The difference between ring spinning and air spinning is a spinning method in which drafting, twisting and winding are carried out simultaneously. The roving is drawn in the drafting system to the required yarn, and then The yarn is twisted and wound by a steel ring and a wire ring to form a yarn. Due to the drafting action, the width of the strand in the main drafting zone is several times the diameter of the spun yarn, and the fibers are free when they reach the front jaw line. When the fibers are separated from the front jaw line, they are twisted together, thus forming a spinning and twisting triangle. The spinning twisted triangle prevents the edge fibers from completely entering the yarn body, and some of the edge fibers are separated from the main body to form a fly flower. More edge fibers are one end that is broken into the yarn body and the other end is formed with hairiness. These fibers not only have a negative effect on the uniformity, elasticity and the like of the yarn, but are extremely disadvantageous to the strength of the yarn. In addition, the fibers on the outer side of the triangular region are most subjected to the tension at the time of twisting, and the tension at the center of the fibers is minimized, so that the initial tension of the fibers at the time of yarn formation is not equal, thereby affecting the strength of the yarn. These are the defects caused by the traditional ring spinning spinning triangle. Please indicate the source.
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Rotor spinning, also known as air spinning, is a free end spinning method. The sliver fed directly into the spinning machine is combed into a single fiber by the opening roller, and the centrifugal force of the fiber* separating roller and the negative pressure airflow in the spinning cup are separated from the surface of the opening roller through the cotton conveying pipe and into the spinning cup. And forming a complete fiber ring in the coagulation tank, the fiber ring rotates with the rotor at a high speed, and under the action of the joint yarn, the yarn is continuously conveyed and the fiber bundle is continuously stripped.
Air spinning is generally a low-spun yarn, and ring spinning is mostly a spinning spinning ring spinning. It is the most widely used and most common spinning method on the market, and the fiber after drawing or roving is drawn. The strip is introduced by the rotation of the ring wire loop, the winding speed of the bobbin is faster than that of the steel wire loop, and the cotton yarn is twisted to make a spun yarn. It is widely used in various short fiber spinning projects, such as carding, combing and blending, and wire ring. The bobbin is rotated around the steel ring by the gauze. At the same time, the friction of the steel ring makes the rotation speed slightly smaller than that of the bobbin, and the spinning speed is high. The shape of the ring yarn is mostly internal and external transfer of the fiber. The conical spiral line allows the fibers to be wound and joined inside and outside the yarn. The yarn has a compact structure and high strength, and is suitable for various products such as thread making and weaving and knitting.
Ring spinning (combing) process:
Clear flower room--carding--pre-adhesive-------- combing----------------------------------------------------------------------------------------- Process:
Clear flower room--carding---head-and-strip--two-way draw---roving--spun yarn--winding
Air spinning is also called air- jet spinning. He does not need a spindle, but mainly relies on two parts of the combing roller and the airflow cup. The opening roller is used to grab and comb the fed sliver fiber, and the centrifugal force generated by his high-speed rotation can pry the grasped fiber. The airflow cup is a small metal cup. Its rotation speed is 4-5 times higher than that of the opening roller. The resulting centrifugal action discharges the air in the cup outward. According to the principle of fluid pressure, the cotton fiber is made. Enter the airflow cup and form a fiber stream that moves continuously along the inner wall of the cup. At this time, there is a yarn end outside the cup, which pulls out the fibers on the inner wall of the cup and connects them together. Together with the effect of the high-speed rotation of the yarn tail, the cup is like “feeding†the cotton fiber while adding the yarn. The wire is kneaded to connect the yarn to the fiber of the inner wall of the cup, and is drawn under the winding tension of the bobbin, and the yarn is continuously outputted to complete the process of air spinning.
Air spinning has the advantages of high speed, large yarn roll, wide adaptability, simple mechanism and no need for spindles, steel collars and wire loops, which can double the yield of spun yarn.
Air spinning and ring spinning are new textile technologies, one is old-fashioned spinning technology. Air spinning is air spinning, while ring spinning is mechanical spinning, which is twisted by spindles and steel bells and wire loops, and drafted by rollers. In the case of air spinning, the fibers are transported by airflow and held at one end by twisting. In general, the ring yarn has less hairiness, higher strength and better quality. The air spinning process is short, the raw material is short, the yarn is small, the count and the twist are not high, and the price is low.
From the perspective of the yarn body structure, the ring spinning is relatively tight, and the air spinning is relatively fluffy, the style is rough, suitable for denim fabric, and the air-jet spinning yarn is generally thick.