Stretch properties of elastic knitted fabric with pillar stitch

Abstract

Knitted fabrics and products are subjected to a variety of stresses and loads/deformation during their usage. The loads are different by value, by direction, and by duration. The alternations of loading and unloading or resting processes affect the knitted structure and could bring about changes in the linear dimensions of the fabric or result in the deformation of the knitted items and ultimately the loss of product appearance or its functional properties. A wide range of textile materials resistant to multiply loads was produced by using elastomeric yarn that has an elongation of more than 95% and is able to attain full recovery after relaxation due to its chemical composition. This case study examines two existing test methods for evaluating the stretch properties of textile materials produced with the elastomeric yarns with emphasis on warp knitted abdominal binder-type fabrics. It was found that the linear density of the weft in-laying threads and the preliminary tension of the ground yarn which formed pillar stitch affect stretch properties of elastic warp knitted fabric: the full deformation and its constituent parts. The change in the preliminary elongation of the bare spandex in the 210%-270% range does not have a significant effect.

Changes in characteristics of silver conductive fabrics owing to perspiration and washing

“…Owing to their structural characteristics, knitted fabrics have excellent stretchability. 27 Spandex, contrastingly, is elastic because the so segment is deformed by an external force owing to its polymer structure composed of so and hard segments. 28,29 Therefore, the linear resistance increased as the silver layer on the surface was partially damaged, as the ber, and not the fabric structure, was stretched during elongation in the course direction.…”

Behavior of Polymer Materials Exposed to Aging in the Swimming Pool: Focus on Properties That Assure Comfort and Durability

“…Materials made using knitting technology are known to have improved comfort properties, especially when elastane yarns are also used for plating. The previously published researches showed that the content of elastane in the material structure has a significant influence on the elastic properties (primary elastic recovery) of the materials [ 25 , 26 ]. The results of the measured breaking elongation of the investigated materials confirmed this evidence.…”

Development of interlock knitted seersucker fabric for better comfort properties

“…Whereas elastic warp knitted fabrics have stretch % up to 165%. 6 It was concluded that stretch in cotton covered elastane specimens back side was higher to specimens with spun polyester and cotton on back side. The core spun yarn having elastane adds the considerable stretching property in seersucker fabric as compared to others.…”

“…5 Olena Kyzymchuk and Liudmyla Melnyk suggest that linear density of inlay yarn and its tension are the main parameters to engineer the elastic properties of knitted fabric. 6 Surface evenness in knitted fabric can be created by use of a bi-component helical twisted yarn which is visible in greige fabric. 7 Different yarn and fabric parameters are engineered to optimize the comfort and other required properties of knitted and of woven fabrics by different researchers.…”