Process for improving the fastness properties of dyestuffs...

Details Process for improving the fastness properties of dyestuffs... Process for improving the fastness properties of dyestuffs...

C - Chemistry, Metallurgy

08

G

8/44, 260/540.1,

C08G 73/02 (2006.01) D06L 3/12 (2006.01) D06P 1/54 (2006.01) D06P 1/649 (2006.01) D06P 5/08 (2006.01)

Patent

CA 1227215

IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS Abstract of the Disclosure A precondensate obtained by reacting A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or bi- guanidine and B) an epihalohydrin is obtained in the form of a stable aqueous dispersion by acidifying the reaction product, optionally in the presence of a water-soluble polymer. The product is useful as an after-treatment agent to improve the fastness of dyeings on cotton, wool or silk.

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