Measurement of dielectric properties of textile materials and their applications

Dielectric properties of textile materials have been used in process and quality control in relation to the moisture content, unevenness, drying, static generation, etc. Although dielectric properties of fibres and fibrous assemblies have been the subject of study of many researchers for a long time, the understanding of the subject, however, is still incomplete. With the advent of new characterization techniques and development of new textile based products for special applications like composite reinforcement, EMI shielding, etc., the subject requires fresh and further investigation. This paper reviews the state of knowledge regarding the dielectric properties of the fibres and textile materials, the various measurement techniques and some of the major applications of this knowledge in textile industry.