Simulation of fiber arrangement in slivers based on image processing

Abstract

The fiber arrangement in a sliver has a significant effect on sliver quality, especially on its evenness. In this work, a novel method was developed to simulate fiber arrangement based on the variation fineness of each sliver subsegment relative to the mean sliver fineness, which was acquired from the tested sliver unevenness curve by image processing. The modeling results of viscose indicated that the non-random fiber arrangement in the sliver could be appropriately and graphically expressed by the variation in the fineness of each sliver subsection relative to the mean sliver fineness. The results further indicated that the simulated fiber arrangements in the sliver were in line with actual ones. Moreover, the relative errors between the irregularities calculated from the fiber arrangement in the sliver and those measured were less than 8%, whereas the relative errors between the simulated values from the random fiber arrangement and those tested were approximately 95%. The obtained simulation results demonstrated that this new method accurately simulated the non-random fiber arrangement in the sliver and provided an accurate prediction of sliver irregularity in the further post-spinning processes.