Mercerising fabric stretching - uses rollers with alternating ridges and projections to tension material passing through the caustic soda

摘要

In passing knitted or woven materials through a caustic soda lye for mercerising, the fabric has to be stretched from the sides. The stretching effect is imparted by a number of cylindrical rolers with their surfaces fitted with projections and riges. These are arranged in an alternating pattern, to engage in gaps, so that the fabric passing through the assembly is forced to follow a wandering path round the rollers. The design ensures that an even and consistent tension is applied across the fabric without damaging the fabric structure.