Patent ID: 6872228

Claim:
A hair bleach product in kit form comprising: (A) a hair bleaching system comprising: (a) a peroxide-based developer component containing by weight of the developer component from about 3 to about 15% hydrogen peroxide (b) a powder activator component comprising by weight of the activator powder component from about 40 to about 80% of an alkali metal persulfate selected from the group consisting of sodium persulfate, potassium persulfate, ammonium persulfate, and mixtures thereof, and (c) an alkalizing agent component comprising in an aqueous vehicle by weight of the alkalizing agent component, from about 3 to about 25% of an alkalizing agent, the components (a), (b) and (c) being adapted for admixture to form a hair bleach product composition intended for application to the hair of a consumer, said hair bleach product composition having a thixotropic rheology and a viscosity of from about 20,000 to about 60,000 cps. at 25° C. and atmospheric pressure, and (B) an applicator comprising a handle, at least one head at the distal end of said handle, and at least one reservoir, said reservoir being a substantially open volumetric space defined by a plurality of tines extending outwardly from said head, whereby the hair bleach product composition, when contained in the reservoir, is essentially nonflowing in the absence of shear, and is shear thinned when the reservoir containing the hair bleach product composition is pulled through the hair to deposit the hair bleach product composition on the hair.