Stress Relaxation of Clothing Fabrics and Their Systems
Keywords:clothing fabrics, interlining, fused systems, stress relaxation.
component and fussible interlining) are presented in the article. The tested specimens were quite different in physical
characteristics, area density, weave, etc. Fussed systems are composed via fussing the main component with fussible
interlining using the recommended regimes for these interlinings. The uniaxal tensile tests enabled to find that after the
deformation of 15 % was reached (while testing the relaxation was stretched by 10, 15 and 20 %) the more significant
stress part is being taken by fussible interlining, and its behaviour mostly influences the system‘s instantaneous elasticity
as well as max stress value during the relaxation testing. While stretching the fussed systems till the breaking, at the first
the less elastic fussible interlining is breaking, nevertheless its breaking point is approaching towards bigger extensions
because of the fussible relations emerging during the fussing process. There was found the system stress relaxation is
going in the same way as its components’ relaxation: the most intensive stress change is having place at the beginning of
the relaxation time the first 5 s – 20 s. After the deformation has been increased from 10 to 20 %, stress values Fmax of a
system and its components after the extension are going up, and the index of stress relaxation is changing depending on
components‘ structure and physical characteristics.
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