Effect of twist on permeability of the sewing thread

An accurate assessment of the axial permeability of sewing thread with different twists was presented. Meanwhile, the dimensions of the sewing threads with different twists and their interface with resin were discussed by the scanning electron microscope technology. The experimental results show that the increasing of sutures' twist degrades the permeability along the axial direction of sewing thread and dimensions of sutures' cross-section decrease while the interface of sewing thread and resin deteriorate with increasing the twist of the sewing thread. However, the dimensions of sutures after infiltration of resin are greater than before.