Cohesion is the manifestation of fiber crimping characteristics. Fiber cohesion is an important product quality indicator for products with cut lengths. When the user performs carding operations, the fibers form a fine web, which is then gathered by the cohesion between the fibers. At the same time, this kind of operation is very sensitive to the fiber cohesive force. If the cohesive force is low, the fiber web will sag or break, and the spinnability will decrease. For the tow, the low cohesion force causes the width of the tow to increase, which is not conducive to the processing of the thread. The unique canine-like structure of dry-spun acrylic fiber makes the cohesive force an important indicator that affects the spinnability of the fiber.
According to experiments, if the ring yarn strength is 1, then the strength of other types of yarns are: rotor yarn 0.8-0.9, air-jet yarn 0.6-0.7, vortex yarn 0.8, and tight spinning strength 1.15. Cashmere yarn is divided into: woollen yarn, worsted yarn and semi-worsted yarn according to the production process. Woollen yarn is relatively thick and its count is relatively low, generally from 14 to 32. Semi-worsted yarns are relatively thin and have relatively high counts, generally from 48 to 100 yarns. The hand feel is softer and softer than worsted yarns. Worsted yarns are relatively thin, with relatively high counts, generally from 48 to 150
We often use cashmere knitting yarn for hand-made needles, which belongs to woollen yarn. Ordinary cashmere sweaters also use woollen yarn. For spring and summer ultra-thin cashmere fashions, worsted cashmere yarn is generally used for T-shirts and cashmere underwear.
