Several Common Ways Of Yarn Spinning

Vortex spinning

Vortex spinning has similar properties to ordinary ring yarn, but the extraction speed is 20 times higher than that of ordinary ring spinning, and 3 times that of rotor spinning. The quality of vortex yarn is not as good as that of ordinary ring yarn, but when the production is increased at higher speed, the quality of vortex yarn is close to that of ordinary ring yarn.

MVS vortex spinning machine uses two rotating nozzles to generate helical gas, which is used to push the fed sliver around the fixed spindle to generate twist and form yarn. One end of the loose fibers is twisted around the overlapping fibers to form a true twist. Vortex yarn is similar to ordinary ring yarn. The yarn is divided into two parts, namely the inner core and the outer layer of the yarn. The outer layer is wrapped with fibers. The fibers surround the inner yarn core to form a wrapped yarn, which makes the yarn very strong.

The vortex spinning system is fully automatic, eliminating all the twisting elements of the rotary machinery, which is the biggest advantage of the vortex spinning machine, which can reduce many machine maintenance costs, directly feed the sliver produced by the drawing frame, and cancel the roving process. However, there is a big problem in vortex spinning, which will cause waste of raw materials in the spinning process. Fiber loss is about 5 percent . Although most of the lost fibers are short fibers, it will not affect the improvement of yarn quality.

Vortex spinning and rotor spinning have formed a competitive situation in the market, especially the cotton spinning system produces medium-count carded yarn. Vortex spinning has a high output and is suitable for producing fine-count yarn with high strength, and the production cost can be reduced by half. It can be used in the combed wool spinning industry in the future.

Solo Spinning

Unlike Solospun, which can be directly used for weaving without sizing, Solospun is another improvement of ring spinning technology. In addition to Solospun technology, the surface of the lower roller has many The grooves are installed on the spinning frame, and the fiber bundles are output to several thin wire grooves from the front. The fiber ropes passing through these grooves are combined on one yarn, and the synthetic yarn is combined by a plurality of single yarns. Compared with Sero spinning, Sero spinning has only two grooves. The advantages of Solo spinning are high yarn strength, good friction resistance and less hairiness.

Soro spinning can also be processed on the warp knitting machine instead of double strands. The Soro spinning mechanism is relatively simple, and it is easy to install and remove. One installer can install 1,000 spindles of Soro spinning devices within three hours. The machine has many functions and strong adaptability. The Soro spinning mechanism can be removed, the machine continues to run within one minute, and the Soro spinning production cost is also low. The rollers can be replaced every 6 months. Only the rollers of the whole machine need to be replaced, and no any tool.

Soro spinning has great economic advantages in wool spinning, such as a wide range of processing wool fibers; high output and spinning efficiency; cancel the twisting system and carry out combined processing; improve winding output and efficiency; can be used as much as possible Coarse wool fibre; short production times compared to twin-strand production.

Soro Spinning produces fine count yarns for weaving lightweight fabrics, Soro Spinning yarns can be used to produce higher quality wool garments and a wider range of wool products.

compact spinning

The technology of compact spinning ring spinning frame at home and abroad is basically divided into two categories: one is the Swiss Rieter com4 model, which uses the turret with holes instead of the front roller to achieve the cohesion of the fibers; The other type is that the Suessen company uses the special-shaped negative pressure suction pipe and the perforated leather roll to form a cohesion effect on the fibers. It's Suessen. The principle of the two kinds of cohesive compact spinning is the same, but the form is different, and each has its own advantages and disadvantages. In the worsted wool spinning industry, the compact ring spinning frame can process and produce wool combed compact yarn and blended yarn with chemical fibers. Compared with ordinary worsted wool spinning ring yarn, the output is increased by 10-30 percent .

Compact ring spinning has better yarn properties and structure, less yarn hairiness, high fiber yield, high yarn strength, yarn surface gloss, smoothness, evenness, and twist adjustment can increase yield and improve yarn Softness, compact yarn and fabric appearance are greatly improved. When weaving with compact ring yarn on the air-jet loom, the weft insertion speed is increased, and the stop rate is reduced by 50 percent . The fabric is woven by the compact ring yarn, which has a clear and shiny appearance, firm hand, less hairiness, and 50 percent reduction in size. percent , and more importantly, the harmful hairiness of 3 mm and above is eliminated, and singeing can also be eliminated. Compared with ordinary ring-spun yarn, the end breakage of compact-spun ring-spun worsted wool is reduced by 50 percent , and the yarn strength and weak ring per kilometer can be reduced. 20 percent reduction, the average end breakage rate is between 4-60 percent , and the elongation of compact-spun ring-spun combed wool yarn is 20 percent better than that of ordinary ring-spun yarn. Due to the good structure of compact spun yarns, the number of fibers in the yarn cross-section is reduced by 10 percent . Therefore, coarse and low-priced wool fibers can be used to produce fine wool yarns. Reduce the raw material cost of combed wool yarn by 6-9 yuan per kilogram.

Although there are many advantages of compact-spun ring-spun combed wool yarn, there are also some problems that need to be further solved. For example, for compact ring spinning machines, the price of the machine is too expensive, and the investment cost per spindle increases by about 50 percent . Even if Suessen refits FA506, FA507 and woolen ring spinning machines in my country, the refit cost per spindle must reach More than RMB1500; the maintenance of the negative pressure suction hole system is large; the negative pressure suction hole of Rieter com4 suction tumbler or Suessen apron is easy to be blocked; the service life of the ring and traveler is longer than that of ordinary ring spun yarn Machine ring traveler is short; tight ring spinning frame spinning piecing problem also needs to be improved to improve the appearance of the cloth surface.