Bleaching methods with peroxy compounds

摘要

A method of treating a fabric using an effective amount of a two component system comprising: i) a source of peroxy bleach; and ii) a source of peroxy bleach activator in liquid form where the two components are mixed at the time and location of use to form an activated peroxy bleaching system.

主权项

1. A method of activating a peroxy bleaching compound for treating a fabric, the method comprising:
i) providing a peroxy bleaching compound wherein the peroxy bleaching compound is selected from the group consisting of a peroxide, a perborate, a percarbonate, a persulfate, a perhosphate, a benzoyl peroxide, and combinations thereof, ii) providing a liquid peroxy bleach activator, wherein the liquid peroxy bleach activator consists of between about 60 percent to 99.8 percent water by weight, between about 0.1 percent to 20.0 percent tetraacetyl ethylenediamine (TAED), and between about 0.1 percent to 20.0 percent NaOH by weight; iii) combining the peroxy bleaching compound and the liquid peroxy bleach activator at a time of use by dispensing the liquid peroxy bleach activator through an automatic liquid dispensing unit into contact with the peroxy bleaching compound to form an activated peroxy bleaching system; and iv) treating the fabric with the activated peroxy bleaching system by immersing the fabric in a wash solution containing the activated peroxy bleaching system.