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US 2017/0000707 A1Published application
Method for Dyeing Keratin Fibres
AssigneeAlfa Parf Group S.P.A.
InventorsKatiuscia Grevalcuore, Antonio Consoli
Life of this patent
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Abstract
Disclosed is a method of dyeing keratin fibres, in particular hair, which involves: a) achieving the desired colour by mixing two or three compositions, each of which includes a single direct dye, magenta, blue or yellow, having similar performance characteristics b) adding the mixture obtained at step a) to a diluent composition; c) mixing and applying the composition obtained at step b) to the hair, optionally after checking the resulting colour by comparing it with reference standards.
Claims11
A method of dyeing keratin fibres, in particular hair, which comprises:
- a) achieving the desired colour by mixing two or three solutions, each of which includes a single direct dye, magenta, blue or yellow having similar performance characteristics, with the proviso that the blue dye is not HC Blue 15;
- b) adding the mixture obtained at step a) to a diluent composition;
- c) mixing and application of the composition obtained at step b) to the hair, optionally after checking the resulting colour by comparison with a reference standard.
Dependencies are inferred from the claim text.