A draft sliver or roving It is widely used in spinning engineering of various staple fibers, such as carding, combing and blending. The steel ring is driven to rotate by the bobbin through the sliver. At the same time, the friction of the steel ring makes its speed slightly less than that of the bobbin so that it can be wound. The spinning speed is high, The form of ring spun yarn is that most of the fibers transfer from inside to outside, which makes the fibers twined inside and outside of the yarn. The structure of the yarn is compact. It is suitable for making thread, weaving and knitting products.
Rotor spinning is rotor spinning
The core is a spinning cup, in which the fiber is fed from the feeding roller to the plate, and is opened into single fiber by the high-speed small prick roller (combing roller). The negative air pressure in the spinning cup makes the single fiber flow through the conveying pipe with the feeding air into the spinning cup, and under the centrifugal force of the high-speed rotation of the cup, it clings to the condensing groove at the large inner diameter of the rotor along the smooth inner wall, forming annular fiber strips, When the guide yarn is pulled out of the spinning cup, the fiber sliver leaves the condensation groove with the yarn tail, and is twisted by the high rotation rotation of the spinning cup at the same time. After being pulled out of the spinning cup, the fiber bar is pulled out by the output roller through the anti twist disc and the yarn guide tube. The bobbin is driven by the groove tube and wound into a package. It is suitable for spinning short fiber, medium and coarse tex yarn, The fiber sliver is clean and uniform, and the yarn twist is more. Its shape is different from ring spinning. In appearance, the twist of rotor spinning is high. The core of yarn is surrounded by a layer of low twist fiber. From the axis to the surface, the rotor spun yarn is mostly used to weave corduroy, denim, yarn dyed velvet and printed velvet
How to separate yarn from ring spinning or rotor spinning
1) In terms of hairiness, the hairiness of rotor spinning is less than that of ring spinning
2) ring spinning with the same number of yarns is higher than that of rotor spinning
3) In terms of twist, ring spinning can be completely untwisted, while rotor spinning can not.