Eco friendly dyeing of wool and cotton fabrics with reactive dyes (bifunctional) and its antibacterial activity

摘要

The aim of this study is dyeing wool and cotton fabrics by synthesized reactive dyes (bifunctional) via chromophore system derived from pyrazolo [1,2-a] pyrazole 3-carboxylic acid fused systems in our previous work [1] as reactive dyes for cotton and wool fabrics via ecofriendly, Microwave technique , to enhance favorable properties especially color strength and light fastness with decrease of dyeing time. In addition, impart it antibacterial activity comparing with our previous conventional method dyeing properties and antibacterial activity were estimated. Wool and cotton fabrics were dyed by using the prepared reactive azo dyes under ordinary dyeing conditions by using microwave. The antibacterial activity of the prepared dyes were evaluated by using Inhibition zone method by using S. aureus as Gram-positive bacteria and E. coli as Gram-negative bacteria, taking tetracycline and ciprofloxacin as standard drugs. The prepared dyes showed more values of exhaustion and fixation, colour yields, fastness properties and antibacterial activity.