Two New Techniques for Determining the Thermal Radiative Properties of Thin Fabrics

Abstract

Two new techniques for determining the emissivity, reflectivity and transmissivity of fabrics in the infra-red region of the spectrum are described and experimental results reported. Results obtained by both techniques compared favourably. The thermal radiative properties of many textile fabrics were found to be somewhat dif ferent from values reported in the literature. General, qualitative relationships be tween the thermal radiative properties and physical properties of textile fabrics are discussed.