Spinning – you must know when you are new to the textile industry

In the textile industry, different products have different requirements for yarn and Spinning. The author is engaged in the towel industry, has met many customers who are new to the industry and they don’t know about Spinning, so I’m here to introduce spinning to my dear friends, I hope it can be helpful to you.

At present, the main spinning methods are: Ring Spinning, Rotor Spinning, Air-jet Spinning, Vortex Spinning, Siro-Spinning, Compact Spinning, the following is a detailed introduction:



Ring Spinning


Ring spinning is the most commonly used spinning method on the market, refers to the fiber sliver (roving after being drafted) is introduced by the ring traveler, the bobbin winding speed is faster than the traveler, and the cotton yarn is twisted into spun yarn, which is widely used in the spinning of various short fibers. Such as carding, combing, and blending, the traveler is driven by the bobbin through the yarn and twisted by rotation. At the same time, the friction of the ring makes the speed slightly lower than the bobbin to get the winding.


Ring spinning machine


The speed is high, and the shape of the ring-spun yarn is a conical spiral with most fibers transferred inside and outside, which makes the fibers entangle and connect inside and outside the yarn. The yarn has a compact structure and high strength, it is suitable for thread making, weaving, and knitting, etc.


Ring spinning is also the main spinning method used by our company. Towels woven with ring spinning yarns have a compact structure and high strength, which is part of our company’s main choice for high-end towels!


Ring spinning (combing) process:

Clear cotton – carding – pre-drawing – sliver and winding – combing – drawing – roving – spinning – winding

Ring spinning (carding) process:

Clear cotton–carding–drawing–roving–spun yarn—winding



Rotor Spinning


Rotor Spinning does not use spindles, and mainly relies on multiple components such as opening rollers, rotors, and false twisting devices to complete spinning. The opening roller is used to grab and card the fed sliver fiber, and the centrifugal force generated by its high-speed rotation can throw the grabbed fiber out.


The rotor is a small metal cup, its rotation speed is more than 10 times higher than that of the opening roller. The centrifugal effect produced by this causes the air in the cup to be exhausted; according to the principle of fluid pressure, the cotton fiber enters the airflow cup and forms a fiber stream, which moves continuously along the inner wall of the cup.


Rotor Spinning machine


At this time, there is a yarn end outside the cup, which draws out the fibers on the inner wall of the cup and connects them together, plus the effect of the cup with the yarn tail rotating at high speed, it is like “feeding” the cotton fiber while adding yarn Kneading connects the yarn with the fibers on the inner wall of the cup, and draws the yarn under the spinning tension of the bobbin to continuously output the yarn to complete the process of Rotor Spinning.


Rotor Spinning has the advantages of high speed, large yarn roll, wide adaptability, simple structure, and no need for spindles, steel rings, and travelers, which can double the yield of spun yarn.



Difference between rotor and ring spinning


Rotor and ring spinning, the former is a new type of spinning technology, and the latter is an old-fashioned spinning technology. Rotor spinning is air spinning, while ring spinning is mechanical spinning, which is twisted by spindles, steel bells, and travelers, and drafted by rollers. In air spinning, the fibers are transported by airflow, and one end is held and twisted.

Generally speaking, the ring-spun yarn has less hairiness, higher strength, and better quality. The air-jet spinning process is short, the raw material is more short linters, the yarn wool, count and twist can not be too high, and the price is low. In terms of yarn structure, ring spinning is relatively compact, while rotor spinning is relatively fluffy and has a rough style. It is suitable for denim fabrics, and rotor spinning is generally thicker.


Terry of ring spinning towel

Terry of ring spinning towel


Due to space reasons, I will introduce the first two weaving methods for the time being, and the remaining methods will be introduced in the next article.




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