CHANGE IN THE FINE STRUCTURE OF POLYESTER FIBER TREATED WITH CARRIER

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