Sirospun Yarns Research Articles

Air-Jet Texturing of Sirospun Yarn

Sirospun yarns have been texturized using an air-jet process to improve the bulk of the parent yarn. The study examines the effects of twist in the parent yarn, as well as overfeed and air pressure during texturing on the properties of the textured yarn. When suitable process parameters are chosen, Sirospun yarns lend themselves to excellent texturing with desirable properties.

Quality Improvement of Sirospun Yarns Through Use of Finer Rovings

Optimization of Sirospun yam quality is an ongoing process. The compactness of the yam appears to be an important factor. In this paper, we show that for a given yam count, a lower draft produces a stronger and more even yarn.

Frictional Properties of Siro Spun Yarns

This paper reports the frictional properties of a series of siro spun yarns produced from cotton, polyester/cotton, and viscose. The coefficient of friction of the yarns has been measured using Howell's method where the two yams slide against each other at right angles. Yarn-to-metal friction has also been measured using a modified version of Howell and Mazur. The dependence of strand spacing and twist on the coefficients of yarn-to-yarn and yarn-to-metal friction has been examined, and the frictional coef ficient increases with increasing strand spacing and twist. The probable reasons for this behavior are discussed in terms of the nature of the yarn surfaces.

Communications to the Editor: Wicking in Siro Spun Yarns

Communications to the Editor: Wicking in Siro Spun Yarns