A Method for Controlling Cationic Exchange in Cotton

The abnormally high copper content of cotton duck which has been impregnated with the solution of a copper salt is due to the adsorption of ionic copper by the cotton. This adsorption may be prevented completely by scouring the fabric and then applying the copper in the form of a water-soluble molecular complex. Citric acid and glycine form such complexes with copper and are effective in preventing its adsorption.