IN-PLANE SHEAR PROPERTIES OF RIBS FABRIC BY YARN PULL-OUT

Year 2012, Volume: 22 Issue: 4, 301 - 308, 31.12.2012

Kadir Bilişik

Abstract

The aim of this study was to determine the in-plane shear properties of polyester ribs fabric by the pull-out method and analytical

relations were developed to calculate the shearing properties. After the yarn in the fabric was pulled from the top ravel region before the

start of the crimp extension stage, it was found that fabric shear strength and rigidity increased when the number of pulled ends

increased. When the fabric dimensions increased, fabric shear strength and rigidity also increased. The shear strength and rigidity values

in untreated fabric were high compared to that of treated fabric due to the softening treatments. It was observed that fabric sample

dimensions and the number of pull-out ends as well as the fabric treatments influenced fabric shear strength and rigidity. In addition, the

shear jamming angles were found to be based on the number of pulled ends. Fabric local shearing properties could be identified by

pulling the yarn ends in various regions of the fabric. This could be important for the handling of the fabric during formation. The

results generated from the study showed that polyester fabric shear could be measured by the yarn pull-out test.

Keywords

Fabric shear, Single and multiple yarn pull-outs, Shear rigidity, Fabric sample sizes

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