Impact of Yarn Construction Containing Elastane on Fabric Relaxation Properties

Abstract

In textile materials subjected to the impact of tensile force deformations appear in the form of increasing the length in the direction of force impact. After the relaxation because of typical viscoelastic qualities one part of the deformation disappears immediately (elastic deformation), the other part disappears with time (elastic deformation retained) and the remaining part stays behind as a durable and irreversible deformation. The influence of the yarn construction containing elastane on the viscoelastic behavior of the fabrics and their relaxation qualities is considered. The influence of the covered yarn with elastane core on relaxation properties in fabrics as response on tensile strength has also been considered. The investigation results show an important influence of the elastane yarn construction on relaxation phenomena in fabrics.