Effect of Slub Yarn Ratio on Single Jersey Knitted Fabric Properties

Fouda A

doi:10.4172/2165-8064.1000273

Abstract

Slub yarns are widely used in Single Jersey knitted fabrics to improve their appearance. This research aims to study the influence of slub yarn ratio on physical and mechanical properties of Single Jersey knitted fabric. Ten single jersey knitted fabrics were produced using four different ratios of slub yarns at two levels of ground yarn counts. Physical properties of knitted fabric were measured such as fabric density, thickness, shrinkage, spirality, color properties and thermal comfort properties. Also, mechanical properties of knitted fabric were measured including bursting strength and abrasion resistance. Results showed that increasing percentage of slub yarns used up to 50% improved fabric density, spirality and shrinkage after repeated washing, while the weight loss percent due to abrasion decreased. Fabric thermal resistance increased and air permeability decreased; while there were no significant changes observed in other measured properties.

Highlights

Single Jersey knitted fabric spirality is one of the phenomena which could cause goods to be rejected
In addition to the number of knitting machine feeders, yarn twist liveliness which emerges from increasing twist factor is a key factor that affects this phenomena. This phenomena is influenced by fabric tightness, where fabric spirality angle increases by increasing fabric tightness [6]
The usage of slub yarn was spread especially in woven fabric in order to improve its aesthetic appearance with lowest possible cost [2]

Summary

Introduction

Single Jersey knitted fabric spirality is one of the phenomena which could cause goods to be rejected. In addition to the number of knitting machine feeders, yarn twist liveliness which emerges from increasing twist factor is a key factor that affects this phenomena. This phenomena is influenced by fabric tightness, where fabric spirality angle increases by increasing fabric tightness [6]. Slub yarns could be produced by modifying ring spinning frame, such that the intermittent acceleration of the rollers will cause varying degrees of draft to be applied [1]. The usage of slub yarn was spread especially in woven fabric in order to improve its aesthetic appearance with lowest possible cost [2]

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Results

Conclusion