Polyester yarn

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Spinning mechanism and five advantages of compact spinning

Compact spinning is a new technology of spinning on the improved ring spinning frame. The spinning mechanism is mainly as follows: a condensation area is added in front of the traction device of the ring spinning frame, which basically eliminates the spinning twisting triangle area between the front roller and the twisting point, and the following five advantages of the spinning technology compact spinning.

Five advantages of compact spinning

1. Before twisting, the single fiber in the yarn is fully extended, parallel to each other and closely arranged. Therefore, at the mouth of the twisting roller (also known as the anti twisting roller, because it has the effect of preventing the twist transmission), the diameter of the yarn is very small, so the "twisting triangle area" is basically eliminated. Before twisting, the single fiber is fully extended, parallel and there is no hairiness protruding from the main body of the yarn, so the Yarn hairiness is very few, especially over 3 mm.

2. In spinning, the strength of compact spinning is higher than that of traditional single yarn, because each single fiber is twisted in a straight and parallel state, and when the single yarn is under tension, the force of each single fiber is basically the same. Moreover, because the single fibers in the compact yarn are closely arranged and have large cohesive force with each other, it also helps to improve the strength.

3. In the compact spinning process, the yarn is gathered after the drafting specified in the process is completed, so the evenness index of the yarn has not been greatly improved, but there is a finishing effect on the yarn in the gathering area, and the inner and outer layer transfer of the fiber is not strong in the twisting of the roller jaw, so the evenness, coarseness and detail index of the compact yarn are higher than that of the traditional yarn OK.

4. Because of the above characteristics of compact yarn, it provides a very good condition for the next process. Compact yarn has less hairiness, so it reduces the pressure of sizing, singeing and other processes. When tight yarn is used in weft of shuttleless loom, it greatly reduces the resistance of weft insertion and improves the loom efficiency.

5. Due to the close arrangement of the compact yarn fibers and the small diameter compared with the traditional yarn of the same number, the cloth woven with the same warp and weft density has good air permeability, flat and smooth cloth surface, and is an ideal high-grade yarn.