Abstract
Cotton fabric was esterified with chloropropionyl chloride followed by reaction with amines, in order to introduce primary, secondary, tertiary and quaternary amino residues. The reactive dyeing proper ties of these chemically modified fibres were studied, especially from the point of view of dyeing in the pH region 5-7 without added electrolyte. The conditions employed to introduce amino residues on the chloropropionated cotton appeared to affect the ultimate mode of attachment of the amino group. These reactions have been studied and a reaction scheme proposed involving the chloropropionic acid acting as a leaving group under severe animation conditions.
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