Patent · US Expired

Composition for dyeing keratin fibers containing vegetable dyes, a direct dye compound and oil and method of dyeing hair using same

US5865853A · kind A · utility

7Cited by

18References

11Claims

0Family size

Assignee

Wella GmbH · DE

Inventors

Manfred Schmitt · Munich, DE
Uwe Lenz · Zwingenberg, DE
Wolfgang Balzer · Alsbach, DE
Henk Niessink · Darmstadt, DE

Key dates

Filing date	May 1, 1997
Grant date	Feb 2, 1999
Priority date	—
Expiry date	May 1, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K8/9794
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The composition for dyeing keratin fibers is mixed with water prior to use and contains from 35 to 75 percent by weight of at least one powdery vegetable dye material; from 25 to 65 percent by weight of at least one oil; and from 0.001 to 15 percent by weight of a physiologically unobjectionable nitro dye compound, azo dye compound, quinone dye compound and/or a triphenylmethane dye compound. A method of dyeing hair using this composition is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.