It is also evident, Fig. 2, that post-dyeing of half-bleached premordanted
pique fabric samples with madder extract results in a
gradual increase in their K/S values (from 0.25 up to 0.82), reflecting
the positive effects of the used mordant on enhancing both the dye
adsorption as well as fixation onto and/or within the cellulose fibers
at the molecular level (Feng et al., 2007).