Experimental Investigation on the Effect of Singeing on Cotton Yarn Properties

Abstract

In this study, combed ring spun and compact spun cotton yarns with different counts were selected from different textile mills to conduct singeing treatment. Yarn properties including hairiness, fineness, unevenness and tensile properties were tested after the treatment and the results were compared with those before treatment. Hairiness was greatly removed after singeing, especially for short hairs with length less than 3 mm. Compact ring spun cotton yarns showed higher tex values and lower weight loss than combed ring spun cotton yarns under the same counts. Coefficient of variation of yarns increased slightly after singeing treatment. The unevenness of yarn was divided into two parts: basic unevenness of yarn body and hairiness unevenness, to explain the worse yarn evenness after singeing treatment. In this way, the effect of singeing on yarn properties was investigated thoroughly so as to improve yarn quality with less hairiness and good evenness.

Effect of yarn singeing and commingling on the mechanical properties of jute/polypropylene composites

“…However, there are some papers mentioning the singeing technique for cotton yarn. The hairiness of the cotton yarn has been reduced more than 80% by the singeing process as reported by Zhigang Xia et al [ 24 ]…”

“…et al, [ 45 ] which is probably the main reason for sticking of the fibers in jute yarn. On the other hand, there is no effect of singeing on the tensile properties of the cotton yarn as studied by Zhigang Xia et al [ 24 ] In fact the strength of cotton yarn decreases after singeing by 1.4%. No increase in the tensile strength is mainly due to the very low amount of lignin in cotton fibers.…”

Comparative study of fiber trapping by filaments in conventional and diagonal sirofil systems

“…The hairiness of a given kind of yarn decreases slightly with the yarn count attenuation. 22 According to geometrical analysis, the sirofil systems of Figures 2(a) and (f) endure severe fiber loss due to their similar low capacities of trapping staple fibers; therefore, spun yarns should embrace decreased staple fiber numbers to create hairs for the sirofil systems of Figures 2(a) and (f). Theoretical analysis indicates that low-tensioned filaments are apt to wrap onto the high-tensioned staple strand, consequently nesting the staple strand hairs into the resultant yarn (Figures 4(a) and (f)).…”

Study on the Change in Characteristics of Ring Yarn during Post Spinning and Yarn Dyeing Operations

“…However, the conventional ring spinning system has several limitations, one of which is the poor integration of fibres that protrude from the yarn surface, causing yarn hairiness [1]. Hairiness is an undesirable property of yarn, and it has always been a matter of concern to improve yarn quality [2]. Hairiness with a shorter length of fibre is preferred in knitted fabrics for softer feel of the fabric.…”

“…It is believed that the removal of hairy fibres by the singeing process after cone winding may definitely reduce the chances of the creation of yarn faults. Singeing is applied on yarn and fabric to remove hairiness on their surface [2,16,17]. Longer hairs might be easily affected by the flame, removing a large amount of hairiness from the yarn, which may affect its different properties, such as ap-makes possible the obtainment of significant productive effects and lowering of the costs of producing yarn without an excessive worsening of quality.…”