Is AB yarn composite yarn or blended yarn? AB yarn is a composite yarn made by the siro spinning technique. In siro spinning, two whiskers with a certain distance are fed into the spun yarn drafting area, and then twisted into yarn after drafting respectively. To put it simply, two rovings are spun into a spun yarn. Such a yarn has the nature of a strand and has less hairiness. It was originally used in wool spinning, and now there are many cotton spinning.
Structural characteristics of AB yarn: the synchronous twisting of siro spinning makes the yarn have a special structure, the fibers on the surface of siro spinning are neatly arranged, the yarn structure is tight, the hairiness is less, and the pilling resistance is good. Compared with stranded fabrics, siro fabrics are softer and smoother to the touch. Siro spinning can be used in woven and knitted fabrics, and can also be used in high-count and high-density fabrics instead of strands.