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US 2003/0154562 A1Published application
Two step permanent coloring of hair
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsPadmaja Sarojini, John Brian Bartolone, Alexander C. Chan
Life of this patent
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Abstract
A method for treating hair which comprises: first contacting said hair with a substantially inactive mixture of oxidative hair dye precursors; and allowing said mixture to remain in said hair for a period of about 30 seconds to about 60 minutes; followed by contacting said hair with a developer to achieve long lasting hair color change, is described.
Claims18
A method for treating hair which comprises:
- a) contacting said hair with a substantially inactive mixture of oxidative hair dye precursors;
- and
- b) allowing said mixture to remain in said hair for a period of about 30 seconds to about 60 minutes.
A method according to claim 11 wherein said oxidative composition comprises
- a) about 0.1 to about 5.0% of an oxidative compound;
- b) about 0.1 to about 3.0% of a basifying agent;
- and
- c) an aqueous carrier.
1 more element
A kit for permanently coloring hair which comprises:
- a. a hair colorant composition in a container,
- b. a hair developer composition in a container, and
- b) written instructions that direct that the hair colorant part is applied to the hair as a substantially inactive mixture for about 30 seconds to about 60 minutes.
Dependencies are inferred from the claim text.