How To Improve The Adaptability Of Siro Spinning

　　 Sirospun Two roving yarns which are kept at a certain distance are fed on the ring spinning frame. The two single yarn strands are drawn by the front roller after drafting. Due to the transmission of the twist, the single yarn still has a little twist on the single yarn. The two single yarns are combined to be twisted into similar strands and are rolled on the bobbin. Netizens tsunami

I think siro spinning has certain " Skin core Structure. In the spinning process of siro spinning, the stranded strands are intertwining and twisting with each other. Special spinning forms create special yarn inner structures, thus changing some physical properties of yarns.

For example, Siro spun yarn has a very clean surface and very few hairiness. Because the two parts are joined, the twisting of the post must play a role of merging. Therefore, under the same conditions, the evenness of the bar is much better than that of the traditional spinning, and the quality indexes such as coarse and fine knot and NEP are all better than those of the traditional ring spinning. Because of its "skin core" structure, the use of Siro spun yarn can improve the wear-resistance of the fabric. Internet users can expand the scope of siro spinning anonymously.

The initial design purpose of siro spinning is to Wool spinning It is characterized by less hairiness, high strength and good abrasion resistance. It can make wool spinning yarn achieve the effect of single yarn weaving, so as to realize the frivolity of wool fabric.

The products produced by siro spun yarn can produce the "twist" effect after dyeing. The fabric feels good and is welcomed by many customers. In recent years, the siro spinning can improve the Mao Yu problem of yarns. Enterprises are also starting to use siro spinning to produce some fibers which are easy to produce Mao Yu, such as artificial cotton, modal, Tencel, soybean fiber and so on. The raw materials of Siro yarns are lower than those of conventional ring spinning, and the hairiness of the fabrics is less than that of conventional ring yarns, and the handle is soft, wear-resistant and breathable. Netizens tsunami

Compared with combed cotton, it is more difficult to produce siro spinning in the new fiber field. First of all, the treatment of roller is a difficult point. Because there is no guide yarn movement, soft elastic cots are easy to slot, and the use of hard roller yarns is a problem.

The choice of the center distance between the second, second speakers is also very difficult. The center distance is too large, the yarn hairiness is better, but the single yarn is easy to appear, the edge fiber is not easy to be twisted, and the yarn index is poor. On the blackboard surface, we can see a lot of small bamboo knot defects due to the falling edge fibers being twisted into the yarn. The center distance is smaller, the above problems can be solved, but the biggest problem is that its hairiness and the common ring spinning contrast have no advantage.

Third, because of the rigidity of the new fiber yarns and the fast wear of the travellers, and the general acidity of these new fibers, if the ordinary collar is used, the runway of the steel collar will decline more obviously. In addition, the choice of the weight of the traveller is also a difficult point. Too much weight of the traveller will increase the broken ends of the yarn, the ring traveler is too light, and the air ring is very large, so it is necessary to choose the suitable weight with the wire ring shape and cross section.

Fourth, the choice of roving quantitative is also a problem. The roving size is too large, the width of the bar must be too big at the mouth of the roller, and the edge fiber is not easy to be twisted. When drafting, the initial pulling force of the new fiber is larger than before. Therefore, the size of roving twist coefficient must be matched with the drafting size of spinning. Otherwise, the phenomenon of back rollers and spinning hard head will often happen. Netizen lsmumu chooses process parameters reasonably.

Judging from the current technology, I think siro spinning process has three main disadvantages. First of all, siro spinning is carried out on the traditional spinning frame. After the modification, the frame of the frame is very tight, so it is very inconvenient for the truck driver to change the roving when it is blocking the car. If a little attention is not paid, the adjacent roving will be broken, and the doffing workers can easily hang up the roving when doing the cleaning.

Secondly, the single strand roving breakage does not guarantee that the Siro spun yarn must follow the breakage. If there is no breakage, the truck will not be discovered in time, resulting in quality accidents or waste of yarn. Finally, because siro spinning uses double bell mouth, the yarn's transverse movement adjustment amount is small, will directly affect the service life of cots and aprons. Anonymous netizens

Our factory has been producing combed cotton 40 and 50 Siro spun yarn since 2008. Taking 40 Siro spun yarn as an example, the yarn sliver CV is less than 11.8%, the kilometer detail number is 1, the kilometer thick section number is 18, the NEP number is 46, and the broken spindle is 25 when 1000 spindles.

The spinning front roller speed is 190 revolutions / minute, the roving single is 4.2 grams /10 meters, the roving twist coefficient is 131, the distance between the front and middle roller is 17.5 mm, the front and rear roller spacing is 76.5 mm, the bell mouth is 0.8 mm, the draft area is 1.33, the front area collector is 3.8 mm, the front roller is 3.5 mm, the front and back roller is 3.5 mm, the diameter of the front and back roller is 1 millimeters. The temperature of the spinning workshop is 29 degrees Celsius to 35 degrees Celsius, and the relative humidity is 55% to 60%.

The above data were obtained after more than 200 experiments. Mistakes are unavoidable in production. Only by careful study of every process can product quality be continuously improved in production.