. The UV transmission for polyester was low and that for cotton which is often used as farm's working clothes in summer was high. 2) Dyeing of fabrics reduced their UV transmisson. Thus, selection of fibers and coloring were found to be very effective to reduce the UV exposure. 3) It was found that the UV transmittance for fabrics follows the Kubelka's theory, hence the absorption efficiency (α) and the scattering efficiency (S) can be determined for various fabrics. By these results the characteristic of UV transmission for various fabrics were understood. 4) The range of α and S to hold UV exposure of less than 1 MED (Minimal Erythema Dose), were determined. The results were very helpful not only for the poduction of farm working clothes, but also for the choice in wearing proper clothes depending on weather condition.
