Effect of Yarn Folding on Comfort Properties of Hemp Knitted Fabrics

Abstract

The operation of folding provides a complex yarn differing to an appreciable degree from single components. Although the characteristics of folded yarns have been the subject of many investigations, there is a serious lack of study concerned with the influence of yarn folding on comfort properties of clothing materials. Therefore, this study focused on the effect of yarn folding on both thermal and tactile comfort of plain knitted fabrics. In addition to the structural characteristics of the yarns and knitted fabrics, the transport properties, deformation behavior and surface properties of the knitted fabrics were investigated. The results obtained indicated that the influence of yarn folding on thermal and tactile comfort properties of clothing materials is mainly positive. These effects were caused by the modification of yarn packing density which further influenced the air volume distribution as well as the fiber and yarn mobility within the fabric.

Simulation of Temperature Distribution Within Weft-Knitted Fabrics in Extended State

“…Mass per unit area and thickness of the samples were tested according to ASTM D3776-96: Standard Test Method for Mass per Unit Area (Weight) of Fabric (Annual Book of ASTM Standards, 2002) and ASTM D1777-96: Standard Test Method for Thickness of Textile Materials (Annual Book of ASTM Standards, 2007), respectively. Air permeability was tested according to ASTM D737-96: Standard Test Method for Air Permeability of Textile Fabrics (Annual Book of ASTM Standards, 2004), and fabric porosity was calculated using the following equation (Stankovic & Bizjak, 2014):…”

Influence of yarn folding on UV protection properties of hemp knitted fabrics

“…Time 2Cs i KCs pletenina stiču oznaku 40+, i svrstavaju se u kategoriju materijala sa odličnim UV zaštitnim svojstvima. Ova činjenica potvrđuje potencijal koji operacija končanja pređe ima u pogledu UV zaštitnih svojstava, posebno ako se ima u vidu pozitivan efekat končanja na komfor tekstilnih materijala od konoplje [36].…”

Liquid transfer properties of textile fabrics as a function of moisture content

“…This is similar to the plating technique, but unlike the plated structure, in our knitted fabrics two different yarns are randomly arranged on the face or back of the knit. For the hydrophilic component, the hemp yarn was chosen as a more eco-friendly alternative to cotton with very good predispositions for production of comfortable, high-added value products [19][20][21][22][23]. Hemp has been a source of fibre for technical and clothing textiles for centuries, however, due to the large-scale cultivation of cotton and the advent of synthetic fibres the hemp cultivation declined.…”