Fig. 4

A Nano-computed tomography scanned cotton. A single warp yarn of the textile is shown to be 0.5 mm thick with individual fibres having approximately 0.02 mm diameters. After a scan, we can see the sample in 3D or look at the different cross-sections from different planes. Cross-sectional image with orange circles indicates individually segmented fibres that also show the C-shape. B Internal segmented fibres can then be shown without the surrounding tissue to reveal the morphology of the fibre in more detail (Images by V-P. Karjalainen)