Investigation of the effect of different parameters on the colour yield in the dyeing of knitted cotton fabric by reactive blue 221

INVESTIGATION OF THE EFFECT OF DIFFERENT PARAMETERS ON THECOLOUR YIELD IN THE DYEING OF KNITTED COTTON FABRIC BYREACTIVE BLUE 221(M. Sc. Thesis)MURAT KOCAGAZI UNIVERSITYINSTITUE OF SCIENCE AND TECHNOLOGYOctober 2006ABSTRACTIn this study, knitted cotton fabric was dyed in the exhaust dyeing method withBlue KBR (C.I. 221) which is a heterobifunctional reactive dye containingmonochlorotrazine and vinylsulphone groups different parameters were studiedsuch as salt, alkali, time and temperature and optimum dyeing conditions weredetermined. At the end of dyeing; washing, friction, light and color fastness testswere done and expected good results were obtained. L, a, b values were evaluatedin the three dimension color scale and red color was observed for color yield, K/Sand ∆E* parameters were found by spectrophotometric method and theseparameters were compared with those in the literature parameters.Science Code : 912.1.140Key Words : Reactive dyes, fastness, exhaustPage Number : 91Adviser : Assoc. Prof. Dr. Ayşe MURATHAN