One-bath pigment dyeing water-and oil-repellent-flame retardant coating finish of cotton canvas

One-bath pigment dyeing water-and oil-repellent-flame retardant finish of pure cotton canvas was carried out,and the influences of the coating formula and coating volume,etc.on multifunctions of the one-bath dyed and finished cotton canvas were studied.The morphology,surface elements and thermal properties of the fibers were characterized using scanning electron microscopy(SEM),X-ray energy spectrum analysis(XPS) and thermoanalysis(TG).The results indicated that the one-bath dyed and finished cotton canvas had water-and oil-repellent rating of 4,water-pressure resistance up to 180 kPa,flame retardant rating of B1,and wet rubbing color fastness rating of 4,with significant increase of fluoride and phosphorus content on the surface of the fibers.There are also three cracking stages after multifunctional coating,but each stage of the temperature is decreased obviously,especially in the main stage;and the residue quantity is obviously improved.