FLUORESCENT DISPERSE DYES: REFLECTANCE SPECTRA, RELATIVE STRENGTH AND PERFORMANCE EVALUATION OF COUMARIN CLASS ON POLYESTER/COTTON BLENDED FABRIC

Nawshin Farzana

Abstract: This study attempted to focus on some important properties of regular fluorescent disperse dyes on polyester/cotton fabric. A 60/40 p/c blended woven fabric was used to dye only the polyester part in pad-thermosol dyeing process (continuous method) with different concentrations of fluorescent disperse dyes. The selected dyestuff was Terasil Flavine 10GFF belonging to coumarin class of fluorescent dye. This paper mainly aims to investigate Spectral parameters such as Reflectance curve, K/S values (with Kubelka-Munk equation) and Relative strength percentage with different concentrations of fluorescent dyes. Different color fastness properties like wash, water, rubbing, perspiration and light fastness were also assessed to evaluate performance of polyester substrate dyed with fluorescent dyes.

Keywords: DWT, DCT, SPIHT, PSNR, MSE

DOI: https://doi.org/10.15623/ijret.2015.0402067