Abstract:

In order to research a novel complete condensing siro-spinning yarn, a new complete condensing siro-spinning yarn which adopted a 5.0g /10m combed cotton roving and a 3.4g/10m polyester roving are blended together in spinning process, four kinds of cotton/polyester (60/40) blended yarns were produced, and comparison is performed on single cotton yarn quality and cotton/polyester (60/40) blended yarn spun by ring spinning feeding in single blended roving; and the eight kinds of blended yarn samples were cut by a Harrington slicer. The MOTTC B1 microscope was adoted to observe distribution conditions of the fiber, and combined with the Hamiltion migration index method to acquire distribution reles of fibers and the internal and external migration trends. The results show that the CV value and single yarn breaking strength of novel complete conednsing siro-spinning blended yarn is superior to the conventional ring spinning blended yarn, and less bairiness; and from dingle yarn cross section diagram, it can be concluded that the polyester fibers in the novel siro-spinning blended yarn are transferred to the yarn core and presents the trend of cotton cated polyester, but conventional blended yarn gas more random distribution of polyester fibers. 

Key words: complete condensing spinning, siro-spinning, blended yarn, Hamiltion index