Radiant protective and transport properties of fabrics used by wildland firefighters

The radiant protective performance, thermal resistance, air permeability, and moisture evaporation of a series of fabrics made from aramid, modacrylic, polyimide, and fire resistant cotton fibers are evaluated in the laboratory. The radiant protective performance of single-layer fabrics is affected by the structure, weight, thickness, and materials, consistent with the thermal protective performance of fabrics previously discussed. A fabric's transport properties, which are closely associated with comfort performance, can be reflected by a combination of its air permeability, thermal resistance, and moisture evaporation, which are also governed by the same structural factors. Thus, it is our intention to explore the relationship between fabric structures and both radiant protective and transport properties so that we can provide the necessary information for selecting appropriate fabrics for firefighter's uniforms.