Compact spinning is a new spinning technology for spinn […]
Compact spinning is a new spinning technology for spinning on an improved new ring spinning frame. The spinning mechanism is mainly: a condensing zone is added before the traction device of the ring spinning frame, which basically eliminates the spinning and twisting triangle between the front roller and the twisting point. The following textile technology-the five advantages of compact spinning .
Five advantages of compact spinning
1. Before twisting, the single fibers in the yarn are fully straightened, parallel to each other, and arranged tightly, so at the nip of the twisting roller (also called the twist-stop roller, because it has the effect of preventing the transmission of twist), the diameter of the yarn is It becomes very small, so the "twisting triangle" is basically eliminated. Because the single fiber is fully straight and parallel before twisting, and there is no hairiness extending from the main body of the yarn, the yarn has very little hairiness, especially if the hairiness is more than 3 mm. less.
2. In the spun yarn, each single fiber is twisted in a straight and parallel state. When the single yarn is tensioned, the force of each single fiber is basically the same, so the compact spinning strength is higher than that of the traditional single yarn. Moreover, because the single fibers in the compact yarn are closely arranged, the cohesive force between each other is large, which also contributes to the improvement of the strength.
3. In the compact spinning process, the yarn sliver is assembled after the drafting specified by the process is completed, so the index of unevenness is not greatly improved, but it has a finishing effect on the yarn in the gathering area, and it is When twisting at the nip of the twisting roller, the transfer of fibers between the inner and outer layers is not as strong as the traditional technology, so the tight yarn has uneven, thick and detailed indicators than traditional yarns.
4. Due to the above characteristics of compact yarn, it provides very good conditions for the next process. The compact yarn has less hairiness, so the pressure of sizing, singeing and other processes is reduced. When the compact yarn is used in the weft of the shuttleless loom, the drawdown is greatly reduced. The resistance of the weft improves the efficiency of the loom.
5. Because the compact yarn fibers are closely arranged and have a smaller diameter than traditional yarns of the same number, the cloth densely woven with the same warp and weft has good air permeability, and the cloth surface is flat and smooth. It is an ideal high-end yarn.