Effects of plasma treatment and metal‐ion chelation on lightfastness of dyed polyester/cotton fabric

Abstract

Polyester/cotton blend fabric was dyed with Chemistron dye-a mixture of reactive/disperse dyes. Dyed fabrics were subjected to radiofrequency (RF) plasma treatment of different duration and were subsequently treated with metal salts. The effect of surface modification by plasma and dye-metal complex on colorfastness to light is discussed. Evaluation of the improvement in lightfastness was made using the CIE system of color measurement with a standard illuminant D65 and 10°standard observer. The color parameters and color deviations were obtained by Data flash-100 color measurement spectrophotometer with chroma QC 3.0 color quality control software.

Adsorption of Lead(II) on O2-Plasma-Oxidized Multiwalled Carbon Nanotubes: Thermodynamics, Kinetics, and Desorption

“…As the plasma oxidation time increases, the peak intensity increases. This augmentation is related to the increase in unpaired electrons and free radicals created on the surface of MWCNTs after plasma oxidation. , Figure b shows the Raman spectra of MWCNTs before and after O 2 oxidation as a function of the oxidation time. In the Raman spectra, the G band of MWCNTs is close to the highly oriented pyrolytic graphite, which exhibits a single peak at approximately 1578 cm –1 related to the E 2g tangential mode, and the D band of MWCNTs exhibits a single peak at approximately 1351 cm –1 related to the disorder-induced feature .…”