fibre reactivity involves the reaction of a functional group of the dyestuff with a site on the fibre to form a covalent link between the dye molecules and the substrate. the four structural feature of a typical reactive dyes molecule are: the chromophoric grouping, contributing the colour much of the...
lay around one another in concentric helical paths. the normal forces encountered by the fibres enhance the adhesive forces between the fibres and prevent fibres from flying or slipping past each other under the tensile strain. it is the process of further drawing out roving to the final yarn count...
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reactive dyes contained dichlorotriazine and vinyl sulphone groups. these and other dyes were synthesized based on, there low affinity for textile especially cellulose fibres. on their reactivity towards fibres. the ph of the fixation reaction of the dye with the fibres. the optimum temperature of the...
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