Dyes and colorants
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsDetlef Hollenberg, Horst Hoeffkes, Frank Naumann, David Rose, Leszek J. Wolfram, Joachim-Kurt Foitzik
Life of this patent
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Abstract
A hybrid dye is provided that is useful for coloring keratin fibers and skin. The hybrid dye has the structure X-S-Y, where X is derived from a substantive dye, Y is derived from an oxidation dye precursor or a melanin precursor, and S is a direct bond or spacer group. The present invention also provides a composition for coloring keratin fibers that contains the hybrid dye.
Claims33
A composition for coloring keratin fibers comprising a hybrid dye corresponding to formula (I):
- X—S—Y (I)
- wherein X is a group derived from a substantive dye;
- wherein Y is a group derived from a percursor of melanin that is a derivative of an indoline;
- and
- wherein S is a direct bond or a spacer group.
A method of coloring keratin fibers comprising applying to keratin fibers a hybrid dye corresponding to formula (I):
- X—S—Y— (I)
- wherein X is a group derived from a substantive dye;
- wherein Y is a group derived from (i) a primary intermediate oxidation dye precursor, (iii) a secondary intermediate oxidation dye precursor, or (ii) a precursor of melanin that is a derivative of an indoline;
- and
- wherein S is a direct bond or a spacer group.
A method of coloring human skin comprising applying to human skin a hybrid dye corresponding to formula (I):
- X—S—Y— (I)
- wherein X is a group derived from a substantive dye;
- wherein Y is a group derived from (i) a primary intermediate oxidation dye precursor, (ii) a secondary intermediate oxidation dye precursor, or (iii) a precursor of melanin that is a derivative of an indole or an indoline;
- and
- wherein S is a direct bond or a spacer group.
A composition for coloring keratin fibers comprising a hybrid dye corresponding to formula (I):
- X—S—Y— (I)
- wherein X is a group derived from a substantive dye;
- wherein Y is a group derived from (i) a primary intermediate oxidation dye precursor, or (ii) a secondary intermediate oxidation dye precursor, wherein S is a direct bond or a spacer group;
- and
- at least one oxidizing agent.
The hybrid dye 1-((3-((4-aminophenyl)-amino)-propyl)-amino)-anthracene-9, 10-dione.
The hybrid dye 1-Amino-4-((3-((4-aminophenyl)-amino)-propyl)-amino)-anthracene-9,10-dione-2-sulfonic acid.
The hybrid dye 4-((2-((4-amino-2-nitrophenyl)-amino)-ethyl)-amino)-phenol.
The hybrid dye 4-((2-((2,4-dinitrophenyl)-amino)-ethylamino)-phenol sulfate.
The hybrid dye (2-((2-amino-4-nitrophenyl)-amino)-ethyl)-naphthylamine.
The hybrid dye (4-amino-2-nitrophenyl)-((3,5-dimethoxyphenyl)-methyl)-amine.
The hybrid dye 2-(5,6-dimethoxyindoliyl)-5-nitrophenylamine/4-(5,6-dimethoxyindolyl)-3-nitrophenylamine.
Dependencies are inferred from the claim text.