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US 10,500,149 B2Granted
Aqueous colorant composition and use thereof
AssigneesNatural Cosmeticos S.A., Warner Babcock Institute for Green Chemistry, LLC
InventorsJuliana Carvalhäes Lago, Adriana de Andrade Fregonesi, Ana Paula Pedroso De Oliveira, John C. Warner, Laura Muollo, Jennifer Cookson, Carla Scanavez
Life of this patent
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Abstract
The present invention refers to an aqueous colorant composition comprising poly(lactic acid) (PLA) and a colorant. The invention also refers to the uses of said composition particularly in methods for coloring hair.
Claims8
An aqueous colorant composition comprising poly(lactic acid) (PLA) and a colorant, wherein the PLA comprises 5.8-6.0 wt %. of the total colorant composition.
A method of coloring hair comprising the steps of:
- a. First applying to the hair an aqueous PLA dispersion;
- and then
- b. subsequently applying a colorant to the hair.
Dependencies are inferred from the claim text.