Structure Property Relationships in Thermally Bonded Nonwoven Fabrics

Abstract

The relationship between fiber dimensions, morphology, tensile properties of base fibers, and the mechanical behavior of thermally bonded carded poly(ethyl-enterepthalate) fiber webs is reported. The processing conditions used included PET binder fiber concentrations of 10%, 20%, and 30%, and bonding temperatures of 97°C, 107°C, and 121°C. In addition to fiber linear density, the tenacity and crystallinity of base fibers are important factors in determining the physical properties of fabrics. The binder concentration and bonding temperature significantly affect the dimensional and tensile properties of fabrics.