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:
Jan. 19, 2010
Filed:
Jul. 06, 2004
Juergen Schmenger, Weiterstadt, DE;
Petra Braun, Muenster, DE;
Jolanthe Kujawa, Darmstadt, DE;
Martina Glattefelder, Heddesheim, DE;
Anne Entzminger, Griesheim, DE;
Anette Sallwey, Griesheim, DE;
Herbert Deutz, Woodland Hills, CA (US);
Juergen Schmenger, Weiterstadt, DE;
Petra Braun, Muenster, DE;
Jolanthe Kujawa, Darmstadt, DE;
Martina Glattefelder, Heddesheim, DE;
Anne Entzminger, Griesheim, DE;
Anette Sallwey, Griesheim, DE;
Herbert Deutz, Woodland Hills, CA (US);
Wella AG, Darmstadt, DE;
Abstract
The agent for coloring keratin fibers is free of chemical oxidants, is in the form of an aqueous or aqueous-alcoholic dye-containing preparation, and contains a combination of oxidation dyes and at least three direct dyes. The agent is characterized by a quantitative ratio of oxidation dyes to direct dyes equal to 5:1 to 0.5:1. A method of dyeing hair is described in which the agent is applied to hair and allowed to act on the hair for an acting time of 5 to 60 minutes without addition of chemical oxidants, so that air oxidation provides a uniform and stable coloration of the hair.