Abstract
Change in the fine structure of Polyester fibers treated with Carriers such as Orthophenyl phenol (OPP) and Methyl salicylate was investigated in relation to the study of organic solvent/water treatment. Furthermore, Polyester fibers heat-set under fixed and relaxed conditions were treated also in the same way.
Crystallinity by density measurement, X-ray diffraction pattern, and crystallite size and lattice spacing of these fibers were investigated. The fibers treated with the Carriers, especially OPP showed a clear reflectance image of (010), (_??_10), (100) and (0_??_1) planes and increases in the crystallite size and the crystallinity.
On the other hand saturation values of C. I Disperse Violet 1 of these fibers also increased by the Carrier treatment. These results are the same as those obtained for the treatment of Polyester fiber with organic solvent/water such as benzyl alcohol/water reported previously.
Carrier treatment of Polyester fiber leads to a considerable change of the fine structure not only in the crystalline region, but also in the amorphous region
