Fancy yarn and spinning method thereof

Abstract

The invention discloses a fancy yarn and a spinning method thereof. The fancy yarn is a polyester / cotton blended yarn and comprises a base yarn and slubs. Longitudinal yarn density of the fancy yarn regularly changes in a fragment of a rotor perimeter, at least one slub occurs in one half rotor perimeter, and the base yarn in the other half rotor perimeter has uniform yarn density; the slubs are less than a base yarn body in fluffiness and twist degree. The fancy yarn is spun in such a manner that a single fiber flow is continuously given an external force on a path from entering a rotor until combining and coagulating by a certain length; the external force is applied in such a manner that positive or negative pressure external air flow is applied to slots of the rotor. The fancy yarn is unique in style, rotor-spun products are more diversified, and the fancy yarn has higher practicality and higher economic value.

Description

technical field [0001] The invention belongs to the technical field of spinning, and relates to a fancy yarn and a spinning method thereof, in particular to a method of continuously applying a single fiber flow on a path from entering a rotor to before merging and agglomerating over a certain length. Rotor spun fancy yarn whose linear density changes longitudinally by the method of external force. Background technique [0002] Rotor spinning belongs to the field of open-end spinning. It has the characteristics of high spinning speed, large package capacity, good spinnability and the ability to spin high-quality and low-quality raw materials. It has become the most mature technology and the most widely used spinning technology among new spinning technologies. Wide and economical spinning form. [0003] Initially, only low-cost raw materials were used in rotor spinning, such as waste from textile mills or reusable textile materials. In the mid-1970s, rotor spinning was only ...

AI Technical Summary

Problems solved by technology

[0005] Using the method of changing the speed of the feeding roller or the speed of the yarn delivery roller, the shortest fancy yarn can be spun with a slub of the length of the circumference of the rotor, and the length and diameter of the slub are greatly affected by the diameter of the rotor and the performance of the motor; The method of setting damping points in the rotor is to set one or several damping points in the fiber condensation groove in the rotor to spin fancy yarns. Although this method can be used to spin fancy yarns with short thick details, However, dust is easy to accumulate on both sides of the fiber condensation groove, especially the damping point, which makes the coarse and fine details of the fancy yarn unstable; the method of engraving the groove in the rotor is to manually process grooves on the fiber sliding surface to make it have a certain depth and length, but this method will also cause dust accumulation in the groove, which will affect the stability of the fancy yarn

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