Flame Resistance of Chemical Protective Clothing Materials at Various Washing Intervals

Abstract

The study investigates the fire resistance of chemical protective clothing materials over repeated number of washing cycles. This research work was experimental in nature, performed and completed at a reputable textile mill. The sample of protective coveralls was collected from fertilizer-manufacturing units. These coveralls were evaluated for their fire-resistant ability through the determination of after-flame time and char length by following Vertical Flame Test ASTM D 6413. An experimental fabric was manufactured with various construction parameters to improve the results. Data was presented in the form of mean±S.D along with their minimum and maximum value. The results of experimental and existing clothing materials were compared. The conclusion drawn from this study was that the existing clothing materials failed to meet the international requirements and their condition became even worse with the repeated washing. Whereas, experimental clothing material performed well even with repeated laundering. These findings can be helpful for the manufacturers to review and alter the construction parameters to develop protective coveralls for the safety of workers.