Production of cationic dyeable poly(ethylene terephthalate) fibers via nanotechnology

Abstract

Nano-titanium oxide/nano-zinc oxide/poly(ethylene terephthalate) (nano-TiO 2 / nano-ZnO/PET) nanocomposite fibers were successfully prepared by a laboratoryscale melt spinning process. The properties of pure and modified PET fibers including tensile (tenacity and elongation at break) and thermal properties, and the dyeability properties of cationic dyes with and without carrier were studied. The modified PET nanocomposite fiber containing 0.15 wt% nano-titanium dioxide and 0.15 wt% nano-zinc oxide showed the best cationic dye adsorption property, excellent washing fastness and good light fastness. Also, a significant effect on the dye adsorption of modified PET fibers was observed at boiling temperature due to the presence of carrier agent. K E Y W O R D Scationic dyeable poly(ethylene terephthalate) fiber, exhaustion, nanocomposite, nano-TiO 2 , nano-ZnO

Studies on the dyeability and dyeing mechanism of polyurethane/clay nanocomposite filaments with acid, basic and reactive dyes

“…A good dispersion of layered silicates in PU elastomer nanocomposites has been found to improve mechanical properties, thermal stability, gas barrier properties and flame retardancy, etc. Although several studies have reported on the dyeing of clay or layered‐silicate nanocomposites of polypropylene , polyethylene terephthalate (PET) , polyamide 6 , polylactic acid (PLA) and PU , there is almost no literature reporting on the dyeing of PU/clay in filament form. Therefore, in the current study PU filaments have been modified by the incorporation of nanoclay to increase their dyeability with acid dye, basic dye and reactive dye.…”