the present invention include salts of persulfate examples of specific persulfate containing compounds useable in the present invention include ammonium persulfate sodium persulfate and potassium persulfate the following examples are intended only to further illustrate the invention and are not intended to limit the scope of the invention which is defined by the claims in the following examples bleaching of wool fabric was performed using an ahiba texomat ahiba inc charlotte n c laboratory dyeing apparatus oxidation potential was monitored on a voltmeter using a corning platinum redox combination electrode fisher scientific co springfield n j ph was monitored on an e amp k ph meter e amp k scientific product saratoga calif using a combination glass electrode cole parmer international chicago ill all bleaching treatments were carried out at a liquor to wool ratio of 30 milliliters liquor 1 gram of fabric wool samples 10 g were bleached in various bleach bath compositions and conditions whiteness astm e 313 and yellowness astm d 1925 indices were measured with a colorgard system 1000 tristimulus colorimeter pacific scientific co silver spring md sample illumination was by a quartz halogen lamp at color temperature of 2854 degrees kelvin with 360 u00b0 circumferential illumination cie source c 1931 standard observer illuminant geometry that is 45 u00b0 from the sample 39 s normal direction sample viewing.