Yarn made of short fibers obtained by stretching and controlling fracture of long fibers and articles thereof

Abstract

The invention provides a yarn made of short fibers obtained by stretching and controlling fracture of long fibers and a product thereof. Each single-strand yarn comprises a plurality of tightly combined short fibers. The plurality of tightly combined short fibers are obtained by stretching N strands of long fiber bundles and controlling fracture, and are spun by a spinning process, and N is a natural number. According to the invention, within a sampling length equal to or less than 10 meters, the ratio of the number of short fibers having a length equal to or greater than 60% of the set fiber length among the plurality of short fibers to the total number of the plurality of short fibers is equal to or greater than 60%. The fiber length is set to be equal to or greater than 65 mm. The weight distribution dispersion of the average length of the single yarn according to the invention is equal to or less than 60%.

Description

technical field [0001] The present invention relates to a single-ply yarn, ply yarn and textile products woven from short fibers obtained by stretching and controlling the breaking of long fibers, and especially relates to a kind of short fiber made of stretching and controlling breaking of long fibers. The resulting short fiber is made of single-ply yarn, ply-ply yarn and textiles woven therefrom with high strength and high diameter uniformity. Background technique [0002] For the continuous long fibers made of various materials, due to the consideration of application and cost, the continuous long fibers will be further shortened into short fibers and spun into yarns. The properties of these yarns spun from short fibers are inferior to those of continuous long fiber bundles of the same diameter and materials, including strength, diameter uniformity, and the like. Stretch-breaking spinning is to improve the spinning technology to obtain properties closer to long fiber bun...

AI Technical Summary

Problems solved by technology

Because the stretching method of the prior art has poor control over the dispersion of the yarn length distribution, so the U.S. Patent No. 482,563 patent discloses that the carbon fiber yarn made by the stretching method cannot be obtained only from the carbon fiber of the stretching method. Average length to ensure the strength of carbon fiber yarn