| Abstract: | ![]()
Water-dispersable products have been prepared from the reaction of magnesium acetate tetrahydrate with hydrogen peroxide at mole ratios of 1 : 2 to 1 : 40 to produce compositions with active oxygen or peroxide contents of 1–30%. The products are believed to be stoichiometric mixtures of HOO Mg OAc and HOO Mg OOH that vary in composition with the molar ratios used. These new compounds are hydrolytically stable at ambient temperatures for extended periods (at least 60 days) and thermally stable below 300°C. Pad-cure processes are described for applying the above reaction products as a dispersion in water or aqueous hydrogen peroxide or as a foam in aqueous hydrogen peroxide to impart antibacterial activity to celulosics, synthetic fibers and fiber blends. The textiles are treated with dispersions or foam containing 10–17% of the reaction products derived from mole ratios of 1 : 2 to 1 : 40 magnesium acetate tetrahydrate: hydrogen peroxide. On subsequent heating for 2–4 min at 120–150°C, washing and drying, the modified textiles contain durably bound active oxygen or peroxide (0.1–1.7%) that has activity against representative gram-positive and gramnegative bacteria for up to 50 launderings. |
