Synthesis of some biologically active monoazo disperse dyes derived from nicotinic acid derivatives under microwave irradiation for dyeing polyester fabrics

Synthesis of some azo disperse dyes based on pyridone moiety and their application on polyester fabrics

“…Fastness properties of the dyed samples were tested to washing, rubbing, perspiration, and light fastness according to AATCC standard tests [10][11][12].…”

Synthesis, characterization and antimicrobial activity, and applications of new azo pyridone disperse dyes on polyester fabric

“…A specimen of dyed polyester fabric was stitched between two pieces of undyed cotton and wool fabrics, all of equal length, and then washed at 50 °C for 30 min. The changes in color were assessed according to the gray scale [14].…”

“…The alkaline solution (pH = 8.7) contains sodium chloride (10 g/L), disodium orthophosphate (1 g/L) and histidine monohydro chloride (0.25 g/L). The changes in color were assessed according to the gray scale [14].…”

“…Light fastness was determined by exposing the dyed polyester on a Xenotest 150 (Original Hanau, chamber temperature 25-30 °C, black panel temperature 60 °C, relative humidity 50-60%, and dark glass (UV) filter system) for 40 h. The changes in color were assessed according to the blue scale [14].…”

“…The antimicrobial activities of arylhydrazonals and disperse dyes were tested using Agar-well diffusion technique [14,15], against five different microbial cultures. Pure cultures of Bacillus subtilis and Staphylococcus aureus (Gram positive bacteria), Escherichia coli and Pseudomonas aeruginosa (Gram negative bacteria), and Candida albicans (Yeast) were involved in the test.…”