Comparing the Hairiness of Solospun and Ring Spun Worsted Yarns

Abstract

This paper compares the hairiness of Solospun yarns with conventional ring spun worsted yams of the same specifications. A 24-spindles worsted ring spinning frame is used to spin the Solospun and conventional ring spun yarns at the same time, and yarn hairiness is measured. The total hairiness number ( Tp), the number of hairs longer than or equal to 3mm ( S3), the percentage of longer hairs in total hairs (100 S3/ Tp), and the total hair length per unit yarn length (K' ) are used to compare the hairiness of these yams. The results indicate that the Solospun yarn exhibits less hairiness in each of the hair length groups and has lower variations in yarn hairiness. The hair-length distribution of the Solospun yarn follows an exponential law just like conventional ring spun yams. There is a statistically significant difference between the Solospun and conventional ring spun yams for T p, S3, and K', but the difference in 1 00 S3 /Tp is not statistically significant for these yams. In addition, the Tp, S3, and K' values of the Solospun yarn decrease with twist increase and increase with spindle speed increase, but the 100 S3/T p values of the Solospun and conventional ring spun yarns in this study behave differently in that they are affected by twist level and spindle speed.

A Controlled Experiment on Yarn Hairiness and Fabric Pilling

“…According to Prins et al [7], the slotted roller used for Solospun confers greater fiber security within the yarn formation zone, resulting in fewer protruding fiber ends per unit length. A comparison of the hairiness of Solospun TM and ring spun yarns by Chang and Wang [8] showed that Solospun TM yarns have fewer hairs in various hair length groups and a lower coefficient of variation of hairiness. Similarly, Cheng et al [9] reported reduced yarn hairiness of Solospun TM yarns over ring spun, especially in the instance of long hairs.…”

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

“…The geometry of this spinning triangle has been proven to be decisive in influencing several yarn properties, including yarn hairiness. Further development of ring spinning was designed to decrease the spinning triangle by using other new systems such as the solo spun system [7], compact or condensed spinning system [8], and the jet ring spinning system [9][10][11][12][13] to overcome this inherent problem of conventional ring spinning.…”

Effects of Solospun Roller on Properties of Cotton/Polyester Solo-Sirofil Composite Yarn

“…The Solospun systems could control the fiber migration behavior with grooved solospun rollers mounted under the front bottom roller, as indicated in Figure 1. But, the strength and evenness of the solospun yarn is reduced [13][14][15]. By adding a filament to the spinning process, the strength and the characteristics of the yarn, which is called Solo-Sirofil composite yarn, can be greatly improved [16].…”