| 摘要 |
Use of a multi functional multi-carbosite coupling agent to protect the color from washing off from artificially colored keratinous fiber, preferably hair, where the coupling agent is an electrophilic hydrocarbon compound containing neither aldehyde group, nor carboxylic acid group, nor formaldehyde generator group, is claimed. Independent claims are included for: (1) a process for protecting the color from washing off artificially colored keratin fibers comprising applying a composition comprising the multi functional multi-carbosite coupling agent on the fibers; (2) a process for coloring of keratinous fibers, preferably hair, comprising applying a direct dye composition (A) or oxidation dye composition to develop color, and applying the composition in a medium; and (3) a multi-component coloring agent comprising a first component comprising the direct dye or oxidation dye composition (A) and a second component comprising the composition containing the coupling agent in the medium; a first component comprising a composition (A1) comprising direct dye, a second component comprising a composition (A2) containing oxidizing agent and a third component comprising the composition containing coupling agent in a medium; or first component comprising a composition (A3) comprising oxidation base and optionally coupler and/or direct dye, second component comprising a composition (A4) containing the oxidizing agent and a third component comprising the composition containing coupling agent in medium. |
