Low Twist Ring Spinning Technology Needs To Be Popularized Urgently.

< p > low twist spinning, also known as twist spinning, research background: the world has 200 million spindles, more than half in China.

The new spinning methods include rotor spinning, jet spinning, vortex spinning and friction spinning. They have advantages in improving efficiency and shortening operation procedures, but they are still unable to replace ring spinning in terms of material applicability and yarn quality.

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< p > based on < a href= "http://www.91se91.com/news/index_cj.asp" > ring spinning < /a > compact spinning, the yarn quality can be improved by controlling the arrangement or pfer of fibers in the spinning triangle area.

Compact spinning reduces the spinning triangle area, reduces single yarn hairiness and improves strength.

However, these technologies have not been able to reduce the residual torque of single yarn and solve the fabric quality problems resulting from it, such as the skew deformation of knitted fabrics, the uneven quality of woven fabrics and so on.

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< p > existing methods to eliminate residual torque of yarn: permanent molding, divided into heat treatment, humidification and chemical treatment.

The disadvantages are high energy consumption, fiber damage and wastewater discharge.

Physical balance treatment, two pairs of twist to single yarn reverse twist to form strands, two twist to single yarn knitting, Tandem spinning and twisting.

The disadvantages are high production cost, limited number of ply yarn, and not suitable for ring single yarn.

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The challenge of "P > low twist yarn: the residual torque in twisting process is related to the residual stress and the friction between fibers. In the case of twisting or low twist, the residual torque of the ring spinning will be removed or reduced.

With its coaxial helical structure, the low twist ordinary ring yarn is too weak to be used.

It is necessary to change the internal structure of yarns to achieve low twist, high strength and other quality indicators.

Automated mass production requires new devices and spinning processes.

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< p > twist spinning principle: by spinning accessories on ring spinning frame.

Spinning accessories are mainly made up of false twisters.

The function of the false twister is to produce false twisting, which affects the fiber tension distribution in the spinning triangle area, thereby changing the shape and distribution of the fibers in the single yarn, so as to balance the residual torque generated by the fibers in the yarn.

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< p > characteristics of twisted yarn: fiber orientation angle is smaller, fiber pfer amplitude is large, fiber fragments are locally reversed, fibers are gathered in single yarn inner layer.

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< p > compared with traditional ring spinning, the normal twist of twisted yarns is lower than 18%~40%, reaching or approaching the strength of traditional twisted yarn with high twist, greatly reducing hairiness, small single yarn torque, similar stripe, saving electricity and low running cost.

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< p > compared with compact spinning, twist yarn further reduces the twist of compact spinning, the single yarn torque is smaller, the hairiness is similar or better, the evenness is similar, the strength of single yarn is slightly lower, the power saving and running cost are lower.

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< p > spinning production increased by 18%~40%, spinning section saving 337 degrees / ton, no stereotypes, no chemical, water and steam pollution. The cloth was clean and smooth. < a href= "http://www.91se91.com/news/index_c.asp" > knitted sweater < /a > less twisting, soft handle.

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< p > twist yarn has been developed: pure spinning and blending raw materials, such as cotton, wool, cashmere, silk, polyester, spandex, modal, Tencel, etc.; spinning system: cotton spinning and worsted spinning system.

Cotton spinning, compact spinning, siro spinning, siro Phil spinning, etc.: single yarn varieties: Estex super soft single yarn, slubby yarn, elastic core spun yarn, 7~100 yarn branch, textile and clothing varieties: knitted sweater, T-shirt, underwear, jeans, towels, woven fabrics and garments.

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"P > twisted yarn in the market promotion: at present, the technology has been pferred to 9 companies. The first generation, fourth generation and fifth generation of low twist spinning technology have been applied to a total of 700 thousand spindles.

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The products of P twist gauze are abundant: knitted fabrics and garments, < a href= "http://www.91se91.com/news/index_f.asp" > denim dress > /a, towel, organic fabric and clothing.

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