the structural formula str8 wherein r 1 r 2 and r 3 are chosen from the class consisting of aliphatic alicyclic aromatic heteroaromatic ester and ether groups still more preferred are the polyepoxides represented by the structural formula str9 wherein n is from about 1 to about 15 the polyamine and the polyepoxide may be applied simultaneously or in either order so long as both are present on the fabric for curing if the polyamine and polyepoxide are applied simultaneously from an admixture it is sometimes advantageous for that admixture to be slightly acidic to retard premature reaction but this is not always necessary if the holding time is sufficiently short the polyamine and the polyepoxide may be applied by any method which applies a sufficient amount to the fabric suitable methods include padding spraying dipping and immersion after the polyamine and polyepoxide contact the polyester the ph is not critical it may be acid basic or neutral and crosslinking will occur typically the polyether polyamine will be at least 0 05 of the weight of the polyester preferably the amount of polyether polyamine applied will be between about 0 2 and 10 of the weight of the polyester and more preferably between about 1 and 5 the amount of epoxide applied should be sufficient to crosslink the polyamine and the cellulose derivatives typically the amount of epoxide will be at least about 1 of the.