Compact spinning is a new spinning technology for spinning on an improved new ring spinning machine. The compact spun yarn is very tight and the yarn has a smooth appearance and less hairiness. The yarn has a high strength and less hairiness. The phenomenon of sanding is the least likely to occur during the weaving process. The purpose of compact spinning is to make the fibers as parallel and close as possible before twisting the yarn, which is an important criterion for high quality compact spun yarns.
The advantages of compact spinning
1. Since the single fibers before the twisting are sufficiently straight and parallel, no hairiness protrudes from the main body of the sliver, so that the hairiness of the yarn is small, especially the hairiness of 3 mm or more is extremely small.
2. Since the single fibers in the compact yarn are closely arranged and have a large mutual force, this contributes to the strength of the yarn.
3. The tight yarns are uneven, thick and detailed indicators are better than traditional yarns.
4. The compact spinning has less hairiness, so the pressure on the sizing and singeing processes is reduced. When the compact spinning is used in the weft of the shuttleless looms, the resistance of the weft insertion is greatly reduced, and the efficiency of the weaving machine is improved.
5. The compact yarns are arranged neatly and have a small diameter compared with the conventional yarns. Therefore, the cloth woven with the same warp and weft density has good air permeability, and the cloth surface is smooth and smooth, which is an ideal yarn for high-grade textiles.
Shortcomings of compact spinning
1. The high cost of compact spinning equipment has increased the capital investment in spinning mills.
2. In addition to the significant improvement in hairiness indicators above 3 mm, other indicators of yarn such as strips, coarse, fine, and cotton knots have not improved much.
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