A Study of Wool Carbonizing

Abstract

The surface barrier effect in dyeing carbonized wools was examined by dyeing various carbonized wools with CI acid red 1 at 25°C. Free acid is more evenly distributed on the surface of the wool fibers in rapid carbonizing than in conventional carbonizing. This free acid sulfates the surface layer of the wool during rapid carbonizing without increasing the permeability of the cuticle layer to dye. The distribution of the bound

Developments in wool carbonising

“…A 10 min time delay was found to be the optimum for both minimum damage and industrial productivity [60]. The delay was also found to have an effect on the dyeing properties of rapidly carbonised wool [61].…”

“…Zhao and Pailthorpe have studied the surface barrier effects produced in rapidly carbonised wool and found that rapid carbonising also introduces a dye-resist effect into the carbonised wool [61]. In addition, it was found that the free acid is more evenly distributed on the surface of the fibres and in the surface layer in rapid carbonising, as compared with conventional carbonising.…”