AIR PERMEABILITY AND STIFFNESS OF KNITTED FABRICS MADE FROM 100%COTTON AND COTTON/ELASTANE YARNS

  • Dereje Berihun Sitotaw Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, 6000, Bahir Dar, Ethiopia
Keywords: Air permeability, stiffness, Elastan ratio, yarns, knitted fabrics

Abstract

The air permeability and stiffness of single jersey, 1x1rib and interlock knitted fabrics made from 100%cotton and cotton/Lycra yarns (5%Lycra yarn content) investigated in this research. Airpermeability and stiffness of knitted fabrics are important comfort property and determines the applicationsof different structures. The sample fabrics have been conditioned for 24 hours at 20±1oC temperatureand 65±2% relative humidity. Ten specimens for air permeability and five specimens for stiffness were taken from each of the five knitted structures those made from 100%cotton and cotton/Elastane blended yarns. Together with the air permeability and stiffness; the loop length, wales per centimeter, thickness, shrinkage percent and tightness factor are also investigated since they are deciding factors of air transmission through the knitted fabrics and bending rigidity. As reported in this research,the air permeability and stiffness properties of single jersey, 1x1rib and interlock knitted fabricsmade from 100%cotton and cotton/Elastane yarns are significantly different from each other and allof the knitted fabrics made from cotton/Elastane blended yarn have lower air permeability and higher stiffness as compared to the same fabrics made from 100%cotton yarn.
Vol 1, No 2 (2020)
Published
2020-12-07
Issue
Vol. 2 No. 1 (2020)
Section
Articles
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