By amidoximation with the aqueous hydroxylamine and subsequent formaldehydecuring in the presence of a weak acid catalyst such as ammonium acetate or even in the absence of catalyst, the crease resistance of cyanoethylated cotton fabrics containing a low percentage of nitrogen was improved significantly without much loss in the tensile strength and elongation, but a decrease in the flex abrasion and tear strength occurred.From the results, it was deduced that the longer cross link chain might be formed to some extent between adjacent amidoxime or hydroxamic acid groups in different cellulose molecules. After curing, the amidoximates retain great affinities for acid dyes and have a wool-like hand.

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Researches on the amidoximation of N % 3•`5 partially cyanoethylated cotton fabric with the aqueous NH2OH.HCI solution were carried out, including the effects of temperature and pH of reaction bath, concentration of NH2OH.HCI NH2OH/CN mol ratio and addition of nonionic surface active agent on the rate of amidoximation and the mechanical properties of the treated fabric. The results obtained are as following :

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