The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Nov. 04, 2002
Minmin Tian, East Brunswick, NJ (US);
Geoffrey Robert Hawkins, Langhorne, PA (US);
Alexander C. Chan, Cranbury, NJ (US);
Revlon Consumer Products Corporation, New York, NY (US);
Abstract
A method for coloring hair and removing the color from the hair when desired, comprising coloring the hair with an aqueous hair color composition comprising, in combination: (i) a reducing agent capable of reducing the —S—S— bonds on the hair fiber surface to form reactive —SH groups; and (ii) a dye molecule containing chemical groups reactive with the —SH groups on the hair fiber surface to form —S—S— bonds between the dye molecule and the hair fiber surface when the hair color composition is applied to the hair at ambient conditions; wearing the colored hair for the desired period of time; and then removing the color from the hair by contacting the hair with an aqueous based color removal composition containing a reducing agent capable of disrupting the —S—S— bonds between the dye molecule and the hair fiber surface to cause the dye molecule to become disassociated from the hair fiber; and a method for removing dye bonded to the hair fibers via an —S—S— linkage, comprising applying to the hair an aqueous based color removal composition containing a reducing agent capable of disrupting the —S—S— bonds between the dye and hair fiber surface.