The Advantages Of Rotor Spinning Technology Are Irreplaceable.

< p > although the a href= "http://www.91se91.com/news/index_c.asp" ring spinning /a is still the main body in the market now, after 40 years of development, the yarn length has accounted for 25% of the total spinning weight, accounting for 40% of the total weight.

All kinds of rotor spun yarns have become an important variety in yarn production, and their uses are constantly expanding. Rotor spinning is no longer the byproduct of the cotton mill's subsidiary workshop and the production of low grade yarn.

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< p > < strong > rapid development of technology < /strong > < /p >

< p > after more than 40 years of development, our country's < a href= "http://www.91se91.com/news/" > rotor spun yarn < /a > the number of equipment and rotor yarn production has accounted for 1/3 worldwide.

The rotor spinning products have also been developed from the initial coarse cloth, < a target= "_blank" href= "http://www.91se91.com/" > shoes > /a > cloth and tablecloth to today's denim, corduroy, fine cloth, knitwear and various non cotton products.

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< p > Zhejiang is a large province of rotor spinning in China. By 2011, the province had owned about 400000 kinds of rotor spinning machines, accounting for about 1/8 of the national rotor spinning capacity.

Hongyang group is the leader of Zhejiang's rotor spinning enterprises. According to Dong Guandong, manager of the company's R & D department, the company introduced the RDA spinning machine about two years ago. At that time, the market share of foreign machinery in Zhejiang province was less than 5%. The rotor spinning has brought better economic benefits to the Hongyang group. Other spinning enterprises have followed suit. Now the proportion of rotor spinning in Zhejiang province has reached 95%.

Nationwide, in recent 10 years, due to the new and new equipment matching of rotor spinning specialized factories, the varieties and grades of rotor spinning have been greatly improved.

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< p > < strong > spinning advantage is irreplaceable < /strong > < /p >.

< p > compared with the traditional ring spinning line products, the rotor spinning < a href= '"http://www.91se91.com" > yarn < /a > has two major characteristics: first, the raw materials can be removed by opening the cotton, carding and rotor spinning machine, and the total amount of impurities can be eliminated. Therefore, the yarn containing the yarn containing mixed yarn is less than that of the same number ring ingot.

The two is that the weight and irregularity of the strips can be reduced by means of two parallel strips. Especially during the process of the agglomeration of the rotor, a higher percentage of single fiber can be obtained. Therefore, the yarn irregularity of the rotor yarn is obviously lower than that of the ring yarn.

In addition, compared with the same ring spinning, the breakage of rotor yarn 1000 spindles was reduced by about 66.76%, loom production increased by about 33.3%, the first rate of grey fabric increased by about l0%, and the rotor spun yarn structure was bulky, the absorption rate was high, and the product was bright and colourful.

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< p > Hongyang group Dong Guandong said that the rotor spinning process is shorter and the production capacity is higher. Nowadays, with the increasing labor cost, the automation of < a href= "http://www.91se91.com" > equipment < /a > is undoubtedly a trend and problem solving method.

Rotor spinning is a direct spinning and winding process using cotton sliver, and two processes of roving and winding are omitted.

With the reduction of equipment, the area and energy consumption of the corresponding plant can also be saved, and the production efficiency has been greatly improved.

Taking spinning 19.7tex yarn as an example, spinning speed of ring spinning is generally around 20 m / s. spinning speed of automatic spinning machine can reach 120~150 M / min, and spinning speed of semi-automatic rotor spinning machine can reach 100~120 M / min, which is 5~8 times of ring spinning.

With 360 spinning machines installed in each rotor spinning machine, 5 units (1800 heads) of the automatic rotor spinning machine 4 (1440) or semi-automatic rotor spinning machines can reach 10000 spindles of ring spinning.

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< p > rotor spinning has advantages in terms of employment.

Traditional ring spinning process has many processes, and the efficiency of single machine production is low. Manual operation is more important than that.

Due to shortened process, especially automatic and semi-automatic rotor spinning machines, rotor spinning can simplify manual operation, reduce labor intensity and increase labor productivity. Therefore, employment can be greatly reduced. According to the same output, rotor spinning can save labor at 50% left and right sides than ring spinning. This makes the current a target= "_blank" href= "http://www.91se91.com/" > textile < /a > the contradiction between the employment of many enterprises and the difficulty in recruiting workers can be solved to a certain extent.

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< p > nearly two years, "a href=" http://www.91se91.com "> cotton price < /a" has become an important factor that puzzles the development of cotton spinning enterprises.

Compared with ring spinning, rotor spinning materials are more extensive, which solves the problem of high cost of cotton to a certain extent.

The spinning principle of rotor spinning is free end spinning, from sliver to spinning at spinning time. Therefore, it is strict in fiber ring length without ring spinning. Short staple fibers and all kinds of chemical fibers with different lengths of cotton, wool, silk and hemp can be used on rotor spinning machines. At the same time, there are second times of opening and removing impurities in the spinning machine of the rotor spinning machine, so spinning the same number of yarns can still spin good yarn with lower grade raw materials.

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< p > analysis of yarn quality index: in addition to the single yarn strength is lower than the ring yarn 10~15%, other rotor spinning such as single yarn strength irregularity, finish degree (hairiness) and appearance defect are better than ring yarn.

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< p > < strong > ascension space is still huge. < /strong > < /p >

< p > despite the fact that rotor spinning has some advantages over ring spinning, it still has room for improvement.

Recently, the development of rotor spinning products in our country has been expanding, but the mainstream products are mainly concentrated in the processing of 30 low count yarn.

In order to win the competition with imported yarn, we must strive to innovate and achieve high quality and differentiated products.

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< p > Hongyang group's rotor spinning equipment is 360 sets of rotor spinning 30 sets of rectifier, 20 of which are fully automatic equipment, 10 have no automatic doffing, and the daily output yarn is 40~50 tons.

Dong Guandong said, at present, Hongyang group's spinning rotor spinning products are mainly 30~40 blended yarn.

As a low spin product and pure cotton product of rotor spinning mainstream products, there is basically no production at the beginning of rotor spinning.

The company's rotor spinning products are very popular with customers. Customers often appear in queues and other yarns, which can be said to be in short supply and bring great benefits to enterprises.

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< p > at present, the development of rotor spinning of non a href= "http://www.91se91.com" > cotton products < /a > has been well developed in China, but some people in the industry believe that its development prospect is still very broad.

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< p > rotor spinning is rich in raw material resources. The waste materials in the silk reeling plant, the fine wool and short wool in the top of the wool mill, the essence of the ramie spinning plant, the inferior rabbit hair and the cotton type chemical fiber can be used as raw materials, and rotor spinning has good adaptability to the materials with large length and many impurities.

The rotor spun yarn is suitable for producing coarse yarn, and the yarn number of coarse wool yarn and ramie yarn is suitable for the coarse yarn range of rotor spinning, and the thicker the number, the higher the output and the greater the economic benefit.

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< p > at present, a lot of rotor spinning enterprises in Zhejiang province have successively developed varieties of fine count cotton, low twist knitting yarn and Viscose Knitting yarn. Because of their uniform yarn evenness, good finish, less hairiness and less defects, the quality and grade of < a href= "http://www.91se91.com" > knitted fabric > /a > have been effectively enhanced, which is generally welcomed by knitting enterprises, and its selling price can be slightly higher than that of ring knitting yarn, so as to increase profits for enterprises.

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