Reaction of Wool with Alkylamines Possible Technique for Producing Differential–dyeing Wool

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Abstract
The action of methylamine, dimethylamine and trimethylamine on wool has been followed by estimating the amounts of βN–monomethyl–β–aminoalanine (I), βN–dimethyl–β–aminoalanine (II), lysinoalanine and lanthionine formed as a result of the degradation of the cystine residues in the fibre by the amines. Because of the electronegativity of the nitrogen atoms in I and II, the treated fibres are more reactive than untreated ones. The dye substantivity of the treated fibres is much greater than that of the untreated fibres, leading to the possibility of a technique for producing differential–dyeing wool.