2results about How to "Improve evenness" patented technology

This invention relates to a blending process for hemp fiber and sorona fiber, belonging to the technical field of blending and processing of natural fibers and bio-based elastic fibers. The blending process for hemp fiber and sorona fiber of this invention includes the following steps: raw material selection → pre-spinning process → post-spinning process → packaging. This invention solves the problems of poor spinnability, high breakage rate, and stiffness and wrinkling in pure wet-spun hemp through specific proportions and wet spinning processes, achieving high-count, stable, and high-quality production. This significantly improves spinnability, enhances yarn quality, and greatly improves hand feel and comfort, achieving high elasticity and comfort to meet user needs.

The application relates to a spinning method of a two-component blended yarn, which adopts a double-feeding double-separation comb rotor spinning technology, and the two-component blended yarn is composed of first-component fiber segments and second-component fiber segments arranged alternately; first, the ratio S of the length L1 of the first-component fiber segments to the length L2 of the second-component fiber segments in the two-component blended yarn is set, S is not equal to 1, and the types or colors of the first component and the second component are different; then, the included angle lambda between the vertical line C1 of the first-component corresponding fiber outlet and the rotary axis of the rotor and the vertical line C2 of the second-component corresponding fiber outlet and the rotary axis of the rotor is calculated; finally, the feeding mass ratio of the first component to the second component is controlled to be 1:1, the spinning is carried out according to the calculated included angle lambda, and the two-component blended yarn is obtained. The application can realize accurate regulation and control of the interval distance proportion of the two-component fiber segments on the yarn surface, and the obtained yarn strength and yarn evenness are good.