Interferenzmikroskopische charakterisierung von faserstrukturen, 3. Die änderung des radialen verlaufes der physikalischen struktur von polyethylenterephthalat-fasern beim färben mit dispersionsfarbstoffen

The change of the radial structure during the diffusion of dyestuffs in fibers of poly(ethylene terephthalate), poly(oxyethyleneoxyterephthaloyl)], is studied with regard to the relationship between the dyestuff diffusion and the structure of high polymers. The fiber structure is described by interferometric measurements, which allow statements about order and orientation as a function of the diffusion path. The experimental results show that C. I. Disperse Red 60 raises the parameters which describe the order and orientation and that C. I. Disperse Blue 139 lowers these structure parameters.