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US 2026/0216050 A1Published application
Process for dyeing keratin hair fibers comprising the application of a treatment with a reducing agent and of a composition comprising a (poly)carbodiimide compound and a colouring agent
AssigneeL'oreal
InventorsAlexandra Charrier, Romain Salva, Anne-Claude Dublanchet, Alexis Liard
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Abstract
The present invention relates to a process for dyeing keratin hair fibers comprising: (i) a step consisting in treating the keratin hair fibers with a composition T comprising at least one reducing agent, and then (ii) a step consisting in applying to the keratin hair fibers at least one dye composition C comprising: (1) at least one (poly)carbodiimide compound; and (2) at least one colouring agent chosen from pigments, direct dyes and mixtures thereof.
Claims18
Process for dyeing keratin hair fibers comprising:
- (i) a step consisting in treating the keratin hair fibers with a composition T comprising at least one reducing agent, and then
- (ii) a step consisting in applying to the keratin hair fibers at least one dye composition C comprising:
- (1) at least one (poly)carbodiimide compound;
- and
- (2) at least one colouring agent chosen from pigments, direct dyes and mixtures thereof.
2 more elements
Dependencies are inferred from the claim text.