Process for the preparation of a dyeing composition for the dyeing of keratinous fibers from pressurized steam
AssigneeL'oreal
InventorsJean-François Grollier, Roland De La Mettrie, François Cottard
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Abstract
Disclosed herein is a process for the preparation of a dyeing composition intended for dyeing keratinous fibers comprising percolating pressurized steam through a suitable pulverulent compound, as well as a device for packaging such a compound and a dyeing process using such a dyeing composition.
Claims22
A process for preparing a dyeing composition for dyeing keratinous fibers, comprising percolating steam under a pressure of at least 3 bar through at least one pulverulent compound capable of generating a solution capable of dyeing keratinous fibers.
A process for dyeing keratinous fibers, comprising
- preparing a dyeing composition, comprising percolating steam under a pressure of at least 3 bar through at least one pulverulent compound capable of generating a solution capable of dyeing keratinous fibers;
- and
- applying the dyeing composition to the keratinous fibers for a time sufficient to develop a desired coloration.
A device for packaging at least one pulverulent compound capable of generating a solution capable of dyeing keratinous fibers, comprising a closed housing delimited by at least one wall at least partially permeable to steam under a pressure of at least 3 bar, wherein the closed housing comprises the at least one pulverulent compound capable of generating a solution capable of dyeing keratinous fibers.
Dependencies are inferred from the claim text.