Novel hydrazono-hydrazonoyl chlorides containing pyrazole moiety for concurrent dyeing and practical finishing of cotton fabrics

Abstract

Four 2-(2-(5-(4-Methoxyphenyl)-1-phenyl-1H-pyrazole-3-carbonyl) hydrazono)-N’-arylpropanehydrazonoyl chlorides were designed outset from 4-methoxyaceteophenone, as raw matter, by interacting of carbohydrazide with four hydrazonoyl chloride derivatives in refluxing ethanol. The synthesized heterocycles stone was depicted and utilized through simple concern finishing as azo dyes for coloring and functionalization of cotton fabric. The outcomes obtained disclosed that the finishing treatments improved the nitrogen percent as well as wrinkle recovery angles along with a modicum decreasing in the tensile strength of treated fabric samples compared with the untreated fabric. The results assured also the perfect color fastness properties of the dyed samples, irrespective of the dye chemical structure. Besides, such dyes improved the treated fabric antibacterial properties as well as protection against the deleterious sun radiation. After 15 washing cycles, the dyed/finished samples exhibited satisfactory color strength and acceptable functional properties confirming stability and the tight binding of such dyes to the fabric chemical structure. Otherwise, both the untreated and treated textiles were recognized by means of scan electron microscope that signalizes hunting of such dyes by the cotton fabric structure.