Abstract: A process for chrome aftertreatment comprising contacting the material to be chrome treated with a chromate in the presence of a composition comprising either(A.sub.1) a product of reacting a mono- or poly-functional primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine, whereby up to 50 mole % of the cyanamide, dicyandiamide guanidine or biguanidine may be replaced with a dicarboxylic acid or mono- or di-esters thereof, the product containing reactive hydrogen bound to nitrogen; or(A.sub.2) the product of reacting A.sub.1 above with an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amide optionally in the presence of a catalyst for the crosslinking of N-methylol compounds of the type above; or(A.sub.3) the product of A.sub.1 above with epihalohydrin or a precursor thereof; and(B) a reducing carbohydrate.