Abstract
The electromagnetic (EM) protection factor is defined as a ratio of EM field intensity measured without the shielding material and field intensity with the shielding material placed between EM radiation source and receiver. This research is focused on SE durability of a composite cloth structure, where the functional interlining polyamide fabric coated with copper IF was integrated, after exposure to heat and moisture in steam-setting, ironing and double compressing. The cloth composite structure was also exposed to solvent in dry cleaning. It was proved that a synergy of thermal and mechanical actions in ironing and pressing caused a drop of SE in the frequency range from 0.9 to 2.4 GHz. Increased number of dry cleaning cycles resulted in further reduction of protective properties. Cross section and chemical analysis of IF before and after 10 dry cleaning cycles are not harmonized with low durability of SE properties in dry cleaning.
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