Research on Cotton Yarn Based on Synchrotron Radiation 3D Micro-CT Imaging

Synchrotron radiation–CT (SR–CT), as a non-invasive method to study the internal structure of materials, has been widely used in the textile field. In this study, the cotton yarn produced by different spinning processes was first packaged, and then, the CT images of the same variety of cotton yarn spun by different processes were collected by SR–CT technology, and the AI-assisted segmentation module in Avizo was used for 3D visualization characterization. The results show that SR–CT imaging technology has the advantages of high resolution and non-destructive, and can characterize the three-dimensional microstructure of yarns with sub-micron resolution, so as to obtain the structural characteristics of yarns and fiber transfer characteristics in yarns. In addition, the mechanical properties of yarns produced by different processes are compared and analyzed, and the mechanism of the difference in mechanical properties caused by the change of fiber structure in yarns is revealed.