1998 Volume 71 Issue 1 Pages 2-7
In order to obtain information on the dyeing mechanism of polyester fibers with azomethine dyes, we have investigated the interactions between a poly (ethylene terephthalate) film (PET) and azomethine dyes by the analysis of UV and visible absorption spectra in applying a modified McRae' s equation. The orientation force of the azomethine dyes estimated from the equation was about 0.1-0. 2kcal/mol, which was about 1 - 2 % of the total dye-PET interaction. The sum of dispersion and induction force of the azomethine dyes estimated from the equation was 7-14kcal/mol, which was about 98-99% of the total dye-PET interaction.