Synthesis of new reactive dyes containing commercial UV-absorbers with enhanced simultaneous dyeing and anti-UV properties for cotton fabric

Two new reactive anti-UV dyes were synthesized based on two commercial UV-absorbers, ethyl 4-aminobenzoate for dye 1 and 4-aminobenzophenone for dye 2, which were incorporated in a structure modified from commercial reactive dye CI Reactive Red 198 (dye 3). Optimum exhaustion and total fixation values were achieved at 80 ​g/l sodium sulphate for dye 1 and 60 ​g/l sodium sulphate for dye 2, 20 ​g/l sodium carbonate at 70 ​°C for dye 1 and 80 ​°C for dye 2 and 60 ​min fixation time for both dyes. The two new reactive dyes exhibited higher dyeing properties and UPF values than the commercial reactive dye over all the dye concentrations studied. The new reactive dye 1 achieved the highest exhaustion, total fixation and UPF values. The fastness properties obtained for all the dyeings ranges from good to excellent.